CN112469131A

CN112469131A - Method for configuring SRS resource symbol number and terminal equipment

Info

Publication number: CN112469131A
Application number: CN202011541310.6A
Authority: CN
Inventors: 张昊天
Original assignee: Oppo Chongqing Intelligent Technology Co Ltd
Current assignee: Oppo Chongqing Intelligent Technology Co Ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-03-09
Anticipated expiration: 2040-12-23
Also published as: CN112469131B

Abstract

The embodiment of the invention discloses a method for configuring SRS resource symbol number and terminal equipment, which are applied to the technical field of communication and can solve the problem that network equipment cannot flexibly configure proper symbol number for the terminal equipment to send SRS. The method comprises the following steps: acquiring a signal quality parameter of a reference signal; determining a target symbol number according to the signal quality parameter; and sending a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource.

Description

Method for configuring SRS resource symbol number and terminal equipment

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to a method for configuring SRS resource symbol number and terminal equipment.

Background

The terminal device may determine that the transmitted SRS occupies several sign bits in the time domain according to the number of symbols (nrofSymbols) of each SRS resource in the SRS configuration information in the reconfiguration message issued by the network device. At present, the number of symbols of SRS resources configured for the terminal device by the network device is 1, so that it is not possible to flexibly configure a proper number of symbols for the terminal device to transmit an SRS.

Disclosure of Invention

The embodiment of the invention provides a method for configuring SRS resource symbol number and terminal equipment, which are used for solving the problem that in the prior art, the number of SRS resource symbols configured for the terminal equipment by network equipment is 1, so that the SRS can not be flexibly transmitted by adopting proper symbol number according to the requirement of the terminal equipment.

In order to solve the above technical problem, the embodiment of the present invention is implemented as follows:

in a first aspect, a method for configuring the number of SRS resource symbols is provided, including:

acquiring a signal quality parameter of a reference signal; determining a target symbol number according to the signal quality parameter; and sending a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource.

In a second aspect, a terminal device is provided, which includes:

the acquisition module is used for acquiring the signal quality parameters of the reference signals;

determining a target symbol number according to the signal quality parameter;

a sending module, configured to send a resource request message to the network device, where the resource request message is used to request that a target symbol number is configured for an SRS resource.

In a third aspect, a terminal device is provided, including: a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the method of configuring the number of SRS resource symbols as in the first aspect.

In a fourth aspect, a computer readable storage medium is provided, on which a computer program is stored, which when executed by a processor, implements the method of configuring SRS resource symbol numbers as in the first aspect.

The embodiment of the invention provides a method for configuring SRS resource symbol number, which is used for acquiring signal quality parameters of a reference signal; determining a target symbol number according to the signal quality parameter; and sending a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource. Through the scheme, the terminal equipment can determine the appropriate target symbol number according to the signal quality parameter of the received reference signal, and request the network equipment to configure the target symbol number aiming at the SRS resource, so that the network equipment can flexibly configure the appropriate symbol number to the terminal equipment according to the quality of the current reference signal of the terminal equipment.

Drawings

Fig. 1 is a system architecture diagram of a communication system according to an embodiment of the present invention;

fig. 2 is a schematic diagram of a method for configuring SRS resource symbol number according to an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a terminal device according to an embodiment of the present invention;

fig. 5 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

First, the related technical content of the embodiment of the invention is introduced:

the application of positioning technology in life is widely seen, and the requirements of people on the delay and accuracy of positioning are more and more strict. In many positioning applications, accurate positioning is typically achieved by a combination of techniques:

1) global Navigation Satellite System (GNSS) based location information in outdoor scenes is provided.

2) Radio technologies such as Long Term Evolution (LTE) networks provide a variety of options to locate users, wireless networks, terrestrial beacon systems, etc.).

3) Inertial Measurement Units (IMUs) or sensors (e.g., based on accelerometer tracking of user position, gyroscopes, magnetometers, or vertical positioning with barometric pressure sensors).

The technologies are expected to play an important role in realizing accurate positioning in the future.

The Rel-15 NR Positioning topic defines a Cell-ID and radio access technology (RAT-independent) Positioning method based on the Lightweight Presentation Protocol (LPP). Rel-16 mainly studies a positioning method based on a radio access technology (NR standard RAT-dependent) in an independent NR, which specifically includes: a Downlink-time difference of Arrival (DL-TDOA) location method, a Downlink Angle-of-Departure (DL-AoD) location method, an Uplink-time difference of Arrival (UL-TDOA) location method, an Uplink Angle of Arrival (UL-AoA), a Round-trip time (RTT) location method, and an enhanced cell identifier (enhanced cell-ID, E-CID) location method, etc.

One of the main reference signals used by the positioning technology is a channel Sounding Reference Signal (SRS) for positioning, which is hereinafter referred to as SRS. Based on the SRS transmitted by the terminal device, the network device may measure the arrival time, the signal strength, the arrival tilt angle, and the like, thereby determining the location information of the terminal device.

The SRS configuration information is issued by the base station side, and includes SRS resource set type, transmission period, spatial relationship configuration information corresponding to each SRS resource, and configuration information such as path loss reference signal, which can be configured to the UE through RRC signaling.

The SRS configuration information may include a symbol number (nrofSymbols) of each SRS resource, and the terminal device may determine that the transmitted SRS occupies several symbol bits in the time domain according to the symbol number. At present, the number of symbols of SRS resources configured for the terminal device by the network device is 1, so that it is not possible to flexibly configure a proper number of symbols for the terminal device to transmit an SRS.

