Method and device for drawing ie maps using reduced cid in broadband ofdma systems

FIELD: physics; communications.

SUBSTANCE: present invention pertains to access systems with multiplexing with orthogonal frequency division of signals and particularly, to the method of separating data packets for a mobile subscriber station (MSS). This is provided for through transmission of information on separation of packets by the base station in the wireless broadband communication system, in which the transmitted frame consists of symbols, and orthogonal sub-carriers at the frequency axis combine each of the symbols based on the given time unit. The reduced connection identifier is generated through reduction of the basic CID of the mobile terminal, connected to the base station, if the main CID exists in the given range. A MAP, comprising enabled field, in form of reduced CID and either used, or unused reduced CID, is inserted into a frame, and the frame is transmitted to the mobile terminal.

EFFECT: provision for control of reduction of connection identifier (CID) of terminal, connected to base station through provision for system information, indicating whether CID in the wireless broadband communication system has been reduced to frame.

22 cl, 12 dwg

 

The technical field to which the invention relates

The present invention relates to systems access multiplexing orthogonal frequency division signals, in particular to a method of allocating a packet data for the mobile subscriber station (MSS).

The level of technology

Traditional mobile networks were designed to provide services based on the voice, namely: voice communication. Mobile networks have disadvantages, namely, that the bandwidth for data transmission is relatively narrow, since the transmission of voice data does not require a large bandwidth, and service charges are high. However, with increasing demands for wireless services, including access to the Internet and multimedia content, conventional mobile communication network ceased to satisfy the requirements of users.

Group standardization Institute of electrical and electronics engineers IEEE 802.16e lobbies adaptation for IEEE 802.16d as the standard for providing broadband wireless Internet access for fixed stations subscribers.

Compared with traditional wireless technologies IEEE 802.16d allows you to transfer data to the mass memory for a short time by providing a wide bandwidth of IP data through the effective use of channels with the channel separation between all users. However, in the IEEE 802.16d all users connected to base station, share and use a common channel. Further, as the interval of the channel for each user is allocated by the base station, the base station must inform each user on a MAP representing the information concerning the allocation, so that every user can share and use each channel frame. In the IEEE 802.16d MAP is divided into UL_MAP and DL_MAP contained in the front part of each frame, and then transmitted to each user.

Figure 1 presents a diagram showing the frame structure for downlink and for uplink communication in the IEEE 802.16d, in accordance with the prior art. In figure 1 the vertical axis represents multiple rooms 147 subchannels, and the horizontal axis represents non 145 OFDMA symbols.

First will be described a descending line 149 connection. Preamble 111 is located at the front of the subchannel forming a descending line. Information about the broadcast data, such as header control frame (FCH) 113, DL_MAP 115 and UL_MAP 117 located in the preamble 111. Further there are DL packets 121, 123, 125, 127 and 129, the following information about the broadcast data.

Then, in the ascending line 153 due to being the t preamble 131, 133 and 135 in the front part of the UL packets 137, 139 and 141, respectively, with ordered subchannel 143.

DL_MAP 115 and UL_MAP 117 contain information relating to the positions and the allocation of DL packets 121, 123, 125, 127 and 129 and UL packets 137, 139 and 141. Information is transmitted from the base station to the MSS. Then, MSS variable receives the sub-channel with the combined frequency and symbol for each frame, using information about the position and the allocation for the UL packets 137, 139 and 141, and DL packages 121, 123, 125, 127 and 129 contained in the DL_MAP 115 and UL_MAP 117. The sub-channel used in each frame is not constant, but is variable.

Each information element MAP (MAP_IE) is a MAP for a single terminal. Each terminal checks whether a basic connection identifier (basic CID)contained in MAP_IE, the basic CID for the terminal, and transmits/receives packets through the sub-channel on the frequency and the character represented in the corresponding MAP_IE.

As described above, in the existing broadband OFDMA system according to the IEEE 802.16 standard, the base station allocates the sub-channel to the mobile terminal, which will be used for packet transmission in each terminal in the corresponding frame using the broadcast information about the data, such as DL_MAP and UL_MAP.

However, the base station shall transmit information on the allocation of packets to each terminal. The information about the separation of the AI in accordance with the transfer creates a large overhead in the system. In particular, when the number of terminals connected with the base station, information on the allocation of packets degrades system performance, as the selection information packet uses more resources in the shared (shared) channel.

The INVENTION

Accordingly, the present invention was made to solve the above-mentioned problems occurring in the prior art, and the present invention is to provide a method of constructing information on the allocation of packets to reduce overhead costs.

Another objective of the present invention is to provide a method for reducing overhead in the system by reducing the connection identifier (CID)used for transmission of information on the allocation of packets in a broadband wireless communication system.

