The mode of transmission of the preamble of the access channel in a mobile communication system and device for its implementation

 

(57) Abstract:

The mobile station device and the way in which the preamble generator intermittently generates a preamble signal, which is transmitted in the interval of the preamble before the transmission interval of the message of the reverse access channel, and the transmitter is designed to expand and the modulation signal of the preamble received from the generator of the preamble, and transmit it to the base station, which is achievable technical result. 2 C. and 29 C.p. f-crystals, 11 ill.

1. The technical field to which the invention relates

The invention relates generally to mobile communication systems and more specifically relates to a method of transmitting a preamble channel access in a mobile communication system, multiple access, code-division multiplexing (mdcr).

Art

Used in the present description, the term "conduit" refers to all channels, in which the transmission of the transmitting party making the request on the receiving side communication for these channels. That is, the term "conduit" refers to all channels, which before sending the message signal, known as the "preamble". Used in this pisaniello mobile communication. For example, the access channels include a reverse access channel (OKD), the reverse common control channel (OOKU) and reverse dedicated (specialized) channel access (OWCD).

For error-free reception of a signal from the transmitting side receiving side must be synchronized with the signal sent from the transmitting side. Entering the synchronism is a very important factor, which determines the throughput of the communication system mdcr.

In the mobile communication system mobile station is in synchronism with the signal received from the base station, in accordance with a given procedure occurrence in synchronism running since power on the mobile station. Mobile station supports synchronization through the process of tracking signals, which continues until the power is turned off mobile station, so that at any moment it was possible to resume the communication with the base station. In the procedure of entering in synchronism used in the mobile station uses the reference signal in the form of a pilot channel signal. This reference signal is transmitted on a certain mobile station located in the area of the cell that controls, since the reference signal is transmitted to some, an undefined mobile station. Since this reference signal is predetermined in accordance with a specific agreement between the base station and mobile station, a mobile station can whenever the power supply is enabled to receive signals from the base station by tracking this reference signal and joining with him in synchronism.

In contrast to the above base station, the procedure of entering into synchronism at the time of power-on mobile station does not start. The reason for this is that the mobile station disables the transmission of unwanted signals and establishes a connection for transmission only when you receive a message or data to be transferred, which minimizes power consumption in the mobile station and reduces interference at the base station. This procedure of establishing a connection includes the procedure of entering in synchronism, whereby the base station is in synchronism with the signal received from the mobile station.

For effective entry into synchronism mobile station transmits the preamble PA, shown in Fig.2, to the base station within a certain vremenu, predetermined between the base station and mobile station. In most mobile communication systems the beginning of the transmission interval of the preamble is determined by a fixed system parameter, or may be selected by the mobile station on the basis of the available transmission time defined by the visual information in the system. Here the visual information is obtained from the base station signal received after power up of the mobile station. The receiver in the mobile station detects a preamble at the beginning of all intervals of the transmission of the preamble, estimated based on visual information systems, and is in synchronism. After detection of the preamble, the base station performs the procedure of entering into synchronism and tracking signals for the reception of the message following the preamble.

In Fig. 1 presents the schematic of the transmitter of the access channel to the mobile station in accordance with the prior art.

