WO2021143942A1 - 探测参考信号传输方法及相关产品 - Google Patents

探测参考信号传输方法及相关产品 Download PDF

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Publication number
WO2021143942A1
WO2021143942A1 PCT/CN2021/077607 CN2021077607W WO2021143942A1 WO 2021143942 A1 WO2021143942 A1 WO 2021143942A1 CN 2021077607 W CN2021077607 W CN 2021077607W WO 2021143942 A1 WO2021143942 A1 WO 2021143942A1
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WIPO (PCT)
Prior art keywords
srs
subband
terminal device
subbands
network device
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PCT/CN2021/077607
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English (en)
French (fr)
Inventor
王化磊
Original Assignee
北京紫光展锐通信技术有限公司
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Publication date
Application filed by 北京紫光展锐通信技术有限公司 filed Critical 北京紫光展锐通信技术有限公司
Priority to EP21740841.8A priority Critical patent/EP4092946A4/en
Priority to JP2022543433A priority patent/JP2023548258A/ja
Publication of WO2021143942A1 publication Critical patent/WO2021143942A1/zh
Priority to US17/864,784 priority patent/US20220353124A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/2605—Symbol extensions, e.g. Zero Tail, Unique Word [UW]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2626—Arrangements specific to the transmitter only
    • H04L27/2646—Arrangements specific to the transmitter only using feedback from receiver for adjusting OFDM transmission parameters, e.g. transmission timing or guard interval length
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0092—Indication of how the channel is divided
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • 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 invention relates to the field of communications, in particular to a sounding reference signal transmission method and related products.
  • the communication standard 17 release 17, Rel-17 plan introduced a partial sounding across frequency solution to solve the sounding reference signal , SRS) coverage issues.
  • the SRS bandwidth is divided into at least two subbands.
  • the method is specifically divided into two steps.
  • the first step is for the terminal device to send sounding reference information to the network device on the resource block (RB) of each subband.
  • the second step is for the network device to determine one or more target subbands from at least two subbands by evaluating the received SRS of each subband, and instruct the terminal device to send SRS again on the target subband for further channel detection .
  • the terminal device knows the position of the target subband in the SRS bandwidth and sends the SRS on the target subband.
  • the embodiment of the application provides a sounding reference signal transmission method and related products.
  • the terminal device obtains subband indication information from the first downlink control information, so as to send to the network device on the target subband indicated by the subband indication information SRS.
  • an embodiment of the present application provides a sounding reference signal transmission method.
  • the method may include: the terminal device sends a first sounding reference signal to a network device in an SRS area of N subbands of the sounding reference signal SRS bandwidth.
  • Signal SRS the N is greater than 1; each subband in the N subbands includes one SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs;
  • the terminal device receives the first downlink control information DCI; the terminal device obtains subband indication information from the first DCI, and the subband indication information is used to indicate a target subband among the N subbands;
  • the terminal device sends the second SRS to the network device on the target subband.
  • the method before the terminal device sends the first sounding reference signal SRS to the network device in the SRS area of the N subbands of the sounding reference signal SRS bandwidth, the method further includes: The terminal device receives SRS configuration information and a second DCI, where the second DCI is used to trigger a group of SRS resources in the SRS configuration information and instruct the terminal device to use the SRS resource to send the first SRS.
  • the terminal device sending the second SRS to the network device on the target subband includes: the terminal device uses the SRS resource triggered by the second DCI, Sending a second SRS to the network device on the target subband.
  • the method after the terminal device obtains the subband indication information from the first DCI, after the terminal device is on the target subband, the method sends the first DCI to the network device. Before the second SRS, the method further includes: the terminal device determines the position code of the target subband on the SRS bandwidth according to the subband indication information and the SRS resource, and the position code of the target subband is used for The target subband is indicated in the N subbands.
  • the subband indication information includes subband position information;
  • the SRS resource includes the initial configuration position of the SRS area in the subband;
  • the terminal device indicates according to the subband Information and the SRS resource, determining the position code of the target subband on the SRS bandwidth, including: the terminal device sums the position code included in the subband position information and the initial configuration position, Perform a modulo operation with the N to obtain the position of the target subband.
  • the subband indication information includes a piece of subband position information;
  • the SRS resource includes a starting configuration position of the SRS area in the subband and a cyclic shift candidate position;
  • the SRS The number of RB configurations of subbands in the bandwidth is M;
  • the terminal device determines the position code of the target subband on the SRS bandwidth according to the subband indication information and the SRS resource, including: the terminal device Perform a modulo operation on the candidate position and the difference between the N and the M to obtain a first modulo result; the terminal device encodes the position code included in the subband position information, and the initial configuration position And the sum of the first modulo result, and perform a modulo operation with the N to obtain the position code of the target subband.
  • the subband indication information includes at least two subband location information; before the terminal device receives the first DCI, the method further includes: the terminal device receives the location indication information, so The position indication information is used to indicate target subband position information in the at least two subband position information; the position code included in the target subband position information is the position code of the target subband on the SRS bandwidth, The position code of the target subband is used to indicate the target subband in the N subbands.
  • the number of RB configurations in the subband of the SRS bandwidth is M; the SRS resource includes the initial configuration position of the SRS region in the subband; the terminal device is in the SRS bandwidth
  • Sending the first sounding reference signal SRS to the network device on the SRS area included in the N subbands includes: when the number of RBs in the first subband in the N subbands is the M, the terminal device It is determined that the start position of the SRS area of the first subband is the start configuration position, and the first subband is any subband of the N subbands; and the terminal device is in the first subband. Sending the first SRS to the network device in the SRS area of the belt.
  • the number of RB configurations of the subbands of the SRS bandwidth is M; the terminal device sends the first sounding reference to the network device on the SRS area included in the N subbands of the SRS bandwidth
  • the signal SRS further includes: when the number of RBs in the second subband in the N subbands is less than the M, the terminal device determines not to transmit the first SRS on the second subband; or, The terminal device determines that the start position of the SRS area of the second subband is the first RB position that can be used to send SRS in the second subband, and the second subband is the position of the N subbands. Any subband, and in the SRS area of the second subband, send the first SRS to the network device.
  • an embodiment of the present application provides a sounding reference signal transmission method.
  • the method may include: a terminal device sends a first SRS to a network device in an SRS area of N subbands of the SRS bandwidth, where N is greater than 1.
  • the number of RB configurations of the subbands of the SRR bandwidth is M; the N subbands are the first subband and/or the second subband, the number of RBs of the first subband is the M, and the number of RBs
  • the number of RBs in the two subbands is less than the M; each subband in the N subbands includes one SRS region, and the number of resource blocks RBs in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.
  • the initial configuration position of the SRS area in the subband is indicated by the network device; the terminal device transmits to the network device in the SRS area of the N subbands of the SRS bandwidth
  • the first sounding reference signal SRS includes: when the N subbands include the first subband, the terminal device determines that the start position of the SRS area of the first subband is the start configuration position; The terminal device sends the first SRS to the network device in the SRS area of the first subband among the N subbands.
  • the terminal device sending the first sounding reference signal SRS to the network device in the SRS area included in the N subbands of the SRS bandwidth includes: including the second subband in the N subbands In the case of band, the terminal device determines not to send the first SRS on the second subband; or, the terminal device determines that the start position of the SRS area of the second subband is the second subband.
  • the first RB position in the subband that can be used to send the SRS, and the first SRS is sent to the network device in the SRS area of the second subband in the N subbands.
  • an embodiment of the present application provides a sounding reference signal transmission method.
  • the method may include: a network device receives a first SRS sent by a terminal device, and the first SRS passes through the terminal device in the N sub-bands of the SRS bandwidth.
  • the SRS region included in the band is transmitted, and the N is greater than 1.
  • Each subband in the N subbands includes one SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the subband to which the SRS region belongs The number of RBs in the band; the network device sends a first DCI to the terminal device, where the first DCI includes subband indication information, and the subband indication information is used to instruct the terminal device to send the target subband of the second SRS; The network device receives the second SRS sent by the terminal device on the target subband.
  • the method before the network device receives the first SRS sent by the terminal device, the method further includes: the network device sends the SRS configuration information and the second DCI to the terminal device, and the The second DCI is used to trigger a group of SRS resources in the SRS configuration information and instruct the terminal device to use the SRS resources to send the first SRS.
  • the first DCI is further used to instruct the terminal device to use the SRS resource triggered by the second DCI to send the second SRS to the network device.
  • the subband indication information includes subband location information; the SRS resource includes the initial configuration location of the SRS area in the subband; the location code of the target subband is The sum of the position code included in the subband position information and the initial configuration position is the result of the modulo operation with the N; the position code of the target subband is used to indicate the N subbands Target subband.
  • the subband indication information includes a piece of subband position information;
  • the SRS resource includes a starting configuration position of the SRS area in the subband and a cyclic shift candidate position;
  • the SRS The number of RB configurations of subbands in the bandwidth is M;
  • the position coding of the target subband is the sum of the position coding included in the subband position information, the starting configuration position, and the first modulo result, and A result obtained by performing a modulo operation on the N;
  • the first modulo result is obtained by performing a modulo operation on the difference between the N and the M at the candidate position.
  • the subband indication information includes at least two subband location information; before the network device sends the first DCI to the terminal device, the method further includes; the network device sends The terminal device sends position indication information; the position indication information is used to determine the target subband position information from the at least two subband position information; the position code included in the target subband position information is the target The position code of the subband; the position code of the target subband is used to indicate the target subband in the N subbands.
  • the method before the network device receives the first SRS sent by the terminal device, after the network device sends the first DCI to the terminal device, the method further includes: the network The device determines the target subband among the N subbands according to the received power of the first SRS.
  • an embodiment of the present application provides a sounding reference signal transmission method.
  • the method may include: a network device receives a first SRS, and the first SRS passes through the SRS included in the N subbands of the SRS bandwidth by the terminal device.
  • the N is greater than 1; the N subbands are the first subband and/or the second subband, the number of RBs in the first subband is the M, and the number of RBs in the second subband is The number of RBs is less than the M; each subband of the N subbands includes one SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.
  • an embodiment of the present application provides a terminal device, the terminal device includes: a sending unit, configured to send a first sounding reference signal SRS to a network device in an SRS area of N subbands of the sounding reference signal SRS bandwidth
  • the N is greater than 1; each of the N subbands includes one SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs;
  • a receiving unit Used to receive the first downlink control information DCI; an obtaining unit, used to obtain subband indication information from the first DCI, the subband indication information used to indicate a target subband of the N subbands;
  • the sending unit is further configured to send the second SRS to the network device on the target subband.
  • an embodiment of the present application provides a terminal device.
  • the terminal device includes: a sending unit that sends a first SRS to a network device in an SRS area of N subbands of the SRS bandwidth, where N is greater than or equal to 1.
  • the number of RB configurations of the subbands of the SRR bandwidth is M; the N subbands are the first subband and/or the second subband, the number of RBs of the first subband is the M, and the number of RBs
  • the number of RBs in the two subbands is less than the M; each subband in the N subbands includes one SRS region, and the number of resource blocks RBs in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.
  • an embodiment of the present application provides a network device.
  • the network device includes: a receiving unit configured to receive a first SRS sent by a terminal device.
  • the first SRS passes through the terminal device in the N sub-bands of the SRS bandwidth.
  • the SRS region included in the band is transmitted, and the N is greater than 1.
  • Each subband in the N subbands includes one SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the subband to which the SRS region belongs.
  • the number of RBs in the band a sending unit, configured to send a first DCI to the terminal device, where the first DCI includes subband indication information, and the subband indication information is used to indicate that the terminal device is in the target subband
  • the second SRS is sent on the upper; the receiving unit is further configured to receive the second SRS sent by the terminal device.
