The device and method of power control for control of the shared channel feedback communication line in the communication system mdcr

 

The invention relates to a communication system, multiple access, code-division multiplexing (mdcr). The transmission device on the common channel power control for base stations in the communication system mdcr contains the controller time intervals, the selector for multiplexing the accepted command of the power control in accordance with the signal. inserted in a temporary position, an orthogonal modulator for orthogonally modulating the output signal of the selector by multiplying the output signal of the selector on the orthogonal code for the shared control channel power and extend the modulator for the extension of the output signal of the orthogonal modulator expanding sequence and transmitting the enhanced signal. Technical result achieved - creating device and method of transmission to subscribers of commands power control for shared channels return line communication using the common channel power control in a communication system mdcr. 16 C. and 44 C.p. f-crystals, 25 ill.

The technical field to which the invention relates.

The present invention relates to a communication system mdcr (multiple access, code-division multiplexing) and F communication system mdcr.

The prior art mobile communication Systems, multiple access, code-division multiplexing (mdcr) based on the standard IS-95, which mainly supports voice messages. Predicted that in the near future mobile communications will be carried out in accordance with the IMT-2000 (international mobile telecommunications - 2000).

The IMT-2000 standard provides not only voice communications but also high-speed packet service. For example, the IMT-2000 standard supports high-quality service voice message service moving images, the search service on the Internet, and so on,

System for mobile communications mdcr includes direct communication line to transmit a signal from the base station (BS) to mobile station (MS) and return line connection for signal transmission from the mobile station to the base station. The usual system for mobile communications mdcr can't adjust the power of the common channel for the reverse link. This is because modern base station mdcr does not have a device for regulating the power of the common channel of the reverse link. In addition, it is difficult to send the appropriate commands power control corresponding mobile hundred is giovanny orthogonal Walsh code. Therefore, the mobile station takes a long time to access the system on a shared channel of the reverse link, and the mobile station can transmit only a short message. Moreover, the mobile station accesses the system, not knowing the appropriate initial power to access the system, thus affecting the system.

Fig. 1 illustrates a channel transmitting device for transmitting commands for power control in a conventional communication system mdcr. Pictured channel transmitting device can be used for trafc channel or control channel. In the description of the channel transmitting device, it is assumed that the input data must come in the form of full-speed data with a frame duration of 20 MS.

Shaper 111 cyclic redundancy check code (CEC) forms 12 bits of the CEC and adds the generated bits of the CEC to the input data 172-bit frame. Shaper 113 tail bits generates 8 tail bits, and adds the generated tail bits to the end of the data frame with the added CEC to allow the encoder 115 to initialize data in a unit frame. When 172-bit data are input, the data issued from formirawa encoding frame data, issued from the driver 113 tail bits, and the interleaver 117 performs interleaving of the encoded data issued from the encoder 115.

The selector 121 bits thins long code issued from the shaper 119 long code, the length of the longest code match the length of perenesennyj coded data. The logical element 123 XOR performs an EXCLUSIVE OR operation on perenesennymi encoded data and thinned long code for scrambling. After that, the Converter 125 converts the signal levels of the output signal of the logic element 123 EXCLUSIVE OR, converting the signal level "0" to "+1" and the signal level "1" to "-1", and performs demultiplexing of the converted signals, giving the odd data in the in-phase channel (first channel, 1-channel) and even-numbered data in the channel and quadrature phase (second channel, Q-channel). Amplification of the converted signals I - and Q - channels regulate channel controllers 127 and 129 amplification, respectively.

The controller 131 gain bit controls the amplification of the input bits power control (RM) and gives a bit of power regulation with controllable amplification of the "punchers" 133 and 135. "Punchers" 133 and 135 removes characters from the beginning issued from the controller 131 gain a bit of control. Characters issued from the "punchers" 133 and 135, multiplied by Walsh code in the multipliers 139 and 141, respectively, thereby obtaining orthogonal modulated symbols.

As the number of available orthogonal codes in a communication system mdcr limited and users can be assigned to many channels of traffic for maintenance of data, it is expected that the possible lack of orthogonal codes. Therefore, when the data transfer is temporarily stopped in a state in which the trafc channel is formed, it is preferable to temporarily release the orthogonal code channel in operation, and re-assign the orthogonal code at a point in time when re-start the data transfer. This increases the efficiency of the use of orthogonal codes.

However, channel transmitting device shown in Fig.1, assigns orthogonal code to send commands to power control, even when there is no actual data to be transmitted (in other words, even in the case when the data transfer is temporarily stopped), thus leading to inefficient use of orthogonal codes.

The inventive Poet is the anal reverse lines of communication in the communication system mdcr, if the system mdcr based on the IMT-2000 standard.

Another objective of the present invention is to provide a device and method for command transmission power control to subscribers using the common channel power control in a communication system mdcr.

Another object of the present invention is to provide a channel of a receiver and method of receiving and processing commands control the power transmitted on the common channel power control in a communication system mdcr.

The next task of the present invention is to provide a device and method of transmission to subscribers of commands power control for shared channels return line communication using the common channel power control in a communication system mdcr.

Another objective of the present invention is to provide a device and method of reception of commands power control for the shared channel return line connection on the total channel power control in a communication system mdcr.

The next task of the present invention is to provide a device and method for assigning a common channel return line connection for a particular mobile station, and adjusting the transmission power of the mobile station is gained is a device and method for assigning a common channel return line mobile station, and allowing the mobile station to adjust the transmission power assigned to the common channel of the reverse link lines in accordance with a bit power control, adopted by the direct common channel power control in a communication system mdcr.

Another objective of the present invention is to provide a device and method for mobile station communication system mdcr through which the mobile station requests the base station to assign a shared channel return line connection and then transmits a signal to a designated common channel return line connection upon receipt of a message about the General purpose of the reverse channel of the communication line in response to the request, and controls the transmit power assigned to the common channel return line connection for direct common channel power control.

In order to solve the above problem, it is proposed transmission device for a shared channel power control for base stations in the communication system mdcr, which includes a selector for receiving commands to control the power to be transmitted to many users, and multiplexing commands received power control; and extending the modulator for the extension of the output signal of the selector by multiplying the output signal of the selector to extend the sequence. The total channel power control can be used even when Bala return line communication base station receives a signal from the mobile station through the common channel reverse communication line and transmits to the mobile station a command to the power control to control the transmit power of the common channel of the reverse link lines in accordance with the received signal level.

A brief description of the drawings Fig. 1 depicts a block diagram illustrating a known channel transmitting device for transmitting commands for power control in a conventional communication system mdcr; Fig. 2 depicts a flow diagram illustrating a procedure of the power control common channel return line during data transmission between the base station and mobile station according to the first variant implementation of the present invention; Fig. 3 depicts a diagram illustrating the procedure of power control common channel return line during data transmission between the base station and mobile station according to the second variant of implementation of the present invention; Fig. 4 depicts a chart illustrating the procedure of power control common channel return line during data transmission between the base station and mobile station according to the third variant of implementation of the present invention; Fig. 5A illustrates the transmitted command power control in accordance with the present invention; Fig. 5B illustrates a lookup table for storing template switching by which commands power control is inserted in position vremenem graph illustrating the template switching time intervals commands power control for a subscriber with ID (ID) number 2 the time interval in the lookup table ID time intervals shown in Fig.5V;
Fig. 6 depicts a diagram illustrating a common channel transmitter power control for sending commands power control in a communication system mdcr according to a variant implementation of the present invention;
Fig. 7 illustrates the structure of a message on a shared channel power control, when the base station assigns the shared channel feedback line;
Fig. 8A and 8B illustrate a procedure of power control when the message is passed through the power control common channel return line connection according to the first variant implementation of the present invention;
Fig. 9A and 9B illustrate a procedure of power control when to send the message through the regulation of power assigned to the common channel for the reverse communication line according to the second variant of implementation of the present invention;
Fig. 10A and 10B illustrate a procedure of power control in the case where the base station assigns the shared channel is investing power assigned to the common channel return line connection according to the third variant of implementation of the present invention;
Fig. 11 depicts a block diagram illustrating channel transmitter of the subscriber data together with the total channel power control in a communication system mdcr according to a variant implementation of the present invention;
Fig. 12 depicts a chart illustrating the correlation between the channel information of the subscriber and commands power control issued from the common channel transmitter power control shown in Fig.6, and channel of the transmitter depicted in Fig.11;
Fig.13 depicts a block diagram illustrating channel receiver of the subscriber to receive commands power control in a communication system mdcr according to the present invention;
Fig. 14 depicts a flow diagram illustrating the General condition of the different channels for direct communication line in the case when channel transmitter base station transmits commands power control on the total channel power control;
Fig. 15 and 16 illustrate the cases when the base station transmits commands power control using a common channel power control, the mobile station take the sent commands for power control;
Fig. 17 depicts a block diagram illustrating how mobilenin in Fig.16;
Fig.18A and 18B depict the sequence of operations illustrating the operation of the base station and the mobile station, when a message is passed through the power control common channel return line connection in accordance with the present invention;
Fig.19A and 19B depict the sequence of operations illustrating the operation of the base station and the mobile station, when a message is passed through the power control common channel return line connection in accordance with the present invention;
Fig.20A and 20B depict the sequence of operations illustrating the operation of the base station and the mobile station, when a message is passed through the regulation of power assigned to the common channel for the reverse link lines in accordance with the embodiment of the present invention;
Fig.21A and 21B depict the sequence of operations illustrating the operation of the base station and the mobile station, when a message is passed through the regulation of power assigned to the common channel for the reverse link lines in accordance with another embodiment of the present invention;
Fig.22A-25V depict diagrams, illustriou is sustained fashion options for the implementation
It should be noted that in the following description of preferred embodiments formulated specific details to provide a more complete understanding of the present invention, in spite of this specialist in the art can implement the invention without these specific details.

