Wireless communication method and device

Abstract

An embodiment of the present application provides a wireless communication method and device. The method includes: receiving a trigger signaling, the trigger signaling is used to trigger a terminal device to send a target sounding reference signal SRS resource group, the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine the time slot position for sending the target SRS resource in the SRS resource group. By redefining the first time slot offset as a time slot position that can be used to determine the time slot position for sending the target SRS resource in the SRS resource group, in other words, the first time slot offset may not be used to determine the time slot position for sending the target SRS resource in the SRS resource group, thereby avoiding a fixed time slot offset between the trigger signaling and the SRS transmission, which is equivalent to the relative position of the time slot for receiving the trigger signaling and the time slot for sending the SRS being selectable or determinable, and accordingly, it can reduce restrictions and increase system flexibility.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to wireless communication methods and devices. Background Art

[0002] In the New Radio (NR) system, in order to support various possible deployment scenarios and various new types of services in the future, the system design is very flexible. For example, uplink and downlink resources can be indicated and adjusted through high-layer signaling and physical layer signaling. Therefore, a time slot or some symbols on a slot may be used for transmission in different directions at different times. For example, it can be used for uplink transmission at one time and for downlink transmission at another time.

[0003] However, for the non-periodic sounding reference signal (SRS), its slot offset can be configured by high-level signaling, which is equivalent to that before the RRC signaling reconfigures other values, the slot offset between each trigger signaling and SRS transmission is unchanged, resulting in the relative position of the time slot for receiving the trigger signaling and the time slot for sending the SRS being fixed, which increases the restriction and reduces the flexibility of the system. Summary of the invention

[0004] The embodiments of the present application provide a wireless communication method and device that can reduce restrictions and improve system flexibility.

[0005] In a first aspect, a wireless communication method is provided, comprising:

[0006] Receive trigger signaling, the trigger signaling is used to trigger the terminal device to send a target detection reference signal SRS resource group, the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0007] In a second aspect, a wireless communication method is provided, including:

[0008] Acquire a first time domain range after a first time slot where a trigger signaling is located, wherein the trigger signaling is used to trigger a terminal device to send a target sounding reference signal SRS resource group;

[0009] Based on the first time domain range, the reception of downlink control information DCI 2_0 is controlled.

[0010] In a third aspect, a wireless communication method is provided, including:

[0011] Send a trigger signaling, the trigger signaling is used to trigger the terminal device to send a target detection reference signal SRS resource group, the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0012] In a fourth aspect, a wireless communication method is provided, including:

[0013] Acquire a first time domain range after a first time slot where a trigger signaling is located, wherein the trigger signaling is used to trigger a terminal device to send a target sounding reference signal SRS resource group;

[0014] Based on the first time domain range, control the sending of downlink control information DCI 2_0.

[0015] In a fifth aspect, a terminal device is provided, for executing the method in any one of the first to second aspects or their respective implementations. Specifically, the terminal device includes a functional module for executing the method in any one of the first to second aspects or their respective implementations.

[0016] In a sixth aspect, a network device is provided for executing the method in any one of the third to fourth aspects or their respective implementations. Specifically, the network device includes a functional module for executing the method in any one of the third to fourth aspects or their respective implementations.

[0017] In a seventh aspect, a terminal device is provided, comprising a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in any one of the first to second aspects or their respective implementations.

[0018] In an eighth aspect, a network device is provided, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in any one of the third to fourth aspects or their respective implementations.

[0019] In a ninth aspect, a chip is provided for implementing the method in any one of the first to fourth aspects or in each of its implementations. Specifically, the chip includes: a processor for calling and running a computer program from a memory, so that a device equipped with the chip executes the method in any one of the first to fourth aspects or in each of its implementations.

[0020] In a tenth aspect, a computer-readable storage medium is provided for storing a computer program, wherein the computer program enables a computer to execute the method of any one of the first to fourth aspects or any of its implementations.

[0021] In an eleventh aspect, a computer program product is provided, comprising computer program instructions, wherein the computer program instructions enable a computer to execute the method in any one of the first to fourth aspects or any of their implementations.

[0022] In a twelfth aspect, a computer program is provided, which, when executed on a computer, enables the computer to execute the method in any one of the first to fourth aspects or in each of its implementations.

[0023] Based on the above technical solution, by redefining the first time slot offset as a time slot position that can be used to determine the time slot position for sending the target SRS resource in the SRS resource group, in other words, the first time slot offset may not be used to determine the time slot position for sending the target SRS resource in the SRS resource group, thereby avoiding a time slot offset between a fixed trigger signaling and an SRS transmission, which is equivalent to the relative position of the time slot for receiving the trigger signaling and the time slot for sending the SRS being selectable or determinable, and accordingly, being able to reduce restrictions and increase system flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is an example of the application scenario of this application.

[0025] Figure 2 and Figure 3 It is a schematic timing diagram of the SRS transmission process provided in an embodiment of the present application.

[0026] Figure 4 It is a schematic flowchart of the wireless communication method provided in an embodiment of the present application.

[0027] Figures 5 to 10 It is a schematic timing diagram of the SRS transmission process based on the first time slot offset provided in an embodiment of the present application.

[0028] Fig.11 It is another schematic flowchart of the wireless communication method provided in an embodiment of the present application.

[0029] Fig.12 and Fig.13 It is a schematic block diagram of a terminal device provided in an embodiment of the present application.

[0030] Fig.14 and Fig.15 It is a schematic block diagram of a network device provided in an embodiment of the present application.

[0031] Fig.16 It is a schematic block diagram of a communication device provided in an embodiment of the present application.

[0032] Fig.17 1 is a schematic block diagram of the chip provided in an embodiment of the present application. DETAILED DESCRIPTION

[0033] The following will describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0034] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application.

[0035] like Figure 1 As shown, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 may communicate with the terminal device 110 via an air interface. The terminal device 110 and the network device 120 support multi-service transmission.

[0036] It should be understood that the embodiments of the present application are only exemplified by the communication system 100, but the embodiments of the present application are not limited thereto. That is to say, the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), 5G communication system (also known as New Radio (NR) communication system), or future communication systems.

[0037] exist Figure 1 In the communication system 100 shown, the network device 120 may be an access network device that communicates with the terminal device 110. The access network device may provide communication coverage for a specific geographical area, and may communicate with the terminal device 110 (eg, UE) located in the coverage area.

[0038] The network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, an access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, or a network device in a future evolved Public Land Mobile Network (PLMN), etc.

[0039] The terminal device 110 may be any terminal device, including but not limited to a terminal device connected to the network device 120 or other terminal devices by wire or wireless connection.

[0040] For example, the terminal device 110 may refer to an access terminal, a user equipment (UE), a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolution network, etc.

[0041] The terminal device 110 may be used for device-to-device (D2D) communication.

[0042] The wireless communication system 100 may also include a core network device 130 for communicating with the base station, and the core network device 130 may be a 5G core network (5G Core, 5GC) device, for example, an access and mobility management function (Access and Mobility Management Function, AMF), and for example, an authentication server function (Authentication Server Function, AUSF), and for example, a user plane function (User Plane Function, UPF), and for example, a session management function (Session Management Function, SMF). Optionally, the core network device 130 may also be an evolved packet core (Evolved Packet Core, EPC) device of the LTE network, for example, a session management function + core network data gateway (Session Management Function + Core Packet Gateway, SMF + PGW-C) device. It should be understood that SMF + PGW-C can simultaneously implement the functions that SMF and PGW-C can implement. In the process of network evolution, the above-mentioned core network device may also be called other names, or a new network entity may be formed by dividing the functions of the core network, which is not limited in the embodiments of the present application.

[0043] The functional units in the communication system 100 may also establish connections through next generation (NG) network interfaces to achieve communication.

[0044] For example, the terminal device establishes an air interface connection with the access network device through the NR interface for transmitting user plane data and control plane signaling; the terminal device can establish a control plane signaling connection with the AMF through the NG interface 1 (N1 for short); the access network device, such as the next generation wireless access base station (gNB), can establish a user plane data connection with the UPF through the NG interface 3 (N3 for short); the access network device can establish a control plane signaling connection with the AMF through the NG interface 2 (N2 for short); the UPF can establish a control plane signaling connection with the SMF through the NG interface 4 (N4 for short); the UPF can exchange user plane data with the data network through the NG interface 6 (N6 for short); the AMF can establish a control plane signaling connection with the SMF through the NG interface 11 (N11 for short); the SMF can establish a control plane signaling connection with the PCF through the NG interface 7 (N7 for short).

[0045] Figure 1A base station, a core network device and two terminal devices are shown exemplarily. Optionally, the wireless communication system 100 may include multiple base station devices and each base station may include another number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0046] It should be understood that all devices with communication functions in the network / system in the embodiments of the present application can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 120 and a terminal device 110 with communication functions. The network device 120 and the terminal device 110 may be the devices described above and will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as a network controller, a mobile management entity and other network entities, which is not limited in the embodiments of the present application.

[0047] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0048] An embodiment of the present application provides a wireless communication method, which can be used to determine a time slot for sending an SRS.

[0049] To facilitate understanding of the embodiments of the present application, SRS is introduced below.

[0050] The Sounding Reference Signal (SRS) signal is an important reference signal in the 5G / NR system and is widely used in various functions of the NR system. For example, SRS can be used in the following scenarios:

[0051] 1. Used for acquisition of downlink channel state information (UE sounding procedure for DL ​​CSI acquisition);

[0052] 2. Used for uplink beam management; used for frequency domain scheduling and precoding determination of uplink transmission;

[0053] 3. Used for positioning function;

[0054] 4. Cooperate with codebook-based uplink transmission;

[0055] For example, it is used for frequency domain scheduling and determination of Rank / precoding matrix indicator (PMI) / modulation coding scheme (MCS).

[0056] 5. Cooperate with non-codebook based uplink transmission;

[0057] For example, it is used for frequency domain scheduling and determination of SRS resource indication (Sounding Reference Signal Resource Indicator, SRI) / MCS.

[0058] The network device can configure one or more SRS resource sets (SRS Resource sets) for a terminal device, and each SRS Resource set can be configured with one or more SRS resources (SRS resource).

[0059] SRS transmission can be divided into periodic, semi-persistent, and aperiodic.

[0060] Periodic SRS refers to SRS that is transmitted periodically, and its period and time slot offset are configured by RRC signaling. Once the terminal device receives the corresponding configuration parameters, it sends SRS according to a certain period until the RRC configuration becomes invalid. The spatial related information (Spatial Relation Info) of the periodic SRS is also configured by RRC signaling. The spatial related information may indicate a channel state information reference signal (CSI-RS), a synchronization signal / physical broadcast channel block (Synchronization Signal / PBCH Block, SSB) or a reference SRS. For example, the transmission beam of the periodic SRS may be indicated in an implicit manner. For example, the terminal device determines the transmission beam of the periodic SRS based on the indicated CSI-RS / SSB. For another example, the terminal device may determine the transmission beam used to transmit the SRS on the SRS resource through the spatial related information of the SRS resource.

[0061] Semi-persistent SRS is also a periodically transmitted SRS. The period and slot offset are configured by RRC signaling, but its activation and deactivation signaling is carried by MAC CE. After receiving the activation signaling, the terminal device starts to transmit SRS until it receives the deactivation signaling. The spatial related information (transmit beam) of the semi-persistent SRS is carried together with the MAC CE that activates the SRS.

[0062] After receiving the period and time slot offset configured by RRC, the terminal device determines the time slot that can be used to transmit SRS according to the following formula:

[0063]

[0064] Among them, T SRS and T offset is the configured period and offset, n f and They are the radio frame and time slot numbers respectively.

