WO2023039769A1 - 一种用于天线切换的探测参考信号srs触发方法及其装置 - Google Patents

一种用于天线切换的探测参考信号srs触发方法及其装置 Download PDF

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Publication number
WO2023039769A1
WO2023039769A1 PCT/CN2021/118620 CN2021118620W WO2023039769A1 WO 2023039769 A1 WO2023039769 A1 WO 2023039769A1 CN 2021118620 W CN2021118620 W CN 2021118620W WO 2023039769 A1 WO2023039769 A1 WO 2023039769A1
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Prior art keywords
srs
srs resource
dci
antenna switching
resource set
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PCT/CN2021/118620
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English (en)
French (fr)
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高雪媛
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180002857.5A priority Critical patent/CN116134772A/zh
Priority to PCT/CN2021/118620 priority patent/WO2023039769A1/zh
Publication of WO2023039769A1 publication Critical patent/WO2023039769A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular to a method and device for triggering a Sounding Reference Signal (SRS) for antenna switching.
  • SRS Sounding Reference Signal
  • SRS Signal, sounding reference signal
  • SRS antenna switching is suitable for scenarios where uplink and downlink are reciprocal, and is used for network equipment to obtain downlink channel information.
  • the terminal device may need to change the antenna configuration, such as reducing from 2T4R to 1T4R or 2T2R, or changing from 2T2R to 4T4R, then it is necessary to use a different SRS with the function of "antenna switching"
  • the resource configuration is used for obtaining downlink CSI (Channel State Information, channel state information).
  • the number of antennas will increase to 6Rx or 8Rx, more scenarios are supported by antenna switching, and the corresponding SRS configuration is more complicated.
  • the R15 or R16 version does not support flexible and dynamic antenna switching configuration in BWP (Bandwidth Part, bandwidth part). If the dynamic antenna switching configuration scheme is introduced, the triggering problem will become more complicated. Therefore, methods related to SRS triggering for multiple functions including multiple antenna switching configurations need to be considered.
  • Embodiments of the present application provide a sounding reference signal SRS triggering method and device for antenna switching, which can be applied to 5G NR systems, and can switch more flexibly and quickly or fall back to different antenna switching configurations.
  • the embodiment of the present application provides a sounding reference signal SRS triggering method for antenna switching, the method is applied to a network device, and the method includes:
  • the embodiment of the present application provides another sounding reference signal SRS triggering method for antenna switching, the method is applied to a terminal device, and the method includes:
  • the DCI is used to trigger an SRS resource set, and the SRS resource set and antenna switching corresponding to the configuration.
  • the embodiment of this application provides a communication device, which has some or all of the functions of the network equipment in the method described in the first aspect above, for example, the functions of the communication device may have part or all of the functions in this application
  • the functions in the embodiments may also have the functions of independently implementing any one of the embodiments in the present application.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the foregoing method.
  • the transceiver module is used to support communication between the communication device and other equipment.
  • the communication device may further include a storage module, which is used to be coupled with the transceiver module and the processing module, and stores necessary computer programs and data of the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • the embodiment of the present application provides another communication device, which has some or all functions of the terminal equipment in the method example described in the second aspect above, for example, the communication device may have some of the functions in this application Or the functions in all the embodiments may also have the function of implementing any one embodiment in the present application alone.
  • the functions described above may be implemented by hardware, or may be implemented by executing corresponding software on the hardware.
  • the hardware or software includes one or more units or modules corresponding to the above functions.
  • the structure of the communication device may include a transceiver module and a processing module, and the processing module is configured to support the communication device to perform corresponding functions in the foregoing method.
  • the transceiver module is used to support communication between the communication device and other devices.
  • the communication device may further include a storage module, which is used to be coupled with the transceiver module and the processing module, and stores necessary computer programs and data of the communication device.
  • the processing module may be a processor
  • the transceiver module may be a transceiver or a communication interface
  • the storage module may be a memory
  • an embodiment of the present application provides a communication device, where the communication device includes a processor, and when the processor invokes a computer program in a memory, it executes the method described in the first aspect above.
  • an embodiment of the present application provides a communication device, where the communication device includes a processor, and when the processor invokes a computer program in a memory, it executes the method described in the second aspect above.
  • the embodiment of the present application provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the first aspect above.
  • the embodiment of the present application provides a communication device, the communication device includes a processor and a memory, and a computer program is stored in the memory; the processor executes the computer program stored in the memory, so that the communication device executes The method described in the second aspect above.
  • the embodiment of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the method described in the first aspect above.
  • the embodiment of the present application provides a communication device, the device includes a processor and an interface circuit, the interface circuit is used to receive code instructions and transmit them to the processor, and the processor is used to run the code instructions to make the The device executes the method described in the second aspect above.
  • the embodiment of the present application provides a communication system, the system includes the communication device described in the third aspect and the communication device described in the fourth aspect, or the system includes the communication device described in the fifth aspect and The communication device described in the sixth aspect, or, the system includes the communication device described in the seventh aspect and the communication device described in the eighth aspect, or, the system includes the communication device described in the ninth aspect and the communication device described in the tenth aspect the communication device described above.
  • the embodiment of the present invention provides a computer-readable storage medium, which is used to store instructions used by the above-mentioned terminal equipment, and when the instructions are executed, the terminal equipment executes the above-mentioned first aspect. method.
  • an embodiment of the present invention provides a readable storage medium for storing instructions used by the above-mentioned network equipment, and when the instructions are executed, the network equipment executes the method described in the above-mentioned second aspect .
  • the present application further provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the first aspect above.
  • the present application further provides a computer program product including a computer program, which, when run on a computer, causes the computer to execute the method described in the second aspect above.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the first aspect above.
  • the present application provides a computer program that, when run on a computer, causes the computer to execute the method described in the second aspect above.
  • FIG. 1 is a schematic diagram of an SRS mapping area in a time slot
  • FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 3 is a flow chart of a method for triggering a Sounding Reference Signal (SRS) for antenna switching according to an embodiment of the present application;
  • SRS Sounding Reference Signal
  • FIG. 4 is a flow chart of another SRS triggering method for antenna switching provided by an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another communication device provided by an embodiment of the present application.
  • the uplink SRS can be periodic, semi-persistent or aperiodic SRS, narrowband or broadband, single-port or multi-port.
  • Uplink SRS parameters can be configured from the network device to the terminal device, including port number, frequency domain resource location, time domain resource location, sequence, sequence cycle offset, etc. As shown in Figure 1, in a 5G NR system, the SRS is mapped on up to six symbols of an uplink slot.
  • the network device may configure multiple uplink SRS sets for the terminal device, and one resource set includes one or more SRS resources.
  • One SRS resource can be on N consecutive OFDM (Orthogonal Frequency Division Multiplexing: Orthogonal Frequency Division Multiplexing) symbols, and N can occupy 1, 2, and 4 symbols.
  • the NR system supports the gNB (base station) side to obtain downlink channel information through channel reciprocity to improve downlink data transmission performance.
  • the NR system specially designed the SRS reference signal.
  • SRS resource configurations are also different. For example, several examples are given below:
  • the gNB can configure up to two SRS resource sets, and there is only one SRS resource in one set, and the number of ports is equal to the number of transmitting antennas of the terminal.
  • One of the two SRS resource sets can be configured as periodic, and the other can be configured as aperiodic.
  • the gNB can configure up to two SRS resource sets. There are two SRS resources in one set, and each SRS resource has only one port.
  • the gNB can configure at most two SRS resource sets, one set has two SRS resources, and each SRS resource has two ports.
  • Periodic or semi-persistent SRS resources can only configure one resource set at most, and there are 4 SRS resources with 1 port each; Periodic SRS resources can be configured with up to 2 SRS resource sets, and there are a total of 4 SRS resources in the two SRS resource sets, and these 4 resources are sent in two slots and these 4 resources are sent by different physical antennas.
  • Two resource collections can be configured with 2 resources for each collection, or one collection with 1 and the other with 3 resources, and each resource has only 1 port.
  • a network device (such as a base station) usually configures SRS resources for a terminal based on the UE capability report of the terminal device.
  • UE capabilities supported by terminals of different versions will also be different.
  • the UE capabilities supported by R15 terminals are: t1r2, t1r4, t2r4, t1r4-t2r4, t1r1, t2r2, t4r4;
  • the UE capabilities supported by R16 terminals are: t1r1-t1r2, t1r1-t1r2-t1r4, t1r1-t1r2- t2r2-t2r4, t1r1-t1r2-t2r2-t1r4, t1r1-t1r2-t2r2-t1r4-t2r4, t1r1-t2r2, t1r1-t2r2-t4r4.
  • a typical antenna configuration currently defined is ⁇ 1T6R, 1T8R, 2T6R, 2T8R, [4T6R], 4T8R ⁇ , as shown in Table 1 below.
  • Table 1 SRS antenna switching configuration combinations up to 8 antennas
  • the terminal device may need to change the antenna configuration, such as reducing from 2T4R to 1T4R or 2T2R, or changing from 2T2R to 4T4R.
  • the number of antennas will increase to 6/8Rx, more scenarios are supported by antenna switching, and the corresponding SRS configuration is more complicated.
  • the current SRS triggering request (triggering request) is 3 codepoints (codepoints), and it also needs to be considered SRS triggering of other functional usage (such as “codebook”, “non-codebook”, “beam management”).
  • the R15/16 version does not support flexible and dynamic antenna switching configuration in BWP. If the dynamic antenna switching configuration scheme is introduced, the triggering problem will become more complicated. Therefore, methods related to SRS triggering for multiple functions including multiple antenna switching configurations need to be considered.
  • the present application provides a method for triggering a Sounding Reference Signal (SRS) for antenna switching.