It should be noted that in the accompanying drawings similar numerical designations are used to indicate elements having the same or equivalent structure. In the following description, well-known functions or constructions may be not described in detail since they would complicate the understanding of the invention with unnecessary detail.

In Fig. 2-4 shows charts illustrating procedures for managing power of a common channel return line during data transmission between the base station and mobile station according to the first or third options for the implementation of the present invention, respectively. In particular, the diagram in Fig.2 illustrates the case in which control the total capacity of all channels in the reverse link, and the diagrams in Fig.3 and 4 illustrate the cases in which control the power assigned to the common channel of the reverse link. the mode Aloha, this, as described in the standard IS-95A. For example, in Fig.3 shared channel return line connection, when the mobile station sends the base station, the initial request message of the appointment (i.e., the request for assignment of a common channel), running in segmented mode Aloha.

Mobile station (MS) transmits (Fig.2) signal header on a shared channel of the reverse link, and the base station (BS) sends the mobile station a command to the power control under direct common control channel capacity. In this case, the total channel return line running in segmented mode, Aloha, and the start position of the time interval a new message is defined between the base station and mobile station. The mobile station transmits the intended message signal at a specified time after sending the signal header for a specified period of time. There are three preferred ways to determine a suitable time, when the mobile station can transmit an alert message.

In the first preferred method, the mobile station transmits a signal message after sending the signal header for a specified period of time. That is, the mobile station transmits si the CMV signal header for a specified period of time, the mobile station transmits the intended message signal to the base station at a certain time.

In the second preferred method, the base station informs the mobile station time, transmitting the message when the mobile station can transmit an alert message on a shared channel of the reverse link. For initial power control base station sends a command to the power control direct common channel power control by measuring the signal level of the header received from the mobile station. After taking command of the power control of mobile station then adjusts the transmit power in accordance with the accepted command of the power control. That is, after the capture signal header transmitted from the mobile station, the base station measures the signal level for the duration of the signal header and determines whether the measured level is appropriate. The base station sends a command to the power control through the formation of bit power control (or command power control) in accordance with the measurement. Then, the mobile station adjusts the transmission power of the signal header according to the command module is the main station is not sending the message before receiving command messages from the base station or within a specified period of time and continuously transmits only the signal header on the General channel return line for regulating the initial power so far from the base station will not be accepted command send the message.

In the third preferred method, the mobile station adjusts the transmit power according to the command of the power control at a specified time between the mobile station and the base station and sends a message with the adjusted power on a shared channel of the reverse link.

In the procedure of transfer options header, which should be agreed between the mobile station and a system, or signals for the initial capture other hand, known to the mobile station and the system is passed to transfer the primary message. For example, the signals known to the mobile station and the system can be all "0" or "1".

While the base station sends a command to the power control to control the power of the common channel of the reverse link, the power command power regulation, adopted from the mobile station, may be lower than the threshold value, or a direct line of communication can have a bad channel state. In this case, the mobile station should stop sending signals. In this case, the channel state of a straight line can be determined by measuring the relations of the EU/I0(energy is s interference, which can occur when a mobile station sends a message on the reverse channel in a state in which power is not regulated accordingly.

The base station (Fig.3) sends a common channel for direct communication line command the mobile station to send a message using the designated common channel for the reverse link, together with the information required when issuing the command. This procedure may be available in the case when a base station requests a response message from the mobile station or requests the mobile station to send certain data. In this case, the mobile station sends the signal header (or pilot signal) up until the base station sends a command to send the message, or within a specified time so as to adjust the transmission power between the base station and mobile station. The base station sends a command to the power control direct common channel power control in response to a signal from the mobile station. After receiving command messages from the base station or after a specified period of time, the mobile station sends the base station is scheduled message p is power control, to continuously regulate power, while the mobile station sends a message.

In this case, assigned to a common channel refers to a specific channel, which can only be used by a specific user, from the total number of channels that can be used by all users. To assign a common channel separately provided several codes in addition to codes for common channels, and one of the codes assign to a particular user for a while. Or, for General purpose channels one of the common channels assign to a particular user that requests the assigned channel, and therefore no other user can use this channel, while it is used that particular user. When assigning a common channel return line connection, it is possible to determine what the long codes should be used as an extender codes. Long codes can be existing public long codes, long codes for channel access, long codes for common control channels or specific long codes for the destination channel.

Mobile station (Fig.4) sends the base station a message is ncia can send a message after you add information about the number of data to be sent to a designated common channel. The request message may be an ID (identifier) of the mobile station (for example, EPN - electronic serial number). After receiving a request message about the purpose of the channel and information about the amount of data the base station decides to assign a common channel, taking into account the use and the amount of data that must be sent from the mobile station, which requests the assigned channel, and the system state, and sends a response signal to the mobile station using a common channel for direct communication line. When the response signal includes information about the purpose of the channel, the base station sends a command to the power control after a specified time has passed. In this case, the mobile station transmits a signal header up until the base station sends a command to send the message to allow the mobile station to send a message to a designated channel on the basis of the response signal or within a specified time so as to enable the base station to use this header when demodulation. In addition, the duration of the signal header can be used to regulate the transmission power p and or after the time expires, the mobile station sends the base station specified message on the assigned channel for the reverse link. Even at this time, the base station continues to send a command to the power control to continuously regulate power, while the mobile station sends a message.

To adjust the signal power of the common channel return line connection, the base station should send a command to the power control of mobile station in a straight line. However, when the mobile station sends a request message to the shared channel of the reverse link dedicated channel is not appointed (not define) for direct communication line and the data or the control command is passed directly to the General channel. When a dedicated channel is not assigned to a straight line and one channel Walsh used by several users is similar to the common channel, it is difficult to send commands to the power control corresponding mobile stations. Although commands power control described in Fig.2-4, can be sent through the perforation of the bits of the power control in the forward common channel, you can also use another specific channel, for example, a shared control channel capacity.

Fig.5A is a diagram illustrating a command to control the power transmitted by the common ka is Regionalny code total channel power control and sends commands to control power to multiple subscribers via the shared control channel capacity. Group power control (hereafter referred to as RM) has a length, which is the inverse value of the frequency command transmission power control. That is, if the power control is passed 800 times per second, the length of one RM is 1.25 MS (=1/800 sec). Further, in the drawing CRM - CRM represent commands power control for the respective subscribers, and one common channel power control may transfer a maximum of M commands power control. That is, as shown in Fig.5A, one RM consists of M commands power control CRM - CRM for M subscribers, and timing broaden one orthogonal code and transmit on a shared channel power control.

Team power control CRM-CRM for the respective subscribers can be transmitted over a common channel power control by means of fixing their positions. However, when the transmit power commands power control different or when the time intervals in which commands are transmitted power control, are mixed with time intervals in which commands power control is not passed, preferably abruptly change the position commands power control. It drives the power control so that to reduce interference according to the positions of time intervals and to provide a uniform range of transmission base stations. In this case, the template switching (time intervals) commands power control can be carried out similarly to the method used to implement pattern with a frequency hopping system FH-SS (spread spectrum with frequency hopping).

In the embodiment, the template switching commands control the power stored in the lookup table for pseudo-random location of position commands power control.

Fig. 5B illustrates a lookup table for storing template switching by which commands power control insert in the time intervals of the common channel power control in accordance with the present invention. In Fig.5B the number of commands power control, M, taken equal to 8. In the drawing figures in their respective squares represent the ID number of time intervals assigned to the subscribers. Accordingly, the position commands power control within the same RM for the shared control channel capacity depends on the ID number of the time interval and the number of timing.

Finance power having the ID number of the time interval equal to 2 in the lookup table ID time intervals, is shown in Fig.5V.

