SRS transmission method, device and equipment

Abstract

The present invention provides an SRS transmission method, apparatus, and device, which includes the steps of receiving SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources, and transmitting an SRS to the base station based on the SRS resources in the SRS resource set. The scheme of the present invention can improve resource utilization and reliability of uplink data transmission.

Description

[Technical Field]

[0001] The present invention relates to the field of communication technology, and in particular to an SRS transmission method, device and equipment. [Background technology]

[0002] Time Division Duplex (TDD) systems are widely used in mobile communication systems such as 5G systems. In TDD systems, a frame structure is divided into DL (Downlink) slots, UL (Uplink) slots, and flexible slots. A DL slot includes multiple DL symbols, and downlink data is processed in frequency domain resources corresponding to these DL symbols. A UL slot includes multiple UL symbols, and uplink data is processed in frequency domain resources corresponding to these UL symbols. A flexible slot includes at least one F (Flexible) symbol. A flexible symbol may be used for DL, i.e., downlink data is processed in frequency domain resources corresponding to the flexible symbol. A flexible symbol may be used for UL, i.e., uplink data is processed in frequency domain resources corresponding to the flexible symbol. A flexible symbol may be used for GP (Guard Period), i.e., uplink / downlink switching guard is performed in frequency domain resources corresponding to the flexible symbol. A TDD system may be operated in HD (Half Duplex) mode, ie, the same frequency domain resource is only used for either UL or DL ​​at the same time. Summary of the Invention [Means for solving the problem]

[0003] The present invention provides a sounding reference signal (SRS) transmission method applied to a user equipment, the method comprising: receiving SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including SRS resources overlapping with uplink sub-bands of sub-band full duplex (SBFD) time-frequency resources; transmitting an SRS to a base station based on the SRS resources in the SRS resource set.

[0004] The present invention provides an SRS transmission method applied to a base station, the method comprising: transmitting SRS resource configuration information to a user equipment, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user equipment, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources; receiving, from the user equipment, an SRS transmitted based on the SRS resources in the SRS resource set.

[0005] The present invention provides an SRS transmission device applied to a user device, the device comprising: a receiving module configured to receive SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources; a transmitting module configured to transmit an SRS to a base station based on the SRS resources in the SRS resource set.

[0006] The present invention provides an SRS transmission device applied to a base station, the device comprising: a transmitting module configured to transmit SRS resource configuration information to a user equipment, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user equipment, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources; a receiving module configured to receive, from the user equipment, an SRS transmitted based on an SRS resource in the SRS resource set.

[0007] The present invention provides a user device comprising a processor and a machine-readable storage medium, the machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being configured to implement the above-mentioned SRS transmission method by executing the machine-executable instructions.

[0008] The present invention provides a base station comprising a processor and a machine-readable storage medium, the machine-readable storage medium storing machine-executable instructions executable by the processor, the processor being configured to implement the above-mentioned SRS transmission method by executing the machine-executable instructions. [Effects of the Invention]

[0009] As can be seen from the above technical solution, a UE (User Equipment) transmits SRS using SRS resources within a sounding reference signal (SRS) resource set. When the SRS resources overlap with subband full duplex (SBFD) time-frequency resources, SRS transmission can be performed using the SBFD time-frequency resources. This improves the reliability of uplink data transmission, expands the cell coverage radius, enhances the accuracy of downlink beamforming, improves the real-time performance of beam tracking, reduces uplink / downlink interference caused by the introduction of SBFD time-frequency resources, and effectively integrates and implements SBFD time-frequency resource configuration and SRS transmission mechanisms. From a system-wide perspective, supporting SRS transmission in a TDD system improves resource utilization, enhances network coverage and capacity, increases uplink transmission resources and cell coverage range, reduces uplink transmission delay, and increases uplink transmission capacity. [Brief explanation of the drawings]

[0010] [Figure 1A] 1 is a flow diagram of an SRS transmission method according to one embodiment; [Figure 1B] 1 is a flow diagram of an SRS transmission method according to one embodiment; [Figure 2] FIG. 10 is a schematic diagram illustrating the configuration of an SRS resource set for an SBFD slot or SBFD symbol. [Figure 3] 1 is a schematic diagram illustrating a configuration of an SRS resource set for a UL slot or UL symbol. [Figure 4] FIG. 1 is a schematic diagram of non-contiguous SRS resources. [Figure 5] FIG. 10 is a schematic diagram illustrating configuration of SRS resource sets for SBFD slots / SBFD symbols and non-SBFD slots / non-SBFD symbols. [Figure 6A]FIG. 10 is a schematic diagram illustrating a case where the plurality of third-type SRS resources are consecutive SRS resources. [Figure 6B] FIG. 10 is a schematic diagram illustrating a case where the plurality of third-type SRS resources are non-contiguous SRS resources. [Figure 7A] 1 is a schematic diagram illustrating the configuration of an SRS transmission device according to an embodiment. [Figure 7B] 1 is a schematic diagram illustrating the configuration of an SRS transmission device according to an embodiment. [Figure 8A] FIG. 1 is a schematic diagram of a user device according to an embodiment. [Figure 8B] FIG. 2 is a schematic diagram illustrating the configuration of a base station according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] The terms used in the embodiments of the present invention are not intended to limit the present invention but merely to describe specific embodiments. As used in the embodiments and claims of the present invention, the singular forms "a," "the," and "said" are also intended to include the plural form unless the context clearly indicates otherwise. Also, as used herein, the term "and / or" should be understood to mean any and all possible combinations including one or more of the associated listed items.

[0012] In embodiments of the present invention, terms such as first, second, and third may be used to describe various pieces of information, but it should be understood that these pieces of information should not be limited to these terms. These terms are used only to distinguish between pieces of information of the same type. For example, first information may be referred to as second information, and similarly, second information may be referred to as first information, without departing from the scope of the present invention. Furthermore, depending on the context, the word "if" may be interpreted as "when," "when," or "depending on determining that."

[0013] The TDD system can operate in HD (Half Duplex) mode, i.e., the same frequency domain resource is used for either UL or DL ​​at the same time. To use the frequency domain resource more flexibly and improve resource utilization, the TDD system can also operate in FD (Full-Duplex) mode, i.e., the same frequency domain resource is used for both UL and DL at the same time. That is, uplink data and downlink data are processed simultaneously via the same frequency domain resource.

[0014] In a TDD system, the frame structure is divided into DL slots, UL slots, and flexible slots. Once the frame structure is determined, the UE can transmit and receive data based on the frame structure. For UEs using HD mode, the base station (e.g., gNB) schedules the UE for transmission or reception based on the frame structure. For UEs using FD mode, the base station schedules the UE for transmission, reception, or simultaneous transmission and reception based on the frame structure. As described above, the base station configures the frame structure and notifies the UE of the frame structure, allowing the UE to recognize the frame structure and achieve accurate data transmission and reception. From another perspective, by recognizing the frame structure, the UE can predict potential interference between UEs and employ interference cancellation techniques to mitigate the interference and improve communication reliability.

[0015] In one embodiment, in a TDD system, a frame structure mainly used for downlink transmission typically has many DL slots, resulting in fewer UL slots, which limits the uplink transmission rate and increases the transmission delay of uplink data, resulting in disadvantages to uplink services.

[0016] One embodiment of the present invention provides an SRS transmission method. By utilizing SBFD time-frequency resources, flexible downlink frequency domain resources and uplink frequency domain resources are configured for a UE. Uplink data can be transmitted via the uplink frequency domain resources. That is, uplink frequency domain resources are configured in downlink slots or flexible slots, and uplink data is transmitted via the uplink frequency domain resources. This can improve the uplink transmission rate and reduce the transmission delay of the uplink data. Also, downlink frequency domain resources can be configured in uplink slots or flexible slots, and downlink data can be transmitted via the downlink frequency domain resources. This can improve the downlink transmission rate and reduce the transmission delay of the downlink data.

[0017] In one embodiment of the present invention, an SRS transmission method applied to a user device is provided. As shown in Figure 1A, there is a flow diagram of the SRS transmission method, which may include steps 111-112.

[0018] In step 111, receive SRS resource configuration information sent from a base station, where the SRS resource configuration information is information for indicating an SRS resource set, where the SRS resource set may include SRS resources that overlap with uplink subbands of SBFD time-frequency resources, and the SRS resources may be SRS time-frequency resources.

[0019] In step 112, transmit the SRS to the base station based on the SRS resources in the SRS resource set.

[0020] In one embodiment of the present invention, a method for transmitting SRS applied to a base station is provided. As shown in Figure 1B, there is a flow diagram of the method for transmitting SRS, which may include steps 121-122.

[0021] In step 121, SRS resource configuration information is sent to the user equipment, where the SRS resource configuration information is information for indicating an SRS resource set to be used by the user equipment, and the SRS resource set includes SRS resources that overlap with uplink subbands of the SBFD time-frequency resources.

[0022] In step 122, receive an SRS transmitted from a user device based on an SRS resource in the SRS resource set.

[0023] In one embodiment, a user equipment supports a first SRS resource set and a second SRS resource set, and a base station transmits to the user equipment first configuration information corresponding to the first SRS resource set and second configuration information corresponding to the second SRS resource set, where the first configuration information is information for indicating the first SRS resource set and the second configuration information is information for indicating the second SRS resource set, the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of the SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or uplink symbol.

[0024] In one embodiment, the user equipment supports a third SRS resource set, and the base station transmits third configuration information corresponding to the third SRS resource set to the user equipment. Here, the third configuration information is information for indicating the third SRS resource set. The third SRS resource set includes a plurality of third-type SRS resources, and the plurality of third-type SRS resources include SRS resources that overlap with at least uplink subbands of the SBFD time-frequency resource. The plurality of third-type SRS resources may be contiguous SRS resources or non-contiguous SRS resources located in different slots.

[0025] In one embodiment, both the base station and the user equipment obtain a predetermined target bandwidth setting list. The target bandwidth setting list is generated based on an initial bandwidth setting list. If the number of physical resource blocks (PRBs) between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list. The number of PRBs between the first and intermediate physical layer resources is equal to or less than the predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than the predetermined threshold. Here, the physical layer resource may be a frequency domain resource of the physical layer, and the physical layer resource may also be referred to as a bandwidth.

[0026] In one embodiment, the step of the user equipment transmitting the SRS to the base station based on the SRS resources in the first SRS resource set includes, but is not limited to, transmitting the SRS to the base station based on the first type SRS resources in the first SRS resource set by referring to the target bandwidth setting list when the first type SRS resources in the first SRS resource set are located within an uplink subband range of the SBFD time-frequency resource.

[0027] In one embodiment, when the first type of SRS resource in the first SRS resource set includes a first partial resource located within an uplink subband range of the SBFD time-frequency resource and a second partial resource located outside the uplink subband range of the SBFD time-frequency resource, the step of transmitting the SRS to the base station based on the SRS resource in the first SRS resource set includes, but is not limited to, any of the following operations (a) to (e): (a) transmitting the SRS to the base station based on the first partial resource in the first type of SRS resource, and transmitting the SRS to the base station based on the second partial resource in the first type of SRS resource.

[0028] (b) Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

[0029] (c) Prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

[0030] (d) when the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, transmit an SRS to the base station based on a first partial resource within the first-type SRS resource and prohibit SRS transmission to the base station based on a second partial resource within the first-type SRS resource, or prohibit SRS transmission to the base station based on the first partial resource within the first-type SRS resource and prohibit SRS transmission to the base station based on the second partial resource within the first-type SRS resource. When the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, transmit an SRS to the base station based on the first partial resource within the first-type SRS resource and transmit an SRS to the base station based on the second partial resource within the first-type SRS resource.

