Transmission of sounding reference signals in tdd communication systems. RU patent 2521093.

FIELD: radio engineering, communication.

SUBSTANCE: invention relates to a single-carrier frequency division multiple access communication system using time division duplexing (TDD). A sounding reference signal (SRS) bandwidth configuration is changed by setting a maximum bandwidth value of the SRS bandwidth configuration to a value that avoids overlapping the bandwidth allocated for transmission of one or more random access channels. The SRS is transmitted in accordance with bandwidth from the changed SRS bandwidth configuration. Information regarding the SRS bandwidth configuration is provided to user equipment (UE) by the network.

EFFECT: invention discloses a method and apparatus for transmitting and receiving a sounding reference signal (SRS) in a network in a communication system; bandwidth allocated by the network for transmission of one or more random access channels is determined.

31 cl, 15 dwg, 1 tbl

THE TECHNICAL FIELD

The present invention as a whole belongs to the partnership project of the third generation (3GPP) evolved universal terrestrial radio access (E-UTRA) long term evolution (LTE) and, in particular, to the transfer of probing reference signals in communication systems multiple access with crossover frequency with single-carrier (SC-FDMA) with using two-way communication with time division (TDD).

THE LEVEL OF TECHNOLOGY

In order communication system functioned correctly, the system supports several types of signals. In addition to the data signals that transmit information content, to ensure proper send and receive data signals you must also pass the control signal and the reference signal (RS). Such signals are transmitted from the user equipment (UE) for their servicing base stations (BS or Node) from bottom-up communication lines (UL) communication system and from a service Node In to UE for downstream communication lines (DL) communication systems. Examples of control signals include the signals of positive or negative acknowledgment (ACK or NAK, respectively), passed UE in response to a right or wrong reception of the data packet. Control signals also include the signal quality display channel (CQI), which provide information about the conditions of the channel DL, which is experiencing UE. RS typically transmitted every UE to either provide a coherent demodulation for data signals or signals of management on Node B, or Node to be used In measuring conditions channel UL feels UE. RS, which is used to demodulate the data or control signals is specified as demodulation (DM) RS, while the RS, which is used for sensing of the environment channel UL, which is typical broadband by nature, is specified as a sounding RS or SRS.

UE, also usually specified as a terminal or a mobile station may be stationary or mobile, and can be a wireless device, cell phone, personal computer, etc. Node In (or BS) as a rule is the stationary station can be specified as base transceiver station (BPS, BTS), access point, or some other terminology.

UE presumably transmit the data on physical rising to the joint canal (PUSCH), while in the absence of PUSCH transfer UE transmit signals of management on physical rising control channel (PUCCH). Signal transmission of data or control signal occurs at the time of transfer (TTI), which corresponds to Subhadra with a duration of 1 millisecond (MS), for example.

Figure 1 illustrates the structural scheme of the structure is 110 Subhadra for PUSCH transmission. Subcat includes two segments. Each segment 120 includes seven characters used for transmission of data signals, RS and possibly control signals. Each character 130 additionally includes a cyclic prefix (CF) in order to suppress interference due to propagation effects on the channel. Signal transmission in different segments can be the same or different parts of the working bandwidth. Some characters in each segment can be used to send 140 RS to provide an assessment of the channel and make possible a coherent demodulation of the received signal. For TTI is also possible to have only one segment or to have more than one Subcat. Bandwidth (BW) transfer allegedly includes frequency resource modules, which are specified in the materials of this application as a resource blocks (RB). For example, each of the resource block may include

subcarriers. UE allocate one or more consecutive RB 150 for PUSCH transmit and one for RB PUCCH transmission. The mentioned values are given for illustrative purposes only.

To Node defined In RB in which it is necessary to distribute PUSCH transmission from UE and related modulation scheme and coding (MCS), required CQI assessment of the environment channel UL at BW PUSCH transmission, which is less than or equal to the working BW. Typically, this CQI assessment UL obtained through separate transmission SRS on distributing BW UE. This SRS is passed symbol of Subhadra UL, replacing the transmission of data or information management. It is used to provide an estimate of the signal-to-noise (SINR) at its BW transmission. It can also be used for power regulation of transmission (TRS) UL and synchronization UL.

Figure 2 shows the transfer SRS. Transfer SRS happens in the last symbol of Subhadra each other Subhadra 260, 265, respectively to 4.3% loss SRS. UE1 210 and UE2 220 multiplexer their PUSCH transmission in different parts of the working BW during the first subcode 201, while UE2 220 and UE3 230 do it during the second Subhadra 202, a UE4 240 and UE5 250 doing it for the third Subhadra 203. Some characters Subhadra UE passed DM RS to allow the receiver Node To implement coherent demodulation of the signal data and control signals transmitted in the remaining characters subtitrov. For example, UE1, UE2, UE3, UE4 and UE5 passed DM RS 215, 225, 235, 245, 255, respectively. UE with the transfer of SRS can have or not have PUSCH transfer in the same Subhadra, and if they coexist in the same subcate, SRS and PUSCH transmission can be located in different parts of the working BW.

