CN117997485A

CN117997485A - SRS sequence sending method, SRS sequence sending device, terminal, network equipment and system

Info

Publication number: CN117997485A
Application number: CN202211366539.XA
Authority: CN
Inventors: 贾承璐; 杨昂; 邬华明; 孙鹏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2024-05-07

Abstract

The application discloses a SRS sequence sending method, a device, a terminal, network side equipment and a system, and the SRS sequence sending method in the embodiment of the application comprises the following steps: the method comprises the steps that a terminal receives first indication information sent by network side equipment, wherein the first indication information is used for quantifying position coordinates of the terminal; and the terminal sends a first SRS sequence to the network side equipment, wherein the first SRS sequence comprises the position information of the terminal.

Description

SRS sequence sending method, SRS sequence sending device, terminal, network equipment and system

Technical Field

The application belongs to the technical field of communication, and particularly relates to a SRS sequence sending method, device, terminal, network side equipment and system.

Background

The SRS (Sounding REFERENCE SIGNAL, channel Sounding reference signal) is mainly used for estimating the channel state, so that the network side device can implement functions of positioning, beam management, time-frequency domain scheduling and the like for the terminal.

In a wireless communication scenario in which the terminal needs to frequently report the SRS sequence and its own position information to the network side device, the terminal reports the SRS sequence and its own position information to the network side terminal, so that the reporting overhead of the terminal is large.

Disclosure of Invention

The embodiment of the application provides a SRS sequence sending method, a device, a terminal, network side equipment and a system, which can reduce the reporting cost of the terminal.

In a first aspect, there is provided a SRS sequence transmission method, the method including:

the method comprises the steps that a terminal receives first indication information sent by network side equipment, wherein the first indication information is used for quantifying position coordinates of the terminal;

And the terminal sends a first SRS sequence to the network side equipment, wherein the first SRS sequence comprises the position information of the terminal.

In a second aspect, there is provided a SRS sequence transmission method, the method including:

The network side equipment sends first indication information to a terminal, wherein the first indication information is used for quantifying the position coordinates of the terminal;

the network side equipment receives a first SRS sequence sent by the terminal, wherein the first SRS sequence comprises the position information of the terminal.

In a third aspect, an SRS sequence transmitting apparatus is provided, the apparatus including:

The first receiving module is used for receiving first indication information sent by the network side equipment, and the first indication information is used for indicating the terminal to quantify the position coordinates of the terminal;

and the first sending module is used for sending a first SRS sequence to the network side equipment, wherein the first SRS sequence comprises the position information of the terminal.

In a fourth aspect, there is provided an SRS sequence transmission apparatus including:

The second sending module is used for sending first indication information to the terminal, and the first indication information is used for quantifying the position coordinates of the terminal;

And the second receiving module is used for receiving a first SRS sequence sent by the terminal, wherein the first SRS sequence comprises the position information of the terminal.

In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the SRS sequence transmission method according to the first aspect.

In a sixth aspect, a network side device is provided, including a processor and a memory, where the memory stores a program or instructions executable on the processor, and the program or instructions implement the steps of the SRS sequence transmission method according to the second aspect when executed by the processor.

In a seventh aspect, an SRS sequence transmission system is provided, including: the terminal is configured to perform the step of the SRS sequence transmission method according to the first aspect, and the network side is configured to perform the step of the SRS sequence transmission method according to the second aspect.

In an eighth aspect, there is provided a readable storage medium having stored thereon a program or instructions which, when executed by a processor, implement the steps of the SRS sequence transmission method according to the first aspect or implement the steps of the SRS sequence transmission method according to the second aspect.

In a ninth aspect, a chip is provided, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to execute a program or instructions to implement the SRS sequence transmission method according to the first aspect or implement the SRS sequence transmission method according to the second aspect.

In a tenth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the SRS sequence transmission method according to the first or second aspect.

In the embodiment of the application, the terminal embeds the position information to be reported into the SRS sequence according to the first indication information of the network side equipment to obtain the first SRS sequence, and reports the position information of the terminal and the SRS sequence for estimating the channel state to the network side equipment through the first SRS sequence, thereby reducing the reporting cost of the terminal.

Drawings

For a clearer description of embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described, it being apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

Fig. 2 is a flowchart of a method for transmitting an SRS sequence in an embodiment of the present application;

fig. 3 is a flowchart of another SRS sequence transmission method in the embodiment of the present application;

FIG. 4 is a schematic illustration of a grid map in an embodiment of the application;

FIG. 5 is a schematic view of another grid map in an embodiment of the application;

FIG. 6 is a schematic diagram of a two-level grid map in an embodiment of the application;

Fig. 7 is a flowchart of another SRS sequence transmission method in the embodiment of the present application;

FIG. 8 is a schematic diagram of a location distribution of reference points in an embodiment of the application;

fig. 9 is a block diagram of an SRS sequence transmission apparatus according to an embodiment of the present application;

Fig. 10 is a block diagram illustrating a structure of another SRS sequence transmission apparatus according to an embodiment of the present application;

fig. 11 is a block diagram of a communication device in an embodiment of the present application;

Fig. 12 is a schematic diagram of a hardware structure of a terminal in an embodiment of the present application;

Fig. 13 is a block diagram of a terminal in an embodiment of the present application;

fig. 14 is a block diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for exemplary purposes and NR terminology is used in much of the following description, but these techniques may also be applied to applications other than NR system applications, such as 6 th Generation (6G) communication systems.

Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal device 11 and a network device 12. The terminal device 11 may be a Mobile phone, a tablet Computer (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side device called a notebook, a Personal digital assistant (Personal DIGITAL ASSISTANT, PDA), a palm Computer, a netbook, an ultra-Mobile Personal Computer (UMPC), a Mobile internet appliance (Mobile INTERNET DEVICE, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home device with a wireless communication function, such as a refrigerator, a television, a washing machine, a furniture, etc.), a game machine, a Personal Computer (Personal Computer, a PC), a teller machine, a self-service machine, etc., and the wearable device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal device 11 is not limited in the embodiment of the present application. The network-side device 12 may include an access network device or a core network device, where the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function, or a radio access network element. Access network device 12 may include a base station, a WLAN access Point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access Point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a Basic service set (Basic SERVICE SET, BSS), an Extended service set (Extended SERVICE SET, ESS), a home node B, a home evolved node B, a transmission and reception Point (TRANSMITTING RECEIVING Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility MANAGEMENT ENTITY, MME), access Mobility management functions (ACCESS AND Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and Charging Rules Function (PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified DATA MANAGEMENT, UDM), unified data warehousing (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (Local NEF, or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

Aiming at the problem of large reporting cost of the terminal in the related technology, the application provides that the SRS sequence which needs to be reported by the terminal is related to the position information which needs to be reported by the terminal, and the position information which needs to be reported by the terminal is embedded into the SRS sequence which needs to be reported by the terminal, so that the terminal can report the SRS sequence containing the position information of the terminal to the network side without separately reporting the SRS sequence and the position information of the terminal, thereby reducing the reporting cost of the terminal. The SRS sequence transmission method provided by the embodiment of the present application is described in detail below through some embodiments and application scenarios thereof with reference to the accompanying drawings.

In a first aspect, referring to fig. 2, a flowchart of a method for transmitting an SRS sequence according to an embodiment of the present application may include the following steps:

step S201: the terminal receives first indication information sent by network side equipment, wherein the first indication information is used for quantifying the position coordinates of the terminal.

In the embodiment of the application, the network side equipment sends the first indication information to the terminal, and the terminal is instructed to quantize the position coordinates of the terminal, so that the data volume of the position information required to be reported to the network side equipment by the terminal is reduced. For example, the network-side device may instruct the terminal to map its own position coordinates to position coordinates of a certain reference point. It can be understood that, under the condition that the precision of the position coordinates of the reference points is smaller than that of the position coordinates acquired by the terminal, the data volume of the quantized position coordinates is smaller than that of the position coordinates which are required to be reported by the terminal, so that the reporting expense of the terminal is reduced to a certain extent. For example: the precision of the position coordinate which is originally required to be reported by the terminal is 2 bits after the decimal point, the precision of the position coordinate of the reference point is an integer (namely, the 2 bits after the decimal point are ignored), and compared with the position coordinate which is originally required to be reported by the terminal, the quantized position coordinate is less than the position coordinate which is originally required to be reported by the terminal, the 2 bits of data after the decimal point are reduced, and the reporting expense of the terminal is reduced to a certain extent.

The terminal may be the terminal device 11 in fig. 1, and for example, reference is made to the foregoing for the terminal device 11, which is not described herein.

As a possible implementation manner, the first indication information includes at least one of the following:

A-1: information indicating a grid size;

a-2: information for indicating a grid coordinate system;

a-3: information indicating the number of grids;

a-4: information indicating a quantization interval;

A-5: information indicating a quantized codebook;

A-6: information indicating the number of reference points;

a-7: information indicating position coordinates of a reference point or an identification of a reference point, the identification of the reference point being associated with the position coordinates of the reference point.

For items a-1 to a-3, the network side device may indicate, to the terminal, information of a grid size (such as a length and a width of a grid), information of a grid coordinate system (such as a rectangular coordinate system or a polar coordinate system used for calculating a position coordinate of the grid), or information of a grid number (such as a number of rows and a number of columns of the grid to be divided), so that the terminal rasterizes a position area where the terminal is located to obtain a grid map, or the terminal finds a grid map matched with the first indication information from a preconfigured grid map, and then maps a position point of the terminal to a certain grid in the grid map, and uses a position coordinate representing a position of the grid as a quantized position coordinate of the terminal, thereby realizing quantization of the position coordinate of the terminal.

For item A-4, the network side equipment can enable the terminal to uniformly quantize the position coordinates of the terminal by indicating the information of the quantization interval to the terminal. The uniform quantization means to quantize the position coordinates of the terminal at fixed quantization intervals. The quantization interval may indicate a distribution interval of the reference points in the location area of the terminal (for example, every two adjacent reference points need to be separated by 6 meters), may also indicate an area of the location area required to be covered by the grids (for example, each grid needs to cover the location area of the terminal with 6 square meters), and may also indicate a homogenization mapping rule between the location coordinates of the terminal and each reference point. It can be understood that, in order to realize uniform quantization, the distribution interval of the above-mentioned reference points in the location area of the terminal or the area of the location area covered by the grid is fixed, and based on the uniform mapping rule, the terminal can map its own location coordinate to the location coordinate of the corresponding reference point. In addition, the terminal can also report the position information in a multi-stage gridding mode by utilizing the position coordinates of the reference points. The terminal may first determine a coverage area of a reference point to which its own position coordinate belongs, that is, map its own position coordinate to a target reference point, and report the position coordinate of the target reference point or an identifier of the target reference point to the network side device. And then mapping the position coordinates of the network side equipment to the position coordinates in the coverage area of the target reference point, and reporting the position coordinates after further quantization in the coverage area of the target reference point to the network side equipment. See in particular the description of the multi-stage rasterization scheme below.

For the item A-5, the network side equipment can enable the terminal to carry out non-uniform quantization or uniform quantization on the position coordinates of the terminal by indicating the information of the quantization codebook to the terminal. Non-uniform quantization quantizes the position coordinates of the terminal at non-fixed quantization intervals, for example: larger quantization intervals are used in some location areas and smaller quantization intervals are used in other areas. The quantization codebook may indicate different distribution intervals of each reference point in the location area of the terminal, may also indicate different areas of the location area required to be covered by each grid, and may also indicate a non-uniform mapping rule between the location coordinates of the terminal and each reference point that is uniformly or non-uniformly distributed. For example, the location coordinates corresponding to the reference points 1, 2,3 and 4 are (0, 0), (0, 10), (10, 0), (10, 10), respectively, and then, based on the non-uniform mapping rule, the location coordinates (x, y) of the terminal may be mapped (x, y) to the location coordinates of the reference points 1, 2,3 or 4, and then, the location coordinates of the corresponding reference points are reported to the network side device as the location information of the terminal itself. In addition, the terminal can also report the position information in a multi-stage gridding mode by utilizing the position coordinates of the reference points indicated by the quantization codebook. Specifically, the terminal may first determine a coverage area of a reference point to which its own position coordinate belongs, that is, map its own position coordinate to a target reference point, and report the position coordinate of the target reference point or an identifier of the target reference point to the network side device. And then mapping the position coordinates of the network side equipment to the position coordinates in the coverage area of the target reference point, and reporting the position coordinates after further quantization in the coverage area of the target reference point to the network side equipment. See in particular the description of the multi-stage rasterization scheme below.

