Signal transmitting method and apparatus, and signal receiving method and apparatus

Abstract

Embodiments of the present application provide a signal transmitting apparatus configured in a terminal device. The apparatus comprises: a receiver, receiving configuration information of a sounding reference signal (SRS) resource set, the SRS resource set being configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the SRS resource set comprises at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources is used for transmitting SRSs on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources is used for transmitting SRSs on SBFD symbols, and the third group of SRS resources is used for transmitting SRSs on non-SBFD symbols and / or SBFD symbols; and a transmitter, transmitting SRSs on non-SBFD symbols on the basis of a first power control parameter set, and / or transmitting SRSs on SBFD symbols on the basis of a second power control parameter set.

Description

Signaling transmission and reception method and apparatus TECHNICAL FIELD

[0001] Embodiments of the present application relate to the field of communication technology. BACKGROUND

[0002] In Rel-19, SBFD will be formally standardized as a work item (WI). For SBFD, a terminal device can be configured with non-overlapping downlink sub-band and uplink sub-band in the original downlink slot (or symbol) or flexible slot (or symbol), so that the slot (or symbol) becomes an SBFD slot (or symbol). In the SBFD slot, the terminal device can transmit uplink information on the uplink sub-band, or can receive downlink information on the downlink sub-band, i.e., the terminal device works in a half-duplex mode (only receiving or only transmitting), while the network device can work in a full-duplex mode (simultaneous receiving and transmitting). Through SBFD, the terminal device can perform uplink transmission in the original downlink slot or flexible slot, which is equivalent to increasing the time-frequency resources available for uplink transmission, and thus can improve the capacity, coverage, and reduce the latency of uplink transmission.

[0003] FIG. 14 is a schematic diagram of time-frequency domain resources configured with SBFD sub-band. As shown in FIG. 14, a terminal device is configured with SBFD sub-band. The SBFD sub-band includes a downlink sub-band and an uplink sub-band, for example, the uplink sub-band is located between two downlink sub-bands in the frequency domain. The slot in which the SBFD sub-band is located is referred to as an SBFD slot, and the symbol in which the SBFD sub-band is located is referred to as an SBFD symbol. Other slots (or symbols) are referred to as non-SBFD slots (or symbols). It is also possible for a slot to include both SBFD symbols and non-SBFD symbols, which are not listed one by one. By configuring SBFD sub-band in some slots, some additional slots can be used for uplink transmission, thereby facilitating the enhancement of uplink coverage, the improvement of uplink capacity, and the reduction of uplink transmission latency. In embodiments of the present application, “SBFD symbol” can be replaced by “SBFD slot”, and “non-SBFD symbol” can be replaced by “non-SBFD slot”.

[0004] In embodiments of the present application, a terminal device receives configuration information from a network device, which is used to configure the time domain position and / or frequency domain position of the SBFD sub-band. Therefore, the terminal device can know which symbols are SBFD symbols and which symbols are non-SBFD symbols according to the configuration information.

[0005] It should be noted that the above introduction of the technical background is only for facilitating clear and complete description of the technical solutions of the present application and for facilitating understanding of the present application by those skilled in the art. The above technical solutions cannot be considered as known to those skilled in the art merely because they are described in the technical background section of the present application.

[0006] SUMMARY

[0007] The inventors believe that the interference environment in which SBFD symbols and non-SBFD symbols are located is different. For example, there is inter-subband interference in which downlink subband leakage occurs to uplink subband within SBFD symbols, and vice versa. In contrast, there is no such inter-subband interference within non-SBFD symbols. Therefore, independent beams or independent power control can need to be used for transmission in SBFD symbols and transmission in non-SBFD symbols. How a terminal device determines the parameters used for SRS transmission is a problem to be solved.

[0008] To solve at least one of the above problems, embodiments of the present application provide a signal sending method and a signal receiving method and apparatuses.

[0009] According to an aspect of embodiments of the present application, a signal sending apparatus configured in a terminal device is provided, wherein the apparatus comprises:

[0010] a receiver configured to receive configuration information of a set of sounding reference signal (SRS) resources, the set of SRS resources being configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the set of SRS resources comprises at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources being used for transmitting SRS on non-subband full duplex (non-SBFD) symbols, the second group of SRS resources being used for transmitting SRS on SBFD symbols, and the third group of resources being used for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0011] a transmitter configured to transmit SRS on non-SBFD symbols according to a first set of power control parameters, and / or transmit SRS on SBFD symbols according to a second set of power control parameters. According to another aspect of embodiments of the present application, a signal sending apparatus configured in a terminal device is provided, wherein the apparatus comprises:

[0012] According to an aspect of embodiments of the present application, a signal sending apparatus configured in a terminal device is provided, wherein the apparatus comprises:

[0013] a receiver configured to receive configuration information of a set of sounding reference signal (SRS) resources, the set of SRS resources being configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the set of SRS resources comprises at least one of a first group of SRS resources, a second group of SRS resources, and a third group of SRS resources, the first group of SRS resources being configured for transmitting SRS on non-subband full duplex (SBFD) symbols, the second group of SRS resources being configured for transmitting SRS on SBFD symbols, and the third group of SRS resources being configured for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0014] a transmitter configured to transmit SRS on non-SBFD symbols according to a third set of power control parameters, and / or transmit SRS on SBFD symbols according to the third set of power control parameters and / or an offset.

[0015] According to another aspect of embodiments of the present application, a signal receiving apparatus is provided, configured in a network device, wherein the apparatus comprises:

[0016] a transmitter configured to transmit, to a terminal device, configuration information of a set of sounding reference signal (SRS) resources, the set of SRS resources being configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the set of SRS resources comprises at least one of a first group of SRS resources, a second group of SRS resources, and a third group of SRS resources, the first group of SRS resources being configured for transmitting SRS on non-subband full duplex (SBFD) symbols, the second group of SRS resources being configured for transmitting SRS on SBFD symbols, and the third group of SRS resources being configured for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0017] a receiver configured to receive SRS transmitted by the terminal device on non-SBFD symbols according to a first set of power control parameters, and / or receive SRS transmitted by the terminal device on SBFD symbols according to a second set of power control parameters; or

[0018] receive SRS transmitted by the terminal device on non-SBFD symbols according to a third set of power control parameters, and / or receive SRS transmitted by the terminal device on SBFD symbols according to the third set of power control parameters and / or an offset.

[0019] One of the beneficial effects of the embodiments of the present application is that, in a SRS resource set not following the unified TCI state, the terminal device transmits SRS on the non-SBFD symbol according to the first set of power control parameters, and transmits SRS on the SBFD symbol according to the second set of power control parameters. The first set of power control parameters is the set of power control parameters associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources; and the second set of power control parameters is the set of power control parameters associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources. In this way, the terminal device can determine appropriate power control parameters for SRS transmission not following the unified TCI state on the non-SBFD symbol and the SBFD symbol respectively according to the different interference environments in which the non-SBFD symbol and the SBFD symbol are located, thereby avoiding interference with others or ensuring the transmission performance of the terminal device.

[0020] Specific embodiments of the application are disclosed in detail in the following description and claims. Specific embodiments of the application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the application to those skilled in the art. In the drawings, like reference numerals refer to like elements throughout the various figures and embodiments of the application.

[0021] Features described and / or illustrated with respect to one implementation can be used in the same or similar manner in one or more other implementations, in combination with or in place of features in other implementations, or in some cases, deleted.

[0022] It should be emphasized that the term "comprises / comprising" when used in this specification is taken to mean the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps, components or groups thereof. BRIEF DESCRIPTION OF DRAWINGS

[0023] Elements and features of the embodiments of the application described in one or more figures or embodiments can be combined with elements and features illustrated in one or more other figures or embodiments. Additionally, in the drawings, like reference numerals indicate like components throughout the several views, and can be used to indicate corresponding components in more than one embodiment.

[0024] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

[0025] FIG. 2 is a schematic diagram of a signal transmission method according to an embodiment of the present application;

[0026] FIG. 3 is a schematic diagram of a configured SRS resource set according to an embodiment of the present application;

[0027] FIG. 4 is another schematic diagram of a set of SRS resources configured in embodiments of the present application;

[0028] FIG. 5 is another schematic diagram of a set of SRS resources configured in embodiments of the present application;

[0029] FIG. 6 is another schematic diagram of a signal sending method in embodiments of the present application;

[0030] FIG. 7 is another schematic diagram of a set of SRS resources configured in embodiments of the present application;

[0031] FIG. 8 is a schematic diagram of a signal receiving method in embodiments of the present application;

[0032] FIG. 9 is a schematic diagram of a signal sending apparatus in embodiments of the present application;

[0033] FIG. 10 is a schematic diagram of a signal sending apparatus in embodiments of the present application;

[0034] FIG. 11 is a schematic diagram of a signal receiving apparatus in embodiments of the present application;

[0035] FIG. 12 is a schematic diagram of a terminal device in embodiments of the present application;

[0036] FIG. 13 is a schematic diagram of a network device in embodiments of the present application;

[0037] FIG. 14 is a schematic diagram of time-frequency domain resources configured with SBFD subbands in embodiments of the present application. DETAILED DESCRIPTION

[0038] The foregoing and other features of the present application are hereinafter more fully described and understood when considered in connection with the following drawings. In the drawings, specific embodiments of the present application are illustrated, which show the principles of the present application where the same elements are designated with the same reference numerals throughout the several views. It should be understood that the present application is not limited to the embodiments described but can be practiced with modification and alteration within the scope and spirit of the present application. Accordingly, the specification and drawings are to be regarded as illustrative in nature and explanations in the specification express use of the application when the practical operation thereof is either indicated as such or is apparent from the context.

