Method and device for controlling potentially strobed signal in radio communication device

FIELD: radio engineering.

SUBSTANCE: mobile station supports counter of serial bad frames, C1, and counter of serial good frames, C2. at the beginning of call C1 and C2 are set to zero value. For each received frame mobile station determines, whether the frame is good, bad or empty. If the frame is good, than C1 is dropped to zero value, and C2 is increased by one unit. If the frame is bad, than C1 is increased by one unit, and C2 is dropped to zero value. If received frame is empty, than C1 and C2 stay unchanged. When C1 reaches threshold value, T1, mobile station blocks its transmitter. Accordingly, if C2 reaches threshold value, T2, then mobile station activates its transmitter again.

EFFECT: higher efficiency.

3 cl, 3 dwg

 

The technical field to which the invention relates.

The present invention relates to communication. More specifically the present invention relates to a new and improved method and device for monitoring the operation of potentially strobirovaniya channel.

The level of technology

Industry Association of telecommunications has developed a standard for communication systems, multiple access, code-division multiplexing (mdcr) in the intermediate standard FP-95A (IS-95A), called "Standard compatibility base station and mobile station for dual-mode wideband cellular communication system with spread spectrum" (defined here as PS-95). Systems PS-95 mobile station controls the power of its transmission by means of a combination of power control in open circuit and closed circuit. When the control power circuit open mobile station measures adopted by the signal strength of a direct line of communication from the serving base station and adjusts the transmit power on the reverse link lines in accordance with this measurement. When power control in a closed circuit serving base station measures the power transmission from the mobile station on the basis of this measure sends a series of commands to increase/decrease the power of the mobile station, which in response interviewer is ciruit their transmission. System power control using the combined benefits of power control in a closed circuit and open circuit, described in detail in U.S. patent No. 5056109 called "Method and apparatus for controlling transmit power in a cellular telephone system, mobile communication MTCR".

According to PS-95 during a call from the mobile station requires monitoring of forward link traffic. When the mobile station receives twelve (N2m) consecutive bad frames from the mobile station requires the blocking of the transmitter so that it does not create interference on the reverse link. Accordingly, if the mobile station receives two (N3m) consecutive good frames, it should re-activate your transmitter. Also, the mobile station maintains a timer fading. First timer fading is activated during activation of the mobile station of its transmitter at the beginning of the call, and it is reset at five (T5m) seconds each time, when the direct channel traffic are two (N3m) consecutive good frames. At the expiration of a timer fading mobile station is blocking your transmitter, announces the loss of forward link traffic and terminates the call.

The international telecommunication Union has recently requested the filing of documents by means proposed to provide the treatment on the radio channels of high-speed data services and high-quality speech. The first part of these proposals issued by the industry Association telecommunications and is called "Possible deals on radio access technologies MDCR ITU-R" (called here as MDCR). According MDCR equivalents forward link traffic in the PS-95 are straight main channel (R-OK) and direct dedicated control channel (P-CMS). Transmitted on these channels data frames in length can be 20 or 5 MS. For P-OK frame (20 or 5 MS) is transmitted in 20 MS intervals, aligned relative to the start of system time mdcr. For P-SCU transfer can be intermittent, so a 20 MS interval, aligned with the system time mdcr, the data frame may not be transmitted.

Using methods of modulation, multiple access, code-division multiplexing (mdcr) is one of several ways to facilitate communications in which a large number of users in the system. In the technique known to other multiple access methods used in communication systems, such as multiple access with time division multiplexing (mdvr) and multiple access frequency division multiple access (FDMA equipment). However, for communication systems, multiple access method modulation spread spectrum mdcr has significant advantages over these methods modulational ways mdcr in the communication system, multiple access is described in U.S. patent No. 4901307, called "communication System multiple access spread spectrum using satellite or terrestrial repeaters". Additionally, the use of methods mdcr in the communication system, multiple access is described in U.S. patent No. 5103459 called "System and method for generating waveforms in the system of the cellular telephone MTCR".