  • an embodiment of the present application provides a network device, the network device includes: a receiving unit, configured to receive a first SRS, the first SRS through the terminal device in the N subbands included in the SRS bandwidth of the SRS
  • the N sub-bands are the first sub-band and/or the second sub-band, the number of RBs in the first sub-band is the M, and the second sub-band is The number of RBs of the band is less than the M; each subband of the N subbands includes one SRS region, and the number of resource blocks RBs of the SRS region is less than or equal to the number of RBs of the subband to which the SRS region belongs.
  • an embodiment of the present application provides a terminal device.
  • the terminal device includes a receiver and a transmitter, and further includes: a processor, adapted to implement one or more instructions; and, a computer storage medium, where the computer stores The medium stores one or more instructions, and the one or more instructions are suitable for being loaded by the processor and executing the method according to any one of the first aspect or the second aspect.
  • an embodiment of the present application provides a network device that includes a receiver and a transmitter, and further includes: a processor, adapted to implement one or more instructions; and, a computer storage medium, where the computer stores The medium stores one or more instructions, and the one or more instructions are suitable for being loaded by the processor and executing the method according to any one of the second aspect or the third aspect.
  • an embodiment of the present application provides a communication system.
  • the communication system includes a network device and a terminal device.
  • the terminal device can be used to execute the method according to any one of the first aspects.
  • the network device For performing the method as described in any one of the third aspect.
  • an embodiment of the present application provides a communication system.
  • the communication system includes a network device and a terminal device.
  • the terminal device can be used to execute the method according to any one of the second aspect.
  • the network device For performing the method according to any one of the fourth aspect.
  • an embodiment of the present application provides a computer storage medium that stores one or more instructions, and the one or more instructions are suitable for being loaded by a processor and executed as in the first aspect described above. To the method of any one of the above-mentioned fourth aspects.
  • the embodiment of the application provides a sounding reference signal transmission method and related products.
  • the terminal device obtains subband indication information from the first downlink control information, so as to send to the network device on the target subband indicated by the subband indication information SRS.
  • FIG. 1 is a schematic diagram of a network architecture provided by an embodiment of this application.
  • FIG. 2 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of a first SRS and a second SRS provided by an embodiment of this application;
  • FIG. 4 is a schematic diagram of a first SRS provided by an embodiment of this application.
  • FIG. 5 is a flowchart of another sounding reference signal transmission method provided by an embodiment of this application.
  • FIG. 6 is a flowchart of another sounding reference signal transmission method provided by an embodiment of this application.
  • FIG. 7 is a flowchart of another sounding reference signal transmission method provided by an embodiment of this application.
  • FIG. 8 is a flowchart of another sounding reference signal transmission method provided by an embodiment of this application.
  • FIG. 9 is a schematic structural diagram of a terminal device provided by an embodiment of this application.
  • FIG. 10 is a schematic structural diagram of a network device provided by an embodiment of this application.
  • FIG. 11 is a schematic structural diagram of another terminal device provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of another network device provided by an embodiment of this application.
  • FIG. 13 is a schematic structural diagram of yet another network device provided by an embodiment of this application.
  • FIG. 14 is a schematic structural diagram of another terminal device provided by an embodiment of the application.
  • the embodiment of the application provides a sounding reference signal transmission method and related products.
  • the terminal device obtains subband indication information from the first downlink control information, so as to send to the network device on the target subband indicated by the subband indication information SRS.
  • the terminal equipment in the embodiments of this application may refer to user equipment, access terminal equipment, user unit, user station, mobile station, mobile station, remote station, remote terminal equipment, mobile equipment, user terminal equipment, terminal equipment, wireless communication equipment , User agent or user device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or future evolution of the public land mobile network (PLMN) Terminal equipment, etc., this embodiment of the present application is not limited thereto.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the terminal device may also be a terminal device in the Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to pass items through communication technology. Connect with the network to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the network device in the embodiment of the application may be a device used to communicate with terminal devices, and the network device may be a global system of mobile communication (GSM) system or code division multiple access (CDMA)
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • the base transceiver station (BTS) in the LTE system can also be the base station (node b, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (NB) in the LTE system.
  • NB wideband code division multiple access
  • evolutional node b eNB or eNodeB
  • it can also be a wireless controller in the cloud radio access network (CRAN) scenario
  • the network device can be a relay station, an access point, a vehicle-mounted device, or a wearable device
  • the embodiment of the present application is not limited.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applicable.
  • the architecture diagram includes: a network device 102.
  • the network device 102 may include one antenna or multiple antennas, for example, antennas 104, 106, 108, 110, 112, and 114.
  • the network device 102 may additionally include a transmitter chain and a receiver chain.
  • Those of ordinary skill in the art will understand that they can all include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers, etc.). , Demodulator, demultiplexer or antenna, etc.).
  • the network device 102 may communicate with multiple terminal devices (for example, the terminal device 116 and the terminal device 122). However, it is understood that the network device 102 can communicate with any number of terminal devices similar to the terminal device 116 or the terminal device 122.
  • the terminal devices 116 and 122 may be, for example, cellular phones, smart phones, portable computers, handheld communication devices, handheld computing devices, satellite radios, global positioning systems, PDAs, and/or any other suitable for communicating on the wireless communication system 100. equipment.
  • the terminal device 116 communicates with antennas 112 and 114, where the antennas 112 and 114 send information to the terminal device 116 through the forward link (also referred to as the downlink) 118, and through the reverse link (also referred to as the downlink). (Referred to as uplink) 120 receives information from the terminal device 116.
  • the terminal device 122 communicates with the antennas 104 and 106, where the antennas 104 and 106 transmit information to the terminal device 122 through the forward link 124, and receive information from the terminal device 122 through the reverse link 126.
  • the communication system 100 may be a 5G network or other networks.
  • FIG. 1 is only a simplified schematic diagram of an example, and the network may also include other network equipment, which is not limited in this application, and is not shown in FIG. 1.
  • FIG. 2 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the application. As shown in FIG. 2, the method is a method for terminal equipment to perform sounding reference signal transmission. The method may include:
  • the terminal device sends the first SRS to the network device in the SRS area of the N subbands of the SRS bandwidth of the sounding reference signal.
  • the SRS bandwidth is the uplink system bandwidth or the partial bandwidth (bandwidth part, BWP) of the terminal equipment (use equipment, UE) or the bandwidth allocated by the network equipment of the terminal equipment.
  • BWP bandwidth part
  • each subband includes an SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.
  • a sub-band of a bandwidth is a frequency band obtained by dividing the bandwidth in the frequency domain.
  • the subband has the following characteristics: the subband includes multiple consecutive RBs in the frequency domain; in a bandwidth, the area of each subband does not overlap; in a bandwidth, the size of each subband Generally the same, the same size subbands are configured subbands, but because the bandwidth may not be a multiple of the configured subbands, in a bandwidth, there are subbands that are not configured subbands, such as the first subband in a bandwidth or The last subband.
  • the first SRS may be a frequency hopping SRS or a non-frequency hopping SRS.
  • Figure 3 depicts the frequency hopping first SRS and the non-frequency hopping first SRS. Both the frequency hopping first SRS and the non-frequency hopping first SRS are transmitted through the SRS region of the subband.
  • the RB data included in the SRS area is less than the RB data included in the subband.
  • the power spectral density (PSD) of the first SRS can be increased by transmitting the first SRS in the SRS area of the subband.
  • RB resource block, resource block
  • PRB physical resource block
  • CRB common resource block
  • VRB virtual resource Block
  • the terminal device receives first downlink control information (downlink control information, DCI).
  • DCI downlink control information
  • the terminal device receives the first DCI through the physical downlink control channel, and the first DCI is used to instruct the terminal device to send the second SRS and the SRS resource used by the terminal device to send the second SRS.
  • the first DCI may be common downlink control information (common DCI), or may be a DCI dedicated to the terminal device.
  • the terminal device obtains subband indication information from the first DCI.
  • the subband indication information is used to indicate the target subband among the N subbands.
  • the subband indication information includes the position code of the target subband on the SRS bandwidth.
  • the position code of the target subband is used to instruct the terminal device to determine the target subband from the N subbands.
  • the subband indication information may be one subband location information or multiple subband location information.
  • the subband location information is used to indicate the location code of the target subband of the terminal device.
  • the terminal device sends the second SRS to the network device on the target subband.
  • the terminal device may use all RBs of the target subband, or may use part of the RBs of the target subband to send the second SRS, so as to further detect the target subband through the second SRS.
  • the target subband may be one subband among N subbands, or M subbands among N subbands, and 1 ⁇ M ⁇ N.
  • the terminal device sends the second SRS to the network device through one of the N subbands.
  • the subband used to send the second SRS is the target subband.
  • the target subband is subband 2
  • the terminal device uses all RBs of the target subband to transmit the second SRS.
  • FIG. 5 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the application. As shown in FIG. 5, the method is a method for network equipment to perform sounding reference signal transmission. The method may include:
  • a network device receives a first SRS sent by a terminal device.
  • the first SRS is sent by the terminal device in the SRS area included in the N subbands of the SRS bandwidth, where N is greater than 1; each subband in the N subbands includes an SRS area, and the number of resource blocks RB in the SRS area is less than or equal to the SRS area The number of RBs in the subband.
  • the network device sends the first DCI to the terminal device.
  • the first DCI includes subband indication information, and the subband indication information is used to indicate a target subband for the terminal device to send the second SRS.
  • the first DCI sent by the network device may be a public DCI or a DCI dedicated to the terminal device.
  • the terminal device uses all RBs of the target subband to transmit the second SRS to improve the accuracy of detection. In other embodiments, the terminal device uses part of the RB of the target subband to transmit the second SRS, so as to increase the power spectral density of the second SRS.
  • the network device determines the target subband from the N subsets according to the received power of the first SRS.
  • the network device determines the target subband from the N subbands according to the received power of the first SRS in the N subbands.
  • the received power of the first SRS of the network device in the target subband is the highest received power of the first SRS in the N subbands.
  • the received power of the first SRS of the network device in the target subband exceeds the power threshold.
  • the power threshold can be adjusted according to actual conditions. No restrictions.
  • the network device receives the second SRS sent by the terminal device on the target subband.
  • the network device receives the second SRS to further detect the target subband according to the second SRS, so as to improve the accuracy of detection.
  • the second SRS is the SRS sent by the terminal device on the target subband.
  • FIG. 6 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the application.
  • the method is a method for terminal equipment to perform sounding reference signal transmission.
  • the terminal device sends SRS to the network device on the SRS area of N configuration subbands of the same size on the SRS bandwidth.
  • the subband is a non-configured subband, for example, the first subband or the last subband of the SRS bandwidth.
  • the terminal device sends the first SRS on the first subband and/or the second subband included in the SRS bandwidth, and sends the first SRS to the network device, where the first subband is The subband is configured, and the second subband is an unconfigured subband to solve the problem of unconfigured subbands in the SRS bandwidth.
  • the method may include:
  • the terminal device sends the first SRS to the network device in the SRS area of the N subbands of the SRS bandwidth of the sounding reference signal.
  • N is an integer greater than 1.
  • the N subbands are the first subband and/or the second subband.
  • the number of RB configurations in the subband is M, and M is greater than zero.
  • the initial configuration position of the SRS area in the subband is indicated by the network device, for example, by a group of SRS resources triggered by the second DCI.
  • the number of RB configurations of the subband can be indicated by a network device, or can be a number predefined in a communication protocol specification.
  • the number of RBs in the first subband is M, and the number of RBs in the second subband is less than M.
  • the first subband is a configured subband of the SRS bandwidth
  • the second subband is an unconfigured subband of the SRS bandwidth.
  • Each of the N subbands includes one SRS area.