  • SRS Sounding Reference Signal
  • the communication system used in the embodiment of the present application will be described first below.
  • FIG. 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include, but is not limited to, a terminal device and a network device.
  • the number and shape of the devices shown in Figure 2 are for example only and do not constitute a limitation to the embodiment of the application. In practical applications, two or more terminal equipment, two or more network equipment.
  • the communication system shown in FIG. 2 includes one network device 201 and one terminal device 202 as an example.
  • LTE long term evolution
  • 5th generation 5th generation
  • 5G new radio new radio, NR
  • other future new mobile communication systems etc.
  • the network device 201 in this embodiment of the present application is an entity on the network side for transmitting or receiving signals.
  • the network device 201 may be an evolved base station (evolved NodeB, eNB), a transmission point (transmission reception point, TRP), a next generation base station (next generation NodeB, gNB) in the NR system, or a base station in other future mobile communication systems Or an access node in a wireless fidelity (wireless fidelity, WiFi) system, etc.
  • eNB evolved NodeB
  • TRP transmission reception point
  • gNB next generation NodeB
  • gNB next generation NodeB
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the network device.
  • the network device provided by the embodiment of the present application may be composed of a centralized unit (central unit, CU) and a distributed unit (distributed unit, DU), wherein the CU may also be called a control unit (control unit), using CU-DU
  • the structure of the network device such as the protocol layer of the base station, can be separated, and the functions of some protocol layers are placed in the centralized control of the CU, and the remaining part or all of the functions of the protocol layer are distributed in the DU, and the CU centrally controls the DU.
  • the terminal device 201 in the embodiment of the present application is an entity on the user side for receiving or transmitting signals, such as a mobile phone.
  • the terminal equipment may also be called terminal equipment (terminal), user equipment (user equipment, UE), mobile station (mobile station, MS), mobile terminal equipment (mobile terminal, MT) and so on.
  • the terminal device can be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (augmented reality (AR) terminal equipment, wireless terminal equipment in industrial control (industrial control), wireless terminal equipment in self-driving (self-driving), wireless terminal equipment in remote medical surgery (remote medical surgery), smart grid ( Wireless terminal devices in smart grid, wireless terminal devices in transportation safety, wireless terminal devices in smart city, wireless terminal devices in smart home, etc.
  • the embodiment of the present application does not limit the specific technology and specific device form adopted by the terminal device.
  • FIG. 3 is a flowchart of a method for triggering a sounding reference signal (SRS) for antenna switching according to an embodiment of the present application.
  • SRS sounding reference signal
  • the SRS triggering method for antenna switching in the embodiment of the present application is performed by a network device.
  • the SRS triggering method for antenna switching may include but not limited to the following steps.
  • Step 301 receiving capability report information sent by the terminal device, where the capability report information is used to indicate antenna switching configuration combinations supported by the terminal device.
  • the terminal device may need to change the antenna configuration, such as reducing from 2T4R to 1T4R or 2T2R, or changing from 2T2R to 4T4R, then you need to use a different function called "antenna switching"
  • the SRS resource configuration is used for acquiring downlink CSI.
  • the terminal device can inform the network device that the terminal device needs to change the antenna configuration according to the current service or scenario, and the terminal device can notify the network device by sending capability report information to the network device.
  • the terminal device may send the capability report information of the terminal device to the network device, so that the network device receives the capability report information sent by the terminal device, and the capability report information may indicate the antenna switching configuration combinations supported by the terminal device.
  • the terminal device can report the antenna switching configuration combination supported by itself to the network device, so that the network device can receive the capability report information sent by the terminal device, and can dynamically configure uplink SRS resources for the terminal device.
  • Step 302 dynamically configure uplink SRS resources for the terminal device according to the capability report information.
  • the SRS configured for antenna switching may allow RRC (Radio Resource Control, radio resource control) signaling to configure SRS resource sets of different antenna switching configurations that the UE can support on the same bandwidth part BWP; where , each antenna switching configuration can include one or more aperiodic SRS resource sets, and the configured SRS also includes SRS resource sets for other functions (such as "codebook”, "non-codebook", "beam management”, etc.).
  • RRC Radio Resource Control, radio resource control
  • Step 303 sending downlink control information DCI to the terminal device, where the DCI is used to trigger SRS resource set.
  • the SRS resource set corresponds to the antenna switching configuration.
  • the SRS resource set may include the SRS resource set corresponding to the antenna switching configuration, and may also include at least one SRS resource set for other functions.
  • one or more SRS resource sets of other functions such as “codebook”, “non-codebook”, “beam management”, etc. may also be included.
  • SRS configuration in this disclosure refers to the parameter value that the network device arranges for the terminal UE to comply with;
  • SRS triggering refers to the action that the network device transmits the SRS parameter value configured by the network device to the terminal device through control signaling.
  • the DCI may be used to implement flexible SRS resource triggering.
  • the network device can send DCI to the terminal device, and the DCI can be used to trigger the SRS resource set, and the SRS resource set can include the SRS resource set configuration corresponding to the antenna switching configuration, and can also include other functions (such as "codebook”, One or more sets of SRS resources for "non-codebook", "beam management”, etc.).
  • the embodiments of this application provide several methods of using DCI on the same BWP to implement flexible SRS resource triggering methods, for example, by extending the SRS request indication field in DCI signaling, or by using and redefining The SRS request indication field, or, can use the bits in the existing DCI field and other functional DCI fields, or use the code points in the existing DCI field and other functional DCI fields, or use extended DCI2-3 or design new
  • the user group downlink control information GC-DCI, etc. will be described in detail below from these several methods.
  • the network device may send downlink control information DCI to the terminal device.
  • the DCI includes an extended aperiodic SRS request indication field, and the extended SRS request indication field indicates that the terminal device triggers one or more SRS resources. gather.
  • the above one or more SRS resource sets may include the SRS set configuration corresponding to the specified antenna switching configuration; or, the above one or more SRS resource sets include at least part of the SRS resource set corresponding to the specified antenna switching configuration Collection of resources.
  • the term “at least part” can be understood as “part” or "all”.
  • the above-mentioned extended SRS request indication fields are respectively set with different SRS resource sets, and the aperiodic SRS resource trigger parameters corresponding to the different SRS resource sets are the same or different, and the extended SRS trigger parameters corresponding to code point for triggering.
  • the network device can instruct the terminal to trigger one or more SRS resource sets by extending the SRS request indication field in the DCI signaling, which can include which antenna to send to switch the corresponding SRS set configuration, and can also include a certain antenna All or part of the SRS resource sets in the SRS resource sets corresponding to the switching configuration.
  • expand the SRS request indication field respectively set the aperiodic SRS resource trigger parameters (aperiodicSRS-ResourceTrigger) corresponding to the SRS resource sets with different functions to the same or different values, and use the code point corresponding to the extended SRS trigger parameters (SRS trigger codepoint) trigger.
  • aperiodicSRS-ResourceTrigger aperiodicSRS-ResourceTrigger
  • the SRS request indication field is extended, and the aperiodic SRS resource triggering parameters corresponding to the SRS resource sets of the same antenna switching configuration are respectively set to the same or different values, and are triggered by code points corresponding to the extended SRS triggering parameters.
  • the network device can implement flexible SRS resource triggering by extending the SRS request indication field in the DCI signaling.
  • the network device may send extended downlink control information DCI to the terminal device, the extended DCI includes a redefined aperiodic SRS request indication field, and the redefined SRS request indication field is used to trigger at least A functional SRS resource set, the at least one function includes antenna switching configuration.
  • the SRS resource set of at least one function may be understood as an SRS resource set of one or more functions including antenna switching configuration.
  • the triggering of the SRS resource set of at least one function may include: configuring a bitmap bitmap composed of a flag ID corresponding to the SRS resource set of each function in the at least one function to activate; wherein, the bitmap The bitmap contains the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • the above triggering the SRS resource set of at least one function may include: configuring a codepoint codepoint composed of a flag ID corresponding to the SRS resource set of each function in the at least one function to activate; wherein, the The codepoint codepoint contains the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • a network device can use and redefine the aperiodic SRS request indication field in DCI to trigger an SRS resource set corresponding to one or more functions including antenna switching configuration, which can be configured separately to include various switching Activate the bitmap or codepoint composed of SRS resource sets with various functions including the flag ID corresponding to the configured SRS resource set. Configure the corresponding SRS resource set configuration. Therefore, the network device can implement flexible SRS resource triggering by redefining the aperiodic SRS request indication field in the DCI.
  • the network device may send downlink control information DCI to the terminal device, the DCI includes a DCI field for antenna switching configuration and other functional DCI fields, and a bit joint indication in the DCI field and other functional DCI fields The code point corresponding to the SRS resource set that needs to be triggered.
  • the network device can use the existing DCI field and the bits in other unused (functional) DCI fields to jointly indicate the code point corresponding to the SRS resource set that needs to be triggered. For example, when DCI0-1/0-2 uses SRS trigger without When data and without CSI (SRS trigger parameters without data and without CSI) are triggered, use the unused field (function field) at the same time, such as TPC, FDRA, TDRA, etc. to jointly trigger SRS resources.
  • the network device can implement flexible SRS resource triggering through bits in the existing DCI field and other functional DCI fields.
  • the network device may send downlink control information DCI to the terminal device, and the DCI includes code points for the DCI domain and other functional DCI domains used for antenna switching configuration; wherein, the DCI domain and other functional DCI domains The codepoint union in indicates all triggering codepoints.
  • a network device can use the existing DCI domain and code points in other unused (functional) DCI domains to jointly indicate all trigger code points, and through the two DCI indication domains to jointly indicate, specific joint indication rules need to be defined, For example, a DMRS (Demodulation Reference Signal, demodulation reference signal) antenna port indicates a code point in the field.