Mdcr, being inherently broadband signal, provides a form of passing the frequency by increasing the power of the signal bandwidth. Therefore, selective fading frequency affects only a small part of the bandwidth of the signal mdcr. Separation in space or on the highway is obtained by providing many paths of signals through concurrent lines of communication from the mobile user through two or more points of mobile communication. In addition, passing on the highway can be obtained through use of the environment, containing many paths through the processing of extended spectrum, allowing for separately receiving and processing the signal with different delays in distribution. Examples explode on the highway are illustrated in U.S. patent No. 5101501 called "Method and system for providing flexible transmission service while communicating in a cellular telephone system mdcr" and in U.S. patent No. 5109390, called the " Receiver with receive diversity in a cellular telephone system MTCR".

In the communication system, providing data, using the format modulation quadrature phase manipulation of the FMC can be obtained very useful information when receiving the cross-product in-phase I and quadrature Q signal components of the FMC. Knowing the relative phase of these two components, it is possible to determine approximately the speed of the mobile station relative to the base station. Description schemes for determining the cross-product of the components I and Q in the communication system with modulation FMC described in U.S. patent No. 5506865 called "Diagram of the scalar product of the carrier pilot signal.

There is a growing need for transmitting digital information at high speed radio communication systems. One way of transmitting high speed digital data from the remote station to the Central base station is to allow the remote station to transmit data using the methods mdcr spread spectrum. One of the proposed methods is to allow the remote station to transmit data using a small set of orthogonal channels, this method is described in detail in the process of simultaneous consideration of the patent application U.S. No. 08/886 .604 called "radio System mdcr with high-speed data.

Requires moviesboob control P-SCU, when the N-SCU is in the intermittent mode of transmission (PP), as of now, the mobile station must decide whether the received frame is a good frame is a bad frame or an empty frame (transfer none).

The invention

The present invention provides a new and improved method and apparatus for the control of potentially strobirovaniya channel in the communication system.

The first method is an extension of the method used PS-95, with empty frames just ignored, but potentially with different threshold values. The mobile station maintains a counter of consecutive bad frames, SCT, and the counter of consecutive good frames, SCT. At the beginning of the call SCT and SCT set to zero. For each received frame, the mobile station determines whether the frame is good, bad or empty. If the received frame is good, SCT is reset to zero, and SCT is incremented by 1. If the received frame is bad, then SCT is incremented, and SCT is reset to zero. If the received frame is empty, then SCT and SCT not change. If SCT reaches a threshold, POROG, the mobile station is blocking your transmitter. Accordingly, if SCT reaches a threshold, POROG, the mobile station re asset which indicates excess your transmitter. The mobile station resets its timer fading to X seconds whenever SCT becomes equal to or greater than the value POROG.

In a second possible embodiment, the base station periodically transmits a control frame (for example, at the beginning of each N-second interval, synchronized with the system time mdcr), if at this time there is no data frame for transmission to P-SCU. The control frame is transmitted with the lowest data rate agreed between the base station and the mobile station. Then the mobile station performs control P-SCU personnel transferred within a certain specified time in a manner analogous to the method defined in PS-95, potentially with different values for different threshold values. The mobile station in addition to these periodic frames can also contain other non-empty frames received to control.

In a third possible embodiment, the base station transmits a control frame each time the number of consecutive empty frames exceeds a threshold value or when the number of empty frames (consecutive or not consecutive) during a specified interval exceeds some threshold value. This ensures that the mobile station is not some empty frames for domestic the control always, when you want.

The fourth possible embodiment, the mobile station transmits a message requiring a response from the base station (for example, the response may simply be a confirmation of receipt), when the number of detected consecutive empty frames exceeds a threshold value. This ensures that the receiving mobile station is not empty frame to control.

In the fifth possible embodiment, the mobile station transmits a message requiring a response from the base station (for example, the response may simply be a confirmation of receipt), when the number of detected blank frames (consecutive or not consecutive) during a specified interval exceeds the threshold. This ensures that the receiving mobile station is not empty frame to control whenever you want.

In the sixth possible embodiment for monitoring the P-SCU mobile station uses the received level of the pilot signal strength (EC/Io) of pilot signals in the active set. If the total value of EC/Io of the pilot signals in the active set exceeds a threshold value, the mobile station considers the received data correctly, if the frame data is transmitted as a good shot. Otherwise, the mobile station considers the frame as bad. Then the control rule with the description of the mentioned above definition of good and bad frames similarly defined in PS-95, can be used with the same threshold values or with the modified threshold values.

