Reference signal transmission method and related device

Abstract

Provided are a reference signal transmission method and a related device, the method comprising: receiving configuration information of an SRS resource, the SRS resource corresponding to three ports, the configuration information comprising a maximum number of CS values # imgabs0 # comb tooth offset # imgabs1 # of a reference port and a CS value # imgabs2 # of the reference port, the reference port being a predefined one of the three ports; based on the configuration information of the SRS resources, the terminal equipment can determine the CS values and the comb tooth offsets corresponding to the three ports respectively, and further sends the SRS resources corresponding to the three ports to the network equipment. The invention provides a scheme for determining the CS value and the comb tooth offset corresponding to each port under the condition that the SRS resource corresponds to three ports, so that the terminal equipment can conveniently send the SRS resource corresponding to the three ports to the network equipment.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a reference signal transmission method and related devices. Background Art

[0002] In wireless communications, network devices can configure reference signal resources for terminal devices. Accordingly, the terminal devices send reference signals to the network devices based on the reference signal resources. The network devices can obtain uplink channel information based on the received reference signals, and can even use channel reciprocity to obtain downlink channel information.

[0003] Taking the channel sounding reference signal (SRS) as an example, the network device can configure SRS resources for the terminal device. One SRS resource can correspond to one or more ports. The terminal device can send different SRSs through the SRS resources of different ports. At present, one SRS resource can correspond to two ports, and the SRS resources of two ports may not meet user needs. However, it is difficult to evolve to four ports in the short term. Therefore, three ports as a potential important evolution form have attracted the attention of the industry.

[0004] When one SRS resource corresponds to three ports, how to transmit the SRS of the three ports is an urgent problem to be solved. Summary of the invention

[0005] The present application provides a reference signal transmission method and related devices, so as to be able to transmit SRSs of three ports when one SRS resource corresponds to three ports.

[0006] In the first aspect, the present application provides a method for transmitting a reference signal, which can be executed by a terminal device, or by a component configured in the terminal device (such as a chip, a chip system, etc.), or by a logic module or software that can implement all or part of the terminal device functions, and the present application does not limit this.

[0007] Exemplarily, the method includes: receiving configuration information of an SRS resource, the SRS resource corresponding to three ports, the configuration information including a maximum number of CS values Comb offset (CO) of the reference port And the cyclic shift (CS) value of the reference port The reference port is a predefined port among the three ports; and SRS resources corresponding to the three ports are sent to the network device.

[0008] The above configuration information may be used to indicate the CS values ​​and comb tooth offsets corresponding to the three ports respectively.

[0009] Based on the above technical solution, the terminal device can receive the configuration information of the SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values ​​included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port. In this way, the terminal device can generate the SRS of the three ports based on the CS values ​​and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.

[0010] On the second aspect, the present application provides a method for transmitting a reference signal, which can be executed by a network device, or by a component configured in the network device (such as a chip, a chip system, etc.), or by a logic module or software that can implement all or part of the functions of the network device, and the present application does not limit this.

[0011] Exemplarily, the method includes: sending configuration information of SRS resources to the terminal device, the SRS resources corresponding to three ports, the configuration information including the maximum number of CS values Comb offsets for predefined reference ports And the CS value of the reference port Receive SRS resources corresponding to the above three ports.

[0012] The above configuration information can be used to indicate the CS value and comb offset corresponding to each of the above three ports.

[0013] Based on the above technical solution, the network device can send configuration information of the SRS resources to the terminal device to indicate the maximum number of CS values, the comb tooth offset of the reference port and the CS value of the reference port. In this way, the terminal device can determine the CS value and comb tooth offset corresponding to each of the three ports based on the above configuration information, generate the SRS of the three ports, and then facilitate the terminal device to send the SRS resources corresponding to the above three ports to the network device. Accordingly, the network device can receive the SRS resources corresponding to the above three ports.

[0014] In the present application, the comb tooth offset of the reference port can be understood as the reference comb tooth offset, which is used to determine the comb tooth offset values ​​corresponding to the above three ports, where K TC Indicates the comb tooth degree. The CS value of the reference port can be understood as the reference CS value, which is used to determine the CS values ​​corresponding to the above three ports. and This can be configured via the high-level parameter "transmissionComb".

[0015] In combination with the first aspect and the second aspect, in some possible implementations, when the frequency domain resources of the SRS of X ports among the three ports correspond to the same comb tooth offset, the minimum value of the difference between any two CS values ​​among the X CS values ​​corresponding to the X ports is or Wherein, X is an integer less than or equal to 3 and greater than 1.

[0016] Among them, the frequency domain resources of the SRS of the X ports among the above three ports correspond to the same comb tooth offset. It can be understood that the frequency domain resources of the SRS of the X ports among the above three ports are determined by the same comb tooth offset, or in other words, the X ports among the above three ports correspond to the same comb tooth offset.

[0017] One possible situation is that the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset, and the difference between the CS values ​​corresponding to the two ports is or

[0018] Another possible situation is that the frequency domain resources of the SRS of the above three ports all correspond to the same comb tooth offset, and the minimum difference between the CS values ​​corresponding to any two ports of the three ports is or

[0019] In combination with the first aspect and the second aspect, in some possible implementations, the frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets with the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port.

[0020] Among them, the frequency domain resources of the SRS of the first port and the second port among the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the above three ports. It can be understood that the comb tooth offsets corresponding to the first port and the second port are different from the comb tooth offsets corresponding to the third port, or in other words, the frequency domain resources of the SRS of the first port and the second port are determined by one comb tooth offset, and the frequency domain resources of the SRS of the third port are determined by another comb tooth offset.

[0021] The following will describe in detail the CS values ​​and comb tooth offsets corresponding to the three ports when the comb tooth offsets corresponding to the first port and the second port are different from the comb tooth offsets corresponding to the third port.

[0022] Optionally, the difference between the CS value corresponding to the third port and the CS value of the reference port changes as the CS value of the reference port changes.

[0023] If the configured CS value of the reference port changes, the difference between the CS value corresponding to the third port and the CS value of the reference port will also change accordingly. In other words, the difference between the CS value corresponding to the third port and the CS value of the reference port is related to the CS value of the reference port. In this way, the difference between the CS value corresponding to the third port and the CS value of the reference port can be adjusted by configuring different CS values ​​of the reference port, which is conducive to improving the flexibility of the difference between the CS value corresponding to the third port and the CS value of the reference port.

[0024] Optionally, the CS value corresponding to the third port is related to the CS value of the reference port, or when the CS value of the reference port is different, the difference between the CS value corresponding to the third port and the CS value of the reference port is different. That is, if the CS value of the configured reference port changes, the CS value corresponding to the third port will also change accordingly.

[0025] A possible design of the CS value corresponding to the third port is that the CS value corresponding to the third port satisfy: in, For Follow The changing function value, The value is an integer, and mod means the remainder operation.

[0026] For example, That is, the CS value corresponding to the third port satisfy: m is an integer, and mod represents the remainder operation. It can be seen that if the CS values ​​of the reference ports of different SRS resources are If the reference ports of different SRS resources have different CS values, then the CS value corresponding to the third port is also different. In addition, if the CS values ​​corresponding to the reference ports of different SRS resources are different, then due to the fact that the CS value corresponding to the third port has Therefore, the difference corresponding to the third ports of different SRS resources is greater than or equal to 2. In other words, there is an interval between the CS values ​​corresponding to the third ports of different SRS resources. In this way, the CS value of the interval can correspond to the SRS resources of other types of ports (such as four ports, or two ports, etc.), which is beneficial to improving resource utilization. In addition, the interval is beneficial to reducing the possibility of conflict between SRS resources of different types of ports.

[0027] Optionally, the CS value corresponding to the port number pi among the three ports is Satisfies the following formula:

[0028] in, With port number and Related, mod means remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0029] One possible design is, In other words, the CS value corresponding to the port number pi among the three ports above is Satisfies the following formula:

[0030]

[0031] Optionally, when and hour, In other words, the CS value corresponding to the port number pi among the three ports above is Satisfies the following formula:

[0032] Among them, mod represents the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0033] Optionally, the comb offset corresponding to the port numbered pi among the three ports is Satisfies the following formula: in, Indicates the number of ports is 3, K TC Indicates the comb tooth degree, mod indicates the modulus operation, and the port number 1000 is the reference port.

[0034] In combination with the first aspect and the second aspect, in some possible implementations, the frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset.

[0035] The frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset, which can be understood as the comb tooth offsets corresponding to each of the three ports are the same, or the frequency domain resources of the SRS of each of the three ports are determined by the same comb tooth offset.

[0036] In this design, the CS value corresponding to the port number pi among the three ports is Satisfies the following formula: or,

[0037] Among them, mod represents the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0038] In combination with the first aspect and the second aspect, in some possible implementations, the frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets.

