WO2013082948A1 - Srs transmission and srs transmission indicating method and device - Google Patents

Abstract

Disclosed are an SRS transmission and SRS transmission indicating method and device, the method comprising: determining the configuration information of a UE for determining at least two SRS transmission powers, the at least two SRS transmission powers being used for measurements for different purposes; indicating the determined configuration information to the UE, so that the UE determines the at least two SRS transmission powers according to the indication, and adopts different SRS transmission powers at different times to transmit the SRS. The present invention enables the UE to adopt different SRS transmission powers at different times to transmit the SRS as required, thus the SRS transmission power satisfies the requirements for uplink and downlink transmission measurements.

Description

 Method and device for transmitting SRS and indicating SRS transmission The present application claims to be submitted to the Chinese Patent Office on December 6, 2011, the application number is 201110402042.4, and the invention name is "a method and device for transmitting SRS and indicating SRS transmission". The priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference.

Technical field

 The present invention relates to the field of wireless communication technologies, and in particular, to a method and a device for transmitting an SRS and indicating SRS transmission. Background technique

 In the existing LTE-A (Long Term Evolution-Advance) system, uplink SRS

(Sounding Reference Symbol) can be used for uplink channel shield measurement for uplink scheduling, or channel dissimilarity for downlink channel information for downlink scheduling and transmission.

 There are two different types of uplink SRS in the current standard: periodic SRS and aperiodic SRS. The periodic SRS needs to be configured by the base station to configure the SRS transmission period, and the terminal is configured to periodically send the SRS according to the configuration. The aperiodic SRS is triggered by the PDCCH (Physical Downlink Control Channel), and the terminal only sends the SRS once after the trigger.

 The transmit power of the uplink SRS is obtained by the following formula:

Corpse = min { P _{CMA c} , _{SRS 0FPSET} , _C (m) + \0 log ₁₀ (M _{SRS c} ) + _{0 PUSC3⁄4C} + _c · PL _C + f _c } where. Is the maximum transmit power of the UE, P _SRS . _FFSET,. 0) is the SRS transmission power adjustment value, m=0 and m=l respectively indicate the transmission power adjustment values of the periodic SRS and the aperiodic SRS, and the value range is determined by the high-level parameter Ks. When Ks=0, the value range is For [-10.5, 12], the step size is 1.5dB; when Ks=1.25, the value range is [-3, 12], and the step size is ldB, and the specific value is notified by higher layer signaling; (M _{SRS e} ) is the transmission bandwidth of the SRS, P. _{PUSC C} is a cell broadcast parameter _Ρ . ― _N . _Mnd — _puseH and UE-specific high-level power control parameters P. The sum of the _PUSCH is the compensation factor. The PL _C is the downlink path loss estimate, which is obtained by the UE. The value is the CRS (Cell Reference Signal) transmit power of the downlink base station and the RSRP reported by the UE. The ratio of (Reference Signal Receiving Power) is the closed-loop power control parameter, which is obtained by the power control command in DCI (Downlink Control Information) formatO/4/3/3A. Can be either an accumulated value or an absolute value. Among them, for the parameter ^ ^ and the former, through the high-level signaling notification, quasi-static power control can be performed, occupying 4 bits, the range is [-7, 8], and the step size is ldB. The latter is notified by the PDCCH signaling, and may be an accumulated value of the previous value and the _Pracff , or may be an absolute value ^ = 4^^.

 The values of the power control parameters indicated in different DCI formats are different, as shown in Table 1:

Table 1 Power control commands in FormatO/3/4 (2 bits) δ H of the _praCT absolute value mode of the accumulation mode

 (only supported by format 0/4)

 0 -1 -4

 1 0 -1

2 1 1

 3 3 4

Power control commands in _Format3A (1 bit) _{praCT in} accumulation mode

 0 -1

 1 1

RRH (full name in English and Chinese), also known as RRU (Ratio Remote Unit), RRE (full name in Chinese and English), distributed antenna, etc., is a radio unit separated from BBU (Building Base Band Unit). . Usually RRH and BBU are placed in different geographical locations. The RRH includes components such as RF circuits, A/D conversion, D/A conversion, and optical transmission modules. The RRH is connected to the BBU through optical fibers. Distributed RRH is a network form that utilizes RRH networking. The RRH is dispersed inside a cell. Because of the small distance from the user terminal, the terminal can provide high-profile communication services to the terminal. Since the RRH data is processed centrally by the BBU, this brings about the possibility of efficient cooperation between RRHs. Therefore, distributed RRH becomes an important scenario for CoMP (Coodinated Multi-Point) research.

 The deployment of distributed RRHs can be divided into two types: macro stations and macro stations. As shown in Figure la, there is an RRH deployment with a macro station. The scenario with a macro station is generally an RRH added to the existing network to meet the hotspot coverage of the local area. An RRH with a macro station does not need to cover all locations, so its geographic location is generally random (related to the location where the hotspot occurs), and the RRH without the macro station needs to cover all locations of the cell.

 In the uplink UL CoMP transmission, the network side receiving end can receive the data sent by the UE (User Equipment) through multiple transmission points (including the above RRH), and improve the detection performance by combining the received signals. In this case, the uplink SRS can be used for the detection of the uplink channel, and the receiving end of the network side determines the transmission point set according to the channel strength, and performs scheduling according to the detected channel information to determine the RI ( Rank Indication) transmitted by the UE. /PMI (Precoding Metrix Indicator) / CQI (Channel Quality Indicator). Since the uplink PUSCH (Physical Uplink Shared Channel) transmission power is unique, generally only the thousands of transmission points closest to the UE need to be used for channel detection, and the SRS transmission power only needs to satisfy these points. measuring. For example, in Figures la and lb, only the two nearest RRHs are needed for sounding detection.

In downlink DL CoMP transmission, the network side receiver uses the measurement of the uplink SRS according to the channel dissimilarity. Channel information of the line, which can be used for scheduling, determining the coordinated set/measurement set/transmission set of the UE and the frequency domain resource and CQI, and can also be used for the base station side CS (full name in English and Chinese) / CB (full name in English and Chinese) ) or a CoMP transmission operation such as JP (full name in English and Chinese).

 Because the transmission power of different transmission points may be different, the coordinated set of UEs may cover a larger range and more transmission points. If SRS measurement is to be performed at these transmission points, SRS needs to be transmitted at a large transmission power. Launch to ensure the reliability of the measurement. For example, in Figure la, the macro station Macro and all RRHs are in the cooperative set of UE1 and UE2, and SRS detection is performed.

 In the prior art, both the periodic SRS and the aperiodic SRS have only a unique transmit power value, which cannot meet different uplink channel measurement requirements. If the power value is configured according to the requirements of the uplink transmission, the requirement of the downlink determination measurement set cannot be met; if the SRS is transmitted according to the larger transmission power, the measurement for the uplink transmission is a waste of power. Summary of the invention

 The present invention provides a method and a device for transmitting SRS and indicating SRS transmission, which can enable the transmission power of the SRS to meet the requirements of uplink transmission measurement and downlink transmission measurement.

