Device and method for power measurement orthogonal noise for the communication system mdcr

 

(57) Abstract:

The invention relates to a receiving device and method for communication systems. In the detecting device non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) sphincter squeezes multiple-channel signals including the channel with an orthogonal code assigned to the channel on which, during the specified duration of the first character at least twice repeats the same second character, with the purpose of generating compressed recurring character signal generator difference takes a short second characters and generates a signal of a difference between the currently received second symbol and the previously adopted by the second symbol, the detector converts the signal to noise difference in the value of the signal-orthogonal noise. Technical result achieved - measurement in the receiver component of the non-orthogonal noise included in the signal transmitted by the transmitting device in the communication system mdcr. 6 C. and 13 C.p. f-crystals, 10 ill.

The technical field to which the invention relates

The present invention relates, in General, to the receiving device and soomaaliga channel signal.

Art

In communication systems, multiple access, code-division multiplexing (mdcr) to separate the channels are orthogonal codes. In particular, in a straight line, a common technique is synchronous mdcr, which allows you to segment users by using orthogonal codes. In the absence of multipath propagation between channels using different orthogonal codes, there is no interference. Even in conditions of multipath propagation is supported orthogonality between the respective channels in relation to the components of the multipath signal. Therefore, although some of the signals on the respective paths, act as a hindrance, most signals do not act as a hindrance.

Accordingly, for the implementation of an effective communication system mdcr need accurate measurement of signal components, acting as a hindrance, i.e., power-orthogonal noise. Power consumption measured non-orthogonal noise can be used to determine the signal to noise ratio (BSA) to adjust the gain paths of the receiver.

The method of power measurement orthogonal noise contained velenyi orthogonal code of the available orthogonal codes for direct communication line is not assigned a direct line. The base station sends to the mobile station information assigned orthogonal code. Then the mobile station compresses the signal received on channel a direct line of communication with the assigned orthogonal codes and calculate the energy component of the compressed channel signal detection component of the non-orthogonal noise.

In the configuration described in patent '790 as for power measurement orthogonal noise direct line of communication assigned a specific orthogonal code, the orthogonal code cannot be used on other channels. Thus, the orthogonal code can't even be used when to improve the performance of a direct line of communication requires additional orthogonal codes. In addition, in the standard IS-95 for power measurement orthogonal noise it is impossible to use a specific orthogonal code.

In the patent US 5754533 stated another way of measuring non-orthogonal noise, according to which the receiving device evaluates the energy detektirovaniya by compression of the signal received on the channel with low signal strength, as component (or power) non-orthogonal noise. In this case, the channel aqueous noise estimated value, obtained by adding component signal data synchronal, regardless of how low its level, with a capacity of non-orthogonal noise. Thus, it is impossible to accurately measure the capacity of non-orthogonal noise.

The invention

Thus, the present invention is a device and method of measurement in the receiver component of the non-orthogonal noise included in the signal transmitted by the transmitting device in the communication system mdcr.

Another object of the present invention is to provide device and method of measurement non-orthogonal noise based on the recurrence pattern for a channel in which retransmission of the same data, in the communication system mdcr.

Another objective of the present invention is to provide device and method of measurement non-orthogonal noise based on the recurrence pattern for a low-speed channel traffic in the communication system mdcr.

To solve these problems, an apparatus of detecting non-orthogonal noise for the communication system mdcr. The device contains a sphincter to compress multiple canals is within the specified duration of the first symbol, at least twice repeats the same second character with the purpose of generating compressed recurring characters; a signal generator difference for receiving compressed second symbols, and generating a signal of a difference between the currently received second symbol and the second symbol previously received signal; and detector noise to signal conversion difference in the energy value with the purpose of generating a signal non-orthogonal noise.

Brief description of drawings

The above and other objectives, features and advantages of the present invention will become clearer from the following detailed description given in conjunction with the accompanying drawings, in which:

Fig. 1 is a diagram of the channel transmission device for the transmission component of the non-orthogonal noise in the communication system mdcr in accordance with the variant of realization of the present invention;

Fig. 2 illustrates a symbolic structure of the channel used for power measurement orthogonal noise channel in the transmitting device shown in Fig.1;

Fig.3 is a diagram of the channel receiving device for power measurement orthogonal noise in the communication system MDK the material transmitting device and channel receiving device for power measurement orthogonal noise in the communication system mdcr in accordance with another variant of realization of the present invention;

Fig. 5 is a diagram of a receiving device for a mobile station to determine the control commands power depending on the power of non-orthogonal noise in accordance with a variant implementation of the present invention;

