Method of effective selection procedure of range considering range selection target in wide-band system of wireless access

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a wide-band wireless access system. A method for a mobile station to make a choice of the range in a wide-band wireless access system involves the following stages: transfer of the first code of a preamble of selection of the range for requesting of selection of the range to the basic station through the first possibility of selection of the range of the first frame, and if the first message is received from the basic station before the timer elapses, which indicates time limit, with that, the first message including a response to the first code of the preamble of selection of the range is transmitted during a limited period of time, and it is determined, whether a successful request for selection of the ranged was made by means of the first message or not.

EFFECT: effective selection of a range.

9 cl, 13 dwg, 3 tbl

 

Area of technology

[1] the Present invention relates to a broadband wireless access system and, in particular, to a method for a mobile station and a base station to perform the procedure effective range, given the purpose of the range selection, and device for its implementation.

The level of technology

[2] Basic standard set by a Working group IEEE 802.16 Institute of electrical and electronics engineers (IEEE) includes the IEEE 802.16-2004, which is called fixed WiMAX (broadband access technology in the microwave range), and the IEEE 802.16 e-2005 (hereinafter referred to as 16th), which is called mobile (mobile) WiMAX. Institute of electrical and electronics engineers (IEEE) has given its final approval to the IEEE 802.16 e-2005 in December 2005. The most modern version of mobile WiMAX technology is based on standards including the IEEE 802.16-2004, IEEE 802.16 e-2005 (this document is included in the Amendment IEEE 802.16-2004 and IEEE 802.16-2004/Amendment/D8. Currently, the procedure of standardization of IEEE 802.16 m mobile WiMAX system next generation is carried out by the Working group TGm in the framework of the Working group IEEE 802.16 Institute of electrical and electronics engineers (IEEE).

[3] Among the stages of the process procedure of the first(or initial) registration in the network, the configuration of transmission parameters (i.e., frequency offset, time offset, transmit power) performed by the mobile station, in order to make a connection on the uplink connection with the base station, is called the "initial range".

Thus, after performing the registration in the network, the mobile station performs a periodic band selection in order to continuously maintain the upward connection to the base station. Additionally, other types of band selection includes a range of handover for allowing the mobile station oppostite procedures for the operation of handover, and select the range with the request bandwidth, allowing the mobile station to request bandwidth uplink when data intended for transmission, were generated.

[4] In the broadband wireless access system, when the process of band selection in accordance with each type selection range code group multiple access with code division multiplexing CDMA (or preamble of a range selection) and the scope for which code CDMA (multiple access code division multiplexing) is used for transmission are allocated (or assigned) by the network through the channel [e.g., UL-MAP (measuring access to goes back�of the present lines of communication], broadcasting system information. Accordingly, for example, in order for a mobile station to perform a range for the handover, the mobile station must request the selection range for the handover by selecting a specific code among CDMA codes to select the range for the handover, and by transmitting the selected code to the network by poresto initial range and the zone select the range for the handover. By using this method, the network may be able to identify different types of band selection using an accepted CDMA code and the segment for which the CDMA code is transmitted.

[5] More specifically, in order to perform initial ranging, the mobile station of IEEE 802.16 m (AMS station) receives from a base station synchronization for downlink, wherein the base station becomes the target for performing the process of selecting the range, and then acquires the transmission parameter for uplink. Depending on the random deferment of transmission, the mobile station selects a slot selection range (or range) and randomly chooses the initial code of the preamble of the range through which pass this arbitrary selected initial code of the preamble of band selection on the selected slot selection range. The base station receiving the code of the preamble of the range, transmits the confirmation message, select a range (hereinafter, AAI_RNG-ACK message) to the mobile station. Here, the confirmation message, select the range may include a preamble code select the range that is passed to one or more mobile stations in a predetermined frame, the reception status code, and physical compensation value based on the reception status.

[6] More specifically, when the base station adopts the codes of the preamble of range from the mobile station, as a response to the adopted codes of the preamble of the range, the base station transmits information about the distribution (or destination) of the message AAI_RNG-ACK using broadcast masking code (Broadcast Masking Code) to the mobile station via the broadcast assignment information element A-MAR IE. When the AAI_RNG-ACK message is transmitted to the particular mobile station without request, information distribution (or destination) is transmitted to the mobile station by means of an information element A-MAR IE on the basic purpose of the downward communication channel DL using unicast STID.

[7] When the mobile station receives the confirmation message, select the range and verifies bitmap confirm the selection range corresponding message, in the absence of the successfully decoded code� of the preamble of the range, existing slot selection range, selectable by the mobile station, or in case of no response to any attempts initial ranging, performed by the mobile station, included in the confirmation message, select the range, the mobile station may determine that the processes of the initial band selection, which tries to make itself the mobile station, was unsuccessful. Accordingly, the mobile station restarts the initial procedure of choice in the range.

[8] In the case where the initial range was successfully received, the base station may provide the following three different types of responses of the mobile station through the AAI_RNG-ACK message. Firstly, in the case where the condition of the range is a "continue" physical compensation value is included in the corresponding message. Secondly, in the case where the condition of the range is a success, the base station assigns (or distributes) the resources of the upward communication channel for transmitting a request message for the range. Thus, in addition, may be included physical compensation value. In conclusion, in the case where the condition of the range is a "forced termination", the base station may request the mobile station to stop the procedure SEL�RA range for a predetermined period of time.

[9] In the case where the condition of the range is a "continue", the mobile station performs the procedure quick selection range using physical compensation value included in the AAI_RNG-ACK message. Thus, in the case where the condition of the range is a success, the mobile station is assigned resources of the upward communication channel from the base station and the mobile station transmits the AAI_RNG-REQ message through the assigned resources of the upward communication channel.

[10] the Message AAI_RNG-ACK corresponds to the initial band selection and band selection during handover / during periodic ranging. The base station transmits a corresponding message within a predetermined time (i.e., sector: transmission offset).

[11] In the case of IEEE 802.16 m system, the procedure of handover should be completed within the interrupt time of handover (30 MS) on demand.

[12] Therefore, since the operations belonging to the procedure of handover should be performed with minimal delay, as any of the operations that can be performed during the process of handover, the base station must quickly transmit a confirmation message AAI_RNG-ACK to the mobile station, as a response to the band selection for the handover so that the mobile station can confirm�s, was adopted or not preamble code select the range for the handover sent by the user equipment.

[13] Here, taking into account overheads, it may be inefficient to determine the time of transmission of the acknowledgement message AAI_RNG-ACK for initial/periodic ranging, to have the same date of transmission of confirmation message AAI_RNG-ACK to select the range for the handover. Accordingly, the time of transmission and the process of differentiation messages with confirmation AAI_RNG-ACK must be determined on the basis of each goal range.

Disclosure of the invention

Technical problem

[14] Accordingly, the present invention aims to provide a method for a mobile station and a base station, to perform the procedure effectively select the range with respect to the purpose of range and device for its implementation, which substantially eliminates one or more problems due to limitations and disadvantages of the prior art.

[15] Another objective of the present invention is to provide a method for a mobile station and a base station to perform efficient procedure effective range with respect to the purpose of the range, and the device for its implementation, which can effectively perform the process of the selection range.

[6] a Further purpose of the present invention is to determine the time of transmission of a confirmation message select the range with respect to the purpose of selection range.

[17] Additional advantages, objectives and properties of the invention will be set forth in part in the description which follows, and in part will be understood by the ordinary skilled in the art after studying the following description, or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure specified in detail in the present description and claims, and accompanying drawings.

The solution to the problem

[18] To achieve these objectives and other advantages and in accordance with the purpose of the invention, as implemented and broadly described herein, in accordance with the variants of implementation of the present invention, in the method for a mobile station to perform range selection in the broadband wireless access system, a method for performing band selection includes stages: the transmission of the first preamble code of the range to query the range to the base station via the first choice of the range of the first frame, and when the first message is received from the base station before the timer expires indicating a limited time in this case the first message including a first code of the preamble of band selection is transmitted for a limited time definition, was successfully requested and select the range with the use of this first message.

[19] thus, if the answer to the first code of the preamble of range not included in the first message, or in the case where the first message is not accepted before the timer expires, the step of determining whether successfully made a request for range selection may be performed such that, when information purposes ascending line for transmitting a second message to the base station received from the base station with respect to the first preamble code select the range before the timer expires, a request for range selection can be defined as successful, and when information purposes ascending line is not adopted before the timer expires, a request for selecting the range may be defined as completed successfully.

[20] Also, the first message includes a frame indicator indicating at least one frame that includes the range state of the transmission channel) to which the first message, a bitmap (RNG-ACK Bitmap) that indicates the status of decoding the code, taken in the choice of the range of each frame specified field frame indicator, and at least one code of the preamble of the range, decoded successfully at the choices range�on.

[21] In this case, the step of determining whether successfully made a request for range selection, when the frame indicator indicating the first frame included in adopted the first message, when the bit for the first opportunity in the bitmap (RNG-ACK Bitmap) for the first frame is set at 1, and when the code of the preamble of the first band selection is enabled, the request range may be determined to have completed successfully.

[22] in addition, the first message may be a confirmation message select range (AAI_RNG-ACK), the second message may be a message asking you to select the range (AAI_RNG-ACK), wherein the timer can be T31 timer.

[23] In accordance with another variant implementation of the present invention, in the method for performing mobile station band selection in the system broadband wireless access, a method for performing band selection includes stages: detection of the preamble code select the range using at least one selectable range, and, on the basis of the detection result, the transmission of the first message that includes a response to the reception status code of the preamble of the selection range on at least one mobile station, the frame which includes the range, each of which has, at least one code of the preamble of the range �detektirovanie from there before expire time of a predetermined timer.

[24] thus, the method may further include the step of transmitting assignment information resources of the uplink for transmission of the second message at the first mobile station, wherein, among the at least one another of the code of the preamble of the selection range, the first mobile station is handed over successfully adopted the first code of the preamble of the range, which does not require any adjustment of the transmission parameters for the uplink. Thus, here, the answer to the first code of the preamble of the range may be excluded from the first message.

