Uplink reference signal transmission method, reception method, device and storage medium

Abstract

Embodiments of the present application provide an uplink reference signal sending method, a receiving method, a device and a storage medium. The method comprises: a terminal sending a first SRS resource; wherein the first SRS resource comprises X ports, the first SRS resource is sent through Y symbols, and X and Y are integers greater than 1, and X<=Y. The embodiments of the present application can realize the sending of a multi-port SRS resource. In addition, the embodiments of the present application specify the receiving mode of the SRS resource and the determination mode of the sending codebook of the PUSCH when the SRS resource is partially symbol collided, can ensure the consistency of the understanding of the base station and the terminal, and improve the uplink transmission performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mobile communication, in particular to an uplink reference signal sending method, receiving method, device and storage medium. BACKGROUND

[0002] The codebook-based physical uplink shared channel (PUSCH) codebook determination procedure includes the following steps:

[0003] 1) One SRS resource set for codebook is configured for the terminal (User Equipment, UE). Specifically, the number of SRS resources in each SRS resource set is determined according to the UE capability, and usually at most two SRS resources are transmitted; and the number of ports of each SRS resource is determined according to the UE capability, and each SRS resource can be one port, two ports or four ports (1 / 2 / 4 port), and each SRS resource can only be transmitted on one symbol;

[0004] 2) The base station indicates the SRS resource indicator (SRI) through the DCI format 0_1 (DCI format 0_1), and the terminal finds the SRS resource in the SRS resource set that is transmitted most recently before receiving the downlink control information (DCI); the terminal determines the PUSCH transmission codebook according to the transmission codebook of the SRS resource, for example, as shown in Figure 1 The UE transmits two SRS resources, SRS0 and SRS1, and the base station selects SRI0 through SRI, which means that the terminal transmits PUSCH in the beam direction of SRS0.

[0005] Large commercial terminals such as customer premise equipment (CPE) and fixed wireless access (FWA) have higher requirements for the number of uplink data transmission streams, but the existing technology does not support terminals with more than 4 transmit antennas (4T) to perform uplink transmission of more than 4 streams. In order to support more stream uplink transmission, it is necessary to support the configuration of more port SRS in SRS-codebook, for example, 8-port SRS (8-port SRS). After configuring the multi-port SRS resource, how to perform SRS transmission is a technical problem to be solved at present. SUMMARY

[0006] At least one embodiment of the present application provides an uplink reference signal sending method, receiving method, device and storage medium, which are used to realize sending of multi-port SRS resources.

[0007] To solve the above technical problems, the present application is implemented as follows:

[0008] In a first aspect, the embodiments of the present application provide an uplink reference signal sending method, comprising:

[0009] The terminal sends a first SRS resource; wherein the first SRS resource includes X ports, the first SRS resource is sent through Y symbols, and X and Y are both integers greater than 1, and X≤Y.

[0010] Optionally, the sending of the first SRS resource comprises:

[0011] When Z symbols for transmitting the first SRS resource conflict with other uplink signals, the SRS resource on the Z symbols is discarded, and the SRS resource on the symbols other than the Z symbols is sent, Z is an integer greater than or equal to 1 and less than or equal to Y.

[0012] Optionally, the above method further comprises:

[0013] A first DCI is received, the first DCI is used to schedule PUSCH transmission, and an SRI in the first DCI indicates a first ID;

[0014] In the case that the first SRS resource is the SRS resource of the first ID that the terminal has recently sent before the first DCI, if part of the symbols of the first SRS resource are discarded, when there are multiple sent SRS resources, a sending codebook of the PUSCH is determined according to the first SRS resource; or when there are no multiple sent SRS resources, a sending codebook of the PUSCH is determined according to a second SRS resource;

[0015] The multiple sent SRS resources include the first SRS resource and at least one SRS resource sent by the terminal before the first SRS resource, the multiple sent SRS resources cover all ports of the SRS resource of the first ID, and the first parameters and resource IDs of the multiple sent SRS resources are the same; the first parameters include one or more of transmission power, TCI state and spatial relationship information.

[0016] The second SRS resource is a first ID SRS resource transmitted before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0017] Optionally, the method further comprises:

[0018] According to the following steps, it is determined whether the plurality of transmitted SRS resources exist:

[0019] The first ID SRS resource transmitted before the first SRS resource is searched in reverse order of time;

[0020] When the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all the found SRS resources and the transmitted symbols of the first SRS resource can cover all the ports of the first ID SRS resource, it is determined that the plurality of transmitted SRS resources exist; or if all the found SRS resources and the transmitted symbols of the first SRS resource cannot cover all the ports of the first ID SRS resource, the first ID SRS resource is continuously searched;

[0021] When the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the search is ended and it is determined that the plurality of transmitted SRS resources do not exist.

[0022] Optionally, the method further comprises:

[0023] A first DCI is received, the first DCI is used for scheduling PUSCH transmission, and the SRI in the first DCI indicates the first ID;

[0024] In the case where the first SRS resource is the first ID SRS resource transmitted by the terminal most recently before the first DCI, when all the symbols of the first SRS resource are transmitted, the transmission codebook of the PUSCH is determined according to the first SRS resource.

[0025] Optionally, the method further comprises:

[0026] A first DCI is received, the first DCI is used for scheduling PUSCH transmission, and the SRI in the first DCI indicates the first ID;

[0027] In the case where the first SRS resource is the first ID SRS resource transmitted by the terminal most recently before the first DCI, when part of the symbols of the first SRS resource are discarded, the transmission codebook of the PUSCH is determined according to the third SRS resource; or when all the symbols of the first SRS resource are transmitted, the transmission codebook of the PUSCH is determined according to the first SRS resource;

[0028] wherein the third SRS resource is a first ID SRS resource transmitted before the first SRS resource, and all symbols of the third SRS resource are transmitted.

[0029] Optionally, the method further includes:

[0030] When the first parameter effective time is located between the symbols of the first SRS resource, determining the first parameter of the first SRS resource according to the time domain position of the first symbol corresponding to the first SRS resource, wherein the first parameter includes one or more of the transmission power, the TCI state and the spatial relationship information.

[0031] Optionally, the method further includes:

[0032] Receiving first indication information for updating the first parameter, and determining the effective time of the first parameter updated by the first indication information based on the first indication information.

[0033] In a second aspect, an embodiment of the present application provides an uplink reference signal receiving method, including:

[0034] Receiving a first SRS resource transmitted by a terminal; wherein the first SRS resource includes X ports, and the first SRS resource is transmitted through Y symbols, and X and Y are both integers greater than 1, and X≤Y.

[0035] Optionally, the receiving the first SRS resource transmitted by the terminal includes:

[0036] When Z symbols of the first SRS resource conflict with other uplink signals, canceling receiving the SRS resource on the Z symbols, and receiving the SRS resource on other symbols except the Z symbols, wherein the other uplink signals are uplink signals other than SRS transmitted by the terminal.

[0037] Optionally, the method further includes:

[0038] Transmitting a first DCI to the terminal, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0039] In a case where the first SRS resource is a first ID SRS resource recently transmitted by the terminal before the first DCI, if part of the symbols of the first SRS resource are discarded, when there are multiple transmitted SRS resources, determining a transmission codebook of the PUSCH transmitted by the terminal according to the first SRS resource; or when there are no multiple transmitted SRS resources, determining the transmission codebook of the PUSCH according to a second SRS resource.

[0040] The multiple transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource, cover all ports of the SRS resource of the first ID, and have the same first parameter and resource ID as the first SRS resource.

[0041] The second SRS resource is an SRS of the first ID transmitted before the first SRS resource, has a different first parameter from the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0042] Optionally, the method further includes:

[0043] The method further includes:

[0044] The method further includes:

[0045] When the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all the found SRS resources and the transmitted symbols of the first SRS resource can cover all ports of the SRS resource of the first ID, it is determined that the multiple transmitted SRS resources exist; or if all the found SRS resources and the transmitted symbols of the first SRS resource cannot cover all ports of the SRS resource of the first ID, the SRS resource of the first ID is continuously found.

[0046] When the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0047] Optionally, the method further includes:

[0048] The method further includes:

[0049] When the first SRS resource is the SRS resource of the first ID most recently transmitted by the terminal before the first DCI, when all symbols of the first SRS resource are transmitted, the transmission codebook of the terminal for transmitting the PUSCH is determined according to the first SRS resource.

