Sounding reference signal configuration method and device, terminal and network equipment

Abstract

The embodiment of the present application discloses a method and apparatus for configuring a sounding reference signal, a terminal, and a network device, the method comprising: the terminal obtains first information from the network device, the first information being used to indicate the resource configuration of the sounding reference signal; the terminal determines the resource location distribution for transmitting the sounding reference signal based on the first information. It can be seen that in the embodiment of the present application, since the first information is sent by the network device to the terminal, it is conducive to enabling the network device to configure the resource location distribution for transmitting SRS. In addition, the terminal determines the resource location distribution for transmitting SRS based on the first information, and then transmits SRS through the resource location distribution. Since the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, the transmission of all or part of the SRS is achieved, and the utilization efficiency of the frequency band resources, the power density, and the multiplexing capability of the SRS are improved.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and apparatus for configuring a sounding reference signal, a terminal, and a network device. Background Art

[0002] The 3rd Generation Partnership Project (3GPP) is dedicated to the development of communication protocol standards, wherein existing communication protocol standards have relevant records for sounding reference signals (SRS) in the communication process.

[0003] At present, the frequency-hopping spread spectrum (FHSS) technology supported by the new radio (NR) system requires the transmission of SRS on the entire frequency band resources. At the same time, in actual communication networks, since part of the frequency band resources in the entire frequency band resources will suffer severe interference from other wireless systems (such as video backhaul systems), this part of the frequency band resources cannot be used for data scheduling, and thus there is no need to transmit SRS on the frequency domain of this part of the frequency band. Alternatively, in the case of highly correlated frequency domains, since the channel has a high correlation in the entire frequency band resources, it is only necessary to transmit SRS on part of the frequency band resources of the entire frequency band resources. It can be seen that, on the basis of existing communication protocol standards, further research is needed on the frequency band resources used to transmit SRS in order to improve the utilization efficiency of frequency band resources and enhance the multiplexing capability of SRS. Summary of the Invention

[0004] The embodiments of the present application provide a sounding reference signal configuration method and apparatus, a terminal, and a network device, in order to configure the resource location distribution for transmitting a sounding reference signal, thereby improving the utilization efficiency of frequency band resources and enhancing the multiplexing capability of SRS.

[0005] In a first aspect, an embodiment of the present application provides a method for configuring a sounding reference signal, including:

[0006] The terminal obtains first information from a network device, where the first information is used to indicate resource configuration of a sounding reference signal (SRS);

[0007] The terminal determines, according to the first information, a resource location distribution for transmitting the SRS.

[0008] In a second aspect, an embodiment of the present application provides a method for configuring a sounding reference signal, including:

[0009] The network device sends first information to the terminal, where the first information is used to indicate resource configuration of a sounding reference signal SRS.

[0010] In a third aspect, an embodiment of the present application provides a sounding reference signal configuration device, applied to a terminal, the device including a processing unit and a communication unit, the processing unit being configured to:

[0011] Acquiring, by the communication unit, first information from a network device, where the first information is used to indicate resource configuration of a sounding reference signal (SRS);

[0012] Determine the resource location distribution for transmitting the SRS according to the first information.

[0013] In a fourth aspect, an embodiment of the present application provides a sounding reference signal configuration device, applied to a network device, the device including a processing unit and a communication unit, the processing unit being configured to:

[0014] First information is sent to the terminal through the communication unit, where the first information is used to indicate resource configuration of a sounding reference signal (SRS).

[0015] In a fifth aspect, an embodiment of the present application provides a terminal comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program comprises instructions for executing the steps of any method of the first aspect of the embodiment of the present application.

[0016] In a sixth aspect, an embodiment of the present application provides a network device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the program comprises instructions for executing the steps of any method of the second aspect of the embodiment of the present application.

[0017] In the seventh aspect, an embodiment of the present application provides a chip, including a processor, for calling and running a computer program from a memory, so that a device equipped with the chip performs part or all of the steps described in any method of the first aspect or the second aspect of the embodiment of the present application.

[0018] In an eighth aspect, embodiments of the present application provide a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program is operable to cause a computer to execute some or all of the steps described in any of the methods of the first or second aspects of the embodiments of the present application. The computer program may be a software installation package.

[0019] It can be seen that in an embodiment of the present application, the network device sends the first information to the terminal; then, the terminal obtains the first information and determines the resource location distribution for transmitting the sounding reference signal based on the first information. Since the first information is sent by the network device to the terminal, it is conducive to the network device configuring the resource location distribution for transmitting the SRS. In addition, the terminal determines the resource location distribution for transmitting the SRS based on the first information, and then transmits the SRS through the resource location distribution. Since the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, the transmission of all or part of the SRS is achieved, thereby improving the utilization efficiency of the frequency band resources. At the same time, the transmission of part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources not used to transmit the SRS can be configured to other terminals to improve the multiplexing capability of the SRS. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The following is a brief introduction to the drawings required for describing the embodiments or prior art.

[0021] Figure 1 This is a schematic diagram of the architecture of a wireless communication system provided by an embodiment of the present application;

[0022] Figure 2 This is a flow chart of a method for configuring a sounding reference signal provided in an embodiment of the present application;

[0023] Figure 3 This is a structural diagram of a subband size of 4 PRBs provided in an embodiment of the present application;

[0024] Figure 4 This is a schematic structural diagram of the time domain position distribution of a sounding reference signal frequency hopping according to an embodiment of the present application;

[0025] Figure 5 This is a structural diagram of determining the time domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource according to first bitmap information provided by an embodiment of the present application;

[0026] Figure 6 This is a schematic structural diagram of the time domain position distribution of a compressed sounding reference signal frequency hopping according to an embodiment of the present application;

[0027] Figure 7 This is a structural diagram of the frequency domain position distribution of a sounding reference signal frequency hopping or transmission provided by an embodiment of the present application;

[0028] Figure 8 This is a structural diagram of determining the frequency domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource according to second bitmap information provided by an embodiment of the present application;

[0029] Figure 9 This is a structural diagram of the frequency domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource provided by an embodiment of the present application;

[0030] Figure 10 This is a structural diagram of the frequency domain position distribution within a sub-band provided by an embodiment of the present application;

[0031] Figure 11 This is a structural diagram of determining the frequency domain position distribution for transmitting a sounding reference signal within a subband according to second bitmap information provided by an embodiment of the present application.

[0032] Figure 12 This is a structural diagram of a method for processing resource location distribution information within a subband in a reused manner, provided by an embodiment of the present application;

[0033] Figure 13 This is a structural diagram of processing in the same transmission mode based on resource location distribution information within a subband provided by an embodiment of the present application;

[0034] Figure 14 This is a block diagram of the functional units of a sounding reference signal configuration device provided in an embodiment of the present application;

[0035] Figure 15 This is a block diagram of the functional units of another device for configuring a sounding reference signal provided in an embodiment of the present application;

[0036] Figure 16 This is a schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0037] Figure 17 This is a structural diagram of a network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings.

[0039] The technical solutions of the embodiments of the present application can be applied to various wireless communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE-based Access to Unlicensed Spectrum (LTE-U) system on unlicensed spectrum, NR-based Access to Unlicensed Spectrum (NR-U) system on unlicensed spectrum, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Network (WLAN) system. Networks, WLAN), Wireless Fidelity (WiFi), fifth-generation communication (5th-Generation, 5G) systems or other communication systems, etc.

[0040] Generally speaking, traditional wireless communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, wireless communication systems will not only support traditional wireless communication systems, but also support device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. Therefore, the technical solutions of the embodiments of the present application can also be applied to the above-mentioned wireless communication systems.

[0041] Optionally, the wireless communication system in the embodiment of the present application can be applied to beamforming (beamforming), carrier aggregation (CA), dual connectivity (DC) or standalone (SA) deployment scenarios.

[0042] Optionally, the wireless communication system in the embodiment of the present application may be applied to an unlicensed spectrum. The unlicensed spectrum may also be considered a shared spectrum. Alternatively, the wireless communication system in the embodiment of the present application may be applied to an authorized spectrum. The authorized spectrum may also be considered an unshared spectrum.

[0043] Since the embodiments of the present application describe various embodiments in conjunction with terminals and network devices, the terminals and network devices involved will be described in detail below.

[0044] Specifically, the terminal may be user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, an intelligent terminal, a wireless communication device, a user agent, or a user device. The terminal may 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), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a relay device, a vehicle-mounted device, a wearable device, a terminal in a next-generation communication system such as an NR network or a terminal in a future-evolved public land mobile network (PLMN), etc., without specific limitation.

[0045] Furthermore, the terminal can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0046] Furthermore, the terminal may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0047] Specifically, the network device may be a device for communicating with a terminal, and the network device may be a base station (base transceiver station, BTS) in a GSM or CDMA communication system, a base station (nodeB, NB) in a WCDMA communication system, an evolved base station (eNB or eNodeB) in an LTE communication system, or a base station (gNB) in an NR communication system. The network device may also be an access point (AP) in a wireless local area network WLAN, a relay station, a network device in a future evolved PLMN network, or a network device in an NTN network.

[0048] It should be noted that in some network deployments, the gNB may include a centralized unit (CU) and a distributed unit (DU). The gNB may also include an active antenna unit (AAU). The CU implements some gNB functions, while the DU implements some gNB functions. For example, the CU is responsible for processing non-real-time protocols and services, implementing the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. In addition, the AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling (such as RRC layer signaling) can be considered to be sent by the DU, or by the DU + AAU. It is understood that the network device may include one or more of a CU node, a DU node, and an AAU node. In addition, the CU may be classified as a network device in the access network (RAN) or a network device in the core network (CN), without specific limitation.

[0049] Furthermore, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Alternatively, the network device may be a base station located on land or in water.

[0050] Furthermore, network equipment can provide services for a cell, and terminals within the cell can communicate with the network equipment using transmission resources (such as spectrum resources). The cell can include small cells, metro cells, micro cells, pico cells, and femto cells.

[0051] For example, the wireless communication system used in the embodiment of the present application is as follows: Figure 1 The wireless communication system 10 may include a network device 110 and a terminal 120, and the network device 110 may be a device that communicates with the terminal 120. At the same time, the network device 110 may provide communication coverage for a specific geographical area and may communicate with the terminal 120 located in the coverage area.

[0052] Optionally, the wireless communication system 10 may further include multiple network devices, and each network device may include other numbers of terminals within its coverage area, which is not specifically limited here.

[0053] Optionally, the wireless communication system 10 may further include other network entities such as a network controller and a mobility management entity, which are not specifically limited here.

[0054] Optionally, the communication between the network devices and the terminals, and between the terminals in the wireless communication system 10 may be wireless communication or wired communication, which is not specifically limited here.

[0055] Before introducing the sounding reference signal configuration method provided by this embodiment in detail, the relevant communication technologies involved in this embodiment are introduced.

[0056] 1. Sounding reference signal (SRS)

[0057] SRS is an important reference signal in 5G / NR systems and is widely used in various functions of NR systems, such as:

[0058] (1) Terminal detection process for acquiring downlink channel state information (CSI);

[0059] (2) Used for uplink beam management;

[0060] (3) Used for positioning function;

[0061] (4) Coordination with codebook-based uplink transmission, such as frequency-domain scheduling and rank / precoding matrix indicator (PMI) / modulation coding scheme (MCS) determination;

[0062] (5) Cooperate with non-codebook based uplink transmission, such as frequency domain scheduling and SRS resource indicator (SRI) / MCS determination.

[0063] NR SRS introduces the concept of SRS resource and SRS resource set. The network device can configure one or more SRS resource sets for a terminal, and each SRS resource set can be configured with one or more SRS resources.

[0064] In addition, SRS supports three different transmission modes: periodic, semi-persistent, and aperiodic.