The embodiment of the invention provides a method for configuring SRS resource symbol number, wherein terminal equipment can determine whether the current configuration aiming at the first symbol number is matched with a target parameter range according to the target parameter range in which a signal quality parameter of a received reference signal is positioned, and if the first symbol number is not matched with the target symbol number (the target symbol number corresponds to the target parameter range), the terminal equipment can request network equipment to configure the target symbol number aiming at the SRS resource, so that the terminal equipment can be flexibly configured with proper symbol number according to the quality of the current reference signal of the terminal equipment.

Fig. 1 is a system architecture diagram of a communication system to which an embodiment of the present invention is applied. The communication system may include a network device, which may be a device that communicates with a terminal device (or referred to as a communication terminal, a terminal). A network device may provide communication coverage for a particular geographic area and may communicate with terminal devices located within that coverage area. Fig. 1 exemplarily shows one network device and two terminal devices, and optionally, the communication system may include a plurality of network devices and may include other numbers of terminal devices within the coverage of each network device, which is not limited in this embodiment of the present application. Optionally, the communication system may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

Optionally, the communication system may include a plurality of network devices and each network device may include other number of terminal devices within a coverage area, which is not limited in this embodiment of the present invention. Optionally, the communication system may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment of the present invention.

In this embodiment, the terminal device may be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, a user equipment, or the like.

The terminal device may be a Station (ST) in a WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with Wireless communication function, a computing device or other processing device connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next generation communication system such as an NR Network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) Network, and the like. In the embodiment of the invention, the terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.).

In the embodiment of the present invention, the terminal device may be a Mobile Phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal device in industrial control (industrial control), a wireless terminal device in self driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation safety (transportation safety), a wireless terminal device in city (smart city), a wireless terminal device in smart home (smart home), or the like.

By way of example, and not limitation, in embodiments of the present invention, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

The network device related to the embodiment of the invention can be an access network device. The access network device may be a long-term evolution (LTE) system, a Next Radio (NR) system, or an evolved base station (evolved Node B) in an authorized assisted access long-term evolution (LAA-LTE) system, which may be an eNB or an e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), or a new generation base station (g-NodeB). In this embodiment of the present invention, the network device may be a device for communicating with a mobile device, and the network device may be an Access Point (AP) in a WLAN, a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB, NB) in WCDMA, an evolved Node B (eNB or eNodeB) in LTE, a relay Station or an Access Point, a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a PLMN network for future evolution, or a network device in an NTN network. In this embodiment of the present invention, a network device may provide a service for a cell, and a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (e.g., a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), and the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

The technical scheme of the embodiment of the invention can be applied to various communication systems, such as: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an Advanced Long Term Evolution (LTE-A) System, a New Radio (NR) System, an Evolution System of an NR System, an LTE (LTE-based Access to unlicensed spectrum, an LTE-U) System on an unlicensed spectrum, an NR (NR-based Access to unlicensed spectrum, an NR-U) System on an unlicensed spectrum, a Non-Terrestrial communication network (UMTS-based network, UMTS) System, a Universal Mobile telecommunications network (UMTS) System, WLAN), Wireless Fidelity (WiFi), a fifth Generation communication (5th-Generation, 5G) system, or other communication systems, etc.

The network device related to the embodiment of the invention can be an access network device. The access network device may be an evolved Node B (eNB or e-NodeB) macro base station, a micro base station (also referred to as a "small base station"), a pico base station, an Access Point (AP), a Transmission Point (TP), a new generation base station (NodeB), or the like in a long-term evolution (LTE) system. In this embodiment of the present invention, a network device may provide a service for a cell, and a terminal device communicates with the network device through a transmission resource (e.g., a frequency domain resource or a spectrum resource) used by the cell, where the cell may be a cell corresponding to the network device (e.g., a base station), and the cell may belong to a macro base station or a base station corresponding to a Small cell (Small cell), and the Small cell may include: urban cells (Metro cells), Micro cells (Micro cells), Pico cells (Pico cells), Femto cells (Femto cells), and the like, and the small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship. It should be understood that "indication" mentioned in the embodiments of the present application may be a direct indication, an indirect indication, or an indication of an association relationship. For example, a indicates B, which may mean that a directly indicates B, e.g., B may be obtained by a; it may also mean that a indicates B indirectly, for example, a indicates C, and B may be obtained by C; it can also mean that there is an association between a and B. In the description of the embodiments of the present invention, the term "correspond" may indicate that there is a direct correspondence or an indirect correspondence between the two, may also indicate that there is an association between the two, and may also indicate and be indicated, configure and configured, and so on. Optionally, the indication Information in the embodiment of the present invention includes at least one of physical layer signaling, for example, Downlink Control Information (DCI), Radio Resource Control (RRC) signaling, and Media Access Control Element (MAC CE). Optionally, the higher layer parameter or the higher layer signaling in the embodiment of the present invention includes at least one of Radio Resource Control (RRC) signaling and Media Access Control Element (MAC CE).

The embodiment of the invention provides a method for allocating SRS resource symbol number, wherein terminal equipment can acquire signal quality parameters of reference signals; determining the number of target symbols according to the signal quality parameter; and then transmitting a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource.

