CN105991264B

CN105991264B - A kind of sending method of measuring reference signals, equipment and system

Info

Publication number: CN105991264B
Application number: CN201510057156.8A
Authority: CN
Inventors: 王瑜新; 李劲菊; 陈艺戬; 鲁照华; 李儒岳
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2015-02-03
Filing date: 2015-02-03
Publication date: 2019-11-26
Anticipated expiration: 2035-02-03
Also published as: WO2016124060A1; CN105991264A

Abstract

The invention discloses the sending methods of measuring reference signals (SRS) a kind of, this method comprises: the configuration information of SRS is arranged in base station, and the configuration information of the SRS are issued to terminal device；The configuration information includes: the precoding enable instruction for being used to indicate the terminal device and whether carrying out precoding to the SRS；Wherein, the precoding enable instruction includes: the transmission block quantity or antenna port of downlink transfer mode or descending control signaling format or terminal device, the joint instructions information of scrambling code ID and the number of plies.The present invention further simultaneously discloses the equipment and system for realizing the method.

Description

A kind of sending method of measuring reference signals, equipment and system

Technical field

The present invention relates to measuring reference signals in the communications field (Sounding Reference Signal, referred to as SRS) Transmission technology more particularly to a kind of sending method of SRS, equipment and system.

Background technique

SRS is to be used to measure radio channel information (Channel State between a kind of terminal device and base station Information, referred to as CSI) signal.In long evolving system, bandwidth that UE is indicated according to eNB, frequency domain position, sequence The parameters such as column cyclic shift, period and sub-frame offset periodically send uplink on the last one data symbol for sending subframe SRS.ENB judges the CSI of UE uplink according to the SRS received, and carries out frequency domain selection scheduling, closed loop function according to obtained CSI The operations such as rate control.

It is proposed in the research of existing LTE-A Release 10 (LTE-A version 10): in uplink communication, it should make With non-precoded SRS, it may be assumed that the proprietary SRS of antenna, and to reference for demodulation signal (the De Modulation of PUSCH Reference Signal, referred to as DMRS) then carry out precoding.Base station can be estimated by receiving non-precoded SRS Capable original CSI, and the DMRS that have passed through precoding cannot then make base station estimate the original CSI of uplink.At this point, when UE is used When multiple antennas sends non-precoded SRS, SRS resource required for each UE can increase, and also having resulted in system can be with The UE quantity of concurrent multiplexing declines.UE can be controlled by high-level signaling (also referred to as being triggered by trigger type 0) or downlink Information (is also referred to as triggered) both triggering modes by trigger type 1 and sends SRS, is based on high-level signaling triggering Period SRS is aperiodic SRS based on Downlink Control Information triggering.Although increasing non-week in LTE-A Release 10 Phase sends the mode of SRS, improves the utilization rate of SRS resource to a certain extent, improves the flexibility of scheduling of resource.

But in the research of the following LTE-A Release 13 (LTE-A version 13), the MIMO (Full of complete dimension Dimension-MIMO, referred to as FD-MIMO) or MIMO (Massive-MIMO) system of/a large amount of antenna in order to reduce downlink The resource overhead of pilot tone and the feedback quantity for reducing UE usually can obtain downlink CSI by measurement SRS using channel reciprocity, Therefore, to the multiplexing capacity of SRS and channel estimation accuracy of measurement, just more stringent requirements are proposed.How SRS is further saved Resource improves SRS resource utilization rate, improves the channel estimating performance of SRS, reduces interference of the SRS to adjacent area, more effective to realize FD-MIMO/Massive-MIMO systematic difference is supported on ground, is a problem to be solved.It is asked in the related technology above-mentioned Topic, there is no effective solution scheme at present.

Summary of the invention

To solve existing technical problem, the embodiment of the present invention provide a kind of measuring reference signals sending method, Equipment and system.

The embodiment of the invention provides the sending methods of measuring reference signals (SRS) a kind of, this method comprises:

The configuration information of SRS is arranged in base station, and the configuration information of the SRS is issued to terminal device；

The configuration information includes: the precoding for being used to indicate the terminal device and whether carrying out precoding to the SRS Enable instruction；

Wherein, the precoding enable instruction includes:

Downlink transfer mode or the transmission block quantity or antenna port of descending control signaling format or terminal device are disturbed The joint instructions information of code ID and the number of plies.

The embodiment of the invention also provides the sending methods of SRS a kind of, this method comprises:

Terminal device receives the configuration information for the SRS that base station issues, and sends precoding according to the configuration information of the SRS SRS or do not carry out the SRS of precoding；

Wherein, the precoding enable instruction includes:

The embodiment of the invention also provides a kind of base station, the base station includes: setup module and sending module；Wherein,

The setup module for the configuration information of SRS to be arranged, and is forwarded to the sending module；

The sending module, for issuing the configuration information of the SRS to terminal device；

Wherein, the configuration information includes: and is used to indicate the terminal device whether to carry out the pre- of precoding to the SRS Encode enable instruction；

The precoding enable instruction includes:

The embodiment of the invention also provides a kind of terminal device, the terminal device includes: that receiving module and processing are sent Module；Wherein,

The receiving module for receiving the configuration information for the SRS that base station issues, and is forwarded to the processing and sends mould Block；

The processing sending module sends the SRS of precoding for the configuration information according to the SRS or does not prelist The SRS of code；

Wherein, the precoding enable instruction includes:

The embodiment of the invention also provides the transmission system of SRS a kind of, which includes: base station and terminal described above Equipment.

The configuration of SRS is arranged in sending method, equipment and the system of measuring reference signals provided in an embodiment of the present invention, base station Information, and issue to terminal device the configuration information of the SRS；The configuration information includes: to be used to indicate the terminal device The precoding enable instruction of precoding whether is carried out to the SRS；Wherein, the precoding enable instruction includes: Downlink transfer mode or the transmission block quantity or antenna port of descending control signaling format or terminal device, scrambling code ID and layer Several joint instructions information.The embodiment of the present invention can realize that user terminal sends the SRS that have passed through precoding, by by SRS's Precoding makes to can control and transmission mode or descending control signaling format or transmission block quantity or antenna port scrambling code ID and the number of plies The binding of joint instructions information, solve the problems, such as that SRS precoding makes can control, save the expense of downlink signaling, thus real Now more effective SRS precoding is sent, and saves SRS multiplexed resource, reduces interference of the SRS to adjacent area, and then has reached raising system The effect of system overall performance.

Detailed description of the invention

In attached drawing (it is not necessarily drawn to scale), similar appended drawing reference can describe phase in different views As component.Similar reference numerals with different letter suffix can indicate the different examples of similar component.Attached drawing with example and Unrestricted mode generally shows each embodiment discussed herein.

