Method of communication and communication device

Description

1 / 92 METHOD OF COMMUNICATION AND COMMUNICATION DEVICE

[0001] This application claims priority to Chinese patent application No. 202310411107.4, filed with the National Intellectual Property Administration of China on April 7, 2023, and entitled COMMUNICATION METHOD AND COMMUNICATION APPARATUS, which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The modalities of this application relate to the field of communication and, in particular, to a method of communication and a communication apparatus. BACKGROUND

[0003] Currently, a sounding reference signal (SRS) is configured based on an uplink bandwidth part (UL BWP), meaning an SRS can be transmitted in an uplink subband. If some frequency features in the UL BWP are configured as a downlink subband or guard band, for example, in a full duplex subband slot / symbol, if an SRS frequency feature overlaps the downlink subband or guard band, the SRS transmission will be unclear and abnormal. SUMMARY

[0004] The modalities of this application provide a method of communication and a communication device to improve SRS transmission performance.

[0005] According to a first aspect, a communication method is provided. The method is applied to a network device and the method includes: sending configuration information to a terminal device, where the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features includes one of selection Petition 870250105076, dated 11 / 17 / 2025, p. 8 / 107 2 / 92 antenna, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a full-duplex sub-band SBFD type time unit, a time-domain feature corresponding to at least one second SRS feature is a non-SBFD type time unit, M is an integer greater than or equal to 1, and both X and Y are integers greater than or equal to 0; and receive an SRS from the terminal device based on configuration information.

[0006] In the solution provided in this embodiment of this application, the M sets of SRS resources indicated by the network device configuration information for the terminal device include the first X sets of SRS resources and the second Y sets of SRS resources. Furthermore, the time-domain resource corresponding to at least one first SRS resource included in the first X sets of SRS resources is the SBFD type time unit, and the time-domain resource corresponding to at least one second SRS resource included in the second Y sets of SRS resources is the non-SBFD type time unit, so that the terminal device can send the SRS based on the configuration information.For example, for at least one first SRS resource included in the first X sets of SRS resources, the terminal device can send the SRS to the network device in an uplink subband in the SBFD type time unit; and for at least one second SRS resource included in the second Y sets of SRS resources, the terminal device can send the SRS to the... Petition 870250105076, dated 11 / 17 / 2025, page 9 / 107 3 / 92 network device in the non-SBFD type time unit. Similarly, the network device can receive the SRS based on configuration information. This can improve SRS transmission performance.

[0007] With reference to the first aspect, in some possible implementations, X and Y are equal.

[0008] In this embodiment of this request, X and Y are equal. To be more specific, for a specific use (e.g., antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning): The quantities of the first SRS feature sets and second SRS feature sets included in the M SRS feature sets indicated by the network device-defined configuration information for the terminal device are the same. For example, X and Y are 1, or X and Y are 2. This configuration method can simplify the processes of configuring, indicating, and using SRS features and help reduce system processing complexity.

[0009] With reference to the first aspect, in some possible implementations, if X is greater than 1, each of the first X sets of SRS features includes the same number of SRS features; or if Y is greater than 1, each of the second Y sets of SRS features includes the same number of SRS features; or if M is greater than 1, each of the M sets of SRS features includes the same number of SRS features.

[0010] In the solution provided in this embodiment of this request, when X is greater than 1, each of the first X sets of SRS features includes the same number of SRS features; or when Y is greater than 1, each of the second Y sets of SRS features includes the same number of SRS features; or the first set of SRS features and the second set of SRS features are not distinguished, and each of the M sets of SRS features Petition 870250105076, dated 11 / 17 / 2025, p. 10 / 107 4 / 92 includes the same number of SRS resources. This configuration method can simplify the processes of setting up, indicating, and using SRS resources and help reduce system processing complexity.

[0011] With reference to the first aspect, in some possible implementations, the configuration information includes indication information, and the first indication information indicates whether a time domain resource corresponding to an SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit.

[0012] In the solution provided in this embodiment of this application, the network device configuration information for the terminal device may include the first indication information, and the first indication information may indicate whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit, so that the terminal device can send the SRS based on the first indication information. This may improve SRS transmission performance.

[0013] With reference to the first aspect, in some possible implementations, the method further includes: sending an uplink scheduling grant to the end device, where the uplink scheduling grant includes an SRS resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes the SBFD type and the non-SBFD type.

[0014] Specifically, if the time unit type of the uplink transmission scheduled by the uplink scheduling grant is of type SBFD, the type of Petition 870250105076, dated 11 / 17 / 2025, page 11 / 107 5 / 92 The time unit of the SRS resource indicated by the SRS resource indicator field will also be of type SBFD, in other words, the SRS resource indicated by the SRS resource indicator field is an SRS resource in at least one first SRS resource; or if the time unit type of the uplink transmission scheduled by the uplink scheduling grant is of type non-SBFD, the time unit type of the SRS resource indicated by the SRS resource indicator field will also be of type non-SBFD, in other words, the SRS resource indicated by the SRS resource indicator field is an SRS resource in at least one second SRS resource.

[0015] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature indicator field, and the time unit type of the SRS feature indicated by the SRS feature indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant, so that after receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can improve the uplink transmission performance and improve the SRS measurement efficiency.

[0016] With reference to the first aspect, in some possible implementations, the method further includes: sending an uplink scheduling grant to the terminal device, where the uplink scheduling grant includes an SRS feature set indicator field, an SRS feature set type indicated by the SRS feature set indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the SRS feature set type includes a type of the first Petition 870250105076, dated 11 / 17 / 2025, p. 12 / 107 6 / 92 SRS feature set and a type of the second SRS feature set.

[0017] Specifically, if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type SBFD, the type of the SRS resource set indicated by the SRS resource set indicator field will also be type SBFD, in other words, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets; or if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type non-SBFD, the type of the SRS resource set indicated by the SRS resource set indicator field will also be type non-SBFD, in other words, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the second Y SRS resource sets.

[0018] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature set indicator field, and the SRS feature set type indicated by the SRS feature set indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant, so that after receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS feature set indicated by the SRS feature set indicator field. This can improve the transmission performance of the uplink transmission.

[0019] With reference to the first aspect, in some possible implementations, the method also includes: sending an upward link scheduling grant to the Petition 870250105076, dated 11 / 17 / 2025, page 13 / 107 7 / 92 terminal device, where the uplink scheduling grant includes an SRS feature set indicator field, an SRS feature set type indicated by the SRS feature set indicator field is determined based on a first indicator field included in the uplink scheduling grant, and the first indicator field indicates that the SRS feature set indicated by the SRS feature set indicator field is an SRS feature set in the first X SRS feature sets or an SRS feature set in the second Y SRS feature sets.

[0020] Specifically, if the first indicator field included in the uplink scheduling grant indicates that the SRS resource set type indicated by the SRS resource set indicator field is the SBFD type, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets; or if the first indicator field included in the uplink scheduling grant indicates that the SRS resource set type indicated by the SRS resource set indicator field is the non-SBFD type, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the second Y SRS resource sets.

[0021] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature set indicator field, and the type of SRS feature set indicated by the SRS feature set indicator field is determined based on the first indicator field included in the uplink scheduling grant, so that, after receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission in the feature set. Petition 870250105076, dated 11 / 17 / 2025, page 14 / 107 8 / 92 SRS resources indicated by the SRS resource set indicator field. This can improve the transmission performance of the uplink transmission.

[0022] With reference to the first aspect, in some possible implementations, the method further includes: sending an uplink scheduling grant to the end device, where the uplink scheduling grant includes an SRS feature set indicator field, the SRS feature set indicator field indicates an SRS feature set type and an SRS feature set included in the indicated SRS feature set type, and the SRS feature set type includes a type from the first SRS feature set and a type from the second SRS feature set.

[0023] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature set indicator field, and the SRS feature set indicator field indicates the SRS feature set type and the SRS feature set included in the indicated SRS feature set type, so that after receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS feature set type indicated by the SRS feature set indicator field and on the SRS feature set included in the SRS feature set type. This can improve the transmission performance of the uplink transmission.

[0024] With reference to the first aspect, in some possible implementations, the length of the SRS feature set indicator field is determined based on the larger value between X and Y.

[0025] In the solution provided in this modality of this request, the Petition 870250105076, dated 11 / 17 / 2025, page 15 / 107 9 / 92 The length of the SRS feature set indicator field is determined based on the larger value between X and Y. This can further improve SRS transmission performance.

[0026] With reference to the first aspect, in some possible implementations, for an SRS resource in at least one first SRS resource and / or in at least one second SRS resource, a time unit type of a reference signal associated with the SRS resource is the same as a time unit type of the SRS resource, and the time unit type includes the SBFD type and the non-SBFD type.

[0027] In the solution provided in this embodiment of this application, for the SRS resource in at least one first SRS resource and / or in at least one second SRS resource, the time unit type of the reference signal associated with the SRS resource is the same as the time unit type of the SRS resource, i.e., an SRS transmitted in the same time domain resource type is spatially associated with another reference signal (e.g., a CSI-RS, an SSB, another SRS, or a DL-PRS). This helps to enhance and improve the performance of the SRS transmission and also improves the performance of the transmission of another uplink / downlink channel or signal, such as a channel based on the SRS transmission.

[0028] With reference to the first aspect, in some possible implementations, the reference signal includes at least one of the following: a CSIRS channel status information reference signal, a physical broadcast channel block / SSB synchronization signal, an SRS other than the SRS, and a DL PRS downlink positioning reference signal.

[0029] According to a second aspect, a communication method is provided. The method is applied to a terminal device, and the method includes: receiving configuration information from a network device, where the configuration information Petition 870250105076, dated 11 / 17 / 2025, page 16 / 107 10 / 92 indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features includes antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a full-duplex sub-band SBFD type time unit, a time-domain feature corresponding to at least one second SRS feature is a non-SBFD type time unit, M is an integer greater than or equal to 1, and X and Y are integers greater than or equal to 0;and send an SRS to the network device based on the configuration information.

[0030] In the solution provided in this embodiment of this application, the M sets of SRS resources indicated by the network device configuration information and received by the terminal device include the first X sets of SRS resources and the second Y sets of SRS resources. Furthermore, the time-domain resource corresponding to at least one first SRS resource included in the first X sets of SRS resources is the SBFD time unit, and the time-domain resource corresponding to at least one second SRS resource included in the second Y sets of SRS resources is the non-SBFD time unit. Therefore, the terminal device can send the SRS based on the configuration information. For example, for at least one first SRS resource included in the first X sets of SRS resources, the terminal device can send the SRS to the network device in an uplink subband in the SBFD time unit; and for at least Petition 870250105076, dated 11 / 17 / 2025, page 17 / 107 11 / 92 a second SRS feature included in the Y second sets of SRS features, the terminal device can send the SRS to the network device in the non-SBFD type time unit. This can improve SRS transmission performance.

[0031] With reference to the second aspect, in some possible implementations, X and Y are equal.

[0032] In this embodiment of this application, X and Y are equal. To be more specific, for a specific use (e.g., antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning): The quantities of the first SRS feature sets and second SRS feature sets included in the M SRS feature sets indicated by the network device configuration information and received by the terminal device are the same. For example, X and Y are 1, or X and Y are 2. This configuration method can simplify the processes of configuring, indicating, and using SRS features and help reduce system processing complexity.

[0033] With reference to the second aspect, in some possible implementations, if X is greater than 1, each of the first X sets of SRS features includes the same quantity of SRS features; or if Y is greater than 1, each of the second Y sets of SRS features includes the same quantity of SRS features; or if M is greater than 1, each of the M sets of SRS features includes the same quantity of SRS features.

[0034] In the solution provided in this embodiment of this request, when X is greater than 1, each of the first X sets of SRS features includes the same number of SRS features; or when Y is greater than 1, each of the second Y sets of SRS features includes the same number of SRS features; or the first set of SRS features and the second set of SRS features are not distinguished, and each of the M sets of SRS features Petition 870250105076, dated 11 / 17 / 2025, p. 18 / 107 12 / 92 includes the same amount of SRS resources. This configuration method can simplify the processes of setting up, indicating, and using SRS resources and help reduce system processing complexity.

[0035] With reference to the second aspect, in some possible implementations, the configuration information includes first indication information, and the first indication information indicates whether a time domain resource corresponding to an SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit.

[0036] In the solution provided in this embodiment of this application, the network device configuration information received by the terminal device may include the first indication information, and the first indication information may indicate whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit, so that the terminal device can send the SRS based on the first indication information. This may improve SRS transmission performance.

[0037] With reference to the second aspect, in some possible implementations, the method further includes: receiving an uplink scheduling grant from the network device, where the uplink scheduling grant includes an SRS resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes the SBFD type and the non-SBFD type.

[0038] In the solution provided in this modality of this request, the granting of uplink scaling of the device Petition 870250105076, dated 11 / 17 / 2025, page 19 / 107 Network 13 / 92 data received by the terminal device includes the SRS feature indicator field, and the time unit type of the SRS feature indicated by the SRS feature indicator field is the same as the time unit type of the uplink transmission scaled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can improve the uplink transmission performance and improve SRS measurement efficiency.

[0039] With reference to the second aspect, in some possible implementations, the method further includes: receiving an uplink scheduling grant from the network device, where the uplink scheduling grant includes an SRS resource set indicator field, an SRS resource set type indicated by the SRS resource set indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the SRS resource set type includes a first SRS resource set type and a second SRS resource set type.

[0040] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device and received by the terminal device includes the SRS resource set indicator field, and the SRS resource set type indicated by the SRS resource set indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS resource set indicated by the SRS resource set indicator field. This can improve the Petition 870250105076, dated 11 / 17 / 2025, page 20 / 107 14 / 92 uplink transmission performance.

[0041] With reference to the second aspect, in some possible implementations, the method further includes: receiving an uplink scheduling grant from the network device, where the uplink scheduling grant includes an SRS resource set indicator field, an SRS resource set type indicated by the SRS resource set indicator field is determined based on a first indicator field included in the uplink scheduling grant, and the first indicator field indicates that the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets or an SRS resource set in the second Y SRS resource sets.

[0042] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device and received by the terminal device includes the SRS resource set indicator field, and the type of SRS resource set indicated by the SRS resource set indicator field is determined based on the first indicator field included in the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS resource set indicated by the SRS resource set indicator field. This can improve the transmission performance of the uplink transmission.

[0043] With reference to the second aspect, in some possible implementations, the method also includes: receiving an uplink scheduling grant from the network device, where the uplink scheduling grant includes an SRS resource set indicator field, the SRS resource set indicator field indicates a resource set type. Petition 870250105076, dated 11 / 17 / 2025, p. 21 / 107 15 / 92 of SRS resources and an SRS resource set included in the indicated type of SRS resource set, and the SRS resource set type includes one type from the first SRS resource set and one type from the second SRS resource set.