  • the SRS area is composed of at least one RB.
  • the number of RBs in an SRS area is less than or equal to the number of RBs in the subband to which the SRS area belongs.
  • Each SRS region is continuous in the frequency domain and includes a preset number of RBs. The preset number is less than or equal to the number of RBs included in the subband, and can be adjusted according to actual conditions, and there is no specific limitation. Reducing the number of RBs used to transmit the first SRS on the subband helps to increase the power spectral density of the first SRS.
  • the terminal device determines the start position of the SRS area of the first subband as the start configuration position.
  • the terminal device determines the SRS area of the first subband by determining the starting position of the SRS area in the subband.
  • the terminal device sends the first SRS to the network device in the SRS area of the first subband.
  • the terminal device determines not to transmit the first SRS on the second subband; in other embodiments, the terminal device The first RB position available for sending SRS in the second subband is used as the start position of the SRS area of the second subband. The terminal device determines the starting position of the SRS area in the subband to determine the SRS area of the subband.
  • the number of RB configurations of the subband is 4.
  • the number of RBs in subband 2 and subband 3 is the number of RB configurations.
  • the SRS area includes 2 RBs, and the initial configuration position of the SRS area in the subband is 2.
  • the terminal device uses the second RB and the third RB of subband 2 and subband 3 to transmit the first SRS.
  • the number of RBs in subband 1 and subband 4 is less than the number of RB configurations, and the terminal device does not send the first SRS on subband 1.
  • the start position of the SRS area of subband 4 is the first RB position available for sending SRS.
  • the position of the first RB that can be used to send SRS in subband 4 is 1, so the SRS area of subband 4 is the first RB and the second RB.
  • the terminal device transmits the first SRS through the first RB and the second RB of subband 4.
  • FIG. 7 is a flowchart of a sounding reference signal transmission method provided by an embodiment of the application. As shown in FIG. 7, the method is a method for network equipment to perform sounding reference signal transmission. The method may include:
  • the network device receives the first SRS.
  • the first SRS is sent by the terminal device on the SRS area included in the N subbands of the SRS bandwidth, where N is greater than 1; the N subbands are the first subband and/or the second subband, and the number of RBs in the first subband is M , The number of RBs in the second subband is less than M; each subband in the N subbands includes an SRS region, and the number of resource blocks RB in the SRS region is less than or equal to the number of RBs in the subband to which the SRS region belongs.
  • the first SRS is sent by the terminal device on the L SRS regions of the N subbands in the SRS bandwidth.
  • L is less than or equal to N.
  • the terminal device does not send the first SRS on the second subband, or the terminal device determines that the start position of the SRS area of the second subband is the first one that can be used to send SRS To determine the SRS area of the second subband, and send the first SRS on the SRS area of the second subband.
  • L is equal to N
  • the terminal device does not transmit the second SRS on the second subband of the N subbands, L is less than N .
  • FIG. 8 is a flowchart of a method for transmitting sounding reference information according to an embodiment of the application. As shown in FIG. 8, the method illustrates the interaction process between a network device and a terminal device. Figure 8 is a further refinement and improvement of the methods in Figure 2, Figure 5, Figure 6 and Figure 7. The method may include:
  • the network device sends the SRS configuration information and the second DCI to the terminal device.
  • the network device after sending the SRS configuration information to the terminal device, the network device sends the second DCI to the network device, and the second DCI is used to trigger a group of SRS resources in the SRS configuration information.
  • a group of SRS resources triggered by the second DCI is used for the terminal device to send the first SRS.
  • a group of SRS resources includes frequency domain position (freqDomainPosition) and/or frequency domain shift (freqDomainShift).
  • a group of SRS resources further includes cyclic shift, and/or transmission comb related parameters, and/or OFDM symbol parameters, and/or SRS parameters such as SRS sequence ID.
  • the cyclic shift parameter includes the candidate position of the cyclic shift of the SRS in the RB.
  • the SRS resource further includes the initial configuration position (local starting PRB index) information of the SRS area in the subband.
  • the terminal device uses the SRS resource triggered by the second DCI to send the first sounding reference signal SRS to the network device in the SRS area of the N subbands of the SRS bandwidth.
  • the SRS bandwidth is an uplink system bandwidth or a partial bandwidth (bandwidth part, BWP) of a terminal equipment (use equipment, UE) or a bandwidth allocated by the terminal.
  • BWP bandwidth part
  • the N subbands of the SRS bandwidth are N frequency bands obtained by dividing the SRS bandwidth in the frequency domain.
  • Each of the N subbands includes one SRS area.
  • the SRS area is composed of at least one RB.
  • the number of RBs in an SRS area is less than or equal to the number of RBs in the subband to which the SRS area belongs.
  • Each SRS region is continuous in the frequency domain and includes a preset number of RBs. The preset number is less than or equal to the number of RBs included in the subband, and can be adjusted according to actual conditions, and there is no specific limitation. Reducing the RB data used to transmit the first SRS on the subband is beneficial to improving the power spectral density of the first SRS.
  • the number of RB configurations in the subband of the SRS bandwidth is M, and M is greater than zero.
  • the N subbands of the SRS bandwidth include the first subband and the second subband.
  • the terminal device determines the start position of the SRS area of the first subband as the start configuration position.
  • the terminal device determines not to transmit the first SRS on the second subband; in other embodiments, the terminal device sets the first SRS in the second subband
  • the positions of two RBs that can be used to send SRS are used as the starting position of the SRS area of the second subband.
  • the terminal device determines the starting position of the SRS area in the subband to determine the SRS area of the subband. Because in the current sounding reference signal step-by-step transmission scheme, when the number of RBs in the subband is less than the RB configuration data of the subband, the subband is a non-configured subband, such as the first subband of the SRS bandwidth. Or the last subband is an unconfigured subband, and how the terminal device sends SRS in the unconfigured subband has not yet proposed a solution. In this implementation, the problem of how the terminal device sends SRS on the unconfigured subband is solved in two ways.
  • the network device sends the first DCI to the terminal device.
  • the first DCI includes subband indication information, and the subband indication information is used to instruct the terminal device to send the second SRS on the target subband.
  • the first DCI is also used to indicate the SRS resource used by the terminal device to send the second SRS.
  • the SRS resource used by the terminal device to send the second SRS is the SRS resource information used by the terminal device to send the first SRS, including cyclic shift, and/or transmission comb related parameters, and/or OFDM symbol parameters, and/or SRS parameters such as SRS sequence ID, optionally, further include frequency domain position (freqDomainPosition), and/or frequency domain shift (freqDomainShift).
  • the terminal After receiving the first DCI, the terminal obtains the SRS resource triggered by the second DCI.
  • the network device determines the target subband from the N subbands according to the received power of the first SRS.
  • the network device determines the target subband from the N subbands according to the received power of the first SRS in the N subbands.
  • the received power of the first SRS of the network device in the target subband is the highest received power of the first SRS in the N subbands.
  • the received power of the first SRS of the network device in the target subband exceeds the power threshold.
  • the power threshold can be adjusted according to actual conditions. No restrictions.
  • the terminal device obtains subband indication information from the first DCI.
  • the subband indication information is used to indicate the target subband among the N subbands.
  • the subband indication information includes the position code of the target subband on the SRS bandwidth.
  • the position code of the target subband is used to instruct the terminal device to determine the target subband from the N subbands.
  • the subband indication information may be one subband location information or multiple subband location information, and each subband location information includes at least one location code.
  • the format of the subband indication information is [location/subband location information 0, location/subband location information 1, ..., location/subband location information N],
  • One target subband location information included in the multiple subband location information is the subband location information of the terminal device.
  • the terminal device determines the target subband information from the multiple subband location information according to the location indication information, and the location indication information is used to indicate the target subband.
  • the position of the band position information in the subband indication information in the case that the subband indication information includes one piece of subband position information, the format of the subband indication information is [position/subband position information].
  • the subband location information is used to indicate the location code of the target subband.
  • the subband location information is used to indicate the location codes of the target subbands of multiple terminal devices.
  • the terminal device determines the location code of the target subband of the terminal device according to the subband location information and the SRS resource triggered by the second DCI.
  • the position code of the target subband is the sum of the position code included in the subband position information and the initial configuration position, and performs a modulo operation with N The results obtained.
  • the position code of the target subband is the sum of the position code included in the subband position information, the starting position code, and the first modulus result, and the modulus operation is performed with N to obtain the result of.
  • the first modulo result is obtained by modulating the difference between N and M with the candidate position.
  • the terminal device obtains information from the subband according to the location indication information.
  • the target subband location information is acquired from the band indication information, and the location code included in the target subband location information is used as the location code of the target subband.
  • the location indication information is indicated by the network device.
  • the location indication information is included in the SRS configuration information; in other embodiments, the location indication information is included in other configuration information.
  • the terminal device sends the second SRS to the network device on the target subband.
  • the terminal device sends the second SRS to the network device on the target subband according to the SRS resource triggered by the second DCI. Specifically, the terminal device obtains the cyclic shift in the SRS resource, and/or transmission comb related parameters, and/or OFDM symbol parameters, and/or SRS sequence ID and other SRS parameters, and optionally, also includes frequency domain position ( freqDomainPosition), and/or frequency domain shift (freqDomainShift). And through the acquired SRS parameters, the second SRS is sent to the network device.
  • the terminal device may use all RBs of the target subband, or may use some RBs of the target subband to send the second SRS, so as to further detect the target subband through the second SRS.
  • the terminal device obtains the subband indication information from the first downlink control information, so as to send the SRS to the network device on the target subband indicated by the subband indication information.
  • FIG. 9 is a terminal device provided by an embodiment of the application. As shown in FIG. 9, the terminal device may include:
  • the sending unit 901 is configured to send the first sounding reference signal SRS to the network device in the SRS area of the N subbands of the SRS bandwidth of the sounding reference signal; N is greater than 1; each subband in the N subbands includes an SRS area, SRS The number of resource blocks RB in the area is less than or equal to the number of RBs in the subband to which the SRS area belongs;
  • the receiving unit 902 is configured to receive the first downlink control information DCI;
  • the obtaining unit 903 is configured to obtain subband indication information from the first DCI, where the subband indication information is used to indicate a target subband among the N subbands;
  • the sending unit 901 is further configured to send the second SRS to the network device on the target subband.
  • the receiving unit 902 is further configured to receive SRS configuration information and a second DCI.
  • the second DCI is used to trigger a group of SRS resources in the SRS configuration information and instruct the terminal device to use the SRS resources to send the first SRS.
  • the sending unit 901 is specifically configured to use the SRS resource triggered by the second DCI to send the second SRS to the network device on the target subband.
  • the terminal device further includes a determining unit 904, configured to determine the position code of the target subband on the SRS bandwidth according to the subband indication information and the SRS resource, and the position code of the target subband is used for The target subband is indicated in the N subbands.
  • the subband indication information includes subband location information;
  • the SRS resource includes the initial configuration location of the SRS area in the subband;
  • the determining unit 904 is specifically configured to encode the location included in the subband location information The sum of the initial configuration position and the modulo operation with N are performed to obtain the position of the target subband.
  • the subband indication information includes subband position information; the SRS resource also includes cyclic shift candidate positions; the number of subband RB configurations in the SRS bandwidth is M; the determining unit 904 is specifically configured to : Perform a modulo operation on the candidate position and the difference between N and M to obtain the first modulo result; take the sum of the position code, the initial configuration position and the first modulo result included in the subband position information, and take it with N Modular operation to obtain the position code of the target subband.
  • the subband indication information includes at least two subband location information
  • the receiving unit 902 is further configured to receive location indication information
  • the location indication information is used to indicate the target subband location in the at least two subband location information.
