CN105978608A

CN105978608A - SRS (Sounding Reference Signal) enhancement method and related equipment

Info

Publication number: CN105978608A
Application number: CN201610242424.8A
Authority: CN
Inventors: 王三新
Original assignee: Shenzhen Jinli Communication Equipment Co Ltd
Current assignee: Shenzhen Jinli Communication Equipment Co Ltd
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2016-09-28

Abstract

The embodiment of the invention provides an SRS (Sounding Reference Signal) enhancement method and related equipment which are applied to an FD-MIMO (Full Dimension Multi-Input Multi-Output) technology. The SRS enhancement method comprises the steps that a base station sends SRS configuration information, wherein the SRS configuration information is used for indicating that multiple pieces of user equipment (UE) accessed to the base station reports SRS signals to the base station in the same preset symbol of the same subframe in an MU-MIMO (Multi-user Multi-Input Multi-Output) mode, and the SRS configuration information comprises the SRS transmission mode of each of the multiple piece of UE and the SRS transmission location of each of the multiple piece of UE; the base station receives the SRS signals reported by the multiple pieces of UE according to the SRS configuration information; and the base station carries out channel estimation respectively in allusion to the SRS signals reported by each of the multiple pieces of UE. Implementation of the embodiment of the invention can increase the number of users sending the SRS signals simultaneously under the condition of not increasing the SRS pilot frequency resource overhead.

Description

The method of a kind of detection reference signal SRS enhancing and relevant device

Technical field

The present invention relates to communication technical field, particularly relate to a kind of detection reference signal SRS strengthen method and Relevant device.

Background technology

Along with popularization and application and the sustainable growth of mobile service of intelligent terminal, the demand of wireless transmission rate Being exponentially increased, two-forty, high-quality communication technology will become the goal in research of next generation communication system. And with multiple antennas skill that multiple-input and multiple-output (Multiple-Input Multiple-Output, MIMO) is representative Art is one of preferred plan realizing above-mentioned target.But, 3GPP (3rd Generation Partnership Project, third generation partner program) number of antennas and the transmission mode of regulation do not support multi-user in agreement Carry out spatial reuse, thus strongly limit the utilization rate of system spectral resources.In order to more effectively utilize frequency Spectrum resource, 3GPP introduces EBF (Elevation Beamforming, solid beam excipient)/FD-MIMO (Full Dimension Multi-Input Multi-Output, full dimension multiple-input and multiple-output) technology realizes Multiple users are serviced in same running time-frequency resource.

EBF/FD-MIMO is a kind of based on SRS (Sounding Reference Signal, detection reference signal) The transmission technology that feedback and DMRS (Demodulation Reference Signal, demodulated reference signal) demodulate, Its principle is that (Multi-User Multiple-Input Multiple-Output, multi-user is many by MU-MIMO Input multi output) and RS (Reference Signal, reference signal) strengthen promote the availability of frequency spectrum. Strengthening for SRS, current implementation method mainly has: one, increases the symbolic number sending SRS, i.e. increases Send the running time-frequency resource number of SRS；Two, frequency division or the code division number of SRS are increased.Method is subtracted for a moment Less for the number of resources of data transmission, reduce the availability of frequency spectrum；SRS channel can be caused to estimate for method two The deterioration of performance.Therefore, how in the case of not increasing resource overhead, to support more SRS channel, obtain The effectively compromise taking resource overhead and channel detection performance is the key issue that FD-MIMO technology needs to solve.

Summary of the invention

Embodiments provide method and relevant device that a kind of detection reference signal SRS strengthens, it is possible to The number of users simultaneously sending SRS signal is increased in the case of not increasing SRS pilot resources expense.

Embodiments provide a kind of method that detection reference signal SRS strengthens, be applied to full dimension many In input multi output FD-MIMO technology, described method includes:

Base station sends SRS configuration information, and described SRS configuration information accesses the multiple of described base station for indicating User terminal UE presets the same of same subframe in the way of multi-user multiple-input and multiple-output MU-MIMO Report in symbol SRS signal, described SRS configuration information to include in the plurality of UE each to described base station The SRS transmission position of each UE in the SRS transmission pattern of UE and the plurality of UE；

Described base station receives the SRS signal that the plurality of UE reports according to described SRS configuration information；

Described base station is respectively directed to the SRS signal that in the plurality of UE, each UE reports and carries out channel estimation.

Embodiment of the present invention second aspect provides a kind of method that detection reference signal SRS strengthens, and is applied to In full dimension multiple-input and multiple-output FD-MIMO technology, described method includes:

User terminal UE receives the SRS configuration information that base station sends, and described SRS configuration information is used for indicating Described UE reports SRS signal to described base station, and described SRS configuration information includes that the SRS of described UE passes The SRS transmission position of defeated pattern and described UE；

Described UE, with described SRS transmission pattern, reports SRS to described base station on described SRS transmission position Signal, so that the described SRS signal that described base station reports for described UE carries out channel estimation.

The embodiment of the present invention third aspect provides a kind of base station, including:

Transmitting element, is used for sending SRS configuration information, and described SRS configuration information is used for indicating access described Multiple user terminal UE of base station in the way of multi-user multiple-input and multiple-output MU-MIMO in same subframe Same predetermined symbol in report SRS signal to described base station, described SRS configuration information includes the plurality of The SRS transmission pattern of each UE and the SRS transmission position of each UE in the plurality of UE in UE；

Receive unit, for receiving the SRS signal that the plurality of UE reports according to described SRS configuration information；

Channel estimating unit, enters for being respectively directed to the SRS signal that in the plurality of UE, each UE reports Row channel is estimated.

Embodiment of the present invention fourth aspect provides a kind of user terminal UE, including:

Receiving unit, for receiving the SRS configuration information that base station sends, described SRS configuration information is used for referring to Show that described UE reports SRS signal, described SRS configuration information to include the SRS of described UE to described base station The SRS transmission position of transmission mode and described UE；

Transmitting element, for described SRS transmission pattern, to described base station on described SRS transmission position Report SRS signal, so that the described SRS signal that described base station reports for described UE carries out channel estimation.

In the embodiment of the present invention, in full dimension multiple-input and multiple-output FD-MIMO technology, base station broadcast is sent out After sending SRS configuration information, access multiple UE of this base station and can resolve this SRS configuration information, and according to This SRS configuration information in the way of MU-MIMO in the same predetermined symbol of same subframe on this base station Report respective SRS signal, after base station receives the SRS signal that multiple UE reports, can be respectively directed to connect Each SRS signal received carries out channel estimation.Visible, implement the embodiment of the present invention, it is possible to do not increasing Support that the SRS signal of more users transmits in the case of SRS pilot resources expense simultaneously, and then can promote The utilization rate of system spectral resources.

Accompanying drawing explanation

For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to required in embodiment The accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is some realities of the present invention Execute example, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to Other accompanying drawing is obtained according to these accompanying drawings.