For the item A-6, the network side equipment can directly indicate the number of the reference points to the terminal, so that the terminal can automatically determine the distribution positions of the reference points according to the size of the position area of the terminal, or find a matched reference point distribution map from a pre-configured reference point distribution map, and further realize the quantification of position coordinates.

For item A-7, the network side device can directly indicate the position coordinates or the identification of the reference point to the terminal, so that the terminal maps the position coordinates of the network side device to the position coordinates of a certain reference point, and the quantification of the position coordinates is realized. In addition, the terminal can also report the position information in a multi-stage gridding mode by utilizing the position coordinates of the reference points. Specifically, the terminal may first determine a coverage area of a reference point to which its own position coordinate belongs, that is, map its own position coordinate to a target reference point, and report the position coordinate of the target reference point or an identifier of the target reference point to the network side device. And then mapping the position coordinates of the network side equipment to the position coordinates in the coverage area of the target reference point, and reporting the position coordinates after further quantization in the coverage area of the target reference point to the network side equipment. See in particular the description of the multi-stage rasterization scheme below. Wherein the identity of the reference point is associated with the position coordinates of the reference point, one reference point has one identity (i.e. ID), and the reference point corresponds to one position coordinate.

Step S202: and the terminal sends a first SRS sequence to the network side equipment, wherein the first SRS sequence comprises the position information of the terminal.

In the implementation, the terminal determines the quantized position coordinates as position information required to be reported, then embeds the position information into a second SRS sequence which is originally required to be reported to network side equipment to obtain a first SRS sequence, and sends the first SRS sequence containing the position information to the network side equipment to realize simultaneous reporting of the position information and the SRS sequence for estimating the channel state, so that reporting cost of the terminal is reduced.

As a possible implementation manner, before the terminal sends the first SRS sequence to the network side device, the method further includes:

The terminal quantifies the position coordinates of the terminal to obtain quantified position coordinates;

And the terminal circularly shifts the second SRS sequence according to the quantized position coordinates to obtain the first SRS sequence.

SRS sequences are designed based on Zadoff-Chu (ZC) sequences, and due to the special properties of ZC sequences, the sequences, in particular the uplink transmission direction, are used in multiple places in NR standards. The present application is based on one of the properties of ZC sequences: zero-correlation with the original sequence by any non-zero cyclic shift in the time domain, i.e. the two sequence signals generated by the same ZC sequence by different cyclic shifts in the time domain are orthogonal (the cyclic shift in the time domain corresponds to continuous phase rotation in the frequency domainM is the sequence length, and Δ is the cyclic shift parameter), the second SRS sequence may be designed based on the ZC sequence, and the second SRS sequence may be cyclically shifted according to the quantized position coordinates, so that different position coordinates may correspond to different first SRS sequences (each first SRS sequence is orthogonal to each other), and the terminal may further implement simultaneous reporting of the position information and the SRS sequence by sending the first SRS sequence to the network side device.

Wherein, a ZC sequence with length M can be defined as follows:

Based on the above formula, for a ZC sequence with length M, the value z _i ^u of the ith bit is determined by the root index u, that is, a ZC sequence with fixed length M, and there are partial root indexes capable of generating ZC sequences with unique values, where the number of the partial root indexes is equal to the integer number of the M.

In the case that there are multiple terminals (i.e., multiplexing of SRS multiple terminals), the network side device may send different SRS identification information (i.e., SRS ID) to different terminals, where the different SRS identification information is used to indicate different root sequences, where the root sequences are ZC sequences, the second SRS sequence is designed based on the root sequences (which may be root sequences carrying network configuration parameters and/or SRS port numbers), and the SRS ID may be determined according to a root index of the root sequences. Each terminal determines a respective second SRS sequence according to the respective received SRS ID. After receiving a first SRS sequence sent by a certain terminal, the network side equipment analyzes a cyclic shift parameter value from the first SRS sequence according to the root sequence of the terminal, and then determines quantized position coordinates of the terminal according to the cyclic shift parameter value.

As a possible implementation manner, the terminal receives second indication information sent by the network side device, where the second indication information includes at least one of the following: port information, where the port information is used to instruct the terminal to send a port of the first SRS sequence; position reporting information, wherein the position reporting information is used for indicating a reporting mode of the position information of the terminal; or alternatively

The terminal sends information to the network side equipment, wherein the information comprises at least one of the following: port information, wherein the port information comprises a port of the first SRS sequence; and the position reporting information comprises a reporting mode of the position information of the terminal.

In a specific implementation, a manner of configuring a transmission port of the first SRS sequence for the terminal by the network side device, or a manner of reporting the transmission port of the first SRS sequence to the network side device by the terminal (because the transmission port of the SRS is basically unchanged, only needs to be reported once in general) is adopted to ensure that the network side device knows that the terminal reports the transmission port of the first SRS sequence, so that a subsequent terminal may not carry an SRS port number or carry a fixed SRS port number known by the network side device when transmitting the first SRS sequence (i.e. a second SRS sequence designed based on the root sequence may not be associated with the SRS port number). The terminal can carry out cyclic shift on a second SRS sequence which is originally required to be reported to network side equipment according to the quantized position coordinates to obtain a first SRS sequence, and the first SRS sequence is sent to the network side equipment; and the network side equipment then analyzes the first SRS sequence according to the known network configuration parameters and the SRS port number to obtain quantized position coordinates reported by the terminal.

The network side device configures a reporting mode of the position information for the terminal, or the terminal reports the reporting mode of the position information to the network side device, so that the network side device can know the relation between the position information carried by the first SRS sequence received each time and the position coordinates quantized by the terminal, and further can analyze the specific value of the position coordinates quantized by the terminal from the first SRS sequences received for many times.

Wherein, the reporting mode comprises at least one of the following:

A first mode, the first mode refers to: the terminal overlaps the first SRS sequences corresponding to each dimension of the quantized position coordinates of the terminal, and sends the overlapped SRS sequences to the network side equipment;

A second mode, the second mode means: the terminal sends the SRS sequences obtained after superposition to the network side equipment in N SRS periods, or the terminal sends first SRS sequences corresponding to each dimension of the quantized position coordinates of the terminal to the network side equipment in N SRS periods, wherein N is an integer greater than or equal to 1;

a multi-stage rasterization scheme, which refers to: the terminal transmits the first SRS sequences corresponding to the dimensions of the position coordinates of the terminal quantized under different grid sizes for multiple times, and the terminal transmits the first SRS sequences corresponding to the dimensions of the position coordinates of the terminal quantized under one grid size each time.