[0031] (e) receiving SRS transmission instruction information from the base station, and if the SRS transmission instruction information permits SRS transmission using the second partial resources, transmitting the SRS to the base station based on the first partial resources within the first type of SRS resources and transmitting the SRS to the base station based on the second partial resources within the first type of SRS resources; and if the SRS transmission instruction information does not permit SRS transmission using the second partial resources, transmitting the SRS to the base station based on the first partial resources within the first type of SRS resources and prohibiting SRS transmission to the base station based on the second partial resources within the first type of SRS resources, or prohibiting SRS transmission to the base station based on the first partial resources within the first type of SRS resources and prohibiting SRS transmission to the base station based on the second partial resources within the first type of SRS resources.

[0032] Here, "SBFD time-frequency resources located in downlink slots" refers to configuring SBFD time-frequency resources in downlink slots, for example, configuring SBFD time-frequency resources in one or more symbols in a downlink slot. "SBFD time-frequency resources located in downlink symbols" refers to configuring SBFD time-frequency resources in downlink symbols, which may be, but are not limited to, downlink symbols in downlink slots, downlink symbols in flexible slots, or downlink symbols in uplink slots. "SBFD time-frequency resources located in flexible slots" refers to configuring SBFD time-frequency resources in flexible slots, for example, configuring SBFD time-frequency resources in one or more symbols in flexible slots. "SBFD time-frequency resources located in flexible symbols" refers to configuring SBFD time-frequency resources in flexible symbols, which may be, but are not limited to, flexible symbols in downlink slots, flexible symbols in flexible slots, or flexible symbols in uplink slots.

[0033] In one embodiment, when SRS transmission to the base station based on the second partial resource within the first-type SRS resource is prohibited, the step of transmitting the SRS to the base station based on the first partial resource within the first-type SRS resource includes determining a target transmission power by any of the following (a) to (c), and transmitting the SRS to the base station based on the first partial resource under the target transmission power: (a) determining the target transmission power based on the maximum transmission power; (b) determining the target transmission power based on the maximum transmission power and a resource ratio; or (c) receiving transmission power instruction information from the base station, and if the transmission power instruction information is the first instruction information, determining the target transmission power based on the maximum transmission power, and if the transmission power instruction information is the second instruction information, determining the target transmission power based on the maximum transmission power and a resource ratio. Here, the resource ratio may be the resource ratio between the first partial resource and the first-type SRS resource.

[0034] In one embodiment, for each second-type SRS resource in the second SRS resource set, if the uplink slot or uplink symbol in which the second-type SRS resource is located includes a downlink subband of the SBFD time-frequency resource, and the second-type SRS resource includes a third partial resource located outside the downlink subband range and a fourth partial resource located in the downlink subband range, the step of transmitting the SRS to the base station based on the SRS resources in the second SRS resource set includes, but is not limited to, any of the following operations (a) to (e): (a) transmitting the SRS to the base station based on the third partial resource in the second-type SRS resource, and prohibiting SRS transmission to the base station based on the fourth partial resource in the second-type SRS resource;

[0035] (b) Transmitting an SRS to the base station based on a third partial resource within the second type of SRS resource, and transmitting an SRS to the base station based on a fourth partial resource within the second type of SRS resource.

[0036] (c) Prohibiting SRS transmission to the base station based on a third partial resource within the second type of SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second type of SRS resource.

[0037] (d) If the third partial resource within the second-type SRS resource includes two non-contiguous resources located on both sides of the downlink subband, transmit the SRS to the base station based on the two non-contiguous resources, and prohibit SRS transmission to the base station based on the fourth partial resource within the second-type SRS resource.

[0038] (e) If the third partial resource includes two non-contiguous resources located on both sides of the downlink subband, concatenate the two non-contiguous resources to obtain a continuous resource, and transmit SRS to the base station based on the continuous resource, and prohibit SRS transmission to the base station based on the fourth partial resource in the second type SRS resource.

[0039] In one embodiment, the step of transmitting the SRS to the base station based on the SRS resources in the third SRS resource set includes, but is not limited to, any of the following operations (a) to (b): (a) for each third-type SRS resource in the third SRS resource set, if the third-type SRS resource is located in an uplink slot or uplink symbol, transmitting the SRS to the base station based on the third-type SRS resource; (b) if the third-type SRS resource is located in a downlink slot, downlink symbol, flexible slot, or flexible symbol and is located within an uplink subband range of an SBFD time-frequency resource, transmitting the SRS to the base station based on the third-type SRS resource; and if the third-type SRS resource includes a fifth partial resource located within the uplink subband range and a sixth partial resource located outside the uplink subband range, transmitting the SRS to the base station based on the fifth partial resource and / or the sixth partial resource.

[0040] In one embodiment, transmitting an SRS to the base station based on the fifth partial resource and / or the sixth partial resource includes, but is not limited to, any of the following operations (a) to (e): (a) transmitting an SRS to the base station based on the fifth partial resource, and transmitting an SRS to the base station based on the sixth partial resource.

[0041] (b) Transmitting an SRS to the base station based on the fifth partial resource, and prohibiting SRS transmission to the base station based on the sixth partial resource.

[0042] (c) Prohibit SRS transmission to the base station based on the fifth partial resource, and prohibit SRS transmission to the base station based on the sixth partial resource.

[0043] (d) When the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, transmit the SRS to the base station based on the fifth partial resource and prohibit SRS transmission to the base station based on the sixth partial resource, or prohibit SRS transmission to the base station based on the fifth partial resource and prohibit SRS transmission to the base station based on the sixth partial resource. When the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, transmit the SRS to the base station based on the fifth partial resource and transmit SRS to the base station based on the sixth partial resource.

[0044] (e) receiving SRS transmission instruction information from the base station; if the SRS transmission instruction information permits SRS transmission using the sixth partial resources, transmitting the SRS to the base station based on the fifth partial resources, and also transmitting the SRS to the base station based on the sixth partial resources; if the SRS transmission instruction information does not permit SRS transmission using the sixth partial resources, transmitting the SRS to the base station based on the fifth partial resources, and prohibiting SRS transmission to the base station based on the sixth partial resources, or prohibiting SRS transmission to the base station based on the fifth partial resources, and also prohibiting SRS transmission to the base station based on the sixth partial resources;

[0045] In one embodiment, the base station further transmits SRS resource indication information to the user equipment, and the user equipment receives the SRS resource indication information from the base station, where the SRS resource indication information is information for instructing whether to allow or prohibit SRS transmission on an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

[0046] As can be seen from the above technical solution, the UE transmits SRS using the SRS resources in the SRS resource set. When the SBFD time-frequency resources and the SRS resources overlap, SRS transmission can be performed using the SBFD time-frequency resources. This improves the reliability of uplink data transmission, increases the cell coverage radius, enhances the accuracy of downlink beamforming, improves the real-time performance of beam tracking, reduces uplink / downlink interference caused by the introduction of SBFD time-frequency resources, and effectively integrates and implements the SBFD time-frequency resource configuration and SRS transmission mechanisms. From a system-wide perspective, this enables SRS transmission in TDD systems, improves resource utilization, enhances network coverage and capacity, increases uplink transmission resources and cell coverage range, reduces uplink transmission delay, and increases uplink transmission capacity.

[0047] The above technical solution of the present invention will be described below with reference to examples.

[0048] The TDD frame structure can be configured by a combination of semi-static settings and dynamic indication. In higher layer signaling, multiple SFCs (Slot Format Combinations) are defined by SFIs (Slot Format Indicators). For example, a base station can select slot formats that meet service requirements and add these slot formats to an SFC. For some slot formats, see Table 1. D stands for DL ​​symbol, U for UL symbol, and F for Flexible symbol. Each SFC is indicated by a fixed ID and includes one or more slot format types.

[0049] [Table 1]

[0050] After the SFI configuration is complete, the base station sends multiple slot format combinations to the UE via an RRC message. After multiple slot format combinations are configured via RRC signaling, the base station periodically notifies the UE of the SFC index currently used in DCI format 2_0 via the Physical Downlink Control Channel (PDCCH). If the UE correctly receives the DCI format 2_0 information, it determines the slot format for each slot within a given period based on the SFC index value. This completes the frame structure configuration by dynamic instruction between the base station and the UE, enabling uplink / downlink data transmission.

[0051] Resource allocation (taking downlink channel resource allocation as an example) can be classified into time domain resource allocation and frequency domain resource allocation. Time domain resource allocation: The "Time domain resource assignment" field in the DCI indicates the time domain location of the downlink channel. This field is 4 bits long and has a value between 0 and 15. When the value is m, m+1 indicates the row index of the time domain resource allocation table, and the information in this row indicates the time domain resource of the PDSCH (Physical Downlink Shared Channel). There are two ways to indicate this: (a) indicate three pieces of information: the slot offset between the PDSCH and the PDCCH that schedules it, the starting symbol of the PDSCH within the slot, and the duration symbol length of the PDSCH; or (b) indicate the slot offset between the PDSCH and the PDCCH that schedules it and one SLIV (Start and Length Indicator Value) value, and the user equipment calculates the starting symbol and the number of duration symbols of the PDSCH based on the SLIV value.

[0052] Frequency domain resource assignment: The "Frequency domain resource assignment" field in the DCI indicates the frequency domain resource assignment of the downlink channel. PDSCH frequency domain resource assignment is classified into Type 0 and Type 1. Type 0 supports non-contiguous resource assignment, achieving frequency diversity gain. Type 1 supports contiguous resource assignment, reducing the number of bits required for this field. DCI format 1_0 only supports Type 1. Type 0: In the non-contiguous resource assignment type, one RBG (Resource Block Group) is one VRB (Virtual Resource Block) group consisting of P contiguous VRBs, where P is determined by the higher layer parameters rbg-size and BWP (Bandwidth Part) bandwidth. When the resource assignment type is Type 0, the frequency domain resource assignment is a bitmap that indicates which RBG is assigned to the downlink channel. Each bit in the bitmap represents one RBG, with the most significant bit corresponding to RBG0. By analogy, a bit of 1 indicates that the RBG is allocated to the downlink channel, and a bit of 0 indicates that it is a non-downlink channel resource. Type 1: The frequency domain resource indication field is not used as a bitmap and indicates one RIV (Resource Indicator Value) value. The user equipment calculates the starting RB (Resource Block) and the number of occupied RBs of the downlink channel based on this value.

[0053] In a TDD system, the frame structure is classified into UL slots, DL slots, and flexible slots according to slots. Symbols in a flexible slot may be set to UL symbols, DL symbols, and F (Flexible) symbols. The F symbol can be used for UL, DL, or GP. Here, uplink data may be transmitted in a UL slot, or in a UL symbol or F symbol in a flexible slot. Uplink data cannot be transmitted in a DL slot, nor can it be transmitted in a DL symbol in a flexible slot. Similarly, downlink data may be transmitted in a DL slot, or in a DL symbol or F symbol in a flexible slot. Downlink data cannot be transmitted in a UL slot, nor can it be transmitted in a UL symbol in a flexible slot.