Please refer to Fig. 1, where the generator 120 of the preamble forms the preamble, which is shown under reference position 210 in Fig.2. The amplifier 122 increases the transmit power for the reverse pilot channel signal (OCRP) on the interval of the preamble, making it higher than the capacity of ctor 124 is used to select the interval of the preamble and the transmission interval of the message. The selector 124 selects the output signal of the amplifier 122 at the beginning of the interval of the preamble and selects the non-amplified signal at the end of the interval of the preamble. This operation of the selector 124 is executed once for each channel access. But if amplifier 122 converts the gain with a value of "Ku" to the value "1" in the interval of the preamble and the transmission interval of the message, then selectively use the selector 124 is not necessary. That is, the amplifier 122 sets the gain is equal to "Ku" at the beginning of the interval of the preamble, and sets the coefficient equal to "1" at the end of the interval of the preamble. The gain of the amplifier 122 is mounted within one interval of the access channel only once. The mixer 110 multiplies the orthogonal codes(+1, -1, +1, -1) the symbol transmission for channel access in order to distinguish the access channel reverse channel. Channel access interval of the preamble transmission does not occur, and transmission to the base station runs from the start of the interval capsules messages, i.e. after the end of the interval of the preamble. The amplifier 130 determines the ratio of the transmission power of the reverse pilot channel signal to the transmission power of the channel access interval capsules messages. Included is umowy common-mode (ECP) and pseudotumour quadrature (SKP) sequence. Among the signals, extensible integrated expander 140, a valid signal is supplied to the filter 150, and the imaginary signal is supplied to the filter 152. Filters 150 and 152 are filters that generate pulses for signal transmission. Amplifiers 160 and 162 amplify the output signals of the filters 150 and 152 to a level that can be transmitted via the antenna. The mixers 170 and 172 multiply the output signals of the amplifiers 160 and 162 on the carrier signal and convert them into signals of the band of radio frequencies (RF). The Converter 180 phase /2 supports the phase difference between the carrier signal multiplied by in-phase (C) channel, and the carrier signal multiplied by quadrature (K) channel 90o. A combiner 190 combines the output signals of the mixers 170 and 172, and outputs the combined signals to the antenna.

Now let us turn to Fig.2, which shows an example of the structure of the signal transmitted on the access channel to the mobile station in accordance with the prior art.

As is shown in Fig.2, the mobile station transmits the preamble 210 to the base station within a certain period of time (e.g., N1,25 MS) before the interval capsules messages. Then the mobile station sends a signal on the reverse pilot channel signal with mono the pilot signal can be formed identical to the generator sequence or a different sequence generators. Reverse link pilot signal used for estimating a reverse link or procedures for tracking signals and may include information about direct pilot signal. The reason preamble 210 is transmitted with a higher transmit power than for the reverse pilot channel signal, is that it facilitates the detection of the preamble and the occurrence in synchronism with the base station. That is, the higher the transmit power of the preamble 210 is used to increase the probability of detection and decrease the probability of missing the preamble and the probability of false alarm. Capsule 280 message contains a message back channel and data to be reported to the base station.

The problem with the known method of transmission on the access channel, is that the transmission interval of the preamble is relatively large and the preamble is transmitted with relatively high transmission power, although a message that requires no transmission, resulting in increased interference in the reverse link. Therefore, there is a need in a way that minimizes interference in the reverse link channels, and increase the probability of detection of the preamble.

Sumney channel access in a communication system mdcr, where the mobile station transmits a preamble to the base station intermittently, thereby reducing interference in the reverse link channels and power.

Another objective of the present invention is to provide a device and method for the transmission of the preamble of the access channel in the communication system mdcr where the transmission of the preamble and the message of the access channel is determined in accordance with the adopted whether the mobile station information from the base station about the detection of the preamble, when the intermittent transmission of the preamble for channel access.

To achieve the above objectives of the present invention, the mobile station device includes a preamble generator for intermittent signal of the preamble, which is transmitted during the interval of the preamble before the transmission interval of the message of the reverse access channel, and a transmitter for expansion and the modulation signal of the preamble received from the preamble generator, and transmission.

List of drawings

The above and other objectives, features and advantages of the present invention are evident from the following detailed description, given with reference to the accompanying drawings, in which identical reference positions of the respective mobile station according to the prior art;

Fig. 2 is a diagram illustrating the transmission of signals over the channel access in accordance with the prior art;

Fig. 3 is a structural diagram of the transmitter of the access channel to the mobile station in accordance with the embodiment of the present invention;

Fig. 4 is a diagram illustrating the transmission of signals over the channel access in accordance with the embodiment of the present invention;

Fig. 5 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention;

Fig. 6 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention;

Fig. 7 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention;

Fig. 8 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention;

Fig. 9 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention;

Fig.10 is a diagram of illustrierten;

Fig.11 is a diagram illustrating the transmission of signals on the access channel in accordance with another embodiment of the present invention.