Figure 3 shows the structure of the transmitter for DM RS on the basis of the transfer in the time domain sequences constant amplitude zero autocorrelation (CAZAC). The sequence CAZAC 310 rotated in 320. Discrete Fourier transform (DFT, DFT) of the resulting sequence is applied in the unit 330. Subcarriers are displayed in the block 340 in accordance with the selected BW transmission unit 350. Inverse fast Fourier transform (IFFT) is carried out in box 360. Enter CF performed in block 370, and filtering is performed in block 380 temporary crop, to apply to the transmitted signal 390. It is assumed that the population is entered reference UE in carriers that can be used for signal transmission from other UE and immune supporting (not shown). The structure of the transmitter figure 3 can also be used, perhaps with minor changes (such as repetition in time sequence CAZAC for production comb spectrum), for transmission to the SRS. Moreover, for the sake of brevity, additional parts of the circuit of the transmitter, such as digital to analogue Converter, analog filters, amplifiers and antenna of the transmitter, known in the art, not illustrated.

An alternative way of formation of a sequence CAZAC, serving as DM RS or as SRS, is provided in the frequency domain, as illustrated in figure 4. In relation to the formation method in the time domain figure 3, it is possible that sub-SRS is not consistent (SRS has comb spectrum), which is useful for orthogonal multiplexing (by separating frequencies) overlapping transmission SRS with unequal BW. These SRS are formed sequences CAZAC different lengths that cannot be separated using a variety of cyclic shifts (CS), as discussed below. The formation of the frequency of the transmitted sequence CAZAC follows the same steps as the formation in the time domain, with two exceptions. Version of the frequency domain sequence CAZAC is used in the block 410. More precisely, DFT sequence CAZAC is calculated in advance and is not included in the chain of transmission. Additionally, the unit is 450 CS is used after the block 440 IFFT. Block 420 bandwidth management transfer, block 430 display subcarriers block 460 input CF and block 470 temporary crop to be applied to the transmitted signal 480, as well as other traditional functionality (not shown), the same as in figure 3.

On the receiver are the opposite (or complementary) transmitter function. This is illustrated in figure 5 and 6, which are used operations, back to the transactions in figure 3 and figure 4, respectively.

Figure 5 antenna receives radio frequency (RF) analog signal and after passing through further processing units (such as filters, amplifiers, converters with decreasing frequency and analog-to-digital converters) digital signal 510 passes through the block 520 temporary crop, and CF is removed in block 530. Then the receiver uses the fast Fourier transform (FFT) in block 540, selects sub-carriers used by the transmitter, in box 555 through bandwidth management 550 receive, applying the inverse DFT (IDFT) in block 560, restores CS applied to the transmitted sequence CAZAC in box 570, and using a copy of the sequence 580 CAZAC, multiplies (maps) resulting signal, the multiplier 590 to produce output 595 that can be used to assess the channel or CQI.

Similarly 6 digital signal 610 passes through the power 620 temporary crop, and CF is removed in block 630. Then CS passed sequence CAZAC restored in box 640, FFT is used in the block 650, the choice transmitted subcarriers are performed in block 665 through bandwidth management 660 reception, and then match with a copy 680 sequence CAZAC apply the multiplier 670. Finally obtained the output 690 and then it can be transmitted to the evaluation unit of the channel, such as frequency-time interpolator, or the evaluation unit UL CQI.

As described above, RS (DM RS or SRS) presumably formed from sequences CAZAC. An example of such sequences is given by the following equation

where L is the length of the sequence CAZAC, n is the index of the element in the sequence n={0, 1, 2,..., L-1}, a k - index of the sequence itself. For sequences CAZAC original length L, the number of sequences is L-1. Therefore, the whole family of sequences is determined as k series in {1, 2, L-1}. However sequence CAZAC to send RS does not have to be formed by strict application of the above expression. As RB presumably include an even number of subcarriers, where 1 RB includes

subcarriers sequence used to transmit RS, can be formed in the frequency or time domain or by truncating sequence CAZAC longer original length (such as length 13), either by expanding sequence CAZAC shorter original length (such as length 11) by repeating its first item(s) in the end (cyclic extension). Alternatively, the sequence CAZAC can be formed with the help of the automated search of sequences satisfying the properties CAZAC.