[0065] (1) Periodic SRS and semi-continuous SRS

[0066] Periodic SRS refers to SRS that is transmitted periodically, and its period and slot offset are configured by RRC signaling. If the terminal receives relevant configuration information configured by the RRC signaling, the terminal sends SRS at a certain period according to the relevant information until the relevant configuration information becomes invalid. In addition, the spatial relation information of the periodic SRS is also configured by RRC signaling. The spatial relation information is used to indicate the transmitted beam in an implicit manner, and the spatial relation information can indicate a channel state information reference signal (CSI-RS), a synchronization signal block (SSB) or a reference SRS. Therefore, the terminal can determine the transmit beam of the SRS resource based on the receive beam of the CSI-RS / SSB indicated by the spatial relation information, or determine the transmit beam of the SRS resource based on the transmit beam of the reference SRS resource.

[0067] Semi-persistent SRS is also a periodically transmitted SRS. Its period and slot offset are configured through RRC signaling, but its activation and deactivation signaling are carried by the media access control element (MAC CE) of the media access control layer. Upon receiving the activation signaling, the terminal begins periodic SRS transmission until it receives the deactivation signaling. Furthermore, the spatially relevant information for the semi-persistent SRS is carried along with the MAC CE that activates the SRS.

[0068] After receiving the period and time slot offset configured by RRC signaling, the terminal determines the time slot that can be used to transmit SRS according to the following formula:

[0069]

[0070] in,

[0071] Indicates the number of time slots contained in each wireless frame, n f Indicates the wireless frame number,

[0072] Indicates the time slot number, T offset Indicates the time slot offset configured by RRC signaling, T SRS Indicates the period configured by RRC signaling.

[0073] (2) Aperiodic SRS

[0074] Aperiodic SRS refers to SRS that is transmitted aperiodically. Among them, aperiodic SRS is a newly introduced concept in the NR system. At the same time, the network device can trigger the terminal to transmit SRS aperiodically through downlink control information (DCI). In addition, the trigger signaling used to trigger the transmission of aperiodic SRS can be carried by the DCI used to schedule the physical uplink shared channel (PUSCH) or the physical downlink shared channel (PDSCH) in the UE-specific search space, or by the DCI format 2_3 (DCI format 2_3) in the public search space. Among them, DCI format 2_3 can not only be used to trigger aperiodic SRS transmission, but also can be used to configure TPC commands for SRS on a group of UEs or a group of carriers. At the same time, DCI carries a 2-bit SRS-request to trigger the aperiodic transmission of SRS.

[0075] When the terminal receives aperiodic SRS trigger signaling (such as DCI), it performs aperiodic SRS transmission on the SRS resource set indicated by the trigger signaling. The time slot offset between the trigger signaling and the aperiodic SRS transmission is configured by high-layer signaling (such as RRC signaling). At the same time, the network device pre-indicates the configuration parameters of each SRS resource set to the terminal through high-layer signaling, including time-frequency resources, sequence parameters, power control parameters, etc. In addition, for each SRS resource in the triggered SRS resource set, the terminal can also determine the transmit beam used to transmit the SRS on the SRS resource through the spatial related information of the SRS resource, and the spatial related information is configured for each SRS resource through RRC information.

[0076] It should be noted that the symbol C shown in Table 1 of the SRS frequency domain configuration SRS and symbol B SRS Decision, m SRS,b Indicates the number of physical resource blocks (PRBs) for SRS transmission. Where b = B SRS , C SRS ∈{0,1,...,63} is given by the field c-SRS contained in the high-level parameter freqHopping, B SRS ∈{0,1,2,3} is given by the domain b-SRS contained in the high-level parameter freqHopping.

[0077] The NR system supports SRS frequency hopping. If b is met hop SRS In the case of (where b hop is a parameter configured by RRC signaling), the terminal sends the SRS signal in the form of frequency hopping. SRS,0 Indicates the total bandwidth of SRS frequency hopping, m SRS,b Indicates the number of PRBs transmitted in each frequency hopping. In addition, the terminal determines the frequency domain position of each frequency hopping by the following formula:

[0078]

[0079] Among them, N b Determined by the preset table, n RRC Parameters configured for RRC signaling, operators

[0080] Indicates rounding down, F b (n SRS ) is determined by the following formula:

[0081]

[0082] Among them, regardless of N​b What is the value of ?

[0083] n SRS Indicates the number of SRS frequency hopping. For non-periodic SRS, the number of SRS frequency hopping is determined by the following formula:

[0084]

[0085] in,

[0086]

[0087] Indicates the number of consecutive OFDM symbols (configured by RRC signaling), R is the repetition factor (configured by RRC signaling), and R is used to indicate the number of repeated OFDM symbols without frequency hopping. For example, when R = 1, frequency hopping is performed in units of 1 OFDM symbol; when R = 2, frequency hopping is performed in units of 2 OFDM symbols.

[0088] Table 1

[0089]

[0090] For periodic SRS or semi-periodic SRS, the number of SRS frequency hopping is determined by the following formula:

[0091]

[0092] in,

[0093] Indicates the number of time slots contained in each wireless frame, n f Indicates the wireless frame number,

[0094] Indicates the time slot number, T offset Indicates the time slot offset configured by RRC signaling, T SRS Indicates the period configured by RRC signaling.

[0095] Determined by Table 2.

[0096] In Table 1, Δf represents the subcarrier spacing,

[0097] Indicates the number of OFDM symbols contained in each time slot.

[0098] Indicates the number of time slots contained in each subframe, T slot Indicates the time slot length.

[0099] At present, the frequency-hopping spread spectrum (FHSS) technology supported by the new radio (NR) system requires the transmission of SRS on the entire frequency band resources. At the same time, in actual communication networks, since part of the frequency band resources in the entire frequency band resources will suffer severe interference from other wireless systems (such as video backhaul systems), this part of the frequency band resources cannot be used for data scheduling, and thus there is no need to transmit SRS on the frequency domain of this part of the frequency band. Alternatively, in the case of highly correlated frequency domains, since the channel has a high correlation in the entire frequency band resources, it is only necessary to transmit SRS on part of the frequency band resources of the entire frequency band resources. It can be seen that, on the basis of existing communication protocol standards, further research is needed on the frequency band resources used to transmit SRS in order to improve the utilization efficiency of frequency band resources and enhance the multiplexing capability of SRS.

[0100] Table 2

[0101]

[0102] In combination with the above description, the present application embodiment provides a flow chart of a method for configuring a sounding reference signal. Figure 2 The method comprises:

[0103] S210: The network device sends first information to the terminal.

[0104] The first information may be used to indicate resource configuration of a sounding reference signal.

[0105] Specifically, the network device may send first information regarding the sounding reference signal resource to the terminal.

[0106] It should be noted that the existing communication protocol standards have made relevant provisions for the sounding reference signal resources configured by the network device to the terminal. At this time, the terminal needs to transmit several SRSs on the configured sounding reference signal resources. However, in an embodiment of the present application, the first information for the sounding reference signal resources is sent to the terminal by the network device; then, the terminal determines the resource location distribution for transmitting the SRS within the sounding reference signal resources based on the first information, and then transmits the SRS through the resource location distribution. Compared with the transmission of several SRSs specified in the existing communication protocol standards, the embodiment of the present application only needs to transmit the SRS on all or part of the frequency band resources of the sounding reference signal resources through the resource location distribution, that is, transmit all or part of the SRS. At the same time, transmitting part of the SRS has two main benefits: the first is to improve the power density, that is, the transmission of part of the SRS can obtain additional power gain; the second is to improve the multiplexing capability of the SRS, that is, the frequency band resources not used to transmit the SRS can be configured to other terminals.

[0107] The following embodiments of the present application will provide a detailed introduction to the sounding reference signal resources.

[0108] Specifically, the sounding reference signal resource (SRS resource) in the embodiment of the present application is a sounding reference signal resource in a sounding reference signal resource set (SRS resource set). At the same time, the sounding reference signal resource set is configured by a network device through RRC signaling. It should be noted that the network device can configure at least one sounding reference signal resource set to the terminal through RRC signaling, and each sounding reference signal resource set includes at least one sounding reference signal resource.

[0109] Furthermore, the sounding reference signal resource set is configured via the higher-layer parameter SRS-ResourceSet, and the sounding reference signal resource is configured via the higher-layer parameter SRS-Resource. It should be noted that the information element (IE) in RRC signaling includes the SRS-Config information element, which is used to configure the transmission of the sounding reference signal. The SRS-Config information element also includes the higher-layer parameters SRS-ResourceSet and SRS-Resource.

[0110] Furthermore, the high-level parameter SRS-ResourceSet includes a usage parameter, and usage can be configured as one of the set {beamManagement, codebook, nonCodebook, antennaSwitching}.

[0111] Furthermore, the high-level parameter SRS-Resource includes a frequency hopping (freqHopping) parameter, and freqHopping contains the following three fields: c-SRS, b-SRS, and b-hop. c-SRS can be configured as a value in the set (0, ..., 63); b-SRS can be configured as a value in the set (0, ..., 3); and b-hop can be configured as a value in the set (0, ..., 3).

[0112] Furthermore, the high-level parameter SRS-Resource may include a second parameter, and the second parameter may include the following three fields: start position (startPosition), number of consecutive OFDM symbols (nrofSymbols), and repetition factor (repetitionFactor). The second parameter may be used to indicate resource mapping information.

[0113] Furthermore, the second parameter may be a resource mapping parameter (resourceMapping).

[0114] Furthermore, nrofSymbols can be configured as a value from a set of consecutive OFDM symbol numbers, which can be determined by the first symbol number set and the second symbol number set. Meanwhile, repetitionFactor can be configured as a value from a set of repetition factors, which can be determined by the first repetition factor set and the second repetition factor set.

[0115] Furthermore, the first symbol number set may be {n1, n2, n4}, and the second symbol number set may be {n6, n8, n12, n14}. Furthermore, the first repetition factor set may be {n1, n2, n4}, and the second repetition factor set may be {n6, n8, n12, n14}.

[0116] Further, the set of consecutive OFDM symbol numbers may include at least one of the following: {n1, n2, n4, n6}, {n1, n2, n4, n8}, {n1, n2, n4, n8}, {n1, n2, n4, n14}, {n1, n2, n4, n6, n8}, {n1, n2, n4, n6, n14}, {n1, n2, n4, n8, n14}, {n1, n2, n4, n8, n14}, {n1, n2, n4, n6, n8, n14}. At the same time, the set of repetition factors may include at least one of the following: {n1,n2,n4,n6}, {n1,n2,n4,n8}, {n1,n2,n4,n8}, {n1,n2,n4,n14}, {n1,n2,n4,n6,n8}, {n1,n2,n4,n6,n14}, {n1,n2,n4,n8,n14}, {n1,n2,n4,n8,n14}, {n1,n2,n4,n6,n8,n14}.

[0117] Specifically, the first information is transmitted by at least one of radio resource control (RRC) signaling, a media access control layer control unit (MAC CE), and downlink control information (DCI). It is understandable that the network device can transmit or indicate the first information to the terminal through at least one of RRC signaling, MAC CE, and DCI.

[0118] S220: The terminal obtains first information from the network device.

[0119] Specifically, the first information includes at least one of the following: subband-level resource location distribution information and intra-subband resource location distribution information. It should be noted that the subband level can be understood as a sounding reference signal resource, and the minimum granularity of the sounding reference signal resource in the frequency domain is a subband.

[0120] It should be noted that the resource location distribution information based on the subband level can be used to determine the location distribution of time-frequency domain resources used to transmit the sounding reference signal on the sounding reference signal resource; the resource location distribution information within the subband can be used to determine the frequency domain location distribution used to transmit the sounding reference signal within the subband of the sounding reference signal resource.

[0121] The following embodiments of the present application will provide a detailed introduction to the subband.

[0122] In one possible example, the subband size of the subband may satisfy at least one of the following conditions: the subband size of the subband is K PRBs, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the bandwidth of the transmitted sounding reference signal, and the subband size of the subband is the minimum unit of sounding reference signal frequency hopping.