Fig. 1 is the schematic flow sheet of the method that a kind of SRS that the embodiment of the present invention provides strengthens；

Fig. 2 is the schematic diagram that the SRS pilot frequency sequence of a kind of multi-user that the embodiment of the present invention provides carries out frequency division；

Fig. 3 is the schematic diagram that a kind of base station that the embodiment of the present invention provides communicates with multi-user；

Fig. 4 is the signal that the SRS pilot frequency sequence of another kind of multi-user that the embodiment of the present invention provides carries out frequency division Figure；

Fig. 5 is the schematic diagram that the another kind of base station that the embodiment of the present invention provides communicates with multi-user；

Fig. 6 is the schematic flow sheet of the method that the another kind of SRS that the embodiment of the present invention provides strengthens；

Fig. 7 is the structural representation of a kind of base station that the embodiment of the present invention provides；

Fig. 8 is the structural representation of the another kind of base station that the embodiment of the present invention provides；

Fig. 9 is the structural representation of a kind of UE that the embodiment of the present invention provides；

Figure 10 is the structural representation of the another kind of UE that the embodiment of the present invention provides.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearly Chu, it is fully described by, it is clear that described embodiment is a part of embodiment of the present invention rather than all Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative labor The every other embodiment obtained under dynamic premise, broadly falls into the scope of protection of the invention.

Embodiments provide method and relevant device that a kind of detection reference signal SRS strengthens, it is possible to In the case of not increasing SRS pilot resources expense, support that the SRS signal of more users transmits simultaneously, and then The utilization rate of system spectral resources can be promoted.It is described in detail individually below.

Refer to the flow process signal that Fig. 1, Fig. 1 are the methods that a kind of SRS that the embodiment of the present invention provides strengthens Figure.Wherein, the method that this SRS strengthens can apply to full dimension multiple-input and multiple-output FD-MIMO technology In, to realize frequency spectrum resource utilization rate.In FD-MIMO, introduce MU-MIMO technology and RS Increase technology, MU-MIMO technology allows multiple different users to be transmitted on identical running time-frequency resource, By beam shaping, spatially distinguish different user, reduce the interference between user, significantly to promote frequency Spectrum efficiency.RS increase technology by SRS channel estimate and TDD (Time Division Duplexing, time Point duplex) channel reciprocity, obtain descending channel information.The embodiment of the present invention proposes a kind of scheme, Can support that in the same symbol of same subframe multiple user carries out the transmission of SRS signal simultaneously, thus The number of users simultaneously sending SRS is increased, such that it is able to promote system in the case of not increasing running time-frequency resource expense System frequency spectrum resource utilization rate.Concrete, as it is shown in figure 1, the method that this SRS strengthens can include following step Rapid:

101, base station sends SRS configuration information, and this SRS configuration information is for indicating the multiple of access base station UE (User Equipment, user terminal) presets the same of same subframe in the way of MU-MIMO SRS signal is reported to base station in symbol.

In the embodiment of the present invention, base station can send SRS configuration information in a broadcast manner, accesses this base station UE can go to receive this SRS configuration information.This SRS configuration information is for indicating this base station of access many Individual UE reports SRS to believe to this base station in the way of MU-MIMO in the same predetermined symbol of same subframe Number.In LTE system, each subframe comprises two time slots, and each time slot comprises 7 symbols, Mei Geshang Last symbol (i.e. the 14th symbol) of row subframe may be used for the transmission of SRS signal, now, same One predetermined symbol may refer to last symbol of sub-frame of uplink, i.e. base station and indicates above-mentioned multiple UE a certain Transmit SRS signal on last symbol of sub-frame of uplink simultaneously.It should be noted that in special subframe and wrap Containing a uplink pilot time slot (Uplink Pilot Time Slot, UpPTS), this UpPTS comprises two Symbol, the two symbol is used equally to the transmission of SRS signal, and now, same predetermined symbol may refer to this Any one in two symbols, i.e. base station indicate above-mentioned multiple UE in the UpPTS of a certain special subframe A symbol on transmit SRS signal simultaneously.

In the embodiment of the present invention, UE can include cell phone, panel computer, palm PC, individual digital Assistant (Personal Digital Assistant, PDA), mobile internet device (Mobile Internet Device, MID), each Terminal Type such as Intelligent worn device (such as intelligent watch, Intelligent bracelet etc.), the embodiment of the present invention It is not construed as limiting.

In the embodiment of the present invention, this SRS configuration information can include but not limited in above-mentioned multiple UE each Each UE in the SRS transmission pattern of each UE and above-mentioned multiple UE in the mark of UE, above-mentioned multiple UE SRS transmission position.Wherein, SRS transmission pattern may refer to UE is with which kind of pattern to transmit to base station SRS signal, SRS transmission pattern can include frequency division transmission pattern, time-division transmission mode or code division transmission Pattern.Transmit in the UE different under frequency division transmission pattern different sub carrier in symbol, time-division transmission mode Lower different UE was transmitted in the different moment, under code division transmission mode different UE in symbol with different Orthogonal code is transmitted.The SRS transmission pattern of different UE can be identical, it is also possible to different.SRS transmission Position may refer to transmit SRS signal, no on the UE which position (or which subcarrier) in symbol SRS transmission position with UE is different, and in i.e. different UE different sub carrier in same symbol, transmission is each From SRS signal.

102, base station receives the SRS signal that above-mentioned multiple UE report according to this SRS configuration information.

In the embodiment of the present invention, after base station broadcast sends SRS configuration information, the UE accessing this base station can To receive this SRS configuration information and to resolve, joining of self correspondence can be judged whether by UE mark Confidence ceases, if parsing the UE mark that there is self in this SRS configuration information, then can join from this SRS Confidence breath obtains SRS transmission pattern and the SRS transmission position of self correspondence.UE can be right according to self The SRS transmission pattern answered reports SRS signal on the SRS transmission position of self correspondence, thus base station is permissible Receive above-mentioned multiple UE respectively with each self-corresponding SRS transmission pattern in each self-corresponding SRS transmission position On the SRS signal that reports.

103, the SRS signal that during base station is respectively directed to above-mentioned multiple UE, each UE reports carries out channel estimation.

In the embodiment of the present invention, concrete, that each UE of receiving for base station reports SRS signal, Can utilize preset algorithm that each SRS signal carries out channel estimation respectively, i.e. each UE be transmitted SRS The channel of signal carries out channel estimation respectively.Wherein, preset algorithm can be according to the transmission mode of SRS signal Difference and different, when SRS transmission pattern is frequency division transmission pattern, this preset algorithm can be compression sense Know algorithm；When SRS transmission pattern is code division transmission mode, this preset algorithm can be traditional code division letter Channel estimation algorithm, such as time-domain filtering etc..

As the optional embodiment of one, when in above-mentioned multiple UE, the SRS transmission pattern of each UE is equal During for frequency division transmission pattern, in above-mentioned multiple UE, the SRS pilot frequency sequence of each UE is according to transmission comb Comb Mode for N carries out frequency division, and now, in above-mentioned multiple UE, the SRS transmission position of each UE is above-mentioned Comb position corresponding to each UE in multiple UE.