[0039] The frequency domain resources of the SRS of each of the above three ports correspond to three different comb tooth offsets. It can be understood that the comb tooth offsets corresponding to each of the above three ports are different, or in other words, the frequency domain resources of the SRS of each of the above three ports are determined by three different comb tooth offsets.

[0040] Exemplarily, the comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports, or in other words, the comb tooth offset corresponding to each of the three ports satisfies the following formula:

[0041] or,

[0042] or,

[0043] in, It indicates that the number of ports is 3, mod indicates the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0044] In combination with the first aspect and the second aspect, in some possible implementations, the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is predefined or indicated by the network device.

[0045] Optionally, when the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is indicated by the network device, the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is related to the value range of the CS value of the reference port.

[0046] In other words, the network device can flexibly indicate the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports of the terminal device based on the value range of the CS value of the reference port, thereby facilitating the terminal device to select a method for determining the CS value corresponding to each port based on the design of the number of comb tooth offsets.

[0047] In a third aspect, the present application provides a communication device that can implement the method described in the first aspect and any possible implementation of the first aspect, or implement the method described in the second aspect and any possible implementation of the second aspect. The device includes a corresponding module for executing the above method. The module included in the device can be implemented by software and / or hardware.

[0048] In a fourth aspect, the present application provides a communication device, the device comprising a processor. The processor is coupled to a memory and can be used to execute a computer program in the memory to implement the method in the first aspect and any possible implementation of the first aspect, or to implement the method in the second aspect and any possible implementation of the second aspect.

[0049] Optionally, the device further comprises a communication interface, and the processor is coupled to the communication interface. The communication interface is used to receive a signal from other communication devices outside the device and transmit it to the processor, or send a signal from the processor to other communication devices outside the device. Exemplarily, the communication interface can be a transceiver, circuit, bus, module or other type of communication interface.

[0050] Optionally, the device further comprises a memory, and the processor is coupled to the memory. The memory is used to store program instructions and data.

[0051] In a fifth aspect, the present application provides a computer-readable storage medium, which stores a computer program or instruction. When the computer program or instruction is executed, it implements the method in the first aspect and any possible implementation of the first aspect, or implements the method in the second aspect and any possible implementation of the second aspect.

[0052] In a sixth aspect, the present application provides a computer program product comprising instructions, which, when executed, implement the method in the first aspect and any possible implementation of the first aspect, or implement the method in the second aspect and any possible implementation of the second aspect.

[0053] In the seventh aspect, the present application provides a chip system, which includes at least one processor for supporting the implementation of the functions involved in the above-mentioned first aspect and any possible implementation method of the first aspect, or for supporting the implementation of the functions involved in the above-mentioned second aspect and any possible implementation method of the second aspect, for example, receiving or processing the data involved in the above-mentioned method, etc.

[0054] In one possible design, the chip system also includes a memory, which is used to store program instructions and data, and the memory is located inside or outside the processor.

[0055] The chip system may be composed of the chip, or may include the chip and other discrete devices.

[0056] In an eighth aspect, the present application provides a communication system, comprising a terminal device for implementing the method described in the first aspect and any possible implementation manner of the first aspect, and a network device for implementing the method described in the second aspect and any possible implementation manner of the second aspect.

[0057] It should be understood that the third to eighth aspects of the present application correspond to the technical solutions of the first and second aspects of the present application, and the beneficial effects achieved by each aspect and the corresponding feasible implementation methods are similar and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1 It is a schematic diagram of the frequency domain resources of SRS;

[0059] Figure 2 is a schematic diagram of SRS occupying frequency domain resources provided in an embodiment of the present application;

[0060] Figure 3 It is a schematic diagram of channel responses corresponding to four ports of SRS resources provided in an embodiment of the present application;

[0061] Figure 4 is a schematic flow chart of a reference signal transmission method provided in an embodiment of the present application;

[0062] Figure 5 It is a schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application;

[0063] Figure 6 is another schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application;

[0064] Figure 7 It is a schematic diagram of CS values ​​corresponding to each port when the SRS resources provided in the embodiment of the present application correspond to different numbers of ports;

[0065] Figure 8 is another schematic diagram of CS values ​​corresponding to each port when the SRS resources provided in the embodiment of the present application correspond to different numbers of ports;

[0066] Fig. 9 is another schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application;

[0067] Fig.10 is another schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application;

[0068] Fig.11 It is a schematic diagram of CS values ​​corresponding to SRS resources of different ports provided in an embodiment of the present application;

[0069] Fig.12 is a schematic block diagram of a communication device provided in an embodiment of the present application;

[0070] Fig.13 is another schematic block diagram of a communication device provided in an embodiment of the present application;

[0071] Fig.14 It is a schematic diagram of the structure of a network device provided in an embodiment of the present application;

[0072] Fig.15 It is a structural diagram of the terminal device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0073] The technical solution in this application will be described below in conjunction with the accompanying drawings.

[0074] The technical solution provided in this application can be applied to various communication systems, such as: long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), sidelink communication system, universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) mobile communication system or new radio access technology (NR). Among them, the 5G mobile communication system can include non-standalone (NSA) and / or standalone (SA).

[0075] The technical solution provided in this application can also be applied to future communication systems, such as the sixth generation (6th Generation, 6G) mobile communication system, etc. This application does not limit this.

[0076] The following first introduces the network elements involved in the embodiments of the present application: network equipment and terminal equipment.

[0077] In the embodiment of the present application, the network device may be any device with wireless transceiver function. The network equipment includes, but is not limited to, evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (Wi-Fi) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be a gNB or transmission point (TRP or TP) in a 5G (such as NR) system, or one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or it can also be a network node constituting a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc. The network device may also be a wireless controller in a cloud radio access network (CRAN) scenario.

[0078] In an embodiment of the present application, the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device.

[0079] The terminal device may be a device that provides voice / data connectivity to the user, for example, a handheld device with wireless connection function, a vehicle-mounted device, etc. At present, some examples of terminal devices may be: mobile phones, tablet computers (pad), computers with wireless transceiver functions (such as laptops, PDAs, etc.), mobile Internet devices (mobile internet devices, MIDs), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, drones, wireless terminals in remote medical, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, cellular phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), and wireless terminals in smart cities. assistant, PDA), handheld devices with wireless communication function, computing devices or other processing devices connected to a wireless modem, vehicle-mounted devices, wearable devices, terminal devices in 5G networks or terminal devices in future evolved public land mobile communication networks (public landmobile network, PLMN), etc.

[0080] Among them, wearable devices can also be called wearable smart devices, which are a general term for the intelligent design and development of wearable devices for daily wear using wearable technology, such as glasses, gloves, watches, clothing and shoes. Wearable devices are portable devices that are worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also realize powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include full-featured, large-sized, and independent of smartphones to achieve complete or partial functions, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0081] In addition, the terminal device can also be a terminal device in the Internet of Things (IoT) system. IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-to-object interconnection. IoT technology can achieve massive connections, deep coverage, and terminal power saving through narrowband (NB) technology, for example.

[0082] In addition, terminal devices can also include sensors such as smart printers, train detectors, and gas stations. Their main functions include collecting data (part of the terminal equipment), receiving control information and downlink data from network devices, and sending electromagnetic waves to transmit uplink data to network devices.

[0083] It should be understood that the present application does not limit the specific forms of the network device and the terminal device.

[0084] Before introducing the method provided in the embodiments of the present application, the following points are explained.

[0085] First, in order to facilitate the clear description of the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same items or similar items with substantially the same functions and effects. For example, the first port and the second port are only used to distinguish different ports, and their order is not limited. Those skilled in the art can understand that the words "first", "second", etc. do not limit the quantity and execution order, and the words "first", "second", etc. do not necessarily limit them to be different.

[0086] Second, in the embodiments shown in this document, various terms and English abbreviations, such as sounding reference signal (SRS), cyclic shift (CS) value, comb offset (CO), etc., are illustrative examples given for the convenience of description and should not constitute any limitation to this application. This application does not exclude the possibility of defining other terms that can achieve the same or similar functions in existing or future protocols.

[0087] Third, the “protocol” involved in the embodiments of the present application may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, which is not limited in the present application.

[0088] Fourth, "at least one" means one or more, and "plurality" means two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.

[0089] Fifth, in the present application, the offset can be used to indicate the degree of offset between two objects, or the distance between two objects. For example, the subcarrier offset can be obtained by subtracting the numbers of two subcarriers.

[0090] Sixth, in this application, indication includes direct indication (also called explicit indication) and implicit indication (also called indirect indication). Wherein, direct indication of information A means including the information A; implicit indication of information A means indicating information A through the correspondence between information A and information B and direct indication of information B. Wherein, the correspondence between information A and information B can be predefined, pre-stored, pre-burned, or pre-configured.