The method for configuring the number of the SRS resource symbols provided by the embodiment of the invention can acquire the signal quality parameters of the reference signal; determining a target symbol number according to the signal quality parameter; and sending a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource. Through the scheme, the terminal equipment can determine the appropriate target symbol number according to the signal quality parameter of the received reference signal, and request the network equipment to configure the target symbol number aiming at the SRS resource, so that the network equipment can flexibly configure the appropriate symbol number to the terminal equipment according to the quality of the current reference signal of the terminal equipment.

Optionally, the determining the target symbol number according to the signal quality parameter includes: and determining a target parameter range in which the signal quality parameter is positioned, wherein the target parameter range corresponds to the target symbol number.

Optionally, the sending, by the terminal device, the resource request message to the network device includes: and if the first symbol number configured aiming at the SRS resource is not matched with the target symbol number, sending a resource request message to the network equipment.

As shown in fig. 2, an embodiment of the present invention provides a method for configuring SRS resource symbol number, where the method includes:

201. the network equipment configures a first symbol number for the terminal equipment aiming at the SRS resource.

Optionally, the network device may indicate the first symbol number to the terminal device through the indication information.

Optionally, the network device may configure the first symbol number to the terminal device through an RRC reconfiguration message.

Wherein, the network device can configure the first symbol number to the terminal device through the symbol number (nrofSymbols) in the configuration information (SRS-config) of the SRS in the reconfiguration message.

202. The terminal equipment acquires the signal quality parameters of the reference signals.

Optionally, the reference Signal may be a Synchronization Signal Block (SSB) or a Channel state information reference Signal CSI-RS (Channel state information), where the PBCH is a Broadcast Physical Channel (Physical Broadcast Channel).

Wherein, the SSB is mainly used for downlink synchronization. In Long Term Evolution (LTE), a terminal device synchronizes through a primary synchronization sequence and a secondary synchronization sequence broadcast and sent by a network device. In NR, the concept of SSB is introduced, which is to simply combine the original PrimARy Synchronization Signals (PSS), Secondary Synchronization Signals (SSS), PBCH, and Demodulation Reference Signals (DMRS), that is, the PrimARy Synchronization sequence, the Secondary Synchronization sequence, the physical broadcast channel, and the Demodulation Reference Signal are received in four consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols to form SSB.

The main functions of the CSI-RS comprise:

1. and auxiliary receiving of the downlink PDSCH shared channel.

Optionally, the method may be specifically used for performing tracking positioning in time-frequency domain, Reference Signal Receiving Power (RSRP) calculation of a physical channel in an RRC connected state, and mobility measurement based on a beam level.

2. And measuring the downlink channel quality and reporting the channel state for network equipment to perform link self-adaptive adjustment.

3. The CSI-RS can also be used as a means for estimating the channel quality of a downlink physical layer.

Optionally, the signal quality parameter includes at least one of:

(1)RSRP；

RSRP is one of the key parameters that can represent radio signal strength in LTE networks and physical layer measurement requirements, and is the average of the received signal power over all REs (resource elements) that carry reference signals within a certain symbol. It is colloquially understood that the power value of RSRP represents the power value of each subcarrier.

(2) Reference Signal Receiving Quality (RSRQ);

RSRQ may be calculated from RSRP: RSRQ is N RSRP/RSSI;

where N is the number of Resource Blocks (RBs) of the carrier Received Signal Strength Indication (RSSI) measurement bandwidth.

(3) Signal to Interference plus Noise Ratio (SINR) of the reference Signal;

SINR refers to the ratio of the strength of a received desired signal to the strength of a received interfering signal (noise and interference).

The SINR may be expressed as: SINR is Signal/(Interference + Noise).

Where Signal is the measured power of the useful Signal, the signals and channels of primary interest include: RS, PDSCH; the Interference is the measured power of a signal or a channel Interference signal, and the Interference signal includes the Interference of other cells of the system and the Interference of different systems: noise is Noise, which is related to the specific measurement bandwidth and the receiver Noise figure.

(4) Signal to Noise Ratio (SNR) of the reference Signal.

The SNR is a ratio of a useful Signal Power (Power of Signal) to a Noise Power (Power of Noise).

203. The terminal equipment determines the target parameter range where the signal quality parameter is located.

204. The terminal equipment judges whether the first symbol number is matched with the target symbol number.

If the first symbol number for the SRS resource configuration does not match the target symbol number, performing 205 to 207; if the first number of symbols for the SRS resource allocation matches the target number of symbols, 208 is performed, as follows.

Wherein the target number of symbols corresponds to a target parameter range.

Based on the embodiment of the present invention that the signal quality parameter includes at least one of RSRP, RSRQ, SINR, and SNR, there are various ways to determine whether the first symbol number matches the target symbol number, and several possible implementation manners are described in the following exemplary:

the first implementation mode comprises the following steps: the signal quality parameter is RSRP

And determining a target RSRP parameter range in which the RSRP is positioned, and judging whether the first symbol number is matched with a target symbol number corresponding to the target RSRP parameter range.

Optionally, the RSRP of the reference signal sent by the network device is received by the bottom-layer acquisition terminal device, an n-level threshold is set, and a target RSRP parameter range where the RSRP is located is determined by the n-level threshold, where n is an integer greater than or equal to 1.

The lower layer may refer to a MAC layer in a modem (modem).