[0039] In embodiments of the present application, the terms "first", "second", and the like are used to distinguish different elements from one another, but do not indicate spatial arrangement or temporal order of the elements, and the elements should not be limited by these terms. The term "and / or" includes any one and all combinations of the associated listed terms. The terms "comprise", "include", "have", and the like, mean the presence of stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0040] In the embodiments of the present application, the singular form "a", "an", and "the" include the plural form, and should be broadly understood as "one" or "a kind of" rather than the meaning of "one"; in addition, the term "said" should be understood as including both the singular form and the plural form, unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to", and the term "based on" should be understood as "at least partially based on", unless the context clearly indicates otherwise.

[0041] In the embodiments of the present application, the term "communication network" or "wireless communication network" can refer to a network conforming to any communication standard, such as Long Term Evolution (LTE), LTE-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), etc.

[0042] In addition, the communication between devices in the communication system can be carried out according to any stage communication protocol, which can include but is not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G, New Radio (NR), future 6G, etc., and / or other currently known or to be developed in the future communication protocols.

[0043] In the embodiments of the present application, the term "network device" refers to, for example, a device that accesses a terminal device to a communication network and provides services for the terminal device in a communication system. The network device can include but is not limited to the following devices: base station (BS), access point (AP), transmission reception point (TRP), broadcast transmitter, mobile management entity (MME), gateway, server, radio network controller (RNC), base station controller (BSC), etc.

[0044] The base station can include, but is not limited to, a Node B (Node B or NB), an evolved Node B (eNode B or eNB), and a 5G base station (gNB), an IAB donor, and the like, and can further include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (for example, a femto, a pico, and the like). Also, the term "base station" can include some or all functions thereof, and each base station can provide communication coverage for a specific geographic area. The term "cell" can refer to a base station and / or its coverage area, depending on the context in which the term is used.

[0045] In the embodiments of the present application, the term "user equipment" (UE) or "terminal equipment" (TE) refers to a device that accesses a communication network through a network device and receives network services, for example. The terminal equipment can be fixed or mobile, and can also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a station, and the like.

[0046] The terminal equipment can include, but is not limited to, the following devices: a cellular phone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, a cordless phone, a smartphone, a smartwatch, a digital camera, and the like.

[0047] For another example, in an Internet of Things (IoT) scenario or the like, the terminal equipment can also be a machine or device that performs monitoring or measurement, and can include, but is not limited to, the following devices: a machine type communication (MTC) terminal, a vehicle-mounted communication terminal, a device to device (D2D) terminal, a machine to machine (M2M) terminal, and the like.

[0048] In addition, the term "network side" or "network device side" refers to the side of the network, which can be a certain base station, or can include one or more network devices as above. The term "user side" or "terminal side" or "terminal device side" refers to the side of the user or terminal, which can be a certain UE, or can include one or more terminal devices as above. In this document, "device" can refer to a network device or a terminal device unless specifically indicated.

[0049] The scenarios of the embodiments of the present application are described below by way of examples, but the present application is not limited thereto.

[0050] FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, which schematically illustrates the case of taking a terminal device and a network device as examples. As shown in FIG. 1, the communication system 100 can include a network device 101 and terminal devices 102 and 103. For simplicity, FIG. 1 illustrates only two terminal devices and one network device as examples, but the embodiments of the present application are not limited thereto.

[0051] In the embodiments of the present application, the network device 101 and the terminal devices 102 and 103 can perform existing services or future implementable services transmission. For example, these services can include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low-latency communication (URLLC), etc.

[0052] It is worth noting that FIG. 1 shows that both terminal devices 102 and 103 are within the coverage of the network device 101, but the present application is not limited thereto. Both terminal devices 102 and 103 can not be within the coverage of the network device 101, or one terminal device 102 is within the coverage of the network device 101 while the other terminal device 103 is outside the coverage of the network device 101.

[0053] In the embodiments of the present application, the signaling can be, for example, radio resource control (RRC) signaling; for example, referred to as RRC message, for example, including MIB, system information, dedicated RRC message; or referred to as RRC information element (IE). The signaling can also be, for example, MAC (Medium Access Control) signaling; or referred to as MAC control element (CE). However, the present application is not limited thereto.

[0054] In the following description, the terms "PDCCH" and "physical downlink control channel" or "downlink control information" can be interchangeable without causing confusion, and the terms "PDSCH" and "physical downlink data channel" or "downlink data" can also be interchangeable. In addition, transmitting or receiving a PDCCH can be understood as transmitting or receiving downlink control information carried by the PDCCH; transmitting or receiving a PDSCH can be understood as transmitting or receiving downlink data carried by the PDSCH.

[0055] The terms "PUCCH" and "physical uplink control channel" or "uplink control information" can be interchangeable, and the terms "PUSCH" and "physical uplink data channel" or "uplink data" can also be interchangeable. In addition, transmitting or receiving a PUCCH can be understood as transmitting or receiving downlink control information carried by the PUCCH; transmitting or receiving a PUSCH can be understood as transmitting or receiving uplink data carried by the PUSCH.

[0056] Rel-17 has standardized a unified transmission configuration indication (TCI). The Rel-17 unified TCI is for sTRP scenarios, where the transmission configuration indication (TCI) field of DCI format 1_1 or DCI format 1_2 indicates one or more TCI states. The DCI format 1_1 or DCI format 1_2 can schedule downlink data, referred to as DCI format 1_1 / 1_2 with DL assignment, or can not schedule downlink data, referred to as DCI format 1_1 / 1_2 without DL assignment.

[0057] The indication or update of the TCI state actually also includes the indication or update of the beam used by the terminal device. For unified TCI, the high-layer parameter "unifiedTCI-StateType" can be configured to use a joint TCI state or a separate TCI state. In the case where the "unifiedTCI-StateType" parameter takes the value of 'joint', the TCI state is a joint TCI state; in the case where the "unifiedTCI-StateType" parameter takes the value of'separate', the TCI state is a downlink TCI state and / or an uplink TCI state. The uplink beam is also referred to as an uplink transmission spatial filter. For unified TCI of Rel-17, one TCI field indicates one joint TCI state, or indicates one downlink TCI state, or indicates one uplink TCI state, or indicates one downlink TCI state and one uplink TCI state.

[0058] One SRS resource set can be configured to not follow the unified TCI state. When the terminal device transmits the SRS on the SRS resource included in the SRS resource set, the parameters (at least one of the power control parameter, the path loss reference signal and the TCI state) used by the SRS transmission are not determined according to the TCI state indicated by the downlink DCI or the TCI state activated by the MAC CE (wherein the MAC CE only activates one TCI state). If the terminal device is configured with SBFD symbols and / or SBFD subbands, when the terminal device transmits the SRS according to the SRS resource set, the SRS transmission can be located in non-SBFD symbols and / or SBFD symbols. In the case where the terminal device is configured with SBFD symbols and / or SBFD subbands and transmits the SRS according to one SRS resource set that does not follow the unified TCI state, how the terminal device determines the parameters (at least one of the power control parameter, the path loss reference signal and the TCI state) used by the SRS transmission is a problem to be solved.

[0059] The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0060] Embodiments of the first aspect

[0061] The embodiments of the present application provide a signal sending method, which is described from the terminal device side.

[0062] FIG. 2 is a schematic diagram of a signal sending method according to an embodiment of the present application. As shown in FIG. 2, the method includes:

[0063] 201, the terminal device receives configuration information of a sounding reference signal (SRS) resource set, the SRS resource set is configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources are used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources are used for transmitting SRS on SBFD symbols, and the third group of SRS resources are used for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0064] 202, the terminal device transmits SRS on non-SBFD symbols according to a first set of power control parameters, and / or transmits SRS on SBFD symbols according to a second set of power control parameters.

[0065] It is worth noting that the above FIG. 2 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and the present application is not limited to the above FIG. 2.

[0066] In some embodiments, the configuration information is carried by a high layer signaling RRC, and the RRC can indicate whether the unified TCI state indicated by the foregoing DCI is applied to the SRS transmission in the SRS resource set through a parameter followUnifiedTCI-StateSRS. If the parameter is not included in the configuration information, or if a SRS resource set is not configured followUnifiedTCI-StateSRS, it means that the SRS resource set is a SRS resource set not following the unified TCI state, or the SRS resource set is a SRS resource set not using or not following the unified TCI state, and the unified TCI state is indicated by the foregoing DCI.

[0067] In some embodiments, the SRS resource set not using the unified TCI state can be a SRS resource set for beam management. For example, the SRS resource set not using the unified TCI state is a periodic or semi-persistent SRS resource set for beam management, but the embodiments of the present application are not limited thereto.