[0054] Full-duplex communication may be achieved using the SBFD scheme, i.e., SBFD time-frequency resources are configured in time-frequency resources (e.g., UL slots, DL slots, and flexible slots). This allows data transmission in a different direction from other time-frequency resources at the same time using the SBFD time-frequency resources. For example, by configuring the SBFD time-frequency resources in the DL slots and transmitting uplink data via the SBFD time-frequency resources, the uplink data is transmitted in the DL slots. By configuring the SBFD time-frequency resources in the DL symbols of the flexible slots and transmitting uplink data via the SBFD time-frequency resources, the uplink data is transmitted in the DL symbols of the flexible slots. By configuring the SBFD time-frequency resources in the UL slots and transmitting downlink data via the SBFD time-frequency resources, the downlink data is transmitted in the UL slots. By configuring the SBFD time-frequency resources in the UL symbols of the flexible slots and transmitting downlink data via the SBFD time-frequency resources, the downlink data is transmitted in the UL symbols of the flexible slots.

[0055] In one embodiment, the SBFD time-frequency resource may be a time-frequency resource corresponding to an SBFD slot or an SBFD symbol. The SBFD symbol may be defined as a symbol for which an SBFD sub-band can be configured for a base station and a UE. In the SBFD sub-bands (referred to as SBFD time-frequency resources) of these SBFD symbols, the base station and the UE may perform full-duplex communication. That is, uplink transmission, downlink transmission, or simultaneous uplink / downlink transmission can be performed in the SBFD time-frequency resource. Here, the SBFD time-frequency resource may be explicitly designated as uplink, downlink, or flexible. If the SBFD time-frequency resource is designated as flexible, uplink or downlink scheduling can be performed via the SBFD time-frequency resource. If the SBFD time-frequency resource is not explicitly designated, it means flexible and can be used for uplink or downlink data transmission. Here, the configuration of the SBFD slot or SBFD symbol may include the symbol to be used for SBFD transmission among the symbols in the DL slot, UL slot, and flexible slot, the implementation period, the starting point, etc. For convenience of explanation, in the following embodiments, a case will be described in which the SBFD time-frequency resource is a time-frequency resource corresponding to the SBFD slot.

[0056] In one embodiment, SBFD designated as uplink is referred to as UL-SBFD, i.e., SBFD time-frequency resources are used for uplink. SBFD designated as downlink is referred to as DL-SBFD, i.e., SBFD time-frequency resources are used for downlink. To support FD communication, SBFD time-frequency resources may be configured in either a semi-static manner (e.g., configured by RRC (Radio Resource Control) signaling) or a dynamic manner (e.g., configured by DCI (Downlink Control Information)).

[0057] SBFD time-frequency resources may be configured for DL ​​symbols, flexible symbols, and UL symbols. Symbols configured with SBFD time-frequency resources are called SBFD symbols, and symbols not configured with SBFD time-frequency resources are called normal symbols. That is, non-SBFD symbols such as UL symbols, DL symbols, and flexible symbols are called normal symbols. SBFD may be configured for some symbols in a slot. That is, within one slot, some symbols are configured as SBFD symbols, and the rest are normal symbols. This allows DL or UL data transmission to span normal symbols or SBFD symbols.

[0058] In one embodiment, a UE transmits an SRS to a base station, and the SRS is used to measure the channel quality of the uplink frequency band. In TDD full-duplex mode, an SRS resource allocation method is provided. After configuring an SBFD time-frequency resource, if the SRS resource and the SBFD time-frequency resource overlap, the method defines an SRS transmission method between the UE and the base station, allowing the SRS resource to be configured simultaneously in both an SBFD slot / SBFD symbol and a non-SBFD slot / non-SBFD symbol (i.e., a normal slot / normal symbol). This allows the UE and the base station to transmit an SRS in either an SBFD slot or an SBFD symbol. Specific cases are described below.

[0059] Case 1: A dedicated SRS resource set is configured for the SBFD slot or SBFD symbol. This SRS resource set is referred to as a first SRS resource set.

[0060] As shown in Figure 2, a schematic diagram of configuring SRS resource sets for SBFD slots or SBFD symbols is shown. SRS resource set 1 is the first SRS resource set configured for SBFD slots or SBFD symbols. SRS resource set 2 is the second SRS resource set configured for non-SBFD slots or non-SBFD symbols.

[0061] As shown in FIG. 2, SBFD time-frequency resources may be configured in DL slots and / or flexible slots, and the DL slots and / or flexible slots configured with SBFD time-frequency resources are referred to as SBFD slots. Alternatively, SBFD time-frequency resources may be configured in DL symbols and / or flexible symbols, and the DL symbols and / or flexible symbols configured with SBFD time-frequency resources are referred to as SBFD symbols. Here, the SBFD time-frequency resources in the SBFD slots or SBFD symbols are designated to be used for the uplink. That is, the SBFD time-frequency resources are uplink subbands (UL subbands). Based on this, SRS resources may be configured in the uplink subbands of the SBFD time-frequency resources. That is, SRS resource set 1 includes multiple SRS resources, and for ease of distinction, these SRS resources are referred to as first-type SRS resources. The multiple first-type SRS resources overlap with the uplink subbands of the SBFD time-frequency resources.

[0062] As shown in Figure 2, the SRS resource may be set in an uplink slot or uplink symbol. That is, SRS resource set 2 includes multiple SRS resources, which are referred to as second-type SRS resources for ease of distinction, and the multiple second-type SRS resources are located in uplink slots or uplink symbols.

[0063] Referring to the above scenario, the base station allocates SRS resource set 1 and SRS resource set 2 to the UE. SRS resource set 1 includes multiple first-type SRS resources that overlap with uplink subbands of the SBFD time-frequency resource, and SRS resource set 2 includes multiple second-type SRS resources located in uplink slots or uplink symbols.

[0064] The base station transmits first configuration information corresponding to SRS resource set 1 and second configuration information corresponding to SRS resource set 2 to the UE. After receiving the first configuration information and the second configuration information, the UE determines SRS resource set 1 based on the first configuration information and determines SRS resource set 2 based on the second configuration information. Note that the first configuration information and the second configuration information may be transmitted separately or simultaneously, and the transmission method may be flexibly configured. The first configuration information may be resource configuration information based on a dynamic scheme or semi-static scheme. The second configuration information may be resource configuration information based on a dynamic scheme or semi-static scheme.

[0065] In one embodiment, after the UE acquires SRS resource set 1, it transmits the SRS to the base station based on the first type of SRS resource in SRS resource set 1, and the base station receives the SRS transmitted from the UE based on the first type of SRS resource in SRS resource set 1. After the UE acquires SRS resource set 2, it transmits the SRS to the base station based on the second type of SRS resource in SRS resource set 2, and the base station receives the SRS transmitted from the UE based on the second type of SRS resource in SRS resource set 2.

[0066] In one embodiment, the first-type SRS resource in SRS resource set 1 is required not to exceed the uplink subband range of the SBFD time-frequency resources. That is, the first-type SRS resource is located entirely within the uplink subband range of the SBFD time-frequency resources. In other words, the first-type SRS resource is narrower than the uplink subband of the SBFD time-frequency resources. This constraint may reduce the scheduling flexibility of the base station. When frequency hopping is not configured and only a single SRS resource set 1 is configured, some physical resource blocks (PRBs) of the uplink subband may not be covered by the SRS resource. This may reduce the accuracy of downlink beamforming by the base station, making it difficult to accurately capture the channel conditions of these PRBs.

[0067] To address the above-mentioned problems, the base station and the UE may acquire a preset target bandwidth setting list. For example, the base station generates a target bandwidth setting list and sends the target bandwidth setting list to the UE. Alternatively, the base station and the UE may set a target bandwidth setting list by default. The acquisition method is not limited to these.

[0068] Here, the target bandwidth setting list is generated based on the initial bandwidth setting list. For example, if the number of PRBs between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list. The number of PRBs between the first and intermediate physical layer resources is equal to or less than the predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than the predetermined threshold.

[0069] For example, if the predetermined threshold is 4, and the number of PRBs between two adjacent physical layer resources (referred to as the first physical layer resource and the second physical layer resource) is greater than 4 and less than or equal to 8, one intermediate physical layer resource is inserted between the first physical layer resource and the second physical layer resource. In this case, the number of PRBs between the first physical layer resource and the intermediate physical layer resource is less than or equal to 4, and the number of PRBs between the intermediate physical layer resource and the second physical layer resource is less than or equal to 4. Furthermore, if the number of PRBs between the first physical layer resource and the second physical layer resource is greater than 8, at least two or more (e.g., two or three) intermediate physical layer resources are inserted between the first physical layer resource and the second physical layer resource so that the number of PRBs between the two adjacent physical layer resources is less than or equal to 4. After performing the above processing on the initial bandwidth configuration list, a target bandwidth configuration list is obtained. When the base station and the UE perform processing based on the target bandwidth configuration list, even if the first type of SRS resource is within the uplink subband range of the SBFD time-frequency resource, the impact on the base station's channel state assessment and downlink beamforming is negligible.

[0070] When performing processing based on the target bandwidth configuration list, the base station may transmit first configuration information and second configuration information to the UE based on the target bandwidth configuration list, that is, the SRS resource indicated by the first configuration information must satisfy the bandwidth requirement of the target bandwidth configuration list, and the SRS resource indicated by the second configuration information must satisfy the bandwidth requirement of the target bandwidth configuration list. Note that the transmission method is not limited to these.

[0071] When performing processing based on the target bandwidth configuration list, the UE may transmit an SRS to the base station based on the target bandwidth configuration list. For example, if a first type SRS resource in a first SRS resource set is located within an uplink subband range of the SBFD time-frequency resource, the UE may transmit an SRS to the base station based on the first type SRS resource in the first SRS resource set and the target bandwidth configuration list.

[0072] Now, referring to Table 2, an example of an initial bandwidth setting list is shown.

[0073] [Table 2-1] [Table 2-2]

[0074] In the initial bandwidth setting list, the number of PRBs between physical layer resource 40 and physical layer resource 48 is equal to 8, so physical layer resource 44 is inserted between the two resources. The number of PRBs between physical layer resource 40 and physical layer resource 44 is equal to 4, and the number of PRBs between physical layer resource 44 and physical layer resource 48 is equal to 4. Physical layer resource 44 may be placed at the end of the existing 64 physical layer resource setting. Similarly, physical layer resource 68 may be inserted between physical layer resource 64 and physical layer resource 72, and physical layer resource 68 may be placed at the end of the existing 64 physical layer resource setting. Physical layer resource 84 may be inserted between physical layer resource 80 and physical layer resource 88, and physical layer resource 84 may be placed at the end of the existing 64 physical layer resource setting. In this way, by inserting multiple physical layer resources into the initial bandwidth setting list, a target bandwidth setting list can be obtained. An example of a target bandwidth setting list is shown in Table 3. Of course, in this embodiment, the number of physical layer resources to be inserted is three as an example, but the number of physical layer resources to be inserted may be greater than this and is not limited to this.

[0075] [Table 3]

[0076] In Tables 2 and 3, C SRS is the sequence number of the physical layer resource configuration, B SRS is the transmission bandwidth setting (i.e., four types of transmission bandwidth setting values: B SRS = 0, 1, 2, 3 exist), m SRSis the SRS single transmission bandwidth, and N is the number of frequency hopping. The processing method using Tables 2 and 3 is not limited in this embodiment.

