WO2019000321A1 - 用于传输信号的方法、终端设备和网络设备 - Google Patents

用于传输信号的方法、终端设备和网络设备 Download PDF

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Publication number
WO2019000321A1
WO2019000321A1 PCT/CN2017/090809 CN2017090809W WO2019000321A1 WO 2019000321 A1 WO2019000321 A1 WO 2019000321A1 CN 2017090809 W CN2017090809 W CN 2017090809W WO 2019000321 A1 WO2019000321 A1 WO 2019000321A1
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WIPO (PCT)
Prior art keywords
srs resource
uplink signal
terminal device
target uplink
information
Prior art date
Application number
PCT/CN2017/090809
Other languages
English (en)
French (fr)
Inventor
陈文洪
Original Assignee
Oppo广东移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to KR1020197036848A priority Critical patent/KR102317121B1/ko
Priority to CN201780092331.4A priority patent/CN110786072A/zh
Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to US16/614,998 priority patent/US11218974B2/en
Priority to JP2019568313A priority patent/JP2020529143A/ja
Priority to EP17916124.5A priority patent/EP3624535B1/en
Priority to CA3064824A priority patent/CA3064824A1/en
Priority to BR112019027940-7A priority patent/BR112019027940A2/pt
Priority to CN202010081160.9A priority patent/CN111294912B/zh
Priority to AU2017421722A priority patent/AU2017421722A1/en
Priority to MX2019015586A priority patent/MX2019015586A/es
Priority to SG11201911140VA priority patent/SG11201911140VA/en
Priority to RU2019139069A priority patent/RU2735333C1/ru
Priority to PCT/CN2017/090809 priority patent/WO2019000321A1/zh
Priority to TW107120598A priority patent/TWI754075B/zh
Publication of WO2019000321A1 publication Critical patent/WO2019000321A1/zh
Priority to PH12019502649A priority patent/PH12019502649A1/en
Priority to ZA2019/07826A priority patent/ZA201907826B/en
Priority to IL270994A priority patent/IL270994A/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/08—Closed loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the embodiments of the present application relate to the field of communications, and, more particularly, to a method, a terminal device, and a network device for transmitting signals.
  • the power control of the terminal is of great significance in terms of power saving and suppression of inter-cell interference. Therefore, how to improve the accuracy of the uplink power control is a problem that has been studied.
  • the embodiments of the present application provide a method, a terminal device, and a network device for transmitting signals, which are beneficial to improving the accuracy of uplink power control, thereby improving system transmission performance.
  • the first aspect provides a method for transmitting a signal, where the method includes: determining, by the terminal device, sounding reference signal SRS resource indication information corresponding to a target uplink signal; and determining, by the terminal device, the target uplink according to the SRS resource indication information a first power control parameter of the signal; the terminal device determines a transmit power of the target uplink signal according to the first power control parameter; and the terminal device sends the target uplink signal to the network device according to the transmit power.
  • the SRS resource indication information may be indication information for indicating an SRS resource.
  • the network device can be configured in advance or one or more SRS resources are agreed by the protocol.
  • the network device can also configure different sets of independent power control parameters for different SRS resources in advance.
  • Determining the transmit power of the target uplink signal by referring to the power control parameter corresponding to the SRS resource indication information sent by the network device is beneficial to improving the accuracy of the uplink power control, thereby improving the performance of the system transmission.
  • the uplink signal of the target may be a physical uplink shared channel (PUSCH), a physical uplink control channel (PUCCH), a physical random access channel (PRACH), and an SRS.
  • the signal may also be a Phase Tracking Reference Signal (PTRS), or may be a Demodulation Reference Signal (DMRS) or the like.
  • the sounding reference signal SRS resource indication information corresponding to the target uplink signal may refer to a network device and the terminal device pre-approved or configured by the network device to indicate that the indication manner belongs to a specific uplink signal.
  • the first power control parameter may be any one of a calculation formula of the transmission power or any combination of a plurality of parameters.
  • SRSs sent on different SRS resources may use different beams. That is, there is a correspondence between at least two of the beam, the SRS resource, the SRS resource indication information, and the power control parameter.
  • the power control parameter corresponding to the SRS resource indicated by the network device it is possible to determine a preferred transmit power for the target uplink signal, and thereby improve the system transmission, if the same beam is used to transmit the SRS on the SRS resource indicated by the network device. performance.
  • the network device may also explicitly indicate a reference power control parameter corresponding to the target uplink signal, where the reference power control parameter is a power control parameter used to send the SRS on a certain SRS resource.
  • the method further includes: receiving, by the terminal device, first information sent by the network device, where the first information carries the SRS resource indication information; and the terminal device determines a sounding reference corresponding to the target uplink signal
  • the signal SRS resource indication information includes: the terminal device determines the SRS resource indication information from the first information.
  • the first information may be high-level signaling such as radio resource control (RRC) signaling, media access control (MAC) signaling, DCI signaling, system information, and broadcast. Wait.
  • RRC radio resource control
  • MAC media access control
  • the first information is downlink control information DCI used for scheduling the PUSCH; or if the target uplink signal is a physical random access channel (PRACH)
  • the first information is system information or high layer signaling; or if the target uplink signal is a sounding reference signal SRS, the first information is high layer signaling or downlink control information DCI.
  • the terminal device may carry the SRS resource indication information corresponding to the periodic SRS in the RRC signaling configured with the SRS type; if the target uplink signal is an aperiodic SRS, The terminal device may obtain the SRS resource indication information corresponding to the aperiodic SRS by using the DCI that triggers the aperiodic SRS transmission.
  • the first information is a high-level signaling for indicating the PUCCH resource; or if the target uplink signal is a physical uplink control channel PUCCH, the first information is recently received by the terminal device for scheduling a physical uplink shared channel.
  • the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, including: the terminal device according to the format of the PUCCH, SRS resource indication information corresponding to the format of the PUCCH is determined.
  • the target uplink signal is a physical uplink control channel (PUCCH)
  • the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, including: the terminal device according to the format of the PUCCH, SRS resource indication information corresponding to the format of the PUCCH is determined.
  • PUCCH physical uplink control channel
  • the network device may configure different SPU resource indication information corresponding to different PUCCH formats in advance.
  • the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, including: the terminal device will correspond to the first PUSCH
  • the SRS resource indication information is determined as the SRS resource indication information corresponding to the PTRS, and the demodulation reference signal DMRS for demodulating the first PUSCH has an association relationship with the PTRS.
  • the terminal device determines, according to the SRS resource indication information, a first power control parameter of the target uplink signal, where the terminal device includes power control corresponding to the SRS resource indicated by the SRS resource indication information.
  • the parameter is determined as a first power control parameter of the target uplink signal.
  • the terminal device may determine, by adding a certain offset, a power control parameter corresponding to the SRS resource indicated by the network device as the first power control parameter of the target uplink signal.
  • the first power control parameter includes at least one of the following information: a path loss value used to calculate the transmit power, and a path loss value used to calculate the transmit power.
  • Downlink signal information open loop power control parameters, and closed loop power control parameters.
  • the power control parameter may be the target power Po, the path loss factor a, or the closed loop power control factor f(i).
  • the method before the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, the method further includes: the terminal device receiving the network The configuration information sent by the device, where the configuration information is used to indicate a correspondence between the at least one SRS resource and the at least one power control parameter, where the at least one SRS resource includes the SRS resource indicated by the SRS resource indication information.
  • the network device may configure each SRS resource and the corresponding SRS resource indication information in advance and notify the terminal device of the corresponding relationship or may also agree the corresponding relationship by the protocol.
  • the method before the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, the method further includes: determining, by the terminal device, the power control parameter preconfigured by the network device The transmit power of the target uplink signal.
  • the terminal device determines, according to the SRS resource indication information, a first power control parameter of the target uplink signal, where the terminal device uses the SRS resource indication information and an uplink used by the target uplink signal.
  • the multiple access mode determines a first power control parameter of the target uplink signal.
  • the terminal device determines, according to the SRS resource indication information and the uplink multiple access mode used by the target uplink signal, the first power control parameter of the target uplink signal, including: the terminal device according to the SRS The power control parameter corresponding to the SRS resource indicated by the resource indication information and the uplink multiple access mode used by the target uplink signal determine a first power control parameter of the target uplink signal.
  • the uplink multiple access mode used by the target uplink signal is discrete Fourier transform-extended-orthogonal frequency division multiplexing DFT-S-OFDM, or cyclic prefix-orthogonal frequency division multiplexing CP-OFDM.
  • the terminal device determines a power control parameter corresponding to the SRS resource indicated by the SRS resource indication information as a first power control parameter of the target uplink signal; or if the uplink multiple access mode used by the target uplink signal is a cyclic prefix-orthogonal frequency
  • the terminal device determines the power control parameter corresponding to the SRS resource indicated by the SRS resource indication information plus a preset offset as the target uplink signal.
  • the first power control parameter is Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing
  • the terminal device determines, according to the first power control parameter, a transmit power of the target uplink signal, where the terminal device uses the first power control parameter and the network device as the target uplink signal. Pre-configured second power control parameters to determine the target uplink The transmit power of the signal.
  • a second aspect provides a method for transmitting a signal, where the method includes: the network device sends, to the terminal device, SRS resource indication information corresponding to the target uplink signal, where the SRS resource indication information is used by the terminal device to determine the target uplink. a first power control parameter of the signal; the network device receives the target uplink signal sent by the terminal device based on the first power control parameter.
  • the target uplink signal is a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical random access channel PRACH, a phase tracking reference signal PTRS, or a sounding reference signal SRS.
  • the SRS resource indication information is carried in the downlink control information DCI for scheduling the PUSCH; or if the target uplink signal is physically randomized.
  • the SRS resource indication information is carried in the system information or the high layer signaling; or if the target uplink signal is the sounding reference signal SRS, the SRS resource indication information is carried in the high layer signaling or the downlink control information DCI.
  • the SRS resource indication information is carried in a high layer signaling for indicating the PUCCH resource; or if the target uplink signal is a physical uplink control a channel PUCCH, where the SRS resource indication information is carried in the downlink control information DCI that is recently received by the terminal device for scheduling the physical uplink shared channel (PUSCH); or if the target uplink signal is a physical uplink control channel (PUCCH), the SRS resource indication information.
  • PUCCH physical uplink control channel
  • the downlink control information DCI carrying the transmission power control TPC command, the TPC command is used to indicate the closed loop power adjustment value of the PUCCH; or if the target uplink signal is the physical uplink control channel PUCCH, the SRS resource indication information is carried in the wireless Resource Control RRC Signaling or Medium Access Control MAC Signaling.
  • the first power control parameter includes at least one of the following information: a path loss value used to calculate the transmit power, and a path loss value used to calculate the transmit power.
  • Downlink signal information open loop power control parameters, and closed loop power control parameters.
  • the method further includes: the network device sending, to the terminal device, configuration information, where the configuration information is used to indicate a correspondence between at least one sounding reference signal SRS resource and at least one power control parameter, where the at least one One SRS resource includes an SRS resource indicated by the SRS resource indication information.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device includes Aspect or unit of method in any possible implementation of the first aspect.
  • a network device for performing the method of any of the foregoing second aspect or any of the possible implementations of the second aspect.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • a network device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • a computer storage medium for storing the method in any of the above possible implementations of the first aspect or the first aspect, or any possible implementation of the second or second aspect
  • Computer software instructions for use in the method of the present invention including programs designed to perform the various aspects described above.