Another object of the present invention is to provide a way to manage a reduced connection identifier (CID) of the terminal connected to the base station, by inserting system information, reflecting reduced to the frame CID in a broadband wireless communication system.

Another objective of the present invention is to provide a way to manage a reduced connection identifier (CID) of the terminal, which can change then the advice is for the terminal, attached to the base station, to determine the use or non-use of reduced CID, in a broadband wireless communication system.

In accordance with one aspect of the present invention, a method for reducing the size information on the allocation of packets to the base station in a broadband wireless communication system in which the transmitted frame contains characters that are orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, the method includes the steps are: determine the types of the reduced (reduced) CID, when the basic CID of the mobile terminal connected with the base station exists within a specified range, in order to reduce the size information on the allocation of packets; and transmit the configuration information, which includes the resolved field representing use or non-use of the reduced CID, in the mobile terminal.

In accordance with another aspect of the present invention, a method of constructing information on selecting packages base station in a broadband wireless communication system in which the transmitted frame contains characters that are orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, the method includes the steps, what and where: sets the resolved field, representing use or non-use of the reduced connection identifier (CID) and the type of the reduced CID, in the configuration information when the basic CID of the mobile terminal connected with the base station exists within a specified range; and establish reduced CID information on selecting packages, in order to reduce the size information on selecting packages.

In accordance with another aspect of the present invention proposed a base station in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, containing the controller to determine whether there is a basic connection identifier (CID) of the terminal within the specified range, at the base station, and installation of the permitted field, which sets the types of the reduced CID and the use or non-use of the reduced CID, in the configuration information; a setting unit of the preamble to perform a system synchronization between the base station and the terminal; block traffic for traffic transferred from the top side; and a transmitter for transmitting a frame obtained by multiplexing information on selecting packages, including configuration information, p is emboli and traffic in the terminal.

In accordance with another aspect of the present invention, a mobile terminal in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, containing a receiver for receiving a frame and perform a system synchronization between the base station and the mobile terminal; a detector information on the allocation of packets to detect information on the allocation of packets from a frame and transmitting information on the allocation of packets to the controller; the controller to verify the permitted field, which represents the types of the reduced connection identifier (CID) and the use or non-use of the reduced CID from information on selecting packages, and installation to apply or not reduced CID based on approved field; and a traffic controller for receiving the frame from the successor and decode the frame using the information on the allocation of packets transmitted from the controller.

BRIEF DESCRIPTION of DRAWINGS

These and other objectives, features and advantages of the present invention will be clearer from the following detailed description, taken together with the accompanying drawings, in which:

figure 1 - diagram showing the structure of ashtama lines of communication and downlink in a broadband OFDMA system in accordance with the prior art;

figure 2 is a diagram showing the structure of the uplink communication and downlink in a broadband OFDMA system in accordance with the embodiment of the present invention;

figa is a diagram showing the construction of UP-MAP_IE in a broadband OFDMA system in accordance with the prior art;

FIGU is a diagram showing the construction of DL-MAP_IE in a broadband OFDMA system in accordance with the prior art;

4 is a chart illustrating the CID allocation method in a broadband OFDMA system in accordance with the prior art;

5 is a flowchart illustrating a method of generating MAP_IE in the base station, using the reduced CID in accordance with the first embodiment of the present invention;

6 is a flowchart illustrating a method for compressing the CID to move from basic CID to reducyrovannom CID in the base station, using the reduced CID in accordance with the first embodiment of the present invention;

7 is a flowchart illustrating a method of generating MAP_IE in the base station, selectively uses many CID in accordance with the second embodiment of the present invention;

Fig is a block diagram illustrating the construction of a base station in accordance with embodiment n the present invention;

Fig.9 is a block diagram illustrating a method of transmitting information on the allocation of packets to the base station in accordance with the embodiment of the present invention;

figure 10 is a block diagram showing the construction of the mobile terminal in accordance with the embodiment of the present invention; and

11 is a flowchart illustrating a method of receiving mobile terminal information on the allocation of packets from the base station.

DETAILED DESCRIPTION the PREFERRED OPTION of carrying out the INVENTION

Next will be described the preferred embodiments of the present invention with reference to the accompanying drawings. The same reference numbers are used to designate the same elements as shown on the drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may obscure the essence of the present invention.

The present invention provides a method of reducing CID used to transmit information on selecting packages. Further, the present invention provides a method of controlling the reduction CID terminal connected to the base station, using the insertion system information, which is reduced if CID in the frame.

In the following description of the mark is nonexistent, that only the parts necessary for understanding the operation of the present invention will be described, and description of the remaining parts other than these parts will be omitted within the entity of the present invention.