Taking two first SRS sequences (r 1 and r2, where the dimension where m is located corresponds to r1, and the dimension where n is located corresponds to r 2) corresponding to the quantized two-dimensional position coordinates (m, n) of the terminal as an example. If the reporting mode is the first mode, the terminal transmits the SRS sequence obtained after superposition (i.e. reporting the position information in a superposition coding mode such as r1+r2 or r1-r 2) to the network side device. When the reporting mode is the second mode, the terminal reports the position information to the network side equipment in 2 SRS periods (namely, reports the position information in a time division multiplexing mode), the position information reported in the 1 st SRS period is carried by a first SRS sequence r1, and the position information reported in the 2 nd SRS period is carried by a first SRS sequence r 2; or the position information reported by the 1 st SRS period is carried by r1+r2, and the position information reported by the 2 nd SRS period is carried by r2-r 1. It can be understood that, when the position coordinates are at least two dimensions, the terminal may select the second mode of superposition coding in a part of SRS periods when reporting position information in multiple SRS periods, so as to transmit the SRS sequence obtained after superposition (for example, the 1 st SRS period transmits r1+r2), and switch to the second mode of transmitting in the other part of periods to transmit the first SRS sequence corresponding to the part of dimensions (for example, the 2 nd SRS period transmits r 1). For the multi-stage rasterization mode, the terminal sends the first SRS sequences corresponding to each dimension of the quantized position coordinates under different raster sizes to the network side equipment respectively, so that the network side equipment is prevented from confusing the quantized position coordinates under different raster sizes in the process of analyzing the SRS sequences.

As can be seen from the above steps, in the embodiment of the present application, the terminal embeds the position information to be reported into the SRS sequence according to the first indication information of the network side device to obtain the first SRS sequence, and reports the position information of the terminal and the SRS sequence for estimating the channel state to the network side device through the first SRS sequence, thereby reducing the reporting overhead of the terminal.

Embodiment one

This embodiment describes a case where the terminal quantizes the position coordinates based on the grid. An embodiment one will be described below with reference to fig. 3. As shown in fig. 3, the interaction between the terminal and the network side device includes the following steps:

step S301: the network side equipment sends first indication information to the terminal.

Before the terminal performs the rasterization, the network side device may first send, to the terminal, area map information including a location area where the terminal is located (the area map information may be a location map of a cell where the terminal is located), and then instruct the terminal to rasterize the area map information (i.e., the location area where the terminal is located) through the first instruction information, so as to quantify its own location coordinate.

Step S302: and the terminal divides the position area where the terminal is positioned into a plurality of grids according to the first indication information.

For example, the position coordinates of the terminal may be expressed as (x, y), and the terminal performs quantization processing on (x, y) in order to reduce the reporting overhead of the terminal. Fig. 4 is a schematic diagram of the obtained grid map after the terminal rasterizes the location area of the terminal. Each grid in the grid map has a size of l×w, i.e., a length of L and a width of W, and a grid number of N ₁*N₂ (i.e., 4*8). Taking the position coordinates of the center point of the grid in the grid map as the position coordinates of the reference points in the grid, it is understood that the position coordinates of any point in the grid can be taken as the position coordinates of the reference points in the grid when the method is implemented. At this time, the range of the abscissa of the position area where the terminal is located is quantized to {0,1, …, N ₁ -1}, and the range of the ordinate is quantized to {0,1, …, N ₂ -1}.

It can be understood that the coordinate system used by the terminal to build the grid map is not limited in the present application, and the terminal may build the grid map shown in fig. 4 based on a rectangular coordinate system to implement uniform quantization, or may build the grid map shown in fig. 5 based on a polar coordinate system (i.e., (θ, r)) to implement non-uniform quantization. And under the condition that the terminal is configured with a multi-stage rasterization mode, the terminal can also be used for combining the raster maps under different coordinate systems, such as polar coordinate system raster maps and rectangular coordinate system raster maps with different sizes, so as to realize the quantification of the position coordinates of the terminal.

Step S303: and the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the target grids according to the distances between the position coordinates of the reference points in the grids and the position coordinates of the terminal.

The terminal can map its own position coordinate to the reference point position coordinate (i, j) in the corresponding grid in the grid map, that is, the reference point position coordinate (1, 1) in fig. 4, by calculating the distance between its own position and the center point position of each grid. It will be appreciated that the reference point position coordinates within each grid in the grid map may be the position coordinates of the center point within the grid or the position coordinates of any point within the grid.

The reference point coordinates (i, j) can be determined by the following formula:

Where (x _i,y_i) represents the position coordinates of the reference point of the ith grid in the grid map.

Step S304: and the terminal circularly shifts the second SRS sequence according to the position coordinates after the rasterization to obtain a first SRS sequence, and sends the first SRS sequence to the network side equipment.

After the quantized position coordinates are obtained, the terminal can determine a first cyclic shift parameter value corresponding to a first dimension of the quantized position coordinates according to the value corresponding to the first dimension; and performing cyclic shift on the second SRS sequence according to the first cyclic shift parameter value to obtain a first SRS sequence corresponding to the first dimension. For example, the terminal may directly use the quantized value of the position coordinate as the number of bits that the second SRS sequence needs to be cyclically shifted, and embed the quantized value into the SRS sequence for transmission.

In particular implementations, each dimension of the quantized position coordinates corresponds to a cyclically shifted SRS sequence. Taking the quantized position coordinates (m, n) as an example, the cyclic shift in the time domain corresponds to the continuous phase rotation in the frequency domain, and m corresponds to the first SRS sequence r _m with the phase rotation α _m and n corresponds to the first SRS sequence r _n with the phase rotation α _n.

For α _m and α _n, which characterize the phase rotation amounts, the two are determined in a similar manner, taking α _m as an example, which can be determined by the following formula:

Wherein, For the maximum cyclic shift length supported by the first SRS sequence, m is the value of the abscissa in the quantized position coordinates (m, n).