Fig.6 is a diagram of the path, is shown in Fig.5, in accordance with the first variant of realization of the present invention;

Fig.7 illustrates the pattern of Association of characters and measurements of the PCB is shown in Fig.5, when the paths have the structure depicted in Fig.6;

Fig.8 is a diagram of the path, is shown in Fig.5, in accordance with the second variant of realization of the present invention;

Fig.9 illustrates the pattern of Association of characters and measurements of the PCB is shown in Fig.5, when the paths have the structure depicted in Fig.8;

Fig.10 illustrates a receiver to measure the power of non-orthogonal noise in accordance with another variant of realization of the present invention.

Detailed description of preferred embodiments

The present invention is directed to a power measurement orthogonal noise, acting as noise interference in respect of the relevant paths in the communication system mdcr. For to the and designed for reception of the signal channel transmitter straight line, measures the non-orthogonal noise included in the received signal.

Although a direct line of communication appropriate channels to avoid interference subject to extension by using orthogonal codes, due to multipath propagation, some signals may act as a hindrance. In this case, the interference signal is orthogonal component, and accurate measurement component of the non-orthogonal noise plays an important role in the development of the receiver. Accordingly, to measure the component of the non-orthogonal noise according to this implementation variant uses the channel a straight line, which transmitted the same data (i.e., all zeros or all ones) that do not contain specific information (data and speech). You can also use a low-speed channel traffic, which repeats the same character data. For example, channel a straight line, which repeats the same data without any particular information may constitute a pilot channel signal, and a low-speed channel, which repeats the same symbol data may Ave the present invention, as orthogonal codes for channel separation can be assigned to all available orthogonal codes system. Thus, according to this method there is no need to specifically select one or more orthogonal codes to measure the component of the non-orthogonal noise, as it is done in accordance with the prior art.

In Fig. 1 shows a channel transmitting device for direct communication lines and three channels, namely channel pilot signal carries no specific information in the is-95, is a slow synchronal, which repeated the same symbols, and the channel traffic.

According Fig. 1 channel pilot signal contains all "0" (i.e., does not assume any specific information). Expander 102 multiplies the pilot signal by an orthogonal code for the pilot channel signal to generate a pilot signal, the extended orthogonal code. Synchronal carries information of synchronal, but outputs the data at low speed, 1,2 Kbit/s Signal transmitted by synchronal with a speed of 1.2 Kbps, encoded by the encoder 104. As the encoder 104 can be used convolutional encoder with bit rate R= 1/2. In this case, the signal synchronal with a speed of 1.2 To the Ala, coming from the output of the encoder 104. Interleaver 108 punctuates the characters synchronal coming from the output character repeater 106, in order to avoid packet error. As the interleaver 108 can use a block interleaver. The extender 110 multiplies the signal synchronal coming from the output of the interleaver 108, an orthogonal code assigned to synchronal, with the purpose of generating a signal synchronal, extended orthogonal code.

Direct line also includes traffic channels, which establish a separate line of communication between the base station and the mobile station for transmission of data and speech and channel search call (paging channel), which is a common channel used when the base station performs a search call to this mobile station to establish a call. In this case, the channel for transmitting the actual data is called channel traffic. In the system mdcr there are different traffic channels for voice, text, facsimile data, the image data and the moving image. According to this implementation variant assumes that the trafc channel is a channel search call. The speed of peredach a channel for the transmission of actual data to the mobile station and outputs the data at a higher speed, than synchronal. The signal transmitted at the rate of 9.6 Kbps or 4.8 Kbps channel search call is encoded by the encoder 114, which can be used convolutional coding with rate R=1/2. In this case, the signal channel search call at the rate of 9.6 Kbps or 4.8 Kbps encoded into symbols with a speed of 19.2 CMS/s (or 9.6 CMS/s). Character repeater 116 once (or twice) repeats the symbols channel search call coming from the output of the encoder 114. Interleaver 118 punctuates the characters of the channel search of the incoming call from the output character repeater 116, in order to avoid packet error. As the interleaver 118 can use a block interleaver. The dilator 120 multiplies the signal channel search call coming from the output of the interleaver 118, an orthogonal code assigned to the channel search of the call, with the purpose of generating a signal channel search call, the extended orthogonal code.