[0050] Optionally, the method further includes:

[0051] The first DCI is sent to the terminal, the first DCI is used for scheduling PUSCH transmission, and the SRI in the first DCI indicates the first ID;

[0052] In the case that the first SRS resource is the SRS resource of the first ID sent by the terminal most recently before the first DCI, when part of the symbols of the first SRS resource are discarded, the sending codebook of the terminal sending the PUSCH is determined according to the third SRS resource; or when all the symbols of the first SRS resource are transmitted, the sending codebook of the terminal sending the PUSCH is determined according to the first SRS resource;

[0053] The third SRS resource is the SRS of the first ID sent before the first SRS resource, and all the symbols of the third SRS resource are transmitted.

[0054] Optionally, the above method further comprises:

[0055] When the first parameter effective time is located between the symbols of the first SRS resource, the first parameter of the first SRS resource is determined according to the time domain position of the first symbol corresponding to the first SRS resource, wherein the first parameter includes one or more of the transmission power, the TCI state and the spatial relationship information.

[0056] Optionally, the above method further comprises:

[0057] The first indication information for updating the first parameter is sent to the terminal, and the effective time of the first parameter updated by the first indication information is determined based on the first indication information.

[0058] Optionally, the above method further comprises:

[0059] In the case that the plurality of sent SRS resources exist, channel estimation is performed based on the plurality of sent SRS resources.

[0060] Optionally, the channel estimation based on the plurality of sent SRS resources comprises any one of the following:

[0061] From the plurality of received sent SRS resources, a symbol combination of the SRS resources is extracted, the symbol combination covers all ports of the SRS resources and each port is not repeated; channel estimation is performed based on the symbol combination;

[0062] The symbols of the plurality of received sent SRS resources are combined, wherein the symbols corresponding to the same SRS resource port are merged to obtain a symbol combination including all ports of the SRS resources; channel estimation is performed based on the symbol combination.

[0063] In a third aspect, an embodiment of the present application provides a terminal, comprising a transceiver and a processor, wherein the transceiver is configured to send a first SRS resource; and the processor is configured to determine the first SRS resource.

[0064] The transceiver is configured to send a first SRS resource; wherein the first SRS resource comprises X ports, and the first SRS resource is sent through Y symbols, wherein X and Y are integers greater than 1, and X≤Y.

[0065] In a fourth aspect, an embodiment of the present application provides a first network device, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, and the program, when executed by the processor, implements the steps of the method in the first aspect.

[0066] In a fifth aspect, an embodiment of the present application provides a network device, comprising a transceiver and a processor, wherein the transceiver is configured to receive a first SRS resource sent by a terminal; and the processor is configured to determine the first SRS resource.

[0067] The transceiver is configured to receive a first SRS resource sent by a terminal; and the processor is configured to determine the first SRS resource, wherein the first SRS resource comprises X ports, and the first SRS resource is sent through Y symbols, wherein X and Y are integers greater than 1, and X≤Y.

[0068] In a sixth aspect, an embodiment of the present application provides a second network device, comprising a processor, a memory, and a program stored in the memory and capable of running on the processor, and the program, when executed by the processor, implements the steps of the method in the second aspect.

[0069] In a seventh aspect, an embodiment of the present application provides a computer readable storage medium, and the computer readable storage medium stores a program, and the program, when executed by a processor, implements the steps of the method.

[0070] Compared with the prior art, the uplink reference signal sending method, receiving method, device, and storage medium provided by the embodiments of the present application can implement the sending of a multi-port SRS resource. In addition, the embodiments of the present application specify the receiving mode of the SRS resource and the determination mode of the PUSCH sending codebook when the SRS resource has a partial symbol conflict, which can ensure the consistency of the understanding of the base station and the terminal and improve the uplink transmission performance. BRIEF DESCRIPTION OF DRAWINGS

[0071] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The accompanying drawings are intended to further aid the full and complete understanding of the preferred embodiments. The drawings are merely schematic and are not considered limiting of the present application. Throughout the drawings, like reference numerals are used to designate like parts. In the drawings:

[0072] Figure 1 is a schematic diagram of the sending of an SRS.

[0073] Figure 2 An application scenario diagram of an embodiment of the present application;

[0074] Figure 3 A transmission example diagram of multi-symbol SRS of an embodiment of the present application;

[0075] Figure 4 A flow chart of an uplink reference signal transmission method of an embodiment of the present application;

[0076] Figures 5-10 Several transmission example diagrams of multi-symbol SRS of an embodiment of the present application;

[0077] Figure 11 An example diagram of updating SRS transmission power or TCI state / space relation information of an embodiment of the present application;

[0078] Figure 12 A flow chart of an uplink reference signal reception method of an embodiment of the present application;

[0079] Figure 13 A structure diagram of a terminal of an embodiment of the present application;

[0080] Figure 14 A structure diagram of a terminal of another embodiment of the present application;

[0081] Figure 15 A structure diagram of a network device of an embodiment of the present application;

[0082] Figure 16 A structure diagram of a network device of another embodiment of the present application;

[0083] Figure 17 A structure diagram of a terminal of yet another embodiment of the present application;

[0084] Figure 18 A structure diagram of a network device of yet another embodiment of the present application. DETAILED DESCRIPTION

[0085] Exemplary embodiments of the present application will be described hereinafter with reference to the accompanying drawings. While exemplary embodiments of the present application are shown, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art.

[0086] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The terms “and / or” in the specification and claims indicate at least one of the connected objects.

[0087] The technology described herein is not limited to NR systems and Long Time Evolution (LTE) / LTE-Advanced (LTE-A) systems, and can also be used for various wireless communication systems such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably. A CDMA system can implement a radio technology such as CDMA2000, Universal Terrestrial Radio Access (UTRA), etc. UTRA includes Wideband-CDMA (WCDMA) and other variants of CDMA. A TDMA system can implement a radio technology such as Global System for Mobile Communications (GSM). An OFDMA system can implement a radio technology such as Ultra Mobile Broadband (UMB), Evolution-UTRA (E-UTRA), IEEE 802.21 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash-OFDM, etc. UTRA and E-UTRA are part of Universal Mobile Telecommunication System (UMTS). LTE and LTE-Advanced (e.g., LTE-A) are new releases of UMTS that use E-UTRA. UTRA, E-UTRA, UMTS, LTE, LTE-A, and GSM are described in documents from an organization called the "3rd Generation Partnership Project" (3GPP). CDMA2000 and UMB are described in documents from an organization called the "3rd Generation Partnership Project 2" (3GPP2).The techniques described herein can be used for the systems and radio technologies mentioned above as well as other systems and radio technologies. The description above, however, describes techniques in one exemplary context of NR systems, and uses NR terminology in much of the description above, although the techniques can be applied in other contexts than NR systems.

[0088] The following description provides examples, and is not limiting of the scope, applicability, or configuration set forth in the claims. Changes can be made in the function and arrangement of elements discussed without departing from the scope and spirit of aspects of the disclosure. Various examples can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and other steps can be added, omitted, or combined. Also, features described with respect to certain examples can be combined in other examples.

[0089] See Figure 2 , Figure 2 A block diagram of a wireless communication system to which embodiments of the present application can be applied is shown. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 can also be referred to as a user terminal or a user equipment (UE), and the terminal 11 can be a terminal-side device such as a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a mobile Internet device (MID), a wearable device, or a vehicle-mounted device, for example. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application. The network device 12 can be a base station and / or a core network element. The base station can be a base station of 5G and later versions (e.g., gNB, 5G NR NB, etc.), or a base station in other communication systems (e.g., eNB, WLAN access point, or other access points, etc.). The base station can be referred to as a node B, an evolved node B, an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a B node, an evolved B node (eNB), a home B node, a home evolved B node, a WLAN access point, a WiFi node, or some other suitable terminology in the art, provided that the same technical effect is achieved, and the base station is not limited to a specific technical term. It should be noted that only the base station in the NR system is taken as an example in the embodiments of the present application, but the specific type of the base station is not limited.

[0090] The base stations can communicate with the terminals 11 under the control of a base station controller, which can be part of the core network or of certain base stations in various examples. Some of the base stations can communicate control information or user data with the core network over a backhaul. In some examples, some of these base stations can communicate with one another directly or indirectly through backhaul links, which can be wired or wireless communication links. The wireless communication system can support operation on multiple carriers (waveform signals of different frequencies). Multi-carrier transmitters can transmit modulated signals simultaneously on the multiple carriers. For example, each communication link can be a multi-carrier signal modulated according to the various radio technologies. Each modulated signal can be sent on a different carrier and can carry control information (e.g., reference signals, control channels, etc.), overhead information, data, etc.

[0091] The base stations can wirelessly communicate with the terminals 11 via one or more access point antennas. Each base station can provide communication coverage for a respective geographic area. The coverage area for each base station can be divided into sectors making up only a portion of the coverage area. The wireless communication system can include base stations of different types (e.g., macro, micro, or pico base stations). The base stations can utilize different radio technologies, such as cellular or WLAN radio access technologies. The base stations can be associated with the same or different access networks or operator deployments. The coverage areas of different base stations, including the coverage areas of base stations of the same or different types, utilizing the same or different radio technologies, or belonging to the same or different access networks, can overlap.