In this embodiment, N can be more than or equal to the UE number of above-mentioned multiple UE, such that it is able to avoid Interference between above-mentioned multiple UE, it is preferred that N can be the UE number of above-mentioned multiple UE, thus can To avoid the waste of resource.In above-mentioned multiple UE, the SRS pilot frequency sequence of each UE can be identical, it is possible to With difference.

Correspondingly, step 102 base station receives the SRS that above-mentioned multiple UE report according to this SRS configuration information The detailed description of the invention of signal can be:

Base station receives each UE in above-mentioned multiple UE and carries out the transmission mode of frequency division with this Comb for N, The SRS information reported is carried out on corresponding Comb position.

Enter it addition, step 103 base station is respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports The detailed description of the invention that row channel is estimated can be:

Base station utilizes compressed sensing algorithm to be respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports Carry out channel estimation.

Wherein, compressed sensing is a kind of sparse signal processing method.By using compressed sensing, can be to dilute Dredge signal or compressible signal is compressed sampling, utilize less measured value to characterize the information of signal, thus Significantly reduce time and resource that data process.Additionally, big discharge observation tables of data is bright, actual channel was at many days In the case of line and broadband connections, the Amplitude Ratio in the most a small amount of footpath is relatively big, and the number of multipath is the least Number of samples in channel delay spread, i.e. wireless channel would generally be at time delay domain (frequency-selective channels) Show certain sparse characteristic.In such a case, it is possible to make full use of this sparse characteristic, use pressure Channel is estimated in contracting perception, to reach improve performance and reduce the purpose of complexity.The present invention is in current conclusion On the basis of, it is proposed that a kind of FD-MIMO SRS enhancement techniques scheme based on compressed sensing.It is main Thought is extension SRS channel number on the premise of not increasing community SRS pilot-frequency expense.Assume each SRS symbol has M pilot tone.In receiving terminal (base station), the channel frequency domain response at pilot frequency locations K Formula below is met with frequency domain response estimation:

\tilde{H} (k) = \frac{Y (k)}{X (k)} = H (k) + \frac{N (k)}{X (k)}

Wherein, Y (k) is the reception signal of this pilot frequency locations, and X (k) is corresponding frequency pilot sign, and N (k) is variance For σ²Additive white Gaussian noise.Owing to, in ofdm system, meeting between frequency domain response and time domain response: H=Fh, wherein, F is fast Fourier transform matrix, thus can channel estimation problems be expressed as:This is a typical compressed sensing problem, for sparse signal h, and can be at pilot tone vector Length much smaller than carrying out channel estimation under conditions of signal h length.This means that for each SRS end Mouthful, required pilot resources reduces, thus extends CSI-RS on the premise of can not increasing pilot-frequency expense The port number of (Channel State Information-Reference Signal, channel state information reference signals) Mesh.A new SRS port extending method can be set up for FD-MIMO by introducing compressed sensing technology, The SRS supporting more users on the premise of not increasing SRS pilot-frequency expense transmits simultaneously.

See also the SRS pilot tone sequence that Fig. 2 and Fig. 3, Fig. 2 are a kind of multi-users that the embodiment of the present invention provides Row carry out the schematic diagram of frequency division, and Fig. 3 is that a kind of base station that the embodiment of the present invention provides communicates with multi-user Schematic diagram.Shown in Fig. 2 is 4 users schematic diagrams of carrying out frequency division in same SRS symbol, these 4 use Family uses frequency division transmission pattern to report SRS signal at synchronization.Wherein, r_{U, v}N () is SRS pilot frequency sequence, 4 The SRS pilot frequency sequence of individual user is to carry out frequency division according to the mode of Comb=4, wherein, Comb0, Comb1 ... different subcarriers can be represented respectively.Assume that Comb0～Comb3 is respectively the biography of UE1～UE4 Defeated position.For UE1 the most respectively at Comb0, Comb4, Comb8 ... above transmission SRS pilot frequency sequence, right In UE2 the most respectively at Comb1, Comb5, Comb9 ... above transmission SRS pilot frequency sequence, UE3 is then divided Not at Comb2, Comb6, Comb10 ... above transmission SRS pilot frequency sequence, for UE4 the most respectively Comb3, Comb7, Comb11 ... above transmission SRS pilot frequency sequence.The SRS pilot frequency sequence of these 4 UE can be identical, Can also be different, the embodiment of the present invention be not construed as limiting.Shown in Fig. 3 is 4 UE and base station (eNB) Communication scheme, when each UE by the way of shown in Fig. 2 after base station reports SRS signal, base station dock The SRS signal received carries out channel estimation respectively, estimates to draw the descending weighter factor of each UE by channel, So that the signal to transmission is weighted when base station communicates with each UE, form the wave beam of correspondence respectively (Beam)。

As the optional embodiment of one, above-mentioned multiple UE include first object UE and the second target UE, When in first object UE, the SRS transmission pattern of each UE is code division transmission mode, in the second target UE each When the SRS transmission pattern of UE is frequency division transmission pattern, now, the SRS pilot tone of each UE in the second target UE Sequence can carry out frequency division, in above-mentioned multiple UE according to the mode that transmission comb Comb is M with first object UE The SRS transmission position of each UE includes in Comb position corresponding for first object UE and the second target UE each Comb position corresponding for UE.

In this embodiment, M can add 1 again more than or equal to the UE number of the second target UE, such that it is able to Avoid the interference between multiple UE, it is preferred that M can be that the UE number of the second target UE adds 1 again, thus The waste of resource can be avoided.In second target UE, the SRS pilot frequency sequence of each UE can be identical, it is also possible to Different.

In this embodiment, first object UE use orthogonal code make a distinction, to keep away between each UE Exempting from the signal disturbing between each UE in first object UE, the UE number of first object UE is less than presetting door Limit value.Wherein, predetermined threshold value can be 8, i.e. uses code division transmission mode to be once at best able to support 8 Code division user transmits SRS simultaneously.

Base station receive in first object UE each UE with each UE in code division transmission mode, the second target UE and Carry out the transmission mode of frequency division with this Comb for M between first object UE, enterprising in corresponding Comb position The SRS information that row reports.

It addition, step 103 base station is respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports carries out letter The detailed description of the invention that road is estimated can be:

Base station utilizes default code division channel estimation method to be respectively directed to what each UE in first object UE reported SRS signal carries out channel estimation, and utilizes compressed sensing algorithm to be respectively directed to each UE in the second target UE The SRS signal reported carries out channel estimation.

Wherein, preset code division channel estimation method and can use current existing algorithm for estimating, such as time-domain filtering Algorithm etc..Here, allow a part of user select traditional SRS transmission mode, allow another part user by frequency Divide transmission mode selection SRS transmission based on compressed sensing, it would be preferable to support more user transmits SRS simultaneously.