[0044] In the solution provided in this embodiment of this application, the uplink scheduling grant from the terminal device and received by the terminal device includes the SRS feature set indicator field, and the SRS feature set indicator field indicates the SRS feature set type and the SRS feature set included in the indicated SRS feature set type. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS feature set type indicated by the SRS feature set indicator field and on the SRS feature set included in the SRS feature set type. This can improve the transmission performance of the uplink transmission.

[0045] With reference to the second aspect, in some possible implementations, the length of the SRS feature set indicator field is determined based on the larger value between X and Y.

[0046] In the solution provided in this embodiment of this application, the length of the SRS feature set indicator field is determined based on the larger value between X and Y. This can further improve SRS transmission performance.

[0047] With reference to the second aspect, in some possible implementations, for an SRS resource in at least one first SRS resource and / or in at least one second SRS resource, a time unit type of a reference signal associated with the SRS resource is the same as a time unit type of the SRS resource, and the time unit type includes the SBFD type and the non-SBFD type. Petition 870250105076, dated 11 / 17 / 2025, page 22 / 107 16 / 92

[0048] In the solution provided in this embodiment of this application, for the SRS resource in at least one first SRS resource and / or in at least one second SRS resource, the time unit type of the reference signal associated with the SRS resource is the same as the time unit type of the SRS resource, i.e., an SRS transmitted in the same time domain resource type is spatially associated with another reference signal (e.g., a CSI-RS, an SSB, another SRS, or a DL-PRS). This helps to enhance and improve the performance of the SRS transmission and also improves the performance of the transmission of another uplink / downlink channel or signal, such as a channel based on the SRS transmission.

[0049] With reference to the second aspect, in some possible implementations, the reference signal includes at least one of the following: a CSIRS channel status information reference signal, a physical broadcast channel block / SSB synchronization signal, an SRS other than the SRS, and a DL PRS downlink positioning reference signal.

[0050] According to a third aspect, a communication method is provided. The method is applied to a network device, and the method includes: sending an uplink scheduling grant to a terminal device, where the uplink scheduling grant includes an SRS probe reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as a time unit type of uplink transmission scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and receiving the uplink transmission from the terminal device based on the SRS resource indicator field. Petition 870250105076, dated 11 / 17 / 2025, page 23 / 107 17 / 92

[0051] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature indicator field, and the time unit type of the SRS feature indicated by the SRS feature indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant, so that after receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can ensure that the link quality of the uplink transmission is similar to that of the associated SRS, improve the transmission performance of the uplink transmission, and improve the efficiency of SRS measurement.

[0052] According to a fourth aspect, a communication method is provided. The method is applied to a terminal device, and the method includes: receiving an uplink scheduling grant from a network device, where the uplink scheduling grant includes an SRS probe reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and sending the uplink transmission to the network device based on the SRS resource indicator field.

[0053] In the solution provided in this embodiment of this application, the uplink scaling grant from the network device and received by the terminal device includes the SRS resource indicator field, and the time unit type of the SRS resource indicated by the SRS resource indicator field is the same as Petition 870250105076, dated 11 / 17 / 2025, page 24 / 107 18 / 92 The time unit type of the uplink transmission is scaled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can ensure that the link quality of the uplink transmission is similar to that of the associated SRS, improve the transmission performance of the uplink transmission, and improve the efficiency of SRS measurement.

[0054] According to a fifth aspect, a communication method is provided. The method is applied to a network device, and the method includes: sending a second indication information to a terminal device, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS resource is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex subband SBFD type and a non-SBFD type; and receiving, from the terminal device based on the second indication information, an SRS corresponding to the SRS resource.

[0055] In the solution provided in this embodiment of this application, the time unit type indicated by the second indication information from the network device to the terminal device, which is the reference signal associated with the SRS resource, is the same as the time unit type of the SRS resource. That is, spatial association is performed between an SRS transmitted in a time domain resource of the same type and a reference signal associated with the SRS resource, and spatial association can be performed on reference signals with equal or similar link quality. This helps to enhance and improve the performance of SRS transmission and, in addition, can also improve the transmission performance of a channel or signal based on SRS transmission. Petition 870250105076, dated 11 / 17 / 2025, page 25 / 107 19 / 92

[0056] With reference to the fifth aspect, in some possible implementations, the reference signal includes at least one of the following: a CSI-RS channel state information reference signal, a physical transmission channel / synchronization signal block (SSB), an SRS other than the SRS, and a downlink positioning reference signal (DL PRS).

[0057] According to a sixth aspect, a communication method is provided. The method is applied to a terminal device, and the method includes: receiving second indication information from the terminal, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS probe reference signal resource is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and sending, to a network device based on the second indication information, an SRS corresponding to the SRS resource.

[0058] In the solution provided in this embodiment of this application, the time unit type indicated by the second indication information from the network device and received by the terminal device, which is from the reference signal associated with the SRS resource, is the same as the time unit type of the SRS resource. That is, spatial association is performed between an SRS transmitted in a time domain resource of the same type and a reference signal associated with the SRS resource, and spatial association can be performed on reference signals with equal or similar link quality. This helps to enhance and improve the performance of SRS transmission and, in addition, can also improve the transmission performance of a channel or signal based on SRS transmission.

[0059] With reference to the sixth aspect, in some possible implementations, the reference signal includes at least one of the following: an information reference signal of Petition 870250105076, dated 11 / 17 / 2025, page 26 / 107 20 / 92 CSI-RS channel state, a physical SSB synchronization / broadcast channel signal block, an SRS different from the SRS, and a DL PRS downlink positioning reference signal.

[0060] According to a seventh aspect, a communication apparatus is provided. For beneficial purposes, refer to the descriptions in the first aspect. The details are not described again in this document. The communication apparatus has the function of implementing the behavior in the method mode in the first aspect. The function may be implemented by hardware or may be implemented by hardware running corresponding software. The hardware includes one or more modules corresponding to the previous function. In a possible design, the communication apparatus includes a transceiver module, configured to: send configuration information to a terminal device, where the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features includes one of antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission,Beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a full-duplex sub-band SBFD time unit, a time-domain feature corresponding to at least one second SRS feature is a non-SBFD time unit, M is an integer greater than or equal to 1, and both X and Y are integers greater than or equal to 0; and receive an SRS from the terminal device based on configuration information. These modules can perform corresponding functions in the example, Petition 870250105076, dated 11 / 17 / 2025, page 27 / 107 21 / 92 of the method in the first aspect. For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0061] According to an eighth aspect, a communication apparatus is provided. For beneficial purposes, refer to the descriptions in the second aspect. The details are not described again in this document. The communication apparatus has the function of implementing the behavior in the mode of the method in the second aspect. The function may be implemented by hardware or may be implemented by hardware running corresponding software. The hardware includes one or more modules corresponding to the previous function. In a possible design, the communication apparatus includes a transceiver module, configured to: receive configuration information from a network device, where the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features includes one of antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission,Beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a time unit of the SBFD sub-band full-duplex type, a time-domain feature corresponding to at least one second SRS feature is a time unit of the non-SBFD type, M is an integer greater than or equal to 1, and both X and Y are integers greater than or equal to 0; and send an SRS to the network device based on the configuration information. These modules can perform corresponding functions in the example of the method in the second aspect. For, Petition 870250105076, dated 11 / 17 / 2025, page 28 / 107 22 / 92 For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0062] According to a ninth aspect, a communication device is provided. For beneficial purposes, see the descriptions in the third aspect. The details are not described again in this document. The communication device has the function of implementing the behavior in the instance of the method in the third aspect. The function can be implemented by hardware or it can be implemented by hardware running corresponding software. Hardware or software includes one or more modules corresponding to the previous function.In a possible design, the communication apparatus includes a receiving module, configured to: send an uplink scheduling grant to a terminal device, where the uplink scheduling grant includes an SRS polling reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as a time unit type of uplink transmission scaled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and receive the uplink transmission from the terminal device based on the SRS resource indicator field. These modules can perform corresponding functions in the method example in the third aspect. For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0063] According to a tenth aspect, a communication apparatus is provided. For beneficial purposes, see the descriptions in the fourth aspect. The details are not described again in this document. The communication apparatus has the function of implementing the behavior in the instance of the method in the fourth aspect. The function can be implemented by hardware or it can be Petition 870250105076, dated 11 / 17 / 2025, p. 29 / 107 23 / 92 implemented by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the previous function. In a possible design, the communication apparatus includes a receiving module, configured to: receive an uplink scheduling grant from a network device, where the uplink scheduling grant includes an SRS polling reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and send the uplink transmission to the network device based on the SRS resource indicator field.These modules can perform corresponding functions as in the method example in the fourth aspect. For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0064] According to an eleventh aspect, a communication device is provided. For beneficial purposes, refer to the descriptions in the fifth aspect. The details are not described again in this document. The communication device has the function of implementing the behavior in the method example in the fifth aspect. The function can be implemented by hardware or it can be implemented by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the previous function. In a possible design, the communication device includes a receiving module, configured to: send second indication information to a terminal device, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with a reference signal resource of Petition 870250105076, dated 11 / 17 / 2025, page 30 / 107 24 / 92 SRS polling is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and receive, from the terminal device based on the second indication information, an SRS corresponding to the SRS resource. These modules can perform corresponding functions in the method example in the fifth aspect. For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0065] According to a twelfth aspect, a communication device is provided. For beneficial purposes, see the descriptions in the sixth aspect. The details are not described again in this document. The communication device has the function of implementing the behavior in the method example in the sixth aspect. The function can be implemented by hardware or it can be implemented by hardware running corresponding software. The hardware or software includes one or more modules corresponding to the previous function.In a possible design, the communication apparatus includes a receiving module, configured to: receive second indication information from a terminal, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS polling reference signal resource is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and send, to a network device based on the second indication information, an SRS corresponding to the SRS resource. These modules can perform corresponding functions in the method example in the sixth aspect. For details, see the detailed descriptions in the method example. The details are not described again in this document.

[0066] According to a thirteenth aspect, a computer program product is provided. The program product of Petition 870250105076, dated 11 / 17 / 2025, page 31 / 107 25 / 92 computer includes computer program code and, when the computer program code is run, the method performed by the terminal device in the previous aspects is performed.

[0067] According to a fourteenth aspect, a computer program product is provided. The computer program product includes computer program code and, when the computer program code is run, the method performed by the network device in the previous aspects is performed.

[0068] According to a fifteenth aspect, this application provides a chip system. The chip system includes a processor, configured to implement a terminal device function in the method described in the preceding aspects. In a possible design, the chip system further includes a memory, configured to store program instructions and / or data. The chip system may include a chip, or it may include a chip and another discrete component.

[0069] According to a sixteenth aspect, this application provides a chip system. The chip system includes a processor, configured to implement a network device function in the method described in the preceding aspects. In a possible design, the chip system further includes a memory, configured to store program instructions and / or data. The chip system may include a chip, or it may include a chip and another discrete component.

[0070] According to a seventeenth aspect, this application provides a computer-readable storage medium. The computer-readable storage medium stores a computer program. When the computer program is run, the method performed by the terminal device in the preceding aspects is implemented.

[0071] According to an eighteenth aspect, this application provides a computer-readable storage medium. The computer-readable storage medium stores a program of Petition 870250105076, dated 11 / 17 / 2025, page 32 / 107 26 / 92 computer. When the computer program is run, the method performed by the network device in the previous aspects is implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] FIG. 1 is a diagram of an architecture of a mobile communication system to which a modality of this request is applied.

[0073] FIG. 2 is a distribution diagram of DL and UL in a TDD system according to this request.

[0074] FIG. 3 is a diagram of the distribution of DL and UL in SBFD according to this application.

[0075] FIG. 4 is a diagram of the distribution of DL and UL in SFFD according to this application.

[0076] FIG. 5 is an SRS transmission diagram in an SBFD slot and a non-SBFD slot according to this application.

[0077] FIG. 6 is a diagram of a communication method according to a modality of this request. [007 8] FIG. 7 is a diagram of a time unit type of an SRS resource and a time unit type of a reference signal associated with the SRS resource according to an embodiment of this request.

[0079] FIG. 8 is a transmission diagram of an SRS and a PUSCH in an SBFD slot and a non-SBFD slot according to this application.

[0080] FIG. 9 is a diagram of another method of communication according to a modality of this request.

[0081] FIG. 10 is a diagram of a time unit type of an SRS resource and a time unit type of a PSUCH according to a modality of this request.

[0082] FIG. 11 is another diagram of a time unit type of an SRS resource and a time unit type of a PSUCH according to a modality of this request.

[0083] FIG. 12 is a diagram of yet another method of Petition 870250105076, dated 11 / 17 / 2025, p. 33 / 107 27 / 92 communication in accordance with one of the terms of this request.

[0084] FIG. 13 is a diagram of a communication device according to an embodiment of this application; and

[0085] FIG. 14 is a diagram of another communication device according to an embodiment of this application. DESCRIPTION OF THE MODALITIES

[0086] In the descriptive report, claims and attached drawings of this application, the terms first, second, third and the like are intended to distinguish between different objects, but do not limit a specific order.

[0087] Furthermore, in some embodiments of this application, the word example or for example is used to represent an example, an illustration, or a description. Any embodiment or design scheme described as an example or for example in the embodiments of this application should not be explained as being more preferred or having more advantages than another embodiment or design scheme. Precisely, the use of the word example, for example, or similar is intended to present a related concept in a specific way.

[0088] FIG. 1 is a diagram of an architecture of a mobile communication system to which an embodiment of this application is applied. As shown in FIG. 1, the mobile communication system includes a core network device 110, a radio access network device 120, and at least one terminal device (for example, a terminal device 130 and a terminal device 140 shown in FIG. 1). The terminal device is wirelessly connected to the radio access network device, and the radio access network device is wirelessly or wired connected to the core network device. The core network device and the radio access network device may be independent and distinct physical devices, or functions of the core network device and logical functions of the radio access network device. Petition 870250105076, dated 11 / 17 / 2025, page 34 / 107 28 / 92 radio devices can be integrated into a single physical device, or some functions of the core network device and some functions of the radio access network device are integrated into one physical device. The terminal device may be in a fixed position or may be mobile. FIG. 1 is only a diagram. The communication system may also include other network devices, for example, it may also include a wireless relay device and a wireless backhaul device, which are not shown in FIG. 1. The number of core network devices, radio access network devices, and terminal devices included in the mobile communication system is not limited in this embodiment of this application.

[0089] A radio access network device is an access device used by the terminal to access the communication system wirelessly. The radio access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next-generation base station in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, an access node in a WiFi or similar system; or it can be a module or unit that completes some functions of the base station, for example, it can be a central unit (CU) or it can be a distributed unit (DU).The CU in this document completes the functions of a radio resource control protocol and a packet data convergence protocol (PDCP) of a base station, and may also complete the function of a service data adaptation protocol (SDAP). The DU completes the functions of a radio link control layer and a layer. Petition 870250105076, dated 11 / 17 / 2025, page 35 / 107 29 / 92 of medium access control (MAC) of a base station, and may even complete some or all of the functions of a physical layer. For specific descriptions of the preceding protocol layers, see the technical specifications related to a 3rd generation partnership project (3GPP). The radio access network device may be a macro base station, a micro base station, or an indoor base station, or it may be a relay node, a donor node, or similar. A specific technology and a specific device form used by the radio access network device are not limited to the embodiments of this application. For ease of description, a network device is used as an abbreviation for radio access network device, and base station is used as an example of a radio access network device.