[0065] Aperiodic SRS transmission means that the network device can trigger the SRS transmission of the terminal device through DCI. The trigger signaling for triggering aperiodic SRS transmission can be carried by the DCI used to schedule PUSCH / PDSCH in the UE-specific search space or the common search space, or by DCI format 2_3 in the common search space.

[0066] Among them, DCI format 2_3 can not only be used to trigger non-periodic SRS transmission, but also can be used to configure the power control instruction (TPC) command of SRS on a group of UEs or a group of carriers.

[0067] Table 1 SRS trigger signaling

[0068]

[0069] For example, if the value of the SRS request field in the DCI is 11, the SRS trigger signaling indicates the use of an SRS resource group with a higher layer parameter aperiodicSRS-ResourceTrigger set to 3 for SRS transmission.

[0070] After receiving the non-periodic SRS trigger signaling (such as DCI), the terminal device transmits SRS on the non-periodic SRS resource group indicated by the trigger signaling. Among them, the slot offset between the trigger signaling and the SRS transmission can be configured by high-level signaling (RRC). The network device pre-indicates the configuration parameters of each SRS resource group of the terminal device through high-level signaling, including time-frequency resources, sequence parameters, power control parameters, etc. In addition, for each SRS resource in the triggered SRS resource group, the terminal device can also determine the transmit beam used to transmit SRS on the resource through the spatial related information of the resource, and the spatial related information can be configured to each SRS resource through RRC.

[0071] Figure 2 It is a schematic timing diagram of the SRS transmission process provided in an embodiment of the present application.

[0072] like Figure 2 As shown, for the slot offset, if the terminal device receives the DCI signaling triggering the aperiodic SRS in the time slot n, the UE will send the SRS resources in the corresponding SRS resource group in the time slot n'. Optionally, n' can be obtained based on the following formula:

[0073]

[0074] Where k is the RRC parameter slotOffset configured for each set, and μ SRS and μ PDCCH They are the subcarrier spacing configurations of the triggered SRS and PDCCH carrying the trigger command respectively.

[0075] In addition, the New Radio (NR) system can achieve faster and more flexible scheduling and various new types of services in the future by adding flexible configuration. For example, the uplink and downlink symbol distinction at the symbol level can be achieved through the Slot Format Indicator (SFI), thereby achieving faster uplink and downlink symbol switching.

[0076] The SFI is described below.

[0077] The format of the time slot includes downlink symbols, uplink symbols and flexible symbols. The format of each time slot of the terminal device is configured by the high-level parameter time division duplex-uplink-downlink common configuration (tdd-UL-DL-ConfigurationCommon). Among them, tdd-UL-DL-ConfigurationCommon includes the subcarrier spacing configuration parameter (referenceSubcarrierSpacing) and the time slot format parameter (pattern1).

[0078] Optionally, pattern1 can contain:

[0079] The period P of the time slot configuration is configured by the higher-layer parameter dl-UL-TransmissionPeriodicity;

[0080] The number of downlink time slots containing only downlink symbols is configured by the higher-layer parameter nrofDownlinkSlots;

[0081] The number of downlink symbols is configured by the higher-level parameter nrofDownlinkSymbols;

[0082] The number of uplink time slots containing only uplink symbols is configured by the higher-layer parameter nrofUplinkSlots;

[0083] The number of uplink symbols is configured by the higher-level parameter nrofUplinkSymbols.

[0084] If the terminal device is configured with the high-level parameter SFI, the terminal device can modify the format of the time slot through DCI 2_0. The SFI-index field value in DCI2_0 is used to indicate the time slot format of each time slot in multiple time slots representing each DL BWP or each UL BWP of the terminal device. The effective position of SFI is the time slot where the terminal device first detects DCI 2_0. The SFI-index field can contain bits, where the value of maxSFIindex may be the maximum value provided for the slot format combination identifier (slotFormatCombinationId) of the higher layer parameter.

[0085] As an example, the timeslot format may be determined by the format index provided in Table 2.

[0086] Table 2. Format index

[0087]

[0088] As shown in Table 2, 'D' represents a downlink symbol, 'U' represents an uplink symbol, and 'F' represents a flexible symbol.

[0089] It should be noted that the terminal cannot indicate the symbols that have been configured as uplink in tdd-UL-DL-ConfigurationCommon as downlink symbols through the SFI-index field in DCI2_0, and vice versa.

[0090] Since the time slot offset of non-periodic SRS transmission is configured by high-level signaling (RRC signaling), the time slot offset between each trigger signaling and SRS transmission remains unchanged before the RRC signaling reconfigures other values, resulting in the relative position of the time slot for receiving the trigger signaling and the time slot for sending the SRS being fixed, which increases restrictions and reduces system flexibility.

[0091] For example, assuming that the time slot offset is k, if you want to trigger SRS transmission on slot n+k, the corresponding trigger signaling can only be sent on slot n, which is equivalent to limiting the timing of sending the trigger signaling, adding additional unnecessary restrictions to network device scheduling.

[0092] For another example, assuming that the time slot offset is k, when a certain slot, or some symbols on a certain slot, are dynamically changed from being uplink transmission to being downlink transmission, a certain non-periodic SRS may not be transmitted. For example, if slot n+k is changed to be used for downlink transmission, the trigger SRS signaling sent on slot n is invalid, or the trigger signaling cannot be sent on slot n.

[0093] Figure 3 It is a schematic timing diagram of the SRS transmission process when k=3 provided in an embodiment of the present application.

[0094] like Figure 3 As shown, in the first time slot, the network device sends DCI2_0 signaling to adjust the fifth time slot to a downlink time slot. In the second time slot, the network device sends DCI signaling to trigger the terminal device to send an SRS with a time slot offset of 3, that is, to send an SRS in time slot 5. However, since the time slot format has been adjusted, the fifth time slot is changed to a downlink time slot, which will cause the SRS transmission to fail.

[0095] In some embodiments of the present application, by defining the time slot offset of the resource group as an offset of the valid time slot and increasing the maximum range limit for the time slot position of sending SRS, the success rate of transmitting SRS can be improved. In other embodiments of the present application, by using the method of indicating additional time slot offsets using indication information, the success rate of transmitting SRS can be improved. In other embodiments of the present application, the method of using MAC CE to update the time slot offset combined with DCI to indicate additional time slot offsets can improve the success rate of transmitting SRS. In other embodiments of the present application, by increasing the limit of SFI, the success rate of transmitting SRS can be improved.

[0096] It should be noted that, for the sake of ease of description, the time slot offset configured for the SRS resource group will be collectively referred to as the first time slot offset, the time slot offset of the SRS resource level configured for the SRS resource will be collectively referred to as the second time slot offset, and the indicated additional time slot offset will be collectively referred to as the third time slot offset.

[0097] Figure 4 A schematic flow chart of a wireless communication method 200 according to an embodiment of the present application is shown. The method 200 can be interactively executed by a terminal device and a network device. Figure 4 The terminal device shown in FIG. 1 may be a terminal device such as Figure 1 The terminal equipment shown, Figure 2 The network devices shown in can be Figure 1 The access network equipment shown.

[0098] like Figure 4 As shown, the method 200 may include:

[0099] S210, receiving a trigger signaling, wherein the trigger signaling is used to trigger a terminal device to send a target sounding reference signal SRS resource group, wherein the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine a time slot position for sending a target SRS resource in the SRS resource group.

[0100] In other words, the first time slot offset may be used to determine the time slot position for sending the target SRS resource in the SRS resource group, and may not be used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0101] By redefining the first time slot offset as a time slot position that can be used to determine the time slot position for sending the target SRS resource in the SRS resource group, in other words, the first time slot offset may not be used to determine the time slot position for sending the target SRS resource in the SRS resource group, thereby avoiding a time slot offset between a fixed trigger signaling and an SRS transmission, which is equivalent to the relative position of the time slot for receiving the trigger signaling and the time slot for sending the SRS being selectable or determinable, and accordingly, being able to reduce restrictions and increase system flexibility.

[0102] The first time slot offset is described below.

[0103] In some embodiments of the present application, at least one SRS resource group among the one or more SRS resource groups may be configured with a first time slot offset.

[0104] Optionally, the first time slot offset is K; the K represents the Kth or K+1th valid time slot, or the K represents the Kth or K+1th time slot; the K is an integer greater than or equal to 0.

[0105] Optionally, the first time slot offset is configured through radio resource control (Radio Resource Control, RRC) signaling, media access control (Media Access Control, MAC) control element (Control Element, CE) or downlink control information (Downlink Control Information, DCI).

[0106] Optionally, a new field (slot_offset_R17) may be configured in the SRS-ResourceSet signaling, which is used to define the K.

[0107] It should be noted that the embodiment of the present application does not specifically limit the name and location of the new domain.

[0108] Optionally, the first time slot offset is configured through the value range T3 to T4 of K, where T3 represents the minimum value of K, and T4 represents the maximum value of K, and T3 and T4 are preset.

[0109] Optionally, K may be configured in a format of type "size(T3..T4)OF".

[0110] Optionally, T4>T3, T4≥K, and T4 is a value specified by the protocol.

[0111] As an example, the value range of K is an integer from 1 to 16. Optionally, the value range includes 1 and 16.

[0112] As another example, the value range of K is an integer from 0 to 16. Optionally, the value range includes 0 and 16.

[0113] Compared with the design with a value range of 1 to 32, since the time slot offset of the SRS resource group is redefined as the Kth effective time slot, the configuration requirements can be met while appropriately narrowing the configurable value range.

[0114] Optionally, the network device may change or update the first time slot offset K through MAC CE signaling.

[0115] Optionally, the first time slot offset is a time slot valid for the target SRS resource group.

[0116] Optionally, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0117] It should be noted that, with respect to the first time slot offset, the description of the effective time slot in the embodiment of the present application is merely an example and should not be construed as a limitation to the present application.

[0118] For example, the time slots that can be used for uplink transmission in the present application can be understood as time slots that are only used for uplink transmission, that is, always used for uplink transmission, and can also be understood as time slots containing uplink symbols, can also be understood as time slots containing flexible symbols, can also be understood as flexible time slots, and can also be understood as time slots that are occasionally not available for uplink transmission, for example, time slots that are occasionally used for downlink transmission. Optionally, whether the time slots that can be used for uplink transmission in the present application can actually be used for uplink transmission depends on whether they collide with other signal transmissions.

[0119] The following description is made by taking the case where the symbols corresponding to the target SRS resource group are occupied by other uplink signals as an example.

[0120] For example, even if some of the symbols corresponding to the target SRS resource group are occupied by other uplink signals, the time slot where the target SRS resource group is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in the inability to transmit SRS on some of the symbols corresponding to the target SRS resource group, that is, the target SRS resource group can be transmitted on another part of the symbols, at this time, the time slot where the target SRS resource group is located can still be used as the effective time slot. In other words, even if the time slot where the target SRS resource group can be transmitted for some symbols, it can be used as the effective time slot to maximize the transmission of SRS at the first time, improve the timeliness of SRS transmission, and improve system performance.

[0121] For another example, even if all symbol positions in the symbols corresponding to the target SRS resource group are occupied by other uplink signals, the time slot where the target SRS resource group is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in that all symbols corresponding to the target SRS resource group cannot be used to transmit SRS, at this time, the time slot where the target SRS resource group is located can still be used as the effective time slot. Based on this, the transmission of SRS can be terminated in time to avoid further delays, thereby reducing the implementation complexity of network devices and terminal devices, and also providing an opportunity for network devices to send new trigger signaling.

[0122] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, and the second time slot offset is a time slot offset of an SRS resource level configured for some or all SRS resources in the target SRS resource group; the method 200 further includes:

[0123] The target SRS resources in the target SRS resource group are transmitted based on the first time slot offset.