It can be appreciated that the reporting manner of the location information of the terminal may be equal to the maximum cyclic shift length supported by the first SRS sequence. Specifically, the following two cases can be distinguished:

first case: maximum cyclic shift length supported by the first SRS sequence Greater than the abscissa maximum N1 or the ordinate maximum N2 of the grid map (i.e. the quantized position coordinates).

As a possible implementation manner, the quantized two-dimensional position information in two dimensions of the two-dimensional position coordinate may be distinguished by a time division multiplexing manner, for example, r _m is transmitted in the first SRS period, and r _n is transmitted in the second SRS period.

As another possible implementation manner, after the first SRS sequences corresponding to the position information in the two dimensions are overlapped together by using an superposition coding manner, the overlapped SRS sequences r _m,n＝r_m+r_n are sent on the same SRS port and the same time-frequency resource. At this time, the SRS signal sequence received by the network side is as follows:

y＝H(r_m+r_n)+w

Assuming that the terminal and the network side device communicate through an AWGN (ADDITIVE WHITE Gaussian Noise) channel, w is white Gaussian Noise, and H is a channel matrix. Due to orthogonality between the cyclically shifted SRS sequences, in the case that the root index is known (the root index may be calculated according to parameters configured by the network side device), the existence of r _m,r_n may be detected from the received SRS sequences according to the correlation, for example: according to the root index, the network side device can obtain the cyclic shift condition of the SRS sequence, and form a matrix according to columns, wherein the matrix S is expressed as follows:

S＝[s₀,s₁,...,s_z]

Where s _z denotes the first SRS sequence after cyclic shift by z bits. And obtaining the corresponding position coordinates (m, n) by finding the subscripts of the two maximum values in S ^H y.

As a further possible implementation manner, the position information may also be reported by a time division multiplexing+superposition coding manner: if r _n is transmitted in the first SRS period, r _n+r_m is transmitted in the second SRS period; or r _n-r_m is transmitted in the first SRS period and r _n+r_m is transmitted in the second SRS period.

Second case: maximum cyclic shift length supported by the first SRS sequenceLess than the abscissa maximum N1 or the ordinate maximum N2 of the quantized position coordinates.

At this time, the position information may be reported by the mode of hierarchical rasterization, superposition coding and time division multiplexing, as shown in fig. 6, which is a schematic diagram of a two-level raster map, and the steps for reporting the position information by the terminal are as follows:

(1) First stage rasterization transmission: the coarse resolution grid (the grid with the size W x L shown in figure 6) is adopted, so that the number of the grids can be reduced, and N1 and N2 are smaller than When the terminal reports the position information, the first SRS sequences corresponding to the two dimensions of the position coordinate may be superimposed together and sent in the 1 st SRS period, that is, the position coordinate (1, 1) of the reference point in the grid in fig. 6 is sent to the network side device.

(2) Second stage rasterized transmission: finer grids (grids of size (W/4) x (L/4) as shown in fig. 6) are further divided within the target grids corresponding to the position coordinates (1, 1) to ensure that N1 and N2 are smaller thanWhen the terminal reports the position information, the first SRS sequences corresponding to the two dimensions of the position coordinate may be superimposed together and sent in the second SRS period, that is, the position coordinates (2, 2) of the reference point in the grid in fig. 6 are sent to the network side device. The network side equipment can obtain the complete position information reported by the terminal by combining the position coordinates in the two SRS periods, and the repeated sending of the SRS is also beneficial to improving the quality of channel estimation.

Second embodiment

The present embodiment describes a case where the terminal quantizes the position coordinates based on the reference point. The second embodiment will be described below with reference to fig. 7. As shown in fig. 7, the interaction between the terminal and the network side device includes the following steps:

Step S701: the network side equipment sends first indication information to the terminal.

Step S702: and the terminal determines the position areas respectively represented by the multiple reference points according to the first indication information sent by the network side equipment.

Step S703: and the terminal determines a reference point of a position area which characterizes the position coordinate of the terminal as a target reference point.

Step S704: and the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the position area characterized by the target reference point.

As shown in fig. 8, a schematic diagram of the position distribution of the reference points (including reference points 0 and 1) is shown, where the network side device indicates the position distribution of each reference point to the terminal through the first indication information, so that the terminal determines the reference point to which the terminal belongs according to its own position. It will be appreciated that for the location distribution of the different reference points, the determination may be made in a uniform/non-uniform quantization manner.

Step S705: and the terminal circularly shifts the second SRS sequence according to the position coordinates of the target reference point to obtain a first SRS sequence, and sends the first SRS sequence to the network side equipment.

As a possible implementation manner, in the case that the reporting manner includes a multi-stage rasterization manner, the terminal may determine, according to the first indication information, a location area represented by each of the plurality of reference points; the terminal determines a reference point representing a position area to which the position coordinates of the terminal belong as a target reference point; the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the position area represented by the target reference points to obtain the quantized position coordinates of the terminal under the first-stage grid size; the terminal divides the position area represented by the target reference point into a plurality of grids according to the first indication information; and the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the target grids in the grids according to the distances between the position coordinates of the reference points in the grids and the position coordinates of the terminal, so as to obtain the quantized position coordinates of the terminal under the second-stage grid size.

In the implementation, the terminal may report the ID of the reference point (i.e., the target reference point) to which the terminal belongs to the network side device, and then report the position coordinates after rasterization. After determining the target reference point, the terminal may also send the identifier of the currently determined target reference point to the network side device when the identifier of the currently determined target reference point is different from the identifier of the target reference point determined last time. It can be understood that, since the movement of the terminal has continuity, that is, the ID of the target reference point of the terminal is not frequently switched, the terminal can inform the ID of the target reference point after the network side device is switched only when the ID of the target reference point is switched.

In a second aspect, as shown in fig. 8, an embodiment of the present application provides another SRS sequence transmission method, where the method at least includes the following steps:

step S801: the network side equipment sends first indication information to a terminal, wherein the first indication information is used for quantifying the position coordinates of the terminal;

step S802: the network side equipment receives a first SRS sequence sent by the terminal, wherein the first SRS sequence comprises the position information of the terminal.

In the embodiment of the present application, the Network side device may be an access Network device in fig. 1, such as a base station or an artificial intelligence processing node newly defined at the access Network side, or may be a core Network device in fig. 1, such as a Network DATA ANALYTICS Function (NWDAF), a location management Function (Location Management Function, LMF), or a processing node newly defined at the core Network side, or may be a combination of the above multiple nodes.