Fig. 1 is the pectinate texture schematic diagram of SRS in the related technology；

Fig. 2 is the sending method implementation flow chart of measuring reference signals described in the embodiment of the present invention；

Fig. 3 is the sending method implementation flow chart of measuring reference signals described in another embodiment of the present invention；

Fig. 4 is the structural schematic diagram of base station described in the embodiment of the present invention；

Fig. 5 is the structural schematic diagram of terminal device described in the embodiment of the present invention；

Fig. 6 is the configuration schematic diagram for the configuration information that base station described in the specific embodiment of the invention two is sent to terminal device.

Specific embodiment

By the relevant technologies it is found that the ascending physical signal of long term evolution (Long Term Evolution, referred to as LTE) system Channel includes Physical Random Access Channel (Physical Random Access Channel, referred to as PRACH), physical uplink Shared channel (Physical uplink shared channel, referred to as PUS CH), Physical Uplink Control Channel (Physical uplink control channel, referred to as PUCCH).

In LTE, and physical downlink control channel PDCCH (Physical downlink control channe l, referred to as It is PDCCH) for carrying uplink and downlink scheduling information and uplink power control information.Base station (e-Node-B, referred to as eNB) User terminal (User Equi pment, referred to as UE) can be configured by Downlink Control Information or terminal device receives height The configuration of layer (higher layers), also referred to as configures UE by high-level signaling.Downlink Control Information (the Downlink Control Information, referred to as DCI) format (format) be divided into DCI format 0,1,1A, 1B, 1C, 1D, 2, 2A, 2B, 3,3A etc..Wherein,

The DCI format 0 is used to indicate Physical Uplink Shared Channel (Physical uplink shared c Hannel, referred to as PUSCH) scheduling；

The DCI format 1,1A, 1B, 1C, 1D are used for the Physical Downlink Shared Channel (Physical of single transmission block Downlink Shared Channel, referred to as PDSCH) different transmission mode；

The DCI format 2,2A, 2B are used for the different transmission mode of downlink PDSCH space division multiplexing；

The DCI format 3,3A are used for Physical Uplink Control Channel (Physical uplink control c Hannel, referred to as PUCCH) and PUSCH power control instruction transmission.

The transport block size of above-mentioned DCI format 0,1A, 3,3A is the same, wherein DCI format 0, and 1A uses 1 bit Carry out format differentiation.

In LTE system, the SRS sequence that UE is sent is by a root sequenceCyclic shift α is carried out in time domain It obtains.Different cyclic shift α is carried out to same root sequence, it will be able to obtain different SRS sequences, and obtain this It is mutually orthogonal between a little SRS sequences, therefore, these SR S sequences can be distributed to different UE and used, to realize between UE CDMA.

In addition, the subcarrier (sub-carrier) of SRS is spaced apart in the same SRS bandwidth, that is to say, that The transmission of SRS uses pectinate texture, and the quantity of the frequency comb (frequency comb) in LTE system is 2, also corresponds to time domain Repeat factor value (RePetition Factor, referred to as RPF) be 2.Fig. 1 is the pectinate texture signal of SRS in the related technology Figure, as shown in Figure 1, one in two frequency combs, Comb=0 or Comb=1 are only used when each UE sends SR S, it is shown. In this way, frequency comb Comb position instruction of the UE according to the top signaling of 1 bit, only uses the son that frequency domain index is even number or odd number Carrier wave sends SRS.This pectinate texture allows more UE to send SRS in same SRS bandwidth.

In same SRS bandwidth, multiple UE can use different cyclic shifts in the same frequency comb, then pass through Code division multiplexing send SRS, can also two UE in different frequency combs, SRS is sent by frequency division multiplexing.For example, In In LTE system, the UE of SRS is sent in some SRS bandwidth (4 RB), the cyclic shift that can be used there are 8, can be used Frequency comb be 2, thus a total of 16 resources that can be used to send SRS of UE, that is to say, that in this SRS bandwidth, 16 SRS can be at most sent simultaneously.Due to not supporting uplink single user multiple-input and multiple-output (Single in LTE system User Multiple Input Multiple Output, referred to as SU-MI MO), UE can only have a day at each moment Line sends SRS, so a UE only needs a SRS resource, therefore, in above-mentioned SRS bandwidth, system can at most answer simultaneously With 16 UE.

Advanced LTE (LTE-Advanced, referred to as LTE-A) system is the next-generation evolution system of LTE system, in uplink It supports SU-MIMO, and 4 antennas at most can be used as uplink transmitting antenna.That is, UE can be in synchronization Send SRS simultaneously on more antennas, and eNB needs to estimate the shape on every channel according to the SRS received on every antenna State.Descending control information format increases format 4 and is used for uplink MEVlO transmissions on the basis of LTE original format, Format 2C is used for the MIMO transmission of 8 antenna of downlink, and format 2D is used for down collaboration multiple spot (Coordinated Multi- Point, referred to as CoMP) system transmission.

In the embodiment of the present invention, the configuration information of SRS is arranged in base station, and the configuration of the SRS is issued to terminal device Information；The configuration information includes: to be used to indicate the terminal device to enable the SRS precoding for whether carrying out precoding Indicate information；Wherein, the precoding enable instruction includes: downlink transfer mode or descending control signaling format or end Transmission block quantity or antenna port, the joint instructions information of scrambling code ID and the number of plies of end equipment.

The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

Fig. 2 is the sending method implementation flow chart of SRS described in the embodiment of the present invention, as shown in Fig. 2, this method comprises:

Step 201: the configuration information of SRS is arranged in base station, and the configuration information includes: to be used to indicate the terminal device pair Whether the SRS carries out the precoding enable instruction of precoding；

Step 202: base station issues the configuration information of the SRS to terminal device；

Wherein, the precoding enable instruction includes: downlink transfer mode or descending control signaling format or end Transmission block quantity or antenna port, the joint instructions information of scrambling code ID and the number of plies of end equipment.

The embodiment of the present invention can realize that user terminal sends the SRS that have passed through precoding, by enabling the precoding of SRS The joint instructions of control and transmission mode or descending control signaling format or transmission block quantity or antenna port scrambling code ID and the number of plies Information binding, solves the problems, such as that SRS precoding makes can control, saves the expense of downlink signaling, to realize more effective SRS precoding is sent, and saves SRS multiplexed resource, reduces interference of the SRS to adjacent area, and then reached raising systematic entirety energy Effect.