Fig. 6 depicts a block diagram illustrating a transmitter of a General channel power control for sending commands to regulate power to the respective subscribers that share the same orthogonal code and belong to the same group power control. Team power control CRM-CRM transmitted to the respective subscribers, can be scrambled with a pseudo-random noise sequences of the user (PSHP) PSP-PSPM. Sequence 311-31M form a unique pseudosolenia (PN) sequence (for example, long codes) assigned to the respective subscribers. Multipliers 321-32M multiply commands power control CRM-CRM to the corresponding PN-sequence user PSP-PSPM respectively. Related commands power multiplied by different coefficients usilenii, then transfer to the appropriate subscribers. That is, the controller gain 331-33M take command of the power regulation, granted from the respective multipliers 321-32M, and gain control commands received power control in slovania power may be fixed on a common channel power control. Or, the location of the commands power control can be changed in appropriate timing to ensure a uniform spectrum. The controller 340 time intervals generates a signal for determining the positions of time intervals into which insert command power control, issued by the General channel power control. That is, the controller 340 time intervals contains a lookup table of template switching time intervals, having a structure as shown in Fig.5B, and generates the control signal timings for the assignment of time intervals into which insert command power control for the respective subscribers via the "consultations" with the table template switching time intervals.

The selector 350 accepts commands CRM-CRM power control with adjusted gain and performs multiplexing commands received power control in accordance with the control signal time intervals, issued from the controller 340 time intervals. That is, the selector 350 under control of control signal time intervals, issued from the controller 340 time intervals, selects one of the commands you already power. As the selector 350 may be used by the multiplexer.

The orthogonal modulator consists of a shaper 361 orthogonal code and multiplier 362. Shaper 361 orthogonal code generates an orthogonal code orthogonal modulation commands control the power transmitted on the common channel power control, and the multiplier 362 multiplies commands power control for the respective subscribers, issued from the selector 350, the orthogonal code. That is, the orthogonal modulator modulates commands power control for multiple subscribers using one orthogonal code, and outputs the orthogonal modulated commands power control in the total channel power control.

Extend the modulator consists of a shaper 371 extension sequence and multiplier 372. Shaper 371 extension sequence generates a sequence of extensions to extend orthogonal modulated signals. The multiplier 372 multiplies the orthogonal modulated signals to extend the sequence to extend the command power control, and provides advanced signal commands power control in a common control channel howl manipulation (DPPM), they can also use the modulation quadrature phase shift keying (CMPS). In this case, commands power control issued from the selector 350, demultiplexers to throw the odd team power control in the first channel and the even-numbered command power control in the second channel. After that, the divided channel signals separately subjected to orthogonal modulation and extends modulation.

In the variant example of implementation of the commands control the power transmitted to the subscribers by the total channel power control, scrambler corresponding PN sequences user PSP-PSPM and give the corresponding controllers 331-33M gain. However, you can delete the schema scrambling commands power control PSH-sequences of the user. In this case, commands power control CRM-CRM directly serves on the corresponding controllers 331-33M gain. Controllers 331-33M gain then multiply commands received power control to the appropriate gain and give them to the selector 350.

The controller 340 time intervals determines the time intervals for "placement" commands the I power. As shown in Fig. 5A, the controller 340 time intervals assigns positions corresponding commands power control for the respective groups power control. There are two known ways to assign commands power control: one way records the position commands power control, and the other way change the positions for the respective RM. In the embodiment shown in Fig.6, the controller 340 time intervals contains a table view template switching time intervals, is shown in Fig.5B, and variable image assigns an insertion commands power control for the respective subscribers. The selector 350 assigns commands power control issued by the controller 331-33M gain, as shown in Fig.5A, at certain positions in accordance with the control signal time intervals, issued from the controller 340 time intervals.

Team power control can then be multiplied by the orthogonal code multiplier 362 for orthogonal modulation and again multiplied by the expanding sequence in the multiplier 372 for the extension.

If the base station sends commands to power control for sootwetstwuet transmit power return line connection according to the commands power control. In most cases, the mobile station can receive user data and control commands through the channels of traffic, in addition to commands to regulate power received over a common channel power control. For this mobile station using one of the following two types of receiver separate receiver comprising receiver General channel power control and receiver channel traffic; and shared receiver that accepts commands power control on the total channel power control, using the receiver channel traffic. Channel traffic refers to the control channel and the data channel for transmission of control commands and data. In this case, the traffic channels include a primary channel for voice traffic and additional channel for packet data. The structure of the mobile station are described below.

Fig.7 illustrates the structure of the message that the base station sends the mobile station on the direct line of communication assigned to the common channel of the reverse link, when using the common channel power control. The message can be used as the response message, when the base camp is and the base station requests assigned to a common channel of the reverse link, as shown in Fig. 4. As shown, the message consists of a message body with a certain content, flag, destination, information about the purpose of the channel representing assigned a common channel for the reverse link, flag power control representing the information to regulate whether power, information about the time of the beginning of the title, representing the time from the start signal of title, non Walsh, representing the number of the Walsh code used for common channel power control, and the index of the time interval representing the positions of the commands power control. When the total channel power control is not used, the number of Walsh and the index of the time interval is excluded from the message.

The flag of the destination indicates whether assigned to a common channel is available or not. Information about the purpose of the channel is identification information assigned to the channel when the assigned channel is available. Information about the purpose of the channel can be used to inform long code that you want to use to expand the overall channel return line connection in the mobile station. When a long code is already known to the mobile station, information about destinations is agrovoc also have the power, only when using the assigned channel. General command of the power control includes the number of the Walsh index and the time interval for the common control channel capacity assigned to the mobile stations. The number of Walsh, who is a parameter of the system does not require a separate transmission, when it is known in advance to the mobile station or is similar to existing direct channel pilot signal. The index of the time interval can define a fixed position when the command control facilities are located in fixed positions or to determine the appropriate ID time intervals, when the position command to the power control changed in several forms. Even when the index position of the time interval is changed for the respective pseudo-random timing, there is no need to pass the index of the time interval, if it is known base station and the mobile station.

Further, if the mobile station sends a message through the power control common channel for the reverse link, the signal header is used for initial power control. Although the time for starting the signal transmission header can be installed after the expiration WL station can determine information about the time of the beginning of the header within the message structure, is depicted in Fig.7.

Fig.8A and 8B illustrate a procedure of power control when the message is passed through the power control common channel return line connection according to the first variant implementation of the present invention. It is assumed that the reverse common channel of the communication line work in segmentierung mode Aloha, when they are not assigned, as in the standard IS-95, so that they can conflict with each other. In this case, it is assumed that the ID time intervals total channel power control and General channels reverse lines of communication agreed in advance between the base station and mobile station according to the principle of one-to-one (or point-to-point).

In Fig. 8A shows a diagram when the base station transmits the power control to the mobile station and the mobile station sends a message "the Message." after signal transfer title within a specified period of time to use a shared channel return line connection with regulated power. The description below is for activities under the regulation of the initial power of the base station and the mobile station while the mobile station transmits the signal header.

the following expression:
The initial transmit power = (1-I constant) - (total capacity of reception of the mobile station) [dB]. (1)
The initial transmit power = (2-I constant) - (signal strength, Ec/Io, pilot signal from its associated base station) [dB]. (2)
In expressions (1) and (2) can be used for various constants for the respective systems. These values should be low enough to minimize the mutual influence with the system. Moreover, since the initial transmission power is set to a sufficiently low value within the normal operating range, the base station sends a command to increase the power as long as the signal header sent from the mobile station will not be captured during the process of power control. After the capture signal header from the mobile station, the base station estimates the power of the reception signal and sends a command to the power control in accordance with the assessment. This way you can adjust the power of the reception of the return line to the appropriate range before sending the actual message, if the base station is not able to capture the signal header, because the initial power of the reverse common channel is too low, or if most as "regulation of primary power." Because the base station may compare the signal strength (or signal level) return line connection after the capture signal header sent from the mobile station, the base station may send a command to increase power or command to reduce power to the mobile station.

In the embodiment, the length TW or the time during which the mobile station transmits a signal header for regulating the initial capacity is specified. However, the duration of TW can be changed by sending the command message sending to mobile
the station at the time when it is estimated that the base station is properly adjusted power by capturing the signal header.

Therefore, the mobile station may stop transmitting the signal header before the end of the specified duration TW.

Fig.8A corresponds to the case when the channel pilot signal is not passed along with the message on a shared channel of the reverse link. This is the case when the shared channel return line does not include a pilot channel signal, as occurs in the standard IS-95. However, for coherent demodulation of the reverse link according to the IMT-2000 peredelka the base station receiver and synchronizing the transmitter with the receiver.

The signal transmitted by the pilot channel signal, (Fig.8B) during the initial regulatory power serves as a signal of the header and after the regulation of the initial capacity is used as the pilot signal. The signal level is used as the pilot signal may differ from the level signal serving as a signal header. When the signal header is passed through the channel pilot signal in this way, in the General channel for the reverse line support standby state without generating other signals within the specified time TW or until the base station sends a command message transmission, as described above. This case is the same as for the scheduled shared channel, illustrated in Fig.9B and described below.

Fig. 9A and 9B illustrate a procedure of power control when the message is passed through the regulation of power assigned to the common channel for the reverse communication line according to the second variant of implementation of the present invention. In this case, the power regulation can be achieved as described with reference to Fig.8A and 8B.