Information indicating a grid size;

information for indicating a grid coordinate system;

Information indicating the number of grids;

information indicating a quantization interval;

information indicating a quantized codebook;

Information indicating the number of reference points;

information indicating the position coordinates of the reference point.

As a possible implementation manner, the method further comprises:

The network side equipment sends second indication information to the terminal, wherein the second indication information comprises at least one of the following items: port information, where the port information is used to instruct the terminal to send a port of the first SRS sequence; position reporting information, wherein the position reporting information is used for indicating a reporting mode of the position information of the terminal; or alternatively

The network side equipment receives information sent by the terminal, wherein the information comprises at least one of the following items: port information, wherein the port information comprises a port of the first SRS sequence; and the position reporting information comprises a reporting mode of the position information of the terminal.

As a possible implementation manner, the reporting manner includes at least one of the following:

As a possible implementation manner, the method further comprises:

the network side equipment receives an identification of a target reference point sent by the terminal, wherein the target reference point is used for representing a position area to which the position coordinate of the terminal belongs.

As a possible implementation manner, the method further comprises:

The network side equipment sends SRS identification information to the terminal, wherein the SRS identification information is used for indicating a root sequence, the root sequence is used for determining a second SRS sequence, and the first SRS sequence is obtained by circularly shifting the second SRS sequence according to quantized position coordinates of the terminal.

As a possible implementation manner, the method further comprises:

The network side equipment analyzes a cyclic shift parameter value from the first SRS sequence according to the root sequence;

and the network side equipment determines quantized position coordinates of the terminal according to the cyclic shift parameter value.

The description of the SRS sequence transmission method performed by the network side device may be referred to the foregoing, and will not be repeated herein.

As a possible implementation manner, the method further comprises:

The network side equipment carries out channel estimation according to the first SRS sequence to obtain channel state information;

And the network side equipment generates a training sample according to the channel state information and the quantized position coordinates of the terminal, and the training sample is used for training out a terminal positioning model.

It can be understood that in the existing process of making the training sample of the terminal positioning model, since the terminal separately reports the position information and the SRS sequence to the network side device, the network side device needs to match the position information and the SRS sequence based on the time stamp after receiving the two sequences, and because the terminal moves continuously, the accurate matching between the position information and the SRS sequence cannot be ensured based on the matching mode of the time stamp.

By reporting the position information and the SRS to the network side equipment together, the SRS sequence sending method reduces the reporting expense of the terminal, so that the terminal does not need to report the position information and the corresponding time stamp information. And the data processing cost of the network side equipment is reduced, the network side equipment can estimate and obtain the channel state information through the first SRS sequence, and can obtain the position information of the terminal at the same time, so that the network side equipment does not need to match the channel state information with the position label according to the timestamp information, the risk of mismatching the channel state information with the position label can be reduced, and the quality of training samples is improved.

According to the SRS sequence sending method provided by the embodiment of the application, the execution main body can be the SRS sequence sending device. In the embodiment of the present application, an SRS sequence transmission apparatus is described by taking an SRS sequence transmission method performed by the SRS sequence transmission apparatus as an example.

In a third aspect, an embodiment of the present application provides an SRS sequence transmission apparatus, where the apparatus may be applied to a terminal, as shown in fig. 9, and the SRS sequence transmission apparatus 100 includes:

A first receiving module 101, configured to receive first indication information sent by a network side device, where the first indication information is used to instruct a terminal to quantize a position coordinate of the terminal;

and the first sending module 102 is configured to send a first SRS sequence to the network side device, where the first SRS sequence includes location information of the terminal.

Optionally, before the terminal sends the first SRS sequence to the network side device, the apparatus further includes:

The first processing module is used for quantizing the position coordinates of the terminal to obtain quantized position coordinates;

And the second processing module is used for circularly shifting the second SRS sequence according to the quantized position coordinates to obtain the first SRS sequence.

Optionally, the first processing module includes:

the first processing submodule is used for dividing the position area where the terminal is positioned into a plurality of grids according to the first indication information;

And the second processing submodule is used for mapping the position coordinates of the terminal to the position coordinates of the reference points in the target grids according to the distances between the position coordinates of the reference points in the grids and the position coordinates of the terminal.

Optionally, the first processing module includes:

the third processing sub-module is used for determining the position areas respectively represented by the plurality of reference points according to the first indication information;

A fourth processing sub-module, configured to determine, as a target reference point, a reference point representing a location area to which a location coordinate of the terminal itself belongs;

and a fifth processing sub-module, configured to map the position coordinates of the terminal itself to the position coordinates of the reference point in the position area characterized by the target reference point.

Optionally, the second processing module includes:

A sixth processing sub-module, configured to determine a first cyclic shift parameter value corresponding to a first dimension according to a value corresponding to the first dimension of the quantized position coordinate;

And a seventh processing sub-module, configured to perform cyclic shift on the second SRS sequence according to the first cyclic shift parameter value, to obtain a first SRS sequence corresponding to the first dimension.

Optionally, the first indication information includes at least one of:

Information indicating a grid size;

information for indicating a grid coordinate system;

Information indicating the number of grids;

information indicating a quantization interval;

information indicating a quantized codebook;

Information indicating the number of reference points;

information indicating the position coordinates of the reference point.

Optionally, the apparatus further comprises:

The third receiving module is configured to receive second indication information sent by the network side device, where the second indication information includes at least one of the following: port information, where the port information is used to instruct the terminal to send a port of the first SRS sequence; position reporting information, wherein the position reporting information is used for indicating a reporting mode of the position information of the terminal;

Or alternatively

A third sending module, configured to send information to the network side device, where the information includes at least one of the following: port information, wherein the port information comprises a port of the first SRS sequence; and the position reporting information comprises a reporting mode of the position information of the terminal.