From the above it follows that the target transmission rate character synchronal equal to 4.8 CMS/s, which is four times less than the symbol rate (19,2 CMS/s) channel traffic. Accordingly, for the coordination of transmission of data symbols, which have a short period is Ino to synchronal, on which repeated the same characters. According to the method that meets the present invention, the receiving device is a straight line measures the component of the non-orthogonal noise using synchronal, which repeated the same characters.

In Fig.2 shows synchronal straight line IS-95, which is in compression orthogonal code. According Fig.2 compressed symbols S(n,1),..., S(n,4)make one single character of synchronal, which corresponds to 4 characters, which have a short period. In other words, when one character synchronal is transmitted with a speed of 4.8 CMS/s, and one character channel traffic is transmitted with the speed of 19.2 CMS/s, four digit channel traffic can be transmitted within the duration of one symbol synchronal. Symbol synchronal will refer to the first character, and the character of the channel traffic will refer to the second symbol. All 4 of the second symbol, which are the duration of the first symbol, i.e. the symbol of synchronal, have the same value. Therefore, the subtraction of the first two second symbols from the values of the following two characters, which have a short period, always gives zero. However, when the characters synchronal sedowski two characters, it is possible to detect a component of the non-orthogonal noise.

The calculation is made in accordance with the following equation (1). Component of the non-orthogonal noise can be calculated from a received signal synchronal as follows:

Power-orthogonal noise = (I2n-I2n-1)2+(Q2n-Q2n-1)2, (1)

where Inand Qnrepresent character values, respectively, for in-phase (I) and quadrature (Q) channel, the received complex signal.

In Fig.3 depicts a receiver for measuring the component of the non-orthogonal noise using equation (1). According Fig.3 the sphincter 311 multiplies the received signal by an orthogonal code assigned to the channel, with the purpose of the compression signal, the extended orthogonal code. This channel may be a channel, not carrier specific information, or a low-speed channel on which repeated the same data. According to this implementation variant, it is assumed that the channel is synchronal (i.e., a channel with a low data rate).

In this case, the sphincter 311 compresses accept advanced signal synchronal, multiplying prinimali first character), coming from the output of the sphincter 311, during each symbol period channel traffic. In this case, the duration of one symbol synchronal (or the first character) may be equal to the duration of the four symbols of the channel traffic (or second characters), i.e., S(n,1), Sn,2), S(n,3)and S(n,4)depicted on Fig.2. The delay circuit 315 delays the output signal of the drive 313 to one symbol period. MyCitadel 317 subtracts the current value of the symbol synchronal obtained at the output of the drive 313, from the previous value of the symbol synchronal obtained at the output of the delay circuit 315, with the aim of calculating the difference of two symbols. The squarer 319 squares is the difference of two symbols from the output of vicites 317, with the aim of detecting the power of the noise component. Subdescriptor 321 subdirectory component of the non-orthogonal noise from the output of the Quad 319, specific characters. In addition, subdescriptor 321 selects from the output signal of the Quad 319 power-orthogonal noise on specific characters. Thus, in the case shown in Fig.2, the value determined in accordance with the difference between symbols S(n,1)and S(n,2)is not selected annoy on the border of the durations of the symbols (for example, S(1,4)and S(2,1); S(2,4)and S(3,1); ...; S(n,4)and S(1,1). Filter 323 performs bandpass filtering capacity of the non-orthogonal noise coming from the output of subdescriptor 321. To achieve the desired bandwidth filter 323 can be formed from a filter with the impulse response of infinite duration (IIR) and the impulse response of finite duration (FIR).

During the operation of the receiver shown in Fig.3, receives a multicast signal, the compressed pseudo-random noise (PN), and multiplies the signal by an orthogonal code for synchronal for its compression and conversion into a signal of single characters through the sphincter 311 and drive 313. In this case, a single symbol is a symbol of the channel traffic, and not a symbol of synchronal. Therefore, the symbol of synchronal is divided into four traffic channels and accumulates. The signals are converted to single characters, enter the delay circuit 315 and myCitadel 317. MyCitadel 317 calculates the difference between the current symbol and the previous symbol, the detainees in the delay circuit 315. The value obtained at the output of vicites 317, being a component of the non-orthogonal noise, is fed to a squarer 319, which calculates monachini differences for the in-phase I and quadrature Q channel. Subdescriptor 321 selects the output signal of the Quad 319 in blocks of two characters to select signal non-orthogonal noise. In this case, subdescriptor 321 should not choose the capacity of the non-orthogonal noise, calculated on the border between characters synchronal. When changing characters synchronal (for example, S(1,4)and S(2,1)) the value of the symbol changes. Therefore, the energy, detektirovaniya at this point in time, is not a pure power-orthogonal noise. Thus, subdescriptor 321 selects only the power-orthogonal noise that is detected within the duration of one symbol synchronal. The output signal of subdescriptor 321 is supplied to the filter 323, which regulates the bandwidth component of the non-orthogonal noise. Filter 323 performs bandpass filtering component of the non-orthogonal noise to output values of the non-orthogonal noise during specific periods.

