Signal transmission method and device, user equipment, network equipment and storage medium

Abstract

The embodiment of the invention relates to the technical field of mobile communication, and discloses a signal transmission method and device, user equipment, network equipment and a storage medium. The method comprises the following steps: determining an initial position parameter of a partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a sounding reference signal (SRS) symbol relative index and a partial frequency bandwidth parameter configured by network equipment; and determining an initial position in an SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each initial position parameter, and transmitting an SRS resource according to the initial position. According to the embodiment of the invention, the problem that in the prior art, the transmission mode of partial frequency bandwidth causes no SRS transmission on partial bandwidth is solved.

Description

[0001] This application is a divisional application of the application with the application date of August 6, 2021, application number 202110927259.0, and invention name “Signal transmission method and device, user equipment, network equipment, storage medium”. Technical Field

[0002] The present application relates to the field of mobile communication technologies, and in particular to a signal transmission method and apparatus, user equipment, network equipment, and storage medium. Background Art

[0003] In mobile communication systems, the network uses a Sounding Reference Signal (SRS) for uplink channel estimation, which is used for uplink or downlink data transmission. An SRS resource can contain 1, 2, 4, 8, or 12 symbols, and is reported to the network by the user equipment (UE) periodically, semi-continuously, or aperiodically within a time slot using either frequency hopping or non-frequency hopping.

[0004] Related technologies support SRS transmission using partial frequency bandwidth to enhance SRS capacity and coverage. However, this partial frequency bandwidth transmission method results in the absence of SRS transmission on certain bandwidths. To address this issue, the network can use an interpolation algorithm to calculate channel information for the bandwidths without SRS transmission. However, this approach increases computational complexity on the network side, reducing the accuracy of the calculated channel information. It also results in a period of time when SRS transmission is absent on certain resources, reducing data transmission performance.

[0005] Therefore, the lack of SRS transmission on part of the bandwidth is still a problem to be solved. Summary of the Invention

[0006] The embodiments of the present application provide a signal transmission method and apparatus, user equipment, network equipment, and storage medium to solve the problem in the prior art that the transmission mode of part of the frequency bandwidth results in no SRS transmission on part of the bandwidth.

[0007] In a first aspect, an embodiment of the present application provides a signal transmission method, the method comprising:

[0008] Determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device;

[0009] According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS resource is transmitted according to the starting position.

[0010] Optionally, the SRS symbol relative index indicates an OFDM symbol position of an SRS transmitted in each hop in SRS frequency hopping transmission, or an OFDM symbol position of an SRS transmitted in SRS non-frequency hopping transmission.

[0011] Optionally, the partial frequency bandwidth parameters include at least multiple of a number of repeated transmission symbols, a partial frequency sending factor, a starting position index factor, and a resource bandwidth parameter.

[0012] Optionally, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0013] Determine, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol;

[0014] According to the starting RB index, the starting position parameter for transmitting the SRS resource on a part of the frequency bandwidth of each OFDM symbol is determined.

[0015] Optionally, determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes:

[0016] Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship;

[0017] The first data relationship includes:

[0018]

[0019] Among them, N offset Indicates the starting RB index; l' offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter;

[0020] The second data relationship includes:

[0021]

[0022] Wherein, i represents the i-th transmission period of the SRS resource;

[0023] N max Indicates the maximum number of transmission cycles, Indicates the rounding operation of x upwards; Indicates the operation of rounding x down; represents the number of OFDM symbols included in each hop during frequency hopping transmission, or the number of OFDM symbols included in each SRS resource during non-frequency hopping transmission; R represents the number of repeated transmission symbols.

[0024] Optionally, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0025] receiving target indication information;

[0026] In response to the target indication information, determining a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0027] The target indication information indicates at least one of the following:

[0028] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0029] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0030] Indicates the value of the partial frequency transmission factor.

[0031] In a second aspect, an embodiment of the present application further provides a signal transmission method, the method comprising:

[0032] Configure partial frequency bandwidth parameters for the user equipment, instruct the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0033] Optionally, the instructing the user equipment to determine a starting position parameter of a partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device includes:

[0034] Sending target indication information to the user equipment, where the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0035] The target indication information indicates at least one of the following:

[0036] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0037] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0038] A numerical value indicating the fractional frequency transmission factor.

[0039] Optionally, the target indication information is carried in at least one of the following signaling messages: radio resource control RRC signaling, media access layer control element MAC-CE signaling, and downlink control indication DCI signaling.

[0040] Optionally, after configuring some frequency bandwidth parameters for the user equipment, the method includes:

[0041] The SRS resource is received at a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol.

[0042] In a third aspect, an embodiment of the present application further provides a user equipment, including a memory, a transceiver, and a processor:

[0043] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0044] Determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device;

[0045] According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS resource is transmitted according to the starting position.

[0046] Optionally, the SRS symbol relative index indicates an OFDM symbol position of an SRS transmitted in each hop in SRS frequency hopping transmission, or an OFDM symbol position of an SRS transmitted in SRS non-frequency hopping transmission.

[0047] Optionally, the partial frequency bandwidth parameters include at least multiple of a number of repeated transmission symbols, a partial frequency sending factor, a starting position index factor, and a resource bandwidth parameter.

[0048] Optionally, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0049] Determine, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol;

[0050] According to the starting RB index, the starting position parameter for transmitting the SRS resource on a part of the frequency bandwidth of each OFDM symbol is determined.

[0051] Optionally, determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes:

[0052] Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship;

[0053] The first data relationship includes:

[0054]

[0055] Among them, N offset Indicates the starting RB index; l' offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter;

[0056] The second data relationship includes:

[0057]

[0058] Wherein, i represents the i-th transmission period of the SRS resource;

[0059] N max Indicates the maximum number of transmission cycles, Indicates the rounding operation of x upwards; Indicates the operation of rounding x down; represents the number of OFDM symbols included in each hop during frequency hopping transmission, or the number of OFDM symbols included in each SRS resource during non-frequency hopping transmission; R represents the number of repeated transmission symbols.

[0060] Optionally, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0061] receiving target indication information;

[0062] In response to the target indication information, determining a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0063] The target indication information indicates at least one of the following:

[0064] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0065] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0066] Indicates the value of the partial frequency transmission factor.

[0067] In a fourth aspect, an embodiment of the present application further provides a network device, comprising:

[0068] Memory, transceiver, processor:

[0069] A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations:

[0070] Configure partial frequency bandwidth parameters for the user equipment, instruct the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0071] In a fifth aspect, an embodiment of the present application further provides a signal transmission device, the device comprising:

[0072] A parameter determination module is used to determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device;

[0073] The position determination module is configured to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each starting position parameter, and transmit the SRS resource according to the starting position.

[0074] In a sixth aspect, an embodiment of the present application further provides a signal transmission device, the device comprising:

[0075] A configuration module is used to configure partial frequency bandwidth parameters for a user equipment, instructing the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0076] In the seventh aspect, an embodiment of the present application also provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps in the above method when executing the computer program.

[0077] In an eighth aspect, an embodiment of the present application further provides a processor-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps in the above method are implemented.