Brief description of drawings

The features, objectives and advantages of the present invention will become more apparent from the following detailed description, accompanied by drawings that use sequential numbering.

Figure 1 is a diagram illustrating elements of a wireless system.

Figure 2 is a functional diagram of a base station according to the present invention.

Figure 3 is a functional diagram of the mobile station according to the present invention.

A detailed description of the preferred embodiments

Figure 1 shows a base station 2, and transmits signals 6 a direct line of communication to the mobile station 4. The mobile station 4 transmits signals 8 return line connection to the base station 2. In a possible embodiment, the signals 6 direct lines of communication and signals 8 return lines of communication are communication signals multiple access, code-division multiplexing (mdcr) in accordance with possible sentences industry Association telecommunications international telecommunication Union (ITU)called "Possible deals on radio access technologies MDCR ITU-R, additional sophisticated in working t is XTE intermediate standard, called "Ballot proposals for the physical layer MTCR".

Figure 2 depicts the elements necessary to transmit P-SSI signal 6 direct lines of communication and to receive a signal 8 return line. Messages for transmission to P-SCU are formed in the generator 100 messages P-SCU (GENE REPORTED SKU). These messages can contain messages planning speeds and message transmission route service and response messages (as described below). As stated previously, P-SCU is the channel PP, which is transmitted when there is a message for transmission and is not transmitted when there are no messages for transmission to P-SCU.

The message is supplied to the element 102 processing P-SCU. Element 102 processing P-SCU performs the necessary pre-processing and encoding messages P-SCU (when available) and forms a channel to send the message to P-SSI signal 6 a straight line. Message P-SCU is supplied to the generator 104 bits control cyclic redundancy code ICC and tail bits. In response, the generator 104 bits CEC and tail bits generates a set of bits of the control cyclic redundancy code (CEC) in accordance with the bits in the message P-SCU and adds bits of the CEC to the message P-SCU. Then the generator 104 bits CEC and tail bits adds a number of tail bits for the installation to its original state memory of the decoder preemnike and sends the resulting packet to the encoder 106.

In a possible embodiment, the encoder 106 is a convolutional encoder. Its design and implementation are well known in the art. For specialists in the art it is obvious that this invention is equally applicable to other coders, for example, to block encoders and turbochager. The encoded symbols are fed to the device 108 alternations. The device 108 alternation reorder the characters in the specified mode to ensure explode time in sending P-SCU. Usually in Radiocommunication systems errors occur in packages. Decoders have significant advantages functioning when dealing with bugs that are not in packages. The operation of alternation helps to distribute the resulting package bug for a package to improve the functioning of the decoder in the receiver.

Peremerzanie symbols are served by punching element 109 power control. Revealing element 109 receives the bits of the power control feedback line and punches the bits of the power control in the flow perenesennyj characters. Bits control the power transmitted in the mobile station 4 and is used to adjust the transmit power of the signal 8 return line connection.

Of the piercing element 109 characters are fed to the demultiplexer 110, which alternate displays the characters in two different branches of the processing. The first output signal of the demultiplexer 110 is served in the element A expansion, the next output signal of the demultiplexer 110 is fed into the device 112 VDC extensions and so on. Device 112 enlargement exercise enlargement demultiplexing characters in accordance with orthogonal increasing function of WSKU. Orthogonal expansion is well known in the art, and the preferred implementation of the device 112 extension described in the aforementioned U.S. patent No. 5103459. The enhanced signals are fed into the device 116 integrated PSH extensions.

In a possible embodiment, the base station 2 in addition to the dedicated control channel transmits a pilot channel signal to provide mobile (remote) station 4 opportunities to perform coherent demodulation of the received P-SCU. Symbols of the pilot signal, usually each sequence, served on the element 114 of the extension. Expanding symbols, pilot signal is usually carried out in accordance with the extending orthogonal sequence Wpilotorthogonal expanding sequence WSKU.

