Sounding reference signal (SRS) transmission method and apparatus, and communication device

Abstract

The present application relates to the technical field of communications, and discloses a sounding reference signal (SRS) transmission method and apparatus, and a communication device. The SRS transmission method in the embodiments of the present application comprises: a terminal acquires N SRS resource sets configured by a network side device and used for uplink transmission, N being greater than or equal to 1; on the basis of reference signals associated with the N SRS resource sets for uplink transmission, the terminal determines precoding of M SRSs, M being greater than or equal to 1; and the terminal sends the M SRSs on the basis of the precoding.

Description

A method, device and communication equipment for transmitting a monitoring reference signal (SRS)

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application with application number 202311874226.X filed on December 29, 2023, entitled “A method, device and communication equipment for transmitting a monitoring reference signal SRS”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application belongs to the field of communication technology, and specifically relates to a method, apparatus and communication equipment for transmitting a monitoring reference signal (SRS). Background Art

[0004] Currently, a network-side device configures a Sounding Reference Signa (SRS) resource set for uplink transmission for a terminal, and each resource set includes at least one SRS resource.

[0005] In the codebook-based uplink transmission scheme, the terminal sends an SRS based on at least one configured SRS resource. The network-side device obtains the uplink channel by receiving the SRS and, based on this, determines the beam, precoding matrix, modulation and coding scheme (MCS), etc. for the terminal's uplink data bearer channel, the Physical Uplink Shared Channel (PUSCH), and notifies the terminal through the downlink control information (DCI) that schedules the PUSCH. In this way, after receiving the DCI scheduling the PUSCH, the terminal selects a precoding matrix for PUSCH transmission from a predefined codebook based on the transmit precoding index and transmission layer indicator field (TPMI) in the DCI. The uplink data is then precoded according to the indicated TPMI and mapped to the PUSCH resource for transmission.

[0006] In a non-codebook-based uplink transmission scheme, the terminal detects the non-zero power Channel State Information-Reference Signal (NZP CSI-RS) sent by the network-side device on the NZP CSI-RS resource configured on the network side to obtain downlink channel state information. Based on channel reciprocity, this downlink channel information is approximately equivalent to uplink channel information. The candidate precoding matrix for uplink transmission is then calculated based on the uplink channel information to precode and transmit the SRS. In this way, the network-side device can further determine the precoding matrix used for uplink data bearer channel transmission based on the measured precoded SRS and notify the terminal through the DCI scheduling PUSCH.

[0007] As can be seen, in related technologies, whether using a codebook-based or non-codebook-based uplink transmission scheme, the network-side device configures a single SRS resource set for the terminal, enabling single antenna panel transmission. To improve uplink transmission performance, uplink coherent transmission can be performed. However, the SRS transmission method described above is not suitable for uplink coherent transmission. Summary of the Invention

[0008] The embodiments of the present application provide a method, apparatus, and communication device for transmitting a monitoring reference signal (SRS), which solve the problem in the related art that SRS transmission is not suitable for uplink coherent transmission.

[0009] In a first aspect, a method for transmitting a monitoring reference signal (SRS) is provided, the method comprising:

[0010] The terminal obtains N SRS resource sets for uplink transmission configured by the network side device, where N is greater than or equal to 1;

[0011] The terminal determines, according to reference signals associated with the N SRS resource sets for uplink transmission, precoding of M SRSs, where M is greater than or equal to 1;

[0012] The terminal sends the M SRSs according to the precoding.

[0013] In a second aspect, a method for transmitting a monitoring reference signal (SRS) is provided, the method comprising:

[0014] The network side device configures N SRS resource sets for uplink transmission for the terminal, where N is greater than or equal to 1;

[0015] The network-side device receives M SRSs sent by the terminal according to precoding, where the precoding is determined according to a reference signal associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

[0016] In a third aspect, a method for transmitting a monitoring reference signal (SRS) is provided, the method comprising:

[0017] The terminal obtains parameter information of the codebook subset configured by the network side device;

[0018] The terminal determines, according to the parameter information of the codebook subset, a precoding of the SRS;

[0019] The terminal sends an SRS based on the precoding.

[0020] In a fourth aspect, a method for transmitting a monitoring reference signal (SRS) is provided, the method comprising:

[0021] The network side device sends parameter information of the codebook subset to the terminal;

[0022] The network-side device receives the SRS sent by the terminal according to precoding, wherein the precoding is determined according to parameter information of the codebook subset.

[0023] In a fifth aspect, a device for transmitting a monitoring reference signal (SRS) is provided, which is applied to a terminal. The device includes:

[0024] A first acquisition module is configured to acquire N SRS resource sets for uplink transmission configured by a network-side device, where N is greater than or equal to 1;

[0025] A first determining module is configured to determine precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1;

[0026] The first sending module is configured to send the M SRSs according to the precoding.

[0027] In a sixth aspect, a monitoring reference signal (SRS) transmission device is provided, which is applied to a network-side device, and the device includes:

[0028] A first configuration module is configured to configure N SRS resource sets for uplink transmission for the terminal, where N is greater than or equal to 1;

[0029] The first receiving module is configured to receive M SRSs sent by the terminal according to precoding, where the precoding is determined according to a reference signal associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

[0030] In a seventh aspect, a device for transmitting a monitoring reference signal (SRS) is provided, which is applied to a terminal. The device includes:

[0031] A second acquisition module is used to obtain parameter information of a codebook subset configured by a network-side device;

[0032] A second determining module is used to determine the precoding of the SRS according to the parameter information of the codebook subset;

[0033] The second sending module is configured to send the SRS based on the precoding.

[0034] In an eighth aspect, a monitoring reference signal (SRS) transmission device is provided, which is applied to a network-side device, and the device includes:

[0035] A third sending module, configured to send parameter information of the codebook subset to the terminal;

[0036] The second receiving module is configured to receive the SRS sent by the terminal according to precoding, wherein the precoding is determined according to parameter information of the codebook subset.

[0037] In a ninth aspect, a terminal is provided, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the programs or instructions are executed by the processor, the steps of the method described in the first aspect or the third aspect are implemented.

[0038] In a tenth aspect, a terminal is provided, comprising a processor and a communication interface;

[0039] The communication interface is used to: obtain N SRS resource sets for uplink transmission configured by the network side device, where N is greater than or equal to 1;

[0040] The processor is configured to: determine precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1;

[0041] The communication interface is configured to: send the M SRSs according to the precoding;

[0042] or,

[0043] The communication interface is used to: obtain parameter information of a codebook subset configured by a network-side device;

[0044] The processor is configured to: determine SRS precoding according to parameter information of the codebook subset;

[0045] The communication interface is configured to send an SRS based on the precoding.

[0046] In the eleventh aspect, a network side device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect or the fourth aspect are implemented.

[0047] In a twelfth aspect, a network-side device is provided, including a processor and a communication interface;

[0048] The communication interface is used for:

[0049] Configure N SRS resource sets for uplink transmission for the terminal, where N is greater than or equal to 1;

[0050] The network side device receives M SRSs sent by the terminal according to precoding, where the precoding is determined according to a reference signal associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1;

[0051] or,

[0052] The communication interface is used for:

[0053] Sending parameter information of the codebook subset to the terminal;

[0054] An SRS is received that is sent by the terminal according to precoding, wherein the precoding is determined according to parameter information of the codebook subset.

[0055] In the thirteenth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect, the second aspect, the third aspect, or the fourth aspect are implemented.

[0056] In the fourteenth aspect, a monitoring reference signal SRS transmission system is provided, including: a terminal and a network side device, the terminal can be used to execute the steps of the method described in the first aspect or the third aspect, and the network side device can be used to execute the steps of the method described in the second aspect or the fourth aspect.

[0057] In the fifteenth aspect, a chip is provided, which includes a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method described in the first aspect or the second aspect or the third aspect or the fourth aspect.

[0058] In the sixteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0059] In the seventeenth aspect, an embodiment of the present application provides a monitoring reference signal (SRS) transmission device, which is used to execute the steps of the monitoring reference signal (SRS) transmission method as described in the first aspect, the second aspect, the third aspect, or the fourth aspect.