Although the description refers to the case of the measurement component of the non-orthogonal noise using a low-speed channel on which repeated the same data, the same method of measurement can be applied in the case when the transmitter transmits cofig.4A and 4B).

First of all, let us describe the operations of the transmitter depicted in Fig.4A. The channel 401 on which the transfer takes place, is a channel having a low data rate 1,2 Kbit/s Signal with a speed of 1.2 Kbit/s low-speed channel is encoded by the encoder 402, which can be used convolutional encoder with R=1/2. In this case, the signal from the low-speed, 1/2 Kbps, encoded into symbols at a rate of 2.4 CMS/s symbol repeater 403 repeats twice symbols a low-speed channel, coming from the output of the encoder 402 to issue 4,8 To characters per second. Interleaver 404 punctuates the characters a low-speed channel, coming from the output character repeater 403, in order to avoid packet error. As the interleaver 404, you can use a block interleaver. The multiplier 406 multiplies the output signal of the interleaver 404 to the output signal generator template 405. In this case, the generator template multiplier 405 and 406 form a circuit insertion. The expander 408 multiplies the signal low-speed channel, coming from the output of the multiplier 406, an orthogonal code assigned to the low-speed channel to generate a signal of an extended orthogonal code.

During operation the received signal, which is a group signal compressed by PSH, is multiplexed orthogonal code for synchronal to compress through the sphincter 411, and compressed characters a low-speed channel is converted and accumulated in the form of a single length of a symbol of high-speed channel by means of the drive 412. The signals are converted to single characters, are multiplied in the multiplier 414 on the same template, which is used in the transmitter. The output signal of multiplier 414 in parallel is supplied to the delay circuit 415 and myCitadel 416. MyCitadel 416 viesti two characters. In this case, the value of the difference coming from the output of vicites 416, as a component of the non-orthogonal noise enters the squarer 417, which computes the power of the non-orthogonal noise. To get the power of non-orthogonal noise, Quad splitter 417 squares of the difference values for the in-phase I and quadrature Q channel. Subdescriptor 418 performs the function of detecting the output signal of the Quad 417 in the block of two symbols. The output signal of subdescriptor 418 enters the filter 419, which regulates the bandwidth component of the non-orthogonal noise. Filter 419 performs bandpass filtering component of the non-orthogonal noise with the aim of capacity output-orthogonal noise during periods of specified duration.

In Fig. 10 shows a receiver to measure the power of non-orthogonal noise, corresponding to another implementation variant of the present invention. The sphincter 1011 compresses the signal, the extended orthogonal code multiplying the received signal by an orthogonal code assigned to this channel. More precisely, the sphincter 1011 compresses accept advanced signal low-speed channel by multiplying the received signal by an orthogonal code assigned to this channel the character. In this case, the drive 1012 accumulates compressed characters a low-speed channel, accumulating the signal is compressed for the duration of one symbol of low-speed channel, in the form of a single length of a symbol of high-speed channel. The particular pattern generator 1013 generates the same pattern as the generator template 405 in the transmitter. The multiplier 1014 multiplies the output signal of the drive 1012 on the output signal generator template 1013. In this case, the multiplier 1014 and generator template 1013 form the detector pattern. In this case, the same operation as in the receiving device shown in Fig. 4.

Compressed characters are transferred to the delay circuit 1015, and the circuit gain control 1018. The receiver, shown in Fig.10, includes a delay circuit capable of storing multiple compressed symbols to the symbol store in the amount determined by the latter accepted a recurring character, i.e. COL SIM. To receive characters synchronal depicted in Fig.2, the receiver depicted in Fig.10, may include three delay circuit 1015, 1016 and 1017. In this case, each of the delay circuits 1015, 1016 and 1017 has three delay elements, so that they can store three characters, predshestvuyuschie facilities current compressed symbol will denote by Xn, the character preceding by one symbol, Xn-1, the character preceding two symbols, Xn-2and the character preceding three symbol, Xn-3. Thus, the character preceding k symbols will be denoted Xn-k. Then the current input symbol and the symbols stored in the delay circuits 1015-1017, multiplied by schemes gain control 1018-1022 appropriate values0-C3gain control, and the resulting works are summed at the adder 1023. The output signal of the adder 1023 can be defined as:

Yn=C0Xn+C1Xn-1+ ... +CkXn-k, (2)

where the value of the gain set in accordance with condition C0+C1+...+Ck=0. Because the transmitter before sending it repeats the data symbols multiple times, the value of Ynin equation (2) in the absence of noise must be zero.