[0123] The first parameter may be used to indicate frequency hopping information of the SRS, and K is an integer greater than or equal to 1.

[0124] Specifically, K is a value in the set {4, 8, 12, 16}. Further, the subband size of the subband is a value in the set {4, 8, 12, 16} PRBs. It is understood that the subband size can be configured as a value in the set {4, 8, 12, 16} PRBs, for example, Figure 3 An example is given of a structural diagram in which the subband size is 4 PRBs.

[0125] Specifically, the subband size of the subband is determined by at least one field in the first parameter. Further, the first parameter may be a frequency hopping parameter (freqHopping). Among them, at least one field in the high-level parameter freqHopping includes: c-SRS, b-SRS, b-hop. At the same time, C SRS ∈{0,1,...,63} is given by the domain c-SRS contained in the high-level parameter freqHopping, B SRS ∈{0,1,2,3} is given by the domain b-SRS contained in the high-level parameter freqHopping.

[0126] Specifically, the subband size of the subband is mapped to the sounding reference signal transmission bandwidth. For example, if the SRS transmission bandwidth is 64 PRBs, the subband size is 16 PRBs; if the SRS transmission bandwidth is 32 PRBs, the subband size is 8 PRBs; if the SRS transmission bandwidth is 16 PRBs, the subband size is 4 PRBs, and so on. There is no specific limitation on this.

[0127] Specifically, the subband size of the subband is the minimum unit of the sounding reference signal frequency hopping. It should be noted that the minimum unit of the sounding reference signal frequency hopping can be expressed as m SRS,b ; Among them, m SRS,b It can be determined from Table 1.

[0128] Specifically, if the subband size of a subband satisfies two, three, or four of the above-mentioned methods simultaneously, the subband size of the subband is the smallest value. It is understood that if a network device configures the subband size using two, three, or four of the above-mentioned methods simultaneously, the configuration with the smallest subband size prevails.

[0129] Specifically, the subband size of the subband is configured by RRC signaling. It can be understood that the network device configures the subband size of the subband to the terminal through RRC signaling.

[0130] S230. The terminal determines, according to the first information, a resource location distribution for transmitting a sounding reference signal.

[0131] In one possible example, the terminal determines the resource location distribution for transmitting the detection reference signal based on the first information, which may include the following operations: the terminal determines the location distribution of time domain and / or frequency domain resources for transmitting the detection reference signal within the detection reference signal resource based on the resource location distribution method information based on the subband level.

[0132] Since the first information may include resource location distribution information based on the subband level and / or resource location distribution information based on the subband, and the time domain and / or frequency domain resources used to transmit the sounding reference signal can be divided into different angles of time domain resources or frequency domain resources, the embodiments of the present application will be specifically introduced through the following embodiments. Among them, embodiment 1 mainly analyzes the time domain location distribution method based on the subband level, embodiment 2 mainly analyzes the frequency domain location distribution method based on the subband level, embodiment 3 mainly analyzes the frequency domain location distribution method based on the subband, and embodiment 4 mainly analyzes the time-frequency domain location distribution method based on the subband level and the subband.

[0133] Example 1:

[0134] In one possible example, the terminal determines first information on the position distribution of time domain and / or frequency domain resources for transmitting a sounding reference signal within a sounding reference signal resource based on resource position distribution information based on a subband level, which may include the following operations: the terminal determines the time domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource based on resource position distribution information based on a subband level.

[0135] It should be noted that, while the embodiment 1 mainly analyzes the time domain position distribution method based on the subband level, this embodiment mainly considers the time domain position of SRS frequency hopping when the frequency hopping function is turned on. From the above description, it can be seen that within a time slot of the sounding reference signal resource (SRS resource), the number of SRS frequency hopping times n SRS It can be determined by parameters l′,

[0136] R.

[0137] n f 、

[0138] T offset or T SRS etc., so n SRS Comes in many forms.

[0139] For example, Figure 4 The example is in n SRS The time domain position distribution of SRS frequency hopping under the six forms of . Among them, the black box represents the time domain position that the terminal can use to transmit SRS, and two boxes in the frequency domain represent one subband, while one box in the time domain represents one OFDM symbol.

[0140] R=1、n SRS =1, Figure 4 (a) illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit the SRS at the time domain position of the SRS frequency hopping; when

[0141] R=1、n SRS =2, Figure 4 (b) illustrates the time domain position of 2 SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping; when

[0142] R=2、n SRS =1, Figure 4 (c) illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit the SRS at the time domain position of the SRS frequency hopping; when

[0143] R=4、n SRS =1, Figure 4 (d) illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit the SRS at the time domain position of the SRS frequency hopping; when

[0144] R=2、n SRS =2, Figure 4 (e) illustrates the time domain position of two SRS frequency hoppings, so the terminal can transmit the SRS at the time domain position of the SRS frequency hopping; when

[0145] R=1、n SRS =4, Figure 4 (f) illustrates the time domain positions of four SRS frequency hoppings, so the terminal can transmit the SRS at the time domain positions of the SRS frequency hopping.

[0146] Specifically, the subband-level resource location distribution information may include: first bitmap information or X-bit information, where X is an integer greater than or equal to 2. It is understandable that the terminal may determine the time domain location distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the first bitmap information or the X-bit information.

[0147] In the following, this embodiment will specifically introduce the sub-band level resource location distribution information as the first bitmap information.

[0148] Specifically, the length of the first bitmap information may be determined by the second parameter.

[0149] Furthermore, the second parameter may be a high-level parameter resourceMapping, wherein the fields in resourceMapping include at least one of the following: the number of consecutive orthogonal frequency division multiplexing OFDM symbols nrofSymbols and the repetition factor repetitionFactor.

[0150] Furthermore, the length of the first bitmap information can be

[0151] in,

[0152] It represents the number of consecutive OFDM symbols (configured by RRC signaling), and R is the repetition factor (configured by RRC signaling).

[0153] Specifically, the position distribution of the bits in the first bitmap information corresponds to the position distribution of the time-frequency domain resources used to transmit the sounding reference signal. It should be noted that the time-frequency domain resources used to transmit the sounding reference signal can be understood as the OFDM symbols used to transmit the sounding reference signal in the time domain and the subbands used to transmit the sounding reference signal in the frequency domain.

[0154] Specifically, the first bit in the first bitmap information is used to indicate whether the terminal transmits a sounding reference signal at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

[0155] Further, if the value of the first bit is 1, the terminal transmits a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; if the value of the first bit is 0, the terminal does not transmit a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; or, if the value of the first bit is 1, the terminal does not transmit a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; if the value of the first bit is 0, the terminal transmits a detection reference signal at the time-frequency domain position corresponding to the position of the first bit.

[0156] For an example, see Figure 5 , Figure 5 A schematic diagram of a structure for determining the time domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource based on first bitmap information is provided. In which, black boxes represent time domain positions that a terminal can use to transmit SRS, while diagonal boxes and white boxes represent time domain positions that a terminal cannot use to transmit SRS, and two boxes in the frequency domain represent one subband, and one box in the time domain represents one OFDM symbol. Figure 5 In (a), the first bitmap information is "1", and the time domain position corresponding to the position of the bit "1" in the first bitmap information is "the time domain position of 1 SRS frequency hopping". Figure 5 In (b), the first bitmap information is "01", and the time domain position corresponding to the position of the first bit "1" in the first bitmap information is the "time domain position of the first SRS frequency hopping", and the time domain position corresponding to the position of the second bit "0" is the "time domain position of the second SRS frequency hopping". Figure 5In (f), the first bitmap information is "1001", and the time domain position corresponding to the position of the first bit "1" in the first bitmap information is the "time domain position of the first SRS frequency hopping", the time domain position corresponding to the position of the second bit "0" is the "time domain position of the second SRS frequency hopping", the time domain position corresponding to the position of the third bit "0" is the "time domain position of the third SRS frequency hopping", and the time domain position corresponding to the position of the fourth bit "1" is the "time domain position of the fourth SRS frequency hopping". At the same time, Figure 5 The same can be said for (c), (d) and (e).

[0157] It can be seen that the terminal can determine the time domain position distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the first bit map information. Therefore, it can simply and intuitively determine which time domain positions send SRS and which time domain positions do not send SRS based on the time domain position distribution, thereby improving the flexibility and scalability of the SRS configuration.

[0158] This embodiment will now specifically introduce the resource location distribution information based on the subband level as X bits of information.

[0159] Specifically, when Y time-frequency domain resources for transmitting a sounding reference signal are configured in one time slot of the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, X bits of information are used as reserved bits; and / or, if Y is less than or equal to X, whether the terminal transmits the sounding reference signal on the Y time-frequency domain resources is indicated by bits in the X bits of information; and / or, if Y is greater than X, in addition to whether the terminal transmits the sounding reference signal on X of the Y time-frequency domain resources being indicated by bits in the X bits of information, whether the terminal transmits the sounding reference signal on the remaining sounding reference signals on the Y time-frequency domain resources is indicated by reusing bits in the X bits of information.

[0160] Specifically, if the value of a bit in the X-bit information is 1, the terminal transmits a sounding reference signal at the time domain position corresponding to the bit; if the value of a bit in the X-bit information is 0, the terminal does not transmit a sounding reference signal at the time domain position corresponding to the bit; alternatively, if the value of a bit in the X-bit information is 1, the terminal does not transmit a sounding reference signal at the time domain position corresponding to the bit; if the value of a bit in the X-bit information is 0, the terminal transmits a sounding reference signal at the time domain position corresponding to the bit.

[0161] For example, when X is 2, the subband-level resource location distribution information is 2 bits. Figure 4 In (a), (c) and (d), since there is only one SRS frequency hopping in a time slot, the 2-bit information is used as a reserved bit. Figure 4 (b) and (e) of the 2-bit information, the bits in the 2-bit information are used to indicate whether the terminal transmits the SRS at the time domain position of the SRS in the 2 SRS frequency hopping. Figure 4 (f), the bits in the 2-bit information are used to indicate whether the terminal transmits SRS at the time domain positions of the first two SRS frequency hops in the four SRS frequency hops, and the bits in the 2-bit information can also be reused to indicate whether the terminal transmits SRS at the time domain positions of the last two SRS frequency hops in the four SRS frequency hops. Figure 4 In (f), when the time domain positions of the four SRS frequency hopping are configured as "1010", the third bit and the fourth bit in "1010" are configured by reusing the first bit and the second bit.

[0162] As can be seen, the terminal can determine the time domain location distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the X-bit information. Therefore, it can simply and intuitively determine which time domain locations to send the SRS and which time domain locations not to send the SRS based on the time domain location distribution, thereby improving the flexibility and scalability of SRS configuration. In addition, while ensuring flexibility, the complexity of the scheduling process on the network device side can be better controlled.

[0163] This embodiment will now specifically introduce the sub-band-level resource location distribution information including the time domain resource compression information.

[0164] In a possible example, the subband-level resource location distribution information further includes time domain resource compression information, and the time domain resource compression information can be used to compress the time domain location distribution of the sounding reference signal transmission.

[0165] Specifically, compressing the time domain position distribution of the detection reference signal frequency hopping may include the following operations: reducing the OFDM symbol interval between the time domain positions of two consecutive detection reference signal transmissions in the time-frequency domain resources of the detection reference signal transmission; or, compressing the time domain position of the detection reference signal frequency hopping forward by at least one OFDM symbol that is not used for the detection reference signal frequency hopping.