[0060] In an embodiment of the present application, the terminal is able to obtain N SRS resource sets for uplink transmission configured by the network side device, thereby determining the precoding of M SRSs based on the reference signals associated with the N SRS resource sets for uplink transmission, and then sending M SRSs based on the determined precoding, wherein N is greater than or equal to 1, and M is greater than or equal to 1. That is, in an embodiment of the present application, the network side device can configure at least one SRS resource set for the terminal, so that based on the reference signal associated with at least one SRS resource set, the precoding of at least one SRS can be determined, and then multiple SRSs can be sent based on the precoding. In this case, the network side device can determine multiple uplink transmission-coherent precodings based on the multiple SRSs sent by the terminal, thereby achieving uplink coherent transmission. Therefore, an embodiment of the present application provides an SRS transmission method suitable for uplink coherent transmission scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] FIG1 is a block diagram of a wireless communication system to which embodiments of the present application may be applied;

[0062] FIG2 is a flowchart of a method for transmitting a monitoring reference signal (SRS) according to an embodiment of the present application;

[0063] FIG3 is a flowchart of another method for transmitting a monitoring reference signal (SRS) in an embodiment of the present application;

[0064] FIG4 is a structural block diagram of a monitoring reference signal SRS transmission device according to an embodiment of the present application;

[0065] FIG5 is a structural block diagram of another apparatus for transmitting a listening reference signal (SRS) in an embodiment of the present application;

[0066] FIG6 is a flowchart of a method for transmitting a monitoring reference signal (SRS) according to an embodiment of the present application;

[0067] FIG7 is a flowchart of another method for transmitting a monitoring reference signal SRS in an embodiment of the present application;

[0068] FIG8 is a structural block diagram of a monitoring reference signal SRS transmission device according to an embodiment of the present application;

[0069] FIG9 is a structural block diagram of another apparatus for transmitting a listening reference signal (SRS) in an embodiment of the present application;

[0070] FIG10 is a structural block diagram of a communication device in an embodiment of the present application;

[0071] FIG11 is a block diagram of a terminal in an embodiment of the present application;

[0072] FIG12 is a structural block diagram of a network-side device in an embodiment of the present application. Specific embodiments

[0073] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0074] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "A or B" covers three options, namely, Option 1: including A but not including B; Option 2: including B but not including A; Option 3: including both A and B. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.

[0075] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0076] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other 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) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the technology described can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation, 6G) communication system.

[0077] FIG1 is a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network-side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer), a notebook computer, a personal digital assistant (PDA), a handheld computer, a netbook, an ultra-mobile personal computer (UMPC), a mobile internet device (MID), an augmented reality (AR), a virtual reality (VR) device, a robot, a wearable device (Wearable Device), an aircraft (Flight Vehicle), a vehicle-mounted device (VUE), a ship-mounted device, a pedestrian user equipment (PUE), a smart home (home appliances with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), a game console, a personal computer (PC), an ATM, or a self-service machine, or other terminal-side devices. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among them, the vehicle-mounted device can also be called a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include an access network device or a core network device, wherein the access network device may also be called a radio access network (Radio Access Network, RAN) device, a radio access network function or a radio access network unit. The access network device may include a base station, a wireless local area network (WLAN) access point (AP) or a wireless fidelity (WiFi) node, etc.Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the relevant field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0078] To facilitate understanding of the monitoring reference signal (SRS) transmission in the embodiments of the present application, the following related technologies are first introduced:

[0079] 1. In the codebook-based uplink transmission solution, an example of the TPMI field indication is shown in Table 1:

[0080] Table 1 Examples of indications for TPMI domains

[0081] 2. In the non-codebook-based transmission scheme, the SRS Resource Indicator (SRI) field of the DCI selects a subset of SRS resource indices (i.e., an SRI group) from a predefined SRI index table to inform the UE of the precoding matrix used for PUSCH precoding. An example of the indication is shown in Table 2.

[0082] Table 2 SRI indication for non-codebook based PUSCH transmission

[0083] The following describes in detail the monitoring reference signal (SRS) transmission method provided by the embodiments of the present application through some embodiments and application scenarios in conjunction with the accompanying drawings.

[0084] An embodiment of the present application provides a method for transmitting a monitoring reference signal (SRS). As shown in FIG2 , the method may include the following steps 201 to 203:

[0085] Step 201: The terminal obtains N SRS resource sets for uplink transmission configured by a network-side device.

[0086] Wherein, N is greater than or equal to 1.

[0087] In addition, it should be noted that the N SRS resource sets used for uplink transmission may be the SRS resource sets in the codebook-based uplink transmission scheme described above, or may be the SRS resource sets in the non-codebook-based transmission scheme described above.

[0088] Step 202: The terminal determines precoding of M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission.

[0089] Wherein, M is greater than or equal to 1.

[0090] It should be noted that one or more SRSs may be configured in an SRS resource set. Therefore, the number N of SRS resource sets configured by the network side device for the terminal may be equal to or different from the number M of SRSs sent by the terminal.

[0091] In addition, among the N SRS resource sets used for uplink transmission, some or all of the SRS resource sets may be associated with reference signals; the reference signals associated with different SRS resource sets may be the same or different, for example, N SRS resource sets may be associated with the same first reference signal, or each of the N SRS resource sets may be associated with a second reference signal. Exemplarily, the reference signals associated with the N SRS resource sets may be CSI-RS.

[0092] Optionally, in step 202, the terminal determines precoding of the M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission, including the following step A-1 or step A-2:

[0093] Step A-1: ​​The terminal determines precoding of the M SRSs according to a first reference signal, where the first reference signal is one of the reference signals associated with the N SRS resource sets for uplink transmission;

[0094] Step A-2: The terminal determines the precoding of the SRS of the i-th SRS resource set according to the second reference signal associated with the i-th SRS resource set, where i is an integer from 1 to N.

[0095] The SRS of the i-th SRS resource set refers to the SRS configured in the i-th SRS resource set.

[0096] From the above, it can be seen that M SRSs can use one precoding (that is, M SRSs use a large precoding, rather than M SRSs all using the same small precoding). In this way, regardless of whether the N SRS resource sets are associated with the same reference signal or are respectively associated with a reference signal, one of the reference signals can be selected to determine the precoding of the M SRSs; or, if the N SRS resource sets used for uplink transmission are respectively associated with a second reference signal, then each SRS resource set can be calculated to obtain a corresponding precoding. In this way, all SRSs in each SRS resource set (that is, all SRSs used for transmission in each SRS resource set) use one precoding.

[0097] In step A-1, precoding of M SRSs is calculated based on the first reference signal, so that N SRS resource sets correspond to coherent transmission, and then, PUSCH can achieve coherent transmission, thereby improving uplink transmission performance.

[0098] In addition, in step A-2, when N SRS resource sets are associated with different second reference signals, the precoding corresponding to each SRS resource set is obtained according to the different second reference signals. In this case, the network side device can calculate the coherent precoding of the uplink transmission based on the precoding corresponding to each SRS resource set, thereby realizing coherent uplink transmission and improving the uplink transmission performance.

[0099] Optionally, the first reference signal is a reference signal associated with a target SRS resource set;

[0100] The target SRS resource set is one of the following:

[0101] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0102] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0103] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0104] Step 203: The terminal sends the M SRSs according to the precoding.

[0105] Among them, after the terminal determines the precoding of M SRSs, it precodes the M SRSs according to the precoding and then sends them; after the network side device receives the M SRSs, it can determine N uplink transmission coherent precodings according to the M SRSs, thereby realizing uplink coherent transmission.

[0106] As can be seen from the above steps 201 to 203, in the embodiment of the present application, the network-side device can configure at least one SRS resource set for the terminal. In this way, based on the reference signal associated with at least one SRS resource set, the precoding of at least one SRS can be determined, and then multiple SRSs can be sent based on the precoding. In this case, the network-side device can determine multiple uplink transmission-coherent precodings based on the multiple SRSs sent by the terminal, thereby achieving uplink coherent transmission. Therefore, the embodiment of the present application provides an SRS transmission method suitable for uplink coherent transmission scenarios.

[0107] Optionally, in step 202, the terminal determines, according to the reference signals associated with the N SRS resource sets for uplink transmission, precoding of M SRSs, including:

[0108] When the terminal determines that the network-side device supports the target transmission scheme, the terminal determines, according to the reference signal associated with the N SRS resource sets for uplink transmission, precoding of M SRSs;

[0109] Wherein, in any of the following cases B-1 to B-4, the terminal determines that the network-side device supports the target transmission scheme:

[0110] Item B-1: The terminal receives a preset signaling; that is, the preset signaling enables the target transmission scheme;

[0111] The preset signaling may be RRC signaling;

[0112] Item B-2: The terminal receives a first signaling, where the first signaling is used to activate N SRS resource sets for uplink transmission; that is, the terminal receives the first signaling, indicating that the target transmission scheme is enabled;

[0113] The first signaling may be a network side signaling;

[0114] Item B-3: The SRS resource used for uplink transmission satisfies the first condition, that is, when the SRS resource used for uplink transmission satisfies the first condition, the target transmission scheme is enabled;

[0115] Optionally, the first condition includes that the SRS resources used for uplink transmission are on the same frequency domain unit; wherein the frequency domain unit may be an orthogonal frequency division multiplexing (OFDM) symbol;

[0116] Item B-4: The SRS resource set used for uplink transmission satisfies the second condition, that is, when the SRS resource set used for uplink transmission satisfies the second condition, the target transmission scheme is enabled;

[0117] Optionally, the second condition includes that SRS resources in an SRS resource set used for uplink transmission are in the same frequency domain unit; wherein the frequency domain unit may be an OFDM symbol.