  • a computer program product comprising instructions, when executed on a computer, causes the computer to perform the method of any of the first aspect or the optional implementation of the first aspect, or the second Aspect or method of any alternative implementation of the second aspect.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 shows a schematic block diagram of a method for transmitting signals according to an embodiment of the present application.
  • FIG. 3 shows another schematic block diagram of a method for transmitting a signal according to an embodiment of the present application.
  • FIG. 4 shows a schematic block diagram of a terminal device of an embodiment of the present application.
  • FIG. 5 shows a schematic block diagram of a network device of an embodiment of the present application.
  • FIG. 6 shows another schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 shows another schematic block diagram of a network device of an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SCMA) system, and a low-density signature (Low). Density Signature (LDS) system, etc., of course, the SCMA system and the LDS system may also be referred to as other names in the communication field; further, the technical solution of the embodiment of the present application can be applied to multi-carrier using non-orthogonal multiple access technology.
  • SCMA sparse code multiple access
  • LDS Density Signature
  • Orthogonal Frequency Division Multiplexing OFDM
  • Filter Bank Multi-Carrier FBMC
  • General Frequency Division Multiplexing Generalized Frequency Division Multiplexing (OFDM)) Frequency Division Multiplexing (GFDM)
  • Filtered Orthogonal Frequency Division Multiplexing Filtered-OFDM, F-OFDM
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), with wireless communication.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in this embodiment may be a device for communicating with a terminal device, and the network device may be a base station (Base Transceiver Station, BTS) in GSM or CDMA. It may be a base station (NodeB, NB) in a WCDMA system, or may be an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, or may be a Cloud Radio Access Network (CRAN) scenario.
  • the wireless controller, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, and the like. .
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a terminal device 10 and a network device 20.
  • the network device 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.
  • uplink power control is of great significance in terms of power saving and suppression of inter-cell interference. Therefore, uplink power control is a key part of LTE.
  • the uplink power control in the cell includes powers for controlling PUSCH, PUCCH, PRACH, and SRS, respectively.
  • uplink beam management can be performed based on SRS, that is, the terminal device transmits the SRS signal by using different beams on multiple SRS resources.
  • a beam-based power control method is introduced in 5G.
  • signals transmitted by different beams may have independent power control parameters, thereby obtaining different transmission powers.
  • multiple SRS resources of the terminal device may be configured with independent power control parameters to obtain transmission power due to different beams.
  • the same beam as the SRS signal on a certain SRS resource may be used. How to determine the transmit power of these uplink signals according to the beam used is a problem to be solved.
  • FIG. 2 shows a schematic block diagram of a method 100 for transmitting signals in an embodiment of the present application. As shown in FIG. 2, the method 100 includes:
  • the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal.
  • the terminal device determines, according to the SRS resource indication information, a first power control parameter of the target uplink signal.
  • the terminal device determines, according to the first power control parameter, a transmit power of the target uplink signal.
  • the terminal device sends the target uplink signal to the network device according to the sending power.
  • the network device may be configured in advance or one or more SRS resources are agreed by the protocol, and the SRSs sent on different SRS resources may adopt different beams, and the network device may also be configured in advance or agreed by the protocol.
  • a corresponding relationship between multiple SRS resources and power control parameters that is, each SRS resource may correspond to a set of independent power control parameters, and the network device may indicate to the terminal device which beam transmission corresponding to which SRS resource is used.
  • the target uplink signal, and the terminal device can obtain the power control parameter corresponding to the SRS resource indicated by the network device by using the corresponding relationship between the SRS resource and the power control parameter, and the terminal device can perform certain adjustment on the basis of the power control parameter indicated by the network device.
  • the power control parameter of the target uplink signal is determined or the power control parameter indicated by the network device may be directly determined as the power control parameter of the target uplink signal.
  • the method for transmitting a signal in the embodiment of the present application determines the transmission power of the target uplink signal by referring to the power control parameter corresponding to the SRS resource indication information sent by the network device, thereby improving the accuracy of the uplink power control. Can improve the performance of system transmission.
  • the target uplink signal may be the PUSCH, PUCCH, PRACH, and SRS mentioned above.
  • the target uplink signal may also be a PTRS, or may be a DMRS or the like.
  • the embodiment of the present application does not limit the type of the target uplink signal, and the transmission power may be calculated by using the technical solution of the embodiment of the present application.
  • the “correspondence” in the sounding reference signal SRS resource indication information corresponding to the target uplink signal may refer to that the network device and the terminal device pre-appoint or the network device configures that some indication manner belongs to a specific one.
  • An uplink signal for example, may be agreed that a specific domain in the downlink control information (Downlink Control Infornation, DCI) for scheduling the PUSCH is the SRS resource indication information corresponding to the PUSCH.
  • DCI Downlink Control Infornation
  • the SRS resource indication information may be indication information for indicating an SRS resource.
  • the network device and the terminal device pre-approve four kinds of SRS resources, and the four SRS resources respectively have independent power control parameters, and the network device and the terminal device can also agree to adopt two bits to indicate the four in advance.
  • the indication information corresponding to the SRS resource 1 is 00
  • the indication information corresponding to the SRS resource 2 is 01
  • the indication information corresponding to the SRS resource 3 is 10
  • the indication information corresponding to the SRS resource 4 is 11.
  • the terminal device may also directly obtain the reference power control parameter corresponding to the target uplink signal.
  • the network device wants the terminal device to use which beam to transmit the PUSCH, the network device can carry and collect in the DCI for scheduling the PUSCH.
  • the network device and the terminal device can agree in advance that a specific domain in the DCI for scheduling the PUSCH is used to indicate the reference power control parameter of the PUSCH. Therefore, the terminal device can directly obtain the reference power control parameter of the PUSCH, and does not need to obtain the reference power control parameter indirectly through the correspondence between the SRS resource and the reference power control parameter.
  • the "reference power control parameter" herein refers to the power control parameter used to transmit the SRS on a certain SRS resource.
  • the first power control parameter in the embodiment of the present application may be any one of a calculation formula of the transmission power or any combination of a plurality of parameters.
  • the calculation formula of the transmission power generally includes: the maximum allowed transmission power of the terminal device, the power offset, the transmission bandwidth of the uplink signal in the subframe, the target reception power, the path loss compensation factor, the closed-loop power adjustment amount, and the path loss.
  • SRSs sent on different SRS resources may use different beams. That is, there is a correspondence between at least two of the beam, the SRS resource, the SRS resource indication information, and the power control parameter.
  • the power control parameter corresponding to the SRS resource indicated by the network device it is possible to determine a preferred transmit power for the target uplink signal, and thereby improve the system transmission, if the same beam is used to transmit the SRS on the SRS resource indicated by the network device. performance.
  • the SRS resource indication information corresponding to the multiple target uplink signals mentioned above will be described in detail below.
  • the terminal device may send the SRS resource indication information to the network device. Specifically, the terminal device receives the first information sent by the network device, where the first information carries the SRS resource indication information, and the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, including: the terminal device From the first information, the SRS resource indication information is determined.
  • the first information may be high layer signaling such as RRC signaling, MAC signaling, DCI signaling, system information, and the like.
  • Embodiment 1 If the target uplink signal is a physical uplink shared channel PUSCH, the first information is downlink control information DCI for scheduling the PUSCH. It is known to those skilled in the art that the DCI can have multiple formats for transmitting different control, and the network device can agree with the terminal device to schedule an indication field of the DCI of the PUSCH to transmit the SRS resource indication information.
  • DCI downlink control information
  • the network device can agree with the terminal device to schedule an indication field of the DCI of the PUSCH to transmit the SRS resource indication information.
  • the first information may also be RRC signaling or MAC signaling, or system information.
  • Embodiment 2 If the target uplink signal is a physical random access channel PRACH, the first letter
  • the information can be system information or high layer signaling.
  • the PRACH is used to send a random access message and establish an RRC connection.
  • the terminal device may receive the information through system information, such as broadcast information; after the random access initialization, the terminal device may receive the information through the upper layer; therefore, the terminal device may receive the PRACH through the system information or the high layer signaling.
  • SRS resource indication information may be other system information (OSI) or Remaining System Information (RMSI).
  • the first information may be high layer signaling or downlink control information DCI.
  • the network device and the terminal device may predefine a certain high-level signaling or a specific domain in the DCI to indicate the SRS resource indication information corresponding to the SRS.
  • the target uplink signal is an aperiodic SRS
  • the terminal device may obtain the SRS resource indication information corresponding to the aperiodic SRS from the DCI that triggers the aperiodic SRS transmission.
  • the network device may carry the SRS resource indication information corresponding to the periodic SRS in the RRC signaling configured with the SRS type.
  • the SRS resource indication information carried in the DCI format may be the SRS resource indication information corresponding to the SRS triggered by the DCI format; when the terminal device detects the DCI format, When the second format is used, the SRS resource indication information carried in the DCI format may be the SRS resource indication information and the like corresponding to the SRS triggered in the DCI format.
  • Embodiment 4 If the target uplink signal is the phase tracking reference signal PTRS, the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, and includes: the SRS resource indication information that the terminal device corresponds to the first PUSCH The SRS resource indication information corresponding to the PTRS is determined, wherein the demodulation reference signal DMRS for demodulating the first PUSCH has an association relationship with the PTRS.
  • the association relationship may be a corresponding relationship of the network side configuration, for example, each PTRS port corresponds to one DMRS port; the association relationship may also be an association relationship on the spatial parameters, that is, the DMRS and the PTRS are in spatial parameters. It is Quasi-co-location.
  • the network device and the terminal device can agree that the SRS resource indication information corresponding to some types of uplink signals can be the same.
  • the terminal device may consider that the SRS resource indication information may also be PTRS, that is, the terminal device may obtain the SRS resource indication information corresponding to the PUSCH, according to the The SRS resource indication information of the PUSCH may determine a first power control parameter of the PTRS, and further determine a transmit power of the PTRS.
  • the terminal device can also obtain the PUCCH.
  • the SRS resource indication information may be determined as resource indication information of the PUSCH and the like.
  • Embodiment 5 If the target uplink signal is a physical uplink control channel PUCCH, the first information is a high layer signaling for indicating the PUCCH resource; or if the target uplink signal is a physical uplink control channel PUCCH, the first information is The downlink control information DCI received by the terminal device for scheduling the physical uplink shared channel (PUSCH); or if the target uplink signal is the physical uplink control channel (PUCCH), the first information is a Transmit Power Control (TPC) Command downlink control information DCI, the TPC command is used to indicate a closed loop power adjustment value of the PUCCH; or if the target uplink signal is a physical uplink control channel PUCCH, the first information is RRC signaling or media access control MAC signaling .
  • TPC Transmit Power Control
  • a resource block reserved to a PUCCH in one subframe is usually semi-statically configured. That is, the network device carries the SRS resource indication information in the RRC signaling of the resource that configures the PUCCH to the terminal device. It should be understood that the network device may also be not limited to being indicated together with the PUCCH resource, and may also pass other RRC signaling or MAC signaling.
  • the network device may also indicate the TPC command and the SRS resource indication information to the terminal device, that is, the SRS resource indication information, for example, DCI format 0 or DCI format 1A, in the DCI carrying the TPC command.
  • the network device may also be limited to being indicated with the TPC command, or may be indicated by other DCI.
  • the network device may also obtain the SRS resource indication information of the PUCCH in the DCI for scheduling the PUSCH that is received by the terminal device, which is not limited in this embodiment.