 The present invention provides a method for a network side device to indicate a sounding of a sounding reference signal SRS, including:

 Determining configuration information of the user equipment UE for determining at least two SRS transmission powers, where the at least two SRS transmission powers are transmission powers used for measurement for different purposes;

 Determining the determined configuration information to the UE, so that the UE determines the at least two SRS transmission functions according to the indication. The invention further provides a method for the user equipment UE to send the SRS, including:

 Receiving, by the network side device, configuration information for determining at least two SRS transmission powers, where the at least two SRS transmission powers include a transmission power used by an SRS for uplink channel measurement, and a downlink channel according to channel dissimilarity The measured transmit power used by the SRS;

 And determining, according to the configuration information, the at least two SRS transmission powers, and transmitting the SRS by using different SRS transmission powers on different resources according to the indication of the network side device.

 The present invention further provides a network side device, including: the at least two SRS transmission powers are transmission powers used for measurement for different purposes;

 a power configuration indication unit, configured to indicate the determined configuration information to the UE, to enable the UE to determine at least two SRS transmission powers according to the indication, and instruct the UE to send the SRS by using different SRS transmission powers on different resources. .

 The present invention also provides a user equipment UE, including:

a power configuration obtaining unit, configured to receive, by the network side device, configuration information used to determine at least two SRS transmission powers; The SRS sending unit is configured to determine at least two SRS transmission powers according to the configuration information, and send the SRS by using different SRS transmission powers at different times according to the indication of the network side device.

 The network side device provided by the present invention, the method for instructing SRS transmission, the UE and the method for transmitting the SRS have the following beneficial effects: The UE can perform SRS transmission with different transmission powers at different times according to different requirements. The transmission power of the SRS is made to meet the requirements of the uplink transmission measurement and the downlink transmission measurement; the SRS transmission power is reduced as much as possible while satisfying the demand. DRAWINGS

 Figure la is a schematic diagram of uplink transmission and downlink transmission in an RRH scenario when different cell IDs are used;

 Figure lb is a schematic diagram of uplink transmission and downlink transmission in an RRH scenario when the same cell ID is used;

 2 is a flowchart of a method for a network side device to indicate SRS transmission according to an embodiment of the present invention;

 3 is a flowchart of a method for a UE to send an SRS according to an embodiment of the present invention;

 4 is a structural diagram of a network side device according to an embodiment of the present invention;

 FIG. 5 is a structural diagram of a UE according to an embodiment of the present invention. detailed description

 The network side device provided by the present invention, the method for instructing SRS transmission, the UE, and the method for transmitting the SRS thereof are described in more detail below with reference to the accompanying drawings and embodiments.

 In the existing LTE-A system, the SRS can be used for uplink channel shield measurement for uplink scheduling, and can also use channel dissimilarity for acquiring downlink channel information for downlink scheduling and transmission. In the CoMP system, due to the independence of uplink and downlink transmission, the channel information that needs to be measured for uplink transmission and the channel information that needs to be obtained for downlink transmission are often different, so the set of transmission points that need to perform sounding measurement is also different. For uplink transmission, usually the measurement point is a transmission point closer to the UE, so the SRS transmission power is not too high; if the measurement information is used for the selection of the downlink CoMP set, a larger range of transmission point measurement is required, and the measurement requirement is required. The SRS transmission power will also be higher. In order to meet different measurement requirements and reduce the transmission power of the SRS as much as possible, the present invention provides a network side device, a method for indicating SRS transmission, a UE, and a method for transmitting the same, and the following is a specific embodiment of the present invention The embodiment will be described.

 In the description process, the implementations from the network side and the UE side will be described separately, and then the implementation of the two will be described by way of example, but this does not mean that the two must cooperate with the implementation. In fact, when the UE and the network When the side devices are implemented separately, the problems existing on the UE side and the network side are also respectively solved, but when the two are combined, a better technical effect is obtained.

 As shown in FIG. 2, the network side device indicates a method for sending an SRS, including:

Step 201: Determine configuration information of the user equipment UE for determining at least two SRS transmission powers, where Less than two SRS transmission powers, which are transmission powers used for measurement for different purposes, preferably including transmission power used for SRS for uplink channel measurement, and SRS for downlink channel measurement according to channel dissimilarity Transmit power

 Step 202: Indicate the determined configuration information to the UE, so that the UE determines, according to the indication, the at least two SRSs, the method provided by the embodiment of the present invention, and the configuration information indicated to the UE may determine at least two SRS transmission powers, thereby The UE performs the SRS transmission with different transmission powers on different resources. Since the two transmission powers include the SRS transmission power that satisfies the uplink channel measurement requirement and the SRS transmission power that satisfies the downlink channel measurement requirement, the SRS can be reduced as much as possible. In the case of the transmission power, the transmission power of the SRS is made to satisfy the requirements of the uplink transmission measurement and the downlink transmission measurement.

 The network side device provided by the present invention indicates that the method for transmitting the SRS is suitable for being applied to the CoMP system, and the network side device is specifically a base station that communicates with the UE. For the case of a macro base station, it may be a macro base station or a low power node (RRH), and for a case without a macro base station, it is a low power node (RRH).

 The manner in which the UE sends the SRS includes the periodic transmission transmission SRS and the aperiodic transmission SRS, specifically, the network side indicates to the UE, or is configured separately on the UE, and the periodic transmission transmission SRS and the aperiodic transmission SRS are respectively given below. Next, the network side device of the present invention indicates a preferred embodiment of SRS transmission.

 For the case of periodically transmitting the SRS, the base station determines configuration information of the UE for determining at least two SRS transmission powers, and indicates the determined configuration information to the UE; and sends an SRS transmission period and/or SRS transmission corresponding to each SRS transmission power configuration. The resource occupies information and indicates to the UE, so that the UE transmits the SRS with different SRS transmission powers on different resources. These indications may be simultaneous indications or separate indications.

 Preferably, the foregoing indication may be sent to the UE by using high layer signaling.

 Preferably, in the embodiment of the present invention, the configuration information used to determine the at least two SRS transmission powers includes: calculating a correlation parameter and a value thereof in a setting formula of the SRS transmission power, where different values are set for the same related parameter. Or specifically including calculating a relevant parameter in the setting formula of the SRS transmission power and its value, and newly adding a new parameter for determining a new value of the relevant parameter and a value of the new parameter, wherein the configuration information is the same Set a value for the relevant parameter.