[0118] Optionally, the method further includes:

[0119] The terminal obtains parameter information of a codebook subset configured by a network-side device;

[0120] In the above step A-1, the terminal determines, according to the first reference signal, precoding of the M SRSs, including:

[0121] When the parameter information of the codebook subset indicates one codebook subset, the terminal determines, according to the first reference signal, precodings for the M SRSs from precodings corresponding to the one codebook subset;

[0122] In the above step A-2, the terminal determines the precoding of the SRS of the i-th SRS resource set according to the second reference signal associated with the i-th SRS resource set, including:

[0123] When the parameter information of the codebook subset indicates N codebook subsets, the terminal determines the precoding of the SRS of the i-th SRS resource set from the precoding corresponding to the i-th codebook subset in the N codebook subsets according to the second reference signal associated with the i-th SRS resource set.

[0124] As mentioned above, in the current non-codebook transmission scheme, the terminal calculates the SRS precoding matrix based on the uplink channel information. In the process of calculating the SRS, different terminals use different algorithms, but the directions corresponding to the precoding matrices calculated may be relatively close. Such terminals are relatively close to the transmission direction of the network-side device, and the interference between them is large, making it difficult to pair them, that is, it is difficult to implement multi-user scheduling for these terminals. In the embodiment of the present application, the network-side device can also configure a codebook subset for each terminal separately, so that the terminal determines the precoding of the SRS according to its own codebook subset. In this way, the directions corresponding to the SRS precoding determined by different terminals based on different codebook subsets can be kept at a relatively long distance, thereby reducing interference, and then facilitating pairing, that is, facilitating multi-user scheduling.

[0125] As can be seen from the above, the network side device can configure a codebook subset for a terminal, so that the terminal can determine the precoding of M SRSs according to the codebook subset (that is, according to the above-mentioned first reference signal, determine the precoding of M SRSs from the corresponding precoding of the codebook subset);

[0126] Alternatively, the network side device may also configure N codebook subsets for a terminal, so that the terminal determines the precoding of the SRS of the i-th SRS resource set according to the i-th codebook subset (that is, according to the second reference signal associated with the i-th SRS resource set, the precoding of the SRS of the i-th SRS resource set is determined from the corresponding precoding of the i-th codebook subset). Optionally, the parameter information of the codebook subset includes at least one of the following:

[0127] Discrete Fourier Transform (DFT) vector grouping;

[0128] Basis vectors for the reflection transformation (Householder).

[0129] Optionally, the parameter information of the codebook subset is indicated by at least one of the following items C-1 to C-3:

[0130] Item C-1: Radio Resource Control (RRC) signaling;

[0131] Item C-2: Media Access Control Control Element (MAC CE);

[0132] Item C-3: Downlink Control Information (DCI).

[0133] It can be seen from this that the parameter information of the codebook subset can be indicated by at least one of RRC signaling, MAC CE, and DCI.

[0134] The network side device may indicate codebook subsets of multiple terminals in the DCI.

[0135] Optionally, before the terminal obtains parameter information of the codebook subset configured by the network-side device, the method further includes:

[0136] The terminal reports the capability information of the terminal to the network side device;

[0137] The parameter information of the codebook subset is determined according to the capability information.

[0138] It can be seen from this that the terminal can also report its capability information to the network side device, so that the network side device can configure a suitable codebook subset for the terminal based on the capability information of the terminal.

[0139] Optionally, the capability information includes at least one of the following items D-1 to D-3:

[0140] Item D-1: whether the terminal supports the network-side device configuration codebook subset;

[0141] Item D-2: The number of ports supported by the terminal (i.e., the number of available transmit / receive ports (TXRUs));

[0142] Item D-3: Antenna layout information of the terminal.

[0143] From this, it can be seen that the terminal can report to the network side device whether it supports the network side device configuration codebook subset, the number of supported ports, and at least one of the antenna layout, so that the network side device can configure a suitable codebook subset for the terminal based on whether the terminal supports the network side device configuration codebook subset, the number of ports supported by the terminal, and at least one of the antenna layout of the terminal.

[0144] Optionally, before the terminal sends the M SRSs according to the precoding, the method further includes:

[0145] The terminal determines, according to the N SRS resource sets for uplink transmission, transmit powers of the M SRSs;

[0146] The terminal sending the M SRSs according to the precoding includes:

[0147] The terminal transmits the M SRSs according to the precoding and the transmit power.

[0148] From this, it can be seen that if the network side device configures N SRS resource sets for the terminal, the terminal can also determine the transmission power of M SRSs based on the N SRS resource sets, and then send M SRSs based on the transmission power and the precoding determined in the previous text based on the reference signal associated with the N SRS resource sets.

[0149] Optionally, the terminal determines, according to the N SRS resource sets for uplink transmission, the transmit powers of the M SRSs, including:

[0150] The terminal determines a target SRS resource set, and determines the transmit power of the target SRS resource set as the transmit power of the M SRSs (that is, the transmit power of the M SRSs is consistent with the transmit power of the target SRS resource set);

[0151] The target SRS resource set is one of the following items E-1 to E-3:

[0152] Item E-1: the SRS resource set with the minimum transmit power among the N SRS resource sets used for uplink transmission;

[0153] From the E-1 item, we can see that the transmit power of M SRSs can be the minimum transmit power of N SRS resources.

[0154] Item E-2: the SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0155] From item E-2, we know that the transmit power of M SRSs can be the transmit power of the SRS resource set with the smallest index among the N SRS resource sets;

[0156] Item E-3: the first SRS resource set among the N SRS resource sets used for uplink transmission.

[0157] It can be seen from item E-3 that the transmit power of the M SRSs can be the transmit power of the first SRS resource set among the N SRS resource sets.

[0158] Optionally, the terminal determines, according to the N SRS resource sets for uplink transmission, the transmit powers of the M SRSs, including:

[0159] The terminal determines a target path loss reference signal, and determines the path losses of the M SRSs according to the target path loss reference signal;

[0160] The terminal determines, according to the path losses of the M SRSs, the transmit powers of the M SRSs;

[0161] The target path loss reference signal is determined according to the path loss with the smallest loss among the N paths corresponding to the N SRS resource sets for uplink transmission.

[0162] It should be noted that one SRS resource set corresponds to one path, and one path has one path loss (ie, path loss).

[0163] It can be seen from this that the transmit power of the M SRSs can also be determined according to the minimum path loss among the N paths corresponding to the N SRS resource sets.

[0164] Optionally, the method further includes:

[0165] The terminal receives the uplink transmission parameters sent by the network side device according to the received M SRSs;

[0166] The uplink transmission parameter includes at least one of the first indication information and the second indication information;

[0167] The first indication information is used to indicate precoding for uplink transmission;

[0168] The second indication information is used to indicate the beam for uplink transmission.

[0169] It can be seen that through the above step 203, after the terminal sends M SRSs, the network side device can determine the uplink transmission parameters based on the received M SRSs, thereby indicating at least one of the uplink transmission precoding and beam to the terminal, so that the terminal performs uplink transmission based on these uplink transmission parameters.

[0170] Optionally, the first indication information includes at least one of the following:

[0171] At least one SRS resource indicator SRI;

[0172] At least one coherent phase.

[0173] At least one of the at least one SRI and the at least one coherent phase may be carried in the DCI.

[0174] Optionally, the target transmission scheme is coherent joint reception (CJR) of N transmitting and receiving points TRP.

[0175] For example, when the network side device supports CJR of N TRPs, the network side device can configure N SRS resource sets for uplink transmission for the terminal, so that the terminal determines the precoding of M SRSs based on the reference signals associated with the N SRS resource sets, determines the transmission power of M SRSs based on the N SRS resource sets, and then sends M SRSs based on the precoding and transmission power of the M SRSs.

[0176] An embodiment of the present application further provides a method for transmitting a monitoring reference signal (SRS). As shown in FIG3 , the method may include the following steps 301 to 302:

[0177] Step 301: The network-side device configures N SRS resource sets for uplink transmission for the terminal.

[0178] Wherein, N is greater than or equal to 1.