[25] Also, the first message includes a frame indicator indicating at least one frame that includes the range referenced in the first message, a bitmap with the acknowledgment of the range (RNG-ACK Bitmap) that indicates the status of decoding the code, taken in the choice of any frame range specified field frame indicator, and at least one code of the preamble of the range, successfully decoded in the choice of the range.

[26] In this case, the frame indicator includes at least one bit indicating the number superquadra comprising a frame indicated by the frame indicator, and at least od�n bits, indicates the frame number in supercade.

[27] in addition, the first message may be a confirmation message, select the range (AAI_RNG-ACK), the second message may be a message asking if you select range (AAI_RNG-ACK), and the timer may be the timer T31.

[28] In accordance with another variant implementation of the present invention, in the mobile station device for performing band selection in the system broadband wireless access, a mobile station includes a processor and a radio frequency (RF) module configured to transmit and receive radio frequency signals to and from the outside depending on the control processor, wherein the processor transmits the first preamble code select the range to apply the range to the base station via the first choice of the range of the first frame, and wherein, when the first message received from the base station before the timer pointing a limited time, expires, wherein the first message includes a response code of the preamble of the first band selection is transmitted during this limited time, the processor determines whether or not the query about the range selection is done successfully through the use of the first message.

[29] thus, in the case where the response to the first preamble code select diapazonuna included in the first message, or in the case where the first message is not accepted before the timer expires, the processor determines whether or not the request range is successfully done, what is done in such a way that, when the information purposes ascending line for transmitting a second message to the base station received from the base station, the first preamble code select the range before the timer expires, a request for range selection can be defined as successful, in this case, when information purposes ascending line is not adopted before the timer expires, request choice range can be defined, as done fails.

[30] Also, the first message includes a frame indicator indicating at least one frame that includes the possibility of selecting the range to which the first message, a bitmap (RNG-ACK Bitmap) that indicates the status of decoding the code, adopted in the choice of the range of each frame specified field frame indicator, and at least one code of the preamble of the range, successfully decoded in the choice of the range.

[31] thus, when a frame indicator indicating the first frame, include taken in the first message, when the bit for the first opportunity in the bitmap (RNG-ACK Bitmap) for the first frame is set at 1, and to�Yes the first code of the preamble of band selection is enabled, the processor may determine that a request for range selection must be successful.

[32] in addition, the first message may be a confirmation message, select the range (AAI_RNG-ACK), the second message may be a request message, select the range (AAI_RNG-ACK), and the timer can be TS timer.

[33] it Should be understood that both foregoing General description and the subsequent detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

Advantages of the invention

[34] a Method for a mobile station and a base station to perform the procedure effective range, taking into account the purpose of the range, and a device for performing this method have the following advantages.

[35] In accordance with at least one variant of implementation of the present invention, the procedure of choice range can be effectively performed through the use of a relatively small overhead.

[36] Also, by applying the transmission time of the acknowledgement messages select the range in accordance with (or considering) the purpose of the range selection, the procedure, until the procedure when the handover can be performed effectively so that systems�s requirements can be satisfied.

[37] Specialists in the art it will be apparent that various modifications and changes may be made in this invention without departing from the idea or scope of the inventions. Thus, it is assumed that the present invention covers the modifications and modifications of this invention provided that they fall within the scope of the attached claims and their equivalents.

Brief description of the drawings

[38] the accompanying drawings, which are included in the application to provide additional understanding of the invention and constitute a part of this application, illustrate variant of implementation (implementation options) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

[39] Fig.1 shows an example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention;

[40] Fig.2 shows another example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention;

[41] in Fig.3 shows another example of the procedure of selecting the range of the handover in accordance with a variant implementation of the present invention;

[42] Fig.4 shows another example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention;

[43] Fig.5 shows another example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention;

[44] Fig.6 shows another example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention;

[45] Fig.7 shows an example of the procedure of the initial band selection in accordance with a variant implementation of the present invention;

[46] Fig.8 shows another example procedures to perform an initial band selection in accordance with a variant implementation of the present invention;

[47] Fig.9 presents another example procedures to perform an initial band selection in accordance with a variant implementation of the present invention;

[48] Fig.10 shows an example of the procedure of the selection range at the handover in accordance with another exemplary embodiment of the present invention;

[49] Fig.11 shows another example of the procedure of the selection range at the handover in accordance with another exemplary embodiment of the present invention;

[50] Fig.12 shows an example of the procedure of selecting the range of the handover in accordance with one variant of implementation of the present invention and the initial procedure of choice dia�of azone in accordance with another variant implementation of the present invention, executed simultaneously; and

[51] Fig.13 presents a block diagram depicting the structure of the transmitting side and the receiving side in accordance with another variant implementation of the present invention.

An example of carrying out the invention

[52] Next will be made detailed message about preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. To the extent possible, the same numbers will be used throughout the drawings the same or similar items.

[53] the Present invention relates to a system for wireless access. Next, a method for the effective performance of the procedure, select the range, taking into account the purpose of the range, and a device for performing this method will be disclosed in accordance with preferred embodiments of implementing the present invention.

[54] embodiments of the invention, discussed below, correspond to predetermined combinations of elements, features and characteristics of the present invention. Also, if not mentioned otherwise, the characteristics of the present invention may be considered as optional features of the present invention. Here, each element or characteristic of the present invention may also funktioner�VAT or carried out without combining with other elements or characteristics of the present invention. On the other hand, a variant implementation of the present invention can be implemented by combining some of the elements and/or characteristics of the present invention. Additionally, the order of operations described in accordance with a variant implementation of the present invention may vary. In addition, element configuration or characteristics of any specific embodiment of the present invention can also be enabled (or shared with) in another embodiment of the present invention, or a configuration item or characteristics of any one embodiment of the present invention may replace a corresponding configuration or feature of other embodiments of the present invention.

[55] In the description of the present invention, embodiments of the present invention will be described mainly focusing on the reception and transmission of data between a base station and a terminal (or mobile station). Here, the base station may be referred to as a terminal node of a network, which performs a direct connection to the terminal. Periodically, the description of the present invention, the specific operation of the present invention, which are described as being performed by the base station, can also be performed upstream aslamazov station.

[56] More specifically, in a network consisting of a number of network nodes including the base station, it is obvious that various operations that are performed in order to communicate with the terminal, can be performed by the base station or "b node" network to the base station. Here, the term 'base station (BS)' may be replaced by other terms such as fixed station, B-node, Node B, enhanced node B eNode B ' (eNB), access point (AP), advanced base station (ABS), etc. Additionally, the term "terminal" may be replaced by terms involving the user equipment (UE), mobile station (MS), mobile subscriber station (MSS), an advanced mobile station, subscriber station (SS) etc.

[57] embodiments of the present invention may be implemented through a variety of ways. For example, embodiments of the present invention may take the form of hardware, firmware, or software, or in combinations of hardware, firmware and/or software.

[58] In the case of the implementation of embodiments of the present invention in the form of hardware, a method in accordance with variant�mi of implementation of the present invention can be implemented by using, at least one of the following: specialized integrated circuit (ASIC), digital signal processors (DSP), digital signal processor (DSPDs), programmable logic devices (PLD), programmable gate array (FPSA), processors, controllers, microcontrollers, microprocessors, etc.

[59] In the case of the implementation of embodiments of the present invention in the form of firmware or software, the method in accordance with the options of implementing the present invention may be in the form of a module, procedure or function that performs the above described functions or operations. Computer program may be stored in the memory unit and executed by the processor. Here, the memory block can be placed inside or outside the processor, and a memory block can transmit data to the processor and to receive data from the processor through the use of a wide range of ways that are already known.

[60] In this invention, embodiments of the present invention may be supported by at least one of the published documentation of standards for wireless access systems including IEEE 802 system, 3GPP LTE system, and 3GPP2 system. More specifically, the embodiments of the present invention, the individual steps �work or structure of the present invention, you missed in the description of the present invention, in order to clarify and explain the scope and essence of the present invention can also be based on the use of the above-described documents standards. In addition, the terms disclosed in the description of the present invention, may be described on the basis of the above-mentioned documents standards. More in detail, embodiments of the present invention may be supported, at least one of the documents of the standards of IEEE 802.16 system, such as specifications P802.16-2004, P802.16e-2005, P802.16Rev2, and IEEE P802.16m.

[61] Specific terms used in the following description of the present invention is offered to facilitate understanding of the present invention. And, therefore, without departing from the technical scope and ideas of the present invention, such specific terms may also be modified and/or replaced by other terms.

[62]

[63] the First variant implementation

[64] Proposed a method for performing the procedure, select the range in which the time of transmission of the confirmation message select the range based on the time at which the base station receives the code of the preamble of range from the mobile station, is determined, in accordance with the first variant implementation of the present invention.

[65] the Following describes in detail the procedure of the selection range at the handover in accordance with a variant implementation of the present invention.

[66] First, the mobile station selects a channel to select a range (i.e., range) among multiple channels to select the range assigned to the x-th frame. Then, the mobile station transmits a preamble code of a range selection when the handover using the selected channel range selection.

[67] the base station which received preamble code for the range in the handover through the appropriate choice of the range of the x-th frame during the handover, the mobile station transmits AAI_RNG-ACK message (acknowledgment message select the range) before expire time setting of the x-th frame to select a range when handover (hereinafter for simplicity referred to as delay "delayHO_RNG_ACKor the time when the setting time expires (i.e., within/in/within "x"+"delayHO_RNG_ACK").

[68] Here, the code of the preamble of the range when the handover includes a preamble code of a range selection when the handover on the basis of competition, and. also the code of the preamble of the range allocated for the purpose of handover.

[69]

[70] Below, in accordance with a variant implementation of the present invention will be determined by the delay "delayHO_RNG_ACK".

[71] the Delay "delayHO_RNG_ACK"may be referred to as the time of transmission of the confirmation of the selection range (RNG_ACK_TX_Time) or T31 timer.

[72] W�ect, delay "delayHO_RNG_ACK"may be set as one frame or more, and delayHO_RNG_ACKcan be defined as a block frame or block of superframes.

[73] Additionally, the delay "delayHO_RNG_ACK"may determine the value fixed in advance between the mobile station and the base station, or delay "delayHO_RNG_ACK"can be transmitted to the mobile station via the message control the medium access (hereinafter, the MAC message) (for example, the AAI_HO-CMD message) associated with the handover transmitted to the mobile station from the serving base station.