[0077] In one embodiment, for a first-type SRS resource in SRS resource set 1, the first-type SRS resource is permitted to be located outside the uplink subband range of the SBFD time-frequency resource. That is, the first-type SRS resource configured by the base station is permitted to be larger than the uplink subband range of the SBFD time-frequency resource (within a DL / F slot or symbol). That is, the first-type SRS resource includes a first partial resource located within the uplink subband range of the SBFD time-frequency resource and a second partial resource located outside the uplink subband range of the SBFD time-frequency resource. Based on this, the UE may transmit an SRS to the base station based on the first-type SRS resource in the first SRS resource set, including, but not limited to, the following:

[0078] Method 11: The UE transmits an SRS to the base station based on a first partial resource within the first type of SRS resource, and transmits an SRS to the base station based on a second partial resource within the first type of SRS resource.

[0079] For example, when the SBFD time-frequency resource is located in a downlink slot / symbol or a flexible slot / symbol, the UE is permitted to transmit an SRS on a resource outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits the SRS to the base station based on the first partial resource and the second partial resource in the first type of SRS resource. For example, the UE transmits the SRS to the base station by referring to the initial bandwidth setting list or the target bandwidth setting list based on the first partial resource and the second partial resource in the first type of SRS resource.

[0080] Method 12: The UE transmits an SRS to the base station based on a first partial resource within the first type of SRS resource, and prohibits SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

[0081] For example, if the SBFD time-frequency resource is located in a downlink slot / symbol or a flexible slot / symbol, the UE is not allowed to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource, in which case the UE transmits SRS to the base station based on a first partial resource within the first type of SRS resource and is prohibited from transmitting SRS to the base station based on a second partial resource within the first type of SRS resource.

[0082] Method 13: The UE prohibits SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibits SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

[0083] For example, if the first type SRS resource includes a second partial resource located outside the uplink subband range of the SBFD time-frequency resource, it is regarded as a configuration error, and the base station is prohibited from transmitting the SRS.

[0084] Manner 14: When the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, the UE transmits an SRS to the base station based on a first partial resource within the first-type SRS resource and prohibits SRS transmission to the base station based on a second partial resource within the first-type SRS resource. Alternatively, the UE prohibits SRS transmission to the base station based on the first partial resource within the first-type SRS resource and prohibits SRS transmission to the base station based on a second partial resource within the first-type SRS resource. Alternatively, when the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, the UE transmits an SRS to the base station based on a first partial resource within the first-type SRS resource and transmits SRS to the base station based on a second partial resource within the first-type SRS resource.

[0085] For example, if the SBFD time-frequency resource is located in a downlink slot or downlink symbol, the UE is not permitted to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits SRS to the base station based on a first partial resource within the first-type SRS resource and prohibits SRS transmission to the base station based on a second partial resource within the first-type SRS resource. Alternatively, the UE prohibits SRS transmission to the base station based on the first and second partial resources within the first-type SRS resource. Alternatively, if the SBFD time-frequency resource is located in a flexible slot or flexible symbol, the UE is permitted to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits SRS to the base station based on a first partial resource within the first-type SRS resource and prohibits SRS transmission to the base station based on a second partial resource within the first-type SRS resource.

[0086] Manner 15: The UE receives SRS transmission instruction information from the base station. If the SRS transmission instruction information allows SRS transmission on the second partial resources, the UE transmits the SRS to the base station based on the first partial resources of the first-type SRS resources and transmits the SRS to the base station based on the second partial resources of the first-type SRS resources. Alternatively, if the SRS transmission instruction information does not allow SRS transmission on the second partial resources, the UE transmits the SRS to the base station based on the first partial resources of the first-type SRS resources and prohibits SRS transmission to the base station based on the second partial resources of the first-type SRS resources. Alternatively, the UE prohibits SRS transmission to the base station based on the first partial resources of the first-type SRS resources and prohibits SRS transmission to the base station based on the second partial resources of the first-type SRS resources.

[0087] For example, the base station may use signaling (1- or 2-bit signaling, referred to as SRS transmission indication information) to indicate to the UE whether to allow SRS transmission on resources outside the uplink subband range of the SBFD time-frequency resources. For example, the base station may transmit the SRS transmission indication information to the UE via a DCI message, or may transmit the SRS transmission indication information to the UE via a MAC Control Element (CE) message, or may transmit the SRS transmission indication information to the UE via an RRC message.

[0088] When the SBFD time-frequency resource is located in a downlink slot / symbol or a flexible slot / symbol, if the SRS transmission instruction information allows the UE to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource, the UE transmits the SRS to the base station based on the first partial resource and the second partial resource of the first-type SRS resource. If the SRS transmission instruction information does not allow the UE to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource, the UE transmits the SRS to the base station based on the first partial resource of the first-type SRS resource and prohibits SRS transmission to the base station based on the second partial resource of the first-type SRS resource, or the UE prohibits SRS transmission to the base station based on the first partial resource and the second partial resource.

[0089] In one embodiment, for Schemes 12, 14, and 15, when the UE is not permitted to transmit an SRS on resources outside the uplink subband range of the SBFD time-frequency resources, that is, when the UE transmits an SRS to the base station based on the first partial resource and is prohibited from transmitting an SRS to the base station based on the second partial resource, the transmission power of the SRS may be further controlled. For example, the transmission power of the SRS may be controlled in the following manner:

[0090] Scheme 21: The UE determines a target transmission power based on the maximum transmission power, and transmits the SRS to the base station based on a first partial resource within the first type of SRS resource under the target transmission power.

[0091] For example, the maximum transmission power is denoted as SRS Pmax. SRS Pmax is the transmission power corresponding to the first type of SRS resource (the first partial resource and the second partial resource). In scheme 21, the SRS is transmitted based on SRS Pmax, which increases the SRS transmission power and expands the uplink coverage range.

[0092] Scheme 22: The UE determines a target transmission power based on the maximum transmission power and a resource ratio, and transmits an SRS to the base station based on a first partial resource in the first-type SRS resource under the target transmission power, where the resource ratio may be a resource ratio between the first partial resource and the first-type SRS resource.

[0093] For example, the resource ratio is assumed to be available PRB / total allocated PRB, where available PRB represents the number of PRBs occupied by the first partial resource, and total allocated PRB represents the number of PRBs occupied by the first type of SRS resource (the first partial resource and the second partial resource). In scheme 22, SRS is transmitted based on SRS Pmax × (available PRB / total allocated PRB), which reduces interference to the downlink channel.

[0094] Method 23: The UE receives transmission power instruction information from the base station, and if the transmission power instruction information is first instruction information, determines a target transmission power based on the maximum transmission power, and if the transmission power instruction information is second instruction information, determines the target transmission power based on the maximum transmission power and the resource ratio.

[0095] For example, the base station may instruct the UE on how to determine the target transmission power by signaling (1-bit signaling, which is referred to as transmission power instruction information). For example, the base station may transmit the transmission power instruction information to the UE via a DCI message, or may transmit the transmission power instruction information to the UE via a MAC CE message, or may transmit the transmission power instruction information to the UE via an RRC message.

[0096] When the transmission power instruction information is first instruction information (for example, a first value, 0), the first instruction information indicates that the target transmission power is determined based on the maximum transmission power, and the UE transmits the SRS based on the SRS Pmax.

[0097] Alternatively, if the transmission power instruction information is second instruction information (e.g., second value, 1), the second instruction information indicates that the target transmission power is determined based on the maximum transmission power and the resource ratio, and the UE transmits the SRS based on SRS Pmax × (available PRB / total allocated PRB).

[0098] In one embodiment, for a second-type SRS resource in SRS resource set 2, the second-type SRS resource may be set to an UL slot or an UL symbol. If there is no SBFD time-frequency resource in the UL slot or the UL symbol, the UE transmits the SRS to the base station based on the second-type SRS resource.

[0099] If an SBFD time-frequency resource exists in a UL slot or UL symbol, the SBFD time-frequency resource is indicated to be used for the downlink (i.e., the SBFD time-frequency resource is a downlink subband (DL subband)), and the second type SRS resource does not overlap with the downlink subband of the SBFD time-frequency resource, the UE transmits SRS to the base station based on the second type SRS resource.

[0100] In one embodiment, a schematic diagram of configuring an SRS resource set for an UL slot or an UL symbol is shown in Figure 3. When an SBFD time-frequency resource exists in an UL slot or an UL symbol, the SBFD time-frequency resource is indicated to be used for the downlink (i.e., the SBFD time-frequency resource is a downlink subband), and a second-type SRS resource overlaps with the downlink subband of the SBFD time-frequency resource (i.e., the second-type SRS resource includes a third partial resource located outside the downlink subband range and a fourth partial resource located within the downlink subband range), the UE may transmit an SRS to the base station based on the second-type SRS resource in the second SRS resource set, including but not limited to the following manners:

[0101] Method 31: The UE transmits an SRS to the base station based on a third partial resource within the second type of SRS resource, and prohibits SRS transmission to the base station based on a fourth partial resource within the second type of SRS resource.

[0102] For example, if the UE is not permitted to transmit SRS on the downlink subband of the SBFD time-frequency resource, i.e., if it transmits only a partial SRS, it transmits SRS to the base station based on the third partial resource within the second type of SRS resource, and prohibits SRS transmission to the base station based on the fourth partial resource within the second type of SRS resource.

[0103] Method 32: The UE transmits an SRS to the base station based on a third partial resource within the second type of SRS resource, and transmits an SRS to the base station based on a fourth partial resource within the second type of SRS resource.

[0104] For example, when the UE is permitted to transmit SRS in the downlink subband of the SBFD time-frequency resource, i.e., when all SRS transmissions, SRS transmissions within the downlink subband range of the SBFD time-frequency resource, are permitted, the UE transmits SRS to the base station based on the third partial resource and the fourth partial resource in the second type of SRS resource.

[0105] Method 33: The UE prohibits SRS transmission to the base station based on the third partial resource within the second type SRS resource, and prohibits SRS transmission to the base station based on the fourth partial resource within the second type SRS resource.

[0106] For example, if the second type SRS resource includes a fourth partial resource located within the downlink subband range, it is considered a configuration error, and the UE prohibits SRS transmission to the base station based on the second type SRS resource.

[0107] Scheme 34: If the third partial resource includes two non-contiguous resources located on both sides of the downlink subband, the UE concatenates these two non-contiguous resources to obtain a continuous resource, transmits SRS to the base station based on the continuous resource, and prohibits SRS transmission to the base station based on the fourth partial resource in the second type SRS resource.

[0108] For example, refer to Figure 4, which shows a schematic diagram of non-contiguous SRS resources. The third partial resource includes a resource located at the upper side of the downlink subband (referred to as resource a1) and a resource located at the lower side of the downlink subband (referred to as resource a2), where resource a1 and resource a2 are two non-contiguous resources. In this case, the UE concatenates resource a1 and resource a2, i.e., removes the resource of the downlink subband, to obtain a continuous resource including resource a1 and resource a2. Then, the UE transmits an SRS to the base station based on the continuous resource.

[0109] Here, the base station and the UE may configure a resource connection indication in advance, which is used to indicate whether to perform resource connection. Alternatively, the base station may send a resource connection indication to the UE, which is used to indicate whether to perform resource connection. If the resource connection indication indicates to perform resource connection, the UE connects two non-contiguous resources to obtain a continuous resource and transmits an SRS to the base station based on the continuous resource. If the resource connection indication indicates not to perform resource connection, the UE transmits an SRS to the base station based on the two non-contiguous resources and does not connect the two non-contiguous resources.