See also the SRS pilot tone that Fig. 4 and Fig. 5, Fig. 4 are the another kind of multi-users that the embodiment of the present invention provides Sequence carries out the schematic diagram of frequency division, and Fig. 5 is that the another kind of base station that the embodiment of the present invention provides leads to multi-user The schematic diagram of letter.Shown in Fig. 4 is the schematic diagrams that are transmitted in same SRS symbol of 8 users, with In one moment, these 8 users there are 5 users (i.e. user 1～user 5) use code division transmission mode to report SRS Signal, has 3 users (i.e. user 6～user 8) to use frequency division transmission pattern to report SRS signal, user 6～ The SRS pilot frequency sequence of user 8 carries out frequency division with user 1～user 5 according to the mode of Comb=4.Here, user 1～user 5 can regard first object UE, user 6～user 8 as and can regard the second target UE as.Wherein, user 1～user 5 can use different SRS code division sequences, user 6～user 8 can use identical SRS pilot tone sequence Row, it would however also be possible to employ different SRS pilot frequency sequences.Assume that Comb0 distributes to user 1～user 5 carries out SRS Transmission, Comb1～Comb3 is respectively allocated to user 6～user 8 carries out SRS transmission, the most respectively Comb0, Comb4, Comb8 ... above transmission user 1～the SRS of user 5, respectively at Comb1, Comb5, Comb9 ... The SRS pilot frequency sequence of upper transmission user 6, respectively at Comb2, Comb6, Comb10 ... above transmission user 7 SRS pilot frequency sequence, respectively at Comb3, Comb7, Comb11 ... above transmit user 8 SRS pilot tone sequence Row.Shown in Fig. 5 is the communication scheme of 8 UE and base station, when each UE is by the way of shown in Fig. 4 After base station reports SRS signal, the base station SRS signal to receiving carries out channel estimation respectively, passes through channel Estimate to draw the descending weighter factor of each UE, so that the signal to transmission enters when base station communicates with each UE Row weighting, forms the wave beam of correspondence respectively.

In the method described by Fig. 1, after base station broadcast sends SRS configuration information, access this base station many Individual UE can resolve this SRS configuration information, and according to this SRS configuration information in the way of MU-MIMO Reporting respective SRS signal to this base station in the same predetermined symbol of same subframe, base station receives multiple After the SRS signal that UE reports, it is possible to use previously described preset algorithm be respectively directed to receive each SRS signal carries out channel estimation.By implementing the method described by Fig. 1, it is possible to do not increasing SRS pilot tone The SRS signal supporting more users in the case of resource overhead transmits simultaneously, and then can promote system spectrum The utilization rate of resource.

Refer to the flow process that Fig. 6, Fig. 6 are the methods that the another kind of SRS that the embodiment of the present invention provides strengthens show It is intended to.Wherein, the method that this SRS strengthens can apply to full dimension multiple-input and multiple-output FD-MIMO skill In art, to realize frequency spectrum resource utilization rate.Concrete, as shown in Figure 6, the method that this SRS strengthens is permissible Comprise the following steps:

601, UE receives the SRS configuration information that base station sends, this SRS configuration information be used for indicating UE to Base station reports SRS signal, and this SRS configuration information includes that the SRS transmission pattern of UE and the SRS of UE pass Defeated position.

In the embodiment of the present invention, UE can include but not limited to cell phone, panel computer, palm PC, Each Terminal Types such as PDA, MID, Intelligent worn device (such as intelligent watch, Intelligent bracelet etc.).

In the embodiment of the present invention, after UE receives the SRS configuration information that base station sends, can be to this SRS Configuration information resolves, to judge whether to comprise in this SRS configuration information the configuration information of self, permissible It it is the configuration information that judges whether to include in this SRS configuration information self of the mark according to this UE.Should In configuration information in addition to the SRS transmission position of the SRS transmission pattern He this UE that include this UE, also The information such as transmission means MU-MIMO that can include the mark of this UE, this UE, the embodiment of the present invention It is not construed as limiting.This SRS configuration information may indicate that this UE reports SRS to base station in the way of MU-MIMO Signal.

602, UE is with this SRS transmission pattern, reports SRS signal to base station on this SRS transmission position, So that the SRS signal that base station reports for UE carries out channel estimation.

In the embodiment of the present invention, concrete, base station can utilize previously described preset algorithm to report UE SRS signal carries out channel estimation.

As the optional embodiment of one, when the SRS transmission pattern of this UE is frequency division transmission pattern, Now, the SRS pilot frequency sequence of this UE can carry out frequency division according to the mode that transmission comb Comb is N, should The SRS transmission position of UE is Comb position corresponding for this UE.

In this embodiment, N can be more than or equal to the UE number of first object UE, first object UE In the same predetermined symbol of same subframe, SRS is carried out with frequency division transmission pattern including this UE and with this UE The UE of signal transmission, in first object UE, the SRS pilot frequency sequence of each UE can be identical, it is also possible to no With.

Correspondingly, step 602UE is with this SRS transmission pattern, on this SRS transmission position on base station The detailed description of the invention of report SRS signal is:

UE carries out the transmission mode of frequency division with this Comb for N, on Comb position corresponding for this UE to Described base station reports SRS signal.

Wherein, when UE is to carry out SRS transmission with frequency division transmission pattern, base station receives this UE transmission SRS signal after, it is possible to use compressed sensing algorithm carries out channel estimation to the SRS signal of this UE.

As the optional embodiment of one, when the SRS transmission pattern of this UE is code division transmission mode, Now, in the second target UE, SRS pilot frequency sequence and the 3rd target UE of each UE comb Comb according to transmission Mode for M carries out frequency division, and the SRS transmission position of this UE is Comb position corresponding for this UE, its In, the second target UE is to carry out with frequency division transmission pattern in the same predetermined symbol of same subframe with this UE The UE of SRS signal transmission, the 3rd target UE include this UE and with same in same subframe of this UE Carry out the UE of SRS signal transmission with code division transmission mode in predetermined symbol.

In this embodiment, M can add 1 again more than or equal to the UE number of the second target UE, the second mesh In mark UE, the SRS pilot frequency sequence of each UE can be identical, it is also possible to different.In 3rd target UE each Using orthogonal code to make a distinction between UE, the UE number of the 3rd target UE is less than predetermined threshold value. Wherein, predetermined threshold value can be 8.

UE with code division transmission mode, and and the second target UE between each UE with this Comb as M Mode carries out frequency division, carries out the SRS information reported on Comb position corresponding for this UE.

Wherein, when UE is to carry out SRS transmission with code division transmission mode, base station receives this UE transmission SRS signal after, it is possible to use preset code division channel estimation method (the time-domain filtering algorithm etc. as traditional) The SRS signal of this UE is carried out channel estimation.Additionally, the SRS letter that the second target UE is reported by base station Number carry out channel estimation with compressed sensing algorithm.