[0166] For an example, see Figure 6 , Figure 6 This is a structural diagram of the time domain position distribution of the compressed sounding reference signal frequency hopping provided by an embodiment of the present application. Among them, the black box represents the time domain position that the terminal can use to transmit SRS, and the diagonal box and the white box represent the time domain position that the terminal cannot use to transmit SRS. Figure 6 The “time domain position of SRS frequency hopping” in (b) is obtained after forward compression of one OFDM symbol not used for SRS frequency hopping. Figure 6The position distribution shown in (a), and the Figure 6 The “time domain position of SRS frequency hopping” in (b) is obtained after forward compression of 2 OFDM symbols not used for SRS frequency hopping. Figure 6 The position distribution shown in (c) reduces the OFDM symbol interval between the time domain positions of two consecutive sounding reference signal transmissions.

[0167] It can be seen that configuring the time domain resource compression mode information is beneficial to reducing the time interval for transmitting SRS, and more different resource location distributions can be obtained through compression, which is beneficial to improving the flexibility and scalability of SRS configuration.

[0168] Example 2:

[0169] In one possible example, the terminal determines first information on the position distribution of time domain and / or frequency domain resources for transmitting a detection reference signal within a detection reference signal resource based on resource position distribution information based on a subband level, which may include the following operations: the terminal determines the frequency domain position distribution for transmitting a detection reference signal within a detection reference signal resource based on resource position distribution information based on a subband level.

[0170] It should be noted that, in the frequency domain position distribution method based on the sub-band level, in Example 2, this embodiment can consider both the frequency domain position of SRS frequency hopping when the frequency hopping function is turned on and the frequency domain position of SRS transmission when the frequency hopping function is not turned on. In addition, when analyzing the frequency domain position of SRS frequency hopping or transmission, this embodiment needs to know how many sub-bands are configured in the sounding reference signal resource for SRS frequency hopping or transmission. At the same time, as described in the above embodiment, when considering turning on the frequency hopping function, n in this embodiment SRS It also has many forms.

[0171] For example, Figure 7 Four types of frequency domain resources for SRS frequency hopping or transmission are illustrated. A black box represents a frequency domain location that a terminal can use to transmit SRS, and two boxes in the frequency domain represent one subband, while one box in the time domain represents one OFDM symbol. Figure 7 (a) illustrates one subband configured in the frequency domain of the sounding reference signal resource for SRS frequency hopping or transmission. Therefore, the terminal can transmit the SRS on the one subband. Figure 7 (b) illustrates two subbands for SRS frequency hopping or transmission configured in the frequency domain of the sounding reference signal resource. Therefore, the terminal can transmit the SRS on the two subbands. Figure 7 (c) illustrates two subbands for SRS frequency hopping or transmission configured in the frequency domain of the sounding reference signal resource. Therefore, the terminal can transmit the SRS on the two subbands. Figure 7(d) illustrates four subbands for SRS frequency hopping or transmission configured in the frequency domain of the sounding reference signal resource. Therefore, the terminal can transmit the SRS on the four subbands.

[0172] Specifically, the subband-level resource location distribution information may include: first bitmap information or X-bit information, where X is an integer greater than or equal to 2. It is understandable that the terminal may determine the frequency domain location distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the first bitmap information or the X-bit information.

[0173] Consistent with the above description of the first bitmap information, this embodiment will further specifically introduce the subband-level resource location distribution information as the first bitmap information.

[0174] Specifically, the length of the first bitmap information may be determined by the number of subbands configured in the sounding reference signal resource.

[0175] Furthermore, the length of the first bitmap information may be determined by the number of subbands configured in the sounding reference signal resource for sounding reference signal frequency hopping or transmission.

[0176] Furthermore, the length of the first bitmap information may be N subband bits. Among them, N subband Indicates the number of subbands configured in the sounding reference signal resource for sounding reference signal frequency hopping or transmission.

[0177] Specifically, the position distribution of the bits in the first bitmap information corresponds to the position distribution of the time-frequency domain resources used to transmit the sounding reference signal. It should be noted that the time-frequency domain resources used to transmit the sounding reference signal can be understood as the OFDM symbols used to transmit the sounding reference signal in the time domain and the subbands used to transmit the sounding reference signal in the frequency domain.

[0178] Furthermore, the first bitmap information has a corresponding relationship from low to high bits and the frequency domain of the sounding reference signal resource from low to high bits.

[0179] Specifically, the first bit in the first bitmap information is used to indicate whether the terminal transmits a sounding reference signal at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

[0180] Further, if the value of the first bit is 1, the terminal transmits a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; if the value of the first bit is 0, the terminal does not transmit a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; or, if the value of the first bit is 1, the terminal does not transmit a detection reference signal at the time-frequency domain position corresponding to the position of the first bit; if the value of the first bit is 0, the terminal transmits a detection reference signal at the time-frequency domain position corresponding to the position of the first bit.

[0181] For an example, see Figure 8 , Figure 8 A schematic diagram of a structure for determining the frequency domain position distribution for transmitting a sounding reference signal within a sounding reference signal resource based on second bitmap information is provided. A black box represents a frequency domain position where a terminal can transmit an SRS, while a slashed box and a white box represent a frequency domain position where a terminal cannot transmit an SRS. In the frequency domain, two boxes represent one subband, while in the time domain, one box represents one OFDM symbol. Figure 8 In (a), the first bitmap information is "1", and the frequency domain position corresponding to the position of the bit "1" in the first bitmap information is "one subband for transmitting SRS configured in the frequency domain of the sounding reference signal resource". Figure 8 In (c), the first bitmap information is "10", and the frequency domain position corresponding to the position of the first bit "1" in the first bitmap information is "the first subband for transmitting SRS configured in the frequency domain of the sounding reference signal resource", and the frequency domain position corresponding to the position of the second bit "0" is "the second subband for transmitting SRS configured in the frequency domain of the sounding reference signal resource". At the same time, Figure 8 The same can be said for (b) and (d).

[0182] It can be seen that the terminal can determine the frequency domain position distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the first bitmap information. Therefore, it can simply and intuitively determine which frequency domain positions send the SRS and which frequency domain positions do not send the SRS based on the frequency domain position distribution, thereby ensuring that the SRS configuration has good flexibility and scalability. In addition, Example 2 can expand the SRS transmission in Example 1, which only supports frequency hopping, to support both frequency hopping and non-frequency hopping.

[0183] Regarding the consistency of the above X-bit information, the following embodiment of the present application will specifically introduce the resource location distribution mode information based on the subband level as X-bit information.

[0184] Specifically, when Y time-frequency domain resources for transmitting a sounding reference signal are configured in one time slot of the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, X bits of information are used as reserved bits; and / or, if Y is less than or equal to X, whether the terminal transmits the sounding reference signal on the Y time-frequency domain resources is indicated by bits in the X bits of information; and / or, if Y is greater than X, in addition to whether the terminal transmits the sounding reference signal on X of the Y time-frequency domain resources being indicated by bits in the X bits of information, whether the terminal transmits the sounding reference signal on the remaining sounding reference signals on the Y time-frequency domain resources is indicated by reusing bits in the X bits of information.

[0185] Specifically, if the value of a bit in the X-bit information is 1, the terminal transmits a sounding reference signal at the time domain position corresponding to the bit; if the value of a bit in the X-bit information is 0, the terminal does not transmit a sounding reference signal at the time domain position corresponding to the bit; alternatively, if the value of a bit in the X-bit information is 1, the terminal does not transmit a sounding reference signal at the time domain position corresponding to the bit; if the value of a bit in the X-bit information is 0, the terminal transmits a sounding reference signal at the time domain position corresponding to the bit.

[0186] For an example, see Figure 9 Among them, the black box represents the frequency domain position that the terminal can use to transmit SRS, while the diagonal box and the white box represent the frequency domain position that the terminal cannot use to transmit SRS. In the frequency domain, two boxes represent one subband, and in the time domain, one box represents one OFDM symbol. When X is 2, the resource location distribution method information based on the subband level is 2 bits of information. For Figure 9 (a), when one subband for sounding reference signal frequency hopping or transmission is configured in the sounding reference signal resource, the 2-bit information is used as a reserved bit. Figure 9 (d) In the case where 4 subbands for sounding reference signal frequency hopping or transmission are configured in the sounding reference signal resource, the bits in the 2-bit information are used to indicate whether the terminal transmits SRS on the first 2 subbands of the 4 subbands, and the bits in the 2-bit information can also be reused to indicate whether the terminal transmits SRS on other subbands of the 4 subbands. At the same time, Figure 9 The same can be said for (b) and (c).

[0187] As can be seen, the terminal can determine the frequency domain location distribution for transmitting the sounding reference signal within the sounding reference signal resource based on the X-bit information. Therefore, it can simply and intuitively determine which frequency domain locations to send the SRS and which frequency domain locations not to send the SRS based on the frequency domain location distribution, thereby improving the flexibility and scalability of SRS configuration. In addition, while maintaining flexibility, the complexity of the scheduling process on the network device side can be better controlled.

[0188] The following embodiments of the present application will specifically introduce the sub-band level resource location distribution information including the time domain resource compression information.

[0189] In a possible example, the subband-level resource location distribution information further includes time domain resource compression information, and the time domain resource compression information can be used to compress the time domain location distribution of the sounding reference signal frequency hopping.

[0190] It should be noted that the time domain resource compression method information in this embodiment is consistent with that in the above-mentioned embodiment 1 and will not be repeated here.

[0191] It can be seen that configuring the time domain resource compression mode information is beneficial to reducing the time interval for transmitting SRS, and more different resource location distributions can be obtained through compression, which is beneficial to improving the flexibility and scalability of SRS configuration.

[0192] Example 3:

[0193] In one possible example, the terminal determines the resource location distribution for transmitting the detection reference signal based on the first information, which may include the following operations: the terminal determines the frequency domain location distribution for transmitting the detection reference signal within the subband based on the resource location distribution method information within the subband.

[0194] It should be noted that Example 3 mainly analyzes the frequency domain position distribution of the sounding reference signal resources in the subband and transmits the sounding reference signal based on the frequency domain position distribution in the subband. The frequency domain resources in the subband can be determined by the subband size of the subband.

[0195] For an example, see Figure 10 , when the subband size is 4 PRBs, Figure 10 15 forms of frequency domain position distribution within the sub-band are illustrated, wherein black boxes represent frequency domain positions within the sub-band where the terminal can transmit SRS, and white boxes represent frequency domain positions within the sub-band where the terminal cannot transmit SRS.

[0196] Specifically, the resource location distribution information within the subband may include at least one of the following: second bitmap information, M-bit information, and S first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1. It is understandable that the terminal may determine the frequency domain location distribution for transmitting the sounding reference signal within the subband based on the second bitmap information, the M-bit information, or the S first indication field information.

[0197] This embodiment will now specifically introduce the second bitmap information based on the resource location distribution information within the sub-band.

[0198] Specifically, the length of the second bitmap information satisfies at least one of the following conditions: the length of the second bitmap information is L bits, and the length of the second bitmap information is determined by the number of PRBs contained in the subband size of the subband. It should be noted that the length of the configured second bitmap information can be less than or equal to the number of PRBs contained in the subband size, or greater than the number of PRBs contained in the subband size. For example, the length of the second bitmap information is 4 bits, and the number of PRBs contained in the subband size is 8.

[0199] Wherein, K is an integer greater than or equal to 1.

[0200] Furthermore, K is a value in the set {4, 8, 12, 16} bits. It is understandable that the length of the second bitmap information can be a value in the set {4, 8, 12, 16} bits. Further, the length of the second bitmap information can be

[0201] in,

[0202] Indicates the number of PRBs included in the subband size of the sounding reference signal resource.

[0203] Specifically, the position of the bits in the second bitmap information corresponds to the frequency domain position distribution for transmitting the sounding reference signal in the subband. It should be noted that the frequency domain position for transmitting the sounding reference signal can be understood as the position of the PRB for transmitting the sounding reference signal in the subband.

[0204] Furthermore, the second bitmap information has a corresponding relationship from low to high bits and the frequency domain of the subband in the sounding reference signal resource from low to high bits.