Optionally, assuming that n is 2, the 2-level thresholds are represented as RSRP _ threshold1 and RSRP _ threshold2, respectively, when RSRP > RSRP _ threshold1 of a reference signal sent by the network device indicates that the terminal device is closer to the network device, the RSRP > RSRP _ threshold1 of the reference signal corresponds to configuring SRS resources to be 1 symbol; when the RSRP of the transmitted reference signal meets the condition that the RSRP is not less than RSRP _ threshold2 and not more than RSRP is not less than RSRP _ threshold1, the distance between the terminal equipment and the network equipment is moderate, and at this time, the corresponding SRS resource configuration is 2 symbols; when the RSRP < RSRP _ threshold2 of the reference signal sent by the network device indicates that the terminal device is far away from the network device, the SRS resource is configured to be 4 symbols.

For example, the RSRP parameter range and the symbol number may be corresponding as shown in table 1 below.

TABLE 1

RSRP parameter Range	Number of symbols
		RSRP>RSRP_threshold1	1 symbol
RSRP_threshold2≤RSRP≤RSRP_threshold1	2 symbol
		RSRP<RSRP_threshold2	4 symbol

Illustratively, two thresholds are set, wherein one threshold is represented as threshold1, the other threshold is represented as threshold2, threshold1 is-110 dBm, threshold2 is-120 dBm, when the RSRP of the SSB or CSI-RS received by the terminal device is-115 dBm, less than threshold1 and greater than threshold2, the distance from the terminal device to the network device is considered to be moderate, the number of symbols corresponding to the SRS resource configuration is 2 symbols, and if the number of symbols of the SRS resource configured by the current network device to the terminal device is not 2 symbols, but 1 symbol or 4 symbols, the terminal device may request the network device to configure 2 symbols for the SRS resource.

Illustratively, two thresholds are set, one of the thresholds is represented as threshold1, the other threshold is represented as threshold2, threshold1 is-110 dBm, threshold2 is-120 dBm, when the RSRP of the SSB or CSI-RS received by the terminal device is-123 dBm and is less than threshold2, the terminal device is considered to be farther away from the network device, and may be located at the edge of the cell where the network device is located, and the number of symbols corresponding to the SRS resource configuration is 4 symbols, and if the number of symbols of the SRS resource configured to the terminal device by the current network device is not 4 symbols but 1 symbol or 2 symbols, the terminal device may request the network device to configure 4 symbols for the SRS resource.

Further, in the moving process of the user of the terminal device, after a period of time, the RSRP of the SSB or CSI-RS received by the terminal device and sent by the network device changes from-123 dBm to-100 dBm, and at this time, the terminal device is considered to be closer to the network device. If the number of the symbols of the SRS resource configured for the mobile phone by the network device is 4 symbols at present, the terminal device may request the network device to configure 1 symbol for the SRS resource again.

In the above implementation, the RSRP is inversely proportional to the number of symbols to be configured, and the smaller the RSRP is, the larger the number of symbols corresponding to the target RSRP range in which the RSRP is located is; when the RSRP is larger, the symbol number corresponding to the target RSRP range in which the RSRP is positioned is smaller;

the RSRP can represent the signal quality of the reference signal, so that the signal quality is better when the RSRP is larger, and the transmission requirement of the SRS resource can be met by selecting fewer symbols, thereby saving time domain resources. Correspondingly, the signal quality is not good when the RSRP is small, more symbols are selected, channel estimation can be carried out more accurately, uplink codebook selection and downlink precoding matrix calculation can be more accurate, and the accuracy of uplink decoding is increased.

The second implementation mode comprises the following steps: the signal quality parameters include RSRQ

And determining a target RSRQ parameter range in which the RSRQ is positioned, and judging whether the first symbol number is matched with a target symbol number corresponding to the target RSRQ parameter range.

Optionally, the RSRQ of the reference signal sent by the network device is received by the bottom-layer acquisition terminal device, an n-level threshold is set, and a target RSRQ parameter range where the RSRQ is located is determined by the n-level threshold, where n is an integer greater than or equal to 1.

Optionally, assuming that n is 2, the 2-level thresholds are represented as RSRQ _ threshold1 and RSRQ _ threshold2, respectively, and when RSRQ > RSRQ _ threshold1 of a reference signal sent by the network device indicates that the terminal device is closer to the network device, RSRQ > RSRQ _ threshold1 of the reference signal corresponds to configuring SRS resources to be 1 symbol; when the RSRQ of the transmitted reference signal meets the condition that the RSRQ is not less than RSRQ _ threshold2 and not more than RSRQ _ threshold1, the distance between the terminal equipment and the network equipment is moderate, and at the moment, the corresponding SRS resource configuration is 2 symbols; when the RSRQ < RSRQ _ threshold2 of the reference signal sent by the network device indicates that the terminal device is far away from the network device, the SRS resource is configured to be 4 symbols.

For example, the RSRQ parameter range and the symbol number may be corresponding as shown in table 2 below.

TABLE 2

In the above implementation, the RSRQ is inversely proportional to the number of symbols to be configured, and the smaller the RSRQ is, the larger the number of symbols corresponding to the target RSRQ range in which the RSRQ is located is; when the RSRQ is larger, the symbol number corresponding to the target RSRQ range in which the RSRQ is positioned is smaller;

the RSRQ can represent the signal quality of the reference signal, so that the signal quality is better when the RSRQ is larger, and the transmission requirement of the SRS resource can be met by selecting fewer symbols, thereby saving time domain resources. Correspondingly, the signal quality is poor when the RSRQ is small, more symbols are selected, channel estimation can be carried out more accurately, uplink codebook selection and downlink precoding matrix calculation can be more accurate, and the accuracy of uplink decoding is increased.