[74] In the case where you are using MAC message, information about the delay "delayHO_RNG_ACK"defined through the exchange of information between the serving base station and target base station is delivered to multiple mobile stations. In this case, information about the value of delayHO_RNG_ACK"may be activated only when in AAI_HO-CMD message field CDMA_RNG_FLAG is set to "1", i.e., only when the corresponding message announces (or specifies) the process of selecting the range of the handover. Using this method, the target base station may change the date of transmission message AAI_RNG-ACK in accordance with the traffic load.

[75] the Target base station can apply different delay values "deIayHO_RNG_ACK"FOR each�Oh particular mobile station, performing handover (e.g., when distributed coded preamble of range), or the target base station can apply the same value delayHO_RNG_ACK"For all the mobile stations performing handover (e.g., when assigning code to the preamble of the range is not allocated).

[76] In the case where the mobile station cannot obtain information about the delay "delayHO_RNG_ACK"through the MAC message, the mobile station may determine that the message AAI_RNG-ACK is transmitted to the base station in accordance with a predefined delay "delayHO_RNG_ACK". In this case, it is preferred that the delay "delayHO_RNG_ACK"delivered through the AAI_HO-CMD message is less than or equal to the predefined value delayHO_RNG_ACK".

[77] for Example, a mobile station accepts the AAI_HO-CMD message with information about the delay "delayHO_RNG_ACK"mounted on frame 1, mobile station B has not received the relevant information. In this case, it is assumed that a pre-selected delay value "deIayHO_RNG_ACK"that is applied when the delay value "deIayHO_RNG_ACKcannot be received from the base station, is equal to 1 superquadra. In this case, when the mobile station transmits A code Preah�Bula band selection, and yet, when a mobile station successfully receives AAI_RNG-ACK message, indicating that the base station has successfully received the transmitted preamble code select the range in the next frame, a mobile station re-attempts to perform the process of selecting the range. On the other hand, when the mobile station B transmits a preamble code of the range to the base station, when the mobile station B fails takes AAI_RNG-ACK message, indicating that the base station has successfully received the transmitted code of the preamble of the range, until next superquadra, the mobile station B tries to perform the process of the selection range. Obviously, in the example described above, it is assumed that information about resources for uplink (UL grant) is not provided to the mobile station until the time appointed by using latency "deIayHO_RNG_ACK"that applies to each mobile station. When the base station assigns resources uplink mobile station, this implicitly indicates that the base station has successfully received preamble code for the range, referred to the mobile station.

[78] Further, the message AAI_RNG-ACK in accordance with this variant implementation of the present invention will not be considered in detail.

[79] the Message AAI_RG-ACK includes information of the bitmap, indicate the status of the decoding of the preamble of the range taken for each possible choice of the range (RNG) of a specific frame, and all codes of the preamble of the selection range at the handover, which are successfully taken through the range within the corresponding frame. In this case, the base station may not include code in the preamble of the range mobile station, which resources assigned for transmission of the request message AAI_RNG-REQ until the transmission time of the acknowledgement message AAI_RNG-ACK.

[80] In an embodiment of the present invention, depending on, accepts or not the mobile station a confirmation message AAI_RNG-ACK, which includes the answer to the code passed on the opportunity of a range selection, the selected mobile station, on time or at the time assigned, and the value of delayHO_RNG_ACK"operations of the mobile station can be categorized as follows.

[81] First, the mobile station receives a confirmation message AAI_RNG-ACK, and 1) when the above-described information of the bitmap indicates that there is no code in the preamble of the range adopted by using the range selector, and the ability to select a range SEL�is extended by the mobile station, or 2) when the code of the preamble of the range transmitted by the mobile station for the appropriate choice of range not included in the confirmation message AAI_RNG-ACK, and when the mobile station is assigned resources for uplink to transmit a confirmation message AAI_RNG-ACK from the base station, the mobile station can detect cases like the answer is explicit about not acknowledge reception (explicit-NACK).

[82] on the other hand, when the mobile station has not succeeded to receive a confirmation message AAI_RNG-ACK, and when the mobile station fails in the assignment of resources uplink for transmitting a confirmation message AAI_RNG-ACK from the base station, the mobile station can determine the failure as a response explicit about not acknowledge reception (implicit-NACK).

[83] thus, the mobile station receives a confirmation message AAI_RNG-ACK when there is a code of the preamble of the range, having the above described bit map, as adopted, in the range selected by the mobile station, and when the code of the preamble of the range transmitted by the mobile station in relation to possible selection range is included in the confirmation message AAI_RNG-ACK, the mobile station may determine such cases as whether a�their reception (ACK), i.e., the mobile station may determine that the code of the preamble of the range passed to the mobile station, was successfully adopted. Although the mobile station has identified the case as an acknowledgement (ACK), but, if the mobile station fails in the assignment of resources ascending line of communication from the base station to transmit a confirmation message AAI_RNG-ACK, the mobile station starts timer T3. Subsequently, if the mobile station is assigned resources for uplink before expire time set on the T3 timer, the mobile station may stop timer T3. However, when the mobile station fails in the assignment of resources ascending line of communication before expire time set on the T3 timer, or when the mobile station determines not acknowledge reception (NAC) (i.e., explicit/implicit NACK), the mobile station decides that the procedure of choice range was unsuccessful. Accordingly, the mobile station can restart the process of selecting a range.

[84] Next, will be described in detail with reference to Fig.1 procedure select the range in accordance with the information included in the above-described delay "delayHO_RNG_ACK"and a confirmation message AAI_RNG-ACK.

[85] Fig.1 shows an example procedure for performing band selection when Hae�Dover in accordance with a variant implementation of the present invention.

[86] Fig.1 it is assumed that the delay "delayHO_RNG_ACK"that corresponds to 1 frame and that the base station does not transmit any information about the distribution (or destination) uplink for transmission of the request message AAI_RNG-REQ to the mobile station within a period of X+"delayHO_RNG_ACK".

[87] according To Fig.1, the mobile station transmits the aim of the selection range at the handover to the base station through the choice of the range of the handover, the mobile station randomly chosen (in the case of the selected range that is assigned as a dedicated goal range when handover) in the X-th frame (step S101).

[88] the Mobile station waits for a confirmation message AAI_RNG-ACK to be transmitted from the base station, even before expire time (i.e., X-y+"delayHO_RNG_ACK") appointed using delayHO_RNG_ACK"(step S102).

[89] If a confirmation message AAI_RNG-ACK is received in the range described above, the mobile station determines whether or not the bit corresponding to the range in which the mobile station has transmitted code of the preamble of the range, with "1" in the bitmap (RNG-ACK) for the X-th frame within a corresponding confirmation message AAI_RNG-ACK (step S103).

[90] Further, if the corresponding b�t of the bitmap is set to "1", then the mobile station determines whether the code of the preamble of the range that was passed to the mobile station, included in the corresponding confirmation message AAI_RNG-ACK (step S104).

[91] In the case where the code of the preamble of the range passed to the mobile station, included in this message, the mobile station determines that the code of the preamble of the range has been successfully transmitted (i.e., the ACK ACK). Further, the mobile station starts the T3 timer and waits for resource assignment uplink for transmitting the request message AAI_RNG-REQ.

[92] based On the results of the actions from step S102 to step S104, if at least one result is "no"/"no", then the mobile station further determines that the transmission of preamble code for the range was unsuccessful. Accordingly, the mobile station repeatedly transmits the preamble code of the range to the target base station.

[93] Next, will be described in detail an example in which the delay parameter "delayHO_RNG_ACK"that is allocated (or assigned) a message through AAI_HO-CMD.

[94] during the phase of preparation of handover (or stage), when the selection range for the handover using the code of the preamble of the range select [select range at the handover (HO) based multiple access code division multiplexing (CDMA)] not Sauveur�recover it, the target base station notifies the serving base station about information on the point in time at which a confirmation message AAI_RNG-ACK should be transmitted. Further, the serving base station notifies the mobile station through message AAI_HO-CMD.

[95] during the phase of execution of handover (HO) (or stage), the mobile station transmits the preamble code of the range to the target base station. Thus, if any one of the following conditions is executed, the mobile station restarts the process of selecting a range for the handover.

[96] If the provision of uplink (UL_grant) for transmitting a confirmation message AAI_RNG-ACK or request message AAI_RNG-REQ that includes code corresponding to the preamble select the range in the range for which the mobile station has transmitted code of the preamble of the range, unable to obtain before expire time set on the T3 timer. Here, the failure in the reception of the request message AAI_RNG-REQ is assumed when a confirmation message AAI_RNG-ACK having a bit that corresponds to the range selected by the mobile station, is set to "1" in RNGACK bitmap, unable to get before expire time set to TK the timer, or it is assumed that when the code transmitted by the mobile� station, not included, even when the corresponding bit in the message with the confirmation of the AAI_RNG-ACK is pre-set to "1".

[97] Although the transmission of preamble code for the range was successful when providing uplink (UL_grant) to send the request message AAI_RNG-REQ cannot obtain before expire time set on the T3 timer, or when after the transfer request message AAI_RNG-REQ response message AIRNG-RSP cannot obtain before expire time set on the T3 timer.

[98] If the messaging AAI_RNG-REQ/RSP is not completed within the 128 frames.

[99] during the execution phase handover (HO) (or stage), the base station must transmit a confirmation message AAI_RNG-ACK frame, which was detected in at least one preamble code select the range before expire time setting on the T31 timer. If the base station transmits a grant uplink (UL grant) and the adopted code of the preamble of range before expire time setting on the T31 timer, the answer to the corresponding code of the preamble of the range may be omitted from the message with confirmation AAI_RNG-ACK. Alternatively, if there is no successfully adopted code of the preamble of the range, the base station can eliminate the transmission of a confirmation message AAI_RNG-ACK.

[100] Below will be �written in detail with reference to the figures from Fig.2 according to Fig.5 stages of a process procedure of choice range when appropriate handover, when the target base station informs the serving base station information about the point in time at which a confirmation message AAI_RNG-ACK should be transmitted. In the figures from Fig.2 according to Fig.5, T31 timer will be celebrated as the time of transmission of the confirmation of the selection range (RNG_ACK_TX_Time).