[0090] The terminal device may also be called a terminal, user equipment (UE), mobile station, mobile terminal, or similar. The terminal device is an entity that is on the user side and is configured to receive or transmit a signal, and is configured to send an uplink signal to the network device or receive a downlink signal from the network device. The terminal device can be widely used in various scenarios, for example, device-to-device (D2D) communication, vehicle-to-everything (V2X) communication, machine-type communication (MTC), the Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, and smart city.The terminal device can be a cell phone, a tablet, a computer with wireless transceiver function, or a device. Petition 870250105076, dated 11 / 17 / 2025, page 36 / 107 30 / 92 wearable, a vehicle, an aircraft, a ship, a robot, a robotic arm, a smart home device, a smart speaker or similar, and a sensor, such as a train detector or a gas station sensor. A specific technology and a specific device form factor used by the terminal device are not limited in embodiments of this application.

[0091] The network device and the terminal device may be in fixed positions or may be mobile. The network device and the terminal device may be deployed on land, including indoors or outdoors, or in portable or vehicle-mounted form; they may be deployed in water; or they may be deployed on an airplane, a balloon, and an artificial satellite.

[0092] This application can be applied to a 5G new radio (NR) wireless communication system. The system is deployed in a mid-high frequency band and implements a high data rate and low delay using a large bandwidth. In a time division duplex (TDD) system, a downlink (DL) typically occupies a prime time resource, resulting in coverage imbalance between the DL and an uplink (UL), as shown in FIG. 2. Compared to a frequency division duplexing (FDD) system, the TDD system has weaker uplink coverage and higher uplink delay. To address uplink coverage and delay issues in the TDD system, an SBFD solution and a single frequency full duplex (SFFD) solution are proposed in R18.In the SBFD solution, a component carrier (CC) includes a plurality of sub-bands, and the transmission directions of different sub-bands can be different. FIG. 3 is a diagram of the SBFD solution. It can be learned from the figure that an intermediate sub-band is an uplink sub-band, and a sub-band. Petition 870250105076, dated 11 / 17 / 2025, page 37 / 107 31 / 92 upper and a lower sub-band are downlink sub-bands. In the SBFD solution, the sending and receiving of signals can be performed simultaneously on a symbol. FIG. 4 is a diagram of the SFFD solution. It can be learned from the figure that the simultaneous receiving and sending of a symbol can be implemented on an entire CC. Therefore, in the SBFD solution, different frequency domain resources are used for the uplink and the downlink. In the SFFD solution, the same frequency domain resource is used for the uplink and the downlink. Currently, most companies support a full-duplex sub-band solution on the network device side and half-duplex on the terminal device side in the first phase.In a TDD system, duplex transmission means that the terminal device can only perform either receiving or sending, but cannot simultaneously receive and send within a single symbol. This solution increases the uplink transmission capabilities available to the terminal device. This can effectively improve UL coverage and reduce UL delay.

[0093] The NR system includes an SRS. The SRS is primarily used for uplink channel measurement. Based on the SRS measurement result, the system can perform time-frequency resource scheduling, link adaptation, massive multiple-input multiple-output (MIMO), and similar tasks. In the NR system, the SRS can also be used for beam management, including beam training, beam switching, and similar tasks. Furthermore, for the TDD system, channel state information from a downlink channel and similar tasks can be obtained based on the reciprocity between the uplink and downlink channels using the SRS. Additionally, the SRS can be used for positioning, and the network device can estimate... Petition 870250105076, dated 11 / 17 / 2025, page 38 / 107 32 / 92 the location of the terminal device based on the terminal device's SRS.

[0094] Currently, an SRS configuration is set up based on a UL BWP, meaning an SRS can be transmitted in an uplink subband. If some frequency features in the UL BWP are configured as a downlink subband or guard band, for example, in an SBFD slot / symbol, if an SRS frequency feature overlaps the downlink subband or guard band, the SRS transmission will be unclear and abnormal. For example, as shown in FIG. 5, for an SRS transmitted in an SBFD slot, some SRS frequency features fall outside an uplink subband, i.e., they fall into a downlink subband. Consequently, the SRS transmission is unclear.

[0095] The embodiments of this application provide a method of communication and a communication apparatus to improve SRS transmission performance.

[0096] This application can be applied to a wireless communication system, including, but not limited to, full-duplex sub-band on the network device side and half-duplex on the terminal device side. As shown in FIG. 1, there is terminal device 130 and terminal device 140 within the coverage area of ​​network device 120. Terminal device 130 can send an uplink signal, and terminal device 140 receives a downlink signal; or terminal device 140 sends an uplink signal, and terminal device 130 receives a downlink signal.

[0097] In this application, the terminal device and the network device can be connected via an air interface or via another interface. This is not limited to.

[0098] FIG. 6 shows a communication method 600 according Petition 870250105076, dated 11 / 17 / 2025, page 39 / 107 33 / 92 with an embodiment of this application. Method 600 can be performed by a network device and a terminal device, for example, radio access network device 120 and terminal device 130 (or terminal device 140) in FIG. 1. Method 600 can include steps S610 to S640. Steps S610 and S640 can be performed by the network device, and steps S620 and S630 can be performed by the terminal device.

[0099] S610: Send configuration information to the terminal device, where the configuration information indicates M sets of SRS features, a use of the M sets of SRS features includes antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a SBFD type time unit, a time-domain feature corresponding to at least one second SRS feature is a non-SBFD type time unit, M is an integer greater than or equal to 1,X and Y are integers greater than or equal to 0.

[00100] The use of the M SRS feature sets in this embodiment of this application includes one of the following options: antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management, and positioning. In other words, the use of the M SRS feature sets is unique. For example, the M SRS feature sets can be used for antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission. Petition 870250105076, dated 11 / 17 / 2025, p. 40 / 107 34 / 92 in codebooks or similar.

[00101] It should be noted that, in this application mode, the M SRS feature sets used for one of the following options: antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management, and positioning are not limited. The M SRS feature sets can also be used for other purposes. This is not limited, for example, the M SRS feature sets can be used later for cross-interference measurement.

[00102] Optionally, in some possible implementations, the time domain resource corresponding to at least one first SRS resource may include a time unit of type SBFD and a time unit of type non-SBFD, and the time domain resource corresponding to at least one second SRS resource may include a time unit of type non-SBFD and a time unit of type SBFD. This is not limited.

[00103] In the specific implementation, the network device can send configuration information to the terminal device using signaling, for example, a system information block (SIB), radio resource control (RRC) signaling, a media access control element (MAC CE), and downlink control information (DCI).

[00104] In this embodiment of this application, the SBFD type time unit may include an SBFD slot and an SBFD symbol, and the non-SBFD type time unit may include a non-SBFD slot and a non-SBFD symbol. The non-SBFD slot may include at least one uplink slot, one downlink slot and one flexible slot, and the non-SBFD symbol may include at least one uplink symbol, one downlink symbol and one flexible symbol. Petition 870250105076, dated 11 / 17 / 2025, page 41 / 107 35 / 92

[00105] For an SBFD configuration, there are two possible configuration methods, depending on whether a slot includes an SBFD symbol and a non-SBFD symbol. The SBFD symbol can be considered as a symbol configured with SBFD, and the non-SBFD symbol can be considered as a symbol not configured with SBFD.

[00106] (1) The SBFD configuration is at the slot level. To be more specific, all symbols included in a slot can be configured as SBFD symbols or can be configured as non-SBFD symbols.

[00107] (2) The SBFD configuration is at the symbol level. To be more specific, some symbols included in a slot may be configured as SBFD symbols, and other symbols may be configured as non-SBFD symbols.

[00108] The SBFD configuration is not specifically limited in this modality of this application.

[00109] Furthermore, as shown in FIG. 3, for a carrier, a frequency resource configuration may include at least one DL sub-band and one UL sub-band. To reduce cross-interference caused between downlink transmission in a DL sub-band and uplink transmission in a UL sub-band, a guard band may be defined between the DL sub-band and the UL sub-band. There are no specific limitations in this application as to whether a sub-band needs to be explicitly defined and whether a signal can be transmitted in the sub-band. In other words, in this embodiment of this application, there is no limitation as to whether the guard band exists between the DL sub-band and the UL sub-band and whether uplink or downlink transmission can be performed in the guard band if the guard band exists. Furthermore, the possibility of the DL sub-band overlapping the UL sub-band is not specifically limited in this application.

[00110] S620: Receive configuration information.

[00111] S630: Send an SRS to the network device with Petition 870250105076, dated 11 / 17 / 2025, page 42 / 107 36 / 92 based on configuration information.

[00112] In this mode of this request, after receiving the configuration information, the terminal device can send the SRS to the network device based on the configuration information. Specifically, the M sets of SRS resources indicated by the configuration information include the first X sets of SRS resources and the second Y sets of SRS resources, the time domain resource corresponding to at least one first SRS resource included in the first X sets of SRS resources is the SBFD type time unit, and the time domain resource corresponding to at least one second SRS resource included in the second Y sets of SRS resources is the non-SBFD type time unit.Therefore, when the terminal device sends the SRS, if an SRS frequency resource includes an uplink sub-band and a downlink sub-band, or if an SRS frequency resource overlaps a downlink sub-band and an uplink sub-band, the terminal device may send the SRS to the network device in at least one first SRS resource included in the first X sets of SRS resources, that is, send the SRS to the network device in the SBFD type time unit.If an SRS frequency resource includes an uplink sub-band or a downlink sub-band, or if an SRS frequency resource is configured as a downlink sub-band or an uplink sub-band, the terminal device may send the SRS to the network device in at least one second SRS resource included in the Y-second SRS resource sets, that is, send the SRS to the network device in the non-SBFD type time unit.

[00113] S640: Receive the SRS from the terminal device based on the configuration information.

[00114] The network device can receive, based on the configuration information, the SRS from the terminal device. Petition 870250105076, dated 11 / 17 / 2025, page 43 / 107 37 / 92 Specifically, if the terminal device sends the SRS in the SBFD time unit, the network device can receive the SRS in the SBFD time unit. If the terminal device sends the SRS in the non-SBFD time unit, the network device can receive the SRS in the non-SBFD time unit.

[00115] In some possible implementations, the fact that the network device receives the SRS from the terminal device may not be based on configuration information. In other words, regardless of the time unit type in which the terminal device sends the SRS, the network device only needs to receive the SRS.

[00116] For example, if the terminal device sends the SRS in the SBFD time unit, the network device may receive the SRS in the SBFD time unit or it may receive the SRS in the non-SBFD time unit. If the terminal device sends the SRS in the non-SBFD time unit, the network device may receive the SRS in the non-SBFD time unit or it may receive the SRS in the SBFD time unit. This is not limited.

[00117] In the solution provided in this embodiment of this application, the M sets of SRS resources indicated by the network device configuration information for the terminal device include the first X sets of SRS resources and the second Y sets of SRS resources. Furthermore, the time-domain resource corresponding to at least one first SRS resource included in the first X sets of SRS resources is the SBFD type time unit, and the time-domain resource corresponding to at least one second SRS resource included in the second Y sets of SRS resources is the non-SBFD type time unit. Therefore, the terminal device can send the SRS based on the configuration information. For example, for at least one first SRS resource included in the first X Petition 870250105076, dated 11 / 17 / 2025, page 44 / 107 For 38 / 92 sets of SRS features, the terminal device can send the SRS to the network device in an uplink subband in the SBFD type time unit; and for at least one second SRS feature included in the Y second sets of SRS features, the terminal device can send the SRS to the network device in the non-SBFD type time unit. This can improve SRS transmission performance.

[00118] Optionally, in some modes, X and Y are equal.

[00119] In this embodiment of this application, X and Y are equal. To be more specific, for a specific use (e.g., antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning): The quantities of the first SRS feature sets and second SRS feature sets included in the M SRS feature sets indicated by the network device-defined configuration information for the terminal device are the same. For example, X and Y are 1, or X and Y are 2. This configuration method can simplify the processes of configuring, indicating, and using SRS features and help reduce system processing complexity.

[00120] In some possible implementations, X and Y may be different. For a specific use (e.g., antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning): The quantities of the first SRS feature sets and second SRS feature sets included in the M SRS feature sets indicated by the configuration information defined by the network device for the terminal device are different. For example, X is 1 and Y is 2, or X is 2 and Y is 1. In this configuration form, the configuration of the SRS features can be more Petition 870250105076, dated 11 / 17 / 2025, page 45 / 107 39 / 92 flexible.

[00121] It can be understood that if a value of X or Y is 0, it can be considered that the M sets of SRS resources indicated by the configuration information configured by the network device for the terminal device include one type of resource set. For example, if X=0 and Y=0, this indicates that the M sets of SRS resources indicated by the configuration information configured by the network device for the terminal device include the second Y sets of SRS resources. If X=0 and Y=0, this indicates that the M sets of SRS resources indicated by the configuration information defined by the network device for the terminal device include the first X sets of SRS resources.

[00122] Optionally, in some embodiments, if X is greater than 1, each of the first X sets of SRS features includes the same quantity of SRS features; or if Y is greater than 1, each of the second Y sets of SRS features includes the same quantity of SRS features; or if M is greater than 1, each of the M sets of SRS features will include the same quantity of SRS features.

[00123] In this modality of this request, when X is greater than 1, each of the first X sets of SRS features includes the same quantity of SRS features. For example, assume that X=2 and that there are two first sets of SRS features: a first set of SRS features 1 and a first set of SRS features 2. In this case, the quantity of first SRS features included in the first set of SRS features 1 is the same as the quantity of first SRS features included in the first set of SRS features 2. For example, the first set of SRS features 1 includes 10 first SRS features, and the first set of SRS features 2 also includes 10 first SRS features.

[00124] In this type of request, when Y is greater than Petition 870250105076, dated 11 / 17 / 2025, p. 46 / 107 40 / 92 1. Each of the Y second sets of SRS features includes the same number of SRS features. For example, suppose Y=2 and there are two second sets of SRS features: a second set of SRS features 1 and a second set of SRS features 2. In this case, the number of second SRS features included in the second set of SRS features 1 is the same as the number of second SRS features included in the second set of SRS features 2. For example, the second set of SRS features 1 includes eight second SRS features, and the second set of SRS features 2 also includes eight second SRS features.

[00125] In this embodiment of this request, the first set of SRS resources and the second set of SRS resources may not be distinguished. When M is greater than 1, each of the M sets of SRS resources includes the same quantity of SRS resources.

[00126] For example, assume that X=Y=1, and the number of first SRS features included in the first set of SRS features is the same as the number of second SRS features included in the second set of SRS features. For example, the first set of SRS features includes eight first SRS features, and the second set of SRS features also includes eight second SRS features.