  • Information; the location code included in the target subband location information is the location code of the target subband on the SRS bandwidth, and the location code of the target subband is used to indicate the target subband in the N subbands.
  • the number of RB configurations in the subband of the SRS bandwidth is M; the SRS resource includes the initial configuration position of the sub-SRS region in the subband; the sending unit 901 is specifically configured to: When the number of RBs in one subband is M, the start position of the SRS area of the first subband is determined to be the start configuration position, and the first subband is any subband of the N subbands; In the SRS area, the first SRS is sent to the network device.
  • the number of RB configurations in the subband of the SRS bandwidth is M; the sending unit 901 is specifically configured to: when the number of RBs in the second subband in the N subbands is less than M, determine that the number of RBs is not in the first subband.
  • the first SRS is transmitted on the two subbands; or, the start position of the SRS area of the second subband is determined to be the first RB position in the second subband that can be used to send SRS, and the second subband is any of the N subbands.
  • One subband, and in the SRS area of the second subband send the first SRS to the network device.
  • FIG. 10 is a network device provided by an embodiment of the application. As shown in FIG. 10, the network device may include:
  • the receiving unit 1001 is configured to receive a first SRS sent by a terminal device.
  • the first SRS is sent by the terminal device in the SRS area included in the N subbands of the SRS bandwidth, where N is greater than 1, and each subband includes one in the N subbands.
  • the number of resource blocks RB in the SRS area is less than or equal to the number of RBs in the subband to which the SRS area belongs;
  • the sending unit 1002 is configured to send a first DCI to a terminal device, where the first DCI includes subband indication information, and the subband indication information is used to instruct the terminal device to send a target subband of the second SRS;
  • the receiving unit 1001 is further configured to receive the second SRS sent by the terminal device on the target subband.
  • the sending unit 1002 is also used to send SRS configuration information and a second DCI to the terminal device, and the second DCI is used to trigger a group of SRS resources in the SRS configuration information and instruct the terminal device to use the SRS resources Send the first SRS.
  • the first DCI is also used to instruct the terminal device to use the SRS resource triggered by the second DCI to send the second SRS to the network device.
  • the subband indication information includes a subband location information; the SRS resource includes the initial configuration location of the SRS area in the subband; the location code of the target subband is the same as the location code included in the subband location information.
  • the sum of the initial configuration positions is the result of the modulo operation with N; the position code of the target subband is used to indicate the target subband in the N subbands.
  • the subband indication information includes a subband position information;
  • the SRS resource includes the start configuration position of the SRS area in the subband and the candidate position of the cyclic shift; the number of RB configurations of the subband in the SRS bandwidth Is M;
  • the position code of the target subband is the sum of the position code included in the subband position information, the initial configuration position, and the first modulus result, and the result obtained by performing the modulo operation with N; the first modulus result passes the candidate The position is obtained by modulo the difference between N and M.
  • the subband indication information includes at least two subband location information; the sending unit 1002 is also used to send location indication information to the terminal device; the location indication information is used to determine the target from the at least two subband location information Subband location information; the location code included in the target subband location information is the location code of the target subband; the location code of the target subband is used to indicate the target subband in N subbands.
  • the network device further includes: a determining unit 1003, configured to determine a target subband among the N subbands according to the received power of the first SRS.
  • FIG. 11 is a terminal device provided by an embodiment of the application. As shown in FIG. 11, the terminal device may include:
  • the sending unit 1101 sends the first SRS to the network device in the SRS area of the N subbands of the SRS bandwidth, where N is greater than or equal to 1; the number of RB configurations of the subbands of the SRS bandwidth is M; the N subbands are the first subbands And/or the second subband, the number of RBs in the first subband is M, and the number of RBs in the second subband is less than M; each subband in the N subbands includes an SRS area, and the number of resource blocks in the SRS area is less than or equal to The number of RBs in the subband to which the SRS area belongs.
  • the sending unit 1101 is specifically configured to: when the N subbands include the first subband, the terminal device determines the start position of the SRS area of the first subband as the start configuration position ; The terminal device sends the first SRS to the network device in the SRS area of the first subband in the N subbands.
  • the sending unit 1101 is specifically configured to: when the N subbands include the second subband, the terminal device determines not to send the first SRS on the second subband; or, the terminal device determines The start position of the SRS area of the second subband is the first RB position in the second subband that can be used to send SRS, and the first SRS is sent to the network device on the SRS area of the second subband in the N subbands .
  • FIG. 12 is a network device provided by an embodiment of this application. As shown in FIG. 12, the network device may include:
  • the receiving unit 1201 is configured to receive a first SRS, and the first SRS is sent by a terminal device on the SRS area included in the N subbands of the SRS bandwidth, where N is greater than or equal to 1, and the N subbands are the first subband and/or the first subband.
  • the above division of the various modules of the terminal device and the network device is only a division of logical functions, and may be fully or partially integrated into a physical entity in actual implementation, or may be physically separated.
  • the above modules can be separately established processing elements, or they can be integrated into the same chip for implementation.
  • they can also be stored in the storage element of the controller in the form of program code, which is called and combined by a certain processing element of the processor.
  • various modules can be integrated together or implemented independently.
  • the processing element here can be an integrated circuit chip with signal processing capabilities.
  • each step of the above method or each of the above modules can be completed by an integrated logic circuit of hardware in the processor element or instructions in the form of software.
  • the processing element may be a general-purpose processor, such as a central processing unit (English: central processing unit, CPU for short), or one or more integrated circuits configured to implement the above methods, for example: one or more specific integrated circuits Circuit (English: application-specific integrated circuit, abbreviation: ASIC), or, one or more microprocessors (English: digital signal processor, abbreviation: DSP), or, one or more field programmable gate arrays (English: field-programmable gate array, referred to as FPGA), etc.
  • a central processing unit English: central processing unit, CPU for short
  • integrated circuits configured to implement the above methods, for example: one or more specific integrated circuits Circuit (English: application-specific integrated circuit, abbreviation: ASIC), or, one or more microprocessors (English: digital signal processor, abbreviation: DSP), or, one or more field programmable gate arrays (English: field-programmable gate array, referred to as FPGA), etc.
  • ASIC application-specific integrated circuit
  • DSP digital signal processor
  • the network device 1300 includes:
  • the receiver 1301, the transmitter 1302, the processor 1303, and the memory 1304 (the number of processors 1303 in the network device 1300 may be one or more, and one processor is taken as an example in FIG. 13).
  • the receiver 1301, the transmitter 1302, the processor 1303, and the memory 1304 may be connected by a bus or in other ways. In FIG. 10, a bus connection is taken as an example.
  • the memory 1304 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1303. A part of the memory 1304 may also include a non-volatile random access memory (NVRAM).
  • NVRAM non-volatile random access memory
  • the memory 1304 stores an operating system and operating instructions, executable modules or data structures, or a subset of them, or an extended set of them.
  • the operating instructions may include various operating instructions for implementing various operations.
  • the operating system may include various system programs for implementing various basic services and processing hardware-based tasks.
  • the processor 1303 controls the operation of the network device, and the processor 1303 may also be referred to as a central processing unit (CPU).
  • CPU central processing unit
  • the various components of the network device are coupled together through a bus system.
  • the bus system may also include a power bus, a control bus, and a status signal bus.
  • various buses are referred to as bus systems in the figure.
  • the methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1303 or implemented by the processor 1303.
  • the processor 1303 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 1303 or instructions in the form of software.
  • the aforementioned processor 1303 may be a general-purpose processor, a digital signal processing (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or Other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processing
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1304, and the processor 1303 reads the information in the memory 1304, and completes the steps of the foregoing method in combination with its hardware.
  • the receiver 1301 can be used to receive input digital or character information, and to generate signal input related to the relevant settings and function control of the network device.
  • the transmitter 1302 can include display devices such as a display screen.
  • the transmitter 1302 can be used to output numbers through an external interface. Or character information.
  • the processor 1303 is configured to execute the sounding reference signal transmission method executed by the aforementioned network device side.
  • the terminal device 1400 includes:
  • the receiver 1401, the transmitter 1402, the processor 1403, and the memory 1404 (the number of processors 1403 in the terminal device 1400 may be one or more, and one processor is taken as an example in FIG. 14).
  • the receiver 1401, the transmitter 1402, the processor 1403, and the memory 1404 may be connected by a bus or in other ways, where the bus connection is taken as an example in FIG. 14.
  • the memory 1404 may include a read-only memory and a random access memory, and provides instructions and data to the processor 1403. A part of the memory 1404 may also include NVRAM.
  • the memory 1404 stores an operating system and operating instructions, executable modules or data structures, or a subset of them, or an extended set of them.
  • the operating instructions may include various operating instructions for implementing various operations.
  • the operating system may include various system programs for implementing various basic services and processing hardware-based tasks.
  • the processor 1403 controls the operation of the terminal device, and the processor 1403 may also be referred to as a CPU.
  • the various components of the terminal device are coupled together through a bus system.
  • the bus system may also include a power bus, a control bus, and a status signal bus.
  • various buses are referred to as bus systems in the figure.
  • the methods disclosed in the foregoing embodiments of the present application may be applied to the processor 1403 or implemented by the processor 1403.
  • the processor 1403 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method can be completed by an integrated logic circuit of hardware in the processor 1403 or instructions in the form of software.
  • the aforementioned processor 1403 may be a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory 1404, and the processor 1403 reads the information in the memory 1404, and completes the steps of the foregoing method in combination with its hardware.
  • the processor 1403 is configured to execute the detection signal detection method executed on the terminal device side.
  • a computer-readable storage medium stores one or more instructions.
  • the detection signal detection method of the embodiment of the present application is implemented.