According to a variant implementation, shown in Fig.10, since k=3, equation (2) can be rewritten as:

Yn=C0Xn+C1Xn-1+C2Xn-2+C3Xn-3< / BR>
C0+C1+C2+C3=0.

The value of Yncalculated on the last simoa the received symbol comprises a component of non-orthogonal noise, the value of Ynmay be different from zero due to the component of the non-orthogonal noise. In this case, the capacity of the non-orthogonal noise, desired target can be calculated by squaring the values of Ynand averaging the values of the square at the specified time.

Although the description is given with reference to the case of the variant according to the implementation shown in Fig.10, the power of the non-orthogonal noise is calculated based only on the value of Ynthe capacity of the non-orthogonal noise can also be measured by calculating Y'nusing the coefficients'0C'1WITH'2WITH'3(C'0+C'1+C'2+C'3=0). In this case, although the complexity and the computation of the receiver increases, it is possible to measure the capacity of non-orthogonal noise more accurately.

The squarer 1024 squares a value of Ynobtained at the output of adder 1023, with the aim of detecting energy component of the non-orthogonal noise. Then subdescriptor 1025 subdirectory noise from the output of the Quad 1024, specific characters. From the output signal of the Quad 1024 subdescriptor 1025 selects specific characters and power-orthogonal noise symbols. With the characters of low-speed channel. Filter 1026 performs bandpass filtering the output signal of subdescriptor 1025 to output power non-orthogonal noise.

In Fig.5 shows the receiver group signals, which handles complex signals including components of the in-phase I and quadrature Q channel. For convenience, we omit the detailed description of the receiver group of signals. The receiver group of signals includes a circuit for automatic gain control (AGC) 512, 514 search, M paths 521-52M, the pattern of Association of characters and the measurement of the ratio signal/noise (BSA) 532.

The AGC circuit 512 measures the energy of the input signal to generate the adjustment signal gain to control the gain of the amplifier with AGC. The search schema 514 is looking for multipath component of high power which is assigned to the tract after the initial seizure and search of the cellular cell. Paths 521-52M demodulated multipath components assigned to the search schema 514, and measure the local BSA demodulated multipath components. Join scheme and measurement of BSA 532 summarizes the local BSA, calculated on the paths 521-52M, with the aim of calculating the effective GSP receiver General for ODA respective paths 521-52M receiver is compression of the received signals using orthogonal codes, assigned to the respective channels, with the aim of measuring the components of the interference and measurement of the local BSA. Then join scheme and measurement of BSA 532 calculates the effective GSP receiver, summarizing local BSA respective paths 521-52M. Then effective BSA is compared with a threshold. If the result of the comparison is that GSP is greater than the threshold, the command is generated less power to reduce the signal level on a straight line; if the GSP is below the threshold, then a command is generated to increase capacity to increase the signal level on a straight line.

A. the First implementation

In Fig.6 depicts a detailed diagram of the path measuring GSP by measuring the energy of the input component of the received signal. All signals shown in Fig.6, are complex signals.

According Fig. 6 the multiplier 611 compresses the input signal by mixing the input signal with a PN sequence. The scheme of channel estimation 613 assesses the level and phase response of multipath channel on the basis of the compressed pilot signal. Scheme of complex conjugation 615 performs complex conjugation of the output signal of the evaluation scheme channel 613. The multiplier 617 multiplies the output signaled signal channel traffic coming from the output of the multiplier 617, in the form of single characters to output the desired component data. The multiplier 621 multiplies the output signal of the circuit complex conjugation 615 to output the drive signal 619 to output character data to the aggregator 531 characters.

The detector energy signal 623 squares corresponding components of a signal output from the drive 619 (I2+Q2to calculate the signal energy. Filter 625 filters the energy of the signal coming from the detector output energy signal 623 to output component of the received signal corresponding path.

The power of the interference is detected by measuring non-orthogonal noise 630 having the same construction, that shown in Fig.3 and 4. According Fig.6 the design of the meter-orthogonal noise 630 identical depicted in Fig. 3. Component of the non-orthogonal noise measured by the measuring non-orthogonal noise 630, is supplied to the divider 627, which divides the signal component on the component of the non-orthogonal noise coming from the output of the filter 625, with the purpose of generating a local signal corresponding CPEs tract.