In the embodiment of the present invention, by implementing the method described by Fig. 6, UE can be with the side of MU-MIMO Formula reports SRS information with multiple UE in the same SRS symbol of same subframe simultaneously to base station, thus can To promote the utilization rate of system spectral resources.

Refer to the structural representation that Fig. 7, Fig. 7 are a kind of base stations that the embodiment of the present invention provides, be used for performing The method that the SRS that the embodiment of the present invention provides strengthens.As it is shown in fig. 7, this base station may include that

Transmitting element 701, is used for sending SRS configuration information, and this SRS configuration information is used for indicating access base The multiple UE stood report to base station in the way of MU-MIMO in the same predetermined symbol of same subframe SRS signal.

In the embodiment of the present invention, transmitting element 701 can be to send SRS configuration information in a broadcast manner, This SRS configuration information is for indicating the multiple UE accessing this base station at same son in the way of MU-MIMO SRS signal is reported to this base station, when above-mentioned multiple UE are at certain up son in the same predetermined symbol of frame In frame during transmission, then this predetermined symbol can be last symbol of this sub-frame of uplink；As above-mentioned multiple UE When being transmission on certain special subframe, then this predetermined symbol can be that the UpPTS of this special subframe comprises One of them symbol in two symbols.

In the embodiment of the present invention, this SRS configuration information can include but not limited in above-mentioned multiple UE each Each UE in the SRS transmission pattern of each UE and above-mentioned multiple UE in the mark of UE, above-mentioned multiple UE SRS transmission position.

Receive unit 702, for receiving the SRS letter that above-mentioned multiple UE reports according to this SRS configuration information Number.

Channel estimating unit 703, for being respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports Carry out channel estimation.Concrete, channel estimating unit can be respectively directed to above-mentioned by previously described preset algorithm The SRS signal that in multiple UE, each UE reports carries out channel estimation.

Wherein, N can be more than or equal to the UE number of above-mentioned multiple UE, each UE in above-mentioned multiple UE SRS pilot frequency sequence can be identical, it is also possible to different.

Correspondingly, receive unit 702 and receive the SRS that above-mentioned multiple UE reports according to this SRS configuration information The detailed description of the invention of signal can be:

Reception unit 702 receives each UE in above-mentioned multiple UE and carries out the transmission of frequency division with this Comb for N Pattern, carries out the SRS information reported on corresponding Comb position.

It addition, channel estimating unit 703 is respectively directed to the SRS letter that in above-mentioned multiple UE, each UE reports The detailed description of the invention number carrying out channel estimation can be:

Channel estimating unit 703 utilizes compressed sensing algorithm to be respectively directed to each UE in above-mentioned multiple UE and reports SRS signal carry out channel estimation.

As the optional embodiment of one, above-mentioned multiple UE include first object UE and the second target UE, When in first object UE, the SRS transmission pattern of each UE is code division transmission mode, each in the second target UE When the SRS transmission pattern of individual UE is frequency division transmission pattern, now, each UE in the second target UE SRS pilot frequency sequence can carry out frequency division according to the mode that transmission comb Comb is M with first object UE, on The SRS transmission position stating each UE in multiple UE includes Comb position corresponding for first object UE and Comb position corresponding for each UE in two targets UE.

Wherein, M can add 1 again more than or equal to the UE number of the second target UE, each in the second target UE The SRS pilot frequency sequence of individual UE can be identical, it is also possible to different.First object UE adopts between each UE Making a distinction with orthogonal code, the UE number of first object UE is less than predetermined threshold value.Wherein, preset Threshold value can be 8, i.e. uses code division transmission mode to be once at best able to support that 8 code division users are transmitted simultaneously SRS。

Receive unit 702 and receive in first object UE each UE with code division transmission mode, the second target UE In carry out the transmission mode of frequency division between each UE and first object UE with this Comb for M, in correspondence Comb position on carry out the SRS information that reports.

Channel estimating unit 703 utilizes default code division channel estimation method to be respectively directed in first object UE each The SRS signal that UE reports carries out channel estimation, and utilizes compressed sensing algorithm to be respectively directed to the second target The SRS signal that in UE, each UE reports carries out channel estimation.

In the embodiment of the present invention, by implementing the base station shown in Fig. 7, it is possible to do not increasing SRS pilot resources The SRS signal supporting more users in the case of expense transmits simultaneously, and then can promote system spectral resources Utilization rate.

Refer to the structural representation that Fig. 8, Fig. 8 are the another kind of base stations that the embodiment of the present invention provides, be used for holding The method that the SRS that the row embodiment of the present invention provides strengthens.As shown in Figure 8, this base station 800 may include that At least one processor 801, such as CPU (Central Processing Unit, central processing unit), at least One input equipment 802, at least one output device 803, memorizer 804 assembly such as grade.Wherein, these groups Part is communicatively coupled by one or more bus 805.It will be understood by those skilled in the art that in Fig. 8 The structure of the base station illustrated is not intended that the restriction to the embodiment of the present invention, and it both can be busbar network, Can also be hub-and-spoke configuration, it is also possible to include that ratio illustrates more or less of parts, or combine some parts, Or different parts are arranged.Wherein:

In the embodiment of the present invention, input equipment 802 can include line interface, wave point etc., Ke Yiyong In the signal etc. receiving UE uplink.Output device 803 can include line interface, wave point etc., May be used for UE downstream transmission signals etc..

In the embodiment of the present invention, memorizer 804 can be high-speed RAM memorizer, it is also possible to be non-instability Memorizer (non-volatile memory), for example, at least one disk memory.Memorizer 804 is optional Can also is that at least one is located remotely from the storage device of aforementioned processor 801.As shown in Figure 8, memorizer Can include application program and data etc. in 804, the embodiment of the present invention is not construed as limiting.

In the base station shown in Fig. 8, processor 801 may be used for calling the application program of storage in memorizer 804 To perform following operation:

Triggering output device 803 and send SRS configuration information, this SRS configuration information is used for indicating access base station Multiple UE of 800 in the way of MU-MIMO in the same predetermined symbol of same subframe to base station 800 Reporting SRS signal, this SRS configuration information can include but not limited to each UE in above-mentioned multiple UE The SRS transmission position of each UE in SRS transmission pattern and above-mentioned multiple UE；

Trigger input equipment 802 and receive the SRS signal that above-mentioned multiple UE reports according to this SRS configuration information；

It is respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports and carries out channel estimation.

As the optional embodiment of one, when in above-mentioned multiple UE, the SRS transmission pattern of each UE is In above-mentioned multiple UE, the SRS pilot frequency sequence of each UE carries out frequency according to the mode that transmission comb Comb is N During the transmission mode divided, each during in above-mentioned multiple UE, the SRS transmission position of each UE is above-mentioned multiple UE Comb position corresponding for individual UE；

Wherein, processor 801 triggers input equipment 802 and receives above-mentioned multiple UE according to this SRS configuration letter The detailed description of the invention of the SRS signal that breath reports can be:

Triggering input equipment 802 receives each UE in above-mentioned multiple UE and carries out frequency division with this Comb for N Transmission mode, carries out the SRS information reported on corresponding Comb position.