  • DMRS Demodulation Reference Signal, demodulation reference signal
  • the network device can implement flexible SRS resource triggering by using code points in the existing DCI domain and other functional DCI domains.
  • the network device may send extended DCI2-3 signaling to the terminal device, the extended DCI2-3 signaling is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the triggering of a set of SRS of the terminal device.
  • the network device can use the extended DCI2-3 to indicate the trigger code point corresponding to the SRS trigger request field, and can be used for SRS enhancement triggering of a group of UEs, thereby saving signaling overhead.
  • the network device can use the extended DCI2-3 to indicate the SRS trigger request field to implement flexible SRS resource triggering.
  • the network device may send user packet downlink control information GC-DCI to the terminal device, the GC-DCI is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the triggering of a group of terminals The SRS of the device.
  • the network device can design a new GC-DCI to indicate the trigger code point corresponding to the SRS trigger request field, and can be used for SRS enhancement triggering of a group of UEs, thereby saving signaling overhead. Therefore, the network device can design a new GC-DCI indicating an SRS trigger request field to implement flexible SRS resource triggering.
  • the network device can also update the trigger code point corresponding to the above method through the media access control layer control unit MAC CE, which can be used for quick configuration.
  • DCI can be used on the same BWP to implement flexible SRS resource triggering, more flexible and fast switching or fallback to different antenna switching configurations, so as to meet antenna requirements of current services or scenarios.
  • FIG. 4 is a flowchart of another SRS triggering method for antenna switching provided by an embodiment of the present application. It should be noted that the SRS triggering method for antenna switching in the embodiment of the present application can be applied to a terminal device. As shown in FIG. 4 , the SRS triggering method for antenna switching may include but not limited to the following steps.
  • Step 401 sending capability report information to the network device, where the capability report information is used to indicate the antenna switching configuration combination supported by the terminal device.
  • the terminal device may need to change the antenna configuration, such as reducing from 2T4R to 1T4R or 2T2R, or changing from 2T2R to 4T4R, then you need to use a different function called "antenna switching"
  • the SRS resource configuration is used for acquiring downlink CSI.
  • the terminal device can inform the network device that the terminal device needs to change the antenna configuration according to the current service or scenario, and the terminal device can notify the network device by sending capability report information to the network device.
  • the terminal device may send the capability report information of the terminal device to the network device, so that the network device receives the capability report information sent by the terminal device, and the capability report information may indicate the antenna switching configuration combinations supported by the terminal device.
  • the terminal device can report the antenna switching configuration combination supported by itself to the network device, so that the network device can receive the capability report information sent by the terminal device, and can dynamically configure uplink SRS resources for the terminal device.
  • Step 402 receiving the downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, the DCI is used to trigger the SRS resource set, and the SRS resource set corresponds to the antenna switching configuration.
  • the SRS resource set may include the SRS resource set corresponding to the antenna switching configuration, and may also include at least one SRS resource set for other functions.
  • the SRS configured for antenna switching may allow RRC (Radio Resource Control, radio resource control) signaling to configure SRS resource sets of different antenna switching configurations that the UE can support on the same bandwidth part BWP; where , each antenna switching configuration can include one or more aperiodic SRS resource sets, and the configured SRS also includes SRS resource sets for other functions (such as "codebook”, "non-codebook", "beam management”, etc.).
  • RRC Radio Resource Control, radio resource control
  • the DCI may be used to implement flexible SRS resource triggering.
  • the network device can send DCI to the terminal device, so that the terminal device can receive the DCI sent by the network device, and the DCI can be used to trigger the SRS resource set, and the SRS resource set can include the SRS resource set configuration corresponding to the antenna switching configuration , may also contain one or more SRS resource sets of other functions (such as "codebook”, "non-codebook", "beam management", etc.).
  • the embodiments of this application provide several methods of using DCI on the same BWP to implement flexible SRS resource triggering methods, for example, by extending the SRS request indication field in DCI signaling, or by using and redefining The SRS request indication field, or, can use the bits in the existing DCI field and other functional DCI fields, or use the code points in the existing DCI field and other functional DCI fields, or use extended DCI2-3 or design new
  • the user group downlink control information GC-DCI, etc. will be described in detail below from these several methods.
  • the terminal device may receive the downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information.
  • the SRS request indication field indicates that the terminal device triggers one or more SRS resource sets.
  • the above one or more SRS resource sets may include the SRS set configuration corresponding to the specified antenna switching configuration; or, the above one or more SRS resource sets may include at least part of the SRS resource set corresponding to the specified antenna switching configuration SRS resource collection.
  • the term “at least part” can be understood as “part” or "all”.
  • the above-mentioned extended SRS request indication fields are respectively set with different SRS resource sets, and the aperiodic SRS resource trigger parameters corresponding to the different SRS resource sets are the same or different, and the extended SRS trigger parameters corresponding to code point for triggering.
  • the network device can instruct the terminal to trigger one or more SRS resource sets by extending the SRS request indication field in the DCI signaling, which can include which antenna to send to switch the corresponding SRS set configuration, and can also include a certain antenna All or part of the SRS resource sets in the SRS resource sets corresponding to the switching configuration.
  • expand the SRS request indication field respectively set the aperiodic SRS resource trigger parameters (aperiodicSRS-ResourceTrigger) corresponding to the SRS resource sets with different functions to the same or different values, and use the code point corresponding to the extended SRS trigger parameters (SRS trigger codepoint) trigger.
  • aperiodicSRS-ResourceTrigger aperiodicSRS-ResourceTrigger
  • the terminal device determines the configuration of the SRS resource by the network device through the received DCI signaling sent by the network device, so that antenna switching can be performed.
  • the terminal device may receive the extended downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the extended DCI includes the redefined aperiodic SRS
  • the request indication field is redefined, and the redefined SRS request indication field is used to trigger the SRS resource set of at least one function, and the at least one function includes antenna switching configuration.
  • the SRS resource set of at least one function may be understood as.
  • the triggering of the SRS resource set of at least one function may include: configuring a bitmap bitmap composed of a flag ID corresponding to the SRS resource set of each function in the at least one function to activate; wherein, the bitmap The bitmap contains the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • the above triggering the SRS resource set of at least one function may include: configuring a codepoint codepoint composed of a flag ID corresponding to the SRS resource set of each function in the at least one function to activate; wherein, the The codepoint codepoint contains the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • a network device can use and redefine the aperiodic SRS request indication field in DCI to trigger an SRS resource set corresponding to one or more functions including antenna switching configuration, which can be configured separately to include various switching Activate the bitmap or codepoint composed of SRS resource sets with various functions including the flag ID corresponding to the configured SRS resource set. Configure the corresponding SRS resource set configuration.
  • the network device can realize flexible SRS resource triggering by redefining the aperiodic SRS request indication field in the DCI.
  • the terminal device can determine the configuration of the SRS resource by the network device by receiving the DCI signaling sent by the network device, so as to perform antenna switching.
  • the terminal device may receive the downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the DCI includes a DCI field for antenna switching configuration and other functions
  • the DCI field, the bit combination in the DCI field and other functions indicates the code point corresponding to the SRS resource set that needs to be triggered.
  • the network device can use the existing DCI field and the bits in other unused (functional) DCI fields to jointly indicate the code point corresponding to the SRS resource set that needs to be triggered. For example, when DCI0-1/0-2 uses SRS trigger without When data and without CSI (SRS trigger parameters without data and without CSI) are triggered, use the unused field (function field) at the same time, such as TPC, FDRA, TDRA, etc. to jointly trigger SRS resources.
  • the network device can implement flexible SRS resource triggering through bits in the existing DCI field and other functional DCI fields.
  • the terminal device can determine the configuration of the SRS resource by the network device by receiving the DCI signaling sent by the network device, so as to perform antenna switching.
  • the terminal device may receive the downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, the DCI includes Switch the code points of the configured DCI domain and other functional DCI domains; wherein, the code points in the DCI domain and other functional DCI domains jointly indicate all trigger code points.
  • a network device can use the existing DCI domain and code points in other unused (functional) DCI domains to jointly indicate all trigger code points, and through the two DCI indication domains to jointly indicate, specific joint indication rules need to be defined, For example, a DMRS (Demodulation Reference Signal, demodulation reference signal) antenna port indicates a code point in the domain.
  • DMRS Demodulation Reference Signal, demodulation reference signal
  • the network device can implement flexible SRS resource triggering by using code points in the existing DCI domain and other functional DCI domains.
  • the terminal device can determine the configuration of the SRS resource by the network device by receiving the DCI signaling sent by the network device, so as to perform antenna switching.
  • the terminal device may receive extended DCI2-3 signaling sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the extended DCI2- 3
  • the signaling is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the triggering of the SRS of a group of terminal devices.
  • the network device can use the extended DCI2-3 to indicate the trigger code point corresponding to the SRS trigger request field, and can be used for SRS enhancement triggering of a group of UEs, thereby saving signaling overhead.
  • the network device can use the extended DCI2-3 to indicate the SRS trigger request field to implement flexible SRS resource triggering.
  • the terminal device can determine the configuration of the SRS resource by the network device by receiving the DCI signaling sent by the network device, so as to perform antenna switching.
  • the terminal device may receive the user group downlink control information GC-DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the GC-DCI is used to indicate the SRS trigger request The trigger code point corresponding to the domain, and is used to enhance the triggering of the SRS of a group of terminal devices.
  • the network device can design a new GC-DCI to indicate the trigger code point corresponding to the SRS trigger request field, and can be used for SRS enhancement triggering of a group of UEs, thereby saving signaling overhead. Therefore, the network device can design a new GC-DCI indicating an SRS trigger request field to implement flexible SRS resource triggering.
