WO2022067802A1

WO2022067802A1 - Detection reference signal configuration method and apparatus, terminal, and network device

Info

Publication number: WO2022067802A1
Application number: PCT/CN2020/119727
Authority: WO
Inventors: 田杰娇; 史志华; 陈文洪; 黄莹沛; 方昀
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2022-04-07
Also published as: CN116097600A

Abstract

Disclosed by embodiments of the present application are a detection reference signal configuration method and apparatus, terminal, and network device, said method comprising: a terminal obtaining first information from a network device, the first information being used for indicating a resource allocation for a sounding reference signal; according to the first information, the terminal determining the distribution of resource locations used for transmitting the sounding reference signal. Hence, in the embodiments of the present application, the first information is sent from the network device to the terminal, thus facilitating a network device to configure the distribution of resource locations used for transmitting a sounding reference signal (SRS). In addition, the terminal determines, according to the first information, the distribution of resource locations used for transmitting the SRS, then transmits the SRS by means of said resource location distribution. One need only transmit an SRS over all or part of a frequency-band resource by means of said resource location distribution to enable the transmission of all or part of the SRS, and improve the efficiency of frequency-band resource utilization, power density, and SRS multiplexing capability.

Description

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

technical field

The present application relates to the field of communication technologies, and in particular, to a sounding reference signal configuration method and apparatus, a terminal, and a network device.

Background technique

The 3rd generation partnership project (3GPP) is devoted to the formulation of communication protocol standards. Among them, the existing communication protocol standards have related records for the sounding reference signal (sounding reference signal, SRS) in the communication process.

Currently, the frequency-hopping spread spectrum (FHSS) supported by the new radio (NR) system needs to transmit the SRS over the entire frequency band resource. At the same time, in an actual communication network, since some of the frequency band resources in the entire frequency band will be severely interfered by other wireless systems (such as video backhaul systems), data scheduling cannot be performed on this part of the frequency band resources, so there is no need to perform data scheduling in this part of the frequency band. The SRS is transmitted in the frequency domain. Alternatively, in the case of high correlation in the frequency domain, since the channel has high correlation in the entire frequency band resource, it is only necessary to transmit the SRS on part of the frequency band resource of the entire frequency band resource. It can be seen that on the basis of the existing communication protocol standards, further research on the frequency band resources used for transmitting SRS is required to improve the utilization efficiency of the frequency band resources and the multiplexing capability of the SRS.

SUMMARY OF THE INVENTION

Embodiments of the present application provide a sounding reference signal configuration method and apparatus, a terminal, and a network device, so as to realize the configuration of resource location distribution for transmitting sounding reference signals, thereby improving the utilization efficiency of frequency band resources and improving the complexity of SRS. use ability.

In a first aspect, an embodiment of the present application provides a sounding reference signal configuration method, including:

The terminal acquires first information from the network device, where the first information is used to indicate the resource configuration of the sounding reference signal SRS;

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

In a second aspect, an embodiment of the present application provides a sounding reference signal configuration method, including:

The first information sent by the network device to the terminal, where the first information is used to indicate the resource configuration of the sounding reference signal SRS.

In a third aspect, an embodiment of the present application provides an apparatus for configuring a sounding reference signal, which is applied to a terminal. The apparatus includes a processing unit and a communication unit, where the processing unit is configured to:

Acquire first information from the network device through the communication unit, where the first information is used to indicate the resource configuration of the sounding reference signal SRS;

Resource location distribution for transmitting the SRS is determined according to the first information.

In a fourth aspect, an embodiment of the present application provides an apparatus for configuring a sounding reference signal, which is applied to a network device. The apparatus includes a processing unit and a communication unit, where the processing unit is configured to:

Send first information to the terminal through the communication unit, where the first information is used to indicate the resource configuration of the sounding reference signal SRS.

In a fifth aspect, an embodiment of the present application provides a terminal, including 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 by the The processor executes the program, and the program includes instructions for executing steps in any method in the first aspect of the embodiments of the present application.

In a sixth aspect, an embodiment of the present application provides a network device, including a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and are configured by the The program is executed by the processor, and the program includes instructions for executing steps in any method in the second aspect of the embodiments of the present application.

In a seventh aspect, an embodiment of the present application provides a chip, including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the first aspect or the second aspect of the embodiment of the present application Some or all of the steps described in any method.

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 the Some or all of the steps described in any method of the first aspect or the second aspect of the embodiments of the present application. The computer program may be a software installation package.

It can be seen that, in the 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 according to the first information. Since the first information is sent by the network device to the terminal, it is beneficial to realize the configuration of the resource location distribution for transmitting the SRS by the network device. In addition, the terminal determines the resource location distribution for transmitting the SRS according to the first information, and then transmits the SRS through the resource location distribution. Because the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, all or part of the SRS can be transmitted, and the utilization efficiency of the frequency band resources is improved. At the same time, the transmission part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources that are not used for the transmission of the SRS can be allocated to other terminals to improve the multiplexing capability of the SRS.

Description of drawings

The accompanying drawings required to be used in the description of the embodiments or the prior art will be briefly introduced below.

FIG. 1 is a schematic structural diagram of a wireless communication system provided by an embodiment of the present application;

FIG. 2 is a schematic flowchart of a sounding reference signal configuration method provided by an embodiment of the present application;

3 is a schematic structural diagram of a subband size of 4 PRBs provided by an embodiment of the present application;

4 is a schematic structural diagram of a time domain location distribution of sounding reference signal frequency hopping provided by an embodiment of the present application;

5 is a schematic structural diagram of determining, according to first bit bitmap information, a time-domain location distribution for transmitting a sounding reference signal in a sounding reference signal resource according to an embodiment of the present application;

6 is a schematic structural diagram of time-domain location distribution of a compressed sounding reference signal frequency hopping provided by an embodiment of the present application;

7 is a schematic structural diagram of frequency domain location distribution of sounding reference signal frequency hopping or transmission provided by an embodiment of the present application;

8 is a schematic structural diagram of determining, according to second bitmap information, a frequency domain location distribution used for transmitting a sounding reference signal in a sounding reference signal resource according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a frequency domain location distribution for transmitting a sounding reference signal in a sounding reference signal resource provided by an embodiment of the present application;

10 is a schematic structural diagram of a frequency domain position distribution in a subband provided by an embodiment of the present application;

FIG. 11 is a schematic structural diagram of determining, according to second bitmap information, a frequency domain location distribution for transmitting a sounding reference signal in a subband according to an embodiment of the present application.

12 is a schematic structural diagram of processing in a reused manner based on resource location distribution information in a subband provided by an embodiment of the present application;

13 is a schematic structural diagram of processing in the same transmission mode based on resource location distribution mode information in a subband provided by an embodiment of the present application;

14 is a block diagram of functional units of a sounding reference signal configuration apparatus provided by an embodiment of the present application;

15 is a block diagram of functional units of another sounding reference signal configuration apparatus provided by an embodiment of the present application;

FIG. 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application;

FIG. 17 is a schematic structural diagram of a network device provided by an embodiment of the present application.

Detailed ways

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

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 (Code Division Multiple Access, CDMA) system, wideband CDMA Access (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced Long Term Evolution, LTE-A) system, New Radio (NR) system, evolution system of NR system, LTE (LTE-based Access to Unlicensed Spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based Access on unlicensed spectrum) to Unlicensed Spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Security Wireless Fidelity (WiFi), 5th-Generation (5G) system or other communication systems, etc.

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 devices such as device to device (D2D) communication, machine to machine (M2M) communication, machine Type communication (machine type communication, MTC), inter-vehicle (vehicle to vehicle, V2V) communication or vehicle networking (vehicle to everything, V2X) communication, etc., so the technical solutions of the embodiments of the present application can also be applied to the above-mentioned wireless communication system.

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

Optionally, the wireless communication system in this embodiment of the present application may be applied to an unlicensed spectrum. Among them, unlicensed spectrum can also be considered as shared spectrum. Alternatively, the wireless communication system in this embodiment may also be applied to licensed spectrum. Among them, licensed spectrum can also be considered as non-shared spectrum.

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

Specifically, the terminal may be a user equipment (user equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, an intelligent terminal, a wireless communication device, User Agent or 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 wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in next-generation communication systems such as NR networks or future evolution of public land mobile communication networks network, PLMN), etc., which are not specifically limited.

Further, the terminal can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle; can be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).

Further, the terminal can be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (virtual reality, VR) terminal device, an augmented reality (augmented reality, AR) terminal device, industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation security (transportation) wireless terminal equipment in safety), wireless terminal equipment in smart city (smart city) or wireless terminal equipment in smart home (smart home), etc.

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 (evolutional node B, 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 (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, and the like.

It should be noted that, in some network deployments, the gNB may include a centralized unit (centralized unit, CU) and a distributed unit (distributed unit, DU). The gNB may also include an active antenna unit (AAU). The CU implements some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, and 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, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer. In addition, the AAU implements some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, therefore, under this architecture, the higher-layer signaling (such as the RRC layer signaling) can be considered to be sent by the DU. , or sent by DU+AAU. It can be understood that the network device may include one or more devices of a CU node, a DU node, and an AAU node. In addition, the CU may be divided into network devices in an access network (radio access network, RAN), and the CU may also be divided into network devices in a core network (core network, CN), which is not specifically limited.

Further, the network device may have mobile characteristics, for example, the network device may be a mobile device. Optionally, 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. Optionally, the network device may also be a base station set in a location such as land or water.

Further, the network device can provide services for the cell, and the terminals in the cell can communicate with the network device through transmission resources (eg, spectrum resources). The cells may include small cells (small cells), urban cells (metro cells), micro cells (micro cells), pico cells (pico cells), femto cells (femto cells), and the like.

Exemplarily, the wireless communication system applied in the embodiment of the present application is as shown in FIG. 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 performs communication with the terminal 120 . At the same time, the network device 110 may provide communication coverage for a specific geographic area, and may communicate with the terminals 120 located within the coverage area.

Optionally, the wireless communication system 10 may further include multiple network devices, and the coverage of each network device may include other numbers of terminals, which are not specifically limited herein.

Optionally, the wireless communication system 10 may further include other network entities such as a network controller, a mobility management entity, etc., which are not specifically limited herein.

Optionally, the communication between the network device and the terminal in the wireless communication system 10 and the communication between the terminal and the terminal may be wireless communication or wired communication, which is not specifically limited herein.

Before the sounding reference signal configuration method provided in this embodiment is introduced in detail, the related communication technologies involved in this embodiment are introduced.

