WO2018202096A1 - 传输数据的方法、终端设备和网络设备 - Google Patents

传输数据的方法、终端设备和网络设备 Download PDF

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Publication number
WO2018202096A1
WO2018202096A1 PCT/CN2018/085502 CN2018085502W WO2018202096A1 WO 2018202096 A1 WO2018202096 A1 WO 2018202096A1 CN 2018085502 W CN2018085502 W CN 2018085502W WO 2018202096 A1 WO2018202096 A1 WO 2018202096A1
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WIPO (PCT)
Prior art keywords
prg
reference signal
prgs
signal resource
terminal device
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Application number
PCT/CN2018/085502
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English (en)
French (fr)
Inventor
刘显达
刘鹍鹏
张瑞齐
李雪茹
Original Assignee
华为技术有限公司
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.)
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18795059.7A priority Critical patent/EP3598676B1/en
Publication of WO2018202096A1 publication Critical patent/WO2018202096A1/zh
Priority to US16/673,111 priority patent/US11139936B2/en

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    • 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
    • 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
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
    • H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
    • H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/0626—Channel coefficients, e.g. channel state information [CSI]
    • 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
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • 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

Definitions

  • the present application relates to the field and, more particularly, to a method of transmitting data, a terminal device, and a network device.
  • the Sounding Reference Signal is used by the base station to determine the uplink channel quality, thereby selectively scheduling the uplink transmission resources of the terminal device.
  • the terminal device performs precoding on a plurality of SRSs using different precoding matrices.
  • the base station After receiving and measuring the SRS, the base station needs to select a PRG for transmitting a Physical Uplink Shared Channel (PUSCH).
  • PUSCH Physical Uplink Shared Channel
  • the terminal device precodes the PUSCH by using the precoding matrix, and indicates the number of the SRS resource used by the SRS corresponding to the precoding matrix to the terminal device, so that the terminal device is transmitting In the uplink data, the PUSCH is precoded using the precoding matrix corresponding to the SRS transmitted on the SRS resource.
  • the terminal device When the terminal device transmits the PUSCH, the data on all physical resource blocks (PRBs) in a Precoding Resource Block Group (PRG) for transmitting the PUSCH needs to adopt the same precoding matrix. . Therefore, the base station needs to select a precoding matrix corresponding thereto for each PRG for the terminal device to precode the data transmitted on the PRG.
  • PRBs physical resource blocks
  • PRG Precoding Resource Block Group
  • the present application provides a method, a terminal device, and a network device for transmitting data, which can effectively select a precoding matrix used for transmitting a PUSCH on each PRG.
  • the first aspect provides a method for transmitting data, where the terminal device separately transmits at least one reference signal that is precoded on the at least one reference signal resource corresponding to the first precoding resource block group PRG, the at least one The different reference signals in the reference signal are subjected to the precoding using different precoding matrices, the first PRG is a PRG of a reference signal, the reference signal includes a sounding reference signal SRS; and the terminal device receives the reference signal resource indication information.
  • the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is the first one from the same location as the second PRG frequency domain At least one reference signal resource selected from the at least one reference signal resource corresponding to the PRG, where the second PRG is a PRG of a physical uplink shared channel PUSCH, and the size of the first PRG is equal to n times the size of the second PRG And n is a positive integer greater than 1 or greater than 1.
  • the terminal device sends the information on the second PRG according to the reference signal resource indication information.
  • Precoding the PUSCH the precoding matrix used by the PUSCH is determined according to a precoding matrix used by a reference signal transmitted on a reference signal resource corresponding to the second PRG.
  • the reference signal resource indication information is carried in a downlink control information DCI, a Media Access Control Control Element (MAC CE), or a Physical Downlink Shared Channel (PDSCH).
  • DCI Downlink control information
  • MAC CE Media Access Control Control Element
  • PDSCH Physical Downlink Shared Channel
  • the embodiment of the present application sets a plurality of first PRGs for transmitting reference signals, and the terminal device sends the reference signals precoded by using the corresponding precoding matrix in the first PRG, so that the network device can be based on the first PRG.
  • the transmitted reference signal effectively selects a precoding matrix used on the corresponding second PRG for transmitting the PUSCH.
  • the bandwidth supported by the terminal device or the frequency domain resource of the uplink transmission bandwidth of the entire system may be divided into multiple first PRGs including the first PRG, and at least one reference signal resource corresponding to the first PRG.
  • the at least one precoding matrix used by the transmitted at least one reference signal is at least partially different from the at least one precoding matrix used by the at least one reference signal transmitted on the at least one reference signal resource corresponding to the other first PRGs.
  • the other first PRG is a first PRG that is different from the first PRG frequency domain in the plurality of first PRGs, where the plurality of reference signal resources corresponding to the multiple second PRGs of the PUSCH are And selecting at least one reference signal resource selected from the plurality of reference signal resources corresponding to the plurality of first PRGs that are the same as the plurality of second PRG frequency domain locations.
  • the plurality of reference signal resources corresponding to the plurality of first PRGs correspond to configuration information of the same reference signal.
  • the precoding matrix used to transmit the reference signals is independent on each of the first PRGs. It can also be understood that the bandwidth currently available for transmitting the reference signal may include a plurality of first PRGs, a precoding matrix used by the reference signal transmitted on each first PRG, and transmitted on other first PRGs. The precoding matrix used by the reference signal may be different.
  • the transmission bandwidth of the PUSCH may include multiple second PRGs, and the precoding matrix used for transmitting the PUSCH on each second PRG is different, and the network The device needs a plurality of reference signal resource indication information to respectively indicate a precoding matrix used for transmitting the PUSCH on the plurality of second PRGs.
  • the network device is a reference signal resource used by indicating the reference signal corresponding to the pre-compiled matrix to the terminal device. Number to implement the indication of the precoding matrix.
  • the at least one precoding matrix used by the at least one reference signal sent on the first PRG, and the at least one reference signal sent on the other first PRG The at least one precoding matrix used is at least partially different, and the other first PRG is a first PRG that is different from the first PRG frequency domain in the plurality of first PRGs, where multiple The plurality of reference signal resources corresponding to the second PRG are at least one reference signal resource selected from a plurality of reference signal resources corresponding to the plurality of first PRGs that are the same as the plurality of second PRG frequency domain locations.
  • the size of the first PRG is equal to the size of the n second PRGs, and n is a positive integer. That is, the size of the first PRG is equal to an integral multiple of the size of the second PRG.
  • the precoding matrix for transmitting the PUSCH on all PRBs in the second PRG may be from the same set of precoding matrices (ie, The precoding matrix used in the reference signal transmitted on the first PRG is selected without signaling again.
  • the precoding matrix used for transmitting the PUSCH on different PRBs in a second PRG may be a precoding matrix used by different sets of precoding matrices (reference signals transmitted on different first PRGs respectively). The selection is made, so that further signaling is needed to indicate that the precoding matrices used for transmitting the PUSCH on all PRBs in the second PRG are the same.
  • the reference signal resource indication information is further used. And indicating a reference signal resource corresponding to the adjacent second PRG.
  • the network device only needs to indicate the reference signal resource corresponding to the second PRG with the smallest PRG number, and the reference signal resources corresponding to the second PRG adjacent to the second PRG in the n second PRGs may not be performed any longer.
  • the indication that is, the reference signal resource indication information used to indicate the reference signal resource corresponding to the adjacent second PRG may be omitted, which saves signaling overhead.
  • the reference signal resource corresponding to the second PRG with the largest PRG number may be indicated, and the reference signal resources corresponding to the second PRG with the smaller PRG number may be omitted, which is not limited herein.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the first PRG is a first PRG with a smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the second PRG Corresponding reference signal resources which are reference signal resources in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the m first PRGs, where m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG
  • the frequency domain start and stop position of the second PRG is the same as the frequency domain start and stop position of the RBG.
  • the first PRG includes an entire frequency band used by the terminal device to transmit the at least one reference signal.
  • the method before the terminal device sends the pre-coded PUSCH on the second PRG, the method further includes: the terminal device receiving resource configuration information,
  • the resource configuration information indicates a frequency domain resource used for transmitting the PUSCH, where the resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the number of bits used to indicate the bitmap of the PUSCH resource configuration information at this time depends on the bandwidth that can be used to transmit the reference signal instead of the total system bandwidth.
  • the bandwidth used for transmitting the reference signal is 4 RBGs
  • the system bandwidth is 10 RBGs
  • the number of bits of the bitmap used to indicate the PUSCH resource configuration information is 4.
  • the method before the sending, by the terminal device, the pre-coded at least one reference signal on the at least one reference signal resource corresponding to the first PRG, the method further includes: The terminal device receives the first indication information that is carried in the high layer signaling or the downlink control information DCI, where the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the terminal device sends a reference signal by using multiple reference signal processes, where the first PRG in each reference signal process The size is the same as or different from the size of the first PRG in the other reference signal process, and the reference signal resource corresponding to the second PRG indicates, by the signaling, the selected reference signal process in the multiple reference signal processes. At least one of at least one reference signal resource corresponding to a PRG.
  • the reference signal includes a sounding reference signal SRS.
  • a method for transmitting data the network device receiving, on the at least one reference signal resource corresponding to the first pre-coded resource block group PRG, at least one reference signal that is precoded, the at least one The different reference signals in the reference signal are subjected to the precoding using different precoding matrices, the first PRG is a PRG of a reference signal, the reference signal includes a sounding reference signal SRS; and the network device transmits a reference signal resource indication information.
  • the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is the first one from the same location as the second PRG frequency domain At least one reference signal resource selected from the at least one reference signal resource corresponding to the PRG, where the second PRG is a PRG of a physical uplink shared channel PUSCH, and the size of the first PRG is equal to n times the size of the second PRG , n is a positive integer greater than 1 or greater than 1; the network device receives a pre-coded PUSCH on the second PRG, and uses the pre-PUSCH
  • the coding matrix is determined according to a precoding matrix used by the reference signal transmitted on the reference signal resource corresponding to the second PRG.
  • the reference signal resource indication information is carried in the downlink control information DCI, the medium access control element MAC CE, or the physical downlink shared channel PDSCH.
  • the embodiment of the present application sets a plurality of first PRGs for transmitting reference signals, and the terminal device sends the reference signals precoded by using the corresponding precoding matrix in the first PRG, so that the network device can be based on the first PRG.
  • the transmitted reference signal effectively selects a precoding matrix used on the corresponding second PRG for transmitting the PUSCH.
  • the at least one precoding matrix used by the at least one reference signal sent on the first PRG, and the at least one reference signal sent on the other first PRG is at least partially different, and the other first PRG is a first PRG that is different from the first PRG frequency domain in the plurality of first PRGs, where multiple The plurality of reference signal resources corresponding to the second PRG are at least one reference signal resource selected from a plurality of reference signal resources corresponding to the plurality of first PRGs that are the same as the plurality of second PRG frequency domain locations.
  • the size of the first PRG is equal to the size of the n second PRGs, and n is a positive integer.
  • the reference signal resource indication information is further used. And indicating a reference signal resource corresponding to the adjacent second PRG.
  • the first PRG is a first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the second PRG Corresponding reference signal resources which are reference signal resources in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the m first PRGs, where m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG
  • the frequency domain start and stop position of the second PRG is the same as the frequency domain start and stop position of the RBG.
  • the first PRG includes an entire frequency band used by the terminal device to transmit a reference signal.
  • the method before the network device receives the pre-coded PUSCH on the second PRG, the method further includes: the network device sending resource configuration information And the resource configuration information indicates a frequency domain resource used for transmitting the PUSCH, where the resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the method before the network device receives the pre-coded at least one reference signal on the at least one reference signal resource corresponding to the first PRG, the method further includes: The network device sends first indication information that is carried in the high layer signaling or the downlink control information DCI, where the first indication information is used to indicate at least one of the following:
  • the multiple relationship k, k between the size of the first PRG, the size of the second PRG, and the size of the first PRG and the size of the second PRG is a positive integer.
  • the network device receives the at least one reference signal in a plurality of reference signal processes, where each reference signal process is in the process of each reference signal
  • the size of the first PRG is the same as or different from the size of the first PRG in the other reference signal process, and the reference signal resource corresponding to the second PRG is selected by signaling indication in the multiple reference signal processes.
  • the reference signal includes a sounding reference signal SRS.
  • a terminal device which can perform the operations of the terminal device in the above first aspect or any optional implementation manner of the first aspect.
  • the terminal device may comprise a modular unit for performing the operations of the terminal device in any of the possible implementations of the first aspect or the first aspect described above.
  • a network device which can perform the operations of the network device in any of the foregoing optional implementations of the second aspect or the second aspect.
  • the network device may comprise a modular unit for performing the operations of the network device in any of the possible implementations of the second aspect or the second aspect described above.
  • a terminal device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the terminal device to perform the method in the first aspect or any possible implementation manner of the first aspect, or the execution causes the terminal device to implement the terminal provided by the third aspect device.
  • a network device comprising: a processor, a transceiver, and a memory.
  • the processor, the transceiver, and the memory communicate with each other through an internal connection path.
  • the memory is for storing instructions for executing instructions stored by the memory.
  • the processor executes the instruction stored by the memory, the executing causes the network device to perform the method in any of the possible implementations of the second aspect or the second aspect, or the execution causes the network device to implement the network provided by the fourth aspect device.
  • a computer readable storage medium storing a program, the program causing the terminal device to perform the above first aspect, and any one of the various implementation manners of transmitting information Methods.
  • a computer readable storage medium storing a program causing a network device to perform the second aspect described above, and transmitting the information in any of the various implementations thereof Methods.
  • a system chip comprising an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The first aspect and any of its various implementations.
  • a system chip includes an input interface, an output interface, a processor, and a memory
  • the processor is configured to execute an instruction stored by the memory, and when the instruction is executed, the processor can implement the foregoing The second aspect and any of the various implementations.
  • FIG. 1 is a schematic structural diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of resources for transmitting SRS in the prior art.
  • FIG. 3 is a flow interaction diagram of a method for transmitting data according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of resources for transmitting SRS according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of resources for transmitting SRS according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of resources for transmitting SRS according to an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of a transmission SRS according to an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of transmitting SRS according to an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of a transmission SRS according to an embodiment of the present application.
  • FIG. 10 is a schematic flowchart of a transmission SRS according to an embodiment of the present application.
  • FIG. 11 is a schematic block diagram of a terminal device according to an embodiment of the present application.
  • FIG. 12 is a schematic block diagram of a network device according to an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a network device according to an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • FIG. 1 shows a schematic diagram of a communication system suitable for a method and apparatus for data transmission in accordance with an embodiment of the present application.
  • the communication system 100 includes a network device 102 that can include multiple antennas, such as antennas 104, 106, 108, 110, 112, and 114. Additionally, network device 102 may additionally include a transmitter chain and a receiver chain, as will be understood by those of ordinary skill in the art, which may include multiple components related to signal transmission and reception (eg, processor, modulator, multiplexer) , demodulator, demultiplexer or antenna, etc.).
  • 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
  • LTE-A Advanced Long Term Evolution
  • UMTS Universal Mobile Telecommunications System
  • 5G system can also be called a new radio access technology (NR) system.
  • NR new radio access technology
  • the network device 102 may be a Base Transceiver Station (BTS) in Global System for Mobile Communications (GSM) or Code Division Multiple Access (CDMA), or a base station (NodeB, in Wideband Code Division Multiple Access (WCDMA).
  • BTS Base Transceiver Station
  • GSM Global System for Mobile Communications
  • CDMA Code Division Multiple Access
  • NodeB base station
  • WCDMA Wideband Code Division Multiple Access
  • NB which may also be an evolved base station (evolutional node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station, an access point, or a Radio Radio Unit (RRU), or an in-vehicle device
  • evolutional node B evolutional node B, eNB or eNodeB
  • LTE Long Term Evolution
  • RRU Radio Radio Unit
  • the wearable device and the network side device in the future 5G system such as a transmission point (TP), a transmission reception point (TRP), a base station, a small base station device, etc., are not specifically limited in this embodiment of the present application. .
  • Network device 102 can communicate with a plurality of terminal devices, such as terminal device 116 and terminal device 122.
  • Network device 102 can communicate with any number of terminal devices similar to terminal device 116 or 122.