Preferably, N can more than or equal to the UE number of above-mentioned multiple UE, in above-mentioned multiple UE each The SRS pilot frequency sequence of UE can be identical, it is also possible to different.

Preferably, the SRS signal that during processor 801 is respectively directed to above-mentioned multiple UE, each UE reports enters The detailed description of the invention that row channel is estimated can be:

Utilize compressed sensing algorithm to be respectively directed to the SRS signal that in above-mentioned multiple UE, each UE reports to carry out Channel is estimated.

As the optional embodiment of one, above-mentioned multiple UE include first object UE and the second target UE, When in first object UE, the SRS transmission pattern of each UE is code division transmission mode, each in the second target UE The SRS pilot frequency sequence of individual UE carries out frequency division with first object UE according to the mode that transmission comb Comb is M Transmission mode time, in above-mentioned multiple UE, the SRS transmission position of each UE includes that first object UE is corresponding The Comb position corresponding for each UE with the second target UE, Comb position；

Trigger input equipment 802 receive in described first object UE each UE with described code division transmission mode, Described second target UE carries out frequency with described Comb for M between each UE and described first object UE The transmission mode divided, carries out the SRS information reported on corresponding Comb position.

Preferably, M can add 1, in the second target UE again more than or equal to the UE number of the second target UE The SRS pilot frequency sequence of each UE can be identical, it is also possible to different.

Preferably, first object UE use orthogonal code make a distinction between each UE, first object The UE number of UE is less than predetermined threshold value.Wherein, predetermined threshold value can be 8.

Default code division channel estimation method is utilized to be respectively directed to the SRS that in first object UE, each UE reports Signal carries out channel estimation, and utilizes compressed sensing algorithm to be respectively directed in the second target UE on each UE The SRS signal of report carries out channel estimation.

In the embodiment of the present invention, by implementing the base station shown in Fig. 8, it is possible to do not increasing SRS pilot resources The SRS signal supporting more users in the case of expense transmits simultaneously, and then can promote system spectral resources Utilization rate.

Refer to the structural representation that Fig. 9, Fig. 9 are a kind of UE that the embodiment of the present invention provides, be used for performing The method that the SRS that the embodiment of the present invention provides strengthens.As it is shown in figure 9, this UE may include that

Receiving unit 901, for receiving the SRS configuration information that base station sends, this SRS configuration information is used for Instruction UE report SRS signal to base station, this SRS configuration information include UE SRS transmission pattern and The SRS transmission position of UE.

In the embodiment of the present invention, this configuration information is except SRS transmission pattern and the SRS of UE that can include UE Outside transmission location, it is also possible to the information such as transmission means MU-MIMO including the mark of UE, UE.

Transmitting element 902, for this SRS transmission pattern, reports to base station on this SRS transmission position SRS signal, so that the SRS signal that base station reports for UE carries out channel estimation.

As the optional embodiment of one, when the SRS transmission pattern of this UE is frequency division transmission pattern, The SRS pilot frequency sequence of this UE can carry out frequency division according to the mode that transmission comb Comb is N, now, is somebody's turn to do The SRS transmission position of UE is Comb position corresponding for this UE.

Wherein, N can be more than or equal to the UE number of first object UE, and first object UE includes this UE And in the same predetermined symbol of same subframe, carry out SRS signal transmission with frequency division transmission pattern with this UE UE, in first object UE, the SRS pilot frequency sequence of each UE can be identical, it is also possible to different.

Correspondingly, transmitting element 902 is with this SRS transmission pattern, on this SRS transmission position on base station The detailed description of the invention of report SRS signal can be:

Transmitting element 902 carries out the transmission mode of frequency division with this Comb for N, at the Comb that this UE is corresponding SRS signal is reported to base station on position.

As the optional embodiment of one, when the SRS transmission pattern of this UE is code division transmission mode, In second target UE, SRS pilot frequency sequence and the 3rd target UE of each UE are M according to transmission comb Comb Mode carry out frequency division, now, the SRS transmission position of this UE is Comb position corresponding for this UE.Its In, the second target UE is to carry out with frequency division transmission pattern in the same predetermined symbol of same subframe with this UE The UE of SRS signal transmission, the 3rd target UE include this UE and with same in same subframe of this UE Carry out the UE of SRS signal transmission with code division transmission mode in predetermined symbol.

Wherein, M can add 1 again more than or equal to the UE number of the second target UE, each in the second target UE The SRS pilot frequency sequence of individual UE can be identical, it is also possible to different.3rd target UE is adopted between each UE Making a distinction with orthogonal code, the UE number of the 3rd target UE is less than predetermined threshold value.Wherein, preset Threshold value can be 8.

Transmitting element 902 with code division transmission mode, and and the second target UE between each UE with this Comb Mode for M carries out frequency division, carries out the SRS information reported on Comb position corresponding for this UE.

In the embodiment of the present invention, by implementing the UE shown in Fig. 9, it is possible to many in the way of MU-MIMO Individual user reports SRS information in the same SRS symbol of same subframe simultaneously to base station, such that it is able to promote The utilization rate of system spectral resources.

Refer to the structural representation that Figure 10, Figure 10 are the another kind of UE that the embodiment of the present invention provides, be used for The method that the SRS that performing the embodiment of the present invention provides strengthens.As shown in Figure 10, this UE1000 may include that At least one processor 1001, such as CPU, at least one input equipment 1002, at least one output device 1003, memorizer 1004 assembly such as grade.Wherein, these assemblies are led to by one or more bus 1005 Letter connects.It will be understood by those skilled in the art that the structure of the UE shown in Figure 10 is not intended that this The restriction of bright embodiment, it both can be busbar network, it is also possible to be hub-and-spoke configuration, it is also possible to include ratio Illustrate more or less of parts, or combine some parts, or different parts are arranged.Wherein:

In the embodiment of the present invention, input equipment 1002 can include line interface, wave point etc., Ke Yiyong In receiving the signal etc. that base station down sends.Output device 1003 can include line interface, wave point etc., May be used for base station upstream signals etc..

In the embodiment of the present invention, memorizer 1004 can be high-speed RAM memorizer, it is also possible to be non-instability Memorizer, for example, at least one disk memory.Memorizer 1004 optionally can also is that at least one position In the storage device away from aforementioned processor 1001.As shown in Figure 10, as a kind of computer-readable storage medium Can include operating system, application program and data etc. in memorizer 1004, the embodiment of the present invention is not construed as limiting.

In the UE shown in Figure 10, processor 1001 may be used for calling the application journey of storage in memorizer 1004 Sequence is to perform following operation:

Triggering input equipment 1002 and receive the SRS configuration information that base station sends, this SRS configuration information is used for Instruction UE1000 reports SRS signal to base station, and this SRS configuration information can include but not limited to UE1000 SRS transmission pattern and the SRS transmission position of UE1000；

Triggering output device 1003, with this SRS transmission pattern, reports to base station on this SRS transmission position SRS signal, so that this SRS signal that base station reports for UE1000 carries out channel estimation.