Advanced signals of the elements 112 and 114 extend served in the device 116 integrated PN expansion. The device 116 integrated PSH extension implements the extension signals from the housing 112 and 114 extend in accordance with two pseudocumene (PN) sequences PSH Iand PSHQ. Complex PN expansion is well known in the art and are described in detail in the possible proposals MDCR, in the working text of the specifications PS-2000 and the above-mentioned patent application U.S. No. 08/856 .428 undergoing simultaneous consideration. Extended with integrated PN expansion of the signal in the transmitter (PEN) 118. The transmitter 118 converts with increasing frequency, amplifies and filters the enhanced signals for transmission via the antenna 120, the signal 6 a straight line. In a possible embodiment, the transmitter 118 modulates the signal in accordance with the modulation format of the FMC.

According to figure 3 the signal 6 direct communication line is received by the antenna 200 and is fed through the antenna switch 202 in the receiver (RECEPTION) 204. The receiver 204 converts with decreasing frequency, amplifies and filters the signal 6 a straight line. According to a possible variant of implementation, the receiver 204 performs demodulation signal 6 a straight line in accordance with the format CPM demodulation, and outputs in-phase and quadrature signals to the device 206 comprehensive PSH compression. The device 206 comprehensive PSH compression compresses the received signal in accordance with two pseudocumene sequences, used to extend the signal (PSHIand PSHQ).

The signals that have been compressed using to mplexes PSH compression, served in the filter 208 pilot signal. The filter 208 pilot signal, compresses the signal in accordance with extending orthogonal sequence Wpilot. Compressed symbols of the pilot signal fed to the transmitter 214 Ec/Io and circuit 216 scalar product.

The signals that have been compressed using complex PSH compression, also served in the demodulator 210. The demodulator 210 performs demodulation of signals that are compressed by using PSH compression in accordance with extending orthogonal code WSKU. Then, the compressed signals are fed into the circuit 216 scalar product. The circuit 216 calculates the scalar product the scalar product P-SCU channel and the pilot signal. Since the pilot channel signal and a dedicated control channel are on the same trajectory distribution, they will have the same phase shifts. In the result of the calculation of the scalar product of the channel pilot signal and the channel of the SSI is obtained scalar set of modules with remote made by channel ambiguity phases. The preferred implementation of the circuit 216 scalar product is described in detail in the aforementioned U.S. patent No. 5506865.

The resulting demodulated symbols from the diagram 216 scalar product are fed into the device is turned interleave / decoder 218 and the detector 220 empty frame. The device converts interleave / coder 218 performs the inverse interleaving and decodes the message P-SCU and submits evaluation messages or signal that identifies the announcement of a bad frame, the processor 222 management of the SSI. There are a number of ways to detect a bad frame. The first method is to define, check whether the control bits cyclic redundancy code generated locally at the remote station 4, the decoded bits of the CEC. The second method is to calculate the frequency of occurrence of erroneous symbols by comparing the received encoded symbols with a set of locally generated re-encoded symbols based on the decoded bits.

The demodulated symbols from the diagram 216 scalar product is also served in the detector 220 empty frame. In a possible embodiment, the detector 220 empty frame calculates the signal-to-noise ratio of the demodulated symbols and compares the measured signal-to-noise threshold value. If the signal-to-noise ratio below a threshold, then there is an empty frame. It should be noted that there are other ways of defining an empty frame, not away from the essence of the present invention, it is possible to use any of them. Method and device for the detection of empty frames described in the process of simultaneous consideration of the patent application U.S. No. 09/150 .493, filed September 9, 1998 and called "System and method for detection of transmission speed on the basis of the e-power".

Not empty data frames are fed into the processor 222 management SCU, which retrieves punched commands to control power and transmits the signal to the transmitter 232, in response to the corrective power of the transmission signal 8 return line. The loss of this flow of control power leads to the inability to control the signal strength of 8 reverse lines of communication and, potentially, to create interference on the reverse link.