1. Sounding reference signal (SRS)

SRS is an important reference signal in 5G/NR system and is widely used in various functions in NR system, such as:

(1) The terminal detection process used for the acquisition of downlink channel state information (CSI);

(2) Used for uplink beam management;

(3) Used for positioning function;

(4) Cooperate with codebook-based uplink transmission, such as frequency domain scheduling and determination of Rank/precoding matrix indicator (PMI)/modulation coding scheme (MCS);

(5) Cooperate with uplink transmission based on non-codebook (non-codebook based), such as frequency domain scheduling and determination of SRS resource indicator (sounding reference signal resource indicator, SRI)/MCS.

NR SRS not only introduces the concept of SRS resource (SRS resource), but also introduces the concept of SRS resource set (SRS resource set). Wherein, the network device can configure one or more for a terminal, and each SRS Resource set can configure one or more SRS resources.

In addition, SRS supports three different transmission modes: periodic (periodic), semi-persistent (semi-persistent) and aperiodic (aperiodic). details as follows:

(1) Periodic SRS and semi-persistent SRS

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

Semi-persistent SRS also refers to periodically transmitted SRS, and its period and time slot offset are configured by RRC signaling, but its activation signaling and deactivation signaling are controlled by the media access control layer (media access control control unit). element, MAC CE) is carried. The terminal starts to periodically transmit the SRS after receiving the activation signaling until the deactivation signaling is received. At the same time, the space-related information of the semi-persistent SRS is carried together by the MAC CE that activates the SRS.

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:

in,

represents the number of time slots contained in each radio frame, n _f represents the radio frame number,

represents the slot number, T _offset represents the slot offset configured by RRC signaling, and T _SRS represents the period configured by RRC signaling.

(2) Aperiodic SRS

The aperiodic SRS refers to an SRS that is transmitted aperiodically. Among them, the aperiodic SRS is a concept newly introduced 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 for triggering aperiodic SRS transmission can be used for scheduling the physical uplink shared channel (PUSCH) or the physical downlink shared channel (PDSCH) in the UE-specific search space. The DCI bearer can also be carried by the DCI format 2_3 (DCI format 2_3) in the common 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 the TPC command of SRS on a group of UEs or a group of carriers at the same time. Meanwhile, the DCI carries a 2-bit SRS-request to trigger aperiodic transmission of the SRS.

After receiving the aperiodic SRS trigger signaling (such as DCI), the terminal 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 higher layer signaling (eg, RRC signaling). At the same time, the network device instructs the terminal through high-layer signaling in advance the configuration parameters of each SRS resource set, including time-frequency resources, sequence parameters, power control parameters, and the like. In addition, for each SRS resource in the triggered SRS resource set, the terminal can also determine the transmission beam used for transmitting the SRS on the SRS resource through the spatial correlation information of the SRS resource, and the spatial correlation information is configured to each SRS resource through the RRC information. SRS resources.

It should be noted that the frequency domain configuration of the SRS is determined by the symbol C _SRS and the symbol B _SRS shown in Table 1, and m _SRS,b represents the number of physical resource blocks (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} It is given by the field b-SRS contained in the high-level parameter freqHopping.

The NR system supports SRS frequency hopping. If b _hop <B _SRS is satisfied (where b _hop is a parameter configured by RRC signaling), the terminal sends the SRS signal in the form of frequency hopping. Wherein, m _SRS,0 represents the total bandwidth of SRS frequency hopping, and m _SRS,b represents 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:

Among them, N _b is determined by a preset table, n _RRC is a parameter configured by RRC signaling, and the operator

Representing rounded down, F _b (n _SRS ) is determined by:

Among them, no matter what the value of N _b is,

n _SRS represents the number of SRS frequency hopping. For aperiodic SRS, the number of SRS frequency hopping is determined by the following formula:

in,

Indicates the number of consecutive OFDM symbols (configured by RRC signaling), R is a 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.

Table 1

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

in,

represents the slot number, T _offset represents the slot offset configured by RRC signaling, and T _SRS represents the period configured by RRC signaling. in,

Determined by Table 2.

Among them, in Table 1, Δf represents the subcarrier spacing,

represents the number of OFDM symbols contained in each slot,

Indicates the number of time slots contained in each subframe, and T _slot represents the length of the time slot.

Currently, the frequency-hopping spread spectrum (FHSS) supported by the new radio (NR) system needs to transmit the SRS over the entire frequency band resource. At the same time, in an actual communication network, since some of the frequency band resources in the entire frequency band will be severely interfered by other wireless systems (such as video backhaul systems), data scheduling cannot be performed on this part of the frequency band resources, so there is no need to perform data scheduling in this part of the frequency band. The SRS is transmitted in the frequency domain. Or, in the case of high correlation in the frequency domain, since the channel has a high correlation in the whole frequency band resource, it is only necessary to transmit the SRS on part of the frequency band resource of the whole frequency band resource. It can be seen that on the basis of the existing communication protocol standards, further research on the frequency band resources used for transmitting SRS is required to improve the utilization efficiency of the frequency band resources and the multiplexing capability of the SRS.

Table 2

With reference to the above description, an embodiment of the present application provides a schematic flowchart of a sounding reference signal configuration method, please refer to FIG. 2 . The method includes:

S210. The network device sends the first information to the terminal.

The first information may be used to indicate the resource configuration of the sounding reference signal.

Specifically, the network device may send the first information for the sounding reference signal resource to the terminal.

It should be noted that the existing communication protocol standards make relevant provisions on the sounding reference signal resources configured by the network device to the terminal. In this case, the terminal needs to transmit several SRSs on the configured sounding reference signal resources. However, in this embodiment of the present application, the first information for the sounding reference signal resources is sent to the terminal through the network device; then, the terminal determines, according to the first information, the resource location distribution for transmitting the SRS in the sounding reference signal resources, and then uses The resource locations are distributed to transmit SRS. Compared with several SRS transmissions specified in the existing communication protocol standard, the embodiment of the present application only needs to transmit SRS on all or part of the frequency band resources of the sounding reference signal resource through the resource location distribution, that is, transmit all or part of the SRS. At the same time, the transmission part of SRS has two main benefits: the first is to improve the power density, that is, the transmission part of the SRS can obtain additional power gain; the second is to improve the multiplexing ability of the SRS, that is, there is no The frequency band resources used to transmit the SRS can be allocated to other terminals.

The following embodiments of the present application will specifically introduce sounding reference signal resources.

Specifically, the sounding reference signal resource (SRS resource) in the embodiment of the present application is the sounding reference signal resource in the sounding reference signal resource set (SRS resource set). Meanwhile, the sounding reference signal resource set is configured by the network device through RRC signaling. It should be noted that the network device may 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.

Further, the sounding reference signal resource set is configured by the high layer parameter SRS-ResourceSet, and the sounding reference signal resource is configured by the high layer parameter SRS-Resource. It should be noted that the information element (information element, IE) in the RRC signaling includes the SRS-Config information element, and the SRS-Config information element is used to configure the transmission of the sounding reference signal. Meanwhile, the SRS-Config information element includes the high-level parameter SRS-ResourceSet and the high-level parameter SRS-Resource.

Further, the high-level parameter SRS-ResourceSet contains a usage parameter, and usage can be configured as one of the sets {beamManagement, codebook, nonCodebook, antennaSwitching}.

Further, the high-level parameter SRS-Resource includes a frequency hopping (freqHopping) parameter, and freqHopping includes the following three fields: c-SRS, b-SRS, and b-hop. Among them, 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), b-hop can be configured as a set ( 0,...,3) to take a value.

Further, the high-layer 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.

Further, the second parameter may be a resource mapping parameter (resourceMapping).

Further, nrofSymbols may be configured as a value in a set of the number of consecutive OFDM symbols, and the set of the number of consecutive OFDM symbols may be determined by the first set of the number of symbols and the second set of the number of symbols. Meanwhile, the repetitionFactor can be configured to take a value in a set of repetition factors, and the set of repetition factors can be determined by the first set of repetition factors and the second set of repetition factors.

Further, the first number set of symbols may be {n1,n2,n4}, and the second set of numbers of symbols may be {n6,n8,n12,n14}. Meanwhile, the first repetition factor set may be {n1, n2, n4}, and the second repetition factor set may be {n6, n8, n12, n14}.

Further, the set of the number of consecutive OFDM symbols 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}. Meanwhile, 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}.

Specifically, the first information is transmitted by at least one of radio resource control RRC signaling, a control element MAC CE of the medium access control layer, and downlink control information DCI. It can be understood that the network device may transmit or indicate the first information to the terminal through at least one of RRC signaling, MAC CE, and DCI.

S220. The terminal acquires the first information from the network device.

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

It should be noted that, the resource location distribution information based on the subband level can be used to determine the location distribution of the time-frequency domain resources used for transmitting the sounding reference signal on the sounding reference signal resources; based on the resource location distribution information in the subband It can be used to determine the frequency domain location distribution for transmitting the sounding reference signal in the subband of the sounding reference signal resource.

The following embodiments of the present application will specifically introduce a subband.

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

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

Specifically, K is a value in the set {4, 8, 12, 16}. Further, the sub-band size of the sub-band is one value in the set of {4, 8, 12, 16} PRBs. It can be understood that the subband size can be configured as one value in the set of {4, 8, 12, 16} PRBs. For example, FIG. 3 illustrates a schematic structural diagram of a subband size of 4 PRBs.

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 (freq Hopping). Wherein, at least one field in the high-level parameter freqHopping includes: c-SRS, b-SRS, b-hop. Meanwhile, C _SRS ∈ {0,1,...,63} is given by the domain c-SRS contained in the high-level parameter freqHopping, and B _SRS ∈ {0,1,2,3} is given by the domain contained in the high-level parameter freqHopping b-SRS given.

Specifically, the subband size of the subband has a mapping relationship with the sounding reference signal transmission bandwidth. For example, if the SRS transmission bandwidth is 64 PRBs, the subband size is 16PRBs; if the SRS transmission bandwidth is 32 PRBs, the subband size is 8 PRBs; if the SRS transmission bandwidth is 16PRBs, the subband size is 4PRBs, etc. , without any specific restrictions.

Specifically, the subband size of the subband is the minimum unit of sounding reference signal frequency hopping. It should be noted that the minimum unit of sounding reference signal frequency hopping may be expressed as m _SRS,b ; wherein, m _SRS,b may be determined by Table 1.

Specifically, if the subband size (subband size) of the subband simultaneously satisfies two, three or four of the foregoing at least one manner, the subband size of the subband is the smallest value. It can be understood that, if the network device configures the subband size in the above two, three or four ways at the same time, the configuration with the smallest subband size shall prevail.

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.

S230. The terminal determines, according to the first information, resource location distribution for transmitting sounding reference signals.

In a possible example, the terminal determines, according to the first information, the resource location distribution used for transmitting the sounding reference signal, which may include the following operations: Location distribution of time domain and/or frequency domain resources for transmitting sounding reference signals.