Further, the frame structure for uplink communication and downlink will be described with reference to figure 2 in accordance with the embodiment of the present invention.

In figure 2, the vertical axis represents a set of subchannels and the horizontal axis represents OFDMA symbols.

The preamble 210 is located at the front of the subchannel forming a descending line 200 communication. Then, the system information channel (SICH) 220 is transmitted to all terminals in a cell, and a mini-MAP 230, which contains the DL MAP element 231 and UL MAP element 232 that are after the preamble 210 in sequence. Then, DL packets 240-244 characters are after a mini-MAP 230.

SICH 220 contains the root MAP 221, containing information about the physical size of the mini-MAP. Root MAP 221 contains the permitted field of the reduced CID as a permitted field indicating whether the reduced CID.

Permitted field of the reduced CID preferably contains one bit, and it is allowed, when the number of mobile terminals connected with the base station, is less than the specified threshold value. As al is ernative can be used two or more threshold values. It is also possible designation information displayed on the value of the size of the reduced CID, using the notation of many bits as permitted field instead of permitted fields of the reduced CID. For example, when the CID type field includes two bits and set to "00", CID type field is displayed on the CID in 10 bits. When the CID type field set to "01", CID type field is displayed on the CID of twelve bits. When the CID type field set to "10", CID type field is displayed on the CID in fourteen bits. When the CID type field set to "11", CID type field is displayed on the CID in sixteen bits.

As a further alternative information, such as the resolution of the reduced CID or type CID, can be inserted into the first MAP_IE transmitted every frame, instead of ON. In this case, the terminal receives the first MAP_IE and determines the type of CID, which will be used with reference to MAP_IE corresponding to the terminal.

Root MAP 221 preferably includes three fields, namely: RmNsch0 box 222, RmNsch1 field 223 and RmNsch2 field 224. Fields have a size six, five and five bits, respectively. RmNsch0 box 222, RmNsch1 field 223 and RmNsch2 field 224 shows the physical dimensions of the mini-MAP0 230, mini-MAP1 231 and mini-MAP2 232, for which complete modulation and demodulation.

Here, the scheme demodulation and decoding to be used for demodulation and decoding of each mini-MAP, defined as 1/12 QPSK, 1/2 QPSK and 1/ 16 QAM, respectively. Mini MAP0 230 uses QPSK 1/12, which is the smallest scheme demodulation and decoding, and mini-MAP2 232 uses the larger scheme demodulation and decoding. Terminals connected to the base station can demodulate and decode the mini-MAP0 230. Terminals near the base station can demodulate and decode the mini-MAP2 232.

Mini MAP0 230 contains many MAP_IE 233 and 234, mini-MAP1 231 contains many MAP_IE 235, 236 and 237, Mini-MAP2 230 contains many MAP_IE 238 and 239. Each MAP_IE is UL-MAP_IE 234, 236, 237 or 239 for each terminal or DL-MAP_IE 233, 235 or 238 for each terminal. Then each MAP_IE is a MAP for the UL package and DL package corresponding to each MAP_IE.

The present invention provides a method of reducing CID forming MAP_IE contained in the mini-MAP. First will be described the construction MAP_IE prior art with reference to figue and VW.

On figa presents a diagram showing the construction UL-MAP_IE prior art.

With reference to figa, UL-MAP_IE defines a two-dimensional information of the allocation of bandwidth for UL packets, and she ordered in a time sequence. Here, the CID can be allocated to the appropriate UL-MAP_IE as unicast ID, group ID or broadcast ID. In accordance with the present embodiment is about invention, reduced CID is used when CID is unicast ID.

Code use interval for uplink communication (UIUC) is an indicator for differences in the physical parameter for the selected UL package. When UIUC has the value 15, then presents an extended UIUC dependent IE. On the contrary, when UIUC is not equal to 15, then presents the offset. The offset is the offset of the OFDMA symbol, related to the beginning of the corresponding package, and has units in one slot. Moreover, the offset is relative to the start time of the allocation UL-MAP messages.

On FIGU presents a diagram showing the construction of DL-MAP_IE.

With reference to figw, DL-MAP_IE defines a two-dimensional information of the allocation of bandwidth for DL packages. UIUC is an indicator for the physical parameter to highlight the DL package. StartPS indicates the start position of the packet in the corresponding frame. CID is presented when the corresponding service is used, and the CID allocated to the corresponding DL-MAP_IE as unicast ID, group ID or broadcast ID. In accordance with the embodiment of the present invention, a reduced CID is used when CID is unicast.