[0179] In addition, it should be noted that the N SRS resource sets used for uplink transmission may be the SRS resource sets in the codebook-based uplink transmission scheme described above, or may be the SRS resource sets in the non-codebook-based transmission scheme described above.

[0180] Step 302: The network-side device receives M SRSs sent by the terminal according to precoding.

[0181] The precoding is determined according to the reference signal associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

[0182] In addition, among the N SRS resource sets used for uplink transmission, some or all of the SRS resource sets may be associated with reference signals; the reference signals associated with different SRS resource sets may be the same or different, for example, N SRS resource sets may be associated with the same first reference signal, or each of the N SRS resource sets may be associated with a second reference signal. Exemplarily, the reference signals associated with the N SRS resource sets may be CSI-RS.

[0183] The precoding of M SRSs can be the same. In this case, the precoding of M SRSs can be determined based on the first reference signal, which is one of the reference signals associated with N SRS resource sets; or, the precoding of the SRS of the i-th SRS resource set is determined based on the second reference signal associated with the i-th SRS resource set.

[0184] Optionally, the first reference signal is a reference signal associated with a target SRS resource set;

[0185] The target SRS resource set is one of the following:

[0186] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0187] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0188] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0189] In addition, after the terminal determines the precoding of M SRSs, it precodes the M SRSs according to the precoding and then sends them; after the network side device receives the M SRSs, it can determine N uplink transmission coherent precodings based on the M SRSs, thereby realizing uplink coherent transmission.

[0190] As can be seen from the above steps 301 to 302, in the embodiment of the present application, the network-side device can configure at least one SRS resource set for the terminal. In this way, based on the reference signal associated with the at least one SRS resource set, the precoding of at least one SRS can be determined, and then multiple SRSs can be sent based on the precoding. In this case, the network-side device can determine multiple uplink transmission-coherent precodings based on the multiple SRSs sent by the terminal, thereby achieving uplink coherent transmission. Therefore, the embodiment of the present application provides an SRS transmission method suitable for uplink coherent transmission scenarios.

[0191] Optionally, the method further includes:

[0192] The network-side device configures parameter information of a codebook subset for the terminal, where the parameter information of the codebook subset indicates at least one codebook subset.

[0193] It should be noted that in the current non-codebook transmission scheme, the terminal calculates the SRS precoding matrix based on the uplink channel information. In the process of calculating the SRS, different terminals use different algorithms, but the directions corresponding to the precoding matrices calculated may be relatively close. Such terminals are relatively close to the transmission direction of the network-side device, and the interference between them is relatively large, making it difficult to pair them, that is, it is difficult to implement multi-user scheduling for these terminals. In the embodiment of the present application, the network-side device can also configure a codebook subset for each terminal separately, so that the terminal determines the precoding of the SRS according to its own codebook subset. In this way, the directions corresponding to the SRS precoding determined by different terminals based on different codebook subsets can be kept at a relatively long distance, thereby reducing interference, and then facilitating pairing, that is, facilitating multi-user scheduling.

[0194] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0195] Discrete Fourier transform vector grouping;

[0196] Basis vectors for the reflection transformation.

[0197] Optionally, the parameter information of the codebook subset is indicated by at least one of the following items C-1 to C-3:

[0198] Item C-1: Radio Resource Control (RRC) signaling;

[0199] Item C-2: Media Access Control Control Element (MAC CE);

[0200] Item C-3: Downlink Control Information (DCI).

[0201] It can be seen from this that the parameter information of the codebook subset can be indicated by at least one of RRC signaling, MAC CE, and DCI.

[0202] The network side device may indicate codebook subsets of multiple terminals in the DCI.

[0203] Optionally, before the network-side device configures parameter information of a codebook subset for the terminal, the method further includes:

[0204] The network side device receives the capability information of the terminal reported by the terminal;

[0205] The parameter information of the codebook subset is determined according to the capability information.

[0206] It can be seen from this that the terminal can also report its capability information to the network side device, so that the network side device can configure a suitable codebook subset for the terminal based on the capability information of the terminal.

[0207] Optionally, the capability information includes at least one of the following items D-1 to D-3:

[0208] Item D-1: whether the terminal supports the network-side device configuration codebook subset;

[0209] Item D-2: The number of ports supported by the terminal (i.e., the number of available transmit / receive ports (TXRUs));

[0210] Item D-3: Antenna layout information of the terminal.

[0211] From this, it can be seen that the terminal can report to the network side device whether it supports the network side device configuration codebook subset, the number of supported ports, and at least one of the antenna layout, so that the network side device can configure a suitable codebook subset for the terminal based on whether the terminal supports the network side device configuration codebook subset, the number of ports supported by the terminal, and at least one of the antenna layout of the terminal.

[0212] The monitoring reference signal SRS transmission method provided in the embodiment of the present application can be executed by a monitoring reference signal SRS transmission device. In the embodiment of the present application, the monitoring reference signal SRS transmission method performed by the monitoring reference signal SRS transmission device is used as an example to illustrate the monitoring reference signal SRS transmission device provided in the embodiment of the present application.

[0213] The embodiment of the present application further provides a monitoring reference signal (SRS) transmission device, which is applied to a terminal. As shown in FIG4 , the monitoring reference signal (SRS) transmission device 40 includes the following modules:

[0214] A first acquisition module 401 is configured to acquire N SRS resource sets for uplink transmission configured by a network-side device, where N is greater than or equal to 1;

[0215] A first determining module 402 is configured to determine precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1;

[0216] The first sending module 403 is configured to send the M SRSs according to the precoding.

[0217] Optionally, the first determining module 402 is specifically configured to:

[0218] When it is determined that the network-side device supports the target transmission scheme, determining precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission;

[0219] Wherein, in one of the following cases, it is determined that the network side device supports the target transmission scheme:

[0220] Receiving a preset signaling;

[0221] receiving first signaling, where the first signaling is used to activate N SRS resource sets for uplink transmission;

[0222] The SRS resources used for uplink transmission meet the first condition;

[0223] The SRS resource set used for uplink transmission meets the second condition.

[0224] Optionally, the first condition includes that SRS resources used for uplink transmission are on the same frequency domain unit;

[0225] The second condition includes that the SRS resources in the SRS resource set used for uplink transmission are in the same frequency domain unit.

[0226] Optionally, the first determining module 402 is specifically configured to:

[0227] Determining precoding of the M SRSs according to a first reference signal, where the first reference signal is one of the reference signals associated with the N SRS resource sets for uplink transmission;

[0228] or,

[0229] The precoding of the SRS of the i-th SRS resource set is determined according to the second reference signal associated with the i-th SRS resource set, where i is an integer from 1 to N.

[0230] Optionally, the first reference signal is a reference signal associated with a target SRS resource set;

[0231] The target SRS resource set is one of the following:

[0232] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0233] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0234] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0235] Optionally, the device further comprises:

[0236] A third acquisition module is used to obtain parameter information of a codebook subset configured by a network side device;

[0237] When the first determining module 402 determines the precoding of the M SRSs according to the first reference signal, it is specifically configured to:

[0238] When the parameter information of the codebook subset indicates one codebook subset, determining, according to the first reference signal, precodings for the M SRSs from corresponding precodings of the one codebook subset;

[0239] When the first determining module 402 determines the precoding of the SRS of the i-th SRS resource set according to the second reference signal associated with the i-th SRS resource set, it is specifically configured to:

[0240] When the parameter information of the codebook subset indicates N codebook subsets, the precoding of the SRS of the i-th SRS resource set is determined from the precoding corresponding to the i-th codebook subset in the N codebook subsets according to the second reference signal associated with the i-th SRS resource set.

[0241] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0242] Discrete Fourier transform vector grouping;

[0243] Basis vectors for the reflection transformation.

[0244] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0245] Radio Resource Control (RRC) signaling;

[0246] Media Access Control Element MAC CE;

[0247] Downlink control information DCI.

[0248] Optionally, the device further comprises:

[0249] A reporting module, configured to report the capability information of the terminal to the network side device;

[0250] The parameter information of the codebook subset is determined according to the capability information.

[0251] Optionally, the capability information includes at least one of the following:

[0252] Whether the terminal supports the network-side device configuration codebook subset;

[0253] The number of ports supported by the terminal;

[0254] Antenna layout information of the terminal.

[0255] Optionally, the device further comprises:

[0256] A third determining module is configured to determine the transmit power of the M SRSs according to the N SRS resource sets for uplink transmission;

[0257] The first sending module 403 is specifically configured to:

[0258] The M SRSs are transmitted according to the precoding and the transmission power.