[0068] In some embodiments, the configuration information configures an SRS resource set including at least one SRS resource (represented by an SRS resource ID). FIG. 3 is a schematic diagram of an SRS resource set configured in an embodiment of the present application. As shown in FIG. 3, an SRS resource set not following a unified TCI state includes one or more SRS resources, which can be divided into three categories, i.e., a first group of SRS resources, a second group of SRS resources, and a third group of SRS resources. The first group of SRS resources is used for SRS transmission on non-SBFD symbols, for example, each SRS resource in the first group forms SRS transmission in a periodic manner, and if a certain SRS transmission is located on an SBFD symbol, the SRS transmission is cancelled, so that the SRS transmission in the first group is only located on non-SBFD symbols. Similarly, the second group of SRS resources is used for SRS transmission on SBFD symbols, i.e., each SRS resource in the second group forms SRS transmission in a periodic manner, and if a certain SRS transmission is located on a non-SBFD symbol, the SRS transmission is cancelled, so that the SRS transmission in the second group is only located on SBFD symbols. For the third group of SRS resources, SRS transmission can cross non-SBFD symbols and SBFD symbols, for example, each SRS resource in the third group forms SRS transmission in a periodic manner, and there is no restriction on whether the SRS transmission is located on a non-SBFD symbol or an SBFD symbol.

[0069] For example, the above-mentioned three groups of SRS resources can be distinguished by RRC configuration. For example, the terminal device can be RRC signaling configured as any one of the following configurations A, B, and C.

[0070] Configuration A: transmission is only located on non-SBFD symbols;

[0071] Configuration B: transmission is only located on SBFD symbols;

[0072] Configuration C: transmission can be located on SBFD symbols and / or non-SBFD symbols.

[0073] When the terminal device is configured as A, B or C, it can be configured in units of SRS resources, for example, configured in the RRC parameter SRS-Resource, so that different SRS resources can use different configurations; or in units of SRS resource sets, for example, configured in the RRC parameter SRS-ResourceSet, so that different SRS resource sets can use different configurations; or in units of SRS-Config, for example, configured in the RRC parameter SRS-Config, so that all SRS resources in SRS-Config use the same configuration; or in units of terminal devices, for example, all uplink transmissions (SRS, PUSCH, PUCCH) of the terminal device use the same configuration. The SRS resources in the first group are SRS resources with configuration A, the SRS resources in the second group are SRS resources with configuration B, and the SRS resources in the third group are SRS resources with configuration C.

[0074] For example, the above three groups of SRS resources can be distinguished as follows. One SRS resource can be configured to be associated with the first group of SRS parameters and / or the second group of SRS parameters, i.e., one SRS resource ID (srs-ResourceId) is associated with the first group of SRS parameters and / or the second group of SRS parameters, for example, the first group of SRS parameters and / or the second group of SRS parameters are configured in the SRS-Resource IE. The first group of SRS parameters is used for transmitting SRS on non-SBFD symbols, and the second group of SRS parameters is used for transmitting SRS on SBFD symbols. For example, the first group of parameters or the second group of parameters includes at least one of the SRS time domain resource parameter, the SRS frequency domain resource parameter, and the SRS frequency hopping parameter. For example, when one SRS resource is configured with the first group of SRS parameters and the second group of SRS parameters, the SRS resource is an SRS resource in the third group of SRS resources. For example, when one SRS resource is only configured with the first group of SRS parameters, the SRS resource is an SRS resource in the first group of SRS resources. For example, when one SRS resource is only configured with the second group of SRS parameters, the SRS resource is an SRS resource in the second group of SRS resources.

[0075] In some embodiments, for one SRS resource set that does not follow the unified TCI state, the network device configures a TCI state for the SRS resources in the SRS resource set (which can also be referred to as the TCI state of the SRS resource or the TCI state corresponding to the SRS resource), and the terminal device applies the TCI state of the SRS resource when transmitting SRS using the SRS resource. For example, the terminal device can determine the uplink spatial filter for SRS transmission according to the TCI state.

[0076] In some embodiments, the power control parameter set associated with the TCI state includes at least one of the following: target received power, path loss compensation factor, and closed-loop index. Optionally, the TCI state may also be associated with a path loss reference signal. The terminal device can determine the transmit power for SRS transmission based on the power control parameter set and the path loss reference signal. For example, it can be calculated using the following formula: However, the embodiments in this application are not intended to be limiting.

[0077] Among them, P CMAX,f,c (i) is the maximum power of carrier f in cell c during SRS transmission at time i; P O_SRS,b,f,c (q s ) is the SRS resource set q on the uplink bandwidth part (BWP) b of carrier f in cell c. s Target received power; M SRS,b,f,c (i) is the SRS bandwidth of time i during SRS transmission on the uplink bandwidth portion b of carrier f in cell c; α SRS,b,f,c (q s ) is the SRS resource set q on the uplink bandwidth portion b of carrier f in cell c. s Road loss compensation factor; PL b,f,c (q d ) is the SRS resource set q on the uplink bandwidth portion b of carrier f in cell c. s Based on reference signal q d Downlink path loss estimation; h b,f,c (i,l) represents the power control adjustment state of SRS transmission timing i on the uplink bandwidth portion b of carrier f in cell c, where l is the closed-loop index.

[0078] In some embodiments, for a SRS resource set, the terminal device determines a power control parameter used when transmitting SRS, and uses independent power control parameters to determine the transmission power for non-SBFD symbols and SBFD symbols respectively. Wherein, the SRS transmission within the SRS resource set can be located on non-SBFD symbols, or can be located on SBFD symbols. For example, the terminal device determines the transmission power for SRS transmission on non-SBFD symbols according to a first set of power control parameters, and determines the transmission power for SRS transmission on SBFD symbols according to a second set of power control parameters. That is, the terminal device determines the transmission power to transmit SRS on non-SBFD symbols according to the power control parameters in the first set of power control parameters, and determines the transmission power to transmit SRS on SBFD symbols according to the power control parameters in the second set of power control parameters. Each SRS resource has an ID. Therefore, the terminal device can determine appropriate power control parameters for SRS transmission on non-SBFD symbols and SBFD symbols that do not follow the unified TCI state according to the different interference environments of non-SBFD symbols and SBFD symbols, so as to avoid interference with others, or to ensure the transmission performance of itself.

[0079] In some embodiments, the first set of power control parameters is the set of power control parameters associated with the TCI state of the SRS resource with the smallest ID in the first set, wherein the first set includes the first group of SRS resources and / or the third group of SRS resources, for example, is the union of the first group of SRS resources and the third group of SRS resources; the second set of power control parameters is the set of power control parameters associated with the TCI state of the SRS resource with the smallest ID in the second set, wherein the second set includes the second group of SRS resources and / or the third group of SRS resources, for example, is the union of the second group of SRS resources and the third group of SRS resources.

[0080] It should be noted that in the embodiments of the present application, the "SRS resource with the smallest ID" can also be replaced by "SRS resource with the largest ID" or "SRS resource with a certain specific ID". The embodiments of the present application are not limited thereto.

[0081] The following explains how to determine the TCI state used for SRS transmission.

[0082] In some embodiments, one SRS resource is configured with one TCI state, and a series of SRS transmissions (such as periodic SRS transmissions) are determined by the SRS resource. In the series of SRS transmissions, whether SRS is transmitted on non-SBFD symbols or on SBFD symbols, the terminal device applies the one TCI state when transmitting SRS.

[0083] In some embodiments, one SRS resource is configured with two TCI states (hereinafter also referred to as a first TCI state and a second TCI state), and the SRS resource determines a series of SRS transmissions, in which the terminal device applies the first TCI state when transmitting SRS on non-SBFD symbols and applies the second TCI state when transmitting SRS on SBFD symbols, that is, the first TCI state is used for transmitting SRS on non-SBFD symbols, and the second TCI state is used for transmitting SRS on SBFD symbols. The first TCI state and the second TCI state can be distinguished by configuration or predefinition. For example, the first TCI state in the two TCI states is predefined as the first TCI state, and the second TCI state is the second TCI state, or vice versa. For example, the RRC configures which of the two TCI states is the first TCI state and which is the second TCI state.

[0084] In some embodiments, one SRS resource being configured with one or two TCI states includes that the one SRS resource is RRC-signaled with one or two TCI states, or is MAC CE-indicated with one or two TCI states.

[0085] For example, one SRS resource is configured by RRC IE (RRC parameter) SRS-Resource, and one or two TCI states (such as TCI state ID) are sub-IEs of SRS-Resource and are configured within SRS-Resource.

[0086] For example, one MAC CE can indicate one or two TCI states for each SRS resource in one SRS resource set. For example, one MAC CE can indicate TCI states for one or more SRS resources of one or more cells, wherein the MAC CE indicates one or two TCI states for one SRS resource. For example, the one or more cells belong to one simultaneous update list, and if the MAC CE indicates TCI states for the SRS resource of one cell in the list, the MAC CE applies to all cells in the list. For example, in the case of a semi-persistent or aperiodic SRS resource, the SRS resource can be indicated by the MAC CE with one or two TCI states. For example, “the MAC CE indicates TCI states for one SRS resource” can also be referred to as “the MAC CE updates TCI states for one SRS resource”.