[00127] For another example, assume that X=1 and Y=2, and the number of first SRS features included in the first set of SRS features is the same as the number of second SRS features included in the two second sets of SRS features. For example, the first set of SRS features includes eight first SRS features, and each of the two second sets of SRS features includes eight second SRS features.

[00128] In the solution provided in this embodiment of this application, when X is greater than 1, each of the first X sets of SRS features includes the same quantity of SRS features; or when Y is greater than 1, each of the second Y sets of features Petition 870250105076, dated 11 / 17 / 2025, page 47 / 107 41 / 92 SRS includes the same quantity of SRS resources; or the first set of SRS resources and the second set of SRS resources are not distinguished, and each of the M sets of SRS resources includes the same quantity of SRS resources. This configuration method can simplify the processes of configuring, indicating, and using SRS resources and help reduce system processing complexity.

[00129] Optionally, in some possible implementations, if X is greater than 1, the quantities of SRS resources included in at least two of the first sets of SRS resources in the first X sets of SRS resources will be different; or if Y is greater than 1, the quantities of SRS resources included in at least two of the second sets of SRS resources in the second Y sets of SRS resources are different; or if M is greater than 1, the quantities of SRS resources included in at least two of the M sets of SRS resources will be different.

[00130] In this embodiment of this request, when X is greater than 1, the quantities of SRS resources included in at least two first sets of SRS resources in the first X sets of SRS resources are different. For example, suppose X=3 and there are three first sets of SRS resources: a first set of SRS resources 1, a first set of SRS resources 2, and a first set of SRS resources 3. In this case, the quantities of SRS resources included in at least two first sets of SRS resources in the first three sets of SRS resources are different. For example, a quantity of first SRS resources included in the first set of SRS resources 1 is different from a quantity of first SRS resources included in the first set of SRS resources 2. For example, the first set of SRS resources 1 includes 10 first SRS resources. The first set of SRS resources 2 includes eight first SRS resources.Other similar cases are not specifically described here. Petition 870250105076, dated 11 / 17 / 2025, page 48 / 107 42 / 92 request.

[00131] In this embodiment of this request, when Y is greater than 1, the quantities of SRS resources included in at least two second sets of SRS resources in the Y second sets of SRS resources are different. For example, suppose Y=3 and there are three second sets of SRS resources: a second set of SRS resources 1, a second set of SRS resources 2, and a second set of SRS resources 3. In this case, the quantities of SRS resources included in at least two second sets of SRS resources in the three second sets of SRS resources are different. For example, a quantity of seconds of SRS resources included in the second set of SRS resources 1 is different from a quantity of seconds of SRS resources included in the second set of SRS resources 2. For example, the second set of SRS resources 1 includes eight seconds of SRS resources. The second set of SRS resources 2 includes 10 seconds of SRS resources.Other similar cases are not specifically described in this application.

[00132] In this embodiment of this request, the first set of SRS resources and the second set of SRS resources may not be distinguishable, and the quantities of SRS resources included in at least two sets of SRS resources in the M sets of SRS resources are different.

[00133] For example, assume that X=Y=2, that is, the M sets of SRS features include two first sets of SRS features and two second sets of SRS features, and the quantities of SRS features included in at least two sets of SRS features in the four sets of SRS features are different. Assume that the first two sets of SRS features are: a first set of SRS features 1 and a first set of SRS features 2, and the second two sets of SRS features are: a second set of SRS features 1 and a second set of SRS features 2. In this case, the first Petition 870250105076, dated 11 / 17 / 2025, page 49 / 107 43 / 92 SRS feature set 1 includes eight first SRS features, and the second SRS feature set 1 includes 10 second SRS features; or the first SRS feature set 1 includes eight first SRS features, and the first SRS feature set 2 includes 10 first SRS features; or the second SRS feature set 1 includes 10 second SRS features, and the second SRS feature set 2 includes eight second SRS features. Other similar cases are not specifically described in this application.

[00134] For another example, assume that X=1 and Y=2, that is, the M sets of SRS resources include a first set of SRS resources and two second sets of SRS resources, and the quantities of SRS resources included in at least two sets of SRS resources in the three sets of SRS resources are different. Assume that the two second sets of SRS resources are: a second set of SRS resources 1 and a second set of SRS resources 2. In this case, the first set of SRS resources includes eight first SRS resources, and the second set of SRS resources 1 includes 10 second SRS resources; or the second set of SRS resources 1 includes 10 second SRS resources, and the second set of SRS resources 2 includes eight second SRS resources. Other similar cases are not specifically described in this application.

[00135] In the solution provided in this embodiment of this application, when X is greater than 1, the quantities of SRS resources included in at least two first sets of SRS resources in the first X sets of SRS resources are different; or when Y is greater than 1, the quantities of SRS resources included in at least two second sets of SRS resources in the second Y sets of SRS resources are different; or the first set of SRS resources and the second set of SRS resources are not distinguished, and the quantities of SRS resources included in at least two sets of SRS resources in the M sets of SRS resources are different. Petition 870250105076, dated 11 / 17 / 2025, pp. 50 / 107 44 / 92 SRS are different. This configuration method allows for more flexibility in setting up SRS features.

[00136] Optionally, in some embodiments, the configuration information includes first indication information, and the first indication information indicates whether a time domain resource corresponding to an SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit.

[00137] In this modality of this request, for the SRS resource included in the SRS resource set, the first indication information may indicate whether the time domain resource corresponding to the SRS resource is the SBFD type time unit or the non-SBFD type time unit.

[00138] For example, suppose the SRS feature set includes 10 SRS features: an SRS feature 1, an SRS feature 2, an SRS feature 3, an SRS feature 4, an SRS feature 5, an SRS feature 6, an SRS feature 7, an SRS feature 8, an SRS feature 9, and an SRS feature 10.

[00139] The initial indication information may directly indicate whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit, or it may indirectly indicate whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit. This is not limited.

[00140] (1) The first indication information directly indicates whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit.

[00141] The initial indication information may directly indicate that the time domain resources corresponding to some or all of the resources in the SRS resource set are Petition 870250105076, dated 11 / 17 / 2025, page 51 / 107 45 / 92 time units of type SBFD. For example, the first indication information indicates that the time domain resources corresponding to resource SRS 1, resource SRS 2, and resource SRS 3 are time units of type SBFD; or the first indication information indicates that the time domain resources corresponding to all 10 SRS resources are all time units of type SBFD. If the first indication information indicates that the time domain resources corresponding to resource SRS 1, resource SRS 2, and resource SRS 3 are time units of type SBFD, then the time domain resources corresponding to the other SRS resources (including resource SRS 4, resource SRS 5, resource SRS 6, resource SRS 7, resource SRS 8, resource SRS 9, and resource SRS 10) can be considered to be non-SBFD time units.

[00142] The first indication information may directly indicate that the time domain resources corresponding to some or all of the resources in the SRS resource set are non-SBFD type time units. For example, the first indication information indicates that the time domain resources corresponding to SRS resource 1, SRS resource 2, SRS resource 3, and SRS resource 4 are non-SBFD type time units; or the first indication information indicates that the time domain resources corresponding to all 10 SRS resources are all non-SBFD type time units. If the first indication information indicates that the time domain resources corresponding to SRS resource 1, SRS resource 2, SRS resource 3, and SRS resource 4 are non-SBFD type time units.In this case, the time-domain resources corresponding to the other SRS resources (including SRS resource 5, SRS resource 6, SRS resource 7, SRS resource 8, SRS resource 9, and SRS resource 10) can be considered to be SBFD-type time units.

[00143] Specifically, the first information of Petition 870250105076, dated 11 / 17 / 2025, page 52 / 107 46 / 92 indications can indicate, using identifiers, that the time-domain resources corresponding to some or all of the resources in the SRS resource set are SBFD type time units. An identifier of 0 is assumed to indicate that the time-domain resource corresponding to the SRS resource is the SBFD type time unit, and an identifier of 1 indicates that the time-domain resource corresponding to the SRS resource is the non-SBFD type time unit. In this case, the first indication information indicates that the identifiers of three resources, namely SRS resource 1, SRS resource 2, and SRS resource 3, are 0, or indicates that the identifiers of all seven resources, namely resource 4, SRS resource 5, SRS resource 6, SRS resource 7, SRS resource 8, SRS resource 9, and SRS resource 10, are all 1.

[00144] If the first indication information indicates that the identifiers of the three resources, namely resource SRS 1, resource SRS 2 and resource SRS 3, are 0, it can be considered that the time domain resources corresponding to resource SRS 1, resource SRS 2 and resource SRS 3 are time units of type SBFD, and the time domain resources corresponding to the other SRS resources (including resource SRS 4, resource SRS 5, resource SRS 6, resource SRS 7, resource SRS 8, resource SRS 9 and resource SRS 10) may be time units of type non-SBFD by default.

[00145] If the initial information indicates that the identifiers of SRS resource 4, SRS resource 5, SRS resource 6, SRS resource 7, SRS resource 8, SRS resource 9, and SRS resource 10 are all 1, then the time domain resources corresponding to seven resources, namely SRS resource 4, SRS resource 5, SRS resource 6, SRS resource 7, SRS resource 8, SRS resource 9, and SRS resource 10, can be considered to be non-SBFD type time units, and the time domain resources corresponding to the other SRS resources (including SRS resource 1, SRS resource 2, and SRS resource 3) can be Petition 870250105076, dated 11 / 17 / 2025, page 53 / 107 47 / 92 time units of the SBFD type by default.

[00146] Certainly, the first indication information may alternatively indicate that the identifiers of the 10 SRS resources, namely, SRS resource 1, SRS resource 2, SRS resource 3, SRS resource 4, SRS resource 5, SRS resource 6, SRS resource 7, SRS resource 8, SRS resource 9, and SRS resource 10, are all 0 or all 1. If the first indication information indicates that the identifiers of the 10 SRS resources are all 0, the time domain resources corresponding to the 10 SRS resources can be considered to be all SBFD type time units; or if the first indication information indicates that the identifiers of the 10 SRS resources are all 1, the time domain resources corresponding to the 10 SRS resources can be considered to be all non-SBFD type time units.

[00147] (2) The first indication information indirectly indicates whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit.

[00148] For example, the existence of the first indication information indicates that the SRS resource included in the SRS resource set is either the SBFD type time unit or the non-SBFD type time unit.

[00149] Specifically, if the configuration information includes the first indication information, the time domain resource corresponding to the SRS resource in the SRS resource set can be considered to be the SBFD type time unit; or if the configuration information does not include the first indication information, the time domain resource corresponding to the SRS resource in the SRS resource set can be considered to be the non-SBFD type time unit.

[00150] Alternatively, if the configuration information includes the first indication information, the time domain resource corresponding to can be considered. Petition 870250105076, dated 11 / 17 / 2025, page 54 / 107 48 / 92 The SRS resource in the SRS resource set is the non-SBFD type time unit; or if the configuration information does not include the first indication information, the time domain resource corresponding to the SRS resource in the SRS resource set can be considered to be the SBFD type time unit.

[00151] In the solution provided in this embodiment of this application, the network device configuration information for the terminal device may include the first indication information, and the first indication information may indicate whether the time domain resource corresponding to the SRS resource included in the SRS resource set is the SBFD type time unit or the non-SBFD type time unit, so that the terminal device can send the SRS based on the first indication information. This may improve SRS transmission performance.

[00152] To facilitate understanding of the solutions to this request, we briefly describe below an SRS resource and a set of SRS resources in NR.

[00153] 1. An SRS resource • A sequence with a low peak-to-average power ratio (PAPR) is used, i.e., a ZC (zadoff-Chu) sequence. • One, two, or four SRS ports can be configured. • A slot can cover 1, 2, 4, 8, 10, 12, and 14 consecutive orthogonal frequency division multiplexing (OFDM) symbols. • All SRS ports appear in each OFDM symbol of a resource. • The SRS resource can be periodic, aperiodic, or semi-persistent in the time domain. • A repeat factor, for example, 1, 2, or 4, can be configured for an SRS resource, and the subcarriers used Petition 870250105076, dated 11 / 17 / 2025, page 55 / 107 49 / 92 during the retransmission are the same. • In the frequency domain, the SRS resource is transmitted in comb mode. That is, the transmission of each SRS port is mapped to each of two, four, or eight subcarriers of an OFDM symbol, which is called a transmission comb. Currently, NR supports comb-2, comb-4, and comb-8. • Frequency hopping transmission is supported, including intra-slot frequency hopping transmission and inter-slot frequency hopping transmission. Frequency hopping transmission means that different frequency resources are used for transmission at different times.

[00154] 2. A set of SRS resources • A maximum of 64 SRS resources can be included. • A plurality of included SRS resources are of the same time domain type, that is, they are all periodic, aperiodic, or semi-persistent. • The plurality of included SRS resources may be in different slots or in the same slot (adjacent or non-adjacent). • Only one usage, for example, beam management, codebook, non-codebook, and antenna switching, can be configured. The meanings of the different usages are shown in Table 1. Table 1 Use of the SRS feature set configuration parameter. Use: Beam Management. Used to assist the UE in determining an appropriate uplink transmit beam or to assist the gNB in ​​determining a receive beam. Petition 870250105076, dated 11 / 17 / 2025, pp. 56 / 107 50 / 92 Use of the SRS feature set configuration parameter. Codebook Usage: Used for codebook-based UL transmission, for example, used by a gNB to determine a precoder for a physical uplink shared channel (PUSCH) or a physical uplink control channel (PUCCH). Non-codebook Usage: Used for non-codebook-based UL transmission.For example, the UE sends an SRS via a preliminary precoder determined based on a downlink signal, such as a channel statement information reference signal (CSI-RS), and then determines, based on an SRS resource indicator (SRI) field indicated by a base station, information such as a precoder and a classification used for a PUSCH or a PUCCH. Antenna switching. Channel state information from a downlink is obtained through channel reciprocity-based measurement.

[00155] As described above, an SRS resource set can be configured with only one use, and a UE has a plurality of uses in most cases. Therefore, a plurality of SRS resource sets need to be configured for the UE, and for a specific use, one or more related SRS resource sets can be configured. It should be noted that when an SRS resource is configured in an SRS resource set for a specific use, the SRS resource Petition 870250105076, dated 11 / 17 / 2025, pp. 57 / 107 51 / 92 is no longer configured for an SRS feature set for other uses.

[00156] Next, we describe how the SRS resource pool configuration parameter is configured for allocation to different uses.

[00157] (1) SRS used for codebook-based UL transmission (e.g., a PUSCH or a PUCCH)

[00158] When a usage parameter of an SRS feature set is defined as codebook, an SRS feature included in or associated with the SRS feature set is used to measure an uplink MIMO channel, to determine an uplink pre-encoder and a predefined codebook classification, and there are other transmission parameters used in uplink adaptation.