[101] Fig.2 shows another example of the procedure of the selection range at the handover in accordance with a variant implementation of the present invention.

[102] according To Fig.2, the mobile station transmits a request message of handover (AAI_HO-REQ) to a serving base station to perform handover to a target base station (step S201).

[103] Accordingly, the serving base station negotiates parameters for handover with the target base station (step S202 and step S203). Thus, RNG_ACK_TX_Time information that indicates the time when a confirmation message AAI_RNG-ACK should be transmitted via the response message of handover for broadband data transmission, transmitted from the target base station to the serving base station (step S203).

[104] the Serving base station transmits RNG_ACK_TX_Time information adopted from the target base station to the mobile station through the AAI_HO-CMD message (message access control environment) (step S204).

[105] the Mobile station that took AAI_HO-CMD, transmits a preamble code of a range selection when the handover to the target base station, and, then, the mobile station waits for a confirmation message AAI_RNG-ACK before expire time specified in the information RNG_ACK_TX_Time (step S205).

[106] the Mobile station receives from the target base station, a confirmation message AAI_RNG-ACK that indicates that the status of the selection range is a "success" (success), as a response to the code of the preamble of the range passed to the mobile station (step S206).

[107] Here, a confirmation message AAI_RNG-ACK is the bit that corresponds to the choice of the range for which the mobile station has transmitted code of the preamble of the range set at "1" in the bitmap (RNG-ACK Bitmap) corresponding to the frame for which the mobile station has transmitted code of the preamble of the range. Here, the transmitted code of the preamble of the range included in the corresponding message.

[108] Further, the target base station allocates (or assigns) a mobile station resources uplink for transmission of the request message AAI_RNG-REQ (step S207), and the mobile station uses the appropriate resources for transmission of the request message AAI_RNG-REQ to the target base station (step S208).

[109] Fig.3 shows another example of the procedure of selection range for x�ndawara in accordance with a variant implementation of the present invention.

[110] according To Fig.3, since the stages of the process from S301 through S305 are identical to the stages of the process from S201 through S205 in Fig.2, are identical to the respective process steps will be omitted for simplicity of the description of the present invention.

[111] In step S306, before the time has expired, the information specified in RNG_ACK_TX_Time, the target base station transmits a mobile station information on the allocation of resources uplink for transmission of the request message AAI_RNG-REQ (step S306).

[112] Accordingly, even when the mobile station is unable to successfully receive a confirmation message AAI_RNG-ACK, the mobile station may determine the above-described transmission of information about resource allocation uplink as a clear acknowledgement ACK for the preamble code select the range for the handover, transmitted to the mobile station, and, then, the mobile station transmits a request message AAI_RNG-REQ to the target base station through the allocated resources of the upward communication line (step S307 arc).

[113] Fig.4 shows another example of the procedure of selection range for the handover in accordance with a variant implementation of the present invention.

[114] With reference to Fig.4, since the stages of the process S401 through S405 are identical to the stages of the process from S201 through S205 in Fig.2, is identical to the description corre�corresponding stages of the process will be omitted for simplicity of the description of the present invention.

[115] the Mobile station receives from the target base station, a confirmation message AAI_RNG-ACK that indicates that the condition of the range is a "continue" (continue) (step S406).

[116] Here, a confirmation message AAI_RNG-ACK includes the bit that corresponds to the range in which the mobile station has transmitted code of the preamble of the range set at "1" among bits of the bitmap (RNG-ACK Bitmap) corresponding to the frame in which the mobile station has transmitted code of the preamble of the range. Here, the transmitted code of the preamble of the range is included in the corresponding message. In addition, a confirmation message AAI_RNG-ACK that indicates that the condition of the range is a "continue") may further include information concerning the compensation value of the physical parameter.

[117] Accordingly, the mobile station may use information about the compensation value of the physical parameter so as to re-transmit to the target base station code of the preamble of the range (step S407).

[118] Fig.5 shows another example of the procedure of selection range for the handover in accordance with a variant implementation of the present invention.

[119] With reference to Fig.5, since the stages of the process from S501 through S505 is�tsya identical to the stages of the process from S201 through S205 in Fig.2, identical description of the respective process steps will be omitted for simplicity of the description of the present invention.

[120] When the mobile station fails to receive from the base station an acknowledgement message to AAI_RNG-ACK until the time specified in the time information RNG_ACK_TX_Time, the mobile station fails to assign resources uplink for transmission of the request message AAI_RNG-REQ. Therefore, the mobile station may determine that the appropriate procedure of the selection range failed (step S506).

[121] Accordingly, the mobile station re-starts the procedure of selection range (step S507).

[122] Fig.6 shows another example of the procedure of selection range for the handover in accordance with a variant implementation of the present invention.

[123] Fig.6 it is expected the situation after performing the steps in the process from S201 through S205 in Fig.2.

[124] the Mobile station transmits a code 38 of the preamble to the range for the handover to the target base station (S601).

[125] Then, a confirmation message AAI_RNG-ACK received from the base station before expiration of the time specified in the information RNG_ACK_TX_Time. Here, the bit of the bitmap RNG-ACK (RNG-ACK Bitmap) corresponding to the range selected by the mobile station is equal to "1", codes 5, 16, and 35 are included � the corresponding bit (step S602).

[126] In this case, the mobile station may determine the above-described receiving a confirmation message AAI_RNG-ACK as an implicit confirmation of reception (explicit-NACK) and may restart the process of selecting a range, to transmit to the target base station randomly selected code 57 preamble select the range for the handover (step S603).

[127]

[128] the Second variant of implementation

[129] In the second embodiment of the present invention, the point in time at which a confirmation message AAI_RNG-ACK is transmitted as a response to the code of the preamble of the range, transmitted from the mobile station, determined, and effective procedure the initial band selection is performed using this specific point in time.

[130] Below will be described the process of the initial band selection in accordance with a variant implementation of the present invention.

[131] First, in the X-th frame, the mobile station transmits the preamble code of the initial range to the base station through the multiple, randomly selected from the set of possible choices of the initial goal range select the range.

[132] When at least one code of the preamble of the initial range is detected from the corresponding frame, the base station transmits a confirmation message AAI_RNG-ACK from X-�about frame until how to expire a predetermined time to confirm the appointment of the initial range (below, for simplicity referred to as: delay "delayINITIAL_RNG_ACK")5 which is set taking into account the initial range selection.

[133] thus, the delay "delayINITIAL_RNG_ACK"can be mounted as a block of frames (e.g., 4 frames or more) or as a block of superframes. More specifically, when the value of delayINITIAL_RNG_ACKequals 1 superquadra, and when at least one code of the preamble of the initial range is detected from the plurality of preamble codes initial ranging, is assigned within arbitrary superquadra, the base station must transmit a confirmation message AAI_RNG-ACK message before the completion of the next superquadra.

[134] If the base station transmits a confirmation message AAI_RNG-ACK for the handover, response to respective codes of the preamble of the initial band selection, a detected along with the response for the code of the preamble of band selection for handover, may also be transmitted.

[135] Below will be described in detail a confirmation message AAI_RNG-ACK in accordance with a variant implementation of the present invention.

[136] a confirmation Message AAI_RNG-ACK includes a bitmap indicating the state of the decoding of the preamble of choice dia�of azone, taken within each range (RNG), at least one frame, and all codes of preambles initial band selection, which are successfully taken through the range within each frame. In this case, the base station may not include code in the preamble of the range mobile station, the resources for which to send the request message AAI_RNG-REQ appointed before the time of the transfer request message AAI_RNG-ACK.

[137] When the response code of the preamble of the initial band selection received via the selection range within the plurality of frames included in a confirmation message AAI_RNG-ACK, information about the frame index (or indicator) can be included in a confirmation message AAI_RNG-ACK to indicate each frame. In the case of the initial band selection, when there is code in the preamble of the range, designating resources for transmission of the request message AAI_RNG-REQ before the time specified by the values of the delayHO_RNG_ACK", second information corresponding code can be excluded from the confirmation message AAI_RNG-ACK.

[138] In this embodiment of the present invention, depending on whether accept or not the mobile station a confirmation message AAI_RNG-AK, which includes the response code of the preamble of the initial range given for the choice of range, the selected mobile station, or within the time specified by the values of the delayINITIAL_RNG_ACK"5 steps mobile station can be categorized as follows.

[139] First, the mobile station receives a confirmation message AAI_RNG-ACK, and 1) when the above-described information of the bitmap indicates that there is no code in the preamble of the range assumed by the choice of range, and the ability to select a range is selected by the mobile station, or 2) when the code of the preamble of the range transmitted by the mobile station in relation to the relevant selection range selection range will not be included in the confirmation message AAI_RNG-ACK, and when the mobile station is assigned resources for uplink to transmit a confirmation message AAI_RNG-ACK from the base station, the mobile station may determine such cases as an answer with a clear-confirmation of acceptance (explicit-NACK).

[140] on the Contrary, when the mobile station fails to receive a confirmation message AAI_RNG-ACK, and when the mobile station fails resources are assigned uplink for TRANS�giving confirmation message AAI_RNG-ACK from the base station, the mobile station can detect such a failure, as the answer is explicit about not acknowledge reception (NACK).

[141] Meanwhile, when the mobile station fails to receive a confirmation message AAI_RNG-ACK when there is a code of the preamble of the range, having the above described bit map adopted in the choice of range, selectable by the mobile station, and when the code of the preamble of the range transmitted by the mobile station for the corresponding choice of the range included in the confirmation message AAI_RNG-ACK, the mobile station may determine such cases as an acknowledgement (ACK), i.e., the mobile station may determine that the code of the preamble of the range, transmitted to the mobile stations has been successfully received. Although the mobile station has identified the case as a confirmation of the ASC, but, if the mobile station does not succeed in appointing a base station resource of the upward communication line for transmitting a confirmation message AAI_RNG-ACK, the mobile station starts timer T3. Thereafter, if the mobile station is assigned resources for uplink before expire time set on the T3 timer, the mobile station may stop timer T3. However, when the mobile station fails to assign resources uplink �about, as expire time set on the T3 timer, or when the mobile station determines not acknowledge reception (NACK) (i.e., explicit/implicit NACK), the mobile station determines that the procedure of choice range was unsuccessful. Accordingly, the mobile station may restart the procedure of choice band.