The third implementation mode comprises the following steps: the signal quality parameter comprises SINR

And determining the target SINR parameter range where the SINR is positioned, and judging whether the first symbol number is matched with the target symbol number corresponding to the target parameter range.

Optionally, the SINR of the network device sending the reference signal is obtained through the bottom layer, an n-level threshold is set, and a target SINR parameter range where the SINR is located is determined through the n-level threshold, where n is an integer greater than or equal to 1.

Optionally, assuming that n is 2, the 2-level thresholds are represented as SINR _ threshold1 and SINR _ threshold2, respectively, when SINR > SINR _ threshold1 of a reference signal sent by the network device indicates that the signal quality of the reference signal is not good, at this time, SINR > SINR _ threshold1 of the reference signal corresponds to configuring SRS resources as 4 symbols; when the SINR of the transmitted reference signal satisfies that SINR _ threshold2 is not less than SINR and not more than SINR _ threshold1, it indicates that the signal quality of the terminal device is medium and can satisfy a certain transmission requirement, and at this time, the SRS resource is configured correspondingly to 2 symbols; when SINR < SINR _ threshold2 of the reference signal sent by the network device indicates that the terminal device is far away from the network device, the SRS resource is configured to be 1 symbol.

For example, the SINR parameter range and the symbol number may correspond to each other as shown in table 2 below.

TABLE 3

SINR parameter Range	Number of symbols
		SINR<SINR_threshold2	1 symbol
SINR_threshold2≤SINR≤SINR_threshold1	2 symbol
		SINR>SINR_threshold1	4 symbol

In the above implementation, the SINR is proportional to the number of symbols to be allocated, and the smaller the SINR, the smaller the number of symbols corresponding to the target SINR range in which the SINR is located; when the SINR is larger, the symbol number corresponding to the target SINR range in which the SINR is positioned is larger;

the SINR can represent the signal quality of the reference signal, so that the signal quality is poor when the SINR is larger, more symbols are selected, more channel estimation can be performed more accurately, the uplink codebook selection and the downlink precoding matrix calculation can be more accurate, and the accuracy of uplink decoding is increased. Correspondingly, the signal quality is better when the SINR is smaller, and the transmission requirement of the SRS resource can be met by selecting a smaller number of symbols, so that the time domain resource can be saved.

The fourth implementation mode comprises the following steps: the signal quality parameter comprises SNR

The fourth implementation manner is similar to the third implementation manner, and for the description of the fourth implementation manner, specific contents in the third implementation manner may be referred to, and details are not described here again.

The fifth implementation manner: the signal quality parameters include RSRP and RSRQ

And determining a target RSRQ parameter range where the RSRQ is located and a target RSRP parameter range where the RSRP is located, and judging whether the first symbol number is matched with a target symbol number corresponding to the target RSRQ parameter range and the target RSRP parameter range.

For example, the target RSRQ parameter range and the target RSRP parameter range may correspond to the number of symbols as shown in table 2 below.

TABLE 4

When both the RSRQ and the RSRP are larger, the signal quality is better, and the transmission requirement of the SRS resource can be met by selecting fewer symbols, so that the time domain resource can be saved. Correspondingly, the signal quality is poor when both the RSRQ and the RSRP are small, more symbol numbers are selected, channel estimation can be carried out more accurately, uplink codebook selection and downlink precoding matrix calculation can be more accurate, and the accuracy of uplink decoding is increased.

The sixth implementation manner: the signal quality parameters include RSRP and SINR

And determining a target SINR parameter range where the SINR is located and a target RSRP parameter range where the RSRP is located, and judging whether the first symbol number is matched with a target symbol number corresponding to the target SINR parameter range and the target RSRP parameter range.

For example, the correspondence between the target SINR parameter range and the target RSRP parameter range and the number of symbols may be as shown in table 5 below.

TABLE 5

The signal quality is better when the RSRP is larger and the SINR is smaller, and the transmission requirement of SRS resources can be met by selecting fewer symbols, so that time domain resources can be saved. Correspondingly, when the RSRP is small and the SINR is large, the signal quality is poor, more symbols are selected, channel estimation can be performed more accurately, uplink codebook selection and downlink precoding matrix calculation can be more accurate, and the accuracy of uplink decoding is increased.

205. The terminal equipment sends a resource request message to the network equipment.

Wherein the resource request message is used for requesting a target symbol number configured for the SRS resource.

The embodiment of the invention also provides an implementation mode:

the target symbol number comprises one symbol number or a plurality of symbol numbers; that is, there may be one symbol number corresponding to one target parameter range, or there may be a plurality of symbol numbers corresponding to one target parameter range.

And if the first symbol number is not consistent with the at least one symbol number, sending a resource request message to the network equipment, wherein the resource request message is specifically used for requesting any symbol number in the at least one symbol number configured for the SRS resource.

Optionally, if the first symbol number is not consistent with at least one symbol number, sending a resource request message to the network device, where the resource request message includes the following two possible cases:

in the first case: and if the first symbol number is less than at least one symbol number, sending a resource request message to the network equipment, wherein the resource request message is used for requesting the maximum symbol number in the target symbol number.

In the second case: and if the first symbol number is larger than at least one symbol number, sending a resource request message to the network equipment, wherein the resource request message is used for requesting the minimum symbol number in the target symbol number.

The first symbol number smaller than the at least one symbol number may be only the first symbol number smaller than any one of the at least one symbol number.

