Method for detecting mutual time mismatch of base station signals in cellular radio communication system

FIELD: radio engineering.

SUBSTANCE: proposed method used for detecting mutual time mismatch of base stations in cellular radio communication systems, for instance in cellular radio communication systems of third generation, to detect location of mobile user includes joint statistical processing of all qualified time mismatch signals of base stations so as to determine mutual time mismatch of signals coming from any pair of base stations of radio communication system.

EFFECT: enhanced precision.

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The invention relates to the field of radio engineering, in particular to a method of determining the relative temporal error signals of base stations (BS) in a cellular communication system, and can be used, for example, in systems of cellular communication of the third generation in determining the location of megapixels (MP).

BS in cellular radio code division multiplexing (CDMA - Code Division Multiple Access) third generation, for example, in the mode of frequency duplex (FDD - Frequency Division Duplex) in the 3GPP system (3rdGeneration Partnership Project - a partnership project for the development of communication systems of the third generation)are not synchronous with each other. Under the synchronicity BS here refers to the simultaneous transmission of different signals BS stations in the direct channel. This poses the problem of determining the relative temporal error signal BS.

The definition of mutual temporary mismatch signal BS is necessary when determining the location of the MP, as well as to reduce the time and hardware costs when selecting signals BS mobile stations and to reduce the amount of stored data during the procedure soft relay transmission (procedure soft relay transmission described in patent RU No. 2137314 [1]).

Known technical solution described in the article "Synergies Between Satellite Navigation and Location Services of Terrestrial Mobile Communication", G. Hein, B. Eissfeller, V. Oehler, Jon O. Winkel Institute of Geodesy and Navigation, University FAF Munich, ION GPS 2000, 19-22 September 2000, Salt Lake City, UT [2], which proposes to determine the mutual temporal mismatches BS to use the measuring device that receives signals from base stations and determining their mutual time of the error.

The disadvantages of the known technical solutions are the low accuracy of determination of the mutual time difference of signals of the base stations associated with indirect multipath propagation of the signals from the BS to the measuring devices, as well as the inability to obtain mutual temporal misalignment signals BS, direct measurement for which are not available for some reason.

Closest to the technical nature of the decision to the claimed method is the solution described in 3GPP TS 25.305 V3.7.0, 2001 12, "Stage 2 Functional Specification of UE Positioning in UTRAN" [3].

This technical solution is proposed to receive signals BS, mutual temporary misalignment between which it is necessary to determine on the measuring device, located at a position with known coordinates. For a better understanding of the operation of the process define the time of the error signals of the base stations in the cellular communication system according to the standard [3] see figure 1.

Figure 1 shows the BS 1 and 2, the mutual temporal mismatch of signals that should be determined, the measuring device 3, controller 4 BS and the center 5 location MP.

Carry out the known method as follows.

On the measuring device 3 receive signal BS 1 and the signal of the BS 2 and carry out the specified number of consecutive measurements of their temporary error.

Average consecutive measurements temporary error signals BS 1 and 2, receiving average measured temporal mismatch of data signals BS.

Determine on the measuring device 3, the accuracy of the averaged measured temporal mismatch, for example, in relation signal/noise signals BS 1 and 2. However, as the accuracy of the averaged measured temporal mismatch choose a value linearly related to the error of the averaged measured temporary error relative to the true value of the time of the error signals BS 1 and 2 when taking on the measuring device 3.

Transmit the averaged measured temporal misalignment signals BS 1 and 2 and the accuracy of the measuring device 3 BS 1 or 2 by using the existing in the communication system of the radio interface and the corresponding BS - controller 4 BS via a wired communication line connecting the controller 4 BS with this BS.

The controller 4 BS on the averaged measured temporal misalignment signals BS 1 and 2 define the mutual temporal misalignment signals BS 1 is 2 based on the known relative position of BS 1 and 2 and the measuring device 3.

Received mutual temporal misalignment signals BS 1 and 2 and its accuracy is passed from the controller 4 BS on center 5 location MP for future use. For transmission using a wired communication line connecting the controller 4 BS and the center 5 location MP.

Thus, according to the description mentioned known method of determining the relative temporal error signals of the base stations in the cellular communication system, we can identify the following main features of its implementation:

carry on each measuring device serial measurements temporary error signals of at least two base stations, signals which are in this measuring device, and the average measurement data temporary error, receiving average measured temporal mismatch of the signals from these base stations, determine its accuracy;

transmit the averaged measured time error and accuracy with each measuring device to one of the base stations, the signals which are in this measuring device, and with her on the BS controller that is running which it is located;

determine on each controller BS mutual temporary misalignment of the signals of each pair of BS on the averaged measured temporal misalignment of these signals is BS.

The known method has the following major drawbacks.

First, the definition of mutual temporary error signals BS on the averaged measured time offset of the signals of these BS may not be accurate enough.

This is because the evaluation of the mutual temporal mismatch signals BS influenced by noise errors, intra-system interference and multipath errors. Thus, the time difference is to direct the distribution of signals from the BS to the measuring device can be taken into account, using the known coordinates of the base stations and measuring devices.

Let Δt1->2- evaluation of the mutual temporal mismatch signal pair BS, namely the first signal BS pairs relative to the signal of the second BS of the pair;- the true meaning of mutual temporary error signals of the pair of BS.

Then the difference between the value Δt1→2and the true value ofwill be equal to

Δt1→21→2noisemultipath,1multipath,2, (1)

where εnoiseerror defined by the noise and system noise,

εmultipath,1error multipath first BS, equal to the difference between the real time applications the signal of the first BS to the measuring device and the known time on the direct distribution of its signal to the measuring device,

εmultipath,2error multipath second BS, equal to the difference between the real time distribution of the signal of the second BS to the measuring device and the known time on the direct distribution of its signal to the measuring device.

Averaging the value of the mutual temporal mismatch Δt1→2signals of the first and second BS on the measuring device reduces the magnitude of the noise error εnoise. The difference of multipath errors εmultipath,1- εmultipath,2remains unchanged, as determined by the mutual location of the first and second base stations and measuring devices, as well as surrounding objects such as buildings, mountains, hills, etc.

Thus, the accuracy of the proposed prototype of the method of determining the relative temporal error signal BS may be insufficient, for example, for the purposes of locations.

Secondly, it is possible that between some BS no direct measurement of the temporary mismatch of their signals, and need to know their mutual temporal mismatch.