Optionally, the reporting mode includes at least one of the following:

Optionally, in the case that the reporting manner includes a multi-stage rasterization manner, before the terminal sends the first SRS sequence to the network side device, the apparatus further includes:

the third processing module is used for determining the position areas respectively represented by the plurality of reference points according to the first indication information;

the fourth processing module is used for determining a reference point of a position area which characterizes the position coordinate of the terminal as a target reference point;

A fifth processing module, configured to map a position coordinate of the terminal to a position coordinate of a reference point in a position area represented by the target reference point, so as to obtain a position coordinate of the terminal after quantization under a first-stage grid size;

A sixth processing module, configured to divide, according to the first indication information, a location area represented by the target reference point into a plurality of grids;

And a seventh processing module, configured to map, according to distances between the position coordinates of the reference points in the multiple grids and the position coordinates of the terminal itself, the position coordinates of the terminal itself to the position coordinates of the reference points in the target grids in the multiple grids, so as to obtain the position coordinates of the terminal after quantization under the second-stage grid size.

Optionally, after determining the target reference point, the terminal further includes:

And the eighth processing module is used for sending the identification of the currently determined target reference point to the network side equipment when the identification of the currently determined target reference point is different from the identification of the last determined target reference point.

Optionally, the apparatus further comprises:

a fourth receiving module, configured to receive SRS identification information sent by the network side device, where the SRS identification information is used to indicate a root sequence;

and a ninth processing module, configured to determine the second SRS sequence according to the SRS identification information.

The SRS sequence transmitting apparatus provided by the embodiment of the present application can implement each process implemented by the embodiment of the SRS sequence transmitting method described in the first aspect, and achieve the same technical effect, so that repetition is avoided, and no description is repeated here.

In a fourth aspect, an embodiment of the present application provides another SRS sequence transmission apparatus, where the apparatus may be applied to a network side device, as shown in fig. 10, where the SRS sequence transmission apparatus 200 includes:

a second sending module 201, configured to send first indication information to a terminal, where the first indication information is used to quantify a position coordinate of the terminal;

The second receiving module 202 is configured to receive a first SRS sequence sent by the terminal, where the first SRS sequence includes location information of the terminal.

Optionally, the first indication information includes at least one of:

Information indicating a grid size;

information for indicating a grid coordinate system;

Information indicating the number of grids;

information indicating a quantization interval;

information indicating a quantized codebook;

Information indicating the number of reference points;

information indicating the position coordinates of the reference point.

Optionally, the apparatus further comprises:

a fifth sending module, configured to send second indication information to the terminal, where the second indication information includes at least one of the following: port information, where the port information is used to instruct the terminal to send a port of the first SRS sequence; position reporting information, wherein the position reporting information is used for indicating a reporting mode of the position information of the terminal;

Or alternatively

A fifth receiving module, configured to receive information sent by the terminal, where the information includes at least one of the following: port information, wherein the port information comprises a port of the first SRS sequence; and the position reporting information comprises a reporting mode of the position information of the terminal.

Optionally, the reporting mode includes at least one of the following:

Optionally, the apparatus further comprises:

And the sixth receiving module is used for receiving the identification of the target reference point sent by the terminal, wherein the target reference point is used for representing the position area to which the position coordinate of the terminal belongs.

Optionally, the apparatus further comprises:

And a sixth sending module, configured to send SRS identification information to the terminal, where the SRS identification information is used to indicate a root sequence, the root sequence is used to determine a second SRS sequence, and the first SRS sequence is obtained by performing cyclic shift on the second SRS sequence according to quantized position coordinates of the terminal.

Optionally, the apparatus further comprises:

a tenth processing module, configured to parse a cyclic shift parameter value from the first SRS sequence according to the root sequence;

and an eleventh processing module, configured to determine quantized position coordinates of the terminal according to the cyclic shift parameter value.

Optionally, the apparatus further comprises:

a twelfth processing module, configured to perform channel estimation according to the first SRS sequence, to obtain channel state information;

and a thirteenth processing module, configured to generate a training sample according to the channel state information and the quantized position coordinates of the terminal, where the training sample is used to train out a terminal positioning model.

The SRS sequence transmitting apparatus provided in the embodiment of the present application can implement each process implemented by the embodiment of the SRS sequence transmitting method described in the second aspect, and achieve the same technical effect, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 11, an embodiment of the present application further provides a communication device 900, including a processor 901 and a memory 902, where the memory 902 stores a program or an instruction that can be executed on the processor 901, for example, when the communication device 900 is a terminal, the program or the instruction is executed by the processor 901 to implement each step of the embodiment of the SRS sequence transmission method described in the first aspect, and the same technical effect can be achieved, and when the communication device 900 is a network side device, the program or the instruction is executed by the processor 901 to implement each step of the embodiment of the SRS sequence transmission method described in the second aspect, and the same technical effect can be achieved. In order to avoid repetition, a description thereof is omitted.

As shown in fig. 12, a schematic hardware structure of a terminal for implementing an embodiment of the present application is shown.

The terminal 1000 is configured to execute the steps of the SRS sequence transmission method embodiment described in the first aspect, and achieve the same technical effects. The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 12 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be appreciated that in embodiments of the present application, the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042, where the graphics processor 10041 processes image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first memory area storing programs or instructions and a second memory area storing data, wherein the first memory area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static random access memory (STATIC RAM, SRAM), dynamic random access memory (DYNAMIC RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate Synchronous dynamic random access memory (Double DATA RATE SDRAM, DDRSDRAM), enhanced Synchronous dynamic random access memory (ENHANCED SDRAM, ESDRAM), synchronous link dynamic random access memory (SYNCH LINK DRAM, SLDRAM), and Direct random access memory (DRRAM). Memory 1009 in embodiments of the application includes, but is not limited to, these and any other suitable types of memory.

The processor 1010 may include one or more processing units; optionally, the processor 1010 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, and the like, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

The embodiment of the present application further provides a terminal, as shown in fig. 13, the terminal 1100 includes: an antenna 111, a radio frequency device 112, a baseband device 113, a processor 114 and a memory 115. The antenna 111 is connected to a radio frequency device 112. In the uplink direction, the radio frequency device 112 receives information via the antenna 111, and transmits the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes information to be transmitted, and transmits the processed information to the radio frequency device 112, and the radio frequency device 112 processes the received information and transmits the processed information through the antenna 111.

The SRS sequence transmission method performed by the terminal in the above embodiment may be implemented in the baseband apparatus 113, and the baseband apparatus 113 includes a baseband processor.