[0078] In an embodiment of the present application, the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol are determined based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameters configured by the network device; the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined based on each of the starting position parameters, and the SRS resource is transmitted based on the starting position. By dynamically changing the starting position of the partial frequency bandwidth, SRS transmission is performed on the entire uplink bandwidth, and then the network device estimates the channel information of the uplink bandwidth based on the SRS received in the entire bandwidth, thereby improving the accuracy of uplink channel estimation and data transmission performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0080] Figure 1 One of the flow charts of the signal transmission method provided in an embodiment of the present application;

[0081] Figure 2 One of the schematic diagrams of the first example provided in the embodiment of the present application;

[0082] Figure 3 One of the schematic diagrams of the second example provided in the embodiment of the present application;

[0083] Figure 4 A second schematic diagram of a second example provided in an embodiment of the present application;

[0084] Figure 5 A schematic diagram of a third example provided in an embodiment of the present application;

[0085] Figure 6 A schematic diagram of a fourth example provided in an embodiment of the present application;

[0086] Figure 7 The second flowchart of the signal transmission method provided in the embodiment of the present application;

[0087] Figure 8 This is one of the structural block diagrams of the signal transmission device provided in an embodiment of the present application;

[0088] Figure 9 This is a second structural block diagram of the signal transmission device provided in an embodiment of the present application;

[0089] Figure 10 A structural block diagram of a user equipment provided in an embodiment of the present application;

[0090] Figure 11 This is a structural block diagram of the network device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0091] In the embodiments of this application, the term "and / or" describes the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0092] In the embodiments of the present application, the term "plurality" refers to two or more than two, and other quantifiers are similar.

[0093] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0094] The embodiments of the present application provide a signal transmission method and apparatus, user equipment, network equipment, and storage medium to solve the problem that the transmission mode of part of the frequency bandwidth causes no SRS transmission on part of the bandwidth.

[0095] Among them, the method and the device are based on the same application concept. Since the principles of solving problems by the method and the device are similar, the implementation of the device and the method can refer to each other, and the repeated parts will not be repeated.

[0096] In addition, the technical solutions provided in the embodiments of the present application can be applicable to a variety of systems, especially 5G systems. For example, applicable systems may be global system of mobile communication (GSM) systems, code division multiple access (CDMA) systems, wideband code division multiple access (WCDMA) general packet radio service (GPRS) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, long term evolution advanced (LTE-A) systems, universal mobile telecommunication systems (UMTS), worldwide interoperability for microwave access (WiMAX) systems, 5G new radio (NR) systems, etc. These various systems include user equipment and network equipment. The system may also include a core network part, such as an evolved packet system (EPS), a 5G system (5GS), etc.

[0097] The terminal device (user equipment) involved in the embodiments of the present application may be a device that provides voice and / or data connectivity to a user, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem. In different systems, the name of the terminal device may also be different. For example, in a 5G system, the terminal device may be called a user equipment (UE). A wireless terminal device can communicate with one or more core networks (CN) via a radio access network (RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device. For example, it can be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile device that exchanges voice and / or data with a radio access network. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and other devices. The wireless terminal device may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal device, an access terminal device, a user terminal device, a user agent, or a user device, but is not limited in the embodiments of the present application.

[0098] The network device involved in the embodiments of the present application may be a base station, which may include multiple cells providing services to terminals. Depending on the specific application scenario, the base station may also be called an access point, or may be a device in an access network that communicates with a wireless terminal device through one or more sectors on an air interface, or may be named otherwise. The network device may be used to interchange received air frames with Internet Protocol (IP) packets, acting as a router between the wireless terminal device and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management of the air interface. For example, the network device involved in the embodiments of the present application may be a network device (Base Transceiver Station, BTS) in the Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA), or a network device (NodeB) in Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device (eNB or e-NodeB) in the Long Term Evolution (LTE) system, a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolved Node B (HeNB), a relay node, a home base station (femto), a pico base station (pico), etc., and is not limited in the embodiments of the present application. In some network structures, the network device may include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit may also be geographically separated.

[0099] Network devices and terminal devices can each use one or more antennas for Multiple Input Multiple Output (MIMO) transmission. MIMO transmission can be either Single User MIMO (SU-MIMO) or Multi User MIMO (MU-MIMO). Depending on the configuration and number of antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO, or Massive-MIMO. It can also use diversity transmission, precoding, or beamforming.

[0100] See also Figure 1 An embodiment of the present application provides a signal transmission method, which can be executed by any electronic device, optionally by a UE. For the convenience of description, the method provided by the embodiment of the present application is described below using the UE as the execution subject.

[0101] like Figure 1 As shown in , the method may include the following steps:

[0102] Step 101: Determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device.

[0103] Among them, an SRS resource can be It is sent on consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. The value of is 1, 2, 4 or other values, such as Figure 2 , as a first example, see Figure 2 , Figure 2 Each rectangle in the figure represents an OFDM symbol. SRS resource 1 occupies one OFDM symbol, SRS resource 2 occupies four OFDM symbols, and SRS resource 3 occupies two OFDM symbols. By transmitting one SRS resource across multiple OFDM symbols, the coverage of the SRS reference signal is improved, and both intra-slot frequency hopping and inter-slot frequency modulation can be implemented.

[0104] The network device (i.e., the network side) configures partial frequency bandwidth parameters for the UE. The UE determines the starting position parameters of the partial frequency bandwidth corresponding to each OFDM symbol based on the relative index of the SRS symbol and the partial frequency bandwidth parameters. The starting position parameters are used to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; that is, the position determined by the starting position parameters of each OFDM symbol serves as the starting position of the frequency domain resource when the SRS resource is transmitted.

[0105] Optionally, a partial frequency bandwidth parameter such as a partial frequency transmission factor P F and the starting position index factor k F , P F Used to calculate the size of the partial frequency bandwidth for sending SRS, k F ∈{0,…,p F -1} is used to determine the starting position index of the partial frequency bandwidth.

[0106] The SRS symbol relative index indicates the symbol position of the transmitted SRS within the unit transmission resource; for example, in frequency hopping transmission, the network device configures the UE for each frequency hopping configuration. adjacent or non-adjacent SRS symbols, the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS in each hop; or in non-frequency hopping transmission, the SRS resources configured by the network device for the UE include adjacent or non-adjacent SRS symbols, and the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS.

[0107] In this way, the starting position parameter determined based on the SRS symbol relative index and the partial frequency bandwidth parameter is associated with the SRS symbol relative index and the partial frequency bandwidth parameter. However, the SRS symbol relative index is not fixed for each SRS transmission, and the partial frequency bandwidth parameter may also be configured differently. By configuring the starting position parameter based on the SRS symbol relative index and the partial frequency bandwidth parameter, SRS transmission occurs across the entire uplink bandwidth, enabling dynamic modification of the starting position of the partial frequency bandwidth for SRS transmission.

[0108] Step 102: Determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each starting position parameter, and transmit the SRS resource according to the starting position.

[0109] After obtaining the starting position parameter, the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined according to each starting position parameter, and the SRS resource is transmitted at the starting position to achieve SRS transmission over the entire bandwidth. This allows the network device to estimate the channel information of the entire uplink bandwidth based on the SRS received on each sub-band and the SRS received over the entire bandwidth, thereby improving data transmission performance.