[0091] Seventh, in this application, information C is used to determine information D, which includes information D being determined based only on information C, and information D being determined based on information C and other information. In addition, information C is used to determine information D, and it can also be indirectly determined, for example, information D is determined based on information E, and information E is determined based on information C.

[0092] Eighth, "sending" and "receiving" in this application indicate the direction of signal transmission. For example, "sending information to a terminal device" can be understood as the destination of the information being the terminal device, which can include direct sending through the air interface, and also includes indirect sending through the air interface by other units or modules. "Receiving information from a network device" can be understood as the source of the information being the network device, which can include directly receiving from the network device through the air interface, and also includes indirectly receiving from the network device through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface.

[0093] In other words, sending and receiving can be performed between devices, for example, between a network device and a terminal device; it can also be performed within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, wiring or interface.

[0094] Ninth, in this application, words such as "example", "exemplarily", "for example" or "such as" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "example", "exemplarily", "for example" or "such as" in this application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "example", "exemplarily", "for example" or "such as" is intended to present related concepts in a concrete way.

[0095] Tenth, in this application, the meanings of the symbols are as follows:

[0096] The maximum number of CS values ​​can be, for example, 6, 8, 12, etc.

[0097] The CS value of the predefined reference port, where It should be understood that in this application, the CS value of the reference port can be understood as a reference CS value, which is used to determine the CS values ​​corresponding to each of the above three ports. The CS value of the reference port is also called the CS parameter of the reference port, or the CS index of the reference port. The actual cyclic shift corresponding to the reference port

[0098] The CS value corresponding to the port with port number pi. It should be understood that in this application, the CS value corresponding to the port with port number pi is It can be understood as a cyclic shift parameter, rather than the actual cyclic shift corresponding to the port. When determining the actual cyclic shift corresponding to the port, it is necessary to determine it based on the cyclic shift parameter. For example, the actual cyclic shift corresponding to the port with port number pi is The CS value corresponding to the port with port number pi is also called the CS parameter corresponding to the port with port number pi, or the CS index corresponding to the port with port number pi. In other words, in this application, the CS value can be replaced by the CS parameter and the CS index, and the three have the same meaning.

[0099] The number of ports corresponding to the SRS resources. The solution provided in this application is a scenario where the number of ports corresponding to the SRS resources is 3.

[0100] The comb offset of the predefined reference port, where

[0101] K TC : Comb degree. The value of the comb degree may be, for example, 2, 4 or 8. The comb degree characterizes the frequency domain density of the SRS mapped in the frequency domain subcarrier, and the value of the comb degree may be the index difference of the adjacent subcarriers mapped by the SRS.

[0102] The comb tooth offset corresponding to the port number pi.

[0103] mod: modulus operation, which indicates the remainder after dividing two numerical expressions. For example, the format of the modulus function can be mod(x, y) or x mod y, which indicates the remainder after dividing x and y. This application does not limit its format.

[0104] Indicates rounding down. When L is not an integer, represents the largest integer less than L. For example,

[0105] Indicates rounding up. When L is not an integer, represents the smallest integer greater than L. For example, It is understood that in this application, if L is an integer, then or

[0106] Eleventh, in the present application, the solution provided in the present application is described by taking SRS as an example, but this should not constitute any limitation to the present application. The technical solution provided in the present application can also be applied to other types of reference signals, such as demodulation reference signal (DMRS), phase tracking reference signal (PTRS), tracking reference signal (TRS), channel state information-reference signal (CSI-RS), etc. In addition, the port numbers involved in the present application (such as 1000, 1001, 1002) can also be replaced by other numbers, and the present application does not limit this.

[0107] In order to better understand the method provided in the embodiments of the present application, the terms involved in the present application are briefly explained below.

[0108] 1. SRS: It is an uplink reference signal sent by a terminal device to a network device. After receiving the SRS, the network device can obtain uplink channel information based on the SRS, and can even use channel reciprocity (such as in a TDD system) to obtain downlink channel information. After the network device obtains the downlink channel information corresponding to the terminal device, it can perform data transmission resource scheduling or precoding processing on the terminal device based on the downlink channel information.

[0109] 2. Port: It can be understood as a transmitting antenna recognized by the receiving end, or a transmitting antenna that can be distinguished in space. The transmitting antenna can be a virtual antenna or a spatial resource. The receiving end can be a network device or a terminal device. For each virtual antenna or spatial resource, an antenna port can correspond, and each virtual antenna can be a weighted combination of multiple physical antennas. In this application, the port can also be called an SRS port or an antenna port, and this application does not limit the specific name of the port. The port can carry SRS, and each port corresponds to an SRS. Different ports can be multiplexed by code division, frequency division, time division or space division. At present, an SRS resource can correspond to one, two or four ports, and each port can be configured with its own time domain, frequency domain, and code domain resources. Usually, each port will occupy different time domain, frequency domain, and code domain resources to reduce mutual interference. Each port can correspond to a physical antenna or a virtual antenna of a terminal device, and this application does not limit this.

[0110] 3. CS: For different ports, the terminal device can send signals on the same time-frequency resources by code division multiplexing (equivalent to different CS, that is, different CS values). One possible implementation method is to multiply the SRS sequence in the frequency domain by a phase shift factor (here referred to as CS), which is equivalent to generating a cyclic shift offset for the SRS sequence in the time domain, and the maximum delay of the channel is often limited, so code division orthogonality of different ports can be achieved. In other words, different ports correspond to different CS values, which act on the SRS sequence, so that the SRS of different ports are different.

[0111] 4. Comb tooth offset: It can also be called comb tooth offset value, comb tooth value, comb tooth index, etc., and this application does not limit its name. Different comb tooth offsets represent different subcarrier groups or subcarrier positions, and each subcarrier in the subcarrier group is equally spaced. Each subcarrier in the subcarrier group can be regarded as each comb tooth in a comb, and the comb tooth degree refers to the difference between the numbers of every two adjacent subcarriers in the subcarrier group. The position of each subcarrier in the subcarrier group for carrying SRS can be determined based on the comb tooth offset and the comb tooth degree.

[0112] The following will be combined Figure 1Describe in detail the concept of comb offset.

[0113] Figure 1 It is a schematic diagram of frequency domain resources of SRS. Figure 1 a), b) and c) respectively show the distribution of SRS frequency domain resources under different comb tooth degrees.

[0114] like Figure 1 As shown in a), the comb tooth degree = 2, and the shaded part indicates the position of the subcarrier represented by each comb tooth when the comb tooth offset is 0, that is, the position of the frequency domain resource of SRS. Among them, the first subcarrier is numbered 0, the second subcarrier is numbered = 0 + comb tooth degree = 0 + 2 = 2, the third subcarrier is numbered = 2 + comb tooth degree = 2 + 2 = 4, the fourth subcarrier is numbered = 4 + comb tooth degree = 4 + 2 = 6, and so on. The white part indicates the position of each subcarrier when the comb tooth offset is 1. Among them, the first subcarrier is numbered 1, the second subcarrier is numbered = 1 + comb tooth degree = 1 + 2 = 3, the third subcarrier is numbered = 3 + comb tooth degree = 3 + 2 = 5, and so on.

[0115] like Figure 1 As shown in b), the comb tooth degree = 4, and the shaded part indicates the position of the subcarrier represented by each comb tooth when the comb tooth offset is 0, that is, the position of the frequency domain resource of SRS. Among them, the first subcarrier is numbered 0, the second subcarrier is numbered = 0 + comb tooth degree = 0 + 4 = 4, and the third subcarrier is numbered = 4 + comb tooth degree = 4 + 4 = 8. The white part indicates the position of each subcarrier when the comb tooth offset is 1, 2, and 3. Among them, when the comb tooth offset is 1, the first subcarrier is numbered 1, the second subcarrier is numbered = 1 + comb tooth degree = 1 + 4 = 5, and the third subcarrier is numbered = 5 + comb tooth degree = 5 + 4 = 9. When the comb tooth offset is 2 and 3, the calculation method of the number of each subcarrier is similar, which will not be described in detail here.

[0116] like Figure 1 As shown in c), the comb tooth degree = 8, and the shaded part indicates the position of the subcarrier represented by each comb tooth when the comb tooth offset is 0, that is, the position of the frequency domain resource of the SRS. Among them, the first subcarrier is numbered 0, the second subcarrier is numbered = 0 + comb tooth degree = 0 + 8 = 8, and the third subcarrier is numbered = 8 + comb tooth degree = 8 + 8 = 16. The white part indicates the position of each subcarrier when the comb tooth offset is 1 to 7, which will not be described in detail here.

[0117] 5. SRS measurement bandwidth and frequency hopping bandwidth: SRS measurement bandwidth is the total bandwidth of the channel measurement performed by the network device through SRS. At each SRS transmission time, the SRS resource can send signals on the entire measurement bandwidth or on a portion of the measurement bandwidth. When the signal is sent only on a portion of the measurement bandwidth, it is called SRS frequency hopping transmission, and the length of the partial bandwidth sent each time is the frequency hopping bandwidth. Through multiple SRS transmission times, the network device can obtain the channel corresponding to the entire SRS measurement bandwidth.