Mobile station (Fig.9A and 9B) sends a request message about the General purpose of the reverse channel of the communication line is the first line gives the mobile station to use assigned a common channel of the reverse link, and sends a response signal with information about the purpose of the channel. Considering the delay in the transmission of the response signal and the delayed reception for the mobile station, the mobile station sends a message after waiting for a specified time TG and transmits the signal header during the time TW. The base station also sends a command to the power control after a time TG, and the mobile station transmits, as shown, the signal header and the message assigned to the common channel of the reverse link, adjusting power according to the command of the power regulation, adopted from the base station. Regulation of primary power performed between the base station and the mobile station during the time TW, when the pilot signal serving as a signal header, broadcast on channel pilot signal.

Fig. 10A and 10B illustrate a procedure of power control, if the base station assigns the shared channel to the return line connection request of the mobile station, and mobile station sends a message via power control that is assigned a common channel of the reverse link. Power control may be performed as described with reference to Fig.8A and 8B.

It is assumed that h is mode Aloha, as in the standard IS-95. Next, the base station sends a command to the power control of the mobile station on the direct common channel power control. In the drawings, the signals transmitted through the respective channels, are presented depending on time. Fig.8A, 9A and 10A correspond to the case where the reverse link is not using the pilot channel signal, and Fig.8B, 9B and 10B correspond to the case where the reverse link uses the pilot channel signal. On the other drawings, the transmission power of the common channel return line connection with the adjusted power is represented by the amplitude of the transmission signal, when the mobile station adjusts the initial power through signal transmission header.

As stated above, if the base station outputs the command to the power control for the respective subscribers by the total channel power control for a direct line of communication, the mobile station adjust the transmit power of the reverse communication line according to the commands of the power regulation, adopted by the General channel power control. In most cases, the mobile station can receive the message or command control channel data (or traffic), in addition to the command control signal of the common channel return line for receiving the control message, in addition to the signals of the common control channel for the reverse link. This case is described below using an example. In this case, as described above, the device management command, control power common channel power control and signal receiving forward link data can be implemented in a separate receiver or shared receiver. A separate receiver sends a command to the power control independently using a common control channel power, channel traffic and control channel. A separate receiver may include a separate device compression for independent demodulation of the data channel traffic on the control channel and the shared channel power control. Meanwhile, the shared receiver demodulates the command to control the power transmitted on the common channel power control, and the corresponding information channel, using one unit of compression.

In Fig. 11 depicts a transmitter direct data channel to transmit channel information together with the transmitter common channel power control according to the present invention. Fig.12 is a chart showing the relationship between the channel information of the subscriber and commands control the power delivered from the transmitter General CAG. 13 is a block diagram illustrating the structure of a mobile station for receiving channel data of the straight line shown in Fig.11.

Fig.14 illustrates a direct common channel power control, in which direct data channel is not "perforated" in position when the command power control is passed to the mobile station. The work is shared and receiver separate receiver described with reference to Fig.15 and 16, respectively. In this case, use the shared receiver depicted in Fig.13, and a separate receiver, shown in Fig.17.

Shaper 111 code CEC (Fig.11) generates 12 bits of the CEC and adds them to the data input frame. Shaper 113 tail bits generates 8 tail bits to indicate the end of one frame and adds them to the data frame issued from the imaging unit 111 of the code of the CEC. The encoder 115 encodes the frame data issued from the driver 113 tail bits. As the encoder 115 may be used convolutional encoder or a turbo encoder. Interleaver 117 performs interleaving the encoded bits (i.e. characters) issued from the encoder 115. A block interleaver can be used as an interleaver 117.

Shaper 119 the length of the long code is a unique identification code of the user and corresponds to the PN-sequence of the user in the transmitter. Block 121 thins thinning of the long code to harmonize frequencies of the symbols, issued from the interleaver 117, with the frequency of the long code. The logical element 123 XOR performs an EXCLUSIVE OR operation on the encoded characters issued from the interleaver 117, and thinned long code.

Block 125 demuxing and power conversion signals performs demultiplexing of the data issued from the logic element 123 EXCLUSIVE OR data of I-channel (i.e. the first channel data and Q-channel (i.e. the second channel), and converts the signal levels of character data by converting data "0" to "+1" and data "1" to "-1". The controller 127 gain channel receives the data of the first channel and adjusts the amplification of the received data of the first channel in accordance with a signal from the controller gain. The controller 129 gain channel receives the data of the second channel and adjusts the amplification of the received data of the second channel in accordance with the signal controller gain.

The controller 400 positions punching generates a control signal positions punching for punching symbols in the channel of the traffic corresponding to the positions of time intervals into which insert CT scan signal to control the position of the perforation in the same way, the controller 340 time intervals, is shown in Fig.6. The control signal the position of the punching shape during the duration of the character data of one frame, based on the lookup table template switching time intervals, is shown in Fig.5V.

The first "punch" 133 receives the data symbols, issued from the controller 127 gain channel and hole-punches (or removes) the data symbols in accordance with the control signal the position of the punching issued from the controller 400 punching position. The second "punch" 135 receives data characters issued from the controller 129 gain channel, and deletes data in accordance with the control signal the position of the punching issued from the controller 400 punching position. That is, the "punchers" 133 and 135 receive data characters issued from the controller 127 and 129 of the gain channel, and perforined the data symbols are located at the positions corresponding to the control signal the position of the punching issued from the controller 400 punching position. In the "punchers" 133 and 135 generates data symbols of the first and second channel symbols located in the time intervals for the commands of the power regulation of the number of Walsh code - W and the length of the Walsh code - W. The multiplier 139 multiplies the data symbols of the first channel is issued from the first "punch" 133, orthogonal code to form an orthogonal modulated signal for the first channel. The multiplier 141 multiplies the data symbols of the second channel is issued from the second "punch" 135, orthogonal code to form an orthogonal modulated signal for the second channel. PSH-I driver 143 generates a PN sequence PN-I for the first channel (i.e. I-channel). The multiplier 145 multiplies the orthogonal modulated signal issued from the multiplier 139, PSH-I sequence for the formation of the enhanced signal for the first channel. PSH-Q driver 147 generates a PN sequence PN-Q for the second channel (i.e. Q-channel). The multiplier 149 multiplies the orthogonal modulated signal issued from the multiplier 141, PN-Q sequence for the formation of the extended signal for the second channel.

For convenience of explanation it is assumed that the receiver of the main channel not only demodulates the input data, but also accepts commands to control the power transmitted on the common channel power control. In this case, the channel transmitter, imately 111 code CEC adds bits of the CEC to the data input frame, to allow the receiver to determine the quality of the frame. When one frame has a length of 172 bits, shaper 111 code CEC forms 12 bits of the CEC and adds them to the data input frame. Data frame with added bits CEC served in the shaper 113 tail bits, which generates 8 tail bits to the frame and adds them to the data frame with added bits of the CEC. The tail bits are used to indicate the completion of one frame, and they are used to initialize the encoder 115 in the next stage after the shaper tail bits 113. It is assumed that the encoder 115 used in the embodiment is a convolutional encoder, having a length limit K=9 and rate coding R=1/3. In this case, the encoder 115 encodes 192 bits per frame to 576 characters per frame. Interleaver 117 receives 576 characters per frame issued from the encoder 115, and rearranges the bits within a frame in the form of a frame element to increase resilience to packet errors.

Block 121 thins thinning of the long code issued from the shaper 119 long code to harmonize frequencies of the long code with the frequency of characters issued from the interleaver 117. The logical element 123 XOR performs an EXCLUSIVE OR operation on pererezannym zivania and power conversion signals performs the demultiplexing characters issued from the logic element 123 EXCLUSIVE OR for the issuance of the odd symbols in the first channel and the even-numbered symbols in the second channel. The block 125 demuxing and power conversion signals converts the level of the signal, converting the signal level "1" to "-1" and the signal level "0" to "+1". Controllers 127 and 129 gain channel adjust the gain of the characters for the first and second channels, respectively.

"Punchers" 133 and 135 then delete the characters in the positions of the control commands power common channel power control, under the control of the controller 400 positions punching. That is, the controller 400 positions punching assigns positions delete characters corresponding to the positions of the teams power control for the respective subscriber in the total channel power control, the same way that the controller 340 time intervals, is shown in Fig. 6. "Punchers" 133 and 135 then remove the assigned symbols for the first and second channels, respectively.

Fig. 12, as described above, illustrates the relationship between the commands control the power delivered from the transmitter to the total channel power control shown in Fig.6, channel Pius 511 indicates the total channel power control, with M commands power control CRM - CRM for M subscribers, where KPMi is the command of the power control for the i-th (subscriber). Next, the numeric designation 513 indicates the main channel, in which the symbol corresponding to the command power control KPMi has been removed (that is perforated).

After punches 133 and 135 (Fig.11) performed perforation, multiplier 139 multiplies the characters issued from the perforator 133, orthogonal code, issued from the driver 137 orthogonal code to generate orthogonal modulated transmission signals for the first channel. The multiplier 141 multiplies the characters issued from the perforator 135, orthogonal code, issued from the driver 137 orthogonal code to form orthogonal modulated transmission signals for the second channel. The orthogonal code used in the channel the transmitter is a Walsh code or quasiorthogonal code. In addition, the multiplier 145 and 149 multiply orthogonal modulated signals for the first and second channels on the PN-sequence PN-I and PN-Q, respectively, to extend orthogonal modulated signals.