In the first embodiment of the present invention, the processor 222 management of the SSI receives from the decoder 218 or from the detector 220 detects that the frame is good, bad or empty. At the beginning of the call, two counters (SCT) 224 and (SCT) 226 are initialized to zero. If the received frame is a good frame, the counter 224 is reset to zero, and the counter 226 is incremented. If the received frame is declared a bad frame, the counter 224 is incremented, and the counter 226 is reset to zero. If the frame is declared empty, then the values of the counters 224 and 226 remain unchanged. If the value of the counter 224 reaches a threshold POROG, the processor 222 management of the SSI transmits the signal to the transmitter 232, blocking the transmitter (i.e. turns off output power). Accordingly, if the value of the counter 226 reaches a threshold POROG, the processor 222 of the control IC which transmits a signal to the transmitter 232, re-activating the transmitter.

In a second possible embodiment, each N-second interval, the base station 2 transmits a frame, referred to here as a control frame, if at this time there is no data frame for transmission to P-SCU. In a preferred embodiment, the control frame contains the famous mobile station specified bits and is transmitted at the lowest data rate, which is agreed between the base station 2 and mobile station 4.

According to figure 2, the timer 134 monitors the N-second intervals and at the end of the interval, transmits a signal to the CPU 132 controls. The processor 132 control determines whether there is a message to send, and if not available, it sends a signal to the generator 100 messages for the formation of the control frame. The control frame is transmitted on the channel of the P-I & C, as previously described in relation to other messages of the SSI. Then the mobile station 4 performs the control of the P-I & C is not empty frames transmitted at a certain specified time in a manner analogous to the method defined in PS-95, potentially with different meanings for different threshold values. The mobile station 4 in addition to these periodic frames can also contain other non-empty frames received for management purposes. It should be noted that the control frame is formed intermittent is based on the count value of the counter 130 figure 2.

In a third possible embodiment, the base station 2 transmits a frame, referred to here as a control frame, whenever the number of consecutive empty frames exceeds a threshold value. In a preferred embodiment, the control frame contains set bits, known by the mobile station, and is transmitted at the lowest data rate agreed upon between the base station 2 and mobile station 4.

According to figure 2, the processor 132 of the control tracks the number of consecutive empty frames in accordance with the signals from the generator 100 messages. When the number of consecutive empty frames exceeds a threshold, the control processor transmits to the generator 100 messages a signal for issuing a control frame for forming a control frame. The control frame is transmitted on the channel of the P-SCU as described in relation to other messages P-SCU. Then the mobile station 4 performs control P-SCU through the empty frames in a manner analogous to the method defined in PS-95, with a potentially different value for different threshold values.

The fourth possible embodiment, the mobile station 4 transmits a message requiring a response from the base station 2 (for example, the response may simply be a confirmation of receipt), when the number of detection is different consecutive empty frames exceeds a threshold value. According to figure 3, the processor 222 management takes the determining whether the frame is empty, the detector 220 empty frame. In this embodiment, the counter 224 tracks the number of consecutive empty frames and is reset when it detects a bad or a good frame. When the number of consecutive empty frames exceeds the threshold value, the processor 222 control transmits a signal generator 228 messages (GENERAL CONSIDERATIONS), which forms in response to the request message. The request message is encoded in the encoder 229, is modulated in the modulator 230, converted with increasing frequency, is amplified and filtered in a specified channel signal 8 return line. The request message can be any existing message already defined in the standard, does not cause any action base station, in addition to the transmission of the acknowledgment. For example, a message report about the measurement of power. The request message may also be special message, causing the transmission of the base station 2 control frame on P-SCU.

According to figure 2, the request message is received by the antenna 122 and supplied to the receiver 124, which converts with decreasing frequency, amplifies and filters the signal 8 return line, and delivers the received signal to the demodulator 126. The demodulator 126 performs demodulation signal, the decoder 128 e which encodes the demodulated symbols, submitting a request message to the processor 132 controls. In response, the processor 132 of the control determines whether the queue the message for transmission to P-SCU, and if not, transmits a signal requiring the formation of a generator 100 messages messages for transmission to P-SCU. In a possible embodiment, the message generated by the generator 100 is simply an acknowledgement request message from the mobile station 4.