[142] Below will be described in detail the stages of the process procedure of the initial band selection in accordance with a variant implementation of the present invention with reference to the figures from Fig.7 of Fig.9.

[143] Fig.7 shows an example of the procedure of the initial band selection in accordance with a variant implementation of the present invention.

[144] Fig.7 it is assumed that the delay "deIayINITIAL_RNG_ACK"matches 1 superquadra that the mobile station transmits the preamble code of the initial range to the base station through the ability to select a range to process arbitrary initial choice of the range within the X-th superquadra and that the base station does not transmit any information about the distribution (or destination) uplink for transmission of the request message AAI_RNG-REQ to the mobile station within a period of [X+"delayINITIAL_RNG_ACK"]. In addition, it is also assumed that the relevant information about the code of the preamble of the choices may be included�ena without laying a base station transmitting a confirmation message AAI_RNG-ACK before the time specified information about the delay "delayINITIAL_RNG_ACK".

[145] In accordance with Fig.7, the mobile station transmits the initial selection range to the base station through the initial range selection range selection, the mobile station randomly chosen in X-m superquadra (step S701).

[146] the Mobile station waits for a confirmation message AAI_RNG-ACK to be transmitted from the base station, even before expire time (i.e., X-y+"delayINITIAL_RNG_ACK") specified by delayINITIAL_RNG_ACK(i.e., until the current supercar+1 supercat) (step S702).

[147] If a confirmation message AAI_RNG-ACK is accepted within the above-described point of time (step S703), the mobile station determines whether the bit corresponding to the range in which the mobile station has transmitted code of the preamble of the range, with "1" in the bitmap (RNG-ACK) in the corresponding confirmation message AAI_RNG-ACK (step S704).

[148] Then, if the corresponding bit of the bitmap is set to "1", the mobile station determines whether or not to enable code of the preamble of selecting the range that the mobile station has transmitted, to the corresponding confirmation message AAI_RNG-ACK (step S705).

[149] In the case where the code of the preamble of the range passed to the mobile station VC�the meter in this message the mobile station determines that the code of the preamble of the range has been successfully transmitted (i.e., the ACK ACK). Then, the mobile station starts the T3 timer and waits for resource assignment uplink for transmission of the request message AAI_RNG-REQ (step S706).

[150] based On the results of steps from step S702 to step S705, if at least one result is "no" (on) when the current supercar corresponds to X+1-th superquadra, and when the current supercar corresponds to the last frame of the downlink (step S710), then the mobile station further determines that the transfer code of the preamble of the range were not successful, and the mobile station restarts the initial procedure of choice range, at the same time, taking into account a predetermined number of repeated attempts. Accordingly, the mobile station transmits a randomly selected preamble code of the range to the base station (step S711).

[151] At the stage of determination of step S710, when the current supercar matches either X-th superquadra or X+1-th superquadra, and, even when the current supercar does not correspond to the last downstream frame, the mobile station repeats the step S702.

[152] Fig.8 shows another example procedures to perform an initial band selection in accordance with a variant implementation of the present and�acquisition.

[153] Also in Fig.8 it is assumed that the delay delayiNINITIAL_RNG_ACK"matches 1 superquadra that the mobile station transmits the preamble code of the initial range to the base station through the ability to select a range to process arbitrary initial choice of the range within the X-th superquadra and that the base station does not transmit any information to the distribution (or destination) uplink for transmission of the request message AAI_RNG-REQ to the mobile station within a period of [X+"delayINITIAL_RNG_ACK"]. However, it is also assumed that the relevant information about the code of the preamble of the range selection should be enabled without delay to the base station transmitting a confirmation message AAI_RNG-ACK before the time specified by the information about the delay "delayINITIAL_RNG_ACK".

[154] according To Fig.8, the mobile station transmits the initial selection range to the base station through the initial ranging, which the mobile station arbitrarily chosen in X-m superquadra (step S801).

[155] the Mobile station waits for a confirmation message AAI_RNG-ACK to be transmitted from the base station before expire time (i.e., X-y+"delayINITIAL_RNG_ACK") specified by delayINITIAL_RNG_ACK(i.e., until the current supercar+1 �upercut) (step S802).

[156] If a confirmation message AAI_RNG-ACK is not successfully made within the above-described point of time (step S803), even when the current supercar or X-th super frame, or X+1-th superquadra, and even when the current supercar does not correspond to the last downstream frame, the mobile station repeats the step S802. On the contrary, when the current supercar corresponds to X+1-th superquadra and also the last descendent frame, it is determined that the initial procedure of choice range was unsuccessful. Thus accordingly, the initial procedure of choice range is repeated, at the same time, taking into account a predetermined number of repeated attempts. In order to do so, the user equipment transmits a randomly selected preamble code of the initial range to the base station (steps S810 and S811).

[157] If a confirmation message AAI_RNG-ACK is accepted within the time specified by delayINITIAL_RNG_ACK", the mobile station determines whether or not the bit corresponding to the range in which the mobile station has transmitted code of the preamble of the range, with "1" in the bitmap (RNG-ACK) within a corresponding confirmation message AAI_RNG-ACK (step S804).

[158] Then, if the corresponding �it the bitmap is set to "1", the mobile station determines whether the code of the preamble of selecting the range that the mobile station has transmitted, included in the corresponding confirmation message AAI_RNG-ACK (step S805).

[159] In the case where the code of the preamble of the range passed to the mobile station is included in this message, the mobile station determines that the code of the preamble of the range has been successfully transmitted (i.e., the ACK ACK). Then, the mobile station starts the T3 timer and waits for resource assignment uplink for transmission of the request message AAI_RNG-REQ (step S806).

[160] When the bit corresponding to the choice of the range for which the mobile station itself gave code of the preamble to the choice of the range is not set to "1" in the received message of confirmation AAIRNG-ASA, or when the corresponding bit is set to "1" even when the code transmitted by the mobile station, is not included in the message, the mobile station then determines that the procedure of choice range was unsuccessful. In this case, the mobile station restarts the initial procedure of choice range, while taking into account a predetermined number of repeated attempts (step S811).

[161] thus, in the stages of the process procedure of the initial band selection in accordance with a variant implementation of the present invent�tion, the following section discusses the processing time (data) of the mobile station and the base station. When it is assumed that the processing time of the base station is 3 subframe, it can be difficult to answer code of the preamble of the range, transmitted from a mobile station, which must be included in a confirmation message AAI_RNG-ACK received before the time period expires 3 sobidrov. Therefore, the necessary constraints that must be performed in the base station or mobile station. In order to do so, a variant implementation of the present invention proposes that the base station always plans a confirmation message AAI_RNG-ACK to the last subframe downlink corresponding superquadra. Otherwise, when the mobile station receives a confirmation message AAI_RNG-ACK from the subframe that gave the code of the preamble of the initial range to the base station, before the end of the 3 sobidrov, you can offer the option of implementing the present invention that the mobile station ignores (or ignores) the received message. This process will be described in detail with reference to Fig.9.

[162] Fig.9 presents another example procedures to perform an initial band selection in accordance with this variant implementation of the present invention.

[163] wherein Fig.9 it is assumed that the delay "delayINITIAL_RNG_ACK"matches 1 superquadra that the mobile station transmits the preamble code of the initial range of the base station through the ability to select a range to process arbitrary initial choice of the range within the X-th superquadra and that the base station does not transmit any information about the distribution (or destination) uplink for transmission of the request message AAI_RNG-REQ to the mobile station within a period of [X+"delayINITIAL_RNG_ACK"]. In addition, it is also assumed that the relevant information about the code of the preamble of the range selection should be enabled without delay to the base station transmitting a confirmation message AAI_RNG-ACK before the time specified by the information about the delay "delayINITIAL_RNG_ACK".

[164] When referring to Fig.9, each of the process steps in Fig.9 is identical to each of the stages of the process in Fig.8. However, in step S904, determines expired if the time period from 3 sobidrov. Taking into account the processing time of the code of the preamble of the initial range of the base station, when it is assumed that the processing time of the base station is equal to 3 Subhadra, if the mobile station receives a confirmation message AAI_RNG-ACK from the subframe that gave the code of the preamble of the initial selection range�on to the base station, before the end of the 3 sobidrov, the mobile station ignores (or ignores) the received message and returns to step S902.

[165] Fig.9, with the exception of adding a process step S904, the other stages of the process in Fig.9 are identical to the same processes in Fig.8. Therefore, a detailed description of the identical steps will be omitted for simplicity.

[166] In another aspect, the embodiment of the present invention, it is proposed that, if the transmission of a confirmation message AAI_RNG-ACK is lowered, the mobile station recognizes this pass as an explicit acknowledgement (implicit-ASC).

[167] Below, operations of the base station and mobile station will be described in accordance with another variant implementation of the present invention.

[168] First, the base station transmits a confirmation message AAI_RNG-ACK with the frame, wherein at least one code of the preamble of the initial range is detected within the time appointed by the values of the delayINITIAL_RNG_ACK". A confirmation message AAI_RNG-ACK includes a bitmap indicating the state of the decoding of the preamble of the range adopted for each possible choice of the range (RNG) of the frame specified field frame indicator, and all codes preamble initial selection range�area, who have successfully adopted through the range within the corresponding frame. In this case, the base station may not include code in the preamble of the range mobile station, the resources for which to send the request message AAI_RNG-REQ appointed before the time of transmission of the acknowledgement message AAI_RNG-ACK.

[169] If the answer to any of the successfully received preamble code for the range are not included in the confirmation message AAI_RNG-ACK, the base station may omit the transmission of the corresponding message.

[170] Additionally, even when the decoding of codes of the preamble of the range adopted for each possible choice of the range (RNG) of the frame specified field frame indicator, is a "success" (success), the base station may omit the transmission of a confirmation message AAI_RNG-ACK. However, this case can only be applied when the code of the preamble of the range for the handover is not included among the codes of the preamble of the range, detected in the confirmation message AAI_RNG-ACK.