Preferably, the relevant parameter in the setting formula for calculating the SRS transmission power includes a transmission power adjustment value S _{RS 0FFSET c} (m), and in the configuration information, different values are set for p _{SRS FFSET e} (m); The configuration information includes P _SRS - (^ and indicates P _SRS - (the value of the new parameter ^ _set and ^ _set of the offset, the ARS OFFSET.CO in the configuration information) is set to one; ' m=0 or m=l, m=0, P _{SRS 0FFSET} , _C O) denotes the transmission power adjustment value of the periodic SRS, m=l, P _{SRS FFSET e} (m) denotes the transmission power adjustment value of the aperiodic SRS .

Therefore, in the embodiment of the present invention, the relevant parameters in the current calculation formula for calculating the SRS transmission power may be extended to obtain a plurality of power values, for example, P _{SRS 0FFSET c} (m) may be extended, and new parameters may be introduced for obtaining more The power values, such as the difference between the new parameter and P _{SRS 0FFSET c} (m), are substituted into the formula. Preferably, when the corresponding SRS transmission period is configured for each SRS transmission power, the corresponding multiple SRS transmission periods are multiples, and the values may be reused in the configuration table for configuring the SRS period in the current system, and if multiple The transmission start subframes of the SRS transmission period are the same, and the subframe resources occupied by the plurality of SRS transmission powers are in a subset relationship.

 Preferably, when the SRS transmission resource occupation information is configured for each SRS transmission power, the SRS transmission resource occupation information includes any combination of any one or any of the following information occupied by the SRS: subframe position information, frequency domain resource location information, Cyclic shift information, port information, such as SRS transmission subframe offset, SRS frequency hopping configuration, SRS bandwidth, SRS cyclic shift, etc., for each type of information, may be configured separately for each SRS transmission power, or With the common configuration, the same configuration is used.

 Preferably, the multiple SRS transmission power configurations may have a certain priority order, and the base station and the user equipment UE agree on each SRS transmission power configuration, for example, the higher the power value, the higher the priority.

 For the case of aperiodic transmission of SRS, there are two methods for indicating SRS transmission.

 method 1

 The base station determines the configuration information of the UE for determining the at least two SRS transmission powers, and indicates the determined configuration information to the UE. The SRS transmission resource occupation information or the triggering subframe resource information corresponding to the SRS transmission power configuration is configured and indicated to the UE. So that the UE transmits the SRS with different SRS transmission powers on different resources. These indications may be simultaneous indications or separate indications.

 Preferably, the foregoing indication may be sent to the UE by using high layer signaling.

 Preferably, in the embodiment of the present invention, the configuration information used to determine the at least two SRS transmission powers includes: calculating a correlation parameter and a value thereof in a setting formula of the SRS transmission power, where different values are set for the same related parameter. Or specifically including calculating a relevant parameter in the setting formula of the SRS transmission power and its value, and newly adding a new parameter for determining a new value of the relevant parameter and a value of the new parameter, wherein the configuration information is the same Set a value for the relevant parameter.

Preferably, the relevant parameter in the setting formula for calculating the SRS transmission power includes P _{SRS 0FFSET c} (m), and in the configuration information, different values are set for P _{SRS 0FFSET c} (m); or, the configuration information includes P _{SRS 0FFSET c} (m) and representation

P _SRS ― ( ) The value of the new parameter ^ _set and ^ _set of the offset, in the configuration information for P _SRS ―. _FFSET , » set the value to one; where m=0 or m=l, m=0, P _{SRS FFSET e} (m) denotes the transmit power adjustment value of the periodic SRS, m= 1 , _{SRS 0FFSET c} (m ) indicates the transmission power adjustment value of the aperiodic SRS.

Therefore, in the embodiment of the present invention, the relevant parameters in the current calculation formula for calculating the SRS transmission power may be extended to obtain a plurality of power values, for example, P _{SRS 0FFSET c} (m) may be extended, and new parameters may be introduced for obtaining more The power values, such as the difference between the new parameter and P _{SRS 0FFSET c} (m), are substituted into the formula.

Preferably, the SRS transmission resource occupation information corresponding to each SRS transmission power configuration includes any combination of any one or any of the following information occupied by the SRS: subframe position information, frequency domain resource location information, cyclic shift information, and port information. For example, SRS transmission subframe offset, SRS frequency hopping configuration, SRS bandwidth, SRS cyclic shift and other information. For each type of information, it can be configured separately for each SRS transmission power, or a public configuration can be used. Use the same match Set.

 Preferably, the base station determines the target SRS transmission power in the at least two different SRS transmission powers, and performs triggering of the aperiodic SRS on the SRS triggering subframe resource corresponding to the target SRS transmission power; or, triggers the UE to send in the target SRS. The transmission of the aperiodic SRS is performed on the SRS transmission resource corresponding to the power.

 Preferably, the multiple SRS transmission power configurations may have a certain priority order, and the base station and the UE agree on the priority corresponding to each SRS transmission power configuration, for example, the higher the power value, the higher the priority.

 Method 2

 The base station determines configuration information of the UE for determining at least two SRS transmission powers, and indicates the determined configuration information to the UE; and indicates, by using the PDCCH signaling, configuration information of the SRS transmission power used by the UE. These indications may be simultaneous indications or separate indications

 Preferably, the determined configuration information is indicated to the UE by higher layer signaling.

 Preferably, in the embodiment of the present invention, the configuration information used to determine the at least two SRS transmission powers includes: calculating a correlation parameter and a value thereof in a setting formula of the SRS transmission power, where different values are set for the same related parameter. Or specifically including calculating a relevant parameter in the setting formula of the SRS transmission power and its value, and newly adding a new parameter for determining a new value of the relevant parameter and a value of the new parameter, wherein the configuration information is the same Set a value for the relevant parameter.

Preferably, the relevant parameter in the setting formula for calculating the SRS transmission power includes P _{SRS 0FFSET c} (m), and in the configuration information, different values are set for P _{SRS 0FFSET c} (m); or, the configuration information includes P _{SRS 0FFSET c} (m) and representation

P _SRS ― ( ) The value of the new parameter ^ _set and ^ _set of the offset, in the configuration information for P _SRS ―. _FFSET , » set the value to one; where m=0 or m=l, m=0, P _{SRS FFSET e} (m) denotes the transmit power adjustment value of the periodic SRS, m=l, P _{SRS FFSET e} ( m) indicates the transmission power adjustment value of the aperiodic SRS.

Therefore, in the embodiment of the present invention, the relevant parameters in the current calculation formula for calculating the SRS transmission power may be extended to obtain a plurality of power values, for example, P _{SRS 0FFSET c} (m) may be extended, and new parameters may be introduced for obtaining more The power values, such as the difference between the new parameter and P _{SRS 0FFSET c} (m), are substituted into the formula.

 Preferably, the configuration information of the different SRS transmission powers is different from the index, and the SRS transmission power that is used by the UE is indicated by the index corresponding to the configuration information of the SRS transmission power used by the UE (the index corresponding to the high-level configuration). Configuration information.