In the fifth possible embodiment, the mobile station 4 transmits a message requiring a response from the base station 2, when the number of empty frames are detected within a specified number of received frames exceeds a threshold value, regardless of whether they are empty frames, consecutive or not. According to figure 3, the control processor 222 receives determining whether the empty frame of the detector 220 empty frame. The counter 224 tracks the number of empty frames in the sliding adder. When the number of empty frames in a predetermined number of received frames exceeds the threshold value, the processor 222 control transmits a signal generator 228 messages (GENERAL CONSIDERATIONS), which forms in response to the request message. The request message is encoded in the encoder 229, is modulated in the modulator 230 and converted with increasing frequency, amplified and filtered specified in the anal signal 8 return line connection.

According to figure 2, the request message is received by the antenna 8 and fed into the receiver 124, which converts with decreasing frequency, amplifies and filters the signal 8 return line connection and delivers the received signal to the demodulator 126. The demodulator 126 performs demodulation signal, the decoder 128 decodes the demodulated symbols, submitting a request message to the processor 132 controls. In response, the CPU 132 controls 132 determines whether the queue the message for transmission to P-SCU, and if not, transmits a signal requiring the formation of a generator 100 messages messages for transmission to P-SCU. In a possible embodiment, the message generated by the generator 100 is merely an acknowledgement request message.

In the sixth possible embodiment for controlling P-SCU mobile station 4 uses the received level of the pilot signal strength (EC/Io) of pilot signals in the active set. If the total value of EC/Io of the pilot signal in the active set exceeds a specified threshold, then the mobile station 4 examines the received data correctly if the frame data is transmitted as a good shot. Otherwise, the mobile station 4 considers the frame as bad. Then the control rule described above definition of good and bad frames, similarly defined in PS-95, can the t be used with the same threshold values or with the modified threshold values.

According to figure 3 the signal-to-noise ratio (EC/Io) of the received symbols of the pilot signal is calculated in the calculator 214 Ec/Io. The value of Ec/Io for the pilot signal 6 a straight line is added to the value of Ec/Io of the pilot signals from other base stations in the active set of the mobile station 4 to ensure that the total value of Ec/Io. The active set of base stations is a set of base stations currently communicating with the mobile station 4. The total value of Ec/Io of the pilot signal in the processor 222 controls, which compares the total value of Ec/Io threshold value. If the total value of Ec/Io exceeds the threshold value, then it is a good frame, and if the total value of Ec/Io is less than the threshold value, then it is a bad frame. This allows the mobile station 4 to conclude, good or bad frame is received frame, if it is not empty, not realizing the decoding of the frame. Based on these calculations, the mobile station 4 activates or blocks the transmitter 232, as described above.

The preceding description of the preferred embodiments of the present invention provides an opportunity for professionals in the art to make or use the present invention. Various modifications to the described variants of osushestvliayut easily visible to experts in the field of technology and the General principles defined herein may be applied to other variants of implementation without the use of inventive abilities. Thus, the present invention is not limited to the variants of the implementation discussed here, and is available for use in the widest scope consistent with the disclosed here, the principles and new features.

1. The method of control of potentially strobirovaniya channel transmitted in the mode of discontinuous transmission (PP) in the communication system, namely, that take the frame to the mobile station, is determined in the mobile station, whether the frame is empty, send a control frame from a base station to a mobile station in each interval, if there is no data to send, send the control frame from the base station in the mobile station, when a certain number of consecutive empty frames exceeds a threshold value, and control in the mobile station mentioned channel control frame adopted from the base station.

2. The method according to claim 1, characterized in that the control frame contains set bits, known by the mobile station, and transmitting at the lowest data rate, which is agreed between the base station and the mobile station.

3. The method of control of potentially strobirovaniya channel in the system of radio communication, namely, that take shots at the mobile station, initialize the first counter and the second counter in the mobile station, the mobile station for each received frame to determine whether the frame is good, bad or empty, reset the first counter and increase the reading of the second counter, if the frame is good, increase the reading of the first counter and resets the second counter if the frame is bad, do not increase the testimony of the first counter and a second counter if the frame is empty, the block output power of the mobile station, if the reading of the first counter reaches a first threshold value, and unlocks the power output mobile station, if the reading of the second counter reaches a second threshold value, and thus control the said channel from received frames.

4. The method according to claim 3, characterized in that when the block output power of the mobile station block the transmitter of the mobile station, and upon unlocking, the output power of the mobile station unlocks the transmitter of the mobile station.