  • Embodiment 6 If the target uplink signal is a physical uplink control channel (PUCCH), the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, and the method includes: determining, by the terminal device, the PUCCH according to the format of the PUCCH SRS resource indication information corresponding to the format.
  • PUCCH physical uplink control channel
  • the network device may configure different SPU resource indication information corresponding to different PUCCH formats in advance.
  • the network device may be configured with PUCCH format1 corresponding to 000, PUCCH format1a may correspond to 001, etc., 000 is used to indicate SRS resource 0, 001 is used to indicate SRS resource 1 and the like.
  • the network device can notify the terminal device of the configuration manner, and when the terminal device needs to use the PUCCH of the format, it can know what the SRS resource indication information is corresponding to, and thus can know the corresponding reference power control parameter, thereby The transmission power used when transmitting the PUCCH is calculated.
  • the foregoing PUCCH format and the SRS resource indication information may be applied to other uplink signals.
  • the PRACH format may be associated with the SRS resource indication information.
  • the network device mentioned above configures different SRS resource indication information for different PUCCH formats, and similarly, the network device can directly configure different SRS resources for different PUCCH formats, or different power control parameters, etc. The embodiment is not limited to this.
  • the terminal device determines, according to the SRS resource indication information, the first power control parameter of the target uplink signal, where the terminal device corresponds to the SRS resource indicated by the SRS resource indication information.
  • the power control parameter is determined as a first power control parameter of the target uplink signal.
  • the terminal device may directly determine the power control parameter corresponding to the SRS resource indicated by the network device as the first power control parameter of the target uplink signal.
  • the target uplink signal may use the same path loss value as the SRS sent on the SRS resource indicated by the SRS resource indication information.
  • the terminal device may determine the power control parameter corresponding to the SRS resource indicated by the network device plus a certain offset as the first power control parameter of the target uplink signal.
  • the first power control parameter includes at least one of the following information: a path loss value used to calculate the transmit power, and a path loss used to calculate the transmit power.
  • the information for measuring the downlink signal used to calculate the path loss value of the transmission power may be regarded as the path loss reference associated information. That is, it can be a subset of the downlink signals used to estimate the path loss of the target uplink signal.
  • the path loss reference association information for the PUSCH may refer to which downlink pilot signals in the configuration set of the downlink pilot signals are used for performing path loss measurement to estimate the path loss of the PUSCH.
  • the target uplink signal may use the same downlink signal as the SRS sent on the SRS resource indicated by the SRS resource indication information to measure the path loss value, for example, using the same channel state information reference signal (Channel State Information-Reference Signals). , CSI-RS) to measure the path loss value.
  • the downlink signal may also be a synchronization signal or a Physical Broadcast Channel (PBCH) or the like.
  • PBCH Physical Broadcast Channel
  • the power control parameter may be the target power Po, the path loss factor a, or the closed-loop power control factor f(i).
  • the method before the determining, by the terminal device, the sounding reference signal SRS resource indication information corresponding to the target uplink signal, the method further includes: receiving, by the terminal device, configuration information sent by the network device, the configuration Information is used to indicate at least one SRS resource with at least one Corresponding relationship of the power control parameters, the at least one SRS resource includes the SRS resource indicated by the SRS resource indication information.
  • the network side may configure, for the terminal, N SRS resources and power control parameters used by each SRS resource to send the SRS, where the N SRS resources include the SRS resources indicated by the network to the terminal.
  • N may be an integer greater than or equal to 1.
  • the network device may configure each SRS resource and the corresponding SRS resource indication information in advance and notify the terminal device of the corresponding relationship or may also agree on the corresponding relationship by the protocol.
  • the method before the terminal device determines the sounding reference signal SRS resource indication information corresponding to the target uplink signal, the method further includes: the terminal device adopting a power control parameter pre-configured by the network device, The transmission power of the target uplink signal is determined.
  • the power control parameter configured by the network side for the target uplink signal is used until the SRS resource indication information is received.
  • the power control parameter used for transmitting the SRS on the SRS resource indicated by the SRS resource indication information is used instead of the pre-configured value on the network side.
  • the determining, by the terminal device, the first power control parameter of the target uplink signal, according to the SRS resource indication information includes: the terminal device according to the SRS resource indication information, and The uplink multiple access mode used by the target uplink signal determines a first power control parameter of the target uplink signal.
  • the terminal device may determine, according to the power control parameter corresponding to the SRS resource indicated by the SRS resource indication information, and the uplink multiple access mode used by the target uplink signal, the first power control parameter of the target uplink signal.
  • the uplink multiple access mode used by the target uplink signal is DFT-S-OFDM, or cyclic prefix orthogonal frequency division multiplexing (CP-OFDM).
  • the uplink multiple access mode used by the target uplink signal is DFT-S-OFDM
  • the power control parameter indicated by the SRS resource indication information is directly used as the first power control parameter of the target uplink signal; if the target uplink signal is used
  • the uplink multiple access mode is CP-OFDM, and a certain offset value is added to the power control parameter indicated by the SRS resource indication information as the first power control parameter of the target uplink signal.
  • the terminal device determines, according to the first power control parameter, a transmit power of the target uplink signal, where the terminal device uses the first power control parameter and the network device as the target. a second power control parameter preconfigured by the uplink signal to determine the target The transmit power of the line signal.
  • the first power control parameter may include a path loss value used to determine transmit power
  • the second power control parameter may include an open loop power control parameter and a closed loop power control parameter.
  • the first power control parameter can include an open loop power control parameter
  • the second power control parameter can include a closed loop power control parameter.
  • the first power control parameter can include a path loss value and a target power Po
  • the second power control parameter can include other power control parameters (eg, a path loss factor a and a closed loop power control factor f(i)).
  • the terminal device transmits the PUSCH on the subframe i of the serving cell c without transmitting the PUCCH
  • the user equipment transmits the power P PUSCH of the PUSCH in the subframe i of the serving cell c , c (i) is:
  • the terminal device transmits the PUSCH on the subframe i of the serving cell c and simultaneously transmits the PUCCH
  • the user equipment transmits the power P PUSCH of the PUSCH in the subframe i of the serving cell c
  • the c (i) is:
  • M PUSCH,c (i) is the number of RBs occupied by the PUSCH
  • P CMAX,c (i) the maximum transmit power of subframe i on the serving cell c configured for the terminal device, Is the linear value of P CMAX,c (i);
  • P 0_PUSCH,c (j) and ⁇ c (j) are values determined by the terminal device through higher layer signaling
  • PL c is a path loss value of the serving cell c measured by the terminal device to the terminal device;
  • ⁇ TF,c (i) is a value determined by the terminal device according to the ratio of the number of uplink data bits transmitted by the PUSCH to the number of resource units included in the PUSCH;
  • f c (i) is a value determined by the terminal device according to the power adjustment command for the PUSCH.
  • the terminal device only needs to follow the path corresponding to the SRS resource indication information sent by the network.
  • the loss value and other default parameters adjust the uplink transmit power of the PUSCH.
  • the terminal device may use the path loss value corresponding to the SRS resource indication information sent by the network, The f c (i) of the network device configuration and other default parameters adjust the uplink transmit power of the PUSCH.
  • FIG. 3 shows a schematic block diagram of a method 200 for transmitting signals in an embodiment of the present application. As shown in FIG. 3, the method 200 includes:
  • the network device sends, to the terminal device, SRS resource indication information corresponding to the target uplink signal, where the SRS resource indication information is used by the terminal device to determine a first power control parameter of the target uplink signal.
  • the network device receives the target uplink signal that is sent by the terminal device according to the first power control parameter.
  • the method for transmitting a signal in the embodiment of the present application determines the transmission power of the target uplink signal by referring to the power control parameter corresponding to the SRS resource indication information sent by the network device, thereby improving the accuracy of the uplink power control. Can improve the performance of system transmission.
  • the target uplink signal is a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical random access channel PRACH, a phase tracking reference signal PTRS, or a sounding reference signal SRS.
  • the SRS resource indication information is carried in the downlink control information DCI for scheduling the PUSCH; or if the target uplink signal is physical The random access channel PRACH, the SRS resource indication information is carried in the system information or the high layer signaling; or if the target uplink signal is the sounding reference signal SRS, the SRS resource indication information is carried in the high layer signaling or the downlink control information DCI.
  • PUSCH physical uplink shared channel
  • the SRS resource indication information is carried in the downlink control information DCI for scheduling the PUSCH
  • the target uplink signal is physical The random access channel PRACH
  • the SRS resource indication information is carried in the system information or the high layer signaling
  • the target uplink signal is the sounding reference signal SRS
  • the SRS resource indication information is carried in the high layer signaling or the downlink control information DCI.
  • the SRS resource indication information is carried in a high layer signaling for indicating the PUCCH resource; or if the target uplink signal is physical An uplink control channel (PUCCH), the SRS resource indication information is carried in a downlink control information DCI that is recently received by the terminal device for scheduling a physical uplink shared channel (PUSCH); or if the target uplink signal is a physical uplink control channel (PUCCH), the SRS resource The indication information is carried in the downlink control information DCI carrying the transmission power control TPC command, where the TPC command is used to indicate the closed loop power adjustment value of the PUCCH; or if the target uplink signal is the physical uplink control channel PUCCH, the SRS resource indication information bearer In the radio resource control RRC signaling or the medium access control MAC signaling.
  • the first power control parameter includes the following information to One less information: a path loss value for calculating the transmission power, information for measuring a downlink signal for calculating a path loss value of the transmission power, an open loop power control parameter, and a closed loop power control parameter.
  • the method further includes: the network device sending configuration information to the terminal device, where the configuration information is used to indicate a correspondence between the at least one sounding reference signal SRS resource and the at least one power control parameter,
  • the at least one SRS resource includes an SRS resource indicated by the SRS resource indication information.
  • system and “network” are used interchangeably herein.
  • the term “and/or” in this context is merely an association describing the associated object, indicating that there may be three relationships, for example, A and/or B, which may indicate that A exists separately, and both A and B exist, respectively. B these three situations.
  • the character "/" in this article generally indicates that the contextual object is an "or" relationship.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 4 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application.
  • the terminal device 300 includes:
  • a first determining unit 310 configured to determine sounding reference signal SRS resource indication information corresponding to the target uplink signal
  • a second determining unit 320 configured to determine, according to the SRS resource indication information, a first power control parameter of the target uplink signal
  • a third determining unit 330 configured to determine, according to the first power control parameter, a transmit power of the target uplink signal
  • the sending unit 340 is configured to send the target uplink signal to the network device according to the sending power.
  • the terminal device in the embodiment of the present application is advantageous for improving the accuracy of the power control, thereby improving the performance of the system transmission.
  • the target uplink signal is a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical random access channel PRACH, a phase tracking reference signal PTRS, or a sounding reference signal SRS.
  • the terminal device 300 further includes: a first receiving unit, configured to receive first information sent by the network device, where the first information carries the SRS resource indication information; the first determining The unit 310 is specifically configured to: determine the SRS resource indication information from the first information.
  • the first information is downlink control information DCI used for scheduling the PUSCH; or if the target uplink signal is physical random access.
  • the channel PRACH the first information is system information or high layer signaling; or if the target uplink signal is the sounding reference signal SRS, the first information is high layer signaling or downlink control information DCI.