 Preferably, the PDCCH signaling sent by the aperiodic triggering SRS is used to indicate the configuration information of the SRS transmission power used by the UE; or the DCI (Downlink Control Information) in the PDCCH signaling that is sent by the aperiodic trigger SRS. If the signaling other than the PDCCH signaling sent by the SRS is periodically triggered, the configuration information of the SRS transmission power used by the UE is indicated.

The embodiment of the present invention further provides a method for the user equipment UE to send the SRS. As shown in FIG. 3, the method includes the following steps: Step 301: Receive configuration information that is used by the network side device to determine at least two SRS transmission powers, where At least two SRS transmission powers, which are transmission powers used for measurements for different purposes, preferably including Transmit power used by SRS for channel channel measurement, and transmit power used by SRS for downlink channel measurement according to channel dissimilarity;

 Step 302: Determine, according to the configuration information, at least two SRS transmission powers, and send, according to the indication of the network side device, different SRS transmission powers to send SRSs according to different resources.

 The method for transmitting the SRS by the UE is applicable to the CoMP system, and the network side device is specifically a base station that communicates with the UE.

 The preferred embodiments of the UE transmitting the SRS in the case of the periodic transmission transmission SRS and the aperiodic transmission SRS are respectively given below.

 For the periodic SRS, the UE determines at least two SRS transmission powers according to the configuration information indicated by the base station, and acquires a corresponding SRS transmission period that is configured by the base station for each SRS transmission power configuration, and sends a common SRS transmission period when the corresponding SRS transmission period is reached. On the resource occupation information, the SRS is transmitted by using the corresponding SRS transmission power, and the UE acquires the common SRS transmission resource in the prior art, such as the configuration to the UE, and although different power SRSs are sent by using the same transmission resource, The same position of the frame is transmitted, but since the transmission period corresponding to different SRS transmission powers is different, it is transmitted in different subframes. Preferably, if the transmission period is caused to be transmitted at the same time, the SRS is transmitted with the highest priority SRS transmission power according to the priority corresponding to the respective SRS transmission powers of the base station.

 Or, the UE acquires the corresponding SRS transmission resource occupation information that is configured by the base station for each SRS transmission power configuration, and uses the corresponding SRS transmission power to transmit the SRS, and specifically, the SRS transmission power configuration corresponding to each SRS transmission resource. The resources that will be periodically occupied, so that the UE periodically sends the SRS.

 Alternatively, the UE acquires the SRS transmission period and the SRS transmission resource occupation information that are configured by the base station for each SRS transmission power, and arrives at the corresponding transmission period and/or occupies the corresponding SRS transmission resource, and sends the SRS by using the corresponding SRS transmission power. If an SRS that transmits multiple SRS powers occurs at the same time, the SRS is transmitted according to the priority of each SRS transmission power agreed with the base station, and the SRS is transmitted with the highest priority.

 Preferably, if the configuration information includes a correlation parameter in the setting formula for calculating the SRS transmission power and a value thereof, and the same related parameter is set to different values, each of the values is substituted into the setting formula, At least two SRS transmission powers are obtained.

 If the configuration information includes a relevant parameter in the setting formula for calculating the SRS transmission power and a value thereof, and a newly added new parameter and a new parameter value for determining the new value of the relevant parameter, the configuration information is related to the same correlation. If the parameter is set to a value, the value of the relevant parameter in the configuration information and the new value of the relevant parameter determined by the new parameter are respectively substituted into the setting formula to obtain at least two SRS transmission powers.

If P _{SRS 0FFSET c} (m) is set to different values, enter the setting formula, or take a value of S _{RS 0FFSET c} (m) indicated by the base station, and P _SRS ―. _FFSET,. (m) The new value obtained by calculating the value and the new parameter are respectively substituted into the setting formula to obtain a plurality of SRS transmission powers.

Preferably, if the SRS sent by the UE sends resource occupation information, the SRS transmission resource occupation information includes the SRS. Any combination of any one or any of the following information: subframe position information, frequency domain resource location information, cyclic shift information, port information. For example, the SRS sends a subframe offset, an SRS bandwidth, an SRS frequency hopping configuration, an SRS cyclic shift, and the like. If some information is not configured, the information is configured in a common configuration (which can be allocated to the UE in advance).

 For aperiodic SRS, there are two ways for the UE to send SRS.

 method 1

 The UE determines the at least two SRS transmission powers according to the configuration information indicated by the base station, and obtains the corresponding SRS transmission resource occupation information and/or the trigger subframe resource information that is configured by the UE for each SRS transmission power, and determines the transmission corresponding to each SRS transmission power. The resource or the triggering subframe resource; for determining the triggering the subframe resource, after receiving the aperiodic SRS triggering signaling, using the SRS sending power corresponding to the triggering subframe resource where the acyclic SRS trigger signaling is sent, the SRS may be sent according to the The triggering subframe resource determines the corresponding SRS transmission resource according to the setting rule; or, after determining the SRS transmission resource, after receiving the aperiodic SRS trigger signaling, using the SRS transmission power corresponding to the transmission resource occupied by the aperiodic SRS Send SRS.

 Preferably, if there are at least two SRS transmission powers at the same time, the method further includes: selecting the SRS transmission power transmission SRS with the highest priority according to the priority corresponding to each SRS transmission power configuration agreed with the network side device.

 Preferably, if the configuration information includes a correlation parameter in the setting formula for calculating the SRS transmission power and a value thereof, and the same related parameter is set to different values, each of the values is substituted into the setting formula, At least two SRS transmission powers are obtained.

 If the configuration information includes a relevant parameter in the setting formula for calculating the SRS transmission power and a value thereof, and a newly added new parameter and a new parameter value for determining the new value of the relevant parameter, the configuration information is related to the same correlation. If the parameter is set to a value, the value of the relevant parameter in the configuration information and the new value of the relevant parameter determined by the new parameter are respectively substituted into the setting formula to obtain at least two SRS transmission powers.

For example, set the different values of A _RS OFFSET^ (^) to the setting formula, or take a value of S _{RS 0FFSET c} (m) indicated by the base station, and P _SRS ―. _FFSET,. (m) The new value obtained by calculating the value and the new parameter are respectively substituted into the setting formula to obtain a plurality of SRS transmission powers.

 Preferably, if the SRS sent by the UE sends the resource occupation information, the SRS transmission resource occupation information includes any combination of any one or any of the following information occupied by the SRS: subframe position information, frequency domain resource location information, cyclic shift information, Port information. For example, the SRS transmits a subframe offset, an SRS bandwidth, an SRS frequency hopping configuration, an SRS cyclic shift, and the like. If some information is not configured, the information is configured in a common configuration (which may be allocated to the UE in advance).

 Method 2

The UE determines the at least two SRS transmission powers according to the configuration information indicated by the base station, and determines the indicated SRS transmission power according to the configuration information of the SRS transmission power indicated by the eNB signaling by the base station; after receiving the aperiodic SRS trigger signaling, The indicated SRS transmission power is transmitted to the SRS. Preferably, if the configuration information includes a correlation parameter in the setting formula for calculating the SRS transmission power and a value thereof, and the same related parameter is set to different values, each of the values is substituted into the setting formula, At least two SRS transmission powers are obtained.