Then, the CID allocation method shown in figa and 3B will be described with reference to figure 4. In figure 4 the basic CID is the CID allocated to each term of the u; can be allocated CID from 0x0001 tom. The terminal receives one of the basic CID from the base station, when connected to the network and the base station allocates the packet data to the terminal using the basic CID, when you select MAP_IE.

Here, the resolved field of one bit is used FOR, the present invention limits this distributable value of the specified value (for example, 2^10). Further, when the number of terminals connected with the base station, is less than the preset value, the base station will allocate MAP_IE terminal using the reduced CID instead of the basic CID. Accordingly, the basic CID, as described above, is determined in accordance with the range of significant bits of bits {from the lower significant bit (LSB) to the high order bit (MSB)} basic CID. For example, reduced CID may have a size of 10 bits from the LSB of basic CID). Preferably, reduced CID was not more than 16 bits.

However, when the field type of the reduced CID uses a lot of bits, the base station selects the size of the reduced CID using the display to the value denoted by the type field of the reduced CID.

The resolution of the reduced CID and type CID preferably inserted into the first MAP_IE passed each instead of SICH.

Next will be described a method of reducing CID in accordance with the preferred option performed the I of the present invention, with reference to figure 5-7.

Figure 5 presents a block diagram illustrating a first variant implementation, using the reduced CID, a limited one, and figure 6 presents a block diagram illustrating a second variant implementation, including multiple use of CID.

Figure 5 presents a flowchart illustrating the method of generating the base station MAP_IE, in accordance with the value set in the enabled field of the reduced CID, in accordance with the first embodiment of the present invention.

With reference to figure 5, the base station determines, less if the number of terminals connected to the base station than the specified threshold value (2^10), at step 500. When the number of terminals is smaller than the threshold value, the base station sets the resolved field of the reduced CID in SICH for transmitted frame 1 at step 510.

At step 520, the base station generates MAP_IE with 10 bit reduced CID instead of the basic CID in the transmission of the corresponding frame.

When the number of terminals connected with the base station that is greater than the threshold value (2^10), the base station sets the resolved field of the reduced CID to 0 at step 530 and generates MAP_IE with the existing basic CID, when generates information about the selection of packets for each terminal at step 540.

This procedure applies to the usage of the reduced CID, when the number of terminals connected with the base station is reduced below a constant level (for example, 2^10 - delta, delta - positive number), and where the base station generates MAP_IE with the existing basic CID, when the number of terminals connected with the base station, more than a certain number (2^10). Here, delta is the lower value to prevent compression CID too often, when the number of terminals varies around a certain value (2^10). Delta is determined by consideration of specified variables, such as the communication environment of the operator.

With reference to Fig.6, the base station determines, less if the number of attached at the moment of terminals than the specified number at step 600. When the number of attached at the moment the terminal is less than the specified level, the base station extracts the terminal with basic CID, the pain is s, than a certain value (2^10) in step 610. The base station re-selects the basic CID, smaller than a certain value (2^10), for the extracted terminal at step 620. Then, the base station sets the resolved field of the reduced CID in FOR 1 at step 630. In this case, the base station uses the reduced CID for LSB in 10 bits in the basic CID (16 bits) instead of the basic CID when generating MAP_IE of the next frame.

7 shows a block diagram illustrating the method of installation MAP_IE at the base station, by using lots CID, in accordance with the second embodiment of the present invention.

With reference to Fig.7. the base station measures the number of terminals connected with the base station, at step 710. Then, the base station selects a CID corresponding to the number of terminals at step 720. The base station selects a threshold value that is nearest to the number of terminals from the set of threshold values. For example, when the threshold value is equal to 2^10, 2^12, 2^14 or 2^16 and the number of terminals connected with the base station, is equal to 2^13, the base station selects 2^14 as the threshold value.

Then, the base station determines the type of CID, the corresponding threshold value. For example, when the threshold value is 2^10, type, CID is defined in 10 bits. When the threshold value is 2^12, type CID opredelaetsa is 12 bits. When the threshold value is 2^14, type, CID is defined in 14 bits. When the threshold value is 2^16, type CID is defined in 16 bits.

At step 730, the base station displays the CID type field in 00, 01, 10 or 11, in accordance with a particular type of CID, as described above. Here, the base station may insert type CID in SICH or mini-MAP at step 740, in accordance with the implementation described above.

At step 740, the base station generates a mini-MAP using the CID corresponding to a particular type of CID.

Now will be described the device of the base station in accordance with the embodiment of the present invention.

On Fig presents a block diagram showing the base station device 800, in accordance with the present invention. With reference to Fig the controller 801 determines whether there is a basic CID of the terminal within the specified range. If so, the controller 801 generates the resolved field that indicates whether the reduced CID in MAP_IE. Resolved field may also be permitted field of the reduced CID and CID type field with lots of bits and lots of reference values.