Various CS sequence CAZAC provide orthogonal sequence CAZAC. Thus, various CS sequence CAZAC can be allocated to different UE to achieve orthogonal multiplexing RS in the same RB. This principle is illustrated in figure 7. For multiple sequence 710, 730, 750 and 770 CAZAC, formed from multiple CS 720, 740, 780 760 and sequence CAZAC the same root, were orthogonal, is Δ 790 CS exceed the extension D propagation delay of the channel (including the uncertainty of the time uncertainty and side effects of the filter). If TS is the duration of one symbol, the number of CS is a part of the relations TS/D. For 12 cycle shifts and for the duration of the character approximately 66 microseconds (14 characters in subcate in 1 millisecond) separation in time CS serial is about 5.5 microseconds. The alternative, to ensure better protection from multipath can only 6 CS, providing separation in time about 11 microseconds.

BW transfer SRS may depend on SINR that UE experiences on UL. For UE low SINR UL serving Node In may allocate a small BW transfer SRS to ensure a comparatively large ratio of the power transferred to SRS per unit of BW, thus improving the quality assessment CQI UL received from the SRS. On the contrary, for UE high SINR UL serving Node In may allocate a greater BW transfer SRS as accurate estimate of the CQI UL can be reached from the SRS, getting this assessment on the big BW.

Several combinations BW transfer SRS can be maintained as shown in Table 1, which corresponds to the configurations adapted to 3GPP E-UTRA Release 8. Serving Node In may signal configuration through broadcast channel. For example, 3 bits can indicate one of eight configurations. Serving Node In may then individually assign each UE, for example, using the alarm level 2 bits, one of the possible BW transfer SRS

(in RB) by specifying the value of b for configuration S. Consequently, Node In appoints BW transfer SRS

(b=0, b=1, b=2 and b=3, respectively, Table 1) UE, with a gradually decreasing SINR UL.

values for RB BW UL of

Configuration BW SRS

He is applicable

The change in the maximum BW SRS is mainly intended for adaptation to the changing size PUCCH. PUCCH allegedly passed on the two borders of the working BW and not overlap (interferes with the SRS. Therefore, the larger the size PUCCH (RB), the less the maximum BW transfer SRS.

Fig additionally illustrates the principle of multiple BW transfer SRS for configuration=3 from Table 1. Transfer PUCCH is located on the two borders, 802 and 804, working BW, a UE configured on BW transfer SRS or

RB 812, or

RB 814, or

RB 816, or

RB 818. Several RB, 806 and 808, may not be probed, but it usually does not affect the ability of the Node At distribute PUSCH transmission in these RB, as appropriate SINR UL can be interpolated from nearby RB with the transfer of the SRS. For BW SRS other than the maximum serving Node In conceivably also appoints UE initial position of the transmission frequency SRS.

In communication schemes using two-way communication with time division (TDD), DL and UL transmissions occur in different Subhadra. For example, in the frame with 10 subtitrov, some subsidry can be used to DL transmission, and some can be used for UL transmission.

If we assume that the random access channel consists of Q RB, then working for BW UL of

RB and RA N channels random access, maximum BW transfer SRS is

RB. For the purposes of the implementation and verification of beneficial that the SRS and DM RS use the same sequence CAZAC. Also, since it is useful to avoid large initial lengths DFT, BW PUSCH transmission and consequently the length of the sequence DM RS may be limited to be a multiple of small, simple multipliers, such as, for example,

RB, & alpha 2, α 3 and II 5 are non-negative integers. Moreover, if BW transfer SRS configured to be a multiple of 4 RB, as in Table 1, BW transfer SRS is

As in characters UpPTS not expected PUCCH transfer, the traditional approach is that the maximum BW transfer SRS

RB. This implies that N RA channels random access, each of which contains Q RB placed on the two borders of the working BW, for example, by the way, is similar to the method for PUCCH on Fig. For BW transfer SRS less than the maximum, it can support the same value regardless of whether the character is transmitted symbol transfer UpPTS.

DISCLOSURE

TECHNICAL PROBLEM

However, the above approach may introduce additional BW SRS in characters UpPTS addition to those supported in characters other than UpPTS. For example, for

and RA N =2 maximum BW transfer SRS in characters UpPTS becomes equal to 88 RB, which is not supported by any configuration in Table 1. Consequently, the number of options for a maximum BW transfer SRS increases and requires additional checks.

In addition, the approach described above is not intended for situations in which the maximum BW SRS symbol are UpPTS less than the maximum BW SRS in characters other than UpPTS.