[0110] In an embodiment of the present application, the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol is determined based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device; the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined based on each of the starting position parameters, and the SRS resource is transmitted based on the starting position. By dynamically changing the starting position of the partial frequency bandwidth, SRS transmission is performed on the entire uplink bandwidth, and then the network device estimates the channel information of the uplink bandwidth based on the SRS received across the entire bandwidth, thereby improving the accuracy of uplink channel estimation and data transmission performance. The embodiment of the present application solves the problem in the prior art that the transmission method of the partial frequency bandwidth results in no SRS transmission on the partial bandwidth.

[0111] In an optional embodiment, the SRS symbol relative index indicates the OFDM symbol position of the SRS transmitted in each hop during SRS frequency hopping transmission, or the OFDM symbol position of the SRS transmitted in SRS non-frequency hopping transmission. In frequency hopping transmission, the SRS symbol relative index indicates the OFDM symbol position of each hop; in non-frequency hopping transmission, the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS.

[0112] In an optional embodiment, the partial frequency bandwidth parameters include at least multiple of the number of repeated transmission symbols, the partial frequency transmission factor, the starting position index factor, and the resource bandwidth parameter.

[0113] The number of repeated transmission symbols R represents the number of repeated transmissions. F and the starting position index factor k F , P F Used to calculate the size of the partial frequency bandwidth for sending SRS, k F ∈{0,…,P F -1} is used to determine the starting position index of the partial frequency bandwidth. Resource bandwidth parameter Indicates the SRS frequency domain resource bandwidth corresponding to each OFDM symbol configured on the network side.

[0114] It can be understood that the partial frequency bandwidth parameters include at least multiple of the above parameters (number of repeated transmission symbols, partial frequency sending factor and starting position index factor and resource bandwidth parameter), for example, including at least two, at least three or all of the above parameters, and the embodiments of the present application are not limited here.

[0115] In an optional embodiment, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0116] Determine, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol;

[0117] According to the starting RB index, the starting position parameter for transmitting the SRS resource on a part of the frequency bandwidth of each OFDM symbol is determined.

[0118] The starting resource block (RB) index indicates the location of the starting RB. In the frequency domain, an RB consists of 12 subcarriers, totaling 180 kHz, with each subcarrier spaced 15 kHz apart. In the time domain, an RB typically consists of 14 OFDM symbols, and a resource block represents a time slot of 0.5 milliseconds. The UE determines the starting RB index based on the SRS symbol relative index and the partial frequency bandwidth parameter, and then uses the starting RB index to determine the starting location for SRS resource transmission.

[0119] In an optional embodiment, determining, based on the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes:

[0120] The starting RB index is determined according to the SRS symbol relative index, the partial frequency bandwidth parameter, and the target data relationship; the target data relationship includes a first data relationship or a second data relationship; the first data relationship and the second data relationship are introduced below in case one and case two respectively.

[0121] In case 1, the first data relationship includes the following formula 1:

[0122] Formula 1:

[0123]

[0124] Among them, N offset Indicates the starting RB index; l' offsetrepresents the relative index of the SRS symbol; mod represents the remainder operation; represents the SRS resource transmission bandwidth parameter corresponding to the OFDM symbol; F represents the partial frequency transmission factor, k F represents the starting position index factor; Represents the resource bandwidth parameter. The starting RB index determined based on the first data relationship and k F 、P F There is a correlation between R and the relative index of the SRS symbol in each hop. However, the relative index of the SRS symbol is not fixed each time the SRS is transmitted, and k F 、P F , R may also be configured differently. By configuring the starting position parameters through the relative index of the SRS symbol and some frequency bandwidth parameters, the N corresponding to different OFDM symbols is offset It is not fixed, so that SRS transmission is carried out on the entire uplink bandwidth, and the starting position of part of the frequency bandwidth is dynamically changed for SRS transmission.

[0125] As a second example, Figure 3 As shown, Figure 3 Taking frequency hopping transmission as an example, an SRS transmission process is illustrated. adjacent or non-adjacent SRS symbols, part of the frequency bandwidth is The index of the starting RB in each hop is relative to the index l′ of the SRS symbol offset Associated and network device configuration parameters According to the first data relationship, determine the first The frequency bandwidth of the part on the symbol is The index of the starting RB within.

[0126] like Figure 3 As shown, in one frequency hopping cycle (slot0 to slot3), each partial frequency bandwidth (a In this way, the network device can estimate the uplink channel of the entire bandwidth based on the SRS of the partial bandwidth sent on different symbols within one frequency hopping cycle.

[0127] Specifically, as a scenario of the second example, Figure 4 As shown, taking the frequency-hopping non-periodic SRS resource transmitted in the same time slot as an example, the network device UE is configured with a OFDM symbol aperiodic SRS resources, the number of repeated transmission symbols R = 2, P F and k F 2 and 0 respectively; Determined by the parameters CSRS, BSRS, and b-hop configured on the network side, C SRS 、B SRS 、b hop The values of are 13, 2 and 1 respectively, and the frequency hopping mode is as follows Figure 4 shown.

[0128] In addition, C SRS It is a parameter configured on the network side and is used to determine the entire bandwidth size of the SRS resource transmission; optionally, C SRS The value range is C SRS ∈{0,1,2……,63}。

[0129] B SRS It is a parameter that can be configured on the network side and is used to determine the number of frequency hopping of SRS resources during frequency hopping transmission. SRS The value range is B SRS ∈{0, 1, 2…, 63}; if the network side does not configure this parameter, its value is 0.

[0130] n hop ∈{0, 1, 2, 3} is a parameter configurable on the network side, used to determine whether SRS performs frequency hopping transmission. If not configured, its value is 0.

[0131] In determining C SRS 、B SRS 、n hop After obtaining the value of value.

[0132] See also Figure 4 UE determines the number of symbols contained in each hop based on R configured on the network side And according to the parameters configured on the network side, the bandwidth of each hop can be known According to the configured parameters P F and k F It can be seen that the bandwidth of SRS transmission on some frequencies is

[0133] If the network side instructs the UE to enable the frequency hopping function of the starting RB index through the downlink control indication (DCI) signaling, the UE calculates the index of the starting RB according to the first data relationship and sets R back to 1, where l′ offset For each hop The relative index of the SRS symbol of the symbol, the value is 0 or 1.

[0134] When l′ offset =0, N offset =0; when l′ offset =1, N offset =6. UE calculates the number of offset The frequency domain starting position of the SRS transmission on each symbol can be calculated using the following formula 3. For example, in this configuration, the RB starting index is in the transmission subband The values inside are 0 and 6.

[0135] As another scenario of the second example, taking the transmission of frequency-hopping aperiodic SRS resources (Aperiodic Sounding Reference Signal, A-SRS) in different time slots (slot0 to slot4) as an example, the network side configures a UE with OFDM symbol A-SRS resources, the number of repeated transmission symbols R = 4, P F and k F are 4 and 0 respectively, parameter C SRS 、B SRS The values of b-hop are 13, 2 and 1 respectively. The frequency hopping mode is as follows: Figure 3 As shown, frequency hopping transmission between time slots is realized.