Fig.13, as described above, is a block diagram illustrating canalin the particular forms extend the sequence to compress the received enhanced signal. PN-sequence can be used as an extender sequence. The multiplier 613 multiplies the input enhanced the signal to extend the sequence to compress the extended input signal.

The selector 615 bit KRM generates a signal select to select the time interval in which the insert command power control for the respective subscriber. The first shaper 617 orthogonal code generates the assigned orthogonal code Wdt, shaper 619 generates an orthogonal code Wsp assigned to the shared channel power control.

Orthogonal code Wsp formed from the second imaging unit 619 orthogonal code, usually appointed by several subscribers, receiving commands control the power transmitted on the common channel power control for a direct line of communication. The switch 621 selects the orthogonal code Wdt or orthogonal code Wsp in accordance with the select signal position, issued from the selector 615 bit KRM. The multiplier 623 multiplies the compressed signal issued from the multiplier 613, orthogonal code selected in the switch 621, for orthogonal demodulation of the modulated signal. Accumulating adder 625 sa, associated with the common control channel capacity.

The third driver 631 orthogonal code generates an orthogonal code Wpi for channel pilot signal. The multiplier 633 multiplies the output signal issued by the multiplier 613, orthogonal Wpi code for the pilot channel signal to form a channel signal, the pilot signal. Block 635 channel estimation estimates the energy of the pilot signal by receiving the output signal of the multiplier 633. Block 637 computing of complex-conjugate values calculates the complex-conjugate value by receiving the output signal of block 635 channel estimation. This structure corresponds to the receiver channel pilot signal.

The multiplier 627 multiplies the output signal of the block 637 computing of complex-conjugate values on the output signal accumulating adder 625. The switch 629 switches the output signal of the multiplier 627 on the data channel or the control channel power according to the signal selection position of the selector 615 positions of bits LOC.

While working channel receiver of the subscriber having the above described structure that receives information and the corresponding channel of the subscriber and the total channel power control. The multiplier 613 compresses the received signal, which bydanny of the shaper 611 expanding sequence. The compressed signal is again multiplied in the multiplier 633 on orthogonal code Wpi for channel pilot signal. Thus the multiplier 633 allocates a channel signal, the pilot signal from the received signal. Block 635 channel estimation estimates the channel signal, the pilot signal to determine the status of the pilot channel signal. The estimated channel signal, the pilot signal fed to the multiplier 627 through the block 637 computing of complex-conjugate values. The signal of the pilot channel signal demodulated in the same way as in a conventional receiver channel pilot signal.

Channel receiver subscriber receives positional information about a time interval in which the insert command power control for the respective subscriber, and information about the orthogonal code for the shared channel power control. The selector 615 bit KRM stores a lookup table template switching time intervals shown in Fig.5V. Therefore, the selector 615 bit KRM can detect the time interval in which the insert command power control for the corresponding subscriber on the basis adopted by the positional information and the lookup table. In other words, it is possible to detect the position of the character, perforated as at the mi 621 and 629 in the position of the perforated character. The switch 621 is usually connected with the output node of the first driver 617 orthogonal code and commute with the output node of the second driver 619 orthogonal code in response to the signal selection position, formed in the selector 615 bit KRM. Similarly, the switch 629 is usually connected to the input node of the multiplexer of the data (not shown), and his commute to the input node of the multiplexer commands power control (not shown) in response to the signal selection position, formed in the selector 615 bit KRM.

As a result of the processing interval symbolic data compressed signal issued from the multiplier 613, is multiplied in the multiplier 623 on the first orthogonal code Wdt for demodulation and then summarize in nakaplivaya the adder 625. The output signal of the adder 625 adjust the multiplier 627 and then served on the unifier of data through the switch 629. During the processing of character data, if the selector 615 bit KRM generates a signal selection position, the switch 621 is switched to the output node of the second driver 619 orthogonal code, and the switch 629 is switched to the input node of the multiplexer commands power control. In the command power control for southwestoriental commands power control through accumulating adder 625, the multiplier 627 and the switch 629.

In General, the channel receiver of the subscriber generates two separate orthogonal code, one for the demodulation of the data channel of the subscriber and the other for demodulation commands power control. That is, the channel receiver of the subscriber selects an orthogonal code for a channel of the subscriber for demodulation of character data and selects the orthogonal code for the shared channel power control for demodulation commands power control. In this case, since the symbol in the channel of the subscriber located at the position corresponding to the command power control for a subscriber, perforated, there is no impact at the symbol demodulation commands power control in the receiver.

In Fig.14 shows an example when a base station sends signals to various direct channels of data at the same time transmitting commands power control using a common control channel capacity. In this example, direct data channels are shared channels direct communication line (for example, a trafc channel or control channel), and commands the power control is inserted in the signals separate common channel power control signals instead of the common channels is hariramani, when commands power control is passed to the relevant subscribers by the total channel power control.

In Fig.15 and 16 depict various examples of mobile stations simultaneously receiving from the base station a control message on a shared channel direct lines of communication and command control power common channel power control.

In Fig.15 shows that the mobile station receives both messages on various shared channels direct lines of communication and command control power common channel power control using a single channel receiver. To use a common channel power control, the base station sends the mobile station the number of the Walsh code for the shared channel power control that you want to use, and information about the position team power control (hereinafter, referred to as "information of a General channel power control"). However, if the position of the time interval to determine a pseudo-random manner, usually known mobile station and the base station, there is no need to send information representing the position commands power control (or bit power control). On the basis of information in the private Walsh codes and position which are the commands power control for them.

Channel receiver in each mobile station receives a message transmitted through direct common control channel using the assigned Walsh code Wj or Wk), and after expiration of a specified time takes command of the power control using Walsh code Wi, is defined for the total channel power control. After taking command of the power control channel receiver accepts the message direct common channel using the previously used code Walsh (Wj or Wk). As the mobile station receives the message directly to the General control channel and the command of the power regulation on the common channel power control using a single channel receiver, she can't take the symbol of the messages transferred by direct common control channel, at the same time taking command of the power control, thereby obtaining the result of punching commands power control in the forward common control channel.

However, when the command power control added to channel traffic, as is the case in known systems, a single Walsh code can be continuously determined for transmission Kong traffic thus leading to inefficient use of Walsh code. In the embodiment of the present invention, however, when using the common channel power control, you can release the assigned Walsh code Wj or Wk), when there are no messages to send, and to take command of the power control in the specified position, using Walsh code Wi, thus effectively using the capabilities of Walsh code for a direct link.

In Fig.16, each mobile station receives messages on a variety of common control channels, a direct line of communication using two channel receiver, and takes command of the power regulation on the common channel power control. Unlike the case shown in Fig.15, since the mobile station has two channel receiver, it can take the characters of the message transmitted on the common control channels, direct line, at the same time taking command of the power control. In the result, it is possible to prevent the deterioration of the signal channel, which can occur when the characters in the forward common control channel partially perforined to insert commands power control.

Fig. 17 is a block diagram illusage data channel in the same way, as shown in Fig.16.

Fig. 18A and 18B depict the sequence of operations when the operation of the base station and the mobile station, when a message is passed through the power control common channel return line connection in accordance with the method of the present invention. In this embodiment, mobile station and base station control initial power using the signal of the header to the mobile station transmits during a specified time TW to send the actual message.

When the operation A1 (Fig.18A) mobile station (MS) transmits a signal header from the initial level to the base station through the common channel for the reverse link. The mobile station when the operation A2 checks accepted if the command power control from the base station through a common channel for direct communication line. After the failure when receiving commands power control of mobile station in operation A3 increases the level (i.e. power) of the signal header by the specified amount in the belief that the base station could not confirm the signal of the header due to the low power transmission signal. After that, the procedure returns to operation A2.

However, when between monoe time in a straight line, operation A3 can be omitted. After taking command of the power control from the base station to the mobile station when the operation A4 controls the signal level of the header according to the command of the power control and transmits the signal header with the adjusted power to the base station.

After signal transmission header with the adjusted power of the mobile station continues the work in accordance with the operation A5 to check expired if the specified time TW. If the specified time TW has elapsed, the mobile station when the operation A6 compares the power of the accepted command of the power control threshold value. If the power accepted command of the power control is equal to or above the threshold value, the mobile station continues the work in accordance with the operation A4 and continues to transmit the signal header to the base station through a power control signal header according to the command of the power control. However, if the operation A6 is determined that the power of the accepted command of the power control below the threshold value, the mobile station when the operation A7 transmits a signal header, supporting the previous power level. Then, when the operation A8 how many times the mobile station has transmitted the signal header with the previous power level. If the operation A9 the value of the counter SC is equal to or greater than a threshold, the mobile station when the operation A11 frees the shared channel of the reverse link. However, if the value of the counter SC is below the threshold, the procedure returns to operation A5. As noted above, when the command of the power control has a lower power level than the threshold value, for several times, the mobile station releases the shared channel return line connection and stops the data transmission in the belief that the channel power control for direct communication line is in poor condition. In this variant example of implementation, the mobile station releases the shared channel return line connection by checking the power receiving commands power control during transmission of the signal header. Of course, however, you can also release the shared channel return line connection even during transmission of the message if the command channel power control is in poor condition.