As the optional embodiment of one, when this SRS transmission pattern is frequency division transmission pattern, UE1000 SRS pilot frequency sequence be that the mode of N carries out frequency division according to transmission comb Comb, this SRS transmission position is Comb position corresponding for UE1000；

Wherein, processor 1001 triggers output device 1003 with this SRS transmission pattern, in this SRS transmission The detailed description of the invention reporting SRS signal on position to base station can be:

Trigger output device 1003 and carry out the transmission mode of frequency division with this Comb for N, corresponding at UE1000 Comb position on report SRS signal to base station.

Preferably, N can be more than or equal to the UE number of first object UE, and first object UE includes UE And in the same predetermined symbol of same subframe, carry out SRS signal transmission with frequency division transmission pattern with UE UE, in first object UE, the SRS pilot frequency sequence of each UE can be identical, it is also possible to different.

As the optional embodiment of one, when this SRS transmission pattern is code division transmission mode, the second mesh In mark UE, SRS pilot frequency sequence and the 3rd target UE of each UE are the side of M according to transmission comb Comb Formula carries out frequency division, and this SRS transmission position is Comb position corresponding for UE1000, the second target UE be with UE1000 carries out SRS signal transmission with frequency division transmission pattern in the same predetermined symbol of same subframe UE, the 3rd target UE include UE1000 and with UE1000 in the same predetermined symbol of same subframe with Code division transmission mode carries out the UE of SRS signal transmission；

Trigger output device 1003 with code division transmission mode, and and the second target UE between each UE with This Comb is that the mode of M carries out frequency division, carries out the SRS reported on Comb position corresponding for UE1000 Information.

Preferably, the 3rd target UE use orthogonal code make a distinction between each UE, the 3rd target The UE number of UE is less than predetermined threshold value.Wherein, predetermined threshold value can be 8.

In the embodiment of the present invention, by implementing the UE shown in Figure 10, it is possible in the way of MU-MIMO with Multiple users report SRS information, such that it is able to carry in the same SRS symbol of same subframe simultaneously to base station Rise the utilization rate of system spectral resources.

Module in all embodiments of the invention or submodule, can pass through universal integrated circuit, such as CPU, Or realized by ASIC (Application Specific Integrated Circuit, special IC).

It should be noted that for each embodiment of the method aforesaid, in order to be briefly described, therefore by its all table Stating as a series of combination of actions, but those skilled in the art should know, the present invention is not by described The restriction of sequence of movement because according to the application, certain some step can use other orders or simultaneously Carry out.Secondly, those skilled in the art also should know, embodiment described in this description belongs to excellent Select embodiment, necessary to involved action and module not necessarily the application.

In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, in certain embodiment the most in detail The thin part described, may refer to the associated description of other embodiments.

Step in embodiment of the present invention method can carry out order according to actual needs and adjust, merges and delete.

Unit in embodiment of the present invention base station or UE can merge according to actual needs, divides and delete Subtract.

One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, Can be by computer program and complete to instruct relevant hardware, described program can be stored in a calculating In machine read/write memory medium, this program is upon execution, it may include such as the flow process of the embodiment of above-mentioned each method. Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, Or random access memory (Random Access Memory, be called for short RAM) etc. ROM).

The method of a kind of detection reference signal SRS the enhancing above embodiment of the present invention provided and relevant device Being described in detail, principle and the embodiment of the present invention are explained by specific case used herein Stating, the explanation of above example is only intended to help to understand method and the core concept thereof of the present invention；Meanwhile, For one of ordinary skill in the art, according to the thought of the present invention, in detailed description of the invention and range of application On all will change, in sum, this specification content should not be construed as limitation of the present invention.

Claims

1. the method that a detection reference signal SRS strengthens, it is characterised in that be applied to full dimension multi input In multi output FD-MIMO technology, described method includes:

Method the most according to claim 1, it is characterised in that as each UE in the plurality of UE The SRS pilot frequency sequence that SRS transmission pattern is each UE in the plurality of UE according to transmission comb Comb When mode for N carries out the transmission mode of frequency division, the SRS transmission position of each UE in the plurality of UE For Comb position corresponding for each UE in the plurality of UE；

Wherein, described base station receives the SRS signal that the plurality of UE reports according to described SRS configuration information, Including:

Described base station receives each UE in the plurality of UE and carries out the transmission mould of frequency division with described Comb for N Formula, carries out the SRS information reported on corresponding Comb position.

Method the most according to claim 2, it is characterised in that described N is more than or equal to the plurality of The UE number of UE, in the plurality of UE, the SRS pilot frequency sequence of each UE is identical.

The most according to the method in claim 2 or 3, it is characterised in that described base station is respectively directed to described The SRS signal that in multiple UE, each UE reports carries out channel estimation, including:

Described base station utilizes compressed sensing algorithm to be respectively directed to the SRS that in the plurality of UE, each UE reports Signal carries out channel estimation.

Method the most according to claim 1, it is characterised in that the plurality of UE includes first object UE and the second target UE, when in described first object UE, the SRS transmission pattern of each UE is that code division passes Defeated pattern, in described second target UE the SRS pilot frequency sequence of each UE and described first object UE according to When the transmission mode that the mode that Comb is M carries out frequency division is combed in transmission, each UE in the plurality of UE SRS transmission position includes that described Comb position corresponding for first object UE is each with described second target UE Comb position corresponding for individual UE；

Described base station receive in described first object UE each UE with described code division transmission mode, described second Target UE carries out between each UE and described first object UE the transmission of frequency division with described Comb for M Pattern, carries out the SRS information reported on corresponding Comb position.

Method the most according to claim 5, it is characterised in that described M is more than or equal to described second mesh The UE number of mark UE adds 1 again, and in described second target UE, the SRS pilot frequency sequence of each UE is identical.

Method the most according to claim 5, it is characterised in that each UE in described first object UE Between use orthogonal code make a distinction, the UE number of described first object UE be less than predetermined threshold value.

Method the most according to claim 7, it is characterised in that described predetermined threshold value is 8.

9. according to the method according to any one of claim 5-8, it is characterised in that described base station pin respectively The SRS signal reporting each UE in the plurality of UE carries out channel estimation, including:

Described base station utilizes default code division channel estimation method to be respectively directed to each UE in described first object UE The SRS signal reported carries out channel estimation, and utilizes compressed sensing algorithm to be respectively directed to described second target The SRS signal that in UE, each UE reports carries out channel estimation.