In addition, the approach described above assumes that described channels random access placed either in one or in both borders of the working BW predefined way. However, from the perspective of the functioning of the whole system may be preferable to Node configured In a position BW channels random access (for example, via a broadcast signal). In such cases, the purpose of the SRS and behavior UE regarding the transfer of SRS should be such that the transmission of signals random access did not cause interference.

TECHNICAL SOLUTION

The present invention has been done to address at least the above problems and/or deficiencies, and provide at least of the advantages described below. Accordingly, the aspect of the present invention provides methods and devices for setting bandwidth transmission probing reference signals (SRS) in a single set of predefined bandwidth transmission SRS to provide the means to expand the accessibility of the quality of the channel at the operating bandwidth, at the same time ensuring the proper functioning of the transmission SRS and signals random access.

According to the aspect of the present invention provides a method for transmitting equipment user probing reference signal (SRS) in a network communications system. Determines the bandwidth allocated by the network for transmission of one or more channels random access. Configuration bandwidth SRS changed by setting the maximum bandwidth configuration bandwidth SRS to a value that prevents overlapping of the bandwidth allocated to transmit one or more channels random access. SRS is passed in accordance with bandwidth from the modified configuration bandwidth SRS. Information about the configuration of bandwidth SRS is granted to the user equipment (UE) network.

According to another aspect of the present invention user equipment (UE) provides the means for the transfer of probing reference signal (SRS) in a network communications system. UE includes a display device subcarriers to determine the bandwidth allocated by the network for transmission of one or more channels random access, configuration changes bandwidth SRS by setting the maximum bandwidth configuration bandwidth SRS to a value that prevents overlapping of the bandwidth allocated to the transmission of one or more channels random access, and transfer of SRS in accordance with the bandwidth of the modified configuration bandwidth SRS. Information about the configuration of bandwidth SRS is available UE network.

According to the additional aspect of the present invention provides a method for receiving network probing reference signal (SRS) from the user equipment (UE) in the communication system. Allocated bandwidth for transmission of one or more channels random access. Dedicated bandwidth and configuration bandwidth SRS are transferred to the UE. Transfer SRS shall be adopted in accordance with bandwidth from the modified configuration bandwidth SRS, which was changed UE by setting the maximum bandwidth configuration bandwidth SRS to a value that prevents overlapping of the bandwidth allocated to the transmission of one or more channels random access.

According to the additional aspect of the present invention network is provided means for the reception of probing reference signal (SRS) from the user equipment (UE) in the communication system. The network includes a display device carriers to allocate bandwidth for transmission of one or more channels random access. The network also includes a transmitter to send the selected bandwidth and configuration bandwidth SRS to UE. Network additionally includes a receiver for reception of transfer the SRS in accordance with the bandwidth of the modified configuration bandwidth SRS, which was changed UE by setting the maximum bandwidth configuration bandwidth SRS to a value that prevents overlapping of the bandwidth allocated to the transmission of one or more channels random access.

THE PREDOMINANT EFFECTS

The present invention provides methods and devices for setting bandwidth transmission probing reference signals (SRS) in a single set of predefined bandwidth transmission SRS to provide the means to expand the accessibility of the quality of the channel in the working bandwidth, at the same time ensuring the proper functioning of the transmission SRS and signals random access.

DESCRIPTION OF DRAWINGS

The above and other aspects, characteristics and advantages of the present invention will be more evident from the following detailed description in the consideration in connection with the accompanying drawings in which:

Figure 1 is a diagram that illustrates the structure of Subhadra UL for PUSCH transmission.

Figure 2 - diagram illustrating multiplexing transmission SRS from several UE.

Figure 3 - structural diagram illustrating the first SC-FDMA transmitter for sequences CAZAC.

Figure 4 is a block diagram, illustrating the second SC-FDMA transmitter for sequences CAZAC.

5 is a block diagram, illustrating the first SC-FDMA receiver for sequences CAZAC.

6 is a block diagram illustrating the second SC-FDMA receiver for sequences CAZAC.

7 the block diagram illustrating the application of cyclic shifts to sequences CAZAC.

Fig - chart illustrating BW transfer SRS in standard subcate.

Fig.9 - chart illustrating the structure of the special Subhadra.

Figure 10 - a chart illustrating the setting of the maximum bandwidth transmission SRS symbol are UpPTS for different bandwidths channels random access under variant of the implementation of the present invention.

11 - chart illustrating the first setting intermediate frequency bands transfer SRS, which adjoin or overlap with the bandwidth of the transmission channels of random access, which are located on the borders of the working bandwidth symbol UpPTS under variant of the implementation of the present invention.

Fig - chart illustrating the second setting intermediate frequency bands transfer SRS, which adjoin or overlap with the bandwidth of the transmission channels of random access, which are located on the borders of the working bandwidth symbol UpPTS under variant of the implementation of the present invention.