[0124] In other words, when the target SRS resource is not configured with the second time slot offset, the first time slot offset is used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0125] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, where the second time slot offset is a time slot offset of an SRS resource level configured for part or all of the SRS resources in the target SRS resource group; the method 200 further includes:

[0126] The target SRS resources in the target SRS resource group are transmitted based on the second time slot offset.

[0127] In other words, when the target SRS resource is configured with a second time slot offset, the first time slot offset is not used to determine the time slot position for sending the target SRS resource in the SRS resource group, and the second time slot offset is used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0128] The second time slot offset is described below.

[0129] In some embodiments of the present application, part or all of the SRS resources in the target SRS resource group are configured with a second time slot offset at the SRS resource level; the second time slot offset is M, where M represents the Mth or M+1th valid time slot, or, M represents the Mth or M+1th time slot; and M is an integer greater than or equal to 0.

[0130] Optionally, the second time slot offset is configured through radio resource control (Radio Resource Control, RRC) signaling, media access control (Media Access Control, MAC) control element (Control Element, CE) or downlink control information (Downlink Control Information, DCI).

[0131] Optionally, a new field (slot_offset_R17) may be configured in the SRS-Resource signaling, which is used to define the M.

[0132] It should be noted that the embodiment of the present application does not specifically limit the name and location of the new domain.

[0133] Optionally, the second time slot offset is configured through the value range T1 to T2 of M, where T1 represents the minimum value of M, and T2 represents the maximum value of M, and T1 and T2 are preset.

[0134] Optionally, the M may be configured in a format of type "size(T1..T2)OF".

[0135] Optionally, T2>T1, T2≥M, and T2 is a value specified by the protocol.

[0136] Optionally, the value range of M is 0 to 16, or the value range of M is 1 to 16.

[0137] As an example, the value range of M is an integer from 1 to 16. Optionally, the value range includes 1 and 16.

[0138] As another example, the value range of M is an integer from 0 to 16. Optionally, the value range includes 0 and 16.

[0139] Compared with the design with a value range of 1 to 32, since the time slot offset of the SRS resource is redefined as the Mth effective time slot, the configuration requirements can be met while appropriately narrowing the configurable value range.

[0140] Optionally, the network device may change or update the second time slot offset to M through MAC CE signaling.

[0141] Optionally, the second time slot offset is a time slot valid for the target SRS resource.

[0142] Optionally, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0143] It should be noted that, with respect to the second time slot offset, the description of the effective time slot in the embodiment of the present application is merely an example and should not be construed as a limitation to the present application.

[0144] For example, the time slots that can be used for uplink transmission in the present application can be understood as time slots that are only used for uplink transmission, that is, always used for uplink transmission, and can also be understood as time slots containing uplink symbols, can also be understood as time slots containing flexible symbols, can also be understood as flexible time slots, and can also be understood as time slots that are occasionally not available for uplink transmission, for example, time slots that are occasionally used for downlink transmission. Optionally, whether the time slots that can be used for uplink transmission in the present application can actually be used for uplink transmission depends on whether they collide with other signal transmissions.

[0145] The following description is made by taking the case where the symbol corresponding to the target SRS resource is occupied by other uplink signals as an example, that is, the valid time slot is a valid time slot for the target SRS resource.

[0146] For example, even if some of the symbols corresponding to the target SRS resource are occupied by other uplink signals, the time slot where the target SRS resource is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in the inability to transmit SRS on some of the symbols corresponding to the SRS resource, that is, the SRS can be transmitted on another part of the symbols, at this time, the time slot where the target SRS resource is located can still be used as the effective time slot. In other words, even for the time slot where SRS can be transmitted for some symbols, it can be used as the effective time slot to maximize the transmission of SRS at the first time, improve the timeliness of SRS transmission, and improve system performance.

[0147] For another example, even if all symbol positions in the symbol corresponding to the target SRS resource are occupied by other uplink signals, the time slot where the target SRS resource is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in that all symbols corresponding to the SRS resource cannot be used to transmit SRS, at this time, the time slot where the target SRS resource is located can still be used as the effective time slot. Based on this, the transmission of SRS can be terminated in time to avoid further delays, thereby reducing the implementation complexity of network devices and terminal devices, and also providing an opportunity for network devices to send new trigger signaling.

[0148] In some embodiments of the present application, the method 200 further includes:

[0149] First indication information is obtained, where the first indication information is used to indicate a third time slot offset that is additionally added to the target SRS resource group or the SRS resources in the target SRS resource group.

[0150] The third time slot offset is described below.

[0151] In some embodiments of the present application, a third time slot offset may be additionally added to the target SRS resource group or the SRS resources in the target SRS resource group.

[0152] Optionally, the third time slot offset is N; N represents the Nth or N+1th time slot, or, N represents the Nth or N+1th valid time slot, and N is an integer greater than or equal to 0.

[0153] Optionally, the value range of N is 0 to 16, or the value range of N is 1 to 16.

[0154] Compared with the design with a value range of 1 to 32, since the third time slot offset can be defined as the Mth effective time slot, the configuration requirements can be met while appropriately narrowing the configurable value range.

[0155] Optionally, the first indication information is carried in downlink control information DCI.

[0156] Optionally, the first indication information indicates the third time slot offset through at least one bit.

[0157] Optionally, the number of the at least one bit is preset, or the number of the at least one bit is configured by a high-level parameter.

[0158] Optionally, the additional third time slot offset N is indicated by DCI signaling via Xbit.

[0159] As an example, X is 1, that is, the additionally added third time slot offset N is indicated by 1-bit DCI signaling. Specifically, 0 indicates that the time slot offset is not increased, with better signaling fallback to support backward compatibility. 1 indicates that all SRS resources in the SRS resource group are increased by 1 time slot offset; or the opposite corresponding order; or the third time slot offset N is preset, for example, specified by the protocol.

[0160] As another example, X is 2, that is, the additional time slot offset may also be indicated by 2-bit DCI signaling. Specifically, 00 indicates no additional offset, 01 indicates that all SRS resources in the SRS resource group are increased by 1 time slot offset, 10 indicates that all SRS resources in the SRS resource group are increased by 2 time slot offsets, and 11 indicates that all SRS resources in the SRS resource group are increased by 3 time slot offsets; or the opposite corresponding order; or the specifically indicated time slot offset value may be preset, for example, specified by a protocol.

[0161] Optionally, the X is preset.

[0162] It should be noted that in the embodiments of the present application, the "preset" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, the preset may refer to a definition in a protocol. Optionally, the "protocol" may refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, which are not limited in the present application.

[0163] Optionally, the value of X is configured, for example, determined by a high-level parameter configuration, or configured by a network device.

[0164] Optionally, the third time slot offset is a time slot valid for the target SRS resource.

[0165] Optionally, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0166] Optionally, the third time slot offset is a time slot valid for the target SRS resource group.

[0167] Optionally, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0168] It should be noted that, with respect to the third time slot offset, the description of the effective time slot in the embodiment of the present application is merely an example and should not be construed as a limitation to the present application.

[0169] For example, the time slots that can be used for uplink transmission in the present application can be understood as time slots that are only used for uplink transmission, that is, always used for uplink transmission, and can also be understood as time slots containing uplink symbols, can also be understood as time slots containing flexible symbols, can also be understood as flexible time slots, and can also be understood as time slots that are occasionally not available for uplink transmission, for example, time slots that are occasionally used for downlink transmission. Optionally, whether the time slots that can be used for uplink transmission in the present application can actually be used for uplink transmission depends on whether they collide with other signal transmissions.

[0170] The following description is made by taking the case where the symbols corresponding to the target SRS resource group are occupied by other uplink signals as an example. That is, the valid time slot is a valid time slot for the target SRS resource group.

[0171] For example, even if some of the symbols corresponding to the target SRS resource group are occupied by other uplink signals, the time slot where the target SRS resource group is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in the inability to transmit SRS on some of the symbols corresponding to the target SRS resource group, that is, the target SRS resource group can be transmitted on another part of the symbols, at this time, the time slot where the target SRS resource group is located can still be used as the effective time slot. In other words, even if the time slot where the target SRS resource group can be transmitted for some symbols, it can be used as the effective time slot to maximize the transmission of SRS at the first time, improve the timeliness of SRS transmission, and improve system performance.

[0172] For another example, even if all symbol positions in the symbols corresponding to the target SRS resource group are occupied by other uplink signals, the time slot where the target SRS resource group is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in that all symbols corresponding to the target SRS resource group cannot be used to transmit SRS, at this time, the time slot where the target SRS resource group is located can still be used as the effective time slot. Based on this, the transmission of SRS can be terminated in time to avoid further delays, thereby reducing the implementation complexity of network devices and terminal devices, and also providing an opportunity for network devices to send new trigger signaling.

[0173] The following description is made by taking the case where the symbol corresponding to the target SRS resource is occupied by other uplink signals as an example, that is, the valid time slot is a valid time slot for the target SRS resource.

[0174] For example, even if some of the symbols corresponding to the target SRS resource are occupied by other uplink signals, the time slot where the target SRS resource is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in the inability to transmit SRS on some of the symbols corresponding to the SRS resource, that is, the SRS can be transmitted on another part of the symbols, at this time, the time slot where the target SRS resource is located can still be used as the effective time slot. In other words, even for the time slot where SRS can be transmitted for some symbols, it can be used as the effective time slot to maximize the transmission of SRS at the first time, improve the timeliness of SRS transmission, and improve system performance.

[0175] For another example, even if all symbol positions in the symbol corresponding to the target SRS resource are occupied by other uplink signals, the time slot where the target SRS resource is located can be used as the effective time slot. For example, according to the rules specified in the NR protocol, when the priority of a certain PUCCH transmission is higher than SRS, and the two overlap in symbols, resulting in that all symbols corresponding to the SRS resource cannot be used to transmit SRS, at this time, the time slot where the target SRS resource is located can still be used as the effective time slot. Based on this, the transmission of SRS can be terminated in time to avoid further delays, thereby reducing the implementation complexity of network devices and terminal devices, and also providing an opportunity for network devices to send new trigger signaling.

[0176] The transmission of the SRS based on the third time slot offset is described below.

[0177] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, the second time slot offset is a time slot offset of an SRS resource level configured for some or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate that the third time slot offset is additionally added for the SRS resource in the target SRS resource group that is not configured with the second time slot offset; the method 200 also includes:

[0178] The target SRS resource is sent based on the first time slot offset and the third time slot offset.

[0179] In other words, when the target SRS resource is not configured with the second time slot offset and the first indication information is for the SRS resource not configured with the second time slot offset, the first time slot offset and the third time slot offset are used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0180] Of course, when the target SRS resource is configured with a second time slot offset and the first indication information is for an SRS resource not configured with the second time slot offset, the second time slot offset is used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0181] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, the second time slot offset is a time slot offset of an SRS resource level configured for some or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate that the third time slot offset is additionally added for the SRS resource configured with the second time slot offset in the target SRS resource group; the method 200 also includes:

[0182] The target SRS resource is transmitted based on the second time slot offset and the third time slot offset.

[0183] In other words, when the target SRS resource is configured with a second time slot offset and the first indication information is for the SRS resource configured with the second time slot offset, the first time slot offset is not used to determine the time slot position for sending the target SRS resource in the SRS resource group, and the second time slot offset and the third time slot offset are used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0184] Of course, when the target SRS resource is not configured with the second time slot offset and the first indication information is for the SRS resource configured with the second time slot offset, the first time slot offset is used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0185] In some embodiments of the present application, the first indication information is used to indicate the third time slot offset additionally added to all SRS resources in the target SRS resource group or the target SRS resource group.

[0186] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, the second time slot offset is a time slot offset of an SRS resource level configured for some or all SRS resources in the target SRS resource group, and the method 200 further includes:

[0187] The target SRS resource is sent based on the first time slot offset and the third time slot offset.