  • the terminal device 116 or 122 may also be referred to as a User Equipment (UE) user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, and a user terminal.
  • terminal wireless communication device, user agent or user device.
  • the terminal device may be a station (Station, ST) in a Wireless Local Area Network (WLAN), and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, or a wireless local loop (Wireless Local Loop).
  • WLAN Wireless Local Area Network
  • the terminal device in the 5G network or the terminal device in the publicly available Public Land Mobile network (PLMN) network in the future is not limited in this embodiment.
  • terminal device 116 is in communication with antennas 112 and 114, wherein antennas 112 and 114 transmit information to terminal device 116 over forward link 118 and receive information from terminal device 116 over reverse link 120.
  • terminal device 122 is in communication with antennas 104 and 106, wherein antennas 104 and 106 transmit information to terminal device 122 over forward link 124 and receive information from terminal device 122 over reverse link 126.
  • the forward link 118 can utilize a different frequency band than that used by the reverse link 120, and the forward link 124 can utilize the reverse link. 126 different frequency bands used.
  • FDD Frequency Division Duplex
  • the forward link 118 and the reverse link 120 can use a common frequency band, a forward link 124, and a reverse link.
  • Link 126 can use a common frequency band.
  • Each antenna (or set of antennas consisting of multiple antennas) and/or regions designed for communication is referred to as a sector of network device 102.
  • the antenna group can be designed to communicate with terminal devices in sectors of the network device 102 coverage area.
  • the transmit antenna of network device 102 may utilize beamforming to improve the signal to noise ratio of forward links 118 and 124.
  • the network device 102 uses beamforming to transmit signals to the randomly dispersed terminal devices 116 and 122 in the relevant coverage area, the network device 102 uses a single antenna to transmit signals to all of its terminal devices. Mobile devices are subject to less interference.
  • Network device 102, terminal device 116 or terminal device 122 may be a wireless communication transmitting device and/or a wireless communication receiving device.
  • the wireless communication transmitting device can encode the data for transmission.
  • the wireless communication transmitting device may acquire (eg, generate, receive from other communication devices, or store in memory, etc.) a certain number of data bits to be transmitted over the channel to the wireless communication receiving device.
  • Such data bits may be included in a transport block (or multiple transport blocks) of data that may be segmented to produce multiple code blocks.
  • the communication system 100 may be a public land mobile network (PLMN) network or a device to device (D2D) network or a Machine to Machine (M2M) network or other network, and FIG. 1 is only for easy understanding.
  • PLMN public land mobile network
  • D2D device to device
  • M2M Machine to Machine
  • FIG. 1 is only for easy understanding.
  • other network devices may also be included in the network, which are not shown in FIG.
  • the terminal device before transmitting the uplink data to the network device, the terminal device sends a Sounding Reference Signal (SRS) for the network device to determine the channel quality of the uplink channel.
  • SRS resource is a physical resource used for transmitting the SRS, such as an antenna port, a time-frequency resource, a power, and an encoding mode.
  • the SRS is transmitted on the last symbol in the configured subframe, and the SRS time-frequency resource used to transmit the SRS can be determined by at least one configuration parameter in Table 1.
  • the minimum detection bandwidth supported by LTE is 4 physical resource blocks, and the detection bandwidths supported by the system have an integer multiple relationship.
  • the terminal device measures and reports Channel State Information (CSI), and the CSI includes Precoding Matrix Indicators (PMI).
  • the PMI is used to indicate a precoding matrix used for physical downlink shared channel (PDSCH) transmission.
  • the PMI report is divided into a broadband PMI report and a sub-band PMI report.
  • the terminal device reports a PMI corresponding to the entire system bandwidth.
  • the terminal device reports multiple PMIs, which respectively correspond to the each sub-band.
  • the network device can also precode the downlink data transmitted on consecutive multiple PRBs using the same precoding matrix.
  • the protocol specifies that the terminal device can consider a fixed precoding matrix on each PRB in a Precoding Resource Block Group (PRG), that is, a pre-band in the frequency band corresponding to the PRG.
  • PRG Precoding Resource Block Group
  • the coding matrix does not change with frequency.
  • the network device indicates, by using downlink control information (DCI), the resource allocated to the terminal device to the terminal device, where the DCI is control information indicating that the network device in the physical layer indicates the behavior of the terminal device.
  • DCI downlink control information
  • the time-frequency resources occupied by the downlink data sent by the network device are indicated to the terminal device by DCI signaling in units of Resource Block Groups (RBGs).
  • RBGs Resource Block Groups
  • the RBG size is a function of system bandwidth and contains a set of consecutive PRBs. At this time, in order to match the granularity of the resource scheduling, the RBG size is an integer multiple of the PRG size, as shown in Table 2.
  • the UE may pre-code multiple SRSs that are sent by using multiple SRS resources according to the a priori channel information or the uplink and downlink channel reciprocity, and obtain a plurality of pre-coded SRSs (precoded SRSs).
  • the precoding matrix corresponding to the SRS transmitted using different SRS resources is different.
  • the network device receives and measures the multiple SRSs, and selects a precoding matrix for transmitting the PUSCH on each PRG according to a certain implementation algorithm, and indicates the number of the SRS resource used by the SRS corresponding to the precoding matrix to the terminal device.
  • the number of each SRS resource is indicated by the network device to the terminal device through RRC signaling.
  • Different common SRS resources correspond to different resource numbers, and the resource numbers are indicated by the network device to the terminal device through high layer signaling.
  • the high layer signaling is higher than the physical layer for indicating and controlling related terminal devices, for example, Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the network device If the terminal device needs to be scheduled to transmit the physical uplink shared channel (PUSCH), the network device indicates the SRS resource indication to the terminal device through SRS resource indication (SRI) signaling. After receiving the SRI in the DCI and successfully decoding, the terminal device determines a precoding matrix used by the SRS sent on the SRS resource indicated by the SRI, precoding the PUSCH according to the precoding matrix, and according to resource scheduling information in the DCI. The precoded PUSCH is transmitted.
  • SRI SRS resource indication
  • the network device determines the precoding matrix that the terminal device should use to transmit the uplink data by measuring the precoded SRS sent by the terminal device, and indicates to the terminal device through the SRI. .
  • the precoding matrix corresponding to the SRS transmitted on different subbands may be different.
  • the terminal device precodes the SRSs transmitted on PRB#0 and PRB#1 using precoding matrix #0 and precoding matrix #1, and one SRS uses precoding on PRB#0 and PRB#1.
  • Matrix #0 performs precoding, and another SRS performs precoding on PRB #0 and PRB #1 using precoding matrix #1; the terminal device uses precoding matrix #2 and precoding matrix #3 for resource block PRB#2 and The SRS transmitted on PRB#3 is precoded, one SRS is precoded on PRB#2 and PRB#3 using precoding matrix #2, and the other SRS is used on PRB#2 and PRB#3 using precoding matrix #3 Precoding is performed; the terminal device precodes the two SRSs transmitted on the resource blocks PRB#4 and PRB#5 using the precoding matrix #4 and the precoding matrix #5, and one SRS is used on PRB#4 and PRB#5. Precoding matrix #4 performs precoding, and another SRS performs precoding on PRB #4 and PRB #5 using precoding matrix #5.
  • the bandwidth used for transmitting the PUSCH may include multiple different PRGs, and the precoding matrix used for transmitting the PUSCH on each PRG is different, and the network device needs
  • the SRI signaling indicates the number of the corresponding SRS resource for the second PRG #0 and the second PRG #1, respectively, so that the terminal device can use the precoding matrix used by the SRS transmitted on the SRS resource corresponding to each PRG.
  • the PUSCH is precoded.
  • the precoding matrix used for transmitting the PUSCH on the PRB #0 and PRB #1 in the PRG #0 is the precoding matrix #0.
  • the precoding matrix for transmitting the PUSCH on the PRB #2 in the PRG #0 is one of the precoding matrix #2 and the precoding matrix #3.
  • the PUSCH transmitted on PRG#0 should be precoded using the same precoding matrix, that is, the PUSCH transmitted on PRB#0, PRB#1 and PRB#2 should use the same precoding matrix, thus causing the network device to When PRG #0 selects a precoding matrix for transmitting a PUSCH, it is necessary to select not only a precoding matrix that matches PRB #0 and PRB #1 in precoding matrix #0 and precoding matrix #1, but also a precoding matrix. In #2 and precoding matrix #3, a precoding matrix matching PRB#2 is selected.
  • the network device Since the precoding matrix matching PRB#0 and PRB#1 is not the same as the precoding matrix matched with PRB#2, the network device needs to introduce additional signaling when selecting the precoding matrix corresponding to PRG#0.
  • the selection of different precoding matrices is indicated, or the rules for selecting precoding matrices are defined. If additional indication signaling is added to indicate the selection of different precoding matrices, a large amount of signaling overhead is incurred.
  • a first PRG for a reference signal is proposed, and a PRG of the foregoing PUSCH is referred to as a second PRG, a first PRG is a PRG of a reference signal, and a second PRG is a PRG of a PUSCH.
  • the embodiment of the present application sets a plurality of first PRGs for transmitting reference signals, and the terminal device sends the reference signals pre-coded by using the corresponding precoding matrix in the first PRG, so that the network device can transmit according to the first PRG.
  • the reference signal effectively selects a precoding matrix used on the corresponding second PRG for transmitting the PUSCH.
  • the transmitting end is a network device, and the receiving end is a terminal device, that is, the network device can send downlink data to at least two terminal devices on the same time-frequency resource; or the transmitting end is a terminal device, and the receiving end is a network device. That is, at least two terminal devices can send uplink data to the same network device on the same time-frequency resource.
  • the network device may correspond to the network device 102 in FIG. 1, and the terminal device may be any one of a plurality of terminal devices communicatively connected to the network device, and may correspond to the terminal device 116 or the terminal in FIG. Device 122.
  • FIG. 3 is a schematic flowchart of a method for transmitting data according to an embodiment of the present application.
  • the terminal device in FIG. 3 may be any one of a plurality of terminal devices communicatively coupled to the network device, for example, may correspond to the terminal device 116 or the terminal device 122 in FIG.
  • the network device in FIG. 3 may correspond, for example, to network device 102 in FIG.
  • the method for transmitting data includes:
  • the terminal device sends the precoded at least one reference signal on the at least one reference signal resource corresponding to the first PRG.
  • the different reference signals in the at least one reference signal are used for performing the precoding using different precoding matrices, and the first PRG is a PRG for transmitting a reference signal.
  • the precoding matrix used by the reference signal transmitted in the frequency band corresponding to each first PRG does not change with the change of the frequency, and the bandwidth of the plurality of first PRGs is the same.
  • the terminal device may determine at least one precoding matrix corresponding to the first PRG according to the a priori channel information or the uplink and downlink channel reciprocity, and perform precoding on the at least one reference signal by using the at least one precoding matrix, respectively.
  • Different reference signals of the at least one reference signal are precoded using different precoding matrices, and different reference signals are transmitted on different reference signal resources of the first PRG.
  • the first PRG can be understood as a unit for precoding a reference signal, and is a plurality of consecutive numbers of the same precoding matrix PRB.
  • the reference signal may be a sounding reference signal SRS or the like.
  • the method further includes: the terminal device receiving the first indication information, where the first indication information is used to indicate at least one of the following:
  • the multiple of the first PRG, the size of the second PRG, and the multiple of the first PRG and the size of the second PRG, k is a positive integer greater than one.
  • the first indication information is carried in the high layer signaling or the downlink control information DCI.
  • the high layer signaling may be, for example, RRC signaling or Medium Access Control (MAC) control element (Control Elements, CE), and the MAC CE carries control information of the MAC layer.
  • MAC Medium Access Control
  • the size of the first PRG may be that the network device indicates to the terminal device by using the first indication information, or the terminal device may perform the measurement of the downlink reference signal by using the a priori channel information or the channel reciprocity.
  • the network device and the terminal device pre-agreed the size of the first PRG, so that the network device does not need to indicate to the terminal device by using the first indication information.
  • the network device may directly indicate the size of the first PRG, and may also indicate a relationship between the size of the first PRG and the size of the second PRG, for example, the network device indicates that the size of the first PRG is equal to the size of the second PRG. Then, the terminal device can acquire the size of the first PRG by using the size of the second PRG.
  • the frequency domain resources used by the terminal device to transmit the reference signal may be divided into a plurality of first PRGs including the first PRG. At least one precoding matrix used by the at least one reference signal transmitted on the first PRG is at least partially different from at least one precoding matrix used by at least one reference signal transmitted on the other first PRGs,
  • the other first PRG is a first PRG that is different from the first PRG frequency domain in the plurality of first PRGs.
  • the plurality of reference signal resources corresponding to the plurality of second PRGs of the PUSCH are selected from a plurality of reference signal resources corresponding to the plurality of first PRGs having the same location of the plurality of second PRG frequency domains. At least one reference signal resource.
  • the precoding matrix used to transmit the reference signals is independent on each of the first PRGs. It can also be understood that the bandwidth currently available for transmitting the reference signal may include a plurality of first PRGs, at least one precoding matrix used by the reference signal transmitted on each first PRG, and other first PRGs. The at least one precoding matrix used for the transmitted reference signal may be different.
  • the frequency domain resource supported by the terminal device or the uplink transmission bandwidth of the entire system may be divided into a plurality of consecutive first PRGs, and the consecutive plurality of first PRGs have the same size and do not overlap each other.
  • the bandwidth supported by the terminal device includes 48 PRBs, and the size of each first PRG is 6 PRBs, then the entire frequency band is divided into 8 first PRGs (PRB#0-PRB#5, PRB#6-PRB#) 10.
  • each first PRG includes consecutive identical numbers of PRBs
  • the reference signals transmitted on the PRBs in the frequency band corresponding to each of the first PRGs use the same precoding matrix
  • the reference signals transmitted on the PRBs in different frequency bands corresponding to the first PRG are precoded using different precoding matrices, for example, two reference signals transmitted on the frequency band of PRB#0-PRB#5 are respectively used.
  • the precoding matrix #0 and the precoding matrix #1 perform precoding, and the two reference signals transmitted on the frequency band of the PRB #6-PRB#11 are precoded using the precoding matrix #2 and the precoding matrix #3, respectively.
  • the two reference signals transmitted on the first PRG #0 respectively use the precoding matrix #0 and the precoding matrix #1, and the two reference signals transmitted on the first PRG #1 are respectively Precoding matrix #2 and precoding matrix #3 are used.
  • the reference signals transmitted on the first PRG #0 and the first PRG #1 are precoded using different precoding matrices.
  • one reference signal is precoded on the first PRG #0 using the precoding matrix #0, and precoded using the precoding matrix #2 on the first PRG #1; another reference The signal is precoded on the first PRG #0 using precoding matrix #1 and precoded on the first PRG #1 using precoding matrix #3.
  • the frequency domain resources supported by the terminal device or the uplink transmission bandwidth of the entire system may be divided into a plurality of consecutive second PRGs, and the consecutive plurality of second PRGs have the same size and do not overlap each other.
  • the bandwidth supported by the terminal device includes 48 PRBs, and the size of each second PRG is 3 PRBs, and then the entire frequency band is divided into 16 first PRGs (PRB#0-PRB#2, PRB#3-PRB#) 5.
  • each second PRG includes consecutive same number of PRBs, and the PUSCH transmitted on the PRBs in the frequency band corresponding to each second PRG uses the same precoding matrix Precoding is performed, and PUSCHs transmitted on PRBs in different frequency bands corresponding to the second PRG are precoded using different precoding matrices. For example, PUSCH transmitted on the frequency band of PRB#0-PRB#2 uses precoding matrix #0. Or precoding matrix #1 performs precoding, and PUSCH transmitted on the frequency band of PRB#3-PRB#5 is precoded using precoding matrix #2 or precoding matrix #3, followed by sequential.
  • the network device receives the precoded at least one reference signal on the at least one reference signal resource corresponding to the first PRG.
  • the different reference signals in the at least one reference signal are used for performing the precoding using different precoding matrices, and the first PRG is a PRG for transmitting a reference signal.
  • the method further includes: the network device sending the first indication information, where the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the first indication information is carried in the high layer signaling or the downlink control information DCI.
  • the network device transmits reference signal resource indication information.