[0205] Specifically, the second bit in the second bit map information is used to indicate whether the terminal transmits a sounding reference signal at a frequency domain position within the subband corresponding to the position of the second bit, and the second bit is a bit in the second bit map information.

[0206] Further, if the value of the second bit is 1, the terminal transmits the detection reference signal at the frequency domain position in the subband corresponding to the second bit position; if the value of the second bit is 0, the terminal does not transmit the detection reference signal at the frequency domain position in the subband corresponding to the second bit position; or, if the value of the second bit is 1, the terminal does not transmit the detection reference signal at the frequency domain position in the subband corresponding to the second bit position; if the value of the second bit is 0, the terminal transmits the detection reference signal at the frequency domain position in the subband corresponding to the second bit position.

[0207] For an example, see Figure 11 , Figure 11 A schematic diagram of a structure for determining the frequency domain position distribution for transmitting a sounding reference signal within a subband based on the second bitmap information is provided. In which, the black boxes represent the frequency domain positions that the terminal can use to transmit SRS, while the diagonal boxes and white boxes represent the frequency domain positions that the terminal cannot use to transmit SRS. Figure 11 In (a), the second bitmap information is "1010", and the frequency domain position corresponding to the position of the first bit "1" in the second bitmap information is "the first PRB for transmitting SRS in the subband", the frequency domain position corresponding to the position of the second bit "0" is "the second PRB for transmitting SRS in the subband", the frequency domain position corresponding to the position of the third bit "1" is "the third PRB for transmitting SRS in the subband", and the frequency domain position corresponding to the position of the fourth bit "0" is "the fourth PRB for transmitting SRS in the subband". At the same time, Figure 11 The same can be said for (b), (c), (d), (e) and (f).

[0208] It can be seen that the terminal can determine the frequency domain position distribution for transmitting the sounding reference signal within the subband based on the second bit map information. Therefore, it can simply and intuitively determine which frequency domain positions send SRS and which frequency domain positions do not send SRS based on the frequency domain position distribution within the subband, thereby ensuring that the configuration of the SRS has good flexibility and scalability.

[0209] The following embodiments of the present application will specifically introduce the resource location distribution information within the sub-band as M bits of information.

[0210] Method 1:

[0211] In a possible example, all bits in the M-bit information indicate the frequency domain position distribution for transmitting the sounding reference signal in the subband according to a coding combination manner.

[0212] It should be noted that when there is only Figure 10In the 6 forms shown in (f), (g), (l), (m), (n), and (o), the M-bit information can be 3-bit information, and all bits in the 3-bit information indicate the 6 forms according to the coding combination method, for example, "000" indicates Figure 10 In (f), “001” indicates Figure 10 In (g), "010" indicates Figure 10 (1) in the above text, etc., and no specific restrictions are imposed on this. Figure 10 In the 10 forms shown in (f) to (o), the M-bit information can be 4-bit information, and all bits of the 4-bit information indicate the 10 forms according to the coding combination, for example, "0000" indicates Figure 10 (f) in the subband. Figure 10 In the case of the four forms shown in (b) to (e), the M-bit information can be 2-bit information, and all bits in the 2-bit information indicate the four forms according to the coding combination method, for example, "00" indicates Figure 10 (b) etc., and no specific limitation is imposed on this.

[0213] Method 2:

[0214] In one possible example, N bits in the M-bit information are used to indicate the number P of frequency domain resources used to transmit the detection reference signal in the subband, where N is an integer greater than or equal to 1, and P is the number of PRBs contained in the subband size that is less than or equal to the subband; the remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to the coding combination method.

[0215] Specifically, the value of N may be determined by the number of modes for the number of frequency domain resources used to transmit sounding reference signals within a subband. It should be noted that when it is known that the number of frequency domain resources used to transmit SRS within a subband configured by a network device has only two modes (e.g., P∈{1,2}), the value of N may be 1. In this case, one bit may be used in the M-bit information to indicate the two modes. For example, the one bit may be "0" to indicate that P is 1, and the one bit may be "1" to indicate that P is 2. When it is known that the number of frequency domain resources used to transmit SRS within a subband configured by a network device has only four modes (e.g., P∈{1,2,3,4}), the value of N may be 2. In this case, two bits may be used in the M-bit information to indicate the four modes. For example, the two bits may be "00" to indicate that P is 1, and the one bit may be "01" to indicate that P is 2, etc., without specific limitation.

[0216] Specifically, the value of N may be determined by the number of PRBs included in the subband size. It should be noted that when the subband size includes 4 PRBs, the value of N may be 3. In this case, three bits of the M-bit information may be used to indicate the number P of frequency-domain resources used for SRS transmission within the subband, using a coding combination. For example, the three bits may be "000" to indicate P is 0, the three bits may be "001" to indicate P is 1, the three bits may be "100" to indicate P is 4, and so on, without specific limitation. When the subband size includes 8 PRBs, the value of N may be 4. In this case, four bits of the M-bit information may be used to indicate the number P of frequency-domain resources used for SRS transmission within the subband, using a coding combination. For example, the four bits may be "0000" to indicate P is 0, the three bits may be "1000" to indicate P is 8, and so on, without specific limitation.

[0217] Example 1: When there is only Figure 10 In the six forms shown in (f), (g), (l), (m), (n), and (o), and when the M-bit information is 3-bit information, since the number of frequency domain resources used to transmit the sounding reference signal in the sub-band configured by the known network device has only two modes (i.e., P∈{1,2}), the value of N is 1. At this time, the first bit in the 3-bit information is used to indicate that the number P of frequency domain resources used to transmit SRS in the sub-band is 1 or 2. Among them, the first bit is "0" indicating that P is 2, and the first bit is "1" indicating that P is 1. Therefore, the 3-bit information is "00x" indicating Figure 10 (f) in the , and "x" indicates a reserved bit; the 3 bits information is "01x" indicating Figure 10 (g) in the 3 bits; the 3 bits information is "100" indicating Figure 10 (l) in the 3-bit information is "101" indicating Figure 10 (m); the 3-bit information is "110" indicating Figure 10 (n) in the 3-bit information; the 3-bit information is "111" indicating Figure 10 (o) in the.

[0218] Example 2: When there is only Figure 10There are 8 forms shown in (f), (g), (h), (i), (l), (m), (n), and (o) in the figure, and when the M-bit information is 3-bit information, since it is known that there are only two modes for the number of frequency domain resources used to transmit the sounding reference signal in the subband configured by the network device (i.e., P∈{1,2}), the value of N is 1. At this time, the first bit in the 3-bit information is used to indicate that the number P of frequency domain resources used to transmit SRS in the subband is 1 or 2. Among them, the first bit is "0" indicating that P is 2, and the first bit is "1" indicating that P is 1. Therefore, the 3-bit information is "000" indicating Figure 10 (f) in the 3 bits; the 3 bits information is "001" indicating Figure 10 (g) in the 3-bit information is "010" indicating Figure 10 (h); the 3 bits of information are "011" indicating Figure 10 (i) in the 3-bit information indicates "100" Figure 10 (l) in the 3-bit information is "101" indicating Figure 10 (m); the 3-bit information is "110" indicating Figure 10 (n) in the 3-bit information; the 3-bit information is "111" indicating Figure 10 (o) in the.

[0219] As can be seen, the terminal can determine the frequency domain location distribution for SRS transmission within the sounding reference signal resource based on K bits of information. Therefore, it can simply and intuitively determine which frequency domain locations to send SRS and which frequency domain locations not to send SRS based on the frequency domain location distribution, thereby improving the flexibility and scalability of SRS configuration. In addition, while maintaining flexibility, the complexity of the scheduling process on the network device side can be better controlled.

[0220] The following embodiment of the present application will specifically introduce the information of the resource location distribution mode within the sub-band as S first indication field information.

[0221] Specifically, the value of S may be determined by the number of modes of the number of frequency domain resources used to transmit the sounding reference signal within the subband. The first indicator field is used to indicate the number Q of frequency domain resources used to transmit the sounding reference signal within the subband, where Q is the number of PRBs contained in the subband size that is less than or equal to the subband size.

[0222] It should be noted that, when it is known that the number of frequency domain resources used to transmit SRS in the sub-band configured by the network device has only two modes (such as Q∈{1,2}), the value of S can be 2. At this time, the network device can use two first indication domain information to indicate the two modes respectively. For example, the first first indication domain information is used to indicate that Q is 1, and the second first indication domain information is used to indicate that Q is 2. When it is known that the number of frequency domain resources used to transmit SRS in the sub-band configured by the network device has only four modes (such as Q∈{1,2,3,4}), the value of S can be 4. At this time, the network device can use four first indication domain information to indicate the four modes respectively. For example, the first first indication domain information is used to indicate that Q is 1, the second first indication domain information is used to indicate that Q is 2, the third first indication domain information is used to indicate that Q is 3, and the fourth first indication domain information is used to indicate that Q is 4.

[0223] Furthermore, the first indication field information includes R bit information, and all bits in the R bit information indicate the position distribution of Q frequency domain resources in the subband according to a coding combination method, where R is an integer greater than or equal to 1.

[0224] Example 1: When there is only Figure 10 When there are six forms shown in (f), (g), (l), (m), (n), and (o), since it is known that there are only two modes for the number of frequency domain resources used to transmit SRS in the sub-band configured by the network device (i.e., Q∈{1,2}), the value of S is 2. At this time, the network device can use two first indication domain information to indicate the two modes respectively. Among them, the first first indication domain information is used to indicate that Q is 2, and the second first indication domain information is used to indicate that Q is 1. At the same time, the first first indication domain information contains 1 bit of information, and the second first indication domain information contains 2 bits of information. Therefore, the 1 bit of information is "1" to indicate Figure 10 (f) in the 1-bit information is "0" indicating Figure 10 (g) in the 2-bit information is "00" indicating Figure 10 (l); the 2-bit information is "01" indicating Figure 10 (m); the 2-bit information is "10" indicating Figure 10 (n) in the 2-bit information; the 2-bit information is "11" indicating Figure 10 (o) in the.

[0225] Example 2: When there is only Figure 10When the eight forms shown in (f), (g), (h), (i), (l), (m), (n), and (o) are used, since it is known that there are only two modes for the number of frequency domain resources used to transmit SRS in the sub-band configured by the network device (i.e., Q∈{1,2}), the value of S is 2. At this time, the network device can use two first indication domain information to indicate the two modes respectively. Among them, the first first indication domain information is used to indicate that Q is 2, and the second first indication domain information is used to indicate that Q is 1. At the same time, the first first indication domain information contains 2 bits of information, and the second first indication domain information contains 2 bits of information. Therefore, the 2 bits of information in the first first indication domain information is "00" to indicate Figure 10 (f) in the first indication field; the 2 bits of information in the first indication field are "01" indicating Figure 10 (g); the 2 bits of information in the first indication field information is "10" indicating Figure 10 (h); the 2 bits of information in the first indication field information are "11" indicating Figure 10 (i) in the second first indication field; the 2 bits of information in the second first indication field are "00" indicating Figure 10 (l); the 2 bits of information in the second first indication field information is "01" indicating Figure 10 (m); the 2 bits of information in the second first indication field information is "10" Figure 10 (n); the 2 bits of information in the second first indication field information is "11" indicating Figure 10 (o) in the.

[0226] As can be seen, the terminal can determine the frequency domain location distribution for transmitting the SRS within the sounding reference signal resource based on the S first indicator field information. Therefore, it can simply and intuitively determine which frequency domain locations to send the SRS and which frequency domain locations not to send the SRS based on the frequency domain location distribution, thereby improving the flexibility and scalability of the SRS configuration. In addition, while maintaining flexibility, it is also conducive to ensuring good readability.

[0227] In one possible example, the terminal determines the frequency domain position distribution for transmitting the detection reference signal in the subband based on the resource position distribution method information within the subband, including: the terminal determines the frequency domain position distribution for transmitting the detection reference signal in the subband by reusing or using the same transmission mode based on the resource position distribution method information within the subband.