[0087] For another example, one SRS resource can be indicated one TCI state or two TCI states by a MAC CE, and whether one TCI state or two TCI states is indicated by a field in the MAC CE. For example, if a first value is indicated by a field in the MAC CE, it means that one TCI state is indicated for one SRS resource, i.e., there is one TCI state (TCI state ID) field associated with the SRS resource; if a second value is indicated by the field in the MAC CE, it means that two TCI states are indicated for the SRS resource, i.e., there are two TCI state (TCI state ID) fields associated with the SRS resource.

[0088] The following describes how to determine the TCI state associated power control parameter set.

[0089] In some embodiments, one TCI state is associated with one power control parameter set. The power control parameter set is used to determine the transmission power when transmitting SRS on non-SBFD symbols and / or SBFD symbols, that is, for the determined TCI state, the transmission power is determined using the associated power control parameter set, but for SBFD symbols and non-SBFD symbols, independent TCI states are used, so that for non-SBFD symbols and SBFD symbols, the transmission power is determined using independent power control parameters, respectively. That is, within one SRS resource set, the terminal device uses the power control parameter set associated with TCI state A (first power control parameter set) when transmitting SRS on non-SBFD symbols, and uses the power control parameter set associated with TCI state B (second power control parameter set) when transmitting SRS on SBFD symbols, and TCI state A and TCI state B are the same or different.

[0090] In some embodiments, one TCI state is associated with two sets of power control parameters. For example, one TCI state is associated with two sets of power control parameters A and B, the set of power control parameters A is used to determine the transmit power when transmitting SRS on non-SBFD symbols, and the set of power control parameters B is used to determine the transmit power when transmitting SRS on SBFD symbols. For example, TCI state 1 is associated with set of power control parameters A1 and set of power control parameters B1, TCI state 2 is associated with set of power control parameters A2 and set of power control parameters B2, TCI state 1 is the same as or different from TCI state 2, that is, A1 is the same as or different from A2, B1 is the same as or different from B2. For example, within one SRS resource set, the terminal device uses the set of power control parameters A1 (the first set of power control parameters) associated with TCI state 1 when transmitting SRS on non-SBFD symbols, and uses the set of power control parameters B2 (the second set of power control parameters) associated with TCI state 2 when transmitting SRS on SBFD symbols.

[0091] In some embodiments, when the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the first set of power control parameters is the set of power control parameters associated with the first TCI state of the two TCI states.

[0092] In some embodiments, when the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the second set of power control parameters is the set of power control parameters associated with the second TCI state of the two TCI states.

[0093] For example, the terminal device has determined that it needs to transmit SRS according to a set of power control parameters associated with a certain TCI state of a SRS resource, in the case where the number of TCI states of the SRS resource is 2 (i.e. two TCI states are configured), the terminal device selects one of the TCI states. The two TCI states configured for a SRS resource include the aforementioned first TCI state and second TCI state. If the terminal device determines the TCI state for SRS transmission on non-SBFD symbols, it is determined to use the first TCI state; if the terminal device determines the TCI state for SRS transmission on SBFD symbols, it is determined to use the second TCI state. When the TCI state of the SRS resource with the smallest ID above is associated with a set of power control parameters, it can be understood that the first set of power control parameters is the set of power control parameters associated with the first TCI state, and the second set of power control parameters is the set of power control parameters associated with the second TCI state of the two TCI states.

[0094] In some embodiments, when the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources is associated with two sets of power control parameters, the first set of power control parameters is the set of power control parameters for transmitting SRS on non-SBFD symbols of the two sets of power control parameters.

[0095] In some embodiments, when the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources is associated with two sets of power control parameters, the second set of power control parameters is the set of power control parameters for transmitting SRS on SBFD symbols of the two sets of power control parameters.

[0096] For example, the terminal device has determined that it needs to transmit SRS according to a set of power control parameters associated with a certain TCI state (such as the aforementioned first TCI state or second TCI state), in the case where the TCI state is associated with two sets of power control parameters, the terminal device selects one of the sets of power control parameters. The two sets of power control parameters associated with a TCI state include power control parameter set A and power control parameter set B, which are respectively used for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols. If the terminal device determines the set of power control parameters for SRS transmission on non-SBFD symbols, it is determined that the power control parameter set A is the first set of power control parameters; if the terminal device determines the set of power control parameters for SRS transmission on SBFD symbols, it is determined to use the power control parameter set B as the second set of power control parameters.

[0097] The following is illustrated in conjunction with examples.

[0098] In some examples, each SRS resource in the SRS resource set is configured with one TCI state, wherein one TCI state is associated with two sets of power control parameters.

[0099] FIG. 4 is another schematic diagram of a configured SRS resource set in embodiments of the present application. As shown in FIG. 4, for an SRS resource set not following unified TCI state, each SRS resource in the SRS resource set is configured with one TCI state, and each TCI state is associated with two sets of power control parameters, which are respectively used to determine the transmit power when transmitting SRS on non-SBFD symbols and used to determine the transmit power when transmitting SRS on SBFD symbols. For example, the RRC IE of one TCI state includes two sets of power control parameters, the set of power control parameters A includes at least one of target received power p0, path loss compensation factor alpha and closed loop index closedLoopIndex, which are used for SRS transmission on non-SBFD symbols; the set of power control parameters B includes at least one of target received power p0-SBFD, path loss compensation factor alpha-SBFD and closed loop index closedLoopIndex-SBFD, which are used for SRS transmission on SBFD symbols. Optionally, for example, the RRC IE of one TCI state can also include a parameter pathlossReferenceRS-Id indicating a path loss reference signal. The SRS resource set includes a first group of SRS resources, a second group of SRS resources and a third group of SRS resources. The terminal device transmits SRS on non-SBFD symbols according to the set of power control parameters A associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and the third group of SRS resources, and transmits SRS on SBFD symbols according to the set of power control parameters B associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and the third group of SRS resources, i.e., the set of power control parameters A is used as the first set of power control parameters, and the set of power control parameters B is used as the second set of power control parameters. Thus, for SRS transmission within the SRS resource set, the same set of power control parameters is used for SRS transmission on non-SBFD symbols, the same set of power control parameters is used for SRS transmission on SBFD symbols, and two independent sets of power control parameters are respectively used for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols.

[0100] FIG. 4 takes an example that one SRS resource set includes three groups of SRS resources, and the method of the embodiment is also applicable to the case that one SRS resource set includes any two groups of SRS resources or any one group of SRS resources. For example, assuming that one SRS resource set includes only the third group of SRS resources, the terminal device transmits SRS on the non-SBFD symbol according to the power control parameter set A associated with the TCI state of the SRS resource with the smallest ID in the third group of SRS resources, and transmits SRS on the SBFD symbol according to the power control parameter set B associated with the TCI state of the SRS resource with the smallest ID in the third group of SRS resources. For another example, assuming that one SRS resource set includes the first group of SRS resources and the second group of SRS resources, the terminal device transmits SRS on the non-SBFD symbol according to the power control parameter set A associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources, and transmits SRS on the SBFD symbol according to the power control parameter set B associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources.

[0101] In some examples, each SRS resource in the first group of SRS resources is configured with one TCI state, and / or each SRS resource in the second group of SRS resources is configured with one TCI state, and / or each SRS resource in the third group of SRS resources is configured with two TCI states; wherein one TCI state is associated with one power control parameter set.

[0102] Figure 5 is another schematic diagram of a set of SRS resources configured in embodiments of the application. As shown in Figure 5, one TCI state is associated with one set of power control parameters. In a set of SRS resources not following unified TCI state, each SRS resource in a first group of SRS resources is configured with one TCI state, which can be regarded as a first TCI state (including the associated set of power control parameters) for SRS transmission on non-SBFD symbols, each SRS resource in a second group of SRS resources is configured with one TCI state, which can be regarded as a second TCI state (including the associated set of power control parameters) for SRS transmission on SBFD symbols, and each SRS resource in a third group of SRS resources is configured with two TCI states, including the first TCI state and the second TCI state, wherein the first TCI state (including the associated set of power control parameters) is for SRS transmission on non-SBFD symbols, and the second TCI state (including the associated set of power control parameters) is for SRS transmission on SBFD symbols. Optionally, the RRC IE of one TCI state can further include a parameter pathlossReferenceRS-Id indicating a path loss reference signal. The set of SRS resources includes the first group of SRS resources, the second group of SRS resources, and the third group of SRS resources. The terminal device transmits SRS on non-SBFD symbols according to the set of power control parameters associated with the first TCI state of the SRS resource with the smallest ID in the first group of SRS resources and the third group of SRS resources, that is, the first set of power control parameters is the set of power control parameters associated with the first TCI state, and transmits SRS on SBFD symbols according to the set of power control parameters associated with the second TCI state of the SRS resource with the smallest ID in the second group of SRS resources and the third group of SRS resources, that is, the second set of power control parameters is the set of power control parameters associated with the second TCI state. If the number of TCI states of one SRS resource is one, the first TCI state of the SRS resource and the second TCI state of the resource both refer to the unique TCI state of the SRS resource. Thus, for SRS transmission within the set of SRS resources, the same set of power control parameters is used for SRS transmission on non-SBFD symbols, the same set of power control parameters is used for SRS transmission on SBFD symbols, and two independent sets of power control parameters are used for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols, respectively.