Fig - chart illustrating the third setting intermediate frequency bands transfer SRS, to avoid overlapping with bandwidth transmission channels random access, located on the borders of the working bandwidth symbol UpPTS under variant of the implementation of the present invention.

Fig - chart illustrating the first setting intermediate frequency bands transfer SRS, to avoid overlapping with bandwidth transmission channels random access, located in the inner part of the working bandwidth symbol UpPTS under variant of the implementation of the present invention.

Fig - chart illustrating the second setting intermediate frequency bands transfer SRS, to avoid overlapping with bandwidth transmission channels random access, located in the inner part of the working bandwidth symbol UpPTS under variant of the implementation of the present invention.

THE WAY FOR THE INVENTION

Additionally, although embodiments of the present invention is described in relation to communication system SC-PDMA, the present invention can also be applied to all systems multiplexing frequency division (FDM) in General and access to multiple orthogonal frequency division (OFDMA), multiplexing orthogonal frequency division (OFDM)and multiple access with frequency separation (FDMA), has been extended with the discrete Fourier transform (DFT, DFT) OFDM, extended with DFT OFDMA, OFDMA with single-carrier (SC-OFDMA) and OFDM with single-carrier (SC-OFDM), in particular.

Objects of embodiments of the present invention consider transfer SRS in the presence of channels random access symbol UpPTS TDD communication systems.

The first object is considering a way to determine the maximum BW transfer of SRS, at the same time avoiding the introduction of BW transfer SRS that are not supported in characters other than UpPTS, and avoiding overlap between the maximum BW transfer SRS and BW allocated channels for random access.

The second object is considering ways to configure BW transfer SRS, when otherwise they would at least partially perebralis with BW, dedicated channels for random access, and to prevent this kind of overlap.

The third object is considering ways to configure BW transfer SRS, when the location of frequency channels random access can be configured in the working BW, as defined serving Node Century

The total number of N RA channels random access, each of which has Q RB, it is assumed located on one or both borders of the working BW predefined way.

Moreover, configuration BW SRS for specified work from BW

RB assumed predefined, such as, for example, are given in Table 1.

To avoid the introduction of new BW transfer SRS in addition to predefined, with Table 1 as a reference for the view embodiments of the present invention assume that the maximum BW SRS in characters UpPTS is determined according to the following equation (2):

where the evaluation is made over all set configurations BW SRS (for example, eight configurations in Table 1). Therefore, maximum maximum BW transfer SRS for all supported configurations, which is less than or equal

is chosen as the maximum BW transfer SRS in characters UpPTS. The remaining BW transfer SRS other than the maximum, the same as in characters other than UpPTS.

To determine the maximum BW transfer SRS, as in equation (2), allows for its increase when BW channels random access symbol UpPTS less than BW PUCCH in standard Subhadra, thus allowing sounding more BW symbol UpPTS. To determine the maximum BW transfer SRS, as in equation (2), it also allows decrease when BW channels random access symbol UpPTS more than BW PUCCH in standard Subhadra. This setting takes into account the avoidance of overlap between the transmission of the SRS with the maximum BW and transmission channels random access symbol UpPTS.

The first RB for transmission SRS with maximum BW is determined according to the following equation (3):

where the operation is "a part" is the rounds a number down to the nearest whole number.

In units subcarriers this is equivalent to

as of 1 corresponds RB

subcarriers. Next, assuming comb spectrum for SRS with the total number of K 0 crests, the first sub maximum BW transfer SRS symbol are UpPTS can be defined as

specifies the crest and presumably assigned to UE serving Node In the transmission of signals at a higher level. It should be noted that although embodiments of the present invention are considering starting position for the initial RB (or sub-carrier) maximum BW transfer SRS, it is an independent aspect that is not directly linked with the other aspects of the present invention.

If we denote the configuration BW SRS transmitted serving Node (for example, via a broadcast channel), c's , and the configuration BW SRS, which selects the maximum BW transfer SRS in characters UpPTS, c U , then S Accepted U, or when

For example, referring to Table 1 and assuming Q=6,

and what configuration=3 transmitted serving Node B in characters other than UpPTS, then:

if N is RA =0 in the symbol UpPTS, maximum BW transfer SRS

96 RB (for C=0 or C=1) applies even though the maximum BW transfer SRS

in character other than UpPTS, is 72 RB, a

If N is RA =4 symbol UpPTS, the same maximum BW transfer SRS

of the 72 RB, as

in characters other than UpPTS applies even though

equals 76 RB.