In the embodiment of the present invention, when the precoding enable instruction includes downlink transfer mode, the base station setting The configuration information of SRS, comprising:

When base station configurating terminal device is downlink transfer mode, then the SRS of terminal device transmission is set for by prelisting The SRS of code；When base station configurating terminal device is uplink transmission mode, then it is non-precoded that the SRS of terminal device transmission, which is arranged, SRS；

Alternatively, when base station configurating terminal device is downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10 or when downlink transfer mode 11, then the SRS that terminal device transmission is arranged is SRS by precoding；When base station configurating terminal Equipment is in addition to the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11 When transmission mode, then the SRS that terminal device transmission is arranged is non-precoded SRS.

In the embodiment of the present invention, when the precoding enable instruction includes descending control signaling format, the base station The configuration information of SRS is set, comprising:

When base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling format When the descending control signaling triggering terminal equipment of 2D sends SRS, then the SRS that setting terminal device in base station is sent is by precoding SRS；When base station uses descending control signaling format 0 or descending control signaling format 4 or descending control signaling format 1A When descending control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is non-precoded SRS；

Alternatively, when base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling When the descending control signaling triggering terminal equipment of format 2D or descending control signaling format 1A sends SRS, then base station configurating terminal The SRS that equipment is sent is the SRS by precoding；When base station uses descending control signaling format 0 or descending control signaling format When 4 descending control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is non-precoded SRS。

It is described when the precoding enable instruction includes the transmission block quantity of terminal device in the embodiment of the present invention The configuration information of base station setting SRS, comprising:

When base station is 1 or only one uplink/downlink biography to the quantity of terminal equipment configuration uplink/downlink transmission block Defeated piece it is enabled when, then the SRS that terminal device transmission is arranged is SRS by precoding；When base station to terminal equipment configuration uplink/ When the quantity of downstream transmission blocks is 2 or all enabled two uplink/downlink transmission blocks, then the SRS that terminal device transmission is arranged is Non-precoded SRS.

In the embodiment of the present invention, the precoding enable instruction includes: the joint of antenna port, scrambling code ID and the number of plies When indicating information, the configuration information of the base station setting SRS, comprising:

When the joint instructions of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies When high 1 value of information is 0 or 1, then the SRS of terminal device transmission is set for the SRS by precoding；

When the joint instructions of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies When high 1 value of information is 1 or 0, then the SRS that terminal device transmission is arranged is non-precoded SRS.

In one embodiment, the precoding enable instruction further include: the period of instruction precoding SRS and subframe The information of biasing.

In the embodiment of the present invention, the configuration information of the base station setting SRS, further includes:

The base station by high-rise RRC signaling be the terminal device be arranged the precoding SRS period and subframe it is inclined The information set.

In one embodiment, the precoding enable instruction further include: the instruction information of pre-coding matrix index.

In the embodiment of the present invention, when the precoding enable instruction includes: the instruction information of pre-coding matrix index, The configuration information of the base station setting SRS, comprising:

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array, then it is arranged Terminal device sends non-precoded SRS；

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array, then set Set SRS of the terminal device transmission Jing Guo precoding.

The embodiment of the invention also provides the sending methods of measuring reference signals SRS a kind of, as shown in figure 3, this method packet It includes:

Step 301: terminal device receives the configuration information for the SRS that base station issues, and the configuration information includes: to be used to indicate Whether the terminal device carries out the precoding enable instruction of precoding to the SRS；

Step 302: terminal device sends the SRS of precoding according to the configuration information of the SRS or does not carry out precoding SRS；

The precoding enable instruction includes: downlink transfer mode or descending control signaling format or terminal device Transmission block quantity or antenna port, scrambling code ID and the number of plies joint instructions information.

In the embodiment of the present invention, the terminal device according to the SRS configuration information send precoding SRS or not into The SRS of row precoding, comprising:

When precoding enable instruction instruction in the configuration information of the SRS is enabled, the terminal device is to will send out The SRS sent carries out precoding, and the SRS of precoding is sent to the base station；

When precoding enable instruction instruction in the configuration information of the SRS is not enabled, the terminal device is to institute It states base station and sends the SRS for not carrying out precoding.

In the embodiment of the present invention, when the precoding enable instruction includes downlink transfer mode,

The terminal device sends the SRS of precoding according to the configuration information or does not carry out the SRS of precoding, comprising:

Terminal device determines when itself being configured as downlink transfer mode, sends the SRS Jing Guo precoding；Determine itself quilt When being configured to uplink transmission mode, non-precoded SRS is sent；

Alternatively, terminal device, which determines, itself is configured as downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer When mode 10 or downlink transfer mode 11, the SRS Jing Guo precoding is sent；It determines and itself is configured as except the downlink transfer When transmission mode except mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11, non-prelists is sent The SRS of code.

In the embodiment of the present invention, when the precoding enable instruction includes descending control signaling format,

The triggering that the terminal device receives base station transmission sends descending control signaling format 2B or the downlink control of SRS When the descending control signaling of signaling format 2C or descending control signaling format 2D, the SRS Jing Guo precoding is sent；Receive base station The descending control signaling format 0 or descending control signaling format 4 or descending control signaling format 1A of the triggering transmission SRS of transmission Descending control signaling when, send non-precoded SRS；

Alternatively, the triggering that the terminal device receives base station transmission sends the descending control signaling format 2B or downlink of SRS When the descending control signaling of control signaling format 2C or descending control signaling format 2D or descending control signaling format 1A, send By the SRS of precoding；The triggering for receiving base station transmission sends the descending control signaling format 0 or descending control signaling lattice of SRS When the descending control signaling of formula 4, non-precoded SRS is sent.

In the embodiment of the present invention, when the precoding enable instruction includes the transmission block quantity of terminal device,

When the quantity of the uplink/downlink transmission block of the terminal device of base station configuration is 1 or only one uplink/ When downstream transmission blocks enable, the terminal device sends the SRS Jing Guo precoding；When base station configuration the terminal device it is upper When the quantity of row/downstream transmission blocks is 2 or all enabled two uplink/downlink transmission blocks, the terminal device sends non-prelist The SRS of code.

In the embodiment of the present invention, the precoding enable instruction includes the joint of antenna port, scrambling code ID and the number of plies When indicating information,

The height of the joint instructions information of the antenna port in descending control signaling, scrambling code ID and the number of plies that terminal device receives When 1 value is 0 or 1, the SRS Jing Guo precoding is sent；The antenna port in descending control signaling, scrambling code ID and the layer received When high 1 value of several joint instructions information is 1 or 0, non-precoded SRS is sent.