 If the configuration information includes a relevant parameter in the setting formula for calculating the SRS transmission power and a value thereof, and a newly added new parameter and a new parameter value for determining the new value of the relevant parameter, the configuration information is related to the same correlation. If the parameter is set to a value, the value of the relevant parameter in the configuration information and the new value of the relevant parameter determined by the new parameter are respectively substituted into the setting formula to obtain at least two SRS transmission powers.

For example, set the different values of A _RS OFFSET^ (^) to the setting formula, or take a value of S _{RS 0FFSET c} (m) indicated by the base station, and P _SRS ― _FFSET . (m) The new value obtained by calculating the value and the new parameter are respectively substituted into the setting formula to obtain a plurality of SRS transmission powers.

 In this embodiment, the base station is not required to configure the SRS transmission resource information for the UE, and the SRSs of different transmission powers are sent by using a common transmission resource. The transmission opportunity is triggered by the base station, and the base station informs the UE which transmit power to use for transmission.

 Preferably, the configuration information is configured by the high-layer signaling, and the configuration information of the different SRS transmission powers is different from the index, and the SRS transmission power indicated by the base station is determined by configuring the corresponding index of the SRS transmission power indicated by the base station. The configuration information is used to determine which SRS transmission power to transmit.

 Preferably, the PDCCH signaling that is sent by the aperiodic triggering SRS is received, and the configuration information of the SRS transmission power that the base station indicates to the UE is used, or the downlink control information DCI in which the PDCCH signaling that is sent by the aperiodic triggering SRS is located, unless the period And triggering other signalings other than the PDCCH signaling sent by the SRS, and acquiring configuration information of the SRS transmission power that the base station indicates for the UE to use; or the base station and the UE pre-arranging the configuration information of the SRS transmission power corresponding to each DCI format, and triggering the non-trigger The DCI format used by the periodic SRS indicates that the UE uses the configuration information of the SRS transmission power corresponding to the DCI format; or indicates the configuration of the SRS transmission power used by the UE by triggering the type of the shared channel transmission scheduled by the DCI format of the aperiodic SRS. information.

 If the DCI format that triggers the aperiodic SRS is scheduled for uplink shared channel transmission, the SRS is used to transmit power configuration information 1, such as configuration information corresponding to the transmit power used by the SRS for uplink channel measurement; if the aperiodic SRS is triggered The DCI format schedules downlink shared channel transmission, and then uses SRS to transmit power configuration information 2, such as configuration information corresponding to the transmission power used by the SRS for downlink channel measurement according to channel dissimilarity.

 The method for indicating the transmission of the SRS by the network side device and the method for the UE to send the SRS are given below.

 Example 1

1) The base station configures the SRS power offset value P _{SRS FFSET e} (0) and another new parameter-offset value P for the UE through higher layer signaling. _{The ffset} UE is based on P _SRS ― (0) and /^―. ^ _Τ . (0) + Ρ According to the SRS power calculation formula, two periodic SRS transmission powers Ρ0 and P1 are obtained, respectively for uplink channel measurement and downlink channel measurement.

2) The base station configures one transmission period for each of the two transmission powers Ρ0 and P1, and agrees to determine the priority according to the size of the power value. For example, the transmission period corresponding to Ρ0 is 5ms, and the transmission period corresponding to PI is 20ms. PI is greater than P0. This PI has a higher priority.

 3) The base station configures SRS transmission resource occupation information for the UE, such as SRS bandwidth, SRS subframe offset, SRS frequency hopping configuration, SRS port number, and SRS cyclic shift. These parameters are configured for both powers P0 and P1. identical.

 4) The UE sends the first periodic SRS with a transmission period of 5 ms and a transmission power of P0 according to the configuration of the base station,

The second period SRS is transmitted with a transmission period of 20 ms and a transmission power of P1. The specific SRS transmission resource is obtained by sending the resource occupation information by the SRS in step 3). Because the starting positions of the two periodic SRSs are the same, the subframe resources of the second periodic SRS are a subset of the first periodic SRS subframe resources, and the subframe resources that overlap according to the priorities should be sent according to P1. SRS. Therefore, the terminal actually transmits the periodic SRS in a period of 5 ms, in which the power is transmitted according to the power of P1 every 20 ms period, and the periodic SRS of other times is transmitted with the power of P0.

 Example 2

1) The base station configures the SRS power offset value P _SRS for the UE through high layer signaling. _{FFSET e} (l) and another new parameter-offset value, the UE is based on P _SRS ―. . (1) and /^―. _FFSET . (l) _{+ J} P. _Ffset obtains two aperiodic SRS transmission powers P0 and P1 according to the SRS power calculation formula for uplink channel measurement and downlink channel measurement, respectively. The base station and the UE agree on the priority of the two transmit powers P0 and P1, that is, the higher the priority of the transmit power.

 2) The base station configures the SRS transmission resource information corresponding to each SRS transmission power of the UE, and the subframe resource configuration period corresponding to different SRS powers is different. For example, the subframe resource configuration period corresponding to P0 is 10 ms (that is, one subframe resource can be used for the transmission of such aperiodic SRS every 10 ms), and the configuration period of the subframe resource corresponding to P1 is 20 ms.

 3) The base station configures other SRS configuration parameters for the UE, mainly configuring SRS transmission resource occupation information, such as SRS bandwidth, SRS resource starting subframe, SRS frequency hopping configuration, SRS port number, and SRS cyclic shift, etc. Both power configurations are the same.

 4) After receiving the aperiodic SRS trigger signaling included in a certain DCI, the UE determines the used SRS transmission resource according to the aperiodic SRS trigger signaling according to the configuration of the base station, if the triggered aperiodic SRS is in the SRS corresponding to the SRS When transmitting on a subframe resource and not transmitting on the SRS transmission subframe resource corresponding to P1, transmitting the aperiodic SRS on the corresponding resource with the transmission power of P0; if the triggered aperiodic SRS is on the SRS transmission subframe resource corresponding to P1 During transmission, the aperiodic SRS is transmitted on the corresponding resource with the transmit power of P1. If the SRS transmission subframe resources corresponding to P1 and P0 are coincident, the transmission power of P1 with a higher priority is used to transmit the aperiodic SRS on the corresponding resource.

 Example 3

1) The base station configures the SRS power offset value P _SRS for the UE through high layer signaling. _{FFSET e} (l) and another new parameter - offset value P. , UE based on P _SRS ―. . (1) and /^―. _FFSET . (l) _{+ J} P. According to the SRS power calculation formula, _ffset obtains two aperiodic SRS transmission powers P0 and P1 for uplink channel measurement and downlink channel measurement, respectively.