According to the above described tract, shown in Fig.6, the persecuted. In addition, the tract detects a component of the non-orthogonal noise according to the present invention, and then divides the capacity of the non-orthogonal noise power of the signal in order to compute the local BSA.

Fig. 7 illustrates in detail the pattern of Association of characters and measurements of BSA 532, when the paths have the structure depicted in Fig.6. According Fig.7, the adder (or logical element "exclusive OR") 711 combines the symbols of the data outputs of the respective circuits 521-52M. The adder (or logical element "exclusive OR") 712 summarizes the local BSA (i.e. ASP-OSPM) outputs of the respective circuits 521-52M, with the purpose output General GSP, which is compared with a threshold to determine control commands power. Thus, the pattern of Association of characters and measurements of BSA 532 adder 712 summarizes the local BSA, measured on the respective paths 521-52M, with the aim of measuring an effective BSA receiver of the mobile station as a whole. In addition, effective BSA is compared with a threshold. If the result of the comparison is that GSP is greater than the threshold, the command is generated by reducing the output to a straight line; if the GSP is below the threshold, it generates ohms is given by the direct channel, to facilitate the initial capture and data demodulation, and channel traffic sends a command to the power control on the reverse of the communication line during periods of 1.2 MS by punching after insertion.

The mobile station may measure the signal strength on the basis of control commands power transmitted in a straight line. The above method of measuring the GSP allows you to calculate the capacity of the channel traffic based only on the power control commands power after detection signal traffic.

Although Fig.6 and 7 illustrate a case of combining the measured local BSA respective paths, to measure the CPEs can also be used when combining signals of the respective channels on the multiplexer signals.

C. the Second implementation

In Fig.8 shows a detailed diagram of the path measurement PCB. According to this variant of realization of the gain coming in the unifier of the characters, is regulated according to the obstacle measured by the meter-orthogonal noise.

According Fig. 8 the multiplier 811 compresses the input signal by mixing the input signal with a PN sequence. The multiplier 812 multiplies the compressed signal from the NCI channel 813 assesses the level and phase of the signal response of multipath channel, demodulator on the path and received at the output of the multiplier 811. Scheme of complex conjugation 815 performs complex conjugation of the output signal of the evaluation scheme channel 813. The multiplier 823 multiplies the output signal of the divider 821 on the output signal of the circuit complex conjugation 815, and its output signal is supplied to the pattern of Association of characters and measurements of BSA 532.

The multiplier 817 multiplies the compressed signal from the output of the multiplier 811, an orthogonal code assigned to the channel traffic, with the aim of separating signal channel traffic. Drive 819 accumulates the signal channel of the traffic coming from the output of the multiplier 817, in the character block to output the desired component data, which is supplied to the divider 821.

In addition, the compressed signal obtained at the output of the multiplier 811, is supplied to the meter-orthogonal noise 630, which measures described above, the power-orthogonal noise and outputs the measured power of the non-orthogonal noise on the divider 821. In this case, the meter is non-orthogonal noise 630 may have a construction shown in Fig.3 or 4.

The divider 821 divides the power of the traffic signal obtained at the output of the drive 819, capacity neoregelia BSA respective tract. The output signal of the divider 821 is supplied to the multiplier 823.

In Fig.9 shows a diagram of combining characters and measurements of BSA 532 corresponding to the second implementation variant, which processes output signals paths having the structure shown in Fig.8. According Fig.9, the adder (or logical element "exclusive OR") 912 sums the values of the data outputs of circuits 521-52M, and the power detector 914 detects the power output of the adder 912 and outputs detektirovaniya power output as the value of the GSP, which is compared with a threshold to generate commands to control power to a straight line.

When measuring PCB according depicted in Fig.9, the mobile station may measure the signal strength on the basis of control commands power transmitted in a straight line. The aforementioned method of measuring the GSP allows you to calculate the capacity of the channel traffic based only on command of the power control after the detection signal of the traffic.

Thus, the components of the non-orthogonal noise, detected by the meter-orthogonal noise, can be used as CPEs, to be measured in the receiving device. In addition t the m to determine, whether to increase or decrease the capacity of a straight line. BSA measured on the respective paths, can be used when adjusting the gain paths.