In the embodiment of the present invention, the terminal device sends the SRS of precoding according to the configuration information or does not carry out pre- The SRS of coding, comprising:

The terminal device determines that the subframe index of the transmission SRS subframe of base station setting meets the instruction precoding SRS When relationship between period and sub-frame offset, the SRS Jing Guo precoding is sent；Otherwise, non-precoded SRS is sent.

In the embodiment of the present invention, when the precoding enable instruction includes the instruction information of pre-coding matrix index,

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array, the end End equipment sends non-precoded SRS；

It is described when the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array Terminal device sends the SRS Jing Guo precoding.

The embodiment of the invention also provides a kind of base stations, as shown in figure 4, the base station 40 includes: setup module 401 and hair Send module 402；Wherein,

The setup module 401 for the configuration information of SRS to be arranged, and is forwarded to the sending module；

The sending module 402, for issuing the configuration information of the SRS to terminal device；

The precoding enable instruction includes:

When base station configurating terminal device is downlink transfer mode, the setup module 401, for terminal device hair to be arranged The SRS sent is the SRS by precoding；When base station configurating terminal device is uplink transmission mode, the setup module 401, SRS for terminal device transmission to be arranged is non-precoded SRS；

Alternatively, when base station configurating terminal device is downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10 or when downlink transfer mode 11, the setup module 401, the SRS for terminal device transmission to be arranged is by precoding SRS；When base station configurating terminal device be except the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and under When transmission mode except row transmission mode 11, the setup module 401, the SRS for terminal device transmission to be arranged is non-pre- The SRS of coding.

When base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling format When the descending control signaling triggering terminal equipment of 2D sends SRS, the setup module 401, for terminal device transmission to be arranged SRS is the SRS by precoding；When base station uses descending control signaling format 0 or descending control signaling format 4 or downlink control When the descending control signaling triggering terminal equipment of signaling format 1A processed sends SRS, the setup module 401, for terminal to be arranged The SRS that equipment is sent is non-precoded SRS；

Alternatively, when base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling When the descending control signaling triggering terminal equipment of format 2D or descending control signaling format 1A sends SRS, the setup module 401, the SRS sent for configurating terminal device is the SRS by precoding；When base station using descending control signaling format 0 or When the descending control signaling triggering terminal equipment of descending control signaling format 4 sends SRS, the setup module 401, for being arranged The SRS that terminal device is sent is non-precoded SRS.

When base station is 1 or only one uplink/downlink biography to the quantity of terminal equipment configuration uplink/downlink transmission block Defeated piece it is enabled when, the setup module 401, the SRS for terminal device transmission to be arranged is SRS by precoding；Work as base station It is described to set when to the quantity of terminal equipment configuration uplink/downlink transmission block be 2 or two uplink/downlink transmission blocks all enable Module 401 is set, the SRS for terminal device transmission to be arranged is non-precoded SRS.

In the embodiment of the present invention, the precoding enable instruction includes: the joint of antenna port, scrambling code ID and the number of plies When indicating information,

When the joint instructions of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies When high 1 value of information is 0 or 1, the setup module 401, the SRS for terminal device transmission to be arranged is by precoding SRS；

When the joint instructions of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies When high 1 value of information is 1 or 0, the setup module 401, the SRS for terminal device transmission to be arranged is non-precoded SRS。

In the embodiment of the present invention, the setup module 401 is also used to be that the terminal device is set by high-rise RRC signaling Set the period of the precoding SRS and the information of sub-frame offset.

In the embodiment of the present invention, when the precoding enable instruction includes: the instruction information of pre-coding matrix index,

It is described to set when the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array Module 401 is set, sends non-precoded SRS for terminal device to be arranged；

It is described when the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array Setup module 401, for SRS of the terminal device transmission Jing Guo precoding to be arranged.

The embodiment of the invention also provides a kind of terminal devices, as shown in figure 5, the terminal device 50 includes: reception mould Block 501 and processing sending module 502；Wherein,

The receiving module 501 for receiving the configuration information for the SRS that base station issues, and is forwarded to the processing and sends Module；

The processing sending module 502 sends the SRS of precoding for the configuration information according to the SRS or does not carry out The SRS of precoding；

Wherein, the precoding enable instruction includes:

In the embodiment of the present invention,

The processing sending module 502, the precoding enable instruction in configuration information for determining the SRS refer to When showing enabled, precoding is carried out to the SRS to be sent, and the SRS of precoding is sent to the base station；

When determining that the precoding enable instruction instruction in the configuration information of the SRS does not enable, the base station Xiang Suoshu hair Send the SRS for not carrying out precoding.

The processing sending module 502 when for determining that the terminal device is configured as downlink transfer mode, sends warp Cross the SRS of precoding；When determining that the terminal device is configured as uplink transmission mode, non-precoded SRS is sent；

Alternatively, for determining that the terminal device is configured as downlink transfer mode 8 or downlink transfer mode 9 or downlink When transmission mode 10 or downlink transfer mode 11, the SRS Jing Guo precoding is sent；Determine that the terminal device is configured as removing Transmission mode except the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11 When, send non-precoded SRS.

The processing sending module 502 receives the downlink control of the triggering transmission SRS of base station transmission for the terminal device When the descending control signaling of signaling format 2B or descending control signaling format 2C or descending control signaling format 2D processed, warp is sent Cross the SRS of precoding；The triggering that the terminal device receives base station transmission sends the descending control signaling format 0 or downlink of SRS When the descending control signaling of control signaling format 4 or descending control signaling format 1A, non-precoded SRS is sent；

Alternatively, for the terminal device receive base station transmission triggering send SRS descending control signaling format 2B or When the descending control signaling of descending control signaling format 2C or descending control signaling format 2D or descending control signaling format 1A, Send the SRS Jing Guo precoding；The terminal device receive base station transmission triggering send SRS descending control signaling format 0, Or descending control signaling format 4 descending control signaling when, send non-precoded SRS.

The processing sending module 502, the uplink/downlink transmission block of the terminal device for determining base station configuration When quantity is 1 or only one enabled uplink/downlink transmission block, the SRS Jing Guo precoding is sent；Determine base station configuration When the quantity of the uplink/downlink transmission block of the terminal device is 2 or all enabled two uplink/downlink transmission blocks, send non- The SRS of precoding.

The processing sending module 502, the antenna port in descending control signaling received for terminal device, scrambling code ID When high 1 value with the joint instructions information of the number of plies is 0 or 1, the SRS Jing Guo precoding is sent；Terminal device receives down When high 1 value of the joint instructions information of antenna port, scrambling code ID in row control signaling and the number of plies is 1 or 0, send non-pre- The SRS of coding.