5. The method according to claim 3, characterized in that it further resets the timer fading in the mobile station, if the reading of the second counter becomes greater than the third threshold value.

6. The method of control of potentially stramilano what about the channel in the communication system, namely, that take the frame to the mobile station, the mobile station determines whether this frame is empty, send the control frame in each interval of the base station in the mobile station, if there is no data frame for transmission over the channel, and control in the mobile station mentioned channel in accordance with predetermined control rules on the said reference frame adopted from the base station.

7. The method of control of potentially strobirovaniya channel in the communication system, namely, that take the frame to the mobile station, the mobile station determines whether this frame is empty, for each received frame to determine the number of consecutive empty frames, transmit the message from the mobile station to the base station, when a certain number of consecutive empty frames exceeds a threshold value, transmitting a control frame from the base station in the mobile station, when a certain number of consecutive empty frames exceeds a threshold value, and in the mobile station control mentioned channel on the said reference frame adopted from the base station.

8. The method according to claim 7, characterized in that the control frame transmitting at the lowest data rate, which is agreed between the base station and the mobile station is to it.

9. The method of control of potentially strobirovaniya channel in the communication system, namely, that take the frame to the mobile station, the mobile station determines whether each received frame is empty, determine the number of consecutive empty frames in the above-mentioned channel and transmit the message from the mobile station to the base station, when the number of consecutive empty frames exceeds a threshold value, and the message requires a response from the base station, and thus control the said channel in the mobile station by transmitting messages to the base station and receiving a response from the base station.

10. The method according to claim 9, wherein the response is an ACK.

11. The method according to claim 9, characterized in that the transmitted message causes the base station to transmit the control frame on the channel.

12. The method of control of potentially strobirovaniya channel in the communication system, namely, that take the frame to the mobile station, take the symbols of the pilot signals in the mobile station from the base stations in the active set of the mobile station, determine a total value of signal to noise ratio (EC/Io) of pilot signals in the active set of the mobile station, determine whether a certain total value of signal to noise ratio (EC/Io) of prodigals active set threshold value, recognize the good frame, if the total value of EC/Io of the pilot signal in the active set exceeds a threshold value, and recognize the frame is bad, if the total value of EC/Io of the pilot signals in the active set does not exceed a specified threshold, and thus control the said channel in the mobile station.

13. The method according to item 12, characterized in that it calculates the total value of EC/Io of the pilot signals in the active set by adding the pilot signal direct lines of communication with the values of EC/Io of the pilot signals from other base stations in the active set of the mobile station.



 

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4 cl, 15 dwg

FIELD: mobile telecommunications.

SUBSTANCE: radio network controller periodically sends control messages, concerning adjustment of unidirectional channels of MBMS system, to user equipment units. Therefore, though user equipment units can not receive planned service of MBMS, it can adjust unidirectional channels of MBMS by receiving appropriate control message dispatched multiple times. Also, radio network controllers periodically provide information about currently engaged MBMS services on cell system basis, so that user equipment unit can take a decision, whether requested service is offered by MBMS, and request information from radio network controller, which is necessary to adjust unidirectional MBMS channels for MBMS service, by means of individual signaling.

EFFECT: higher efficiency, no negative effect on working characteristics of system in mobile telecommunications system.

4 cl, 13 dwg

FIELD: mobile telecommunication systems.

SUBSTANCE: first mobile station receives its own control information, and second mobile station receives its own control information and control information for first mobile station, receiver receives information on condition of direct mobile stations channels during previous time period, channel transmitter transmits individual control information to first mobile station and second mobile station during given time span.

EFFECT: effective power distribution for appropriate clients, when certain client should receiver not only channel, transmitting its own control information, but also channels, transmitting controlling information for other clients in mobile communications system, transmitting packet data.

5 cl, 5 dwg

FIELD: mobile telecommunication systems.

SUBSTANCE: method includes transfer of message with request about data transfer speed, to mobile station after transfer of packet data, for receiving transmitted packet data; transferring to mobile station of message with confirmation, during given time span in response to confirmation message signal of detection of message with data transfer speed from mobile station; and transfer of packet data together with signal of power control with data transfer speed on basis of message about speed of data transfer, received from mobile station, after transfer of confirmation message.