[0118] The following will be combined Figure 2 The measurement bandwidth and frequency hopping bandwidth of SRS are described. Figure 2 It is a schematic diagram of the SRS occupying frequency domain resources provided in an embodiment of the present application.

[0119] like Figure 2 As shown, a grid represents a subband in the frequency domain (for example, it can be a resource block (RB)), the measurement bandwidth of SRS is 16RB, the frequency hopping bandwidth of SRS is 4RB, and the terminal device sends SRS 4 times, and the network device can complete the measurement of the measurement bandwidth.

[0120] 6. SRS sequence corresponding to each port: The network device can configure SRS resources for the terminal device. The SRS resources can correspond to one or more ports. The number of ports corresponding to the SRS resources can be set by the parameter The value of this parameter can be 1, 2 or 4. The SRS sequence corresponding to the port with the port number pi among the multiple ports satisfies the following formula:

[0121] in, is the SRS base sequence, which can usually be a ZC sequence. The specific generation method is determined by the sequence length. v and u are the numbers of a base sequence in the SRS base sequence group. For different SRS sequence lengths, there are at least 30 base sequences. These 30 base sequences are further divided into 30 base sequence groups, each group corresponds to a group number u, u∈{0, 1…, 29}. Based on different SRS sequence lengths, each base sequence group further contains 1 or 2 base sequences, corresponding to sequence numbers v, u∈{0, 1}. δ=log 2 (K TC ). Among them, K TC Indicates the degree of comb teeth. Indicates the length of the SRS sequence, in is the number of subcarriers in an RB, s is the number of RBs occupied by SRS in one frequency hopping transmission, and n is the number of sequence elements.

[0122] From the calculation formula of the above SRS sequence, it can be seen that each port corresponds to an α i (denotes cyclic shift), where in, Yes and K TC Joint configuration. and K TC The corresponding relationship is shown in Table 1.

[0123] Table 1

[0124]

[0125] It can be understood that in this application, the CS value corresponding to the port number pi is It can be understood as a cyclic shift parameter, rather than the actual cyclic shift α corresponding to the port. i , just in determining the actual cyclic shift α corresponding to the port i When the cyclic shift parameter (i.e. ) determines, for example, the actual cyclic shift corresponding to the port number pi The actual cyclic shift α corresponding to the port here i It can be considered as a phase offset factor multiplied by the SRS sequence in the frequency domain, which is equivalent to the offset of the cyclic shift generated by the SRS sequence in the time domain.

[0126] In addition, one port corresponds to one comb tooth offset. The comb tooth offset corresponding to the port number pi satisfies the following formula:

[0127]

[0128] Figure 3 This is a schematic diagram of channel responses corresponding to the four ports of the SRS resources provided in an embodiment of the present application.

[0129] like Figure 3 As shown, it is assumed that the number of ports corresponding to SRS resource 1 configured by the network device for the terminal device is K TC =2, The CS values ​​corresponding to the four ports are 0, 2, 4, and 6 respectively. The vertical lines in the boxes represent the channel responses corresponding to the ports. It can be seen that the channel responses corresponding to the four ports are different.

[0130] Taking SRS as an example, network equipment can configure SRS resources for terminal equipment. One SRS resource can correspond to one or more ports. Terminal equipment can send different SRSs through SRS resources of different ports. Currently, one SRS resource can correspond to two ports, and the SRS resources of two ports may not meet user needs. However, it is difficult to evolve to four ports in the short term. Therefore, three ports as a potential important evolution form have attracted attention from the industry.

[0131] To this end, the present application provides a method for transmitting a reference signal, wherein a terminal device can receive configuration information of an SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values ​​included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port. In this way, the terminal device can generate the SRS of the three ports based on the CS values ​​and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.

[0132] The following will be combined with the accompanying drawings to describe in detail the reference signal transmission method provided by the embodiment of the present application. It should be understood that the embodiment shown below describes the method from the perspective of the interaction between the terminal device and the network device, but should not constitute any limitation on the execution subject of the method. As long as the program that can be run with the code of the method provided by the embodiment of the present application recorded, the method provided by the embodiment of the present application can be executed. For example, the terminal device can also be replaced by a component configured in the terminal device (such as a chip, a chip system, etc.), or other functional modules that can call and execute programs, and the network device can also be replaced by a component configured in the network device (such as a chip, a chip system, etc.), or other functional modules that can call and execute programs. The embodiment of the present application does not limit this.

[0133] Figure 4 It is a schematic flowchart of a reference signal transmission method provided in an embodiment of the present application. Figure 4 The method 400 shown may include step 410 and step 420. Each step in the method 400 is described in detail below.

[0134] Step 410: The network device sends configuration information of SRS resources to the terminal device, where the SRS resources correspond to three ports. Accordingly, the terminal device receives the configuration information of the SRS resources.

[0135] The configuration information includes the maximum number of CS values, the comb offset of the predefined reference port, and the CS value of the reference port. The predefined reference port can be any one of the three ports, which is not limited in this application. The configuration information can be used to indicate the CS value and comb offset corresponding to each of the three ports.

[0136] In addition, the SRS resource corresponds to three ports, which can be understood as the SRS resource is configured with three ports, or the SRS of the three ports are sent through the SRS resource. The terminal device can determine the CS value and comb tooth offset corresponding to each of the three ports based on the configuration information of the SRS resource.

[0137] The comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports includes the following three possible designs:

[0138] Design 1: The frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset, that is, the comb tooth offsets corresponding to each of the three ports are the same, or the frequency domain resources of the SRS of each of the three ports are determined by the same comb tooth offset. It can be understood that under this design, the comb tooth offset corresponding to the frequency domain resources of the SRS of each of the three ports can be configured by the network device, for example, it can be the comb tooth offset of the reference port.

[0139] Design 2: The frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port. In other words, the comb tooth offsets corresponding to the first port and the second port are different from the comb tooth offsets corresponding to the third port, or in other words, the frequency domain resources of the SRS of the first port and the second port are determined by one comb tooth offset, and the frequency domain resources of the SRS of the third port are determined by another comb tooth offset.

[0140] Design three: The frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets, that is, the comb tooth offsets corresponding to each of the three ports are different, or the frequency domain resources of the SRS of each of the three ports are determined by three different comb tooth offsets.

[0141] The following describes in detail how to determine the CS value and comb offset corresponding to each port under the above design.

[0142] It should be noted that, in this application, one port pi corresponds to one comb tooth offset. Indicates the starting frequency domain position of the port pi It is determined according to the following formula: in, The frequency domain RB offset configured is shown. represents the frequency domain subband offset, Indicates the comb offset, It is configured by the network device. After the terminal device determines the comb offset corresponding to the port, it can determine the starting frequency domain position according to the above formula.

[0143] For design one:

[0144] The three ports corresponding to the SRS resource correspond to the same comb tooth offset, which can be indicated by the network device, for example. The CS value corresponding to the port with port number pi among the three ports is Satisfies the following formula:

[0145]

[0146] or,

[0147]

[0148] Among them, the maximum number of CS values The comb offset k of the predefined reference port TC And the CS value of the reference port is the network device configuration. In addition, the other expressions in the formula Any value other than 8.

[0149] It is understood that in this application, the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application. For example, when the port number Y is used as the reference port, the CS value corresponding to the port number pi among the three ports is Satisfies the following formula: or,

[0150] The value of pi can be Y, Y+1 or Y+2.

[0151] Exemplarily, after receiving the above configuration information, the terminal device may determine the CS value corresponding to each of the above three ports according to Formula 3 or Formula 4.

[0152] The following will be combined Figure 5 and Figure 6 An example of using Formula 3 and Formula 4 to obtain the CS value corresponding to each of the three ports is given.

[0153] Figure 5 It is a schematic diagram of the CS values ​​corresponding to each port provided in the embodiment of the present application.

[0154] like Figure 5 As shown in a), K TC =2, The SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, that is, the three ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 0. For SRS resource 1, according to formula 3, the port number 1000 (that is, port 0 in the figure) corresponds to CS 0, the port number 1001 (that is, port 1 in the figure) corresponds to CS 2, and the port number 1002 (that is, port 2 in the figure) corresponds to CS 4. For SRS resource 2, according to formula 3, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS1, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 3, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 5. Among them, for the three ports corresponding to the same SRS resource, the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 2, the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 2, and the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 4. In other words, the minimum value of the difference between any two CS values ​​among the three CS values ​​corresponding to the three ports is

[0155] like Figure 5 As shown in b), K TC =2, The SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0. For SRS resource 1, according to Formula 4, the port number 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port number 1001 (i.e., port 1 in the figure) corresponds to CS 3, and the port number 1002 (i.e., port 2 in the figure) corresponds to CS 6. For SRS resource 2, according to Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 1, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 4, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 7. Among them, for the three ports corresponding to the same SRS resource, the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 3, the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 3, and the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 6. In other words, the minimum value of the difference between any two CS values ​​among the three CS values ​​corresponding to the three ports is

[0156] Figure 6FIG. 1 is another schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application. Figure 5 The difference is that in Figure 6 middle, Divisible by 3.