2) The base station triggers the aperiodic SRS transmission by using thousands of bits of a DCI in the PDCCH, and uses these bits to simultaneously indicate an index of the SRS transmission power configuration used by the UE, the index indicating the target SRS transmission power configuration. The location in the two SRS transmit power configurations indicated at the upper layer.

 3) The base station indicates other SRS parameter configurations of the UE, mainly SRS transmission resource occupation information, such as SRS bandwidth, SRS resource start subframe, SRS frequency hopping configuration, SRS port number, and SRS cyclic shift, etc. The power configurations are the same.

 4) After receiving the aperiodic SRS trigger included in the DCI, the UE finds the transmit power corresponding to the index from the two SRS transmit powers configured by the high layer signaling according to the index of the SRS transmit power included in the trigger signaling. The transmission power of the aperiodic SRS is performed, and the transmission of the aperiodic SRS is performed according to the SRS parameter configuration indicated by the base station. For example, if the transmit power index included in the trigger information is 1, it indicates that P1 is used as the transmit power of the aperiodic SRS.

 Example 4

1) The base station configures the SRS power offset value P _{SRS 0FFSET c} (l) and another new parameter-offset value for the UE through higher layer signaling.

P. _Ffset , UE based on P _SRS ―. . (1) and /^―. _FFSET . (l) _{+ J} P. _Ffset obtains two aperiodic SRS transmission powers P0 and P1 according to the SRS power calculation formula for uplink channel measurement and downlink channel measurement, respectively. The base station and the UE agree on the priority of the two transmit powers P0 and P1, that is, the higher the priority of the transmit power.

 2) The base station is configured to trigger the subframe information corresponding to each SRS transmission power of the UE, and the trigger subframe configuration corresponding to different SRS powers is different. For example, the trigger subframe information corresponding to P0 is an odd subframe, and the trigger subframe information corresponding to P1 is an even subframe.

 3) The base station configures other SRS configuration parameters for the UE, mainly configuring SRS transmission resource occupation information, such as SRS bandwidth, SRS resource start subframe, SRS frequency hopping configuration, SRS port number, and SRS cyclic shift, etc. Both power configurations are the same.

 4) After receiving the aperiodic SRS triggering signaling included in a certain DCI, the UE determines, if the aperiodic SRS trigger signaling is on the triggering subframe resource corresponding to P0, not the triggering subframe corresponding to P1. On the resource, the aperiodic SRS is transmitted on the corresponding resource with the transmit power of P0; if the non-periodic SRS trigger signaling is on the trigger subframe resource corresponding to P1, the aperiodic SRS is transmitted on the corresponding resource with the transmit power of P1.

 Based on the same inventive concept, a network side device and a user equipment UE are further provided in the embodiment of the present invention. The principle of solving the problem is similar to a method for indicating SRS transmission and a method for transmitting SRS. For the implementation of the method, refer to the implementation of the method, and the repetition will not be repeated.

 As shown in FIG. 4, the network side device provided by the embodiment of the present invention includes:

 The power configuration unit 401 is configured to determine configuration information of the UE for determining at least two SRS transmission powers, where the at least two SRS transmission powers are transmission powers used for measurement for different purposes;

 The power configuration indication unit 402 is configured to indicate the determined configuration information to the UE, so that the UE determines at least two SRS transmission powers according to the indication, and instructs the UE to send different SRS transmission powers on different resources. SRS.

An embodiment of the present invention further provides a user equipment UE, as shown in FIG. 5, including: The power configuration obtaining unit 501 is configured to receive, by the network side device, configuration information used to determine at least two SRS transmission powers;

 The SRS sending unit 502 is configured to determine at least two SRS transmission powers according to the configuration information, and send the SRS by using different SRS transmission powers on different resources according to the indication of the network side device.

 Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the present invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage interfaces (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

 The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each process and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

 The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

 These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

 Although the preferred embodiment of the invention has been described, it will be apparent to those of ordinary skill in the art that <RTIgt; Therefore, the appended claims are intended to be construed as including the preferred embodiments and the modifications