If N is RA =6 symbol UpPTS, maximum BW transfer SRS

64 RB (with=4) applies even though the maximum BW transfer SRS

in character other than UpPTS, is 72 RB,

also is 64 RB.

Figure 10 advanced illustrates the example above under option of the implementation of the present invention, assuming that the configuration BW SRS=3 from Table 1 in characters other than UpPTS (the numbers correspond RB). If N is RA =0 in the symbol UpPTS, several RB at each boundary working BW, 1016 and 1018, remain not probed as to Fig, but the maximum BW transfer SRS

1022 becomes equal to 96 RB. The remaining BW transfer SRS,

RB 1024,

RB or 1026

RB 1028 remain the same as in characters other than UpPTS. If N is RA =4 symbol UpPTS, channels, random access, 1032 and 1034, presumably located (evenly divided when RA N is an even integer) at the border of the working BW. Several RB at each boundary working BW, 1036 and 1038, remain not probed, and the maximum BW transfer SRS

the same as

in characters other than UpPTS, and equals 72 RB. The remaining BW transfer SRS,

RB 1044,

RB or 1046

RB 1048 again remain the same as in characters other than UpPTS. Finally, if RA N =6 in the symbol UpPTS, channels, random access, 1052 and 1054, again presumably located at the border of the working BW. All RB, not allocated channels for random access, ponderous, and the maximum BW transfer SRS

1062 is 64 RB. The most noteworthy aspect of the RA N =6 is that the channels random access also take part BW, where SRS with BW, less than the maximum, passed in characters other than UpPTS. Variant of the implementation of the present invention is illustrated in figure 10, suggests that such transfer SRS 1065, 1067 and 1069 stop (stop), while the remaining transmission 1064, 1066, and 1068 committed in characters other than UpPTS. However, may apply alternative approaches that reduce or avoid terminated transmission SRS, as described below.

Embodiments of the present invention assume that intermediate BW SRS (other than the minimum or maximum) instead of stopping transmission SRS in BW, overlapping with BW, dedicated channels for random access, BW transfer these SRS reduced to the maximum BW, which is supported in characters other than UpPTS, and do not extend to BW, dedicated channels for random access. Using case RA N =6 in the previous example, 11 advanced illustrates the above principle under variant of the implementation of the present invention. Channels random access, 1102 and 1104, again, are located on two borders of the working BW. Maximum BW transfer SRS

1112 again equal 64. Transfer SRS with minimum BW, overlapping with BW, dedicated channels for random access 1117, stop. However, transmission SRS with intermediate BW, overlapping with BW, dedicated channels for random access, not cease, and instead of the decrease of BW from 24 to RB RB 20, 1113 and RB 12 to 8 RB, as RB 20 and 8 RB, respectively, are the maximum BW SRS supported in characters other than UpPTS (table 1)that are not overlap BW transfer SRS with BW, dedicated channels for random access. Other programs of SRS for intermediate BW, 1114, 1116 and 1118, with no exposure.

In General, in order to refer to the scenario in which

less than the minimum for maximum BW transfer SRS, which in the example of Table 1 is equal to 48 RB and obtained for=6 or=7, the operation of maximization in equation (2) can be extended to all BW transfer SRS for all configurations according to equation (4):

where the evaluation is the entire set In from BW transfer SRS for a given configuration BW SRS and across the set of configurations BW SRS.

For example, using the same parameter values, as

suggested above, if N is RA =9 symbol UpPTS,

, while none of the maximum BW transfer SRS in configurations Table 1 not less than 46. Then the maximum BW transfer SRS symbol are UpPTS is 40 RB, it turns out that for b=1, C=2. All UE, appointed BW transfer SRS, more than 40 RB in characters other than UpPTS, can return to the maximum supported BW, less than 40 RB in characters other than UpPTS, although this BW may not be the maximum in characters other than UpPTS. Fig additionally illustrates the previous principle under variant of the implementation of the present invention. Channels random access, 1202 and 1204, again, are located on two borders of the working BW. Maximum BW transfer SRS

1212 reduced to 40 RB and transfer SRS with minimum BW, overlapping with BW, dedicated channels for random access 1217, stop. As figure 11, transfer SRS with intermediate BW, overlapping with BW, dedicated channels for random access, not stop, but instead decrease in BW 1213A, A, or cease 1215 Century, Other transfer SRS for intermediate BW, 1214, 1216 and 1218, are not affected.