[0103] FIG. 5 illustrates an example in which one SRS resource set includes three groups of SRS resources, and the method of the present embodiment is also applicable to the case in which one SRS resource set includes any two groups of SRS resources or any one group of SRS resources. For example, assuming that one SRS resource set includes only the third group of SRS resources, the terminal device transmits SRS on the non-SBFD symbol according to the power control parameter set associated with the first TCI state of the SRS resource with the smallest ID in the third group of SRS resources, and transmits SRS on the SBFD symbol according to the power control parameter set associated with the second TCI state of the SRS resource with the smallest ID in the third group of SRS resources. For another example, assuming that one SRS resource set includes the first group of SRS resources and the second group of SRS resources, the terminal device transmits SRS on the non-SBFD symbol according to the power control parameter set associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources, and transmits SRS on the SBFD symbol according to the power control parameter set associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources.

[0104] The above illustrates how to determine the power control parameter set used to calculate the transmission power of SRS transmitted on the non-SBFD symbol and the SBFD symbol, as described above, the TCI state is also associated with a path loss reference signal for determining the transmission power, and the following illustrates how to determine the path loss reference signal used to calculate the transmission power of SRS transmitted on the non-SBFD symbol and the SBFD symbol.

[0105] In some embodiments, the terminal device transmits SRS on the non-SBFD symbol and / or the SBFD symbol according to the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the SRS resource set.

[0106] For example, as shown in FIG. 3, for SRS transmission in the SRS resource set, regardless of whether it is located in the non-SBFD symbol or the SBFD symbol, the path loss reference signal is the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in all SRS resources included in the SRS resource set.

[0107] In some embodiments, the terminal device also transmits SRS on the non-SBFD symbol according to the first path loss reference signal, and / or transmits SRS on the SBFD symbol according to the second path loss reference signal, wherein the first path loss reference signal is the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources, and / or the second path loss reference signal is the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources.

[0108] For example, as shown in FIG. 3, for SRS transmission in the SRS resource set, the terminal device determines the transmission power for SRS transmission on non-SBFD symbols according to the first path loss reference signal A and determines the transmission power for SRS transmission on SBFD symbols according to the second path loss reference signal B. The first path loss reference signal is a path loss reference signal A associated with a TCI state of an SRS resource with the smallest ID in a first set, wherein the first set includes the first group of SRS resources and the third group of SRS resources; and the second path loss reference signal is a path loss reference signal B associated with a TCI state of an SRS resource with the smallest ID in a second set, wherein the second set includes the second group of SRS resources and the third group of SRS resources.

[0109] In some embodiments, one TCI state is associated with one path loss reference signal.

[0110] For example, one TCI state is associated with one path loss reference signal, and within one SRS resource set, the terminal device uses the path loss reference signal associated with TCI state A when transmitting SRS on non-SBFD symbols and uses the path loss reference signal associated with TCI state B when transmitting SRS on SBFD symbols, wherein the TCI state A and the TCI state B are the same or different, that is, the first path loss reference signal is a path loss reference signal associated with the TCI state A, and the second path loss reference signal is a path loss reference signal associated with the TCI state B.

[0111] In some embodiments, when the SRS resource with the smallest ID in the SRS resource set is configured with two TCI states, the first path loss reference signal or the second path loss reference signal is a path loss reference signal associated with a specific TCI state of the two TCI states, wherein the specific TCI state is the first TCI state or the second TCI state.

[0112] For example, the terminal device has determined that it needs to transmit SRS according to the path loss reference signal associated with the TCI state of a certain SRS resource, and in the case that the number of TCI states of the SRS resource is 2 (i.e., two TCI states are configured, which are the first TCI state and the second TCI state described above), the terminal device selects one of the TCI states. For example, the terminal device determines a common TCI state for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols, and thereby determines a common path loss reference signal, and the common TCI state can be predefined as the first TCI state or the second TCI state.

[0113] In some embodiments, when the SRS resource with the smallest ID in the first set of SRS resources and / or the third set of SRS resources is configured with two TCI states, the first path loss reference signal is the path loss reference signal associated with the first TCI state of the two TCI states; when the SRS resource with the smallest ID in the second set of SRS resources and / or the third set of SRS resources is configured with two TCI states, the second path loss reference signal is the path loss reference signal associated with the second TCI state of the two TCI states.

[0114] For example, the terminal device has determined that it needs to transmit SRS according to the path loss reference signal associated with the TCI state of a certain SRS resource, in the case where the number of TCI states of the SRS resource is 2 (i.e., two TCI states are configured, which are the aforementioned first TCI state and the second TCI state), the terminal device selects one of the TCI states. For example, the terminal device determines the TCI state for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols respectively, thereby determining two independent path loss reference signals, if the terminal device determines the TCI state for SRS transmission on non-SBFD symbols, it is determined to use the first TCI state; if the terminal device determines the TCI state for SRS transmission on SBFD symbols, it is determined to use the second TCI state.

[0115] The following is illustrated in conjunction with examples.

[0116] In some examples, each SRS resource in the set of SRS resources is configured with one TCI state, wherein one TCI state is associated with one path loss reference signal.

[0117] For example, as shown in FIG. 4, the terminal device determines the SRS resource with the smallest ID in the set of SRS resources, i.e., determines the SRS resource with the smallest ID in the first set of SRS resources, the second set of SRS resources, and the third set of SRS resources, and the terminal device determines the path loss reference signal according to the one pathlossReferenceRS-Id associated with the TCI state of the SRS resource. In the set of SRS resources, the terminal device transmits SRS on non-SBFD symbols according to the path loss reference signal (e.g., referred to as the first path loss reference signal), and transmits SRS on SBFD symbols also according to the path loss reference signal (e.g., referred to as the second path loss reference signal). Thus, the SRS transmission in the set of SRS resources uses the same path loss reference signal, i.e., the first path loss reference signal and the second path loss reference signal are the same.

[0118] For example, as shown in FIG. 4, the terminal device transmits SRS on non-SBFD symbols according to the pathloss reference signal (indicated by pathlossReferenceRS-Id, for example, referred to as a first pathloss reference signal) associated with the TCI state of the SRS resource with the smallest ID in the first set of SRS resources and the third set of SRS resources, and transmits SRS on SBFD symbols according to the pathloss reference signal (for example, referred to as a second pathloss reference signal) associated with the TCI state of the SRS resource with the smallest ID in the second set of SRS resources and the third set of SRS resources. Thus, in this SRS resource set, SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols use independent pathloss reference signals, i.e., the first pathloss reference signal and the second pathloss reference signal are not the same.

[0119] In some examples, each SRS resource in the first set of SRS resources is configured with one TCI state, and / or each SRS resource in the second set of SRS resources is configured with one TCI state, and / or each SRS resource in the third set of SRS resources is configured with two TCI states; wherein one TCI state is associated with one pathloss reference signal.

[0120] For example, as shown in FIG. 5, the terminal device determines the SRS resource with the smallest ID in the SRS resource set, i.e., determines the SRS resource with the smallest ID in the first set of SRS resources, the second set of SRS resources, and the third set of SRS resources, and the terminal device determines the pathloss reference signal according to the pathlossReferenceRS-Id associated with a certain specific TCI state of the SRS resource. If the number of TCI states of the SRS resource is 1, the certain specific TCI state is the only TCI state; if the number of TCI states of the SRS resource is 2, the certain specific TCI state is the first TCI state or the second TCI state of the two TCI states, for example, whether it is the first TCI state or the second TCI state can be determined by a predefined manner. In the SRS resource set, the terminal device transmits SRS on non-SBFD symbols according to the pathloss reference signal, and also transmits SRS on SBFD symbols according to the pathloss reference signal. Thus, SRS transmission in the SRS resource set uses the same pathloss reference signal.

[0121] For example, as shown in FIG. 5, the terminal device transmits SRS on non-SBFD symbols according to a first path loss reference signal (for example, referred to as a first path loss reference signal) associated with the first TCI state of the SRS resource with the smallest ID in the first set of SRS resources and the third set of SRS resources, and transmits SRS on SBFD symbols according to a second path loss reference signal (for example, referred to as a second path loss reference signal) associated with the second TCI state of the SRS resource with the smallest ID in the second set of SRS resources and the third set of SRS resources. If the number of TCI states of one SRS resource is 1, the first TCI state of the SRS resource and the second TCI state of the resource both refer to the unique TCI state of the SRS resource. Thus, in the SRS resource set, the SRS transmission on non-SBFD symbols and the SRS transmission on SBFD symbols use independent path loss reference signals.

[0122] The above various embodiments are only exemplarily described, but the present application is not limited thereto, and can be appropriately modified on the basis of the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined. The present application is described by taking two reports as an example, and can be extended to more than two reports, and details are not described herein.

[0123] According to the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission on non-SBFD symbols and SBFD symbols, respectively, according to different interference environments in which the non-SBFD symbols and the SBFD symbols are located, so as to avoid interference with others or ensure the transmission performance of the terminal device.