[0092] Communication links in a wireless communication system can include uplinks for carrying Uplink (UL) transmissions (e.g., from a terminal 11 to a network device 12) or downlinks for carrying Downlink (DL) transmissions (e.g., from a network device 12 to a terminal 11). UL transmissions can also be called reverse link transmissions, and DL transmissions can also be called forward link transmissions. Downlink transmissions can be made using a licensed spectrum, an unlicensed spectrum, or both. Similarly, uplink transmissions can be made using a licensed spectrum, an unlicensed spectrum, or both.

[0093] In the case that the SRS resource includes multiple ports, these ports can be transmitted through multiple symbols. For example, 8 ports of an 8-port SRS resource can be transmitted through multiple symbols in a time division multiplexing (TDM) manner. For example, ports 1, 3, 5, and 7 can be transmitted through symbol 1, and ports 2, 4, 6, and 8 can be transmitted through symbol 2. In this paper, the transmission of a port of an SRS resource through a symbol means that the data stream of the port of the SRS resource is mapped to the symbol for transmission. In the case of a conflict between an SRS resource and other uplink signals, the transmission behavior can be determined according to the priority. Assuming that the following priority relationship exists: aperiodic SRS (AP-SRS) > physical uplink control channel (PUCCH) > semi-persistent SRS (SP-SRS) > periodic SRS (P-SRS), when a periodic SRS and a PUCCH conflict, the PUCCH is transmitted and the periodic SRS is discarded.

[0094] In the case of transmission of an SRS resource through multiple symbols, part of the symbols can conflict with other uplink signals, and the remaining symbols do not conflict. For example, for an 8-port SRS resource transmitted through TDM on 2 symbols, when 1 of the symbols conflicts with other uplink signals, the prior art does not provide a specific processing method.

[0095] In addition, especially when the terminal receives DCI scheduling PUSCH transmission, the SRS resource indicated by the SRI in the DCI is the SRS resource most recently transmitted by the terminal before receiving the DCI. Assuming that the ports of the SRS resource are transmitted on N symbols, and at least 1 symbol and at most N-1 symbols of the SRS resource conflict with other uplink signals. Here, N is an integer greater than or equal to 2. As shown in FIG. 8, an 8-port SRS resource is transmitted through two symbols, Figure 3 and the SRS resource is transmitted through the other symbol. In this case, the terminal can transmit the PUCCH and discard the SRS resource. Figure 3There are two SRS resources with resource IDs 0 and 1, i.e., SRS0 and SRS1, in the case, wherein ports 1, 3, 5 and 7 of SRS0 and SRS1 are transmitted through one symbol, and ports 2, 4, 6 and 8 are transmitted through another symbol. For example, SRS0 and SRS1 are both normally transmitted in slots 0 and 1; in slot 2, SRS0 is normally transmitted, while the symbols mapped by ports 2, 4, 6 and 8 of SRS1 conflict with other uplink signals, so the data streams of ports 2, 4, 6 and 8 of SRS1 are discarded. Assuming that the terminal receives a DCI in slot 3, the PUSCH scheduled by the DCI is transmitted in slot 3+K (here, K is an integer greater than or equal to 1), the SRI of the DCI is 1, and the indicated SRS resource is SRS1. The SRS1 most recently transmitted by the terminal before slot 3 is the SRS1 transmitted in slot 2, and part of the symbols of the SRS1 are discarded due to conflict with other uplink signals. For this case, the processing behaviors of the terminal and the network device are not determined. Figure 3 、 Figures 5-10 In the case, x is used to represent that the symbol of the SRS resource where the x is located is discarded.

[0096] Please refer to Figure 4 The uplink reference signal transmission method provided in the embodiments of the present application, when applied to the terminal side, comprises the following steps:

[0097] In step 41, the terminal transmits a first SRS resource; wherein the first SRS resource comprises X ports, and the first SRS resource is transmitted through Y symbols, wherein X and Y are both integers greater than 1, and X≤Y.

[0098] Through the above steps, the embodiments of the present application realize the transmission of the SRS resource with multiple ports.

[0099] After step 41, the terminal can transmit the first SRS resource based on the determined transmission mode.

[0100] In step 41, when transmitting the first SRS resource, the following steps are specifically included:

[0101] When Z symbols for transmitting the first SRS resource conflict with other uplink signals, discard the SRS resource on the Z symbols, and transmit the SRS resource on the symbols other than the Z symbols, wherein Z is an integer greater than or equal to 1 and less than or equal to Y, and the other uplink signals are uplink signals other than SRS transmitted by the terminal.

[0102] Continuing with Figure 3For example, assume that SRS1 in slot 2 is the first SRS resource, and ports 1, 3, 5 and 7 of the first SRS resource are transmitted through one symbol (for ease of description, referred to as the first symbol herein), and ports 2, 4, 6 and 8 of the first SRS resource are transmitted through another symbol (for ease of description, referred to as the second symbol herein). When the second symbol (i.e., the symbol of the data stream of ports 2, 4, 6 and 8 of the first SRS resource) conflicts with other uplink signals that need to be transmitted by the terminal, the terminal discards the SRS resource on the second symbol, i.e., discards the data stream of the first SRS resource on ports 2, 4, 6 and 8, and only transmits the SRS resource of the first symbol, i.e., only transmits the data stream of the first SRS resource on ports 1, 3, 5 and 7.

[0103] As an implementation manner, in the embodiment of the present application, after the step 41, the terminal can further receive a first DCI, the first DCI is used for scheduling PUSCH transmission, and the SRS resource ID indicated by the SRI in the first DCI is a first ID. Assuming that the first SRS resource is the SRS resource of the first ID that is most recently transmitted by the terminal before the first DCI, if part of the symbols of the first SRS resource are discarded, when there are multiple transmitted SRS resources, the transmission codebook of the PUSCH is determined according to the first SRS resource.

[0104] Here, the multiple transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource, the symbols transmitted by the multiple transmitted SRS resources can cover all ports of the SRS resource of the first ID, and the first parameter and the resource ID of the multiple transmitted SRS resources are the same; the first parameter includes one or more of the transmission power, the transmission configuration indicator (TCI) state and the spatial relation information (SpatialRelationInfo).

[0105] For example, assume that SRS1 in slot 2 is the first SRS resource, and ports 1, 3, 5 and 7 of the first SRS resource are transmitted through one symbol (for ease of description, referred to as the first symbol herein), and ports 2, 4, 6 and 8 of the first SRS resource are transmitted through another symbol (for ease of description, referred to as the second symbol herein). When the second symbol (i.e., the symbol of the data stream of ports 2, 4, 6 and 8 of the first SRS resource) conflicts with other uplink signals that need to be transmitted by the terminal, the terminal discards the SRS resource on the second symbol, i.e., discards the data stream of the first SRS resource on ports 2, 4, 6 and 8, and only transmits the SRS resource of the first symbol, i.e., only transmits the data stream of the first SRS resource on ports 1, 3, 5 and 7. Figure 5For example, suppose the first SRS resource is SRS1 in time slot 2, and the second symbols corresponding to ports 2, 4, 6, and 8 are discarded due to collisions, while the first symbols corresponding to ports 1, 3, 5, and 7 are transmitted normally. The terminal receives a DCI in time slot 3, where the SRI indicates an SRS resource ID of 1 (SRI = 1). The most recently transmitted SRS resource with ID 1 before the terminal receives this DCI is SRS1 in time slot 2, and some of its symbols are discarded. At this point, it is determined whether there are any previously transmitted SRS resources before this DCI. These SRS resources all have the same resource ID as indicated by the SRI in this DCI, and their first parameters are identical. Furthermore, the symbols transmitted by these SRS resources can cover all ports of the SRS resource with the first ID. If so, the terminal determines the transmission codebook for the PUSCH scheduled by the DCI based on the first SRS resource.

[0106] Figure 5 In this scenario, a DCI updating the SRS1 transmit power or TCI status / spatial relationship information is received between time slot 0 and time slot 1. No DCI updating the SRS1 transmit power or TCI status / spatial relationship information is received between time slots 1 and 3. Therefore, the first parameter of the SRS1 transmitted on time slots 1 to 2 is the same. All symbols of the SRS1 transmitted on time slot 1 are transmitted normally. Therefore, the SRS1 (first SRS resource) in time slot 2 and the SRS1 (at least one SRS resource transmitted before the first SRS resource) in time slot 1 satisfy the requirements of the multiple transmitted SRS resources, i.e., the resource ID is 1, the first parameter is the same, and the transmitted symbols can cover all ports of SRS1. At this time, the terminal determines the transmission codebook of the PUSCH transmitted on time slot 3+K based on the SRS1 (first SRS resource) in time slot 2.