  • the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG in the at least one reference signal resource, where the reference signal resource corresponding to the second PRG is from the second PRG And selecting at least one reference signal resource selected from the at least one reference signal resource corresponding to the first PRG in the same frequency domain.
  • the second PRG is a PRG for transmitting a physical uplink shared channel PUSCH.
  • the reference signal resource corresponding to the second PRG belongs to one or more of the at least one reference signal resource in the first PRG that is in the same location as the second PRG frequency domain.
  • the reference signal resource indication information is carried in the downlink control information DCI, the medium access control element MAC CE, or the physical downlink shared channel PDSCH.
  • the size of the first PRG is equal to n times the size of the second PRG, and n is a positive integer greater than 1 or greater than 1.
  • the reference signal resource corresponding to each second PRG indicated by the reference signal resource indication information is a reference signal resource in the at least one reference signal resource in the first PRG that is in the same position as the second PRG frequency domain.
  • the network device After receiving the at least one reference signal on the first PRG, the network device detects at least one reference signal, and selects a precoding matrix for transmitting the PUSCH for the second PRG, and uses a reference corresponding to the precoding matrix.
  • the number of the reference signal resource used by the signal is indicated to the terminal device, so that the terminal device pre-codes the PUSCH to be transmitted according to the precoding matrix used by the reference signal transmitted on the reference signal resource.
  • the transmission bandwidth of the PUSCH may include multiple second PRGs, and the precoding matrix for transmitting the PUSCH on each second PRG is different, and the network device
  • the multiple reference signal resource indication information is required to respectively indicate a precoding matrix used by the PUSCH to transmit the PUSCH, where the network device indicates the reference signal resource used by the reference signal corresponding to the precoding matrix to the terminal device. Number to implement an indication of the precoding matrix.
  • the reference signals transmitted on the two reference signal resources in the first PRG corresponding to the second PRG #0 respectively use the precoding matrix #0 and the precoding matrix #1
  • the second PRG# The reference signals transmitted on the two reference signal resources in the corresponding first PRG use precoding matrix #2 and precoding matrix #3, respectively.
  • the network device requires two SRI signaling, one SRI for the second PRG #0, a precoding matrix matching the second PRG #0 from the precoding matrix #0 and the precoding matrix #1, and another SRI for the second PRG #1 selects a precoding matrix that matches the second PRG #1 from the precoding matrix #2 and the precoding matrix #3.
  • the terminal device receives the reference signal resource indication information.
  • the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG in the at least one reference signal resource, where the second PRG is a PRG used to transmit the physical uplink shared channel PUSCH.
  • the reference signal resource indication information is carried in the downlink control information DCI, the medium access control element MAC CE, or the physical downlink shared channel PDSCH.
  • the network device detects the at least one reference signal, and selects the second PRG. Transmitting an encoding matrix of the data, and indicating a number of the reference signal resource for receiving the reference signal to the terminal device, after the terminal device receives the reference signal resource indication information, acquiring the at least one reference according to the reference signal resource indication information A reference signal resource corresponding to the second PRG in the signal resource.
  • the terminal device sends the pre-coded PUSCH on the second PRG according to the reference signal resource indication information.
  • the precoding matrix used by the PUSCH is determined according to a precoding matrix used by a reference signal sent on a reference signal resource corresponding to the second PRG.
  • the precoding matrix used by the PUSCH may be the same as the precoding matrix used by the reference signal transmitted on the reference signal resource corresponding to the second PRG. It may also be a precoding matrix related precoding matrix used by the reference signal transmitted on the reference signal resource corresponding to the second PRG.
  • the precoding matrix used by the reference signal transmitted on the reference signal resource corresponding to the second PRG is M
  • the precoding matrix used by the PUSCH may also be M, or may be precoding obtained by further processing M.
  • the matrix is for example a precoding matrix M*M1.
  • the precoding matrix used by the PUSCH is the same as the precoding matrix used by the reference signal transmitted on the reference signal resource corresponding to the second PRG.
  • the present application is not limited thereto, and the precoding matrix used by the PUSCH may be another precoding matrix related to a precoding matrix used by a reference signal transmitted on a reference signal resource corresponding to the second PRG.
  • the reference signal resources corresponding to the second PRG indicated by the different reference signal resource indication information are different, and thus the PUSCH transmitted on the different second PRGs may be precoded using different precoding matrices.
  • the terminal device acquires, according to the received reference signal resource indication information, a reference signal resource corresponding to the second PRG indicated by the reference signal resource indication information, so that the reference signal used according to the reference signal sent on the reference signal resource is used.
  • the coding matrix pre-codes the PUSCH to be transmitted, and transmits the pre-coded PUSCH to the network device.
  • the reference signal is an SRS
  • the terminal device receives the SRS resource indication SRI sent by the network device, and obtains the number of the SRS resource indicated by the SRI, and uses the precoding matrix corresponding to the SRS sent on the SRS resource to be transmitted.
  • the PUSCH is precoded.
  • the method further includes: receiving, by the terminal device, resource configuration information, where the resource configuration information indicates a frequency domain resource used for transmitting the PUSCH, where the resource configuration information is used by the terminal device An indication is made within a frequency band in which the at least one reference signal is transmitted.
  • the number of bits used to indicate the bitmap of the PUSCH resource configuration information at this time depends on the bandwidth that can be used to transmit the reference signal instead of the total system bandwidth.
  • the bandwidth used for transmitting the reference signal is 4 RBGs
  • the system bandwidth is 10 RBGs
  • the number of bits of the bitmap used to indicate the PUSCH resource configuration information is 4.
  • the resource configuration information sent by the network device to the terminal device for indicating the transmission resource of the PUSCH is indicated by the frequency band that the terminal device can use to transmit the reference signal to indicate the frequency band used for transmitting the PUSCH, instead of being indicated based on the entire system bandwidth.
  • the frequency band for transmitting the PUSCH can thus save signaling overhead.
  • the network device receives the precoded PUSCH on the second PRG.
  • the precoding matrix used by the PUSCH is determined according to a precoding matrix used by a reference signal sent on a reference signal resource corresponding to the second PRG.
  • the embodiment provides that the terminal device can transmit the precoded reference signal in the first PRG by setting the first PRG for transmitting the reference signal, so that the network device can effectively according to the reference signal transmitted on the first PRG.
  • a corresponding precoding matrix is determined for the second PRG used to transmit the PUSCH and no additional signaling overhead is added.
  • the method further includes: the network device sends resource configuration information, where the resource configuration information indicates a frequency band used for transmitting the PUSCH, where the resource configuration information is used by the terminal device to transmit the An indication is made within a frequency band of at least one reference signal.
  • the frequency band used for transmitting the PUSCH is indicated based on a frequency band that the terminal device can use to transmit the reference signal, instead of indicating the PUSCH for transmitting based on the entire system bandwidth.
  • the frequency band thus saving signaling overhead.
  • the first PRG is a PRG for transmitting a reference signal
  • the second PRG is a PRG for transmitting a PUSCH.
  • the reference signals transmitted in each of the first PRGs use the same set of precoding matrices, that is, precoding matrices corresponding to the first PRG.
  • the precoding matrix in the frequency range corresponding to the first PRG does not change with the frequency.
  • the size of the first PRG is equal to the size of the n second PRGs.
  • the n second PRGs corresponding to the first PRG include the second PRG of the foregoing 310 to 330, where n is a positive integer.
  • the size of the first PRG is equal to n times the size of the second PRG, and each first PRG corresponds to n second PRGs in the frequency domain, that is, a frequency band occupied by one first PRG and n second PRGs.
  • the occupied frequency bands are the same.
  • the precoding matrix for transmitting the PUSCH on all PRBs in the second PRG may be from the same set of precoding matrices (ie, The precoding matrix used in the reference signal transmitted on the first PRG is selected without signaling again.
  • the precoding matrix used for transmitting the PUSCH on different PRBs in a second PRG may be a precoding matrix used by different sets of precoding matrices (reference signals transmitted on different first PRGs respectively). The selection is made, so that further signaling is needed to indicate that the precoding matrices used for transmitting the PUSCH on all PRBs in the second PRG are the same.
  • the reference signal resource corresponding to the second PRG and the reference corresponding to the second PRG adjacent to the second PRG, in the n second PRGs that are the same as the location of the first PRG frequency domain The signal resources are the same, and the second PRG is the second PRG with the smallest or largest PRG number in the n second PRGs, and the reference signal resource indication information received by the terminal device in 320 is further used to indicate the adjacent The reference signal resource corresponding to the second PRG.
  • the network device only needs to indicate the reference signal resource corresponding to the second PRG with the smallest PRG number, and the reference signal resources corresponding to the second PRG adjacent to the second PRG in the n second PRGs may not be performed any longer.
  • the indication that is, the reference signal resource indication information used to indicate the reference signal resource corresponding to the adjacent second PRG may be omitted, which saves signaling overhead.
  • the reference signal resource corresponding to the second PRG with the largest PRG number may be indicated, and the reference signal resources corresponding to the second PRG with the smaller PRG number may be omitted, which is not limited herein.
  • PRG #1 and second PRG #3 the terminal device transmits the SRS encoded using the precoding matrix #0 and the precoding matrix #1 on the first PRG.
  • the reference signal resource corresponding to the second PRG #0 determined by the network device for the second PRG #0 is a reference signal resource for transmitting the SRS encoded by the precoding matrix #0; and the second PRG determined for the second PRG #1
  • the reference signal resource corresponding to #1 is also the reference signal resource of the SRS encoded by the precoding matrix #0; the reference signal resource corresponding to the second PRG#2 determined for the second PRG#2 is the transmission precoding matrix # 1 reference signal resource of the encoded SRS.
  • the network device may transmit reference signal resource indication information for the second PRG #1 to the terminal device to indicate the second PRG #0 and The same reference signal resource corresponding to the second PRG #1.
  • the n second PRGs corresponding to the first PRGs refer to that the n second PRGs occupy the same frequency band as the first PRGs.
  • the reference signals transmitted on the PRB #0 to PRB #5 are precoded using the precoding matrix #0 and the precoding matrix #1 corresponding to the first PRG.
  • the PUSCH transmitted on PRB #0 to PRB #3 uses the precoding matrix as the precoding matrix #0, and the PUSCH transmitted on PRB#4 to PRB#5 is used.
  • the precoding matrix is precoding matrix #1.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the m first PRGs corresponding to the second PRG include the first PRGs in the foregoing 310 to 330, and m is a positive integer.
  • the size of the second PRG is equal to m times the size of the first PRG, and each second PRG corresponds to m first PRGs in the frequency domain.
  • the reference signal resource corresponding to the second PRG may be one of at least one reference signal resource corresponding to a certain first PRG of the m first RPGs.
  • the first PRG in the foregoing 310 to 330 is the first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG.
  • the reference signal resource corresponding to the second PRG is a reference signal resource in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the m first PRGs, where m is a positive integer .
  • At least one reference signal resource corresponding to the first PRG with the smallest PRG number may be used to determine a reference signal resource corresponding to the second PRG. That is, the reference signal resource corresponding to the second PRG is determined in at least one reference signal resource corresponding to the first PRG with the smallest PRG number.
  • #2 and precoding matrix #3 perform the encoded SRS, and transmit the SRS encoded using the precoding matrix #4 and the precoding matrix #5 on the first PRG #2.
  • the network device When determining the reference signal resource corresponding to the second PRG #0, the network device first selects the first PRG with the smallest resource number in the first PRG #0, the first PRG #1, and the first PRG #3 (here, the first PRG) #0), then, in the at least one reference signal resource corresponding to the first PRG #0, the reference signal resource corresponding to the second PRG #0 is selected, that is, the SRS transmitted on the reference signal resource corresponding to the second PRG #0
  • the precoding matrix used is one of precoding matrix #0 and precoding matrix #1.
  • the m first PRGs corresponding to the second PRGs refer to that the m first PRGs occupy the same frequency band as the second PRGs.
  • the size of the first PRG is the same as the size of the second PRG, and a first PRG corresponds to a second PRG in the frequency domain.
  • FIG. 6 shows three first PRGs in one slot, the bandwidth of each first PRG is equal to the size of one second PRG, and each of the first PRGs includes 3 PRB.
  • the SRSs transmitted on the first PRG #0 are precoded using the precoding matrix #0 and the precoding matrix #1, and the SRSs transmitted on the first PRG #1 are preprocessed using the precoding matrix #2 and the precoding matrix #3.
  • the SRS transmitted on the first PRG #2 is precoded using the precoding matrix #4 and the precoding matrix #5.
  • the terminal device precodes the two SRSs separately using the precoding matrix #0 and the precoding matrix #1, and transmits the precoded two SRSs on the first PRG #0.
  • the network device measures the two SRSs, and selects a precoding matrix that best matches the second PRG#0 among the precoding matrices used by the two SRSs, so that the second PRG#
  • the number of the corresponding SRS resource (that is, the SRS resource used by the SRS corresponding to the precoding matrix) is indicated to the terminal device by the SRI, so that the terminal device performs the second according to the precoding matrix corresponding to the SRS using the SRS resource.
  • the PUSCH to be transmitted on PRG #0 is precoded.
  • the terminal device separately precodes the two SRSs using the precoding matrix #2 and the precoding matrix #3, and transmits the precoded two on the first PRG #1.
  • SRS SRS.
  • the network device measures the two SRSs, and selects a precoding matrix that best matches the second PRG#1 in the precoding matrix used by the two SRSs, so that the second PRG#
  • the number of the corresponding SRS resource (that is, the SRS resource used by the SRS corresponding to the precoding matrix) is indicated to the terminal device by the SRI, so that the terminal device performs the second according to the precoding matrix corresponding to the SRS using the SRS resource.
  • the PUSCH to be transmitted on PRG #1 is precoded.
  • the terminal device separately precodes the two SRSs using the precoding matrix #4 and the precoding matrix #5, and transmits the precoded two on the first PRG #2.
  • SRS SRS.
  • the network device measures the two SRSs, and selects a precoding matrix that best matches the second PRG#0 among the precoding matrices used by the two SRSs, so that the second PRG
  • the number of the corresponding SRS resource (that is, the SRS resource used by the SRS corresponding to the precoding matrix) is indicated by the SRI to the terminal device, so that the terminal device can use the precoding matrix corresponding to the SRS using the SRS resource.
  • the PUSCH to be transmitted on the second PRG #2 is precoded.
  • precoding matrix used by the same reference signal for transmission on the first PRG #0, the first PRG #1, and the first PRG #2 may be different.
  • each first PRG in FIG. 6 is equal to the bandwidth of one second PRG, and thus the precoding matrix used by the SRS transmitted on different PRBs in each second PRG is the same, and the network device only needs to be in the precoding matrix.
  • 0 and precoding matrix #1 select a corresponding precoding matrix for PUSCH transmission for the second PRG #0, and select corresponding precoding for the second PRG #1 in precoding matrix #2 and precoding matrix #3
  • the matrix is used for transmission of uplink data, and a corresponding precoding matrix is selected for the second PRG #2 in the precoding matrix #4 and the precoding matrix #5 for transmission of uplink data.
  • the precoding matrices used by the PUSCH transmitted on all PRBs in a second PRG are the same. Therefore, the network device can effectively select an appropriate precoding matrix for data transmitted on different second PRGs.
  • the reference signal sent by the terminal device on the first PRG may occupy all PRBs in the first PRG, or part of the PRBs in the first PRG are distributed in the first PRG, for example, according to a certain density.
  • the relationship between the size of the RBG and the size of the first PRG or the second PRG may be, for example, as shown in Table 2 above.
  • the resource diagram of the SRS transmission shown in FIG. 6 the first PRG #0 includes PRB #0, PRB #1, and PRB #2, and the last symbol of the slot, PRB #0 in the first PRG #0 SRS is transmitted on both PRB#1 and PRB#2, and the SRS transmitted on the first PRG#0 is precoded using precoding matrix #0 and precoding matrix #1.
  • the resource diagram of the SRS transmission shown in FIG. 7 shows three first PRGs in one slot, and the bandwidth of each first PRG is equal to the size of one second PRG, and each of the first PRGs includes 4
  • the PRB and SRS have a density of 1/4 in the frequency domain.