  • the terminal device can determine the configuration of the SRS resource by the network device by receiving the DCI signaling sent by the network device, so as to perform antenna switching.
  • the terminal device may also receive a media access control layer control element MAC CE sent by the network device; wherein the MAC CE is used to update the corresponding trigger code point. That is to say, the network device can also update the trigger code point corresponding to the above method through the media access control layer control unit MAC CE, which can be used for quick configuration. In this way, after the terminal device receives the MAC CE sent by the network device, it can be used to update the corresponding trigger code point, so as to achieve the purpose of rapid configuration.
  • MAC CE media access control layer control element
  • DCI can be used on the same BWP to implement flexible SRS resource triggering, more flexible and fast switching or fallback to different antenna switching configurations, so as to meet antenna requirements of current services or scenarios.
  • the methods provided in the embodiments of the present application are introduced from the perspectives of the network device and the terminal device respectively.
  • the network device and the terminal device may include a hardware structure and a software module, and realize the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • a certain function among the above-mentioned functions may be implemented in the form of a hardware structure, a software module, or a hardware structure plus a software module.
  • FIG. 5 is a schematic structural diagram of a communication device 50 provided in an embodiment of the present application.
  • the communication device 50 shown in FIG. 5 may include a processing module 501 and a transceiver module 502 .
  • the transceiver module 502 may include a sending module and/or a receiving module, the sending module is used to implement a sending function, the receiving module is used to implement a receiving function, and the transceiver module 502 may implement a sending function and/or a receiving function.
  • the communication device 50 may be a network device, or a device in the network device, or a device that can be matched with the network device.
  • the communication device 50 may be a terminal device, may also be a device in the terminal device, and may also be a device that can be matched and used with the terminal device.
  • the communication device 50 is a network device: in the embodiment of this application, the transceiver module 502 is used to receive the capability report information sent by the terminal device, and the capability report information is used to indicate the combination of antenna switching configurations supported by the terminal device; the processing module 501 is used to Report information to dynamically configure uplink SRS resources for the terminal equipment; the transceiver module 502 is also used to send downlink control information DCI to the terminal equipment, and the DCI is used to trigger the SRS resource set, and the SRS resource set corresponds to the antenna switching configuration.
  • the SRS resource set may include the SRS resource set corresponding to the antenna switching configuration and at least one SRS resource set for other functions.
  • the DCI is used to trigger the SRS resource set corresponding to the antenna switching configuration, including:
  • the DCI includes an extended aperiodic SRS request indication field, and the extended aperiodic SRS request indication field instructs the terminal device to trigger at least one SRS resource set.
  • At least one SRS resource set includes the SRS set configuration corresponding to the specified antenna switching configuration; or, at least one SRS resource set includes at least part of the SRS resource set in the SRS resource set corresponding to the specified antenna switching configuration .
  • the extended aperiodic SRS request indication field instructs the terminal device to trigger at least one SRS resource set, including: the extended aperiodic SRS request indication field respectively sets different SRS resource sets, and the different SRS
  • the aperiodic SRS resource triggering parameters corresponding to the resource sets are the same or different, and the triggering is triggered by a code point corresponding to the extended SRS resource triggering parameter.
  • the extended aperiodic SRS request indication field indicates that the terminal device triggers at least one SRS resource set, and further includes: the extended aperiodic SRS request indication field respectively sets the SRS resource set of the same antenna switching configuration,
  • the aperiodic SRS resource triggering parameters corresponding to the SRS resource sets of the same antenna switching configuration are the same or different, and the triggering is triggered by a code point corresponding to the extended SRS resource triggering parameter.
  • the transceiver module 502 is specifically configured to: send extended downlink control information DCI to the terminal device, the extended DCI includes a redefined aperiodic SRS request indication field, and the redefined aperiodic SRS request indication field The field is used to trigger the set of SRS resources for at least one function, and the at least one function includes antenna switching configuration.
  • triggering the SRS resource set of at least one function, where the at least one function includes antenna switching configuration includes: configuring a flag corresponding to the SRS resource set of each function in the at least one function The bitmap bitmap composed of IDs is activated; wherein, the bitmap bitmap includes the ID of the SRS resource set corresponding to the antenna switching configuration.
  • triggering the SRS resource set of at least one function, where the at least one function includes antenna switching configuration includes: configuring a flag corresponding to the SRS resource set of each function in the at least one function The code point codepoint composed of ID is activated; wherein, the code point codepoint contains the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • the transceiver module 502 is specifically configured to: send downlink control information DCI to the terminal device, the DCI includes a DCI domain for antenna switching configuration and other functional DCI domains, and the DCI domain and other functional DCI domains The bit combination indicates the code point corresponding to the SRS resource set that needs to be triggered.
  • the transceiver module 502 is specifically configured to: send downlink control information DCI to the terminal device, and the DCI includes a DCI field for antenna switching configuration and code points of other functional DCI fields; wherein, the DCI field and other The codepoint association in the functional DCI field indicates all triggering codepoints.
  • the transceiver module 502 is specifically configured to: send extended DCI2-3 signaling to the terminal device, the extended DCI2-3 signaling is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the trigger SRS for a group of terminal devices; or, send user packet downlink control information GC-DCI to the terminal device, GC-DCI is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the SRS triggered by a group of terminal devices .
  • the processing module 501 is further configured to update the corresponding trigger code point through the medium access control layer control unit MAC CE.
  • the communication device 50 is a terminal device: in the embodiment of this application, the transceiver module 502 is used to send capability report information to the network device, and the capability report information is used to indicate the combination of antenna switching configurations supported by the terminal device; the transceiver module 502 is also used to receive network
  • the SRS resource set includes the SRS resource set corresponding to the antenna switching configuration and at least one SRS resource set for other functions.
  • the DCI is used to trigger an SRS resource set, and the SRS resource set corresponds to an antenna switching configuration, including: the DCI includes an extended aperiodic SRS request indicator field, and the extended aperiodic SRS The request indication field indicates that the terminal device triggers at least one SRS resource set.
  • At least one SRS resource set includes the SRS set configuration corresponding to the specified antenna switching configuration; or, at least one SRS resource set includes at least part of the SRS resource set in the SRS resource set corresponding to the specified antenna switching configuration .
  • the extended aperiodic SRS request indication field instructs the terminal device to trigger at least one SRS resource set, including: the extended SRS request indication field respectively sets different SRS resource sets, and the different SRS resource sets
  • the corresponding aperiodic SRS resource triggering parameters are the same or different, and the triggering is triggered by a code point corresponding to the extended SRS resource triggering parameter.
  • the extended aperiodic SRS request indication field instructs the terminal device to trigger at least one SRS resource set, and further includes: the extended aperiodic SRS request indication field respectively sets the SRS resource set of the same antenna switching configuration,
  • the aperiodic SRS resource triggering parameters corresponding to the SRS resource sets of the same antenna switching configuration are the same or different, and the triggering is triggered by a code point corresponding to the extended SRS resource triggering parameter.
  • the transceiver module 502 is specifically configured to: receive the extended downlink control information DCI sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the extended DCI includes heavy A defined aperiodic SRS request indication field, the redefined aperiodic SRS request indication field is used to trigger an SRS resource set for at least one function, and the at least one function includes antenna switching configuration.
  • triggering the SRS resource set of at least one function, where the at least one function includes antenna switching configuration includes: configuring a flag corresponding to the SRS resource set of each function in the at least one function The bitmap bitmap composed of IDs is activated; wherein, the bitmap bitmap includes the ID of the SRS resource set corresponding to the antenna switching configuration.
  • the triggering of the SRS resource set for at least one function, the at least one function including antenna switching configuration includes: configuring the SRS resource set corresponding to each function in the at least one function The code point codepoint composed of the flag ID of the flag ID is activated; wherein, the code point codepoint includes the flag ID of the SRS resource set corresponding to the antenna switching configuration.
  • the transceiver module 502 is specifically configured to: receive the downlink control information DCI sent by the network device after dynamically configuring the uplink SRS resource for the terminal device according to the capability report information, and the DCI includes a DCI field for antenna switching configuration and other functional DCI fields, the bits in the DCI field and other functional DCI fields jointly indicate the code point corresponding to the SRS resource set that needs to be triggered.
  • the transceiver module 502 is specifically configured to: receive the downlink control information DCI sent by the network device after dynamically configuring the uplink SRS resource for the terminal device according to the capability report information, and the DCI includes a DCI field for antenna switching configuration and code points in other functional DCI domains; wherein, the code points in the DCI domain and other functional DCI domains jointly indicate all trigger code points.
  • the transceiver module 502 is specifically configured to: receive the extended DCI2-3 signaling sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information, and the extended DCI2-3 signaling is used for Indicates the trigger code point corresponding to the SRS trigger request field, and is used to enhance and trigger the SRS of a group of terminal devices; or, receive the user packet downlink control information sent by the network device after dynamically configuring uplink SRS resources for the terminal device according to the capability report information GC-DCI, GC-DCI is used to indicate the trigger code point corresponding to the SRS trigger request field, and is used to enhance the SRS triggering of a group of terminal devices.
  • the transceiver module 502 is further configured to: receive the MAC CE sent by the network device; wherein, the MAC CE is used to update the corresponding trigger code point.
  • FIG. 6 is a schematic structural diagram of another communication device 60 provided in an embodiment of the present application.
  • the communication device 60 may be a network device, or a terminal device, or a chip, a chip system, or a processor that supports the network device to implement the above method, or a chip, a chip system, or a chip that supports the terminal device to implement the above method. processor etc.
  • the device can be used to implement the methods described in the above method embodiments, and for details, refer to the descriptions in the above method embodiments.
  • Communications device 60 may include one or more processors 601 .