Detailed description the preferred option of carrying out the invention

The present invention is intended for use in a mobile telecommunications system mdcr. Preferred embodiments of the present invention are given only as examples and do not limit the scope of the present invention.

In the following description the same reference position denote the same components, as known functions or structures are not described in detail so as not to hinder the understanding of the invention with unnecessary detail.

In Fig.3 shows a transmitter of the access channel to the mobile station according to a variant implementation of the present invention.

Presented on Fig.3, the controller 326 of the transmission of the preamble and the valve element 328 in the generator 320 of the preamble are used for intermittent transmission of the preamble. The parameters for this procedure, the bandwidth is specified as a system parameter in accordance with which the mobile station intermittently transmits the preamble. System PA is p. In the interval of the preamble, the selector 124 selects the output signal of the amplifier 122, and the controller 326 of the transmission of the preamble includes on/off valve element 328 in accordance with the settings of the bandwidth. The preamble is transmitted, when the valve element 328 is enabled, and Vice versa preamble is not transmitted, when the valve element 328 is turned off. The preamble can be transmitted with higher power than the power used in the known method, where the transmission of the preamble is not interrupted. The increment of the transmission power may be a system parameter, which is summed with the initial transmit power, and this parameter is calculated by the system with control power on open loop. At the end of the interval of the preamble and the beginning of the interval capsule message selector 124 selects a lower output signal of the amplifier 122 to select a reverse link pilot signal. Meanwhile, the controller 326 of the transmission of the preamble supports the valve element 328 in an enabled state until the end of the transmission on the access channel, allowing thereby to perform continuous transmission of the reverse pilot channel signal.

After transmission of the preamble to the interval of the preamble of controllably, received from the base station, and terminates unnecessary transmission of the preamble. To minimize latency, information about the detection of the preamble, the base station transmits information about the detected preamble to the mobile station without using the encoding channels or by using the encoding channels with a minimum of delay, for example, block coding. Having received from the base station, information about the detection of the preamble, the controller 326 of the transmission of the preamble to the mobile station issues a control signal to the valve element 328 to interrupt the transmission of the preamble, which is scheduled for the rest of the interval. Not having information about the detection of the preamble, the controller 326 of the transmission of the preamble continues to transmit the preamble, as it is planned for the rest of the interval, and checks, is made as to whether information about the detection of the preamble. This procedure is repeated until the length of the preamble.

The mixer 110 multiplies the orthogonal codes(+1, -1, +1, -1) character transfer for channel access in order to distinguish the access channel from the reverse link channel. The transmission on the channel access is from the beginning of the interval capsules messages, i.e. at the end of the interval of the preamble, and Prieur is ignal to transmit power channel access interval capsules messages. Integrated expander 140 receives the signal of the reverse channel pilot signal, channel access and sequence RLS and SKP comprehensive enhanced signal. Among the signals that are extended in the complex expander 140, a valid signal is supplied to the filter 150, and the imaginary signal is supplied to the filter 152. Filters 150 and 152 are filters that generate pulses for signal transmission. Amplifiers 160 and 162 amplify the output signals of the filters 150 and 152 to a level that can be transmitted via the antenna. The mixers 170 and 172 multiply the output signals of the amplifiers 160 and 162 on the carrier signal and convert them into signals band RF. The Converter 180 phase /2 supports the phase difference between the carrier signal multiplied by in-phase (C) channel, and the carrier signal multiplied by quadrature (K) channel 90o. A combiner 190 combines the output signals of the mixers 170 and 172, and outputs the combined signals to the antenna.