[0157] like Figure 6 As shown in a), K TC =4, The SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0. For SRS resource 1, according to Formula 3 or Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 4, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 8. For SRS resource 2, according to formula 3 or formula 4, the port number 1000 (that is, port 0 in the figure) corresponds to CS1, the port number 1001 (that is, port 1 in the figure) corresponds to CS5, and the port number 1002 (that is, port 2 in the figure) corresponds to CS9. Similarly, it can be concluded that and The CS values ​​corresponding to each port are not described in detail here. Among them, for the three ports corresponding to the same SRS resource, the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 4, the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 4, and the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 8. In other words, the minimum difference between any two CS values ​​of the three ports is

[0158] like Figure 6 As shown in b), K TC =8, The SRS resources configured on the network device correspond to three ports, namely The frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0. For SRS resource 1, according to Formula 3 or Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 0, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 2, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 4. For SRS resource 2, according to Formula 3 or Formula 4, the port numbered 1000 (i.e., port 0 in the figure) corresponds to CS 1, the port numbered 1001 (i.e., port 1 in the figure) corresponds to CS 3, and the port numbered 1002 (i.e., port 2 in the figure) corresponds to CS 5. Among them, for the three ports corresponding to the same SRS resource, the difference between the CS value corresponding to port 0 and the CS value corresponding to port 1 is 2, the difference between the CS value corresponding to port 1 and the CS value corresponding to port 2 is 2, and the difference between the CS value corresponding to port 0 and the CS value corresponding to port 2 is 4. In other words, the minimum value of the difference between any two CS values ​​among the three CS values ​​corresponding to the three ports is

[0159] Depend on Figure 5 and Figure 6 It can be seen that when the frequency domain resources of the SRS of the above three ports all correspond to the same comb tooth offset, the minimum difference between the CS values ​​corresponding to any two ports of the three ports is or

[0160] It is not difficult to understand that for Design 1, there is a high possibility that the SRS resources corresponding to three ports conflict with the SRS resources corresponding to two ports (or four ports). Figure 7 and Figure 8 Give several examples of conflicts.

[0161] Figure 7 It is a schematic diagram of CS values ​​corresponding to each port when the SRS resources provided in the embodiment of the present application correspond to different numbers of ports.

[0162] like Figure 7 As shown in a), K TC =2, For the SRS resources corresponding to three ports (3-port-SRS resources in the figure), the frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0. According to Formula 3 or Formula 4, the three ports correspond to CS1, CS 4 and CS 7 respectively. For the SRS resources corresponding to the four ports (the 4-port-SRS resources in the figure), the frequency domain resources of the SRS of the four ports correspond to the same comb tooth offset, which is specifically 0. According to Formula 1, the four ports correspond to CS 0, CS 2, CS 4 and CS 6 respectively. It can be seen that the 4-port-SRS resource will conflict with the 3-port-SRS resource on CS 4 with a comb offset of 0.

[0163] like Figure 7 As shown in b), K TC =8, For the SRS resources corresponding to three ports (3-port-SRS resources in the figure), the frequency domain resources of the SRS of the three ports correspond to the same comb tooth offset, which is specifically 0. According to Formula 3 or Formula 4, the three ports correspond to CS 0, CS 2, and CS 4, respectively. For the SRS resources corresponding to the four ports (the 4-port-SRS resources in the figure), the frequency domain resources of the SRS of the four ports correspond to two comb tooth offsets. According to Formula 2, the comb tooth offsets are specifically 0 and 4. If According to formula 1, the four ports correspond to CS1 and CS 4 respectively. It can be seen that the 4-port-SRS resource will conflict with the 3-port-SRS resource on CS 4 where the comb tooth offset is 0.

[0164] Figure 8 1 is another schematic diagram of CS values ​​corresponding to each port when SRS resources provided in an embodiment of the present application correspond to different numbers of ports. Figure 7 The difference is that in Figure 8 In the embodiment, the frequency domain resources of the SRS of the three ports of the SRS resource correspond to two comb tooth offsets. However, when the frequency domain resources of the SRS of the three ports of the SRS resource correspond to two comb tooth offsets, if the CS value corresponding to each of the three ports is determined based on formula one, there may also be a conflict problem.

[0165] like Figure 8 As shown in a), K TC =2, For the SRS resources corresponding to three ports (3-port-SRS resources in the figure), the frequency domain resources of the SRS of the three ports correspond to two comb tooth offsets. According to Formula 2, the comb tooth offsets are 0 and 1 respectively. For example, the comb tooth offset corresponding to the frequency domain resources of the SRS of ports 0 and 2 is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of port 1 is 1. When the comb tooth offset is 0, the CS values ​​corresponding to ports 0 and 2 can be determined according to the method of determining the CS value of the SRS resources of the two ports. For example, if That is, for SRS resource 1 with three ports (referred to as 3-port-SRS resource 1 in the figure), port number 1000 (port 0 in the figure) corresponds to CS 0, port number 1001 (port 1 in the figure) corresponds to CS 2, and port number 1002 (port 2 in the figure) corresponds to CS 4. and When , the CS value corresponding to each port can be obtained in the same way, which will not be repeated here. For the SRS resources corresponding to the two ports (the 2-port-SRS resources in the figure), the frequency domain resources of the SRS of the two ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 1. Each of the two ports corresponds to CS 0 and CS 3 respectively. It can be seen that the 2-port-SRS resource will conflict with the 3-port-SRS resource on CS 3 with a comb tooth offset of 1.

[0166] like Figure 8 As shown in b), K TC =8, For the SRS resources corresponding to three ports (3-port-SRS resources in the figure), the frequency domain resources of the SRS of the three ports correspond to two comb tooth offsets. According to Formula 1, the comb tooth offsets are 0 and 4 respectively. For example, the comb tooth offset corresponding to the frequency domain resources of the SRS of ports 0 and 2 is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of port 1 is 4. When the comb tooth offset is 0, the CS values ​​corresponding to ports 0 and 2 can be determined according to the method of determining the CS value of the SRS resources of the two ports. For example, if That is, for SRS resource 1 with three ports (referred to as 3-port-SRS resource 1 in the figure), port number 1000 (port 0 in the figure) corresponds to CS 0, port number 1001 (port 1 in the figure) corresponds to CS 0, and port number 1002 (port 2 in the figure) corresponds to CS 3. and When , the CS value corresponding to each port can be obtained in the same way, which will not be repeated here. For the SRS resources corresponding to the two ports (the 2-port-SRS resources in the figure), the frequency domain resources of the SRS of the two ports correspond to the same comb tooth offset, and the comb tooth offset is specifically 4. Each of the two ports corresponds to CS 0 and CS 3 respectively. It can be seen that the 2-port-SRS resource will conflict with the 3-port-SRS resource on CS 3 with a comb tooth offset of 4.

[0167] In summary, there is a high possibility that the SRS resources corresponding to the three ports conflict with the SRS resources of the two ports (or four ports). Therefore, in the present application, when the frequency domain resources of the SRS of the first port and the second port among the above three ports correspond to different comb tooth offsets with the frequency domain resources of the SRS of the third port among the above three ports, the difference between the CS value corresponding to the third port and the CS value of the reference port changes with the change of the CS value of the reference port. If the CS value of the configured reference port changes, the difference between the CS value corresponding to the third port and the CS value of the reference port will also change accordingly. In other words, the difference between the CS value corresponding to the third port and the CS value of the reference port is related to the CS value of the reference port. In this way, the difference between the CS value corresponding to the third port and the CS value of the reference port can be adjusted by configuring different CS values ​​of the reference port.

[0168] Optionally, the CS value corresponding to the third port among the three ports is related to the CS value of the reference port. That is, if the CS value of the reference port changes, the CS value corresponding to the third port will also change accordingly.

[0169] One possible implementation is that the CS value corresponding to the third port satisfy: in, For Follow The changing function value, The value is an integer, and mod means the remainder operation.