Since the first information may include subband level-based resource location distribution information and/or resource location distribution information based on subbands, and the time domain and/or frequency domain resources used for transmitting sounding reference signals may be divided into time Domain resources or different angles of frequency domain resources, therefore, the embodiments of the present application will be specifically introduced through the following embodiments. Among them, Embodiment 1 mainly analyzes the time domain position distribution method based on the subband level, Embodiment 2 mainly analyzes the frequency domain position distribution method based on the subband level, and Embodiment 3 mainly analyzes the frequency domain position distribution method based on the subband level, Embodiment 4 mainly analyzes the sub-band level and the time-frequency domain position distribution mode within the sub-band.

Example 1:

In a possible example, the terminal determines the first information on the location distribution of the time domain and/or frequency domain resources used for transmitting the sounding reference signal in the sounding reference signal resource according to the information on the resource location distribution based on the subband level, which may include The following operations are performed: the terminal determines, according to the resource location distribution manner information based on the subband level, the time domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource.

It should be noted that, in Embodiment 1 mainly analyzing the time domain position distribution mode based on the subband level, this embodiment mainly considers the time domain position of the SRS frequency hopping when the frequency hopping function is enabled. It can be seen from the above description that in a time slot of the sounding reference signal resource (SRS resource), the number of SRS frequency hopping n _SRS can be determined by the parameters l',

R.

n _f ,

Decisions such as T _offset or T _SRS , so n _SRS has various forms.

For example, FIG. 4 illustrates the time domain location distribution of SRS frequency hopping under 6 forms of n _SRS . Among them, the black box represents the time domain position where the terminal can transmit SRS, and in the frequency domain, two boxes represent 1 subband, and in the time domain, 1 box represents an OFDM symbol. when

When R=1, n _SRS =1, (a) of FIG. 4 illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping; when

When R=1, n _SRS =2, (b) of FIG. 4 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

When R=2, n _SRS =1, (c) of FIG. 4 illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping; when

When R=4 and n _SRS =1, (d) of FIG. 4 illustrates the time domain position of one SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping; when

When R=2, n _SRS =2, (e) of FIG. 4 illustrates the time domain position of 2 times of SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping; when

When R=1 and n _SRS =4, (f) of FIG. 4 illustrates the time domain position of 4 SRS frequency hopping, so the terminal can transmit SRS at the time domain position of SRS frequency hopping.

Specifically, the resource location distribution mode information based on the subband level may include: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2. It can be understood that, the terminal may determine, according to the first bit bitmap information or the X-bit information, the time domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource.

In the following, this embodiment will specifically introduce the information of the resource location distribution mode based on the subband level as the first bitmap (bitmap) information.

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

Further, the second parameter may be a high-level parameter resourceMapping. The fields in the resourceMapping include at least one of the following: the number of consecutive OFDM symbols nrofSymbols, and the repetition factor repetitionFactor.

Further, the length of the first bit bitmap information can be

in,

Indicates the number of consecutive OFDM symbols (configured by RRC signaling), and R is the repetition factor (configured by RRC signaling).

Specifically, the position distribution of the bits in the first bitmap information has a corresponding relationship with the position distribution of the time-frequency domain resources used for transmitting the sounding reference signal. It should be noted that the time-frequency domain resource used for transmitting the sounding reference signal can be understood as the OFDM symbol used for transmitting the sounding reference signal in the time domain, and the subband used for transmitting the sounding reference signal in the frequency domain.

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

Further, if the value of the first bit is 1, the terminal transmits the sounding 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 is in the first bit. The sounding reference signal is not transmitted at the time-frequency domain position corresponding to the position of the bit; or, if the value of the first bit is 1, the terminal does not transmit the sounding 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 the sounding reference signal at the time-frequency domain position corresponding to the position of the first bit.

For example, please refer to FIG. 5 . FIG. 5 provides a schematic structural diagram of determining, according to the first bitmap information, a time domain location distribution for transmitting a sounding reference signal in a sounding reference signal resource. Among them, the black box represents the time domain location where the terminal can transmit SRS, the slashed box and the white box represent the time domain location where the terminal cannot transmit SRS, and the two boxes in the frequency domain represent a sub Band, 1 box represents one OFDM symbol in the time domain. In (a) of FIG. 5 , the first bit map information is “1”, and the time domain position corresponding to the position of the bit “1” in the first bit map information is “the time domain of one SRS frequency hopping. Location". In (b) of FIG. 5 , the first bit map information is "01", and the time domain position corresponding to the position of the first bit "1" in the first bit map information is "1st SRS hop" The time domain position of the frequency", the time domain position corresponding to the position of the second bit "0" is "the time domain position of the second SRS frequency hopping". In (f) of FIG. 5 , the first bit map information is "1001", and the time domain position corresponding to the position of the first bit "1" in the first bit map information is "1st SRS hop" time domain position of the frequency", the time domain position corresponding to the position of the second bit "0" is "the time domain position of the second SRS frequency hopping", and the time domain position corresponding to the position of the third bit "0" The position 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". Meanwhile, (c), (d) and (e) of FIG. 5 can be understood in the same way.

It can be seen that the terminal can determine the time domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource according to the first bit map information. Therefore, it can simply and intuitively determine which time domain locations to send SRS and which ones to transmit SRS according to the time domain location distribution. The time domain location does not transmit SRS, thereby improving flexibility and scalability for SRS configuration.

In the following, this embodiment will specifically introduce that the resource location distribution mode information based on the subband level is X-bit information.

Specifically, in the case where Y time-frequency resources for transmitting the 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, the X bits of information are reserved. 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 the bits in the X-bit information; and/or, if Y is greater than X, divide the Whether the terminal transmits the sounding reference signal on the X time-frequency domain resources in the Y time-frequency domain resources is indicated by the bits in the X-bit information, whether the terminal transmits the sounding reference signal on the remaining time-frequency domain resources in the Y time-frequency domain resources. The sounding reference signal transmitted on the resource is indicated by reusing the bits in the X-bit information.

Specifically, if the value of the bit in the X-bit information is 1, the terminal transmits the sounding reference signal at the time domain position corresponding to the bit; if the value of the bit in the X-bit information is 0, the terminal is in this The sounding reference signal is not transmitted at the time domain position corresponding to the bit; or, if the value of the bit in the X bit information is 1, the terminal does not transmit the sounding reference signal at the time domain position corresponding to the bit; If the value of the bit in the information is 0, the terminal transmits the sounding reference signal at the time domain position corresponding to the bit.

For example, when X is 2, the information on the resource location distribution mode based on the subband level is 2-bit information. For (a), (c) and (d) of FIG. 4 , since there is only one SRS frequency hopping in one time slot, the 2-bit information is used as a reserved bit. For (b) and (e) of FIG. 4 , 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 times of SRS frequency hopping. For (f) of FIG. 4 , the bits in the 2-bit information are not only used to indicate whether the terminal transmits the SRS at the time domain position of the first 2 SRS hopping in the 4 SRS hopping, but also can be reused The bit in the 2-bit information indicates whether the terminal transmits the SRS at the time domain position of the last 2 SRS hopping in the 4 SRS hopping. For example, in the case where the time domain position configuration for the four SRS frequency hopping in (f) of FIG. 4 is “1010”, the third and fourth bits in “1010” are the first bits The reuse of the bit and the second bit is configurable.

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

In the following this embodiment, the sub-band level-based resource location distribution mode information also includes time-domain resource compression mode information in detail.

In a possible example, the resource location distribution method information based on the subband level further includes: time domain resource compression method information, and the time domain resource compression method information can be used to compress the time domain location distribution of sounding reference signal transmission.

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

For example, please refer to FIG. 6 . FIG. 6 is a schematic structural diagram of time-domain location distribution of a compressed sounding reference signal frequency hopping provided by an embodiment of the present application. Wherein, the black box represents the time domain position where the terminal can be used to transmit SRS, and the slashed box and the white box represent the time domain location where the terminal cannot be used to transmit SRS. After compressing the "time domain position of SRS frequency hopping" in (b) of Figure 6 forward by one OFDM symbol not used for SRS frequency hopping, the position distribution shown in (a) of Figure 6 is obtained, and the The "time domain position of SRS frequency hopping" in (b) of 6 obtains the position distribution shown in (c) of Figure 6 after compressing 2 OFDM symbols not used for SRS frequency hopping forward, thereby reducing two consecutive OFDM symbols. The OFDM symbol spacing between the time domain locations of sounding reference signal transmissions.

It can be seen that by configuring the time domain resource compression method information, it is beneficial to reduce the time interval for transmitting SRS, and more different resource location distributions can be obtained by the compression method, which is beneficial to improve the flexibility and scalability of SRS configuration.

Example 2:

In a possible example, the terminal determines the first information on the location distribution of the time domain and/or frequency domain resources used for transmitting the sounding reference signal in the sounding reference signal resource according to the information on the resource location distribution based on the subband level, which may include The following operations are performed: the terminal determines the frequency domain location distribution for transmitting the sounding reference signal in the sounding reference signal resource according to the resource location distribution manner information based on the subband level.

It should be noted that, in Embodiment 2 mainly analyzing the frequency domain location distribution mode based on the subband level, this embodiment may consider the frequency domain location of the SRS frequency hopping when the frequency hopping function is enabled, or consider not enabling the frequency hopping function. The frequency domain location of the SRS transmission. In addition, when analyzing the frequency domain position of SRS frequency hopping or transmission in this embodiment, it is necessary to know how many subbands are configured in the sounding reference signal resource for SRS frequency hopping or transmission. At the same time, as described in the above embodiments, when considering enabling the frequency hopping function, the n _SRS in this embodiment also has various forms.

For example, FIG. 7 illustrates four types of SRS frequency hopping or frequency domain resources for transmission. Among them, the black box represents the frequency domain position where the terminal can transmit SRS, and two boxes represent one subband in the frequency domain, and one box represents one OFDM symbol in the time domain. (a) of FIG. 7 illustrates one subband configured in the frequency domain of the sounding reference signal resource for SRS frequency hopping or transmission, so the terminal can transmit the SRS on the one subband. (b) of FIG. 7 illustrates two subbands configured in the frequency domain of the sounding reference signal resources for SRS frequency hopping or transmission, so the terminal can transmit SRS on the two subbands. (c) of FIG. 7 illustrates two subbands configured in the frequency domain of the sounding reference signal resources for SRS frequency hopping or transmission, so the terminal can transmit SRS on the two subbands. (d) of FIG. 7 illustrates four subbands configured in the frequency domain of the sounding reference signal resources for SRS frequency hopping or transmission, so the terminal can transmit SRS on the four subbands.

Specifically, the resource location distribution mode information based on the subband level may include: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2. It can be understood that, the terminal may determine, according to the first bit bitmap information or the X-bit information, the frequency domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource.