In the embodiment of the present invention, the processing sending module 502 is also used to determine the transmission SRS subframe of base station setting When subframe index meets the relationship between the instruction precoding SRS period and sub-frame offset, the SRS Jing Guo precoding is sent； Otherwise, non-precoded SRS is sent.

The processing sending module 502, for determining what base station was indicated to the pre-coding matrix index of terminal equipment configuration When pre-coding matrix is unit battle array, non-precoded SRS is sent；Determine pre-coding matrix index of the base station to terminal equipment configuration When the pre-coding matrix of instruction is non-unity battle array, the SRS Jing Guo precoding is sent.

The embodiment of the invention also provides the transmission system of measuring reference signals SRS a kind of, which includes: described above Base station 40 and terminal device 50.

Below with reference to the specific embodiments of several different scenes, present invention is described.

Embodiment one

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown；Wherein, downlink transfer mode and the enabled finger of precoding Show information correlation, it may be assumed that the precoding enable instruction includes downlink transfer mode.

Alternatively, when base station configurating terminal device is downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10 or when downlink transfer mode 11, then the SRS that terminal device transmission is arranged is SRS by precoding；When base station configurating terminal Equipment is in addition to the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11 When transmission mode, then the SRS that terminal device transmission is arranged is non-precoded SRS；

Precoding information (Precoding if carrying out precoding, according to entrained by inside descending control signaling Matrix Index, referred to as PMI) carry out precoding；Or according to last transmission or nearest corresponding descending control signaling Precoding information carries out precoding；Or precoding is carried out according to the precoding information in the configuration information；Alternatively, UE passes through survey Measure reference signal (CSI-RS) for channel state information in downlink reference signal and/or the proprietary reference signal of cell (CRS) to obtain down channel, and up channel is predicted by channel reciprocity, the up channel is subjected to singular value decomposition Left singular matrix, right singular matrix and diagonal matrix are obtained, column corresponding to maximum singular value are selected from right singular matrix Vector carries out precoding to SRS as pre-coding matrix.

Descending control signaling in the present embodiment be format 4 or format 2B or format 2C or format 2D or format 2E。

When precoding enable instruction instruction is enabled, the user terminal carries out the SRS to be sent Precoding, and the SRS after precoding is sent to the base station；When precoding enable instruction instruction is not enabled, to The base station sends the SRS for not carrying out precoding.

Embodiment two

The sending method of the measuring reference signals provided in the present embodiment by include the system of base station and user terminal come It realizes.Wherein,

The base station sends measuring reference signals for triggering user terminal, and issues described in transmission to user terminal The configuration information of measuring reference signals；

Above-mentioned configuration information includes following one or more instruction information: the enabled instruction letter of the precoding of measuring reference signals The precoding information of breath, measuring reference signals.

The user terminal, for sending measuring reference signals to base station according to the configuration information obtained.

In the present embodiment, base station can be according to Fig. 6 institute to the configuration information that user terminal issues transmission measuring reference signals The mode of showing is configured:

For aperiodic SRS, then it is configured to be not required to by precoding；

For period SRS, base station pass through high-rise RRC signaling be user terminal configure the user terminal proprietary SRS period and The period of precoding SRS, wherein the period of precoding SRS is the integral multiple in user terminal proprietary SRS period.In period SRS Subframe on, when subframe index meets precoding SRS period and sub-frame offset relationship, such as: meet (10n_f+k_SRS- T_offset)modT_SRSWhen=0 relationship, then the SRS of precoding is sent, otherwise, sends the SRS without precoding.Wherein, n_f For system frame number, k_SRSFor the subframe index number in frame, T_offsetFor sub-frame offset, T_SRSFor the period of precoding SRS.Base station It can be according to scene, channel conditions, movement speed locating for user terminal etc. because of the usually period of allocating pre-coding SRS and subframe The value of biasing.

In the present embodiment, the precoding enable instruction of above-mentioned measuring reference signals is used to indicate measuring reference signals Whether precoding is carried out.

Precoding in the present embodiment, if to carry out precoding, according to entrained by inside above-mentioned descending control signaling Information carries out precoding；Or it is prelisted according to the precoding information of last transmission or nearest corresponding descending control signaling Code；Or precoding is carried out according to the precoding information in above-mentioned configuration information；Alternatively, UE passes through in measurement downlink reference signal Reference signal (CSI-RS) and/or cell for channel state information proprietary reference signal (CRS) obtains down channel, And up channel is predicted by channel reciprocity, up channel progress singular value decomposition is obtained into left singular matrix, right surprise Different matrix and diagonal matrix select column vector corresponding to maximum singular value as pre-coding matrix pair from right singular matrix SRS carries out precoding.

In the present embodiment, above-mentioned descending control signaling equally can for format 4 or format 2B or format 2C or Format 2D or format 2E.

Embodiment three

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to Show whether the terminal device carries out the precoding enable instruction of precoding, the enabled instruction of the precoding to the SRS Information includes: the period for indicating precoding SRS and the information of sub-frame offset, and it is the end that the base station, which passes through high-rise RRC signaling, The period of the precoding SRS and the information of sub-frame offset is arranged in end equipment.

In the subframe of the transmission SRS of base station setting, when subframe index meets between precoding SRS period and sub-frame offset Relationship when, such as: meet (10n_f+k_SRS-T_offset)modT_SRS=0 relationship, or meet (k_SRS-T_offset,1)mod5 =0 relationship, then terminal device sends the SRS of precoding；Otherwise, the SRS without precoding is sent.

Wherein, n_fFor system frame number, k_SRSFor the subframe index number in frame, T_offsetFor sub-frame offset, T_SRSFor precoding The period of SRS.It base station can be according to scene, channel conditions, movement speed locating for user terminal etc. because of usually allocating pre-coding The period of SRS and the value of sub-frame offset.

For FDD and TDD system, the precoding SRS period and sub-frame offset configuration can refer to Tables 1 and 2.

1 user terminal of table proprietary precoding SRS period and sub-frame offset configuration (FDD system)

2 user terminal of table proprietary precoding SRS period and sub-frame offset configuration (TDD system)

Example IV

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown；Wherein, descending control signaling format makes with precoding It can indicate information correlation, it may be assumed that the precoding enable instruction includes descending control signaling format.

Alternatively, when base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling When the descending control signaling triggering terminal equipment of format 2D or descending control signaling format 1A sends SRS, then base station configurating terminal The SRS that equipment is sent is the SRS by precoding；When base station uses descending control signaling format 0 or descending control signaling format When 4 descending control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is non-precoded SRS；

Embodiment five

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown；Wherein, the quantity of transmission block and the enabled finger of precoding Show information correlation, it may be assumed that the precoding enable instruction includes the transmission block quantity of terminal device.