[0259] Optionally, the third determining module is specifically configured to:

[0260] Determine a target SRS resource set, and determine the transmit power of the target SRS resource set as the transmit power of the M SRSs;

[0261] The target SRS resource set is one of the following:

[0262] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0263] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0264] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0265] Optionally, the third determining module is specifically configured to:

[0266] Determine a target path loss reference signal, and determine the path losses of the M SRSs according to the target path loss reference signal;

[0267] determining transmit powers of the M SRSs according to path losses of the M SRSs;

[0268] The target path loss reference signal is determined according to the path loss with the smallest loss among the N paths corresponding to the N SRS resource sets for uplink transmission.

[0269] Optionally, the device further comprises:

[0270] A third receiving module is configured to receive uplink transmission parameters sent by the network side device according to the received M SRSs;

[0271] The uplink transmission parameter includes at least one of the first indication information and the second indication information;

[0272] The first indication information is used to indicate precoding for uplink transmission;

[0273] The second indication information is used to indicate the beam for uplink transmission.

[0274] Optionally, the first indication information includes at least one of the following:

[0275] At least one SRS resource indicator SRI;

[0276] At least one coherent phase.

[0277] Optionally, the target transmission scheme is coherent joint reception CJR of N transmitting and receiving points TRP.

[0278] The SRS transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal; for example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and is not specifically limited in the embodiments of the present application.

[0279] The monitoring reference signal SRS transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 2 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0280] The embodiment of the present application further provides a monitoring reference signal (SRS) transmission device, which is applied to a network-side device. As shown in FIG5 , the monitoring reference signal (SRS) transmission device 50 includes the following modules:

[0281] A first configuration module 501 is configured to configure N SRS resource sets for uplink transmission for a terminal, where N is greater than or equal to 1;

[0282] The first receiving module 502 is configured to receive M SRSs sent by the terminal according to precoding, where the precoding is determined according to reference signals associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

[0283] Optionally, the device further comprises:

[0284] The second configuration module is configured to configure parameter information of a codebook subset for the terminal, where the parameter information of the codebook subset indicates at least one codebook subset.

[0285] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0286] Discrete Fourier transform vector grouping;

[0287] Basis vectors for the reflection transformation.

[0288] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0289] Radio Resource Control (RRC) signaling;

[0290] Media Access Control Element MAC CE;

[0291] Downlink control information DCI.

[0292] Optionally, the device further comprises:

[0293] a fourth receiving module, configured to receive capability information of the terminal reported by the terminal;

[0294] The parameter information of the codebook subset is determined according to the capability information.

[0295] Optionally, the capability information includes at least one of the following:

[0296] Whether the terminal supports the network-side device configuration codebook subset;

[0297] The number of ports supported by the terminal;

[0298] Antenna layout information of the terminal.

[0299] The SRS transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device; for example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0300] The monitoring reference signal SRS transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 3 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0301] In addition, as mentioned above, in the current non-codebook transmission scheme, the terminal calculates the precoding matrix of the SRS based on the uplink channel information. In the process of calculating the SRS, different terminals adopt different algorithms, but the directions corresponding to the precoding matrices calculated may be relatively close. Such terminals are close to the transmission directions of the network-side devices, and the interference between them is large, making it difficult to pair them, that is, it is difficult to implement multi-user scheduling for these terminals. To address this problem, an embodiment of the present application provides a method for transmitting a monitoring reference signal (SRS). As shown in FIG6 , the method may include the following steps 601 to 603:

[0302] Step 601: The terminal obtains parameter information of a codebook subset configured by a network-side device.

[0303] The network side device may send parameter information of the codebook subset to the terminal through network signaling; that is, the codebook subset is indicated through the network signaling; in this way, after the terminal obtains the codebook subset, it may determine the SRS precoding (that is, the precoding matrix) according to the codebook subset.

[0304] Step 602: The terminal determines SRS precoding according to the parameter information of the codebook subset.

[0305] Optionally, the terminal determines, according to the parameter information of the codebook subset, precoding of the SRS, including:

[0306] The terminal determines the precoding of the SRS from the precoding indicated by the parameter information of the codebook subset according to the uplink channel information.

[0307] It can be seen from this that the terminal can select the precoding that matches the uplink channel information from the precoding indicated by the parameter information of the codebook subset.

[0308] Step 603: The terminal sends an SRS based on the precoding.

[0309] It can be seen from steps 601 to 603 that in an embodiment of the present application, the network side device can configure a codebook subset for each terminal separately, so that the terminal determines the precoding of the SRS according to its own codebook subset. In this way, the directions corresponding to the precoding of the SRS determined by different terminals based on different codebook subsets can be kept at a longer distance, thereby reducing interference, making it easier to pair and realize multi-user scheduling.

[0310] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0311] Discrete Fourier transform vector grouping;

[0312] Basis vectors for the reflection transformation.

[0313] Optionally, the parameter information of the codebook subset is indicated by at least one of the following items C-1 to C-3:

[0314] Item C-1: Radio Resource Control (RRC) signaling;

[0315] Item C-2: Media Access Control Control Element (MAC CE);

[0316] Item C-3: Downlink Control Information (DCI).

[0317] It can be seen from this that the parameter information of the codebook subset can be indicated by at least one of RRC signaling, MAC CE, and DCI.

[0318] The network side device may indicate codebook subsets of multiple terminals in the DCI.

[0319] Optionally, before the terminal obtains parameter information of the codebook subset configured by the network-side device, the method further includes:

[0320] The terminal reports the capability information of the terminal to the network side device;

[0321] The parameter information of the codebook subset is determined according to the capability information.

[0322] It can be seen from this that the terminal can also report its capability information to the network side device, so that the network side device can configure a suitable codebook subset for the terminal based on the capability information of the terminal.

[0323] Optionally, the capability information includes at least one of the following items D-1 to D-3:

[0324] Item D-1: whether the terminal supports the network-side device configuration codebook subset;

[0325] Item D-2: The number of ports supported by the terminal (i.e., the number of available transmit / receive ports (TXRUs));

[0326] Item D-3: Antenna layout information of the terminal.

[0327] From this, it can be seen that the terminal can report to the network side device whether it supports the network side device configuration codebook subset, the number of supported ports, and at least one of the antenna layout, so that the network side device can configure a suitable codebook subset for the terminal based on whether the terminal supports the network side device configuration codebook subset, the number of ports supported by the terminal, and at least one of the antenna layout of the terminal.

[0328] To sum up, the embodiments of the present application provide a network-controllable non-codebook transmission scheme; and, considering the coherent reception capability on the network side, an uplink transmission scheme for coherent reception based on a multi-TRP transmission architecture is also proposed.

[0329] An embodiment of the present application further provides a method for transmitting a monitoring reference signal (SRS). As shown in FIG7 , the method may include the following steps 701 to 702:

[0330] Step 701: The network-side device sends parameter information of a codebook subset to the terminal.

[0331] The network side device may send parameter information of the codebook subset to the terminal through network signaling; that is, the codebook subset is indicated through the network signaling; in this way, after the terminal obtains the codebook subset, it may determine the SRS precoding (that is, the precoding matrix) according to the codebook subset.

[0332] Step 702: The network-side device receives the SRS sent by the terminal according to precoding.

[0333] The precoding is determined according to parameter information of the codebook subset.

[0334] It can be seen from steps 701 to 702 that in an embodiment of the present application, the network side device can configure a codebook subset for each terminal separately, so that the terminal determines the precoding of the SRS according to its own codebook subset. In this way, the directions corresponding to the precoding of the SRS determined by different terminals based on different codebook subsets can be kept at a longer distance, thereby reducing interference, making it easier to pair and thus facilitate multi-user scheduling.

[0335] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0336] Discrete Fourier transform vector grouping;

[0337] Basis vectors for the reflection transformation.

[0338] Optionally, the parameter information of the codebook subset is indicated by at least one of the following items C-1 to C-3:

[0339] Item C-1: Radio Resource Control (RRC) signaling;

[0340] Item C-2: Media Access Control Control Element (MAC CE);

[0341] Item C-3: Downlink Control Information (DCI).

[0342] It can be seen from this that the parameter information of the codebook subset can be indicated by at least one of RRC signaling, MAC CE, and DCI.

[0343] The network side device may indicate codebook subsets of multiple terminals in the DCI.

[0344] Optionally, before the network side device sends the parameter information of the codebook subset to the terminal, the method further includes:

[0345] The network side device receives the capability information of the terminal reported by the terminal;

[0346] The parameter information of the codebook subset is determined according to the capability information.

[0347] It can be seen from this that the terminal can also report its capability information to the network side device, so that the network side device can configure a suitable codebook subset for the terminal based on the capability information of the terminal.