[0228] It should be noted that Example 3 specifically illustrates how to determine the frequency domain position distribution for SRS transmission within a subband based on the resource position distribution method information within the subband, using the case where the subband size is 4 PPRs. Therefore, for cases where the subband size is 8, 12, 16, or more PRBs, the frequency domain position distribution for SRS transmission within 4 PRBs determined based on the resource position distribution method information within the subband in Example 3 can be used as a basis to determine the position distribution when the subband size is 8, 12, 16, or more PRBs using a reuse or the same transmission mode based on the resource position distribution method information within the subband.

[0229] Example 1: Figure 12 (a) is an example of the frequency domain position distribution of the 4 PRBs for SRS transmission determined based on the resource position distribution information within the subband in Example 3. Therefore, the frequency domain position distribution of the 8 PRBs for SRS transmission is determined in a reused manner based on the resource position distribution information within the subband. Figure 12 As shown in (b) in .

[0230] Example 2: Figure 13 (a) is an example of the frequency domain position distribution of the 4 PRBs for SRS transmission determined based on the resource position distribution information within the subband in Example 3. Therefore, the frequency domain position distribution of the 8 PRBs for SRS transmission determined based on the resource position distribution information within the subband in the same transmission mode is Figure 13 As shown in (b) in .

[0231] Example 4:

[0232] In one possible example, the terminal determines the resource location distribution for transmitting the detection reference signal based on the first information, which may include the following operations: the terminal determines the time-frequency domain location distribution for transmitting the detection reference signal within the detection reference signal resource based on the resource location distribution method information based on the subband level and the resource location distribution method information based on the subband.

[0233] It should be noted that Example 4 primarily analyzes the time-frequency domain location distribution within a sounding reference signal resource used to transmit a sounding reference signal when the first information is subband-level resource location distribution information and intra-subband resource location distribution information. Therefore, the specific technical solution in Example 4 is consistent with the technical solutions in Examples 1, 2, and 3 above, and will not be further described.

[0234] It can be seen that in an embodiment of the present application, the network device sends the first information to the terminal; then, the terminal obtains the first information and determines the resource location distribution for transmitting the sounding reference signal based on the first information. Since the first information is sent by the network device to the terminal, it is conducive to the network device configuring the resource location distribution for transmitting the SRS. In addition, the terminal determines the resource location distribution for transmitting the SRS based on the first information, and then transmits the SRS through the resource location distribution. Since the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, the transmission of all or part of the SRS is achieved, thereby improving the utilization efficiency of the frequency band resources. At the same time, the transmission of part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources not used to transmit the SRS can be configured to other terminals to improve the multiplexing capability of the SRS.

[0235] The above mainly introduces the technical solution of this embodiment from the perspective of the method side. It is understandable that, in order to implement the above functions, the terminal and the network device include hardware structures and / or software modules corresponding to the execution of each function. Those skilled in the art should easily realize that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software-driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0236] This embodiment can divide the terminal and network device into functional units based on the above-mentioned method examples. For example, each functional unit can be divided according to its function, or two or more functions can be integrated into a single processing unit. The above-mentioned integrated units can be implemented in the form of hardware or software program modules. It should be noted that the division of units in this embodiment is illustrative and only represents a logical functional division. In actual implementation, other division methods may be used.

[0237] In the case of an integrated unit, Figure 14 The block diagram of the functional units of a sounding reference signal configuration device is shown. The sounding reference signal configuration device 1400 is applied to a terminal and specifically includes: a processing unit 1402 and a communication unit 1403. The processing unit 1402 is used to control and manage the actions of the terminal. For example, the processing unit 1402 is used to support the terminal to perform Figure 2The steps in and / or other processes of the technical solution described in this embodiment. The communication unit 1403 is used to support communication between the terminal and the network device. The sounding reference signal configuration device 1400 may also include a storage unit 1401, which is used to store program code and data of the terminal.

[0238] Among them, the processing unit 1402 can be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, transistor logic devices, hardware components or any combination thereof. It can implement or execute the various exemplary logic blocks, modules and circuits described in combination with the contents disclosed in this application. The processing unit 1402 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSP and microprocessors, and so on. The communication unit 1403 can be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 1401 can be a memory. When the processing unit 1402 is a processor, the communication unit 1403 is a communication interface, and the storage unit 1401 is a memory, the sounding reference signal configuration device 1400 involved in this embodiment can be Figure 16 The terminal shown.

[0239] In specific implementation, the processing unit 1402 is used to execute any step executed by the terminal in the above method embodiment, and when performing data transmission such as sending, the communication unit 1403 may be optionally called to complete the corresponding operation. Detailed description is given below.

[0240] The processing unit 1402 is configured to: obtain first information from a network device, where the first information is used to indicate resource configuration of a sounding reference signal (SRS); and determine a resource location distribution for transmitting the SRS according to the first information.

[0241] It can be seen that in an embodiment of the present application, the sounding reference signal configuration device applied to the terminal can obtain the first information and determine the resource location distribution for transmitting the sounding reference signal based on the first information. Since the first information is sent by the network device to the sounding reference signal configuration device, it is conducive to the network device to configure the resource location distribution for transmitting the SRS. In addition, the sounding reference signal configuration device determines the resource location distribution for transmitting the SRS based on the first information, and then transmits the SRS through the resource location distribution. Since the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, the transmission of all or part of the SRS is achieved, thereby improving the utilization efficiency of the frequency band resources. At the same time, the transmission of part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources not used to transmit the SRS can be configured to other terminals to improve the multiplexing capability of the SRS.

[0242] In a possible example, the first information includes at least one of the following: resource location distribution information based on a sub-band level, and resource location distribution information based on an intra-sub-band level.

[0243] In one possible example, the subband size of the subband satisfies at least one of the following conditions: the subband size of the subband is K physical resource blocks PRB, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the SRS transmission bandwidth, and the subband size of the subband is the minimum unit of frequency hopping of the sounding reference signal; wherein, the first parameter is used to indicate the frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

[0244] In a possible example, the subband size of the subband is configured by radio resource control RRC signaling.

[0245] In one possible example, in terms of determining the resource location distribution for transmitting the SRS based on the first information, the processing unit 1402 is specifically used to: determine the location distribution of time domain and / or frequency domain resources for transmitting the SRS within the sounding reference signal resource based on the subband level resource location distribution information.

[0246] In a possible example, the subband-level resource location distribution information includes: first bitmap information or X-bit information, where X is an integer greater than or equal to 2.

[0247] In a possible example, the length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

[0248] In a possible example, the field in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing OFDM symbols and the repetition factor.

[0249] In one possible example, the set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

[0250] In a possible example, the position distribution of the bits in the first bitmap information corresponds to the position distribution of the time-frequency domain resources used to transmit the SRS.

[0251] In a possible example, the first bit in the first bitmap information is used to indicate whether to transmit the SRS at a time-frequency domain position corresponding to the position of the first bit, and the first bit is a bit in the first bitmap information.

[0252] In a possible example, when Y time-frequency domain resources for transmitting the SRS are configured within the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are reserved bits; and / or, if Y is less than or equal to X, whether the SRS is transmitted on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and / or, if Y is greater than X, in addition to whether the SRS is transmitted on X of the Y time-frequency domain resources being indicated by the bits in the X-bit information, whether the SRS is transmitted on the remaining time-frequency domain resources of the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

[0253] In a possible example, the sub-band level-based resource location distribution information further includes: time domain resource compression information, and the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

[0254] In a possible example, compressing the time domain position distribution of the SRS transmission includes: reducing the OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission.

[0255] In one possible example, in terms of determining the resource location distribution for transmitting the SRS based on the first information, the processing unit 1402 is specifically used to: determine the frequency domain location distribution for transmitting the SRS within the subband based on the resource location distribution method information within the subband.

[0256] In a possible example, the information on the resource location distribution method within the subband includes at least one of the following: second bit map information, M bit information, and S first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1.

[0257] In one possible example, the length of the second bit map information satisfies at least one of the following conditions: the length of the second bit map information is L bits, and the length of the second bit map information is determined by the number of PRBs contained in the subband size of the subband; wherein L is an integer greater than or equal to 1.

[0258] In a possible example, the positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the sub-band for transmitting the SRS.

[0259] In a possible example, the second bit in the second bitmap information is used to indicate whether the SRS is transmitted at the frequency domain position within the subband corresponding to the position of the second bit, and the second bit is a bit in the second bitmap information.

[0260] In a possible example, all bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

[0261] In one possible example, N bits in the M-bit information are used to indicate the number P of frequency domain resources in the subband used to transmit the SRS, where N is an integer greater than or equal to 1, and P is the number of PRBs contained in a subband size that is less than or equal to the subband; the remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to a coding combination method.

[0262] In a possible example, the value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

[0263] In a possible example, the first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs contained in the subband size of the subband.

[0264] In a possible example, the first indication domain information includes R bit information, all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

[0265] In one possible example, in terms of determining the frequency domain position distribution for transmitting the SRS within the sub-band based on the resource position distribution information within the sub-band, the processing unit 1402 is specifically used to: determine the frequency domain position distribution for transmitting the SRS within the sub-band by reusing or using the same transmission mode through the resource position distribution information within the sub-band.

[0266] In a possible example, the first information is transmitted by at least one of RRC signaling, a medium access control layer control unit MACCE, and downlink control information DCI.

[0267] In the case of an integrated unit, Figure 15 A block diagram of the functional units of another sounding reference signal configuration device is provided. The sounding reference signal device 1500 is applied to a network device and specifically includes: a processing unit 1502 and a communication unit 1503. The processing unit 1502 is used to control and manage the actions of the network device. For example, the processing unit 1502 is used to support the network device to execute Figure 2 The steps in and / or other processes of the technical solution described in this embodiment. The communication unit 1503 is used to support communication between the network device and the terminal. The sounding reference signal device 1500 may also include a storage unit 1501, which is used to store program code and data of the network device.

[0268] Among them, the processing unit 1502 can be a processor or a controller, for example, it can be a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component or any combination thereof. It can implement or execute the various exemplary logic blocks, modules and circuits described in conjunction with this embodiment. The processing unit 1502 can also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of DSPs and microprocessors, etc. The communication unit 1503 can be a communication interface, a transceiver and a transceiver circuit, etc., and the storage unit 1501 can be a memory. When the processing unit 1502 is a processor, the communication unit 1503 is a communication interface, and the storage unit 1501 is a memory, the sounding reference signal configuration device 1500 involved in the embodiment of the present application can be Figure 17 The network devices shown.

[0269] In specific implementation, the processing unit 1502 is used to execute any step executed by the network device in the above method embodiment, and when performing data transmission such as sending, the communication unit 1503 may be optionally called to complete the corresponding operation. Detailed description is given below.

[0270] The processing unit 1502 is configured to: send first information to the terminal, where the first information is used to indicate resource configuration of a sounding reference signal SRS.

[0271] It can be seen that in an embodiment of the present application, the sounding reference signal configuration device applied to the network device can send the first information to the terminal, which is conducive to the network device configuring the resource location distribution for transmitting the SRS. In addition, the terminal determines the resource location distribution for transmitting the SRS based on the first information, and then transmits the SRS through the resource location distribution. Since the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, the transmission of all or part of the SRS is achieved, thereby improving the utilization efficiency of the frequency band resources. At the same time, the transmission of part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources not used to transmit the SRS can be configured to other terminals to improve the multiplexing capability of the SRS.

[0272] In a possible example, the first information includes at least one of the following: resource location distribution information based on a sub-band level, and resource location distribution information based on an intra-sub-band level.