[00159] A set of SRS resources used for codebook-based UL transmission may include one or two SRS resources. If the set of SRS resources includes two SRS resources, both SRS resources may be used in a scenario where the UE has two antenna panels. The UE may send one of the SRS resources through each antenna panel. Therefore, the gNB can determine the best antenna panel by measuring the SRS. In this way, the gNB can use a 1-bit SRS field in a PUSCH scheduling grant to indicate one of the UE's antenna panels, and the UE can send the PUSCH in the same way (antenna implementation) that it sends the SRS resource indicated by the SRI field, and can use the most recent transmission of the SRS resource indicated by the SRI field before the PUSCH scheduling grant. The PUSCH scheduling grant may be ported into downlink control information (DCI).

[00160] It should be noted that an SRS feature set that supports codebook-based UL transmission includes two SRS features, which is a UE capability. If the UE offers Petition 870250105076, dated 11 / 17 / 2025, pp. 58 / 107 52 / 92 support for including only one SRS resource in the SRS resource set, the UE may use the SRS resource by default. Correspondingly, the SRI field in the DCI is 0 bits, or the DCI does not include the SRI field. Additionally, the PUSCH scheduling grant also includes a 1-bit SRS resource indicator field (second SRS resource indicator), which is mainly used in a scenario where a plurality of PUSCHs are scheduled. The second SRS resource indicator field indicates another SRS resource associated with the PUSCH.

[00161] One or two SRS feature sets with the usage parameter set as codebook can be configured for UE. When only one SRS feature set used for the codebook is configured, gNB and UE use that SRS feature set by default. When two SRS feature sets used for the codebook are configured, the SRS feature set indicator field in DCI can indicate which SRS feature sets are used. Specifically, the values ​​and meanings of the indicator field are shown in Table 2. Table 2 Bit field mapped to index. SRS Resource Set Indicator field. 0 The SRS resource indicator field and the precoding information and layer number field are associated with the first SRS resource set. The second SRS resource indicator field and the second precoding information field are reserved. 1 The SRS resource indicator field and the Petition 870250105076, dated 11 / 17 / 2025, pp. 59 / 107 53 / 92 Bit field mapped to index. The SRS Resource Set Indicator field, precoding information, and the layer number field are associated with the second SRS resource set. The second SRS resource indicator field and the second precoding and layer number information fields are reserved. 2 The SRS resource indicator field and the precoding information and layer number field are associated with the first SRS resource set. The second SRS resource indicator field and the second precoding and layer number information fields are associated with the second SRS resource set. 3 The SRS resource indicator field and the precoding information and layer number field are associated with the first SRS resource set.The second SRS feature indicator field and the second precoding and layer number information field are associated with the second set of SRS features.

[00162] (2) SRS used for UL transmission not based on codebook (e.g., a PUSCH or a PUCCH)

[00163] In NR, non-PUSCH transmission is introduced Petition 870250105076, dated 11 / 17 / 2025, pp. 60 / 107 54 / 92 in codebook, which is not supported in LTE. Non-codebook-based PUSCH transmission is a PUSCH transmission based on reciprocity between uplink and downlink channels. A specific method is as follows: An SRS resource is configured to be associated with a downlink reference signal, for example, a CSI-RS or a physical synchronization signal / PBCH block (SSB), and the UE selects an appropriate pre-encoder based on channel information obtained by measuring the downlink reference signal, and then the UE can send the SRS resource through the selected pre-encoder based on reciprocity between the downlink and uplink channels.Furthermore, the UE ensures that an SRS port for the SRS feature and a physical uplink shared channel demodulation reference signal (PUSCH DMRS) port use the same pre-coder. The gNB then meters the channel for the SRS feature and selects which one can be used for PUSCH transmission.

[00164] An SRS resource set used for non-codebook-based UL transmission may include one, two, or four SRS resources. The specific number of SRS resources included depends primarily on the UE's capabilities, and each SRS resource has only one SRS port. Each SRS resource represents a PUSCH layer. Therefore, if the UE only supports two-layer PUSCH transmission, two SRS resources will be configured or associated in an SRS resource set.

[00165] Similar to code-based PUSCH transmission, gNB can select, using an SRI indicator field in a PUSCH scheduling grant (e.g., DCI), some or all of these SRS features for PUSCH transmission, and UE transmits a PUSCH layer on each indicated SRS feature. For example, if PUSCH transmission of rank 1 is scheduled, only one Petition 870250105076, dated 11 / 17 / 2025, pp. 61 / 107 55 / 92 of the various SRS resources will be selected for the SRI indicator field. Additionally, the UE needs to send the PUSCH layer in the same way it sends the SRS resource indicated by the SRI indicator field and uses the most recent transmission of the SRS resource indicated by the SRI indicator field before granting PUSCH escalation.

[00166] One or two sets of SRS features with the usage parameter set to codebook can be configured for UE. When only one set of SRS features used for non-codebook is configured, gNB and UE use that SRS feature set by default. When two sets of SRS features used for non-codebook are configured, the SRS feature set indicator field in the PUSCH scheduling grant indicates which SRS feature sets are used. A specific method is the same as the previous method for determining the SRS feature set used for the codebook. Details are not described again.

[00167] (3) SRS used for beam management

[00168] When a usage parameter of an SRS resource set is set to beam management, an SRS resource included in or associated with the SRS resource set is used to assist in determining a transmit beam for uplink transmission on one side of the UE and in determining a receive beam for uplink transmission on one side of the gNB. Therefore, in this scenario, an SRS resource set configured with a plurality of SRS resources can correspond to different or the same transmit beams (on the UE side) in different OFDM symbols. To support a scenario where the UE has a plurality of antenna panels to send uplink beams, a plurality of SRS resource sets can be configured simultaneously for the UE. The UE can choose to use a specific antenna panel to send SRS resources that Petition 870250105076, dated 11 / 17 / 2025, pp. 62 / 107 56 / 92 belong to the same SRS resource set. A mapping relationship between an SRS resource set and a UE antenna panel depends on the UE implementation.

[00169] Therefore, gNB can use the SRS sources from these SRS resource sets to evaluate different uplink transmission beams and select which sent SRS resources (e.g., beams) are preferred and can be used for staggered PUSCH transmission. To send PUSCH via these beams, these selected SRS resources are subsequently configured as a spatial relation of SRSs used for a codebook-based or non-codebook-based PUSCH. The spatial relation is defined on the UE side and is used to configure an association between a downlink signal and an uplink signal or an association between two uplink signals.When these selected SRS features are configured as the spatial relationship of the SRSs used for codebook-based or non-codebook-based PUSCH, this means that these SRS features used for beam management can be used as a reference for SRS-based link adaptation measurement used for PUSCH transmission.

[00170] (4) SRS used for antenna switching

[00171] The SRS used for antenna switching is introduced to allow gNB to obtain uplink channel state information by measuring the SRS based on the reciprocity between the uplink and downlink channels to assist downlink transmission, for example, physical downlink shared channel (PDSCH) transmission. When the use of an SRS feature set is configured as antenna switching, an SRS feature included in the SRS feature set is used for that purpose. An SRS feature set whose use is configured as antenna switching can be used for a Petition 870250105076, dated 11 / 17 / 2025, pp. 63 / 107 57 / 92 terminal device with different numbers of transmit (Tx) and receive (RX) antennas. In this scenario, the number of Tx antennas on the terminal device is usually less than the number of RX antennas. Therefore, the terminal device needs to send SRS resources through different antennas at different times, which is known as antenna switching. A set of SRS resources whose use is configured as antenna switching can also be used for a terminal device with the same number of transmit antenna branches (Tx antenna branch) and receive antenna branches (RX antenna branch). In this scenario, the terminal device can simultaneously send SRS resources through different Tx antennas without performing antenna switching.For different UE antenna capabilities, such as 1 transmit 1 receive (1T1R), 1 transmit 2 receive (1T2R), 1 transmit 4 receive (1T4R), 2 transmit 2 receive (2T2R), 2 transmit 4 receive (2T4R), and 4 transmit 4 receive (4T4R), the configurations of an SRS feature set and the SRS features included in the SRS feature set are also different.

[00172] The above describes that a usage can be configured for an SRS resource set. If the M SRS resource sets in this application are used for codebook-based uplink transmission or non-codebook-based uplink transmission, that is, the usage of the M SRS resource sets is configured as codebook or non-codebook, for the SRS resource set indicator field in the PUSCH scheduling grant, the SRS resource set indicator field will be related to a PUSCH type scheduled by the PUSCH scheduling grant. For more details, see the following method. The PUSCH scheduling grant can be ported to DCI, and the DCI used to schedule the PUSCH transmission includes a DCI 0_0 format (DCI Petition 870250105076, dated 11 / 17 / 2025, pp. 64 / 107 58 / 92 format 0_0), a DCI 0_1 format, a DCI 0_2 format and the like, or it can be ported over another channel or signal, for example, a random access response uplink grant (RAR UL grant).

[00173] Method 1

[00174] Optionally, in some modalities, method 600 also includes:

[00175] The network device sends an uplink scheduling grant to the terminal device, where the uplink scheduling grant includes an SRS resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes the SBFD type and the non-SBFD type.

[00176] Correspondingly, the terminal device receives the uplink scheduling grant.

[00177] Specifically, if the time unit type of the uplink transmission scaled by the uplink scheduling grant is of type SBFD, the time unit type of the SRS resource indicated by the SRS resource indicator field will also be of type SBFD, in other words, the SRS resource indicated by the SRS resource indicator field is an SRS resource in at least one first SRS resource; or if the time unit type of the uplink transmission scaled by the uplink scheduling grant is of type non-SBFD, the time unit type of the SRS resource indicated by the SRS resource indicator field will also be of type non-SBFD, in other words, the SRS resource indicated by the SRS resource indicator field is an SRS resource in at least one second SRS resource.

[00178] In this type of request, an example is used. Petition 870250105076, dated 11 / 17 / 2025, pp. 65 / 107 59 / 92 where the uplink transmission is a PUSCH. The terminal device receives an uplink scheduling grant from the network device, where the scheduling grant includes an SRS resource indicator field, and a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as a time unit type of the PUSCH scheduled by the uplink scheduling grant. Therefore, when sending the PUSCH, the terminal device can send the PUSCH in the same way as the previous SRS transmission. That is, if the SRS is transmitted in the SBFD time unit, the terminal device can also send the PUSCH in the SBFD time unit.

[00179] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature indicator field, and the time unit type of the SRS feature indicated by the SRS feature indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can improve the uplink transmission performance and improve the SRS measurement efficiency.

[00180] Method 2

[00181] Optionally, in some modalities, method 600 also includes: The network device sends an uplink scheduling grant to the endpoint device, where the uplink scheduling grant includes an SRS feature set indicator field; an SRS feature set type indicated by the SRS feature set indicator field is the same as a time unit type. Petition 870250105076, dated 11 / 17 / 2025, pp. 66 / 107 60 / 92 uplink transmission scaled by uplink scheduling grant, and the SRS feature set type includes one type from the first SRS feature set and one type from the second SRS feature set.

[00182] Correspondingly, the terminal device receives the uplink scheduling grant.

[00183] Specifically, if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type SBFD, the type of the SRS resource set indicated by the SRS resource set indicator field will also be type SBFD, in other words, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets; or if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type non-SBFD, the type of the SRS resource set indicated by the SRS resource set indicator field will also be type non-SBFD, in other words, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the second Y SRS resource sets.

[00184] In this application, an example is used where the uplink transmission is a PUSCH. The terminal device receives an uplink scheduling grant from the network device, where the scheduling grant includes an SRS resource set indicator field, and an SRS resource set type indicated by the SRS resource set indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant. Therefore, when sending the PUSCH, the terminal device can send the PUSCH in the same way as the previous SRS transmission in the SRS resource set type. For example, the terminal device sends the Petition 870250105076, dated 11 / 17 / 2025, pp. 67 / 107 61 / 92 PUSCH uses the same spatial domain filter used to send SRS.

[00185] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS resource set indicator field, and the SRS resource set type indicated by the SRS resource set indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS resource set indicated by the SRS resource set indicator field. This can improve the transmission performance of the uplink transmission.

[00186] Method 3

[00187] Optionally, in some modalities, method 600 also includes: The network device sends an uplink scheduling grant to the end device, where the uplink scheduling grant includes an SRS feature set indicator field, the type of SRS feature set indicated by the SRS feature set indicator field is determined based on a first indicator field included in the uplink scheduling grant, and the first indicator field indicates that the SRS feature set indicated by the SRS feature set indicator field is an SRS feature set in the first X SRS feature sets or an SRS feature set in the second Y SRS feature sets.

[00188] Correspondingly, the terminal device receives the uplink scheduling grant.

[00189] The first indicator field in this mode of this Petition 870250105076, dated 11 / 17 / 2025, pp. 68 / 107 62 / 92 request can be a new indicator field and can be entered using DCI.

[00190] Specifically, if the first indicator field included in the uplink scheduling grant indicates that the SRS resource set type indicated by the SRS resource set indicator field is the SBFD type, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets; or if the first indicator field included in the uplink scheduling grant indicates that the SRS resource set indicated by the SRS resource set indicator field is the non-SBFD type, the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the second Y SRS resource sets.

[00191] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature set indicator field, and the type of SRS feature set indicated by the SRS feature set indicator field is determined based on the first indicator field included in the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the SRS transmission on the SRS feature set indicated by the SRS feature set indicator field. This can improve the transmission performance of the uplink transmission.

[00192] Method 4

[00193] Optionally, in some modalities, method 600 also includes: The network device sends an uplink scaling grant to the endpoint device, where the Petition 870250105076, dated 11 / 17 / 2025, pp. 69 / 107 63 / 92 uplink scheduling grant includes an SRS resource set indicator field, the SRS resource set indicator field indicates an SRS resource set type and an SRS resource set included in the indicated SRS resource set type, and the SRS resource set type includes a first SRS resource set type and a second SRS resource set type.

[00194] Correspondingly, the terminal device receives the uplink scheduling grant.

[00195] In this mode of this request, the SRS resource set indicator field included in the uplink scheduling grant may indicate the type of the SRS resource set. For example, the SRS resource set indicator field may indicate that the SRS resource set type is the type of the first SRS resource set, and the SRS resource set indicator field may indicate that the SRS resource set type is the type of the second SRS resource set. In other words, the SRS resource set indicator field may indicate that the indicated SRS resource set is the SRS resource set in the first SRS resource set, or the SRS resource set indicator field may indicate that the indicated SRS resource set is the SRS resource set in the second SRS resource set.

[00196] In addition, the SRS resource set indicator field included in the uplink scheduling grant may further indicate the SRS resource set included in the indicated SRS resource set type. For example, it is assumed that the SRS resource set indicator field may indicate that the SRS resource set type is the type of the first SRS resource set, and the first SRS resource set includes five first SRS resource sets: a first SRS resource set 1, a first SRS resource set 2, a first SRS resource set 3, a first SRS resource set Petition 870250105076, dated 11 / 17 / 2025, pp. 70 / 107 64 / 92 of SRS 4 resources and a first set of SRS 5 resources. In this case, the SRS resource set indicator field may further indicate a first set of SRS resources specifically included or used in the first set of SRS resources type, for example, some or all of the first five sets of SRS resources: the first set of SRS resources 1, the first set of SRS resources 2, the first set of SRS resources 3, the first set of SRS resources 4, and the first set of SRS resources 5.