[0110] Scheme 35: If the third partial resource in the second type SRS resource includes two non-contiguous resources located on both sides of the downlink subband, the UE transmits the SRS to the base station based on these two non-contiguous resources, and prohibits SRS transmission to the base station based on the fourth partial resource in the second type SRS resource.

[0111] For example, referring to Figure 4, the third resource portion includes resource a1 located above the downlink subband and resource a2 located below the downlink subband, where resource a1 and resource a2 are two non-contiguous resources. Based on this, SRS non-contiguous resource allocation can be performed. That is, the UE transmits SRS to the base station based on the two non-contiguous resources. Here, the signaling design that allows the two SRS frequency domain resource configurations is as follows:

[0112] SRS-ResourceSet ::= SEQUENCE { srs-ResourceSetId SRS-ResourceSetId, freqDomainPosition-1 INTEGER (0..67), freqDomainShift-1 INTEGER (0..268), freqHopping-1 SEQUENCE { c-SRS INTEGER (0..63), b-SRS INTEGER (0..3), b-hop INTEGER (0..3) freqDomainPosition-2 INTEGER (0..67), freqDomainShift-2 INTEGER (0..268), freqHopping-2 SEQUENCE { c-SRS INTEGER (0..63), b-SRS INTEGER (0..3), b-hop INTEGER (0..3) }

[0113] In the above signaling design, the locations of two non-contiguous resources (eg, resource a1 and resource a2) can be indicated, and the SRS is transmitted based on the location of resource a1, and the SRS is transmitted based on the location of resource a2.

[0114] The above-mentioned schemes 31, 32, 33, 34, and 35 can be flexibly switched by signaling. For example, the base station sends signaling to the UE to instruct the UE to process using scheme 31, or to process using scheme 32, or to process using scheme 33, or to process using scheme 34, or to process using scheme 35.

[0115] In one embodiment, when the UE transmits an SRS to the base station based on the third partial resource and SRS transmission to the base station based on the fourth partial resource is prohibited, the UE may control the transmission power of the SRS. For example, the UE determines a target transmission power based on the maximum transmission power (the transmission power corresponding to the second type of SRS resource) and transmits the SRS to the base station based on the third partial resource under the target transmission power.

[0116] Alternatively, the UE determines a target transmission power based on the maximum transmission power and a resource ratio, and transmits the SRS to the base station based on the third partial resource under the target transmission power, where the resource ratio may be the resource ratio between the third partial resource and the second type of SRS resource.

[0117] Alternatively, the UE receives transmission power instruction information from the base station, and if the transmission power instruction information is first instruction information, determines a target transmission power based on the maximum transmission power, and if the transmission power instruction information is second instruction information, determines a target transmission power based on the maximum transmission power and the resource ratio, and transmits an SRS to the base station based on the third partial resource under the target transmission power.

[0118] Case 2: A single SRS resource set is configured for SBFD slots / SBFD symbols and non-SBFD slots / non-SBFD symbols. This SRS resource set is referred to as the third SRS resource set.

[0119] FIG. 5 is a schematic diagram illustrating configuration of SRS resource sets for SBFD slots / SBFD symbols and non-SBFD slots / non-SBFD symbols. SRS resource set 3 is a third SRS resource set. The SBFD time-frequency resources include uplink subbands, and SRS resources are configured in the uplink subbands of the SBFD time-frequency resources. That is, SRS resource set 3 includes multiple third-type SRS resources, and the third-type SRS resources overlap with the uplink subbands of the SBFD time-frequency resources. And / or, SRS resources are configured in UL slots or UL symbols. That is, SRS resource set 3 includes multiple third-type SRS resources, and the third-type SRS resources are located in uplink slots or uplink symbols.

[0120] In the above scenario, the base station allocates SRS resource set 3 to the UE, where SRS resource set 3 includes multiple third-type SRS resources overlapping with uplink subbands of the SBFD time-frequency resource and / or SRS resource set 3 includes multiple third-type SRS resources located in uplink slots or uplink symbols.

[0121] The base station sends third configuration information corresponding to SRS resource set 3 to the UE. After receiving the third configuration information, the UE determines SRS resource set 3 based on the third configuration information. The third configuration information is dynamic resource configuration information or semi-static resource configuration information. After obtaining SRS resource set 3, the UE transmits SRS to the base station based on the third type SRS resource in SRS resource set 3, and the base station receives SRS based on the third type SRS resource in SRS resource set 3.

[0122] In one embodiment, the plurality of third-type SRS resources in SRS resource set 3 may be contiguous SRS resources. Referring to Figure 6A, a schematic diagram illustrating a case where the plurality of third-type SRS resources are contiguous SRS resources is shown. The plurality of third-type SRS resources in SRS resource set 3 may be non-contiguous SRS resources located in different slots. Referring to Figure 6B, a schematic diagram illustrating a case where the plurality of third-type SRS resources are non-contiguous SRS resources is shown.

[0123] In one embodiment, for each third-type SRS resource in the third SRS resource set, if the third-type SRS resource is located in an uplink slot or an uplink symbol, the SRS transmission method based on the third-type SRS resource can refer to the SRS transmission method based on the second-type SRS resource.

[0124] For example, if there is no SBFD time-frequency resource in an uplink slot or an uplink symbol, the UE transmits an SRS to the base station based on the third type of SRS resource.

[0125] Alternatively, if an SBFD time-frequency resource exists in the uplink slot or uplink symbol, the SBFD time-frequency resource includes a downlink subband, and the third type SRS resource does not overlap with the downlink subband of the SBFD time-frequency resource, the UE transmits an SRS to the base station based on the third type SRS resource.

[0126] Alternatively, if an SBFD time-frequency resource exists in an uplink slot or an uplink symbol, the SBFD time-frequency resource includes a downlink subband, and the third type of SRS resource overlaps with the downlink subband of the SBFD time-frequency resource, the UE transmits the SRS to the base station using any of Scheme 31, Scheme 32, Scheme 33, Scheme 34, or Scheme 35, which will not be repeated here.

[0127] In one embodiment, for each third-type SRS resource in the third SRS resource set, if the third-type SRS resource is located in a downlink slot, downlink symbol, flexible slot, or flexible symbol and is located within the uplink subband range of the SBFD time-frequency resource, i.e., if the third-type SRS resource does not exceed the uplink subband range of the SBFD time-frequency resource, in other words, if the third-type SRS resource has a narrower bandwidth than the uplink subband of the SBFD time-frequency resource, the UE transmits the SRS to the base station based on the third-type SRS resource. For example, the UE transmits the SRS to the base station based on the third-type SRS resource by referring to the target bandwidth setting list.

[0128] In one embodiment, for each third-type SRS resource in the third SRS resource set, if the third-type SRS resource is located in a downlink slot, a downlink symbol, a flexible slot, or a flexible symbol and exceeds the uplink subband range of the SBFD time-frequency resource, that is, if the third-type SRS resource includes a fifth partial resource located within the uplink subband range and a sixth partial resource located outside the uplink subband range, the UE transmits the SRS to the base station based on the fifth partial resource and / or the sixth partial resource.

[0129] Scheme 41: The UE transmits an SRS to the base station based on a fifth partial resource within the third type SRS resource, and transmits an SRS to the base station based on a sixth partial resource within the third type SRS resource.

[0130] For example, if the SBFD time-frequency resource is located in a downlink slot / symbol or a flexible slot / symbol, the UE is allowed to transmit the SRS on a resource outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits the SRS to the base station based on the fifth and sixth partial resources.

[0131] Method 42: The UE transmits an SRS to the base station based on a fifth partial resource within the third type SRS resource, and prohibits SRS transmission to the base station based on a sixth partial resource within the third type SRS resource.

[0132] For example, if the SBFD time-frequency resource is located in a downlink slot / symbol or a flexible slot / symbol, the UE is not allowed to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits SRS to the base station based on the fifth partial resource in the third-type SRS resource, and is prohibited from transmitting SRS to the base station based on the sixth partial resource in the third-type SRS resource.

[0133] Method 43: The UE prohibits SRS transmission to the base station based on the fifth partial resource within the third type SRS resource, and prohibits SRS transmission to the base station based on the sixth partial resource within the third type SRS resource.

[0134] For example, if the third type SRS resource includes a sixth partial resource located outside the uplink subband range of the SBFD time-frequency resource, it is regarded as a configuration error, and the base station is prohibited from transmitting the SRS.

[0135] Scheme 44: When the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, the UE transmits the SRS to the base station based on the fifth partial resource and prohibits the SRS transmission to the base station based on the sixth partial resource. Alternatively, the UE prohibits the SRS transmission to the base station based on the fifth partial resource and prohibits the SRS transmission to the base station based on the sixth partial resource. Alternatively, when the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, the UE transmits the SRS to the base station based on the fifth partial resource and transmits the SRS to the base station based on the sixth partial resource.

[0136] For example, when the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, the UE is not allowed to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resource. In this case, the UE transmits SRS to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource. Alternatively, the UE prohibits SRS transmission to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource.

[0137] Alternatively, if the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, the UE is allowed to transmit the SRS on a resource outside the uplink subband range of the SBFD time-frequency resource, in which case the UE transmits the SRS to the base station based on the fifth partial resource and the sixth partial resource.

[0138] Scheme 45: The UE receives SRS transmission instruction information from the base station. If the SRS transmission instruction information allows SRS transmission on the sixth partial resource, the UE transmits the SRS to the base station based on the fifth partial resource and transmits the SRS to the base station based on the sixth partial resource. Alternatively, if the SRS transmission instruction information does not allow SRS transmission on the sixth partial resource, the UE transmits the SRS to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource; alternatively, the UE prohibits SRS transmission to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource.

[0139] For example, the base station may use signaling (1- or 2-bit signaling, referred to as SRS transmission indication information) to indicate to the UE whether to allow SRS transmission on resources outside the uplink subband range of the SBFD time-frequency resources. For example, the base station may send the SRS transmission indication information to the UE via a DCI message, a MAC CE message, or an RRC message. If the SRS transmission indication information allows the UE to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resources, the UE transmits the SRS to the base station based on the fifth and sixth partial resources. If the SRS transmission indication information does not allow the UE to transmit SRS on resources outside the uplink subband range of the SBFD time-frequency resources, the UE transmits the SRS to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource, or the UE prohibits SRS transmission to the base station based on the fifth partial resource and prohibits SRS transmission to the base station based on the sixth partial resource.

[0140] In one embodiment, if the UE is not permitted to transmit the SRS on resources outside the uplink subband range of the SBFD time-frequency resources, the transmission power of the SRS may be further controlled.

[0141] For example, the UE determines a target transmission power based on the maximum transmission power, and transmits an SRS to the base station based on the fifth partial resource under the target transmission power.

[0142] Alternatively, the UE determines a target transmission power based on the maximum transmission power and a resource ratio, and transmits the SRS to the base station based on the fifth partial resource under the target transmission power, where the resource ratio may be a resource ratio between the fifth partial resource and the third-type SRS resource.

[0143] Alternatively, the UE receives transmission power instruction information from the base station, and if the transmission power instruction information is first instruction information, determines a target transmission power based on the maximum transmission power, and if the transmission power instruction information is second instruction information, determines a target transmission power based on the maximum transmission power and the resource ratio, and transmits an SRS to the base station based on the fifth partial resource under the target transmission power.