When base station is 1 or only one uplink/downlink biography to the quantity of terminal equipment configuration uplink/downlink transmission block Defeated piece it is enabled when, then the SRS that terminal device transmission is arranged is SRS by precoding；When base station to terminal equipment configuration uplink/ When the quantity of downstream transmission blocks is 2 or all enabled two uplink/downlink transmission blocks, then the SRS that terminal device transmission is arranged is Non-precoded SRS；

Embodiment six

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown；Wherein, the antenna port of user, scrambling code ID The joint instructions information of (identity, identity) and the number of plies is related to precoding enable instruction, it may be assumed that the precoding is enabled Indicate that information includes: the joint instructions information of antenna port, scrambling code ID and the number of plies.

When the joint instructions of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies When high 1 value of information is 0 or 1, then the SRS of terminal device transmission is set for the SRS by precoding；When base station is to terminal High 1 value of the joint instructions information of antenna port, scrambling code ID in the descending control signaling of device configuration and the number of plies be 1 or When 0, then the SRS that terminal device transmission is arranged is non-precoded SRS；

Embodiment seven

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown；Wherein, the instruction information of pre-coding matrix index with The precoding enable instruction is related, it may be assumed that the precoding enable instruction includes: the instruction of pre-coding matrix index Information.

When the pre-coding matrix of pre-coding matrix index instruction is unit battle array, the corresponding unit matrix of as 2 transmitting antennasOr 4 corresponding unit matrix of transmitting antennaWhen, then the SRS that terminal device transmission is arranged is non-prelists The SRS of code；When the pre-coding matrix of pre-coding matrix index instruction is non-unity battle array, then the SRS of terminal device transmission is set For the SRS of precoding.

If carrying out precoding, precoding is carried out according to the instruction information of pre-coding matrix index.

Embodiment eight

In the present embodiment, base station issues the configuration information of SRS to user terminal, wherein the configuration information includes: for referring to The precoding enable instruction that precoding whether is carried out to the SRS shown.Precoding enable instruction includes:

When precoding enable instruction, which is designated as SRS, to pass through precoding, then matrix is usedTo SRS Carry out precoding, wherein R_INFor the covariance matrix of interference plus noise, η is base station and the predefined parameter of user equipment, ()^T Expression takes the transposition of matrix.

Base station receives the SRS after precoding, and measurement obtains uplink equivalent channel, then obtains downlink by channel reciprocity Equivalent channel, when user equipment uses matrixWhen being filtered reception downlink signal, then it can interfere plus make an uproar with albefaction downlink Sound so as to increase downlink transmission capacity, and then has achieved the effect that improve systematic entirety energy.

Pass through above description, it is seen that the embodiment of the present invention can realize that user terminal sends the SRS that have passed through precoding, pass through The precoding of SRS is made to can control and transmission mode or descending control signaling format or transmission block quantity or antenna port scrambling code ID It is bound with the joint instructions information of the number of plies, solves the problems, such as that SRS precoding makes can control, save the expense of downlink signaling, To realize that more effective SRS precoding is sent, SRS multiplexed resource is saved, reduces interference of the SRS to adjacent area, and then reach Improve the effect of systematic entirety energy.

It should be understood by those skilled in the art that, the embodiment of the present invention can provide as method, system or computer program Product.Therefore, the shape of hardware embodiment, software implementation or embodiment combining software and hardware aspects can be used in the present invention Formula.Moreover, the present invention, which can be used, can use storage in the computer that one or more wherein includes computer usable program code The form for the computer program product implemented on medium (including but not limited to magnetic disk storage and optical memory etc.).

The present invention be referring to according to the method for the embodiment of the present invention, the process of equipment (system) and computer program product Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates, Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or The function of being specified in multiple boxes.

These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one The step of function of being specified in a box or multiple boxes.

The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.

Claims

1. a kind of sending method of measuring reference signals SRS, which is characterized in that this method comprises:

The configuration information includes: to be used to indicate the terminal device to enable the SRS precoding for whether carrying out precoding Indicate information；

Wherein, the precoding enable instruction includes:

Downlink transfer mode or the transmission block quantity or antenna port of descending control signaling format or terminal device, scrambling code ID With the joint instructions information of the number of plies；

When the precoding enable instruction includes descending control signaling format, the configuration information of the base station setting SRS, Include:

When base station uses descending control signaling format 2B's or descending control signaling format 2C or descending control signaling format 2D When descending control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is by precoding SRS；When base station uses under descending control signaling format 0 or descending control signaling format 4 or descending control signaling format 1A When row control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is non-precoded SRS；

Alternatively, when base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling format When the descending control signaling triggering terminal equipment of 2D or descending control signaling format 1A sends SRS, then base station configurating terminal device The SRS of transmission is the SRS by precoding；When base station uses descending control signaling format 0 or descending control signaling format 4 When descending control signaling triggering terminal equipment sends SRS, then the SRS that setting terminal device in base station is sent is non-precoded SRS.

2. the method according to claim 1, wherein the precoding enable instruction includes downlink transfer mould When formula, the configuration information of the base station setting SRS, comprising:

When base station configurating terminal device is downlink transfer mode, then the SRS that terminal device transmission is arranged is by precoding SRS；When base station configurating terminal device is uplink transmission mode, then it is non-precoded that the SRS of terminal device transmission, which is arranged, SRS；

Alternatively, when base station configurating terminal device be downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10, Or when downlink transfer mode 11, then the SRS of terminal device transmission is set for the SRS by precoding；When base station, configurating terminal is set The standby biography in addition to the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11 When defeated mode, then the SRS that terminal device transmission is arranged is non-precoded SRS.

3. the method according to claim 1, wherein the precoding enable instruction includes terminal device When transmission block quantity, the configuration information of the base station setting SRS, comprising:

When base station to the quantity of terminal equipment configuration uplink/downlink transmission block be 1 or only one uplink/downlink transmission block When enabled, then the SRS of terminal device transmission is set for the SRS by precoding；When base station is to terminal equipment configuration uplink/downlink When the quantity of transmission block is 2 or all enabled two uplink/downlink transmission blocks, then it is non-pre- that the SRS of terminal device transmission, which is arranged, The SRS of coding.

4. the method according to claim 1, wherein the precoding enable instruction include: antenna port, When the joint instructions information of scrambling code ID and the number of plies, the configuration information of the base station setting SRS, comprising:

When the joint instructions information of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies High 1 value when being 0 or 1, then the SRS that terminal device transmission is arranged is SRS by precoding；

When the joint instructions information of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies High 1 value be 1 or 0 when, then be arranged terminal device transmission SRS be non-precoded SRS.