[0188] In other words, when the target SRS resource is not configured with a second time slot offset and the first indication information is for all SRS resources or the target SRS resource group, the first time slot offset and the third time slot offset are used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0189] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, where the second time slot offset is a time slot offset of an SRS resource level configured for some or all SRS resources in the target SRS resource group, and the method 200 further includes:

[0190] The target SRS resource is transmitted based on the second time slot offset and the third time slot offset.

[0191] In other words, when the target SRS resource is configured with a second time slot offset and the first indication information is for the SRS resource configured with the second time slot offset, the second time slot offset and the third time slot offset are used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0192] In some embodiments of the present application, the first time slot offset is K, and K is an integer greater than or equal to 0; or, some or all of the SRS resources in the target SRS resource group are configured with a second time slot offset at the SRS resource level, and the second time slot offset is M, and M is an integer greater than or equal to 0; or, the target SRS resource group or the SRS resources in the target SRS resource group are additionally provided with a third time slot offset, and the third time slot offset is N, and N is an integer greater than or equal to 0; the time slot used to send the target SRS resource is the second time slot, and when K represents the Kth or K+1th valid time slot, M represents the Mth or M+1th valid time slot, or N represents the Nth or N+1th time slot, the second time slot is located within G time slots after the first time slot where the trigger signaling is located, and G is an integer greater than 0.

[0193] In other words, the G time slots can be used to form the maximum range to limit the time slot position for sending SRS, which can reduce the implementation complexity of network equipment and terminal equipment. In some cases, the transmission corresponding to the current trigger signaling can be terminated in time to facilitate the subsequent sending of new trigger signaling.

[0194] Optionally, the G time slots are G uplink time slots.

[0195] Optionally, the G is predefined, or the G is configured by a high-level parameter.

[0196] It should be noted that in the embodiments of the present application, the "preset" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, the preset may refer to a definition in a protocol. Optionally, the "protocol" may refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, which are not limited in the present application.

[0197] In some embodiments of the present application, the method 200 further includes:

[0198] Configuration information is received, where the configuration information is used to configure the first time slot offset and / or the second time slot offset, where the second time slot offset is a time slot offset at an SRS resource level configured for part or all of the SRS resources in the target SRS resource group.

[0199] Optionally, the configuration information is carried in radio resource control RRC signaling.

[0200] In some embodiments of the present application, the method 200 further includes:

[0201] Acquire update information, where the update information is used to update the first time slot offset and / or the second time slot offset, where the second time slot offset is a time slot offset at an SRS resource level configured for part or all of the SRS resources in the target SRS resource group.

[0202] Optionally, the update information is carried in a media access control element MAC CE.

[0203] Based on this, MAC CE may be used to update the first time slot offset and / or the second time slot offset, and combined with a method in which DCI indicates an additional third time slot offset, so as to improve the success rate of transmitting SRS.

[0204] The solution of the present application is described below with reference to specific embodiments.

[0205] Embodiment 1:

[0206] In this embodiment, the success rate of transmitting the SRS can be improved by redefining the first time slot offset as the Kth effective time slot and increasing the limit of the maximum range.

[0207] The terminal device receives SRS configuration information sent by the network device through RRC signaling, and the SRS configuration information is used to configure one or more SRS resource groups, each SRS resource group containing one or more SRS resources. Optionally, the one or more SRS resource groups can be configured through SRS-ResourceSet via RRC signaling, and the one or more SRS resources can be configured through RRC signaling SRS-Resource. Optionally, the usage field in SRS-ResourceSet can be configured as one of beam management, codebook, non-codebook, and antenna switching.

[0208] The solution of the present application is described below by taking the configuration of a first slot offset K for the target SRS resource group X as an example. Optionally, the first slot offset K is defined as the Kth available slot position, and a maximum range G is added. If the maximum range G is exceeded, the SRS transmission is canceled.

[0209] Optionally, the first time slot offset is a time slot valid for the target SRS resource group.

[0210] As an example, the effective time slot refers to the time slot that can transmit all SRS resources in an SRS resource group triggered by this trigger signaling. That is, the time slot that can ensure that the terminal device can send the SRS resource group completely at one time is a valid time slot. Based on this, it can be guaranteed that this trigger signaling can trigger a complete SRS transmission, so that the trigger signaling can maximize the SRS transmission opportunity.

[0211] As another example, the effective time slot refers to a time slot that can transmit at least one SRS resource in an SRS resource group triggered by this trigger signaling. That is, the time slot that can guarantee the transmission of one or more SRS resources is a valid time slot. Based on this, the SRS can be sent at the first time to the maximum extent, the timeliness of SRS transmission can be improved, and the system performance can be improved. For example, the effective time slot refers to the symbol position corresponding to all SRS resources in the corresponding SRS resource group that can be used for uplink transmission, or the effective time slot is the symbol position corresponding to at least one SRS resource in the corresponding SRS resource group that can be used for uplink transmission.

[0212] Figure 5 It is a schematic timing diagram of the SRS transmission process when K=1 provided in an embodiment of the present application.

[0213] like Figure 5 As shown, it is assumed that K=1, that is, the sending position of the SRS resource group is the first available time slot position.

[0214] By redefining the time slot offset of the resource group as the Kth available time slot, the successful transmission of SRS can be guaranteed. In addition, through the maximum range, the implementation complexity of network equipment and terminal equipment can be reduced. In some cases, the transmission corresponding to the trigger signaling can be terminated in time to facilitate the subsequent transmission of new trigger signaling. In addition, by determining the effective time slot based on the SRS resource group as a whole, it can be ensured that the SRS resources in an SRS resource group can be sent at the same time, and when the trigger signaling triggers multiple SRS resource groups, different Ks can be configured for different SRS resource groups, thereby preventing multiple SRS resource groups from conflicting in transmission.

[0215] It should be noted that the specific description of the first time slot offset can be found above, and to avoid repetition, it will not be repeated here.

[0216] The solution of the present application is described below by taking the configuration of a second slot offset M for the target SRS resource Y as an example. Optionally, the second slot offset M is defined as the Mth available slot position, and a maximum range G is added. If the maximum range G is exceeded, the SRS transmission is cancelled.

[0217] By redefining the time slot offset of the resource to the Mth available time slot, the successful transmission of SRS can be guaranteed. In addition, through the maximum range, the implementation complexity of network equipment and terminal equipment can be reduced. In some cases, the transmission corresponding to the current trigger signaling can be terminated in time to facilitate the subsequent transmission of new trigger signaling. In addition, by determining the effective time slot for SRS resources, it can be ensured that part of the SRS resources in an SRS resource group are sent as soon as possible to avoid the delay of all SRS resources in the target SRS resource group.

[0218] Optionally, the second time slot offset is a time slot valid for the target SRS resource.

[0219] As an example, the effective time slot refers to a time slot that can transmit an SRS resource triggered by this trigger signaling. That is, the time slot that can ensure that the terminal device can send the SRS resource completely once is a valid time slot. Based on this, it can be guaranteed that this trigger signaling can trigger and complete the SRS transmission, so that the trigger signaling can maximize the SRS transmission opportunity.

[0220] As another example, the effective time slot refers to a time slot that can transmit at least one symbol of a time slot of an SRS resource triggered by this trigger signaling. That is, the time slot of the SRS that can ensure the transmission of at least one symbol of an SRS resource is an effective time slot. Based on this, the SRS can be sent at the first time to the maximum extent, the timeliness of SRS transmission can be improved, and the system performance can be improved. For example, the effective time slot refers to the symbol position of the corresponding SRS resource that can be used for uplink transmission.

[0221] It should be noted that the specific description of the second time slot offset can be found above, and to avoid repetition, it will not be repeated here.

[0222] It should also be noted that the embodiment of the present application does not specifically limit the implementation method of the maximum range G.

[0223] For example, the value range of G or the value of G may be preset.

[0224] Optionally, in an embodiment of the present application, the "preset" may be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, the preset may refer to a definition in a protocol. Optionally, the "protocol" may refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, which is not limited in the present application.

[0225] For another example, the value range of G or the value of G may be configurable. For example, the value range of G or the value of G may be determined according to a parameter configured by a network device. For another example, the value range of G or the value of G may be indicated by RRC or MAC CE or physical layer signaling (e.g., DCI).

[0226] For another example, the G time slots after the time slot n where the trigger signaling is located may include the Gth time slot or may not include the Gth time slot, where slot n is the time slot where the UE receives the aperiodic SRS trigger signaling. Optionally, the G time slots are G uplink time slots.

[0227] Embodiment 2:

[0228] In this embodiment, the success rate of transmitting the SRS can be improved by using the indication information to indicate the additional third time slot offset.

[0229] The terminal device receives SRS configuration information sent by the network device through RRC signaling, and the SRS configuration information is used to configure one or more SRS resource groups, each SRS resource group containing one or more SRS resources. Optionally, the one or more SRS resource groups can be configured through SRS-ResourceSet via RRC signaling, and the one or more SRS resources can be configured through RRC signaling SRS-Resource. Optionally, the usage field in SRS-ResourceSet can be configured as one of beam management, codebook, non-codebook, and antenna switching.

[0230] Optionally, the target SRS resource group X is configured with a first time slot offset K.

[0231] Optionally, the network device may indicate an additional third time slot offset N for the target SRS resource group X through DCI.

[0232] The following takes the target SRS resource group in the one or more SRS resource groups as an example, and describes the solution of the present application in combination with the first time slot offset and the third time slot offset.

[0233] Optionally, N is defined as the Nth time slot. By adding an additional third time slot offset N of the DCI, it has higher timeliness and flexibility. At the same time, taking the SRS resource group as a whole, it can be ensured that the SRS resources in an SRS resource group can be sent at the same time.

[0234] Figure 6It is a schematic timing diagram of sending SRS based on the third time slot offset N provided in an embodiment of the present application.

[0235] like Figure 6 As shown, the first time slot offset K is 4 time slots, the third time slot offset N is 1 time slot, and if the terminal device receives the trigger signaling in the 2nd time slot, the terminal device sends the SRS in the 7th time slot.

[0236] Optionally, N is defined as the Nth valid time slot, and the maximum range G is increased; if the maximum range G is exceeded, the transmission of the SRS is canceled. By increasing the third time slot offset N of the DCI, it has higher timeliness and flexibility. And the definition of the third time slot offset N is redefined to further increase the flexibility of triggering SRS. At the same time, the SRS resource group is taken as a whole, which can ensure that the SRS resources in an SRS resource group can be sent at the same time.

[0237] Figure 7 It is a schematic timing diagram of sending SRS based on the third time slot offset N provided in an embodiment of the present application.

[0238] like Figure 7 As shown, the first time slot offset K is 3 time slots, the third time slot offset N is 1 effective time slot, and if the terminal device receives the trigger signaling in the second time slot, the terminal device sends the SRS in the seventh time slot.

[0239] It should be noted that Figure 6 and Figure 7 The definition of K as the Kth time slot is only an example of the present application. In other embodiments, K may also be defined as the Kth valid time slot.

[0240] In this embodiment, the target SRS resource group X is configured with a first time slot offset K; a second time slot offset M is configured for at least one SRS resource in the target SRS resource group X, the at least one SRS resource is at least one SRS resource in the target SRS resource group X, and for resources that are not configured with a resource-level time slot offset, a time slot offset consistent with the SRS resource group is used, that is, the first time slot offset K. By determining the time slot offset with the SRS resource as the object, it can be ensured that part of the SRS resources in an SRS resource group can be sent as early as possible, avoiding the delay of sending all SRS resources in the entire SRS resource group.

[0241] The solution of the present application is described below in conjunction with the second time slot offset and the third time slot offset.