EFFECT: possible transfer of information about state of direct channel in mobile telecommunication system, supporting service of packet data transfer.

4 cl, 19 dwg

FIELD: measuring equipment.

SUBSTANCE: device additionally features microcontrollers, one of which generates gating pulses, guided into controlled fiber-optic line before test pseudo-random series, and second one, while receiving gating pulses, produces synchronization signals.

EFFECT: simplified construction, higher efficiency, broader functional capabilities.

5 dwg

FIELD: communications engineering.

SUBSTANCE: method includes configuring a receiver with possible waiting for receipt of communication channel at full data transfer speed, and signal from transmitter is sent to receiver. Signal is sent via communication channel with data transfer speed, different from full speed of data transfer, and at level of power for receipt at full data transfer speed. As a result receiver can not receiver communication channel at full data transfer speed. In receiver relation of received signal to noise is determined. Value of quality coefficient bit is determined ion basis of certain relation of signal to noise. Determined value of quality coefficient bit is sent to transmitter.

EFFECT: higher efficiency.

3 cl, 3 dwg, 7 tbl

FIELD: communications.

SUBSTANCE: communication system has decoder and testing system for sending test data to decoder. Test data include signaling data field, sent via traffic channel, and speech signal parameters, encoded via channel encoding, are formed in form of frames by testing device and sent to decoder for decoding. Decoder extracts at lest a portion of signaling data field, sent along traffic channel, from decoded test data and sends at least a portion of signaling data, sent via traffic channel, back to testing device. Efficiency of decoding is measured by comparison of sent field of signaling data, sent along traffic channel, and signaling data field, sent along traffic channel, received in testing device.

EFFECT: higher quality, higher efficiency.

3 cl, 6 dwg

FIELD: automated control and diagnostics systems.

SUBSTANCE: first variant of complex includes control computer, mating block, commutator, local data exchange main, tests forming block, logical analyzer, signature analyzer, synchronization block, digital oscillographs block, special form signals programmed generators block, programmed power-sources block. Second variant of complex additionally includes block for forming high-frequency test signals and block for measuring high-frequency signals.

EFFECT: broader functional capabilities, higher efficiency, higher reliability.

2 cl, 2 dwg

FIELD: radio communications engineering.

SUBSTANCE: proposed device has information signal source, threshold unit, pulse shaper, AND gate, differentiating unit, radio station transmitter and receiver.

EFFECT: enhanced checkup precision.

1 cl, 2 dwg

FIELD: cellular code-division radio communication systems using variable-speed voice coders.

SUBSTANCE: proposed method for evaluating data transfer speed includes suggestion of m hypotheses on data transfer speed for each data frame received and generation of k data metrics for each of them. Relationship between truth estimate of each hypothesis and aggregate values of respective data quality metrics is specified for generating truth estimates of each hypothesis and value of this relationship is found for data quality metrics obtained for frame received. Data quality is checked and decision is shaped on adopted speed and quality of received-frame decoded data.

EFFECT: enhanced precision of evaluating data transfer speed in forward and backward communication channels and data frames received with errors.

14 cl, 1 dwg

FIELD: radio communications.

SUBSTANCE: pulse noise is detected upon conversion of signal received into intermediate frequency, noise active time is determined, information signal is disconnected from amplifier incorporated in superheterodyne receiver, noise-affected part of information signal is recovered by eliminating simulator signals during extrapolation, and superheterodyne receiver is checked for serviceability at intermediate frequency.

EFFECT: enhanced precision of superheterodyne receiver serviceability check.

1 cl, 1 dwg

The invention relates to electrical engineering and can be used to control parameters of signals functioning and newly created lines

The invention relates to radio engineering

FIELD: radio communications.

SUBSTANCE: pulse noise is detected upon conversion of signal received into intermediate frequency, noise active time is determined, information signal is disconnected from amplifier incorporated in superheterodyne receiver, noise-affected part of information signal is recovered by eliminating simulator signals during extrapolation, and superheterodyne receiver is checked for serviceability at intermediate frequency.

EFFECT: enhanced precision of superheterodyne receiver serviceability check.

1 cl, 1 dwg

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