Consistent with the above description for the first bitmap information, the present embodiment further specifically introduces that the information on the resource location distribution mode based on the subband level is the first bitmap information.

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

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

Further, the length of the first bit bitmap information may be N _subband bits. Wherein, N _subband represents the number of subbands configured in the sounding reference signal resource for frequency hopping or transmission of the sounding reference signal.

Further, the first bit bitmap information from low to high has a corresponding relationship with the frequency domain of the sounding reference signal resources from low to high.

For example, please refer to FIG. 8 . FIG. 8 provides a schematic structural diagram of determining, according to the second bitmap information, the frequency domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource. Among them, the black box represents the frequency domain position that the terminal can use to transmit SRS, and the slashed box and the white box represent the frequency domain position that the terminal cannot use to transmit SRS, and the two boxes in the frequency domain represent a sub band, while in the time domain 1 box represents an OFDM symbol. In (a) of FIG. 8 , the first bit map information is "1", and the frequency domain position corresponding to the position of the bit "1" in the first bit map information is "in the frequency domain of the sounding reference signal resource" 1 subband configured on the domain for SRS transmission". In (c) of FIG. 8 , 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 "in the sounding reference signal resource" The first subband configured in the frequency domain of the SRS for transmitting SRS", the frequency domain position corresponding to the position of the second bit "0" is "the second subband configured in the frequency domain of the sounding reference signal resource. Subbands for the transmission of SRS". Meanwhile, (b) and (d) of FIG. 8 can be understood in the same way.

It can be seen that the terminal can determine the frequency domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource according to the first bit map information, so it can simply and intuitively determine which frequency domain locations send SRS and which ones according to the frequency domain location distribution. The SRS is not sent in the frequency domain location, thereby ensuring that the configuration of the SRS has better flexibility and scalability. In addition, Embodiment 2 can extend the SRS transmission in Embodiment 1 only when frequency hopping is supported to the case where both frequency hopping and no frequency hopping are supported.

With regard to the above-mentioned consistency of X-bit information, the following embodiments of the present application will specifically introduce the sub-band level-based resource location distribution manner information as X-bit information.

See Figure 9 for an example. Among them, the black box represents the frequency domain position that the terminal can use to transmit SRS, and the slashed box and the white box represent the frequency domain position that the terminal cannot use to transmit SRS, and the two boxes in the frequency domain represent a sub band, while in the time domain 1 box represents an OFDM symbol. When X is 2, the resource location distribution mode information based on the subband level is 2-bit information. In (a) of FIG. 9 , 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. For (d) of FIG. 9 , in the case where 4 subbands for sounding reference signal frequency hopping or transmission are configured in the sounding reference signal resource, the bit division in the 2-bit information is used to indicate whether the terminal is in 4 In addition to transmitting the SRS on the first two subbands in the subbands, the terminal may also indicate whether the terminal transmits the SRS on other subbands in the four subbands by reusing the bits in the 2-bit information. At the same time, the same can be seen in (b) and (c) of FIG. 9 .

It can be seen that the terminal can determine the frequency domain location distribution used for transmitting the sounding reference signal in the sounding reference signal resource according to the X-bit information, so it can simply and intuitively determine which frequency domain locations send SRS and which frequency domain locations according to the frequency domain location distribution. SRS is not sent, thereby improving flexibility and scalability for SRS configuration. In addition, while ensuring flexibility, the complexity of the scheduling process on the network device side can be better controlled.

The following embodiments of the present application will specifically introduce the sub-band level-based resource location distribution mode information also including time-domain resource compression mode information.

In a possible example, the resource location distribution method information based on the subband level further includes: time domain resource compression method information, and the time domain resource compression method information can be used to compress the time domain location distribution of sounding reference signal frequency hopping.

It should be noted that, the time-domain resource compression method information in this embodiment is the same as that in the foregoing Embodiment 1, and details are not described herein again.

Example 3:

In a possible example, the terminal determines, according to the first information, the resource location distribution used for transmitting the sounding reference signal, which may include the following operations: the terminal determines, according to the information on the resource location distribution in the subband, the resource location distribution used for transmitting the sounding reference signal in the subband. The frequency domain location distribution of the reference signal.

It should be noted that Embodiment 3 mainly analyzes the frequency domain position distribution in the subband of the sounding reference signal resources, and transmits the sounding reference signal according to the frequency domain position distribution in the subband. The frequency domain resources in the subband may be determined by the subband size of the subband.

For example, please refer to FIG. 10 , when the sub-band size of the sub-band is 4 PRBs, FIG. 10 illustrates 15 forms of frequency domain position distribution in the sub-band. Wherein, the black box represents the frequency domain location where the terminal in the subband can be used to transmit SRS, and the white box represents the frequency domain location where the terminal in the subband cannot be used to transmit the SRS.

Specifically, the information based on the resource location distribution in the subband may include at least one of the following: second bitmap information, M-bit information, and S pieces of first indication field information, where M is an integer greater than or equal to 1, and the S is an integer greater than or equal to 1. It can be understood that, the terminal may determine the frequency domain position distribution for transmitting the sounding reference signal in the subband according to the second bit map information, the M bits of information or the S pieces of first indication domain information.

In the following, this embodiment will specifically introduce the second bitmap information based on the resource location distribution mode information in the subband.

Specifically, the length of the second bitmap information satisfies at least one of the following manners: the length of the second bitmap information is L bits, and the length of the second bitmap information is the number of PRBs included in the subband size of the subband Decide. It should be noted that the length of the configured second bitmap information may be smaller than or equal to the number of PRBs included in the subband size, or may be greater than the number of PRBs included in the subband size. For example, the length of the second bitmap information is 4 bits, and the number of PRBs included in the subband size is 8.

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

Further, K is a value in a set of {4, 8, 12, 16} bits. It can be understood that, the length of the bitmap information of the second bit may be a value from a set of {4, 8, 12, 16} bits. Further, the length of the second bitmap information can be

in,

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

Specifically, the positions of the bits in the second bitmap information have a corresponding relationship with the frequency domain position distribution used for transmitting the sounding reference signal in the subband. It should be noted that the frequency domain position used for transmitting the sounding reference signal can be understood as the position of the PRB used for transmitting the sounding reference signal in the subband.

Further, the second bit bitmap information from low to high has a corresponding relationship with the frequency domain of the subbands in the sounding reference signal resource from low to high.

Specifically, the second bit in the second bit map information is used to indicate whether the terminal transmits the sounding reference signal at the frequency domain position in the subband corresponding to the position of the second bit, The second bit is a bit in the second bitmap information.

Further, if the value of the second bit is 1, the terminal transmits the sounding reference signal at the frequency domain position in the subband corresponding to the position of the second bit; if the value of the second bit is 0, the terminal is in the frequency domain position. The sounding reference signal is not transmitted in the frequency domain position in the subband corresponding to the second bit; or, if the value of the second bit is 1, the terminal is in 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 sounding reference signal at the frequency domain position in the subband corresponding to the second bit.

For example, please refer to FIG. 11 . FIG. 11 provides a schematic structural diagram of determining, according to the second bitmap information, the frequency domain location distribution used for transmitting the sounding reference signal in the subband. Wherein, the black box represents the frequency domain position where the terminal can transmit SRS, and the slashed box and the white box represent the frequency domain location where the terminal cannot transmit SRS. In (a) of FIG. 11 , 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 in the subband" "PRB for transmitting SRS", the frequency domain position corresponding to the position of the second bit "0" is "the second PRB for transmitting SRS in the subband", and the position of the third bit "1" The corresponding frequency domain position is "the third PRB in the subband for transmitting SRS", and the corresponding frequency domain position of the fourth bit "0" is "the fourth PRB in the subband for transmitting SRS". ". Meanwhile, (b), (c), (d), (e) and (f) of FIG. 11 can be seen in the same way.

It can be seen that the terminal can determine the frequency domain position distribution for transmitting the sounding reference signal in the subband according to the second bit map information, so it can simply and intuitively determine which frequency domain positions to send SRS according to the frequency domain position distribution in the subband, And which frequency domain locations do not send SRS, so as to ensure that the configuration of the SRS has better flexibility and scalability.

The following embodiments of the present application will specifically introduce information based on the resource location distribution manner in the subband as M-bit information.

method one:

In a possible example, all bits in the M-bit information indicate the frequency domain position distribution of the sounding reference signal transmission in the subband according to the coding combination.

It should be noted that when there are only six forms shown in (f), (g), (l), (m), (n), and (o) in FIG. 10 in the subband, the M-bit information can be is 3bits information, all bits in the 3bits information indicate the 6 forms according to the coding combination, for example, "000" indicates (f) in Figure 10, "001" indicates (g) in Figure 10, "010" ” indicates (1) and the like in FIG. 10 , which is not particularly limited. When there are only 10 forms shown in (f) to (o) in FIG. 10 in the subband, the M-bit information can be 4bits information, and all bits in the 4bits information indicate the 10 types according to the coding combination. A form such as "0000" indicates (f) in FIG. 10 and the like. When there are only four forms shown in (b) to (e) in FIG. 10 in the subband, the M-bit information can be 2bits information, and all bits in the 2bits information indicate the four types according to the coding combination. The form, for example, "00" indicates (b) in FIG. 10, etc., which is not particularly limited.

Method two:

In a possible example, N bits in the M-bit information are used to indicate the number P of frequency domain resources used for transmitting sounding reference signals in the subband, N is an integer greater than or equal to 1, and P is less than or equal to the subband. The number of PRBs included in the subband size of the band; 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 the coding combination mode.

Specifically, the value of N may be determined by the number of patterns existing in the number of frequency domain resources used for transmitting sounding reference signals in the subband. It should be noted that, when it is known that there are only two modes (eg, P∈{1,2}) of the number of frequency domain resources used for transmitting SRS in the subband configured by the network device, the value of N can be 1. At this time, one bit can be used to indicate the two modes in the M-bit information. For example, the 1 bit is "0" to indicate that P is 1, and the 1 bit is "1" to indicate that P is 2. When it is known that there are only four patterns (eg, P∈{1,2,3,4}) in the number of frequency domain resources used for transmitting SRS in the subband configured by the network device, the value of N can be 2. At this time, the four modes can be indicated by 2 bits in the M-bit information. For example, the 2 bits are "00" to indicate that P is 1, the 1 bit is "01" to indicate that P is 2, etc., which are not specifically limited.