[00197] For example, it is assumed that the SRS feature set indicator field may indicate that the SRS feature set type is the type of the second SRS feature set, and the second SRS feature set includes five second SRS feature sets: a second SRS feature set 1, a second SRS feature set 2, a second SRS feature set 3, a second SRS feature set 4, and a second SRS feature set 5. In this case, the SRS feature set indicator field may further indicate a second SRS feature set specifically included or used in the type of the second SRS feature set, for example, some or all of the five second SRS feature sets: the second SRS feature set 1, the second SRS feature set 2, the second SRS feature set 3, the second SRS feature set 4, and the second SRS feature set 5.

[00198] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS resource set indicator field, and the SRS resource set indicator field indicates the type of SRS resource set and the SRS resource set included in the indicated type of SRS resource set. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the Petition 870250105076, dated 11 / 17 / 2025, pp. 71 / 107 65 / 92 SRS transmission in the SRS feature set type indicated by the SRS feature set indicator field and in the SRS feature set included in the SRS feature set type. This can improve the transmission performance of the uplink transmission.

[00199] It should be understood that, in this embodiment of this application, an SRS resource can define an SRS signal, i.e., the SRS resource can represent the SRS signal. For example, that the terminal device sends the uplink transmission in the same way as the SRS transmission in the SRS resource set indicated by the SRS resource set indicator field can be understood as: The terminal device sends the uplink transmission in the same way as the SRS transmission corresponding to the SRS resource in the SRS resource set indicated by the SRS resource set indicator field.

[00200] Optionally, in some modes, the length of the SRS feature set indicator field is determined based on the larger value between X and Y.

[00201] In this mode of this request, if X and Y are 1, the length of the feature set indicator field will be n1 bits; or if at least one of X and Y is greater than or equal to 2, the length of the feature set indicator field will be greater than or equal to n2 bits, where n2 is greater than n1.

[00202] For Way 1 and Way 2, the length of the SRS feature set indicator field can be 0 bits or 2 bits. An example where the uplink transmission scheduled by an uplink scheduling grant is a PUSCH is used below for description.

[00203] Note that for a scenario where a value of X or Y is 0, i.e., a network configures only one SRS resource set used for an SBFD type or a non-SBFD type, the SRS resource set indicator field is associated with the configured type of SRS resource set by default. For a value Petition 870250105076, dated 11 / 17 / 2025, pp. 72-107 66 / 92 and a field meaning, refer to conventional technology. What follows focuses on the scenario where X and Y are greater than 0.

[00204] (1) When the values ​​of X and Y are both 1, the length of the SRS feature set indicator field can be 0 bits, that is, the SRS feature set indicator field may not be required to indicate the type of the SRS feature set. For UE, UE can, by default, use an SRS feature set whose type is the same as a scheduling type of an uplink transmission time unit scheduled by uplink scheduling grant.

[00205] For example, if a time unit type of a PUSCH scheduled by a PUSCH scheduling grant is of type SBFD, the UE can by default consider that the type of the SRS resource set associated with the SRS resource set indicator field is also of type SBFD, so that the UE can transmit the SRS on an SRS resource in the SRS resource set of the SBFD type time unit; or if a time unit type of a PUSCH scheduled by a PUSCH scheduling grant is of type non-SBFD, the UE can by default consider that the type of the SRS resource set associated with the SRS resource set indicator field is also of type non-SBFD, so that the UE can transmit the SRS on an SRS resource in the SRS resource set of the non-SBFD type time unit.

[00206] (2) When at least one value of X and Y is 2, the length of the SRS feature set indicator field can be 2 bits. For example, X=1 and Y=2 are assumed. If a time unit type of a PUSCH scheduled by a PUSCH scheduling grant is of type SBFD, because there is an SRS feature set used for the SBFD type time unit, the UE can ignore the one indicated by the SRS feature set indicator field and use the SRS feature set by default; or if a time unit type of a PUSCH scheduled by a Petition 870250105076, dated 11 / 17 / 2025, pp. 73 / 107 67 / 92 PUSCH scheduling grant for non-SBFD type, because there are two sets of SRS features used for the non-SBFD type time unit, the UE can determine one set of SRS features in the two sets of SRS features based on the value of the SRS feature set indicator field. For more details, see Table 2.

[00207] The length of the SRS feature set indicator field is 2 bits and may include the following formats: for example, 00, 01, 10, and 11, where 00 may correspond to index 0 in Table 2, 01 may correspond to index 1 in Table 2, 10 may correspond to index 2 in Table 2, and 11 may correspond to index 3 in Table 2. However, it should be understood that the above corresponding manner is merely an example and there may be another corresponding manner. This should not constitute a special limitation for this application.

[00208] In other words, if the value of the SRS feature set indicator field is 00, the UE can determine, based on Table 2, that the SRS feature set indicator field and a precoding information field and layer quantity in the SRS feature set indicator field are associated with the first SRS feature set. A second SRS feature set indicator field and a second precoding information field are reserved.

[00209] For X=2 and Y=1, if the time unit type of the PUSCH scaled by the PUSCH scaling grant is of type non-SBFD, because there is an SRS feature set used for the non-SBFD time unit, the UE can ignore the indicator field and use the SRS feature set by default; or if the time unit type of the PUSCH scaled by the PUSCH scaling grant is of type SBFD, because there are two SRS feature sets used for the SBFD time unit, the UE can determine an SRS feature set from the two SRS feature sets based on the value of the set indicator field. Petition 870250105076, dated 11 / 17 / 2025, pp. 74 / 107 68 / 92 of SRS resources. The details are similar to the previous case, where X=1 and Y=2, and the details are not described again.

[00210] (3) When the values ​​of X and Y are both 2, the UE determines, based on the value of the SRS resource set indicator field, an SRS resource set that is in SRS resource sets X or in SRS resource sets Y and that is of the same type as the PUSCH scaled by the PUSCH scaling grant.

[00211] For example, if the time unit type of the PUSCH scaled by the PUSCH scaling grant is type SBFD, since there are two sets of SRS features used for the SBFD type time unit, the UE can determine one set of SRS features in the two sets of SRS features based on the value of the SRS feature set indicator field. For more details, see the related content of X=2. Details are not described again.

[00212] If the time unit type of the PUSCH staggered by the PUSCH scaling grant is of the non-SBFD type, because there are two SRS feature sets used for the non-SBFD type time unit, the UE can determine one SRS feature set in the two SRS feature sets based on the value of the SRS feature set indicator field. For more details, see the related content of Y=2. Details are not described again.

[00213] For Method 3, the length of the first indicator field can be 1 bit, and bit 1 indicates the type of SRS feature set indicated by the SRS feature set indicator field. That is, bit 1 indicates whether the SRS feature set indicated by the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit or an SRS feature set used for the non-SBFD type time unit. The length of the SRS feature set indicator field can be 0 bits or 2 bits. An example Petition 870250105076, dated 11 / 17 / 2025, pp. 75 / 107 69 / 92 in which the uplink transmission scheduled by granting uplink scheduling is a PUSCH is used below for description.

[00214] (1) When the values ​​of X and Y are both 1, the length of the first indicator field can be 1 bit, and bit 1 indicates the type of the indicated SRS feature set. That is, bit 1 indicates whether the SRS feature set indicated by the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit or an SRS feature set used for the non-SBFD type time unit. After determining the type of SRS feature set, the UE can use the indicated SRS feature set by default.

[00215] (2) When at least one value of X and Y is 2, the length of the first indicator field can be 1 bit, and bit 1 indicates the type of the indicated SRS feature set. That is, bit 1 indicates whether the SRS feature set indicated by the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit or an SRS feature set used for the non-SBFD type time unit. The length of the SRS feature set indicator field can be 2 bits, and the 2 bits can be used to determine, based on the type of indicated SRS feature set, the corresponding SRS feature set to be used. For specific content, see the related content in Method 1. Details are not described again.

[00216] For Way 4, the length of the SRS feature set indicator field can be 1 bit or 3 bits. An example in which the uplink transmission scheduled by uplink scheduling grant is a PUSCH is used below for description.

[00217] (1) When the values ​​of X and Y are both 1, the length of the SRS feature set indicator field can be 1 bit, and the bit 1 indicates the type of SRS feature set. Petition 870250105076, dated 11 / 17 / 2025, pp. 76 / 107 70 / 92 associated. That is, bit 1 indicates whether the SRS feature set associated with the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit or an SRS feature set used for the non-SBFD type time unit. After determining the type of SRS feature set, the UE can use the determined SRS feature set by default.

[00218] It is assumed that 1 bit indicates that the SRS feature set associated with the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit; the UE determines that the SRS feature set associated with the SRS feature set indicator field is the SRS feature set used for the SBFD type time unit.

[00219] It is assumed that 1 bit indicates that the SRS feature set associated with the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit; the UE determines that the SRS feature set associated with the SRS feature set indicator field is the SRS feature set used for the non-SBFD type time unit.

[00220] (2) When at least one of X and Y is 2, the length of the SRS feature set indicator field can be 3 bits, and one of the 3 bits can indicate the type of associated SRS feature set. That is, bit 1 indicates whether the SRS feature set associated with the SRS feature set indicator field is an SRS feature set used for the SBFD type time unit or an SRS feature set used for the non-SBFD type time unit. The remaining 2 bits can be used to determine, based on the determined SRS feature set type, the corresponding SRS feature set to be used.

[00221] For example, it is assumed that X=1 and Y=2, if bit 1 plus Petition 870250105076, dated 11 / 17 / 2025, pp. 77 / 107 71 / 92 significant indicates that the type of the associated SRS feature set is an SRS feature set used for the SBFD type time unit, the UE can ignore the indicator field and use the associated SRS feature set indicated by the most significant bit 1 by default; or if the most significant bit 1 indicates that the type of the associated SRS feature set is two SRS feature sets used for the non-SBFD type time unit, the UE can determine an SRS feature set from the two SRS feature sets based on a value of the SRS feature set indicator field indicated by the remaining 2 bits. For specific content, see the related content in Method 1. Details are not described again.

[00222] For another example, assume X=2 and Y=1, if the most significant bit 1 indicates that the type of the associated SRS feature set is an SRS feature set used for the non-SBFD type time unit, the UE can ignore the indicator field and use the associated SRS feature set indicated by the most significant bit 1 by default; or if the most significant bit 1 indicates that the type of the associated SRS feature set is two SRS feature sets used for the SBFD type time unit, the UE can determine an SRS feature set from the two SRS feature sets based on a value of the SRS feature set indicator field indicated by the remaining 2 bits. For specific content, see the related content in Method 1. Details are not described again.

[00223] It should be understood that, in the previous examples, the most significant bit 1 indicates the associated SRS feature set. In some implementations, any of the bits may indicate the associated SRS feature set. This is not limited.

[00224] In the solution provided in this embodiment of this application, the length of the SRS feature set indicator field is determined based on the larger value between X and Y. This can further improve SRS transmission performance. Petition 870250105076, dated 11 / 17 / 2025, pp. 78 / 107 72 / 92

[00225] In this mode of this request, for the SRS resource indicator field and the second SRS resource indicator field in the PUSCH scheduling grant, the bit lengths of the SRS resource indicator field and the second SRS resource indicator field can be determined based on an amount of SRS resources configured in the SRS resource pool determined based on the resource pool indicator field. SRS, or they can be determined based on a number of SRS features configured in an SRS feature set whose usage is codebook or non-codebook and which is configured via RRC.

[00226] (1) For the SRS resource indicator field

[00227] If a top-layer parameter txConfig is set to non-codebook, the bit length is )NSRS 1 klog 2 ( min( Lmax , NSRS1 Σ lk=1

[00228] Nsrs1 is a quantity of SRS resources configured in the SRS resource set indicator field determined based on the SRS resource set indicator field (if any), or a quantity of SRS resources configured in the SRS resource set whose usage is non-codebook and which is configured via the RRC; Lmax is a quantity of PUSCH transmission layers supported by the UE; ek is an index value.

[00229] If the top-layer parameter txConfig is set to codebook, the bit length will be log2(NSRS 1) ·

[00230] (2) For the second SRS feature indicator field

[00231] If the top-layer parameter txConfig is set to non-codebook and the SRS feature set indicator field exists, the bit length will be ( max ^ 1>2>Lmin(Lmax NSRS ) ( N SRS2 lk Petition 870250105076, dated 11 / 17 / 2025, pp. 79 / 107 73 / 92

[00232] If the length of the SRS feature set indicator field is not 0 bits, NSRS 2 is the amount of SRS features configured in the SRS feature set whose usage is non-codebook and which is determined based on the SRS feature set indicator field.

[00233] If the top-layer parameter txConfig is set to codebook and the SRS feature set indicator field exists, the bit length will be log2(NSRS3).

[00234] If the length of the SRS feature set indicator field is not 0 bits, NSRS 3 is a quantity of SRS features configured in the SRS feature set whose usage is codebook and which is determined based on the SRS feature set indicator field.

[00235] Otherwise, if the length of the SRS feature set indicator field is 0 bits, for NSRS 2 and NSRS 3, see the related content in Way 2 or Way 3 where the length of the feature set indicator field is 0.

[00236] Optionally, in some embodiments, for an SRS feature in at least one first SRS feature and / or in at least one second SRS feature, a time unit type of a reference signal associated with the SRS feature is the same as a time unit type of the SRS feature, and the time unit type includes the SBFD type and the non-SBFD type.

[00237] In this application, if the time unit type of the SRS resource is SBFD, the time unit type of the reference signal associated with the SRS resource will also be SBFD. If the time unit type of the SRS resource is non-SBFD, the time unit type of the reference signal associated with the SRS resource will also be non-SBFD.

[00238] Optionally, in some embodiments, the reference signal includes at least one of the following: a CSI-RS, an SSB, an SRS different from the SRS, and a signal of Petition 870250105076, dated 11 / 17 / 2025, pp. 80 / 107 74 / 92 downlink positioning reference signal (DL PRS).

[00239] FIG. 7 is a diagram of a time unit type of an SRS resource and a time unit type of a reference signal associated with the SRS resource according to a modality of this request.

[00240] It can be learned from the figure that the time unit type of the SRS resource is spatially associated with the time unit type of the reference signal (e.g., a CSI-RS, an SSB, another SRS, or a DL-PRS) associated with the SRS resource. To be more specific, if the time unit type of the SRS resource is an SBFD type, the reference signal associated with the SRS resource will also be of the SBFD type; or if the time unit type of the SRS resource is a non-SBFD type, the reference signal associated with the SRS resource will also be of the non-SBFD type.