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Abstract

本申请实施例公开了一种探测参考信号传输方法及相关产品，该方法包括：终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；终端设备接收第一下行控制信息DCI；终端设备从第一DCI中获取子带指示信息，子带指示信息用于指示N个子带中的目标子带；终端设备在目标子带上，向网络设备发送第二SRS。在本申请中，终端设备从第一下行控制信息中获取子带指示信息，从而在子带指示信息指示的目标子带上，向网络设备发送SRS。

Description

探测参考信号传输方法及相关产品 技术领域
本发明涉及通信领域，尤其涉及一种探测参考信号传输方法及相关产品。
背景技术
在第五代(5th generation，5G)通信中，通信标准17版(release 17，Rel-17)计划引入了一种部分频率探测(partial sounding across frequency)方案，以解决探测参考信息(sounding reference signal，SRS)覆盖的问题。
在现有的一种方案中，SRS带宽被分为至少两个子带。该方法用于具体分为两步。第一步为终端设备在每个子带的资源块(resource block，RB)上向网络设备发送探测参考信息。第二步为网络设备通过评估接收到的每个子带宽的SRS，从至少两个子带中确定一个或者多个目标子带，并指示终端设备在目标子带宽上再次发送SRS，以进一步进行信道探测。
但是目前，终端设备如何获知目标子带在SRS带宽中的位置，并在目标子带上发送SRS，尚未有解决方案。
发明内容
本申请实施例提供了一种探测参考信号传输方法及相关产品，终端设备从第一下行控制信息中获取子带指示信息，从而在子带指示信息指示的目标子带上，向网络设备发送SRS。
第一方面，本申请实施例提供了一种探测参考信号传输方法，该方法可包括：所述终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；所述终端设备接收第一下行控制信息DCI；所述终端设备从所述第一DCI中获取子带指示信息，所述子带指示信息用于指示所述N个子带中的目标子带；所述终端设备在所述目标子带上，向网络设备发送第二SRS。
在一个可选的实现方式中，在所述终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向所述网络设备发送第一探测参考信号SRS之前，所述方法还包括：所述终端设备接收SRS配置信息和第二DCI，所述第二DCI用于触发所述SRS配置信息中的一组SRS资源并指示所述终端设备使用所述SRS资源发送所述第一SRS。
在一个可选的实现方式中，所述终端设备在所述目标子带上，向网络设备发送第二SRS，包括：所述终端设备使用所述第二DCI触发的所述SRS资源，在所述目标子带上向所述网络设备发送第二SRS。
在一个可选的实现方式中，所述方法在所述终端设备从所述第一DCI中获取子带指示信息之后，在所述述终端设备在所述目标子带上，向网络设备发送第二SRS之前，还包括：所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽 上的位置编码，所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
在一个可选的实现方式中，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置；所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽上的位置编码，包括：所述终端设备将所述子带位置信息包括的位置编码与所述起始配置位置之和，与所述N进行取模运算，得到所述目标子带的位置。
在一个可选的实现方式中，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置和循环移位的候选位置；所述SRS带宽中子带的RB配置数量为M；所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽上的位置编码，包括：所述终端设备将所述候选位置，与所述N与所述M之差进行取模运算，得到第一取模结果；所述终端设备将所述子带位置信息包括的位置编码、所述起始配置位置和所述第一取模结果之和，与所述N进行取模运算，得到所述目标子带的位置编码。
在一个可选的实现方式中，所述子带指示信息包括至少两个子带位置信息；在所述终端设备接收第一DCI之前，所述方法还包括：所述终端设备接收位置指示信息，所述位置指示信息用于指示所述至少两个子带位置信息中的目标子带位置信息；所述目标子带位置信息包括的位置编码为所述目标子带在所述SRS带宽上的位置编码，所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
在一个可选的实现方式中，所述SRS带宽的子带的RB配置数量为M；所述SRS资源包括子所述SRS区域在子带的起始配置位置；所述终端设备在SRS带宽的N个子带包括的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：在所述N个子带中第一子带的RB数量为所述M的情况下，所述终端设备确定所述第一子带的SRS区域的起始位置为所述起始配置位置，所述第一子带为所述N个子带的任一子带；所述终端设备在所述第一子带的SRS区域上，向所述网络设备发送所述第一SRS。
在一个可选的实现方式中，所述SRS带宽的子带的RB配置数量为M；所述终端设备在SRS带宽的N个子带包括的SRS区域上，向所述网络设备发送第一探测参考信号SRS，还包括：在所述N个子带中第二子带的RB数量小于所述M的情况下，所述终端设备确定不在所述第二子带上发送所述第一SRS；或，所述终端设备确定所述第二子带的SRS区域的起始位置为所述第二子带中第一个可用于发送SRS的RB位置，所述第二子带为所述N个子带的任一子带，并在所述第二子带的SRS区域上，向所述网络设备发送所述第一SRS。
第二方面，本申请实施例提供了一种探测参考信号传输方法，该方法可包括：终端设备在SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS，所述N大于1；所述SRR带宽的子带的RB配置数量为M；所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
在一个可选的实现方式中，所述SRS区域在子带的起始配置位置通过所述网络设备指示；所述终端设备在SRS带宽的N个子带的SRS区域上，向所述网络设备发送第一探测参 考信号SRS，包括：在所述N个子带包括第一子带的情况下，所述终端设备确定所述第一子带的SRS区域的起始位置为所述起始配置位置；所述终端设备在所述N个子带中所述第一子带的SRS区域上，向所述网络设备发送所述第一SRS。
在一个可选的实现方式中，述终端设备在SRS带宽的N个子带包括的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：在所述N个子带包括第二子带的情况下，所述终端设备确定不在所述第二子带上发送所述第一SRS；或，所述终端设备确定所述第二子带的SRS区域的起始位置为所述第二子带中第一个可用于发送SRS的RB位置，并在所述N个子带中所述第二子带的SRS区域上，向所述网络设备发送所述第一SRS。
第三方面，本申请实施例提供了一种探测参考信号传输方法，该方法可包括：网络设备接收终端设备发送的第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；网络设备向所述终端设备发送第一DCI，所述第一DCI包括子带指示信息，所述子带指示信息用于指示所述终端设备发送第二SRS的目标子带；所述网络设备接收所述终端设备在所述目标子带上发送的所述第二SRS。
在一个可选的实现方式中，在所述网络设备接收终端设备发送的第一SRS之前，所述方法还包括：所述网络设备向所述终端设备发送SRS配置信息和第二DCI，所述第二DCI用于触发所述SRS配置信息中的一组SRS资源并指示所述终端设备使用所述SRS资源发送所述第一SRS。
在一个可选的实现方式中，所述第一DCI还用于指示所述终端设备使用所述第二DCI触发的所述SRS资源向所述网络设备发送所第二SRS。
在一个可选的实现方式中，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置；所述目标子带的位置编码为所述子带位置信息包括的位置编码与所述起始配置位置之和，与所述N进行取模运算的结果；所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
在一个可选的实现方式中，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置和循环移位的候选位置；所述SRS带宽中子带的RB配置数量为M；所述目标子带的位置编码为将所述子带位置信息包括的位置编码、所述起始配置位置和所述第一取模结果之和，与所述N进行取模运算得到的结果；所述第一取模结果通过所述候选位置，与所述N与所述M之差进行取模运算得到。
在一个可选的实现方式中，所述子带指示信息包括至少两个子带位置信息；在所述网络设备向所述终端设备发送第一DCI之前，所述方法还包括；所述网络设备向所述终端设备发送位置指示信息；所述位置指示信息用于从所述至少两个子带位置信息中确定所述目标子带位置信息；所述目标子带位置信息包括的位置编码为所述目标子带的位置编码；所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
在一种可选的实现方式中，在所述网络设备接收终端设备发送的第一SRS之前，在所述网络设备向所述终端设备发送第一DCI之后，所述方法还包括：所述网络设备根据第一SRS的接收功率，在所述N个子带中确定所述目标子带。
第四方面，本申请实施例提供了一种探测参考信号传输方法，该方法可包括：网络设备接收第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
第五方面，本申请实施例提供了一种终端设备，该终端设备包括：发送单元，用于在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；接收单元，用于接收第一下行控制信息DCI；获取单元，用于从所述第一DCI中获取子带指示信息，所述子带指示信息用于指示所述N个子带中的目标子带；所述发送单元，还用于在所述目标子带上，向网络设备发送第二SRS。
第六方面，本申请实施例提供了一种终端设备，该终端设备包括：发送单元，在SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS，所述N大于或等于1；所述SRR带宽的子带的RB配置数量为M；所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
第七方面，本申请实施例提供了一种网络设备，该网络设备包括：接收单元，用于接收终端设备发送的第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；发送单元，用于向所述终端设备发送第一DCI，所述第一DCI包括子带指示信息，所述子带指示信息用于指示所述终端设备在所述目标子带上发送第二SRS；所述接收单元，还用于接收所述终端设备发送的所述第二SRS。
第八方面，本申请实施例提供了一种网络设备，该网络设备包括：接收单元，用于接收第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于或等于1；所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
第九方面，本申请实施例提供了一种终端设备，该终端设备包括接收器和发送器，还包括：处理器，适于实现一条或多条指令；以及，计算机存储介质，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由所述处理器加载并执行如上述第一方面或第二方面中任一项所述的方法。
第十方面，本申请实施例提供了一种网络设备，该网络设备包括接收器和发送器，还包括：处理器，适于实现一条或多条指令；以及，计算机存储介质，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由所述处理器加载并执行如上述第二方 面或第三方面中任一项所述的方法。
第十一方面，本申请实施例提供一种通信系统，所述通信系统包括网络设备和终端设备，所述终端设备可用于执行如第一方面中任一项所述的方法，所述网络设备用于执行如第三方面中任一项所述的方法。
第十二方面，本申请实施例提供一种通信系统，所述通信系统包括网络设备和终端设备，所述终端设备可用于执行如第二方面中任一项所述的方法，所述网络设备用于执行如第四方面中任一项所述的方法。
第十三方面，本申请实施例提供了一种计算机存储介质，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由处理器加载并执行如上述第一方面至上述第四方面中任一项所述的方法。
本申请实施例提供了一种探测参考信号传输方法及相关产品，终端设备从第一下行控制信息中获取子带指示信息，从而在子带指示信息指示的目标子带上，向网络设备发送SRS。
附图说明
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图1为本申请实施例提供的一种网络架构示意图；
图2为本申请实施例提供的一种探测参考信号传输方法流程图；
图3为本申请实施例提供的一种第一SRS和第二SRS的示意图；
图4为本申请实施例提供的一种第一SRS的示意图；
图5为本申请实施例提供的另一种探测参考信号传输方法流程图；
图6为本申请实施例提供的又一种探测参考信号传输方法流程图；
图7为本申请实施例提供的又一种探测参考信号传输方法流程图；
图8为本申请实施例提供的又一种探测参考信号传输方法流程图；
图9为本申请实施例提供的一种终端设备的结构示意图；
图10为本申请实施例提供的一种网络设备的结构示意图；
图11为本申请实施例提供的另一种终端设备的结构示意图；
图12为本申请实施例提供的另一种网络设备的结构示意图；
图13为本申请实施例提供的又一种网络设备的结构示意图；
图14为本申请实施例提供的又一种终端设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图对本申请实施例中的技术方案进行描述。
为了使本技术领域的人员更好地理解本申请实施例方案，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述，显然，所描述的实施例仅仅是本申请一部分的实施例，而不是全部的实施例。