  • the first PRG #0 includes PRB #0, PRB #1, PRB #2, and PRB #3, and in the last symbol of the slot, among PRB #0, PRB #1, PRB #2, and PRB #3, only There is a PRB that transmits SRS on PRB#2;
  • the first PRG#1 includes PRB#4, PRB#5, PRB#6, and PRB#7, and only one PRB, that is, PRS#5 transmits SRS;
  • the first PRG#2 Including PRB #8, PRB #9, PRB #10, and PRB #11, only one PRB, that is, PRS #9, transmits SRS.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG
  • the frequency domain start and stop position of the second PRG is the same as the frequency domain start and stop position of the RBG.
  • the frequency domain of the P first PRGs starts and ends.
  • the location is the same as the frequency domain start and stop location of the Q second PRGs, and the frequency bands occupied by the P first PRGs may be the same as the frequency bands occupied by the Q second PRGs.
  • the first PRG comprises an entire frequency band that the terminal device can use to transmit the at least one reference signal.
  • the bandwidth that can be used to transmit the at least one reference signal includes only one first PRG, and the precoding matrix used by the reference signal does not follow the frequency in the entire frequency band in which the first PRG can be used to transmit the reference signal.
  • Change and change. The terminal device precodes the at least one reference signal using at least one precoding matrix in the entire bandwidth for transmitting the reference signal and transmits the at least one reference signal to the network device on the at least one reference signal resource.
  • the reference signal resource corresponding to each second PRG is respectively indicated to the terminal device, where the reference signal resource corresponding to each second PRG may be different from the reference signal resource corresponding to the other second PRGs.
  • the reference signal resource corresponding to each second PRG is one of the at least one reference signal resource.
  • the first PRG includes an entire frequency band used by the terminal device to transmit the reference signal, and the terminal device sends the six precodings using the precoding matrix #0 to the precoding matrix #5 to the network device in the reference signal resource corresponding to the first PRG.
  • the matrix performs precoding on the six SRSs, and the six SRSs respectively use different SRS resources, and the reference signal resources corresponding to the second PRG #0, the second PRG #1 and the second PRG #2, and the other second precoding matrix are used. They are all selected among the six reference signal resources.
  • the respective precoding matrices used by the PUSCH transmitted by the terminal device in the second PRG #0, the second PRG #1, and the second PRG #2 are one of the precoding matrix #0 to the precoding matrix #5.
  • the terminal device sends the at least one reference signal by using a plurality of reference signal processes (hereinafter referred to as “processes”), in which the size of the first PRG in each reference signal process, and The size of the first PRG in other reference signal processes is the same or different.
  • processs a plurality of reference signal processes
  • the reference signal resource corresponding to the second PRG is at least one of at least one reference signal resource corresponding to the first PRG of the selected reference signal process in the multiple reference signal processes.
  • the reference signal process corresponds to a field of high-level signaling
  • the reference signal process includes configuration parameters of one or more sets of reference signals, where each set of configuration parameters corresponds to one reference signal, and the configuration of the reference signal process is a network.
  • the device indicates to the terminal device through the RRC.
  • the reference signal contained in each reference signal process can be considered to be transmitted from a specific antenna group or antenna panel.
  • the configuration parameter may be, for example, at least one of the configuration parameters shown in Table 1.
  • a schematic diagram of multiple reference signal processes shown in FIG. 9 may be used by a terminal device to transmit a reference signal to a network device through four antenna panels, that is, four reference signal processes.
  • the size of the first PRG used to transmit the reference signal in each reference signal process may not be exactly the same, and the density of the transmitted SRS may not be exactly the same.
  • the first PRG in process #0 includes 12 PRBs
  • the first PRG in process #1 includes 4 PRBs
  • the first PRG in process #2 includes 4 PRBs, in process #3.
  • the first PRG includes 2 PRBs.
  • the network device may select one or more of the plurality of reference signal processes according to the current channel state or other factors. For example, if the channel state changes drastically, the network device may select a smaller one in the first PRG of the multiple processes. A PRG. As shown in FIG. 10, the network device selects the first PRG #0 in the process #3 that is in the same location as the second PRG frequency domain.
  • the precoding matrix used by the SRS transmitted on the reference signal resource corresponding to the second PRG #0 may be the precoding matrix #0 corresponding to the first PRG #0 of the process #3; the reference signal resource corresponding to the second PRG #1
  • the network device can select a larger first PRG among the first PRGs of the plurality of processes. As shown in FIG. 10, the network device selects the first PRG #0 of process #0.
  • the precoding matrix used by the SRS transmitted on the reference signal resources corresponding to the second PRG #0 to the second PRG #5 is the precoding matrix #0 corresponding to the first PRG #0 of the process #0.
  • the process of transmitting the reference signal and the PUSCH on each of the multiple processes may refer to the process of transmitting the reference signal and the PUSCH described in any one of the foregoing embodiments. That is, the descriptions in 310 to 360 can be applied independently to each process for transmitting the reference signal and the PUSCH.
  • 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. 11 is a schematic block diagram of a terminal device 1100 according to an embodiment of the present application. As shown in FIG. 11, the terminal device 1100 includes a transmitting unit 1110 and a receiving unit 1120. among them:
  • the transmitting unit 1110 is configured to respectively send, according to the at least one reference signal resource corresponding to the first pre-coded resource block group PRG, the pre-coded at least one reference signal, where different reference signals in the at least one reference signal use different pre-
  • the encoding matrix performs the precoding, the first PRG is a PRG of a reference signal, and the reference signal includes a sounding reference signal SRS;
  • the receiving unit 1120 is configured to receive reference signal resource indication information, where the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is At least one reference signal resource selected from the at least one reference signal resource corresponding to the first PRG in the second PRG frequency domain, the second PRG being a PRG of a physical uplink shared channel PUSCH;
  • the sending unit 1110 is further configured to: send, according to the reference signal resource indication information, a pre-coded PUSCH on the second PRG, where the precoding matrix used by the PUSCH is based on a reference signal corresponding to the second PRG The precoding matrix used by the reference signal transmitted on the resource is determined.
  • the embodiment of the present application sets a plurality of first PRGs for transmitting reference signals, and the terminal device sends the reference signals precoded by using the corresponding precoding matrix in the first PRG, so that the network device can be based on the first PRG.
  • the transmitted reference signal effectively selects a precoding matrix used on the corresponding second PRG for transmitting the PUSCH.
  • the size of the first PRG is equal to the size of n second PRGs, and n is a positive integer.
  • the reference signal resource indication information is further used to indicate a reference signal corresponding to the adjacent second PRG. Resources.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the first PRG is a first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the reference signal resources corresponding to the second PRG are the m
  • the reference signal resource in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the first PRG, m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG of the terminal device, and the frequency domain start and stop position of the second PRG starts and ends with the frequency domain of the RBG of the terminal device.
  • the location is the same.
  • the first PRG includes an entire frequency band used by the terminal device to transmit the at least one reference signal.
  • the receiving unit 1120 is further configured to: before the sending unit 1110 sends the pre-coded PUSCH on the second PRG, receive resource configuration information, where the resource configuration information indicates that the A frequency domain resource of the PUSCH, wherein the resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the receiving unit 1120 is further configured to: before the sending, by the sending unit 1110, the pre-coded at least one reference signal on the at least one reference signal resource corresponding to the first PRG, receive the bearer in the high layer signaling or First indication information in the downlink control information DCI, the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the terminal device sends a reference signal by using multiple reference signal processes, in which the size of the first PRG in each reference signal process is the first among other reference signal processes.
  • the reference signal resources corresponding to the second PRG are in the at least one reference signal resource corresponding to the first PRG of the selected reference signal process by signaling in the multiple reference signal processes. at least one.
  • the reference signal comprises a sounding reference signal SRS.
  • FIG. 12 is a schematic block diagram of a network device 1200 in accordance with an embodiment of the present application. As shown in FIG. 12, the network device 1200 includes a receiving unit 1210 and a transmitting unit 1220. among them:
  • the receiving unit 1210 is configured to receive, according to the at least one reference signal resource corresponding to the first pre-coded resource block group PRG, at least one reference signal that is precoded, where different reference signals in the at least one reference signal use different pre-
  • the encoding matrix performs the precoding, the first PRG is a PRG of a reference signal, and the reference signal includes a sounding reference signal SRS;
  • the sending unit 1220 is configured to: send reference signal resource indication information, where the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is At least one reference signal resource selected from the at least one reference signal resource corresponding to the first PRG in the second PRG frequency domain, the second PRG being a PRG of a physical uplink shared channel PUSCH;
  • the receiving unit 1210 is further configured to: receive, on the second PRG, a pre-coded PUSCH, where the precoding matrix used by the PUSCH is used according to a reference signal sent on a reference signal resource corresponding to the second PRG.
  • the precoding matrix is determined.
  • the embodiment of the present application sets a plurality of first PRGs for transmitting reference signals, and the terminal device sends the reference signals precoded by using the corresponding precoding matrix in the first PRG, so that the network device can be based on the first PRG.
  • the transmitted reference signal effectively selects a precoding matrix used on the corresponding second PRG for transmitting the PUSCH.
  • the size of the first PRG is equal to the size of n second PRGs, and n is a positive integer.
  • the reference signal resource indication information is further used to indicate a reference signal corresponding to the adjacent second PRG. Resources.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the first PRG is a first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the reference signal resources corresponding to the second PRG are the m
  • the reference signal resource in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the first PRG, m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG of the terminal device, and the frequency domain start and stop position of the second PRG starts and ends with the frequency domain of the RBG of the terminal device.
  • the location is the same.
  • the first PRG includes an entire frequency band used by the network device to receive a reference signal.
  • the sending unit 1220 is further configured to: before the receiving unit 1210 receives the pre-coded PUSCH on the second PRG, send resource configuration information, where the resource configuration information is used to transmit The frequency domain resource of the PUSCH, wherein the resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the sending unit 1220 is further configured to: before the receiving, by the receiving unit 1210, the pre-coded at least one reference signal on the at least one reference signal resource corresponding to the first PRG, send the bearer in the high layer signaling or First indication information in the downlink control information DCI, the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the network device receives the at least one reference signal in a plurality of reference signal processes, in the plurality of reference signal processes, a size of a first PRG in each reference signal process, and other reference signals
  • the first PRGs in the process are the same or different in size
  • the reference signal resources corresponding to the second PRG indicate at least one of the first PRGs corresponding to the selected reference signal process by signaling in the multiple reference signal processes. At least one of the reference signal resources.
  • the reference signal comprises a sounding reference signal SRS.
  • FIG. 13 is a schematic structural diagram of a terminal device 1300 according to an embodiment of the present application.
  • the terminal device includes a processor 1310, a transceiver 1320, and a memory 1330, wherein the processor 1310, the transceiver 1320, and the memory 1330 communicate with each other through an internal connection path.
  • the memory 1330 is configured to store instructions for executing the instructions stored by the memory 1330 to control the transceiver 1320 to receive signals or transmit signals.
  • the transceiver 1320 is configured to:
  • the precoding Transmitting, by the precoding, at least one reference signal on the at least one reference signal resource corresponding to the first precoding resource block group PRG, where different reference signals in the at least one reference signal use different precoding matrices to perform the pre Encoding, the first PRG is a PRG of a reference signal, and the reference signal includes a sounding reference signal SRS;
  • the reference signal resource indication information is used to indicate a reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is from the second PRG frequency domain location At least one reference signal resource selected from the at least one reference signal resource corresponding to the first PRG, the second PRG is a PRG of a physical uplink shared channel PUSCH, and the size of the first PRG is equal to a second n times the size of PRG, n is a positive integer greater than 1 or greater than 1;
  • the size of the first PRG is equal to the size of n second PRGs, and n is a positive integer.
  • the reference signal resource indication information is further used to indicate a reference signal corresponding to the adjacent second PRG. Resources.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the first PRG is a first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the reference signal resources corresponding to the second PRG are the m
  • the reference signal resource in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the first PRG, m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG of the terminal device, and the frequency domain start and stop position of the second PRG starts and ends with the frequency domain of the RBG of the terminal device.
  • the location is the same.
  • the first PRG includes an entire frequency band used by the terminal device to transmit the at least one reference signal.
  • the transceiver 1320 is further configured to: before the pre-coded PUSCH is sent on the second PRG, receive resource configuration information, where the resource configuration information indicates a frequency domain resource used for transmitting the PUSCH, The resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the transceiver 1320 is further configured to: before transmitting the precoded at least one reference signal on the at least one reference signal resource corresponding to the first PRG, receive the bearer in the high layer signaling or the downlink control information DCI.
  • First indication information the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the terminal device sends a reference signal by using multiple reference signal processes, in which the size of the first PRG in each reference signal process is the first among other reference signal processes.
  • the reference signal resources corresponding to the second PRG are in the at least one reference signal resource corresponding to the first PRG of the selected reference signal process by signaling in the multiple reference signal processes. at least one.
  • the reference signal comprises a sounding reference signal SRS.
  • the processor 1310 may be a central processing unit (CPU), and the processor 1310 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1330 can include read only memory and random access memory and provides instructions and data to the processor 1310. A portion of the memory 1330 can also include a non-volatile random access memory. For example, the memory 1330 can also store information of the device type.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1310 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1310.
  • 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 1330, and the processor 1310 reads the information in the memory 1330 and performs the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the terminal device 1300 may correspond to the terminal device for performing the method 300 in the foregoing method 300, and the terminal device 1100 according to the embodiment of the present application, and each unit or module in the terminal device 1300 is used for The operations or processes performed by the terminal device in the above method 300 are performed.
  • each unit or module in the terminal device 1300 is used for The operations or processes performed by the terminal device in the above method 300 are performed.
  • detailed description thereof will be omitted.
  • FIG. 14 is a schematic structural diagram of a network device 1400 according to an embodiment of the present application.
  • the network device includes a processor 1410, a transceiver 1420, and a memory 1430, wherein the processor 1410, the transceiver 1420, and the memory 1430 communicate with each other through an internal connection path.
  • the memory 1430 is configured to store instructions for executing the instructions stored by the memory 1430 to control the transceiver 1420 to receive signals or transmit signals.
  • the transceiver 1420 is configured to:
  • the precoded at least one reference signal wherein different reference signals in the at least one reference signal use different precoding matrices to perform the pre Encoding
  • the first PRG is a PRG of a reference signal
  • the reference signal includes a sounding reference signal SRS
  • the reference signal resource indication information is used to indicate the reference signal resource corresponding to the second PRG, where the reference signal resource corresponding to the second PRG is from the second PRG frequency domain location At least one reference signal resource selected from the at least one reference signal resource corresponding to the first PRG, the second PRG is a PRG of a physical uplink shared channel PUSCH, and the size of the first PRG is equal to a second n times the size of PRG, n is a positive integer greater than 1 or greater than 1;
  • the size of the first PRG is equal to the size of n second PRGs, and n is a positive integer.
  • the reference signal resource indication information is further used to indicate a reference signal corresponding to the adjacent second PRG. Resources.
  • the size of the second PRG is equal to the size of the m first PRGs.
  • the first PRG is a first PRG with the smallest or largest PRG number in the m first PRGs corresponding to the second PRG
  • the reference signal resources corresponding to the second PRG are the m
  • the reference signal resource in the at least one reference signal resource corresponding to the first PRG with the smallest or largest PRG number in the first PRG, m is a positive integer.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the n second PRGs.
  • the frequency domain start and stop position of the first PRG is the same as the frequency domain start and stop position of the resource block group RBG of the terminal device, and the frequency domain start and stop position of the second PRG starts and ends with the frequency domain of the RBG of the terminal device.
  • the location is the same.
  • the first PRG includes an entire frequency band used by the network device to receive a reference signal.
  • the transceiver 1420 is further configured to: before the pre-coded PUSCH is received on the second PRG, send resource configuration information, where the resource configuration information indicates a frequency domain resource used to transmit the PUSCH The resource configuration information is indicated in a frequency band used by the terminal device to transmit the at least one reference signal.
  • the transceiver 1420 is further configured to send the bearer in the high layer signaling or the downlink control information DCI before receiving the precoded at least one reference signal on the at least one reference signal resource corresponding to the first PRG.
  • First indication information the first indication information is used to indicate at least one of the following:
  • a size k of the first PRG a size of the second PRG, and a multiple k between the size of the first PRG and the size of the second PRG.