Specifically, the value of N may be determined by the number of PRBs included in the subband size of the subband. It should be noted that, when the number of PRBs included in the subband size of the subband is 4, the value of N may be 3. At this time, in the M-bit information, 3 bits may be used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband according to the coding combination. For example, the 3 bits are "000" to indicate that P is 0, the 3 bits are "001" to indicate that P is 1, the 3 bits are "100" to indicate that P is 4, etc. No specific restrictions are imposed. When the number of PRBs included in the subband size of the subband is 8, the value of N may be 4. At this time, in the M-bit information, 4 bits may be used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband according to the coding combination. For example, the 4 bits are "0000" to indicate that P is 0, the 3 bits are "1000" to indicate that P is 8, etc., which are not specifically limited.

Example 1: When there are only 6 forms shown in (f), (g), (l), (m), (n), (o) in Figure 10 in the subband, and the M-bit information is 3bits information When it is known that there are only two modes (ie, P∈{1,2}) of the number of frequency domain resources used for transmitting sounding reference signals in the subband configured by the network device, N takes the value of 1. At this time, the first bit in the 3 bits information is used to indicate that the number P of frequency domain resources used for transmitting the SRS in the subband is 1 or 2. Wherein, the first bit being "0" indicates that P is 2, and the first bit being "1" indicates that P is 1. Therefore, "00x" for the 3bits information indicates (f) in Figure 10, and "x" indicates reserved bits; "01x" for the 3bits information indicates (g) in Figure 10; "100" for the 3bits information indicates (l) in Figure 10; the 3bits information is "101" indicating (m) in Figure 10; the 3bits information is "110" indicating (n) in Figure 10; the 3bits information is "111" indicating Figure 10 (o) in .

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

It can be seen that the terminal can determine the frequency domain location distribution used for transmitting SRS in the sounding reference signal resource according to the K-bit information, so it can simply and intuitively determine which frequency domain locations send SRS and which frequency domain locations do not send SRS according to the frequency domain location distribution. SRS, thereby improving flexibility and scalability for SRS configuration. In addition, while ensuring flexibility, the complexity of the scheduling process on the network device side can be better controlled.

The following embodiments of the present application will specifically introduce the information based on the resource location distribution manner in the subband as S pieces of first indication domain information.

Specifically, the value of S may be determined by the number of patterns existing in the number of frequency domain resources used for transmitting sounding reference signals in the subband. The first indication field is used to indicate the quantity Q of frequency domain resources used for transmitting sounding reference signals in the subband, where Q is the number of PRBs less than or equal to the subband size included in the subband.

It should be noted that when it is known that there are only two modes (eg, Q∈{1,2}) in the number of frequency domain resources used for transmitting SRS in the subband configured by the network device, the value of S can be 2. At this time, the network device may use the two pieces of first indication field information to indicate the two modes respectively. For example, the first first indication field information is used to indicate that Q is 1, and the second first indication field information is used to indicate that Q is 2. When it is known that there are only four patterns (eg, Q∈{1, 2, 3, 4}) in the number of frequency domain resources used for transmitting SRS in the subband configured by the network device, the value of S can be 4. At this time, the network device may use the four pieces of first indication field information to indicate the four modes respectively. For example, the first first indication field information is used to indicate that Q is 1, the second first indication field information is used to indicate that Q is 2, the third first indication field information is used to indicate that Q is 3, and the fourth The first indication field information is used to indicate that Q is 4.

Further, 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 the coding combination, and R is an integer greater than or equal to 1.

Example 1: When there are only six forms shown in (f), (g), (l), (m), (n), and (o) in Figure 10 in the subband, due to the known network device configuration There are only two modes (ie, Q∈{1,2}) of the number of frequency domain resources used to transmit SRS in the subband of , so the value of S is 2. At this time, the network device may use the two pieces of first indication field information to indicate the two modes respectively. The first first indication field information is used to indicate that Q is 2, and the second first indication field information is used to indicate that Q is 1. Meanwhile, the first first indication field information includes 1bit information, and the second first indication field information includes 2bits information. Therefore, if the 1bit information is "1", it indicates (f) in Figure 10; if the 1bit information is "0", it indicates (g) in Figure 10; if the 2bits information is "00", it indicates (1) in Figure 10; When the 2bits information is “01”, it indicates (m) in FIG. 10; when the 2bits information is “10”, it indicates (n) in FIG. 10; and when the 2bits information is “11”, it indicates (o) in FIG.

Example 2: When there are only 8 forms shown in (f), (g), (h), (i), (l), (m), (n), (o) in Figure 10 in the subband When it is known that there are only two patterns (ie, Q∈{1,2}) of the number of frequency domain resources used for transmitting SRS in the subband configured by the network device, the value of S is 2. At this time, the network device may use the two pieces of first indication field information to indicate the two modes respectively. The first first indication field information is used to indicate that Q is 2, and the second first indication field information is used to indicate that Q is 1. Meanwhile, the first first indication field information includes 2 bits of information, and the second first indication field information includes 2 bits of information. Therefore, the 2bits information in the first first indication field information is "00" to indicate (f) in Figure 10; the 2bits information in the first first indication field information is "01" to indicate (g) in Figure 10 ); the 2bits information in the first first indication domain information is "10" indicating (h) in Figure 10; the 2bits information in the first first indication domain information is "11" indicating (i) in Figure 10 ); the 2bits information in the 2nd first indication domain information is "00" to indicate (1) in Figure 10; the 2bits information in the 2nd first indication domain information is "01" to indicate (m in Figure 10 ) ); the 2bits information in the second first indication domain information is "10" indicating (n) in Figure 10; the 2bits information in the second first indication domain information is "11" indicating (o in Figure 10 ) ).

It can be seen that the terminal can determine the frequency domain position distribution for transmitting SRS in the sounding reference signal resource according to the S pieces of first indication domain information. Therefore, it can simply and intuitively determine which frequency domain positions send SRS and which frequency domain positions according to the frequency domain position distribution. Domain locations do not transmit SRS, thereby improving flexibility and scalability for SRS configuration. In addition, while ensuring flexibility, it is beneficial to ensure good readability.

In a possible example, the terminal determines the frequency domain location distribution for transmitting the sounding reference signal in the subband according to the information based on the resource location distribution in the subband, including: the terminal uses the information based on the resource location distribution in the subband. The frequency domain location distribution for transmitting the sounding reference signal in the subband is determined in the manner of reuse or the same transmission mode.

It should be noted that, in Embodiment 3, how to determine the frequency domain location distribution for transmitting SRS in the subband based on the information on the resource location distribution in the subband is carried out in the case that the subband size of the subband is 4 PPRs. Specific instructions. Therefore, for the case where the subband size of the subband is 8, 12, 16 or more PRBs, the 4 PRBs used for SRS transmission in the 4 PRBs determined based on the resource location distribution information in the subband in Embodiment 3 can be used. The frequency domain location distribution is used as the basis to determine the location distribution when the subband size is 8, 12, 16 or more PRBs by adopting reuse or the same transmission mode based on the resource location distribution information in the subband.

Example 1, (a) in FIG. 12 is an example of the frequency domain location distribution for SRS transmission in the 4 PRBs determined based on the information on the resource location distribution in the subband in Embodiment 3. The resource location distribution method information of , determines the frequency domain location distribution used for SRS transmission in the 8 PRBs in a repetitive manner, as shown in (b) of FIG. 12 .

Example 2, (a) in FIG. 13 is an example of the frequency domain location distribution for SRS transmission in the 4 PRBs determined based on the resource location distribution information in the subband in Embodiment 3. The resource location distribution method information of , determines the frequency domain location distribution used for SRS transmission in 8 PRBs in the manner of the same transmission mode, as shown in (b) of FIG. 13 .

Example 4:

In a possible example, the terminal determines the resource location distribution for transmitting the sounding reference signal according to the first information, which may include the following operations: the terminal determines the resource location distribution based on the subband level and the resource location distribution based on the subband The mode information determines the time-frequency domain location distribution for transmitting the sounding reference signal within the sounding reference signal resource.

It should be noted that Embodiment 4 mainly analyzes the time when the SRS resource is used to transmit the SRS when the first information is the resource location distribution method information based on the subband level and the resource location distribution method information based on the subband. Frequency domain location distribution. Therefore, the specific technical solutions in Embodiment 4 are consistent with the technical solutions in the foregoing

Embodiments

1, 2 and 3, and details are not repeated here.

The technical solution of this embodiment is described in detail above mainly from the perspective of the method side. It can be understood that, in order to implement the above functions, the terminal and the network device include corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

In this embodiment, the terminal and the network device may be divided into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated units can be implemented in the form of hardware, and can also be implemented in the form of software program modules. It should be noted that the division of units in this embodiment is schematic, and is only a logical function division, and other division methods may be used in actual implementation.

In the case of using integrated units, FIG. 14 shows a block diagram of functional units of a sounding reference signal configuration apparatus. The sounding reference signal configuration apparatus 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 configured to support the terminal to perform the steps in FIG. 2 and/or other processes for the technical solutions described in this embodiment. The communication unit 1403 is used to support the communication between the terminal and the network device. The sounding reference signal configuration apparatus 1400 may further include a storage unit 1401 for storing program codes and data of the terminal.

The processing unit 1402 may 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 (application-specific integrated circuit) integrated circuit, ASIC), field programmable gate array (FPGA), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. The processing unit 1402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication unit 1403 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 1401 may 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 apparatus 1400 involved in this embodiment may be the terminal shown in FIG. 16 .

During specific implementation, the processing unit 1402 is configured to perform any step performed by the terminal in the above method embodiments, and when performing data transmission such as sending, the communication unit 1403 can be selectively invoked to complete corresponding operations. A detailed description will be given below.

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

It can be seen that, in the embodiment of the present application, the apparatus for configuring the sounding reference signal applied to the terminal can acquire the first information, and determine the resource location distribution for transmitting the sounding reference signal according to the first information. Since the first information is sent by the network device to the sounding reference signal configuration apparatus, it is beneficial for the network device to configure the resource location distribution for SRS transmission. In addition, the sounding reference signal configuration apparatus determines the resource location distribution for transmitting the SRS according to the first information, and then transmits the SRS through the resource location distribution. Because the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, all or part of the SRS can be transmitted, and the utilization efficiency of the frequency band resources is improved. At the same time, the transmission part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources that are not used for the transmission of the SRS can be allocated to other terminals to improve the multiplexing capability of the SRS.

In a possible example, the first information includes at least one of the following: resource location distribution mode information based on a subband level, and resource location distribution mode information based on a subband.

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

In a possible example, the subband size of the subband is configured by RRC signaling.

In a possible example, in the aspect of determining the resource location distribution for transmitting the SRS according to the first information, the processing unit 1402 is specifically configured to: determine according to the subband level-based resource location distribution information Location distribution of time domain and/or frequency domain resources used to transmit the SRS within the sounding reference signal resources.

In a possible example, the sub-band level-based resource location distribution manner information includes: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2.