[0124] Embodiments of the second aspect

[0125] The embodiments of the present application provide a signal transmission method, which is described from the terminal device side, and the same content as the embodiments of the first aspect is omitted. FIG. 6 is another schematic diagram of the signal transmission method according to the embodiments of the present application, as shown in FIG. 6, the method comprises:

[0126] 601, the terminal device receives configuration information of a sounding reference signal (SRS) resource set, the SRS resource set is configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources are used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources are used for transmitting SRS on SBFD symbols, and the third group of SRS resources are used for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0127] 602, the terminal device transmits SRS on non-SBFD symbols according to a third set of power control parameters, and / or transmits SRS on SBFD symbols according to the third set of power control parameters and / or an offset.

[0128] It is worth noting that the above Figure 6 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between the operations can be appropriately adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and the present application is not limited to the above Figure 6.

[0129] The embodiments of 601 can refer to the embodiments of the first aspect, which will not be described here. The difference from the embodiments of the first aspect is that in 602, one TCI state is associated with one set of power control parameters, and for one TCI state, the same set of power control parameters is used for SRS transmission on non-SBFD symbols and SRS transmission on SBFD symbols, but the SRS transmission on SBFD symbols also needs to consider an additional offset.

[0130] For example, as described above, one SRS resource set not following the unified TCI state includes a first group of SRS resources, a second group of SRS resources and a third group of SRS resources, the terminal device determines the transmission power for SRS transmission on non-SBFD symbols according to a third set of power control parameters, and determines the transmission power for SRS transmission on SBFD symbols according to the third set of power control parameters and an offset, wherein the third set of power control parameters is the set of power control parameters associated with the TCI state of the SRS resource with the smallest ID in the SRS resource set. The third set of power control parameters includes at least one of the target received power, the path loss compensation factor and the closed loop index.

[0131] In the embodiments of the present application, the "SRS resource with the smallest ID" can also be replaced by "SRS resource with the largest ID" or "SRS resource with a certain specific ID".

[0132] In some examples, each SRS resource in the SRS resource set is configured with one TCI state, wherein one TCI state is associated with one set of power control parameters.

[0133] FIG. 7 is another schematic diagram of a configured SRS resource set in the embodiments of the present application. In the above embodiments, for example, as shown in FIG. 7, for an SRS resource set not following unified TCI state, each SRS resource in the SRS resource set is configured with one TCI state, and each TCI state is associated with one set of power control parameters. The set of power control parameters associated with the TCI state is used for SRS transmission on non-SBFD symbols (to determine the transmission power for transmission). The set of power control parameters associated with the TCI state and the offset are used for SRS transmission on SBFD symbols (to determine the transmission power for transmission). For example, the offset can be an offset of the target received power, and the new target received power is the sum of the target received power p0 in the third set of power control parameters and the offset offset when determining the transmission power of the SRS transmitted on the SBFD symbol. However, the embodiments of the present application are not limited thereto, for example, the offset can also be an offset of the path loss compensation factor, etc. Here, no longer one by one example.

[0134] In some embodiments, the offset is configured by RRC signaling, or indicated by MAC CE.

[0135] For example, the offset is configured or indicated in units of terminal device, or in units of SRS-Config, or in units of SRS resource set, or in units of SRS resource, or in units of a group of cells. For example, the offset is configured by RRC signaling, and the offset is configured in RRC IE PUSCH-Config, in RRC IE SRS-Config, in RRC IE SRS-ResourceSet, or in RRC IE SRS-Resource. For example, the offset is indicated in units of SRS-Config, and a common offset is used for SRS resources in the same SRS-Config; for example, the offset is indicated in units of SRS resource set, and a common offset is used for SRS resources in the same SRS resource set, and respective offsets are used for different SRS resource sets; for example, the offset is indicated in units of SRS resource, and respective offsets are used for different SRS resources, and the embodiments of the present application are not limited thereto, and examples are not illustrated one by one here.

[0136] In some embodiments, the terminal device further transmits the SRS on the non-SBFD symbol and / or the SBFD symbol according to a third path loss reference signal, the third path loss reference signal being a path loss reference signal associated with a TCI state of an SRS resource with the smallest ID in the SRS resource set. One TCI state is associated with one path loss reference signal.

[0137] For example, as shown in FIG. 7, one TCI state is associated with one path loss reference signal, and the path loss reference signal is determined by pathlossReferenceRS-Id. For SRS transmission in the SRS resource set, the terminal device determines the transmission power for SRS transmission on the non-SBFD symbol and the transmission power for SRS transmission on the SBFD symbol according to the path loss reference signal (the third path loss reference signal) associated with the TCI state of the SRS resource with the smallest ID in the SRS resource set.

[0138] In some examples, each SRS resource in the SRS resource set is configured with one TCI state, wherein one TCI state is associated with one path loss reference signal.

[0139] For example, as shown in FIG. 7, the terminal device determines the SRS resource with the smallest ID in the SRS resource set, and determines the third path loss reference signal according to the pathlossReferenceRS-Id associated with the TCI state of the SRS resource.

[0140] The above embodiments are only illustrative of the embodiments of the present application, but the present application is not limited thereto, and can be appropriately modified on the basis of the above embodiments. For example, the above embodiments can be used alone, or one or more of the above embodiments can be combined.

[0141] Through the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission on non-SBFD symbols and SBFD symbols that do not follow the unified TCI state according to different interference environments in which the non-SBFD symbols and the SBFD symbols are located, thereby avoiding interference with others or ensuring the transmission performance of the terminal device.

[0142] Embodiments of the third aspect

[0143] The embodiments of the present application provide a signal receiving method, which is described from the network device side. The embodiments of the third aspect can be combined with the embodiments of the first and second aspects, and the same content as the embodiments of the first and second aspects will not be described again.

[0144] FIG. 8 is a schematic diagram of a signal receiving method according to an embodiment of the present application. As shown in FIG. 8, the method includes the following steps.

[0145] 801. The network device sends configuration information of a sounding reference signal (SRS) resource set to a terminal device, the SRS resource set being configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources being used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources being used for transmitting SRS on SBFD symbols, and the third group of SRS resources being used for transmitting SRS on non-SBFD symbols and / or SBFD symbols.

[0146] 802. The network device receives SRS transmitted by the terminal device on non-SBFD symbols according to a first set of power control parameters, and / or receives SRS transmitted by the terminal device on SBFD symbols according to a second set of power control parameters; or,

[0147] receiving SRS transmitted by the terminal device on non-SBFD symbols according to a third set of power control parameters, and / or receiving SRS transmitted by the terminal device on SBFD symbols according to the third set of power control parameters and / or an offset.

[0148] It is noticeable that the above Fig. 8 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the execution order between various operations can be properly adjusted, and in addition, some operations can be added or some operations can be reduced. Those skilled in the art can properly modify based on the above description, and the present application is not limited to the above Fig. 8.

[0149] The embodiments of 801-802 can refer to the embodiments 201-202 of the first aspect and the embodiments 601-602 of the second aspect, and the repeated parts will not be described herein.

[0150] The above various embodiments only exemplarily illustrate the embodiments of the present application, but the present application is not limited thereto, and proper modification can be made based on the above various embodiments. For example, the above various embodiments can be used alone, or one or more of the above various embodiments can be combined.

[0151] Through the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission not following the unified TCI state on the non-SBFD symbol and the SBFD symbol according to different interference environments where the non-SBFD symbol and the SBFD symbol are located, so as to avoid interference to others or ensure the transmission performance of itself.

[0152] Embodiments of the fourth aspect

[0153] The embodiments of the present application provide a signal sending device. The device can be a terminal device, or can be one or more components or assemblies configured in the terminal device, and the same content as the embodiments of the first aspect will not be described herein.

[0154] Fig. 9 is a schematic diagram of a signal sending device according to an embodiment of the present application. As shown in Fig. 9, the signal sending device 900 includes:

[0155] a receiver 910, configured to receive configuration information of a sounding reference signal (SRS) resource set, the SRS resource set being configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources being used for transmitting SRS on a non-subband full duplex (SBFD) symbol, the second group of SRS resources being used for transmitting SRS on an SBFD symbol, and the third group of SRS resources being used for transmitting SRS on the non-SBFD symbol and / or the SBFD symbol;

[0156] The transmitter 920 transmits the SRS on the non-SBFD symbol according to the first set of power control parameters, and / or transmits the SRS on the SBFD symbol according to the second set of power control parameters.

[0157] The embodiments of the receiver 910 and the transmitter 920 can refer to 201-202 in the embodiments of the first aspect, and details are not repeated here.

[0158] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The signal sending apparatus 900 can also include other components or modules, and the specific content of these components or modules can refer to related technologies.

[0159] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in FIG. 9, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

[0160] Through the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission on non-SBFD symbols and SBFD symbols that do not follow the unified TCI state according to different interference environments of non-SBFD symbols and SBFD symbols, thereby avoiding interference with others or ensuring the transmission performance of itself.

[0161] Embodiments of the fifth aspect

[0162] The embodiments of the present application provide a signal sending apparatus. The apparatus can be a terminal device, or one or more components or components configured in the terminal device, and the same content as the embodiments of the second aspect is not repeated.