[171] In the case of the mobile station, if the message with the confirmation of the AAI_RNG-ACK indicates that there is no code in the preamble of the range, successfully adopted in the range in which the mobile station itself gave code preamble initial choice�and range, or if the code of the preamble of the range transmitted by the mobile station does not exist, it is determined that the procedure of choice range was unsuccessful, and, accordingly, the initial procedure of choice range can be retriggered. However, in other cases, the mobile station may determine that the transmission of the corresponding code of the preamble of band selection was successful.

[172] Because the base station cannot eliminate the transmission of a confirmation message AAI_RNG-ACK, even if the mobile station fails to receive the corresponding confirmation message RNG-ACK in the corresponding time of transmission, the mobile station that has transmitted the code of the preamble of the initial band selection, may determine the response made by the base station in relation to the code transmitted to the mobile station, as an explicit acknowledgement (implicit-ACK). Therefore, in this case, the mobile station does not transmit a re-code of the preamble of range, even when the mobile station fails to receive a confirmation message AAI_RNG-ACK in the corresponding time of transmission.

[173] When using the method described above, unlike the procedure for selecting the range for the handover, as in the initial procedure of choice range the level of feelings�performance for rapid completion of the procedure is not high, in the initial procedure of choice range overhead on the alarm system can be reduced. Below, the method described above will be described in more detail with reference to Fig.10 and Fig.11.

[174] Fig.10 shows an example of the procedure of selection range for the handover in accordance with another variant implementation of the present invention.

[175] In accordance with Fig.10, the mobile station first transmits a preamble code of the initial range to the base station (step S1010).

[176] Accordingly, the base station transmits a confirmation message AAI_RNG-ACK of mobile station within the time appointed by the values of the delayINITIAL_RNG_ACK"(step S1020).

[177] Here, as in the confirmation message AAI_RNG-ACK, the state of the range indicates "continue"), as a response to the corresponding code of the preamble of the range selection, the mobile station applies the compensation value of the physical parameter included in the corresponding message, so that to re-transmit a preamble code of the initial range (step S1030).

[178] Fig.11 shows another example of the procedure of selection range for the handover in accordance with another variant implementation of the present invention.

[179] As shown in Fig.11, a mobile station with�achala transmits the preamble code of the initial range in the initial procedure of choice range of the base station (step S1110).

[180] Here, when the base station fails in receiving the code of the preamble of band selection for handover in the appropriate time, and when the reception status of all detected preamble codes of the initial band selection (including codes transmitted by the mobile station on the stage of the process S1110) is a "success" (success), the transmission confirmation message AAI_RNG-ACK may be omitted (step S1120).

[181] Accordingly, even when the mobile station fails to receive a confirmation message AAI_RNG-ACK even after the expired time, the values assigned through delayINITIAL_RNG_ACK", the mobile station may determine the response made by the base station in relation to the code transmitted to the mobile station, as an explicit acknowledgement (implicit-ASC).

[182] Meanwhile, the above-described steps of the process procedure of the initial band selection in accordance with a variant implementation of the present invention can be similarly applied to the procedure for periodic ranging.

[183] Below, an example of the above-described embodiments of the present invention, carried out together, will be described in detail with reference to Fig.12.

[184] Fig.12 shows an example of the procedure of selection range for the handover in accordance with an embodiment is p�implementing the present invention and the procedure of the initial band selection in accordance with another variant implementation of the present invention, executed simultaneously.

[185] Fig.12, it is assumed that the delay "delayINITIAL_RNG_ACK"for the pre-handover is defined as 1 frame, and that the delay "delayINITIAL_RNG_ACK"For initial/periodic pre-selection is defined as 1 supercar.

[186] according To Fig.12, the assigned code of the preamble of the range for the handover is received in the first subframe uplink, and the code of the preamble of the range of handover for code and the preamble of the initial range will be accepted in the third subframe of the 2nd frame in the uplink within the X-th superquadra. In case the code preamble select the range for the handover, because the value of the delayINITIAL_RNG_ACKequals 1 frame, a confirmation message AAI_RNG-ACK is transmitted in the third sub frame subframe downlink. A confirmation message AAI_RNG-ACK includes the response code of the preamble of the range for the handover adopted in the previous frame. Here, a confirmation message AAI_RNG-ACK may also include the response code of the preamble of the initial band selection, adopted in the previous frame.

[187] Further, although the code of the preamble of the initial range is detected from the third subframe of a third frame of the uplink, because the value of the delayINITIAL_RNG_CK "for initial/periodic range is 1 to superquadra, it is absolutely not required that the answer to the corresponding code of the preamble of the initial range should be passed within the X-th superquadra, instead, it is sufficient to transfer within X+1 superquadra. A confirmation message AAI_RNG-ACK is transmitted from the fourth frame X+1 superquadra with the answer corresponding to the two codes of the preamble of the initial band selection, prior to the time of transfer (i.e., the third frame X+1 superquadra and the second frame X+1 superquadra), may be included in the confirmation message AAI_RNG-ACK.

[188] Here, information distribution (or destination) of the message confirmation AAI_RNG-ACK, which includes the answer to the assigned code of the preamble of the range, can be delivered (or sent) to the mobile station via an information element map basic purpose (DL basic assignment A-MAR IE) using unicast identifier STID, not using the information element map broadcast destination (broadcast assignment A-MAR IE) using broadcast masking code. In addition, information of destination for each of the request messages AAI_RNG-REQ message and the response AAIRNG-RSP may accordingly be delivered (or sent) to the mobile station using information�district map element underlying purpose uplink (UL basic assignment A-MAR IE)) and the information element of the base maps of the destination downlink (DL basic assignment A-MAP IE), using both unicast identifier STID.

[189] Below, the format of the confirmation message AAI RNG-ACK in accordance with a variant implementation of the present invention will be described in detail with reference to tables one through three.

[190] table 1, shown below, describes an example of the format of the confirmation message AAI_RNG-ACK, when the value of delayINITIAL_RNG_ACKequals 1 superquadra.

[191] table 1 [table 1]

If (RNG-ACK Bitmap[i]==1){
SyntaxSize (bits)Notes
RNG-ACK_Message_Format() { (message Format)--
Management Message Round=TBD (message Type)8-
Number of frames (N_Frames) (Number of frames)3Specifies the number of frames included in the confirmation message RNG-ACK
For (k=0; k<N Frames; k++){
Frame index (Frame Indicator) (Indicator/index of the frame)30b000: 1-th frame in the previous superquadra;
0b001: 2-th frame in the previous superquadra;
0b010: 3-th frame in the previous superquadra;
0b011: 4-th frame in the previous superquadra;
0b100: 1-th frame in the current superquadra;
0b101: 2-th frame in the current superquadra;
0b110: 3-th frame in the current superquadra;
0b111: 4-th frame in the current supercute
RNG-ACK Bitmap (BitmapData map)N_RNG_Slots (slots)Each bit indicates the status of decoding a code to select the range in the appropriate selection of the range.
0b0: Not detected none code selection range
0b1: Detected at least one code select a range
For (i=0; i<N_RNG_Slots; i++){-
-
Number of Received codes(L) (Number of received codes)5Specifies the number of codes select the range included in the confirmation message RNG-ACK.
For (j=0; j<L; j++){-
Code index code)8The index code, adopted in the choice of range
Ranging Status of range)2Is used to indicate whether adopted by the base station of the communication uplink (UL) in dopustimyh limits. 0b01=continue, 0b11=abort (stop), 0b00=success (success)
If (Ranging status==0b01){-
API3Display settings:
Bit#0:”1” Adjustment�WAC offset synchronization (Timing Offset Adjustment is included;
Bit#1:"1" adjusts the power level (Power Level Adjustment enabled;
Bit#2:"1" adjusting frequency offset (Frequency Offset Adjustment is included;
If (API bit#0==1){
Timing Offset Adjustment}14Tx offset adjustment synchronization
If (API bit#1=1){
Power Level Adjustment}3Tx offset adjustment power
If (API bit#2==1){
Frequency Offset Adjustment}}}}}}8Tx offset adjustment frequency

[192] according to Table 1, under the assumption that the delay "delayINITIAL_RNG_ACKequals 1 superquadra, a confirmation message AAI_RNG-ACK may include response information, in respect of each code adopted in the possibility of SEL�RA range within the maximum range of 8 frames. For this purpose, the index field of the frame (frame indicator) configure 3 bits. Thus, when the first bit is "0", the index field of the frame may define (or specify) previous supercar, and when the first bit is "1", the index field of the frame may define (or specify) the current supercar.

[193] Further, table 2, shown below, describes another example of a format of a message with a confirmation AAI_RNG-ACK when the value of delayINITIAL_RNG_ACKequals 1 superquadra.

[194] table 2 [table 2]

SyntaxSize (bits)Notes
NG-ACK_Message_Format (){R (message Format)--
Management Message Round=TBD (message Type)8-
Number of frames (N_Frames) (Number of frames)3Specifies the number of frames included in the confirmation message RNG-ACK
For (k=0; k<N_Frames; k++){
Frame index (Frame Indicator) (Index/indicator ratio)3Bit#0: LSB 1 bit number superquadra, Bit#1~2: the index of the frame in supercade
RNG-ACK BitmapN_RNG_Slots (slots)Each bit indicates the status of decoding a code to select the range in the appropriate selection of the range.
0b0: Not detected by any code of choice of the range
0b1: Detected at least one code.
For (i=0; i<N_RNG_Slots; i++){-
If (RNG-ACK Bitmap[i]==1){-
Number of Received codes (L) (Number of received codes)5Specifies the number of codes select the range included in the confirmation message RNG-ACK.
For (j=0; j<L; j++){-
Code Index code)8The index code, adopted in the choice of range
Ranging Status of range)2Is used to indicate whether the base station of the communication uplink (UL)
acceptable limits
0b01=continue),
0b11=abort (abort),
0b00=success (success)
If (Ranging status==0b01){-
API3Display settings: (API, Adjustment parameters indication) Yeni
Bit#0: "1" offset adjustment of synchronization Timing Offset Adjustment is included;
Bit#1: "1" adjusts the power level (Power Level Adjustment enabled;
Bit#2: "1" adjustment smashey frequency (Frequency Offset Adjustment enabled
If(API bit#0==1){
Timing Offset Adjustment}14Tx offset adjustment synchronization
If(API bit#1==1){
Power Level Adjustment}3Tx offset adjustment power transmission
If(API bit#2==1){
Frequency Offset Adjustment}}}}}}8Tx offset adjustment of the transmission frequency

[195] In accordance with Table 2, under the assumption that the delay "delayINITIAL_RNG_ACKequals 1 superquadra, a confirmation message AAI_RNG-ACK may include response information in respect of each code adopted in the choice of range within the maximum range of 8 frames. For this purpose, the index field of the frame (frame indicator) to�will ntigurirwa of 3 bits. Here, each frame can be assigned through the use of the method in which first the LSB bit indicates the value of the number of superquadra.