[0273] In one possible example, the subband size of the subband satisfies at least one of the following: the subband size of the subband is K physical resource blocks PRB, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the SRS transmission bandwidth, and the subband size of the subband is the minimum unit of frequency hopping of the sounding reference signal; wherein the first parameter is used to indicate the frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

[0274] In a possible example, the subband size of the subband is configured by radio resource control RRC signaling.

[0275] In a possible example, the subband-level resource location distribution information includes: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2.

[0276] In one possible example, the length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

[0277] In a possible example, the field in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing OFDM symbols and a repetition factor.

[0278] In one possible example, the set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

[0279] In a possible example, the position distribution of the bits in the first bitmap information corresponds to the time-frequency domain position distribution used to transmit the SRS.

[0280] In a possible example, the first bit in the first bitmap information is used to indicate whether the SRS is transmitted at a time-frequency domain position corresponding to the position of the first bit, and the first bit is a bit in the first bitmap information.

[0281] In a possible example, when Y time-frequency domain resources for transmitting the SRS are configured within the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are reserved bits; and / or, if Y is less than or equal to X, whether the SRS is transmitted on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and / or, if Y is greater than X, in addition to whether the SRS is transmitted on X of the Y time-frequency domain resources being indicated by the bits in the X-bit information, whether the SRS is transmitted on the remaining time-frequency domain resources of the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

[0282] In a possible example, the sub-band level-based resource location distribution information further includes: time domain resource compression information, and the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

[0283] In a possible example, compressing the time domain position distribution of the SRS frequency hopping includes: reducing the OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission.

[0284] In a possible example, the information on the resource location distribution method within the subband includes at least one of the following: second bit map information, M bit information, and S first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1.

[0285] In one possible example, the length of the second bit map information satisfies at least one of the following conditions: the length of the second bit map information is L bits, and the length of the second bit map information is determined by the number of PRBs contained in the subband size of the subband; wherein L is an integer greater than or equal to 1.

[0286] In a possible example, the positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the sub-band for transmitting the SRS.

[0287] In a possible example, the second bit in the second bitmap information is used to indicate whether the SRS is transmitted at the frequency domain position within the subband corresponding to the position of the second bit, and the second bit is a bit in the second bitmap information.

[0288] In a possible example, all bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

[0289] In one possible example, N bits in the M-bit information are used to indicate the number P of frequency domain resources in the subband used to transmit the SRS, where N is an integer greater than or equal to 1, and P is the number of PRBs contained in a subband size that is less than or equal to the subband; the remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to a coding combination method.

[0290] In a possible example, the value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

[0291] In a possible example, the first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs contained in the subband size of the subband.

[0292] In a possible example, the first indication domain information includes R bit information, all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

[0293] In a possible example, the first information is transmitted by at least one of RRC signaling, a medium access control layer control unit MACCE, and downlink control information DCI.

[0294] See also Figure 16 , Figure 16 16 is a schematic diagram of a terminal structure provided by an embodiment of the present application, wherein the terminal 1600 includes a processor 1610, a memory 1620, a communication interface 1630, and at least one communication bus for connecting the processor 1610, the memory 1620, and the communication interface 1630.

[0295] The memory 1620 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used to store relevant instructions and data.

[0296] The communication interface 1630 is used to receive and send data.

[0297] The processor 1610 may be one or more CPUs. When the processor 1610 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0298] The processor 1610 in the terminal 1600 is used to read one or more program codes 1621 stored in the memory 1620 and perform the following operations: obtain first information from the network device, the first information is used to indicate the resource configuration of the sounding reference signal SRS; determine the resource location distribution for transmitting the SRS based on the first information.

[0299] It should be noted that the implementation of each operation can also refer to Figure 2 The corresponding description of the method embodiment shown in the figure shows that the terminal 1600 can be used to execute the terminal side method in the above embodiment, which will not be repeated here.

[0300] See also Figure 17 , Figure 17 17 is a schematic diagram of a network device according to an embodiment of the present application, wherein the network device 1700 includes a processor 1710 , a memory 1720 , a communication interface 1730 , and at least one communication bus for connecting the processor 1710 , the memory 1720 , and the communication interface 1730 .

[0301] The memory 1720 includes but is not limited to a random access memory, a read-only memory, an erasable programmable read-only memory or a portable read-only memory, and is used to store relevant instructions and data.

[0302] The communication interface 1730 is used to receive and send data.

[0303] The processor 1710 may be one or more CPUs. When the processor 1710 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0304] The processor 1710 in the network device 1700 is configured to read one or more program codes 1721 stored in the memory 1720 and perform the following operations: sending first information to the terminal, where the first information is used to indicate resource configuration of a sounding reference signal SRS.

[0305] It should be noted that the implementation of each operation can also refer to Figure 2 The corresponding description of the method embodiment shown is that the network device 1700 can be used to execute the method on the network device side of the above embodiment, which will not be repeated here.

[0306] An embodiment of the present application also provides a chip, wherein the chip includes a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes some or all of the steps described for the terminal and network device in the above method embodiment.

[0307] An embodiment of the present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program is operable to enable a computer to execute some or all of the steps described by the terminal and network device in the above method embodiment.

[0308] The present application also provides a computer program product, wherein the computer program product includes a computer program that is operable to cause a computer to execute some or all of the steps described for the terminal and network device in the above method embodiment. The computer program product can be a software installation package.

[0309] Those skilled in the art will appreciate that, in one or more of the above examples, the functions described in the embodiments of the present application can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiments of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. Available media can be magnetic media (e.g., floppy disk, hard disk, tape), optical media (e.g., digital video disc), or semiconductor media (e.g., solid-state hard disk), etc.

[0310] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It can be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A method for configuring a sounding reference signal, characterized in that: include: The terminal obtains first information from a network device, where the first information is used to indicate resource configuration of a sounding reference signal (SRS); Determining, by the terminal, a resource location distribution for transmitting the SRS according to the first information; The first information includes information on a resource location distribution method based on a subband, the information on a resource location distribution method based on a subband includes second bitmap information, M bits of information, and S pieces of first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1. The length of the second bitmap information satisfies the following manner: the length of the second bitmap information is L bits, the length of the second bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein L is an integer greater than or equal to 1; wherein the length of the second bitmap information is less than the number of PRBs included in the subband size; The positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the subband for transmitting the SRS; wherein the second bitmap information corresponds from low to high to the frequency domain of the subband in the sounding reference signal resource from low to high; The second bit in the second bitmap information is used to indicate whether the terminal transmits the SRS at the frequency domain position in the subband corresponding to the position of the second bit, and the second bit is one bit in the second bitmap information.

2. The method according to claim 1, characterized in that The first information further includes: resource location distribution information based on the sub-band level.

3. The method according to claim 2, characterized in that The subband size of the subband satisfies at least one of the following conditions: the subband size of the subband is K physical resource blocks PRBs, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the SRS transmission bandwidth, and the subband size of the subband is the minimum unit of frequency hopping of the sounding reference signal; wherein the first parameter is used to indicate the frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

4. The method according to claim 2, characterized in that The subband size of the subband is configured by radio resource control RRC signaling.

5. The method according to claim 2, characterized in that The terminal determining, according to the first information, a resource location distribution for transmitting the SRS, including: The terminal determines, according to the subband-level resource location distribution information, a location distribution of time domain and / or frequency domain resources for transmitting the SRS within the sounding reference signal resources.

6. The method according to claim 5, characterized in that The subband-level resource location distribution information includes: first bitmap information or X-bit information, where X is an integer greater than or equal to 2.

7. The method according to claim 6, characterized in that The length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

8. The method according to claim 7, characterized in that The domain in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols and a repetition factor.

9. The method according to claim 8, characterized in that The set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein, the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

10. The method according to any one of claims 6 to 9, characterized in that: The position distribution of the bits in the first bitmap information corresponds to the position distribution of the time-frequency domain resources used to transmit the SRS.

11. The method according to any one of claims 6 to 9, characterized in that: The first bit in the first bitmap information is used to indicate whether the terminal transmits the SRS at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

12. The method according to claim 6, characterized in that In a case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are used as reserved bits; and / or, If Y is less than or equal to X, whether the terminal transmits the SRS on the Y time-frequency domain resources is indicated by a bit in the X-bit information; and / or, If Y is greater than X, in addition to whether the terminal transmits the SRS on X time-frequency domain resources among the Y time-frequency domain resources being indicated by the bits in the X-bit information, whether the terminal transmits the SRS on the remaining time-frequency domain resources among the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

13. The method according to any one of claims 6 to 9, characterized in that: The sub-band level-based resource location distribution information further includes time domain resource compression information, where the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

14. The method according to claim 13, characterized in that The compressing the time domain position distribution of the SRS transmission includes: The OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission is reduced.

15. The method according to any one of claims 2 to 4, characterized in that: The terminal determining, according to the first information, a resource location distribution for transmitting the SRS, including: The terminal determines, according to the information on the resource location distribution mode within the sub-band, a frequency domain location distribution for transmitting the SRS within the sub-band.

16. The method according to claim 1, wherein All bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

17. The method according to claim 1, wherein N bits of the M-bit information are used to indicate the number P of frequency domain resources used to transmit the SRS in the subband, where N is an integer greater than or equal to 1, and P is the number of PRBs included in a subband size that is less than or equal to the subband size; The remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to a coding combination manner.

18. The method according to claim 1, wherein The value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

19. The method according to claim 18, characterized in that The first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs included in the subband size of the subband.

20. The method according to claim 19, characterized in that The first indication domain information includes R bit information, and all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

21. The method according to claim 15, wherein The terminal determines, according to the information about the resource location distribution mode within the sub-band, a frequency domain location distribution for transmitting the SRS within the sub-band, including: The terminal determines the frequency domain position distribution for transmitting the SRS in the sub-band by reusing or using the same transmission mode according to the information on the resource position distribution mode within the sub-band.

22. The method according to any one of claims 1 to 8, characterized in that The first information is transmitted by at least one of RRC signaling, a control unit MAC CE of a media access control layer, and downlink control information DCI.

23. A method for configuring a sounding reference signal, characterized in that: include: The network device sends first information to the terminal, where the first information is used to indicate resource configuration of a sounding reference signal (SRS); The first information includes resource location distribution information based on a subband level, wherein the resource location distribution information based on an intra-subband level includes second bitmap information, M bits of information, and S first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1; The length of the second bitmap information satisfies the following manner: the length of the second bitmap information is L bits, the length of the second bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein L is an integer greater than or equal to 1; wherein the length of the second bitmap information is less than the number of PRBs included in the subband size; The positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the subband for transmitting the SRS; wherein the second bitmap information corresponds from low to high to the frequency domain of the subband in the sounding reference signal resource from low to high; The second bit in the second bitmap information is used to indicate whether the terminal transmits the SRS at the frequency domain position in the subband corresponding to the position of the second bit, and the second bit is one bit in the second bitmap information.

24. The method according to claim 23, wherein The first information further includes: resource location distribution information based on the sub-band level.

25. The method according to claim 24, characterized in that The subband size of the subband satisfies at least one of the following conditions: the subband size of the subband is K physical resource blocks (PRBs), the subband size of the subband is determined by a first parameter, the subband size of the subband is mapped to the sounding reference signal transmission bandwidth, and the subband size of the subband is the minimum unit of sounding reference signal frequency hopping; wherein the first parameter is used to indicate frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

26. The method according to claim 24, characterized in that The subband size of the subband is configured by radio resource control RRC signaling.

27. The method according to claim 24, characterized in that The subband-level resource location distribution information includes: first bitmap information or X-bit information, where X is an integer greater than or equal to 2.

28. The method according to claim 27, characterized in that The length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

29. The method according to claim 28, characterized in that The domain in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols and a repetition factor.

30. The method according to claim 29, wherein The set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein, the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

31. The method according to any one of claims 27 to 30, characterized in that The position distribution of the bits in the first bitmap information corresponds to the time-frequency domain position distribution used to transmit the SRS.