  • the target uplink signal is a physical uplink control channel (PUCCH)
  • the first information is a high layer signaling used to indicate the PUCCH resource
  • the first information is the downlink control information DCI recently received by the terminal device for scheduling the physical uplink shared channel PUSCH; or if the target uplink signal is the physical uplink control channel PUCCH
  • the first information is downlink control information DCI carrying a transmission power control TPC command, where the TPC command is used to indicate a closed loop power adjustment value of the PUCCH; or if the target uplink signal is a physical uplink control channel PUCCH, the first information is Radio resource control RRC signaling or media access control MAC signaling.
  • the first determining unit 310 is specifically configured to: determine, according to the format of the PUCCH, an SRS resource indication corresponding to the format of the PUCCH. information.
  • PUCCH physical uplink control channel
  • the first determining unit 310 is specifically configured to: determine the SRS resource indication information corresponding to the first PUSCH as the PTRS corresponding to the PTRS. SRS resource indication information, wherein a demodulation reference signal DMRS for demodulating the first PUSCH is associated with the PTRS.
  • the second determining unit 320 is specifically configured to determine, by using the power control parameter corresponding to the SRS resource indicated by the SRS resource indication information, a first power control parameter of the target uplink signal.
  • the first power control parameter includes the following information to One less information: a path loss value for calculating the transmission power, information for measuring a downlink signal for calculating a path loss value of the transmission power, an open loop power control parameter, and a closed loop power control parameter.
  • the terminal device 300 further includes: a second receiving unit, configured to receive configuration information sent by the network device, where the configuration information is used to indicate at least one SRS resource and at least one power control parameter Corresponding relationship, the at least one SRS resource includes an SRS resource indicated by the SRS resource indication information.
  • the terminal device 300 further includes: a fourth determining unit, configured to determine, by using a power control parameter pre-configured by the network device, a transmit power of the target uplink signal.
  • the second determining unit 320 is specifically configured to: determine, according to the SRS resource indication information and an uplink multiple access mode used by the target uplink signal, a first power control parameter of the target uplink signal. .
  • the second determining unit 320 is specifically configured to: determine, according to the power control parameter corresponding to the SRS resource indicated by the SRS resource indication information, and the uplink multiple access mode used by the target uplink signal, The first power control parameter of the target uplink signal.
  • the uplink multiple access mode used by the target uplink signal is a discrete Fourier transform extended orthogonal frequency division multiplexing DFT-S-OFDM, or a cyclic prefix orthogonal frequency division multiplexing (CP) - OFDM.
  • DFT-S-OFDM discrete Fourier transform extended orthogonal frequency division multiplexing
  • CP cyclic prefix orthogonal frequency division multiplexing
  • the third determining unit 330 is specifically configured to: determine the target uplink according to the first power control parameter and a second power control parameter that is preconfigured by the network device for the target uplink signal. The transmit power of the signal.
  • terminal device 300 may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 300 respectively implement the terminal in the method of FIG. 2
  • the corresponding process of the device is not described here for brevity.
  • FIG. 5 shows a schematic block diagram of a network device 400 of an embodiment of the present application.
  • the network device 400 includes:
  • the first sending unit 410 is configured to send, to the terminal device, SRS resource indication information corresponding to the target uplink signal, where the SRS resource indication information is used by the terminal device to determine a first power control parameter of the target uplink signal;
  • the receiving unit 420 is configured to receive the target uplink signal that is sent by the terminal device based on the first power control parameter.
  • the network device in the embodiment of the present application is advantageous for improving the accuracy of the power control, thereby improving the performance of the system transmission.
  • the target uplink signal is a physical uplink shared channel PUSCH, a physical uplink control channel PUCCH, a physical random access channel PRACH, a phase tracking reference signal PTRS, or a sounding reference signal SRS.
  • the SRS resource indication information is carried in the downlink control information DCI for scheduling the PUSCH; or if the target uplink signal is physical The random access channel PRACH, the SRS resource indication information is carried in the system information or the high layer signaling; or if the target uplink signal is the sounding reference signal SRS, the SRS resource indication information is carried in the high layer signaling or the downlink control information DCI.
  • PUSCH physical uplink shared channel
  • the SRS resource indication information is carried in the downlink control information DCI for scheduling the PUSCH
  • the target uplink signal is physical The random access channel PRACH
  • the SRS resource indication information is carried in the system information or the high layer signaling
  • the target uplink signal is the sounding reference signal SRS
  • the SRS resource indication information is carried in the high layer signaling or the downlink control information DCI.
  • the SRS resource indication information is carried in a high layer signaling for indicating the PUCCH resource; or if the target uplink signal is physical An uplink control channel (PUCCH), the SRS resource indication information is carried in a downlink control information DCI that is recently received by the terminal device for scheduling a physical uplink shared channel (PUSCH); or if the target uplink signal is a physical uplink control channel (PUCCH), the SRS resource The indication information is carried in the downlink control information DCI carrying the transmission power control TPC command, where the TPC command is used to indicate the closed loop power adjustment value of the PUCCH; or if the target uplink signal is the physical uplink control channel PUCCH, the SRS resource indication information bearer In the radio resource control RRC signaling or the medium access control MAC signaling.
  • the first power control parameter includes at least one of the following information: a path loss value used to calculate the transmit power, and a path loss used to calculate the transmit power.
  • the network device 400 further includes: a second sending unit, configured to send, to the terminal device, configuration information, where the configuration information is used to indicate at least one sounding reference signal SRS resource and at least one power control Corresponding relationship of the parameters, the at least one SRS resource includes an SRS resource indicated by the SRS resource indication information.