[196] in addition, table 3, shown below, describes another example of a format of a message with a confirmation AAI_RNG-ACK, when the value of delayINITIAL_RNG_ACKequal to or greater than 2 superquadra.

[197] table 3 [table 3]

SyntaxSize (bits)Notes
RNG-ACK_Message_Format(){ (message Format)--
Management Message Round=TBD (message Type)8-
Number of frames (N_Frames) (Number of frames)3Specifies the number of frames included in the confirmation message RNG-ACK
For (k=0; k<N_Frames; k++){
Frame index (Frame Indicator) (Index/indicator ratio) TBD (4 bits or more)Bit#0~TBD-1: TBD LSB bit number superquadra,
Bit#TBD~TBD+1: the index of the frame in supercade
RNG-ACK Bitmap Map (Bitmap)N_RNG_Slots (Slots)Each bit indicates the status of decoding a code to select the range in the appropriate selection of the range.
0b0: Not detected by any code of choice
range
0b1: Detected at least one code
For (i=0; i<N_RNG_Slots; i++){-
If (RNG-ACK Bitmap[i]==1){-
Number of received codes (L) (Number of received codes)5Specifies the number of codes select the range included in the confirmation message RNG-ACK.
For(j=0; j<L; j++){ -
Code Index code)8The index code, adopted in the choice of range
Ranging Status of range)2Is used to indicate is the base station (BS) communication uplink (UL)within a reasonable time
0b01=continue),
0b11=abort (abort),
0b00=success (success)
If (Ranging status==0b01){-
API3Indication of the adjustment parameters (API):
Bit#0: "1" offset adjustment sync (Timing Offset Adjustment is included;
Bit#1: "1" adjusts the power level (Power Level Adjustment enabled
Bit#2: "1" adjusting frequency offset (Frequency Offset Ajustment) is enabled, adjusting the frequency offset;
If (API bit#0==1){
Timing Offset Adjustment}14Tx offset adjustment synchronization
If (API bit#1==1){
Power Level Adjustment}3Tx offset adjustment power transmission
If (API bit#2==1){
Frequency Offset Adjustment}}}}}}8Tx offset adjustment of the transmission frequency

[198] In accordance with Table 3, under the assumption that the delay "delayINITIAL_RNG_ACKequals or exceeds 2 superquadra, the number of bits of a frame field may be changed in response to the confirmation message AAI_RNG-ACK depending on the size of the value delayINITIAL_RNG_ACK". In this case, the last bit, and n�adidasi bit last bits together indicate the frame number in supercade, the remaining bits can specify the LSB value of superquadra.

[199] Here, when the index is another preamble code selected range equal to or greater than 64, the base station needs to notify the user terminal that the code index is equal to or greater than 64, when the base station transmits a mobile station, a message confirmation AAI_RNG-ACK corresponding to the index code. Accordingly, the size of the index code of the preamble of the choices may be included in the confirmation message AAI_RNG-ACK.

[200] Here, the size of the index code of the preamble of the range may be set (or defined) as discussed below.

[201] More specifically, when the code index is set to "0b0", the size of the index code is 6 bits, and when the code index is set to "0b1", the size of the index code is 8 bits. If the value of the index code of the preamble of the range equal to 1, then the size of all fields of the preamble code index select the range within the relevant range is 8 bits.

[202]

[203] the structure of the mobile station and the base station

[204] Below will be described in detail, as another example of implementation of the present invention, a mobile station and a base station (FBS and MBS), which are described above, embodiments of the present invention can be p�lyzovani.

[205] the Mobile station can operate as a transmitter in uplink and may operate as a receiver in downlink. Also, the base station may operate as a receiver in uplink and may operate as a transmitter in downlink. More specifically, the mobile station and the base station may include a transmitter and a receiver, so as to transmit information or data.

[206] the transmitter and the receiver may include a processor, block, element and/or means for performing the embodiments of the present invention. In particular, the transmitter and the receiver may include a block (or means) for encoding (or encryption) of the message block for decoding the encoded (or encrypted) message, an antenna for transmitting and receiving messages, etc. an Example of such transmitting and receiving side will be described in detail with reference to Fig.13.

[207] Fig.13 presents a block diagram depicting the structure of the transmitting side and the receiving side in accordance with another variant implementation of the present invention.

[208] In accordance with Fig.13, the left side represents the structure of the transmitting side and the right side represents the structure of the receiving side. Each disclosing party and the receiving party may include an antenna 5 and 10,a processor 20 and 30, transmission module (Tx module) 40 and 50, the receiving module (Rx module) 60 and 70, and the memory 80 and 90. Each element can perform its appropriate function. Below, each element will be described in detail.

[209] the Antenna 5 and 10 either transmits the signal generated in the Tx module 40 and 50 on the outer side, or receives a radio signal from the outside, thus causing the received signal Rx to the receiving module 60 and 70. When supported antenna with multiple transmitting antennas and many receiving antennas (Multiple-Input Multiple-Output, MIMO), can provide at least 2 or more antennas.

[210] the Antenna, the transmitting model Tx and receiver Rx module can configure the wireless radio (or radio frequency RF module).

[211] the Processor 20 and 30 generally controls all actions of the transmitting side or the receiving side. For example, the processor may perform a controller function for performing the above-described embodiments of the present invention, the control function variable frame level control the medium access (MAC) on the basis of performance and frequency of broadcast (or state), and the function of handover, authentication and encoding (or encryption). More specifically, the processor 20 and 30 may perform all control functions for performing the above procedures, transfer/update�display system information.

[212] In particular, the processor of mobile station performs controlling in such a manner as to select the code of the preamble of the range and to transmit the selected preamble code of the range to the base station via the option of selecting the range that best appropriate for the purpose of ranging. Also, the processor of the mobile station waits for a confirmation message AAI_RNG-ACK in accordance with the purpose of selecting the range to a predetermined point in time. Thus, when the corresponding message is received, the processor of mobile station uses the received message to verify the condition of the reception of the transmitted code of the preamble of the range, thereby determining the subsequent phase of work.

[213] In addition, the processor of the mobile station can perform all the management stages of the process disclosed in the above-described embodiments of the present invention.

[214] the Tx module 40 and 50 may perform predetermined processes of modulation and coding on the data planned by the processor 20 and 30, to be transmitted to the outside, thus delivering the processed data to the antenna 10.

[215] the Rx module 60 and 70 may execute the processes of demodulation and decoding on the signal received from the external side via the antenna 5 and 10, so that the vos�tanovich processed data in the original (or initial) state, thus delivering the recovered data to the processor 20 and 30.

[216] a Program for processing and control processor 20 and 30 may be stored in memory 80 and 90. The memory 80 and 90 may also function to temporarily store input/output data. In addition, the memory 80 and 90 may include at least one type of storage, type flash memory type, hard disk type, a multimedia micro, memory type micro (for example, SD or XD memory), random access memory (RAM), static RAM (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM), magnetic memory, magnetic disk, and optical disk.

[217] Here, the base station and relay station may perform a controller function for implementing the above-described embodiments of the present invention, the function of packet scheduling multiple access orthogonal frequency division (OFDMA)), the function of packet scheduling duplex communication with time division (TDD, a channel multiplexing, the control function of the variable frame of the MAC layer based on the operating characteristics and the frequency characteristics of the ether (or state), the function of the high-speed control� " s traffic in real time the function of handover, authentication and encoding (or encryption) functions of modulation/demodulation of the packet data, the function of high-speed error-correcting coding, and the control function of the modem in real time by means of at least one of the modules described above, or the base station may further include a separate means, module, or element to perform such functions.

[218] As described above, mobile station and base station a method of performing procedures for the effective range of the objective range and device for performing this method have the following advantages.

[219] In accordance with at least one variant of implementation of the present invention, the procedure of choice range can be effectively performed through the use of a relatively small overhead.

[220] Also, by applying the transmission time of an acknowledgement message to select the range in accordance with (or considering) the purpose of the range, the procedure until the procedure for the handover can be effectively performed, so that system requirements can be met.

[221] Specialists in the art it is obvious that various modifications and changes may be made in the present invent�AI without deviation from the essence or scope of the inventions. Thus, it is assumed that the present invention covers the modifications and modifications of this invention provided that they fall within the scope of the attached claims and their equivalents.

Industrial applicability

[222] embodiments of the present invention can be applied to various wireless access systems. Examples of various wireless access systems include a system of 3GPP (Partnership project on systems of the 3rd generation) system, 3GPP2 and/or IEEE 802.xx of the Institute of engineers on electrical and electronics. Embodiments of the present invention can be applied to all technical fields that use different access systems, and different access systems.

1. A method for performing band selection in the broadband wireless access system for mobile station, comprising stages:
transmission to the base station of the first preamble code of the range to select a range using the first choice of the range of the first frame; and
determining whether the successful procedure of the selection range on the basis of at least one of the following: a timer, a confirmation message select a range (hereinafter, the message RNG-ACK), and information about how to assign resources ascending line with�yahzee for transmission to a base station request message on selection of range (hereinafter, request message RNG-REQ), the message RNG-ACK include the answer to the first preamble code range and the timer indicates the time limit to receive the message RNG-ACK,
the transfer request message RNG-REQ, if the range was successful; and
receiving a response message on selection of range (the message RNG-RSP) in response to the request message RNG-REQ,
in this case the message RNG-ACK contains the index of the frame indicates the frame containing the range to which the message RNG-ACK bitmap that indicates the status of decoding capabilities of the range in the frame indicated by the frame index, and at least one preamble code index of the selection range, successfully decoded the choice of the range
in this case, if the message RNG-ACK was received from the base station before the time runs out the timer, but at least one preamble code index for the range included in the message RNG-ACK does not match the first code of the preamble of the range transmitted by the mobile station, the procedure of the selection range is determined as unsuccessful, and
in this case, if before the expiration of the timer was adopted only information about assigning resources ascending line of communication without receiving the message RNG-ACK, the process of selecting a range is defined as successful.