Although the present invention is described in relation to the use of meter-orthogonal noise of the new construction on synchronal IS-95, it can also be used on low-speed trafc channel or the pilot channel signal with a repetition of the same characters that have similar characteristics in relation to synchronal IS-95. In addition, the meter is non-orthogonal noise new design can be applied in the communication system mdcr 3rd generation.

As described above, in the new communication system mdcr power-orthogonal noise is measured using the direct channel is not carrying any specific information (i.e., voice or data) or a low-speed channel. This provides a way of measuring the non-orthogonal noise in the communication system mdcr 3rd generation. The advantage of the present invention is that it can be used in the communication system, IS-95, not altering the structure of the channel. In addition, a new method of measuring non-orthogonal noise accurately and the measurement of PCB allows to increase the bandwidth of the receiver.

Although the invention are presented and described with respect to preferred variants of its implementation, specialists in this field it is obvious that various changes in form and details, but not beyond the nature and scope of the invention defined in the attached claims.

1. The detecting device non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) having a channel for sending characters to the duration of the second symbol and the channel for the repeated transmission of the same symbol duration of the first character, which includes many of the durations of the second symbol containing the sphincter for compressing multiple-channel signals including the received symbols with the length of the first symbol by using the orthogonal code assigned to the channel for the repeated transmission of the same symbol duration of the first symbol, and the distribution of these characters, the respective at least two or more durations of the second symbol duration of the first symbol, the signal generator to the difference to generate a signal of the difference between the duration of the currently received second symbol, the second symbol and the detector noise for signal detection non-orthogonal noise generated from the signal difference.

2. The detecting device non-orthogonal noise under item 1, characterized in that the sphincter contains the orthogonal demodulator for multiplication and contraction of the received channel signal by using an orthogonal code assigned to the channel for the repeated transmission of the same symbol duration of the first symbol and the drive for accumulation and discharge of compressed signal received in the form of unit records the duration of the first character in the form of a signal with a duration of the second symbol.

3. The detecting device non-orthogonal noise under item 1, characterized in that the signal generator difference includes a delay circuit for delaying the signal symbols received from the output of the sphincter, on the basis of the duration of the second symbol and myCitadel for subtracting the signals of characters of a given channel length of the second symbol received from the output of the sphincter of signals of characters of a given channel with delayed duration of the second symbol.

4. The detecting device non-orthogonal noise under item 1, characterized in that the detector noise contains a squarer for squaring the output signal of the signal generator difference with the issuance of signal component reorthogonalization noise.

5. The detecting device non-orthogonal noise under item 1, characterized in that it further comprises subdescriptor connected to the detector noise for domain downsampling signals issued from a duration border of the first character of the signals coming from the output of the detector noise, so as not to select the signal is non-orthogonal noise, detektirovanii for the duration of the boundaries of the first character.

6. The detecting device non-orthogonal noise under item 1, characterized in that the channel for the repeated transmission of the same symbol duration of the first character represents synchronal, the length of the first symbol represents the symbol duration of synchronal, and the length of the second symbol represents the duration of a channel symbol data.

7. The detecting device non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) having a data channel for transmission of symbols with a duration of the second symbol and synchronal for the repeated transmission of the same symbol duration of the first character, which includes many of the durations of the second symbol containing the multiplier accumulation and delivery of symbols with a duration of the first character of the compressed synchronal in the form of single entry symbol duration of the second symbol, a delay circuit for delaying the output signal of the drive for the duration of the second symbol, myCitadel for generating the difference between the characters on the length of the second symbol received from the output of the drive, and the characters detained by the duration of the second symbol, a squarer for squaring the difference signals to generate signal-orthogonal noise and subdescriptor for domain downsampling characters synchronal issued with the duration of the boundaries of the first character of the character coming from the output of the detector noise, so as not to select the signal is non-orthogonal noise detected within the boundaries of the first character.

8. The detecting device non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) having a given channel, in which the same characters are continually repeated, containing the sphincter to compress the received signal by using an orthogonal code assigned to the channel, with the purpose of generating compressed symbols, the signal generator difference for receiving compressed symbols and detecting the difference between the currently received symbol and a received earlier symbol and the detector noise to detect which of the non-orthogonal noise p. 8, wherein the channel is a pilot channel signal.