[0136] In addition, the UE determines the number of symbols contained in each hop based on the parameter R configured on the network side. And according to the parameters configured on the network side, the bandwidth of each hop can be known According to the configured parameters P F and k F It can be seen that the bandwidth of SRS transmission on some frequencies is If the network side indicates the frequency hopping function of the starting RB index of the UE through DCI signaling, the UE calculates the index of the starting RB according to formula 1 and sets R back to 1. offset =0, 1, 2, 3 for each hop The relative index of the symbols, then the starting RB index N corresponding to each symbol offset They are 0, 3, 6, and 9 respectively. UE uses N offset The frequency domain starting position of the SRS transmission on each symbol can be calculated using the following formula 3. For example, the RB starting index is in the transmission subband The values inside are 0, 3, 6, and 9.

[0137] In this way, during frequency hopping transmission, by dynamically changing the starting position of part of the frequency bandwidth, SRS transmission is performed on the entire uplink bandwidth. Then, the network equipment estimates the channel information of the uplink bandwidth based on the SRS received in the entire bandwidth, thereby improving the accuracy of uplink channel estimation and data transmission performance.

[0138] As a third example, Figure 5 As shown, taking the transmission of non-frequency hopping A-SRS resources as an example, the network side configures a OFDM symbols of A-SRS resources, the repetition factor R = 1, that is, no repetition transmission, P F and k F are 4 and 0 respectively, and the values of parameters CSRS, BSRS, and b-hop are 13, 0, and 0 respectively.

[0139] The UE determines the bandwidth size of each hop based on the parameters configured on the network side According to the configuration parameter P F and k F It can be seen that the bandwidth of SRS transmission on some frequencies is '

[0140] The index of the starting RB is determined according to Formula 1, where l offset = 0, 1, 2, 3 are the relative indexes of each symbol in an SRS resource, and the starting RB index N corresponding to each symbol is offset They are 0, 12, 24, and 36 respectively, such as Figure 5 As shown, the RB start index is in the transmission subband The values inside are 0, 12, 24, 36.

[0141] In case 2, the second data relationship includes formula 2:

[0142] Formula 2:

[0143]

[0144] Wherein, i represents the i-th transmission period of the SRS resource;

[0145] N max Indicates the maximum number of transmission cycles, Indicates the rounding operation on x, that is, Express Rounding operation; Indicates the rounding down operation of x, that is Indicates l′ offset Floor operation, Express Floor operation; represents the number of OFDM symbols included in each hop during the hopping transmission, or the number of OFDM symbols included in each SRS resource during the non-hopping transmission; R represents the number of repeated transmission symbols. The starting RB index determined based on the second data relationship, N corresponding to different OFDM symbols offset is not fixed, enabling SRS transmission across the entire uplink bandwidth and achieving dynamic modification of the starting position of a partial frequency bandwidth for SRS transmission.

[0146] Optionally, in the application scenario of the second data relationship, the network side may configure or indicate a new R (denoted as R', R' < R) in one or more of the RRC / MAC-CE / DCI signaling. If the UE calculates the starting RB index according to the second data relationship, it needs to roll back R to the newly indicated R' by the network side.

[0147] As a fourth example, as Figure 6 shown Figure 6 Taking the hopping transmission as an example, it illustrates the process of an SRS transmission within a hopping period. Among them, according to Formula 2, it is determined that the index of the starting RB of the partial frequency bandwidth on the th symbol in each hop is within In addition, if there is still a partial bandwidth without SRS transmission across the entire bandwidth within a hopping period T SRS,1 in order to enable SRS transmission across the entire bandwidth, as shown in Figure 6 in the next hopping period T SRS,2 the starting RB index is changed to

[0148] Alternatively, the value of the number of SRS symbols in one hop is configured as P F R, such that SRS has transmission across the entire bandwidth within a hopping period. When the above SRS uses inter-slot hopping, SRS is transmitted on the same OFDM symbol or different OFDM symbols on each slot, and the SRS transmission bandwidth sizes on different symbols are the same, all being Alternatively, on a part of the symbols in each hop, the SRS transmission bandwidth is and on another part of the symbols, the SRS transmission bandwidth is Among them, P F1 and P f2 are both partial frequency transmission factors configured by the network side, and the two are different.

[0149] As a scenario of the third example, taking the frequency-hopping periodic SRS resource (Perodic Sounding Reference Signal, P-SRS) or semi-persistent SRS resource (Semi-Persistent-Sounding Reference Signal, SP-SRS) as an example, the network side configures a UE containing OFDM symbol periodic SRS resources, repetition factor R = 2, P F and k F The values of parameters CSRS, BSRS, and b-hop are 13, 2, and 1 respectively. The period T of SRS resources SRS and time slot offset T offset They are 10ms and 0ms respectively, and the frequency hopping method is as follows Figure 6 As shown, frequency hopping transmission between time slots is realized.

[0150] The UE determines the bandwidth size of each hop based on the parameters configured on the network side According to the configuration parameter P F and k F It can be seen that the bandwidth of SRS transmission on some frequencies is The maximum number of frequency hopping cycles required The index of the starting RB of the i-th SRS transmission cycle is determined according to Formula 2, where l′ offset =0, 1, 2, 3.

[0151] When imodN max = 0, then N of each symbol in each hop offset They are 0, 0, 3, and 3 respectively.

[0152] When imodN max =1, N of each symbol per hop offset They are 6, 6, 9, and 9 respectively.

[0153] The subsequent UE offset Calculate the frequency domain starting position of the SRS transmission on each symbol; for example, when imodN max = 0, the RB start index is in the transmission subband The values in are 0, 0, 3, 3; when imodN max =1, the RB start index is in the transmission subband The values inside are 6, 6, 9, 9.

[0154] Optionally, based on the starting RB index, a starting position parameter for transmitting the SRS resource on a portion of the frequency bandwidth for each OFDM symbol is determined. The starting position parameter may be determined based on a third data relationship, as shown in Formula 3, which determines the starting position of the SRS on the entire frequency domain resource:

[0155] Formula 3:

[0156]

[0157] in, Represents the starting position parameter, that is, the starting position of the frequency domain;

[0158]

[0159] Among them, the first preset condition includes otherwise means except the first preset condition;

[0160] p i ∈{1000, 1001, 1002, 1003} is the index of the port, K TC represents the subcarrier spacing of the SRS; n shift It is a preset parameter value, which is a value configured on the network side and is used to determine the offset of SRS resource transmission relative to the reference grid point in the frequency domain.

[0161] Indicates the SRS frequency domain resource bandwidth corresponding to each OFDM symbol configured on the network side.

[0162] Indicates the number of subcarriers contained in each RB, K TC Indicates the SRS combo value configured on the network side.

[0163] Furthermore, if the SRS is configured as an SRS resource for positioning, The value of is determined according to Table 1 below, otherwise According to Table 1, K TC andl′, where Indicates the number of OFDM symbols for transmitting SRS contained in the SRSS resource.

[0164] Table 1:

[0165]

[0166] in, Parameters configured on the network side.

[0167] is the maximum number of cyclic offsets, determined according to Table 2 below, It's K TC Function:

[0168] Table 2:

[0169]

[0170] This is the value assigned by the network side and is used to determine the generation of the SRS sequence;

[0171] Indicates the number of SRS antenna ports contained in an SRS resource.