[0242] Optionally, the network device may indicate an additional third time slot offset N through DCI for the target SRS resource Y configured with the second time slot offset M. Determining the time slot offset with SRS resources as the object can ensure that part of the SRS resources in an SRS resource group can be sent as early as possible to avoid delaying the sending of all SRS resources in the entire SRS resource group. In addition, providing a part of the SRS resources with additional time slot offsets indicated by DCI increases the flexibility of configuration so that they can be reused in more SRS resource groups.

[0243] As an example, N is defined as the Nth time slot.

[0244] Figure 8 It is a schematic timing diagram of sending SRS based on the third time slot offset N provided in an embodiment of the present application.

[0245] like Figure 8 As shown, the first time slot offset K is 7, the second time slot resource of SRS resource Y1 is M1, and M1 is 4, the second time slot resource of SRS resource Y2 is M2, and M2 is 5, the third time slot offset is 1 time slot, and SRS resource Y3 and SRS resource Y4 are not configured with a second time slot offset. Based on this, if the terminal device receives the trigger signaling in the second time slot, the terminal device sends SRS resource Y1 in the seventh time slot, sends SRS resource Y2 in the eighth time slot, and sends SRS resource Y3 and SRS resource Y4 in the ninth time slot.

[0246] It should be noted that Figure 8 The definition of N as the Nth time slot is only an example of the present application. In other embodiments, N can also be defined as the Nth time slot, and the limit of the maximum range G can be increased. If the maximum range G is exceeded, the transmission of the SRS is canceled.

[0247] Optionally, the network device may indicate an additional third time slot offset N through DCI for the target SRS resource Y that is not configured with the second time slot offset M. By determining the time slot offset based on the SRS resource, it is possible to ensure that part of the SRS resources in an SRS resource group can be sent as early as possible, thereby avoiding the delay in sending all SRS resources in the entire SRS resource group. In addition, a part of the SRS resources are provided with an additional time slot offset indicated by DCI, thereby increasing the flexibility of configuration so that they can be reused in more SRS resource groups.

[0248] As an example, N is defined as the Nth time slot.

[0249] Fig. 9 It is a schematic timing diagram of sending SRS based on the third time slot offset N provided in an embodiment of the present application.

[0250] like Fig. 9As shown, the first time slot offset K is 4, the second time slot resource of SRS resource Y1 is M1, and M1 is 6, the second time slot resource of SRS resource Y2 is M2, and M2 is 7, the third time slot offset is 1 time slot, and SRS resource Y3 and SRS resource Y4 are not configured with a second time slot offset. Based on this, if the terminal device receives the trigger signaling in the second time slot, the terminal device sends SRS resource Y3 and SRS resource Y4 in the seventh time slot, sends SRS resource Y1 in the eighth time slot, and sends SRS resource Y2 in the ninth time slot.

[0251] It should be noted that Fig. 9 The definition of N as the Nth time slot is only an example of the present application. In other embodiments, N can also be defined as the Nth time slot, and the limit of the maximum range G can be increased. If the maximum range G is exceeded, the transmission of the SRS is canceled.

[0252] Optionally, the network device may indicate an additional third time slot offset N through DCI for all SRS resources in the target SRS resource X. Determining the time slot offset based on the SRS resource as an object can ensure that some SRS resources in an SRS resource group can be sent as early as possible, avoiding delayed sending of all SRS resources in the entire SRS resource group. In addition, the SRS resource is provided with an additional time slot offset indicated by DCI, providing higher timeliness and flexibility.

[0253] As an example, N is defined as the Nth time slot.

[0254] Fig.10 It is a schematic timing diagram of sending SRS based on the third time slot offset N provided in an embodiment of the present application.

[0255] like Fig.10 As shown, the first time slot offset K is 4, the second time slot resource of SRS resource Y1 is M1, and M1 is 5, the second time slot resource of SRS resource Y2 is M2, and M2 is 6, the third time slot offset is 1 time slot, and SRS resource Y3 and SRS resource Y4 are not configured with a second time slot offset. Based on this, if the terminal device receives the trigger signaling in the second time slot, the terminal device sends SRS resource Y3 and SRS resource Y4 in the seventh time slot, sends SRS resource Y1 in the eighth time slot, and sends SRS resource Y2 in the ninth time slot.

[0256] It should be noted that Fig.10 The definition of N as the Nth time slot is only an example of the present application. In other embodiments, N can also be defined as the Nth time slot, and the limit of the maximum range G can be increased. If the maximum range G is exceeded, the transmission of the SRS is canceled.

[0257] In addition, regarding the first time slot offset, the second time slot offset and the third time slot offset in this embodiment, their specific formats and implementation methods can be found in the description of the relevant content above, and will not be repeated here to avoid repetition.

[0258] Embodiment three:

[0259] In this embodiment, the method of using MAC CE to update the time slot offset in combination with DCI indicating an additional time slot offset can improve the success rate of SRS transmission.

[0260] The terminal device receives SRS configuration information sent by the network device through RRC signaling, and the SRS configuration information is used to configure one or more SRS resource groups, each SRS resource group containing one or more SRS resources. Optionally, the one or more SRS resource groups can be configured through SRS-ResourceSet via RRC signaling, and the one or more SRS resources can be configured through RRC signaling SRS-Resource. Optionally, the usage field in SRS-ResourceSet can be configured as one of beam management, codebook, non-codebook, and antenna switching.

[0261] The solution of the present application is described below by taking the target SRS resource group in the one or more SRS resource groups as an example.

[0262] Optionally, the target SRS resource group X is configured with a first time slot offset K.

[0263] Optionally, the network device may update or modify the first time slot offset K of the SRS resource group X through the following configuration.

[0264] Optionally, for the target SRS resource group X, the first time slot offset K of the SRS resource group may be updated through MAC CE signaling.

[0265] Optionally, for the target SRS resource group X, the first time slot offset K of the target SRS resource group X can be updated through MAC CE signaling, where K is defined as the Kth available time slot, and the maximum range G is increased. If the maximum range G is exceeded, the transmission of the SRS is canceled. The design of the effective time slot and the maximum range G is consistent with that of the first embodiment, and will not be repeated here to avoid repetition. Updating the time slot offset with MAC CE signaling can adjust the time slot offset over a large range, which is convenient for flexible scheduling and implementation complexity on the network device side.

[0266] Optionally, for the target SRS resource group X, the first time slot offset K of the target SRS resource group X can be updated through MAC CE signaling, and then the combination of the additional third time slot offset N indicated by DCI can be used to jointly determine that the time slot position of the target SRS resource group X is K+N. Among them, the DCI indication method is consistent with that of Example 2, and will not be repeated here to avoid repetition. Updating the time slot offset with MAC CE signaling can adjust the time slot offset in a large range, and DCI indication can adjust the time slot offset in a small range. Timeliness and flexibility are guaranteed while ensuring implementation complexity.

[0267] Optionally, for the target SRS resource group X, the first time slot offset K of the target SRS resource group X can be updated through MAC CE signaling, and then the combination of the additional third time slot offset N indicated by DCI can be used to jointly determine that the time slot position of the target SRS resource group X is K+N. Among them, N is defined as the Nth available time slot, and the limit of the maximum range G is increased. If the maximum range G is exceeded, the transmission of the SRS is canceled. The design of the effective time slot and the maximum range G is consistent with that of Example 1, and will not be repeated here to avoid repetition. The DCI indication method is consistent with that of Example 2, and will not be repeated here to avoid repetition. Updating the time slot offset with MAC CE signaling can adjust the time slot offset in a large range, and DCI indication can adjust the time slot offset in a small range. Timeliness and flexibility are guaranteed while ensuring implementation complexity.

[0268] Optionally, a second time slot offset M is configured for at least one SRS resource, and for resources that are not configured with a resource-level time slot offset, a time slot offset consistent with the SRS resource group is used. Determining the time slot offset based on the SRS resource can ensure that part of the SRS resources in an SRS resource group can be sent as early as possible, avoiding delayed sending of all SRS resources in the entire SRS resource group.

[0269] Optionally, the network device may update or modify the second time slot offset M through the following configuration.

[0270] Optionally, the second time slot offset M for the at least one SRS resource may be updated via MAC CE signaling.

[0271] Optionally, the second time slot offset M for the at least one SRS resource can be updated through MAC CE signaling, where M is defined as the Mth available time slot, and the limit of the maximum range G is increased, and the transmission of the SRS is canceled if the maximum range G is exceeded. The design of the effective time slot and the maximum range G is consistent with that of the first embodiment, and will not be repeated to avoid repetition.

[0272] Optionally, the second time slot offset M for the at least one SRS resource can be updated through MAC CE signaling, and the additional third time slot offset N can be indicated through DCI to jointly determine that the time slot position of the at least one SRS resource is M+N. The DCI indication method is consistent with the time slot indication for the resource in Example 2, and will not be repeated to avoid repetition.

[0273] Optionally, the second time slot offset M of the at least one SRS resource can be updated through MAC CE signaling, and the additional third time slot offset N can be indicated by DCI to jointly determine that the time slot position of the at least one SRS resource is M+N. Among them, N is defined as the Nth available time slot, and the limit of the maximum range G is increased. If the maximum range G is exceeded, the transmission of the SRS is canceled. The design of the effective time slot and the maximum range G is consistent with that of Example 1. To avoid repetition, it will not be repeated. The DCI indication method is consistent with the time slot indication for the resource in Example 2. To avoid repetition, it will not be repeated.

[0274] Fig.11 A schematic flow chart of a wireless communication method 300 according to an embodiment of the present application is shown. The method 300 can be interactively executed by a terminal device and a network device. Fig.11 The terminal device shown in FIG. 1 may be a terminal device such as Figure 1 The terminal equipment shown, Fig.11 The network devices shown in can be Figure 1 The access network equipment shown.

[0275] like Fig.11 As shown, the method 300 may include:

[0276] S310, obtaining a first time domain range after a first time slot where a trigger signaling is located, wherein the trigger signaling is used to trigger a terminal device to send a target sounding reference signal SRS resource group;

[0277] S320: Control the reception or transmission of downlink control information DCI 2_0 based on the first time domain range.

[0278] For example, the terminal device controls the reception of downlink control information DCI 2_0 based on the first time domain range.

[0279] For another example, the network device controls the sending of downlink control information DCI 2_0 based on the first time domain range.

[0280] In some embodiments of the present application, the first time domain range does not allow the reception of the DCI 2_0; or, the first time domain range allows the reception of the DCI 2_0, and the time slot used to send the target SRS resource in the target SRS resource group is the second time slot, and the time slot structure of the second time slot does not change.

[0281] In other words, the first time domain range does not allow the DCI 2_0 to be sent; or, the first time domain range allows the DCI 2_0 to be sent, and the time slot used to receive the target SRS resource in the target SRS resource group is the second time slot, and the time slot structure of the second time slot does not change.

[0282] In some embodiments of the present application, the time slot used to send the target SRS resource in the target SRS resource group is the second time slot, and the first time domain range includes the time slots between the first time slot and the second time slot.

[0283] In some embodiments of the present application, the first time domain range includes the first time slot and the second time slot.

[0284] In some embodiments of the present application, the first time domain range includes P time slots after the first time slot, or the first time domain range is a time domain range with a time length of Q.

[0285] In some embodiments of the present application, the P is predefined, or the P is configured by a high-level parameter.

[0286] In some embodiments of the present application, the Q is predefined, or the Q is configured by high-level parameters.

[0287] In some embodiments of the present application, the method 300 further includes:

[0288] Based on the DCI 2_0, part of the SRS symbols in the target SRS resource are sent on uplink symbols that are not modified into downlink symbols.

[0289] For example, the terminal device sends some SRS symbols in the target SRS resource on uplink symbols that are not modified into downlink symbols based on the DCI 2_0. In other words, the network device receives some SRS symbols in the target SRS resource on uplink symbols that are not modified into downlink symbols based on the DCI 2_0.