10. Method of detecting non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) having a transmission channel symbol duration of the second symbol and the channel for the repeated transmission of the same symbol duration of the first character, which includes many of the durations of the second symbol, which consists in the fact that compresses multiple-channel signals including the received symbols with the length of the first symbol by using the orthogonal code assigned to the channel for the repeated transmission of the same symbol duration of the first symbol, and the distribution of these characters, the respective at least two or more durations of the second symbol duration of the first symbol, generate a signal difference of the duration of the currently received second symbol received from the first symbol, with the duration of the compressed first character and duration previously received second symbol and detects the signal of the non-orthogonal noise generated from the signal difference.

11. Method of detecting non-orthogonal noise on p. 10, featuring inogo code assigned to the channel for transmission of the first character, and the accumulation and delivery of the compressed signal received in the form of unit records the duration of the first character in the form of a signal duration of the second symbol.

12. Method of detecting non-orthogonal noise under item 10, characterized in that for generating difference signals are delay signals from the output of the sphincter, on the basis of duration of the second symbol and the subtraction of the signals of characters of a given channel length of the second symbol received from the output of the sphincter of signals of characters of a given channel with delayed duration of the second symbol.

13. Method of detecting non-orthogonal noise under item 10, characterized in that it further subdirectory using subdescriptor connected to the detector noise, detected noise signals issued with the duration of the bounds of the first symbol from the detected signals of the noise so as not to select the signal is non-orthogonal noise, detektirovanii for the duration of the boundaries of the first character.

14. Method of detecting non-orthogonal noise under item 10, characterized in that the first symbol is a symbol of synchronal, deletelines dstanley a duration of a channel symbol data.

15. Method of detecting non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) with this channel, which continuously repeat the same character, namely, that compress the received signal by using an orthogonal code assigned to the channel, with the purpose of generating compressed characters, take a short characters and generate the difference between the currently received symbol and a received earlier symbol and detects the generated difference signals with a signal-orthogonal noise.

16. Method of detecting non-orthogonal noise under item 15, wherein the channel is a pilot channel signal.

17. The detecting device non-orthogonal noise for communication systems, multiple access, code-division multiplexing (mdcr) having a transmission channel symbol duration of the second symbol and the channel for the repeated transmission of the same symbol duration of the first character, which includes many of the durations of the second symbol containing the base station device, includes a channel encoder for encoding the signal channel for the repeated transmission of the same idle insert template in the output signal of the channel encoder with the aim of detecting non-orthogonal noise and expander for expanding and outputting the output signal of the circuit inserts a template by using the orthogonal code for the corresponding channel, the sphincter for compressing multiple-channel signals including the received symbols with the length of the first symbol by using the orthogonal code assigned to the channel for the repeated transmission of the same symbol duration of the first symbol, and outputting these characters corresponding to at least two or more durations of the second symbol duration of the first symbol, a diagram of the correct template to fix the specific template from the compressed signal symbol, the signal generator to the difference to generate a signal of the difference between the duration of the currently received second symbol received from the first character, duration of the compressed first character and duration previously received second symbol and the detector noise for signal detection non-orthogonal noise generated from the signal difference.

18. The detecting device non-orthogonal noise under item 17, characterized in that it further comprises subdescriptor connected to the detector noise for domain downsampling signals issued from a duration border of the first character of the signals coming from the output of the detector noise, so as not to select the signal is non-orthogonal noise, detektirovanii mind on p. 18, characterized in that the channel is synchronal, the length of the first symbol represents the symbol duration of synchronal, and the length of the second symbol represents the symbol duration of the data channel.

 

Same patents:

The invention relates to a device and method of coding for mobile communications and more particularly to a device and method for producing the Quaternary complex quasiorthogonal codes and further use of these developed Quaternary complex quasiorthogonal codes to generate signals channel expansion

The invention relates to digital communication systems in which data is variable speed transmitted without the indication of speed transmission data and received in a coherent receiver, in which the transfer rate of data transferred is determined for use in data processing

The invention relates to the field of generation scramblers codes in mobile communication system

The invention relates to communication systems, multiple access, code-division multiplexing, and more particularly to a device and method for communication control in selected time intervals

The invention relates to telecommunication systems

The invention relates to a device and method channel expansion for communication systems, multiple access, code-division multiplexing (mdcr) having different coefficients of expansion of the spectrum

The invention relates to telecommunication systems and can be used for calibration of transceivers

The invention relates to a base station receiver for a mobile communication system and method of measuring the noise power of the received signal

The invention relates to electrical engineering and can be used for technical control signals existing and newly created systems due to the complex structure of signals

The invention relates to a method of fault detection receiving radio frequency channel in a base station in a digital cellular communication system with mdcr

The invention relates to techniques for radio communication and is intended for use in radio transmitting devices of high reliability

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

Up!