本申请的说明书实施例和权利要求书及上述附图中的术语“第一”、“第二”、和“第三” 等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。此外，术语“包括”和“具有”以及他们的任何变形，意图在于覆盖不排他的包含，例如，包含了一系列步骤或模块。方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块，而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。“和/或”用于表示在其所连接的两个对象之间选择一个或全部。
本申请实施例提供了一种探测参考信号传输方法及相关产品，终端设备从第一下行控制信息中获取子带指示信息，从而在子带指示信息指示的目标子带上，向网络设备发送SRS。
本申请实施例中的终端设备可以指用户设备、接入终端设备、用户单元、用户站、移动站、移动台、远方站、远程终端设备、移动设备、用户终端设备、终端设备、无线通信设备、用户代理或用户装置。终端设备还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备等，本申请实施例对此并不限定。
此外，在本申请实施例中，终端设备还可以是物联网(internet of things，IoT)系统中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通讯(global system of mobile communication，GSM)系统或码分多址(code division multiple Access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple Access，WCDMA)系统中的基站(node b，NB)，还可以是LTE系统中的演进型基站(evolutional node b，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，本申请实施例并不限定。
图1是本申请实施例适用的通信系统的示意性架构图。该架构图包括：网络设备102，网络设备102可包括1个天线或多个天线例如，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)。
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。然而，可以理解，网络设备102可以与类似于终端设备116或终端设备122的任意数目的终端设备通信。终端设备116和122可以是例如蜂窝电话、智能电话、便携式电脑、手持通信设备、手持计算设备、卫星无线电装置、全球定位系统、PDA和/或用于在无线通信系统100上通信的任意其它适合设备。
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(也称为下行链路)118向终端设备116发送信息，并通过反向链路(也称为上行链路) 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。
此外，该通信系统100可以是5G网络或者其他网络，图1只是举例的简化示意图，网络中还可以包括其他网络设备，本申请对此并不限制，图1中未予以画出。
图2为本申请实施例提供的一种探测参考信号传输方法流程图，如图2所示，该方法为终端设备进行探测参考信号传输的方法。该方法可包括：
201、终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS。
SRS带宽为上行系统带宽或者终端设备(use equipment，UE)的部分带宽(bandwidth part，BWP)或者终端设备被网络设备分配的带宽。在SRS带宽的N个子带中，每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或者等于SRS区域所属子带的RB数量。
一个带宽的子带为将带宽在频域上进行分割得到的频带。在本申请实施例中，子带具有如下特征：子带在频域上包括连续的多个RB；在一个带宽中，各个子带的区域不会重叠；在一个带宽中，各个子带的大小一般是相同的，相同大小的子带为配置子带，但由于带宽可能不是配置子带的倍数，在一个带宽中，存在子带不是配置子带，例如一个带宽中的第一个子带或者最后一个子带。
如图3所示，第一SRS可以是跳频SRS，还可以是非跳频SRS。图3描述了跳频的第一SRS和非跳频的第一SRS。跳频的第一SRS和非跳频的第一SRS都通过子带的SRS区域进行传输。如图3所示，SRS区域包括的RB数据少于子带包括的RB数据。在第一SRS发射功率不变的情况下，通过在子带的SRS区域上传输第一SRS，可以提高第一SRS的功率谱密度(power spectral density，PSD)。
需要说明的是，在本申请提供的实施例中，RB(resource block，资源块)可以为物理资源块(physical resource block，PRB)，或者公共资源块(common resource block，CRB)，或者虚拟资源块(virtual resource block，VRB)。
202、终端设备接收第一下行控制信息(downlink control information，DCI)。
终端设备通过物理下行控制信道接收第一DCI，第一DCI用于指示终端设备发送第二SRS以及终端设备发送第二SRS所用的SRS资源。第一DCI可以是公共的下行控制信息(common DCI)，也可以是终端设备专属的DCI。
203、终端设备从第一DCI中获取子带指示信息。
子带指示信息用于指示N个子带中的目标子带。
在一些实施例中，在第一DCI为终端设备专属的DCI的情况下，子带指示信息包括目标子带在SRS带宽上的位置编码。目标子带的位置编码用于指示终端设备从N个子带中确定目标子带。在另一些实施中，在第一DCI为公共的下行控制信息的情况下，子带指示信息可以是一个子带位置信息，也可以是多个子带位置信息。子带位置信息用于指示终端设备目标子带的位置编码。
204、终端设备在目标子带上，向网络设备发送第二SRS。
终端设备可以使用目标子带的所有RB，也可以使用目标子带的部分RB发送第二SRS，以通过第二SRS对目标子带进行进一步探测。需要说明的是，目标子带可以是N个子带中一个子带，也可以是N个子带中的M个子带，1<M≤N。
如图3所示，终端设备通过N个子带中的一个子带向网络设备发送第二SRS。用于发送第二SRS的子带为目标子带。在图3中，目标子带为子带2，终端设备使用目标子带的所有RB发送第二SRS。
图5为本申请实施例提供的一种探测参考信号传输方法流程图，如图5所示，该方法为网络设备进行探测参考信号传输的方法。该方法可包括：
501、网络设备接收终端设备发送的第一SRS。
第一SRS通过终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，N大于1；在N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或等于SRS区域所属子带的RB数量。
502、网络设备向终端设备发送第一DCI。
第一DCI包括子带指示信息，子带指示信息用于指示终端设备发送第二SRS的目标子带。网络设备发送的第一DCI可以是公共的DCI，也可以是终端设备专属的DCI。
在一些实施例中，终端设备使用目标子带的所有RB发送第二SRS，以提高探测的准确性。在另一些实施例中，终端设备使用目标子带的部分RB发送第二SRS，以提高第二SRS的功率谱密度。
可选的，网络设备在向终端设备发送第一DCI之前，网络设备根据第一SRS的接收功率，从N个子集中确定目标子带。网络设备根据第一SRS分别在N个子带中的接收功率，从N个子带中确定目标子带。在一些实施例中，目标子带为N个子带中的一个子带的情况下，网络设备在目标子带的第一SRS的接收功率为N个子带上第一SRS的最高接收功率。在另一些实施例中，目标子带为N个子带中的M个子带的情况下，网络设备在目标子带的第一SRS的接收功率超过功率阈值，功率阈值可根据实际情况进行调整，具体不做限制。
503、网络设备接收终端设备在目标子带上发送的第二SRS。
网络设备接收第二SRS，以根据第二SRS，进一步探测目标子带，以提高探测的准确性。第二SRS为终端设备在目标子带上发送的SRS。
图6为本申请实施例提供的一种探测参考信号传输方法流程图，如图6所示，该方法为终端设备进行探测参考信号传输的方法。终端设备在SRS带宽上N个相同大小的配置子带的SRS区域上向网络设备发送SRS，但在实际应用中发现，由于SRS带宽的大小不是配置子带的倍数，存在子带不是配置子带的情况，该子带为非配置子带，例如SRS带宽的第一个子带或最后一个子带。
如图6所示的方法，提出终端设备在SRS带宽包括的第一子带和/或第二子带上发送第一SRS的方案，向网络设备发送第一SRS，其中，第一子带为配置子带，第二子带为非配置子带，以解决SRS带宽存在非配置子带的问题。该方法可包括：
601、终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS。
需要说明的是，N为大于1的整数。N个子带为第一子带和/或第二子带。子带的RB 配置数量为M，M大于0。SRS区域在子带的起始配置位置通过网络设备进行指示，例如通过第二DCI触发的一组SRS资源进行指示。子带的RB配置数量可以是通过网络设备进行指示，也可以是一种通信协议规范中预定义的数量。第一子带的RB数量为M，第二子带的RB数量小于M。第一子带为SRS带宽的配置子带，第二子带为SRS带宽的非配置子带。
在N个子带中每个子带包括一个SRS区域。SRS区域由至少一个RB组成。一个SRS区域的RB数量小于或等于该SRS区域所属子带的RB数量。每个SRS区域在频域上连续且包括预设数量的RB。预设数量小于或者等于子带包括的RB数量，可根据实际情况调整，具体不做限制。在子带上减少用于发送第一SRS的RB数量，有利于提高第一SRS的功率谱密度。
在一种可选的方式中，在N个子带包括第一子带的情况下，终端设备确定第一子带的SRS区域的起始位置为起始配置位置。终端设备通过确定SRS区域在子带中的起始位置，以确定第一子带的SRS区域。终端设备在确定第一子带的SRS区域之后，在第一子带的SRS区域上，向网络设备发送第一SRS。
在一种可选的方式中，在N个子带包括第二子带的情况下，在一些实施中，终端设备确定不在第二子带上发送第一SRS；在另一些实施例中，终端设备将第二子带中第一个可用于发送SRS的RB位置作为第二子带的SRS区域的起始位置。终端设备确定SRS区域在子带的起始位置，来确定子带的SRS区域。
在如图4所示的第一SRS中，子带的RB配置数量为4。子带2和子带3的RB数量为RB配置数量。SRS区域包括2个RB，SRS区域在子带的起始配置位置为2。终端设备使用子带2和子带3的第2个RB和第3个RB发送第一SRS。子带1和子带4的RB数量小于RB配置数量，终端设备不在子带1上发送第一SRS。子带4的SRS区域的起始位置为第一可用于发送SRS的RB位置。在子带4中第一个可用于发送SRS的RB位置为1，因此子带4的SRS区域为第1个RB和第2个RB。终端设备通过子带4的第1个RB和第2个RB发送第一SRS。
图7为本申请实施例提供的一种探测参考信号传输方法流程图，如图7所示，该方法为网络设备进行探测参考信号传输的方法。该方法可包括：
701、网络设备接收第一SRS。
第一SRS通过终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，N大于1；N个子带为第一子带和/或第二子带，第一子带的RB数量为M，第二子带的RB数量小于M；N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或者等于SRS区域所属子带的RB数量。
在一种可选的实现方式中，在N个带宽包括第二子带的情况下，第一SRS通过终端设备在SRS带宽中N个子带的L个SRS区域上进行发送。L小于或等于N，在该实现方式中，终端设备不通过在第二子带上发送第一SRS，或终端设备确定第二子带的SRS区域的起始位置为第一个可用于发送SRS的RB位置，以确定第二子带的SRS区域，并在第二子带的SRS区域上发送第一SRS。在终端设备在N个子带的第二子带上发送第一SRS的情况下，L等于N；在终端设备在N个子带的第二子带上不发送第二SRS的情况下，L小于 N。
图8为本申请实施例提供的一种探测参考信息传输方法流程图，如图8所示，该方法示意了网络设备和终端设备的交互过程。图8是对图2、图5、图6和图7中的方法的进一步细化和完善。该方法可包括：
801、网络设备向终端设备发送SRS配置信息和第二DCI。
需要说明的是，网络设备在向终端设备发送SRS配置信息之后，再向网络设备发送第二DCI，第二DCI用于触发SRS配置信息中的一组SRS资源。第二DCI触发的一组SRS资源用于终端设备发送第一SRS。
一组SRS资源包括频域位置(freqDomainPosition)，和/或频域偏移(freqDomainShift)。可选的，一组SRS资源还包括循环移位，和/或传输梳齿相关参数，和/或OFDM符号参数，和/或SRS序列ID等SRS参数。循环移位参数包括SRS在RB内的循环移位的候选位置。可选的，在本申请的实施例中，该SRS资源还包括SRS区域在子带的起始配置位置(local starting PRB index)信息。
802、终端设备在SRS带宽的N个子带的SRS区域上，使用第二DCI触发的SRS资源向网络设备发送第一探测参考信号SRS。
SRS带宽为上行系统带宽或者终端设备(use equipment，UE)的部分带宽(bandwidth part，BWP)或终端分配的带宽。SRS带宽的N个子带为将SRS带宽在频域上进行分割得到的N个频带。
需要说明的是，N为大于1的整数。在N个子带中每个子带包括一个SRS区域。SRS区域由至少一个RB组成。一个SRS区域的RB数量小于或等于该SRS区域所属子带的RB数量。每个SRS区域在频域上连续且包括预设数量的RB。预设数量小于或等于子带包括的RB数量，可根据实际情况调整，具体不做限制。在子带上减少用于发送第一SRS的RB数据，有利于提高第一SRS的功率谱密度。
在一种可选的方式中，SRS带宽的子带的RB配置数量为M，M大于0。SRS带宽的N个子带包括第一子带和第二子带。在第一子带的RB数量为M的情况下，终端设备确定第一子带的SRS区域的起始位置为起始配置位置。在第二子带的RB数量小于M的情况下，在一些实施中，终端设备确定不在第二子带上发送第一SRS；在另一些实施例中，终端设备将第二子带中第一个可用于发送SRS的RB位置作为第二子带的SRS区域的起始位置。终端设备确定SRS区域在子带的起始位置，来确定子带的SRS区域。由于在目前的探测参考信号分步传输的方案中，在子带的RB数量少于子带的RB配置数据的情况下，该子带为非配置子带，例如SRS带宽的第一个子带或最后一个子带为非配置子带，终端设备如何在非配置子带发送SRS尚未提出方案，在该实现方式中，通过两种方式解决终端设备如何在非配置子带上发送SRS的问题。
803、网络设备向终端设备发送第一DCI。