[0144] In one embodiment, the base station further transmits SRS resource indication information to the UE, and the UE receives the SRS resource indication information. The SRS resource indication information is information for instructing whether to allow or prohibit SRS transmission on SRS resources overlapping with uplink subbands of the SBFD time-frequency resources. If SRS transmission on SRS resources overlapping with uplink subbands of the SBFD time-frequency resources is prohibited, the UE does not perform SRS transmission on the SRS resources overlapping with the uplink subbands.

[0145] For example, for aperiodic, semi-persistent, and periodic SRS transmission processes, the base station may use one bit of signaling (i.e., SRS resource indication information) to indicate whether SRS transmission is permitted on SRS resources overlapping with uplink subbands of SBFD time-frequency resources. For example, if the bit is 1, SRS transmission is permitted, and if the bit is 0, SRS transmission is not permitted. This reduces the processing complexity of the UE.

[0146] From the above technical solution, it is clear that the UE uses the SRS resources in the SRS resource set to transmit SRS. When the SBFD time-frequency resources and the SRS resources overlap, the SBFD time-frequency resources can be used to transmit SRS. This improves the reliability of uplink data transmission, increases the cell coverage radius, enhances the accuracy of downlink beamforming, improves the real-time performance of beam tracking, reduces uplink / downlink interference caused by the introduction of SBFD time-frequency resources, and effectively integrates and implements the SBFD time-frequency resource configuration and SRS transmission mechanism. From the overall system perspective, this enables SRS transmission in TDD systems, improves resource utilization, enhances network coverage and capacity, increases uplink transmission resources and cell coverage range, reduces uplink transmission delay, and increases uplink transmission capacity.

[0147] Based on the same inventive concept, an SRS transmission device, a base station, and a UE corresponding to the above SRS transmission method are also provided. Because the principle by which the base station and the UE solve the problem is similar to that of the SRS transmission method, the implementation of the base station and the UE can refer to the implementation of the SRS transmission method, and will not be repeated in this specification.

[0148] Based on the same application concept as the above method, one embodiment of the present invention provides an SRS transmission device applied to a user device. Referring to Figure 7A, the device includes: a receiving module 711 configured to receive SRS resource configuration information sent from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources; a transmitting module 712 configured to transmit an SRS to a base station based on the SRS resources in the SRS resource set.

[0149] In one embodiment, the SRS resource configuration information includes first configuration information of a first SRS resource set and second configuration information of a second SRS resource set; the first configuration information is information for indicating a first SRS resource set, and the second configuration information is information for indicating a second SRS resource set, where the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol; Or, the SRS resource configuration information includes third configuration information for a single SRS resource set; The third configuration information is information for indicating a third SRS resource set, and the third SRS resource set includes a plurality of third-type SRS resources, and the plurality of third-type SRS resources include SRS resources that overlap with at least uplink subbands of SBFD time-frequency resources, where the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots.

[0150] In one embodiment, the apparatus further comprises an acquisition module configured to acquire a list of pre-defined target bandwidth settings; The target bandwidth setting list is generated based on the initial bandwidth setting list, wherein if the number of PRBs between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, wherein the number of PRBs between the first and intermediate physical layer resources is less than or equal to the predetermined threshold, and the number of PRBs between the intermediate physical layer resource and the second physical layer resource is less than or equal to the predetermined threshold. When the transmitting module 712 transmits an SRS to a base station based on the SRS resources in the first SRS resource set, When the first type SRS resource in the first SRS resource set is located within an uplink subband range of an SBFD time-frequency resource, the SRS is transmitted to the base station based on the first type SRS resource in the first SRS resource set by referring to the target bandwidth setting list.

[0151] In one embodiment, when the first type of SRS resource in the first SRS resource set includes a first partial resource located within an uplink subband range of the SBFD time-frequency resource and a second partial resource located outside the uplink subband range of the SBFD time-frequency resource, when the transmitting module 712 transmits an SRS to the base station based on the SRS resource in the first SRS resource set, specifically: Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to the base station based on a second partial resource within the first type of SRS resource; Or, Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, When the SBFD time-frequency resource is located in a downlink slot or a downlink symbol, Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; When the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to the base station based on a second partial resource within the first type of SRS resource; Or, receiving SRS transmission instruction information from the base station; If the SRS transmission indication information allows SRS transmission in the second partial resource, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; the SRS transmission indication information does not allow SRS transmission in the second partial resource; Transmitting an SRS to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or The SRS resource control unit is configured to prohibit SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and to prohibit SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

[0152] In one embodiment, when SRS transmission to the base station based on the second partial resource in the first type SRS resource is prohibited, when the sending module 712 sends SRS to the base station based on the first partial resource in the first type SRS resource, specifically: determining a target transmit power based on the maximum transmit power, or determining a target transmit power based on the maximum transmit power and a resource ratio; or receiving transmission power instruction information from a base station, and determining a target transmission power based on a maximum transmission power when the transmission power instruction information is a first instruction information, and determining a target transmission power based on the maximum transmission power and a resource ratio when the transmission power instruction information is a second instruction information; configured to transmit an SRS to a base station based on the first partial resource under the target transmission power; Here, the resource ratio is the resource ratio between the first partial resource and the first type SRS resource.

[0153] In one embodiment, for each second-type SRS resource in a second SRS resource set, if the uplink slot or uplink symbol in which the second-type SRS resource is located includes a downlink subband of an SBFD time-frequency resource, and the second-type SRS resource includes a third partial resource located outside the downlink subband range and a fourth partial resource located within the downlink subband range, when the transmitting module 712 transmits an SRS to a base station based on the SRS resource in the second SRS resource set, specifically: Transmitting an SRS to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, transmitting an SRS to the base station based on a third partial resource within the second-type SRS resource, and transmitting an SRS to the base station based on a fourth partial resource within the second-type SRS resource; Or, prohibiting SRS transmission to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, When a third partial resource within the second-type SRS resource includes two non-contiguous resources located on both sides of the downlink subband, transmitting an SRS to the base station based on the two non-contiguous resources, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, When the third partial resource includes two non-contiguous resources located on both sides of the downlink subband, the mobile station is configured to concatenate the two non-contiguous resources to obtain a continuous resource, transmit an SRS to the base station based on the continuous resource, and prohibit SRS transmission to the base station based on a fourth partial resource in the second type SRS resource.

[0154] In one embodiment, when the transmitting module 712 transmits an SRS to a base station according to the SRS resources in the third SRS resource set, the transmitting module 712 specifically: For each third type SRS resource in the third SRS resource set: If the third-type SRS resource is located in an uplink slot or an uplink symbol, transmit the SRS to the base station based on the third-type SRS resource; Or, If the third-type SRS resource is located in a downlink slot, a downlink symbol, a flexible slot, or a flexible symbol and the third-type SRS resource is located within an uplink subband range of an SBFD time-frequency resource, transmitting an SRS to a base station based on the third-type SRS resource; When the third type SRS resource includes a fifth partial resource located within the uplink subband range and a sixth partial resource located outside the uplink subband range, the SRS is configured to transmit an SRS to a base station based on the fifth partial resource and / or the sixth partial resource.

[0155] In one embodiment, when the transmitting module 712 transmits an SRS to a base station based on the fifth partial resource and / or the sixth partial resource, the transmitting module 712 specifically: Transmitting an SRS to a base station based on the fifth partial resource, and transmitting an SRS to a base station based on the sixth partial resource; Or, Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, If the SBFD time-frequency resource is located in a downlink slot or downlink symbol, Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; If the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, send an SRS to the base station based on the fifth partial resource, and send an SRS to the base station based on the sixth partial resource; Or, receiving SRS transmission instruction information from the base station; If the SRS transmission indication information allows SRS transmission in the sixth partial resource, Sending an SRS to a base station based on the fifth partial resource and sending an SRS to a base station based on the sixth partial resource; the SRS transmission indication information does not allow SRS transmission in the sixth partial resource; Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or The mobile station is configured to prohibit SRS transmission to the base station based on the fifth partial resource and prohibit SRS transmission to the base station based on the sixth partial resource.

[0156] In one embodiment, the receiving module 711 is further configured to receive SRS resource indication information from the base station, where the SRS resource indication information is information for instructing to allow or prohibit SRS transmission on an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

[0157] Based on the same application concept as the above method, one embodiment of the present invention provides an SRS transmission device applied to a base station. Referring to Figure 7B, the device comprises: a transmitting module 721 configured to transmit SRS resource configuration information to a user equipment, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user equipment, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources; a receiving module 722 configured to receive an SRS transmitted based on an SRS resource in the SRS resource set from the user equipment.

[0158] In one embodiment, when the sending module 721 sends SRS resource configuration information to the user equipment, it specifically: configured to, when the user equipment supports a first SRS resource set and a second SRS resource set, send to the user equipment first configuration information corresponding to the first SRS resource set and second configuration information corresponding to the second SRS resource set; Or, If the user equipment supports a third SRS resource set, the third configuration information corresponding to the third SRS resource set is sent to the user equipment; and wherein the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol; The third SRS resource set includes a plurality of third-type SRS resources, the plurality of third-type SRS resources including SRS resources overlapping with at least an uplink subband of an SBFD time-frequency resource, and the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots.

[0159] In one embodiment, the apparatus further comprises an acquisition module configured to acquire a list of pre-defined target bandwidth settings; The target bandwidth setting list is generated based on an initial bandwidth setting list, wherein if the number of PRBs between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, wherein the number of PRBs between the first and intermediate physical layer resources is less than or equal to the predetermined threshold, and the number of PRBs between the intermediate physical layer resource and the second physical layer resource is less than or equal to the predetermined threshold.

[0160] In one embodiment, the sending module 721 is further configured to send SRS resource indication information to the user equipment, where the SRS resource indication information is information for instructing whether to allow or prohibit SRS transmission on an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

[0161] Based on the same application concept as the above method, one embodiment of the present invention provides a base station. Referring to Figure 8A, the base station includes a processor 811 and a machine-readable storage medium 812. The machine-readable storage medium 812 stores machine-executable instructions executable by the processor 811. The processor 811 is configured to execute the machine-executable instructions to implement the SRS transmission method disclosed in the above embodiment of the present invention.

[0162] In one embodiment, the processor 811 includes one or more processing cores (e.g., a 4-core processor, an 8-core processor, etc.). The processor 811 is implemented in at least one hardware form, such as a DSP (Digital Signal Processing), an FPGA (Field-Programmable Gate Array), or a PLA (Programmable Logic Array). The processor 811 may also include a main processor and a coprocessor. The main processor is a processor for processing active data, also referred to as a CPU (Central Processing Unit). The coprocessor is a low-power processor for processing standby data. In some embodiments, the processor 811 integrates a GPU (Graphics Processing Unit), which is responsible for rendering and drawing display content.

[0163] In one embodiment, the base station optionally includes a peripheral interface 813 and one or more peripherals. The processor 811 and the peripheral interface 813 are connected via a bus or signal lines. Each peripheral is connected to the peripheral interface 813 via a bus, signal line, or circuit board. The peripherals include at least one of a radio frequency (RF) circuit 814 and a power supply 815.

[0164] The RF circuitry 814 is used to receive and transmit RF (Radio Frequency) signals, i.e., electromagnetic signals. The RF circuitry 814 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuitry 814 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the RF circuitry 814 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a SIM card, etc. The RF circuitry 814 can communicate with user devices via at least one wireless communication protocol, including, but not limited to, the World Wide Web, a metropolitan area network, an intranet, various generations of cellular networks (2G, 3G, 4G, and 5G), a wireless local area network, and / or a wireless fidelity (WiFi) network.