Meanwhile, if the operation A5 is determined that the specified time TW has elapsed, the mobile station when the operation a10 continuously takes command of the power control from the base station and simultaneously sends scheduled with the according to accepted command of the power control. After sending the message, the total channel return line connection is released when an operation.

In Fig.18A, the mobile station transmits the signal header to the base station through the common channel return line connection to the actual sending of the message when the operation a10, and the base station then sends the mobile station a command to the power control in accordance with the power of the signal header. Thereby perform the regulation of the initial power for the power control common channel return line to the desired degree. The purpose of the regulation the initial power is to allow the mobile station to safely send the first few frames of the scheduled message.

Next (Fig. 18V) base station checks if the operation B1 accepts the signal header from the mobile station.

After the failure detection signal header from the mobile station to the base station when the operation V7 sends the mobile station a command to increase the power to give a command to increase the power for the reverse link. This should increase the probability of initial capture by sending commands to increase power to the mobile station when the power return line, and then the base station when the operation B2 measures the received signal level of the header, and then, when the operation B3 sends a command to the power control of mobile station in accordance with the dimension. After that, the base station determines when transactions B4, expired if the specified time TW, if not, then the work is carried out in accordance with the operation B1. However, after the expiration of a specified time TW mobile station when the operation B5 receives the message sent from the mobile station, and then releases the corresponding common channel operation B6. Meanwhile, the base station sends a command to the power control of the mobile station, even taking the message from the mobile station to allow the mobile station to adjust the transmission power according to the command of the power control.

Fig. 19A and 19B depict the sequence of operations when the operation of the base station and the mobile station, if the message is passed through the power control common channel in response to a communication line according to a variant implementation of the present invention. Compared with the embodiment shown in Fig.18A and 18B, an implementation option, illustrated in Fig.19A and 19B, characterized in that the base station informs the mobile station relative to the transmission time of the message during the initial regulatory power between the base station and mobile station.

Procedure, izobrajaet operations A5 in Fig.18A. When the operation C5 mobile station checks accepted if the command message transmission from the base station to determine whether to complete the regulation of the initial power and sending the specified message.

The procedure is shown in Fig.19C, is equivalent to the procedure depicted in Fig.18B, except that the operation B4 in Fig.18V replaced by operations D4 and D5. When the operation D4 base station measures the level (i.e. signal strength) of the signal header sent from the mobile station to determine whether the received signal header within the acceptable range. If the received signal level header is within the allowable range, the base station sends a command to send the message, the mobile station when the operation D5, and a team of regulatory power.

Fig. 20A and 20B depict the sequence of operations when the operation of the base station and the mobile station, if the message is passed through the regulation of power assigned to the common channel for the reverse communication line according to another variant implementation of the present invention. Even in this embodiment, mobile station and base station exchange the actual reports is an implementation option performs power control only for the scheduled shared channel, the channel request and the operation determination for the designated common channel precede them.

When the operation E1 (Fig. 20A, the mobile station transmits a request signal channel to the base station using the assigned channel. The mobile station may send information regarding the message you want to send along with the request signal channel. The base station then analyzes the information sent from the mobile station to determine whether to use assigned a common channel of the reverse link. If the use of a designated common channel of the reverse link, the mobile station sends a command to the destination channel and associated information about the purpose of the channel as a response signal on the common channel is a straight line (see operation Fl, F2, F3 and F11 in Fig.20V). The mobile station then receives the response signal when the operation of E2 and determines when transactions E3 whether a signal in response to the confirmation signal "ACK.", or negative confirmation signal "No ACK.". In this case, the signal "ACK." indicates that the base station allows the mobile station to use assigned a common channel of the reverse link, and signal "No ACK." indicates that the base station is not RA is EDTV." mobile station starts to send a signal of the common channel return line with an initial capacity after the expiration of a specified period of time TG. As shown in operations E4-E8 and E11-E14, after performing the initial regulatory power within the specified time TW mobile station sends the actual message. Because actions during operations E4-e and E11-E14 equivalent actions during operations A1-a10 in Fig.18A, corresponding descriptions are not given. After sending the message when the operation a mobile station releases the assigned shared channel operation E10.

When the operation F1 (Fig.20B), the base station receives from the mobile station a request signal channel and information about the message that the mobile station intends to send. When the operation F2 base station analyzes the received message to determine whether to allow the mobile station to use assigned a common channel for the reverse link. To allow the mobile station to use an assigned shared channel, the base station sends operation F3 command destination channel (i.e., the signal "ACK.") and related information about the channel assignment to the mobile station through the common channel is a straight line.

On the other hand, to allow the mobile station does not use the designated common channel, the base station when the operation F11 sends the signal "No ACK." mobile time TG (F4), taking into consideration the time during which the signal "ACK." reaches the mobile station. The process of adjusting the initial power and the actual message, operation, F5 - F9, which must be performed after the expiration of the time TG, equivalent procedures operations B1 - B5 in Fig. 18V. Thus, detailed descriptions are not given. Upon receipt of a message when the operation F9 base station releases the assigned shared channel operation F10.

Fig. 21A and 21B depict the sequence of operations when the operation of the base station and the mobile station, if the message is passed through the regulation of power assigned to the common channel for the reverse communication line according to another variant implementation of the present invention. In this embodiment, the base station informs the mobile station relative to the transmission time of the message during the initial regulatory power between the mobile station and the base station in the same manner as in the embodiment represented by a sequence of operations in Fig. 19A and 19B. Or, the mobile station sends the intended message in the time you set between the mobile station and the base station. However, in Finance power only for the scheduled shared channel, the channel request and the operation designation assigned to a common channel must precede them.

When the operation G1 (Fig.21A), the mobile station sends a request message to a channel of a base station for use assigned to a common channel. The mobile station can send information about the message that should be sent along with the request message channel. The base station then analyzes the information sent from the mobile station to determine whether to use assigned a common channel of the reverse link. If the use of a designated common channel of the reverse link, the mobile station sends a command to the destination channel and associated information of the destination channel as a response signal on the common channel is a straight line (see operations H1, H2, H3 and H12 in Fig.21B).

The mobile station receives the response signal when the operation G2 and determines when transactions G3, whether a signal in response to the confirmation signal "ACK." or negative confirmation signal "No ACK.". In this case, the signal "ACK." indicates that the base station allows the mobile station to use assigned a common channel of the reverse link, and signal "No ACK." indicates that the base CMA signal ACK. " mobile station performs the regulation of the initial power and then sends the intended message at a specified time or after receiving command messages from the base station, as shown in operations G4 - G13. Because the procedures in the operations G4 - G13 equivalent procedures in the operations C1 - C10 shown in Fig.19A, detailed descriptions are not given. After sending the message when the operation G13 mobile station releases the assigned shared channel operation G 14.

When operations H1 (Fig.21B), the base station receives from the mobile station a request signal channel and information about the message that the mobile station intends to send. During the operation of H2 base station analyzes the received message to determine whether to allow the mobile station to use assigned a common channel for the reverse link. To allow the mobile station to use an assigned shared channel, the base station sends during surgery H3 command destination channel (i.e., the signal "ACK.") and related information about the channel assignment to the mobile station through the common channel is a straight line.

On the other hand, in order not to allow the mobile station to use an assigned shared channel, the base station is the radio H3 base station waits for a specified time TG when the operation N4, taking into consideration the time during which the signal "ACK." reaches the mobile station. The process of adjusting the initial power and the actual messages when operations H5-H9, which must be performed after the expiration of the time TG, the equivalent procedures in the operations D1-D6 Fig. 19C. Thus, detailed descriptions are not given. Upon receipt of a message when the operation N10 base station releases the assigned shared channel operation H11.

Fig. 22A-25V illustrate several ways of transmitting messages according to the methods of the present invention. More specifically, a few examples of power control during the backup state after transmission of the message. In the drawings ZG denotes the signal header, which must be passed, and "Message" ("Message. ") refers to the message that must be transmitted.

Fig. 22A and 22B show the ways of conveying the intended message by separating it into several blocks messages of a given size. After sending one message block, the mobile station sends the next block of the message after receiving the signal "ACK." and re-sends the original message block after receiving the signal "No ACK." ness
during the backup state after sending one message block. Therefore, before sending the next block of the message or retransmission transmitted block of the message, the mobile station transmits a signal header for the regulation of the initial capacity.

Fig.22A depicts how a message is sent when the channel pilot signal is not used in the reverse link, and Fig.22B depicts how a message is sent when the channel pilot signal used in the reverse link. The structure and operation when the pilot channel signal is used or not used in the reverse link, have been described with reference to Fig.8A-14.