[0348] Optionally, the capability information includes at least one of the following items D-1 to D-3:

[0349] Item D-1: whether the terminal supports the network-side device configuration codebook subset;

[0350] Item D-2: The number of ports supported by the terminal (i.e., the number of available transmit / receive ports (TXRUs));

[0351] Item D-3: Antenna layout information of the terminal.

[0352] From this, it can be seen that the terminal can report to the network side device whether it supports the network side device configuration codebook subset, the number of supported ports, and at least one of the antenna layout, so that the network side device can configure a suitable codebook subset for the terminal based on whether the terminal supports the network side device configuration codebook subset, the number of ports supported by the terminal, and at least one of the antenna layout of the terminal.

[0353] An embodiment of the present application further provides a monitoring reference signal (SRS) transmission device, which is applied to a terminal. As shown in FIG8 , the monitoring reference signal (SRS) transmission device 80 includes the following modules:

[0354] The second acquisition module 801 is used to obtain parameter information of a codebook subset configured by a network-side device;

[0355] A second determining module 802 is configured to determine SRS precoding according to the parameter information of the codebook subset;

[0356] The second sending module 803 is configured to send the SRS based on the precoding.

[0357] Optionally, the second determining module 802 is specifically configured to:

[0358] According to the uplink channel information, the precoding of the SRS is determined from the precoding indicated by the parameter information of the codebook subset.

[0359] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0360] Discrete Fourier transform vector grouping;

[0361] Basis vectors for the reflection transformation.

[0362] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0363] Radio Resource Control (RRC) signaling;

[0364] Media Access Control Element MAC CE;

[0365] Downlink control information DCI.

[0366] Optionally, the device further comprises:

[0367] A reporting module, configured to report the capability information of the terminal to the network side device;

[0368] The parameter information of the codebook subset is determined according to the capability information.

[0369] Optionally, the capability information includes at least one of the following:

[0370] Whether the terminal supports the network-side device configuration codebook subset;

[0371] The number of ports supported by the terminal;

[0372] Antenna layout information of the terminal.

[0373] The SRS transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a terminal; for example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and is not specifically limited in the embodiments of the present application.

[0374] The monitoring reference signal SRS transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 6 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0375] The embodiment of the present application further provides a monitoring reference signal (SRS) transmission device, which is applied to a network-side device. As shown in FIG9 , the monitoring reference signal (SRS) transmission device 90 includes the following modules:

[0376] The third sending module 901 is configured to send parameter information of a codebook subset to a terminal;

[0377] The second receiving module 902 is configured to receive an SRS sent by the terminal according to precoding, wherein the precoding is determined according to parameter information of the codebook subset.

[0378] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0379] Discrete Fourier transform vector grouping;

[0380] Basis vectors for the reflection transformation.

[0381] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0382] Radio Resource Control (RRC) signaling;

[0383] Media Access Control Element MAC CE;

[0384] Downlink control information DCI.

[0385] Optionally, the device further comprises:

[0386] a fourth receiving module, configured to receive capability information of the terminal reported by the terminal;

[0387] The parameter information of the codebook subset is determined according to the capability information.

[0388] Optionally, the capability information includes at least one of the following:

[0389] Whether the terminal supports the network-side device configuration codebook subset;

[0390] The number of ports supported by the terminal;

[0391] Antenna layout information of the terminal.

[0392] The SRS transmission device in the embodiments of the present application can be an electronic device, such as an electronic device with an operating system, or a component of an electronic device, such as an integrated circuit or chip. The electronic device can be a network-side device; for example, the network-side device can include, but is not limited to, the types of network-side devices 12 listed above, and is not specifically limited in the embodiments of the present application.

[0393] The monitoring reference signal SRS transmission device provided in the embodiment of the present application can implement each process implemented in the method embodiment of Figure 7 and achieve the same technical effect. To avoid repetition, it will not be described here.

[0394] As shown in Figure 10, an embodiment of the present application further provides a communication device 1000, including a processor 1001 and a memory 1002, wherein the memory 1002 stores a program or instruction that can be executed on the processor 1001. For example, when the communication device 1000 is a terminal, the program or instruction, when executed by the processor 1001, implements the various steps of the embodiment of the above-mentioned method for transmitting a listening reference signal (SRS) applied to the terminal, and can achieve the same technical effect. When the communication device 1000 is a network-side device, the program or instruction, when executed by the processor 1001, implements the various steps of the embodiment of the above-mentioned method for transmitting a listening reference signal (SRS) applied to the network-side device, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0395] The present application also provides a terminal including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figures 2 or 3. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to this terminal embodiment and can achieve the same technical effect. Specifically, Figure 11 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0396] The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109 and at least some of the components of the processor 1110.

[0397] Those skilled in the art will appreciate that the terminal 1100 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 1110 via a power management system, thereby enabling the power management system to manage charging, discharging, and power consumption. The terminal structure shown in FIG11 does not limit the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0398] It should be understood that in an embodiment of the present application, the input unit 1104 may include a graphics processing unit (GPU) 11041 and a microphone 11042, and the graphics processor 11041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1106 may include a display panel 11061, and the display panel 11061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 1107 includes a touch panel 11071 and at least one of other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts: a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and an operating stick, which will not be repeated here.

[0399] In the embodiment of the present application, after receiving downlink data from a network-side device, the RF unit 1101 may transmit the data to the processor 1110 for processing. Furthermore, the RF unit 1101 may send uplink data to the network-side device. Typically, the RF unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0400] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 1109 may include a volatile memory or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 1109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0401] Processor 1110 may include one or more processing units. Optionally, processor 1110 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 1110.

[0402] In a first aspect, the radio frequency unit 1101 is used to: obtain N SRS resource sets for uplink transmission configured by a network-side device, where N is greater than or equal to 1;

[0403] The processor 1110 is configured to: determine precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1;

[0404] The radio frequency unit 1101 is further configured to: send the M SRSs according to the precoding.

[0405] Optionally, the processor 1110 determines, according to the reference signals associated with the N SRS resource sets for uplink transmission, precoding of the M SRSs, including:

[0406] When it is determined that the network-side device supports the target transmission scheme, determining precoding of M SRSs according to reference signals associated with the N SRS resource sets for uplink transmission;

[0407] Wherein, in one of the following cases, it is determined that the network side device supports the target transmission scheme:

[0408] The radio frequency unit 1101 receives a preset signaling;

[0409] The radio frequency unit 1101 receives first signaling, where the first signaling is used to activate N SRS resource sets for uplink transmission;

[0410] The SRS resources used for uplink transmission meet the first condition;

[0411] The SRS resource set used for uplink transmission meets the second condition.

[0412] Optionally, the first condition includes that SRS resources used for uplink transmission are on the same frequency domain unit;

[0413] The second condition includes that the SRS resources in the SRS resource set used for uplink transmission are in the same frequency domain unit.

[0414] Optionally, the processor 1110 determines, according to the reference signals associated with the N SRS resource sets for uplink transmission, precoding of the M SRSs, including:

[0415] Determining precoding of the M SRSs according to the first reference signal, where the first reference signal is one of the reference signals associated with the N SRS resource sets for uplink transmission;

[0416] or,

[0417] The precoding of the SRS of the i-th SRS resource set is determined according to the second reference signal associated with the i-th SRS resource set, where i is an integer from 1 to N.

[0418] Optionally, the first reference signal is a reference signal associated with a target SRS resource set;

[0419] The target SRS resource set is one of the following:

[0420] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0421] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0422] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0423] Optionally, the radio frequency unit 1101 is further configured to: obtain parameter information of a codebook subset configured by a network-side device;

[0424] The processor 1110 determines, according to the first reference signal, precoding of the M SRSs, including:

[0425] When the parameter information of the codebook subset indicates one codebook subset, determining, according to the first reference signal, precodings for the M SRSs from corresponding precodings of the one codebook subset;

[0426] The processor 1110 determines, according to the second reference signal associated with the i-th SRS resource set, a precoding of the SRS of the i-th SRS resource set, including:

[0427] When the parameter information of the codebook subset indicates N codebook subsets, the precoding of the SRS of the i-th SRS resource set is determined from the precoding corresponding to the i-th codebook subset in the N codebook subsets according to the second reference signal associated with the i-th SRS resource set.

[0428] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0429] Discrete Fourier transform vector grouping;

[0430] Basis vectors for the reflection transformation.

[0431] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0432] Radio Resource Control (RRC) signaling;

[0433] Media Access Control Element MAC CE;

[0434] Downlink control information DCI.