This situation illustrates figure 2. Figure 2 shows the BS 6, 7 and 8, the measuring devices 9 and 10 and the building 11.

BS 6 transmits first and second signals, which represent its group signal.

BS 7 transmits the first and the WTO is the second signals, which represent its group signal.

BS 8 transmits first and second signals, which represent its group signal.

Under the group signal BS signal transmitted from the base stations and containing channels Synchronization Channel (SCH) - channel synchronization, Common Pilot Channel (CPICH) common pilot channel Primary Common Control Physical Channel (P-CCPCH) - primary General service physical channel, and other channels.

The measuring device 9 receives the first signals BS 6 and 7, and measures their temporary error.

The measuring device 10 receives the second signal BS 7 and the first signal BS and measures 8 temporary error.

The second signal BS 6 is blocked by the building 11 and cannot be taken on the measuring device 10 and the second signal BS 8 building blocks 11 and cannot be taken on the measuring device 9.

Thus, direct measurement of a temporal mismatch signals BS 6 and 8 are not available and known the method according to the 3GPP standard does not allow to determine their mutual temporal mismatch.

The problem to address with the inventive method, is the definition of mutual temporary error signals any pair of BS radio system and improving the accuracy of determining the relative temporal error signal BS.

The solution of this problem is due to the fact that h is about in the way of determining the relative temporal error signals of the base stations in the cellular communication system, when using controllers BS, BS, measuring device and the Central location of the MP, and each BS is under the control of a single controller BS, and each measuring device receive signals from at least two base stations, and the signal from each BS take on at least one measuring device, namely, that:

carry on each measuring device serial measurements temporary error signals of at least two base stations, signals which are in this measuring device, and the average measurement data temporary error, receiving average measured temporal mismatch of the signals from these base stations, determine its accuracy,

transmit the averaged measured time error and accuracy with each measuring device to one of the base stations, the signals which are in this measuring device, and from it - to the controller of BS that it is,

according to the invention:

deducted on each controller BS from the averaged measured temporal misalignment of each pair of BS-known difference between the delays of the direct propagation of signals from the first BS and the second BS of this pair to the measuring device, which was obtained this average measured lying to the TES misalignment, receiving updated temporary misalignment of the signals of the pair of BS,

passed all specified time of the error signals BS and accuracy with each controller BS in the center of the positioning MP,

form for each pair of BS the set of all possible paths from the first BS to the second BS pairs

form for each path, each formed of multiple vector path listing updated time of the error signals of the base stations involved in this path, and determine its metric

for each pair of BS from the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways,

form for each pair of BS weight of the adjusted time difference of signals of the base stations using the selected group, etc) is the moat ways and the resulting accuracy of the adjusted time difference of the signals BS

define mutual temporary misalignment of the signals of each pair of BS as a weighted sum of all the adjusted time difference of the signals BS with weights adjusted time difference of the signals BS generated for a given BS.

Moreover, for example, when forming, for each pair of BS the set of all possible ways to form each path of the set, identifying the vertices of this path BS, the first top - the beginning of this journey - the first BS, the second vertex of this path is one of the base stations adjacent to the base station, which is the first vertex of this path, with the neighboring BS consider these two base stations, for which you received the updated temporary misalignment of their signals, the n-th vertex of this path is one of the base stations adjacent to the base station, which is the (n-1)-th vertex of the path, where n accepts values from 2 to N - 1, and N is the number of vertices in this path, the latest top - end of this road is the second BS, the direction of the passage of this path from the first BS to the second BS and each BS may be a vertex of this path no more than once.

When creating vector paths for each path, each formed of multiple numbers, all of the adjusted time of the error signals BS numbers from 1 to P, where P is the number of the obtained adjusted time difference of the signals BS, specify the length of each vector paths equal to the number of UTO is United and temporal errors P, define the p-th element of each vector path, where p takes values from 1 to P, is equal to 1 if the given path has an edge corresponding to the p-th adjusted time offset, and the direction of passage of this edge in the path coincides with the direction of the p-th adjusted temporary mismatch, where the direction of the p-th adjusted temporary misalignment of ip-Oh BS relative to the jp-Oh BS are determined from the ip-Oh

BS to jpOh BS, -1 if the given path is an edge corresponding to the p-th adjusted time offset, and the direction of the passage of this edge in a path opposite to the direction of the p-th adjusted temporary error, otherwise 0.

The metric vector path is defined as the sum of the products of modules of the elements of this vector paths on the square of the accuracy of the adjusted temporal mismatch, corresponding to the given element.

When forming, for each pair of BS weights of the adjusted temporal errors form the matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of BS, obtained by separate vectors ways, using selected for this pair BS group vectors ways and accuracy of the adjusted temporal errors, and the size of the matrix of correlations equal to [R×R], where R - number of the vectors of the paths in the selected group, the matrix element of the correlation index r1and r2where r1and r2take values from 1 to R, is equal to the sum of products of elements of r1on vector paths to elements of r2-th vector of the path and on the square of the accuracy of the adjusted temporal mismatch, the corresponding data elements; form a matrix, inverse of the formed matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of BS; using generated for this pair BS group vector paths and matrix inverse to formed the matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of BS, form R weights of the adjusted time difference of the pair of BS so that the weight of the p-th adjusted temporary misalignment apequal to

where- the element of the matrix inverse to the generated matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of BS, index r1and r2,

- R-th element of r1on the vector path of the selected group,

- R-th element of r2on the vector path of the selected group.

The inventive method of determining the relative temporal error signal is s BS in the cellular communication system is different from the known technical solutions, which together allow for the definition of mutual temporary error signals any pair of BS radio system and to improve the accuracy of determining the relative temporal error signal BS.

These differences are as follows.

Deducted on each controller BS from the averaged measured temporal misalignment of each pair of BS-known difference between the delays of the direct propagation of signals from the first BS and the second BS of this pair to the measuring device, which was obtained this average measured temporal misalignment, receiving updated temporary misalignment of the signals of the pair of BS.

Passed all specified time of the error signals BS and accuracy with each controller BS in the center location of the MP.

Form for each pair of BS the set of all possible paths from the first BS to the second BS pairs.

Form for each path, each formed of multiple vector path listing updated time of the error signals of the base stations involved in this path, and determine the metric.

For each pair of BS from the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of use is each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors ways, obtained from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways.

Form for each pair of BS weight of the adjusted time difference of signals of the base stations using the selected group of vectors ways and the resulting accuracy of the adjusted time difference of the signals BS.