In Fig. 4-12 presents examples of signal transmission on the access channel in accordance with the variants of implementation of the present invention.

In Fig.4 shows a chart for a method of signal transmission of the preamble in the first part of the interval of the preamble. Please see the Ohm, when the preamble is not transmitted, is the interval Kzt42. The preamble is transmitted with a capacity of 412 transmission, which is higher than normal power 410 transmission of the preamble to the value of R. it is Assumed that the structure of the interval of the preamble is the same as in the known method of transmission of the preamble. Although this takes into account the increment of the transmission power P, however, can be distinguished for the interval of the preamble relatively low energy by regulating relations Kzt41 to Kzt42 that reduces interference on the reverse link channels. The base station detects the preamble during interval included in the transmission interval of the preamble Kzt41, based on the evaluation of the time interval during which the mobile station transmits the preamble. Detection of the preamble is performed by using a correlator and matched filter that is typically used in known systems. In the case of the preamble correlator can be detected in real time or after storing the signals received in the area of the estimated interval Kzt41.

In Fig.5 is a diagram for a method of signal transmission of the preamble for the first and last parts of the interval of the preamble. Please refer to Fig.5, where in the whole interval of the preamble(T+Kzt52) Intel Kzt52. After the transmission interval of the preamble Kzt51 and interval Kzt52, when the preamble is not transmitted, the preamble is transmitted again during the interval Kzt51 immediately before the interval capsules messages. The preamble is transmitted with a capacity of 512 (522) transmission, which is higher than normal power 510 (520) transmission of the preamble to the value of R. it is Assumed that the structure of the interval of the preamble is the same as in the known method of transmission of the preamble. Although this takes into account the increment of the transmission power P, however, can be distinguished for the interval of the preamble relatively low energy by regulating relations Kzt51 to Kzt52 that reduces interference on the reverse link channels. The base station detects the preamble during interval included in the transmission interval of the preamble Kzt51, based on the evaluation of the time interval during which the mobile station transmits the preamble. Detection of the preamble and the entry into synchronism can be achieved the same way as was set forth above with reference to Fig.4.

In Fig.6 is a diagram for a method to periodically transmit a preamble interruptibly. Please refer to Fig.6, where the interval of the preamble transmission interval of the preamble is the interval Kzt61 and interveinal is not transmitted, periodically repeated until the end of the interval of the preamble. The preamble can be transmitted again during the interval Kzt61 immediately before the interval capsules messages. The interval of the preamble is set to the value (Kzt61+T62)N+T61 or (T61+T62)N, where N is an integer equal to or greater than zero. Here the capacity of 612 (622, 632, 642) transmission of the preamble higher than normal power 610 (620, 630, 640) transmission of the preamble to the value of R. it is Assumed that the structure of the interval of the preamble is the same as in the known method of transmission of the preamble. Although this takes into account the increment of the transmission power P, however, can be distinguished for the interval of the preamble relatively low energy by regulating relations Kzt61 to T62, which reduces interference on the reverse link channels. The base station detects the preamble during interval included in the transmission interval of the preamble Kzt61 based on the evaluation of the time interval during which the mobile station transmits the preamble. Detection of the preamble and the entry into synchronism can be achieved in the same manner as set forth above with reference to Fig.4.

In the following two ways as an expanded concept of the transmission of the preamble for all access channels, formulated enter the from and included in synchronism in the system, where the interval of the preamble is fixed. The base station sends to the mobile station information about the detection of the preamble and the occurrence in synchronism to prevent transmission of the mobile station, the preamble to the remaining part of the interval of the preamble, as soon as this is not necessary. Not having received from the base station, information about the occurrence in synchronism, the mobile station during the transmission interval of the preamble in the remaining part of the interval of the preamble transmit the preamble with transmission power increased by a specified system parameter. If before the end of the interval of the preamble is no information about the occurrence in synchronism received from the base station, the mobile station decides that the base station entering the synchronism has not occurred, and does not transmit to the base station a message channel access.