The controller 801 generates the reduced CID in accordance with the permitted field. For example, when the resolved field is a field of type CID 2-bit field type CID can have four values, namely 00, 01, 10 and 11. Sdes is a basic CID. Further, when the CID type field is equal to 01, 10 or 11, the controller 801 performs display using the specified type, the reduced CID. Then, the controller 801 sets the reduced CID in the MAP.

Generator 803 preamble system performs synchronization with the generation of the frame and generates the preamble to determine the cell terminal. The preamble can also be used for channel estimation, when the terminal performs data recovery; preamble uses many of the templates.

Block 805 traffic keeps the traffic that passes the upper side, such as a base station controller, in the internal buffer.

The transmitter 807 OFDM multiplexes MAP generated by the controller 801, the preamble and traffic information, and generates a frame to be transmitted to the terminal. As a device for multiplexing and fast inverse Fourier transform at the transmitter 807 OFDM is not in the scope of the invention, the discussion of this device will be omitted.

Next will be described a method for transferring information on the allocation of packets to the base station 800, with reference to Fig.9.

With reference to figure 9, at step 900, the controller 801 of the base station 800 measures the range of the basic CID to the mobile terminal. At step 910, the controller 801 determines whether the basic CID of the mobile terminal is connected to the base stations is th, within the specified range. If so, the controller 801 generates the resolved field to indicate the use or disuse of the reduced CID, the type of the reduced CID and reduced CID in accordance with the permitted field, and stores the generated permitted field and reduced CID in the MAP, at step 920. At step 940, the transmitter 807 OFDM multiplexes MAP, the preamble and traffic information, and generates the frame. At step 950 transmitter 807 OFDM transmits the generated frame to the mobile terminal.

When the basic CID of the mobile terminal is not within the specified range (step 910), the controller 801 sets the basic CID in the MAP at step 910. After that, the transmitter 807 OFDM multiplexes MAP, the preamble and traffic information, and generates the frame at step 940.

Next will be described the device of the mobile terminal with reference to figure 10.

With reference to figure 10, the receiver 1010 mobile terminal 1000 receives a frame from the base station 800. The receiver 1010 detects a preamble of a received frame and performs system synchronization.

The detector MAP 1020 receives a frame and detects in it the MAP. Then the detector MAP 1020 transmits detektirovanii MAP controller 1040.

The controller 1040 checks allowed the field to determine whether the presence of reduced CID, from the MAP. When using reduced CID, after checking the enabled field, a counter is ller 1040 detects traffic data reception using the reduced CID. When reduced CID is not used, the controller 1040 detects traffic data reception using traditional basic CID. When the resolved field is a field of type CID, containing many bits, the controller 1040 sets the use or non-use of the reduced CID and the type of the reduced CID.

The processor 1030 of the traffic contains a buffer that stores data traffic sent from the receiver 1010, and decodes the data traffic using the MAP transmitted from the controller 1040.

Next will be described a method of receiving information about selection of packets from the base station 800 in the mobile terminal 1000 with reference to 11.

With reference to 11, first, the mobile terminal 1000 receives a frame transmitted from the base station 800 through the receiver 1010, at step 1110. The receiver 1010 system performs synchronization between the base station 800 and the mobile terminal 1000, using a preamble of the received frame. The receiver 1010, performing system synchronization, transmits the frame to the detector 1020 MAP. At step 1120 detector 1020 MAP, having received the frame, detects MAP of the frame and passes detektirovanii MAP controller 1040. At step 1130, the controller 1040 checks allowed field in the MAP and checks whether you have used reduced CID.

When using reduced CID, at step 1140. At step 1140, the controller 1040 applies the reduced CID Osnovianenko field. When the CID type field is used as the permitted field, the controller 1040 may determine the use or non-use of the reduced CID and the type of the reduced CID. At step 1160, the controller 1040 extracts information packets using a MAP, including traffic data, stored in the processor 1030 of traffic.

At step 1130, when reduced CID is not used, at step 1150. At step 1150, the controller 1040 applies and uses the basic CID. At step 1160, the controller 1040 extracts information packets using a MAP, including the received traffic data.

In accordance with the present invention, as it was described above, in the transmission of information on the allocation of broadband packages in ODFMA system according to IEEE 802.16 standard, system overhead can be reduced when transferring MAP_IE for highlight packages using the reduced CID obtained by the reduction of the basic CID of the corresponding terminal.

Although the preferred implementation of the present invention has been described with illustrative purposes, the specialist in the art should understand that various modifications, additions and substitutions, without going beyond the scope and essence of the present invention defined by the following formula.