Define mutual temporary misalignment of the signals of each pair of BS as a weighted sum of all the adjusted time difference of the signals BS with weights adjusted time difference of the signals BS generated for a given BS.

Description of the invention is illustrated by examples and drawings.

Figure 1 illustrates the operation of the method according to [3].

Figure 2 shows such an arrangement of base stations, measuring devices and buildings, in which between two base stations do not have a direct measurement of a temporal mismatch of their signals.

Figure 3 illustrates the communication system, for example, which considered the idea of the proposed method.

Figure 4 shows an example of performing a measurement device.

Figure 5 illustrates a graph the vertices of which are BS, and ribs - specified time of the error signals BS.

figure 6 shows the formation of paths from the first BS to the second BS pairs, for which it is necessary to determine mutual temporary misalignment of their signals.

Figure 7 shows the algorithm of the overall work of the method.

On Fig shows an example of the execution of that part of the BS that is necessary to perform the claimed method.

Fig.9 illustrates the BS.

Figure 10 shows an example of the execution of that part of the BS controller, which is necessary to perform the claimed method.

11 illustrates the operation of the BS controller.

On Fig shows an example of the execution of that part of the center location of the MP, which is necessary for the implementation of the proposed method.

Fig illustrates the algorithm of work of the center location of the MP.

Consider the work of the proposed method of determining the relative temporal error signals of the base stations in the cellular communication system.

First let's explain the idea of the proposed method on the example.

Figure 3 shows the five BS 12, 13, 14, 15 and 16, four measuring devices 17, 18, 19 and 20, the controller 21 of the base stations and the center 22 of the positioning MP.

BS 12 transmits a signal, which represents its group signal.

BS 13 transmits first and second signals, which represent its group signal.

BS 14 transmits first and second signals, which represent its group signal.

BS 15 transmits first and second signals that PR is astavliaut its a group signal.

BS 16 transmits first and second signals, which represent its group signal.

Under the group signal BS should understand the signals transmitted from base stations and containing channels Synchronization Channel (SCH) - channel synchronization, Common Pilot Channel (CPICH) common pilot channel Primary Common Control Physical Channel (P-CCPCH) - primary General service physical channel, and other channels.

On the measuring device 17 signal BS 12 and the first signal of the BS 13, perform consecutive measurements temporary misalignment of the first signal of the BS 13 relative to the signal BS 12, average measurement data temporary error, receiving average measured temporal misalignment Δt13→12,17the first signal of the BS 13 relative to the signal BS 12, and determine its accuracy σ13→12,17.

On the measuring device 17 also receive the first signal of the BS 13 and the first signal of the BS 14, perform consecutive measurements temporary misalignment of the first signal of the BS 13 relative to the first signal BS 14, the average measurement data temporary error, receiving average measured temporal misalignment Δt13→14,17the first signal of the BS 13 relative to the first signal BS 14, and determine its accuracy σ13→14,17.

On the measuring device 17 also accept signal BS 12 lane and the output signal of the BS 14, perform consecutive measurements temporary mismatch signal BS 12 relative to the first signal BS 14, the average measurement data temporary error, receiving average measured temporal misalignment Δt12→14,17signal BS 12 relative to the first signal BS 14, and determine its accuracy σ12→14,17.

On the measuring device 20 to receive the first signals BS 15 and 16, provide a consistent measure of temporary misalignment of the first signal BS 16 relative to the first signal BS 15, average measurement data temporary error, receiving average measured temporal misalignment Δt16→15,20signal of the first BS 16 relative to the first signal BS 15, and determine its accuracy σ16→15,20.

On the measuring device 18 receive the second signals BS 13 and 15, perform consecutive measurements temporary misalignment of the second signal BS 15 relative to the second signal of the BS 13, the average measurement data temporary error, receiving average measured temporal misalignment Δt15→of 13.18the second signal BS 15 relative to the second signal of the BS 13, and determine its accuracy σ15→of 13.18.

On the measuring device 19 take second signals BS 14 and 16, carried out last the sequential measurement of a temporary mismatch of the second signal of the BS 14 relative to the second signal BS 16, average measurement data temporary error, receiving average measured temporal misalignment Δt14→16,19the second signal of the BS 14 relative to the second signal BS 16, and determines its accuracy σ14→16,19.

Consider, for example, how can I get averaged temporal misalignment Δt14→16,19the second signal of the BS 14 relative to the second signal BS 16 and determine its accuracy σ14→16,19.

Let the communication system is a 3GPP system (3rdGeneration Partnership Project - a partnership project to develop standards for communication systems third generation) mode frequency duplex. Cell broadcast radio signals containing the channel Synchronization Channel (SCH) - channel synchronization, Common Pilot Channel (CPICH) common pilot channel Primary Common Control Physical Channel (P-CCPCH) - primary General service physical channel.

Figure 4 shows an example of executing a measuring device for determining the averaged measured temporal mismatch signals BS.

Measuring device for determining the averaged measured temporal mismatch signals 14-th and 16-th BS in accordance with figure 4 contains the antenna 23, the analog receiver 24, block 25 search group signal 14th BS, unit 26 decodes primary General service physical channel 14-th BS, block 27 search for groups, the first signal 16-th BS, block 28 decoding primary General service physical channel 16-th BS and the block 29 determine the average measured temporal mismatch signals 14-th and 16-th BS, and the input of the antenna 23 is the input of the measuring device, the output of the antenna 23 is connected to the analog receiver 24, the output of which is connected to the input unit 25 searches the group of signal 14-th BS and the block 27 search group signal 16-th BS and the first input unit 26 decodes primary General service physical channel 14-th BS and the block 28 decoding primary General service physical channel 16 Oh BS, the output unit 25 searches the group of signal 14th BS connected to the first input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS and the second input unit 26 decodes primary General service physical channel 14-th BS, the output of which is connected with the second input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS, the output unit 27 of the search group signal 16-th BS is connected with the third input unit 29 to determine the averaged measured temporal mismatch signals of the 14th and 16-th BS and the second input unit 28 decoding primary General service physical channel 16-th BS, the output of which is connected with Thu rtim input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS, the output which is the output of the measuring device.

When this analog receiver may be performed, for example, as described in US patent No. 5103459 “System and Method for Generating Signal Waveforms in a CDMA Cellular Telephone System”, [4].