2. JV�FDS according to claim 1, in which, if the message RNG-ACK was received from the base station before the expiry of the timer, the procedure for selecting a range is defined as successful only when the index of the frame indicates the first frame in the bitmap bit for the first opportunity is set to "1" and at least one index corresponds to the first code of the preamble of the range.

3. A method according to claim 1, wherein the T31 timer is a timer.

4. A method for performing band selection in the broadband wireless access system for base station, comprising stages:
detecting at least one preamble code of the range to select a range by decoding capabilities in the frame; and
on the basis of the detection result, the transmission of at least one of the following: a message RNG-ACK, information about resource assignment uplink for receiving the request message on selection of range (hereinafter, the request message RNG-REQ), at least one mobile station that has transmitted at least one detection code of the preamble to the range before the time runs out timer from the frame containing the range,
the reception request message RNG-REQ, and
send a message RNG-RSP on the range in response to the request message RNG-REQ,
in this case the message RNG-ACK contains the index ka�RA, pointing this shot, a bit map that indicates the status of decoding options range in this shot, and each index of at least one preamble code select the range, decoded from choice band,
in this case, if the message RNG-ACK was adopted first by the mobile station before the time runs out the timer, but each index, at least one code of the preamble of the range included in the message RNG-ACK does not match the first code of the preamble of the range, allocated to the first mobile station, the procedure of the selection range is determined as unsuccessful, and
in this case, if before the expiration of the timer, the first mobile station has been adopted only information about assigning resources ascending line of communication without receiving the message RNG-ACK, the procedure of selecting the range of the first mobile station is determined as successful.

5. A method according to claim 4, wherein the index of the frame contains at least one bit indicating supercar, including the frame, and at least one bit indicating that frame among frames in this supercute.

6. A method according to claim 4, wherein the T31 timer is a timer.

7. The mobile station to perform range selection in the broadband wireless access system, comprising:
processor; and
radio frequency (RF) module, configurer�bath, to transmit and receive radio signals to and from the outside under control of the processor
additionally, the processor transmits to the base station of the first preamble code of the range to select a range using the first choice of the range of the first frame, determines whether the procedure of selection of the successful range, based on at least one of the following: a timer, a confirmation message select a range (hereinafter, the message RNG-ACK), and information about how to assign resources uplink for transmission to a base station request message on selection of range (hereinafter, the request message RNG-REQ), in this case the message RNG-ACK includes the answer to the first code of the preamble of the range, the timer specifies the time limit to receive the message RNG-ACK, transmits the request message RNG-REQ, if the range selection is successful, and receives a response message on selection of range (RNG-RSP) in response to the request message RNG-REQ,
in this case the message RNG-ACK contains the index of the frame indicates the frame containing the range to which the message RNG-ACK bitmap that indicates the status of decoding capabilities of the range in the frame indicated by the frame index, and at least one preamble code index of the selection range, successfully decoded isosporosis select the range,
in this case, if the message RNG-ACK was received from the base station before the time runs out the timer, but at least one preamble code index for the range included in the message RNG-ACK does not match the first code of the preamble of the range, allocated to the first mobile station, the procedure of the selection range is determined as unsuccessful, and
in this case, if before the expiration of the timer was adopted only information about assigning resources ascending line of communication without receiving the message RNG-ACK, the procedure of selecting the range of the first mobile station is determined as successful.

8. The mobile station according to claim 7, in which, if the message RNG-ACK was received from the base station before the expiry of the timer, the procedure for selecting a range is defined as successful only when the index of the frame indicates the first frame in the bitmap bit for the first opportunity is set to "1" and at least one preamble code index of the range corresponds to the first code of the preamble of the range.

9. The mobile station of claim 7, in which the T31 timer is a timer.



 

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24 cl, 11 dwg

FIELD: physics; communications.

SUBSTANCE: description is given of a method and device for switching wireless terminal channels. For this, several communication channels with different physical characteristics are supported in the cell of the base station. Each wireless terminal controls several channels and evaluates several channels at the same time, such that, there can be fast switching between channels. Information on the quality of the channel is sent from each wireless terminal to the base station. The wireless terminal or base station selects the channel, based on the evaluated quality of the channel. By supporting several channels and through periodical changes in channels in different implementation alternatives, the time taken before the wireless terminal finds good or suitable channel conditions is minimised, even if the wireless terminal changes position. Several antennae are used at the base station for simultaneous support of several channels, for example, through control of the directional pattern of the antennae.

EFFECT: reduced delays before wireless terminal finds suitable channel conditions.

66 cl, 26 dwg

FIELD: physics; communications.

SUBSTANCE: during different set conditions providing source of sound for company service information as substitutive audio signal for call return, receiver can determine whether source of sound for service information for subscriber or set time interval is provided for. Present invention provides for a method and device for obtaining substitutive repeating audio signal for call return based on choice or successively in accordance with a preset condition.

EFFECT: provision for several substitutive audio signals for call return.

26 cl, 6 dwg

FIELD: physics; communications.

SUBSTANCE: method consists of the following stages: reception of request for channel access from user terminal. Reception of the user terminal can be one of several active user terminals. The transmission cycle duration is determined as a result of reception of a request for channel access. The arrival time of data to the cycle is determined for the user terminal. The arrival time of data to the user terminal is set, so as to designate the channel for the user terminal, starting from the time of arrival of data.

EFFECT: reduced probability of collisions during transfer of data from different users.

31 cl, 8 dwg

FIELD: information technologies.

SUBSTANCE: method for assignment of band channel with adaptive modulation and coding (AMC) to subscriber stations (SS) is realised in wireless communication system, which separates full range of frequencies into multiple subcarrier bands, every of which represents set from previously specified quantity of subranges, every of which represents set of previously specified quantity of adjacent subcarriers. Method comprises the following stages: necessity in use of band channel with AMC is detected; quality of reception is measured in frequency bands; list of frequency bands with high quality of reception is formed; request is sent for assignment of band channel with AMC as well as foresaid list to base station (BS); response is received to mentioned request from BS; in compliance with response, changeover is done in SS in condition of use of band channel with AMC.

EFFECT: creation of flexible system that provides possibility for subscriber stations with proper condition of channel to realise high-speed communication with high throughput.

61 cl, 7 dwg, 3 tbl

FIELD: information technologies.

SUBSTANCE: service center (SZ) for transmission of information content should not know or define number of person who initiates loading, and sole connection (TKV) of communication from communication device (TKG) to service center (SZ) does not require making another communication contact, at that information content is requested in the first communication session (SI1) with the first notice (SN1) about service from service center (SZ), and is delivered from service center (SZ) in the second communication session (SI2) with at least one notice (SN2) about service.

EFFECT: reduction of power inputs and use of hardware resources.

18 cl, 5 dwg

FIELD: information technologies.

SUBSTANCE: system comprises subsystem of all-channel signaling processing, data base subsystem, services processing subsystem and operational maintenance subsystem, at that all subsystems are connected to communication network and accordingly realise information exchange; at that all-channel signaling processing subsystem performs function of OKC-7 processing; data base subsystem is used for storage of user data; services processing subsystem comprises one or more modules for processing of home location register services; operational maintenance subsystem comprises operational maintenance server, services acceptance terminal and close-range terminal of operational maintenance.

EFFECT: provision of possibility to service user of several types of networks via system of home location register.

5 cl, 2 dwg

FIELD: information technologies.

SUBSTANCE: in one version of realisation access network may assign group identifier (group ID) to every of pilot-signals associated with sector, for instance, on the basis of pilot-signals coverage areas, and transmit pilot-signals with appropriate group ID. PN shift may be used as group ID. Access terminal may group accepted pilot-signals in one or more pilot-signals group according to their group ID, and select representative pilot-signals from every group of pilot-signals for transmission of message about pilot-signal level. Access terminal may also use grouping of pilot-signals for efficient control of sets.

EFFECT: provision of efficient and reliable communication systems with multiple carriers.

32 cl, 13 dwg

FIELD: information technologies.

SUBSTANCE: wireless communication network comprises different base stations and subscriber stations. Every base station provides services of broadcasting content transfer to subscriber stations via communication channels of one of the following types: 1) common channel used by multiple subscriber stations, 2) individual channels, every of which is separated for use by separate subscriber station. In response to one or several preset changes of condition, i.e. change of number of subscriber stations that request the program, change of transmission power level used by base station, or in case of other change of network condition, communication channel type used for provisioning of broadcasting content to one or several subscriber stations is switched over.

EFFECT: delivery of broadcasting content with use of errors and individual channels combination, depending on whatever is more preferable in available circumstances.

5 cl, 28 dwg

FIELD: information technologies.

SUBSTANCE: one version of realisation comprises base station, which controls channel of speed indicator, decodes speed indicator channel with application of likelihood maximum decoder and determines availability of packet in speed indicator channel by comparison of probability to threshold, and analyses frame validity in packet-oriented channel on the basis of availability and content of packets accepted in speed indicator channel.

EFFECT: possibility to identify packets in speed indicator channel, high probability of good and bad frames identification in speed indicator channel and corresponding nonperiodical data transfer channel.

43 cl, 5 dwg

FIELD: information technologies.

SUBSTANCE: method and device are provided for provisioning of one or more communication services of point-point set type, such as multimedia service of broadcasting/multicasting (MBMS), to one or more mobile terminals, or subscriber devices (AA). When one or more mobile terminals are moved to new zone of mobile communication system controlled by other network component, after connection to service, information is transmitted between network elements by method.

EFFECT: facilitation of continuous service reception by mobile terminals that moved, preserving network resources and increasing efficiency of mobile communication system.

95 cl, 10 dwg

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