5. the method according to claim 1, wherein the precoding enable instruction further include: instruction is pre- Encode the period of SRS and the information of sub-frame offset.

6. according to the method described in claim 5, it is characterized in that, the configuration information of base station setting SRS, further includes:

The base station passes through period and the sub-frame offset that high-rise RRC signaling is that the precoding SRS is arranged in the terminal device Information.

7. the method according to claim 1, wherein the precoding enable instruction further include: precoding The instruction information of matrix index.

8. the method according to the description of claim 7 is characterized in that the precoding enable instruction includes: precoding square When the instruction information of battle array index, the configuration information of the base station setting SRS, comprising:

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array, then terminal is set Equipment sends non-precoded SRS；

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array, then end is set End equipment sends the SRS Jing Guo precoding.

9. a kind of sending method of measuring reference signals SRS, which is characterized in that this method comprises:

Terminal device receives the configuration information for the SRS that base station issues, and sends precoding according to the configuration information of the SRS The SRS or SRS for not carrying out precoding；

Wherein, the precoding enable instruction includes:

When the precoding enable instruction includes descending control signaling format, the terminal device matches confidence according to described Breath sends the SRS of precoding or does not carry out the SRS of precoding, comprising:

The triggering that the terminal device receives base station transmission sends the descending control signaling format 2B or descending control signaling of SRS When the descending control signaling of format 2C or descending control signaling format 2D, the SRS Jing Guo precoding is sent；Receive base station transmission Triggering send SRS descending control signaling format 0 or descending control signaling format 4 or descending control signaling format 1A under When row control signaling, non-precoded SRS is sent；

Alternatively, the triggering that the terminal device receives base station transmission sends descending control signaling format 2B or the downlink control of SRS When the descending control signaling of signaling format 2C or descending control signaling format 2D or descending control signaling format 1A, sends and pass through The SRS of precoding；The triggering for receiving base station transmission sends the descending control signaling format 0 or descending control signaling format 4 of SRS Descending control signaling when, send non-precoded SRS.

10. according to the method described in claim 9, it is characterized in that, the terminal device is sent out according to the configuration information of the SRS It send the SRS of precoding or does not carry out the SRS of precoding, comprising:

When precoding enable instruction instruction in the configuration information of the SRS is enabled, the terminal device is to being sent The SRS carries out precoding, and the SRS of precoding is sent to the base station；

When precoding enable instruction instruction in the configuration information of the SRS is not enabled, the terminal device is to the base Stand the SRS for sending and not carrying out precoding.

11. according to the method described in claim 9, it is characterized in that, the precoding enable instruction includes downlink transfer When mode,

Terminal device determines when itself being configured as downlink transfer mode, sends the SRS Jing Guo precoding；Determine that itself is configured When for uplink transmission mode, non-precoded SRS is sent；

Alternatively, terminal device, which determines, itself is configured as downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10 or when downlink transfer mode 11, send the SRS Jing Guo precoding；It determines and itself is configured as except the downlink transfer mode 8, it when transmission mode except downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11, sends non-precoded SRS。

12. according to the method described in claim 9, it is characterized in that, the precoding enable instruction includes terminal device Transmission block quantity when,

When the quantity of the uplink/downlink transmission block of the terminal device of base station configuration is 1 or only one uplink/downlink When transmission block enables, the terminal device sends the SRS Jing Guo precoding；When base station configuration the terminal device uplink/ When the quantity of downstream transmission blocks is 2 or all enabled two uplink/downlink transmission blocks, the terminal device sends non-precoded SRS.

13. according to the method described in claim 9, it is characterized in that, the precoding enable instruction include antenna port, When the joint instructions information of scrambling code ID and the number of plies,

The joint instructions information of the antenna port in descending control signaling, scrambling code ID and the number of plies that terminal device receives it is 1 high When value is 0 or 1, the SRS Jing Guo precoding is sent；The antenna port in descending control signaling, scrambling code ID and the number of plies received Joint instructions information high 1 value be 1 or 0 when, send non-precoded SRS.

14. according to the method described in claim 9, it is characterized in that, the precoding enable instruction further include: instruction is pre- Encode the period of SRS and the information of sub-frame offset.

15. according to the method for claim 14, which is characterized in that the terminal device sends pre- according to the configuration information The SRS of the coding or SRS for not carrying out precoding, comprising:

The terminal device determines that the subframe index of the transmission SRS subframe of base station setting meets the instruction precoding SRS period When relationship between sub-frame offset, the SRS Jing Guo precoding is sent；Otherwise, non-precoded SRS is sent.

16. according to the method described in claim 9, it is characterized in that, the precoding enable instruction further include: precoding The instruction information of matrix index.

17. according to the method for claim 16, which is characterized in that the precoding enable instruction includes precoding square When the instruction information of battle array index,

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array, the terminal is set Preparation send non-precoded SRS；

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array, the terminal Equipment sends the SRS Jing Guo precoding.

18. a kind of base station, which is characterized in that the base station includes: setup module and sending module；Wherein,

Wherein, the configuration information includes: the precoding for being used to indicate the terminal device and whether carrying out precoding to the SRS Enable instruction；

The precoding enable instruction includes:

When the precoding enable instruction includes descending control signaling format,

When base station uses descending control signaling format 2B's or descending control signaling format 2C or descending control signaling format 2D When descending control signaling triggering terminal equipment sends SRS, the setup module, for the SRS of terminal device transmission to be arranged as warp Cross the SRS of precoding；When base station uses descending control signaling format 0 or descending control signaling format 4 or descending control signaling When the descending control signaling triggering terminal equipment of format 1A sends SRS, the setup module, for terminal device transmission to be arranged SRS is non-precoded SRS；

Alternatively, when base station uses descending control signaling format 2B or descending control signaling format 2C or descending control signaling format When the descending control signaling triggering terminal equipment of 2D or descending control signaling format 1A sends SRS, the setup module is used for The SRS that configurating terminal device is sent is the SRS by precoding；When base station is controlled using descending control signaling format 0 or downlink When the descending control signaling triggering terminal equipment of signaling format 4 sends SRS, the setup module, for terminal device hair to be arranged The SRS sent is non-precoded SRS.

19. base station according to claim 18, which is characterized in that the precoding enable instruction includes downlink transfer When mode,

When base station configurating terminal device is downlink transfer mode, the setup module, for the SRS of terminal device transmission to be arranged For the SRS Jing Guo precoding；When base station configurating terminal device is uplink transmission mode, the setup module, for end to be arranged The SRS that end equipment is sent is non-precoded SRS；

Alternatively, when base station configurating terminal device be downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer mode 10, Or when downlink transfer mode 11, the setup module, the SRS for terminal device transmission to be arranged is the SRS by precoding；When Base station configurating terminal device is except the downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer When transmission mode except mode 11, the setup module, the SRS for terminal device transmission to be arranged is non-precoded SRS.