[0172] In an optional embodiment, determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and the target data relationship includes:

[0173] receiving target indication information, and determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and the target data relationship;

[0174] The target indication information indicates at least one of the following:

[0175] Instruct the user equipment to set the number of repeated transmission symbols to a first preset value; the first preset value may be 1, 2, or the like.

[0176] Indicates that the frequency hopping function of the starting RB index of the user equipment is enabled; when the SRS frequency hopping function is enabled, an SRS resource occupies consecutive OFDM symbols in a time slot but occupies different subbands in the frequency domain;

[0177] Indicates the value of the partial frequency transmission factor.

[0178] Upon receiving the target indication information, the UE determines the starting RB index, where the target indication information is sent by the network side. Optionally, the target indication information may be carried in one or more of the following signaling messages: Radio Resource Control (RRC) signaling, Media Access Control–Control Element (MAC-CE) signaling, and DCI signaling.

[0179] In an embodiment of the present application, the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol are determined based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameters configured by the network device; the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined based on each of the starting position parameters, and the SRS resource is transmitted based on the starting position. By dynamically changing the starting position of the partial frequency bandwidth, SRS transmission is performed on the entire uplink bandwidth, and then the network device estimates the channel information of the uplink bandwidth based on the SRS received in the entire bandwidth, thereby improving the accuracy of uplink channel estimation and data transmission performance.

[0180] An embodiment of the present application further provides a signal transmission method, which can be executed by any electronic device, optionally, can be executed by a network device. For the convenience of description, the method is described below with the network device as the execution subject.

[0181] like Figure 7 As shown, the method includes:

[0182] Step 701: Configure partial frequency bandwidth parameters for the user equipment, instruct the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0183] Among them, an SRS resource can be It is sent on consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. The value of is 1, 2, 4 or other values, such as Figure 2 , as a first example, see Figure 2 , Figure 2 Each rectangle in the figure represents an OFDM symbol. SRS resource 1 occupies one OFDM symbol, SRS resource 2 occupies four OFDM symbols, and SRS resource 3 occupies two OFDM symbols. By transmitting one SRS resource across multiple OFDM symbols, the coverage of the SRS reference signal is improved, and both intra-slot frequency hopping and inter-slot frequency modulation can be implemented.

[0184] The network device (i.e., the network side) configures partial frequency bandwidth parameters for the UE, instructing the UE to determine the starting position parameters of the partial frequency bandwidth corresponding to each OFDM symbol based on the relative index of the SRS symbol and the partial frequency bandwidth parameters. The starting position parameters are used to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; that is, the position determined by the starting position parameter of each OFDM symbol is used as the starting position of the frequency domain resource when the SRS resource is transmitted.

[0185] Optionally, a partial frequency bandwidth parameter such as a partial frequency transmission factor P F and the starting position index factor k F , P F Used to calculate the size of the partial frequency bandwidth for sending SRS, k F ∈{0,…,P F -1} is used to determine the starting position index of the partial frequency bandwidth.

[0186] The SRS symbol relative index indicates the symbol position of the transmitted SRS within the unit transmission resource; for example, in frequency hopping transmission, the network device configures the UE for each frequency hopping configuration. adjacent or non-adjacent SRS symbols, the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS in each hop; or in non-frequency hopping transmission, the SRS resources configured by the network device for the UE include adjacent or non-adjacent SRS symbols, and the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS.

[0187] In this way, the starting position parameter determined based on the SRS symbol relative index and the partial frequency bandwidth parameter is associated with the SRS symbol relative index and the partial frequency bandwidth parameter. However, the SRS symbol relative index is not fixed for each SRS transmission, and the partial frequency bandwidth parameter may also be configured differently. By configuring the starting position parameter based on the SRS symbol relative index and the partial frequency bandwidth parameter, SRS transmission occurs across the entire uplink bandwidth, enabling dynamic modification of the starting position of the partial frequency bandwidth for SRS transmission.

[0188] The network device also instructs the UE to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource based on the starting position. After obtaining the starting position parameter, the UE determines the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and begins transmitting the SRS resource at the starting position, thereby achieving SRS transmission across the entire bandwidth. This allows the network device to estimate the channel information of the entire uplink bandwidth based on the SRS received on each partial sub-band and the SRS received across the entire bandwidth, thereby improving data transmission performance.

[0189] In an optional embodiment, the instructing the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device includes:

[0190] Sending target indication information to the user equipment, where the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0191] The target indication information indicates at least one of the following:

[0192] Instruct the user equipment to set the number of repeated transmission symbols to a first preset value; the first preset value may be 1, 2, or the like.

[0193] Indicates that the frequency hopping function of the starting RB index of the user equipment is enabled; when the SRS frequency hopping function is enabled, an SRS resource occupies consecutive OFDM symbols in a time slot but occupies different subbands in the frequency domain;

[0194] A numerical value indicating the fractional frequency transmission factor.

[0195] In an optional embodiment, the target indication information is carried in at least one of the following signaling messages: radio resource control RRC signaling, media access layer control element MAC-CE signaling, and downlink control indication DCI signaling.

[0196] In an optional embodiment, after configuring some frequency bandwidth parameters for the user equipment, the method includes:

[0197] The SRS resource is received at a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol.

[0198] The UE transmits SRS on the entire bandwidth, and the network device estimates the channel information of the entire uplink bandwidth based on the SRS received on each sub-band, thereby improving data transmission performance.

[0199] In an embodiment of the present application, the network device configures partial frequency bandwidth parameters for the user equipment, instructs the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameters configured by the network device, and instructs the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each OFDM symbol, and determines the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, transmits the SRS resource based on the starting position, and dynamically changes the starting position of the partial frequency bandwidth by configuring the partial frequency bandwidth parameters for the user equipment, so that SRS is transmitted on the entire uplink bandwidth, and then the channel information of the uplink bandwidth is estimated based on the SRS received in the entire bandwidth, thereby improving the accuracy of the uplink channel estimation and the data transmission performance. The embodiment of the present application solves the problem in the prior art that the transmission method of the partial frequency bandwidth results in no SRS transmission on the partial bandwidth.

[0200] Based on the same principle as the method provided in the embodiment of the present application, the embodiment of the present application also provides a signal transmission device, such as Figure 8 As shown, the device includes:

[0201] The parameter determination module 801 is configured to determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device.

[0202] Among them, an SRS resource can be It is sent on consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. The value of is 1, 2, 4 or other values, such as Figure 2 , as a first example, see Figure 2 , Figure 2 Each rectangle in the figure represents an OFDM symbol. SRS resource 1 occupies one OFDM symbol, SRS resource 2 occupies four OFDM symbols, and SRS resource 3 occupies two OFDM symbols. By transmitting one SRS resource across multiple OFDM symbols, the coverage of the SRS reference signal is improved, and both intra-slot frequency hopping and inter-slot frequency modulation can be implemented.