32. The method according to any one of claims 27 to 30, characterized in that The first bit in the first bitmap information is used to indicate whether the terminal transmits the SRS at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

33. The method according to claim 27, wherein In a case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are used as reserved bits; and / or, If Y is less than or equal to X, whether the terminal transmits the SRS on the Y time-frequency domain resources is indicated by a bit in the X-bit information; and / or, If Y is greater than X, in addition to whether the terminal transmits the SRS on X time-frequency domain resources among the Y time-frequency domain resources being indicated by the bits in the X-bit information, whether the terminal transmits the SRS on the remaining time-frequency domain resources among the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

34. The method according to any one of claims 27 to 30, characterized in that The sub-band level-based resource location distribution information further includes time domain resource compression information, where the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

35. The method according to claim 34, wherein The compressing the time domain position distribution of the SRS frequency hopping includes: The OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission is reduced.

36. The method according to claim 23, wherein All bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

37. The method according to claim 23, wherein N bits of the M-bit information are used to indicate the number P of frequency domain resources used to transmit the SRS in the subband, where N is an integer greater than or equal to 1, and P is the number of PRBs included in a subband size that is less than or equal to the subband size; The remaining bits except the N bits in the M-bit information indicate the position distribution of the P frequency domain resources in the subband according to a coding combination manner.

38. The method according to claim 23, wherein The value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

39. The method according to claim 38, characterized in that The first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs included in the subband size of the subband.

40. The method according to claim 39, wherein The first indication domain information includes R bit information, and all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

41. The method according to any one of claims 23 to 30, characterized in that The first information is transmitted by at least one of RRC signaling, a control unit MAC CE of a media access control layer, and downlink control information DCI.

42. A sounding reference signal configuration device, characterized in that: Applied to a terminal, the device includes a processing unit and a communication unit, wherein the processing unit is configured to: Acquiring, by the communication unit, first information from a network device, where the first information is used to indicate resource configuration of a sounding reference signal (SRS); determining, according to the first information, a resource location distribution for transmitting the SRS; The first information includes information on a resource location distribution method based on a subband, the information on a resource location distribution method based on a subband includes second bitmap information, M bits of information, and S pieces of first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1. The length of the second bitmap information satisfies the following manner: the length of the second bitmap information is L bits, the length of the second bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein L is an integer greater than or equal to 1; wherein the length of the second bitmap information is less than the number of PRBs included in the subband size; The positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the subband for transmitting the SRS; wherein the second bitmap information corresponds from low to high to the frequency domain of the subband in the sounding reference signal resource from low to high; The second bit in the second bitmap information is used to indicate whether the terminal transmits the SRS at the frequency domain position in the subband corresponding to the position of the second bit, and the second bit is one bit in the second bitmap information.

43. The device according to claim 42, characterized in that The first information further includes: resource location distribution information based on the sub-band level.

44. The device according to claim 43, characterized in that The subband size of the subband satisfies at least one of the following conditions: the subband size of the subband is K physical resource blocks PRBs, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the SRS transmission bandwidth, and the subband size of the subband is the minimum unit of frequency hopping of the sounding reference signal; wherein the first parameter is used to indicate the frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

45. The device according to claim 43, characterized in that The subband size of the subband is configured by radio resource control RRC signaling.

46. The device according to claim 43, characterized in that The determining, according to the first information, the resource location distribution for transmitting the SRS, the processing unit is specifically configured to: The position distribution of time domain and / or frequency domain resources for transmitting the SRS within the sounding reference signal resources is determined according to the subband-level resource position distribution information.

47. The device according to claim 46, characterized in that The subband-level resource location distribution information includes: first bitmap information or X-bit information, where X is an integer greater than or equal to 2.

48. The device according to claim 47, characterized in that The length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

49. The device according to claim 48, characterized in that The domain in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols and a repetition factor.

50. The device according to claim 49, characterized in that The set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein, the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

51. The device according to any one of claims 47 to 50, characterized in that The position distribution of the bits in the first bitmap information corresponds to the position distribution of the time-frequency domain resources used to transmit the SRS.

52. The device according to any one of claims 47 to 50, characterized in that The first bit in the first bitmap information is used to indicate whether to transmit the SRS at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

53. The device according to claim 47, characterized in that In a case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are used as reserved bits; and / or, If Y is less than or equal to X, whether to transmit the SRS on the Y time-frequency domain resources is indicated by a bit in the X-bit information; and / or, If Y is greater than X, then whether the SRS is transmitted on X time-frequency domain resources among the Y time-frequency domain resources is indicated by the bits in the X-bit information, and whether the SRS is transmitted on the remaining time-frequency domain resources among the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

54. The device according to any one of claims 47 to 50, characterized in that The sub-band level-based resource location distribution information further includes time domain resource compression information, where the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

55. The device according to claim 54, characterized in that The compressing the time domain position distribution of the SRS transmission includes: The OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission is reduced.

56. The device according to claim 43, characterized in that The determining, according to the first information, the resource location distribution for transmitting the SRS, the processing unit is specifically configured to: The frequency domain position distribution for transmitting the SRS in the sub-band is determined according to the resource position distribution mode information within the sub-band.

57. The device according to claim 42, characterized in that All bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

58. The device according to claim 42, characterized in that N bits of the M-bit information are used to indicate the number P of frequency domain resources used to transmit the SRS in the subband, where N is an integer greater than or equal to 1, and P is the number of PRBs included in a subband size that is less than or equal to the subband size; The remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to a coding combination manner.

59. The device according to claim 42, characterized in that The value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

60. The device according to claim 59, characterized in that The first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs included in the subband size of the subband.

61. The device according to claim 60, characterized in that The first indication domain information includes R bit information, and all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

62. The device according to claim 56, characterized in that The determining, based on the information about the resource location distribution mode within the sub-band, of the frequency domain location distribution for transmitting the SRS within the sub-band, the processing unit is specifically configured to: The frequency domain position distribution for transmitting the SRS in the sub-band is determined by reusing or using the same transmission mode based on the resource position distribution information in the sub-band.

63. The device according to any one of claims 42 to 50, characterized in that The first information is transmitted by at least one of RRC signaling, a control unit MAC CE of a media access control layer, and downlink control information DCI.

64. A sounding reference signal configuration device, characterized in that: Applied to a network device, the apparatus includes a processing unit and a communication unit, wherein the processing unit is configured to: Sending first information to the terminal through the communication unit, where the first information is used to indicate resource configuration of a sounding reference signal (SRS); The first information includes information on a resource location distribution method based on a subband, the information on a resource location distribution method based on a subband includes second bitmap information, M bits of information, and S pieces of first indication field information, where M is an integer greater than or equal to 1, and S is an integer greater than or equal to 1. The length of the second bitmap information satisfies the following manner: the length of the second bitmap information is L bits, the length of the second bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein L is an integer greater than or equal to 1; wherein the length of the second bitmap information is less than the number of PRBs included in the subband size; The positions of the bits in the second bitmap information correspond to the frequency domain position distribution in the subband for transmitting the SRS; wherein the second bitmap information corresponds from low to high to the frequency domain of the subband in the sounding reference signal resource from low to high; The second bit in the second bitmap information is used to indicate whether the terminal transmits the SRS at the frequency domain position in the subband corresponding to the position of the second bit, and the second bit is one bit in the second bitmap information.

65. The device according to claim 64, characterized in that The first information further includes: resource location distribution information based on the sub-band level.

66. The device according to claim 65, characterized in that The subband size of the subband satisfies at least one of the following conditions: the subband size of the subband is K physical resource blocks PRBs, the subband size of the subband is determined by a first parameter, the subband size of the subband has a mapping relationship with the SRS transmission bandwidth, and the subband size of the subband is the minimum unit of frequency hopping of the sounding reference signal; wherein the first parameter is used to indicate the frequency hopping information of the sounding reference signal, and K is an integer greater than or equal to 1.

67. The device according to claim 64, characterized in that The subband size of the subband is configured by radio resource control RRC signaling.

68. The device according to claim 65, characterized in that The subband-level resource location distribution information includes: first bitmap information or X-bit information, where X is an integer greater than or equal to 2.

69. The device according to claim 68, characterized in that The length of the first bit map information satisfies at least one of the following methods: the length of the first bit map information is determined by a second parameter, and the length of the first bit map information is determined by the number of subbands of the subband configured in the sounding reference signal resource; wherein the second parameter is used to indicate resource mapping information.

70. The device according to claim 69, characterized in that The domain in the second parameter includes at least one of the following: the number of consecutive orthogonal frequency division multiplexing (OFDM) symbols and a repetition factor.

71. The device according to claim 70, characterized in that The set of consecutive OFDM symbol numbers is determined by a first symbol number set and a second symbol number set; the set of repetition factors is determined by a first repetition factor set and a second repetition factor set; wherein, the set of consecutive OFDM symbol numbers is used to represent a set consisting of the consecutive OFDM symbol numbers, and the set of repetition factors is used to represent a set consisting of the repetition factors.

72. The device according to any one of claims 68 to 71, characterized in that The position distribution of the bits in the first bitmap information corresponds to the time-frequency domain position distribution used to transmit the SRS.

73. The device according to any one of claims 68 to 71, characterized in that The first bit in the first bitmap information is used to indicate whether to transmit the SRS at a time-frequency domain position corresponding to the position of the first bit. The first bit is a bit in the first bitmap information.

74. The device according to claim 68, characterized in that In a case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and Y is greater than or equal to 1, if Y is 1, the X bits are used as reserved bits; and / or, If Y is less than or equal to X, whether to transmit the SRS on the Y time-frequency domain resources is indicated by a bit in the X-bit information; and / or, If Y is greater than X, then whether the SRS is transmitted on X time-frequency domain resources among the Y time-frequency domain resources is indicated by the bits in the X-bit information, and whether the SRS is transmitted on the remaining time-frequency domain resources among the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

75. The device according to any one of claims 68 to 71, characterized in that The sub-band level-based resource location distribution information further includes time domain resource compression information, where the time domain resource compression information is used to compress the time domain location distribution of the SRS transmission.

76. The device according to claim 75, characterized in that The compressing the time domain position distribution of the SRS frequency hopping includes: The OFDM symbol interval between the time domain positions of two consecutive SRS transmissions in the time-frequency domain resources of the SRS transmission is reduced.

77. The device according to claim 64, characterized in that All bits in the M-bit information indicate the frequency domain position distribution for transmitting the SRS in the sub-band according to a coding combination manner.

78. The device according to claim 64, characterized in that N bits of the M-bit information are used to indicate the number P of frequency domain resources used to transmit the SRS in the subband, where N is an integer greater than or equal to 1, and P is the number of PRBs included in a subband size that is less than or equal to the subband size; The remaining bits in the M-bit information except the N bits indicate the position distribution of the P frequency domain resources in the subband according to a coding combination manner.

79. The device according to claim 64, characterized in that The value of S is determined by the number of modes of the number of frequency domain resources used to transmit the SRS in the sub-band.

80. The device according to claim 79, characterized in that The first indication domain information is used to indicate the number Q of frequency domain resources used to transmit the SRS in the subband, where Q is less than or equal to the number of PRBs included in the subband size of the subband.

81. The device according to claim 80, characterized in that The first indication domain information includes R bit information, and all bits in the R bit information indicate the position distribution of the Q frequency domain resources in the subband according to a coding combination method, and R is an integer greater than or equal to 1.

82. The device according to any one of claims 68 to 71, characterized in that The first information is transmitted by at least one of RRC signaling, a control unit MAC CE of a media access control layer, and downlink control information DCI.

83. A terminal, characterized in that The method comprises a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 1 to 22.

84. A network device, characterized in that The method comprises a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for executing the steps in the method according to any one of claims 23 to 41.

85. A chip, characterized in that It includes a processor, which is used to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 41.

86. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program is operable to cause a computer to perform the method according to any one of claims 1 to 41.

Images