Unit 25 searches the group of signal 14-th BS and the block 27 search group signal 16th BS may be performed, for example, as described in 3GPP TS 25.214 V3.9.0 (2001-12), Physical layer procedures (FDD), Annex C: Cell search procedure [5] and Yi-Pin Eric Wang, and Tony Ottosson, “Cell Search in W-CDMA”, IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, VOL. 18, NO. 8, AUGUST 2000 [6].

Unit 26 decodes primary General service physical channel 14-th BS and the block 28 decoding primary General service physical channel 16-th BS may be performed, for example, similar to the coherent RAKE receivers described in Sadayuki ABETA, Mamoru SAWAHASHI, and Fumiyuki ADACHI, “Performance Comparison between Time-Multiplexed Pilot Channel and Parallel Pilot Channel for Coherent Rake Combining in DS-CDMA Mobile Radio”, IEICE Trans. Commun., Vol. E81-B, No. 7, July 1998 [7].

The input signal measuring device containing group signals BS 14 BS 16, is fed to the input of the antenna 23, the output of which is fed to the input of the analog receiver 24.

From the output of the analog receiver 24 signal is received at the input unit 25 searches the group of signal 14-th BS and the block 27 search group signal 16-th BS and the input unit 26 decodes primary General service physical channel 14-th BS and the block 28 zakodirovana the primary General service physical channel 16-th BS.

Unit 25 searches the group of signal 14th BS on the sync channel and common pilot channel search group signal 14th BS within the uncertainty ranges in size 38400 chips pseudo-random sequence (SRP). Under the chip SRP should understand the elementary time interval pseudo-random sequence.

Assume that the signal 14th BS was found at position R1. In addition, the block 25 search group signal 14th BS determines the number of primary scrambling code 14-th BS.

The signal containing the value found temporary positions P1signal 14th BS comes from the output of block 25 search group signal 14-th BS to the first input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS and the second input unit 26 decodes primary General service physical channel 14-th BS. Also from the output unit 25 searches the group of signal 14-th BS to the second input unit 26 decodes channel primary common service physical channel 14-th BS receives the signal containing the number of primary scrambling code 14-th BS.

Unit 26 decodes primary General service physical channel 14-th BS using the received value is found temporary positions P1signal 14-th BS and the resulting number of primary scrambling to the Yes 14-th BS, performs diskriminirovaniya, demodulation and decoding of the primary General service physical channel, receiving the value of the System Frame Number (SFN) is a system frame number 14-th BS at the time of transmission of the first chip SRP of this frame. We denote this value SFN 14th BS through SFN1.

The signal containing the matching value SFN1SFN 14th BS comes from the output unit 26 decodes primary General service physical channel 14-th BS to the second input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS.

Block 27 search group signal 16th, cell broadcast channel synchronization and common pilot channel search group signal 16th BS within the uncertainty ranges in size 38400 chips SRP. Assume that the signal 16th BC was found at position R2. In addition, the block 27 search group signal 16th BS determines the number of primary scrambling code 16-th BS.

The signal containing the value found temporary positions P2signal 16th BS comes from the output unit 27 of the search group signal 16-th BS to the third input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS and the second input unit 28 decoding primary General service physical channel 16-th BS. Also from the output unit 27 of the search group with whom drove the 16-th BS to the second input unit 28 decoding primary General service physical channel 16-th BS signal, contains the number of primary scrambling code 16-th BS.

Block 28 decoding primary General service physical channel 16-th BS using the received value is found temporary positions P2signal 16-th BS and the resulting number of primary scrambling code 16-th BS, performs diskriminirovaniya, demodulation and decoding of the primary General service physical channel, to obtain a value of SFN 16th BS at the time of transmission of the first chip SRP of this frame. We denote this value SFN 16th BS through SFN2.

The signal containing the matching value SFN2SFN 16th BS comes from the output of block 28 decoding primary General service physical channel 16-th BS to the fourth input unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS.

Unit 29 to determine the averaged measured temporal mismatch signals 14-th and 16-th BS determines the measured temporal mismatch signal of the BS 14 relative to the signal BS 16 by the formula

(SFN1-SFN2Tfr+(P1-P2Tch, (3)

where Tfr- the duration of one frame signal BS in the 3GPP system, equal to 10 MS,

Tch- the duration of one chip of the SRP, is equal to 1/(3,84·106with or about 260 NS.

Unit 29 to determine the averaged measured temporary Rassolov is of the signals 14-th and 16-th BS can average several received consistently measured time difference of the signal of the BS 14 relative to the signal BS 16, receiving average measured temporal mismatch signal of the BS 14 relative to the signal BS 16. The block 29 may be implemented on a processor for digital signal processing by the above algorithm.

If all measuring devices shall determine the averaged measured time difference of signals of the BS using the same methods with the same number of averages, then the accuracy of all the averaged measured time difference of signals of the BS can determine the same and equal to, for example, 100 NS. In General, when more complex and more accurate ways of determining the averaged measured time difference of signals BS or different number of averages at different measuring devices accuracy of different averaged measured time difference of signals BS will be different and will depend, for example, from signal to noise signals, the averaged measured temporal variance of which is determined by, and/or the number of averagings.

Transmit the averaged measured time error Δt13→12,17that Δt13→14,17and Δt12→14,17and their accuracy σ13→12,17that σ13→14,17and σ12→14,17with the measuring device 17 on the BS 13, and with it to the controller 21 BS.

Transmit the averaged measured the belt misalignment Δ t15→of 13.18and its accuracy σ15→of 13.18with the measuring device 18 on the BS 13, and with it to the controller 21 BS.

Transmit the averaged measured temporal misalignment Δt14→16,19and its accuracy σ14→16,19with the measuring device 19 on the BS 14, and with it to the controller 21 BS.

Transmit the averaged measured temporal misalignment Δt16→15,20and its accuracy σ16→15,20with the measuring device 20 on the BS 15, and with it to the controller 21 BS.

To transfer the averaged measured time difference of signals of the base stations and their accuracy with measuring devices on the BS uses the existing cellular system radio interface, and to transmit to the base station controller BTS - wire communication line connecting the BS to the BS controller.

In the BS controller 21 is subtracted from the averaged measured temporal mismatch Δt13→12,17known value of the difference of the delays for direct distribution of signals from the BS 13 and from the BS 12 to the measuring device 17, receiving the adjusted temporary mismatchthe signal of the BS 13 relative to the signal BS 12.

Let τ13→17the delay spread of the signal from the BS 13 to the measuring device 17 through τ12→17the delay distribution is chased from the BS 12 to the measuring device 17.