[0435] Optionally, the radio frequency unit 1101 is further configured to:

[0436] Reporting the terminal's capability information to the network device;

[0437] The parameter information of the codebook subset is determined according to the capability information.

[0438] Optionally, the capability information includes at least one of the following:

[0439] Whether the terminal supports the network-side device configuration codebook subset;

[0440] The number of ports supported by the terminal;

[0441] Antenna layout information of the terminal.

[0442] Optionally, the processor 1110 is further configured to:

[0443] determining, according to the N SRS resource sets for uplink transmission, transmit powers of the M SRSs;

[0444] The radio frequency unit 1101 sends the M SRSs according to the precoding, including:

[0445] The M SRSs are transmitted according to the precoding and the transmission power.

[0446] Optionally, the processor 1110 determines, according to the N SRS resource sets for uplink transmission, the transmit powers of the M SRSs, including:

[0447] Determine a target SRS resource set, and determine the transmit power of the target SRS resource set as the transmit power of the M SRSs;

[0448] The target SRS resource set is one of the following:

[0449] An SRS resource set with the smallest transmit power among the N SRS resource sets used for uplink transmission;

[0450] The SRS resource set with the smallest index among the N SRS resource sets used for uplink transmission;

[0451] The N SRS resource sets used for uplink transmission include the first SRS resource set.

[0452] Optionally, the processor 1110 determines, according to the N SRS resource sets for uplink transmission, the transmit powers of the M SRSs, including:

[0453] Determine a target path loss reference signal, and determine the path losses of the M SRSs according to the target path loss reference signal;

[0454] determining transmit powers of the M SRSs according to path losses of the M SRSs;

[0455] The target path loss reference signal is determined according to the path loss with the smallest loss among the N paths corresponding to the N SRS resource sets for uplink transmission.

[0456] Optionally, the radio frequency unit 1101 is further configured to:

[0457] receiving uplink transmission parameters sent by the network-side device according to the received M SRSs;

[0458] The uplink transmission parameter includes at least one of the first indication information and the second indication information;

[0459] The first indication information is used to indicate precoding for uplink transmission;

[0460] The second indication information is used to indicate the beam for uplink transmission.

[0461] Optionally, the first indication information includes at least one of the following:

[0462] At least one SRS resource indicator SRI;

[0463] At least one coherent phase.

[0464] Optionally, the target transmission scheme is coherent joint reception CJR of N transmitting and receiving points TRP.

[0465] In a second aspect, the radio frequency unit 1101 is used to: obtain parameter information of a codebook subset configured by a network-side device;

[0466] The processor 1110 is configured to: determine SRS precoding according to the parameter information of the codebook subset;

[0467] The radio frequency unit 1101 is further configured to send an SRS based on the precoding.

[0468] Optionally, the processor 1110 determines, according to the parameter information of the codebook subset, precoding of the SRS, including:

[0469] According to the uplink channel information, the precoding of the SRS is determined from the precoding indicated by the parameter information of the codebook subset.

[0470] Optionally, the parameter information of the codebook subset includes at least one of the following:

[0471] Discrete Fourier transform vector grouping;

[0472] Basis vectors for the reflection transformation.

[0473] Optionally, the parameter information of the codebook subset is indicated by at least one of the following:

[0474] Radio Resource Control (RRC) signaling;

[0475] Media Access Control Element MAC CE;

[0476] Downlink control information DCI.

[0477] Optionally, the radio frequency unit 1101 is further configured to: report capability information of the terminal to the network side device;

[0478] The parameter information of the codebook subset is determined according to the capability information.

[0479] Optionally, the capability information includes at least one of the following:

[0480] Whether the terminal supports the network-side device configuration codebook subset;

[0481] The number of ports supported by the terminal;

[0482] Antenna layout information of the terminal.

[0483] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0484] The present application also provides a network-side device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in Figure 3 or Figure 7. This network-side device embodiment corresponds to the aforementioned network-side device method embodiment, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this network-side device embodiment and can achieve the same technical effects.

[0485] Specifically, embodiments of the present application also provide a network-side device. As shown in Figure 12, the network-side device 1200 includes an antenna 121, a radio frequency device 122, a baseband device 123, a processor 124, and a memory 125. Antenna 121 is connected to radio frequency device 122. In the uplink direction, radio frequency device 122 receives information via antenna 121 and sends the received information to baseband device 123 for processing. In the downlink direction, baseband device 123 processes the information to be transmitted and sends it to radio frequency device 122. Radio frequency device 122 processes the received information and then sends it through antenna 121.

[0486] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 123 , which includes a baseband processor.

[0487] The baseband device 123 may include, for example, at least one baseband board, on which multiple chips are arranged, as shown in Figure 12, one of the chips is, for example, a baseband processor, which is connected to the memory 125 through a bus interface to call the program in the memory 125 and execute the network side device operations shown in the above method embodiment.

[0488] The network side device may further include a network interface 126 , which is, for example, a Common Public Radio Interface (CPRI).

[0489] Specifically, the network side device 1200 of the embodiment of the present application also includes: instructions or programs stored in the memory 125 and executable on the processor 124. The processor 124 calls the instructions or programs in the memory 125 to execute the methods executed by the modules shown in FIG5 or FIG9 and achieve the same technical effect. To avoid repetition, they will not be elaborated here.

[0490] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned monitoring reference signal SRS transmission method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0491] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0492] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned monitoring reference signal SRS transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0493] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0494] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement the various processes of the above-mentioned monitoring reference signal SRS transmission method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0495] An embodiment of the present application also provides a monitoring reference signal (SRS) transmission system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the monitoring reference signal (SRS) transmission method applied to the terminal as above, and the network side device can be used to execute the steps of the monitoring reference signal (SRS) transmission method applied to the network side device as above.

[0496] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0497] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for enabling a terminal or network-side device to execute the methods described in each embodiment of the present application.

[0498] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A method for transmitting sounding reference signal (SRS), wherein, The method includes: The terminal obtains N SRS resource sets configured by the network - side device for uplink transmission, where N is greater than or equal to 1; The terminal determines precoding for M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1; The terminal sends the M SRSs according to the precoding.

2. The method according to claim 1, wherein, The terminal determines precoding for M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission, including: When the terminal determines that the network - side device supports the target transmission scheme, the terminal determines precoding for M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission; Wherein, in one of the following cases, the terminal determines that the network - side device supports the target transmission scheme: The terminal receives a preset signaling; The terminal receives a first signaling, and the first signaling is used to activate N SRS resource sets for uplink transmission; The SRS resources for uplink transmission satisfy a first condition; The SRS resource sets for uplink transmission satisfy a second condition; Wherein, the first condition includes that the SRS resources for uplink transmission are on the same frequency - domain unit; The second condition includes that the SRS resources in the SRS resource sets for uplink transmission are on the same frequency - domain unit.

3. The method according to claim 1 or 2, wherein, The terminal determines precoding for the M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission, including: The terminal determines precoding for the M SRSs according to a first reference signal, and the first reference signal is one of the reference signals associated with the N SRS resource sets for uplink transmission; Or, The terminal determines precoding for the SRSs of the i - th SRS resource set according to a second reference signal associated with the i - th SRS resource set, where i is an integer from 1 to N.

4. The method according to claim 3, wherein The first reference signal is the reference signal associated with the target SRS resource set; Wherein, the target SRS resource set is one of the following: Among the N SRS resource sets for uplink transmission, the SRS resource set with the minimum transmission power; Among the N SRS resource sets for uplink transmission, the SRS resource set with the minimum index; Among the N SRS resource sets for uplink transmission, the first SRS resource set.

5. The method according to claim 3 or 4, wherein The method further includes: The terminal obtains parameter information of a codebook subset configured by the network - side device; The terminal determines precoding for the M SRSs according to the first reference signal, including: When the parameter information of the codebook subset indicates a codebook subset, the terminal determines precoding for the M SRSs from the corresponding precodings of the one codebook subset according to the first reference signal; The terminal determines precoding for the SRSs of the i - th SRS resource set according to a second reference signal associated with the i - th SRS resource set, including: When the parameter information of the codebook subset indicates N codebook subsets, the terminal determines the precoding of the sounding reference signal (SRS) for the i-th SRS resource set from the precodings corresponding to the i-th codebook subset among the N codebook subsets according to the second reference signal associated with the i-th SRS resource set.

6. The method according to claim 5, wherein The parameter information of the codebook subset includes at least one of the following: Discrete Fourier transform vector groups; Basis vectors of reflection transformation.

7. The method according to claim 5 or 6, wherein Before the terminal obtains the parameter information of the codebook subset configured by the network device, the method further includes: The terminal reports the capability information of the terminal to the network device; Among them, the parameter information of the codebook subset is determined according to the capability information.