[0107] by Figure 6 For example, Figure 6 The scene shown is Figure 5 Similar, the difference is, Figure 6 In this process, the second symbol of SRS1 sent on time slot 1 (corresponding to the data streams on ports 2, 4, 6, and 8) is sent normally, while the first symbol (corresponding to the data streams on ports 1, 3, 5, and 7) is discarded. At this time, the first symbol of SRS1 (the first SRS resource) sent normally on time slot 2 (corresponding to ports 1, 3, 5, and 7), along with the second symbol of SRS1 (at least one SRS resource sent before the first SRS resource) sent normally on time slot 1 (corresponding to ports 2, 4, 6, and 8), can also cover all ports of SRS1. Therefore, the terminal can determine the transmission codebook of PUSCH sent on time slot 3+K based on SRS1 (the first SRS resource) of time slot 2.

[0108] Figures 5-6 In the scenario shown, the multiple transmitted SRS resources exist. If the multiple transmitted SRS resources do not exist, the terminal can also determine the transmission codebook of the PUSCH according to a second SRS resource. Here, the second SRS resource is the first ID SRS resource transmitted before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all X ports or Y symbols of the second SRS resource are transmitted. Figure 7 For example, Figure 7 The scenario shown is similar to Figure 5 The difference is that Figure 7 In the scenario, the second symbol (corresponding to the data streams on ports 2, 4, 6, and 8) of SRS1 transmitted on slot 1 is discarded, and the first symbol (corresponding to the data streams on ports 1, 3, 5, and 7) is normally transmitted. At this time, the first symbol (corresponding to ports 1, 3, 5, and 7) of SRS1 (first SRS resource) normally transmitted on slot 2 is the same as the second symbol (also corresponding to ports 1, 3, 5, and 7) of SRS1 normally transmitted on slot 1, and lacks ports 2, 4, 6, and 8 and cannot include all ports of SRS1, so the multiple transmitted SRS resources do not exist. Before slot 1, the terminal receives DCI that updates the transmission power or TCI state / space relationship information of SRS1. Assuming that the transmission power of SRS1 on slot 0 is different from that of SRS1 on slot 1, both symbols of SRS1 on slot 0 are normally transmitted. At this time, the terminal can determine the transmission codebook of the PUSCH transmitted on slot 3+K according to SRS1 on slot 0 (i.e., the second SRS resource in the above).

[0109] In another embodiment of the present application, after the above step 41, the terminal can also receive a first DCI, the first DCI is used to schedule PUSCH transmission, and the SRS resource ID indicated by the SRI in the first DCI is the first ID. Assuming that the first SRS resource is the first ID SRS resource most recently transmitted by the terminal before the first DCI, if all symbols of the first SRS resource are normally transmitted, the terminal can determine the transmission codebook of the PUSCH according to the first SRS resource. That is, if all symbols of the first SRS resource are normally transmitted, the terminal determines the transmission codebook of the PUSCH according to the first SRS resource. For example, Figure 8 In the scenario shown, Figure 8 The scenario is similar to Figure 5 The difference is that Figure 8 In the scenario, both symbols of SRS1 transmitted on slot 2 are normally transmitted. At this time, the terminal can determine the transmission codebook of the PUSCH transmitted on slot 3+K according to SRS1 (first SRS resource) on slot 2.

[0110] If part of the symbols of the first SRS resource are discarded, and the remaining symbols are transmitted, at this time, it can be determined whether the multiple transmitted SRS resources exist in a similar manner as described above. If yes, the transmission codebook of the PUSCH is determined according to the first SRS resource; if no, the transmission codebook of the PUSCH can be determined according to the second SRS resource. Here, the multiple transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource, the symbols transmitted by the multiple transmitted SRS resources can cover all ports of the first ID SRS resource, and the first parameters and resource IDs of the multiple transmitted SRS resources are the same; the first parameters include one or more of transmission power, TCI state and spatial relationship information. The second SRS resource is the first ID SRS transmitted before the first SRS resource, the first parameters of the second SRS resource are different from those of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0111] In the above embodiment, the terminal needs to determine whether the multiple transmitted SRS resources exist, and the specific determination method is described as follows:

[0112] The terminal finds the first ID SRS resource transmitted before the first SRS resource in reverse order of time. Here, finding in reverse order of time means finding the first ID SRS resource transmitted by the terminal before the first SRS resource from the current time.

[0113] When the first parameters of the currently found SRS resource are the same as those of the first SRS resource, if the transmitted symbols of all found SRS resources and the transmitted symbols of the first SRS resource can cover all ports of the first ID SRS resource, it is determined that the multiple transmitted SRS resources exist; if they cannot cover all ports of the first ID SRS resource, the first ID SRS resource is continuously found.

[0114] When the first parameters of the currently found SRS resource are different from those of the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0115] For example, Figure 9For example, suppose the terminal receives the DCI update for SRS1 power before time slot 0, and the first parameters of SRS1 in time slots 0 to 2 are the same. Assume the first SRS resource is SRS1 transmitted in time slot 2, and the second symbol of this SRS1 is discarded. The terminal searches backwards from time slot 2 for transmitted SRS1. First, it finds SRS1 in time slot 1. Since the second symbol of this SRS1 is also discarded, the transmitted symbols of SRS1 in time slots 1 and 2 cannot include all the symbols of SRS1. Therefore, the search continues forward, and then it finds SRS1 in time slot 0. Since the second symbol of this SRS1 is transmitted normally, the transmitted symbols of SRS1 in time slots 0 and 2 can include all the symbols of SRS1. At this point, it is determined that multiple transmitted SRS resources exist, and these multiple transmitted SRS resources specifically include SRS1 in time slot 0 and SRS1 in time slot 2.

[0116] by Figure 10 For example, suppose the terminal receives a DCI update for SRS1 power between time slot 0 and time slot 1. Assume the first parameters of SRS1 in time slots 1 through 2 are the same, while the first parameters of SRS1 in time slot 0 are different from those in time slot 1 or time slot 2. Both symbols of SRS1 in time slot 0 are transmitted normally. The first symbols of SRS1 in time slots 1 and 2 (corresponding to ports 1, 3, 5, and 7) are transmitted normally, while the second symbols (corresponding to ports 2, 4, 6, and 8) are discarded. Then, following the above method, it is determined whether the multiple transmitted SRS resources exist. When SRS1 in time slot 1 is found, because the transmitted symbols of SRS1 in time slots 1 and 2 cannot include all symbols of SRS1, the search continues forward. Then, SRS1 in time slot 0 is found. At this point, because the first parameters of SRS1 in time slot 0 are found to be different from those in time slot 1 or time slot 2, the search process ends, and it is determined that the multiple transmitted SRS resources do not exist.

[0117] In another embodiment of the present application, after step 41, the terminal can further receive a first DCI, the first DCI is used to schedule PUSCH transmission, and the SRS resource ID indicated by the SRI in the first DCI is a first ID. Assuming that the first SRS resource is the SRS resource of the first ID that the terminal has recently transmitted before the first DCI, if part of the symbols of the first SRS resource are discarded, the terminal can determine the transmission codebook of the PUSCH according to a third SRS resource; if all the symbols of the first SRS resource are transmitted, the terminal can determine the transmission codebook of the PUSCH according to the first SRS resource. Here, the third SRS resource is the SRS of the first ID that is transmitted before the first SRS resource, and all the symbols of the third SRS resource are transmitted. Here, the first parameter of the third SRS resource can be the same as or different from the first parameter of the first SRS resource. That is, when part of the symbols of the first SRS resource are discarded, the terminal directly finds the SRS resource of the same ID whose all symbols have been transmitted before the first SRS resource, and determines the transmission codebook of the PUSCH according to the SRS resource. For example, Figure 5 , the third SRS resource in Figure 5 is SRS1 on slot 1; for example, Figure 7 , the third SRS resource in Figure 7 is SRS1 on slot 0.

[0118] From the above, it can be seen that the embodiments of the present application clearly define the transmission and reception mode of the SRS resource and the determination mode of the transmission codebook of the PUSCH when part of the symbols of the SRS resource conflict, which can ensure consistency in understanding between the base station and the terminal, and improve the uplink transmission performance.

[0119] In the embodiments of the present application, the terminal receives the first indication information (such as DCI) sent by the network device for updating the first parameter (such as the transmission power or TCI state / space relation information of the SRS resource), and determines the effective time of the first parameter updated by the first indication information based on the first indication information.