[0203] The network device (i.e., the network side) configures partial frequency bandwidth parameters for the UE. The UE determines the starting position parameters of the partial frequency bandwidth corresponding to each OFDM symbol based on the relative index of the SRS symbol and the partial frequency bandwidth parameters. The starting position parameters are used to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; that is, the position determined by the starting position parameters of each OFDM symbol serves as the starting position of the frequency domain resource when the SRS resource is transmitted.

[0204] Optionally, a partial frequency bandwidth parameter such as a partial frequency transmission factor P F and the starting position index factor k F , P F Used to calculate the size of the partial frequency bandwidth for sending SRS, k F ∈{0,…,P F -1} is used to determine the starting position index of the partial frequency bandwidth.

[0205] The SRS symbol relative index indicates the symbol position of the transmitted SRS within the unit transmission resource; for example, in frequency hopping transmission, the network device configures the UE for each frequency hopping configuration. adjacent or non-adjacent SRS symbols, the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS in each hop; or in non-frequency hopping transmission, the SRS resources configured by the network device for the UE include adjacent or non-adjacent SRS symbols, and the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS.

[0206] In this way, the starting position parameter determined based on the SRS symbol relative index and the partial frequency bandwidth parameter is associated with the SRS symbol relative index and the partial frequency bandwidth parameter. However, the SRS symbol relative index is not fixed for each SRS transmission, and the partial frequency bandwidth parameter may also be configured differently. By determining the starting position parameter based on the SRS symbol relative index and the configured partial frequency bandwidth parameter, SRS transmission occurs across the entire uplink bandwidth, enabling dynamic modification of the starting position of the partial frequency bandwidth for SRS transmission.

[0207] The position determination module 802 is configured to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each starting position parameter, and transmit the SRS resource according to the starting position.

[0208] After obtaining the starting position parameter, the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined according to each starting position parameter, and the SRS resource is transmitted at the starting position to achieve SRS transmission over the entire bandwidth. This allows the network device to estimate the channel information of the entire uplink bandwidth based on the SRS received on each sub-band and the SRS received over the entire bandwidth, thereby improving data transmission performance.

[0209] Optionally, in an embodiment of the present application, the SRS symbol relative index indicates the OFDM symbol position of the SRS transmitted in each hop in SRS frequency hopping transmission, or the OFDM symbol position of the SRS transmitted in SRS non-frequency hopping transmission.

[0210] Optionally, in an embodiment of the present application, the partial frequency bandwidth parameters include at least multiple of the number of repeated transmission symbols, the partial frequency sending factor, the starting position index factor, and the resource bandwidth parameter.

[0211] Optionally, in the embodiment of the present application, the parameter determination module 801 includes:

[0212] A first determining submodule is configured to determine, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol;

[0213] The second determining submodule is configured to determine, according to the starting RB index, a starting position parameter for transmitting SRS resources in each OFDM symbol on a partial frequency bandwidth.

[0214] Optionally, in the embodiment of the present application, the first determining submodule is configured to:

[0215] Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship;

[0216] The first data relationship includes:

[0217]

[0218] Among them, N offset Indicates the starting RB index; Indicates l′ offset Floor operation, l′ offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter;

[0219] The second data relationship includes:

[0220]

[0221] Wherein, i represents the i-th transmission period of the SRS resource;

[0222] N max Indicates the maximum number of transmission cycles, Indicates the rounding operation of x upwards; Indicates the operation of rounding x down; represents the number of OFDM symbols included in each hop during frequency hopping transmission, or the number of OFDM symbols included in each SRS resource during non-frequency hopping transmission; R represents the number of repeated transmission symbols.

[0223] Optionally, in the embodiment of the present application, the parameter determination module 801 includes:

[0224] A receiving submodule, configured to receive target indication information;

[0225] A response submodule, configured to determine, in response to the target indication information, a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0226] The target indication information indicates at least one of the following:

[0227] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0228] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0229] Indicates the value of the partial frequency transmission factor.

[0230] The signal transmission device provided in the embodiment of the present application can achieve Figures 1 to 7 To avoid repetition, the various processes implemented by the UE in the method embodiment are not described here.

[0231] The signal transmission device provided in the present application has a parameter determination module 801 that determines the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device; the position determination module 802 determines the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmits the SRS resource based on the starting position. By dynamically changing the starting position of the partial frequency bandwidth, SRS transmission is performed on the entire uplink bandwidth, and then the network device estimates the channel information of the uplink bandwidth based on the SRS received in the entire bandwidth, thereby improving the accuracy of uplink channel estimation and data transmission performance.

[0232] The present application also provides a signal transmission device, such as Figure 9 As shown, the device includes:

[0233] Configuration module 901 is used to configure partial frequency bandwidth parameters for the user equipment, instructing the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0234] Among them, an SRS resource can be It is sent on consecutive Orthogonal Frequency Division Multiplexing (OFDM) symbols. The value of is 1, 2, 4 or other values, such as Figure 2 , as a first example, see Figure 2 , Figure 2 Each rectangle in the figure represents an OFDM symbol. SRS resource 1 occupies one OFDM symbol, SRS resource 2 occupies four OFDM symbols, and SRS resource 3 occupies two OFDM symbols. By transmitting one SRS resource across multiple OFDM symbols, the coverage of the SRS reference signal is improved, and both intra-slot frequency hopping and inter-slot frequency modulation can be implemented.

[0235] The configuration module 901 configures partial frequency bandwidth parameters for the UE, instructing the UE to determine the starting position parameters of the partial frequency bandwidth corresponding to each OFDM symbol based on the relative index of the SRS symbol and the partial frequency bandwidth parameters. The starting position parameters are used to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; that is, the position determined by the starting position parameters of each OFDM symbol serves as the starting position of the frequency domain resource when the SRS resource is transmitted.

[0236] Optionally, a partial frequency bandwidth parameter such as a partial frequency transmission factor P F and the starting position index factor k F , P F Used to calculate the size of the partial frequency bandwidth for sending SRS, k F ∈{0,…,P F -1} is used to determine the starting position index of the partial frequency bandwidth.

[0237] The SRS symbol relative index indicates the symbol position of the transmitted SRS within the unit transmission resource; for example, in frequency hopping transmission, the network device configures the UE for each frequency hopping configuration. adjacent or non-adjacent SRS symbols, the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS in each hop; or in non-frequency hopping transmission, the SRS resources configured by the network device for the UE include adjacent or non-adjacent SRS symbols, and the SRS symbol relative index indicates the OFDM symbol position of the transmitted SRS.

[0238] In this way, the starting position parameter determined based on the SRS symbol relative index and the partial frequency bandwidth parameter is associated with the SRS symbol relative index and the partial frequency bandwidth parameter. However, the SRS symbol relative index is not fixed for each SRS transmission, and the partial frequency bandwidth parameter may also be configured differently. By configuring the starting position parameter based on the SRS symbol relative index and the partial frequency bandwidth parameter, SRS transmission occurs across the entire uplink bandwidth, enabling dynamic modification of the starting position of the partial frequency bandwidth for SRS transmission.

[0239] The network device also instructs the UE to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource based on the starting position. After obtaining the starting position parameter, the UE determines the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and begins transmitting the SRS resource at the starting position, thereby achieving SRS transmission across the entire bandwidth. This allows the network device to estimate the channel information of the entire uplink bandwidth based on the SRS received on each partial sub-band and the SRS received across the entire bandwidth, thereby improving data transmission performance.