[0165] The power supply 815 is used to provide power to each component in the base station, and may be an AC power supply, a DC power supply, a disposable battery, or a rechargeable battery.

[0166] For example, when the processor 811 executes the machine-executable instructions, the processor 811 is configured to control the RF circuitry 814 to perform the steps of receiving SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including SRS resources that overlap with uplink subbands of SBFD time-frequency resources, and transmitting an SRS to the base station based on the SRS resources in the SRS resource set.

[0167] Based on the same application concept as the above method, one embodiment of the present invention provides a user device. Referring to Figure 8B, the user device includes a processor 821 and a machine-readable storage medium 822. The machine-readable storage medium 822 stores machine-executable instructions executable by the processor 821. The processor 821 is configured to execute the machine-executable instructions to implement the SRS transmission method disclosed in the above embodiment of the present invention.

[0168] In one embodiment, the processor 821 includes one or more processing cores (e.g., a 4-core processor, an 8-core processor, etc.). The processor 821 is implemented in at least one hardware form of a DSP, an FPGA, or a PLA. The processor 821 may also include a main processor and a coprocessor.

[0169] In one embodiment, the user device includes a peripherals interface 823 and one or more peripherals. The processor 821 and the peripherals interface 823 are connected via a bus or signal lines. Each peripheral is connected to the peripherals interface 823 via a bus, signal line, or circuit board. The peripherals include at least one of a radio frequency (RF) circuit 824, a touchscreen display 825, a camera component 826, and a power source 827.

[0170] The RF circuitry 824 is used to receive and transmit RF signals, i.e., electromagnetic signals. The RF circuitry 824 communicates with communication networks and other communication devices via electromagnetic signals. The RF circuitry 824 converts electrical signals into electromagnetic signals for transmission, or converts received electromagnetic signals into electrical signals. Optionally, the RF circuitry 824 includes an antenna system, an RF transceiver, one or more amplifiers, a tuner, an oscillator, a digital signal processor, a SIM card, etc. The RF circuitry 824 can communicate with a base station via at least one wireless communication protocol, including, but not limited to, the World Wide Web, a metropolitan area network, an intranet, various generations of cellular networks, wireless LANs, and / or Wi-Fi.

[0171] The display 825 is used to display a UI (User Interface). The UI may include graphics, text, icons, videos, and any combination thereof. If the display 825 is a touchscreen display, the display 825 is further capable of detecting touch signals on or above the surface of the display 825. The touch signals are input to the processor 821 as control signals and processed. In this case, the display 825 may also be used to provide virtual buttons and / or a virtual keyboard (also referred to as soft buttons and / or a soft keyboard).

[0172] In some embodiments, there is one display 825 and it is located on the front panel of the user device. In other embodiments, there are at least two displays 825 and they are located on different surfaces of the user device or have a folding design. In still other embodiments, the display 825 is a flexible display and is located on a curved or folding surface of the user device. Furthermore, the display 825 is located on a non-rectangular, irregularly shaped screen. The display 825 may be made of materials such as LCD (Liquid Crystal Display), OLED (Organic Light-Emitting Diode), etc.

[0173] The camera component 826 is used to capture images or videos. Optionally, the camera component 826 includes a front camera and a rear camera. Typically, the front camera is located on the front panel of the user device, and the rear camera is located on the back of the user device. In some embodiments, there are at least two rear cameras, each of which can be a main camera, a depth camera, a wide-angle camera, or a telephoto camera. The main camera and the depth camera can be combined to achieve a background blur function, or the main camera and the wide-angle camera can be combined to achieve panoramic photography, virtual reality (VR) photography, or other fusion photography functions. In some embodiments, the camera component 826 further includes a flash. The flash can be a single color temperature flash or a dual color temperature flash. A dual color temperature flash refers to a combination of a warm-color light flash and a cool-color light flash, which can be used to compensate for light intensity under different color temperatures.

[0174] The power source 827 is used to provide power to each component in the user device. The power source 827 may be an AC power source, a DC power source, a disposable battery, or a rechargeable battery. If the power source 827 includes a rechargeable battery, the rechargeable battery may be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged via a wired cable, and a wireless rechargeable battery is a battery that is charged via a wireless charging coil. The rechargeable battery may also be used to support fast charging technology.

[0175] For example, when the processor 821 executes the machine-executable instructions, the processor 821 is configured to perform the steps of: transmitting SRS resource configuration information to a user device, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user device, the SRS resource set including SRS resources overlapping with uplink subbands of SBFD time-frequency resources, by controlling the RF circuitry 824; and receiving, from the user device, an SRS transmitted based on an SRS resource in the SRS resource set.

[0176] Based on the same application concept as the above method, one embodiment of the present invention further provides a machine-readable storage medium, which stores some computer instructions, and when the computer instructions are executed by a processor, the SRS transmission method disclosed in the above embodiment of the present invention is implemented.

[0177] Here, the machine-readable storage medium may be any electronic, magnetic, optical, or other physical storage device that can contain or store information such as executable instructions, data, etc. For example, the machine-readable storage medium may be a RAM (Random Access Memory), a volatile memory, a non-volatile memory, a flash memory, a storage drive (e.g., a hard disk drive), a solid-state drive, any type of storage disk (e.g., an optical disk, a DVD, etc.), or a similar storage medium, or a combination thereof.

[0178] The systems, devices, modules, or units described in the above embodiments may be specifically realized by a computer entity or a product having some function. A typical realizing device is a computer, and the specific form of the computer may be a personal computer, a laptop computer, a mobile phone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email sending / receiving device, a game console, a tablet PC, a wearable device, or any combination of these devices.

[0179] The above description is merely an example of the present invention and is not intended to limit the present invention. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A sounding reference signal (SRS) transmission method applied to a user equipment, comprising: receiving SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including an SRS resource overlapping with an uplink sub-band of a sub-band full duplex (SBFD) time-frequency resource; transmitting an SRS to a base station based on an SRS resource in the SRS resource set; The SRS transmission method according to the present invention is characterized in that:

2. the SRS resource configuration information includes first configuration information of a first SRS resource set and second configuration information of a second SRS resource set; the first configuration information is information for indicating the first SRS resource set, and the second configuration information is information for indicating the second SRS resource set, where the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol; Or, the SRS resource configuration information includes third configuration information of a single SRS resource set; the third configuration information is information for indicating a third SRS resource set, the third SRS resource set including a plurality of third-type SRS resources, the plurality of third-type SRS resources including SRS resources overlapping with at least an uplink subband of an SBFD time-frequency resource, wherein the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots; 2. The method of claim 1 .

3. The method further includes obtaining a list of preset target bandwidth settings; the target bandwidth setting list is generated based on an initial bandwidth setting list, wherein if the number of physical resource blocks (PRBs) between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, and the number of PRBs between the first and intermediate physical layer resources is equal to or less than a predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than a predetermined threshold; transmitting an SRS to a base station based on an SRS resource in the first SRS resource set, When the first type SRS resource in the first SRS resource set is located within an uplink subband range of an SBFD time-frequency resource, transmitting an SRS to the base station based on the first type SRS resource in the first SRS resource set and by referring to the target bandwidth configuration list; 3. The method of claim 2.

4. When the first type SRS resource in the first SRS resource set includes a first partial resource located within an uplink subband range of an SBFD time frequency resource and a second partial resource located outside the uplink subband range of the SBFD time frequency resource, the step of transmitting an SRS to a base station based on the SRS resource in the first SRS resource set includes: Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; Or, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, If the SBFD time-frequency resource is located in a downlink slot or downlink symbol, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; If the SBFD time-frequency resource is located in a flexible slot or flexible symbol, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; Or, receiving SRS transmission indication information from the base station; If the SRS transmission indication information allows SRS transmission in the second partial resource, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; If the SRS transmission indication information does not allow SRS transmission on the second partial resource, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource.

3. The method of claim 2.

5. When SRS transmission to the base station based on a second partial resource within the first type of SRS resource is prohibited, transmitting the SRS to the base station based on a first partial resource within the first type of SRS resource includes: Determining a target transmit power based on a maximum transmit power; or determining a target transmit power based on the maximum transmit power and a resource ratio; or receiving transmission power instruction information from a base station, and determining a target transmission power based on a maximum transmission power when the transmission power instruction information is a first instruction information, and determining a target transmission power based on the maximum transmission power and a resource ratio when the transmission power instruction information is a second instruction information; transmitting an SRS to a base station based on the first partial resource under the target transmission power; Wherein the resource ratio is a resource ratio between the first partial resource and the first type SRS resource; 5. The method of claim 4.

6. For each second-type SRS resource in the second SRS resource set, if the uplink slot or uplink symbol in which the second-type SRS resource is located includes a downlink subband of an SBFD time-frequency resource, and the second-type SRS resource includes a third partial resource located outside a downlink subband range of the SBFD time-frequency resource and a fourth partial resource located within a downlink subband range of the SBFD time-frequency resource, the step of transmitting an SRS to a base station based on the SRS resource in the second SRS resource set includes: Transmitting an SRS to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, transmitting an SRS to a base station based on a third partial resource within the second-type SRS resource, and transmitting an SRS to a base station based on a fourth partial resource within the second-type SRS resource; Or, prohibiting SRS transmission to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, When a third partial resource within the second-type SRS resource includes two non-contiguous resources located on both sides of the downlink subband, transmitting an SRS to the base station based on the two non-contiguous resources, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, When the third partial resource includes two non-contiguous resources located on both sides of the downlink subband, concatenating the two non-contiguous resources to obtain a continuous resource, transmitting an SRS to the base station based on the continuous resource, and prohibiting SRS transmission to the base station based on a fourth partial resource in the second-type SRS resource.

3. The method of claim 2.

7. transmitting an SRS to a base station based on an SRS resource in the third SRS resource set, For each third-type SRS resource in the third SRS resource set, When the third-type SRS resource is located in an uplink slot or an uplink symbol, transmitting an SRS to a base station based on the third-type SRS resource; Or, When the third-type SRS resource is located in a downlink slot, a downlink symbol, a flexible slot, or a flexible symbol, and the third-type SRS resource is located within an uplink subband range of an SBFD time-frequency resource, transmitting an SRS to a base station based on the third-type SRS resource; When the third-type SRS resource includes a fifth partial resource located within the uplink subband range and a sixth partial resource located outside the uplink subband range, transmitting an SRS to a base station based on the fifth partial resource and / or the sixth partial resource.

3. The method of claim 2.

8. transmitting an SRS to a base station based on the fifth partial resource and / or the sixth partial resource, transmitting an SRS to a base station based on the fifth partial resource and transmitting an SRS to a base station based on the sixth partial resource; Or, transmitting an SRS to a base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, If the SBFD time-frequency resource is located in a downlink slot or downlink symbol, Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; When the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, transmitting an SRS to a base station based on the fifth partial resource and transmitting an SRS to a base station based on the sixth partial resource; Or, receiving SRS transmission indication information from the base station; If the SRS transmission indication information allows SRS transmission in the sixth partial resource, Transmitting an SRS to a base station based on the fifth partial resource and transmitting an SRS to a base station based on the sixth partial resource; the SRS transmission indication information does not allow SRS transmission in the sixth partial resource; Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource.