The embodiment of the invention also provides a method for configuring the number of SRS resource symbols, which comprises the following steps:

A. signal quality parameters of the reference signal are obtained.

B. And determining the target parameter range in which the signal quality parameter is positioned.

C1, obtaining a block error rate (BLER) of the transmitted data according to the first symbol number.

In a wireless network, one device (e.g., an eNodeB) transmits data to another device (e.g., a UE) in blocks (blocks). The transmitting end calculates a CRC using the data in the block and transmits it to the receiving end along with the block. The receiving end calculates a CRC according to the received data, compares the CRC with the received CRC, if the CRC is equal to the received CRC, the receiving end considers that the correct data is successfully received, and replies a feedback message ACK to the transmitting end; if the two are not equal, the receiving end considers that the wrong data is received and replies a feedback message 'NACK' to the transmitting end to request the transmitting end to retransmit the block. If the sending end does not receive the reply of the receiving end in a certain period, the sending end assumes that the previously sent block does not reach the receiving end, and the sending end automatically retransmits the block.

BLER, is the percentage of the erroneous block in all transmitted blocks (only the initial block is calculated).

The following are exemplary: assuming that 500 blocks of data are sent, where 499 blocks reply ACKs and 1 block replies NACKs, the BLER is 1/500-0.002 x 100% -0.2% (as can be seen from this example, the ACK/NACK for the retransmitted block is not counted when the BLER is calculated).

And D1, if BLER is larger than a first preset threshold and the first symbol number is smaller than the target symbol number, sending a resource request message to the network equipment.

In the implementation, a block error rate BLER is introduced to limit the timing of requesting for reconfiguration, and when the BLER is greater than a first preset threshold, it is indicated that a decoding result is poor, which may be caused by insufficient number of symbols for transmitting the SRS, so that it may be further determined whether the first number of symbols is less than a target number of symbols, and if the first number of symbols is less than the target number of symbols, the network device may be requested to reconfigure the number of symbols for the SRS resource at this time.

A. signal quality parameters of the reference signal are obtained.

And C2, determining the first distance between the terminal device and the network device according to the RSRP.

The terminal device may estimate a first distance between the terminal device and the network device based on the RSRP and a current transmit power of the network device.

And D2, if the difference between the first distance and the radius distance of the service cell is smaller than the preset distance difference, and the first symbol number is smaller than the target symbol number, sending a resource request message to the network equipment.

In this implementation, when the difference between the first distance and the radius distance of the serving cell is smaller than the preset distance difference, it indicates that the terminal device may be located at the edge of the cell, and at this time, the terminal device may determine whether the first symbol number is matched with the target symbol number, and request the network device to reconfigure an appropriate symbol number (i.e., the target symbol number) when the first symbol number is not matched with the target symbol number.

206. And the terminal equipment receives the resource indication sent by the network equipment.

Wherein the resource indication is used for indicating a target symbol number configured for the SRS resource.

The resource indication may be an RRC reconfiguration message or Downlink Control Information (DCI).

207. And transmitting the SRS according to the target symbol number.

The embodiment of the invention provides a method for allocating SRS resource symbol number, wherein terminal equipment acquires a signal quality parameter of a reference signal; determining a target parameter range in which the signal quality parameter is positioned; and if the first symbol number configured for the SRS resource is not matched with the target symbol number, sending a resource request message to network equipment, wherein the resource request message is used for requesting to configure the target symbol number for the SRS resource, and the target symbol number corresponds to the target parameter range. Through the scheme, the terminal equipment can determine whether the current configuration aiming at the first symbol number is matched with the target parameter range according to the target parameter range in which the signal quality parameter of the received reference signal is positioned, and if the first symbol number is not matched with the target symbol number (the target symbol number corresponds to the target parameter range), the terminal equipment can request the network equipment to configure the target symbol number aiming at the SRS resource, so that the terminal equipment can be flexibly configured with the proper symbol number according to the quality of the current reference signal of the terminal equipment.

208. The SRS is transmitted in accordance with a first number of symbols.

Under the condition that the first symbol number at the judgment part of the terminal equipment is matched with the target symbol number, the currently configured first symbol number can meet the requirement of the terminal equipment, so that the network equipment does not need to request to reconfigure the symbol number aiming at the SRS resource, and the SRS can be directly sent according to the first symbol number.

As shown in fig. 3, an embodiment of the present invention provides a terminal device, where the terminal device includes:

an obtaining module 301, configured to obtain a signal quality parameter of a reference signal; determining a target symbol number according to the signal quality parameter;

a sending module 302, configured to send a resource request message to a network device, where the resource request message is used to request that the target symbol number is configured for an SRS resource.

Optionally, the obtaining module 301 is specifically configured to determine a target parameter range in which the signal quality parameter is located, where the target symbol number corresponds to the target parameter range.

Optionally, the sending module 302 is specifically configured to send the resource request message to the network device if the first symbol number configured for the SRS resource is not matched with the target symbol number.

Optionally, the signal quality parameter includes at least one of:

reference signal received power, RSRP;

reference signal received quality, RSRQ;

signal to interference plus noise ratio (SINR) of the reference signal;

signal-to-noise ratio SNR of the reference signal.

Optionally, the target symbol number includes at least one symbol number;

the sending module 302 is specifically configured to send a resource request message to a network device if the first symbol number is inconsistent with the at least one symbol number, where the resource request message is specifically configured to request that any symbol number of the at least one symbol number is configured for an SRS resource.