  • the network device receives the at least one reference signal in a plurality of reference signal processes, in the plurality of reference signal processes, a size of a first PRG in each reference signal process, and other reference signals
  • the first PRGs in the process are the same or different in size
  • the reference signal resources corresponding to the second PRG indicate at least one of the first PRGs corresponding to the selected reference signal process by signaling in the multiple reference signal processes. At least one of the reference signal resources.
  • the reference signal comprises a sounding reference signal SRS.
  • the processor 1410 may be a central processing unit (CPU), and the processor 1410 may also be other general-purpose processors, digital signal processors (DSPs), and application specific integrated circuits. (ASIC), off-the-shelf programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and more.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 1430 can include read only memory and random access memory and provides instructions and data to the processor 1410. A portion of the memory 1430 can also include a non-volatile random access memory. For example, the memory 1430 can also store information of the device type.
  • each step of the above method may be completed by an integrated logic circuit of hardware in the processor 1410 or an instruction in a form of software.
  • the steps of the positioning method disclosed in the embodiment of the present application may be directly implemented by the hardware processor, or may be performed by a combination of hardware and software modules in the processor 1410.
  • 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 1430, and the processor 1410 reads the information in the memory 1430 and, in conjunction with its hardware, performs the steps of the above method. To avoid repetition, it will not be described in detail here.
  • the network device 1400 may correspond to the network device for performing the method 600 in the foregoing method 600, and the network device 1200 according to the embodiment of the present application, and each unit or module in the network device 1400 is used for respectively The operations or processes performed by the network device in the above method 600 are performed.
  • each unit or module in the network device 1400 is used for respectively The operations or processes performed by the network device in the above method 600 are performed.
  • detailed description thereof will be omitted.
  • FIG. 15 is a schematic structural diagram of a system chip according to an embodiment of the present application.
  • the system chip 1500 of FIG. 15 includes an input interface 1501, an output interface 1502, at least one processor 1503, and a memory 1504.
  • the input interface 1501, the output interface 1502, the processor 1503, and the memory 1504 are interconnected by an internal connection path.
  • the processor 1503 is configured to execute code in the memory 1504.
  • the processor 1503 can implement the method 300 performed by the terminal device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • the processor 1503 can implement the method 300 performed by the network device in the method embodiment.
  • the processor 1503 can implement the method 300 performed by the network device in the method embodiment. For the sake of brevity, it will not be repeated here.
  • 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 the methods described in 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. .

Abstract

本申请提供了一种传输数据的方法、终端设备和网络设备，该方法包括：终端设备在第一PRG对应的至少一个参考信号资源上发送经预编码的至少一个参考信号，不同的参考信号使用不同的预编码矩阵，第一PRG为传输参考信号的PRG；终端设备接收资源指示信息，该资源指示信息指示该至少一个参考信号资源中与第二PRG对应的参考信号资源，第二PRG为传输物理上行共享信道PUSCH的PRG；终端设备根据该资源指示信息在该第二PRG上发送经预编码的PUSCH，该PUSCH使用的预编码矩阵为该第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵。从而能够有效地选择第二PRG上用于传输PUSCH所采用的预编码矩阵。

Description

传输数据的方法、终端设备和网络设备
本申请要求于2017年05月05日提交中国专利局、申请号为201710312975.1、申请名称为“传输数据的方法、终端设备和网络设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及领域，并且更具体地，涉及一种传输数据的方法、终端设备和网络设备。
背景技术
探测参考信号(Sounding Reference Signal，SRS)用于基站确定上行信道质量，从而对终端设备进行上行传输资源进行选择性调度。在上行传输过程中，终端设备会对多个SRS使用不同的预编码矩阵进行预编码，基站接收并测量SRS后，需要为用于传输物理上行共享信道(Physical Uplink Shared Channel，PUSCH)的PRG选择对应的预编码矩阵，以便于终端设备使用该预编码矩阵对该PUSCH进行预编码，并向终端设备指示该预编码矩阵对应的SRS所使用的SRS资源的编号(index)，从而终端设备在发送上行数据时，使用该SRS资源上发送的SRS所对应的预编码矩阵，对PUSCH进行预编码。
终端设备发送PUSCH时，用于传输该PUSCH的一个预编码资源块组(Precoding Resource block Group，PRG)内所有的物理资源块(Physical Resource Block，PRB)上的数据都需要采用相同的预编码矩阵。因此，基站需要为每个PRG选择与其对应的预编码矩阵，以用于终端设备对该PRG上传输的数据进行预编码。
由于不同PRG上传输的PUSCH所采用的预编码矩阵可能不同，因此，如何有效地选择每个PRG上用于传输PUSCH所采用的预编码矩阵，是急需解决的问题。
发明内容
本申请提供一种传输数据的方法、终端设备和网络设备，能够有效地选择每个PRG上用于传输PUSCH所采用的预编码矩阵。
第一方面，提供了一种传输数据的方法，包括：终端设备在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；所述终端设备接收参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；所述终端设备根据所述参考信号资源指示信息，在所述第二 PRG上发送经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
可选地，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素(Media Access Control Control Element，MAC CE)或物理下行共享信道(Physical Downlink Shared Channel，PDSCH)中。
因此，本申请实施例设置用于传输参考信号的多个第一PRG，终端设备通过在第一PRG中发送使用相应预编码矩阵进行预编码后的参考信号，使得网络设备能够根据第一PRG上传输的参考信号，有效地选择其对应的第二PRG上用于传输PUSCH所采用的预编码矩阵。
应理解，终端设备支持的带宽或整个系统的上行传输带宽的频域资源可以被划分为为包括该第一PRG在内的多个第一PRG，该第一PRG对应的至少一个参考信号资源上传输的至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG对应的至少一个参考信号资源上传输的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同。所述其他第一PRG为多个第一PRG中，与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
还应理解，所述多个第一PRG对应的多个参考信号资源对应相同的参考信号的配置信息。
也就是说，在多个第一PRG中，传输参考信号所使用的预编码矩阵在每个第一PRG上是独立的。也可以理解为，当前能够用于发送参考信号所使用的带宽可以包括多个第一PRG，每个第一PRG上传输的该参考信号所使用的预编码矩阵，与其他第一PRG上传输的该参考信号所使用的预编码矩阵可以不相同。
还应理解，网络设备向终端设备指示用于传输PUSCH的预编码矩阵时，PUSCH的发送带宽中可以包括多个第二PRG，每个第二PRG上用于传输PUSCH的预编码矩阵不同，网络设备需要多个参考信号资源指示信息分别指示多个第二PRG上传输PUSCH所使用的预编码矩阵，这里，网络设备是通过向终端设备指示该预编矩阵对应的参考信号所使用的参考信号资源的编号，来实现对该预编码矩阵的指示。
可选地，在第一方面的一种实现方式中，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，在第一方面的一种实现方式中，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。即所述第一PRG的大小等于第二PRG的大小的整数倍。
因此，由于第一PRG的大小等于第二PRG的大小的整数倍，使得第二PRG中的所有的PRB上用于传输PUSCH的预编码矩阵，都可以从相同的一组预编码矩阵中(即第一PRG上传输的参考信号所使用的预编码矩阵中)进行选择，而无需信令再次指示。
而现有技术中，一个第二PRG中不同PRB上用于传输PUSCH的预编码矩阵，可能是分别从不同的几组预编码矩阵(不同第一PRG上传输的参考信号所使用的预编码矩阵)中进行选择，因而后续还需要其他信令进行指示以使得该第二PRG中所有PRB上用于传输PUSCH的预编码矩阵均相同。
可选地，在第一方面的一种实现方式中，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
因此，网络设备只需要指示PRG编号最小的第二PRG对应的参考信号资源即可，这n个第二PRG中的与该第二PRG相邻的第二PRG对应的参考信号资源可以不再进行指示，即用于指示该相邻第二PRG对应的参考信号资源的参考信号资源指示信息可以省略，节省了信令开销。当然，也可以只指示PRG编号最大的第二PRG对应的参考信号资源，而省略其他PRG编号较小的二PRG对应的参考信号资源，这里不做限定。
可选地，在第一方面的一种实现方式中，所述第二PRG的大小等于m个第一PRG的大小。
可选地，在第一方面的一种实现方式中，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
进一步地，可选地，第一PRG的频域起止位置与资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述RBG的频域起止位置相同。
可选地，在第一方面的一种实现方式中，所述第一PRG包括所述终端设备用于传输所述至少一个参考信号的整个频带。
可选地，在第一方面的一种实现方式中，在所述终端设备在所述第二PRG上发送经过预编码的PUSCH之前，所述方法还包括：所述终端设备接收资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
应理解，此时用于指示该PUSCH资源配置信息的位图(bitmap)的比特个数取决于能够用于传输参考信号的带宽而不是总系统带宽。例如，用于传输参考信号的带宽为4个RBG，而系统带宽为10个RBG，此时用于指示PUSCH资源配置信息的位图的比特数为4。
可选地，在第一方面的一种实现方式中，在所述终端设备在第一PRG对应的至少一个参考信号资源上，发送经过预编码的至少一个参考信号之前，所述方法还包括：所述终端设备接收承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
可选地，在第一方面的一种实现方式中，所述终端设备使用多个参考信号进程发送参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，在第一方面的一种实现方式中，所述参考信号包括探测参考信号SRS。
第二方面，提供了一种传输数据的方法，包括：网络设备在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别接收经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；所述网络设备发送参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；所述网络设备在所述第二PRG上，接收经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
可选地，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
因此，本申请实施例设置用于传输参考信号的多个第一PRG，终端设备通过在第一PRG中发送使用相应预编码矩阵进行预编码后的参考信号，使得网络设备能够根据第一PRG上传输的参考信号，有效地选择其对应的第二PRG上用于传输PUSCH所采用的预编码矩阵。
可选地，在第二方面的一种实现方式中，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，在第二方面的一种实现方式中，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。
可选地，在第二方面的一种实现方式中，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
可选地，在第二方面的一种实现方式中，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信 号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
进一步地，可选地，第一PRG的频域起止位置与资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述RBG的频域起止位置相同。
可选地，在第二方面的一种实现方式中，所述第一PRG包括所述终端设备用于传输参考信号的整个频带。
可选地，在第二方面的一种实现方式中，在所述网络设备在所述第二PRG上，接收经过预编码的PUSCH之前，所述方法还包括：所述网络设备发送资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
可选地，在第二方面的一种实现方式中，在所述网络设备在第一PRG对应的至少一个参考信号资源上，接收经过预编码的至少一个参考信号之前，所述方法还包括：所述网络设备发送承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为正整数。
可选地，在第二方面的一种实现方式中，所述网络设备接收多个参考信号进程中的所述至少一个参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，在第二方面的一种实现方式中，所述参考信号包括探测参考信号SRS。
第三方面，提供了一种终端设备，该终端设备可以执行上述第一方面或第一方面的任意可选的实现方式中的终端设备的操作。具体地，该终端设备可以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终端设备的操作的模块单元。
第四方面，提供了一种网络设备，该网络设备可以执行上述第二方面或第二方面的任意可选的实现方式中的网络设备的操作。具体地，该网络设备可以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网络设备的操作的模块单元。
第五方面，提供了一种终端设备，该终端设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。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。当该处理器执行该存储器存储的指令时，该执行使得该终端设备执行第一方面或第一方面的任意可能的实现方式中的方法，或者该执行使得该终端设备实现第三方面提供的终端设备。
第六方面，提供了一种网络设备，该网络设备包括：处理器、收发器和存储器。其中，该处理器、收发器和存储器之间通过内部连接通路互相通信。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。当该处理器执行该存储器存储的指令时，该执行使得该网络设备执行第二方面或第二方面的任意可能的实现方式中的方法，或者该执行使得该网络设备实现第四方面提供的网络设备。
第七方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序， 所述程序使得终端设备执行上述第一方面，及其各种实现方式中的任一种传输信息的方法。
第八方面，提供了一种计算机可读存储介质，所述计算机可读存储介质存储有程序，所述程序使得网络设备执行上述第二方面，及其各种实现方式中的任一种传输信息的方法。
第九方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第一方面及其各种实现方式中的任一种方法。
第十方面，提供了一种系统芯片，该系统芯片包括输入接口、输出接口、处理器和存储器，该处理器用于执行该存储器存储的指令，当该指令被执行时，该处理器可以实现前述第二方面及其各种实现方式中的任一种方法。
附图说明
图1是本申请实施例的一种应用场景的示意性架构图。
图2是现有技术中传输SRS的资源示意图。
图3是本申请实施例的传输数据的方法的流程交互图。
图4是本申请实施例的传输SRS的资源示意图。
图5是本申请实施例的传输SRS的资源示意图。
图6是本申请实施例的传输SRS的资源示意图。
图7是本申请实施例的传输SRS的流程示意图。
图8是本申请实施例的传输SRS的流程示意图。
图9是本申请实施例的传输SRS的流程示意图。
图10是本申请实施例的传输SRS的流程示意图.