  • the processor 601 may be a general purpose processor or a special purpose processor or the like. For example, it can be a baseband processor or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (such as base stations, baseband chips, terminal equipment, terminal equipment chips, DU or CU, etc.) and execute computer programs , to process data for computer programs.
  • the communication device 60 may further include one or more memories 602, on which a computer program 604 may be stored, and the processor 601 executes the computer program 604, so that the communication device 60 executes the method described in the above method embodiment. method.
  • data may also be stored in the memory 602 .
  • the communication device 60 and the memory 602 can be set separately or integrated together.
  • the communication device 60 may further include a transceiver 605 and an antenna 606 .
  • the transceiver 605 may be called a transceiver unit, a transceiver, or a transceiver circuit, etc., and is used to implement a transceiver function.
  • the transceiver 605 may include a receiver and a transmitter, and the receiver may be called a receiver or a receiving circuit for realizing a receiving function; the transmitter may be called a transmitter or a sending circuit for realizing a sending function.
  • the communication device 60 may further include one or more interface circuits 607 .
  • the interface circuit 607 is used to receive code instructions and transmit them to the processor 601 .
  • the processor 601 runs the code instructions to enable the communication device 60 to execute the methods described in the foregoing method embodiments.
  • the communication device 60 is a network device: the processor 601 is configured to execute step 302 in FIG. 3 .
  • the transceiver 605 is used to execute step 301 and step 303 in FIG. 3 .
  • the communication device 60 is a terminal device: the transceiver 605 is used to execute step 401 and step 402 in FIG. 4 .
  • the processor 601 may include a transceiver for implementing receiving and sending functions.
  • the transceiver may be a transceiver circuit, or an interface, or an interface circuit.
  • the transceiver circuits, interfaces or interface circuits for realizing the functions of receiving and sending can be separated or integrated together.
  • the above-mentioned transceiver circuit, interface or interface circuit may be used for reading and writing code/data, or the above-mentioned transceiver circuit, interface or interface circuit may be used for signal transmission or transmission.
  • the processor 601 may store a computer program 603 , and the computer program 603 runs on the processor 601 to enable the communication device 60 to execute the methods described in the foregoing method embodiments.
  • the computer program 603 may be solidified in the processor 601, and in this case, the processor 601 may be implemented by hardware.
  • the communication device 60 may include a circuit, and the circuit may implement the function of sending or receiving or communicating in the foregoing method embodiments.
  • the processors and transceivers described in this application can be implemented in integrated circuits (integrated circuits, ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application specific integrated circuits (ASICs), printed circuit boards ( printed circuit board, PCB), electronic equipment, etc.
  • the processor and transceiver can also be fabricated using various IC process technologies, such as complementary metal oxide semiconductor (CMOS), nMetal-oxide-semiconductor (NMOS), P-type Metal oxide semiconductor (positive channel metal oxide semiconductor, PMOS), bipolar junction transistor (bipolar junction transistor, BJT), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.
  • CMOS complementary metal oxide semiconductor
  • NMOS nMetal-oxide-semiconductor
  • PMOS P-type Metal oxide semiconductor
  • BJT bipolar junction transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device described in the above embodiments may be a receiving end or a sending end, but the scope of the communication device described in this application is not limited thereto, and the structure of the communication device may not be limited by FIG. 6 .
  • a communication device may be a stand-alone device or may be part of a larger device.
  • the communication device may be:
  • a set of one or more ICs may also include storage components for storing data and computer programs;
  • ASIC such as modem (Modem);
  • the embodiment of the present application also provides a communication system triggered by a sounding reference signal (SRS) for antenna switching, the system includes the communication device as the network device and the communication device as the terminal device in the aforementioned embodiment in FIG. 5 , or, the system includes In the aforementioned embodiment of FIG. 6, the communication device as a network device and the communication device as a terminal device.
  • SRS sounding reference signal
  • the present application also provides a readable storage medium on which instructions are stored, and when the instructions are executed by a computer, the functions of any one of the above method embodiments are realized.
  • the present application also provides a computer program product, which implements the functions of any one of the above method embodiments when executed by a computer.
  • all or part of them may be implemented by software, hardware, firmware or any combination thereof.
  • software When implemented using software, it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product comprises one or more computer programs. When the computer program is loaded and executed on the computer, all or part of the processes or functions according to the embodiments of the present application will be generated.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices.
  • the computer program can be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer program can be downloaded from a website, computer, server or data center Transmission to another website site, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media.
  • the available medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disk, SSD)) etc.
  • a magnetic medium for example, a floppy disk, a hard disk, a magnetic tape
  • an optical medium for example, a high-density digital video disc (digital video disc, DVD)