8. The method according to claim 7, wherein The capability information includes at least one of the following: Whether the terminal supports the network device to configure the codebook subset; The number of ports supported by the terminal; The antenna layout information of the terminal.

9. The method according to any one of claims 1 to 8, wherein Before the terminal sends the M SRSs according to the precoding, the method further includes: The terminal determines the transmission power of the M SRSs according to the N SRS resource sets for uplink transmission; The terminal sending the M SRSs according to the precoding includes: The terminal sends the M SRSs according to the precoding and the transmission power.

10. The method according to claim 9, wherein, The terminal determining the transmission power of the M SRSs according to the N SRS resource sets for uplink transmission includes: The terminal determines a target SRS resource set and determines the transmission power of the target SRS resource set as the transmission power of the M SRSs; Among them, the target SRS resource set is one of the following: Among the N SRS resource sets for uplink transmission, the SRS resource set with the minimum transmission power; Among the N SRS resource sets for uplink transmission, the SRS resource set with the smallest index; Among the N SRS resource sets for uplink transmission, the first SRS resource set.

11. The method according to claim 9, wherein The terminal determining the transmission power of the M SRSs according to the N SRS resource sets for uplink transmission includes: The terminal determines a target path loss reference signal and determines the path loss of the M SRSs according to the target path loss reference signal; The terminal determines the transmission power of the M SRSs according to the path loss of the M SRSs; Among them, the target path loss reference signal is determined according to the path loss with the minimum loss among the N paths corresponding to the N SRS resource sets for uplink transmission.

12. The method according to any one of claims 1 to 11, wherein, The method further includes: The terminal receives the uplink transmission parameters sent by the network device according to the received M SRSs; Among them, the uplink transmission parameters include at least one of the first indication information and the second indication information; The first indication information is used to indicate the precoding of uplink transmission; The second indication information is used to indicate the beam of uplink transmission.

13. The method according to claim 12, wherein, The first indication information includes at least one of the following: At least one SRS resource indication (SRI); At least one coherent phase.

14. The method according to any one of claims 2 to 13, wherein The target transmission scheme is the coherent joint reception (CJR) of N transmit receive points (TRPs).

15. A method for monitoring the transmission of sounding reference signals (SRS), wherein, The method includes: The network-side device configures N SRS resource sets for the terminal for uplink transmission, where N is greater than or equal to 1; The network-side device receives M SRSs sent by the terminal according to precoding, where the precoding is determined according to the reference signals associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

16. The method according to claim 15, wherein, The method further includes: The network-side device configures parameter information of a codebook subset for the terminal, and the parameter information of the codebook subset indicates at least one codebook subset.

17. The method according to claim 16, wherein The parameter information of the codebook subset includes at least one of the following: Discrete Fourier transform vector grouping; Basis vectors of reflection transformation.

18. The method according to any one of claims 15 to 17, wherein Before the network-side device configures the parameter information of the codebook subset for the terminal, the method further includes: The network-side device receives the capability information of the terminal reported by the terminal; Wherein, the parameter information of the codebook subset is determined according to the capability information.

19. The method according to claim 18, wherein, The capability information includes at least one of the following: Whether the terminal supports the network-side device to configure a codebook subset; The number of ports supported by the terminal; The antenna layout information of the terminal.

20. A method for transmitting a sounding reference signal (SRS), wherein, The method includes: The terminal obtains the parameter information of the codebook subset configured by the network-side device; The terminal determines the precoding of the SRS according to the parameter information of the codebook subset; The terminal sends the SRS based on the precoding.

21. The method according to claim 20, wherein, The terminal determines the precoding of the SRS according to the parameter information of the codebook subset, including: The terminal determines the precoding of the SRS from the precodings indicated by the parameter information of the codebook subset according to the uplink channel information.

22. A method for listening to Sounding Reference Signal (SRS) transmission, wherein, The method includes: The network-side device sends the parameter information of the codebook subset to the terminal; The network-side device receives the SRS sent by the terminal according to precoding, where the precoding is determined according to the parameter information of the codebook subset.

23. A sounding reference signal (SRS) transmission device for monitoring, wherein, Applied to the terminal, the apparatus includes: A first acquisition module, configured to acquire N SRS resource sets for uplink transmission configured by the network-side device, where N is greater than or equal to 1; A first determination module, configured to determine the precoding of M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission, where M is greater than or equal to 1; A first sending module, configured to send the M SRSs according to the precoding.

24. The apparatus according to claim 23, wherein, The first determination module is specifically configured to: When it is determined that the network-side device supports the target transmission scheme, determine the precoding of M SRSs according to the reference signals associated with the N SRS resource sets for uplink transmission; Wherein, in one of the following cases, it is determined that the network-side device supports the target transmission scheme: Receiving a preset signaling; Receiving a first signaling, where the first signaling is used to activate N SRS resource sets for uplink transmission; The SRS resources for uplink transmission satisfy a first condition; The SRS resource sets for uplink transmission satisfy a second condition; Wherein, the first condition includes that the SRS resources for uplink transmission are on the same frequency domain unit; The second condition includes that the SRS resources in the SRS resource sets for uplink transmission are on the same frequency domain unit.

25. The device according to claim 23 or 24, wherein, The first determination module is specifically used for: Determine the precoding of the M SRSs according to a first reference signal, where the first reference signal is one of the reference signals associated with the N SRS resource sets for uplink transmission; Or, Determine the precoding of the SRSs of the i-th SRS resource set according to a second reference signal associated with the i-th SRS resource set, where i is an integer from 1 to N.

26. The apparatus according to claim 25, wherein, The apparatus further includes: A third obtaining module, configured to obtain parameter information of a codebook subset configured by a network-side device; When the first determining module determines the precoding of the M SRSs according to the first reference signal, specifically: In the case where the parameter information of the codebook subset indicates one codebook subset, determine the precoding of the M SRSs from the corresponding precodings of the one codebook subset according to the first reference signal; When the first determining module determines the precoding of the SRSs of the i-th SRS resource set according to the second reference signal associated with the i-th SRS resource set, specifically: In the case where the parameter information of the codebook subset indicates N codebook subsets, determine the precoding of the SRSs of the i-th SRS resource set from the corresponding precodings of the i-th codebook subset among the N codebook subsets according to the second reference signal associated with the i-th SRS resource set.

27. A sounding reference signal (SRS) transmission monitoring device, wherein, Applied to a network-side device, the apparatus includes: A first configuration module, configured to configure N SRS resource sets for uplink transmission for a terminal, where N is greater than or equal to 1; A first receiving module, configured to receive M SRSs sent by the terminal according to precoding, where the precoding is determined according to the reference signals associated with the N SRS resource sets for uplink transmission, and M is greater than or equal to 1.

28. The apparatus according to claim 27, wherein, The apparatus further includes: A second configuration module, configured to configure parameter information of a codebook subset for the terminal, where the parameter information of the codebook subset indicates at least one codebook subset.

29. A sounding reference signal (SRS) transmission monitoring device, wherein, Applied to a terminal, the apparatus includes: A second obtaining module, configured to obtain parameter information of a codebook subset configured by a network-side device; A second determining module, configured to determine the precoding of the SRS according to the parameter information of the codebook subset; A second sending module, configured to send the SRS based on the precoding.

30. A sounding reference signal (SRS) transmission monitoring device, wherein, Applied to a network-side device, the apparatus includes: A third sending module, configured to send parameter information of a codebook subset to a terminal; A second receiving module, configured to receive the SRS sent by the terminal according to precoding, where the precoding is determined according to the parameter information of the codebook subset.

31. A communication device, wherein, Comprising a processor and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, it implements the steps of the method for listening to the transmission of the sounding reference signal SRS as described in any one of claims 1 to 14, or implements the steps of the method for listening to the transmission of the sounding reference signal SRS as described in any one of claims 15 to 19, or implements the steps of the method for listening to the transmission of the sounding reference signal SRS as described in any one of claims 20 to 21, or implements the steps of the method for listening to the transmission of the sounding reference signal SRS as described in claim 22.

32. A readable storage medium, wherein, The program or instructions are stored on the readable storage medium, and when the program or instructions are executed by the processor, the steps of the method for listening to the sounding reference signal (SRS) transmission according to any one of claims 1 to 14 are implemented, or the steps of the method for listening to the sounding reference signal (SRS) transmission according to any one of claims 15 to 19 are implemented, or the steps of the method for listening to the sounding reference signal (SRS) transmission according to any one of claims 20 to 21 are implemented, or the steps of the method for listening to the sounding reference signal (SRS) transmission according to claim 22 are implemented.

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