图11是本申请实施例的终端设备的示意性框图。
图12是本申请实施例的网络设备的示意性框图。
图13是本申请实施例的终端设备的示意性结构图。
图14是本申请实施例的网络设备的示意性结构图。
图15是本申请实施例的系统芯片的示意性结构图。
具体实施方式
下面将结合附图，对本申请实施例中的技术方案进行描述。
为便于理解本申请实施例，首先结合图1详细说明适用于本申请实施例的通信系统。图1示出了适用于本申请实施例的用于数据传输的方法和装置的通信系统的示意图。如图1所示，该通信系统100包括网络设备102，网络设备102可包括多个天线例如，天线104、106、108、110、112和114。另外，网络设备102可附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。
应理解，本申请的技术方案可以应用于各种通信系统，例如：全球移动通信(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)、长期演进(LTE)系统、先进的长期演进(LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)或下一代通信系统(例如，第五代通信(Fifth-generation，5G)系统)等。其中，5G系统也可以称为新一代无线接入技术(new radio access technology，NR)系统。
应理解，网络设备102可以是全球移动通信(GSM)或码分多址(CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(WCDMA)中的基站(NodeB，NB)，还可以是长期演进(LTE)中的演进型基站(evolutional node B，eNB或eNodeB)，或者中继站、接入点或射频拉远单元(Remote Radio Unit，RRU)，或者车载设备、可穿戴设备以及未来5G系统中的网络侧设备，如传输点(Transmission point，TP)、发送接收点(Transmission reception point，TRP)、基站、小基站设备等，本申请实施例对此并未特别限定。
网络设备102可以与多个终端设备(例如终端设备116和终端设备122)通信。网络设备102可以与类似于终端设备116或122的任意数目的终端设备通信。
应理解，终端设备116或122也可以称为用户设备(User Equipment，UE)用户设备、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。终端设备可以是无线局域网(Wireless localAarea Networks，WLAN)中的站点(Station，ST)，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)设备、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、可穿戴设备以及下一代通信系统，例如，5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile network，PLMN)网络中的终端设备等，本申请实施例对此并未特别限定。
如图1所示，终端设备116与天线112和114通信，其中天线112和114通过前向链路118向终端设备116发送信息，并通过反向链路120从终端设备116接收信息。此外，终端设备122与天线104和106通信，其中天线104和106通过前向链路124向终端设备122发送信息，并通过反向链路126从终端设备122接收信息。
例如，在频分双工(Frequency Division Duplex，FDD)系统中，例如，前向链路118可利用与反向链路120所使用的不同频带，前向链路124可利用与反向链路126所使用的不同频带。
再例如，在时分双工(Time Division Duplex，TDD)系统和全双工(full duplex)系统中，前向链路118和反向链路120可使用共同频带，前向链路124和反向链路126可使用共同频带。
被设计用于通信的每个天线(或者由多个天线组成的天线组)和/或区域称为网络设备102的扇区。例如，可将天线组设计为与网络设备102覆盖区域的扇区中的终端设备通信。在网络设备102通过前向链路118和124分别与终端设备116和122进行通信的过程中，网络设备102的发射天线可利用波束成形来改善前向链路118和124的信噪比。此外，与网络设备通过单个天线向它所有的终端设备发送信号的方式相比，在网络设备102利用 波束成形向相关覆盖区域中随机分散的终端设备116和122发送信号时，相邻小区中的移动设备会受到较少的干扰。
网络设备102、终端设备116或终端设备122可以是无线通信发送装置和/或无线通信接收装置。当发送数据时，无线通信发送装置可对数据进行编码以用于传输。具体地，无线通信发送装置可获取(例如生成、从其它通信装置接收、或在存储器中保存等)要通过信道发送至无线通信接收装置的一定数目的数据比特。这种数据比特可包含在数据的传输块(或多个传输块)中，传输块可被分段以产生多个码块。
此外，该通信系统100可以是公共陆地移动网络(PLMN)网络或者设备对设备(Device to Device，D2D)网络或者机器对机器(Machine to Machine，M2M)网络或者其他网络，图1仅为便于理解而示例的简化示意图，网络中还可以包括其他网络设备，图1中未予以画出。
在长期演进(Long Term Evolution，LTE)系统中，终端设备向网络设备发送上行数据之前，会发送探测参考信号(Sounding Reference Signal，SRS)，以用于网络设备确定上行信道的信道质量。SRS资源为发送SRS所使用的物理资源，如天线端口、时频资源、功率、编码方式等。通常，SRS在已配置的子帧中的最后一个符号上发送，并且发送SRS所使用的SRS时频资源可以由表1中的至少一个配置参数决定。LTE支持的最小探测带宽为4个物理资源块，而且系统支持的几种探测带宽之间具有整数倍的关系。
表一
Figure PCTCN2018085502-appb-000001
对于下行传输，终端设备测量并上报信道状态信息(Channel State Information，CSI)，该CSI中包括预编码矩阵指示(Precoding Matrix Indicators，PMI)。PMI用于指示物理下 行链路共享信道(Physical Downlink Shared Channel，PDSCH)传输所使用的预编码矩阵。PMI上报分为宽带的PMI上报和子带的PMI上报。当终端设备被配置为宽带的PMI上报时，终端设备上报一个PMI，对应于整个系统带宽。当终端设备被配置为子带的PMI上报时，终端设备上报多个PMI，分别对应于所述每个子带。网络设备也可以对连续多个PRB上传输的下行数据使用相同的预编码矩阵进行预编码。在这种情况下，协议中规定终端设备可以认为一个预编码资源块组(Precoding Resource block Group，PRG)内的每个PRB上都采用固定的预编码矩阵，即该PRG对应的频带内的预编码矩阵不会随着频率的变化而变化。
另外，在资源分配中，网络设备通过下行控制信息(Download Control Information，DCI)向终端设备指示分配给终端设备的资源，DCI是物理层中网络设备指示终端设备行为的控制信息。网络设备发送的下行数据所占用的时频资源以资源块组(Resource Block Group，RBG)为单位，通过DCI信令指示给终端设备。RBG大小是系统带宽的函数，包含了一组连续的PRB。此时，为了与资源调度的粒度相一致，RBG大小的是PRG大小的整数倍，例如表二所示。
表二
系统带宽 子带大小 RBG大小 PBG大小
<10 4 1 1
11-26 4 2 2
27-63 6 3 3
64-110 8 4 2
而对于上行传输，UE可以根据先验信道信息或者上下行信道互易性，对使用多个SRS资源发送的多个SRS进行预编码，得到多个预编码后的SRS(precoded SRS)。使用不同SRS资源传输的SRS所对应的预编码矩阵是不同的。网络设备接收并测量该多个SRS，并基于一定的实现算法选择出每个PRG上用于传输PUSCH的预编码矩阵，并将该预编码矩阵对应的SRS所使用SRS资源的编号指示给终端设备，每个SRS资源的编号由网络设备通过RRC信令指示给终端设备。不同共同SRS资源均对应不同的资源编号，该资源编号由网络设备通过高层信令指示给终端设备。高层信令是高于物理层的用于控制和管理相关终端设备的指示信息，例如，无线资源控制(Radio Resource Control，RRC)信令。
如果此时需要调度该终端设备进行物理上行共享信道PUSCH的传输，网络设备将该SRS资源的编号，通过SRS资源指示(SRS resource indication，SRI)信令指示给终端设备。终端设备接收DCI中的该SRI并成功译码之后，确定该SRI指示的SRS资源上发送的SRS所使用的预编码矩阵，根据该预编码矩阵对PUSCH进行预编码并根据DCI中的资源调度信息发送预编码后的该PUSCH。
在新无线(New Radio，NR)系统或称5G系统中，网络设备通过测量终端设备发送的预编码后的SRS，确定终端设备传输上行数据应当采用的预编码矩阵，并通过SRI指示给终端设备。其中，在终端设备发送经过预编码的SRS时，不同子带上传输的SRS所对 应的预编码矩阵可以是不同的。如图2所示，终端设备使用预编码矩阵#0和预编码矩阵#1对PRB#0和PRB#1上发送的SRS进行预编码，一个SRS在PRB#0和PRB#1上使用预编码矩阵#0进行预编码，另一个SRS在PRB#0和PRB#1上使用预编码矩阵#1进行预编码；终端设备使用预编码矩阵#2和预编码矩阵#3对资源块PRB#2和PRB#3上发送的SRS进行预编码，一个SRS在PRB#2和PRB#3上使用预编码矩阵#2进行预编码，另一个SRS在PRB#2和PRB#3上使用预编码矩阵#3进行预编码；终端设备使用预编码矩阵#4和预编码矩阵#5对资源块PRB#4和PRB#5上发送的两个SRS进行预编码，一个SRS在PRB#4和PRB#5上使用预编码矩阵#4进行预编码，另一个SRS在PRB#4和PRB#5上使用预编码矩阵#5进行预编码。
网络设备指示终端设备用于传输PUSCH的预编码矩阵时，用于发送PUSCH的带宽内可以包括多个不同的PRG，每个PRG上用于传输该PUSCH所使用的预编码矩阵不同，网络设备需要通过SRI信令分别针对第二PRG#0和第二PRG#1指示各自对应的SRS资源的编号，以便于终端设备根据每个PRG对应的SRS资源上传输的SRS所使用的预编码矩阵，对PUSCH进行预编码。
如图2所示，网络设备选择PRG#0上用于传输PUSCH的预编码矩阵时，PRG#0中的PRB#0和PRB#1上用于传输PUSCH的预编码矩阵为预编码矩阵#0和预编码矩阵#1中的一个，PRG#0中的PRB#2上用于传输PUSCH的预编码矩阵为预编码矩阵#2和预编码矩阵#3中的一个。由于PRG#0上传输的PUSCH应当使用相同的预编码矩阵进行预编码，即PRB#0、PRB#1和PRB#2上传输的PUSCH应当使用相同的预编码矩阵，这样就导致网络设备在为PRG#0选择用于传输PUSCH的预编码矩阵时，不仅需要在预编码矩阵#0和预编码矩阵#1中选择与PRB#0和PRB#1匹配的预编码矩阵，还要在预编码矩阵#2和预编码矩阵#3中选择与PRB#2匹配的预编码矩阵。
由于与PRB#0、PRB#1匹配的预编码矩阵，和与PRB#2匹配的预编码矩阵并不相同，网络设备在选择与PRG#0对应的预编码矩阵时，就需要额外引入信令对不同预编码矩阵的选择进行指示，或者定义选择预编码矩阵的规则。如果增加额外的指示信令对不同预编码矩阵的选择进行指示，会带来大量的信令开销。
应理解，本申请实施例中提出针对参考信号的第一PRG，而将上述的PUSCH的PRG称为第二PRG，第一PRG为参考信号的PRG，第二PRG为PUSCH的PRG。
本申请实施例设置用于传输参考信号的多个第一PRG，终端设备通过在第一PRG中发送使用相应预编码矩阵进行预编码后的参考信号，使得网络设备能够根据第一PRG上传输的参考信号，有效地选择其对应的第二PRG上用于传输PUSCH所采用的预编码矩阵。
下面结合图3至图9详细说明本申请实施例的传输数据的方法。应理解，这些例子只是为了帮助本领域技术人员更好地理解本申请实施例，而非限制本申请实施例的范围。应理解，发送端为网络设备，接收端为终端设备，即，网络设备可以在相同的时频资源上向至少两个终端设备发送下行数据；或者，发送端为终端设备，接收端为网络设备，即，至少两个终端设备可以在相同的时频资源上向同一网络设备发送上行数据。
以下，不失一般性，以网络设备与终端设备之间的数据传输过程为例来说明本申请实施例的数据传输的方法。应理解，该网络设备可以对应于图1中的网络设备102，该终端设备可以为与该网络设备通信连接的多个终端设备中的任意一个，可以对应于图1中的终 端设备116或者终端设备122。
图3为本申请实施例的传输数据的方法的示意性流程图。图3中的终端设备可以为与该网络设备通信连接的多个终端设备中的任意一个，例如可以对应于图1中的终端设备116或者终端设备122。图3中的网络设备例如可以对应于图1中的网络设备102。如图3所示，该传输数据的方法包括：
在310中，终端设备在第一PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号。
其中，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为用于传输参考信号的PRG。每个第一PRG对应的频带内传输的参考信号所采用的预编码矩阵是不随频率的变化而变化的，且多个第一PRG的频带带宽大小均相同。
具体地，终端设备可以根据先验信道信息或者上下行信道互易性，确定与第一PRG对应的至少一个预编码矩阵，并使用该至少一个预编码矩阵分别对至少一个参考信号进行预编码，该至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行预编码，并且不同的参考信号在该第一PRG的不同参考信号资源上传输。
应理解，第一PRG可以理解为用于对参考信号进行预编码的单位，为多个连续的采用相同预编码矩阵PRB的个数。
可选地，该参考信号可以为探测参考信号SRS等。
可选地，在310之前，该方法还包括：终端设备接收第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为1或者大于1的正整数。
进一步地，可选地，所述第一指示信息承载在高层信令或者下行控制信息DCI中。该高层信令例如可以为RRC信令或者媒体接入控制(Medium Access Control，MAC)控制元素(Control Elements，CE)，MAC CE承载了MAC层的控制信息。
应理解，该第一PRG的大小可以是网络设备通过第一指示信息指示给终端设备的，也可以是终端设备通过所述先验信道信息或者结合信道互易性对下行参考信号进行测量自行设定的；也可以是网络设备与终端设备事先约定好该第一PRG的大小，从而网络设备无需通过第一指示信息向终端设备指示。网络设备可以直接指示该第一PRG的大小，也可以指示该第一PRG的大小与第二PRG的大小之间的关系，例如网络设备指示第一PRG的大小与所述第二PRG的大小相等，那么终端设备就可以通过第二PRG的大小获取第一PRG的大小。
还应理解，终端设备用于传输参考信号的频域资源可以被划分为包括该第一PRG在内的多个第一PRG。所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG。
其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参 考信号资源。
也就是说，在多个第一PRG中，传输参考信号所使用的预编码矩阵在每个第一PRG上是独立的。也可以理解为，当前能够用于发送参考信号所使用的带宽可以包括多个第一PRG，每个第一PRG上传输的该参考信号所使用的至少一个预编码矩阵，与其他第一PRG上传输的该参考信号所使用的至少一个预编码矩阵可以不相同。
应理解，在这里，终端设备支持的带宽或整个系统的上行传输带宽的频域资源可以被划分为包括连续多个第一PRG，这连续的多个第一PRG的大小相同，且互不重叠。例如，终端设备支持的带宽包括48个PRB，每个第一PRG的大小为6个PRB，那么整个频带被划分为8个第一PRG(PRB#0-PRB#5、PRB#6-PRB#10、PRB#11-PRB#15…)，每个第一PRG包括连续的相同数量的PRB，且在每个第一PRG对应的频带中的PRB上发送的参考信号都使用相同的预编码矩阵进行预编码，在不同第一PRG对应的频带中的PRB上发送的参考信号使用不同的预编码矩阵进行预编码，例如PRB#0-PRB#5这段频带上传输的两个参考信号分别使用预编码矩阵#0和预编码矩阵#1进行预编码，PRB#6-PRB#11这段频带上传输的两个参考信号分别使用预编码矩阵#2和预编码矩阵#3进行预编码。
例如，在多个第一PRG中，第一PRG#0上传输的两个参考信号分别使用预编码矩阵#0和预编码矩阵#1，第一PRG#1上传输的这两个参考信号分别使用预编码矩阵#2和预编码矩阵#3。第一PRG#0和第一PRG#1上传输的参考信号使用不同预编码矩阵进行预编码。比如，这两个参考信号中，一个参考信号在第一PRG#0上使用预编码矩阵#0进行预编码，并在第一PRG#1上使用预编码矩阵#2进行预编码；另一个参考信号在第一PRG#0上采用预编码矩阵#1进行预编码，并在第一PRG#1上使用预编码矩阵#3进行预编码。
还应理解，终端设备支持的带宽或整个系统的上行传输带宽的频域资源可以被划分为包括连续多个第二PRG，这连续的多个第二PRG的大小相同，且互不重叠。例如，终端设备支持的带宽包括48个PRB，每个第二PRG的大小为3个PRB，那么整个频带被划分为16个第一PRG(PRB#0-PRB#2、PRB#3-PRB#5、PRB#6-PRB#8……)，每个第二PRG包括连续的相同数量的PRB，且在每个第二PRG对应的频带中的PRB上发送的PUSCH都使用相同的预编码矩阵进行预编码，在不同第二PRG对应的频带中的PRB上发送的PUSCH使用不同的预编码矩阵进行预编码，例如PRB#0-PRB#2这段频带上传输的PUSCH使用预编码矩阵#0或预编码矩阵#1进行预编码，PRB#3-PRB#5这段频带上传输的PUSCH使用预编码矩阵#2或预编码矩阵#3进行预编码，后面依次。
在320中，网络设备在第一PRG对应的至少一个参考信号资源上，接收经过预编码的至少一个参考信号。
其中，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为用于传输参考信号的PRG。
可选地，在320之前，该方法还包括：网络设备发送第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
进一步地，可选地，所述第一指示信息承载在高层信令或者下行控制信息DCI中。
在330中，网络设备发送参考信号资源指示信息。
其中，该参考信号资源指示信息用于指示所述至少一个参考信号资源中与第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源。所述第二PRG为用于传输物理上行共享信道PUSCH的PRG。
换句话说，所述第二PRG对应的参考信号资源，属于所述第一PRG中与所述第二PRG频域位置相同的所述至少一个参考信号资源的一个或多个。
其中，可选地，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
可选地，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数。参考信号资源指示信息所指示的与每个第二PRG对应的参考信号资源，为该第一PRG中与该第二PRG频域位置相同的至少一个参考信号资源中的参考信号资源。
具体地，网络设备在第一PRG上接收到至少一个参考信号后，对至少一个参考信号进行检测，并为第二PRG选择用于传输PUSCH的预编码矩阵，并将该预编码矩阵对应的参考信号所使用的参考信号资源的编号指示给终端设备，以使终端设备根据该参考信号资源上传输的参考信号所使用的预编码矩阵，对待发送的PUSCH进行预编码。
应理解，网络设备向终端设备指示用于传输PUSCH的预编码矩阵时，PUSCH的发送带宽中可以包括多个第二PRG，每个第二PRG上用于传输PUSCH的预编码矩阵不同，网络设备需要多个参考信号资源指示信息分别指示多个第二PRG上传输PUSCH所使用的预编码矩阵，这里，网络设备是通过向终端设备指示该预编矩阵对应的参考信号所使用的参考信号资源的编号，来实现对该预编码矩阵的指示。
例如，在多个第二PRG中，第二PRG#0对应的第一PRG中的两个参考信号资源上发送的参考信号分别使用预编码矩阵#0和预编码矩阵#1，第二PRG#1对应的第一PRG中的两个参考信号资源上发送的参考信号分别使用预编码矩阵#2和预编码矩阵#3。网络设备需要两个SRI信令，一个SRI针对第二PRG#0，从预编码矩阵#0和预编码矩阵#1中选择与第二PRG#0匹配的预编码矩阵，另一个SRI针对第二PRG#1从预编码矩阵#2和预编码矩阵#3中选择与第二PRG#1匹配的预编码矩阵。
在340中，终端设备接收参考信号资源指示信息。
其中，所述参考信号资源指示信息用于指示所述至少一个参考信号资源中与第二PRG对应的参考信号资源，所述第二PRG为用于传输物理上行共享信道PUSCH的PRG。
其中，可选地，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
具体地，终端设备在第一PRG对应的至少一个参考信号资源上，向网络设备发送经过预编码的至少一个参考信号后，网络设备对该至少一个参考信号进行检测，并选择第二PRG上用于传输数据的据编码矩阵，并且将用于接收该参考信号的参考信号资源的编号指示给终端设备，终端设备接收参考信号资源指示信息后，根据该参考信号资源指示信息，获取该至少一个参考信号资源中与第二PRG对应的参考信号资源。
在350中，终端设备根据所述参考信号资源指示信息，在所述第二PRG上发送经过预编码的PUSCH。
其中，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上 发送的参考信号所使用的预编码矩阵确定的。