In a possible example, the length of the first bitmap information satisfies at least one of the following ways: the length of the first bitmap information is determined by the second parameter, and the length of the first bitmap information is determined by The number of subbands of the subbands configured in the sounding reference signal resource is determined; wherein, the second parameter is used to indicate resource mapping information.

In a possible example, the domain in the second parameter includes at least one of the following: the number of consecutive OFDM symbols, and the repetition factor.

In a possible example, the set of the number of consecutive OFDM symbols is determined by the first set of the number of symbols and the second set of the number of symbols; the set of repetition factors is determined by the first set of repetition factors and the second set of repetition factors Determine; wherein, the set of the number of consecutive OFDM symbols is used to represent the set composed of the number of consecutive OFDM symbols, and the set of repetition factors is used to represent the set composed of the repetition factor.

In a possible example, the position distribution of bits in the first bitmap information has a corresponding relationship with the position distribution of time-frequency domain resources used for transmitting the SRS.

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 A bit is one bit in the first bitmap information.

In a possible example, in the case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and the Y is greater than or equal to 1, if the Y is 1, then The X bits are reserved bits; and/or, if the Y is less than or equal to the X, whether to transmit the SRS on the Y time-frequency domain resources is determined by the bits in the X bits of information. and/or, if the Y is greater than the X, determining whether to transmit the SRS on the X time-frequency resources in the Y time-frequency resources is determined by the bits in the X-bit information In addition to the indication, whether to transmit the SRS on the remaining time-frequency domain resources in the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.

In a possible example, the sub-band level-based resource location distribution manner information further includes: time domain resource compression manner information, where the time domain resource compression manner information is used to perform the time domain location distribution of the SRS transmission. compression.

In a possible example, the 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 .

In a possible example, in the aspect of determining the resource location distribution used for transmitting the SRS according to the first information, the processing unit 1402 is specifically configured to: determine according to the information on the resource location distribution method based on the subband A frequency domain location distribution for transmitting the SRS within the subband.

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

In a possible example, the length of the second bitmap information satisfies at least one of the following manners: 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 included in the subband size of the subband is determined; wherein, the L is an integer greater than or equal to 1.

In a possible example, the positions of the bits in the second bitmap information have a corresponding relationship with the frequency domain position distribution used for transmitting the SRS in the subband.

In a possible example, the second bit in the second bitmap information is used to indicate whether to transmit the SRS at the frequency domain position in the subband corresponding to the position of the second bit , the second bit is a bit in the second bitmap information.

In a possible example, all bits in the M-bit information indicate the frequency domain location distribution for transmitting the SRS in the subband according to a coding combination.

In a possible example, N bits in the M-bit information are used to indicate the number P of frequency domain resources used to transmit the SRS in the subband, and N is an integer greater than or equal to 1, The P is less than or equal to the number of PRBs included in the subband size of the subband; the remaining bits except the N bits in the M-bit information indicate the P frequency bits according to the coding combination. Location distribution of domain resources within the subband.

In a possible example, the value of S is determined by the number of patterns that exist in the number of frequency domain resources used for transmitting the SRS in the subband.

In a possible example, the first indication domain information is used to indicate the quantity Q of frequency domain resources used for transmitting the SRS in the subband, where Q is a subband smaller than or equal to the subband The number of PRBs included in the size.

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

In a possible example, in the aspect of determining the frequency domain location distribution for transmitting the SRS in the subband according to the information based on the resource location distribution in the subband, the processing unit 1402 is specifically configured to: The frequency domain location distribution for transmitting the SRS in the subband is determined in a manner of reuse or the same transmission mode based on the resource location distribution information in the subband.

In a possible example, the first information is transmitted by at least one of RRC signaling, a control element MAC CE of the medium access control layer, and downlink control information DCI.

In the case of using integrated units, FIG. 15 provides a block diagram of functional units of yet another sounding reference signal configuration apparatus. The sounding reference signal apparatus 1500 is applied to network equipment, 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 configured to support the network device to perform the steps in FIG. 2 and/or other processes for the technical solutions described in this embodiment. The communication unit 1503 is used to support the communication between the network device and the terminal. The sounding reference signal apparatus 1500 may further include a storage unit 1501 for storing program codes and data of the network device.

The processing unit 1502 may be a processor or a controller, such as a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this embodiment. The processing unit 1502 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like. The communication unit 1503 may be a communication interface, a transceiver, a transceiver circuit, etc., and the storage unit 1501 may 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 apparatus 1500 involved in this embodiment of the present application may be the network device shown in FIG. 17 .

During specific implementation, the processing unit 1502 is configured to perform any step performed by the network device in the above method embodiments, and when performing data transmission such as sending, the communication unit 1503 can be selectively invoked to complete corresponding operations. A detailed description will be given below.

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

It can be seen that, in the embodiment of the present application, the sounding reference signal configuration apparatus applied to the network device can send the first information to the terminal, thereby facilitating the configuration of the resource location distribution for SRS transmission by the network device. In addition, the terminal determines the resource location distribution for transmitting the SRS according to the first information, and then transmits the SRS through the resource location distribution. Because the SRS only needs to be transmitted on all or part of the frequency band resources through the resource location distribution, all or part of the SRS can be transmitted, and the utilization efficiency of the frequency band resources is improved. At the same time, the transmission part of the SRS can obtain additional power gain to improve the power density, and the frequency band resources that are not used for the transmission of the SRS can be allocated to other terminals to improve the multiplexing capability of the SRS.

In a possible example, the subband size of the subband satisfies at least one of the following manners: the subband size of the subband is K physical resource blocks PRB, the subband size of the subband is determined by the first parameter It is determined that 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 the sounding reference signal frequency hopping; wherein, the first parameter is used to indicate the sounding reference signal. Frequency hopping information, the K is an integer greater than or equal to 1.

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

In a possible example, the length of the first bitmap information satisfies at least one of the following manners: the length of the first bitmap information is determined by a second parameter, the length of the first bitmap information It is determined by the number of subbands of the subbands configured in the sounding reference signal resource; wherein, the second parameter is used to indicate resource mapping information.

In a possible example, the field in the second parameter includes at least one of the following: the number of consecutive OFDM symbols, and the repetition factor.

In a possible example, the position distribution of bits in the first bitmap information has a corresponding relationship with the time-frequency domain position distribution used for transmitting the SRS.

In a possible example, the first bit in the first bit 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 The bit is one bit in the first bitmap information.

In a possible example, the aspect of 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 .

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

In a possible example, the position of the bit in the second bitmap information has a corresponding relationship with the frequency domain position distribution used for transmitting the SRS in the subband.

Please refer to FIG. 16. FIG. 16 is a schematic structural diagram of a terminal provided by an embodiment of the present application. 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 .

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

Communication interface 1630 is used to receive and transmit data.

The processor 1610 may be one or more CPUs, and if the processor 1610 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

The processor 1610 in the terminal 1600 is configured 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, where the first information is used to indicate the resource configuration of the sounding reference signal SRS; The resource location distribution for transmitting the SRS is determined according to the first information.

It should be noted that, the implementation of each operation may also correspond to the corresponding description with reference to the method embodiment shown in FIG. 2 , and the terminal 1600 may be used to execute the method on the terminal side in this embodiment, which will not be repeated here.

Please refer to FIG. 17. FIG. 17 is a schematic structural diagram of a network device provided by an embodiment of the present application. 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 .

The memory 1720 includes, but is not limited to, random access memory, read-only memory, erasable programmable read-only memory, or portable read-only memory, and the memory 1720 is used to store related instructions and data.

Communication interface 1730 is used to receive and transmit data.

The processor 1710 may be one or more CPUs, and if the processor 1710 is one CPU, the CPU may be a single-core CPU or a multi-core CPU.

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: send first information to the terminal, where the first information is used to indicate the resource configuration of the sounding reference signal SRS.

It should be noted that, the implementation of each operation may also correspond to the corresponding description with reference to the method embodiment shown in FIG. 2 , and the network device 1700 may be used to execute the method on the network device side in this embodiment, which will not be repeated here.

An embodiment of the present application further provides a chip, wherein the chip includes a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the description of the terminal and network device in the above method embodiments some or all of the steps.

Embodiments of the present application further 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 the computer to execute the terminal and the method in the foregoing method embodiments. Some or all of the steps described by the network device.

Embodiments of the present application further provide a computer program product, wherein the computer program product includes a computer program, and the computer program is operable to cause the computer to execute some or all of the steps described in the terminal and network device in the foregoing method embodiments. The computer program product may be a software installation package.

Those skilled in the art should realize that, in one or more of the above examples, the functions described in the embodiments of the present application may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in 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, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device. Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center via wire (e.g., the same coaxial cable, optical fiber, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.) to another website site, computer, server, or data center. A computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital video discs), or semiconductor media (eg, solid state drives), among others.

The specific embodiments described above further describe the purposes, technical solutions and beneficial effects of the embodiments of the present application in further detail. It can be understood that the above are only specific implementations of the embodiments of the present application, and are not intended to limit the present application. In the protection scope of the embodiments, any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application.

Claims

A sounding reference signal configuration method, comprising:

The terminal acquires first information from the network device, where the first information is used to indicate the resource configuration of the sounding reference signal SRS;

The terminal determines, according to the first information, resource location distribution for transmitting the SRS.
The method according to claim 1, wherein the first information comprises at least one of the following: resource location distribution mode information based on a subband level, and resource location distribution mode information based on a subband.
The method according to claim 2, wherein the sub-band size of the sub-band satisfies at least one of the following manners: the sub-band size of the sub-band is K physical resource blocks PRB, the sub-band of the sub-band The band size is determined by the first parameter, the sub-band size of the sub-band has a mapping relationship with the SRS transmission bandwidth, and the sub-band size of the sub-band is the smallest unit of sounding reference signal frequency hopping; wherein, the first parameter uses For indicating the frequency hopping information of the sounding reference signal, the K is an integer greater than or equal to 1.
The method according to claim 2 or 3, wherein the subband size of the subband is configured by RRC signaling.
The method according to any one of claims 2-4, wherein the terminal determines, according to the first information, resource location distribution for transmitting the SRS, comprising:

The terminal determines, according to the information on the resource location distribution manner based on the subband level, the location distribution of the time domain and/or frequency domain resources used for transmitting the SRS in the sounding reference signal resources.
The method according to claim 5, wherein the subband level-based resource location distribution mode information comprises: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2.
The method according to claim 6, wherein the length of the first bitmap information satisfies at least one of the following manners: the length of the first bitmap information is determined by a second parameter, the first bitmap information The length of the bitmap 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.
The method according to claim 7, wherein the field in the second parameter includes at least one of the following: the number of consecutive OFDM symbols and a repetition factor.
The method according to claim 8, wherein the set of the number of consecutive OFDM symbols is determined by the first set of the number of symbols and the second set of the number of symbols; the set of repetition factors is determined by the first set of repetition factors and the second repetition factor set is determined; wherein, the set of the number of consecutive OFDM symbols is used to represent the set composed of the number of consecutive OFDM symbols, and the set of repetition factors is used to represent the set composed of the repetition factor gather.
The method according to any one of claims 6-9, wherein the position distribution of the bits in the first bitmap information has a corresponding relationship with the position distribution of the time-frequency domain resources used for transmitting the SRS .
The method according to any one of claims 6-10, wherein the first bit in the first bitmap information is used to indicate whether the terminal corresponds to the position of the first bit The SRS is transmitted in a time-frequency domain position, and the first bit is a bit in the first bitmap information.
The method according to claim 6, wherein, in the case where Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and the Y is greater than or equal to 1, if all Said Y is 1, then said X bits are reserved bits; and/or,

If the Y is less than or equal to the X, whether the terminal transmits the SRS on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and/or,

If the Y is greater than the X, except whether the terminal transmits the SRS on the X time-frequency resources in the Y time-frequency resources is indicated by the bits in the X-bit information , whether the terminal transmits the SRS on the remaining time-frequency domain resources in the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.
The method according to any one of claims 6-12, wherein the subband level-based resource location distribution mode information further comprises: time-domain resource compression mode information, wherein the time-domain resource compression mode information is used for The time-domain location distribution of the SRS transmission is compressed.
The method according to claim 13, wherein the compressing the time domain location distribution of the SRS transmission comprises:

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.
The method according to any one of claims 2-4, wherein the terminal determines, according to the first information, resource location distribution for transmitting the SRS, comprising:

The terminal determines, according to the information based on the resource location distribution in the subband, a frequency domain location distribution for transmitting the SRS in the subband.
The method according to claim 15, wherein the information based on the resource location distribution mode in the subband comprises at least one of the following: second bitmap information, M-bit information, and S pieces of first indication field information, The M is an integer greater than or equal to 1, and the S is an integer greater than or equal to 1.
The method according to claim 16, wherein the length of the second bitmap information satisfies at least one of the following ways: the length of the second bitmap information is L bits, the second bitmap The length of the bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein, the L is an integer greater than or equal to 1.
The method according to claim 16 or 17, wherein the position of the bit in the second bitmap information has a corresponding relationship with the frequency domain position distribution in the subband for transmitting the SRS.
The method according to any one of claims 16-18, wherein the second bit in the second bitmap information is used to indicate whether the terminal corresponds to the position of the second bit The SRS is transmitted at the frequency domain position in the subband, and the second bit is a bit in the second bitmap information.
The method according to claim 16, wherein all bits in the M-bit information indicate a frequency domain position distribution for transmitting the SRS in the subband according to a coding combination.
The method according to claim 16, wherein N bits in the M-bit information are used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband, and N is Integer greater than or equal to 1, the P is less than or equal to the number of PRBs included in the sub-band size of the sub-band; the remaining bits in the M-bit information except the N bits are determined according to the coding combination. Indicates the location distribution of the P frequency domain resources in the subband.
The method according to claim 16, wherein the value of S is determined by the number of patterns that exist in the number of frequency domain resources used for transmitting the SRS in the subband.
The method according to claim 22, wherein the first indication domain information is used to indicate the quantity Q of frequency domain resources used for transmitting the SRS in the subband, and the Q is less than or equal to the Describes the number of PRBs included in the subband size of the subband.
The method according to claim 23, wherein the first indication domain information includes R-bit information, and all bits in the R-bit information indicate that the Q frequency domain resources are in all The position distribution in the subband, the R is an integer greater than or equal to 1.
The method according to any one of claims 15-24, wherein the terminal determines, according to the information based on the resource location distribution in the subband, a frequency domain used for transmitting the SRS in the subband Location distribution, including:

The terminal determines, by using the information based on the resource location distribution in the subband, the frequency domain location distribution for transmitting the SRS in the subband in a manner of reuse or the same transmission mode.
The method according to any one of claims 1-25, wherein the first information is transmitted by at least one of RRC signaling, a control element MAC CE of a medium access control layer, and downlink control information DCI.
A sounding reference signal configuration method, comprising:

The network device sends first information to the terminal, where the first information is used to indicate the resource configuration of the sounding reference signal SRS.
The method according to claim 27, wherein the first information comprises at least one of the following: resource location distribution method information based on a subband level, and resource location distribution method information based on a subband.
The method according to claim 28, wherein the sub-band size of the sub-band satisfies at least one of the following manners: the sub-band size of the sub-band is K physical resource blocks PRB, the sub-band size of the sub-band The band size is determined by the first parameter, the sub-band size of the sub-band has a mapping relationship with the sounding reference signal transmission bandwidth, and the sub-band size of the sub-band is the minimum unit of the sounding reference signal frequency hopping; wherein, the first The parameter is used to indicate the frequency hopping information of the sounding reference signal, and the K is an integer greater than or equal to 1.
The method according to claim 28 or 29, wherein the subband size of the subband is configured by RRC signaling.
The method according to any one of claims 28-30, wherein the information on the resource location distribution based on the subband level comprises: first bit bitmap information or X bit information, where X is greater than or equal to An integer of 2.
The method according to claim 31, wherein the length of the first bitmap information satisfies at least one of the following ways: the length of the first bitmap information is determined by a second parameter, the first bitmap information The length of the bitmap information is determined by the number of the subbands configured in the sounding reference signal resource; wherein, the second parameter is used to indicate resource mapping information.
The method according to claim 32, wherein the field in the second parameter comprises at least one of the following: the number of consecutive OFDM symbols, and a repetition factor.
The method according to claim 33, wherein the set of the number of consecutive OFDM symbols is determined by the first set of the number of symbols and the second set of the number of symbols; the set of repetition factors is determined by the first set of repetition factors and the second repetition factor set is determined; wherein, the set of the number of consecutive OFDM symbols is used to represent the set composed of the number of consecutive OFDM symbols, and the set of repetition factors is used to represent the set composed of the repetition factor gather.
The method according to any one of claims 31-34, wherein the position distribution of the bits in the first bitmap information has a corresponding relationship with the time-frequency domain position distribution used for transmitting the SRS.
The method according to any one of claims 31-35, wherein the first bit in the first bitmap information is used to indicate whether the terminal corresponds to the position of the first bit The SRS is transmitted in a time-frequency domain position, and the first bit is a bit in the first bitmap information.
The method according to claim 31, wherein in the case where Y time-frequency resources for transmitting the SRS are configured in the sounding reference signal resource and the Y is greater than or equal to 1, if all Said Y is 1, then said X bits are reserved bits; and/or,

If the Y is less than or equal to the X, whether the terminal transmits the SRS on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and/or,

If the Y is greater than the X, except whether the terminal transmits the SRS on the X time-frequency resources in the Y time-frequency resources is indicated by the bits in the X-bit information , whether the terminal transmits the SRS on the remaining time-frequency domain resources in the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.
The method according to any one of claims 31 to 37, wherein the subband level-based resource location distribution mode information further comprises: time-domain resource compression mode information, wherein the time-domain resource compression mode information is used for The time-domain location distribution of the SRS transmission is compressed.
The method according to claim 38, wherein the compressing the time domain location distribution of the SRS frequency hopping comprises:

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.
The method according to any one of claims 28-30, wherein the information based on the resource location distribution in the subband comprises at least one of the following: second bitmap information, M-bit information, S-th An indication field information, the M is an integer greater than or equal to 1, and the S is an integer greater than or equal to 1.
The method according to claim 40, wherein the length of the second bitmap information satisfies at least one of the following manners: the length of the second bitmap information is L bits, the second bit The length of the bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein, the L is an integer greater than or equal to 1.
The method according to claim 40 or 41, wherein the position of the bit in the second bitmap information has a corresponding relationship with the frequency domain position distribution used for transmitting the SRS in the subband.
The method according to any one of claims 40-42, wherein the second bit in the second bitmap information is used to indicate whether the terminal corresponds to the position of the second bit The SRS is transmitted at the frequency domain position in the subband, and the second bit is a bit in the second bitmap information.
The method according to claim 40, wherein all bits in the M-bit information indicate a frequency domain position distribution for transmitting the SRS in the subband according to a coding combination.
The method according to claim 40, wherein N bits in the M-bit information are used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband, and N is Integer greater than or equal to 1, the P is less than or equal to the number of PRBs included in the sub-band size of the sub-band; the remaining bits in the M-bit information except the N bits are determined according to the coding combination. Indicates the location distribution of the P frequency domain resources in the subband.
The method according to claim 40, wherein the value of S is determined by the number of patterns existing in the number of frequency domain resources used for transmitting the SRS in the subband.
The method according to claim 46, wherein the first indication domain information is used to indicate the quantity Q of frequency domain resources used for transmitting the SRS in the subband, and the Q is less than or equal to the Describes the number of PRBs included in the subband size of the subband.
The method according to claim 47, wherein the first indication domain information includes R-bit information, and all bits in the R-bit information indicate that the Q frequency domain resources are in all The position distribution in the subband, the R is an integer greater than or equal to 1.
The method according to any one of claims 27-48, wherein the first information is transmitted by at least one of RRC signaling, a control element MAC CE of a medium access control layer, and downlink control information DCI.
An apparatus for configuring a sounding reference signal, characterized in that, when applied to a terminal, the apparatus includes a processing unit and a communication unit, and the processing unit is configured to:

Acquire first information from the network device through the communication unit, where the first information is used to indicate the resource configuration of the sounding reference signal SRS;

Resource location distribution for transmitting the SRS is determined according to the first information.
The apparatus according to claim 50, wherein the first information includes at least one of the following: resource location distribution mode information based on a subband level, and resource location distribution mode information based on a subband.
The apparatus according to claim 51, wherein the subband size of the subband satisfies at least one of the following manners: the subband size of the subband is K physical resource blocks PRB, the subband size of the subband The band size is determined by the first parameter, the sub-band size of the sub-band has a mapping relationship with the SRS transmission bandwidth, and the sub-band size of the sub-band is the smallest unit of sounding reference signal frequency hopping; wherein, the first parameter uses For indicating the frequency hopping information of the sounding reference signal, the K is an integer greater than or equal to 1.
The apparatus according to claim 51 or 52, wherein the subband size of the subband is configured by RRC signaling.
The apparatus according to any one of claims 51-53, wherein the determining, according to the first information, the resource location distribution for transmitting the SRS, the processing unit is specifically configured to:

The location distribution of the time domain and/or frequency domain resources used for transmitting the SRS in the sounding reference signal resource is determined according to the information on the resource location distribution manner based on the subband level.
The apparatus according to claim 54, wherein the sub-band level-based resource location distribution mode information comprises: first bit bitmap information or X-bit information, where X is an integer greater than or equal to 2.
The apparatus according to claim 55, wherein the length of the first bitmap information satisfies at least one of the following ways: the length of the first bitmap information is determined by a second parameter, the first The length of the bitmap 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.
The apparatus according to claim 56, wherein the field in the second parameter includes at least one of the following: the number of consecutive OFDM symbols and a repetition factor.
The apparatus according to claim 57, wherein the set of the number of consecutive OFDM symbols is determined by the first set of the number of symbols and the second set of the number of symbols; the set of repetition factors is determined by the first set of repetition factors and the second repetition factor set is determined; wherein, the set of the number of consecutive OFDM symbols is used to represent the set composed of the number of consecutive OFDM symbols, and the set of repetition factors is used to represent the set composed of the repetition factor gather.
The apparatus according to any one of claims 55-58, wherein the position distribution of the bits in the first bitmap information has a corresponding relationship with the position distribution of the time-frequency domain resources used for transmitting the SRS .
The apparatus according to any one of claims 55-59, wherein the first bit in the first bitmap information is used to indicate whether the first bit is in the time-frequency domain corresponding to the position of the first bit The SRS is transmitted at the location, and the first bit is a bit in the first bitmap information.
The apparatus according to claim 55, wherein when Y time-frequency domain resources for transmitting the SRS are configured in the sounding reference signal resource and the Y is greater than or equal to 1, if all Said Y is 1, then said X bits are reserved bits; and/or,

If the Y is less than or equal to the X, whether to transmit the SRS on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and/or,

If the Y is greater than the X, in addition to whether the SRS is transmitted on the X time-frequency resources in the Y time-frequency resources is indicated by the bits in the X-bit information, whether the The transmission of the SRS on the remaining time-frequency domain resources in the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.
The apparatus according to any one of claims 55-61, wherein the subband level-based resource location distribution mode information further comprises: time-domain resource compression mode information, wherein the time-domain resource compression mode information is used for The time-domain location distribution of the SRS transmission is compressed.
The apparatus according to claim 62, wherein the compressing the time domain location distribution of the SRS transmission comprises:

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.
The apparatus according to any one of claims 51-53, wherein 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 location distribution for transmitting the SRS in the subband is determined according to the information based on the resource location distribution in the subband.
The apparatus according to claim 64, wherein the information based on the resource location distribution in the subband comprises at least one of the following: second bitmap information, M-bit information, and S pieces of first indication field information, The M is an integer greater than or equal to 1, and the S is an integer greater than or equal to 1.
The apparatus according to claim 65, wherein the length of the second bitmap information satisfies at least one of the following manners: the length of the second bitmap information is L bits, the second bit The length of the bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein, the L is an integer greater than or equal to 1.
The apparatus according to claim 65 or 66, wherein the position of the bit in the second bitmap information has a corresponding relationship with the frequency domain position distribution used for transmitting the SRS in the subband.
The apparatus according to any one of claims 65 to 67, wherein the second bit in the second bitmap information is used to indicate whether the sub-subsection corresponding to the position of the second bit The SRS is transmitted at an in-band frequency domain position, and the second bit is a bit in the second bitmap information.
The apparatus according to claim 65, wherein all bits in the M-bit information indicate a frequency domain position distribution for transmitting the SRS in the subband according to a coding combination.
The apparatus according to claim 65, wherein N bits in the M-bit information are used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband, and N is Integer greater than or equal to 1, the P is less than or equal to the number of PRBs included in the sub-band size of the sub-band; the remaining bits in the M-bit information except the N bits are determined according to the coding combination. Indicates the location distribution of the P frequency domain resources in the subband.
The apparatus according to claim 65, wherein the value of S is determined by the number of patterns that exist in the number of frequency domain resources used to transmit the SRS in the subband.
The apparatus according to claim 71, wherein the first indication domain information is used to indicate the quantity Q of frequency domain resources used for transmitting the SRS in the subband, and the Q is less than or equal to the Describes the number of PRBs included in the subband size of the subband.
The apparatus according to claim 72, wherein the first indication domain information includes R-bit information, and all bits in the R-bit information indicate that the Q frequency domain resources are in all The position distribution in the subband, the R is an integer greater than or equal to 1.
The apparatus according to any one of claims 65-73, wherein the frequency domain position for transmitting the SRS in the subband is determined according to the information based on the resource position distribution mode in the subband distribution, the processing unit is specifically used for:

The frequency domain location distribution for transmitting the SRS in the subband is determined in a manner of reuse or the same transmission mode based on the resource location distribution information in the subband.
The apparatus according to any one of claims 50-74, wherein the first information is transmitted by at least one of RRC signaling, a control element MAC CE of a medium access control layer, and downlink control information DCI.
An apparatus for configuring a sounding reference signal, characterized in that, when applied to a network device, the apparatus includes a processing unit and a communication unit, and the processing unit is configured to:

The first information is sent to the terminal through the communication unit, where the first information is used to indicate the resource configuration of the sounding reference signal SRS.
The apparatus according to claim 76, wherein the first information comprises at least one of the following: resource location distribution method information based on a subband level, and resource location distribution method information based on a subband.
The apparatus according to claim 77, wherein the sub-band size of the sub-band satisfies at least one of the following manners: the sub-band size of the sub-band is K physical resource blocks PRB, the sub-band of the sub-band The band size is determined by the first parameter, the sub-band size of the sub-band has a mapping relationship with the SRS transmission bandwidth, and the sub-band size of the sub-band is the smallest unit of sounding reference signal frequency hopping; wherein, the first parameter uses For indicating the frequency hopping information of the sounding reference signal, the K is an integer greater than or equal to 1.
The apparatus according to claim 76 or 78, wherein the subband size of the subband is configured by RRC signaling.
The apparatus according to any one of claims 77-79, wherein the information on the resource location distribution mode based on the subband level comprises: first bit bitmap information or X bit information, where X is greater than or equal to An integer of 2.
The apparatus according to claim 80, wherein the length of the first bitmap information satisfies at least one of the following ways: the length of the first bitmap information is determined by a second parameter, the first The length of the bitmap information is determined by the number of the subbands configured in the sounding reference signal resource; wherein, the second parameter is used to indicate resource mapping information.
The apparatus according to claim 81, wherein the field in the second parameter includes at least one of the following: the number of consecutive OFDM symbols, and a repetition factor.
The apparatus according to claim 82, wherein the set of the number of consecutive OFDM symbols is determined by the first set of the number of symbols and the second set of the number of symbols; the set of repetition factors is determined by the first set of repetition factors and the second repetition factor set is determined; wherein, the set of the number of consecutive OFDM symbols is used to represent the set composed of the number of consecutive OFDM symbols, and the set of repetition factors is used to represent the set composed of the repetition factor gather.
The apparatus according to any one of claims 80-83, wherein the position distribution of the bits in the first bitmap information has a corresponding relationship with the time-frequency domain position distribution used for transmitting the SRS.
The apparatus according to any one of claims 80-84, wherein the first bit in the first bitmap information is used to indicate whether the first bit is in the time-frequency domain corresponding to the position of the first bit The SRS is transmitted at the location, and the first bit is a bit in the first bitmap information.
The apparatus according to claim 80, wherein when Y time-frequency resources for transmitting the SRS are configured in the sounding reference signal resource and the Y is greater than or equal to 1, if all Said Y is 1, then said X bits are reserved bits; and/or,

If the Y is less than or equal to the X, whether to transmit the SRS on the Y time-frequency domain resources is indicated by the bits in the X-bit information; and/or,

If the Y is greater than the X, in addition to whether the SRS is transmitted on the X time-frequency resources in the Y time-frequency resources is indicated by the bits in the X-bit information, whether the The transmission of the SRS on the remaining time-frequency domain resources in the Y time-frequency domain resources is indicated by reusing the bits in the X-bit information.
The apparatus according to any one of claims 80 to 86, wherein the subband level-based resource location distribution mode information further comprises: time-domain resource compression mode information, wherein the time-domain resource compression mode information is used for The time-domain location distribution of the SRS transmission is compressed.
The apparatus according to claim 87, wherein the compressing the time domain location distribution of the SRS frequency hopping comprises:

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.
The apparatus according to any one of claims 77-79, wherein the information based on the resource location distribution in the subband includes at least one of the following: second bitmap information, M-bit information, S-th An indication field information, the M is an integer greater than or equal to 1, and the S is an integer greater than or equal to 1.
The apparatus according to claim 89, wherein the length of the second bitmap information satisfies at least one of the following ways: the length of the second bitmap information is L bits, the second bit The length of the bitmap information is determined by the number of PRBs included in the subband size of the subband; wherein, the L is an integer greater than or equal to 1.
The apparatus according to claim 89 or 90, wherein the position of the bit in the second bitmap information has a corresponding relationship with the frequency domain position distribution used for transmitting the SRS in the subband.
The apparatus according to any one of claims 89 to 91, wherein the second bit in the second bitmap information is used to indicate whether the sub-subsection corresponding to the position of the second bit The SRS is transmitted at an in-band frequency domain position, and the second bit is a bit in the second bitmap information.
The apparatus according to claim 89, wherein all bits in the M-bit information indicate a frequency domain position distribution for transmitting the SRS in the subband according to a coding combination.
The apparatus according to claim 89, wherein N bits in the M-bit information are used to indicate the number P of frequency domain resources used for transmitting the SRS in the subband, and N is Integer greater than or equal to 1, the P is less than or equal to the number of PRBs included in the sub-band size of the sub-band; the remaining bits in the M-bit information except the N bits are determined according to the coding combination. Indicates the location distribution of the P frequency domain resources in the subband.
The apparatus according to claim 89, wherein the value of the S is determined by the number of patterns that exist in the number of frequency domain resources used to transmit the SRS in the subband.
The apparatus according to claim 95, wherein the first indication domain information is used to indicate the quantity Q of frequency domain resources used for transmitting the SRS in the subband, and the Q is less than or equal to the Describes the number of PRBs included in the subband size of the subband.
The apparatus according to claim 96, wherein the first indication field information includes R-bit information, and all bits in the R-bit information indicate that the Q frequency-domain resources are located in the The position distribution in the subband, the R is an integer greater than or equal to 1.
The apparatus according to any one of claims 76-97, wherein the first information is transmitted by at least one of RRC signaling, a control element MAC CE of a medium access control layer, and downlink control information DCI.
A terminal, characterized by comprising a processor, a memory, a communication interface and one or more programs, the one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps in the method of any of claims 1-26.
A network device, characterized by comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor, the The program includes instructions for performing the steps in the method of any of claims 27-49.
A chip, characterized by comprising a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1-49.
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 any one of claims 1-49 method described in item.