[0120] If the effective time of the first parameter updated by the DCI is located between multiple symbols of a certain SRS resource, the first parameter of the SRS resource is determined according to the time domain position of the first symbol corresponding to the SRS resource, wherein the first parameter includes one or more of the transmission power, the TCI state and the space relation information. Since the time domain position of the first symbol is before the above effective time, the first parameter before the first indication information is used as the first parameter of the SRS resource. After the SRS resource, the first parameter updated by the first indication information can be used.

[0121] For example, Figure 11For example, assuming that the validity time of the first parameter updated by the DCI is located between the first symbol and the second symbol of the SRS resource, the SRS still uses the first parameter before the update, that is, the first parameter updated by the DCI takes effect after the SRS.

[0122] Please refer to Figure 12 The uplink reference signal receiving method provided by the embodiment of the application, when applied to a network device, comprises the following steps:

[0123] Step 121, receiving a first SRS resource sent by a terminal; wherein the first SRS resource comprises X ports, and the first SRS resource is sent through Y symbols, wherein X and Y are integers greater than 1, and X≤Y.

[0124] Through the above steps, the embodiment of the application realizes the sending of the SRS resource of multiple ports.

[0125] In the above step 121, when part of the symbols for transmitting the first SRS resource conflict with other uplink signals, the network device cancels receiving the SRS resource on the part of the symbols, and receives the SRS resource of the remaining symbols, wherein the other uplink signals are uplink signals other than SRS sent by the terminal.

[0126] As an implementation manner, the above method further comprises the following steps:

[0127] a) The network device sends a first DCI to the terminal, wherein the first DCI is used for scheduling PUSCH transmission, and the SRI in the first DCI indicates a first ID;

[0128] b) In the case that the first SRS resource is an SRS resource of the first ID sent by the terminal most recently before the first DCI, if part of the symbols of the first SRS resource are discarded, when there are multiple sent SRS resources, determining a transmission codebook of the PUSCH sent by the terminal according to the first SRS resource; or when there are no multiple sent SRS resources, determining a transmission codebook of the PUSCH according to a second SRS resource;

[0129] wherein the multiple sent SRS resources comprise the first SRS resource and at least one SRS resource sent by the terminal before the first SRS resource, the multiple sent SRS resources cover all ports of the SRS resource of the first ID, and the first parameter and the resource ID of the multiple sent SRS resources are the same; the first parameter comprises one or more of transmission power, TCI state and spatial relationship information;

[0130] The second SRS resource is a first ID SRS resource transmitted before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0131] In the implementation, when the plurality of transmitted SRS resources exist, channel estimation is performed based on the plurality of transmitted SRS resources; and when the plurality of transmitted SRS resources do not exist, channel estimation is performed based on the second SRS resource.

[0132] When channel estimation is performed based on the plurality of transmitted SRS resources, there are multiple processing modes.

[0133] One processing mode is to extract a symbol combination of the SRS resource from the received symbols of the plurality of transmitted SRS resources, the symbol combination includes all ports of the SRS resource and each port is not repeated; and channel estimation is performed based on the symbol combination. Figure 5 For example, the first symbol (corresponding to ports 1, 3, 5, 7) of SRS1 in slot 2 and the second symbol (corresponding to ports 2, 4, 6, 8) of SRS1 in slot 1 can be combined as a symbol combination, thereby obtaining a symbol combination including all ports of SRS1. Channel estimation is then performed based on the symbol combination.

[0134] Another processing mode is to combine the received symbols of the plurality of transmitted SRS resources, wherein the symbols corresponding to the same SRS resource port are combined, thereby obtaining a symbol combination including all ports of the SRS resource; and channel estimation is then performed based on the symbol combination. Still taking Figure 5 For example, the first symbol (corresponding to ports 1, 3, 5, 7) of SRS1 in slot 1 and the first symbol (corresponding to ports 1, 3, 5, 7) of SRS1 in slot 2 can be combined, and then combined with the second symbol (corresponding to ports 2, 4, 6, 8) of SRS1 in slot 1, thereby obtaining a symbol combination including all ports of SRS1. Channel estimation is then performed based on the symbol combination.

[0135] As another implementation, the above method further includes the following steps:

[0136] a) transmitting a first DCI to the terminal, the first DCI is used to schedule PUSCH transmission, and the SRI in the first DCI indicates a first ID;

[0137] b) in the case that the first SRS resource is a first ID SRS resource transmitted by the terminal most recently before the first DCI:

[0138] When all symbols of the first SRS resource are transmitted, a transmission codebook of the terminal for transmitting the PUSCH is determined according to the first SRS resource;

[0139] When part of the symbols of the first SRS resource are discarded, if there are multiple transmitted SRS resources, a transmission codebook of the terminal for transmitting the PUSCH is determined according to the first SRS resource; if there are no multiple transmitted SRS resources, a transmission codebook of the terminal for transmitting the PUSCH is determined according to the second SRS resource.

[0140] Here, the multiple transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource, the symbols of the multiple transmitted SRS resources can cover all ports of the SRS resource of the first ID, and the first parameters and resource IDs of the multiple transmitted SRS resources are the same; the first parameters include one or more of transmission power, TCI state and spatial relationship information. The second SRS resource is an SRS of the first ID transmitted before the first SRS resource, the first parameters of the second SRS resource are different from those of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0141] In this implementation, when X ports or Y symbols of the first SRS resource are all transmitted, channel estimation is performed based on the first SRS resource. When part of the symbols of the first SRS resource are discarded, if there are multiple transmitted SRS resources, channel estimation is performed based on the multiple transmitted SRS resources; if there are no multiple transmitted SRS resources, channel estimation is performed based on the second SRS resource.

[0142] In addition, the specific processing mode of performing channel estimation based on the multiple transmitted SRS resources can refer to the description above, which will not be repeated here.

[0143] In the embodiments of the present application, the network device can determine whether there are multiple transmitted SRS resources according to the following steps:

[0144] 1) Find the SRS resource of the first ID transmitted before the first SRS resource in reverse order of time;

[0145] 2) if all the found SRS resources can cover all the ports of the first ID SRS resource with the transmitted symbols of the first SRS resource when the first parameter of the currently found SRS resource is the same as the first SRS resource, it is determined that the multiple transmitted SRS resources exist; if the first ID SRS resource cannot be covered, the first ID SRS resource is continued to be found;

[0146] 3) if the first parameter of the currently found SRS resource is different from the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0147] As another implementation manner, the above method further includes the following steps:

[0148] a) sending a first DCI to the terminal, the first DCI being used for scheduling a PUSCH transmission, and an SRI in the first DCI indicating a first ID;

[0149] b) in the case that the first SRS resource is the SRS resource of the first ID that the terminal has recently transmitted before the first DCI:

[0150] when part of the symbols of the first SRS resource are discarded, determining a transmission codebook of the terminal for transmitting the PUSCH according to a third SRS resource, wherein the third SRS resource is the SRS of the first ID that is transmitted before the first SRS resource, and all the symbols of the third SRS resource are transmitted;

[0151] when all the symbols of the first SRS resource are transmitted, determining a transmission codebook of the terminal for transmitting the PUSCH according to the first SRS resource.

[0152] In the embodiment of the application, when the first parameter effective time is located between the multiple symbols of the first SRS resource, the network device determines the first parameter of the first SRS resource according to the time domain position of the first symbol corresponding to the first SRS resource, wherein the first parameter includes one or more of transmission power, TCI state and spatial relationship information.

[0153] Optionally, the network device can send first indication information for updating the first parameter to the terminal, and determine the effective time of the first parameter updated by the first indication information based on the first indication information.

[0154] In this implementation manner, when all the symbols of the first SRS resource are transmitted, channel estimation is performed based on the first SRS resource. When part of the symbols of the first SRS resource are discarded, channel estimation is performed based on the third SRS resource.

[0155] The above introduces various methods of embodiments of the present application. The following will further provide a device for implementing the above method.

[0156] Please refer to Figure 13 The present application also provides a terminal, comprising:

[0157] The first sending module 1301 is configured to send a first SRS resource; wherein the first SRS resource comprises X ports, and the first SRS resource is sent through Y symbols, wherein X and Y are integers greater than 1, and X≤Y.

[0158] Through the above modules, the present application realizes the sending of the SRS resource.

[0159] Optionally, the first sending module is further configured to, when Z symbols for transmitting the first SRS resource conflict with other uplink signals, discard the SRS resource on the Z symbols, and send the SRS resource on other symbols except the Z symbols, wherein Z is an integer greater than or equal to 1 and less than or equal to Y.