  • a semiconductor medium for example, a solid state disk (solid state disk, SSD)
  • At least one in this application can also be described as one or more, and multiple can be two, three, four or more, and this application does not make a limitation.
  • the technical feature is distinguished by "first”, “second”, “third”, “A”, “B”, “C” and “D”, etc.
  • the technical features described in the “first”, “second”, “third”, “A”, “B”, “C” and “D” have no sequence or order of magnitude among the technical features described.
  • the corresponding relationships shown in the tables in this application can be configured or predefined.
  • the values of the information in each table are just examples, and may be configured as other values, which are not limited in this application.
  • the corresponding relationship shown in some rows may not be configured.
  • appropriate deformation adjustments can be made based on the above table, for example, splitting, merging, and so on.
  • the names of the parameters shown in the titles of the above tables may also adopt other names understandable by the communication device, and the values or representations of the parameters may also be other values or representations understandable by the communication device.
  • other data structures can also be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables can be used wait.
  • Predefined in this application can be understood as defining, predefining, storing, prestoring, prenegotiating, preconfiguring, curing, or prefiring.

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Abstract

本申请实施例公开了一种用于天线切换的探测参考信号SRS触发方法及其装置，可以应用于5GNR系统中，该方法包括：网络设备接收终端设备发送的能力上报信息，能力上报信息用于表示终端设备支持的天线切换配置组合，并根据能力上报信息，为终端设备动态配置上行SRS资源，以及向终端设备发送下行链路控制信息DCI，DCI用于触发SRS资源集合，该SRS资源集合与天线切换配置相对应。通过实施本申请实施例，可以更加灵活和快速的切换或者回退到不同的天线切换配置。

Description

一种用于天线切换的探测参考信号SRS触发方法及其装置 技术领域
本申请涉及通信技术领域，尤其涉及一种用于天线切换的探测参考信号SRS触发方法及其装置。
背景技术
第五代(5th Generation，5G)移动通信系统中，终端设备支持用于SRS(Sounding Reference Signal，探测参考信号)的天线切换传输方式(SRS antenna switching)包括：1T2R；2T4R；1T4R或T＝R等，根据SRS发送周期的不同，SRS可以分为周期性发送、半持续发送和非周期触发送，SRS天线切换传输适用于上下行具有互易性的场景，用于网络设备获取下行信道信息。例如，为了适用当前业务或者场景，终端设备可能需要改变天线配置，比如从2T4R降低为1T4R或者2T2R，或者从2T2R改变为4T4R的情况，这时就需要使用不同的功能为“天线切换”的SRS资源配置用于下行CSI(Channel State Information，信道状态信息)的获取。
在R17版本的SRS增强中，天线数目会增加到6Rx或8Rx，天线切换支持的场景更多，对应SRS配置更为复杂。R15或R16版本并不支持BWP(Bandwidth Part，带宽部分)内灵活动态的天线切换配置，如果引入动态的天线切换配置方案后，触发问题变得更加复杂。因此需要考虑对于多种功能包括多种天线切换配置的SRS触发的相关方法。
发明内容
本申请实施例提供一种用于天线切换的探测参考信号SRS触发方法及其装置，可以应用于5G NR系统中，可以更加灵活和快速的切换或者回退到不同的天线切换配置。
第一方面，本申请实施例提供一种用于天线切换的探测参考信号SRS触发方法，所述方法应用于网络设备，所述方法包括：
接收终端设备发送的能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
根据所述能力上报信息，为所述终端设备动态配置上行SRS资源；
向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
第二方面，本申请实施例提供另一种用于天线切换的探测参考信号SRS触发方法，所述方法应用于终端设备，所述方法包括：
向网络设备发送能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
第三方面，本申请实施例提供一种通信装置，该通信装置具有实现上述第一方面所述的方法中网络设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部 实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，所述处理模块被配置为支持通信装置执行上述方法中相应的功能。所述收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。
第四方面，本申请实施例提供另一种通信装置，该通信装置具有实现上述第二方面所述的方法示例中终端设备的部分或全部功能，比如通信装置的功能可具备本申请中的部分或全部实施例中的功能，也可以具备单独实施本申请中的任一个实施例的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的单元或模块。
在一种实现方式中，该通信装置的结构中可包括收发模块和处理模块，该处理模块被配置为支持通信装置执行上述方法中相应的功能。收发模块用于支持通信装置与其他设备之间的通信。所述通信装置还可以包括存储模块，所述存储模块用于与收发模块和处理模块耦合，其保存通信装置必要的计算机程序和数据。
作为示例，处理模块可以为处理器，收发模块可以为收发器或通信接口，存储模块可以为存储器。
第五方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第一方面所述的方法。
第六方面，本申请实施例提供一种通信装置，该通信装置包括处理器，当该处理器调用存储器中的计算机程序时，执行上述第二方面所述的方法。
第七方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第一方面所述的方法。
第八方面，本申请实施例提供一种通信装置，该通信装置包括处理器和存储器，该存储器中存储有计算机程序；所述处理器执行该存储器所存储的计算机程序，以使该通信装置执行上述第二方面所述的方法。
第九方面，本申请实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第一方面所述的方法。
第十方面，本申请实施例提供一种通信装置，该装置包括处理器和接口电路，该接口电路用于接收代码指令并传输至该处理器，该处理器用于运行所述代码指令以使该装置执行上述第二方面所述的方法。
第十一方面，本申请实施例提供一种通信系统，该系统包括第三方面所述的通信装置以及第四方面所述的通信装置，或者，该系统包括第五方面所述的通信装置以及第六方面 所述的通信装置，或者，该系统包括第七方面所述的通信装置以及第八方面所述的通信装置，或者，该系统包括第九方面所述的通信装置以及第十方面所述的通信装置。
第十二方面，本发明实施例提供一种计算机可读存储介质，用于储存为上述终端设备所用的指令，当所述指令被执行时，使所述终端设备执行上述第一方面所述的方法。
第十三方面，本发明实施例提供一种可读存储介质，用于储存为上述网络设备所用的指令，当所述指令被执行时，使所述网络设备执行上述第二方面所述的方法。
第十四方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十五方面，本申请还提供一种包括计算机程序的计算机程序产品，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
第十六方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第一方面所述的方法。
第十七方面，本申请提供一种计算机程序，当其在计算机上运行时，使得计算机执行上述第二方面所述的方法。
附图说明
为了更清楚地说明本申请实施例或背景技术中的技术方案，下面将对本申请实施例或背景技术中所需要使用的附图进行说明。
图1为时隙内SRS映射区域示意图；
图2为本申请实施例提供的一种通信系统的架构示意图；
图3是本申请实施例提供的一种用于天线切换的探测参考信号SRS触发方法的流程图；
图4是本申请实施例提供的又一种用于天线切换的探测参考信号SRS触发方法的流程图；
图5是本申请实施例提供的一种通信装置的结构示意图；
图6是本申请实施例提供的另一种通信装置的结构示意图。
具体实施方式
下面详细描述本公开的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本公开，而不能理解为对本公开的限制。其中，在本公开的描述中，除非另有说明，“/”表示或的意思，例如，A/B可以表示A或B；本文中的“和/或”仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。
在5G NR系统中上行SRS可以是周期、半持续或非周期SRS，窄带或宽带，单端口或多端口。上行SRS参数由网络设备向终端设备可以配置包括端口数目、频域资源位置、时域资源位置、序列、序列循环偏移量等。如图1所示，在5G NR系统中，SRS在一个上行时隙的最多六个符号上映射。例如，网络设备为终端设备可以配置多个上行SRS集合，一个资源集合包含一个或者多个SRS资源。一个SRS资源可以在N个连续OFDM(Orthogonal  Frequency Division Multiplexing：正交频分复用)符号上，N可以占用1,2,4个符号。
可以理解，NR系统中支持gNB(基站)侧通过信道互易获取下行信道信息以提高下行数据传输性能。为了支持各种终端收发能力下gNB也能通过信道互易有效获取下行信息，NR系统特别设计了SRS参考信号。目前R15/16定义的终端的收发能力可以分为收发天线数目相同(T＝R)以及收天线多于发天线(R>T)，主要有一发一收(1T1R)、两发两收(2T2R)、四发四收(4T4R)；收天线多于发天线主要有几种情况：一发两收(1T2R)、一发四收(1T4R)、两发四收(2T4R)。
对于不同的天线配置，SRS资源配置情况也各不相同，比如下面将给出几种示例：
1)对于收发天线数相同(T＝R)终端，gNB可以最多配置两个SRS资源集合，在一个集合中只有一个SRS资源其中端口数等于终端的发送天线数。两个SRS资源集合中一个可以配置为周期，另一个可以配置为非周期。
2)对于一发两收(1T2R)能力的终端，gNB可以最多配置两个SRS资源集合，在一个集合中有两个SRS资源、每个SRS资源仅有一个端口。
3)对于两发四收(2T4R)能力的终端，gNB可以最多配置两个SRS资源集合，在一个集合中有两个SRS资源、每个SRS资源有两个端口。
4)对于一发四收(1T4R)能力的终端，gNB配置SRS资源需要特殊考虑，周期或半持续SRS资源最多只能配置一个资源集合，其中有4个SRS资源各有1个端口；为非周期SRS资源最多可以配置2个SRS资源集合、两个SRS资源集合里一共有4个SRS资源，而这4个资源在两个slot内发送且这4个资源由不同的物理天线发送。两个资源集合可以每个集合各配置2个资源，或一个集合1个另一个集合3个资源，每个资源只有1端口。
网络设备(如基站)通常是基于终端设备的UE能力上报来为终端配置SRS资源。不同版本的终端所支持的UE能力也会不同。例如，R15版本终端支持的UE能力为：t1r2,t1r4,t2r4,t1r4-t2r4,t1r1,t2r2,t4r4；R16版本终端支持的UE能力为：t1r1-t1r2,t1r1-t1r2-t1r4,t1r1-t1r2-t2r2-t2r4,t1r1-t1r2-t2r2-t1r4-t2r4,t1r1-t2r2,t1r1-t2r2-t4r4。
目前在R17版本的研究中，考虑终端设备的天线数有进一步增加的需求，因此会进一步增加天线数目到最大6天线或者最大8天线。目前定义的典型的天线配置为{1T6R,1T8R,2T6R,2T8R,[4T6R],4T8R}，如下表1所示。
表1：最多到8天线的SRS天线切换配置组合
Tx\Rx 6Rx 8Rx
1T 1T6R 1T8R
2T 2T6R 2T8R
4T 4T6R 4T8R
为了适用当前业务或者场景，终端设备可能需要改变天线配置，例如从2T4R降低为1T4R或者2T2R，或者从2T2R改变为4T4R的情况，这时就需要使用不同的功能为“天线切换”的SRS资源配置用于下行CSI的获取。
在R17版本的SRS增强中，天线数目会增加到6/8Rx,天线切换支持的场景更多，对应SRS配置更为复杂。
当终端设备天线数增加，其中一种用于天线切换配置的SRS就可能需要包含最多4个 SRS资源集合，当前的SRS triggering request(触发请求)为3个codepoint(码点)，同时还需要考虑其他功能usage(如“码本”，“非码本”，“波束管理”)的SRS触发。