[0170] For example, That is, the CS value corresponding to the third port satisfy: m is an integer. It can be seen that if the CS value of the reference port of different SRS resources If the reference ports of different SRS resources have different CS values, then the CS value corresponding to the third port is also different. In addition, if the CS values ​​corresponding to the reference ports of different SRS resources are different, then due to the fact that the CS value corresponding to the third port has Therefore, the difference corresponding to the third ports of different SRS resources is greater than or equal to 2. In other words, there is an interval between the CS values ​​corresponding to the third ports of different SRS resources. In this way, the CS value of the interval can correspond to the SRS resources of other types of ports (such as four ports, or two ports, etc.), which is conducive to improving resource utilization. In addition, the interval is conducive to reducing the possibility of conflict between SRS resources of different types of ports. For example, m can be a positive integer such as 1, 2, 3, or a negative integer such as -1, -2, etc., and this application does not limit this.

[0171] For example, the CS value corresponding to the port with the port number pi among the three ports can be determined by the following formula, or in other words, the CS value corresponding to the port with the port number pi among the three ports can be determined by the following formula: Satisfies the following formula:

[0172] in, With port number and Related, mod means remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0173] One possible design is, In other words, the CS value corresponding to the port number pi among the three ports above is Satisfies the following formula:

[0174]

[0175] Among them, mod represents the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0176] It is understood that in this application, the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application. For example, when the port number Y is used as the reference port, the CS value corresponding to the port number pi among the above three ports is Satisfies the following formula: The value of pi can be Y, Y+1 or Y+2.

[0177] Optionally, when and hour, In other words, the CS value corresponding to the port number pi among the three ports above is Satisfies the following formula:

[0178]

[0179] The value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port. and When , the terminal device can determine the CS value corresponding to each of the three ports according to Formula 6. or When the value is other, the terminal device can determine the CS value corresponding to each of the three ports according to Formula 5.

[0180] It is understood that in this application, the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application. For example, when the port number Y is used as a reference port, and When the CS value corresponding to the port number pi among the above three ports is Satisfies the following formula:

[0181] The value of pi can be Y, Y+1 or Y+2.

[0182] In addition, the comb offset corresponding to the port number pi among the three ports mentioned above Satisfies the following formula:

[0183]

[0184] in, Indicates the number of ports is 3, K TC Indicates the comb tooth degree. The value of pi is 1000, 1001 or 1002. The port numbered 1000 is the reference port.

[0185] It is understood that in this application, the port number 1000 is used as a reference port for example only and should not constitute any limitation to this application. For example, when the port number Y is used as the reference port, the comb offset corresponding to the port number pi among the above three ports is Satisfies the following formula: The value of pi can be Y, Y+1 or Y+2.

[0186] The following will be combined Fig. 9 and Fig.10 An example of using Formula 5 and Formula 6 to obtain the CS value corresponding to each of the three ports is given.

[0187] Fig. 9 1 is another schematic diagram of CS values ​​corresponding to various ports provided in an embodiment of the present application, wherein port 1 is an example of the third port, port 0 is an example of the first port, and port 2 is an example of the second port.

[0188] like Fig. 9 As shown in a), K TC =2, The SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 1. For SRS resource 1, according to Formula 5, the port number 1000 (that is, port 0 in the figure) corresponds to CS 0, the port number 1001 (that is, port 1 in the figure) corresponds to CS 1, and the port number 1002 (that is, port 2 in the figure) corresponds to CS 4. Similarly, we can get The CS values ​​corresponding to each port when the value is 1, 2, or 3. Among them, for the three ports corresponding to the same SRS resource, the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset, and the difference between the CS values ​​corresponding to port 0 and port 2 is 4. In other words, when the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset, the difference between the CS values ​​corresponding to the two ports is 6. As can be seen from the figure, when the comb tooth offset is 1, the positions with CS values ​​of 0, 2, 4, and 6 are vacant, so these positions can be used for SRS resources corresponding to 2 ports (or 1 port, or 4 ports).

[0189] like Fig. 9 As shown in b), K TC =4, The SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 2. For SRS resource 1, according to Formula 5, the port number 1000 (that is, port 0 in the figure) corresponds to CS 0, the port number 1001 (that is, port 1 in the figure) corresponds to CS 1, and the port number 1002 (that is, port 2 in the figure) corresponds to CS 6. Similarly, we can get The CS values ​​corresponding to each port when the value is 1, 2, 3, 4, and 5. Among them, for the three ports corresponding to the same SRS resource, the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset, and the difference between the CS values ​​corresponding to port 0 and port 2 is 6. In other words, when the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset, the difference between the CS values ​​corresponding to the two ports is 6.

[0190] Fig.10This is another schematic diagram of the CS values ​​corresponding to each port provided in the embodiment of the present application.

[0191] like Fig.10 As shown in a), K TC =4, The SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port number 1001 (i.e., port 1 in the figure) is 2. For SRS resource 1, according to Formula 5, the port number 1000 (that is, port 0 in the figure) corresponds to CS2, the port number 1001 (that is, port 1 in the figure) corresponds to CS5, and the port number 1002 (that is, port 2 in the figure) corresponds to CS8. Similarly, we can get When the value is 3 or 5, the CS value corresponding to each port. For SRS resources corresponding to four ports, the comb tooth offset corresponding to the frequency domain resources of SRS of port 0 and port 2 is 0, and the comb tooth offset corresponding to the frequency domain resources of SRS of port 1 and port 3 is 2. Port 0 corresponds to CS 6, port 1 corresponds to CS 9, port 2 corresponds to CS 0, and port 3 corresponds to CS 3.

[0192] like Fig.10 As shown in b), K TC =8, The SRS resources configured in the network device correspond to three ports, namely According to Formula 7, the comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1000 (i.e., port 0 in the figure) and the port number 1002 (i.e., port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1001 (i.e., port 1 in the figure) is 4. For SRS resource 1, according to Formula 6, the port number 1000 (that is, port 0 in the figure) corresponds to CS 0, the port number 1001 (that is, port 1 in the figure) corresponds to CS 1, and the port number 1002 (that is, port 2 in the figure) corresponds to CS 3. Similarly, we can get When the value is 1 or 2, the CS value corresponding to each port. For the three ports corresponding to the same SRS resource, the frequency domain resources of the SRS of port 0 and port 2 correspond to the same comb tooth offset, and the difference between the CS values ​​corresponding to port 0 and port 2 is 3. In other words, when the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset, the difference between the CS values ​​corresponding to the two ports is 3.

[0193] Depend on Fig. 9 and Fig.10 It can be seen that when the frequency domain resources of the SRS of two of the three ports correspond to the same comb tooth offset, the difference in CS values ​​corresponding to the two ports is or

[0194] Fig.11 Schematic diagram of CS values ​​corresponding to SRS resources of different ports provided in an embodiment of the present application. Fig.11 For an SRS resource corresponding to three ports, the CS value of each port can be determined directly according to the method of determining the CS value when the SRS resource corresponds to four ports, or in other words, the CS value of each port when the SRS resource corresponds to three ports can be calculated according to Formula 1.

[0195] like Fig.11 As shown, K TC =4, The SRS resources configured in the network device correspond to three ports, namely The comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1000 (that is, port 0 in the figure) and the port number 1002 (that is, port 2 in the figure) is 0, and the comb tooth offset corresponding to the frequency domain resource of the SRS of the port number 1001 (that is, port 1 in the figure) is 2. For SRS resource 1, port number 1000 (i.e. port 0 in the figure) corresponds to CS 7, port number 1001 (i.e. port 1 in the figure) corresponds to CS10, and port number 1002 (i.e. port 2 in the figure) corresponds to CS1. Similarly, the CS values ​​corresponding to the ports corresponding to other SRS resources can be obtained. For SRS resources with four ports, port 0 corresponds to CS 6, port 1 corresponds to CS 9, port 2 corresponds to CS3, and port 3 corresponds to CS 0. For design three:

[0196] The frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets. Under this design, the CS value corresponding to each of the three ports may be configured by the network device.

[0197] Exemplarily, the comb tooth offset corresponding to the frequency domain resource of the SRS of each of the three ports, or in other words, the comb tooth offset corresponding to each of the three ports satisfies the following formula:

[0198] or,

[0199] or,

[0200] in, It indicates that the number of ports is 3, mod indicates the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

[0201] For example, K TC =8, The comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 1, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 2.

[0202] For example, K TC =8, The comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 3, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 6.

[0203] For example, K TC =8, The comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1000 is 0, the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1001 is 2, and the comb tooth offset corresponding to the frequency domain resources of the SRS of the port with port number 1002 is 5.

[0204] It can be understood that if the terminal device supports multiple of the above-mentioned Design 1, Design 2 or Design 3, the network device can indicate which design to use, or the protocol predefines which design to use. In other words, the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports can be predefined or indicated by the network device. When the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is 1, the terminal device uses Design 1 to determine the comb tooth offsets and CS values ​​corresponding to each port; when the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is 2, the terminal device uses Design 2 to determine the comb tooth offsets and CS values ​​corresponding to each port; when the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is 3, the terminal device uses Design 3 to determine the comb tooth offsets and CS values ​​corresponding to each port.