[0160] Optionally, the terminal further comprises:

[0161] The first receiving module is configured to receive a first DCI, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID;

[0162] The first determining module is configured to, in the case that the first SRS resource is an SRS resource of the first ID that the terminal has recently sent before the first DCI, if part of the symbols of the first SRS resource are discarded, determine a transmission codebook of the PUSCH according to the first SRS resource when there are multiple sent SRS resources; or determine the transmission codebook of the PUSCH according to a second SRS resource when there are no multiple sent SRS resources;

[0163] The multiple sent SRS resources comprise the first SRS resource and at least one SRS resource sent by the terminal before the first SRS resource, the multiple sent SRS resources cover all ports of the SRS resource of the first ID, and the first parameter and the resource ID of the multiple sent SRS resources are the same; the first parameter comprises one or more of transmission power, TCI state and spatial relationship information;

[0164] The second SRS resource is an SRS of the first ID sent before the first SRS resource, the first parameter of the second SRS resource is different from that of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0165] Optionally, the terminal further comprises:

[0166] The second determining module is configured to determine whether the multiple transmitted SRS resources exist according to the following steps:

[0167] finding the SRS resource of the first ID transmitted before the first SRS resource in a time reverse order;

[0168] when the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all the found SRS resources and the transmitted symbols of the first SRS resource can cover all the ports of the SRS resource of the first ID, it is determined that the multiple transmitted SRS resources exist; or if all the ports of the SRS resource of the first ID cannot be covered, the SRS resource of the first ID is continuously found;

[0169] when the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0170] Optionally, the terminal further comprises:

[0171] The second receiving module is configured to receive a first DCI, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID;

[0172] The third determining module is configured to, in a case where the first SRS resource is an SRS resource of the first ID most recently transmitted by the terminal before the first DCI, determine a transmission codebook of the PUSCH according to the first SRS resource when all the symbols of the first SRS resource are transmitted.

[0173] Optionally, the terminal further comprises:

[0174] The third receiving module is configured to receive a first DCI, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID;

[0175] The fourth determining module is configured to, in a case where the first SRS resource is an SRS resource of the first ID most recently transmitted by the terminal before the first DCI, determine a transmission codebook of the PUSCH according to a third SRS resource when part of the symbols of the first SRS resource are discarded; or determine the transmission codebook of the PUSCH according to the first SRS resource when all the symbols of the first SRS resource are transmitted.

[0176] The third SRS resource is a first ID SRS transmitted before the first SRS resource, and all symbols of the third SRS resource are transmitted.

[0177] Optionally, the terminal further includes:

[0178] The fifth determining module is configured to determine the first parameter of the first SRS resource according to a time domain position of a first symbol corresponding to the first SRS resource when the first parameter effective time is located between the symbols of the first SRS resource, wherein the first parameter includes one or more of a transmission power, a TCI state, and spatial relationship information.

[0179] Optionally, the terminal further includes:

[0180] The fourth receiving module is configured to receive first indication information for updating the first parameter, and determine an effective time of the first parameter updated by the first indication information based on the first indication information.

[0181] It should be noted that the device in this embodiment is a device corresponding to the method applied to the terminal side described above, and the implementation manners in the above embodiments are applicable to the embodiments of the device and can achieve the same technical effects. The device provided in the embodiments of the present application can implement all the method steps achieved by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0182] Please refer to Figure 14 The present application embodiment further provides a terminal 1400, which includes a transceiver 1401 and a processor 1402.

[0183] The transceiver 1401 is configured to transmit a first SRS resource; wherein the first SRS resource includes X ports, the first SRS resource is transmitted through Y symbols, and X and Y are both integers greater than 1, and X≤Y.

[0184] Optionally, the transceiver is further configured to discard the SRS resource on the Z symbols when the Z symbols for transmitting the first SRS resource conflict with other uplink signals, transmit the SRS resource on the symbols other than the Z symbols, Z is an integer greater than or equal to 1 and less than or equal to Y.

[0185] Optionally, the transceiver is further configured to receive a first DCI, the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0186] The processor is configured to: in a case where the first SRS resource is a first ID SRS resource that is most recently transmitted by the terminal before the first DCI, if part of symbols of the first SRS resource are discarded, determining a transmission codebook of the PUSCH according to the first SRS resource when there are multiple transmitted SRS resources, or determining the transmission codebook of the PUSCH according to a second SRS resource when there are no multiple transmitted SRS resources.

[0187] The multiple transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource, the multiple transmitted SRS resources cover all ports of the first ID SRS resource, and the first parameters and resource IDs of the multiple transmitted SRS resources are the same.

[0188] The second SRS resource is a first ID SRS transmitted before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0189] Optionally, the processor is further configured to determine whether the multiple transmitted SRS resources exist according to the following steps:

[0190] The first ID SRS resource transmitted before the first SRS resource is found in a time reverse order;

[0191] When the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all found SRS resources and the transmitted symbols of the first SRS resource can cover all ports of the first ID SRS resource, it is determined that the multiple transmitted SRS resources exist; or if all found SRS resources and the transmitted symbols of the first SRS resource cannot cover all ports of the first ID SRS resource, the first ID SRS resource is continuously found.

[0192] When the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0193] Optionally, the transceiver is further configured to receive a first DCI, the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0194] The processor is further configured to determine, according to the first SRS resource, a transmission codebook of the PUSCH when all symbols of the first SRS resource are transmitted, in a case where the first SRS resource is an SRS resource of a first ID that is most recently transmitted by the terminal before the first DCI.

[0195] Optionally, the transceiver is further configured to receive a first DCI, the first DCI being used for scheduling a PUSCH transmission, and an SRI in the first DCI indicating a first ID.

[0196] The processor is further configured to determine, according to a third SRS resource, a transmission codebook of the PUSCH when part of symbols of the first SRS resource are discarded, or to determine, according to the first SRS resource, the transmission codebook of the PUSCH when all symbols of the first SRS resource are transmitted, in a case where the first SRS resource is an SRS resource of a first ID that is most recently transmitted by the terminal before the first DCI.

[0197] The third SRS resource is an SRS of the first ID that is transmitted before the first SRS resource, and all symbols of the third SRS resource are transmitted.

[0198] Optionally, the terminal further includes:

[0199] The processor is further configured to determine a first parameter of the first SRS resource according to a time domain position of a first symbol corresponding to the first SRS resource when a first parameter validity time of the first parameter is located between the symbols of the first SRS resource, wherein the first parameter includes one or more of a transmission power, a TCI state, and spatial relation information.

[0200] Optionally, the transceiver is further configured to receive first indication information used for updating the first parameter, and determine a validity time of the first parameter updated by the first indication information based on the first indication information.

[0201] It should be noted that the device in this embodiment is a device corresponding to the method applied to the terminal side described above, and the implementation manners in the above embodiments are applicable to the embodiments of the device and can achieve the same technical effects. The device provided in the embodiments of the present application can implement all the method steps achieved by the method embodiments and achieve the same technical effects. Therefore, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0202] For reference Figure 15 The present application also provides a network device, which includes:

[0203] The first receiving module 1501 is configured to receive a first SRS resource sent by a terminal; wherein the first SRS resource comprises X ports, the first SRS resource is sent through Y symbols, and X and Y are both integers greater than 1, and X≤Y.

[0204] Optionally, the first receiving module is further configured to, when Z symbols for transmitting the first SRS resource conflict with other uplink signals, cancel receiving SRS resources on the Z symbols, and receive SRS resources on symbols other than the Z symbols, wherein the other uplink signals are uplink signals other than SRS sent by the terminal.

[0205] Optionally, the network device further comprises:

[0206] The first sending module is configured to send a first DCI to the terminal, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0207] The first determining module is configured to, in a case where the first SRS resource is a first ID SRS resource sent by the terminal most recently before the first DCI, if part of symbols of the first SRS resource are discarded, determine a transmission codebook of the PUSCH sent by the terminal according to the first SRS resource in a case where a plurality of sent SRS resources exist, or determine the transmission codebook of the PUSCH according to a second SRS resource in a case where the plurality of sent SRS resources do not exist.

[0208] The plurality of sent SRS resources comprise the first SRS resource and at least one SRS resource sent by the terminal before the first SRS resource, the plurality of sent SRS resources cover all ports of the first ID SRS resource, and the plurality of sent SRS resources are of the same first parameter and resource ID; the first parameter comprises one or more of transmission power, TCI state, and spatial relationship information.

[0209] The second SRS resource is a first ID SRS sent before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0210] Optionally, the network device further comprises:

[0211] The second determining module is configured to determine whether the plurality of sent SRS resources exist according to the following steps:

[0212] Find, in a time reverse order, a first ID SRS resource sent by the terminal before the first SRS resource;

[0213] In a case that the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all the found SRS resources and the transmitted symbols of the first SRS resource can cover all the ports of the SRS resource of the first ID, it is determined that the multiple transmitted SRS resources exist; or if the all the ports of the SRS resource of the first ID cannot be covered, the SRS resource of the first ID is continued to be found.