[0163] FIG. 10 is a schematic diagram of a signal sending apparatus according to an embodiment of the present application. As shown in FIG. 10, the signal sending apparatus 1000 includes:

[0164] a receiver 1010, configured to receive configuration information of a set of sounding reference signal (SRS) resources, the set of SRS resources being configured not to follow a unified Transmission Configuration Indicator State (unified TCI State), wherein the set of SRS resources comprises at least one of a first group of SRS resources, a second group of SRS resources and a third group of SRS resources, the first group of SRS resources being used for transmitting SRS on non-subband full duplex (SBFD) symbols, the second group of SRS resources being used for transmitting SRS on SBFD symbols, and the third group of SRS resources being used for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0165] a transmitter 1020, configured to transmit SRS on non-SBFD symbols according to a third set of power control parameters, and / or transmit SRS on SBFD symbols according to the third set of power control parameters and / or an offset.

[0166] For the implementation of the receiver 1010 and the transmitter 1020, refer to 201-202 in the embodiments of the first aspect, which will not be repeated here.

[0167] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The signal sending apparatus 1000 can further include other components or modules, and the specific content of these components or modules can refer to related technologies.

[0168] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in FIG. 10, but those skilled in the art should understand that various related technologies such as bus connection can be adopted. The above components or modules can be realized by hardware facilities such as processors, memories, transmitters, receivers, etc.; the present application is not limited thereto.

[0169] Through the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission not following the unified TCI state on non-SBFD symbols and SBFD symbols respectively according to different interference environments where the non-SBFD symbols and the SBFD symbols are located, thereby avoiding interference with others or ensuring the transmission performance of itself.

[0170] Embodiments of the sixth aspect

[0171] The embodiments of the present application provide a signal receiving apparatus. The apparatus may, for example, be a network device, or one or more components or components configured in the network device, and the same content as the embodiments of the third aspect will not be repeated.

[0172] FIG. 11 is a schematic diagram of a signal receiving apparatus according to an embodiment of the present application. As shown in FIG. 11, the signal receiving apparatus 1100 includes:

[0173] a transmitter 1110 configured to transmit configuration information of a sounding reference signal (SRS) resource set to a terminal device, the SRS resource set being configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources, and a third group of SRS resources, the first group of SRS resources being used for transmitting SRS on non-subband full duplex (SBFD) symbols, the second group of SRS resources being used for transmitting SRS on SBFD symbols, and the third group of SRS resources being used for transmitting SRS on non-SBFD symbols and / or SBFD symbols;

[0174] a receiver 1120 configured to receive SRS transmitted by the terminal device on non-SBFD symbols according to a first set of power control parameters, and / or receive SRS transmitted by the terminal device on SBFD symbols according to a second set of power control parameters; or

[0175] receive SRS transmitted by the terminal device on non-SBFD symbols according to a third set of power control parameters, and / or receive SRS transmitted by the terminal device on SBFD symbols according to the third set of power control parameters and / or an offset.

[0176] The implementation of the transmitter 1110 and the receiver 1120 can refer to the embodiments of 201-202 in the first aspect, and will not be described here.

[0177] It is worth noting that only the components or modules related to the present application are described above, but the present application is not limited thereto. The signal receiving apparatus 1100 can also include other components or modules, and the specific content of these components or modules can refer to related technologies.

[0178] In addition, for the sake of simplicity, only the connection relationship or signal path between the components or modules is exemplarily shown in FIG. 11, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The above components or modules can be implemented by hardware facilities such as processors, memories, transmitters, receivers, etc.; the implementation of the present application is not limited thereto.

[0179] Through the embodiments of the present application, the terminal device can determine appropriate power control parameters for SRS transmission on non-SBFD symbols and SBFD symbols that do not follow the unified TCI state according to different interference environments in which the non-SBFD symbols and the SBFD symbols are located, thereby avoiding interference with others or ensuring the transmission performance of the terminal device.

[0180] Embodiments of the seventh aspect

[0181] Embodiments of the present application also provide a communication system, which can refer to FIG. 1, and the same content as the embodiments of the first to fifth aspects will not be repeated.

[0182] In some embodiments, the communication system 100 can at least include a terminal device and a network device.

[0183] In the embodiments of the present application, the terminal device includes the apparatus shown in FIG. 9 and FIG. 10 of the fourth and fifth aspects, and is configured to perform the method of the first and second aspects. Since the method has been described in detail in the embodiments of the first and second aspects, the content is incorporated herein, and will not be repeated.

[0184] In the embodiments of the present application, the network device includes the apparatus shown in FIG. 11 of the sixth aspect, and is configured to perform the method of the third aspect. Since the method has been described in detail in the embodiments of the third aspect, the content is incorporated herein, and will not be repeated. In addition, the network device performs the conventional operation of the network device, and the network device can also perform the operation corresponding to the operation of the terminal device, for example, the network device receives information / signals from the terminal device, and / or the network device sends information / signals to the terminal device, which is omitted here.

[0185] Embodiments of the present application also provide a terminal device, but the present application is not limited thereto, and can also be other devices.

[0186] FIG. 12 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 12, the terminal device 1200 can include a processor 1210 and a memory 1220; the memory 1220 stores data and programs and is coupled to the processor 1210. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.

[0187] For example, the processor 1210 can be configured to execute a program to implement the signal transmission method according to the embodiments of the first or second aspect.

[0188] As shown in FIG. 12, the terminal device 1200 can further include a communication module 1230, an input unit 1240, a display 1250, and a power supply 1260. The functions of the above components are similar to those of the prior art, which will not be described here. It should be noted that the terminal device 1200 need not necessarily include all the components shown in FIG. 12, and the above components are not essential; and the terminal device 1200 can further include components that are not shown in FIG. 12, which can be referred to the prior art.

[0189] The embodiments of the present application further provide a network device, which can be a base station, but the present application is not limited thereto, and can also be other network devices.

[0190] FIG. 13 is a schematic diagram of a network device according to an embodiment of the present application. As shown in FIG. 13, the network device 1300 can include a processor 1310 (such as a central processing unit, CPU) and a memory 1320, wherein the memory 1320 is coupled to the processor 1310. The memory 1320 can store various data, and further store a program 1330 for information processing, and execute the program 1330 under the control of the processor 1310.

[0191] For example, the processor 1310 can be configured to execute the program to implement the signal receiving method according to the embodiments of the third aspect.

[0192] In addition, as shown in FIG. 13, the network device 1300 can further include a transceiver 1340, an antenna 1350, and the like; the functions of the above components are similar to those of the prior art, which will not be described here. It should be noted that the network device 1300 need not necessarily include all the components shown in FIG. 13; and the network device 1300 can further include components that are not shown in FIG. 13, which can be referred to the prior art.

[0193] The embodiments of the present application further provide a computer program, which, when executed in a terminal device, causes the terminal device to perform the signal sending method according to the embodiments of the first or second aspect.

[0194] The embodiments of the present application further provide a storage medium storing a computer program, which causes a terminal device to perform the signal sending method according to the embodiments of the first or second aspect.

[0195] The embodiments of the present application further provide a computer program, which, when executed in a network device, causes the network device to perform the signal receiving method according to the embodiments of the third aspect.

[0196] The embodiments of the present application further provide a storage medium storing a computer program, wherein the computer program causes a network device to perform the signal receiving method in the embodiments of the third aspect.

[0197] The apparatus and method described above can be implemented by hardware, or by hardware in combination with software. The present application relates to a computer readable program, which, when executed by a logic component, causes the logic component to implement the apparatus or constituent components described above, or causes the logic component to implement the various methods or steps described above. The present application also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, and the like.

[0198] The method / apparatus described in combination with the embodiments of the present application can be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional blocks shown in the figures and / or a combination of one or more of the functional blocks can correspond to each software module of a computer program flow, or to each hardware module. The software modules can correspond to each step shown in the figures, respectively. The hardware modules can be implemented by, for example, fixing the software modules with a field programmable gate array (FPGA).

[0199] The software modules can be located in a RAM memory, a flash memory, a ROM memory, an EPROM memory, an EEPROM memory, a register, a hard disk, a mobile disk, a CD-ROM, or any other form of storage medium known in the art. A storage medium can be coupled to the processor, so that the processor can read information from the storage medium, and write information to the storage medium; or the storage medium can be an integral part of the processor. The processor and the storage medium can be located in an ASIC. The software modules can be stored in a memory of the mobile terminal, or in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a MEGA-SIM card or a large-capacity flash memory device, the software modules can be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0200] One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can be implemented as a general -purpose processor, a Digital Signal Processor (DSP), an Application-Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any appropriate combination thereof, for performing the functions described in this disclosure. One or more of the functional blocks described in the figures and / or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.

[0201] The present disclosure has been described above with the attachment to the specific embodiments, but it should be clear to those skilled in the art that the descriptions are exemplary and are not a limitation on the scope of protection of the present disclosure. Those skilled in the art can make various modifications and changes to the present disclosure according to the spirit and principles of the present disclosure, and these modifications and changes are also within the scope of the present disclosure.