1. How to reduce the size information on the allocation of packets to the base station in sirokopolosnie a wireless communication system, in which the transmitted frame contains characters that are orthogonal subcarriers on the frequency axis are each of the symbols based on a specified unit of time, namely, that

determine the type of the reduced connection identifier (CID), when the basic CID of the mobile terminal connected with the base station exists in a given range in order to reduce the size information on the allocation of packets; and

transmit configuration information, which includes the resolved field representing use or non-use of the reduced CID, in the mobile terminal.

2. The method according to claim 1, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

3. The method according to claim 2, in which the reduced CID includes at least one bit of the lower significant bits (LSB) of the basic CID.

4. The method according to claim 1, wherein the configuration information is located in the starting part of the information on selecting packages.

5. Method of constructing information on selecting packages base station in a broadband wireless communication system in which the transmitted frame contains characters that are orthogonal subcarriers on the frequency axis are each of the symbols based on a specified uniform is subjected to time namely, that

set the enabled field, representing use or non-use of the reduced connection identifier (CID) and the type of the reduced CID, in the configuration information when the basic CID of the mobile terminal connected with the base station exists within a specified range; and

set the reduced CID information on selecting packages, in order to reduce the size information on selecting packages.

6. The method according to claim 5, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

7. The method according to claim 5, in which the reduced CID includes at least one bit of the lower significant bits (LSB) of the basic CID.

8. Broadband wireless communication system in which the transmitted frame contains characters that are orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, containing

base station for transmitting configuration information to the mobile terminal, when a basic connection identifier (CID) of the mobile terminal which transmitted the information about the packages that exist in a given range, and the configuration information contains information of razresheniya to set the type of the reduced connection identifier (CID) and the use or disuse of the reduced CID; and

the mobile terminal to verify the permitted field of the reduced CID in the configuration information transmitted from the base station, and the application of the reduced CID based on approved field.

9. The system of claim 8, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

10. The system of claim 8, in which the reduced CID includes at least one bit of the lower significant bits (LSB) of the basic CID.

11. A base station in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a specified unit of time

moreover, the base station transmits configuration information to the mobile terminal, when a basic connection identifier (CID) of the mobile terminal which transmitted the information about the packages that exist in the specified range, when this configuration information contains information allowed the field to set the type of the reduced connection identifier (CID) and the use or disuse of the reduced CID.

12. The base station according to claim 11, in which the resolved field contains at least two bits representing usage is tion or non-use of the reduced CID and the type of the reduced CID.

13. The base station according to claim 11, in which the reduced CID includes at least one bit of the lower significant bits (LSB) of the basic CID.

14. The mobile terminal in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, and the mobile terminal to verify the permitted fields representing use or non-use of the reduced connection identifier (CID) in the configuration information transmitted from the base station applies the reduced CID based on approved field.

15. The mobile terminal 14, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

16. The mobile terminal 14, in which the reduced CID includes at least one bit of the lower significant bits (LSB) of the basic CID.

17. A base station in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, containing

a controller for determining whether there is the base ID of a connection is possible (CID) of the terminal in a predetermined range, at the base station, and installation of the permitted field, which sets the types of the reduced CID and the use or non-use of the reduced CID, in the configuration information; and

a transmitter for transmitting a frame obtained by multiplexing information on selecting packages, including configuration information, a preamble and traffic in the terminal.

18. The base station 17, further comprising

the setting unit of the preamble to perform a system synchronization between the base station and the terminal; and

block traffic to receive traffic sent to and from the top side.

19. The base station 17, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

20. The mobile terminal in a broadband wireless communication system in which the transmitted frames contain symbols, orthogonal subcarriers on the frequency axis are each of the symbols based on a predetermined time unit, containing the detector information on the allocation of packets to detect information on the allocation of packets from a frame and transmitting information on the allocation of packets to the controller; and

a controller for checking enabled field, which represents the types of the reduced Eden is idicator connection (CID) and the use or non-use of the reduced CID, from the information on the allocation of packages, and installation, to apply or not reduced CID based on approved field.

21. The mobile terminal according to claim 20, in which the resolved field contains at least two bits representing use or non-use of the reduced CID and the type of the reduced CID.

22. The mobile terminal according to claim 20, further containing a receiver for receiving a frame and perform a system synchronization between the base station and the mobile terminal; and

the traffic processor for receiving the frame from the successor and decode the frame using the information on the allocation of packets transmitted from the controller.



 

Same patents:

FIELD: physics; communications.