The sending module 302 is specifically configured to send a resource request message to a network device if the first symbol number is smaller than the at least one symbol number, where the resource request message is used to request a maximum symbol number in the target symbol numbers.

The obtaining module 301 is further configured to obtain a block error rate BLER of data transmitted according to the first symbol number;

the sending module 302 is specifically configured to send a resource request message to a network device if the BLER is greater than a first preset threshold and the first symbol number is less than the target symbol number.

The obtaining module 301 is further configured to determine a first distance between the terminal device and the network device according to RSRP;

the sending module 302 is specifically configured to send the resource request message to the network device if the difference between the first distance and the radius distance of the serving cell is smaller than a preset distance difference, and the first symbol number is smaller than the target symbol number.

Optionally, the terminal device further includes:

a receiving module 303, configured to receive a resource indication sent by a network device, where the resource indication is used to indicate that the target symbol number is configured for an SRS resource;

the sending module 302 is specifically configured to send an SRS according to the target symbol number.

Optionally, the reference signal is a synchronization signal block SSB or a channel state information reference signal CSI-RS.

As shown in fig. 4, an embodiment of the present invention further provides a terminal device, where the terminal device may include a processor 401, a memory 402, and a computer program stored in the memory 402 and capable of running on the processor 401, and when the computer program is executed by the processor, each process executed by the terminal device in the foregoing method embodiments may be implemented, and the same technical effect may be achieved, and details are not repeated here to avoid repetition.

Fig. 5 is a schematic diagram of a hardware structure of a terminal device according to an embodiment of the present invention. The terminal device may include: radio Frequency (RF) circuitry 510, memory 520, input unit 530, display unit 540, sensor 550, audio circuitry 560, wireless fidelity (WiFi) module 570, processor 580, and power supply 590. Therein, the radio frequency circuit 510 includes a receiver 511 and a transmitter 512. Those skilled in the art will appreciate that the handset configuration shown in fig. 5 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

RF circuit 510 may be used for receiving and transmitting signals during information transmission and reception or during a call, and in particular, for processing downlink information of a base station after receiving the downlink information to processor 580; in addition, the data for designing uplink is transmitted to the base station. In general, RF circuit 510 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, RF circuit 510 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), etc.

The memory 520 may be used to store software programs and modules, and the processor 580 executes various functional applications and data processing of the mobile phone by operating the software programs and modules stored in the memory 520. The memory 520 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 520 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The input unit 530 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 530 may include a touch panel 531 and other input devices 532. The touch panel 531, also called a touch screen, can collect touch operations of a user on or near the touch panel 531 (for example, operations of the user on or near the touch panel 531 by using any suitable object or accessory such as a finger or a stylus pen), and drive the corresponding connection device according to a preset program. Alternatively, the touch panel 531 may include two parts, a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, and sends the touch point coordinates to the processor 580, and can receive and execute commands sent by the processor 580. In addition, the touch panel 531 may be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The input unit 530 may include other input devices 532 in addition to the touch panel 531. In particular, other input devices 532 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.

The display unit 540 may be used to display information input by the user or information provided to the user and various menus of the mobile phone. The display unit 540 may include a display panel 541, and optionally, the display panel 541 may be configured in the form of a Liquid Crystal Display (LCD), an organic light-Emitting diode (OLED), or the like. Further, the touch panel 531 may cover the display panel 541, and when the touch panel 531 detects a touch operation on or near the touch panel 531, the touch panel is transmitted to the processor 580 to determine the type of the touch event, and then the processor 580 provides a corresponding visual output on the display panel 541 according to the type of the touch event. Although the touch panel 531 and the display panel 541 are shown as two separate components in fig. 5 to implement the input and output functions of the mobile phone, in some embodiments, the touch panel 531 and the display panel 541 may be integrated to implement the input and output functions of the mobile phone.

The terminal device may also include at least one sensor 550, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 541 according to the brightness of ambient light, and the proximity sensor may turn off the display panel 541 and/or the backlight when the mobile phone is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

Audio circuitry 560, speaker 561, and microphone 562 may provide an audio interface between a user and a cell phone. The audio circuit 560 may transmit the electrical signal converted from the received audio data to the speaker 561, and convert the electrical signal into a sound signal by the speaker 561 for output; on the other hand, the microphone 562 converts the collected sound signals into electrical signals, which are received by the audio circuit 560 and converted into audio data, which are then processed by the audio data output processor 580, and then passed through the RF circuit 510 to be sent to, for example, another cellular phone, or output to the memory 520 for further processing.

WiFi belongs to short distance wireless transmission technology, and the mobile phone can help the user to send and receive e-mail, browse web pages, access streaming media, etc. through the WiFi module 570, which provides wireless broadband internet access for the user. Although fig. 5 shows the WiFi module 570, it is understood that it does not belong to the essential constitution of the handset, and can be omitted entirely as needed within the scope not changing the essence of the invention.

The processor 580 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 520 and calling data stored in the memory 520, thereby performing overall monitoring of the mobile phone. Alternatively, processor 580 may include one or more processing units; preferably, the processor 580 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 580.

The handset also includes a power supply 590 (e.g., a battery) for powering the various components, which may preferably be logically coupled to the processor 580 via a power management system, such that the power management system may be used to manage charging, discharging, and power consumption. Although not shown, the mobile phone may further include a camera, a bluetooth module, etc., which are not described herein.