[0202] With regard to the embodiments including the above embodiments, the following notes are also disclosed:

[0203] 1. A signal sending method applied to a terminal device, wherein the method comprises:

[0204] The terminal device receives configuration information of a sounding reference signal (SRS) resource set, the SRS resource set is configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources are used for sending SRS on non-sub-band full duplex (SBFD) symbols, the second group of SRS resources are used for sending SRS on SBFD symbols, and the third group of SRS resources are used for sending SRS on non-SBFD symbols and / or SBFD symbols.

[0205] The terminal device sends SRS on non-SBFD symbols according to a first set of power control parameters, and / or sends SRS on SBFD symbols according to a second set of power control parameters.

[0206] 2. A signal sending method applied to a terminal device, wherein the method comprises:

[0207] The terminal device receives configuration information of a sounding reference signal (SRS) resource set, the SRS resource set is configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources are used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources are used for transmitting SRS on SBFD symbols, and the third group of SRS resources are used for transmitting SRS on non-SBFD symbols and / or SBFD symbols.

[0208] The terminal device transmits SRS on non-SBFD symbols according to a third set of power control parameters, and / or transmits SRS on SBFD symbols according to the third set of power control parameters and / or an offset.

[0209] 3. A signal receiving method applied to a network device, wherein the method comprises:

[0210] The network device transmits configuration information of a sounding reference signal (SRS) resource set to a terminal device, the SRS resource set is configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources and a third group of resources, the first group of SRS resources are used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources are used for transmitting SRS on SBFD symbols, and the third group of SRS resources are used for transmitting SRS on non-SBFD symbols and / or SBFD symbols.

[0211] The network device receives SRS transmitted by the terminal device on non-SBFD symbols according to a first set of power control parameters, and / or receives SRS transmitted by the terminal device on SBFD symbols according to a second set of power control parameters; or,

[0212] SRS transmitted by the terminal device on non-SBFD symbols according to a third set of power control parameters, and / or receives SRS transmitted by the terminal device on SBFD symbols according to the third set of power control parameters and / or an offset.

[0213] 4. A terminal device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to implement the method of any one of appendices 1 or 2.

[0214] 5. A network device comprising a memory having a computer program stored therein and a processor configured to execute the computer program to implement the method of appendix 3.

[0215] 6. A communication system having a terminal device of appendix 4 and a network device of appendix 5.

Claims

1. A signal sending apparatus configured in a terminal device, wherein, The apparatus comprises: a receiver configured to receive configuration information of a set of sounding reference signal (SRS) resources configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the set of SRS resources comprises at least one of a first group of SRS resources for transmitting SRS on non-subband full duplex (SBFD) symbols, a second group of SRS resources for transmitting SRS on SBFD symbols, and a third group of SRS resources for transmitting SRS on non-SBFD symbols and / or SBFD symbols; a transmitter configured to transmit SRS on non-SBFD symbols according to a first set of power control parameters and / or to transmit SRS on SBFD symbols according to a second set of power control parameters.

2. The apparatus of claim 1, wherein, The first set of power control parameters is a set of power control parameters associated with a TCI state of an SRS resource with a smallest identification (ID) in the first group of SRS resources and / or the third group of SRS resources, and the second set of power control parameters is a set of power control parameters associated with a TCI state of an SRS resource with a smallest identification (ID) in the second group of SRS resources and / or the third group of SRS resources.

3. The apparatus of claim 1, wherein, One SRS resource is configured with one or two TCI states, and / or one TCI state is associated with one or two sets of power control parameters.

4. The apparatus of claim 3, wherein, When the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the first set of power control parameters is a set of power control parameters associated with a first TCI state of the two TCI states, the first TCI state being used for transmitting SRS on non-SBFD symbols; When the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the second set of power control parameters is a set of power control parameters associated with a second TCI state of the two TCI states, the second TCI state being used for transmitting SRS on SBFD symbols.

5. The apparatus of claim 3, wherein, When the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources is associated with two sets of power control parameters, the first set of power control parameters is a set of power control parameters of the two sets of power control parameters used for transmitting SRS on non-SBFD symbols; When the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources is associated with two sets of power control parameters, the second set of power control parameters is a set of power control parameters of the two sets of power control parameters used for transmitting SRS on SBFD symbols.

6. The apparatus of claim 1, wherein, Each SRS resource in the SRS resource set is configured with one TCI state, wherein one TCI state is associated with two sets of power control parameters.

7. The apparatus of claim 1, wherein, Each SRS resource in the first group of SRS resources is configured with one TCI state, and / or each SRS resource in the second group of SRS resources is configured with one TCI state, and / or each SRS resource in the third group of SRS resources is configured with two TCI states; wherein one TCI state is associated with one set of power control parameters.

8. The apparatus of claim 1, wherein the transmitter transmits the SRS on the non-SBFD symbol and / or the SBFD symbol according to the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the SRS resource set; or, The transmitter also transmits the SRS on non-SBFD symbols according to the first path loss reference signal, and / or transmits the SRS on SBFD symbols according to the second path loss reference signal; wherein, The first path loss reference signal is the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources, and / or the second path loss reference signal is the path loss reference signal associated with the TCI state of the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources.

9. The apparatus of claim 8, wherein, One TCI state is associated with one path loss reference signal.

10. The apparatus of claim 9, wherein, When the SRS resource with the smallest ID in the SRS resource set is configured with two TCI states, the path loss reference signal is the path loss reference signal associated with a specific TCI state of the two TCI states, wherein the specific TCI state is the first TCI state or the second TCI state; When the SRS resource with the smallest ID in the first group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the first path loss reference signal is the path loss reference signal associated with the first TCI state of the two TCI states, and the first TCI state is used for transmitting the SRS on the non-SBFD symbol; When the SRS resource with the smallest ID in the second group of SRS resources and / or the third group of SRS resources is configured with two TCI states, the second path loss reference signal is the path loss reference signal associated with the second TCI state of the two TCI states, and the second TCI state is used for transmitting the SRS on the SBFD symbol.

11. The apparatus of claim 9, wherein, Each SRS resource in the SRS resource set is configured with one TCI state, wherein one TCI state is associated with one path loss reference signal.

12. The apparatus of claim 9, wherein, Each SRS resource in the first group of SRS resources is configured with one TCI state, and / or each SRS resource in the second group of SRS resources is configured with one TCI state, and / or each SRS resource in the third group of SRS resources is configured with two TCI states; wherein one TCI state is associated with one path loss reference signal.

13. A signal sending apparatus configured to a terminal device, wherein The apparatus comprises: a receiver configured to receive configuration information of a set of sounding reference signal (SRS) resources configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the set of SRS resources comprises at least one of a first group of SRS resources for transmitting SRS on non-subband full duplex (SBFD) symbols, a second group of SRS resources for transmitting SRS on SBFD symbols, and a third group of SRS resources for transmitting SRS on non-SBFD symbols and / or SBFD symbols; a transmitter configured to transmit SRS on non-SBFD symbols according to a third set of power control parameters, and / or transmit SRS on SBFD symbols according to the third set of power control parameters and / or an offset.

14. The apparatus of claim 13, wherein, The third set of power control parameters is a set of power control parameters associated with a TCI state of an SRS resource with a smallest ID in the set of SRS resources.

15. The apparatus of claim 13, wherein, Each SRS resource in the set of SRS resources is configured with one TCI state, wherein one TCI state is associated with one set of power control parameters.

16. The apparatus of claim 13, wherein, The offset is configured by RRC signaling or indicated by a MAC CE.

17. The apparatus of claim 13, wherein, The transmitter is further configured to transmit SRS on non-SBFD symbols and / or SBFD symbols according to a third path loss reference signal, which is a path loss reference signal associated with a TCI state of an SRS resource with a smallest ID in the set of SRS resources.

18. The apparatus of claim 13, wherein, One TCI state is associated with one path loss reference signal.

19. The apparatus of claim 18, wherein, Each SRS resource in the set of SRS resources is configured with one TCI state, wherein one TCI state is associated with one path loss reference signal.

20. An information receiving apparatus configured to a network device, wherein The apparatus comprises: a transmitter configured to transmit, to a terminal device, configuration information of a set of sounding reference signal (SRS) resources configured not to follow a unified transmission configuration indicator state (unified TCI state), wherein the set of SRS resources comprises at least one of a first group of SRS resources for transmitting SRS on non-subband full duplex (SBFD) symbols, a second group of SRS resources for transmitting SRS on SBFD symbols, and a third group of SRS resources for transmitting SRS on non-SBFD symbols and / or SBFD symbols; The resource set is configured not to follow a unified transmission configuration indicator state (unified TCI State), wherein the SRS resource set includes at least one of a first group of SRS resources, a second group of SRS resources, and a third group of resources, the first group of SRS resources being used for transmitting SRS on non-SBFD (sub-band full duplex) symbols, the second group of SRS resources being used for transmitting SRS on SBFD symbols, and the third group of SRS resources being used for transmitting SRS on non-SBFD symbols and / or SBFD symbols; a receiver configured to receive SRS transmitted by the terminal device according to a first set of power control parameters on non-SBFD symbols, and / or receive SRS transmitted by the terminal device according to a second set of power control parameters on SBFD symbols; or receive SRS transmitted by the terminal device according to a third set of power control parameters on non-SBFD symbols, and / or receive SRS transmitted by the terminal device according to the third set of power control parameters and / or an offset on SBFD symbols.

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