10. the method that a detection reference signal SRS strengthens, it is characterised in that how defeated be applied to full dimension Entering in multi output FD-MIMO technology, described method includes:

11. methods according to claim 10, it is characterised in that when described SRS transmission pattern is frequency When dividing transmission mode, the SRS pilot frequency sequence of described UE carries out frequency according to the mode that transmission comb Comb is N Point, described SRS transmission position is Comb position corresponding for described UE；

Wherein, described UE is with described SRS transmission pattern, to described base station on described SRS transmission position Report SRS signal, including:

Described UE carries out the transmission mode of frequency division with described Comb for N, at the Comb that described UE is corresponding SRS signal is reported to described base station on position.

12. methods according to claim 11, it is characterised in that described N is more than or equal to first object The UE number of UE, described first object UE include described UE and with same in same subframe of described UE Carry out the UE, described first object UE of SRS signal transmission with described frequency division transmission pattern in one predetermined symbol In the SRS pilot frequency sequence of each UE identical.

13. methods according to claim 10, it is characterised in that when described SRS transmission pattern is code During point transmission mode, in the second target UE, the SRS pilot frequency sequence of each UE and the 3rd target UE are according to biography Defeated comb Comb is that the mode of M carries out frequency division, and described SRS transmission position is Comb corresponding for described UE Position, described second target UE be with described UE in the same predetermined symbol of same subframe with frequency division transmission Pattern carries out the UE of SRS signal transmission, described 3rd target UE include described UE and with described UE Carry out the UE of SRS signal transmission with described code division transmission mode in the same predetermined symbol of same subframe；

Described UE with described code division transmission mode, and and described second target UE between each UE with institute State the mode that Comb is M and carry out frequency division, Comb position corresponding for described UE carries out the SRS reported Information.

14. methods according to claim 13, it is characterised in that described M is more than or equal to described second The UE number of target UE adds 1 again, and in described second target UE, the SRS pilot frequency sequence of each UE is identical.

15. according to the method described in claim 13 or 14, it is characterised in that in described 3rd target UE Using orthogonal code to make a distinction between each UE, the UE number of described 3rd target UE is less than presetting Threshold value.

16. methods according to claim 15, it is characterised in that described predetermined threshold value is 8.

17. 1 kinds of base stations, it is characterised in that including:

18. base stations according to claim 17, it is characterised in that as each UE in the plurality of UE The SRS pilot frequency sequence that SRS transmission pattern is each UE in the plurality of UE according to transmission comb Comb When mode for N carries out the transmission mode of frequency division, the SRS transmission position of each UE in the plurality of UE For Comb position corresponding for each UE in the plurality of UE；

The SRS signal that the described reception unit the plurality of UE of reception reports according to described SRS configuration information Mode particularly as follows:

Described reception unit receives each UE in the plurality of UE and carries out the biography of frequency division with described Comb for N Defeated pattern, carries out the SRS information reported on corresponding Comb position.

19. base stations according to claim 18, it is characterised in that described N is more than or equal to the plurality of The UE number of UE, in the plurality of UE, the SRS pilot frequency sequence of each UE is identical.

20. according to the base station described in claim 18 or 19, it is characterised in that described channel estimating unit Be respectively directed to the SRS signal that in the plurality of UE, each UE reports carry out channel estimation mode particularly as follows:

Described channel estimating unit utilizes compressed sensing algorithm to be respectively directed to each UE in the plurality of UE and reports SRS signal carry out channel estimation.

21. base stations according to claim 17, it is characterised in that the plurality of UE includes the first mesh Mark UE and the second target UE, when in described first object UE, the SRS transmission pattern of each UE is code division Transmission mode, in described second target UE, the SRS pilot frequency sequence of each UE is pressed with described first object UE When carrying out the transmission mode of frequency division according to the mode that transmission comb Comb is M, each UE in the plurality of UE SRS transmission position include described Comb position corresponding for first object UE and described second target UE In corresponding for each UE Comb position；

Described reception unit receives in described first object UE each UE with described code division transmission mode, described Second target UE carries out frequency division with described Comb for M between each UE and described first object UE Transmission mode, carries out the SRS information reported on corresponding Comb position.

22. base stations according to claim 21, it is characterised in that described M is more than or equal to described second The UE number of target UE adds 1 again, and in described second target UE, the SRS pilot frequency sequence of each UE is identical.

23. base stations according to claim 21, it is characterised in that in described first object UE each Using orthogonal code to make a distinction between UE, the UE number of described first object UE is less than pre-determined threshold Value.

24. base stations according to claim 23, it is characterised in that described predetermined threshold value is 8.

25. according to the base station according to any one of claim 21-24, it is characterised in that described channel is estimated Unit is respectively directed to the SRS signal that in the plurality of UE, each UE reports to carry out the mode of channel estimation and has Body is:

Described channel estimating unit utilizes default code division channel estimation method to be respectively directed to described first object UE In the SRS signal that reports of each UE carry out channel estimation, and utilize compressed sensing algorithm to be respectively directed to institute State the SRS signal that in the second target UE, each UE reports and carry out channel estimation.

26. 1 kinds of user terminal UE, it is characterised in that including:

27. base stations according to claim 26, it is characterised in that when described SRS transmission pattern is frequency When dividing transmission mode, the SRS pilot frequency sequence of described UE carries out frequency according to the mode that transmission comb Comb is N Point, described SRS transmission position is Comb position corresponding for described UE；

Described transmitting element is with described SRS transmission pattern, on described SRS transmission position on described base station Report SRS signal mode particularly as follows:

Described transmitting element carries out the transmission mode of frequency division with described Comb for N, corresponding at described UE SRS signal is reported to described base station on Comb position.

28. base stations according to claim 27, it is characterised in that described N is more than or equal to first object The UE number of UE, described first object UE include described UE and with same in same subframe of described UE Carry out the UE, described first object UE of SRS signal transmission with described frequency division transmission pattern in one predetermined symbol In the SRS pilot frequency sequence of each UE identical.

29. base stations according to claim 26, it is characterised in that when described SRS transmission pattern is code During point transmission mode, in the second target UE, the SRS pilot frequency sequence of each UE and the 3rd target UE are according to biography Defeated comb Comb is that the mode of M carries out frequency division, and described SRS transmission position is Comb corresponding for described UE Position, described second target UE be with described UE in the same predetermined symbol of same subframe with frequency division transmission Pattern carries out the UE of SRS signal transmission, described 3rd target UE include described UE and with described UE Carry out the UE of SRS signal transmission with described code division transmission mode in the same predetermined symbol of same subframe；

Described transmitting element with described code division transmission mode, and and described second target UE between each UE Mode with described Comb as M carries out frequency division, reports on Comb position corresponding for described UE SRS information.

30. base stations according to claim 29, it is characterised in that described M is more than or equal to described second The UE number of target UE adds 1 again, and in described second target UE, the SRS pilot frequency sequence of each UE is identical.

31. according to the base station described in claim 29 or 30, it is characterised in that in described 3rd target UE Using orthogonal code to make a distinction between each UE, the UE number of described 3rd target UE is less than presetting Threshold value.

32. base stations according to claim 31, it is characterised in that described predetermined threshold value is 8.