  • a second sending unit configured to send, to the terminal device, configuration information, where the configuration information is used to indicate at least one sounding reference signal SRS resource and at least one power control Corresponding relationship of the parameters, the at least one SRS resource includes an SRS resource indicated by the SRS resource indication information.
  • the network device 400 may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 400 respectively implement the network in the method of FIG.
  • the corresponding process of the device is not described here for brevity.
  • the embodiment of the present application further provides a terminal device 500, which may be the terminal device 300 in FIG. 4, which can be used to execute the terminal corresponding to the method 100 in FIG.
  • the content of the end device includes an input interface 510, an output interface 520, a processor 530, and a memory 540.
  • the input interface 510, the output interface 520, the processor 530, and the memory 540 can be connected by a bus system.
  • the memory 540 is for storing programs, instructions or code.
  • the processor 530 is configured to execute a program, an instruction or a code in the memory 540 to control the input interface 510 to receive a signal, control the output interface 520 to send a signal, and complete the operations in the foregoing method embodiments.
  • the terminal device in the embodiment of the present application determines the transmission power of the target uplink signal by referring to the power control parameter corresponding to the SRS resource indication information sent by the network device, which is beneficial to improving the accuracy of the uplink power control, thereby improving system transmission. Performance.
  • the processor 530 may be a central processing unit (CPU), and the processor 530 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 540 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 540 may also include a non-volatile random access memory. For example, the memory 540 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the first determining unit, the second determining unit, the third determining unit, and the fourth determining unit in the terminal device 300 may be implemented by the processor 530 in FIG. 6, where the sending unit of the terminal device 300 may be configured by The output interface 520 in FIG. 6 is implemented, and the first receiving unit and the second receiving unit of the terminal device 300 can be implemented by the input interface 510 in FIG.
  • the embodiment of the present application further provides a network device 600, where the network device 600 It can be the network device 400 of FIG. 5 that can be used to execute the content of the network device corresponding to the method 200 of FIG.
  • the network device 600 includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected by a bus system.
  • the memory 640 is used to store programs, instructions or code.
  • the processor 630 is configured to execute a program, an instruction or a code in the memory 640 to control the input interface 610 to receive a signal, control the output interface 620 to send a signal, and complete the operations in the foregoing method embodiments.
  • the network device in the embodiment of the present application is advantageous for improving the accuracy of the power control, thereby improving the performance of the system transmission.
  • the processor 630 may be a central processing unit (CPU), and the processor 630 may also be another general-purpose processor, a digital signal processor (DSP). , Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the first sending unit and the second sending unit in the network device 400 may be implemented by the output interface 620 in FIG. 7, and the receiving unit in the network device 400 may be implemented by the input interface 610 in FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

本申请实施例公开了一种用于传输信号的方法、终端设备和网络设备，该方法包括：终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息；该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数；该终端设备根据该第一功率控制参数，确定该目标上行信号的发送功率；该终端设备根据该发送功率，向网络设备发送该目标上行信号。本申请实施例的方法、终端设备和网络设备，有利于提高功率控制的准确性，从而能够提高系统传输的性能。

Description

用于传输信号的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种用于传输信号的方法、终端设备和网络设备。
背景技术
对于上行信号，终端的功率控制在节电和抑制小区间干扰两方面具有重要意义，因此，如何提高上行功率控制的准确性是一直研究的问题。
发明内容
有鉴于此，本申请实施例提供了一种用于传输信号的方法、终端设备和网络设备，有利于提高上行功率控制的准确性，从而能够提高系统传输的性能。
第一方面，提供了一种用于传输信号的方法，该方法包括：终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息；该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数；该终端设备根据该第一功率控制参数，确定该目标上行信号的发送功率；该终端设备根据该发送功率，向网络设备发送该目标上行信号。
SRS资源指示信息可以是用于指示SRS资源的指示信息。网络设备可以提前配置好或者通过协议约定好一个或多个SRS资源，网络设备还可以提前配置好不同的SRS资源对应一组独立的功率控制参数。
通过参考与网络设备发送的SRS资源指示信息对应的功率控制参数来确定目标上行信号的发送功率，有利于提高上行功率控制的准确性，从而能够提高系统传输的性能。
该目标上行信号可以为物理上行共享信道(Physical Uplink Shared Channel，PUSCH)、物理上行控制信道(Physical Uplink Control Channel，PUCCH)、物理随机接入信道(Physical Random Access Channel，PRACH)和SRS，目标上行信号还可以是相位跟踪参考信号(Phase Tracking Reference Signal，PTRS)，或者也可以是解调参考信号(Demodulation Reference Signal，DMRS)等。
与目标上行信号对应的探测参考信号SRS资源指示信息可以是指网络设备和终端设备预先约定好或者由网络设备配置好某种指示方式是属于特定的一种上行信号。
可选地，该第一功率控制参数可以是发送功率的计算公式中的任一项或者多项参数的任意组合。
可选地，在不同的SRS资源上发送的SRS可以采用不同的波束。也就是说，波束、SRS资源、SRS资源指示信息以及功率控制参数中的至少两者之间是有对应关系的。
通过参考网络设备指示的SRS资源对应的功率控制参数，从而可以在与网络设备指示的SRS资源上发送SRS采用同一波束的情况下，为目标上行信号确定较佳的发送功率，进而提高系统传输的性能。
可选地，网络设备也可以显性指示与目标上行信号对应的参考功率控制参数，其中，参考功率控制参数也就是在某一SRS资源上发送SRS所采用的功率控制参数。
在一种可能的实现方式中，该方法还包括：该终端设备接收该网络设备发送的第一信息，该第一信息携带该SRS资源指示信息；该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备从该第一信息中，确定该SRS资源指示信息。
可选地，该第一信息可以是如无线资源控制(Radio Resource Control，RRC)信令、媒体接入控制(Media Access Control，MAC)信令等高层信令、DCI信令、系统信息以及广播等。
在一种可能的实现方式中，若该目标上行信号为物理上行共享信道PUSCH，该第一信息为用于调度该PUSCH的下行控制信息DCI；或若该目标上行信号为物理随机接入信道PRACH，该第一信息为系统信息或高层信令；或若该目标上行信号为探测参考信号SRS，该第一信息为高层信令或下行控制信息DCI。
可选地，如果该目标上行信号为周期性SRS，终端设备可以在配置该SRS类型的RRC信令中携带该周期性SRS对应的SRS资源指示信息；如果该目标上行信号为非周期性SRS，则终端设备可以通过触发该非周期SRS传输的DCI中获取该非周期SRS对应的SRS资源指示信息。
在一种可能的实现方式中，若该目标上行信号为物理上行控制信道 PUCCH，该第一信息为用于指示该PUCCH资源的高层信令；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为携带传输功率控制TPC命令的下行控制信息DCI，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为无线资源控制RRC信令或媒体接入控制MAC信令。
在一种可能的实现方式中，若该目标上行信号为物理上行控制信道PUCCH，该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备根据该PUCCH的格式，确定与该PUCCH的格式对应的SRS资源指示信息。
可选地，网络设备可以提前配置好不同的PUCCH格式对应不同的SRS资源指示信息。
在一种可能的实现方式中，若该目标上行信号为相位跟踪参考信号PTRS，该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备将与第一PUSCH对应的SRS资源指示信息确定为该PTRS对应的SRS资源指示信息，其中，用于解调该第一PUSCH的解调参考信号DMRS与该PTRS具有关联关系。
在一种可能的实现方式中，该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数，包括：该终端设备将该SRS资源指示信息指示的SRS资源对应的功率控制参数，确定为该目标上行信号的第一功率控制参数。
可选地，终端设备也可以将网络设备指示的SRS资源对应的功率控制参数加上一定的偏移量确定为目标上行信号的第一功率控制参数。
在一种可能的实现方式中，该第一功率控制参数包括以下信息中的至少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
可选地，该功率控制参数可以是目标功率Po，也可以是路损因子a，还可以是闭环功率控制因子f(i)等。
在一种可能的实现方式中，在该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，该方法还包括：该终端设备接收该网络 设备发送的配置信息，该配置信息用于指示至少一个SRS资源与至少一个功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
可选地，网络设备可以提前配置每个SRS资源以及对应的SRS资源指示信息并告知终端设备该对应关系或者也可以由协议约定好该对应关系。
在一种可能的实现方式中，在该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，该方法还包括：该终端设备采用该网络设备预先配置的功率控制参数，确定该目标上行信号的发送功率。
在一种可能的实现方式中，该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数，包括：该终端设备根据该SRS资源指示信息以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数。
在一种可能的实现方式中，该终端设备根据该SRS资源指示信息以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数，包括：该终端设备根据该SRS资源指示信息指示的SRS资源对应的功率控制参数，以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数。
在一种可能的实现方式中，该目标上行信号所用的上行多址方式为离散傅里叶变换-扩展-正交频分复用DFT-S-OFDM，或者循环前缀-正交频分复用CP-OFDM。
可选地，若该目标上行信号所用的上行多址方式为离散傅里叶变换-扩展-正交频分复用(Discrete Fourier transform-Spread-Orthogonal Frequency Division Multiplexing，DFT-S-OFDM)，该终端设备将与该SRS资源指示信息指示的SRS资源对应的功率控制参数确定为该目标上行信号的第一功率控制参数；或若该目标上行信号所用的上行多址方式为循环前缀-正交频分复用(Cyclic Prefix-Orthogonal Frequency Division Multiplexing，CP-OFDM)，该终端设备将与该SRS资源指示信息指示的SRS资源对应的功率控制参数加上预设的偏移量确定为该目标上行信号的第一功率控制参数。
在一种可能的实现方式中，该终端设备根据该第一功率控制参数，确定该目标上行信号的发送功率，包括：该终端设备根据该第一功率控制参数和该网络设备为该目标上行信号预配置的第二功率控制参数，确定该目标上行 信号的发送功率。