[0290] The solution of the present application is described below with reference to embodiments.

[0291] Embodiment 4:

[0292] By increasing the SFI restriction, the success rate of SRS transmission can be improved.

[0293] The terminal device receives SRS configuration information sent by the network device through RRC signaling, and the SRS configuration information is used to configure one or more SRS resource groups, each SRS resource group containing one or more SRS resources. Optionally, the one or more SRS resource groups can be configured through SRS-ResourceSet via RRC signaling, and the one or more SRS resources can be configured through RRC signaling SRS-Resource. Optionally, the usage field in SRS-ResourceSet can be configured as one of beam management, codebook, non-codebook, and antenna switching.

[0294] The solution of the present application is described below by taking the target SRS resource group in the one or more SRS resource groups as an example.

[0295] Optionally, the target SRS resource group X is configured with a first time slot offset K.

[0296] Optionally, the network device may prevent the failed transmission of SRS by imposing the following restrictions on the SFI index field in DCI 2_0.

[0297] Optionally, the network device may limit the time range from the time slot n when the trigger signaling triggers the SRS to the time slot n' when the terminal device sends the SRS. Based on this, the complete transmission from triggering to SRS can be ensured to avoid the failed transmission of SRS due to the change of the time slot structure.

[0298] Optionally, DCI 2_0 is not allowed to be sent within this time range.

[0299] Optionally, DCI 2_0 may be sent within this time range, but it is necessary to ensure that the time slot structure of the time slot position for sending SRS does not change.

[0300] Optionally, the network device may limit the transmission of DCI 2_0 within P time slots or P milliseconds (ms) after the time slot n in which the trigger signaling triggers the SRS. Based on this, the failure of SRS transmission due to the change of the time slot structure can be avoided. In other words, by increasing the maximum range limit to reduce the complexity of network device implementation, when the time from triggering to sending of SRS is too long, it is terminated in time to facilitate the implementation of subsequent functions.

[0301] It should also be noted that the embodiment of the present application does not specifically limit the implementation method of the maximum range P.

[0302] For example, the value range of P or the value of P may be preset.

[0303] Optionally, in an embodiment of the present application, the "preset" may be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit its specific implementation method. For example, the preset may refer to a definition in a protocol. Optionally, the "protocol" may refer to a standard protocol in the field of communications, such as an LTE protocol, an NR protocol, and related protocols used in future communication systems, which is not limited in the present application.

[0304] For another example, the value range of P or the value of P may be configurable. For example, the value range of G or the value of G may be determined according to a parameter configured by a network device. For another example, the value range of G or the value of G may be indicated by RRC or MAC CE or physical layer signaling (e.g., DCI).

[0305] Optionally, if the position for transmitting SRS is a downlink symbol due to the change of the time slot format by DCI 2_0, part of SRS is transmitted at the time slot position that is not modified to a downlink symbol. Based on this, the transmission of part of SRS can be ensured to avoid delaying the transmission of all SRS resources in the entire SRS resource group.

[0306] Based on the technical solution provided in the embodiment of the present application, the network device can configure a variety of SRS flexible triggering methods for the terminal device, for example, redefine the first time slot offset, the second time slot offset or the third time slot offset as the Kth valid time slot, and increase the maximum range limit; the method can ensure the successful transmission of SRS by redefining the first time slot offset, the second time slot offset or the third time slot offset as the Kth available time slot, and then reduce the implementation complexity of the network device and the terminal device by limiting the maximum range. In some cases, the transmission corresponding to the trigger signaling is terminated in time to facilitate the subsequent transmission of new trigger signaling. For example, a method for using DCI to indicate an additional third time slot offset; this method increases the third time slot offset N of DCI, and has high timeliness and flexibility. For example, MAC CE updates the first time slot offset and / or the second time slot offset, and cooperates with DCI to indicate an additional time slot offset method; the method provides a combination of two schemes, wherein the time slot offset can be adjusted in a large range by updating the time slot offset with MACCE signaling, and the time slot offset can be adjusted in a small range by DCI indication; while ensuring the complexity of implementation, timeliness and flexibility can be guaranteed. For another example, a method of adding restrictions on the SFI index can limit the changes in the time slot format caused by SFI and ensure the successful transmission of the SRS to a certain extent.

[0307] In summary, the network device can flexibly trigger the transmission of SRS and flexibly control the complexity of scheduling and implementation through the solution provided by this application.

[0308] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, the technical solution of the present application can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present application will not further explain various possible combinations. For another example, the various different embodiments of the present application can also be arbitrarily combined, as long as they do not violate the ideas of the present application, they should also be regarded as the contents disclosed in the present application.

[0309] It should also be understood that in various method embodiments of the present application, the size of the sequence number of each process does not mean the order of execution, and the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiment of the present application. In addition, in the embodiment of the present application, the terms "downlink" and "uplink" are used to indicate the transmission direction of the signal or data, wherein "downlink" is used to indicate that the transmission direction of the signal or data is a first direction sent from the site to the user equipment of the cell, and "uplink" is used to indicate that the transmission direction of the signal or data is a second direction sent from the user equipment of the cell to the site, for example, "downlink signal" indicates that the transmission direction of the signal is the first direction. In addition, in the embodiment of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. Specifically, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0310] Combined with the above Figures 1 to 11 , describes in detail the method embodiment of the present application, and the following is combined with Figures 12 to 17 , describe in detail the device embodiments of the present application.

[0311] Fig.12 4 is a schematic block diagram of a terminal device 400 according to an embodiment of the present application. Fig.12 As shown, the terminal device 400 may include: a communication unit 410, used to receive trigger signaling, the trigger signaling is used to trigger the terminal device to send a target sounding reference signal SRS resource group, the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0312] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, and the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group; the communication unit 410 is also used to: send the target SRS resource in the target SRS resource group based on the first time slot offset.

[0313] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, where the second time slot offset is a time slot offset of an SRS resource level configured for some or all SRS resources in the target SRS resource group; the communication unit 410 is further configured to:

[0314] The target SRS resources in the target SRS resource group are transmitted based on the second time slot offset.

[0315] In some embodiments of the present application, part or all of the SRS resources in the target SRS resource group are configured with a second time slot offset at the SRS resource level; the second time slot offset is M, where M represents the Mth or M+1th valid time slot, or, M represents the Mth or M+1th time slot; and M is an integer greater than or equal to 0.

[0316] In some embodiments of the present application, the second time slot offset is configured through radio resource control RRC signaling, media access control element MAC CE or downlink control information DCI.

[0317] In some embodiments of the present application, the second time slot offset is configured by a value range of T1 to T2 of M, where T1 represents the minimum value of M, and T2 represents the maximum value of M, and T1 and T2 are preset.

[0318] In some embodiments of the present application, the value range of M is 0-16, or the value range of M is 1-16.

[0319] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0320] In some embodiments of the present application, the communication unit 410 is further used to: obtain first indication information, where the first indication information is used to indicate a third time slot offset additionally added to the target SRS resource group or the SRS resources in the target SRS resource group.

[0321] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, the second time slot offset is a time slot offset of an SRS resource level configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate an additional addition of the third time slot offset for the SRS resources in the target SRS resource group that are not configured with the second time slot offset; the communication unit 410 is also used to: send the target SRS resource based on the first time slot offset and the third time slot offset.

[0322] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, and the second time slot offset is a time slot offset of the SRS resource level configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate that the third time slot offset is additionally added for the SRS resources in the target SRS resource group configured with the second time slot offset; the communication unit 410 is also used to: send the target SRS resource based on the second time slot offset and the third time slot offset.

[0323] In some embodiments of the present application, the first indication information is used to indicate the third time slot offset additionally added to all SRS resources in the target SRS resource group or the target SRS resource group.

[0324] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, and the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group, and the communication unit 410 is also used to: send the target SRS resource based on the first time slot offset and the third time slot offset.

[0325] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, and the second time slot offset is a time slot offset of the SRS resource level configured for part or all of the SRS resources in the target SRS resource group. The communication unit 410 is also used to: send the target SRS resource based on the second time slot offset and the third time slot offset.

[0326] In some embodiments of the present application, the first indication information is carried in downlink control information DCI.

[0327] In some embodiments of the present application, the first indication information indicates the third time slot offset through at least one bit.

[0328] In some embodiments of the present application, the number of the at least one bit is preset, or the number of the at least one bit is configured by a high-level parameter.

[0329] In some embodiments of the present application, the third time slot offset is N; the N represents the Nth or N+1th time slot, or the N represents the Nth or N+1th valid time slot, and the N is an integer greater than or equal to 0.

[0330] In some embodiments of the present application, the value range of N is 0-16, or the value range of N is 1-16.

[0331] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0332] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0333] In some embodiments of the present application, the first time slot offset is K; the K represents the Kth or K+1th valid time slot, or the K represents the Kth or K+1th time slot; the K is an integer greater than or equal to 0.

[0334] In some embodiments of the present application, the first time slot offset is configured by a value range of T3 to T4 of K, where T3 represents the minimum value of K, and T4 represents the maximum value of K, and T3 and T4 are preset.

[0335] In some embodiments of the present application, the value range of K is 0-16, or the value range of K is 1-16.

[0336] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0337] In some embodiments of the present application, the first time slot offset is K, and K is an integer greater than or equal to 0; or, part or all of the SRS resources in the target SRS resource group are configured with a second time slot offset of the SRS resource level, and the second time slot offset is M, and M is an integer greater than or equal to 0; or, the target SRS resource group or the SRS resources in the target SRS resource group are additionally added with a third time slot offset, and the third time slot offset is N, and N is an integer greater than or equal to 0;

[0338] The time slot used to send the target SRS resource is the second time slot. When K represents the Kth or K+1th valid time slot, M represents the Mth or M+1th valid time slot, or N represents the Nth or N+1th time slot, the second time slot is located within G time slots after the first time slot where the trigger signaling is located, and G is an integer greater than 0.

[0339] In some embodiments of the present application, the G time slots are G uplink time slots.

[0340] In some embodiments of the present application, the G is predefined, or the G is configured by a high-level parameter.

[0341] In some embodiments of the present application, the communication unit 410 is also used to: receive configuration information, the configuration information is used to configure the first time slot offset and / or the second time slot offset, the second time slot offset is an SRS resource level time slot offset configured for part or all of the SRS resources in the target SRS resource group.

[0342] In some embodiments of the present application, the configuration information is carried in radio resource control RRC signaling.

[0343] In some embodiments of the present application, the communication unit 410 is also used to: obtain update information, the update information is used to update the first time slot offset and / or the second time slot offset, the second time slot offset is an SRS resource level time slot offset configured for part or all of the SRS resources in the target SRS resource group.

[0344] In some embodiments of the present application, the update information is carried in a media access control element MAC CE.

[0345] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Fig.12 The terminal device 400 shown may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the terminal device 400 are respectively to implement Figure 4 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0346] Fig.13 is a schematic block diagram of a terminal device 500 according to an embodiment of the present application. Fig.13 As shown, the terminal device 500 may include: an acquisition unit 510, which acquires a first time domain range after a first time slot where a trigger signal is located, and the trigger signal is used to trigger the terminal device to send a target detection reference signal SRS resource group; a control unit 520, which is used to control the reception of downlink control information DCI 2_0 based on the first time domain range.

[0347] In some embodiments of the present application, the first time domain range does not allow the reception of the DCI 2_0; or, the first time domain range allows the reception of the DCI 2_0, and the time slot used to send the target SRS resource in the target SRS resource group is the second time slot, and the time slot structure of the second time slot does not change.

[0348] In some embodiments of the present application, the time slot used to send the target SRS resource in the target SRS resource group is the second time slot, and the first time domain range includes the time slots between the first time slot and the second time slot.