应理解，所述PUSCH使用的预编码矩阵，可以为与所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵相同。也可以是与所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵相关的预编码矩阵。例如，与所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵为M，PUSCH使用的预编码矩阵可以也是M，或者可以是对M进行进一步处理所得到的预编码矩阵例如预编码矩阵M*M1。
还应理解，本申请实施例中，以PUSCH使用的预编码矩阵与所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵相同为例进行说明。但本申请不限于此，所述PUSCH使用的预编码矩阵，也可以是与所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵相关的其他预编码矩阵。
这里，不同参考信号资源指示信息所指示的与第二PRG对应的参考信号资源不同，因而不同的第二PRG上传输的PUSCH可以使用不同的预编码矩阵进行预编码。
具体地，终端设备根据接收到的参考信号资源指示信息，获取该参考信号资源指示信息所指示的与第二PRG对应的参考信号资源，从而根据该参考信号资源上发送的参考信号所使用的预编码矩阵，对待发送的PUSCH进行预编码，并向网络设备发送预编码后的该PUSCH。
例如，该参考信号为SRS，终端设备接收网络设备发送的SRS资源指示SRI，从而获取该SRI指示的SRS资源的编号，并使用该SRS资源上发送的SRS所对应的预编码矩阵，对待传输的PUSCH进行预编码。
可选地，在350之前，该方法还包括：终端设备接收资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
应理解，此时用于指示该PUSCH资源配置信息的位图(bitmap)的比特个数取决于能够用于传输参考信号的带宽而不是总系统带宽。例如，用于传输参考信号的带宽为4个RBG，而系统带宽为10个RBG，此时用于指示PUSCH资源配置信息的位图的比特数为4。
由于网络设备向终端设备发送的用于指示PUSCH的传输资源的资源配置信息，是基于终端设备能够用于传输参考信号的频带来指示用于传输该PUSCH的频带，而不是基于整个系统带宽来指示用于传输该PUSCH的频带，因而可以节省信令开销。
在360中，网络设备在第二PRG上，接收经过预编码的PUSCH。
其中，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
因此，该实施例通过设置用于传输参考信号的第一PRG，使得终端设备可以在第一PRG中传输预编码后的参考信号，从而网络设备能够根据第一PRG上传输的参考信号，有效地为用于传输PUSCH的第二PRG确定对应的预编码矩阵，并且不会增加额外的信令开销。
可选地，在360之前，该方法还包括：网络设备发送资源配置信息，该资源配置信息指示用于传输该PUSCH的频带，其中，所述资源配置信息在所述终端设备用于传输所述 至少一个参考信号的频带内进行指示。
由于为终端设备配置PUSCH的传输资源的资源配置信息，是基于终端设备能够用于传输参考信号的频带来指示用于传输该PUSCH的频带，而不是基于整个系统带宽来指示用于传输该PUSCH的频带，因而可以节省信令开销。
应理解，本申请实施例中，第一PRG为用于传输参考信号的PRG，第二PRG为用于传输PUSCH的PRG。每个第一PRG中传输的参考信号，使用的都是相同的一组预编码矩阵即与该第一PRG对应的预编码矩阵。该第一PRG对应的频率范围内预编码矩阵不会随着频率的变化而变化。
在310至360中，第一PRG的大小和第二PRG的大小之间的关系可以存在两种情况，下面分别描述。
情况1
可选地，该第一PRG的大小等于n个第二PRG的大小。
其中，该第一PRG对应的n个第二PRG中包括上述310至330中的该第二PRG，n为正整数。
也可以说，第一PRG的大小等于第二PRG的大小的n倍，每个第一PRG在频域上对应于n个第二PRG，即一个第一PRG占用的频带和n个第二PRG占用的频带是相同的。
因此，由于第一PRG的大小等于第二PRG的大小的整数倍，使得第二PRG中的所有的PRB上用于传输PUSCH的预编码矩阵，都可以从相同的一组预编码矩阵中(即第一PRG上传输的参考信号所使用的预编码矩阵中)进行选择，而无需信令再次指示。
而现有技术中，一个第二PRG中不同PRB上用于传输PUSCH的预编码矩阵，可能是分别从不同的几组预编码矩阵(不同第一PRG上传输的参考信号所使用的预编码矩阵)中进行选择，因而后续还需要其他信令进行指示以使得该第二PRG中所有PRB上用于传输PUSCH的预编码矩阵均相同。
可选地，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则320中终端设备接收的参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
因此，网络设备只需要指示PRG编号最小的第二PRG对应的参考信号资源即可，这n个第二PRG中的与该第二PRG相邻的第二PRG对应的参考信号资源可以不再进行指示，即用于指示该相邻第二PRG对应的参考信号资源的参考信号资源指示信息可以省略，节省了信令开销。当然，也可以只指示PRG编号最大的第二PRG对应的参考信号资源，而省略其他PRG编号较小的二PRG对应的参考信号资源，这里不做限定。
例如图4所示的SRS传输的资源示意图，第一PRG的大小等于3个第二PRG的大小(n＝2)，第一PRG#0在频域上对应于第二PRG#0、第二PRG#1和第二PRG#3，终端设备在第一PRG上发送使用预编码矩阵#0和预编码矩阵#1进行编码后的SRS。假设网络设备为第二PRG#0确定的与第二PRG#0对应的参考信号资源，为传输预编码矩阵#0编码的SRS的参考信号资源；为第二PRG#1确定的与第二PRG#1对应的参考信号资源，也为传输预编码矩阵#0编码的SRS的参考信号资源；为第二PRG#2确定的与第二PRG#2对应的参考信号资源，为传输预编码矩阵#1编码的SRS的参考信号资源。由于第二PRG#0和 第二PRG#1中第二PRG#0编号小，那么网络设备可以向终端设备发送针对第二PRG#1的参考信号资源指示信息，以指示第二PRG#0和第二PRG#1对应的该相同的参考信号资源。
应理解，该实施例中，该第一PRG对应的n个第二PRG是指，该n个第二PRG与该第一PRG占用相同的频带。例如图4所示，PRB#0至PRB#5上传输的参考信号使用第一PRG对应的预编码矩阵#0和预编码矩阵#1进行预编码。而同样是PRB#0至PRB#5上传输的PUSCH中，PRB#0至PRB#3上传输的PUSCH使用预编码矩阵为预编码矩阵#0，PRB#4至PRB#5上传输的PUSCH使用预编码矩阵为预编码矩阵#1。
情况2
可选地，该第二PRG的大小等于m个第一PRG的大小。
其中，该第二PRG对应的m个第一PRG中包括上述310至330中的第一PRG，m为正整数。
也可以说，第二PRG的大小等于第一PRG的大小的m倍，每个第二PRG在频域上对应于m个第一PRG。该第二PRG对应的参考信号资源，可以为这m个第一RPG中的某个第一PRG对应的至少一个参考信号资源中的一个。
可选地，上述310至330中的第一PRG为该第二PRG对应的m个第一PRG中PRG编号最小或最大的第一PRG。
即与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
具体地，在第二PRG对应的m个第一PRG中，PRG编号最小的第一PRG所对应的至少一个参考信号资源，可以用于确定与该第二PRG对应的参考信号资源。即，第二PRG对应的参考信号资源，是在PRG编号最小的第一PRG所对应的至少一个参考信号资源中确定的。
例如图5所示的SRS传输的资源示意图，第二PRG的大小等于2个第一PRG的大小(m＝2)，第二PRG#0在频域上对应于第一PRG#0、第一PRG#1和第一PRG#3，终端设备在第一PRG#0上发送使用预编码矩阵#0和预编码矩阵#1进行编码后的SRS，在第一PRG#1上发送使用预编码矩阵#2和预编码矩阵#3进行编码后的SRS，在第一PRG#2上发送使用预编码矩阵#4和预编码矩阵#5进行编码后的SRS。网络设备在确定第二PRG#0对应的参考信号资源时，首先在第一PRG#0、第一PRG#1和第一PRG#3中选择资源编号最小的第一PRG(这里为第一PRG#0)，然后在第一PRG#0对应的至少一个参考信号资源中，选择第二PRG#0对应的参考信号资源，也就是说，第二PRG#0对应的参考信号资源上传输的SRS所使用的预编码矩阵为预编码矩阵#0和预编码矩阵#1中的一个。
应理解，该实施例中，该第二PRG对应的m个第一PRG是指，该m个第一PRG与该第二PRG占用相同的频带。
对于上面描述的情况1和情况2，还存在一种特殊的情况，即第一PRG的大小和第二PRG的大小相同，一个第一PRG在频域上对应于一个第二PRG。例如图6所示的SRS传输的资源示意图，图6示出一个时隙中的三个第一PRG，每个第一PRG的带宽等于一个第二PRG的大小，每个第一PRG中包括3个PRB。第一PRG#0上传输的SRS均使用预编码矩阵#0和预编码矩阵#1进行预编码，第一PRG#1上传输的SRS均使用预编码矩阵#2 和预编码矩阵#3进行预编码，第一PRG#2上传输的SRS均使用预编码矩阵#4和预编码矩阵#5进行预编码。
对于第一PRG#0，终端设备使用预编码矩阵#0和预编码矩阵#1对两个SRS分别进行预编码，并在该第一PRG#0上发送预编码后的这两个SRS。网络设备接收到这两个SRS后，对这两个SRS进行测量，并在两个SRS使用的预编码矩阵中选择与第二PRG#0最匹配的预编码矩阵，从而将与第二PRG#0对应的SRS资源(即该预编码矩阵对应的SRS所使用的SRS资源)的编号通过SRI指示给终端设备，以便于终端设备根据使用该SRS资源的SRS所对应的预编码矩阵，对第二PRG#0上待发送的PUSCH进行预编码。
同样，对于第一PRG#1，终端设备使用预编码矩阵#2和预编码矩阵#3对这两个SRS分别进行预编码，并在该第一PRG#1上发送预编码后的这两个SRS。网络设备接收到这两个SRS后，对这两个SRS进行测量，并在两个SRS使用的预编码矩阵中选择与第二PRG#1最匹配的预编码矩阵，从而将与第二PRG#0对应的SRS资源(即该预编码矩阵对应的SRS所使用的SRS资源)的编号通过SRI指示给终端设备，以便于终端设备根据使用该SRS资源的SRS所对应的预编码矩阵，对第二PRG#1上待发送的PUSCH进行预编码。
同样，对于第一PRG#2，终端设备使用预编码矩阵#4和预编码矩阵#5对这两个SRS分别进行预编码，并在该第一PRG#2上发送预编码后的这两个SRS。网络设备接收到这两个SRS后，对这两个SRS进行测量，并在这两个SRS使用的预编码矩阵中选择与第二PRG#0最匹配的预编码矩阵，从而将与第二PRG#0对应的SRS资源(即该预编码矩阵对应的SRS所使用的SRS资源)的编号通过SRI指示给终端设备，以便于终端设备根据使用该SRS资源的SRS所对应的预编码矩阵，对第二PRG#2上待发送的PUSCH进行预编码。
应理解，同一参考信号在第一PRG#0、第一PRG#1和第一PRG#2上传输时所使用的预编码矩阵可以是不同的。
图6中每个第一PRG的带宽等于一个第二PRG的带宽，因而每个第二PRG中的不同PRB上传输的SRS所使用的预编码矩阵均相同，网络设备只需要在预编码矩阵#0和预编码矩阵#1中为第二PRG#0选择对应的预编码矩阵用于PUSCH的传输，在预编码矩阵#2和预编码矩阵#3中为第二PRG#1选择对应的预编码矩阵用于上行数据的传输，在预编码矩阵#4和预编码矩阵#5中为第二PRG#2选择对应的预编码矩阵用于上行数据的传输。一个第二PRG中的所有PRB上传输的PUSCH所使用的预编码矩阵都是相同的。因此，网络设备能够有效地为不同第二PRG上传输的数据选择合适的预编码矩阵。
可选地，终端设备在第一PRG上发送的参考信号可以占用该第一PRG中的全部PRB，或者占用该第一PRG中的部分PRB例如按照一定密度在该第一PRG中分布。
其中，该RBG的大小与第一PRG或第二PRG的大小之间的关系可以例如前面表二所示。
例如图6所示的SRS传输的资源示意图，第一PRG#0包括PRB#0、PRB#1和PRB#2，且该时隙的最后一个符号上，第一PRG#0中的PRB#0、PRB#1和PRB#2上均传输SRS，该第一PRG#0上传输的SRS使用预编码矩阵#0和预编码矩阵#1进行预编码。
又例如图7所示的SRS传输的资源示意图，示出了一个时隙中的三个第一PRG，每 个第一PRG的带宽等于一个第二PRG的大小，每个第一PRG中包括4个PRB，SRS在频域上的密度为1/4。第一PRG#0包括PRB#0、PRB#1、PRB#2和PRB#3，且该时隙的最后一个符号上，PRB#0、PRB#1、PRB#2和PRB#3中，仅有一个PRB即PRB#2上传输SRS；第一PRG#1包括PRB#4、PRB#5、PRB#6和PRB#7，仅有一个PRB即PRB#5上传输SRS；第一PRG#2包括PRB#8、PRB#9、PRB#10和PRB#11，仅有一个PRB即PRB#9上传输SRS。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
进一步地，可选地，第一PRG的频域起止位置与资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述RBG的频域起止位置相同。
换句话说，若系统带宽中用于传输参考信号的频带中包括P个第一PRG，且该系统带宽中包括用于传输PUSCH的Q个第二PRG，则P个第一PRG的频域起止位置与Q个第二PRG的频域起止位置相同，该P个第一PRG占用的频带与Q个第二PRG占用的频带可以相同。
可选地，该第一PRG包括终端设备能够用于传输所述至少一个参考信号的整个频带。
即，能够用于传输该至少一个参考信号的带宽中仅包括一个第一PRG，在该第一PRG即能够用于传输该参考信号的整个频带中，参考信号所使用的预编码矩阵不随频率的变化而变化。终端设备在用于传输参考信号的整个带宽中使用至少一个预编码矩阵对至少一个参考信号进行预编码，并在至少一个参考信号资源上向网络设备发送该至少一个参考信号。网络设备接收参考信号并测量后，向终端设备分别指示每个第二PRG对应的参考信号资源，其中，每个第二PRG对应的参考信号资源可以与其他第二PRG对应的参考信号资源不同，但是每个第二PRG对应的参考信号资源都是该至少一个参考信号资源中的一个。
例如图8所示的SRS传输的资源示意图。第一PRG包括终端设备用于传输参考信号的整个频带，终端设备在该第一PRG对应的参考信号资源中，向网络设备发送使用预编码矩阵#0至预编码矩阵#5这6个预编码矩阵进行预编码的6个SRS，6个SRS分别使用不同的SRS资源，第二PRG#0、第二PRG#1和第二PRG#2以及其他第二预编码矩阵所对应的参考信号资源上都是在这6个参考信号资源中选择的。终端设备在第二PRG#0、第二PRG#1和第二PRG#2中发送的PUSCH使用的各自对应的预编码矩阵，都为预编码矩阵#0至预编码矩阵#5中的一个。
可选地，终端设备使用多个参考信号进程(后面简称为“进程”)发送该至少一个参考信号，在该多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同。
其中，该第二PRG对应的参考信号资源，为该多个参考信号进程中被选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
这里，参考信号进程对应了一个高层信令的域(field)，参考信号进程包含了一组或者多组参考信号的配置参数，其中每组配置参数对应一个参考信号，参考信号进程的配置是网络设备通过RRC指示给终端设备的。每个参考信号进程中包含的参考信号可以认为是从一个特定的天线组或者天线面板发送的。该配置参数例如可以为表一所示的配置参数中的至少一个。
例如图9所示的多个参考信号进程的示意图，终端设备可以通过4个天线面板即四个参考信号进程向网络设备发送参考信号。每个参考信号进程中用于传输参考信号的第一PRG的大小可以不完全相同，传输SRS的密度也可以不完全相同。例如图10所示，进程#0中的第一PRG包括12个PRB，进程#1中的第一PRG包括4个PRB，进程#2中的第一PRG包括4个PRB，进程#3中的第一PRG包括2个PRB。
网络设备可以根据当前的信道状态或者其他因素，在多个参考信号进程中选择一个或者多个，例如，如果信道状态变化剧烈，网络设备可以在多个进程的第一PRG中选择较小的第一PRG。如图10所示，网络设备选择进程#3中与第二PRG频域位置相同的第一PRG#0。第二PRG#0对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#0对应的预编码矩阵#0；第二PRG#1对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#1对应的预编码矩阵#1；第二PRG#2对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#2对应的预编码矩阵#2；第二PRG#3对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#3对应的预编码矩阵#3；第二PRG#4对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#4对应的预编码矩阵#4；第二PRG#5对应的参考信号资源上传输的SRS所使用的预编码矩阵，可以是进程#3的第一PRG#5对应的预编码矩阵#5。
如果信道状态很稳定，网络设备可以在多个进程的第一PRG中选择较大的第一PRG。如图10所示，网络设备选择进程#0的第一PRG#0。第二PRG#0至第二PRG#5分别对应的参考信号资源上传输的SRS所使用的预编码矩阵，均为进程#0的第一PRG#0对应的预编码矩阵#0。
应理解，该实施例中，多个进程中每个进程上传输参考信号和PUSCH的过程，可以参考前述任意一种实施例所述的传输参考信号和PUSCH的过程。即310至360中的描述，可以独立应用于每个进程中以用于传输参考信号和PUSCH。
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。
图11是根据本申请实施例的终端设备1100的示意性框图。如图11所示，该终端设备1100包括发送单元1110和接收单元1120。其中：
发送单元1110用于，在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
接收单元1120用于，接收参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG；
发送单元1110还用于，根据所述参考信号资源指示信息，在所述第二PRG上发送经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考 信号资源上发送的参考信号所使用的预编码矩阵确定的。
因此，本申请实施例设置用于传输参考信号的多个第一PRG，终端设备通过在第一PRG中发送使用相应预编码矩阵进行预编码后的参考信号，使得网络设备能够根据第一PRG上传输的参考信号，有效地选择其对应的第二PRG上用于传输PUSCH所采用的预编码矩阵。
可选地，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。
可选地，在所述第一PRG对应的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
可选地，所述第二PRG的大小等于m个第一PRG的大小。
可选地，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
可选地，所述第一PRG的频域起止位置与所述终端设备的资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述终端设备的RBG的频域起止位置相同。
可选地，所述第一PRG包括所述终端设备用于传输所述至少一个参考信号的整个频带。
可选地，所述接收单元1120还用于：在所述发送单元1110在所述第二PRG上发送经过预编码的PUSCH之前，接收资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
可选地，所述接收单元1120还用于：在所述发送单元1110在第一PRG对应的至少一个参考信号资源上，发送经过预编码的至少一个参考信号之前，接收承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
可选地，所述终端设备使用多个参考信号进程发送参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，所述参考信号包括探测参考信号SRS。
图12是根据本申请实施例的网络设备1200的示意性框图。如图12所示，该网络设备1200包括接收单元1210和发送单元1220。其中：
接收单元1210用于，在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别接收经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
发送单元1220用于，发送参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG；
接收单元1210还用于，在所述第二PRG上，接收经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
因此，本申请实施例设置用于传输参考信号的多个第一PRG，终端设备通过在第一PRG中发送使用相应预编码矩阵进行预编码后的参考信号，使得网络设备能够根据第一PRG上传输的参考信号，有效地选择其对应的第二PRG上用于传输PUSCH所采用的预编码矩阵。
可选地，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。
可选地，在所述第一PRG对应的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