第二方面，提供了一种用于传输信号的方法，该方法包括：网络设备向终端设备发送与目标上行信号对应的SRS资源指示信息，该SRS资源指示信息用于该终端设备确定该目标上行信号的第一功率控制参数；该网络设备接收该终端设备基于该第一功率控制参数发送的该目标上行信号。
在一种可能的实现方式中，该目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
在一种可能的实现方式中，若该目标上行信号为物理上行共享信道PUSCH，该SRS资源指示信息承载于用于调度该PUSCH的下行控制信息DCI中；或若该目标上行信号为物理随机接入信道PRACH，该SRS资源指示信息承载于系统信息或高层信令中；或若该目标上行信号为探测参考信号SRS，该SRS资源指示信息承载于高层信令或下行控制信息DCI中。
在一种可能的实现方式中，若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于用于指示该PUCCH资源的高层信令中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于携带传输功率控制TPC命令的下行控制信息DCI中，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于无线资源控制RRC信令或媒体接入控制MAC信令中。
在一种可能的实现方式中，该第一功率控制参数包括以下信息中的至少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
在一种可能的实现方式中，该方法还包括：该网络设备向该终端设备发送配置信息，该配置信息用于指示至少一个探测参考信号SRS资源与至少一个功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
第三方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一 方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，提供了一种网络设备，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述各方面所设计的程序。
第八方面，提供了一种包括指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面或第一方面的任一可选的实现方式中的方法，或者上述第二方面或第二方面的任一可选的实现方式中的方法。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了本申请实施例的用于传输信号的方法的示意性框图。
图3示出了本申请实施例的用于传输信号的方法的另一示意性框图。
图4示出了本申请实施例的终端设备的示意性框图。
图5示出了本申请实施例的网络设备的示意性框图。
图6示出了本申请实施例的终端设备的另一示意性框图。
图7示出了本申请实施例的网络设备的另一示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、LTE系统、LTE频分双工(Frequency Division Duplex，FDD)系统、LTE时分双工(Time Division Duplex，TDD)、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access，WiMAX)通信系统、新无线(New Radio，NR)或未来的5G系统等。
特别地，本申请实施例的技术方案可以应用于各种基于非正交多址接入技术的通信系统，例如稀疏码多址接入(Sparse Code Multiple Access，SCMA)系统、低密度签名(Low Density Signature，LDS)系统等，当然SCMA系统和LDS系统在通信领域也可以被称为其他名称；进一步地，本申请实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统，例如采用非正交多址接入技术正交频分复用(Orthogonal Frequency Division Multiplexing，OFDM)、滤波器组多载波(Filter Bank Multi-Carrier，FBMC)、通用频分复用(Generalized Frequency Division Multiplexing，GFDM)、滤波正交频分复用(Filtered-OFDM，F-OFDM)系统等。
本申请实施例中的终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。接入终端可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，SIP)电话、无线本地环路(Wireless Local Loop，WLL)站、个人数字处理(Personal Digital Assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是GSM或CDMA中的基站(Base Transceiver Station，BTS)，也 可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional NodeB，eNB或eNodeB)，还可以是云无线接入网络(Cloud Radio Access Network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是本申请实施例一个应用场景的示意图。图1中的通信系统可以包括终端设备10和网络设备20。网络设备20用于为终端设备10提供通信服务并接入核心网，终端设备10通过搜索网络设备20发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备10与网络设备20之间的蜂窝链路进行的上/下行传输。
对于上行信号，终端的功率控制在节电和抑制小区间干扰两方面具有重要意义，因此，上行功率控制是LTE重点关注的部分。小区内的上行功率控制，分别包括控制PUSCH、PUCCH、PRACH和SRS的功率。
在5G中可以基于SRS进行上行的波束管理，即终端设备会在多个SRS资源上采用不同波束发送SRS信号。同时，5G中引入了基于波束的功率控制方法，为了选择合理的发送功率，采用不同波束发送的信号可以有独立的功率控制参数，从而得到不同的发送功率。此时终端设备的多个SRS资源由于采用不同的波束，可以配置独立的功率控制参数来得到发送功率。对于终端设备发送的其他上行信号，如PUSCH/PUCCH等，可以采用和某个SRS资源上的SRS信号相同的波束。如何根据所用的波束来确定这些上行信号的发送功率是需要解决的问题。
图2示出了本申请实施例的用于传输信号的方法100的示意性框图。如图2所示，该方法100包括：
S110，终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息；
S120，该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数；
S130，该终端设备根据该第一功率控制参数，确定该目标上行信号的发送功率；
S140，该终端设备根据该发送功率，向网络设备发送该目标上行信号。
具体地，网络设备可以提前配置好或者通过协议约定好一个或多个SRS资源，在不同SRS资源上发送的SRS可以采用不同的波束，并且网络设备也可以提前配置好或者通过协议约定好该一个或多个SRS资源与功率控制参数的对应关系，也就是说，每一个SRS资源可以对应一组独立的功率控制参数，那么网络设备可以通过向终端设备指示使用与哪一个SRS资源对应的波束传输目标上行信号，进而终端设备就可以通过SRS资源与功率控制参数的对应关系获取到网络设备指示的SRS资源对应的功率控制参数，终端设备可以在网络设备指示的功率控制参数的基础上进行一定调整，确定目标上行信号的功率控制参数或者也可以直接将网络设备指示的功率控制参数确定为目标上行信号的功率控制参数。
因此，本申请实施例的用于传输信号的方法，通过参考与网络设备发送的SRS资源指示信息对应的功率控制参数来确定目标上行信号的发送功率，有利于提高上行功率控制的准确性，从而能够提高系统传输的性能。
应理解，目标上行信号可以是上述提到的PUSCH、PUCCH、PRACH以及SRS。目标上行信号还可以是PTRS，或者也可以是DMRS等，本申请实施例对目标上行信号的类型不作限定，只要是上行信号都可以用本申请实施例的技术方案计算发送功率。
在本申请实施例中，与目标上行信号对应的探测参考信号SRS资源指示信息中的“对应”可以是指网络设备和终端设备预先约定好或者由网络设备配置好某种指示方式是属于特定的一种上行信号，例如，可以约定好用于调度PUSCH的下行控制信息(Downlink Control Infornation，DCI)中的某个特定域为该PUSCH对应的SRS资源指示信息。
另外，本领域技术人员理解，SRS资源指示信息可以是用于指示SRS资源的指示信息。例如，网络设备和终端设备预先约定好4种SRS资源，并且该4种SRS资源分别都有独立的功率控制参数，那么网络设备和终端设备还可以提前约定好采用2个bit来指示该4个SRS资源，具体地，SRS资源1对应的指示信息为00，SRS资源2对应的指示信息为01，SRS资源3对应的指示信息为10，SRS资源4对应的指示信息为11。
可选地，在本申请实施例中，终端设备也可以直接获取到与目标上行信号对应的参考功率控制参数。例如，网络设备如果想让终端设备采用哪个波束发送PUSCH，那么网络设备可以在用于调度PUSCH的DCI中携带与采 用该波束的SRS资源对应的参考功率控制参数的指示，同样地，网络设备和终端设备可以提前约定好用于调度PUSCH的DCI中的某个特定域是用来指示该PUSCH的参考功率控制参数的，进而终端设备就可以直接获取到该PUSCH的参考功率控制参数，而不必通过SRS资源与参考功率控制参数的对应关系而间接获取到参考功率控制参数。应理解，这里的“参考功率控制参数”是指某个SRS资源上发送SRS所用的功率控制参数。
还应理解，本申请实施例中的第一功率控制参数可以是发送功率的计算公式中的任一项或者多项参数的任意组合。例如，发送功率的计算公式一般包括：终端设备的最大允许发射功率、功率偏移量、上行信号在子帧上的传输带宽、目标接收功率、路径损耗补偿因子、闭环功率调整量和路径损耗等。
可选地，在不同的SRS资源上发送的SRS可以采用不同的波束。也就是说，波束、SRS资源、SRS资源指示信息以及功率控制参数中的至少两者之间是有对应关系的。
通过参考网络设备指示的SRS资源对应的功率控制参数，从而可以在与网络设备指示的SRS资源上发送SRS采用同一波束的情况下，为目标上行信号确定较佳的发送功率，进而提高系统传输的性能。
下面将分别对获取上述提及的多种目标上行信号对应的SRS资源指示信息进行详细描述。
可选地，终端设备可以向网络设备下发该SRS资源指示信息。具体地，该终端设备接收该网络设备发送的第一信息，该第一信息携带该SRS资源指示信息；该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备从该第一信息中，确定该SRS资源指示信息。
应理解，该第一信息可以是如RRC信令、MAC信令等高层信令、DCI信令、系统信息等。
实施例1：若该目标上行信号为物理上行共享信道PUSCH，该第一信息为用于调度该PUSCH的下行控制信息DCI。本领域技术人员知道，DCI可以有多种格式，用于传递不同的控制，网络设备可以与终端设备约定好用来调度PUSCH的DCI的某个指示域用来传输该SRS资源指示信息。
可选地，若该目标上行信号为物理上行共享信道PUSCH，第一信息还可以是RRC信令或者MAC信令，又或者是系统信息等。
实施例2：若该目标上行信号为物理随机接入信道PRACH，该第一信 息可以为系统信息或高层信令。PRACH是用来发送随机接入消息，进行RRC连接的建立。在随机接入初始化之前，终端设备可以通过系统信息例如广播信息接收信息；在随机接入初始化之后，终端设备可以通过高层接收信息；因此，终端设备可以通过系统信息或者高层信令接收与PRACH对应的SRS资源指示信息。其中，该系统信息可以是其他系统信息(Other System Information，OSI)或者剩余系统信息(Remaining System Information，RMSI)。
实施例3：若该目标上行信号为探测参考信号SRS，该第一信息可以为高层信令或下行控制信息DCI。类似地，网络设备和终端设备可以提前约定好高层信令或者DCI中的某个特定域来指示所述SRS对应的SRS资源指示信息。例如，如果该目标上行信号为非周期性SRS，则终端设备可以从触发该非周期SRS传输的DCI中获取该非周期SRS对应的SRS资源指示信息。再例如，如果该目标上行信号为周期性SRS，网络设备可以在配置该SRS类型的RRC信令中携带该周期性SRS对应的SRS资源指示信息。再例如，当终端设备检测到DCI格式为第一格式时，可以认为该DCI格式中携带的SRS资源指示信息为该DCI格式下触发的SRS对应的SRS资源指示信息；当终端设备检测到DCI格式为第二格式时，可以认为该DCI格式中携带的SRS资源指示信息为该DCI格式下触发的SRS对应的SRS资源指示信息等。
实施例4：若该目标上行信号为相位跟踪参考信号PTRS，该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备将与第一PUSCH对应的SRS资源指示信息确定为该PTRS对应的SRS资源指示信息，其中，用于解调该第一PUSCH的解调参考信号DMRS与该PTRS具有关联关系。应理解，这种关联关系可以是网络侧配置的对应关系，如每个PTRS端口对应一个DMRS端口；这种关联关系也可以是空间参数上的关联关系，即DMRS与所述PTRS在空间参数上是准同址(Quasi-co-location)的。
也就是说，网络设备和终端设备可以约定好某些类型的上行信号对应的SRS资源指示信息可以相同。例如，终端设备一旦获取到PUSCH对应的SRS资源指示信息之后，终端设备可以认为该SRS资源指示信息也可以是PTRS的，也就是说终端设备可以在获取到PUSCH对应的SRS资源指示信息后，根据该PUSCH的SRS资源指示信息可以确定该PTRS的第一功率控制参数，进而可以确定PTRS的发送功率。类似地，终端设备也可以在获取到PUCCH 对应的SRS资源指示信息后，可以将该SRS资源指示信息确定为PUSCH的资源指示信息等。
实施例5：若该目标上行信号为物理上行控制信道PUCCH，该第一信息为用于指示该PUCCH资源的高层信令；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为携带传输功率控制(Transmit Power Control，TPC)命令的下行控制信息DCI，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为RRC信令或媒体接入控制MAC信令。
具体地，对于终端设备而言，在一个子帧中预留给PUCCH的资源块通常是半静态配置的。也就是说，网络设备在向终端设备配置PUCCH的资源的RRC信令中携带该SRS资源指示信息。应理解，网络设备也可以不限于跟PUCCH资源一起指示，也可以通过其他的RRC信令或者MAC信令。
网络设备也可以将TPC命令和SRS资源指示信息一起指示给终端设备，也就是说在携带TPC命令的DCI中承载该SRS资源指示信息，例如，DCI format 0或DCI format 1A。网络设备也可以不限于是跟TPC命令一起指示，也可以通过其他DCI指示。例如，网络设备也可以通过终端设备最近接收到的用于调度PUSCH的DCI中获取PUCCH的SRS资源指示信息，本申请实施例对此不构成限定。
实施例6：若该目标上行信号为物理上行控制信道PUCCH，该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：该终端设备根据该PUCCH的格式，确定与该PUCCH的格式对应的SRS资源指示信息。
具体地，网络设备可以提前配置好不同的PUCCH格式对应不同的SRS资源指示信息。例如，网络设备可以配置好PUCCH format1对应000，PUCCH format1a可以对应001等，000用于指示SRS资源0，001用于指示SRS资源1等。并且网络设备可以将这种配置方式告知终端设备，那么当终端设备需要使用哪种格式的PUCCH时，就可以知道与其对应的SRS资源指示信息是什么，进而可以知道对应的参考功率控制参数，从而计算出发送该PUCCH时采用的发送功率。
应理解，上述将PUCCH格式与SRS资源指示信息对应起来也可以应用在其他上行信号中，例如，可以将PRACH格式与SRS资源指示信息对应起来。还应理解，上述提及的网络设备为不同PUCCH格式配置不同的SRS资源指示信息，同样地，网络设备可以直接为不同的PUCCH格式配置不同的SRS资源，或者不同的功率控制参数等，本申请实施例不限于此。
可选地，在本申请实施例中，该终端设备根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数，包括：该终端设备将该SRS资源指示信息指示的SRS资源对应的功率控制参数，确定为该目标上行信号的第一功率控制参数。
具体地，终端设备可以直接将网络设备指示的SRS资源对应的功率控制参数确定为该目标上行信号的第一功率控制参数。例如，该目标上行信号可以与该SRS资源指示信息指示的SRS资源上发送的SRS采用相同的路损值。或者终端设备也可以将网络设备指示的SRS资源对应的功率控制参数加上一定的偏移量确定为目标上行信号的第一功率控制参数。
可选地，在本申请实施例中，该第一功率控制参数包括以下信息中的至少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