20. base station according to claim 18, which is characterized in that the precoding enable instruction includes terminal device Transmission block quantity when,

When base station to the quantity of terminal equipment configuration uplink/downlink transmission block be 1 or only one uplink/downlink transmission block When enabled, the setup module, the SRS for terminal device transmission to be arranged is the SRS by precoding；When base station is set to terminal When the quantity of standby collocating uplink/downstream transmission blocks is 2 or all enabled two uplink/downlink transmission blocks, the setup module, SRS for terminal device transmission to be arranged is non-precoded SRS.

21. base station according to claim 18, which is characterized in that the precoding enable instruction includes: antenna end When the joint instructions information of mouth, scrambling code ID and the number of plies,

When the joint instructions information of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies High 1 value when being 0 or 1, the setup module, the SRS for terminal device transmission to be arranged is SRS by precoding；

When the joint instructions information of antenna port of the base station into the descending control signaling of terminal equipment configuration, scrambling code ID and the number of plies High 1 value be 1 or 0 when, the setup module, for be arranged terminal device transmission SRS be non-precoded SRS.

22. base station according to claim 18, which is characterized in that the precoding enable instruction further include: instruction The period of precoding SRS and the information of sub-frame offset.

23. base station according to claim 22, which is characterized in that

The setup module, be also used to by high-rise RRC signaling be the terminal device be arranged the precoding SRS period and The information of sub-frame offset.

24. base station according to claim 18, which is characterized in that the precoding enable instruction further include: prelist The instruction information of code matrix index.

25. base station according to claim 24, which is characterized in that the precoding enable instruction includes: precoding When the instruction information of matrix index,

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is unit battle array, the setting mould Block sends non-precoded SRS for terminal device to be arranged；

When the pre-coding matrix that base station is indicated to the pre-coding matrix index of terminal equipment configuration is non-unity battle array, the setting Module, for SRS of the terminal device transmission Jing Guo precoding to be arranged.

26. a kind of terminal device, which is characterized in that the terminal device includes: receiving module and processing sending module；Wherein,

The receiving module for receiving the configuration information for the SRS that base station issues, and is forwarded to the processing sending module；

The processing sending module sends the SRS of precoding for the configuration information according to the SRS or does not carry out precoding SRS；

Wherein, the precoding enable instruction includes:

The processing sending module receives the descending control signaling of the triggering transmission SRS of base station transmission for the terminal device When the descending control signaling of format 2B or descending control signaling format 2C or descending control signaling format 2D, send by prelisting The SRS of code；The triggering that the terminal device receives base station transmission sends the descending control signaling format 0 or downlink control letter of SRS When enabling the descending control signaling of format 4 or descending control signaling format 1A, non-precoded SRS is sent；

Alternatively, sending the descending control signaling format 2B or downlink of SRS for the triggering that the terminal device receives base station transmission When the descending control signaling of control signaling format 2C or descending control signaling format 2D or descending control signaling format 1A, send By the SRS of precoding；The terminal device receive base station transmission triggering send SRS descending control signaling format 0 or under When the descending control signaling of row control signaling format 4, non-precoded SRS is sent.

27. terminal device according to claim 26, which is characterized in that

The processing sending module, the precoding enable instruction instruction in the configuration information for determining the SRS are enabled When, precoding is carried out to the SRS to be sent, and the SRS of precoding is sent to the base station；

When determining that the precoding enable instruction instruction in the configuration information of the SRS does not enable, the base station Xiang Suoshu is sent not Carry out the SRS of precoding.

28. terminal device according to claim 26, which is characterized in that the precoding enable instruction includes downlink When transmission mode,

The processing sending module when for determining that the terminal device is configured as downlink transfer mode, is sent by prelisting The SRS of code；When determining that the terminal device is configured as uplink transmission mode, non-precoded SRS is sent；

Alternatively, for determining that the terminal device is configured as downlink transfer mode 8 or downlink transfer mode 9 or downlink transfer When mode 10 or downlink transfer mode 11, the SRS Jing Guo precoding is sent；Determine that the terminal device is configured as except described When transmission mode except downlink transfer mode 8, downlink transfer mode 9, downlink transfer mode 10 and downlink transfer mode 11, hair Send non-precoded SRS.

29. terminal device according to claim 26, which is characterized in that the precoding enable instruction includes terminal When the transmission block quantity of equipment,

The processing sending module, for determining that the quantity of uplink/downlink transmission block of the terminal device of base station configuration is 1 or when only one uplink/downlink transmission block enabled, send the SRS Jing Guo precoding；Determine the end of base station configuration When the quantity of the uplink/downlink transmission block of end equipment is 2 or all enabled two uplink/downlink transmission blocks, send non-precoded SRS.

30. terminal device according to claim 26, which is characterized in that the precoding enable instruction includes antenna When the joint instructions information of port, scrambling code ID and the number of plies,

The processing sending module, the antenna port in descending control signaling received for terminal device, scrambling code ID and the number of plies High 1 value of joint instructions information when being 0 or 1, send SRS Jing Guo precoding；The downlink control that terminal device receives When high 1 value of the joint instructions information of antenna port, scrambling code ID in signaling and the number of plies is 1 or 0, send non-precoded SRS。

31. terminal device according to claim 26, which is characterized in that the precoding enable instruction further include: Indicate the period of precoding SRS and the information of sub-frame offset.

32. terminal device according to claim 31, which is characterized in that

It is pre- to be also used to determine that the subframe index of the transmission SRS subframe of base station setting meets the instruction for the processing sending module When encoding the relationship between SRS period and sub-frame offset, the SRS Jing Guo precoding is sent；Otherwise, non-precoded SRS is sent.

33. terminal device according to claim 26, which is characterized in that the precoding enable instruction further include: The instruction information of pre-coding matrix index.

34. terminal device according to claim 33, which is characterized in that the precoding enable instruction includes prelisting When the instruction information of code matrix index,

The processing sending module, the precoding square indicated for determining base station to the pre-coding matrix index of terminal equipment configuration When battle array is unit battle array, non-precoded SRS is sent；It is pre- to determine that base station is indicated to the pre-coding matrix index of terminal equipment configuration When encoder matrix is non-unity battle array, the SRS Jing Guo precoding is sent.

35. a kind of transmission system of measuring reference signals SRS, which is characterized in that the system includes: to appoint in claim 18-25 Terminal device described in any one of base station and claim 26-34 described in one.