第一DCI包括子带指示信息，子带指示信息用于指示终端设备在目标子带上发送第二SRS。可选的，第一DCI还用于指示终端设备发送第二SRS所用的SRS资源。
在一种可选的实现方式中，终端设备发送第二SRS所用的SRS资源为终端设备发送第一SRS所用的SRS资源信息，包括循环移位，和/或传输梳齿相关参数，和/或OFDM符号 参数，和/或SRS序列ID等SRS参数，可选地，还包括频域位置(freqDomainPosition)，和/或频域偏移(freqDomainShift)。终端在接收到第一DCI之后，获取第二DCI触发的SRS资源。
可选的，在网络设备发送第一DCI之前，网络设备根据第一SRS的接收功率，从N个子带中确定目标子带。网络设备根据第一SRS分别在N个子带中的接收功率，从N个子带中确定目标子带。在一些实施例中，目标子带为N个子带中的一个子带的情况下，网络设备在目标子带的第一SRS的接收功率为N个子带上第一SRS的最高接收功率。在另一些实施例中，目标子带为N个子带中的M个子带的情况下，网络设备在目标子带的第一SRS的接收功率超过功率阈值，功率阈值可根据实际情况进行调整，具体不做限制。
804、终端设备从第一DCI中获取子带指示信息。
子带指示信息用于指示N个子带中的目标子带。在第一DCI为终端设备专属的DCI的情况下，子带指示信息包括目标子带在SRS带宽上的位置编码。目标子带的位置编码用于指示终端设备从N个子带中确定目标子带。
在第一DCI为公共的下行控制信息的情况下，子带指示信息可以是一个子带位置信息，也可以是多个子带位置信息，每个子带位置信息包括至少一个位置编码。在子带指示信息包括多个子带位置信息的情况下，子带指示信息的格式为[位置/子带位置信息0，位置/子带位置信息1，…，位置/子带位置信息N]，其中多个子带位置信息包括的一个目标子带位置信息为终端设备的子带位置信息，终端设备根据位置指示信息从多个子带位置信息中确定目标子带信息，位置指示信息用于指示目标子带位置信息在子带指示信息中的位置；在子带指示信息包括一个子带位置信息的情况下，子带指示信息的格式为[位置/子带位置信息]。子带位置信息用于指示目标子带的位置编码。
在第一DCI为公共的下行控制信息，且在子带指示信息包括一个子带位置信息情况下，该子带位置信息用于指示多个终端设备的目标子带的位置编码。终端设备根据该子带位置信息和第二DCI触发的SRS资源确定该终端设备的目标子带的位置编码。在一些实施例中，若N小于或等于子带的RB配置数量M，则目标子带的位置编码为将子带位置信息包括的位置编码与起始配置位置之和，与N进行取模运算得到的结果。在另一些实施例中，若N大于M，则目标子带的位置编码为将子带位置信息包括的位置编码、起始位置编码和第一取模结果之和，与N进行取模运算得到的结果。第一取模结果通过候选位置，与N与M之差进行取模运算得到。
在第一DCI为公共的下行控制信息，且子带指示信息包括至少两个子带位置信息，且至少两个子带位置信息包括的目标子带位置信息的情况下，终端设备根据位置指示信息从子带指示信息中获取目标子带位置信息，并将目标子带位置信息包括的位置编码作为目标子带的位置编码。其中，位置指示信息通过网络设备进行指示。在一些实施例中，位置指示信息包含在SRS配置信息中；在另一些实施例中，位置指示信息包含在其他配置信息中，在网络设备向终端设备发送第一DCI之前，网络设备将位置指示信息发送至终端设备。
805、终端设备在目标子带上，向网络设备发送第二SRS。
可选的，终端设备根据第二DCI触发的SRS资源，在目标子带上，向网络设备发送第二SRS。具体的，终端设备获取该SRS资源中循环移位，和/或传输梳齿相关参数，和/或 OFDM符号参数，和/或SRS序列ID等SRS参数，可选地，还包括频域位置(freqDomainPosition)，和/或频域偏移(freqDomainShift)。并通过获取的SRS参数，向网络设备发送第二SRS。终端设备可以使用目标子带的所有RB，也可以使用目标子带的部分RB发送第二SRS，以通过第二SRS对目标子带进行进一步探测。
本申请实施例中，终端设备从第一下行控制信息中获取子带指示信息，从而在子带指示信息指示的目标子带上，向网络设备发送SRS。
图9为本申请实施例提供的一种终端设备，如图9所示，该终端设备可包括：
发送单元901，用于在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；N大于1；在N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或等于SRS区域所属子带的RB数量；
接收单元902，用于接收第一下行控制信息DCI；
获取单元903，用于从第一DCI中获取子带指示信息，子带指示信息用于指示N个子带中的目标子带；
发送单元901，还用于在目标子带上，向网络设备发送第二SRS。
在一个可选的实现方式中，接收单元902，还用于接收SRS配置信息和第二DCI，第二DCI用于触发SRS配置信息中的一组SRS资源并指示终端设备使用SRS资源发送第一SRS。
在一个可选的实现方式中，发送单元901，具体用于使用第二DCI触发的SRS资源，在目标子带上向网络设备发送第二SRS。
在一个可选的实现方式中，该终端设备还包括，确定单元904，用于根据子带指示信息和SRS资源，确定目标子带在SRS带宽上的位置编码，目标子带的位置编码用于在N个子带中指示目标子带。
在一个可选的实现方式中，子带指示信息包括一个子带位置信息；SRS资源包括SRS区域在子带的起始配置位置；确定单元904，具体用于将子带位置信息包括的位置编码与起始配置位置之和，与N进行取模运算，得到目标子带的位置。
在一个可选的实现方式中，子带指示信息包括一个子带位置信息；SRS资源还包括循环移位的候选位置；SRS带宽中子带的RB配置数量为M；确定单元904，具体用于：将候选位置，与N与M之差进行取模运算，得到第一取模结果；将子带位置信息包括的位置编码、起始配置位置和第一取模结果之和，与N进行取模运算，得到目标子带的位置编码。
在一个可选的实现方式中，子带指示信息包括至少两个子带位置信息，接收单元902还用于接收位置指示信息，位置指示信息用于指示至少两个子带位置信息中的目标子带位置信息；目标子带位置信息包括的位置编码为目标子带在SRS带宽上的位置编码，目标子带的位置编码用于在N个子带中指示目标子带。
在一个可选的实现方式中，SRS带宽的子带的RB配置数量为M；SRS资源包括子SRS区域在子带的起始配置位置；发送单元901，具体用于：在N个子带中第一子带的RB数量为M的情况下，确定第一子带的SRS区域的起始位置为起始配置位置，第一子带为N个子带的任一子带；在第一子带的SRS区域上，向网络设备发送第一SRS。
在一个可选的实现方式中，SRS带宽的子带的RB配置数量为M；发送单元901，具 体用于：在N个子带中第二子带的RB数量小于M的情况下，确定不在第二子带上发送第一SRS；或，确定第二子带的SRS区域的起始位置为第二子带中第一个可用于发送SRS的RB位置，第二子带为N个子带的任一子带，并在第二子带的SRS区域上，向网络设备发送第一SRS。
图10为本申请实施例提供的一种网络设备，如图10所示，该网络设备可包括：
接收单元1001，用于接收终端设备发送的第一SRS，第一SRS通过终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，N大于1；在N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或等于SRS区域所属子带的RB数量；
发送单元1002，用于向终端设备发送第一DCI，第一DCI包括子带指示信息，子带指示信息用于指示终端设备发送第二SRS的目标子带；
接收单元1001，还用于接收终端设备在目标子带上发送的第二SRS。
在一个可选的实现方式中，发送单元1002，还用于向终端设备发送SRS配置信息和第二DCI，第二DCI用于触发SRS配置信息中的一组SRS资源并指示终端设备使用SRS资源发送第一SRS。
在一个可选的实现方式中，第一DCI还用于指示终端设备使用第二DCI触发的SRS资源向网络设备发送所第二SRS。
在一个可选的实现方式中，子带指示信息包括一个子带位置信息；SRS资源包括SRS区域在子带的起始配置位置；目标子带的位置编码为子带位置信息包括的位置编码与起始配置位置之和，与N进行取模运算的结果；目标子带的位置编码用于在N个子带中指示目标子带。
在一个可选的实现方式中，子带指示信息包括一个子带位置信息；SRS资源包括SRS区域在子带的起始配置位置和循环移位的候选位置；SRS带宽中子带的RB配置数量为M；目标子带的位置编码为将子带位置信息包括的位置编码、起始配置位置和第一取模结果之和，与N进行取模运算得到的结果；第一取模结果通过候选位置，与N与M之差进行取模运算得到。
在一个可选的实现方式中，子带指示信息包括至少两个子带位置信息；发送单元1002还用于向终端设备发送位置指示信息；位置指示信息用于从至少两个子带位置信息中确定目标子带位置信息；目标子带位置信息包括的位置编码为目标子带的位置编码；目标子带的位置编码用于在N个子带中指示目标子带。
在一种可选的实现方式中，网络设备还包括：确定单元1003，用于根据第一SRS的接收功率，在N个子带中确定目标子带。
图11为本申请实施例提供的一种终端设备，如图11所示，该终端设备可包括：
发送单元1101，在SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS，N大于或等于1；SRS带宽的子带的RB配置数量为M；N个子带为第一子带和/或第二子带，第一子带的RB数量为M，第二子带的RB数量小于M；N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或等于SRS区域所属子带的RB数量。
在一种可选的实现方式中，发送单元1101，具体用于：在N个子带包括第一子带的情况下，终端设备确定第一子带的SRS区域的起始位置为起始配置位置；终端设备在N个子 带中第一子带的SRS区域上，向网络设备发送第一SRS。
在一种可选的实现方式中，发送单元1101，具体用于：在N个子带包括第二子带的情况下，终端设备确定不在第二子带上发送第一SRS；或，终端设备确定第二子带的SRS区域的起始位置为第二子带中第一个可用于发送SRS的RB位置，并在N个子带中第二子带的SRS区域上，向网络设备发送第一SRS。
图12为本申请实施例提供的一种网络设备，如图12所示，该网络设备可包括：
接收单元1201，用于接收第一SRS，第一SRS通过终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，N大于或等于1；N个子带为第一子带和/或第二子带，第一子带的RB数量为M，第二子带的RB数量小于M；N个子带中每个子带包括一个SRS区域，SRS区域的资源块RB数量小于或等于SRS区域所属子带的RB数量。
应理解以上终端设备和网络设备的各个模块的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。例如，以上各个模块可以为单独设立的处理元件，也可以集成同一个芯片中实现，此外，也可以以程序代码的形式存储于控制器的存储元件中，由处理器的某一个处理元件调用并执行以上各个模块的功能。此外各个模块可以集成在一起，也可以独立实现。这里的处理元件可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个模块可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。该处理元件可以是通用处理器，例如中央处理器(英文：central processing unit，简称：CPU)，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(英文：application-specific integrated circuit，简称：ASIC)，或，一个或多个微处理器(英文：digital signal processor，简称：DSP)，或，一个或者多个现场可编程门阵列(英文：field-programmable gate array，简称：FPGA)等。
接下来介绍本申请实施例提供的另一种网络设备，请参阅图13所示，网络设备1300包括：
接收器1301、发送器1302、处理器1303和存储器1304(其中网络设备1300中的处理器1303的数量可以一个或多个，图13中以一个处理器为例)。在本申请的一些实施例中，接收器1301、发送器1302、处理器1303和存储器1304可通过总线或其它方式连接，其中，图10中以通过总线连接为例。
存储器1304可以包括只读存储器和随机存取存储器，并向处理器1303提供指令和数据。存储器1304的一部分还可以包括非易失性随机存取存储器(non-volatile random access memory，NVRAM)。存储器1304存储有操作系统和操作指令、可执行模块或者数据结构，或者它们的子集，或者它们的扩展集，其中，操作指令可包括各种操作指令，用于实现各种操作。操作系统可包括各种系统程序，用于实现各种基础业务以及处理基于硬件的任务。
处理器1303控制网络设备的操作，处理器1303还可以称为中央处理单元(central processing unit，CPU)。具体的应用中，网络设备的各个组件通过总线系统耦合在一起，其中总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都称为总线系统。
上述本申请实施例揭示的方法可以应用于处理器1303中，或者由处理器1303实现。 处理器1303可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1303中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1303可以是通用处理器、数字信号处理器(digital signal processing，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现场可编程门阵列(field－programmable gate array，FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1304，处理器1303读取存储器1304中的信息，结合其硬件完成上述方法的步骤。
接收器1301可用于接收输入的数字或字符信息，以及产生与网络设备的相关设置以及功能控制有关的信号输入，发送器1302可包括显示屏等显示设备，发送器1302可用于通过外接接口输出数字或字符信息。
本申请实施例中，处理器1303，用于执行前述网络设备侧执行的探测参考信号传输方法。
接下来介绍本申请实施例提供的另一种终端设备，请参阅图14所示，终端设备1400包括：
接收器1401、发送器1402、处理器1403和存储器1404(其中终端设备1400中的处理器1403的数量可以一个或多个，图14中以一个处理器为例)。在本申请的一些实施例中，接收器1401、发送器1402、处理器1403和存储器1404可通过总线或其它方式连接，其中，图14中以通过总线连接为例。