其中，该用于测量用于计算该发送功率的路损值的下行信号的信息可以认为是路损参考关联信息。也就是说可以是用于对目标上行信号的路径损耗进行估计的下行信号的子集。例如，针对PUSCH的路损参考关联信息可以是指下行导频信号的配置集合中的哪些下行导频信号用于进行路径损耗的测量从而估计PUSCH的路径损耗。例如，该目标上行信号可以与该SRS资源指示信息指示的SRS资源上发送的SRS采用相同的下行信号来测量得到的路损值，比如采用相同的信道状态信息参考信号(Channel State Information-Reference Signals，CSI-RS)来测量路损值。该下行信号还可以是同步信号或者物理广播信道(Physical Broadcast Channel，PBCH)等。
具体地，该功率控制参数可以是目标功率Po，也可以是路损因子a，还可以是闭环功率控制因子f(i)等。
可选地，在本申请实施例中，在该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，该方法还包括：该终端设备接收该网络设备发送的配置信息，该配置信息用于指示至少一个SRS资源与至少一个 功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
具体地，网络侧可以为终端配置N个SRS资源及每个SRS资源发送SRS所用的功率控制参数，该N个SRS资源包含该网络向终端指示的SRS资源。这里N可以是大于等于1的整数。类似地，网络设备可以提前配置每个SRS资源以及对应的SRS资源指示信息并告知终端设备该对应关系或者也可以由协议约定好该对应关系。
可选地，在本申请实施例中，在该终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，该方法还包括：该终端设备采用该网络设备预先配置的功率控制参数，确定该目标上行信号的发送功率。
换句话说，如果终端没有接收到网络侧发送的SRS资源指示信息，则采用网络侧预先为所述目标上行信号配置的功率控制参数，直到接收到所述SRS资源指示信息为止。具体的，接收到该SRS资源指示信息后，就采用该SRS资源指示信息指示的SRS资源上发送SRS所用的功率控制参数来代替网络侧预先配置的值。
可选地，在本申请实施例中，所述终端设备根据所述SRS资源指示信息，确定所述目标上行信号的第一功率控制参数，包括：所述终端设备根据所述SRS资源指示信息以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数。
具体地，该终端设备可以根据该SRS资源指示信息指示的SRS资源对应的功率控制参数，以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数。可选地，该目标上行信号所用的上行多址方式为DFT-S-OFDM，或者循环前缀正交频分复用CP-OFDM。例如，如果该目标上行信号所用的上行多址方式为DFT-S-OFDM，则直接采用该SRS资源指示信息指示的功率控制参数作为目标上行信号的第一功率控制参数；如果该目标上行信号所用的上行多址方式为CP-OFDM，则在该SRS资源指示信息指示的功率控制参数上加上一定的偏移值，作为目标上行信号的第一功率控制参数。
可选地，在本申请实施例中，该终端设备根据该第一功率控制参数，确定该目标上行信号的发送功率，包括：该终端设备根据该第一功率控制参数和该网络设备为该目标上行信号预配置的第二功率控制参数，确定该目标上 行信号的发送功率。
例如，该第一功率控制参数可以包含确定发送功率所用的路损值，该第二功率控制参数可以包括开环功率控制参数和闭环功率控制参数。再例如，该第一功率控制参数可以包括开环功率控制参数，该第二功率控制参数可以包括闭环功率控制参数。再例如，该第一功率控制参数可以包括路损值和目标功率Po，该第二功率控制参数可以包括其他功控参数(例如路损因子a和闭环功率控制因子f(i))。
以PUSCH上行发送功率控制的计算公式为例：
如果终端设备在服务小区c的子帧i上发送PUSCH而不发送PUCCH，则该用户设备在服务小区c的子帧i发送PUSCH的功率PPUSCH，c(i)为：
Figure PCTCN2017090809-appb-000001
如果终端设备在服务小区c的子帧i上发送PUSCH并同时发送PUCCH，则该用户设备在服务小区c的子帧i发送PUSCH的功率PPUSCH，c(i)为：
Figure PCTCN2017090809-appb-000002
其中，MPUSCH，c(i)为PUSCH所占的RB数目；
PCMAX，c(i)为终端设备配置的在服务小区c上子帧i的最大发送功率，
Figure PCTCN2017090809-appb-000003
为PCMAX，c(i)的线性值；
Figure PCTCN2017090809-appb-000004
为子帧i发送的PUCCH发送功率的线性值；
P0_PUSCH，c(j)和αc(j)是终端设备通过高层信令确定的值；
PLc为终端设备测量得到的服务小区c到该终端设备的路径损耗值；
ΔTF，c(i)为终端设备根据该PUSCH发送的上行数据比特数和该PUSCH中包括的资源单元的个数的比值确定的值；
fc(i)为终端设备根据对该PUSCH的功率调整命令确定的值。
从上述公式中，可以看出如果第一功率控制参数为路径损耗值PLc，并且网络设备没有为其配置第二功率控制参数，那么终端设备只需要根据网络发送的SRS资源指示信息对应的路径损耗值以及默认的其他参数调整该PUSCH的上行发送功率。或者如果第一功率控制参数为路径损耗值PLc，网 络设备为其配置第二功率控制参数为fc(i)，那么终端设备就可以根据网络发送的SRS资源指示信息对应的路径损耗值、网络设备配置的fc(i)以及默认的其他参数调整该PUSCH的上行发送功率。
图3示出了本申请实施例的用于传输信号的方法200的示意性框图。如图3所示，该方法200包括：
S210，网络设备向终端设备发送与目标上行信号对应的SRS资源指示信息，该SRS资源指示信息用于该终端设备确定该目标上行信号的第一功率控制参数；
S220，该网络设备接收该终端设备基于该第一功率控制参数发送的该目标上行信号。
因此，本申请实施例的用于传输信号的方法，通过参考与网络设备发送的SRS资源指示信息对应的功率控制参数来确定目标上行信号的发送功率，有利于提高上行功率控制的准确性，从而能够提高系统传输的性能。
可选地，在本申请实施例中，该目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
可选地，在本申请实施例中，若该目标上行信号为物理上行共享信道PUSCH，该SRS资源指示信息承载于用于调度该PUSCH的下行控制信息DCI中；或若该目标上行信号为物理随机接入信道PRACH，该SRS资源指示信息承载于系统信息或高层信令中；或若该目标上行信号为探测参考信号SRS，该SRS资源指示信息承载于高层信令或下行控制信息DCI中。
可选地，在本申请实施例中，若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于用于指示该PUCCH资源的高层信令中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于携带传输功率控制TPC命令的下行控制信息DCI中，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于无线资源控制RRC信令或媒体接入控制MAC信令中。
可选地，在本申请实施例中，该第一功率控制参数包括以下信息中的至 少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
可选地，在本申请实施例中，该方法还包括：该网络设备向该终端设备发送配置信息，该配置信息用于指示至少一个探测参考信号SRS资源与至少一个功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
应理解，本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
应理解，网络设备描述的网络设备与终端设备之间的交互及相关特性、功能等与终端设备的相关特性、功能相应。并且相关内容在上述方法100中已经作了详尽描述，为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中详细描述了根据本申请实施例的用于传输信号的方法，下面将结合图4至图7，描述根据本申请实施例的用于传输信号的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图4示出了本申请实施例的终端设备300的示意性框图。如图4所示，该终端设备300包括：
第一确定单元310，用于确定与目标上行信号对应的探测参考信号SRS资源指示信息；
第二确定单元320，用于根据该SRS资源指示信息，确定该目标上行信号的第一功率控制参数；
第三确定单元330，用于根据该第一功率控制参数，确定该目标上行信号的发送功率；
发送单元340，用于根据该发送功率，向网络设备发送该目标上行信号。
因此，本申请实施例的终端设备，有利于提高功率控制的准确性，从而提高系统传输的性能。
可选地，在本申请实施例中，该目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
可选地，在本申请实施例中，该终端设备300还包括：第一接收单元，用于接收该网络设备发送的第一信息，该第一信息携带该SRS资源指示信息；该第一确定单元310具体用于：从该第一信息中，确定该SRS资源指示信息。
可选地，在本申请实施例中，若该目标上行信号为物理上行共享信道PUSCH，该第一信息为用于调度该PUSCH的下行控制信息DCI；或若该目标上行信号为物理随机接入信道PRACH，该第一信息为系统信息或高层信令；或若该目标上行信号为探测参考信号SRS，该第一信息为高层信令或下行控制信息DCI。
可选地，在本申请实施例中，若该目标上行信号为物理上行控制信道PUCCH，该第一信息为用于指示该PUCCH资源的高层信令；或
若该目标上行信号为物理上行控制信道PUCCH，该第一信息为该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为携带传输功率控制TPC命令的下行控制信息DCI，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该第一信息为无线资源控制RRC信令或媒体接入控制MAC信令。
可选地，在本申请实施例中，若该目标上行信号为物理上行控制信道PUCCH，该第一确定单元310具体用于：根据该PUCCH的格式，确定与该PUCCH的格式对应的SRS资源指示信息。
可选地，在本申请实施例中，若该目标上行信号为相位跟踪参考信号PTRS，该第一确定单元310具体用于：将与第一PUSCH对应的SRS资源指示信息确定为该PTRS对应的SRS资源指示信息，其中，用于解调该第一PUSCH的解调参考信号DMRS与该PTRS具有关联关系。
可选地，在本申请实施例中，该第二确定单元320具体用于：将该SRS资源指示信息指示的SRS资源对应的功率控制参数，确定为该目标上行信号的第一功率控制参数。
可选地，在本申请实施例中，该第一功率控制参数包括以下信息中的至 少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
可选地，在本申请实施例中，该终端设备300还包括：第二接收单元，用于接收该网络设备发送的配置信息，该配置信息用于指示至少一个SRS资源与至少一个功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
可选地，在本申请实施例中，该终端设备300还包括：第四确定单元，用于采用该网络设备预先配置的功率控制参数，确定该目标上行信号的发送功率。
可选地，在本申请实施例中，该第二确定单元320具体用于：根据该SRS资源指示信息以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数。
可选地，在本申请实施例中，该第二确定单元320具体用于：根据该SRS资源指示信息指示的SRS资源对应的功率控制参数，以及该目标上行信号所用的上行多址方式，确定该目标上行信号的第一功率控制参数。
可选地，在本申请实施例中，该目标上行信号所用的上行多址方式为离散傅里叶变换扩展正交频分复用DFT-S-OFDM，或者循环前缀正交频分复用CP-OFDM。
可选地，在本申请实施例中，该第三确定单元330具体用于：根据该第一功率控制参数和该网络设备为该目标上行信号预配置的第二功率控制参数，确定该目标上行信号的发送功率。
应理解，根据本申请实施例的终端设备300可对应于本申请方法实施例中的终端设备，并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图2方法中终端设备的相应流程，为了简洁，在此不再赘述。
图5示出了本申请实施例的网络设备400的示意性框图。如图5所示，该网络设备400包括：
第一发送单元410，用于向该终端设备发送与目标上行信号对应的SRS资源指示信息，该SRS资源指示信息用于该终端设备确定该目标上行信号的第一功率控制参数；
接收单元420，用于接收该终端设备基于该第一功率控制参数发送的该目标上行信号。
因此，本申请实施例的网络设备，有利于提高功率控制的准确性，从而提高系统传输的性能。
可选地，在本申请实施例中，该目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
可选地，在本申请实施例中，若该目标上行信号为物理上行共享信道PUSCH，该SRS资源指示信息承载于用于调度该PUSCH的下行控制信息DCI中；或若该目标上行信号为物理随机接入信道PRACH，该SRS资源指示信息承载于系统信息或高层信令中；或若该目标上行信号为探测参考信号SRS，该SRS资源指示信息承载于高层信令或下行控制信息DCI中。
可选地，在本申请实施例中，若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于用于指示该PUCCH资源的高层信令中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于该终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI中；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于携带传输功率控制TPC命令的下行控制信息DCI中，该TPC命令用于指示该PUCCH的闭环功率调整值；或若该目标上行信号为物理上行控制信道PUCCH，该SRS资源指示信息承载于无线资源控制RRC信令或媒体接入控制MAC信令中。
可选地，在本申请实施例中，该第一功率控制参数包括以下信息中的至少一种信息：用于计算该发送功率的路损值、用于测量用于计算该发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
可选地，在本申请实施例中，该网络设备400还包括：第二发送单元，用于向终端设备发送配置信息，该配置信息用于指示至少一个探测参考信号SRS资源与至少一个功率控制参数的对应关系，该至少一个SRS资源包括该SRS资源指示信息指示的SRS资源。
应理解，根据本申请实施例的网络设备400可对应于本申请方法实施例中的网络设备，并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图3方法中网络设备的相应流程，为了简洁，在此不再赘述。
如图6所示，本申请实施例还提供了一种终端设备500，该终端设备500可以是图4中的终端设备300，其能够用于执行与图2中方法100对应的终 端设备的内容。该终端设备500包括：输入接口510、输出接口520、处理器530以及存储器540，该输入接口510、输出接口520、处理器530和存储器540可以通过总线系统相连。该存储器540用于存储包括程序、指令或代码。该处理器530，用于执行该存储器540中的程序、指令或代码，以控制输入接口510接收信号、控制输出接口520发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的终端设备，通过参考与网络设备发送的SRS资源指示信息对应的功率控制参数来确定目标上行信号的发送功率，有利于提高上行功率控制的准确性，从而能够提高系统传输的性能。
应理解，在本申请实施例中，该处理器530可以是中央处理单元(Central Processing Unit，CPU)，该处理器530还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器540可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。存储器540的一部分还可以包括非易失性随机存取存储器。例如，存储器540还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器530中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器540，处理器530读取存储器540中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，终端设备300中的第一确定单元、第二确定单元、第三确定单元以及第四确定单元可以由图6中的处理器530实现，终端设备300的发送单元可以由图6中的输出接口520实现，终端设备300的第一接收单元和第二接收单元可以由图6中的输入接口510实现。
如图7所示，本申请实施例还提供了一种网络设备600，该网络设备600 可以是图5中的网络设备400，其能够用于执行与图3中方法200对应的网络设备的内容。该网络设备600包括：输入接口610、输出接口620、处理器630以及存储器640，该输入接口610、输出接口620、处理器630和存储器640可以通过总线系统相连。该存储器640用于存储包括程序、指令或代码。该处理器630，用于执行该存储器640中的程序、指令或代码，以控制输入接口610接收信号、控制输出接口620发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的网络设备，有利于提高功率控制的准确性，从而提高系统传输的性能。