In the second method, the base station detects the preamble and is in synchronism in the system, where the interval of the preamble is variable. Having received from the base station, information about the occurrence in synchronism, a mobile station shortens the interval of the preamble and transmits to the base station a message channel access. In a system where the interval of the preamble is re is in synchronism on the interval of the preamble, given the system parameter, the mobile station transmits to the base station preamble with power increased on the system parameter, during the transmission interval of the preamble in the remaining part of the interval of the preamble. If before the end of the interval of the preamble is no information about the occurrence in synchronism received from the base station, the mobile station decides that the base station entering the synchronism has not occurred, and does not transmit to the base station a message channel access.

Further disclosed a case where the preamble is transmitted periodically intermittent manner, and uses the concept of feedback.

In Fig.6-8 presents diagrams for methods of transmission of the preamble with breaks. In Fig. 6 shows the case where the transmission of the preamble, the concept of feedback is not used. In Fig.7 and 8 show the cases when the transmission of the preamble uses the concept of feedback at a fixed interval of the preamble and the alternating interval of the preamble, respectively. In Fig. 6-8 the transmission interval of the preamble and the interval when the preamble is not transmitted in the interval of the preamble are common to all mobile stations and are defined by the system parameter.

Next will be described a case where the signals of the preamble is transmitted at intervals of transmission of the preamble allocated to a specific mobile station during the interval of the preamble.

In Fig. 9 shows the case where the transmission of the preamble does not use the concept of feedback. In Fig.10 and 11 shows the cases when the concept of feedback is used in the transmission of the preamble at a fixed interval of the preamble and variable interval of the preamble, respectively. Here the corresponding mobile station transmits a preamble to a base station on its own dedicated intervals of transmission of the preamble. This allows to reduce the interference of the reverse link channels, which would otherwise occur under the influence of different mobile stations in concurrent request on their part in connection with this base station.

Contact The A. Mobile station And transmits a preamble on the intervals P1, P3, P7, P10, R and P16. The mobile station transmits a preamble on the intervals P2, P5, P7, P9, R and R. On the interval P7 noise may increase due to the transmission of the preamble two mobile stations, interference on other channels on other intervals are reduced. That is, there can be reduced the ratio of the peak transmit power of the preamble to the average transmission power of the preamble.

Please refer to Fig.10, where the mobile station And transmits the preamble signal on the allocated transmission intervals P1, P3, P7, P10, R and P16 and checks received from the base station, information about the occurrence in synchronism. As shown in this figure, a mobile station And transmits the preamble signal in the interval P1 and checks on the interval P2 received from the base station, information about the occurrence in synchronism. Not having received information about occurrence in synchronism, a mobile station And transmits on the interval P3 of the signal preamble and checks at subsequent intervals P4, P5 and P6, where the preamble is not transmitted, received from the base station, information about the occurrence in synchronism. After receiving information about the occurrence in synchronism, a mobile station And no longer transmits the preamble and sends a message channel, the station transmits the signals of the preamble on the selected intervals of the transmission of the preamble in the same way, which is described in connection with Fig.10. However, after receiving information about the occurrence in synchronism, the mobile station aborts the transmission of the preamble and simultaneously sends a message to the access channel to the base station in the next transmission interval of the preamble. Here, the transmit power of the preamble is increased by X each time the mobile station transmits the preamble signal. This is done to facilitate entry into synchronism at the base station. The increment of the transmission power X is set as a system parameter. Alternatively, to achieve the same effect, as shown in Fig.11, the preamble is transmitted on a single transmission interval of the preamble, fixed inside the interval of the preamble, since the changing interval of the preamble.