[0205] In the case where the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the above three ports is indicated by the network device, a possible implementation method is that the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is related to the value range of the CS value of the reference port. In other words, the network device can implicitly indicate the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports through the value range of the CS value of the reference port.

[0206] For example, the terminal device supports both Design 1 and Design 2. The CS value of the reference port can be in the range of When , it indicates that design one is adopted, that is, the frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset.

[0207] For example, when and (ie, three ports corresponding to the SRS resource), the comb tooth offsets corresponding to the three ports corresponding to the SRS resource are the same, for example, the comb tooth offsets corresponding to the three ports are the same. The calculation formula for the CS value corresponding to each of the three ports may be, for example:

[0208]

[0209] or,

[0210]

[0211] For example, when and (that is, three ports corresponding to SRS resources), the frequency domain resources of the SRS of the first port and the second port of the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port of the above three ports. The comb tooth offset corresponding to the frequency domain resource of the SRS of the port with port number pi satisfies the following formula:

[0212]

[0213] The CS value corresponding to each of the three ports satisfies the following formula, for example:

[0214]

[0215] In another example, when the terminal device supports three designs, namely, design 1, design 2, and design 3, the value range of the CS value of the reference port can be divided into three sections, such as Each segment corresponds to a design.

[0216] For example, when and (ie, three ports corresponding to the SRS resource), the comb tooth offsets corresponding to the three ports corresponding to the SRS resource are the same, for example, the comb tooth offsets corresponding to the three ports are the same. The calculation formula for the CS value corresponding to each of the three ports may be, for example:

[0217]

[0218] or,

[0219]

[0220] when and (that is, three ports corresponding to SRS resources), the frequency domain resources of the SRS of the first port and the second port of the above three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port of the above three ports. The comb tooth offset corresponding to the frequency domain resource of the SRS of the port with port number pi satisfies the following formula:

[0221]

[0222] The CS value corresponding to each of the three ports satisfies the following formula, for example:

[0223]

[0224] when and (ie, three ports corresponding to the SRS resources), the frequency domain resources of the SRS of the three ports correspond to three different comb tooth offsets. For example, the comb tooth offset corresponding to the frequency domain resources of the SRS of each port satisfies the following formula:

[0225] or,

[0226] or,

[0227]

[0228] In addition, the CS value corresponding to each of the three ports mentioned above

[0229] Step 420: The terminal device sends the SRS resources corresponding to the three ports to the network device. Correspondingly, the network device receives the SRS resources corresponding to the three ports.

[0230] After the terminal device determines the CS value and comb tooth offset corresponding to each of the three ports, it sends the SRS of the three ports to the network device through the SRS resource.

[0231] Based on the above technical solution, the terminal device can receive the configuration information of the SRS resource, and determine the CS value and comb tooth offset of each of the three ports corresponding to the SRS resource based on the maximum number of CS values ​​included in the configuration information, the comb tooth offset of the reference port, and the CS value of the reference port. In this way, the terminal device can generate the SRS of the three ports based on the CS values ​​and comb tooth offsets corresponding to the three ports, and then send the SRS resources corresponding to the three ports to the network device.

[0232] Figures 12 to 15 A schematic diagram of the structure of a possible communication device provided in an embodiment of the present application.

[0233] Fig.12 It is a schematic block diagram of a communication device 1200 provided in an embodiment of the present application.

[0234] like Fig.12 As shown, the communication device 1200 includes a first transceiver module 1210 and a second transceiver module 1220 .

[0235] The above-mentioned device 1200 can be used to implement the above-mentioned Figure 4 The function of the terminal device in the method embodiment shown, or the above-mentioned device 1200 is used to implement the above-mentioned Figure 4 The functions of the network device in the method embodiment are shown.

[0236] When the device 1200 is used to implement Figure 4In the method embodiment shown in FIG. 1 , the first transceiver module 1210 can be used to receive configuration information of SRS resources, wherein the SRS resources correspond to three ports, and the configuration information includes the maximum number of CS values. Comb offset at reference port and the CS value of the reference port The reference port is a predefined port among the three ports; the second transceiver module 1220 may be configured to send the SRS resources corresponding to the three ports to the network device.

[0237] When the device 1200 is used to implement Figure 4 In the method embodiment shown in FIG. 1 , the first transceiver module 1210 can be used to send configuration information of SRS resources to the terminal device, wherein the SRS resources correspond to three ports, and the configuration information includes the maximum number of CS values. Comb offset at reference port and the CS value of the reference port The reference port is a predefined port among the three ports; the second transceiver module 1220 may be configured to receive SRS resources corresponding to the three ports.

[0238] For more detailed description of the first transceiver module 1210 and the second transceiver module 1220, please refer to Figure 4 The relevant description in the method embodiment shown is directly obtained and will not be repeated here.

[0239] It should be understood that the division of modules in the embodiments of the present application is schematic and is only a logical function division. There may be other division methods in actual implementation. In addition, each functional module in each embodiment of the present application may be integrated into a processor, or may exist physically separately, or two or more modules may be integrated into one module. The above-mentioned integrated modules may be implemented in the form of hardware or in the form of software functional modules.

[0240] Fig.13 1 is another schematic block diagram of a communication device 1300 provided in an embodiment of the present application. The device 1300 may be a chip system, or may be a device configured with a chip system for implementing the method described in the above method embodiment. In the embodiment of the present application, the chip system may be composed of a chip, or may include a chip and other discrete devices.

[0241] like Fig.13As shown, the device 1300 may include a processor 1310 and a communication interface 1320. The communication interface 1320 may be used to communicate with other devices through a transmission medium, so that the device 1300 can communicate with other devices. The communication interface 1320 may be, for example, a transceiver, an interface, a bus, a circuit, or a device capable of implementing transceiver functions. The processor 1310 may use the communication interface 1320 to input and output data, and to implement Figure 4 Specifically, the device 1300 can be used to implement the functions of the network device or terminal device in the above method embodiment.

[0242] Optionally, the device 1300 also includes at least one memory 1330 for storing program instructions and / or data. The memory 1330 is coupled to the processor 1310. The coupling in the embodiment of the present application is an indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules. The processor 1310 may operate in conjunction with the memory 1330. The processor 1310 may execute program instructions stored in the memory 1330. At least one of the at least one memory may be included in the processor.

[0243] The specific connection medium between the processor 1310, the communication interface 1320 and the memory 1330 is not limited in the embodiment of the present application. Fig.13 The processor 1310, the communication interface 1320 and the memory 1330 are connected via a bus 1340. The bus 1340 is connected to the processor 1310, the communication interface 1320 and the memory 1330 via a bus 1340. Fig.13 The connections between the other components are shown in bold lines, which are only for illustration and are not intended to be limiting. The bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Fig.13 Only one thick line is used in the diagram, but this does not mean that there is only one bus or only one type of bus.

[0244] Fig.14It is a structural diagram of a network device provided in an embodiment of the present application, for example, it can be a structural diagram of a base station, and the base station is an example of a network device. As shown in the figure, the base station 1400 may include one or more DUs 1410 and one or more CUs 1420. CU 1420 can communicate with the next generation core network (NG core, NC). The DU 1410 may include at least one antenna 1411, at least one radio unit 1412, at least one processor 1413 and at least one memory 1414. The DU 1410 part is mainly used for receiving and transmitting radio frequency signals and converting radio frequency signals to baseband signals, as well as partial baseband processing. CU 1420 may include at least one processor 1422 and at least one memory 1421. CU 1420 and DU 1410 can communicate through an interface, wherein the control plane (control plane, CP) interface may be Fs-C, such as F1-C, and the user plane (user plane, UP) interface may be Fs-U, such as F1-U.

[0245] The CU 1420 is mainly used for baseband processing and base station control. The DU 1410 and CU 1420 can be physically set together or physically separated, that is, a distributed base station. The CU 1420 is the control center of the base station, which can also be called a processing unit and is mainly used to complete the baseband processing function. For example, the CU 1420 can be used to control the base station to execute Figure 3 The method is performed by the network device in the illustrated embodiment.

[0246] In one example, the CU 1420 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 1421 and the processor 1422 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may be set on each board. The DU 1410 may be composed of one or more boards, and the multiple boards may jointly support a wireless access network (such as a 5G network) with a single access indication, or may respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, or other networks). The memory 1414 and the processor 1413 may serve one or more boards. In other words, a memory and a processor may be separately set on each board. It may also be that multiple boards share the same memory and processor. In addition, necessary circuits may also be set on each board.

[0247] It should be understood that Fig.14The base station 1400 shown is only one possible architecture of the network device and should not constitute any limitation to the present application. The method provided in the present application can be applied to network devices of other architectures. For example, a network device including a CU, a DU and an active antenna processing unit (active antenna anit, AAU), etc. The present application does not limit the specific architecture of the network device.