[0214] In a case that the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the finding is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0215] Optionally, the network device further comprises:

[0216] The second sending module is configured to send a first DCI to the terminal, the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0217] The third determining module is configured to, in a case that the first SRS resource is an SRS resource of the first ID that is most recently sent by the terminal before the first DCI, determine, according to the first SRS resource, a transmission codebook of the PUSCH sent by the terminal when all the symbols of the first SRS resource are transmitted.

[0218] Optionally, the network device further comprises:

[0219] The third sending module is configured to send a first DCI to the terminal, the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0220] The fourth determining module is configured to, in a case that the first SRS resource is an SRS resource of the first ID that is most recently sent by the terminal before the first DCI, determine, according to a third SRS resource, a transmission codebook of the PUSCH sent by the terminal when part of the symbols of the first SRS resource are discarded; or determine, according to the first SRS resource, the transmission codebook of the PUSCH sent by the terminal when all the symbols of the first SRS resource are transmitted.

[0221] The third SRS resource is an SRS of the first ID that is sent before the first SRS resource, and all the symbols of the third SRS resource are transmitted.

[0222] Optionally, the network device further comprises:

[0223] The fifth determining module is configured to determine the first parameter of the first SRS resource according to a time domain position of a first symbol corresponding to the first SRS resource when the first parameter taking effect time is located between symbols of the first SRS resource, wherein the first parameter comprises one or more of a transmission power, a TCI state and spatial relation information.

[0224] Optionally, the network device further comprises:

[0225] The third sending module is configured to send first indication information for updating the first parameter to the terminal, and determine a taking effect time of the first parameter updated by the first indication information based on the first indication information.

[0226] Optionally, the network device further comprises:

[0227] The first estimating module is configured to perform channel estimation based on the plurality of transmitted SRS resources when the plurality of transmitted SRS resources exist.

[0228] Optionally, the first estimating module is further configured to perform channel estimation based on the plurality of transmitted SRS resources, including any one of the following:

[0229] extracting a symbol combination of the SRS resources from the received plurality of transmitted SRS resources, the symbol combination covering all ports of the SRS resources and each port being not repeated; and performing channel estimation based on the symbol combination;

[0230] combining symbols of the received plurality of transmitted SRS resources, wherein symbols corresponding to the same SRS resource port are merged to obtain a symbol combination including all ports of the SRS resources; and performing channel estimation based on the symbol combination.

[0231] It should be noted that the device in this embodiment is a device corresponding to the above-mentioned method applied to the network side, and the implementation modes in the above-mentioned embodiments are all applicable to the embodiments of the device and can also achieve the same technical effects. The above-mentioned device provided by the embodiments of the present application can implement all method steps realized by the above-mentioned method embodiments and achieve the same technical effects. Here, the same parts and beneficial effects in the method embodiments will not be described in detail.

[0232] For reference Figure 16 The embodiments of the present application further provide a network device 1600, comprising a transceiver 1601 and a processor 1602.

[0233] The transceiver 1601 is configured to receive a first SRS resource sent by a terminal; wherein the first SRS resource includes X ports, the first SRS resource is sent through Y symbols, and X and Y are both integers greater than 1, and X≤Y.

[0234] Optionally, the transceiver is further configured to, when Z symbols for transmitting the first SRS resource conflict with other uplink signals, cancel receiving the SRS resource on the Z symbols, and receive the SRS resource on symbols other than the Z symbols, wherein the other uplink signals are uplink signals other than SRS sent by the terminal.

[0235] Optionally, the transceiver is further configured to send a first DCI to the terminal, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates a first ID.

[0236] The processor is configured to, in a case where the first SRS resource is a first ID SRS resource sent by the terminal most recently before the first DCI, if part of symbols of the first SRS resource are discarded, determine a transmission codebook of the PUSCH sent by the terminal according to the first SRS resource in a case where there are multiple sent SRS resources, or determine the transmission codebook of the PUSCH according to a second SRS resource in a case where there are no multiple sent SRS resources.

[0237] The multiple sent SRS resources include the first SRS resource and at least one SRS resource sent by the terminal before the first SRS resource, the multiple sent SRS resources cover all ports of the first ID SRS resource, and the first parameter and the resource ID of the multiple sent SRS resources are the same; the first parameter includes one or more of transmission power, TCI state, and spatial relationship information.

[0238] The second SRS resource is a first ID SRS sent before the first SRS resource, the second SRS resource is different from the first parameter of the first SRS resource, and all symbols of the second SRS resource are transmitted.

[0239] Optionally, the processor is further configured to determine whether the multiple sent SRS resources exist according to the following steps:

[0240] find the first ID SRS resource sent by the terminal before the first SRS resource in a time reverse order;

[0241] In a case that the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if all the found SRS resources and the transmitted symbols of the first SRS resource can cover all the ports of the SRS resource of the first ID, it is determined that the multiple transmitted SRS resources exist; or if all the ports of the SRS resource of the first ID cannot be covered, the SRS resource of the first ID is continuously searched.

[0242] In a case that the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the searching is ended and it is determined that the multiple transmitted SRS resources do not exist.

[0243] Optionally, the transceiver is further configured to send, to the terminal, a first DCI, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates the first ID.

[0244] The processor is further configured to, in a case that the first SRS resource is an SRS resource of the first ID that is most recently transmitted by the terminal before the first DCI, determine, according to the first SRS resource, a transmission codebook of the terminal for transmitting the PUSCH when all the symbols of the first SRS resource are transmitted.

[0245] Optionally, the transceiver is further configured to send, to the terminal, a first DCI, wherein the first DCI is used for scheduling PUSCH transmission, and an SRI in the first DCI indicates the first ID.

[0246] The processor is further configured to, in a case that the first SRS resource is an SRS resource of the first ID that is most recently transmitted by the terminal before the first DCI, determine, according to a third SRS resource, a transmission codebook of the terminal for transmitting the PUSCH when part of the symbols of the first SRS resource are discarded; or determine, according to the first SRS resource, the transmission codebook of the terminal for transmitting the PUSCH when all the symbols of the first SRS resource are transmitted.

[0247] The third SRS resource is an SRS resource of the first ID that is transmitted before the first SRS resource, and all the symbols of the third SRS resource are transmitted.

[0248] Optionally, the processor is further configured to, when the first parameter effective time is located between the symbols of the first SRS resource, determine the first parameter of the first SRS resource according to a time domain position of a first symbol corresponding to the first SRS resource, wherein the first parameter comprises one or more of transmission power, TCI state and spatial relationship information.

[0249] Optionally, the transceiver is further configured to send, to the terminal, first indication information for updating the first parameter, and determine an effective time of the first parameter updated by the first indication information based on the first indication information.

[0250] Optionally, the processor is further configured to, in a case where the multiple transmitted SRS resources exist, perform channel estimation based on the multiple transmitted SRS resources.

[0251] Optionally, the processor is further configured to perform channel estimation based on the multiple transmitted SRS resources, including any one of the following:

[0252] extracting, from the received multiple transmitted SRS resources, a symbol combination of the SRS resources, the symbol combination covering all ports of the SRS resources and each port being not repeated, and performing channel estimation based on the symbol combination;

[0253] combining symbols of the received multiple transmitted SRS resources, wherein symbols corresponding to the same SRS resource port are merged, a symbol combination including all ports of the SRS resources is obtained, and channel estimation is performed based on the symbol combination.

[0254] It should be noted that the device in this embodiment is a device corresponding to the method applied to the network side described above, and the implementation manners in the above embodiments are all applicable to the embodiments of the device and can achieve the same technical effects. The device provided in the embodiments of the present application can implement all the method steps implemented by the method embodiments and achieve the same technical effects. Therefore, details and beneficial effects of the same parts in the method embodiments will not be described here again.

[0255] For details, please refer to Figure 17 The embodiments of the present application further provide a terminal 1700, which comprises a processor 1701, a memory 1702, and a computer program stored in the memory 1702 and executable on the processor 1701. The computer program is executed by the processor 1701 to implement each process of the uplink reference signal sending method embodiment performed by the terminal described above and achieve the same technical effects. To avoid repetition, details will not be described here again.

[0256] For details, please refer to Figure 18 The embodiments of the present application further provide a network device 1800, which comprises a processor 1801, a memory 1802, and a computer program stored in the memory 1802 and executable on the processor 1801. The computer program is executed by the processor 1801 to implement each process of the uplink reference signal receiving method embodiment performed by the network device described above and achieve the same technical effects. To avoid repetition, details will not be described here again.