Let us denote the coordinates of the BS 12 through the x12, y12, z12coordinates BS 13 through x13, y13, z13and the coordinates of the measuring device 17 through the x17, y17, z17,.

The coordinates of the BS and the measuring device can be determined, for example, by means of a receiver of signals from satellites of a global navigation system GPS and/or GLONASS.

Then

where C is the speed of light.

Revised temporary mismatchthe signal of the BS 13 relative to the signal BS 12 is equal to

The accuracy of the adjusted temporal mismatchequal accuracy averaged measured temporal mismatch Δt13→12,17and equal to σ13→12,17.

Similarly determine the adjusted temporary mismatchthe signal of the BS 13 relative to the signal of the BS 14, the adjusted temporary mismatchsignal BS 12 relative to the signal of the BS 14, the adjusted temporary mismatchsignal BS 15 relative to the signal of the BS 13, the adjusted temporary mismatchsignal BS 14 relative to the signal BS 16 and ut is canoe temporary mismatch signal BS 16 relative to the signal BS 15.

Transmit the updated temporary mismatch,,,,andand their accuracy σ13→12,17that σ13→14,17that σ12→14,17that σ15→of 13.18that σ14→16,19and σ16→15,20from the controller 21 BS on the center 22 of the positioning MP.

For transmission using a wired communication line connecting the controller 21 of the base stations and the center 22 of the positioning MP.

Suppose you want to determine the mutual temporal mismatchthe signal of the BS 13 relative to the signal of the BS 14.

We denote the true value of the mutual temporal mismatch signal BS 13 relative to the signal of the BS 14 through Δt13→14, signal BS 13 relative to the signal BS 12 through Δt13→12, signal BS 12 relative to the signal of the BS 14 through Δt12→14, signal BS 15 relative to the signal of the BS 13 through Δt15→13signal BS 14 relative to the signal BS 16 through Δt14→16and signal BS 16 relative to the signal BS 15 Δt16→15.

As Δt13→14=Δt13→12+Δt12→14and Δt13→14=4 t15→13-Δt16→15-Δt14→16the mutual temporal mismatchcan be estimated in three ways:

,

and

.

Imagine the configuration of the BS 12 to 16 and refined temporal errors,,,,andin the form of a graph (see figure 5).

The vertices of the graph obtained are BS 12-16 and edges are adjusted temporary mismatch,,,,and.

Ask the direction of the graph edges that are coincident with the directions of updated and temporal errors. For example, the edge between the BS 13 BS 14 corresponds to the specified temporary mismatchthe signal of the BS 13 relative to the signal of the BS 14 and, respectively, sent from the BS 13 BS 14.

Three evaluations Δt13→14,17that Δt13→12,17+Δt12→14,17and -Δt15→of 13.18-Δt16→15,20-Δt14→16,19mutual in the temporal mismatch three paths of the graph from the BS 13 to the BS 14, shown in Fig.6.

These three paths represent the set of all possible paths from the BS 13 to the BS 14.

The vertices of each of the data paths are part of the BS, which are the vertices of the graph.

The first vertex of each of the data paths is BS 13 and the last peak - BS 14.

The second vertex of the first path is BS 12 adjacent to the first peak - BS 13.

The second peak third way is BS 15 adjacent to the first peak - BS 13. The third top third way is BS 16, adjacent the second top third way - BS 15.

Thus the neighboring BS determines such BS for which you received the updated temporary misalignment of their signals. For example, BS 15 and BS 16 are adjacent, so as to obtain accurate temporal mismatchtheir signals.

The direction of the passage of each of the data paths are determined from the BS 13 to the BS 14.

Just received six refined and temporal errors. Let's number them 1 through 6, for example, as follows:

Δt1=,

Δt2=,

Δt3=,

Δt4=,

Δt5=,

Δt6= .

We introduce the concept vector of the adjusted temporal errors and vector accuracy of the adjusted temporal errors.

Under the vector of the adjusted temporal errorsof length equal to six the number of the received specified temporal errors - will understand vector

where the p-th element Δtpvectorwhere R takes values from 1 to 6, is equal to p-th adjusted time offset signals BS.

Under the vector accuracy of the adjusted temporal errorsof length equal to six the number of the obtained adjusted time difference, we will understand the vector

where the p-th element σpvectorwhere R takes values from 1 to 6, is equal to the accuracy of the p-th adjusted temporary error signals BS.

Form for each path from the generated set of all possible paths from the BS 13 to the BS 14 vector path listing updated time of the error signals of the base stations included in the given path.

Specify the length of each vector of the path equal to six the number of the adjusted temporal errors.

Define the R-th element and on vector paths, where p takes the value is of from 1 to 6, and takes values from 1 to 3 equal to 1 if the given path has an edge corresponding to the p-th adjusted time offset, and the direction of the passage of this rib R of the path coincides with the direction of the p-th adjusted temporary error, -1 if the given path is an edge corresponding to the p-th adjusted time offset, and the direction of the passage of this edge in a path opposite to the direction of the p-th adjusted temporary error, otherwise 0.

The result is three vector,andcorresponding to the three paths from the BS 13 to the BS 14, which is equal to

Define the metric and on vector paths, where takes values from 1 to 3 equal to

where- R-th element and on vector paths,

σp- R-th element of the vectoraccuracy of the adjusted time difference of the signals BS.

So, the metric of the first vector pathequalthe second metric vectorequal the third metric vectorequal.

From the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways.

These three criterion groups of vectors will be explained more later.

In this example, the selected group of vectors ways coincides with the set of all possible vectors of paths from the BS 13 to the BS 14.

Using the vector of the adjusted temporal errorsand three of the formed vector paths,andyou can create three estimates of the magnitude of the mutual temporal mismatchthe signal of the BS 13 consider is Ino signal of the BS 14. R-th estimate of the mutual temporal mismatchwhere r takes values from 1 to 3 equal to

where- R-th element of g on the vector path,

Δtp- the p-th adjusted temporary mismatch (p-th element of the vector of the adjusted temporal errors).

Error εrthe r-th estimation of the mutual temporal mismatchthe true value of the time of the error Δt13->14the signal of the BS 13 relative to the signal of the BS 14 is equal to

Using vector accuracy of the adjusted time difference of the signals BSand three of the formed vector,andform the matrix of correlations between the errors of the estimates of the mutual temporal mismatchreceived on separate vectors ways.