An alternative approach is illustrated Fig under variant of the implementation of the present invention. Apply the same arguments as for Fig, with the only difference that the reduction BW can apply to all of the provisions of the SRS intermediate BW SRS, except those located close to the canals of random access. This can be achieved by calculating the number of RB for transmitting SRS, as

and dividing it by the number of the provisions of the SRS, so get BW supported in characters other than UpPTS. For configuration BW SRS=3 and for the second largest BW SRS in characters other than UpPTS, there are 3 positions SRS (table 1). On Fig

RB can be divided among 3 of the provisions of the SRS, as 16 RB, 16 RB and 12 RB in 1313A, IN 1313 and S, respectively. Elements 1302, 1304, 1312, A, IN 1315, 1316, 1317 and 1318 Fig directly correspond to items 1202, 1204, 1212, A, IN 1215, 1216, 1217 1218 and Fig, respectively.

Unlike PUCCH when the channel frequencies random access is not always on the two borders of the working BW configuration to transfer the SRS symbol are UpPTS is different from settings in characters other than UpPTS. BW transfer SRS can always perekrytiya with BW allocated for transmission channels random access. In such cases will apply the principles are similar to the principles described using figure 10, using Fig.

The first approach is to stop (suspend) the transfer of SRS in BW, overlapping with BW, dedicated channels for random access. This is illustrated in Fig under variant of the implementation of the present invention. BW allocated channels for random access 1410, is located near the middle of the working BW, however, can be applied to any other location. The transfer of the SRS with the minimum BW 1420 stops as soon as it overlaps with BW, dedicated channels for random access. The same applies to the relevant transmission SRS with less BW in 1430, 1440 and 1450. On the contrary, the transfer of SRS in BW, not overlapping with BW, dedicated channels for random access, 1435, 1445 I remain unchanged.

The second approach is to configure BW transfer SRS in order to avoid any overlap with BW, dedicated channels for random access. This is illustrated in Fig under variant of the implementation of the present invention. BW allocated channels for random access 1510, is located near the middle of the working BW, however, can be applied to any other location. Transfer SRS with maximum BW 1520 shifts and reduced to the maximum BW supported in characters other than UpPTS, stops, which does not overlap with BW, dedicated channels for random access. Although in characters other than UpPTS, there is only one maximum BW SRS, the second 1525 can be used in the symbol UpPTS that can be allocated to the UE with the appropriate transmission SRS only during the symbol UpPTS. The same process applies for the remaining BW transmission SRS 1530, 1540 and 1550. In addition, as with maximum BW SRS, can be formed additional BW transfer SRS for other BW transfer SRS, as in 1535.

In the embodiment of the present invention, before changing the configuration BW SRS on UE, Node allocates BW for transmission channels random access through the device display carriers and passes dedicated bandwidth and configuration BW SRS on UE from a transmitter. After configuration changes BW SRS SRS can be transmitted to a Node In from UE. Node In the transfer takes SRS according to the bandwidth of the configuration changes bandwidth SRS, which prevents overlap with the bandwidth allocated to transmit one or more channels random access.

4. The method according to claim 1, wherein the maximum amount of bandwidth the SRS is the maximum of the values of bandwidth in the set of configurations bandwidth SRS, which prevents overlap with the bandwidth allocated for the transmission of one or more channels random access.

5. The method according to claim 4, which is the maximum amount of bandwidth SRS is indicated and is determined in units of resource units, as

- bandwidth upward communication in units of resource units, With a set of configurations SRS, with the configuration of the SRS in the set With the configuration SRS,

- maximum bandwidth configuration with SRS; RA N - number of channels random access, a Q - number of resource units for each channel random access.

6. The method according to claim 1, wherein as the transfer of the SRS and the transmission channel random access is made perfect in character parts of upward communication lines (UpPTS) special Subhadra.

7. The method according to claim 1, further suspension containing at least one transmission SRS when the bandwidth of at least one transmission SRS overlaps with a bandwidth allocated for the transfer of one or more channels random access.

8. The method according to claim 1, further comprising stages where: when bandwidth transmission SRS overlaps with the bandwidth allocated for transfer one or more channels random access, reduce bandwidth transmission SRS to the maximum bandwidth that does not overlap with a bandwidth allocated for the transfer of one or more channels random access; and when the bandwidth transmission SRS partially overlaps the bandwidth allocated to transmit one or more channels random access suspend the transfer of SRS.

9. The method according to claim 1, further comprising stages where: when bandwidth transmission SRS overlaps with the bandwidth, dedicated to send one or more channels random access, reduce bandwidth of all transfers SRS in the appropriate bandwidth to transfer SRS not overlap with bandwidth allocated to transmit one or more channels random access; and when the bandwidth transmission SRS partially overlaps the bandwidth allocated to transmit one or more channels random access suspend the transfer of SRS.

10. The method according to claim 1, wherein the one or more channels random access are located in the inner part of the working bandwidth.