As described above, the present invention has the following advantages compared with the known method of transmission of the preamble. First, during transmission on the access channel to the base station, the mobile station transmits the preamble with breaks, preventing the use of the mobile station redundant power transmission for detection of the preamble and entering into synchronism. This reduces unnecessary power consumption in the mobile station, when the time of the data interval of the preamble, the base station sends to the mobile station information about the detection of the preamble and the occurrence in synchronism, so, the mobile station suspends transmission of the preamble to the base station. This reduces interference in the reverse link channels and transmit power at the mobile station, thereby increasing the waiting time of the mobile station. Third, in a system with a variable interval of the preamble, the base station sends to the mobile station information about the detection of the preamble and the occurrence in synchronism for variable shortening of the interval of the preamble and provides an earlier message transmission. This allows the mobile station to interrupt the transmission of the preamble and reduce interference in the reverse link channels and transmit power. As a result, the standby time of the mobile station can be extended.

Although the present invention disclosed in the specific example of the preferred variants of its implementation for specialists in this field of technology, it is obvious that it can be made various changes in form and detail, without going beyond the nature and scope of the invention as they are described in the following claims.

1. The device is a mobile station for transmission of the signal preamble that is transmitted within a predetermined interval preamble of the preamble signal during the interval of the preamble, a message generator to generate a message back channel after the interval of the preamble and the transmitter for the extension and modulation of the signal in the preamble received from the generator of the preamble, and the backward channel messages from the message generator and transfer them to the base station.

2. The mobile station device under item 1, in which the preamble generator generates a pilot signal of the backward channel in the interval, which form the message of the backward channel.

3. The mobile station device under item 1, in which the preamble generator comprises a generator for generating the signal of the preamble, the controller signal transmission of the preamble to generate a control signal for transmission of the preamble signal in accordance with the specified parameter and a valve element for transmission of the preamble signal from the generator in accordance with a control signal from the controller signal transmission of the preamble for the formation of a discontinuous signal of the preamble.

4. The mobile station device under item 1, in which the interval of the preamble includes a repeating cycle of the transmission interval of the preamble and the interval when there is no transmission of the preamble, and the preamble generator generates a signal of the preamble in those who have a preamble generates a signal of the preamble so, the signal of the preamble associated with the beginning of the message return channel.

6. The mobile station device according to p. 4, in which the preamble generator generates the preamble signal using the transmit power is increased to a predetermined value.

7. The mobile station device according to p. 4, in which the preamble generator stops the formation of the preamble signal after the reception of the mobile station from the base station information about the capture of sync.

8. The mobile station device according to p. 4, in which the signal generator of the preamble stops the formation of the preamble signal and the mobile station immediately transmits a message back channel after reception of the mobile station from the base station signal capture synchronization.

9. The mobile station device according to p. 7, in which information about joining the synchronism is a non-encrypted data.

10. The mobile station device according to p. 4, in which a mobile station determines whether adopted or not the information on the seizure of the synchronization signal from the base station to send a signal to the mobile station, and the signal generator of the preamble increases and sets the power level for signal transmission Preah.

11. The mobile station device under item 1, in which the preamble generator generates a preamble signal in a predetermined initial portion of the interval of the preamble.

12. The mobile station device under item 1, in which the preamble generator generates a preamble signal in a pre-defined initial and final parts of the interval of the preamble.

13. The mobile station device according to p. 4, in which the transmission interval of the preamble and the interval during which no transmission of the preamble, are pre-defined and the signal generator of the preamble generates a preamble signal during the intervals of transmission of the preamble, exclusively assigned to the mobile station from among the available interval of the preamble.

14. The mobile station device according to p. 4, in which the signal generator of the preamble defines the number of the transmission interval of the preamble and the interval during which no transmission of the preamble, based on the parameter received from the base station.

15. The transfer method in the mobile station device to transmit the preamble signal transmitted within a predetermined interval of the preamble to send the message back channel, and the method comprises the steps: forming detect the preamble, enhance and modulate the preamble signal received from the signal generator of the preamble and the message return path from the generator messages and transmit them to the base station.