8. The method of claim 7.

9. The method further includes receiving SRS resource indication information from the base station; Here, the SRS resource indication information is information for instructing whether to permit or prohibit SRS transmission in an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

9. The method according to any one of claims 1 to 8.

10. A sounding reference signal (SRS) transmission method applied to a base station, comprising: transmitting SRS resource configuration information to a user equipment, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user equipment, the SRS resource set including an SRS resource overlapping with an uplink sub-band of a sub-band full duplex (SBFD) time-frequency resource; receiving, from the user equipment, an SRS transmitted based on the SRS resource in the SRS resource set; The SRS transmission method according to the present invention is characterized in that:

11. The step of transmitting SRS resource configuration information to the user equipment includes: and if the user equipment supports a first SRS resource set and a second SRS resource set, transmitting to the user equipment first configuration information corresponding to the first SRS resource set and second configuration information corresponding to the second SRS resource set, wherein the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol. Or, and if the user equipment supports a third SRS resource set, sending third configuration information corresponding to the third SRS resource set to the user equipment, wherein the third SRS resource set includes a plurality of third-type SRS resources, the plurality of third-type SRS resources include SRS resources overlapping with at least an uplink subband of an SBFD time-frequency resource, and the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots.

11. The method of claim 10.

12. The method further includes obtaining a list of preset target bandwidth settings; the target bandwidth setting list is generated based on an initial bandwidth setting list, wherein if the number of physical resource blocks (PRBs) between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, and the number of PRBs between the first and intermediate physical layer resources is equal to or less than a predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than a predetermined threshold; 12. The method of claim 11 .

13. The method further comprises transmitting SRS resource indication information to the user equipment; Here, the SRS resource indication information is information for instructing whether to permit or prohibit SRS transmission in an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

11. The method of claim 10.

14. A sounding reference signal (SRS) transmission device applied to a user equipment, comprising: a receiving module configured to receive SRS resource configuration information transmitted from a base station, the SRS resource configuration information being information for indicating an SRS resource set, the SRS resource set including an SRS resource overlapping with an uplink sub-band of a sub-band full duplex (SBFD) time-frequency resource; a transmission module configured to transmit an SRS to a base station based on an SRS resource in the SRS resource set. An SRS transmission device characterized by:

15. the SRS resource configuration information includes first configuration information of a first SRS resource set and second configuration information of a second SRS resource set; the first configuration information is information for indicating the first SRS resource set, and the second configuration information is information for indicating the second SRS resource set, where the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol; Or, the SRS resource configuration information includes third configuration information of a single SRS resource set; the third configuration information is information for indicating a third SRS resource set, the third SRS resource set including a plurality of third-type SRS resources, the plurality of third-type SRS resources including SRS resources overlapping with at least an uplink subband of an SBFD time-frequency resource, wherein the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots; 15. The device of claim 14.

16. The apparatus further comprises an acquisition module configured to acquire a list of preset target bandwidth settings; the target bandwidth setting list is generated based on an initial bandwidth setting list, wherein if the number of physical resource blocks (PRBs) between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, and the number of PRBs between the first and intermediate physical layer resources is equal to or less than a predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than a predetermined threshold; When the transmitting module transmits an SRS to a base station based on an SRS resource in the first SRS resource set, configured to transmit an SRS to the base station based on the first type SRS resource in the first SRS resource set by referring to the target bandwidth configuration list when the first type SRS resource in the first SRS resource set is located within an uplink subband range of an SBFD time-frequency resource; 16. The device of claim 15.

17. When the first type of SRS resource in the first SRS resource set includes a first partial resource located within an uplink subband range of an SBFD time-frequency resource and a second partial resource located outside the uplink subband range of the SBFD time-frequency resource, the transmitting module transmits an SRS to a base station based on the SRS resource in the first SRS resource set: transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; Or, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; Or, If the SBFD time-frequency resource is located in a downlink slot or downlink symbol, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or prohibiting SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; If the SBFD time-frequency resource is located in a flexible slot or flexible symbol, transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; Or, receiving SRS transmission indication information from the base station; If the SRS transmission indication information allows SRS transmission in the second partial resource, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and transmitting an SRS to a base station based on a second partial resource within the first type of SRS resource; If the SRS transmission indication information does not allow SRS transmission on the second partial resource, Transmitting an SRS to a base station based on a first partial resource within the first type of SRS resource, and prohibiting SRS transmission to the base station based on a second partial resource within the first type of SRS resource; or configured to prohibit SRS transmission to the base station based on a first partial resource within the first type of SRS resource, and to prohibit SRS transmission to the base station based on a second partial resource within the first type of SRS resource; 16. The device of claim 15.

18. When SRS transmission to the base station based on a second partial resource within the first type of SRS resource is prohibited, the transmitting module transmits an SRS to the base station based on a first partial resource within the first type of SRS resource: determining a target transmit power based on the maximum transmit power, or determining a target transmit power based on the maximum transmit power and a resource ratio; or receiving transmission power instruction information from a base station, and determining a target transmission power based on a maximum transmission power when the transmission power instruction information is a first instruction information, and determining a target transmission power based on the maximum transmission power and a resource ratio when the transmission power instruction information is a second instruction information; configured to transmit an SRS to a base station based on the first partial resource under the target transmission power; Wherein the resource ratio is a resource ratio between the first partial resource and the first type SRS resource; 18. The device of claim 17.

19. For each second-type SRS resource in the second SRS resource set, when an uplink slot or uplink symbol in which the second-type SRS resource is located includes a downlink subband of an SBFD time-frequency resource, and the second-type SRS resource includes a third partial resource located outside a downlink subband range of the SBFD time-frequency resource and a fourth partial resource located within a downlink subband range of the SBFD time-frequency resource, the transmitting module transmits an SRS to a base station based on the SRS resource in the second SRS resource set: Transmitting an SRS to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, transmitting an SRS to the base station based on a third partial resource within the second type of SRS resource, and transmitting an SRS to the base station based on a fourth partial resource within the second type of SRS resource; Or, prohibiting SRS transmission to the base station based on a third partial resource within the second-type SRS resource, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource; Or, When a third partial resource within the second-type SRS resource includes two non-contiguous resources located on both sides of the downlink subband, transmitting an SRS to the base station based on the two non-contiguous resources, and prohibiting SRS transmission to the base station based on a fourth partial resource within the second-type SRS resource. Or, configured to, when the third partial resource includes two non-contiguous resources located on both sides of the downlink subband, concatenate the two non-contiguous resources to obtain a continuous resource, transmit an SRS to the base station based on the continuous resource, and prohibit SRS transmission to the base station based on a fourth partial resource in the second-type SRS resource; 16. The device of claim 15.

20. When the transmitting module transmits an SRS to a base station based on an SRS resource in the third SRS resource set, For each third-type SRS resource in the third SRS resource set, If the third-type SRS resource is located in an uplink slot or an uplink symbol, transmitting an SRS to a base station based on the third-type SRS resource; Or, When the third-type SRS resource is located in a downlink slot, a downlink symbol, a flexible slot, or a flexible symbol, and the third-type SRS resource is located within an uplink subband range of an SBFD time-frequency resource, transmitting an SRS to a base station based on the third-type SRS resource; When the third-type SRS resource includes a fifth partial resource located within the uplink subband range and a sixth partial resource located outside the uplink subband range, the SRS is configured to transmit to the base station based on the fifth partial resource and / or the sixth partial resource.

16. The device of claim 15.

21. When the transmission module transmits an SRS to a base station based on the fifth partial resource and / or the sixth partial resource, transmitting an SRS to a base station based on the fifth partial resource and transmitting an SRS to a base station based on the sixth partial resource; Or, transmitting an SRS to a base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; Or, If the SBFD time-frequency resource is located in a downlink slot or downlink symbol, Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or prohibiting SRS transmission to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; If the SBFD time-frequency resource is located in a flexible slot or a flexible symbol, transmitting an SRS to the base station based on the fifth partial resource, and transmitting an SRS to the base station based on the sixth partial resource; Or, receiving SRS transmission indication information from the base station; If the SRS transmission indication information allows SRS transmission in the sixth partial resource, Transmitting an SRS to a base station based on the fifth partial resource and transmitting an SRS to a base station based on the sixth partial resource; the SRS transmission indication information does not allow SRS transmission in the sixth partial resource; Transmitting an SRS to the base station based on the fifth partial resource and prohibiting SRS transmission to the base station based on the sixth partial resource; or configured to prohibit SRS transmission to the base station based on the fifth partial resource and prohibit SRS transmission to the base station based on the sixth partial resource; 21. The apparatus of claim 20.

22. The receiving module is further configured to receive SRS resource indication information from the base station; Here, the SRS resource indication information is information for instructing whether to permit or prohibit SRS transmission in an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

22. Apparatus according to any one of claims 14 to 21.

23. A sounding reference signal (SRS) transmission device applied to a base station, comprising: a transmission module configured to transmit SRS resource configuration information to a user equipment, the SRS resource configuration information being information for indicating an SRS resource set to be used by the user equipment, the SRS resource set including an SRS resource overlapping with an uplink sub-band of a sub-band full duplex (SBFD) time-frequency resource; a receiving module configured to receive, from the user equipment, an SRS transmitted based on an SRS resource in the SRS resource set. An SRS transmission device characterized by:

24. When the transmitting module transmits SRS resource configuration information to the user equipment, configured to, when the user equipment supports a first SRS resource set and a second SRS resource set, transmit to the user equipment first configuration information corresponding to the first SRS resource set and second configuration information corresponding to the second SRS resource set; Or, If the user equipment supports a third SRS resource set, transmitting third configuration information corresponding to the third SRS resource set to the user equipment; wherein the first SRS resource set includes a plurality of first-type SRS resources overlapping with uplink subbands of an SBFD time-frequency resource, and the second SRS resource set includes a plurality of second-type SRS resources located in an uplink slot or an uplink symbol; the third SRS resource set includes a plurality of third-type SRS resources, the plurality of third-type SRS resources including SRS resources overlapping with at least an uplink subband of an SBFD time-frequency resource, and the plurality of third-type SRS resources are contiguous SRS resources or non-contiguous SRS resources located in different slots; 24. The apparatus of claim 23.

25. The apparatus further comprises an acquisition module configured to acquire a list of preset target bandwidth settings; the target bandwidth setting list is generated based on an initial bandwidth setting list, wherein if the number of physical resource blocks (PRBs) between adjacent first and second physical layer resources in the initial bandwidth setting list exceeds a predetermined threshold, an intermediate physical layer resource is added to the initial bandwidth setting list to obtain the target bandwidth setting list, and the number of PRBs between the first and intermediate physical layer resources is equal to or less than a predetermined threshold, and the number of PRBs between the intermediate and second physical layer resources is equal to or less than a predetermined threshold; 25. The apparatus of claim 24.

26. The transmitting module is further configured to transmit SRS resource indication information to the user equipment; Here, the SRS resource indication information is information for instructing whether to permit or prohibit SRS transmission in an SRS resource overlapping with an uplink subband of the SBFD time-frequency resource.

24. The apparatus of claim 23.

27. A user device comprising a processor and a machine-readable storage medium, the machine-readable storage medium stores machine-executable instructions executable by the processor; The processor is configured to perform the method of any one of claims 1 to 9 by executing the machine-executable instructions. A user device characterized in that:

28. A base station comprising a processor and a machine-readable storage medium, the machine-readable storage medium stores machine-executable instructions executable by the processor; The processor is configured to perform the method of any one of claims 10 to 13 by executing the machine-executable instructions. A base station characterized by:

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