[00241] If the time unit type of the SRS resource is spatially associated with another SRS, the UE can send an SRS through the same spatial domain transmission filter used for transmitting the other SRS. For example, assume that a time unit type of an SRS 1 resource is spatially associated with an SRS 2; when sending SRS 1, the UE can send SRS 1 through the same spatial domain transmission filter used for transmitting SRS 2. The other SRS (i.e., SRS 2) can be periodic, semi-persistent, or aperiodic.

[00242] If the time unit type of the SRS resource is spatially associated with a signal in CSI-RS, SSB, and DLPRS, the UE can send the SRS through the same spatial domain transmission filter used to receive the CSI-RS, SSB, or DLPRS transmission. For example, assume that the time unit type of the SRS resource is spatially associated with CSI-RS; when sending the SRS, the UE can send the SRS through the same spatial domain transmission filter used for the Petition 870250105076, dated 11 / 17 / 2025, pp. 81 / 107 75 / 92 CSI-RS transmission. CSI-RS can be periodic, semi-persistent, or aperiodic. Specifically, for an aperiodic CSI-RS, a recently received CSI-RS can be used.

[00243] In the solution provided in this embodiment of this application, for the SRS resource in at least one first SRS resource and / or in at least one second SRS resource, the time unit type of the reference signal associated with the SRS resource is the same as the time unit type of the SRS resource, i.e., an SRS transmitted in the same time domain resource type is spatially associated with another reference signal (e.g., a CSI-RS, an SSB, another SRS, or a DL-PRS). This helps to enhance and improve the performance of the SRS transmission and, moreover, can also improve the transmission performance of a channel or signal based on the SRS transmission.

[00244] Furthermore, since a downlink sub-band and an uplink sub-band are introduced into an SBFD slot, crosstalk interference occurs between a downlink signal in the downlink sub-band and an uplink signal in the uplink sub-band. Therefore, the link quality in the SBFD slot / symbol is different from that in a non-SBFD slot / symbol. As a result, the link quality of the SRS does not match the link quality of an associated channel. For example, as shown in FIG. 8, an example where an SRS is used for codebook-based PUSCH transmission or non-codebook-based PUSCH transmission.If the SRS is transmitted in an SBFD slot / symbol, a scheduled PUSCH will be transmitted in an uplink slot, and the last transmission of an SRS resource indicated by an SRI field in DCI for PUSCH scheduling will be sent in a slot before the DCI; that is, the link quality of the SRS is the quality of the SBFD slot, but the link quality of the channel associated with the link quality of the SRS is a link in the non-SBFD slot / symbol. As a result, the link quality of the SRS does not match the... Petition 870250105076, dated 11 / 17 / 2025, pp. 82-107 76 / 92 link quality of the associated channel.

[00245] To solve this problem, one embodiment of this application provides another communication method 900. The 900 method can be implemented by a network device and a terminal device, and the 900 method can include steps S910 to S940.

[00246] S910: Send an uplink scheduling grant to the terminal device, where the uplink scheduling grant includes an SRS polling reference signal feature indicator field, a time unit type of an SRS feature indicated by the SRS feature indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type.

[00247] Specifically, if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type SBFD, the time unit type of the SRS resource indicated by the SRS resource indicator field will also be type SBFD; or if the time unit type of the uplink transmission scaled by the uplink scheduling grant is type non-SBFD, the time unit type of the SRS resource indicated by the SRS resource indicator field will also be type non-SBFD.

[00248] S920: Receive the uplink escalation grant from the network device.

[00249] S930: Send the uplink transmission to the network device based on the SRS feature indicator field.

[00250] In this type of request, an example is used where the uplink transmission is a PUSH. The terminal device receives an uplink scheduling grant from the network device, where the scheduling grant includes an SRS resource indicator field, and a Petition 870250105076, dated 11 / 17 / 2025, pp. 83 / 107 77 / 92 The time unit type of an SRS resource indicated by the SRS resource indicator field is the same as a PUSCH time unit type scheduled by the uplink scheduling grant. Therefore, when sending the PUSCH, the terminal device can send the PUSCH in the same way as the previous SRS transmission. That is, if the SRS is transmitted in the SBFD time unit, the terminal device can also send the PUSCH in the SBFD time unit; or if the SRS is transmitted in a non-SBFD time unit, the terminal device can also send the PUSCH in the non-SBFD time unit.

[00251] FIG. 10 is a diagram of a time unit type of an SRS resource and a time unit type of a PSUCH according to a modality of this request.

[00252] With reference to FIG. 10. The time unit type of the PUSCH scheduled by an uplink scheduling grant is an SBFD type and is associated with the most recent transmission on a resource indicated by an SRI of the scheduling grant in an SBFD type time unit.

[00253] FIG. 11 is another diagram of a time unit type of an SRS resource and a time unit type of a PSUCH according to a modality of this request.

[00254] With reference to FIG. 11. The time unit type of the PUSCH scheduled by an uplink scheduling grant is a non-SBFD type and is associated with the most recent transmission on a resource indicated by an SRI of the scheduling grant in a non-SBFD type time unit.

[00255] In this modality of this request, the EU sends the PUSCH in the same way as the previous SRS transmission, where the PUSCH is sent in the same way as the previous SRS transmission, it can be considered that the PUSCH is sent by means of a beam, an antenna port, a pre-encoder or similar which is the same as a beam, an antenna port or a pre-encoder to Petition 870250105076, dated 11 / 17 / 2025, pp. 84 / 107 78 / 92 send the SRS.

[00256] For codebook-based PUSCH transmission, in this case, the UE can send the PUSCH through an antenna port which is the same as an SRS port of the SRS resource.

[00257] For non-codebook-based PUSCH transmission, in this case, the UE can perform one-to-one mapping between indicated SRIs and indicated DM-RS ports and corresponding PUSCH layers {0, ..., ν-1}, and can send the PUSCH through the same antenna port as the SRS port of the SRS feature described above.

[00258] S940: Receive uplink transmission from the terminal device based on the SRS feature indicator field.

[00259] The network device can receive, based on the SRS feature indicator field, the PUSCH from the terminal device. Specifically, if the terminal device sends the PUSCH in the SBFD type time unit, the network device can correspondingly receive the PUSCH in the SBFD type time unit. If the terminal device sends the PUSCH in the non-SBFD type time unit, the network device can correspondingly receive the PUSCH in the non-SBFD type time unit.

[00260] In the solution provided in this embodiment of this application, the uplink scheduling grant from the network device to the terminal device includes the SRS feature indicator field, and the time unit type of the SRS feature indicated by the SRS feature indicator field is the same as the time unit type of the uplink transmission scheduled by the uplink scheduling grant. After receiving the uplink scheduling grant, the terminal device can send the uplink transmission in the same way as the previous SRS transmission. This can ensure that the link quality of the uplink transmission is similar to that of the associated SRS, improve the transmission performance of the uplink transmission, and improve the efficiency of SRS measurement. Petition 870250105076, dated 11 / 17 / 2025, pp. 85 / 107 79 / 92

[00261] One embodiment of this application provides yet another 1200 communication method. The 1200 method can be implemented by a network device and a terminal device, and the 1200 method can include steps S1210 to S1240.

[00262] S1210: Send second indication information to the terminal device, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS resource is the same as a time unit type of the SRS resource, and the time unit type includes an SBFD type and a non-SBFD type.

[00263] S1220: Receive the second terminal indicator information.

[00264] S1230: Send, to the network device based on the information from the second indication, an SRS corresponding to the SRS resource.

[00265] S1240: Receive, from the terminal device based on the second indication information, the SRS corresponding to the SRS resource.

[00266] In this embodiment of this application, the time unit type of the reference signal associated with the SRS resource is the same as the time unit type of the SRS resource, and may be predefined, preconfigured, or indicated by the second indication information. This is not limited.

[00267] Optionally, in some embodiments, the reference signal includes at least one of the following: a CSIRS channel status information reference signal, a physical broadcast channel block / SSB synchronization signal, an SRS other than the SRS, and a DL PRS downlink positioning reference signal.

[00268] For specific content, see the related content in method 600. The details are not described again in this document.

[00269] In the solution provided in this modality of this request, Petition 870250105076, dated 11 / 17 / 2025, pp. 86 / 107 80 / 92 The time unit type indicated by the second indication information from the network device to the terminal device, and which is the reference signal associated with the SRS resource, is the same as the time unit type of the SRS resource. That is, spatial association is performed between an SRS transmitted in a time domain resource of the same type and a reference signal associated with the SRS resource, and spatial association can be performed on reference signals with equal or similar link quality. This helps to enhance and improve the performance of SRS transmission and, in addition, can also improve the transmission performance of a channel or signal based on SRS transmission.

[00270] It should be understood that specific examples in the preceding embodiments are intended only to assist a person skilled in the art in better understanding the embodiments of this application, but are not intended to limit the scope of the embodiments of this application. It should be understood that the sequence numbers of the preceding processes do not signify a sequence of execution of the processes. The sequence of execution of the processes should be determined according to the functions and internal logic of the processes and should not be interpreted as any limitation to the implementation processes of embodiments of this application.

[00271] It should also be understood that, in embodiments of this application, unless otherwise indicated or there is a logical conflict, the terms and / or descriptions in different embodiments are consistent and can be mutually referenced, and the technical features in different embodiments can be combined based on an internal logical relationship to form a new embodiment.

[00272] It should also be understood that, in some of the preceding embodiments, a device in an existing network architecture is used primarily as an example for description. It should be understood that a specific form of the device is not limited in embodiments of this application. By Petition 870250105076, dated 11 / 17 / 2025, pp. 87 / 107 81 / 92 example, all devices that may implement the same function in the future are applicable to the modalities of this application.

[00273] It can be understood that, in the previous method embodiments, a method and an operation implemented by a device (for example, the terminal device or the network device) can alternatively be implemented by a component (for example, a chip or a circuit) that can be used in a device.

[00274] The above describes in detail the communication method provided in embodiments of this application. The foregoing communication method is described primarily from a perspective of interaction between the terminal device and the network device. It can be understood that, to implement the foregoing functions, the terminal device and the network device include corresponding hardware structures and / or software modules to perform the functions.

[00275] A person skilled in the art may be aware that, with reference to the examples described in embodiments disclosed in this descriptive report, algorithm units and steps may be implemented by hardware or a combination of computer software and hardware in this application. Whether a function is performed by hardware or hardware controlled by computer software depends on specific applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular application, but it should not be considered that the implementation goes beyond the scope of this application.

[00276] The following describes a communication device provided in embodiments of this application with reference to FIG. 13 and FIG. 14. It should be understood that the descriptions of the apparatus embodiments correspond to the descriptions of the method embodiments. Therefore, for content not described in detail, please refer to the preceding method embodiments. For brevity, some Petition 870250105076, dated 11 / 17 / 2025, pp. 88 / 107 82 / 92 contents are not described again.

[00277] In embodiments of this application, functional modules of a transmitting end device or a receiving end device may be divided based on examples from previous methods. For example, functional modules may be divided based on functions, or two or more functions may be integrated into a processing module. The integrated module may be implemented in a hardware form or may be implemented in a software functional module form. It should be noted that, in embodiments of this application, module division is an example, and is merely a logical function division. In the actual implementation, another form of division may be used. An example in which each functional module is obtained through division based on each corresponding function is used below for description.

[00278] FIG. 13 is a block diagram of a communication device 1300 according to an embodiment of this application. The device 1300 includes a transceiver module 1310. The transceiver module 1310 can implement a corresponding communication function. The transceiver module 1310 can also be called a communication interface or communication module.

[00279] Optionally, the 1300 device may also include a processing module, and the processing module may be configured to process data.

[00280] Optionally, the 1300 device may also include a storage module. The storage module may be configured to store instructions and / or data. The processing module may read the instructions and / or data in the storage module, so that the device implements the embodiments of the previous method.

[00281] Device 1300 can be configured to perform an action performed by the network device in the modes of the previous method, and transceiver module 1310 is configured Petition 870250105076, dated 11 / 17 / 2025, pp. 89 / 107 83 / 92 to perform a send / receive operation on the network device side in the modes of the previous method. Device 1300 can be configured to perform an action performed by the terminal device in the modes of the previous method, and transceiver module 1310 is configured to perform a send / receive operation on the terminal device side in the modes of the previous method.

[00282] When the 1300 device is configured to implement a network device function in the method mode in FIG. 6, the 1310 transceiver module is configured to: send configuration information to a terminal device, where the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features includes antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management and positioning, the M sets of SRS features include X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features include at least one first SRS feature, the Y second sets of SRS features include at least one second SRS feature,A time-domain resource corresponding to at least one first SRS resource is a full-duplex sub-band SBFD time unit; a time-domain resource corresponding to at least one second SRS resource is a non-SBFD time unit; M is an integer greater than or equal to 1, and X and Y are integers greater than or equal to 0; and receive an SRS from the terminal device based on configuration information.

[00283] When device 1300 is configured to implement a terminal device function in the mode of FIG. 6, transceiver module 1310 is configured to: receive configuration information from a network device, where the information of Petition 870250105076, dated 11 / 17 / 2025, pp. 90 / 107 The 84 / 92 configuration indicates M sets of SRS probe reference signal features. One use of the M sets of SRS features includes antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management, and positioning. The M sets of SRS features include X first sets of SRS features and Y second sets of SRS features. The X first sets of SRS features include at least one first SRS feature. The Y second sets of SRS features include at least one second SRS feature. A time-domain feature corresponding to at least one first SRS feature is a full-duplex sub-band SBFD time unit. A time-domain feature corresponding to at least one second SRS feature is a non-SBFD time unit. M is an integer greater than or equal to 1, and X and Y are integers greater than or equal to 0.and send an SRS to the network device based on the configuration information.

[00284] When device 1300 is configured to implement a network device function in the method mode in FIG. 9, transceiver module 1310 is configured to: send an uplink scheduling grant to a terminal device, where the uplink scheduling grant includes an SRS probe reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and receive the uplink transmission from the terminal device based on the SRS resource indicator field.

[00285] When device 1300 is configured to implement Petition 870250105076, dated 11 / 17 / 2025, pp. 91 / 107 85 / 92 a terminal device function in the embodiment of FIG. 9, the 1310 transceiver module is configured to: receive an uplink scheduling grant from a network device, where the uplink scheduling grant includes an SRS probe reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and send the uplink transmission to the network device based on the SRS resource indicator field.

[00286] When device 1300 is configured to implement a network device function in the method mode in FIG. 12, transceiver module 1310 is configured to: send second indication information to a terminal device, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS resource is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and receive, from the terminal device based on the second indication information, an SRS corresponding to the SRS resource.

[00287] When device 1300 is configured to implement a terminal device function in the mode of FIG. 12, transceiver module 1310 is configured to: receive second indication information from a terminal, where a time unit type that is indicated by the second indication information and that is of a reference signal associated with an SRS polling reference signal resource is the same as a time unit type of the SRS resource, and the time unit type includes a full-duplex sub-band SBFD type and a non-SBFD type; and Petition 870250105076, dated 11 / 17 / 2025, pp. 92 / 107 86 / 92 send, to a network device based on the second indication information, an SRS corresponding to the SRS resource.