可选地，所述第二PRG的大小等于m个第一PRG的大小。
可选地，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
可选地，所述第一PRG的频域起止位置与所述终端设备的资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述终端设备的RBG的频域起止位置相同。
可选地，所述第一PRG包括所述网络设备用于接收参考信号的整个频带。
可选地，所述发送单元1220还用于：在所述接收单元1210在所述第二PRG上，接 收经过预编码的PUSCH之前，发送资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
可选地，所述发送单元1220还用于：在所述接收单元1210在第一PRG对应的至少一个参考信号资源上，接收经过预编码的至少一个参考信号之前，发送承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
可选地，所述网络设备接收多个参考信号进程中的所述至少一个参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，所述参考信号包括探测参考信号SRS。
图13是根据本申请实施例的终端设备1300的示意性结构图。如图13所示，该终端设备包括处理器1310、收发器1320和存储器1330，其中，该处理器1310、收发器1320和存储器1330之间通过内部连接通路互相通信。该存储器1330用于存储指令，该处理器1310用于执行该存储器1330存储的指令，以控制该收发器1320接收信号或发送信号。其中，该收发器1320用于：
在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
接收参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
根据所述参考信号资源指示信息，在所述第二PRG上发送经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
可选地，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。
可选地，在所述第一PRG对应的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG 为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
可选地，所述第二PRG的大小等于m个第一PRG的大小。
可选地，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
可选地，所述第一PRG的频域起止位置与所述终端设备的资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述终端设备的RBG的频域起止位置相同。
可选地，所述第一PRG包括所述终端设备用于传输所述至少一个参考信号的整个频带。
可选地，所述收发器1320还用于：在所述第二PRG上发送经过预编码的PUSCH之前，接收资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
可选地，所述收发器1320还用于：在第一PRG对应的至少一个参考信号资源上，发送经过预编码的至少一个参考信号之前，接收承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
可选地，所述终端设备使用多个参考信号进程发送参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，所述参考信号包括探测参考信号SRS。
应理解，在本申请实施例中，该处理器1310可以是中央处理单元(Central Processing Unit，CPU)，该处理器1310还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(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1330可以包括只读存储器和随机存取存储器，并向处理器1310提供指令和数据。存储器1330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1330还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器1310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定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1310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1330，处理器1310读取存储器1330中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的终端设备1300可以对应于上述方法300中用于执行方法300的终端设备，以及根据本申请实施例的终端设备1100，且该终端设备1300中的各单元或模块分别用于执行上述方法300中终端设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图14是根据本申请实施例的网络设备1400的示意性结构图。如图14所示，该网络设备包括处理器1410、收发器1420和存储器1430，其中，该处理器1410、收发器1420和存储器1430之间通过内部连接通路互相通信。该存储器1430用于存储指令，该处理器1410用于执行该存储器1430存储的指令，以控制该收发器1420接收信号或发送信号。其中，该收发器1420用于：
在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别接收经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
发送参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
在所述第二PRG上，接收经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的。
可选地，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
可选地，所述第一PRG的大小等于n个第二PRG的大小，n为正整数。
可选地，在所述第一PRG对应的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
可选地，所述第二PRG的大小等于m个第一PRG的大小。
可选地，所述第一PRG为所述第二PRG对应的m个第一PRG中PRG编号最小或者最大的第一PRG，与所述第二PRG对应的参考信号资源，为所述m个第一PRG中PRG编号最小或者最大的第一PRG对应的所述至少一个参考信号资源中的参考信号资源，m为正整数。
可选地，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
可选地，所述第一PRG的频域起止位置与所述终端设备的资源块组RBG的频域起止位置相同，第二PRG的频域起止位置与所述终端设备的RBG的频域起止位置相同。
可选地，所述第一PRG包括所述网络设备用于接收参考信号的整个频带。
可选地，所述收发器1420还用于：在所述第二PRG上，接收经过预编码的PUSCH之前，发送资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
可选地，所述收发器1420还用于：在第一PRG对应的至少一个参考信号资源上，接收经过预编码的至少一个参考信号之前，发送承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k。
可选地，所述网络设备接收多个参考信号进程中的所述至少一个参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
可选地，所述参考信号包括探测参考信号SRS。
应理解，在本申请实施例中，该处理器1410可以是中央处理单元(Central Processing Unit，CPU)，该处理器1410还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现成可编程门阵列(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1430可以包括只读存储器和随机存取存储器，并向处理器1410提供指令和数据。存储器1430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1430还可以存储设备类型的信息。
在实现过程中，上述方法的各步骤可以通过处理器1410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定位方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器1410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1430，处理器1410读取存储器1430中的信息，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
根据本申请实施例的网络设备1400可以对应于上述方法600中用于执行方法600的网络设备，以及根据本申请实施例的网络设备1200，且该网络设备1400中的各单元或模块分别用于执行上述方法600中网络设备所执行的各动作或处理过程，这里，为了避免赘述，省略其详细说明。
图15是本申请实施例的系统芯片的一个示意性结构图。图15的系统芯片1500包括输入接口1501、输出接口1502、至少一个处理器1503、存储器1504，所述输入接口1501、输出接口1502、所述处理器1503以及存储器1504之间通过内部连接通路互相连接。所述处理器1503用于执行所述存储器1504中的代码。
可选地，当所述代码被执行时，所述处理器1503可以实现方法实施例中由终端设备执行的方法300。为了简洁，这里不再赘述。
可选地，当所述代码被执行时，所述处理器1503可以实现方法实施例中由网络设备执行的方法300。为了简洁，这里不再赘述。
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所述方法的全部或部分步骤。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，仅为本申请的具体实施方式，但本申请实施例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实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请适合私利的保护范围之内。因此，本申请实施例的保护范围应该以权利要求的保护范围为准。

Claims (30)

  1. 一种传输数据的方法，其特征在于，所述方法包括：
    终端设备在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
    所述终端设备接收参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
    所述终端设备根据所述参考信号资源指示信息，在所述第二PRG上发送经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
  2. 根据权利要求1所述的方法，其特征在于，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
  3. 根据权利要求1或2所述的方法，其特征在于，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
  4. 根据权利要求1至3中任一项所述的方法，其特征在于，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
  5. 根据权利要求1至4中任一项所述的方法，其特征在于，所述第一PRG为所述终端设备用于传输所述至少一个参考信号的整个频带。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，在所述终端设备在所述第二PRG上发送经过预编码的PUSCH之前，所述方法还包括：
    所述终端设备接收资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
  7. 根据权利要求1至6中任一项所述的方法，其特征在于，在所述终端设备在第一PRG对应的至少一个参考信号资源上，发送经过预编码的至少一个参考信号之前，所述方 法还包括：
    所述终端设备接收承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
    所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为1或者大于1的正整数。
  8. 根据权利要求1至7中任一项所述的方法，其特征在于，所述终端设备使用多个参考信号进程发送参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
  9. 一种传输数据的方法，其特征在于，所述方法包括：
    网络设备在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别接收经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
    所述网络设备发送参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
    所述网络设备在所述第二PRG上，接收经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
  10. 根据权利要求9所述的方法，其特征在于，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
  11. 根据权利要求9或10所述的方法，其特征在于，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
  12. 根据权利要求9至11中任一项所述的方法，其特征在于，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
  13. 根据权利要求9至12中任一项所述的方法，其特征在于，所述第一PRG包括所述网络设备用于接收所述至少一个参考信号的整个频带。
  14. 根据权利要求9至13中任一项所述的方法，其特征在于，在所述网络设备在所述第二PRG上，接收经过预编码的PUSCH之前，所述方法还包括：
    所述网络设备发送资源配置信息，所述资源配置信息指示用于传输所述PUSCH的频域资源，其中，所述资源配置信息在所述终端设备用于传输所述至少一个参考信号的频带内进行指示。
  15. 根据权利要求9至14中任一项所述的方法，其特征在于，在所述网络设备在第一PRG对应的至少一个参考信号资源上，接收经过预编码的至少一个参考信号之前，所述方法还包括：
    所述网络设备发送承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
    所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为1或者大于1的正整数。
  16. 根据权利要求9至15中任一项所述的方法，其特征在于，所述网络设备接收多个参考信号进程中的所述至少一个参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中被选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
  17. 一种传输数据的终端设备，其特征在于，所述终端设备包括：
    发送单元，用于在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别发送经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
    接收单元，用于接收参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
    所述发送单元还用于，根据所述参考信号资源指示信息，在所述第二PRG上发送经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
  18. 根据权利要求17所述的终端设备，其特征在于，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
  19. 根据权利要求17或18所述的终端设备，其特征在于，与所述第一PRG频域位置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG 相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
  20. 根据权利要求17至19中任一项所述的终端设备，其特征在于，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
  21. 根据权利要求17至20中任一项所述的终端设备，其特征在于，所述第一PRG为所述终端设备用于传输所述至少一个参考信号的整个频带。
  22. 根据权利要求17至21中任一项所述的终端设备，其特征在于，所述接收单元还用于：
    接收承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
    所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为1或者大于1的正整数。
  23. 根据权利要求17至22中任一项所述的终端设备，其特征在于，所述终端设备使用多个参考信号进程发送参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
  24. 一种传输数据的网络设备，其特征在于，所述网络设备包括：
    接收单元，用于在第一预编码资源块组PRG对应的至少一个参考信号资源上，分别接收经过预编码的至少一个参考信号，所述至少一个参考信号中不同的参考信号使用不同的预编码矩阵进行所述预编码，所述第一PRG为参考信号的PRG，所述参考信号包括探测参考信号SRS；
    发送单元，用于发送参考信号资源指示信息，所述参考信号资源指示信息用于指示第二PRG对应的参考信号资源，其中，所述第二PRG对应的参考信号资源为，从与所述第二PRG频域位置相同的所述第一PRG对应的所述至少一个参考信号资源中选择出的至少一个参考信号资源，所述第二PRG为物理上行共享信道PUSCH的PRG，所述第一PRG的大小等于第二PRG的大小的n倍，n为1或者大于1的正整数；
    所述接收单元，用于在所述第二PRG上，接收经过预编码的PUSCH，所述PUSCH使用的预编码矩阵，是根据所述第二PRG对应的参考信号资源上发送的参考信号所使用的预编码矩阵确定的，所述参考信号资源指示信息承载在下行控制信息DCI、媒体接入控制元素MAC CE或物理下行共享信道PDSCH中。
  25. 根据权利要求24所述的网络设备，其特征在于，所述第一PRG上发送的所述至少一个参考信号所使用的至少一个预编码矩阵，与其他第一PRG上发送的至少一个参考信号所使用的至少一个预编码矩阵，至少部分不同，所述其他第一PRG为多个第一PRG中与所述第一PRG频域位置不同的第一PRG，其中，所述PUSCH的多个第二PRG对应的多个参考信号资源为，从与所述多个第二PRG频域位置相同的所述多个第一PRG对应的多个参考信号资源中选择出的至少一个参考信号资源。
  26. 根据权利要求24或25所述的网络设备，其特征在于，与所述第一PRG频域位 置相同的n个第二PRG中，若所述第二PRG对应的参考信号资源，和与所述第二PRG相邻的第二PRG对应的参考信号资源相同，且所述第二PRG为所述n个第二PRG中PRG编号最小或最大的第二PRG，则所述参考信号资源指示信息还用于指示所述相邻的第二PRG对应的参考信号资源。
  27. 根据权利要求24至26中任一项所述的网络设备，其特征在于，所述第一PRG的频域起止位置，和n个第二PRG的频域起止位置相同。
  28. 根据权利要求24至27中任一项所述的网络设备，其特征在于，所述第一PRG包括所述网络设备用于接收参考信号的整个频带。
  29. 根据权利要求24至28中任一项所述的网络设备，其特征在于，所述发送单元还用于：
    发送承载在高层信令或者下行控制信息DCI中的第一指示信息，所述第一指示信息用于指示以下中的至少一种：
    所述第一PRG的大小、所述第二PRG的大小、以及所述第一PRG的大小与所述第二PRG的大小之间的倍数关系k，k为1或者大于1的正整数。
  30. 根据权利要求24至29中任一项所述的网络设备，其特征在于，所述网络设备接收多个参考信号进程中的所述至少一个参考信号，在所述多个参考信号进程中，每个参考信号进程中的第一PRG的大小，与其他参考信号进程中的第一PRG的大小相同或不同，所述第二PRG对应的参考信号资源，为所述多个参考信号进程中通过信令指示所选择的参考信号进程的第一PRG对应的至少一个参考信号资源中的至少一个。
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US20200067663A1 (en) 2020-02-27
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