The size of the matrix of correlations equal to [3×3]. The matrix element of the correlation index r1and r2where r1and r2take values from 1 to 3 equal to

where the correlation coefficient between the errorr1first mutual evaluation of the temporary mismatchand errorr2first mutual evaluation of the temporary mismatch,

- R-th element of r1on vector paths,

- R-th element of r2on vector paths.

In this example, the correlation matrixwill be equal to

In the General case, the correlation matrix is non-diagonal.

Form the matrixthat is the opposite of the formed correlation matrix. In this example, the matrixthat is the opposite of the formed correlation matrixequal to

Using the generated group of vectors of paths consisting of vectors ways,and, and formed the matrixthat is the opposite of the formed correlation matrixform six scales from ognennyh temporal errors so that the weight of the p-th adjusted temporary error andpwhere R takes values from 1 to 6, is equal to

whereelement formed matrixindex r1and r2where r1and r2take values from 1 to 3,

- R-th element of r1on vector paths,

- R-th element of r2on vector paths.

In this example, the weight of the adjusted temporal errors equal to

Define mutual temporal mismatchthe signal of the BS 13 relative to the signal of the BS 14

i.e. as a weighted sum of all the adjusted temporal errors Δtpsignals BS with weights apthe adjusted time difference of the signals BS, where p takes values from 1 to 6.

Consider now the system of cellular communication, including controllers, BS, BS, measuring device and the Central location of the MP, and each BS is under the control of a single controller BS, and each izmeritelnaya receive signals from at least two base stations, and the signal from each BS take on at least one measuring device.

Each BS transmits a signal, which represents its group signal.

Carry on each measuring device serial measurements temporary error signals of at least two base stations, signals which are in this measuring device, and the average measurement data temporary error, receiving average measured temporal mismatch of the signals from these base stations, determine its accuracy.

Transmit the averaged measured time error and accuracy with each measuring device to one of the base stations, the signals which are in this measuring device, and from it - to the controller of BS that it is.

Deducted on each controller BS from the averaged measured temporal misalignment of each pair of BS-known difference between the delays of the direct propagation of signals from the first BS and the second BS of this pair to the measuring device, which was obtained this average measured temporal misalignment, receiving updated temporary misalignment of the signals of the pair of BS.

Passed all specified time of the error signals BS and accuracy with each controller BS in the center determine the place which the provisions of the MP.

Form for each pair of BS the set of all possible paths from the first BS to the second BS pairs as follows.

Let the cellular communication system includes L BS.

Enumerate all the BS numbers from 1 to L.

We define the notion of a neighboring BS.

BS is neighboring with j, where i and j take the values 1 to L if the received at least one specified temporary mismatch signal BS relative signal j. In this case, if the obtained p the adjusted time difference of the signal BS relative signal j, data BS is R times adjacent to each other.

Form for each set of neighboring BS BS as follows.

Let the number of base stations adjacent to BC, where g takes values 1 to L, is equal to Qi. We denote the set of base stations neighboring BS throughwhere qiinitialmanywhere qiaccepts values from 1 to Q1- the number q1Oh BS, neighboring BS. However, if BS is R times the neighboring BS, it includes many, R times.

Just form the L setsthe neighboring BS.

Form for each pair of BS the set of all possible paths from the first BS to the second BS pairs as follows.

May need to find all paths is t BS mto jmwhere imand jmtake the values from 1 to L. This is consistent bust:

all BS adjacent to BCm,

all of the base stations of the neighboring base stations adjacent to BCm,

all of the base stations of the neighboring base stations, the neighboring base stations adjacent to BCm,

etc.

Moreover, a sequential scan is performed in such a manner that:

sequence enumeration is uniquely determined by the sequence of rooms BSin the generated setsneighboring BS;

the sequential search in each path only add those numbers BS that it is not met.

In the General case, the length of the resulting serial search paths will be different, but the length of each path is less than or equal to the number of BS L.

The sequential search each path represents a sequence number of BS in the way.

The first element of the sequence number BS of each of the generated paths are equal to im. The last element of the sequence number BS of each of the generated paths can be equal to jmor not. Of all the generated paths leave only those that end in jmi.e. the last element sequentially the hotel rooms BS which is equal to j m.

Let such paths remained U pieces. They form the set of all possible paths from BSmto jm. Let's number them 1 through U.

Let the obtained P the adjusted time difference of the signals BS. Let's number them 1 through R.

We introduce the concept vector of the adjusted temporal errors and vector accuracy of the adjusted temporal errors.

Under the vector of the adjusted temporal errorslength equal to the R - number of received revised temporary mismatches will understand vector

where the p-th element Δtpvectorwhere R takes values from 1 to P, is equal to p-th adjusted time offset signals BS.

Under the vector accuracy of the adjusted temporal errorslength equal to the R - number of received revised temporary mismatches will understand vector

where the p-th element σpvectorwhere R takes values from 1 to P, is equal to the accuracy of the p-th adjusted temporary error signals BS.

Form for each path of each generated set of all possible paths vector path that lists specified in the temporal mismatch signals BS, included in the given path.

Consider this, for example, for the set of all possible paths from BSmto jm.

Specify the length of each vector of the path equal to the R - number of sophisticated temporal errors.

Define the R-th element and on vector paths, where p takes values from 1 to R and takes values from 1 to U, is equal to 1 if the given path has an edge corresponding to the p-th adjusted time offset, and the direction of passage of this edge in the path coincides with the direction of the p-th adjusted temporary error, -1 if the given path is an edge corresponding to the p-th adjusted time offset, and the direction of the passage of this edge in a path opposite to the direction of the p-th adjusted temporary mismatch in the opposite if set to 0.

Get U vectors waysfrom BCmto jm.

The generated set of vectors of all possible paths from BSmto jmin the General case, excessively.

Determine a metric for each of the generated vectors ways. For example, the metric and th vectormany vectors of all possible paths from BSmto jmdefined as

,

where - R-th element and th vectorfrom BCmto jm,

σp- R-th element of the vector of accuracies specified temporal errors.

From the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways.

Consider this example of group selection vectors of the paths from the set of all possible vectors of paths from BSmto jm.

Sort the set of all possible vectors of paths from BSmto jmin ascending order metrics vectors ways. Let the sorting could U vectors wayswhere the vector pathhas the lowest metric, and the vector path - the largest metric.

Let us define the vector of the adjusted temporal errorsvector. The length of the vectorequal to P, and the p-th element of the vectorequali.e. equal to the p-th element of the vector path.