R15/16版本并不支持BWP内灵活动态的天线切换配置，如果引入动态的天线切换配置方案后，触发问题变得更加复杂。因此需要考虑对于多种功能包括多种天线切换配置的SRS触发的相关方法。
基于上述问题，本申请提供了一种用于天线切换的探测参考信号SRS触发方法。为了更好的理解本申请实施例公开的一种用于天线切换的探测参考信号SRS触发方法，下面首先对本申请实施例使用的通信系统进行描述。
请参见图2，图2为本申请实施例提供的一种通信系统的架构示意图。该通信系统可以包括但不限于一个终端设备和一个网络设备，图2所示的设备数量和形态仅用于举例并不构成对本申请实施例的限定，实际应用中可以包括两个或两个以上的终端设备，两个或两个以上的网络设备。图2所示的通信系统以包括一个网络设备201和一个终端设备202为例。
需要说明的是，本申请实施例的技术方案可以应用于各种通信系统。例如：长期演进(long term evolution，LTE)系统、第五代(5th generation，5G)移动通信系统、5G新空口(new radio，NR)系统，或者其他未来的新型移动通信系统等。
本申请实施例中的网络设备201是网络侧的一种用于发射或接收信号的实体。例如，网络设备201可以为演进型基站(evolved NodeB，eNB)、传输点(transmission reception point，TRP)、NR系统中的下一代基站(next generation NodeB，gNB)、其他未来移动通信系统中的基站或无线保真(wireless fidelity，WiFi)系统中的接入节点等。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。本申请实施例提供的网络设备可以是由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将网络设备，例如基站的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
本申请实施例中的终端设备201是用户侧的一种用于接收或发射信号的实体，如手机。终端设备也可以称为终端设备(terminal)、用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端设备(mobile terminal，MT)等。终端设备可以是具备通信功能的汽车、智能汽车、手机(mobile phone)、穿戴式设备、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备等等。本申请的实施例对终端设备所采用的具体技术和具体设备形态不做限定。
可以理解的是，本申请实施例描述的通信系统是为了更加清楚的说明本申请实施例的技术方案，并不构成对于本申请实施例提供的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本申请实施例提供的技术方案对于类似的技术 问题，同样适用。
下面结合附图对本申请所提供的用于天线切换的探测参考信号SRS触发方法及其装置进行详细地介绍。
请参见图3，图3是本申请实施例提供的一种用于天线切换的探测参考信号SRS触发方法的流程图。需要说明的是，本申请实施例的用于天线切换的探测参考信号SRS触发方法由网络设备执行。如图3所示，该用于天线切换的探测参考信号SRS触发方法可以包括但不限于如下步骤。
步骤301，接收终端设备发送的能力上报信息，能力上报信息用于表示终端设备支持的天线切换配置组合。
可以理解，为了适用当前业务或者场景，终端设备可能需要改变天线配置，例如从2T4R降低为1T4R或者2T2R，或者从2T2R改变为4T4R的情况，这时就需要使用不同的功能为“天线切换”的SRS资源配置用于下行CSI的获取。可选地，终端设备可以根据当前业务或者场景告知网络设备终端设备需要改变天线配置，终端设备可以通过向网络设备发送能力上报信息的方式来告知网络设备。例如，终端设备可以向网络设备发送该终端设备的能力上报信息，以使得网络设备接收到该终端设备发送的能力上报信息，该能力上报信息可以表示该终端设备支持的天线切换配置组合。
在一种实现方式中，不同版本的终端所支持的UE能力也会不同，也就是说终端支持的天线切换配置组合也会不同，为了能够更加灵活和快速的切换或者回退到不同的天线切换配置，本申请实施例可以通过终端设备将自身所支持的天线切换配置组合上报给网络设备，以便网络设备接收到该终端设备发送的能力上报信息，能够为终端设备动态配置上行SRS资源。
步骤302，根据能力上报信息，为终端设备动态配置上行SRS资源。
在一种实现方式中，对于天线切换配置的SRS可以允许在同一个带宽部分BWP上由RRC(Radio Resource Control，无线资源控制)信令配置UE能够支持的不同天线切换配置的SRS资源集合；其中，每种天线切换配置可以包含一个或多个非周期SRS资源集合，同时配置的SRS还包含其他功能(如“码本”，“非码本”，“波束管理”等)的SRS资源集合。
步骤303，向终端设备发送下行链路控制信息DCI，DCI用于触发SRS资源集合。
其中，在本申请实施例中，该SRS资源集合与天线切换配置相对应。
在一种实现方式中，该SRS资源集合可以包含天线切换配置所对应的SRS资源集合，还可以包含其他功能的至少一个SRS资源集合。例如，还可以包含其他功能(如“码本”，“非码本”，“波束管理”等)的一个或多个SRS资源集合。
本公开中的“SRS配置”是指网络设备安排要让终端UE遵从的参数值；“SRS触发”是指网络设备将网络设备配置的SRS参数值通过控制信令传递给终端设备的动作。
可选地，网络设备在根据能力上报信息，为终端设备动态配置上行SRS资源之后，可以使用DCI来实现灵活的SRS资源触发。例如，网络设备可以向终端设备发送DCI，该DCI可以用于触发SRS资源集合，该SRS资源集合可以包含天线切换配置所对应的SRS 资源集合配置，还可以包含其他功能(如“码本”，“非码本”，“波束管理”等)的一个或多个SRS资源集合。
需要说明的是，本申请实施例给出了几种在同一BWP上使用DCI来实现灵活的SRS资源触发方法，例如，可以通过扩展DCI信令中的SRS请求指示域，或者，可以使用并重定义SRS请求指示域，或者，可以使用现有DCI域与其他功能DCI域中的比特，或者，使用现有DCI域与其他功能DCI域中的码点，或者，使用扩展的DCI2-3或者设计新的用户分组下行链路控制信息GC-DCI等，下面将从这几种方法分别进行详细描述。
在本申请一些实施例中，网络设备可以向终端设备发送下行链路控制信息DCI，DCI中包含扩展的非周期SRS请求指示域，扩展的SRS请求指示域指示终端设备触发一个或多个SRS资源集合。
作为一种实例，上述一个或多个SRS资源集合可以包含指定天线切换配置对应的SRS集合配置；或者，上述一个或多个SRS资源集合包含指定天线切换配置对应的SRS资源集合中的至少部分SRS资源集合。其中，术语“至少部分”可以理解为“部分”或“全部”。
在一种实现方式中，上述扩展的SRS请求指示域分别设置不同的SRS资源集合，该不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，并通过扩展后的SRS触发参数对应的码点进行触发。
举例而言，网络设备可以通过扩展DCI信令中的SRS请求(request)指示域指示终端触发一个或者多个SRS资源集合，可以包含发送哪个天线切换对应的SRS集合配置，也可以包含某一个天线切换配置对应的SRS资源集合中的全部或者部分SRS资源集合。例如，扩展SRS请求指示域，分别设置不同功能的SRS资源集合对应的非周期SRS资源触发参数(aperiodicSRS-ResourceTrigger)为相同或不同的数值，并通过扩展后的SRS触发参数对应的码点(SRS trigger codepoint)触发。又如，扩展SRS请求指示域，分别设置同一天线切换配置的SRS资源集合对应的非周期SRS资源触发参数为相同或不同的数值，并通过扩展后的SRS触发参数对应的码点进行触发。由此，网络设备可以通过扩展DCI信令中的SRS请求指示域来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备可以向终端设备发送扩展的下行链路控制信息DCI，扩展的DCI中包含重定义的非周期SRS请求指示域，重定义的SRS请求指示域用于触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置。其中，该至少一种功能的SRS资源集合可理解为包含天线切换配置在内的一种或多种功能的SRS资源集合。
作为一种示例，上述触发至少一种功能的SRS资源集合可以包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，该位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
作为另一种示例，上述触发至少一种功能的SRS资源集合可以包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
举例而言，网络设备可以使用并重定义DCI中的非周期SRS请求指示域，用于触发对应可以包含天线切换配置在内的一种或者多种功能的SRS资源集合，可以分别配置包含各种切换配置的SRS资源集对应的标志ID在内的各种功能的SRS资源集合组成的bitmap或 者codepoint来激活，例如t1r1-t1r2-t1r4，分别配置t1r1/t1r2/t1r4为“010”，则为激活t1r2配置对应的SRS资源集合配置。由此，网络设备可以通过重定义DCI中的非周期SRS请求指示域来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备可以向终端设备发送下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域，DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
举例而言，网络设备可以使用现有DCI域与其他unused(功能)DCI域中的比特联合指示需要触发的SRS资源集合对应的码点，例如，当DCI0-1/0-2使用SRS trigger without data and without CSI(无数据无CSI的SRS触发参数)触发时，同时使用unused field(功能字段)，如TPC，FDRA，TDRA等联合触发SRS资源。由此，网络设备可以通过现有DCI域与其他功能DCI域中的比特来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备可以向终端设备发送下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
举例而言，网络设备可以使用现有DCI域与其他unused(功能)DCI域中的码点联合指示所有的触发码点，并通过两个DCI指示域联合指示，需要定义具体的联合指示规则，例如，DMRS(Demodulation Reference Signal，解调参考信号)天线端口指示域中的码点。由此，网络设备可以使用现有DCI域与其他功能DCI域中的码点来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备可以向终端设备发送扩展的DCI2-3信令，该扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
举例而言，网络设备可以使用扩展的DCI2-3指示SRS触发请求域对应的触发码点，并可用于一组UE的SRS增强触发，从而可以节省信令的开销。由此，网络设备可以使用扩展的DCI2-3指示SRS触发请求域来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备可以向终端设备发送用户分组下行链路控制信息GC-DCI，该GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
举例而言，网络设备可以设计新的GC-DCI指示SRS触发请求域对应的触发码点，并可用于一组UE的SRS增强触发，从而可以节省信令的开销。由此，网络设备可以设计新的GC-DCI指示SRS触发请求域来实现灵活的SRS资源触发。
在本申请一些实施例中，网络设备还可以通过媒体接入控制层控制单元MAC CE更新以上方法对应的触发码点，可用于快速配置。
通过实施本申请实施例，可以在同一BWP上使用DCI来实现灵活的SRS资源触发，可以更加灵活和快速的切换或者回退到不同的天线切换配置，从而可以满足当前业务或者场景的天线需求。
可以理解，上述实施例是从网络设备侧描述本申请实施例的用于天线切换的探测参考 信号SRS触发方法的实现方式。本申请实施例还提出了一种用于天线切换的探测参考信号SRS触发方法，下面将从终端设备侧描述该用于天线切换的探测参考信号SRS触发方法的实现方式。请参见图4，图4是本申请实施例提供的又一种用于天线切换的探测参考信号SRS触发方法的流程图。需要说明的是，本申请实施例的用于天线切换的探测参考信号SRS触发方法可应用于终端设备。如图4所示，该用于天线切换的探测参考信号SRS触发方法可以包括但不限于如下步骤。
步骤401，向网络设备发送能力上报信息，能力上报信息用于表示终端设备支持的天线切换配置组合。
可以理解，为了适用当前业务或者场景，终端设备可能需要改变天线配置，例如从2T4R降低为1T4R或者2T2R，或者从2T2R改变为4T4R的情况，这时就需要使用不同的功能为“天线切换”的SRS资源配置用于下行CSI的获取。可选地，终端设备可以根据当前业务或者场景告知网络设备终端设备需要改变天线配置，终端设备可以通过向网络设备发送能力上报信息的方式来告知网络设备。例如，终端设备可以向网络设备发送该终端设备的能力上报信息，以使得网络设备接收到该终端设备发送的能力上报信息，该能力上报信息可以表示该终端设备支持的天线切换配置组合。
在一种实现方式中，不同版本的终端所支持的UE能力也会不同，也就是说终端支持的天线切换配置组合也会不同，为了能够更加灵活和快速的切换或者回退到不同的天线切换配置，本申请实施例可以通过终端设备将自身所支持的天线切换配置组合上报给网络设备，以便网络设备接收到该终端设备发送的能力上报信息，能够为终端设备动态配置上行SRS资源。
步骤402，接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI用于触发SRS资源集合，该SRS资源集合与天线切换配置相对应。
作为一种示例，该SRS资源集合可以包含天线切换配置所对应的SRS资源集合，还可以包含其他功能的至少一个SRS资源集合。
在一种实现方式中，对于天线切换配置的SRS可以允许在同一个带宽部分BWP上由RRC(Radio Resource Control，无线资源控制)信令配置UE能够支持的不同天线切换配置的SRS资源集合；其中，每种天线切换配置可以包含一个或多个非周期SRS资源集合，同时配置的SRS还包含其他功能(如“码本”，“非码本”，“波束管理”等)的SRS资源集合。