The baseband apparatus 113 may, for example, include at least one baseband board, where a plurality of chips are disposed on the baseband board, as shown in fig. 10, where one chip, for example, a baseband processor, is connected to the memory 115 through a bus interface, so as to call a program in the memory 115, and perform the network device operation shown in the embodiment of the SRS sequence transmission method of the first aspect.

The terminal may also include a network interface 116, such as a common public radio interface (common public radio interface, CPRI).

Specifically, the terminal 1100 of the embodiment of the present invention further includes: instructions or programs stored in the memory 115 and executable on the processor 114, the processor 114 invokes the instructions or programs in the memory 115 to perform the SRS sequence transmission method according to the first aspect and achieve the same technical effects, so that repetition is avoided and thus a description thereof is omitted.

The embodiment of the application also provides network side equipment. As shown in fig. 14, the network side device 1200 includes: a processor 1201, a network interface 1202, and a memory 1203. The network interface 1202 is, for example, a common public radio interface (common public radio interface, CPRI).

Specifically, the network side device 1200 of the embodiment of the present invention further includes: instructions or programs stored in the memory 1203 and executable on the processor 1201, the processor 1201 invokes the instructions or programs in the memory 1203 to perform the SRS sequence transmission method according to the second aspect and achieve the same technical effects, and are not described herein in detail for avoiding repetition.

The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above embodiment of the SRS sequence transmission method, and can achieve the same technical effect, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal device described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, which comprises a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is used for running a program or instructions to realize each process of the embodiment of the SRS sequence sending method, and the same technical effect can be achieved, so that repetition is avoided, and the description is omitted here.

It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.

The embodiment of the present application further provides a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above embodiment of the SRS sequence transmission method, and the same technical effect can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the application also provides a SRS sequence sending system, which comprises the following steps: the terminal is configured to perform the step of the SRS sequence transmission method according to the first aspect, and the network side is configured to perform the step of the SRS sequence transmission method according to the second aspect.

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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.

Claims

1. A method for transmitting an SRS sequence, the method comprising:

2. The method of claim 1, wherein before the terminal transmits the first SRS sequence to the network side device, the method further comprises:

3. The method according to claim 2, wherein the terminal quantizes the position coordinates of the terminal to obtain quantized position coordinates, comprising:

the terminal divides the position area where the terminal is located into a plurality of grids according to the first indication information;

And the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the target grids according to the distances between the position coordinates of the reference points in the grids and the position coordinates of the terminal.

4. The method according to claim 2, wherein the terminal quantizes the position coordinates of the terminal to obtain quantized position coordinates, comprising:

the terminal determines the position areas respectively represented by the multiple reference points according to the first indication information;

the terminal determines a reference point representing a position area to which the position coordinates of the terminal belong as a target reference point;

The terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the position area characterized by the target reference point.

5. The method of claim 2, wherein the terminal cyclically shifts a second SRS sequence according to the quantized position coordinates to obtain the first SRS sequence, and the method comprises:

the terminal determines a first cyclic shift parameter value corresponding to a first dimension of the quantized position coordinates according to the value corresponding to the first dimension;

And the terminal performs cyclic shift on the second SRS sequence according to the first cyclic shift parameter value to obtain a first SRS sequence corresponding to the first dimension.

6. The method of claim 1, wherein the first indication information comprises at least one of:

Information indicating a grid size;

information for indicating a grid coordinate system;

Information indicating the number of grids;

information indicating a quantization interval;

information indicating a quantized codebook;

Information indicating the number of reference points;

information indicating position coordinates of a reference point or an identification of a reference point, the identification of the reference point being associated with the position coordinates of the reference point.

7. The method according to claim 1, wherein the method further comprises:

the terminal receives second indication information sent by the network side equipment, wherein the second indication information comprises at least one of the following items: port information, where the port information is used to instruct the terminal to send a port of the first SRS sequence; position reporting information, wherein the position reporting information is used for indicating a reporting mode of the position information of the terminal; or alternatively

8. The method of claim 7, wherein the reporting means comprises at least one of:

9. The method of claim 8, wherein, in a case where the reporting manner includes a multi-stage rasterization manner, before the terminal sends the first SRS sequence to the network side device, the method further includes:

The terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the position area represented by the target reference points to obtain the quantized position coordinates of the terminal under the first-stage grid size;

the terminal divides the position area represented by the target reference point into a plurality of grids according to the first indication information;

And the terminal maps the position coordinates of the terminal to the position coordinates of the reference points in the target grids in the grids according to the distances between the position coordinates of the reference points in the grids and the position coordinates of the terminal, so as to obtain the quantized position coordinates of the terminal under the second-stage grid size.

10. The method according to claim 4 or 9, wherein the terminal, after determining the target reference point, further comprises:

And when the identification of the currently determined target reference point is different from the identification of the last determined target reference point, the terminal sends the identification of the currently determined target reference point to the network side equipment.

11. The method according to any one of claims 2-9, further comprising:

The terminal receives SRS identification information sent by the network side equipment, wherein the SRS identification information is used for indicating a root sequence;

And the terminal determines the second SRS sequence according to the SRS identification information.

12. A method for transmitting an SRS sequence, the method comprising:

13. The method of claim 12, wherein the first indication information comprises at least one of:

Information indicating a grid size;

information for indicating a grid coordinate system;

Information indicating the number of grids;

information indicating a quantization interval;

information indicating a quantized codebook;

Information indicating the number of reference points;

14. The method according to claim 12, wherein the method further comprises:

15. The method of claim 14, wherein the reporting means comprises at least one of:

16. The method according to claim 12, wherein the method further comprises:

17. The method according to any one of claims 12-16, wherein the method further comprises:

18. The method of claim 17, wherein the method further comprises:

19. The method of claim 18, wherein the method further comprises:

20. An SRS sequence transmission apparatus, the apparatus comprising:

the first receiving module is used for receiving first indication information sent by the network side equipment, and the first indication information is used for quantifying the position coordinates of the terminal;

21. An SRS sequence transmission apparatus, the apparatus comprising:

22. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the SRS sequence transmission method according to any one of claims 1 to 11.

23. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the SRS sequence transmission method according to any one of claims 12 to 19.

24. An SRS transmission system comprising a terminal and a network side device, wherein the terminal is configured to perform the steps of the SRS sequence transmission method according to any one of claims 1 to 11; the network side device is configured to perform the steps of the SRS sequence transmission method according to any one of claims 12 to 19.