[0349] In some embodiments of the present application, the first time domain range includes the first time slot and the second time slot.

[0350] In some embodiments of the present application, the first time domain range includes P time slots after the first time slot, or the first time domain range is a time domain range with a time length of Q.

[0351] In some embodiments of the present application, the P is predefined, or the P is configured by a high-level parameter.

[0352] In some embodiments of the present application, the Q is predefined, or the Q is configured by high-level parameters.

[0353] In some embodiments of the present application, the control unit 720 is further configured to: based on the DCI 2_0, send part of the SRS symbols in the target SRS resource on uplink symbols that are not modified into downlink symbols.

[0354] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Fig.13 The terminal device 500 shown may correspond to the corresponding subject in executing the method 300 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the terminal device 500 are respectively to implement Fig.11 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0355] Fig.14 600 is a schematic block diagram of a network device 600 according to an embodiment of the present application. Fig.14 As shown, the network device 600 may include: a communication unit 610, used to send a trigger signaling, wherein the trigger signaling is used to trigger the terminal device to send a target detection reference signal SRS resource group, and the target SRS resource group is configured with a first time slot offset, and the first time slot offset can be used to determine the time slot position for sending the target SRS resource in the SRS resource group.

[0356] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, and the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group; the communication unit 610 is also used to: receive the target SRS resource in the target SRS resource group based on the first time slot offset.

[0357] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, where the second time slot offset is a time slot offset of an SRS resource level configured for part or all of the SRS resources in the target SRS resource group; the communication unit 610 is further configured to:

[0358] A target SRS resource in the target SRS resource group is received based on the second time slot offset.

[0359] In some embodiments of the present application, part or all of the SRS resources in the target SRS resource group are configured with a second time slot offset at the SRS resource level; the second time slot offset is M, where M represents the Mth or M+1th valid time slot, or, M represents the Mth or M+1th time slot; and M is an integer greater than or equal to 0.

[0360] In some embodiments of the present application, the second time slot offset is configured through radio resource control RRC signaling, media access control element MAC CE or downlink control information DCI.

[0361] In some embodiments of the present application, the second time slot offset is configured by a value range of T1 to T2 of M, where T1 represents the minimum value of M, and T2 represents the maximum value of M, and T1 and T2 are preset.

[0362] In some embodiments of the present application, the value range of M is 0-16, or the value range of M is 1-16.

[0363] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0364] In some embodiments of the present application, the communication unit 610 is further used to: send first indication information, where the first indication information is used to indicate a third time slot offset that is additionally added to the target SRS resource group or the SRS resources in the target SRS resource group.

[0365] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, the second time slot offset is a time slot offset of an SRS resource level configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate an additional addition of the third time slot offset for the SRS resources in the target SRS resource group that are not configured with the second time slot offset; the communication unit 610 is also used to: receive the target SRS resource based on the first time slot offset and the third time slot offset.

[0366] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, and the second time slot offset is a time slot offset of the SRS resource level configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate that the third time slot offset is additionally added for the SRS resources in the target SRS resource group configured with the second time slot offset; the communication unit 610 is also used to: receive the target SRS resource based on the second time slot offset and the third time slot offset.

[0367] In some embodiments of the present application, the first indication information is used to indicate the third time slot offset additionally added to all SRS resources in the target SRS resource group or the target SRS resource group.

[0368] In some embodiments of the present application, the target SRS resource is not configured with a second time slot offset, and the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group, and the communication unit 610 is also used to: receive the target SRS resource based on the first time slot offset and the third time slot offset.

[0369] In some embodiments of the present application, the target SRS resource is configured with a second time slot offset, where the second time slot offset is a time slot offset of an SRS resource level configured for some or all SRS resources in the target SRS resource group, and the communication unit 610 is further used to:

[0370] The target SRS resource is received based on the second time slot offset and the third time slot offset.

[0371] In some embodiments of the present application, the first indication information is carried in downlink control information DCI.

[0372] In some embodiments of the present application, the first indication information indicates the third time slot offset through at least one bit.

[0373] In some embodiments of the present application, the number of the at least one bit is preset, or the number of the at least one bit is configured by a high-level parameter.

[0374] In some embodiments of the present application, the third time slot offset is N; the N represents the Nth or N+1th time slot, or the N represents the Nth or N+1th valid time slot, and the N is an integer greater than or equal to 0.

[0375] In some embodiments of the present application, the value range of N is 0-16, or the value range of N is 1-16.

[0376] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit the target SRS resource; and / or, the valid time slot refers to a time slot in which the SRS can be used to transmit at least one symbol of the target SRS resource; and / or, the valid time slot refers to a symbol position corresponding to the target SRS resource that can be used for uplink transmission; and / or, the valid time slot refers to at least one symbol position among the symbol positions corresponding to the target SRS resource that can be used for uplink transmission.

[0377] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0378] In some embodiments of the present application, the first time slot offset is K; the K represents the Kth or K+1th valid time slot, or the K represents the Kth or K+1th time slot; the K is an integer greater than or equal to 0.

[0379] In some embodiments of the present application, the first time slot offset is configured by a value range of T3 to T4 of K, where T3 represents the minimum value of K, and T4 represents the maximum value of K, and T3 and T4 are preset.

[0380] In some embodiments of the present application, the value range of K is 0-16, or the value range of K is 1-16.

[0381] In some embodiments of the present application, the valid time slot refers to a time slot that can be used to transmit all SRS resources in the target SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the target SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the target SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the target SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the target SRS resource group that can be used for uplink transmission.

[0382] In some embodiments of the present application, the first time slot offset is K, and K is an integer greater than or equal to 0; or, some or all of the SRS resources in the target SRS resource group are configured with a second time slot offset at the SRS resource level, and the second time slot offset is M, and M is an integer greater than or equal to 0; or, the target SRS resource group or the SRS resources in the target SRS resource group are additionally provided with a third time slot offset, and the third time slot offset is N, and N is an integer greater than or equal to 0; the time slot used to receive the target SRS resource is the second time slot, and when K represents the Kth or K+1th valid time slot, M represents the Mth or M+1th valid time slot, or N represents the Nth or N+1th time slot, the second time slot is located within G time slots after the first time slot where the trigger signaling is located, and G is an integer greater than 0.

[0383] In some embodiments of the present application, the G time slots are G uplink time slots.

[0384] In some embodiments of the present application, the G is predefined, or the G is configured by a high-level parameter.

[0385] In some embodiments of the present application, the communication unit 610 is also used to: send configuration information, wherein the configuration information is used to configure the first time slot offset and / or the second time slot offset, and the second time slot offset is an SRS resource level time slot offset configured for part or all of the SRS resources in the target SRS resource group.

[0386] In some embodiments of the present application, the configuration information is carried in radio resource control RRC signaling.

[0387] In some embodiments of the present application, the communication unit 610 is also used to: send update information, wherein the update information is used to update the first time slot offset and / or the second time slot offset, and the second time slot offset is a time slot offset at the SRS resource level configured for part or all of the SRS resources in the target SRS resource group.

[0388] In some embodiments of the present application, the update information is carried in a media access control element MAC CE.

[0389] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Fig.14 The network device 600 shown may correspond to the corresponding subject in the method 200 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the network device 600 are respectively to implement Figure 4 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0390] Fig.15 is a schematic block diagram of a network device 700 according to an embodiment of the present application. Fig.15 As shown, the network device 700 may include: an acquisition unit 710, used to acquire a first time domain range after a first time slot where a trigger signal is located, and the trigger signal is used to trigger a terminal device to send a target detection reference signal SRS resource group; a control unit 720, used to control the sending of downlink control information DCI 2_0 based on the first time domain range.

[0391] In some embodiments of the present application, the first time domain range does not allow the DCI 2_0 to be sent; or, the first time domain range allows the DCI 2_0 to be sent, and the time slot used to receive the target SRS resource in the target SRS resource group is the second time slot, and the time slot structure of the second time slot does not change.

[0392] In some embodiments of the present application, the time slot used to receive the target SRS resource in the target SRS resource group is the second time slot, and the first time domain range includes the time slots between the first time slot and the second time slot.

[0393] In some embodiments of the present application, the first time domain range includes the first time slot and the second time slot.

[0394] In some embodiments of the present application, the first time domain range includes P time slots after the first time slot, or the first time domain range is a time domain range with a time length of Q.

[0395] In some embodiments of the present application, the P is predefined, or the P is configured by a high-level parameter.

[0396] In some embodiments of the present application, the Q is predefined, or the Q is configured by high-level parameters.

[0397] In some embodiments of the present application, the communication unit 610 is further configured to: based on the DCI 2_0, receive part of the SRS symbols in the target SRS resource on uplink symbols that are not modified into downlink symbols.

[0398] It should be understood that the device embodiment and the method embodiment may correspond to each other, and similar descriptions may refer to the method embodiment. Specifically, Fig.15 The network device 700 shown may correspond to the corresponding subject in the method 300 of the embodiment of the present application, and the aforementioned and other operations and / or functions of each unit in the network device 700 are respectively to implement Fig.11 For the sake of brevity, the corresponding processes in each method are not repeated here.

[0399] The communication device of the embodiment of the present application is described above from the perspective of functional modules in conjunction with the accompanying drawings. It should be understood that the functional modules can be implemented in hardware form, can also be implemented by software instructions, and can also be implemented by a combination of hardware and software modules.

[0400] Specifically, each step of the method embodiment in the embodiment of the present application can be completed by the hardware integrated logic circuit and / or software instructions in the processor. The steps of the method disclosed in the embodiment of the present application can be directly reflected as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor.

[0401] Optionally, the software module may be located in a mature storage medium in the art, such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps in the above method embodiment in combination with its hardware.

[0402] For example, the acquisition unit and the communication unit mentioned above may be implemented by a processor and a transceiver respectively.

[0403] Fig.16 800 is a schematic structural diagram of a communication device according to an embodiment of the present application. Fig.16 As shown, the communication device 800 may include a processor 810. The processor 810 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

[0404] Please continue to see Fig.16The communication device 800 may further include a memory 820. The memory 820 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 810. The processor 810 may call and run a computer program from the memory 820 to implement the method in the embodiment of the present application. The memory 820 may be a separate device independent of the processor 810, or may be integrated in the processor 810. Please continue to refer to Fig.16 , the communication device 800 may further include a transceiver 830. The processor 810 may control the transceiver 830 to communicate with other devices, specifically, to send information or data to other devices, or to receive information or data sent by other devices. The transceiver 830 may include a transmitter and a receiver. The transceiver 830 may further include an antenna, and the number of antennas may be one or more. It should be understood that the various components in the communication device 800 are connected via a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to a data bus.

[0405] It should also be understood that the communication device 800 may be a terminal device of an embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application, that is, the communication device 800 of the embodiment of the present application may correspond to the terminal device 400 or 500 in the embodiment of the present application, and may correspond to the corresponding subject in the method 200 or 300 according to the embodiment of the present application, for the sake of brevity, it will not be repeated here. Similarly, the communication device 800 may be a network device of the embodiment of the present application, and the communication device 800 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. That is to say, the communication device 800 of the embodiment of the present application may correspond to the network device 600 or 700 in the embodiment of the present application, and may correspond to the corresponding subject in the method 200 or 400 according to the embodiment of the present application, for the sake of brevity, it will not be repeated here.

[0406] In addition, a chip is also provided in the embodiments of the present application. For example, the chip may be an integrated circuit chip, which has the ability to process signals and can implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. The chip may also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc. Optionally, the chip can be applied to various communication devices, so that the communication device equipped with the chip can execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application.