SUBSTANCE: during transmission of data packets in mobile communication system with hybrid automatic repeat request for packet transmission (HARQ), second transceiver receives from first transceiver, conditional assignment (RG) as information for controlling speed. The second transceiver sets the permissible maximum speed of data transfer in the HARQ process, to which RG is applied, in the permissible maximum speed of data transfer in the HARQ process, preceding the given HARQ process, if RG indicates storage. The second transceiver transmits data packets to the first transceiver within the limits of the set permissible maximum speed of data transfer.

EFFECT: reduced service signalling information of downlink, which is result of provision for dispatching in dispatcher base station controlled by unit (unit B).

36 cl, 8 dwg, 3 tbl

FIELD: physics, radio.

SUBSTANCE: different cells share object of the report of the second level for use of identical values of parametre of the channel and identical values of parametre of the report, thereby reducing a delay arising from restoration of an unidirectional radio channel in case of transmission of service, minimising losses of data during service transmission, saving up network resources and refining reception performances at portable station (UE) by means of the soft integrating. The method includes stages on which accept in UE the first value of parametre and the first index of parametre; erect the channel, using the first value of parametre and the first index of value of parametre, and data MBMS accept; accept on UE the second index of value of parametre; also support the erected channel if the first index of value of parametre is identical to the second index of value of parametre. If the mentioned first and second indexes of value of parametre are various, the channel recover, using the accepted second value of parametre.

EFFECT: sharing of object of radio report for services of multimedia broadcasting/multiannouncement MBMS.

40 cl, 7 dwg

FIELD: physics, communication.

SUBSTANCE: to minimise losses of data when the portable terminal reads out a control path of multimedia broadcasting/multiple-address service "MCCH" in reception of data of multimedia broadcasting/multiple-address service "MBMS", the conferring of indication on reception of the driving information of multimedia broadcasting/multiple-address service is transmitted to the portable terminal "MBMS", containing the information of attribute of the driving information for service of multimedia broadcasting/multiple-address service "MBMS". Then the portable terminal samplingly reads out a control path of multimedia broadcasting/multiple-address service "MCCH" to accept the driving information, according to the information of attribute containing in the conferring of indication.

EFFECT: minimisation of number of cycles of reading of logic channel "MCCH" by portable terminal.

43 cl, 4 dwg

FIELD: physics, communication.

SUBSTANCE: this purpose the method includes stages of division of the given continuance of time on, at least, two subperiods of time and formation of the frequency resource by means of application of crossly various coefficients of a reuse of frequency by it subperiods of time.

EFFECT: maintenance of allocation of frequency resource in cellular communication.

15 cl, 18 dwg, 3 tbl

FIELD: physics, communication.

SUBSTANCE: base station packs and transmits the conferring with the information on the next base stations, a containing special field of a flag for restriction of the information on the next base stations, and the reserved field, and also this conferring does not join the iterated information on the next base stations depending on the value set in a special field of the flag, thus, raising efficiency of transmission. The portable terminal accepts from base station the conferring with the information on the next base stations, checks the accepted conferring and then updates the identifier of the functional according to the value set in a special floor of a flag.

EFFECT: pinch of efficiency of transmission at loading decrease on the alarm system.

8 cl, 2 dwg, 4 tbl

FIELD: physics, communication.

SUBSTANCE: invention gives technologies for reaction to overlapping requirements in networks of a wireless communication which includes a transmit-receive of data from a sending device through a wireless communication network, these data transmission correspond to linking with a sending device and occur within the reserved part of a resource of communication, the requirement of cross noises which includes allocation of a resource of communication for the next device which is overlapped with the reserved part, on the basis of this detection is found out, in an expedient the notice on a sending device goes, the notice specifies presence of overlapped transmissions in the reserved part of a resource of communication.

EFFECT: decrease in cross noises of transmissions in wireless communication networks.

43 cl, 8 dwg

FIELD: communications.

SUBSTANCE: through conversion to specific information, contained in a channel, user equipment (UE) establishes a point-to-point connection with a base transceiver station (BTS) without interrupting reception of multimedia broadcast batch service (MBMS), which is the engineering solution.

EFFECT: new channel for controlling direct exchange line.

16 cl, 3 dwg

FIELD: communications systems.

SUBSTANCE: proposal is given of a method and device for generating a physical layer packet (PL) with variable length. Many security level packets (SL) can be multiplexed to a single PL-packet, so as to increase efficiency. SL-packets can vary their lengths. In one version, SL-packets of a different format for different users are joined in capsules, which a PL-packet. The shortest packets are meant for users with bad channel conditions or requiring less data, determined by use and associated requirements for quality of service (QoS). In one of the versions for modifying the header structure there are single-address and multiple user packets. An alternative version provides for modified sets of speeds, a mechanism for identification of an acknowledgment indicator ("АСК") from a single user packet or a multiplexed packet (delayed "АСК"). Amplitude manipulation for an "АСК"-channel is in contrast to bipolar manipulation, used in IS-856, and/or multivalent interpretation DRC.