16. The method according to p. 15, in which the pilot signal return path is formed during the interval in which form the message of the backward channel.

17. The method according to p. 15, in which the phase of the signal of the preamble includes the sub-steps: the formation of the preamble signal, generate a control signal for transmission of the preamble signal in accordance with the specified parameter and pass the signal of the preamble in accordance with the control signal for forming an intermittent signal of the preamble.

18. The method according to p. 15, in which the interval of the preamble includes a repeating cycle of the transmission interval of the preamble and the interval when there is no transmission of the preamble, and the preamble signal is formed in the transmission interval of the preamble.

19. The method according to p. 18, in which the preamble signal is formed in the interval of the preamble immediately before the transmission interval of the message channel access and transmission of the preamble provide at the end of the interval of the preamble.

20. The method according to p. 18, in which the preamble signal f is a torus signal preamble stop when receiving from the base station information about the occurrence in synchronism.

22. The method according to p. 18, in which the mobile station shortens the interval of the preamble and immediately transmits a message channel access, having received from the base station, information about the occurrence in synchronism.

23. The method according to p. 21, in which information about joining the synchronism is a non-encrypted data.

24. The method according to p. 18, in which a mobile station determines whether accepted or not from the base station information about the occurrence in synchronism for signal transmission of the mobile station, the preamble generator increases and sets the power level of the transmission signal of the preamble in the next transmission interval of the preamble, if the information about the occurrence in synchronism not accepted..

25. The method according to p. 15, in which the preamble signal is formed in a predetermined part of the interval of the preamble.

26. The method according to p. 15, in which the preamble signal is formed at a predetermined initial and final parts of the interval of the preamble.

27. The method according to p. 18, in which the transmission interval of the preamble and the interval at which the preamble is not passed, are predefined and the preamble signal shape during the time intervals of transmission of the preamble, exclusively assigned to the mobile station from on the transmission interval of the preamble and the interval when there is no transmission of the preamble, is determined on the basis of the parameter received from the base station.

29. The mobile station device under item 1, in which the reverse channel is a reverse access channel.

30. The mobile station device under item 1, in which the reverse channel is a reverse control channel.

31. The mobile station device under item 1, in which the reverse channel is a reverse dedicated channel access.

 

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1 cl, 1 dwg

FIELD: radio communications.

SUBSTANCE: in known transmitter with code division of channels (IS-95 standard), new elements are additionally introduced, namely: transmitter circuit additionally features P orthogonal code generators, (N+K+J+1) signal spectrum generator, P channel signal adders, channel group signal adder, and each information channels features a divider, second encoder, interlacing device and second symbol compressor, each call channel features divider, second coder and interlacing device and appropriate connections between them for creation of new signal code structure and of a form of code compression of channels.

EFFECT: more than 3 times increased spectral efficiency of communication system.

5 dwg

FIELD: methods for assigning Walsh space.

SUBSTANCE: in base station and mobile stations a list of Walsh functions is contained. Walsh space pointer is transferred to point at which exactly Walsh functions from the list are used for realizing communication. Walsh space pointer is corrected according to available dynamically changing transmission power, or according to usage of Walsh functions in base station.

EFFECT: assignment of Walsh space for efficient distribution of Walsh space among different users, while minimizing usage of system resources for its distribution.

10 cl, 12 dwg, 5 tbl

FIELD: wireless mobile communication system, in particular, methods and systems for transmitting complex symbols with usage of transmission code matrix.

SUBSTANCE: in accordance to the invention, transmission code matrix is generated with usage of transformed orthogonal codes in such a way, that the code is resistant to static channel characteristics and operates efficiently both in Rician channels and in (correlated) Rayleigh channels. Also, invention provides for high speed transmission of symbols with usage of several transmitting antennas and one or more receiving antennas.

EFFECT: invention simultaneously ensures high order of diversion and high speed of symbol or data transmission.

6 cl, 3 dwg

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