 It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

Rights request A method for the network side device to indicate the sounding of the sounding reference signal SRS, the method comprising: determining configuration information of the user equipment UE for determining at least two SRS transmission powers, where the at least two SRS transmission powers are used Transmit power used for measurements of different purposes;  Determining the determined configuration information to the UE, so that the UE determines at least two SRSs according to the configuration information. 2. The method according to claim 1, wherein the at least two SRS transmission powers include a transmission power used by an SRS for uplink channel measurement, and an SRS used for downlink channel measurement according to channel dissimilarity. Transmit power.  3. The method according to claim 1, wherein the determining is used to determine at least two by higher layer signaling The configuration information of the SRS transmission power is indicated to the UE.  The method according to claim 1, wherein the configuration information for determining the at least two SRS transmission powers specifically includes calculating related parameters and their values in a setting formula of SRS transmission power, where Set different values for the same related parameter; or  The configuration information used to determine the at least two SRS transmission powers includes: calculating related parameters and their values in a setting formula of SRS transmission power, and newly adding new parameters for determining new values of related parameters and The new parameter takes a value. In the configuration information, the same value is set for the same related parameter. 5. The method according to claim 4, wherein the correlation parameter in the setting formula for calculating the SRS transmission power comprises a transmission power adjustment value P _{SRS 0FFSET c} (m), and in the configuration information, the / ³ _SRS . _FFSET . (m) set different values; or The configuration information includes P _SRS - _FFSET . (W) and the values of the new parameters ^et and ^et indicating the P _SRS ― ( ) offset, wherein the value of p _SRS ― _FFSET , o) in the configuration information is a value.  The method according to claim 1, wherein if the UE is configured to periodically send the SRS, the method further includes:  The SRS transmission period and/or the SRS transmission resource occupation information corresponding to each SRS transmission power configuration, and indicated to the UE;  If the UE is configured to send the SRS acyclically, it further includes:  The SRS transmission resource occupation information or the triggering subframe resource information corresponding to each SRS transmission power configuration is indicated and indicated to the UE; or the resource occupation information or the trigger subframe information is configured for each SRS to configure configuration information of the corresponding SRS transmission power. The method according to claim 6, wherein the SRS transmission resource occupation information comprises any combination of any one or any of the following: Subframe position information, frequency domain resource location information, cyclic shift information, port information.  The method according to claim 6, wherein, if the UE is configured to send the SRS aperiodically, the method further includes:  Determining the target SRS transmission power, and triggering the aperiodic SRS on the trigger subframe resource corresponding to the target SRS transmission power; or 9. The method of claim 1, further comprising:  The priority corresponding to each SRS transmission power is agreed with the user equipment UE.  The method according to claim 1, wherein, if the UE is configured to send the SRS aperiodically, the method further includes:  The configuration information of the SRS transmission power used by the UE is indicated by the PDCCH signaling.  The method according to claim 10, wherein the configuration information of the different SRS transmission powers is different from the index, and the index corresponding to the configuration information of the SRS transmission power used by the UE is specifically indicated, indicating that the UE is used. Configuration information of SRS transmission power.  12. The method of claim 10, further comprising:  Determining, by using a physical downlink control channel PDCCH signaling sent by the aperiodic SRS, configuration information of the SRS transmission power used by the UE; or  In the downlink control information DCI in which the PDCCH signaling sent by the aperiodic SRS is triggered, the configuration information indicating the SRS transmission power used by the UE is indicated unless the signaling other than the PDCCH signaling sent by the SRS is triggered periodically; or  The base station and the UE pre-arrange the configuration information of the SRS transmission power corresponding to each DCI format, and instruct the UE to use the configuration information of the SRS transmission power corresponding to the DCI format by triggering the DCI format used by the non-periodic SRS; or  The configuration information of the SRS transmission power used by the UE is indicated by the type of the shared channel transmission scheduled by the DCI format that triggers the aperiodic SRS.  A method for a user equipment to send an SRS by a UE, which is characterized by comprising:  Receiving, by the network side device, configuration information for determining at least two SRS transmission powers;  And determining, according to the configuration information, the at least two SRS transmission powers, and transmitting the SRS by using different SRS transmission powers on different resources according to the indication of the network side device.  The method according to claim 13, wherein the configuration information for determining the at least two SRS transmission powers indicated by the network side device is received by the high layer signaling. The method of claim 13, wherein determining the at least two SRS transmission powers according to the configuration information comprises: If the configuration information includes the relevant parameter in the setting formula for calculating the SRS transmission power and the value thereof, and the same related parameter is set to different values, at least two are obtained by substituting each value into the setting formula. SRS transmission power;  If the configuration information includes a relevant parameter in the setting formula for calculating the SRS transmission power and a value thereof, and a newly added new parameter and a new parameter value for determining the new value of the relevant parameter, the configuration information is related to the same correlation. If the parameter is set to the same value, the value of the relevant parameter in the configuration information and the new value of the relevant parameter determined by the new parameter are respectively substituted into the setting formula to obtain at least two SRS transmission powers.  The method according to claim 13, wherein, if the UE is configured to periodically send the SRS, the method further includes:  Obtaining a corresponding SRS transmission period for each SRS transmission power configuration indicated by the network side device, and when the corresponding SRS transmission period is reached, transmitting the SRS with the corresponding SRS transmission power on the common SRS transmission resource occupation information; or  Obtaining, by the network side device, the corresponding SRS transmission resource occupation information configured for each SRS transmission power, and when the corresponding SRS transmission resource is occupied, sending the SRS by using the corresponding SRS transmission power; or  Obtaining an SRS transmission period and an SRS transmission resource occupation information that are configured by the network side device for each SRS transmission power, and when the corresponding transmission period and/or the corresponding SRS transmission resource are occupied, the SRS is sent with the corresponding SRS transmission power;  If the UE is configured to send the SRS acyclically, it further includes:  Obtaining, by the network side device, the corresponding SRS transmission resource occupation information or the triggering subframe resource information configured for each SRS transmission power, and determining the transmission resource or the triggering subframe resource corresponding to each SRS transmission power; or acquiring the network side device indication Determining a corresponding SRS transmission power configuration configured by using the resource occupation information or the triggering subframe resource information for each SRS, and determining the SRS transmission power corresponding to each of the transmission resources or the triggering subframe resources;  After receiving the aperiodic SRS triggering signaling, the SRS is sent by using the SRS sending power corresponding to the triggering subframe resource where the acyclic SRS trigger signaling is located; or  After receiving the aperiodic SRS trigger signaling, the SRS is sent by using the SRS transmission power corresponding to the transmission resource occupied by the aperiodic SRS.  The method according to claim 16, wherein the acquired SRS transmission resource occupation information comprises any combination of any one or any of the following:  Subframe position information, frequency domain resource location information, cyclic shift information, port information.  The method according to claim 16, wherein if there are at least two SRS transmission powers on the same resource, the method further includes: According to the priority corresponding to each SRS transmission power configuration agreed by the network side device, the SRS transmission power with the highest priority is selected to transmit the SRS. The method according to claim 13, wherein, if the UE is configured to send the SRS aperiodically, the method further includes:  Determining the indicated SRS transmission power according to configuration information of the used SRS transmission power indicated by the PDCCH signaling by the network side device;  After receiving the aperiodic SRS trigger signaling, the SRS is transmitted with the indicated SRS transmission power.  The method according to claim 19, wherein the configuration information of the different SRS transmission powers is different from the index, and the network side device indication is determined by the index corresponding to the configuration information of the SRS transmission power indicated by the network side device. Configuration information of the SRS transmission power.  21. The method of claim 19, wherein  Obtaining, by using the PDCCH signaling that is sent by the aperiodic triggering SRS, the configuration information of the SRS sending power used by the network side device to indicate the UE; or  In the downlink control information DCI in which the PDCCH signaling that is sent by the aperiodic triggering SRS is located, the configuration information indicating the SRS transmission power used by the network side device is obtained by the network side device, unless the signaling other than the PDCCH signaling that is sent by the SRS is triggered periodically; or ,  The UE and the base station pre-arrange the configuration information of the SRS transmission power corresponding to each DCI format, and obtain the configuration information of the SRS transmission power used by the network side device to indicate the UE's use of the SRS transmission power by triggering the DCI format used by the non-periodic SRS; or  The configuration information of the SRS transmission power used by the UE on the network side device is obtained by triggering the type of the shared channel transmission scheduled by the DCI format of the aperiodic SRS.  