11. The method according to claim 10, in which the transfer of the SRS with the maximum bandwidth and transfer SRS with no maximum bandwidth stop when they overlap with the bandwidth allocated for one or more channels random access.

12. The method of claim 10, wherein, when the transfer SRS with maximum bandwidth and transfer SRS with no maximum bandwidth overlaps with the bandwidth allocated to one or more channels random access, transfer SRS with maximum bandwidth and transfer SRS with no maximum bandwidth shifts into working bandwidth, which does not overlap with the bandwidth allocated for one or more channels random access.

13. The method indicated in paragraph 12, in which a further transfer of the SRS with the maximum bandwidth and additional transmission SRS with no maximum bandwidth can be formed in the working bandwidth.

14. The method according to claim 5, in which the value of Q is 6.

15. A way of reception network probing reference signal (SRS) from the user equipment (UE) in the communication system that contains the time that: allocate bandwidth for transmission of one or more channels random access; transmit dedicated bandwidth and configuration bandwidth SRS in UE; accept the transfer of SRS in according to the bandwidth of the modified configuration bandwidth SRS, which was changed UE by changing the maximum bandwidth configuration bandwidth SRS through a function of the number of channels random access and quantity of resource units for each channel random access based on the configuration set bandwidth SRS.

16. The method indicated in paragraph 15, the network informs about UE typical bandwidth transmission SRS.

17. The method indicated in paragraph 15, in which the maximum amount of bandwidth the SRS is the maximum of the values of bandwidth in the set of configurations bandwidth SRS, which prevents overlap with the bandwidth allocated for the transmission of one or more channels random access.

18. The method according to 17, in which the maximum amount of bandwidth SRS is indicated and is determined in units of resource units, as

- bandwidth upward communication in units of resource units, With a set of configurations SRS, with the configuration of the SRS in the set With the configuration SRS,

- maximum bandwidth configuration with SRS; RA N - number of channels random access, a Q - number of resource units for each channel random access.

19. The method indicated in paragraph 15, in which as the transfer of the SRS and the transmission channel random access is made perfect in character parts of upward communication lines (UpPTS) special Subhadra.

20. The method according to p in which the value of Q is 6.

21. The device to send the probe reference signal (SRS) in a network communications system that contains: the device display carriers to determine the bandwidth allocated by the network for transmission of one or more channels random access, change the maximum bandwidth configuration bandwidth SRS through a function of the number of channels random access and quantity of resource units for each channel random access based on the configuration set bandwidth SRS, and transfer SRS based on the bandwidth of the modified configuration bandwidth SRS, with information about configuration, bandwidth SRS is available UE network.

22. The device according to item 21, and the maximum amount of bandwidth the SRS is the maximum of the values of bandwidth in the set of configurations bandwidth SRS, which prevents overlap with the bandwidth allocated for the transmission of one or more channels random access.

23. The device according to item 21, in which the maximum amount of bandwidth SRS is indicated and is determined in units of resource units, as

- bandwidth upward communication in units of resource units, With a set of configurations SRS, with the configuration of the SRS in the set With the configuration SRS,

- maximum bandwidth configuration with SRS; RA N - number of channels random access, a Q - number of resource units for each channel random access.

24. The device according to item 21, in which as the transfer of the SRS and the transmission channel random access is made perfect in character parts of upward communication lines (UpPTS) special Subhadra.

25. The device according to item 23 in which the value of Q is 6.

26. The device for reception of probing reference signal (SRS) from the user equipment (UE) in the communication system, contains: the device display carriers to allocate bandwidth for transmission of one or more channels random access; the transmitter to send a dedicated bandwidth and configuration bandwidth SRS in UE; and the receiver to receive transfer SRS based on the bandwidth of the modified configuration bandwidth SRS, which was changed UE by changing the maximum bandwidth configuration bandwidth SRS through a function of the number of channels random access and quantity of resource units for each channel random access based on the configuration set bandwidth SRS.

27. The device p, the network informs about UE typical bandwidth transmission SRS.

28. The device b, in which the maximum amount of bandwidth the SRS is the maximum of the values of bandwidth in the set of configurations bandwidth SRS, which prevents overlap with the bandwidth allocated for the transmission of one or more channels random access.

29. The device b, in which the maximum amount of bandwidth SRS is indicated and is determined in units of resource units, as

- bandwidth upward communication in units of resource units, With a set of configurations SRS, with the configuration of the SRS in the set With the configuration SRS,

- maximum bandwidth configuration with SRS; RA N - number of channels random access, a Q - number of resource units for each channel random access.

30. The device p, where as the transfer of the SRS and the transmission channel random access is made perfect in character parts of upward communication lines (UpPTS) special Subhadra.

31. The device according to clause 29, in which Q value is 6.