[0257] The embodiment of the present application further provides a computer readable storage medium, which stores a computer program. The computer program is executed by a processor to realize each process of the uplink reference signal sending method and receiving method, and achieves the same technical effects. To avoid repetition, details are not described herein. The computer readable storage medium is, for example, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0258] It should be noted that, in this document, the term "comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that processes, methods, articles or apparatuses including a series of elements not only include those elements, but also include other elements not explicitly listed, or further include elements inherent to such processes, methods, articles or apparatuses. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus including the element.

[0259] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of software and necessary general hardware platforms, of course, they can also be realized by hardware, but in many cases the former is a better embodiment. Based on this understanding, the technical solutions of the present application can be embodied in the form of a software product, which is stored in a storage medium (such as a ROM / RAM, a magnetic disk, an optical disk), and includes a number of instructions for making a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the embodiments of the present application.

[0260] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, which are only illustrative rather than limiting. Those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims.

Claims

1. A method for transmitting an uplink reference signal, characterized in that, include: The terminal sends a first SRS resource; wherein the first SRS resource includes X ports, the first SRS resource is sent through Y symbols, and X and Y are both integers greater than 1, and X≤Y; The method further includes: Receive the first DCI, which is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID; If the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, and some symbols of the first SRS resource are discarded, then if there are multiple sent SRS resources, the transmission codebook of the PUSCH is determined according to the first SRS resource; or, if there are no multiple sent SRS resources, the transmission codebook of the PUSCH is determined according to the second SRS resource. The plurality of transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource. The plurality of transmitted SRS resources cover all ports of the SRS resource with the first ID. Furthermore, the first parameter and resource ID of the plurality of transmitted SRS resources are the same. The first parameter includes one or more of the following: transmission power, TCI status, and spatial relationship information. The second SRS resource is an SRS of the first ID sent before the first SRS resource. The first parameter of the second SRS resource is different from that of the first SRS resource, and all symbols of the second SRS resource are transmitted.

2. The method as described in claim 1, characterized in that, The sending of the first SRS resource includes: When the Z symbols transmitting the first SRS resource conflict with other uplink signals, the SRS resources on the Z symbols are discarded, and the SRS resources on the other symbols are transmitted instead, where Z is an integer greater than or equal to 1 and less than or equal to Y.

3. The method as described in claim 1, characterized in that, Also includes: To determine whether the plurality of sent SRS resources exist, follow these steps: Search for the SRS resource with the first ID that was sent before the first SRS resource in reverse chronological order; When the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if the transmitted symbols of all found SRS resources and the first SRS resource can cover all ports of the SRS resource of the first ID, then it is determined that there are the multiple sent SRS resources. Alternatively, if all ports of the SRS resource for the first ID cannot be covered, then continue searching for the SRS resource for the first ID. If the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the search ends and it is determined that the plurality of sent SRS resources do not exist.

4. The method as described in claim 1, characterized in that, Also includes: Receive the first DCI, which is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID; When the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, when all symbols of the first SRS resource are transmitted, the transmission codebook of the PUSCH is determined according to the first SRS resource.

5. The method as described in claim 1, characterized in that, Also includes: Receive the first DCI, which is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID; If the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, when some symbols of the first SRS resource are discarded, the transmission codebook of the PUSCH is determined according to the third SRS resource; or, when all symbols of the first SRS resource are transmitted, the transmission codebook of the PUSCH is determined according to the first SRS resource. The third SRS resource is the SRS of the first ID sent before the first SRS resource, and all symbols of the third SRS resource are transmitted.

6. The method as described in claim 1, characterized in that, When the effective time of the first parameter is located between the symbols of the first SRS resource, the first parameter of the first SRS resource is determined according to the time domain position of the first symbol corresponding to the first SRS resource. The first parameter includes one or more of the following: transmission power, TCI status, and spatial relationship information.

7. The method as described in claim 6, characterized in that, Also includes: Receive first indication information for updating a first parameter, and determine the effective time of the first parameter updated by the first indication information based on the first indication information.

8. A method for receiving an uplink reference signal, characterized in that, include: The receiving terminal sends a first SRS resource; wherein the first SRS resource includes X ports, the first SRS resource is sent through Y symbols, and X and Y are both integers greater than 1, and X≤Y; The method further includes: Send a first DCI to the terminal. The first DCI is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID. If the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, and some symbols of the first SRS resource are discarded, then if there are multiple sent SRS resources, the transmission codebook for the PUSCH to be sent by the terminal is determined according to the first SRS resource; or, if there are no multiple sent SRS resources, the transmission codebook for the PUSCH is determined according to the second SRS resource. The plurality of transmitted SRS resources include the first SRS resource and at least one SRS resource transmitted by the terminal before the first SRS resource. The plurality of transmitted SRS resources cover all ports of the SRS resource with the first ID. Furthermore, the first parameter and resource ID of the plurality of transmitted SRS resources are the same. The first parameter includes one or more of the following: transmission power, TCI status, and spatial relationship information. The second SRS resource is an SRS of the first ID sent before the first SRS resource. The first parameter of the second SRS resource is different from that of the first SRS resource, and all symbols of the second SRS resource are transmitted.

9. The method as described in claim 8, characterized in that, The first SRS resource sent by the receiving terminal includes: When the Z symbols transmitting the first SRS resource conflict with other uplink signals, the reception of the SRS resource on the Z symbols is canceled, and the SRS resource on other symbols besides the Z symbols is received. The other uplink signals are uplink signals other than SRS sent by the terminal.

10. The method as described in claim 8, characterized in that, Also includes: To determine whether the plurality of sent SRS resources exist, follow these steps: Search for the SRS resource with the first ID sent by the terminal before the first SRS resource in reverse chronological order; When the first parameter of the currently found SRS resource is the same as the first parameter of the first SRS resource, if the transmitted symbols of all found SRS resources and the first SRS resource can cover all ports of the SRS resource of the first ID, then it is determined that there are the multiple sent SRS resources. Alternatively, if all ports of the SRS resource for the first ID cannot be covered, then continue searching for the SRS resource for the first ID. If the first parameter of the currently found SRS resource is different from the first parameter of the first SRS resource, the search ends and it is determined that the plurality of sent SRS resources do not exist.

11. The method as described in claim 8, characterized in that, Also includes: Send a first DCI to the terminal. The first DCI is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID. If the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, when all symbols of the first SRS resource are transmitted, the transmission codebook for the PUSCH to be sent by the terminal is determined according to the first SRS resource.

12. The method as described in claim 8, characterized in that, Send a first DCI to the terminal. The first DCI is used to schedule PUSCH transmission, and the SRI in the first DCI indicates the first ID. If the first SRS resource is the SRS resource of the first ID most recently sent by the terminal before the first DCI, when some symbols of the first SRS resource are discarded, the transmission codebook for the PUSCH to be sent by the terminal is determined according to the third SRS resource; or, when all symbols of the first SRS resource are transmitted, the transmission codebook for the PUSCH to be sent by the terminal is determined according to the first SRS resource. The third SRS resource is the SRS of the first ID sent before the first SRS resource, and all symbols of the third SRS resource are transmitted.

13. The method as described in claim 8, characterized in that, When the effective time of the first parameter is located between the symbols of the first SRS resource, the first parameter of the first SRS resource is determined according to the time domain position of the first symbol corresponding to the first SRS resource. The first parameter includes one or more of the following: transmission power, TCI status, and spatial relationship information.

14. The method as described in claim 13, characterized in that, Also includes: Send a first indication message to the terminal for updating a first parameter, and determine the effective time of the first parameter updated by the first indication message based on the first indication message.

15. The method as described in claim 8 or 10, characterized in that, Also includes: In the presence of the plurality of transmitted SRS resources, channel estimation is performed based on the plurality of transmitted SRS resources.

16. The method as described in claim 15, characterized in that, Channel estimation is performed based on the plurality of transmitted SRS resources, including any of the following: From the received plurality of transmitted SRS resources, a symbol combination of the SRS resources is extracted, the symbol combination covering all ports of the SRS resources and the ports are not repeated; channel estimation is performed based on the symbol combination; The symbols of the received plurality of transmitted SRS resources are combined, wherein symbols corresponding to the same SRS resource port are merged to obtain a symbol combination including all ports of the SRS resource; channel estimation is performed based on the symbol combination.

17. A terminal, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 1 to 7.

18. A network device, characterized in that, include: A processor, a memory, and a program stored in the memory and executable on the processor, wherein the program, when executed by the processor, implements the steps of the method as described in any one of claims 8 to 16.

19. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the method as described in any one of claims 1 to 16.

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