[0240] Optionally, in an embodiment of the present application, the configuration module includes:

[0241] an indication submodule, configured to send target indication information to the user equipment, wherein the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0242] The target indication information indicates at least one of the following:

[0243] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0244] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0245] A numerical value indicating the fractional frequency transmission factor.

[0246] In an optional embodiment, the target indication information is carried in at least one of the following signaling messages: radio resource control RRC signaling, media access layer control element MAC-CE signaling, and downlink control indication DCI signaling.

[0247] Optionally, in an embodiment of the present application, the device includes:

[0248] The SRS receiving module is configured to receive the SRS resource at a starting position within an SRS frequency domain resource bandwidth corresponding to each OFDM symbol.

[0249] The signal transmission device provided in the embodiment of the present application can achieve Figures 1 to 7 To avoid repetition, the various processes implemented by the network device in the method embodiment are not described here.

[0250] In an embodiment of the present application, the configuration module 901 configures partial frequency bandwidth parameters for the user equipment, instructs the user equipment to determine the partial frequency bandwidth parameters according to the relative index of the sounding reference signal SRS symbol and the configuration of the network equipment, and instructs the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol, and determines the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each of the starting position parameters, transmits the SRS resource according to the starting position, and dynamically changes the starting position of the partial frequency bandwidth by configuring the partial frequency bandwidth parameters for the user equipment, so that SRS is transmitted on the entire uplink bandwidth, and then the channel information of the uplink bandwidth is estimated according to the SRS received in the entire bandwidth, thereby improving the accuracy of the uplink channel estimation and the data transmission performance.

[0251] It should be noted that the division of modules (units) in the embodiments of the present application is schematic and is only a logical functional division. In actual implementation, there may be other division methods. In addition, the functional modules in the various embodiments of the present application can be integrated into a processing module, or each module can exist physically separately, or two or more modules can be integrated into a module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software functional modules.

[0252] If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0253] It should be noted here that the above-mentioned device provided in the embodiment of the present application can implement all the method steps implemented in the above-mentioned method embodiment and can achieve the same technical effect. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0254] like Figure 10 As shown, an embodiment of the present application further provides a user equipment, including a memory 1020, a transceiver 1040, and a processor 1010;

[0255] Memory 1020, for storing computer programs;

[0256] a transceiver 1040 , configured to receive and send data under the control of the processor 1010 ;

[0257] The processor 1010 is configured to read the computer program in the memory 1020 and perform the following operations:

[0258] Determine the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device;

[0259] According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS resource is transmitted according to the starting position.

[0260] Optionally, in an embodiment of the present application, the SRS symbol relative index indicates the OFDM symbol position of the SRS transmitted in each hop in SRS frequency hopping transmission, or the OFDM symbol position of the SRS transmitted in SRS non-frequency hopping transmission.

[0261] Optionally, in an embodiment of the present application, the partial frequency bandwidth parameter includes at least one of a number of repeated transmission symbols, a partial frequency sending factor, a starting position index factor, and a resource bandwidth parameter.

[0262] Optionally, in an embodiment of the present application, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol according to the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0263] Determine, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol;

[0264] According to the starting RB index, the starting position parameter for transmitting the SRS resource on a part of the frequency bandwidth of each OFDM symbol is determined.

[0265] Optionally, in an embodiment of the present application, determining, based on the SRS symbol relative index and the partial frequency bandwidth parameter, a starting resource block RB index of the SRS resource within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes:

[0266] Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship;

[0267]

[0268] Among them, N offset Indicates the starting RB index; l' offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter;

[0269] The second data relationship includes:

[0270]

[0271] Wherein, i represents the i-th transmission period of the SRS resource;

[0272]

[0273] The number of OFDM symbols included, or the number of OFDM symbols included in each SRS resource during non-frequency hopping transmission; R represents the number of repeated transmission symbols.

[0274] Optionally, in an embodiment of the present application, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol according to the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0275] receiving target indication information;

[0276] receiving target indication information;

[0277] In response to the target indication information, determining a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0278] The target indication information indicates at least one of the following:

[0279] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0280] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0281] Indicates the value of the partial frequency transmission factor.

[0282] Among them, Figure 10In the present invention, the bus architecture can include any number of interconnected buses and bridges, specifically linking together various circuits of one or more processors 1010 represented by processor 1010 and memory 1020 represented by memory 1020. The bus architecture can also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore not further described herein. Bus interface 1030 provides an interface. Transceiver 1040 can be multiple components, namely, including a transmitter and a receiver, providing a unit for communicating with various other devices over a transmission medium, such as a wireless channel, a wired channel, an optical cable, etc. Processor 1010 is responsible for managing the bus architecture and general processing, and memory 1020 can store data used by processor 1010 when performing operations. For different user devices, user interface 1050 can also be an interface capable of connecting external or internal devices as required. Connected devices include but are not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0283] The processor 1010 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 1010 may also adopt a multi-core architecture.

[0284] The processor 1010 is configured to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 1020. The processor 1010 and the memory 1020 may also be physically separated.

[0285] like Figure 11 As shown, an embodiment of the present application further provides a network device, including a memory 1120, a transceiver 1140, and a processor 1110;

[0286] Memory 1120, for storing computer programs;

[0287] a transceiver 1140 , configured to receive and send data under the control of the processor 1110 ;

[0288] The processor 1110 is configured to read the computer program in the memory 1120 and perform the following operations:

[0289] Configure partial frequency bandwidth parameters for the user equipment, instruct the user equipment to determine the starting position parameters of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device, and determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol based on each of the starting position parameters, and transmit the SRS resource according to the starting position.

[0290] Optionally, in an embodiment of the present application, the instructing the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing OFDM symbol according to the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device includes:

[0291] Sending target indication information to the user equipment, where the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device;

[0292] The target indication information indicates at least one of the following:

[0293] Instructing the user equipment to set the number of repeated transmission symbols to a first preset value;

[0294] Instructing the user equipment to enable a frequency hopping function of a starting RB index;

[0295] A numerical value indicating the fractional frequency transmission factor.

[0296] In an optional embodiment, the target indication information is carried in at least one of the following signaling messages: radio resource control RRC signaling, media access layer control element MAC-CE signaling, and downlink control indication DCI signaling.

[0297] Optionally, in the embodiment of the present application, after configuring some frequency bandwidth parameters for the user equipment, the processor 1110 performs the following operations:

[0298] The SRS resource is received at a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol.

[0299] Among them, Figure 11In the embodiment, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors 1110 represented by the processor 1110 and various circuits of the memory 1120 represented by the memory 1120 are linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface 1130 provides an interface. The transceiver 1140 may be a plurality of elements, i.e., a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium, such as a wireless channel, a wired channel, an optical cable, and the like. The processor 1110 is responsible for managing the bus architecture and general processing, and the memory 1120 may store data used by the processor 1110 when performing operations.

[0300] The processor 1110 may be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or a complex programmable logic device (CPLD). The processor 1110 may also adopt a multi-core architecture.