[00288] The 1300 device can implement the steps or procedures performed by the terminal device in the method embodiments according to the embodiments of this application. The 1300 device may include modules configured to perform the method performed by the terminal device in the method embodiments. In addition, the modules in the 1300 device and the other previous operations and / or functions are used separately to implement corresponding method embodiment procedures of the terminal device in the method embodiments.

[00289] The 1300 device can implement the steps or procedures performed by the network device in the method modes according to the modes of this application. The 1300 device can include modules configured to perform the methods performed by the network device in the method modes. In addition, the modules in the 1300 device and the other previous operations and / or functions are used separately to implement corresponding method mode procedures of the network device in the method modes.

[00290] It should be understood that a specific process in which the modules perform the corresponding preceding steps is described in detail in the previous method embodiments. For brevity, the details are not described in this document.

[00291] The 1310 transceiver module in the preceding embodiments may be implemented by a transceiver or by means of a circuit related to the transceiver. The processing module may be implemented by at least one processor or by means of a circuit related to the processor, and the storage module may be implemented by at least one memory.

[00292] As shown in FIG. 14, one embodiment of this application further provides apparatus 1400. Apparatus 1400 includes a Petition 870250105076, dated 11 / 17 / 2025, pp. 93 / 107 The 87 / 92 1410 processor may also include one or more 1420 memories. The 1410 processor is coupled to the 1420 memory. The 1420 memory is configured to store a computer program or instructions and / or data. The 1410 processor is configured to execute the computer program or instructions and / or data stored in the 1420 memory, so that the method in the previous method embodiments is performed. Optionally, the 1400 device includes one or more 1410 processors.

[00293] Optionally, the 1420 memory and the 1410 processor can be integrated together or arranged separately.

[00294] Optionally, as shown in FIG. 14, the 1400 apparatus may also include a 1430 transceiver. The 1430 transceiver is configured to receive and / or send a signal. For example, the 1410 processor is configured to control the 1430 transceiver to receive and / or send a signal.

[00295] In one solution, the 1400 device is configured to implement operations performed by communication devices (e.g., the terminal device and the network device) in the modes of the previous method.

[00296] One embodiment of this application further provides a computer-readable storage medium. The computer-readable storage medium stores computer instructions for implementing the method performed by the communication device (e.g., the terminal device and the network device) in the preceding method embodiments.

[00297] For example, when a computer program is executed by a computer, the computer is enabled to implement the method performed by communication devices (e.g., the terminal device and the network device) in the previous method modes.

[00298] One embodiment of this application further provides a computer program product including instructions. When the instructions are executed by a computer, the computer is Petition 870250105076, dated 11 / 17 / 2025, pp. 94 / 107 88 / 92 enabled to implement the methods performed by communication devices (e.g., terminal device and network device) in the previous method modes.

[00299] One embodiment of this application further provides a communication system. The communication system includes the terminal device and the network device in the preceding embodiments.

[00300] For explanations and beneficial effects of the related content on any of the devices provided above, please refer to the corresponding method provided above. The details are not described again in this document.

[00301] It should be understood that the processor mentioned in the embodiments of this application may be a central processing unit (CPU) and may also be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component or the like. The general-purpose processor may be a microprocessor, or the processor may be any conventional or similar processor.

[00302] It should also be understood that the memory mentioned in embodiments of this application may be volatile and / or non-volatile memory. Non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EPROM), or flash memory. Volatile memory may be random access memory (RAM). For example, RAM may be used Petition 870250105076, dated 11 / 17 / 2025, pp. 95 / 107 89 / 92 as an external cache. By way of example, and not limitation, RAM can include the following plurality of forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM).

[00303] It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, a memory (storage module) may be integrated into the processor.

[00304] It should also be noted that the memory described in this descriptive report is intended to include, but is not limited to, these memories and any other memory of a suitable type.

[00305] A person with ordinary knowledge of the art may be aware that, in combination with the examples described in embodiments disclosed in this descriptive report, units and methods may be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed by hardware or software depends on specific applications and design constraints of the technical solutions. A person skilled in the art may use different methods to implement the described functions for each particular application, but it should not be considered that the implementation goes beyond the scope of protection of this application.

[00306] In the various embodiments provided in this application, it should be understood that the apparatus and method disclosed may be Petition 870250105076, dated 11 / 17 / 2025, pp. 96 / 107 90 / 92 implemented in other ways. For example, the described device modality is just one example. For instance, the division into units is merely a logical division of function and may be another division in the actual implementation. For example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not implemented. Furthermore, the mutual couplings or direct couplings or communication connections shown or discussed may be implemented through some interfaces. Indirect couplings or communication connections between devices or units may be implemented in electronic, mechanical, or other forms.

[00307] The units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one position, or may be distributed across a plurality of network units. Some or all of the units may be selected based on actual requirements to implement the solutions provided in this application.

[00308] In addition, functional units in the embodiments of this application may be integrated into a unit, each of the units may physically exist alone, or two or more units may be integrated into a unit.

[00309] All or some of the foregoing embodiments may be implemented using software, hardware, firmware, or any combination thereof. When software is used to implement the embodiments, all or some of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the procedure or functions according to the embodiments of this application are generated wholly or partially. The computer may be Petition 870250105076, dated 11 / 17 / 2025, pp. 97 / 107 91 / 92 a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. For example, the computer can be a personal computer, a server, or a network device. Computer instructions can be stored on a computer-readable storage medium or can be transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions can be transmitted from one internet page, computer, server, or data center to another internet page, computer, server, or data center on a wired network (e.g., a coaxial cable, a fiber optic cable, or a digital subscriber line (DSL)) or wireless network (e.g., infrared, radio, or microwave).Computer-readable storage media can be any usable media accessible by a computer or a data storage device, for example, a server or a data center, integrating one or more usable media. The usable media can be magnetic media (e.g., a floppy disk, a hard disk, or magnetic tape), optical media (e.g., a DVD), semiconductor media (e.g., a solid-state drive (SSD)), or similar. For example, usable media can include, but is not limited to, any media that can store program code, such as a USB flash drive, a removable hard disk, read-only memory (ROM), random access memory (RAM), a magnetic disk, or an optical disk.

[00310] The preceding descriptions are only specific implementations of this application, but are not intended to limit the scope of protection of this application. Any variation or substitution readily discoverable by a person skilled in the art within the technical scope disclosed in this application will fall within the scope of protection of this application. Therefore, the scope of protection of this Petition 870250105076, dated 11 / 17 / 2025, pp. 98 / 107 92 / 92 application will be subject to the scope of protection of the claims. Petition 870250105076, dated 11 / 17 / 2025, pp. 99 / 107

Claims

1 / 8 CLAIMS 1. A communication method, characterized in that the method is applied to a network device, and the method comprises: sending configuration information to a terminal device, wherein the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features comprises antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management, and positioning, the M sets of SRS features comprise X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features comprise at least one first SRS feature, the Y second sets of SRS features comprise at least one second SRS feature,A time-domain resource corresponding to at least one first SRS resource is a full-duplex sub-band SBFD time unit, a time-domain resource corresponding to at least one second SRS resource is a non-SBFD time unit, M is an integer greater than or equal to 1, and both X and Y are integers greater than or equal to 0; and receive an SRS from the terminal device based on configuration information.

2. Method according to claim 1, characterized in that X and Y are equal.

3. Method, according to claim 1 or 2, characterized in that if X is greater than 1, each of the first X sets of SRS features comprises the same quantity of SRS features; or if Y is greater than 1, each of the second Y sets of SRS features comprises the same quantity of SRS features; or if M is greater than 1, each of the M sets of SRS features comprises the same quantity of SRS features. Petition 870250091053, dated 06 / 10 / 2025, page 12 / 20 2 / 8 4. A method, according to any one of claims 1 to 3, characterized in that the configuration information comprises first indication information, and the first indication information indicates whether a time-domain resource corresponding to an SRS resource included in the SRS resource set is either the SBFD type time unit or the non-SBFD type time unit.

5. A method according to any one of claims 1 to 4, characterized in that the method further comprises: sending an uplink scheduling grant to the terminal device, wherein the uplink scheduling grant comprises an SRS resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type comprises both SBFD type and non-SBFD type.

6. A method according to any one of claims 1 to 4, characterized in that the method further comprises: sending an uplink scheduling grant to the terminal device, wherein the uplink scheduling grant comprises an SRS feature set indicator field, an SRS feature set type indicated by the SRS feature set indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the SRS feature set type comprises a first SRS feature set type and a second SRS feature set type.

7. A method according to any one of claims 1 to 4, characterized in that the method further comprises: sending an uplink scheduling grant to the terminal device, wherein the uplink scheduling grant comprises an SRS resource set indicator field, an SRS resource set type indicated by the SRS resource set indicator field is determined based on a first indicator field comprised in the uplink scheduling grant, and the first indicator field indicates that the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets or an SRS resource set in the second Y SRS resource sets.

8. A method according to any one of claims 1 to 4, characterized in that the method further comprises: sending an uplink scheduling grant to the terminal device, wherein the uplink scheduling grant comprises an SRS resource set indicator field, the SRS resource set indicator field indicates an SRS resource set type and an SRS resource set comprised in the indicated SRS resource set type, and the SRS resource set type comprises a first SRS resource set type and a second SRS resource set type.

9. A method, according to any one of claims 1 to 8, characterized in that a length of the SRS feature set indicator field is determined based on the larger value between X and Y.

10. A method according to any one of claims 1 to 9, characterized in that for an SRS feature in at least one first SRS feature and / or in at least one second SRS feature, a time unit type of a reference signal associated with the SRS feature is the same as a time unit type of the SRS feature, and the time unit type comprises both SBFD type and non-SBFD type.

11. Method, according to claim 10, characterized in Petition 870250091053, dated 06 / 10 / 2025, page 14 / 20 4 / 8 by the fact that the reference signal comprises at least one of the following: a CSIRS channel state information reference signal, a physical broadcast channel block / SSB synchronization signal, an SRS other than SRS, and a DL PRS downlink positioning reference signal.

12. A communication method, characterized in that the method is applied to a terminal device, and the method comprises: receiving configuration information from a network device, wherein the configuration information indicates M sets of SRS probe reference signal features, one use of the M sets of SRS features comprises antenna selection, codebook-based uplink transmission, non-codebook-based uplink transmission, beam management, and positioning, the M sets of SRS features comprise X first sets of SRS features and Y second sets of SRS features, the X first sets of SRS features comprise at least one first SRS feature, the Y second sets of SRS features comprise at least one second SRS feature, a time-domain feature corresponding to at least one first SRS feature is a time unit of the sub-band full-duplex type SBFD,A time-domain resource corresponding to at least one second is a non-SBFD type time unit, M is an integer greater than or equal to 1, and both X and Y are integers greater than or equal to 0; and send an SRS to the network device based on the configuration information.

13. Method according to claim 12, characterized in that X and Y are equal.

14. Method, according to claim 12 or 13, characterized in that if X is greater than 1, each of the first X sets of SRS features comprises the same quantity of SRS features; or if Y is greater than 1, each of the second Y sets of SRS features comprises the same quantity of SRS features; or if M is greater than 1, each of the M sets of SRS features comprises the same quantity of SRS features.

15. A method according to any one of claims 12 to 14, characterized in that the configuration information comprises first indication information, and the first indication information indicates whether a time-domain resource corresponding to an SRS resource included in the SRS resource set is either the SBFD type time unit or the non-SBFD type time unit.

16. A method according to any one of claims 12 to 15, characterized in that the method further comprises: receiving an uplink scheduling grant from the network device, wherein the uplink scheduling grant comprises an SRS resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type comprises both SBFD type and non-SBFD type.

17. A method according to any one of claims 12 to 15, characterized in that the method further comprises: receiving an uplink scheduling grant from the network device, wherein the uplink scheduling grant comprises an SRS resource set indicator field, an SRS resource set type indicated by the SRS resource set indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the SRS resource set type comprises a type of the first SRS resource set and a type of the second SRS resource set.

18. A method according to any one of claims 12 to 15, characterized in that the method further comprises: receiving an uplink scheduling grant from the network device, wherein the uplink scheduling grant comprises an SRS resource set indicator field, a type of SRS resource set indicated by the SRS resource set indicator field is determined based on a first indicator field comprised in the uplink scheduling grant, and the first indicator field indicates that the SRS resource set indicated by the SRS resource set indicator field is an SRS resource set in the first X SRS resource sets or an SRS resource set in the second Y SRS resource sets.

19. A method according to any one of claims 12 to 15, characterized in that the method further comprises: receiving an uplink scheduling grant from the network device, wherein the uplink scheduling grant comprises an SRS resource set indicator field, the SRS resource set indicator field indicates an SRS resource set type and an SRS resource set comprised in the indicated SRS resource set type, and the SRS resource set type comprises a first SRS resource set type and a second SRS resource set type.

20. A method, according to any one of claims 12 to 19, characterized in that a length of the SRS feature set indicator field is determined based on the larger value between X and Y.

21. Method, according to any one of claims 12 to 20, characterized in that for an SRS feature in at least one first SRS feature and / or in at least one second SRS feature, a time unit type of a reference signal associated with the SRS feature is the same as a time unit type of the SRS feature, and the time unit type comprises the SBFD type and the non-SBFD type.

22. Method according to claim 21, characterized in that the reference signal comprises at least one of the following: a CSIRS channel state information reference signal, a physical broadcast channel block / SSB synchronization signal, an SRS other than SRS, and a DL PRS downlink positioning reference signal.

23. A communication method, characterized in that the method is applied to a network device, and the method comprises: sending an uplink scheduling grant to a terminal device, wherein the uplink scheduling grant comprises an SRS polling reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink transmission time unit type scheduled by the uplink scheduling grant, and the time unit type comprises a full-duplex sub-band SBFD type and a non-SBFD type; and receiving the uplink transmission from the terminal device based on the SRS resource indicator field.

24. Communication method, characterized in that the method is applied to a terminal device, and the method comprises: receiving an uplink scheduling grant from a network device, wherein the uplink scheduling grant comprises an SRS probe reference signal resource indicator field, a time unit type of an SRS resource indicated by the SRS resource indicator field is the same as an uplink scheduling grant time unit type, and the time unit type comprises a full-duplex sub-band SBFD type and a non-SBFD type; and sending the uplink transmission to the network device based on the SRS resource indicator field.

25. Communication apparatus, characterized in that it comprises a processor and a communication interface, wherein the communication interface is configured to: receive a signal from a communication apparatus other than the communication apparatus and transmit the signal to the processor, or send a signal from the processor to a communication apparatus other than the communication apparatus; and the processor is configured to implement the method as defined in any one of claims 1 to 11, 12 to 22, 23 or 24 by means of a logic circuit or by executing code instructions.

26. Computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program and, when the computer program is run, the method as defined in any one of claims 1 to 11, 12 to 22, 23 or 24 is implemented. Petition 870250091053, dated 06 / 10 / 2025, pp. 19 / 20

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