Let us define the vector of the adjusted temporal errorsvectors waysThe length of the vectorequal to P, and the p-th element of the vectordetermined as follows:

cp=0, if b

1
p
=0, b
S2
p
=0,...,

otherwise, cp=1.

For group selection vectors of the paths from the set of all possible vectors of paths from BSmto jmconsistently in the U-1 steps trying to delete from a variety of vector pathswhile on the I-th step, where takes values from 2 to U, try to delete the vector pathas follows:

form vector as the vector of the adjusted time difference vectors ways,

if for all p, where p takes values from 1 to P, for which cp=0, the conditionthe vector pathyou can delete, otherwisecannot be removed.

Let left R vectors ways from BCmto jm. They form a selected group of vectors waysfrom BS imto BS jmused in the future.

Form for each pair of BS weight of the adjusted time difference of signals of the base stations using the selected group of vectors ways and the resulting accuracy of the adjusted time difference of the signals BS.

Explain this on the example of the formation of the weights of the adjusted time difference of the signals BS for BSmand jm.

Using vector accuracy of the adjusted time difference of the signals BSand the selected group of vectors waysform the matrix of correlations between the errors of the estimates of the mutual temporal mismatch signal BSmthe relative signal jmreceived on separate vectors ways.

The size of the matrix of correlations equal to [R×R]. Ele is UNT matrix of correlations with indices r 1and r2where r1and r2take values from 1 to R, is equal to

wherethe correlation coefficient between r1-Oh and r2second error estimate of the reciprocal of the temporary mismatch signal BS imrelative signal BS jm,

- R-th element of r1on vector paths,

- R-th element of r2on vector paths.

Form the matrixthat is the opposite of the formed correlation matrix.

Using the selected group of vectors of paths consisting of vectors waysand formed the matrixthat is the opposite of the formed correlation matrixform R weights of the adjusted temporal errors so that the weight of the p-th adjusted temporary error andpwhere R takes values from 1 to P, is equal to:

whereelement formed matrixindex r1and r2,

where r1and r2take values from 1 to R,

- R-th element of r1on vector paths,

- R-th element of r2on vector paths.

Define mutual temporary misalignment of the signals of each pair of BS as a weighted sum of all the adjusted time difference of the signals BS with weights adjusted time difference of the signals BS generated for a given BS.

So, for example, determine the bilateral temporal mismatchsignal BSmthe relative signal jmas

i.e. as a weighted sum of all the adjusted temporal errors Δtpsignals BS with weights apthe adjusted time difference of the signals BS, formed for BSmand jmwhere R takes values from 1 to R.

Explain joint work elements of a cellular network when implementing the proposed method (see Fig.7).

7 shows the measuring device 30, BS 31, the controller 32 BS and the center 33 of the positioning MP.

To implement the proposed method on the measuring device 30:

on the step And perform consecutive measurements temporary error signals of at least two base stations, the signals of which are on this measurement the devices,

to step Into the average measurement data temporary error, receiving average measured temporal misalignment of these signals BS

at step determine its accuracy.

Passed with a measuring device 30 for BS 31 the first signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy.

Transmit to the base station 31 to the controller 32 BS second signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy.

To implement the proposed method on the controller 32 BS in step D is subtracted from the averaged measured temporal misalignment of each pair of BS-known difference between the delays of the direct propagation of signals from the first BS and the second BS of this pair to the measuring device, which was obtained this average measured temporal misalignment, receiving updated temporary misalignment of the signals of the pair of BS.

Passed from the controller 32 BS on the center 33 of the positioning MP third signal containing the specified temporary misalignment of each pair of BS and its accuracy.

To implement the proposed method on the center 33 of the positioning MP:

the form for each pair of BS the set of all possible paths from the first BS to the second BS pairs

in step F forms the shape for each path, each formed of multiple vector path, listing updated time of the error signals of the base stations involved in this path, and determine its metric

in step G for each pair of BS from the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways,

in step H is formed for each pair of BS weight of the adjusted time difference of signals of the base stations using the selected group of vectors ways and the resulting accuracy of the adjusted time difference of the signals BS

in step I define mutual temporary misalignment of the signals of each pair of BS as a weighted sum of all the adjusted time difference of the signals BS with weights adjusted time difference of the signals BS generated for a given BS.

BS, BS controllers and center op is adelene location MP can be performed for example, in the method according to the patent WO99/57826: Method Of Synchronization Of A Base Station Network, 4 May 1998, [8].

Briefly describe blocks, which must contain the elements of cellular radio communications to implement the method of determining the relative temporal error signals of the base stations in the cellular communication system.

To perform the claimed method BS 31 (see Fig) must contain, as a minimum, the receiver 34 of the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy, and the transmitter 35 of the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy.

By BS 31 (see Fig.9):

in step J using the receiver 34, the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy, which was transmitted from the measuring device 30,

on the step To transmit with a transmitter 35, the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy, the controller 32 BS.

For carrying out the inventive method, the controller 32 BS (see figure 10) must contain, as a minimum, the receiver 36 of the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy, computing device 37 and the transmitter 38 of the signal containing the specified time is passed the error signals of the pair of BS and its accuracy.

By controller 32 BS (see 11):

in step L is taken with the help of the receiver 36, the signal containing the averaged measured temporal mismatch of the signals of the pair of BS and its accuracy, which was transmitted from the BS 31,

in step D deducted in computing device 37 from the averaged measured temporal misalignment of each pair of BS-known difference between the delays of the direct propagation of signals from the first BS and the second BS of this pair to the measuring device, which was obtained this average measured temporal misalignment, receiving updated temporary misalignment of the signals of the pair of BS,

in step M transmit with a transmitter 38, the signal containing the specified temporary misalignment of the signals of the pair of BS and its accuracy on the center 33 of the positioning MP.

To perform the claimed method the center 33 of the positioning MP (see Fig) must contain at least the receiver 39 signal containing the specified temporary misalignment of the signals of the pair of BS and its accuracy, and computing device 40.

Through the center 33 of the positioning MP (see Fig):

at step N is taken with the help of receiver 39 signal containing the specified temporary misalignment of the signals of the pair of BS and its accuracy, which was transferred from the controller BC,

in step E by computing device 40 is formed for each pair of BS the set of all possible paths from the first BS to the second BS pairs

in step F form for each path, each formed of multiple vector path listing updated time of the error signals of the base stations involved in this path, and determine its metric

in step G for each pair of BS from the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the values of the metrics vector paths in any other group of vectors of paths derived from the set of all possible vectors of ways,

in step H is formed for each pair of BS weight of the adjusted time difference of signals of the base stations using the selected group of vectors ways and the resulting accuracy of the adjusted time difference of the signals BS

in step I define mutual temporarily resovles is of the signals of each pair of BS as a weighted sum of all the adjusted time difference of the signals BS with weights adjusted time difference of the signals BS, formed for a given BS.