[0301] The processor 1110 is configured to execute any of the methods provided in the embodiments of the present application according to the obtained executable instructions by calling the computer program stored in the memory 1120. The processor 1110 and the memory 1120 may also be physically separated.

[0302] It should be noted here that the above-mentioned user equipment and network equipment provided in the embodiments of the present application can respectively implement all the method steps implemented by the user equipment and network equipment in the above-mentioned method embodiments, and can achieve the same technical effects. The parts and beneficial effects of this embodiment that are the same as those in the method embodiment will not be described in detail here.

[0303] An embodiment of the present application further provides a processor-readable storage medium, wherein the processor-readable storage medium stores a computer program, and the computer program is used to enable the processor to execute the signal transmission method.

[0304] The processor-readable storage medium can be any available medium or data storage device that can be accessed by the processor, including but not limited to magnetic storage (such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO)), optical storage (such as CDs, DVDs, BDs, HVDs, etc.), and semiconductor storage (such as ROMs, EPROMs, EEPROMs, non-volatile memories (NANDFLASH), solid-state drives (SSDs)), etc.

[0305] Those skilled in the art will appreciate that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the present application can adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application can adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage and optical storage, etc.) that contain computer-usable program code.

[0306] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer-executable instructions. These computer-executable instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the steps in the process. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0307] These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the processor-readable memory produce an article of manufacture comprising an instruction device that implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 The function specified in one or more boxes.

[0308] These processor-executable instructions can also be loaded onto a computer or other programmable data processing device so that a series of operational steps are performed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable device to implement the process. Figure 1 a process or multiple processes and / or boxes Figure 1 The steps for the function specified in one or more boxes.

[0309] Obviously, those skilled in the art may make various changes and modifications to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalents, this application is intended to include these modifications and variations.

Claims

1. A signal transmission method, characterized in that: The method comprises: receiving target indication information; Based on the target indication information, according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS is transmitted according to the starting position.

2. The signal transmission method according to claim 1, wherein: The SRS symbol relative index indicates an OFDM symbol position of an SRS transmitted in each hop in SRS frequency hopping transmission, or an OFDM symbol position of an SRS transmitted in SRS non-frequency hopping transmission.

3. The signal transmission method according to claim 1, wherein: The determining, based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device, a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol includes: Determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting RB index of the SRS within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; According to the starting RB index, the starting position parameter for transmitting the SRS in each OFDM symbol on a part of the frequency bandwidth is determined.

4. The signal transmission method according to claim 3, wherein: The determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting RB index of the SRS within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes: Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship; The first data relationship includes: Among them, N offset Indicates the starting RB index; l' offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter; The second data relationship includes: Wherein, i represents the i-th transmission period of the SRS; N max Indicates the maximum number of transmission cycles, Indicates the rounding operation of x upwards; Indicates the operation of rounding x down; It represents the number of OFDM symbols included in each hop when the SRS is frequency hopping transmitted, or the number of OFDM symbols included in each SRS when the SRS is non-frequency hopping transmitted; R represents the number of repeatedly transmitted symbols.

5. A signal transmission method, characterized in that: The method comprises: Configuring partial frequency bandwidth parameters for a user equipment, and sending target indication information to the user equipment, wherein the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS is transmitted according to the starting position.

6. The signal transmission method according to claim 5, characterized in that: The target indication information is carried in at least one of the following signaling messages: radio resource control RRC signaling, media access layer control element MAC-CE signaling, and downlink control indication DCI signaling.

7. The signal transmission method according to claim 5 or 6, characterized in that: After configuring some frequency bandwidth parameters for the user equipment, the method includes: The SRS is received at a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol.

8. A user equipment, characterized in that Including memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: receiving target indication information; Based on the target indication information, according to the relative index of the sounding reference signal (SRS) symbol and the partial frequency bandwidth parameter configured by the network device, determining the starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS is transmitted according to the starting position.

9. The user equipment according to claim 8, wherein: The SRS symbol relative index indicates an OFDM symbol position of an SRS transmitted in each hop in SRS frequency hopping transmission, or an OFDM symbol position of an SRS transmitted in SRS non-frequency hopping transmission.

10. The user equipment according to claim 8, wherein: The determining, based on the relative index of the sounding reference signal SRS symbol and the partial frequency bandwidth parameter configured by the network device, a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol includes: Determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting RB index of the SRS within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol; According to the starting RB index, the starting position parameter for transmitting the SRS in each OFDM symbol on a part of the frequency bandwidth is determined.

11. The user equipment according to claim 10, wherein: The determining, according to the SRS symbol relative index and the partial frequency bandwidth parameter, a starting RB index of the SRS within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol includes: Determining the starting RB index according to the SRS symbol relative index, the partial frequency bandwidth parameter, and a target data relationship; the target data relationship includes a first data relationship or a second data relationship; The first data relationship includes: Among them, N offset Indicates the starting RB index; l' offset represents the relative index of the SRS symbol; mod represents the remainder operation; represents the resource bandwidth parameter; P F represents the partial frequency transmission factor, k F represents the starting position index factor; represents the resource bandwidth parameter; The second data relationship includes: Wherein, i represents the i-th transmission period of the SRS; N max Indicates the maximum number of transmission cycles, Indicates the rounding operation of x upwards; Indicates the operation of rounding x down; It indicates the number of OFDM symbols included in each hop when the SRS is transmitted in frequency hopping mode, or the number of OFDM symbols included in each SRS when the SRS is transmitted in non-frequency hopping mode; R indicates the number of repeated transmission symbols.

12. A network device, characterized in that: The network equipment includes: Memory, transceiver, processor: A memory for storing a computer program; a transceiver for transmitting and receiving data under the control of the processor; and a processor for reading the computer program in the memory and performing the following operations: Configuring partial frequency bandwidth parameters for a user equipment, and sending target indication information to the user equipment, wherein the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and the partial frequency bandwidth parameters configured by the network device; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; According to each of the starting position parameters, a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol is determined, and the SRS is transmitted according to the starting position.

13. A signal transmission device, characterized in that: The device comprises: A receiving submodule, configured to receive target indication information; A response submodule is configured to determine, based on the target indication information, a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol according to a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; The position determination module is configured to determine the starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each starting position parameter, and transmit the SRS according to the starting position.

14. A signal transmission device, characterized in that: The device comprises: A configuration module, configured to configure some frequency bandwidth parameters for user equipment; an indication submodule, configured to send target indication information to the user equipment, wherein the target indication information instructs the user equipment to determine a starting position parameter of the partial frequency bandwidth corresponding to each orthogonal frequency division multiplexing (OFDM) symbol based on a relative index of a sounding reference signal (SRS) symbol and a partial frequency bandwidth parameter configured by a network device; The target indication information indicates at least one of the following: The user equipment sets the number of repeated transmission symbols to a first preset value; The frequency hopping function of the starting RB index of the user equipment is enabled; The value of the partial frequency transmission factor; The configuration module is further configured to determine a starting position within the SRS frequency domain resource bandwidth corresponding to each OFDM symbol according to each starting position parameter, and transmit the SRS according to the starting position.

15. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores a computer program, and the computer program is configured to cause the processor to execute the method according to any one of claims 1 to 7.

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