存储器1404可以包括只读存储器和随机存取存储器，并向处理器1403提供指令和数据。存储器1404的一部分还可以包括NVRAM。存储器1404存储有操作系统和操作指令、可执行模块或者数据结构，或者它们的子集，或者它们的扩展集，其中，操作指令可包括各种操作指令，用于实现各种操作。操作系统可包括各种系统程序，用于实现各种基础业务以及处理基于硬件的任务。
处理器1403控制终端设备的操作，处理器1403还可以称为CPU。具体的应用中，终端设备的各个组件通过总线系统耦合在一起，其中总线系统除包括数据总线之外，还可以包括电源总线、控制总线和状态信号总线等。但是为了清楚说明起见，在图中将各种总线都称为总线系统。
上述本申请实施例揭示的方法可以应用于处理器1403中，或者由处理器1403实现。处理器1403可以是一种集成电路芯片，具有信号的处理能力。在实现过程中，上述方法的各步骤可以通过处理器1403中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器1403可以是通用处理器、DSP、ASIC、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。可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成，或者用 译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器1404，处理器1403读取存储器1404中的信息，结合其硬件完成上述方法的步骤。
本申请实施例中，处理器1403，用于执行前述终端设备侧执行的探测信号检测方法。
在本申请的实施例中提供一种计算机可读存储介质，上述计算机存储介质存储有一条或多条指令，上述一条或多条指令被处理器执行时实现本申请实施例的探测信号检测方法。
以上仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到各种等效的修改或替换，这些修改或替换都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以权利要求的保护范围为准。

Claims (26)

  1. 一种探测参考信号传输方法，其特征在于，包括：
    终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或者等于所述SRS区域所属子带的RB数量；
    所述终端设备接收第一下行控制信息DCI；
    所述终端设备从所述第一DCI中获取子带指示信息，所述子带指示信息用于指示所述N个子带中的目标子带；
    所述终端设备在所述目标子带上，向网络设备发送第二SRS。
  2. 根据权利要求1所述的方法，其特征在于，在所述终端设备在探测参考信号SRS带宽的N个子带的SRS区域上，向所述网络设备发送第一探测参考信号SRS之前，所述方法还包括：
    所述终端设备接收SRS配置信息和第二DCI，所述第二DCI用于触发所述SRS配置信息中的一组SRS资源并指示所述终端设备使用所述SRS资源发送所述第一SRS。
  3. 根据权利要求2所述的方法，其特征在于，所述终端设备在所述目标子带上，向网络设备发送第二SRS，包括：
    所述终端设备使用所述第二DCI触发的所述SRS资源，在所述目标子带上向所述网络设备发送第二SRS。
  4. 根据权利要求3所述的方法，其特征在于，所述方法在所述终端设备从所述第一DCI中获取子带指示信息之后，在所述终端设备在所述目标子带上，向网络设备发送第二SRS之前，还包括：
    所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽上的位置编码，所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
  5. 根据权利要求4所述的方法，其特征在于，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置；
    所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽上的位置编码，包括：
    所述终端设备将所述子带位置信息包括的位置编码与所述起始配置位置之和，与所述N进行取模运算，得到所述目标子带的位置。
  6. 根据权利要求4所述的方法，其特征在于，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置和循环移位的候选位置；所述SRS带宽中子带的RB配置数量为M；
    所述终端设备根据所述子带指示信息和所述SRS资源，确定所述目标子带在所述SRS带宽上的位置编码，包括：
    所述终端设备将所述候选位置，与所述N与所述M之差进行取模运算，得到第一取模结果；
    所述终端设备将所述子带位置信息包括的位置编码、所述起始配置位置和所述第一取模结果之和，与所述N进行取模运算，得到所述目标子带的位置编码。
  7. 根据权利要求1所述的方法，其特征在于，所述子带指示信息包括至少两个子带位置信息；
    在所述终端设备接收第一DCI之前，所述方法还包括：
    所述终端设备接收位置指示信息，所述位置指示信息用于指示所述至少两个子带位置信息中的目标子带位置信息；
    所述目标子带位置信息包括的位置编码为所述目标子带在所述SRS带宽上的位置编码，所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
  8. 根据权利要求2所述的方法，其特征在于，所述SRS带宽的子带的RB配置数量为M；所述SRS资源包括所述SRS区域在子带的起始配置位置；
    所述终端设备在SRS带宽的N个子带的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：
    在所述N个子带中第一子带的RB数量为所述M的情况下，所述终端设备确定所述第一子带的SRS区域的起始位置为所述起始配置位置，所述第一子带为所述N个子带的任一子带；
    所述终端设备在所述第一子带的SRS区域上，向所述网络设备发送所述第一SRS。
  9. 根据权利要求1-8中任一项所述的方法，其特征在于，所述SRS带宽的子带的RB配置数量为M；
    所述终端设备在SRS带宽的N个子带包括的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：
    在所述N个子带中第二子带的RB数量小于所述M的情况下，所述终端设备确定不在所述第二子带上发送所述第一SRS；
    或，所述终端设备确定所述第二子带的SRS区域的起始位置为所述第二子带中第一个可用于发送SRS的RB位置，所述第二子带为所述N个子带的任一子带，并在所述第二子带的SRS区域上，向所述网络设备发送所述第一SRS。
  10. 一种探测参考信号传输方法，其特征在于，包括：
    终端设备在SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS，所述N大于1；
    所述SRR带宽的子带的RB配置数量为M；
    所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；
    所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或者等于所述SRS区域所属子带的RB数量。
  11. 根据权利要求10所述的方法，其特征在于，所述SRS区域在子带的起始配置位置通过所述网络设备指示；所述终端设备在SRS带宽的N个子带的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：
    在所述N个子带包括第一子带的情况下，所述终端设备确定所述第一子带的SRS区域的起始位置为所述起始配置位置；
    所述终端设备在所述N个子带中所述第一子带的SRS区域上，向所述网络设备发送所 述第一SRS。
  12. 根据权利要求10所述的方法，其特征在于，所述终端设备在SRS带宽的N个子带包括的SRS区域上，向所述网络设备发送第一探测参考信号SRS，包括：
    在所述N个子带包括第二子带的情况下，所述终端设备确定不在所述第二子带上发送所述第一SRS；
    或，所述终端设备确定所述第二子带的SRS区域的起始位置为所述第二子带中第一个可用于发送SRS的RB位置，并在所述N个子带中所述第二子带的SRS区域上，向所述网络设备发送所述第一SRS。
  13. 一种探测参考信号传输方法，其特征在于，包括：
    网络设备接收终端设备发送的第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；
    所述网络设备向所述终端设备发送第一DCI，所述第一DCI包括子带指示信息，所述子带指示信息用于指示所述终端设备发送第二SRS的目标子带；
    所述网络设备接收所述终端设备在所述目标子带上发送的所述第二SRS。
  14. 根据权利要求13所述的方法，其特征在于，在所述网络设备接收终端设备发送的第一SRS之前，所述方法还包括：
    所述网络设备向所述终端设备发送SRS配置信息和第二DCI，所述第二DCI用于触发所述SRS配置信息中的一组SRS资源并指示所述终端设备使用所述SRS资源发送所述第一SRS。
  15. 根据权利要求14所述的方法，其特征在于，所述第一DCI还用于指示所述终端设备使用所述第二DCI触发的所述SRS资源向所述网络设备发送所第二SRS。
  16. 根据权利要求14所述的方法，其特征在于，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置；
    所述目标子带的位置编码为所述子带位置信息包括的位置编码与所述起始配置位置之和，与所述N进行取模运算的结果；
    所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
  17. 根据权利要求14所述的方法，其特征在于，所述子带指示信息包括一个子带位置信息；所述SRS资源包括所述SRS区域在子带的起始配置位置和循环移位的候选位置；所述SRS带宽中子带的RB配置数量为M；
    所述目标子带的位置编码为将所述子带位置信息包括的位置编码、所述起始配置位置和所述第一取模结果之和，与所述N进行取模运算得到的结果；所述第一取模结果通过所述候选位置，与所述N与所述M之差进行取模运算得到。
  18. 根据权利要求13所述的方法，其特征在于，所述子带指示信息包括至少两个子带位置信息；
    在所述网络设备向所述终端设备发送第一DCI之前，所述方法还包括；
    所述网络设备向所述终端设备发送位置指示信息；所述位置指示信息用于从所述至少 两个子带位置信息中确定所述目标子带位置信息；
    所述目标子带位置信息包括的位置编码为所述目标子带的位置编码；所述目标子带的位置编码用于在所述N个子带中指示所述目标子带。
  19. 一种探测参考信号传输方法，其特征在于，包括：
    网络设备接收第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；
    所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；
    所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
  20. 一种终端设备，其特征在于，包括：
    发送单元，用于在探测参考信号SRS带宽的N个子带的SRS区域上，向网络设备发送第一探测参考信号SRS；所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；
    接收单元，用于接收第一下行控制信息DCI；
    获取单元，用于从所述第一DCI中获取子带指示信息，所述子带指示信息用于指示所述N个子带中的目标子带；
    所述发送单元，还用于在所述目标子带上，向网络设备发送第二SRS。
  21. 一种终端设备，其特征在于，包括：
    发送单元，在SRS带宽的N个子带的SRS区域上，向网络设备发送第一SRS，所述N大于或等于1；
    所述SRS带宽的子带的RB配置数量为M；
    所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第二子带的RB数量小于所述M；
    所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
  22. 一种网络设备，其特征在于，包括：
    接收单元，用于接收终端设备发送的第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于1；在所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量；
    发送单元，用于向所述终端设备发送第一DCI，所述第一DCI包括子带指示信息，所述子带指示信息用于指示所述终端设备发送第二SRS的目标子带；
    所述接收单元，还用于接收所述终端设备发送的所述第二SRS。
  23. 一种网络设备，其特征在于，包括：
    接收单元，用于接收第一SRS，所述第一SRS通过所述终端设备在SRS带宽的N个子带包括的SRS区域上进行发送，所述N大于或等于1；
    所述N个子带为第一子带和/或第二子带，所述第一子带的RB数量为所述M，所述第 二子带的RB数量小于所述M；
    所述N个子带中每个子带包括一个所述SRS区域，所述SRS区域的资源块RB数量小于或等于所述SRS区域所属子带的RB数量。
  24. 一种终端设备，包括接收器和发送器，其特征在于，还包括：
    处理器，适于实现一条或多条指令；以及，
    计算机存储介质，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由所述处理器加载并执行如权利要求1至12任一项所述的探测参考信号传输方法。
  25. 一种网络设备，包括接收器和发送器，其特征在于，还包括：
    处理器，适于实现一条或多条指令；以及，
    计算机存储介质，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由所述处理器加载并执行如权利要求13至19任一项所述探测参考信号传输方法。
  26. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有一条或多条指令，所述一条或多条指令适于由处理器加载并执行如权利要求1至19任一项所述的探测参考信号传输方法。
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