EFFECT: increased efficiency through varying packet length.

21 cl, 19 dwg

FIELD: wireless communication.

SUBSTANCE: present invention pertains to a method of carrying out fast handover by a subscriber station (SS) in a broadband wireless communications system, consisting of a base station (BS), exchanging data with a SS, and at least one BS, neighboring a service BS. The SS receives downlink signals from the service BS and neighboring BS, measures the arrival time difference of the downlink signal, received from the service BS, and the downlink signal received from the neighboring BS, and sends the measured time difference to the service BS.

EFFECT: effective range control in a wireless broadband communications system.

53 cl, 11 dwg, 4 tbl

FIELD: communications systems.

SUBSTANCE: proposal is given of a method of compressing control information for an up-link in a wireless communication system, where a mobile user station scans neighboring base stations upon request by a service base station and sends information on the neighboring base stations to the service base station. In this method, the service base station sends a message with notice of neighboring base stations, which includes an identifier, of at least one neighboring base station, about which the service station intends to obtain information and an identifier of the above mentioned neighboring base station. The mobile user station then scans the channel, transmitted by at least one neighboring base station, and sends the scanning result together with the index of that neighboring base station to the service base station.

EFFECT: reduced unproductive expenses.

13 cl, 4 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for single-ended radio communications between mobile objects whose routes have common initial center involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mentioned mobile objects and destroyed upon completion of radio communications. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning of several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

1 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer from mobile object to stationary one residing at initial center of common mobile-object route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mobile object. Proposed radio communication system is characterized in reduced space requirement which enhanced its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 6 dwg

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile object from stationary one residing at initial center of mobile-object route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile object, these intermediate transceiving drop stations being produced in advance on mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 6 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method for single-ended radio communications between mobile objects whose routes have common initial center involves use of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from mobile objects. Proposed radio communication system is characterized in reduced space requirement and, consequently, in enhanced effectiveness when operating simultaneously with several other radio communication systems.

EFFECT: reduced mass and size, enhanced noise immunity and electromagnetic safety for attending personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in simultaneous functioning of several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object, these intermediate transceiving drop stations being produced in advance on first mobile object. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several other radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method for single-ended radio communications between mobile objects having common initial center involves use of low-power intermediate transceiver stations equipped with non-directional antennas and dropped from mobile objects. Proposed radio communication system is characterized in reduced space requirement and, consequently, in enhanced effectiveness when operating simultaneously with several other radio communication systems.

EFFECT: reduced mass and size, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

SUBSTANCE: proposed method intended for data transfer to mobile objects from stationary one residing at initial center of common mobile-objects route using electronic means disposed on stationary and mobile objects involves radio communications with aid of low-power intermediate transceiving stations equipped with non-directional antennas and dropped from first mobile object, these intermediate transceiving drop stations being produced in advance on first mobile object and destroyed upon completion of radio communications between mobile and stationary objects. Proposed radio communication system is characterized in reduced space requirement which enhances its effectiveness in joint functioning with several radio communication systems.

EFFECT: reduced mass and size of transceiver stations, enhanced noise immunity and electromagnetic safety of personnel.

2 cl, 7 dwg, 1 tbl

FIELD: radio communications engineering; digital communications in computer-aided ground-to-air data exchange systems.

SUBSTANCE: proposed system designed to transfer information about all received messages irrespective of their priority from mobile objects to information user has newly introduced message processing unit, group of m modems, (m + 1) and (m + 2) modems, address switching unit, reception disabling unit whose input functions as high-frequency input of station and output is connected to receiver input; control input of reception disabling unit is connected to output of TRANSMIT signal shaping unit; first input/output of message processing unit is connected through series-connected (m + 2) and (m + 1) modems and address switching unit to output of control unit; output of address switching unit is connected to input of transmission signal storage unit; t outputs of message processing unit function through t respective modems as low-frequency outputs of station; initialization of priority setting and control units, message processing unit clock generator, and system loading counter is effected by transferring CLEAR signal to respective inputs.

EFFECT: enhanced efficiency due to enhanced throughput capacity of system.

1 cl, 2 dwg

FIELD: radiophone groups servicing distant subscribers.

SUBSTANCE: proposed radiophone system has base station, plurality of distant subscriber stations, group of modems, each affording direct digital synthesizing of any frequency identifying frequency channel within serial time spaces, and cluster controller incorporating means for synchronizing modems with base station and used to submit any of modems to support communications between subscriber stations and base station during sequential time intervals.

EFFECT: enhanced quality of voice information.

12 cl, 11 dwg

Up!