[0407] Fig.17 is a schematic structural diagram of a chip 900 according to an embodiment of the present application. Fig.17As shown, the chip 900 includes a processor 910. The processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application. Fig.17 The chip 900 may further include a memory 920. The processor 910 may call and run a computer program from the memory 920 to implement the method in the embodiment of the present application. The memory 920 may be used to store indication information, and may also be used to store codes, instructions, etc. executed by the processor 910. The memory 920 may be a separate device independent of the processor 910, or may be integrated in the processor 910. Please continue to refer to Fig.17 The chip 900 may further include an input interface 930. The processor 910 may control the input interface 930 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips. Fig.17 The chip 900 may further include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0408] It should be understood that the chip 900 can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding process implemented by the network device in each method of the embodiment of the present application, and can also implement the corresponding process implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, it is not repeated here. It should also be understood that the various components in the chip 900 are connected through a bus system, wherein the bus system includes a power bus, a control bus, and a status signal bus in addition to a data bus.

[0409] The processors mentioned above may include but are not limited to: general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc.

[0410] The processor can be used to implement or execute the methods, steps and logic block diagrams disclosed in the embodiments of the present application. The steps of the method disclosed in the embodiments of the present application can be directly embodied as a hardware decoding processor, or a combination of hardware and software modules in the decoding processor. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an erasable programmable memory, a register, etc. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.

[0411] The memory mentioned above includes, but is not limited to: volatile memory and / or non-volatile memory. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM) or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAMbus RAM (DR RAM).

[0412] It should be noted that the memory described herein is intended to include these and any other suitable types of memory.

[0413] In an embodiment of the present application, a computer-readable storage medium is further provided for storing a computer program. The computer-readable storage medium stores one or more programs, and the one or more programs include instructions, which, when executed by a portable electronic device including a plurality of application programs, enable the portable electronic device to execute the method of the embodiment shown in method 200 or 300.

[0414] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0415] Optionally, the computer-readable storage medium can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0416] A computer program product is also provided in an embodiment of the present application, including a computer program.

[0417] Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0418] Optionally, the computer program product can be applied to the mobile terminal / terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal / terminal device in the various methods of the embodiments of the present application. For the sake of brevity, they are not repeated here.

[0419] The present application also provides a computer program in an embodiment. When the computer program is executed by a computer, the computer can execute the method in the embodiment shown in method 200 or 300 .

[0420] Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program runs on a computer, the computer executes the corresponding processes implemented by the network device in the various methods in the embodiments of the present application. For the sake of brevity, they are not described here.

[0421] In addition, the embodiment of the present application also provides a communication system, which may include the terminal device and the network device involved above to form a communication system as follows: Figure 1 The communication system 100 shown is not described in detail for the sake of brevity. It should be noted that the term "system" and the like in this document may also be referred to as "network management architecture" or "network system" and the like.

[0422] It should also be understood that the terms used in the embodiments of the present application and the appended claims are for the purpose of describing specific embodiments only and are not intended to limit the embodiments of the present application.

[0423] For example, as used in the embodiments of the present application and the appended claims, the singular forms "a," "said," "above," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0424] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the embodiments of the present application.

[0425] If implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in the embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory, a random access memory, a magnetic disk or an optical disk.

[0426] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0427] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other ways.

[0428] For example, the division of units or modules or components in the device embodiment described above is only a logical function division, and there may be other division methods in actual implementation. For example, multiple units or modules or components can be combined or integrated into another system, or some units or modules or components can be ignored or not executed.

[0429] For another example, the units / modules / components described above as separation / display components may or may not be physically separated, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units / modules / components may be selected according to actual needs to achieve the purpose of the embodiments of the present application.

[0430] Finally, it should be noted that the mutual coupling or direct coupling or communication connection shown or discussed above may be an indirect coupling or communication connection through some interfaces, devices or units, which may be electrical, mechanical or other forms.

[0431] The above contents are only specific implementation methods of the embodiments of the present application, but the protection scope of the embodiments of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or replacements within the technical scope disclosed in the embodiments of the present application, which should be included in the protection scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be based on the protection scope of the claims.

Claims

1. A wireless communication method, It is characterized in that Applied to a terminal device, the method comprises: Receiving a radio resource control RRC message sent by a network device, where the RRC message is used to indicate a first time slot offset; receiving first indication information sent by the network device, where the first indication information is used to indicate a third time slot offset; Receiving a trigger signaling sent by the network device, where the trigger signaling is used to trigger the terminal device to send an SRS on an aperiodic sounding reference signal SRS resource group; The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for the terminal device to send the SRS on the aperiodic SRS resource group; Based on the first time slot offset and the third time slot offset, SRS is sent on the target SRS resource, wherein the target SRS resource is not configured with a second time slot offset, the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the SRS resource group, and the first indication information is used to indicate an additional increase in the third time slot offset for the SRS resources in the SRS resource group that are not configured with the second time slot offset.

2. The method according to claim 1, It is characterized in that The RRC message includes slotOffset A parameter indicates the first time slot offset.

3. The method according to claim 1 or 2, It is characterized in that The first indication information is carried in downlink control information DCI.

4. The method according to claim 1 or 2, It is characterized in that The third time slot offset is N; N represents the Nth or N+1th time slot, or, N represents the Nth or N+1th valid time slot, and N is an integer greater than or equal to 0.

5. The method according to claim 1 or 2, It is characterized in that The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for sending the SRS by the terminal device on the non-periodic SRS resource group, specifically including: The time slot position of the target SRS resource for sending SRS by the terminal device on the non-periodic SRS resource group is: the time slot where the trigger signaling is located plus the first time slot offset K and the third time slot offset N, where N represents the N+1th time slot.

6. The method according to claim 4, It is characterized in that The valid time slot refers to a time slot that can be used to transmit all SRS resources in the SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the SRS resource group that can be used for uplink transmission.

7. The method according to claim 1 or 2, It is characterized in that The first time slot offset is K; K represents the Kth or K+1th valid time slot, or K represents the Kth or K+1th time slot; K is an integer greater than or equal to 0.

8. The method according to claim 7, It is characterized in that The first time slot offset is configured through the value range T3~T4 of K, where T3 represents the minimum value of K, and T4 represents the maximum value of K, and T3 and T4 are preset.

9. The method according to claim 7, It is characterized in that The value range of K is 0~16, or the value range of K is 1~16.

10. A wireless communication method, It is characterized in that Applied to a network device, the method comprises: Sending a radio resource control RRC message to the terminal device, where the RRC message is used to indicate a first time slot offset; Sending first indication information to the terminal device, where the first indication information is used to indicate a third time slot offset; Sending a trigger signaling to the terminal device, wherein the trigger signaling is used to trigger the terminal device to send an SRS on an aperiodic sounding reference signal SRS resource group; wherein the first time slot offset and the third time slot offset are used to determine a time slot position of a target SRS resource for the terminal device to send an SRS on the aperiodic SRS resource group; Based on the first time slot offset and the third time slot offset, the SRS is received on the target SRS resource, wherein the target SRS resource is not configured with a second time slot offset, the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate an additional increase in the third time slot offset for the SRS resources in the target SRS resource group that are not configured with the second time slot offset.

11. The method according to claim 10, It is characterized in that The RRC message includes slotOffset A parameter indicates the first time slot offset.

12. The method according to claim 10 or 11, It is characterized in that The first indication information is carried in downlink control information DCI.

13. The method according to claim 10 or 11, It is characterized in that The third time slot offset is N; N represents the Nth or N+1th time slot, or, N represents the Nth or N+1th valid time slot, and N is an integer greater than or equal to 0.

14. The method according to claim 10 or 11, It is characterized in that The first time slot offset and the third time slot offset are used to determine the time slot position at which the terminal device sends the SRS on the non-periodic SRS resource group, specifically including: The time slot position at which the terminal device sends the SRS on the non-periodic SRS resource group is: the time slot where the trigger signaling is located plus the first time slot offset K and the third time slot offset N, wherein N represents the N+1th time slot.

15. The method according to claim 13, It is characterized in that The valid time slot refers to a time slot that can be used to transmit all SRS resources in the SRS resource group; and / or, the valid time slot refers to the time slot that can be used to transmit one or more SRS resources in the SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to all SRS resources in the SRS resource group; and / or, the valid time slot refers to a time slot that can be used to transmit the symbol position corresponding to one or more SRS resources in the SRS resource group; and / or, the valid time slot refers to the symbol position corresponding to all SRS resources in the SRS resource group that can be used for uplink transmission; and / or, the valid time slot refers to the symbol position corresponding to one or more SRS resources in the SRS resource group that can be used for uplink transmission.

16. The method according to claim 10 or 11, It is characterized in that The first time slot offset is K; K represents the Kth or K+1th valid time slot, or K represents the Kth or K+1th time slot; K is an integer greater than or equal to 0.

17. The method according to claim 16, It is characterized in that The first time slot offset is configured through the value range T3~T4 of K, where T3 represents the minimum value of K, and T4 represents the maximum value of K, and T3 and T4 are preset.

18. The method according to claim 17, It is characterized in that The value range of K is 0~16, or the value range of K is 1~16.

19. A terminal device, It is characterized in that include: A processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 1 to 9.

20. A network device, It is characterized in that include: A processor, a memory and a transceiver, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method according to any one of claims 10 to 18.

21. A terminal device, It is characterized in that The terminal device comprises a communication unit, which is used for: Receiving a radio resource control RRC message sent by a network device, where the RRC message is used to indicate a first time slot offset; receiving first indication information sent by the network device, where the first indication information is used to indicate a third time slot offset; Receiving a trigger signaling sent by the network device, where the trigger signaling is used to trigger the terminal device to send an SRS on an aperiodic sounding reference signal SRS resource group; The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for the terminal device to send the SRS on the aperiodic SRS resource group; Based on the first time slot offset and the third time slot offset, SRS is sent on the target SRS resource, wherein the target SRS resource is not configured with a second time slot offset, the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the SRS resource group, and the first indication information is used to indicate an additional increase in the third time slot offset for the SRS resources in the SRS resource group that are not configured with the second time slot offset.

22. The terminal device according to claim 21, It is characterized in that The RRC message includes slotOffset A parameter indicates the first time slot offset.

23. The terminal device according to claim 21 or 22, It is characterized in that The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for sending the SRS by the terminal device on the non-periodic SRS resource group, specifically including: The time slot position of the target SRS resource for sending SRS by the terminal device on the non-periodic SRS resource group is: the time slot where the trigger signaling is located plus the first time slot offset K and the third time slot offset N, where N represents the N+1th time slot.

24. A network device, It is characterized in that The network device comprises a communication unit, configured to: Sending a radio resource control RRC message to the terminal device, where the RRC message is used to indicate a first time slot offset; Sending first indication information to the terminal device, where the first indication information is used to indicate a third time slot offset; Sending a trigger signaling to the terminal device, where the trigger signaling is used to trigger the terminal device to send an SRS on an aperiodic sounding reference signal SRS resource group; The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for the terminal device to send the SRS on the aperiodic SRS resource group; Based on the first time slot offset and the third time slot offset, the SRS is received on the target SRS resource, wherein the target SRS resource is not configured with a second time slot offset, the second time slot offset is an SRS resource-level time slot offset configured for part or all of the SRS resources in the target SRS resource group, and the first indication information is used to indicate an additional increase in the third time slot offset for the SRS resources in the target SRS resource group that are not configured with the second time slot offset.

25. The network device according to claim 24, It is characterized in that The first time slot offset and the third time slot offset are used to determine the time slot position of the target SRS resource for sending the SRS by the terminal device on the non-periodic SRS resource group, specifically including: The time slot position of the target SRS resource for sending SRS by the terminal device on the non-periodic SRS resource group is: the time slot where the trigger signaling is located plus the first time slot offset K and the third time slot offset N, where N represents the N+1th time slot.

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