The inventive method of determining the relative temporal error signal BS has the following significant advantages over known in the art, inventions.

First, the inventive method allows to determine the mutual temporal mismatch of signals of any pair of BS, regardless of whether the adjusted temporary mismatch of their signals.

Secondly, the inventive method improves the accuracy of determining the relative time difference of the signals BS.

These advantages are achieved through the joint statistical processing of all of the adjusted time difference of the signals BS.

1. The method of determining the relative temporal error signals of the base stations in the cellular communication system, in which use of the base station controllers, base stations, measuring device and the Central location of the mobile user, and each base station is under the control of a controller of the base station, and each measuring device receive signals from at least two base stations and the signal from each base station to receive at least one measuring device, which consists in the fact that you are doing at each measurement condition is the device serial measurements temporary error signals of at least two base stations, signals which are in this measuring device, and the average measurement data temporary error, receiving average measured temporal mismatch of the signals from these base stations, and determine its accuracy, transmit the averaged measured time error and accuracy with each measuring device to one of the base stations, the signals of which are on this measuring device, and from it - to the controller of the base station that it is characterized by the fact that deducted on each controller of the base station from the averaged measured temporal mismatch of each pair of base stations known the difference between the delays of the direct propagation of signals from the first base station and the second base station of the pair to the measuring device, which was obtained this average measured temporal misalignment, receiving updated temporary misalignment of the signals of the pair of base stations, transmit all of the adjusted time of the error signals of base stations and their accuracy with each controller of a base station in a Central location of the mobile user form for each pair of base stations of the set of all possible paths from the first base station to the second basic is th station of the pair, form for each path, each formed of multiple vector path listing updated time of the error signals of base stations that are included in this path, and determine a metric for each pair of base stations from the set of all possible vectors of ways to choose a group of vectors of paths that contain each of the received specified temporal errors, and the number of uses of each of the obtained adjusted time difference of a selected group of vectors ways should not exceed the number of usages of this revised temporary mismatch in any other group of vectors of paths derived from the set of all possible vectors of ways, and metric values of the vectors of the paths in the selected group must not exceed the value of the metric vector paths in any other group of vectors of paths derived from the set of all possible vectors of paths are formed for each pair of base stations weight of the adjusted time difference of the base station signal using the selected group of vectors ways and the resulting accuracy of the adjusted time difference of signals of base stations, determine mutual temporary misalignment of the signals of each pair of base stations as a weighted sum of all the adjusted time difference of the signals hundred base the Nations with weights adjusted time difference of signals of base stations, formed for a given pair of base stations.

2. The method according to claim 1, characterized in that when forming, for each pair of base stations of the set of all possible ways to form each path of the set, identifying the vertices of this path of the base station, the first top - the beginning of this journey - the first base station, the second vertex of this path is one of the base stations adjacent to the base station, which is the first vertex of this path, while the neighboring base stations consider these two base stations, for which you received the updated temporary misalignment of their signals, the n-th vertex of this path is one of the base stations adjacent to the base station, which is the (n-1)-th vertex of the path, where n takes values from 2 to N-1, and N is the number of vertices in this path, the latest top - end of this road is the second base station, the edges of this path - specified temporal mismatch between the signals of two base stations that are adjacent vertices of this path, the direction of the passage of this path from the first base station to the second base station, each base station may be a vertex of this path no more than once.

3. The method according to claim 1, characterized in that when forming the vector path for each path, each formed of multiple numbers, all of the adjusted time is i.i.d. mismatch base station signal numbers from 1 to P, where P is the number of the obtained adjusted time difference of signals of base stations, specify the length of each vector paths equal to the number specified temporal errors R, define the R-th element of each vector path, where p takes values from 1 to P, is equal to 1 if the given path has an edge corresponding to the p-th adjusted time offset, and the direction of passage of this edge in the path coincides with the direction of the p-th adjusted temporary mismatch, where the direction of the p-th adjusted temporary misalignment of ipth base station relative to the jpth base station determines from the ip-th base station to the jp-th base station, -1 if the given path has an edge corresponding to the p-th adjusted time offset, and the direction of the passage of this edge in a path opposite to the direction of the p-th adjusted temporary error, otherwise 0.

4. The method according to claim 1, characterized in that the metric vector path is defined as the sum of the products of modules of the elements of this vector paths on the square of the accuracy of the adjusted temporal mismatch, corresponding to the given element.

5. The method according to claim 1, characterized in that when forming, for each pair of base stations of the weights of the adjusted temporal errors form the matrix corre is Azi between errors of the estimates of the mutual temporal mismatch between a given pair of base stations, received on separate vectors ways, using the selected pair of base stations of a group of vectors ways and accuracy of the adjusted temporal errors, and the size of the matrix of correlations equal to [R×R], where R is the number of vectors of the paths in the selected group, the element of the matrix of correlations with indices r1and r2where r1and r2take values from 1 to R, is equal to the sum of products of elements of r1-th vector of path elements r2-th vector of the path and on the square of the accuracy of the adjusted temporal mismatch corresponding to these elements form a matrix, inverse of the formed matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of base stations using generated for the pair of base stations of a group of vectors ways and the matrix inverse to formed the matrix of correlations between the errors of the estimates of the mutual temporal mismatch between a given pair of base stations to form the P scales the adjusted time difference of the pair of base stations in such a way that the weight of the p-th adjusted temporary misalignment apequal to

where- the element of the matrix inverse to the matrix formed correlations between error and estimates the reciprocal of the temporary mismatch between a given pair of base stations, index r1and r2;

- R-th element of r1-th vector of the path of the selected group;

- R-th element of r2-th vector of the path of the selected group.



 

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2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

1 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 6 dwg

FIELD: radio communications.

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

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

2 cl, 6 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

FIELD: radio communications.

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

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

2 cl, 7 dwg, 1 tbl

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

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

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

1 cl, 2 dwg

FIELD: radiophone groups servicing distant subscribers.

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

EFFECT: enhanced quality of voice information.

12 cl, 11 dwg

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