A network side device, comprising: the at least two SRS transmission powers are transmission powers used for measurement for different purposes;  a power configuration indication unit, configured to indicate the determined configuration information to the UE, to enable the UE to determine at least two SRS transmission powers according to the configuration information, and instruct the UE to use different SRS transmission powers on different resources. Send SRS.  The device according to claim 22, wherein the power configuration indication unit notifies the UE of the configuration information for determining the at least two SRS transmission powers by using a high layer signaling.  The device according to claim 22, wherein the configuration information used by the configuration determining unit to determine the at least two SRS transmission powers specifically includes calculating relevant parameters in a setting formula of SRS transmission power and Its value, where different values are set for the same related parameter; or  Specifically, the method includes: calculating a related parameter in the setting formula of the SRS sending power and a value thereof, and newly adding a new parameter and a new parameter value for determining a new value of the related parameter, where the same related parameter is used in the configuration information. Set a value. The device of claim 22, further comprising: a first resource configuration unit, configured to: when the UE is configured to periodically send the SRS, configure the SRS transmission period and/or the SRS transmission resource occupation information corresponding to each SRS transmission power, and indicate the information to the UE;  a second resource configuration unit, configured to: when the UE is configured to send the SRS aperiodically, configure the SRS transmission resource occupation information or the triggering subframe resource information corresponding to the SRS transmission power, and indicate the information to the UE; or send the resource for each SRS. The occupation information or the trigger subframe information configures configuration information of the corresponding SRS transmission power.  The device according to claim 25, wherein the SRS transmission resource occupation information configured by the first resource configuration unit or the second resource configuration unit comprises any combination of any one or any of the following: subframe position information, Frequency domain resource location information, cyclic shift information, port information.  The device of claim 25, further comprising:  The aperiodic triggering unit is configured to: when the UE is configured to send the SRS aperiodically, determine the target SRS sending power, perform the triggering of the aperiodic SRS on the triggering subframe resource corresponding to the target SRS sending power, or trigger the UE to send in the target SRS. The transmission of the aperiodic SRS is performed on the SRS transmission resource corresponding to the power.  The device of claim 22, further comprising:  The priority agreement unit agrees with the user equipment UE on the priority corresponding to each SRS transmission power.  The device of claim 22, further comprising:  The power indication unit is configured to, when the UE is configured to send the SRS aperiodically, use the PDCCH signaling to indicate configuration information of the SRS transmission power used by the UE.  The device according to claim 29, wherein the configuration information of the different SRS transmission powers corresponds to different indexes, and the power indication unit is used, specifically by using an index corresponding to the configuration information of the SRS transmission power used by the UE. The configuration information indicating the SRS transmission power used by the UE.  The device according to claim 29, wherein the power indication unit is used to specifically indicate the configuration information of the SRS transmission power used by the UE by using the physical downlink control channel PDCCH signaling sent by the aperiodic SRS; or In the downlink control information DCI in which the PDCCH signaling sent by the aperiodic SRS is triggered, the configuration information indicating the SRS transmission power used by the UE is not included in the signaling other than the PDCCH signaling periodically triggered by the SRS; or the base station and the UE Presetting the configuration information of the SRS transmission power corresponding to each DCI format, and instructing the UE to use the configuration information of the SRS transmission power corresponding to the DCI format by triggering the DCI format used for the aperiodic SRS; or by triggering the DCI format of the aperiodic SRS The type of the scheduled shared channel transmission, indicating the configuration information of the SRS transmission power used by the UE.  32. A user equipment UE, which is characterized by comprising:  a power configuration acquiring unit, configured to receive, by the network side device, configuration information for determining at least two SRS transmission powers; The SRS sending unit is configured to determine at least two SRS transmission powers according to the configuration information, and send the SRS by using different SRS transmission powers on different resources according to the indication of the network side device. The UE according to claim 32, wherein the power configuration acquisition unit specifically receives the configuration information for determining the at least two SRS transmission powers indicated by the network side device by using the high layer signaling.  The UE according to claim 32, wherein the SRS sending unit determines the at least two SRS transmission powers according to the configuration information, which specifically includes:  If the configuration information includes the relevant parameter in the setting formula for calculating the SRS transmission power and the value thereof, and the same related parameter is set to different values, at least two are obtained by substituting each value into the setting formula. SRS transmission power;  If the configuration information includes a relevant parameter in the setting formula for calculating the SRS transmission power and a value thereof, and a newly added new parameter and a new parameter value for determining the new value of the relevant parameter, the configuration information is related to the same correlation. If the parameter is set to a value, the value of the relevant parameter in the configuration information and the new value of the relevant parameter determined by the new parameter are respectively substituted into the setting formula to obtain at least two SRS transmission powers.  35. The UE of claim 32, wherein:  The SRS sending unit is configured to: when the UE is configured to periodically send the SRS, obtain a corresponding SRS sending period that is configured by the network side device for each SRS sending power configuration, and send the resource in the public SRS when the corresponding SRS sending period is reached. On the occupancy information, send the SRS with the corresponding SRS transmission power; or  Obtaining, by the network side device, the corresponding SRS transmission resource occupation information configured for each SRS transmission power, and when the corresponding SRS transmission resource is occupied, sending the SRS by using the corresponding SRS transmission power; or  Obtaining an SRS transmission period and an SRS transmission resource occupation information that are specified by the network side device for each SRS transmission power configuration, and when the corresponding transmission period is reached and/or the corresponding SRS transmission resource is occupied, the SRS is sent by using the corresponding SRS transmission power;  The SRS sending unit is configured to: when the UE is configured to send the SRS aperiodically, obtain the corresponding SRS sending resource occupation information or the triggering subframe resource information that is configured by the network side device, and determine the SRS sending power. Corresponding transmission resource or trigger subframe resource; or  Obtaining a corresponding SRS transmission power configuration that is configured by the network side device to send the resource occupation information or the triggering subframe resource information for each SRS, and determine the SRS transmission power corresponding to each of the sending resources or the triggering subframe resources;  After receiving the aperiodic SRS triggering signaling, the aperiodic SRS is sent by using the SRS sending power corresponding to the triggering subframe resource where the acyclic SRS trigger signaling is located; or  After receiving the aperiodic SRS trigger signaling, the SRS is sent by using the SRS transmission power corresponding to the transmission resource occupied by the aperiodic SRS.  The UE according to claim 35, wherein the SRS transmission resource occupation information acquired by the SRS transmission unit includes any combination of any one or any of the following:  Subframe position information, frequency domain resource location information, cyclic shift information, port information. The UE according to claim 32, wherein the SRS sending unit is specifically configured to be on the same resource When there are at least two SRS transmission powers, the SRS transmission power transmission SRS is selected according to the priority corresponding to each SRS transmission power configuration agreed with the network side device.  The UE according to claim 32, wherein the SRS transmitting unit, when the UE is configured to send the SRS aperiodically, according to configuration information of the used SRS transmission power indicated by the network side device by using the PDCCH signaling Determining the indicated SRS transmission power; after receiving the aperiodic SRS trigger signaling, transmitting the SRS with the indicated SRS transmission power.  The UE according to claim 38, wherein the configuration information of the different SRS transmission powers corresponds to different indexes, and the SRS sending unit determines the network by using an index corresponding to the configuration information of the SRS transmission power indicated by the network side device. Configuration information of the SRS transmission power indicated by the side device.  40. The UE according to claim 38, wherein the SRS sending unit specifically receives the aperiodic trigger The PDCCH signaling sent by the SRS is used to obtain configuration information of the SRS transmission power used by the network side device to indicate the UE; or  In the downlink control information DCI in which the PDCCH signaling that is sent by the aperiodic triggering SRS is located, the configuration information indicating the SRS transmission power used by the network side device is obtained by the network side device, unless the signaling other than the PDCCH signaling that is sent by the SRS is triggered periodically; or ,  And the base station pre-arranging the configuration information of the SRS transmission power corresponding to each DCI format, and acquiring, by using the DCI format used by the non-periodic SRS, the configuration information of the SRS transmission power used by the network side device to indicate the UE; or  The configuration information of the SRS transmission power used by the UE on the network side device is obtained by triggering the type of the shared channel transmission scheduled by the DCI format of the aperiodic SRS.