应理解，在本申请实施例中，该处理器630可以是中央处理单元(Central Processing Unit，CPU)，该处理器630还可以是其他通用处理器、数字信号处理器(Digital Signal Processor，DSP)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
该存储器640可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。存储器640的一部分还可以包括非易失性随机存取存储器。例如，存储器640还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器630中的硬件的集成逻辑电路或者软件形式的指令完成。结合本申请实施例所公开的方法的内容可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器640，处理器630读取存储器640中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，网络设备400中的第一发送单元和第二发送单元可以由图7中的输出接口620实现，网络设备400中的接收单元可以由图7中的输入接口610实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结 合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机存取存储器(Random Access Memory，RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易 想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应该以权利要求的保护范围为准。

Claims (42)

  1. 一种用于传输信号的方法，其特征在于，包括：
    终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息；
    所述终端设备根据所述SRS资源指示信息，确定所述目标上行信号的第一功率控制参数；
    所述终端设备根据所述第一功率控制参数，确定所述目标上行信号的发送功率；
    所述终端设备根据所述发送功率，向网络设备发送所述目标上行信号。
  2. 根据权利要求1所述的方法，其特征在于，所述目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
  3. 根据权利要求1或2所述的方法，其特征在于，所述方法还包括：
    所述终端设备接收所述网络设备发送的第一信息，所述第一信息携带所述SRS资源指示信息；
    所述终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：
    所述终端设备从所述第一信息中，确定所述SRS资源指示信息。
  4. 根据权利要求3所述的方法，其特征在于，若所述目标上行信号为物理上行共享信道PUSCH，所述第一信息为用于调度所述PUSCH的下行控制信息DCI；或
    若所述目标上行信号为物理随机接入信道PRACH，所述第一信息为系统信息或高层信令；或
    若所述目标上行信号为探测参考信号SRS，所述第一信息为高层信令或下行控制信息DCI。
  5. 根据权利要求3所述的方法，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为用于指示所述PUCCH资源的高层信令；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为所述终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为携 带传输功率控制TPC命令的下行控制信息DCI，所述TPC命令用于指示所述PUCCH的闭环功率调整值；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为无线资源控制RRC信令或媒体接入控制MAC信令。
  6. 根据权利要求1或2所述的方法，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：
    所述终端设备根据所述PUCCH的格式，确定与所述PUCCH的格式对应的SRS资源指示信息。
  7. 根据权利要求1或2所述的方法，其特征在于，若所述目标上行信号为相位跟踪参考信号PTRS，所述终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息，包括：
    所述终端设备将与第一PUSCH对应的SRS资源指示信息确定为所述PTRS对应的SRS资源指示信息，其中，用于解调所述第一PUSCH的解调参考信号DMRS与所述PTRS具有关联关系。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述终端设备根据所述SRS资源指示信息，确定所述目标上行信号的第一功率控制参数，包括：
    所述终端设备将所述SRS资源指示信息指示的SRS资源对应的功率控制参数，确定为所述目标上行信号的第一功率控制参数。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述第一功率控制参数包括以下信息中的至少一种信息：用于计算所述发送功率的路损值、用于测量用于计算所述发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
  10. 根据权利要求1至9中任一项所述的方法，其特征在于，在所述终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，所述方法还包括：
    所述终端设备接收所述网络设备发送的配置信息，所述配置信息用于指示至少一个SRS资源与至少一个功率控制参数的对应关系，所述至少一个SRS资源包括所述SRS资源指示信息指示的SRS资源。
  11. 根据权利要求1至10中任一项所述的方法，其特征在于，在所述 终端设备确定与目标上行信号对应的探测参考信号SRS资源指示信息之前，所述方法还包括：
    所述终端设备采用所述网络设备预先配置的功率控制参数，确定所述目标上行信号的发送功率。
  12. 根据权利要求1至11中任一项所述的方法，其特征在于，所述终端设备根据所述SRS资源指示信息，确定所述目标上行信号的第一功率控制参数，包括：
    所述终端设备根据所述SRS资源指示信息以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数。
  13. 根据权利要求12所述的方法，其特征在于，所述终端设备根据所述SRS资源指示信息以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数，包括：
    所述终端设备根据所述SRS资源指示信息指示的SRS资源对应的功率控制参数，以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数。
  14. 根据权利要求12或13所述的方法，其特征在于，所述目标上行信号所用的上行多址方式为离散傅里叶变换扩展正交频分复用DFT-S-OFDM，或者循环前缀正交频分复用CP-OFDM。
  15. 根据权利要求1至14中任一项所述的方法，其特征在于，所述终端设备根据所述第一功率控制参数，确定所述目标上行信号的发送功率，包括：
    所述终端设备根据所述第一功率控制参数和所述网络设备为所述目标上行信号预配置的第二功率控制参数，确定所述目标上行信号的发送功率。
  16. 一种用于传输信号的方法，其特征在于，包括：
    网络设备向终端设备发送与目标上行信号对应的SRS资源指示信息，所述SRS资源指示信息用于所述终端设备确定所述目标上行信号的第一功率控制参数；
    所述网络设备接收所述终端设备基于所述第一功率控制参数发送的所述目标上行信号。
  17. 根据权利要求16所述的方法，其特征在于，所述目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道 PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
  18. 根据权利要求16或17所述的方法，其特征在于，若所述目标上行信号为物理上行共享信道PUSCH，所述SRS资源指示信息承载于用于调度所述PUSCH的下行控制信息DCI中；或
    若所述目标上行信号为物理随机接入信道PRACH，所述SRS资源指示信息承载于系统信息或高层信令中；或
    若所述目标上行信号为探测参考信号SRS，所述SRS资源指示信息承载于高层信令或下行控制信息DCI中。
  19. 根据权利要求16或17所述的方法，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于用于指示所述PUCCH资源的高层信令中；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于所述终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI中；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于携带传输功率控制TPC命令的下行控制信息DCI中，所述TPC命令用于指示所述PUCCH的闭环功率调整值；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于无线资源控制RRC信令或媒体接入控制MAC信令中。
  20. 根据权利要求16至19中任一项所述的方法，其特征在于，所述第一功率控制参数包括以下信息中的至少一种信息：用于计算所述发送功率的路损值、用于测量用于计算所述发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
  21. 根据权利要求16至20中任一项所述方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端设备发送配置信息，所述配置信息用于指示至少一个探测参考信号SRS资源与至少一个功率控制参数的对应关系，所述至少一个SRS资源包括所述SRS资源指示信息指示的SRS资源。
  22. 一种终端设备，其特征在于，所述终端设备包括：
    第一确定单元，用于确定与目标上行信号对应的探测参考信号SRS资源指示信息；
    第二确定单元，用于根据所述SRS资源指示信息，确定所述目标上行信号的第一功率控制参数；
    第三确定单元，用于根据所述第一功率控制参数，确定所述目标上行信号的发送功率；
    发送单元，用于根据所述发送功率，向网络设备发送所述目标上行信号。
  23. 根据权利要求22所述的终端设备，其特征在于，所述目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
  24. 根据权利要求22或23所述的终端设备，其特征在于，所述终端设备还包括：
    第一接收单元，用于接收所述网络设备发送的第一信息，所述第一信息携带所述SRS资源指示信息；
    所述第一确定单元具体用于：
    从所述第一信息中，确定所述SRS资源指示信息。
  25. 根据权利要求24所述的终端设备，其特征在于，若所述目标上行信号为物理上行共享信道PUSCH，所述第一信息为用于调度所述PUSCH的下行控制信息DCI；或
    若所述目标上行信号为物理随机接入信道PRACH，所述第一信息为系统信息或高层信令；或
    若所述目标上行信号为探测参考信号SRS，所述第一信息为高层信令或下行控制信息DCI。
  26. 根据权利要求24所述的终端设备，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为用于指示所述PUCCH资源的高层信令；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为所述终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为携带传输功率控制TPC命令的下行控制信息DCI，所述TPC命令用于指示所述PUCCH的闭环功率调整值；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述第一信息为无 线资源控制RRC信令或媒体接入控制MAC信令。
  27. 根据权利要求22或23所述的终端设备，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述第一确定单元具体用于：
    根据所述PUCCH的格式，确定与所述PUCCH的格式对应的SRS资源指示信息。
  28. 根据权利要求22或23所述的终端设备，其特征在于，若所述目标上行信号为相位跟踪参考信号PTRS，所述第一确定单元具体用于：
    将与第一PUSCH对应的SRS资源指示信息确定为所述PTRS对应的SRS资源指示信息，其中，用于解调所述第一PUSCH的解调参考信号DMRS与所述PTRS具有关联关系。
  29. 根据权利要求22至28中任一项所述的终端设备，其特征在于，所述第二确定单元具体用于：
    将所述SRS资源指示信息指示的SRS资源对应的功率控制参数，确定为所述目标上行信号的第一功率控制参数。
  30. 根据权利要求22至29中任一项所述的终端设备，其特征在于，所述第一功率控制参数包括以下信息中的至少一种信息：用于计算所述发送功率的路损值、用于测量用于计算所述发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
  31. 根据权利要求22至30中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    第二接收单元，用于接收所述网络设备发送的配置信息，所述配置信息用于指示至少一个SRS资源与至少一个功率控制参数的对应关系，所述至少一个SRS资源包括所述SRS资源指示信息指示的SRS资源。
  32. 根据权利要求22至31中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    第四确定单元，用于采用所述网络设备预先配置的功率控制参数，确定所述目标上行信号的发送功率。
  33. 根据权利要求22至32中任一项所述的终端设备，其特征在于，所述第二确定单元具体用于：
    根据所述SRS资源指示信息以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数。
  34. 根据权利要求33所述的终端设备，其特征在于，所述第二确定单元具体用于：
    根据所述SRS资源指示信息指示的SRS资源对应的功率控制参数，以及所述目标上行信号所用的上行多址方式，确定所述目标上行信号的第一功率控制参数。
  35. 根据权利要求33或34所述的终端设备，其特征在于，所述目标上行信号所用的上行多址方式为离散傅里叶变换扩展正交频分复用DFT-S-OFDM，或者循环前缀正交频分复用CP-OFDM。
  36. 根据权利要求22至35中任一项所述的终端设备，其特征在于，所述第三确定单元具体用于：
    根据所述第一功率控制参数和所述网络设备为所述目标上行信号预配置的第二功率控制参数，确定所述目标上行信号的发送功率。
  37. 一种网络设备，其特征在于，所述网络设备包括：
    第一发送单元，用于向所述终端设备发送与目标上行信号对应的SRS资源指示信息，所述SRS资源指示信息用于所述终端设备确定所述目标上行信号的第一功率控制参数；
    接收单元，用于接收所述终端设备基于所述第一功率控制参数发送的所述目标上行信号。
  38. 根据权利要求37所述的网络设备，其特征在于，所述目标上行信号为物理上行共享信道PUSCH、物理上行控制信道PUCCH、物理随机接入信道PRACH、相位跟踪参考信号PTRS或探测参考信号SRS。
  39. 根据权利要求37或38所述的网络设备，其特征在于，若所述目标上行信号为物理上行共享信道PUSCH，所述SRS资源指示信息承载于用于调度所述PUSCH的下行控制信息DCI中；或
    若所述目标上行信号为物理随机接入信道PRACH，所述SRS资源指示信息承载于系统信息或高层信令中；或
    若所述目标上行信号为探测参考信号SRS，所述SRS资源指示信息承载于高层信令或下行控制信息DCI中。
  40. 根据权利要求37或38所述的网络设备，其特征在于，若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于用于指示所述PUCCH资源的高层信令中；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于所述终端设备最近接收到的用于调度物理上行共享信道PUSCH的下行控制信息DCI中；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于携带传输功率控制TPC命令的下行控制信息DCI中，所述TPC命令用于指示所述PUCCH的闭环功率调整值；或
    若所述目标上行信号为物理上行控制信道PUCCH，所述SRS资源指示信息承载于无线资源控制RRC信令或媒体接入控制MAC信令中。
  41. 根据权利要求37至40中任一项所述的网络设备，其特征在于，所述第一功率控制参数包括以下信息中的至少一种信息：用于计算所述发送功率的路损值、用于测量用于计算所述发送功率的路损值的下行信号的信息、开环功率控制参数和闭环功率控制参数。
  42. 根据权利要求37至41中任一项所述的网络设备，其特征在于，所述网络设备还包括：
    第二发送单元，用于向终端设备发送配置信息，所述配置信息用于指示至少一个探测参考信号SRS资源与至少一个功率控制参数的对应关系，所述至少一个SRS资源包括所述SRS资源指示信息指示的SRS资源。
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