Fig. 23A and 23C depicts the ways of transmission of the intended message by separating it into several blocks messages of a given size in the same way as in Fig.22A and 22B. After sending one message block, the mobile station sends the next block of the message after receiving the signal "ACK." and re-sends the original message block after receiving the signal "No ACK." or after an unsuccessful reception of the signal "ACK." within a specified time. These methods send the message differ from the methods of Fig.22A and 22B so that the mobile stanziale even during pauses between transmitted blocks messages there is no need to send a header to control the initial power when transmitting the next block of the message or retransmission of transmitted message block. In particular, Fig.23C depicts the case when the channel pilot signal return line continuously transmit for power control of the reverse link, even during the time when there are no messages to send.

Fig. 24A and 24 show how the standby signal "ACK.", which should be adopted after sending at one time only the intended message. In these methods, the power does not regulate when waiting for signal "ACK.", which should be adopted. Therefore, when the signal "No ACK." was adopted or when the signal "ACK." not received within a specified time, the mobile station transmits a signal header for the regulation of the primary power prior to retransmission of the message. Fig.24A shows how a message is sent when the channel pilot signal is not used in the reverse link, and Fig.22B shows how a message is sent when the channel pilot signal is used in the reverse link.

Fig.25A and 25 show how the separate transmission of a given message multiple of the block is according to these methods, after an unsuccessful reception of the signal "ACK." within a specified time or after reception of a signal, "No ACK." mobile station shall retransmit the message block in one of two ways: the first way re-transmits only the message, for which passed the signal "No ACK.", and the message for which the signal "ACK." not received within a specified time; the second re-transmits all blocks of the message following the message block, which passed the signal "No ACK." or for which the signal "ACK." not received within a specified time. For example, assume that the signal "ACK." for the third block of the message is not received within a specified time, or the signal "No ACK." for the third block of the message is accepted during the transmission of the fifth message block. In this case, in the first method, retransmit only the third block of the message after the transmission of the fifth message block, and the second method retransmit the third to fifth blocks of the message after the transmission of the fifth message block. Fig.25A depicts how a message is sent when the channel pilot signal is not used in the reverse link, and Fig.25V depicts how a message is sent when the channel pilot signal is used in the reverse link.

In the present invention direct the total channel power control is proposed to control the power of the common channel of the reverse link. Direct common channel power control may also apoliticality for regulating the power of the control channels. In the system of IMT-2000 use dedicated control channels to improve the quality request the mobile station and ensure the effective data transfer. In General, there is no difficulty in the application of specialized control channel for the return line to the system. However, if specialized control channels direct communication line prescribed for the respective mobile stations, assign orthogonal codes for the corresponding control channels for direct communication line, this leads to the depletion of orthogonal codes.

To reduce the number of orthogonal codes assigned for dedicated control channels direct communication line, the present invention uses a shared control channel that can be shared by multiple mobile stations on the principle of shared time (or time-sharing). In a system using a shared control channel, the only orthogonal code determined for the shared control channel, and many subscribers transmit/receive information management using a shared control channel. In this case abonenta, as one channel, i.e. one orthogonal channel is used by multiple subscribers on the principle of shared time, it is difficult to convey the command to the power control for the reverse link. It's possible to send commands to the power control on the total channel power control, as when the power regulation for the common channel of the reverse link. Therefore, passing the command power control on a separate common channel power control, you can send the command to the power control without wasteful use of the orthogonal code when no data is available for transmission. In addition, in the new scheme, the total channel power control several subscribers send and receive their appropriate commands power control, together using the same orthogonal code.

It is therefore possible power control with a reduced number of orthogonal codes.

For a structure in which a base station simultaneously transmits the signal to the General control channel and the common signal channel power control to the mobile station, and structure, in which a mobile station simultaneously receives the two channels, can be the key power perform on a shared channel of the reverse link, the time required for access to the system is reduced and the system can transmit messages in the form of long packets. In addition, the initial power at the access to the system may be adjusted accordingly while minimizing the effects on the system. In addition, a new communication system mdcr transmits commands power control for multiple subscribers on a common channel power control using a single orthogonal code, thereby increasing the efficiency of the use of orthogonal codes. So you can send commands power control using a reduced number of orthogonal codes.

Although illustrated embodiments of the present invention is described with reference to the accompanying drawings, it should be clear that the invention is not limited to these precise variants of implementation and that various other changes and modifications can be implemented by professionals, without separation from the scope or the invention.


Claims

1. The method of controlling common channel return line connection in the base station communication systems, multiple access, code-division multiplexing (mdcr) consists in Mandu power control depending on the level of a received signal of the common channel return line for regulating the transmission power of the common channel of the reverse link, pseudorandom, choose the position in which the command power control is inserted into the common channel power control straight line, insert the command power control in a selected position of General control channel power direct communication line and transmits to the mobile station a command to the power regulation on the common control channel capacity.

2. The method according to p. 1, characterized in that the total reverse channel of the communication line is a common control channel reverse link.

3. The method according to p. 1, characterized in that the total channel return line connection is a channel accessibility.

4. The method of control of the shared feedback channel to the base station communication systems, multiple access, code-division multiplexing (mdcr), namely, that designate extend the code that you want to use for the shared channel feedback connection line to the mobile station, receive the signal transmitted from the mobile station assigned to the common channel of the reverse link, form a team power control depending on the level of a received signal assigned to a common channel return line for regulating the transmission power of the common channel is order in the total channel power control direct communication line, insert command power control in a selected position of General control channel power direct communication line and transmits to the mobile station a command to the power regulation on the common control channel capacity.

5. The method according to p. 4, characterized in that the base station receive the signal transmitted from the mobile station assigned to the common channel of the reverse link, using the designated extend the code.

6. The method according to p. 4, characterized in that the base station assign extend the code that you want to use for the shared channel of the reverse link, on request of the mobile station.

7. The method according to p. 4, characterized in that command power control transmit on a shared channel power control direct lines of communication, and the message that the base station sends the mobile station to assign extend code that you want to use for the shared channel of the reverse link includes information representing a long code that you want to use a mobile station for a shared channel of the reverse link.

8. The method according to p. 4, wherein to assign a common channel return line connection in the base station determines long is about on p. 5, characterized in that the base station receiving from the mobile station information representing the amount of data that must be transferred to a designated common channel.

10. The method according to p. 7, characterized in that the long code is a public long code generated according to the unique number of the mobile station.

11. The method according to p. 7, characterized in that the long code is prescribed in such a way that designate the separately-provided one of the long codes to prevent interference with shared channels return line connection to other mobile stations, and the assigned long code is not appointed again to other mobile stations, while the mobile station uses the assigned long code.

12. The method of controlling common channel return line connection in the base station communication systems, multiple access, code-division multiplexing (mdcr), namely, that receive the signal transmitted from the mobile station through the common channel of the reverse link, form a team power control depending on the signal level of the header and/or signal message received signal common channel return line for regulating modelirorvanie power is inserted into the common channel power control direct communication line, insert command power control in a selected position of General control channel power direct communication line and transmits to the mobile station a command to power control for controlling the transmission power of the common channel of the reverse link.

13. The method according to p. 12, characterized in that the base station receive the message signal from the mobile station after the initial capture through reception of the header within a specified time.

14. The method according to p. 12, characterized in that the base station informs the mobile station about the time of signal transmission of the message.

15. The method of controlling common channel return line connection in the base station communication systems, multiple access, code-division multiplexing (mdcr), namely, that receive the signal transmitted from the mobile station through the common channel of the reverse link, form a team power control depending on the signal level of the header and/or signal message received signal common channel return line for regulating the transmission power of the common channel of the reverse link, pseudorandom, choose position, which team power control stick in General to the Yu shared channel power control direct communication line and transmits to the mobile station a command to power control for controlling the transmission power of the common channel of the reverse link, moreover, from the base station to transmit a command to increase power to the mobile station to capture the specified signal.

16. The method of control of the shared channel feedback communication line in the communication system, multiple access, code-division multiplexing (mdcr), namely, that transmit from the base station a message shared channel for direct communication line, comprising expanding the code assigned to the common channel of the reverse link, as a General channel for direct communication line to assign extend code that you want to use for the shared channel of the reverse link, to the mobile station, take in the base station signal assigned to the General principles of the reverse link transmitted from the mobile station, form a team power control depending on the level of a received signal assigned to the common channel of the reverse link, pseudorandom, choose the position in which the command power control is inserted into the common channel power control straight line, insert the command power control in a selected position of General control channel power direct line of communication and is sent from the base station to the mobile station a command to control the power of the common channel return line connection of the mobile station.

17. The method according to p. 16, characterized in that it additionally accept extending the code that you want to use for the shared channel of the reverse link, the designated base station.

18. The method according to p. 16, wherein the signal is a header and/or message.

19. The method according to p. 18, characterized in that the transmit message from the mobile station to the base station after the transfer of title within a specified time.

20. The method according to p. 18, characterized in that the transmit message from the mobile station to the base station after receiving the information representing the transmission time of a message from the base station.

21. The method according to p. 16, characterized in that the stop transmission from the mobile station through the common channel of the reverse link, if the power accepted command of the power control below the threshold value.