In this embodiment of the present invention, the processor 580 is configured to obtain a signal quality parameter of the reference signal; determining a target symbol number according to the signal quality parameter;

RF circuitry 510 is configured to send a resource request message to a network device, the resource request message requesting that the target number of symbols be configured for SRS resources.

Optionally, the processor 580 is further configured to determine a target parameter range in which the signal quality parameter is located; the target number of symbols corresponds to the target parameter range.

Optionally, the RF circuit 510 is further configured to send a resource request message to the network device if the first symbol number configured for the SRS resource does not match the target symbol number.

Optionally, the signal quality parameter includes at least one of:

reference signal received power, RSRP;

reference signal received quality, RSRQ;

signal to interference plus noise ratio (SINR) of the reference signal;

signal-to-noise ratio SNR of the reference signal.

Optionally, the target symbol number includes at least one symbol number;

the processor 580 is specifically configured to send a resource request message to a network device if the first symbol number is inconsistent with the at least one symbol number, where the resource request message is specifically configured to request that any symbol number of the at least one symbol number is configured for an SRS resource.

The RF circuit 510 is specifically configured to send a resource request message to a network device if the first symbol number is less than the at least one symbol number, where the resource request message is used to request a maximum symbol number in the target symbol numbers.

Processor 580, further configured to obtain a block error rate BLER of data transmitted according to the first symbol number;

the RF circuit 510 is specifically configured to send a resource request message to a network device if the BLER is greater than a first preset threshold and the first symbol number is less than the target symbol number.

A processor 580, further configured to determine a first distance between the terminal device and a network device according to RSRP;

the RF circuit 510 is specifically configured to send the resource request message to the network device if a difference between the first distance and a serving cell radius distance is smaller than a preset distance difference, and the first symbol number is smaller than the target symbol number.

Optionally, the terminal device further includes:

a processor 580 configured to receive a resource indication sent by a network device, where the resource indication is used to indicate that the target symbol number is configured for SRS resources;

the RF circuit 510 is specifically configured to transmit an SRS according to the target symbol number.

An embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process executed by a terminal device in the foregoing method embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.

The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A method for configuring SRS resource symbol number is applied to a terminal device, and comprises the following steps:

acquiring a signal quality parameter of a reference signal;

determining a target symbol number according to the signal quality parameter;

and sending a resource request message to the network equipment, wherein the resource request message is used for requesting the target symbol number configured aiming at the SRS resource.

2. The method of claim 1, wherein determining a target number of symbols based on the signal quality parameter comprises:

and determining a target parameter range in which the signal quality parameter is positioned, wherein the target parameter range corresponds to the target symbol number.

3. The method of claim 1, wherein sending a resource request message to a network device comprises:

and if the first symbol number configured aiming at the SRS resource is not matched with the target symbol number, sending a resource request message to network equipment.

4. The method of claim 1, wherein the signal quality parameter comprises at least one of:

reference signal received power, RSRP;

reference signal received quality, RSRQ;

signal to interference plus noise ratio (SINR) of the reference signal;

signal-to-noise ratio SNR of the reference signal.

5. The method of claim 3, wherein the target number of symbols comprises at least one number of symbols;

if the first symbol number configured for the SRS resource does not match the target symbol number, sending a resource request message to the network device, including:

and if the first symbol number is not consistent with the at least one symbol number, sending a resource request message to network equipment, wherein the resource request message is specifically used for requesting any symbol number in the at least one symbol number configured for the SRS resource.

6. The method of claim 5, wherein sending a resource request message to a network device if the first number of symbols is not consistent with the at least one number of symbols comprises:

and if the first symbol number is less than the at least one symbol number, sending a resource request message to network equipment, wherein the resource request message is used for requesting the maximum symbol number in the target symbol number.

7. The method of claim 3, wherein before the sending the resource request message to the network device if the first symbol number currently configured for the SRS resource does not match the target symbol number, the method further comprises:

obtaining a block error rate (BLER) of data transmitted according to the first symbol number;

and if the BLER is greater than a first preset threshold and the first symbol number is less than the target symbol number, sending a resource request message to network equipment.

8. The method of claim 3, wherein before the transmitting the resource request message to the network device if the first symbol number configured for the SRS resource does not match the target symbol number, the method further comprises:

determining a first distance between the terminal equipment and network equipment according to the RSRP;

and if the difference between the first distance and the radius distance of the service cell is smaller than a preset distance difference and the first symbol number is smaller than the target symbol number, sending the resource request message to the network equipment.

9. The method of claim 1, wherein after sending the resource request message to the network device, the method comprises:

receiving a resource indication sent by a network device, wherein the resource indication is used for indicating that the target symbol number is configured aiming at SRS resources;

and the terminal equipment sends the SRS according to the target symbol number.

10. The method according to any of claims 1 to 9, wherein the reference signal is a synchronization signal block SSB or a channel state information reference signal CSI-RS.

11. A terminal device, comprising:

the acquisition module is used for acquiring the signal quality parameters of the reference signals; determining a target symbol number according to the signal quality parameter;

a sending module, configured to send a resource request message to a network device, where the resource request message is used to request that a target symbol number is configured for an SRS resource.

12. A terminal device, comprising: processor, memory and computer program stored on the memory and executable on the processor, which computer program, when executed by the processor, implements a method of configuring SRS resource symbol numbers as claimed in any one of claims 1 to 10.

13. A computer-readable storage medium, comprising: the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements a method of configuring a number of SRS resource symbols as claimed in any one of claims 1 to 10.