[0248] Fig.15 1 is a schematic diagram of the structure of a terminal device 1500 provided in an embodiment of the present application. The terminal device 1500 can be used to implement Figure 4 The steps performed by the terminal device in the embodiment shown. Fig.15 As shown, the terminal device 1500 includes a processor 1501 and a transceiver 1502 .

[0249] Optionally, the terminal device 1500 further includes a memory 1503. The processor 1501, the transceiver 1502 and the memory 1503 can communicate with each other through an internal connection path to transmit control and / or data signals, the memory 1503 is used to store a computer program, and the processor 1501 is used to call and run the computer program from the memory 1503 to control the transceiver 1502 to send and receive signals.

[0250] Optionally, the terminal device 1500 may further include an antenna 1504 for transmitting the uplink data or uplink control signaling output by the transceiver 1502 through a wireless signal. Optionally, the terminal device 1500 may further include a Wi-Fi module 1511 for accessing a wireless network.

[0251] The processor 1501 and the memory 1503 may be combined into a processing device, and the processor 1501 is used to execute the program code stored in the memory 1503 to implement the above functions. In specific implementation, the memory 1503 may also be integrated into the processor 1501, or independent of the processor 1501.

[0252] The transceiver 1502 can be used with Fig.12 The first transceiver module 1210, the second transceiver module 1220 or Fig.13 The transceiver 1502 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). The receiver is used to receive signals, and the transmitter is used to transmit signals.

[0253] Optionally, the terminal device 1500 may further include a power supply 1505 for providing power to various devices or circuits in the terminal device 1500 .

[0254] In addition, in order to make the functions of the terminal device more complete, the terminal device 1500 may also include one or more of an input unit 1506, a display unit 1507, an audio circuit 1508, a camera 1509 and a sensor 1510, and the audio circuit may also include a speaker 1508a, a microphone 1508b, etc.

[0255] It should be understood that the operations and / or functions of each module in the terminal device 1500 are respectively for implementing the corresponding processes in the above method embodiments. For details, please refer to the description in the above method embodiments. To avoid repetition, the detailed description is appropriately omitted here.

[0256] The present application also provides a computer program product, the computer program product comprising: a computer program (also referred to as code, or instruction), when the computer program is executed, Figure 4 The method described in the illustrated embodiment.

[0257] The present application also provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program (also referred to as code or instruction). When the computer program is executed, Figure 4 The method described in the illustrated embodiment.

[0258] An embodiment of the present application provides a communication system, which includes a terminal device and a network device as described above.

[0259] It should be understood that the processor in the embodiment of the present application can be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method embodiment can be completed by the hardware integrated logic circuit or software instructions in the processor. The above processor can be a general processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to perform, or the hardware and software modules in the decoding processor can be combined to perform. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0260] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0261] The terms "unit", "module", etc. used in this specification may be used to represent computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution. The units and modules in the embodiments of the present application have the same meaning and can be used interchangeably.

[0262] It will be appreciated by those skilled in the art that the various illustrative logical blocks and steps described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or in combination with computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application. In the several embodiments provided in this application, it should be understood that the disclosed devices, equipment and methods can be implemented in other ways. For example, the device embodiments described above are only schematic, for example, the division of the units is only a logical function division, and there may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point, the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0263] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0264] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0265] In the above embodiments, the functions of each functional unit can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions (programs). When the computer program instructions (programs) are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0266] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the technology or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform 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 USB flash drives, mobile hard drives, ROM, RAM, magnetic disks, or optical disks.

[0267] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for transmitting a reference signal, characterized in that: include: Receive configuration information of a sounding reference signal SRS resource, the SRS resource corresponds to three ports, and the configuration information includes: the maximum number of cyclic shift CS values Comb offset at reference port and the CS value of the reference port The reference port is a predefined port among the three ports; The SRS resources corresponding to the three ports are sent to the network device.

2. The method according to claim 1, characterized in that When the frequency domain resources of the SRS of X ports among the three ports correspond to the same comb tooth offset, the minimum value of the difference between any two CS values ​​among the X CS values ​​corresponding to the X ports is or Wherein, X is an integer less than or equal to 3 and greater than 1.

3. The method according to claim 2, characterized in that The frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port.

4. The method according to claim 3, characterized in that The difference between the CS value corresponding to the third port and the CS value of the reference port changes as the CS value of the reference port changes.

5. The method according to claim 4, characterized in that The CS value corresponding to the third port satisfy: in, For Follow The changing function value, The value is an integer, and mod means the remainder operation.

6. The method according to claim 5, characterized in that The CS value corresponding to the third port satisfy: in, m is an integer.

7. The method according to any one of claims 3 to 6, characterized in that The CS value corresponding to the port with port number pi among the three ports Satisfies the following formula: in, With port number and Related, mod means remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

8. The method according to claim 7, characterized in that The CS value corresponding to the port with port number pi among the three ports Satisfies the following formula: in, 9. The method according to claim 7 or 8, characterized in that when and or 2, the CS value corresponding to the port with port number pi among the three ports is Satisfies the following formula: in, 10. The method according to any one of claims 3 to 9, characterized in that The comb offset corresponding to the port with port number pi among the three ports Satisfies the following formula: in, Indicates the number of ports is 3, K TC Indicates the comb tooth degree, mod indicates the modulus operation, and the port number 1000 is the reference port.

11. The method according to claim 2, characterized in that The frequency domain resources of the SRS of each of the three ports correspond to the same comb tooth offset.

12. The method according to claim 11, characterized in that The CS value corresponding to the port with port number pi among the three ports Satisfies the following formula: or Among them, mod represents the remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

13. The method according to claim 1, characterized in that The frequency domain resources of the SRS of each of the three ports correspond to three different comb tooth offsets.

14. The method according to any one of claims 1 to 13, characterized in that The number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is predefined or indicated by the network device.

15. The method according to claim 14, characterized in that When the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is indicated by the network device, the number of comb tooth offsets corresponding to the frequency domain resources of the SRS of the three ports is related to the value range of the CS value of the reference port.

16. A method for transmitting a reference signal, characterized in that: include: Send the configuration information of the sounding reference signal SRS resource to the terminal device, the SRS resource corresponds to three ports, and the configuration information includes the maximum number of cyclic shift CS values Comb offset at reference port and the CS value of the reference port The reference port is a predefined port among the three ports; The SRS resources corresponding to the three ports are received.

17. The method according to claim 16, characterized in that When the frequency domain resources of the SRS of X ports among the three ports correspond to the same comb tooth offset, the minimum value of the difference between any two CS values ​​among the X CS values ​​corresponding to the X ports is or Wherein, X is an integer less than or equal to 3 and greater than 1.

18. The method according to claim 17, characterized in that The frequency domain resources of the SRS of the first port and the second port among the three ports correspond to different comb tooth offsets from the frequency domain resources of the SRS of the third port among the three ports, wherein the reference port is the first port or the second port.

19. The method according to claim 18, characterized in that The difference between the CS value corresponding to the third port and the CS value of the reference port changes as the CS value of the reference port changes.

20. The method of claim 19, wherein: The CS value corresponding to the third port satisfy: in, Follow The changing function value, The value is an integer, and mod means the remainder operation.

21. The method of claim 20, wherein: The CS value corresponding to the third port satisfy: in, m is an integer.

22. The method according to any one of claims 18 to 21, characterized in that The CS value corresponding to the port with port number pi among the three ports Satisfies the following formula: in, With port number and Related, mod means remainder operation, the value of pi is 1000, 1001 or 1002, and the port number 1000 is the reference port.

23. The method of claim 22, wherein: The CS value corresponding to the port with port number pi among the three ports Satisfies the following formula: in, 24. The method according to claim 22 or 23, characterized in that when and or 2, the CS value corresponding to the port with port number pi among the three ports is Satisfies the following formula: in, 25. The method according to any one of claims 18 to 24, characterized in that The comb offset corresponding to the port with port number pi among the three ports Satisfies the following formula: in, Indicates the number of ports is 3, K TC Indicates the comb tooth degree, mod indicates the modulus operation, and the port number 1000 is the reference port.

26. A communication device, characterized in that: The method comprises a module for implementing the method according to any one of claims 1 to 15, or comprises a module for implementing the method according to any one of claims 16 to 25.

27. A communication device, characterized in that: comprising a processor and a memory, wherein: The memory is used to store computer programs; The processor is configured to call the computer program so that the apparatus implements the method according to any one of claims 1 to 15, or the apparatus implements the method according to any one of claims 16 to 25.

28. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by a computer, the method according to any one of claims 1 to 15 is implemented, or the method according to any one of claims 16 to 25 is implemented.

29. A computer program product, characterized in that The computer program product comprises instructions, and when the instructions are executed by a computer, the method according to any one of claims 1 to 15 is implemented, or the method according to any one of claims 16 to 25 is implemented.

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