22. The method according to p. 16, characterized in that the stop transmission of the mobile station on a shared channel of the reverse link, if a straight line is in poor condition.

23. The method according to p. 16, characterized in that the mobile station determines the initial transmission power of the shared channel feedback communication line based on a given formula: initial transmit power = (ass is abundant station determines the initial transmission power of the shared channel feedback communication line based on a given formula: initial transmit power = (a given constant) - (the power of receiving the pilot signal from the associated base station) [dB] .

25. The method of controlling common channel return line communication mobile station in the communication system, multiple access, code-division multiplexing (mdcr), namely, that transmit from the mobile station signal to the base station through the common channel of the reverse link, take in the mobile station a command control power common channel power control direct line of communication from the base station after transmission of the signal and regulate the mobile station transmit power of the common channel return line connection according to the command of the power control common control channel power is a straight line.

26. The method according to p. 25, wherein the transmit signal of the common channel from the mobile station to the base station using the assigned long code.

27. The method according to p. 25, wherein the common channel return line connection appoint request the mobile station.

28. The method according to p. 26, wherein the long code is a public long code defined by a unique user number.

29. The method according to p. 26, characterized in that one of the long codes used by other mabellene between the assigned long code and common channel return line connection to other mobile stations.

30. The method according to p. 27, characterized in that the mobile station information representing the amount of data that must be transmitted to the base station are assigned a common channel of the reverse link.

31. The transmission device on the common channel power control for base stations in the communication system, multiple access, code-division multiplexing (mdcr) containing a selector for receiving commands to control the power to be transmitted to many users, and multiplexing commands received power control, the controller time intervals to control the selector so that commands power control for the respective subscribers, issued from the selector, were pseudorandom, inserted in each group control the power and extend the modulator for the extension of the output signal of the selector by multiplying the output signal of the selector on the expanding sequence and transmitting the enhanced signal.

32. The transmission device on the common control channel capacity under item 31, wherein the controller time slots contains a lookup table for storing template switching time intervale power control.

33. The transmission device on the common channel power control on p. 31, characterized in that the total channel power control is used by many subscribers on the principle of time sharing.

34. The transmission device on the common channel power control on p. 31, characterized in that it further comprises a controller gain for the independent control of the gain of the corresponding commands power control.

35. The transmission device on the common channel power control on p. 34, characterized in that the controllers have independent gain amplification coefficients for the independent welfare gain for the total channel power control in accordance with the subscribers.

36. The transmission device on the common channel power control for base stations in the communication system, multiple access, code-division multiplexing (mdcr) containing a selector for receiving commands to control the power to be transmitted to many users, and multiplexing commands received power control that extends the modulator for the extension of the output signal of the selector by multiplying the output signal of the selector on widening polerowanie power selector for scrambling commands power control by multiplying the commands power control on the respective pseudorandom noise (PN) sequence assigned to the respective subscribers.

37. The transmission device on the common channel power control for base stations in the communication system, multiple access, code-division multiplexing (mdcr) containing the controller time slots intended for processing the signals to determine the position into which is inserted a command to control the power transmitted on the common channel power control, the selector for multiplexing the accepted command of the power control in accordance with the signal, is inserted in position, an orthogonal modulator for orthogonally modulating the output signal of the selector by multiplying the output signal of the selector on the orthogonal code for the shared control channel power and extend the modulator for the extension of the output signal of the orthogonal modulator expanding sequence and transmitting the enhanced signal.

38. The device according to p. 37, characterized in that it further comprises a scrambler for scrambling taken respectively and passing in a selector.

39. The device is a base station for communication systems, multiple access, code-division multiplexing (mdcr) containing the transmitter common channel power control for the General channel power control to regulate the conveying capacity of the common channel return line connection for multiple subscribers and command transmission power control for the respective subscribers by the total channel power control and at least one channel of the transmitter of the subscriber data and control commands to multiple subscribers in a straight line, and channel transmitter of the subscriber includes an encoder for encoding data on the channel of the subscriber in the character data, the controller position punching for forming the control signal is a pseudo-random position of the punching and punch for receiving sequential character image data issued from the encoder, and punching the character data in accordance with the control signal the position of the perforation.

40. The base station device according to p. 39, characterized in that the transmitter common channel power control contains a selector for receiving commands power control, which should be before the PR for the extension of the output signal of the selector by multiplying the output signal of the selector on the expanding sequence and subsequent transfer of the enhanced signal.

41. The base station device according to p. 40, characterized in that it further comprises a controller time intervals to control the selector so that commands power control issued from the selector to the appropriate subscribers are located in the respective groups power control in random positions.

42. The base station device according to p. 41, characterized in that the total channel power control uses many subscribers on the principle of time sharing.

43. The base station device according to p. 41, characterized in that the transmitter common channel power control uses a single orthogonal code.

44. The device of the base station under item 41, wherein the channel of the transmitter of the subscriber includes an encoder for encoding data on the channel of the subscriber in the character data and the block orthogonal expansion for orthogonal expansion coded character data of the orthogonal code.

45. The method of sending commands power control to power control the reverse lines of communication in a base station for communication systems, multiple access, code-division multiplexing (mdcr), namely, that form the signal on the modelling power, multiplexer accepted command of the power control according to the position in which it is inserted, perform orthogonal modulation of the multiplexed signal of the orthogonal code for the shared control channel power and extend orthogonally modulated signal is an expanding sequence and transmit the enhanced signal.

46. The method according to p. 45, characterized in that it further scrambling commands power control respective pseudorandom noise (PN) sequences assigned to the respective subscribers, before the multiplexing.

47. The method according to p. 45, characterized in that it further scrambling commands power control multiple subscribers pseudo-random sequences of the users, respectively.

48. The method according to p. 45, characterized in that when the multiplexing commands power control for the respective subscribers multiplexer so that commands power control are in random positions in the respective groups power control.

49. The method according to p. 48, wherein the additional control gain is sustained fashion modulate orthogonal multiplexed command to regulate the output of the orthogonal code for the shared control channel capacity.

51. Channel receiver for a mobile station in the communication system, multiple access, code-division multiplexing (mdcr) containing the compressor unit to compress the extended commands of the power regulation, adopted from the base station through the common channel power control, by multiplying the extended commands control the power to extend the sequence, the selector position for signal selection position, and means selectively issuing commands received power control in accordance with the select signal position.

52. Channel receiving device for a mobile station in the communication system, multiple access, code-division multiplexing (mdcr), containing a compressor unit for compressing the received enhanced signal, the first driver orthogonal code to form a first orthogonal code for the character demodulation of the data channel of the subscriber from the compressed signal, the second driver orthogonal code to form a second orthogonal code for demodulation commands power control in the compressed signal received from the base station through the common channel power control, the first orthogonal demodulator for orthogonalities orthogonal code, the second orthogonal demodulator for orthogonal demodulation compressed signal by multiplying the compressed signal at the output of the second shaper orthogonal code selector position for signal selection position, the first switch to supply the first or second orthogonal code to the first or second orthogonal demodulator in accordance with the select signal position and a second switch connected to receive the output signals of the first and second orthogonal demodulators to transfer character data channel of the subscriber, issued from the first orthogonal demodulator, integrator, or data transfer commands control the power delivered from the second orthogonal demodulator, the unifier commands power control in accordance with the select signal position.

53. Channel receiving device for p. 52, characterized in that the signal select is used to detect the time interval in the command channel power control, in which the insert command power control for the corresponding channel of the subscriber.

54. The method of receiving data channel in a mobile station system multiple access, code the t of multiple base stations on a common channel power control, compress commands received power control and selectively detects a short commands power control on the basis of time slots previously assigned to the respective subscribers.

55. The method according to p. 54, characterized in that the compression compresses the received signal an expanding sequence and demodulated compressed signal orthogonal code.

56. Channel receiving device for a mobile station in the system, multiple access, code-division multiplexing (mdcr) containing the compressor unit to compress the extended commands control the power received from the base station through the common channel power control, the power control common channel return line by multiplying the received commands power control to extend the sequence, the selector position for signal selection position, the detector commands power control for receiving compressed commands power control and detection commands received power control in accordance with the select signal of the position controller gain power to control the transmission power of the common channel return line connection when using d the m the signal selection position used to determine the time interval in the command channel power control, in which the insert command power control for the corresponding channel of the subscriber.

58. The method of control of the shared channel feedback communication line in the communication system, multiple access, code-division multiplexing (mdcr), namely, that take in the base station signal transmitted from the mobile station on a shared channel of the reverse link, designate the base station extends the code that you want to use for the scheduled shared channel return line connection to the mobile station, and transmits the assigned code extends to the mobile station and transmitted to the mobile station a command to the power regulation on the common channel power control direct communication line to control the transmission power assigned to the common channel of the reverse link.

59. The method according to p. 58, wherein the signal is a signal of a header and/or message signal.

60. The method according to p. 59, characterized in that the base station receive the message signal from the mobile station after the initial capture through signal header for ass

 

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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.

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1 cl, 7 dwg, 1 tbl

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