可选地，网络设备在根据能力上报信息，为终端设备动态配置上行SRS资源之后，可以使用DCI来实现灵活的SRS资源触发。例如，网络设备可以向终端设备发送DCI，从而使得终端设备可以接收到网络设备发送的DCI，该DCI可以用于触发SRS资源集合，该SRS资源集合可以包含天线切换配置所对应的SRS资源集合配置，还可以包含其他功能(如“码本”，“非码本”，“波束管理”等)的一个或多个SRS资源集合。
需要说明的是，本申请实施例给出了几种在同一BWP上使用DCI来实现灵活的SRS资源触发方法，例如，可以通过扩展DCI信令中的SRS请求指示域，或者，可以使用并重定义SRS请求指示域，或者，可以使用现有DCI域与其他功能DCI域中的比特，或者， 使用现有DCI域与其他功能DCI域中的码点，或者，使用扩展的DCI2-3或者设计新的用户分组下行链路控制信息GC-DCI等，下面将从这几种方法分别进行详细描述。
在本申请一些实施例中，终端设备可以接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI中包含扩展的非周期SRS请求指示域，扩展的SRS请求指示域指示终端设备触发一个或多个SRS资源集合。
作为一种示例，上述一个或多个SRS资源集合可以包含指定天线切换配置对应的SRS集合配置；或者，上述一个或多个SRS资源集合可以包含指定天线切换配置对应的SRS资源集合中的至少部分SRS资源集合。其中，术语“至少部分”可以理解为“部分”或“全部”。
在一种实现方式中，上述扩展的SRS请求指示域分别设置不同的SRS资源集合，该不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，并通过扩展后的SRS触发参数对应的码点进行触发。
举例而言，网络设备可以通过扩展DCI信令中的SRS请求(request)指示域指示终端触发一个或者多个SRS资源集合，可以包含发送哪个天线切换对应的SRS集合配置，也可以包含某一个天线切换配置对应的SRS资源集合中的全部或者部分SRS资源集合。例如，扩展SRS请求指示域，分别设置不同功能的SRS资源集合对应的非周期SRS资源触发参数(aperiodicSRS-ResourceTrigger)为相同或不同的数值，并通过扩展后的SRS触发参数对应的码点(SRS trigger codepoint)触发。又如，扩展SRS请求指示域，分别设置同一天线切换配置的SRS资源集合，该同一天线切换配置的SRS资源集合对应的非周期SRS资源触发参数为相同或不同的数值，并通过扩展后的SRS触发参数对应的码点进行触发。由此，终端设备通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备可以接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的扩展的下行链路控制信息DCI，扩展的DCI中包含重定义的非周期SRS请求指示域被重定义，重定义的SRS请求指示域用于触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置。其中，该至少一种功能的SRS资源集合可理解为。
作为一种示例，上述触发至少一种功能的SRS资源集合可以包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，该位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
作为另一种示例，上述触发至少一种功能的SRS资源集合可以包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
举例而言，网络设备可以使用并重定义DCI中的非周期SRS请求指示域，用于触发对应可以包含天线切换配置在内的一种或者多种功能的SRS资源集合，可以分别配置包含各种切换配置的SRS资源集对应的标志ID在内的各种功能的SRS资源集合组成的bitmap或者codepoint来激活，例如t1r1-t1r2-t1r4，分别配置t1r1/t1r2/t1r4为“010”，则为激活t1r2配置对应的SRS资源集合配置。由此，网络设备可以通过重定义DCI中的非周期SRS请 求指示域来实现灵活的SRS资源触发。终端设备可以通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备可以接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域，DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
举例而言，网络设备可以使用现有DCI域与其他unused(功能)DCI域中的比特联合指示需要触发的SRS资源集合对应的码点，例如，当DCI0-1/0-2使用SRS trigger without data and without CSI(无数据无CSI的SRS触发参数)触发时，同时使用unused field(功能字段)，如TPC，FDRA，TDRA等联合触发SRS资源。由此，网络设备可以通过现有DCI域与其他功能DCI域中的比特来实现灵活的SRS资源触发。终端设备可以通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备可以接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，所述DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
举例而言，网络设备可以使用现有DCI域与其他unused(功能)DCI域中的码点联合指示所有的触发码点，并通过两个DCI指示域联合指示，需要定义具体的联合指示规则，例如，DMRS(Demodulation Reference Signal，解调参考信号)天线端口指示域中的码点。由此，网络设备可以使用现有DCI域与其他功能DCI域中的码点来实现灵活的SRS资源触发。终端设备可以通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备可以接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的扩展的DCI2-3信令，所述扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
举例而言，网络设备可以使用扩展的DCI2-3指示SRS触发请求域对应的触发码点，并可用于一组UE的SRS增强触发，从而可以节省信令的开销。由此，网络设备可以使用扩展的DCI2-3指示SRS触发请求域来实现灵活的SRS资源触发。终端设备可以通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备可以接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的用户分组下行链路控制信息GC-DCI，GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
举例而言，网络设备可以设计新的GC-DCI指示SRS触发请求域对应的触发码点，并可用于一组UE的SRS增强触发，从而可以节省信令的开销。由此，网络设备可以设计新的GC-DCI指示SRS触发请求域来实现灵活的SRS资源触发。终端设备可以通过接收到的网络设备发送的该DCI信令，确定网络设备对SRS资源的配置，从而可以进行天线切换。
在本申请一些实施例中，终端设备还可以接收网络设备发送的媒体接入控制层控制单 元MAC CE；其中，MAC CE用于更新对应的触发码点。也就是说，网络设备还可以通过媒体接入控制层控制单元MAC CE更新以上方法对应的触发码点，可用于快速配置。这样，终端设备在接收到网络设备发送的MAC CE，可以用于更新对应的触发码点，从而达到快速配置的目的。
通过实施本申请实施例，可以在同一BWP上使用DCI来实现灵活的SRS资源触发，可以更加灵活和快速的切换或者回退到不同的天线切换配置，从而可以满足当前业务或者场景的天线需求。
上述本申请提供的实施例中，分别从网络设备、终端设备的角度对本申请实施例提供的方法进行了介绍。为了实现上述本申请实施例提供的方法中的各功能，网络设备和终端设备可以包括硬件结构、软件模块，以硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各功能。上述各功能中的某个功能可以以硬件结构、软件模块、或者硬件结构加软件模块的方式来执行。
请参见图5，为本申请实施例提供的一种通信装置50的结构示意图。如图5所示的通信装置50可包括处理模块501和收发模块502。收发模块502可包括发送模块和/或接收模块，发送模块用于实现发送功能，接收模块用于实现接收功能，收发模块502可以实现发送功能和/或接收功能。
通信装置50可以是网络设备，也可以是网络设备中的装置，还可以是能够与网络设备匹配使用的装置。或者，通信装置50可以是终端设备，也可以是终端设备中的装置，还可以是能够与终端设备匹配使用的装置。
通信装置50为网络设备：在本申请实施例中，收发模块502用于接收终端设备发送的能力上报信息，能力上报信息用于表示终端设备支持的天线切换配置组合；处理模块501用于根据能力上报信息，为终端设备动态配置上行SRS资源；收发模块502还用于向终端设备发送下行链路控制信息DCI，DCI用于触发SRS资源集合，SRS资源集合与天线切换配置相对应。作为一种示例，该SRS资源集合可以包含天线切换配置所对应的SRS资源集合和其他功能的至少一个SRS资源集合。
在一种实现方式中，DCI用于触发天线切换配置所对应的SRS资源集合，包括：
所述DCI中包含扩展的非周期SRS请求指示域，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合。
在一种可能的实现方式中，至少一个SRS资源集合包含发送指定天线切换配置对应的SRS集合配置；或者，至少一个SRS资源集合包含指定天线切换配置对应的SRS资源集合中的至少部分SRS资源集合。
在一种可能的实现方式中，扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，包括：扩展的非周期SRS请求指示域分别设置不同的SRS资源集合，所述不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
在一种可能的实现方式中，扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，还包括：扩展的非周期SRS请求指示域分别设置同一个天线切换配置的SRS 资源集合，所述同一个天线切换配置的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
在一种实现方式中，收发模块502具体用于：向终端设备发送扩展的下行链路控制信息DCI，扩展的DCI中包含重定义的非周期SRS请求指示域，重定义的非周期SRS请求指示域用于触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置。
在一种可能的实现方式中，触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，所述位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
在一种可能的实现方式中，触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
在一种实现方式中，收发模块502具体用于：向终端设备发送下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域，DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
在一种实现方式中，收发模块502具体用于：向终端设备发送下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
在一种实现方式中，收发模块502具体用于：向终端设备发送扩展的DCI2-3信令，扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS；或者，向终端设备发送用户分组下行链路控制信息GC-DCI，GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
在一种实现方式中，处理模块501还用于通过媒体接入控制层控制单元MAC CE更新对应的触发码点。
通信装置50为终端设备：在本申请实施例中，收发模块502用于向网络设备发送能力上报信息，能力上报信息用于表示终端设备支持的天线切换配置组合；收发模块502还用于接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI用于SRS资源集合，所述SRS资源集合与天线切换配置相对应。作为一种示例，所述SRS资源集合包含天线切换配置所对应的SRS资源集合和其他功能的至少一个SRS资源集合。
在一种实现方式中，DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应，包括：所述DCI中包含扩展的非周期SRS请求指示域，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合。
在一种可能的实现方式中，至少一个SRS资源集合包含发送指定天线切换配置对应的SRS集合配置；或者，至少一个SRS资源集合包含指定天线切换配置对应的SRS资源集合中的至少部分SRS资源集合。
在一种可能的实现方式中，扩展的非周期SRS请求指示域指示终端设备触发至少一个 SRS资源集合，包括：扩展的SRS请求指示域分别设置不同的SRS资源集合，所述不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
在一种可能的实现方式中，扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，还包括：扩展的非周期SRS请求指示域分别设置同一个天线切换配置的SRS资源集合，所述同一个天线切换配置的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
在一种实现方式中，收发模块502具体用于：接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的扩展的下行链路控制信息DCI，所述扩展的DCI中包含重定义的非周期SRS请求指示域，所述重定义的非周期SRS请求指示域用于触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置。
在一种可能的实现方式中，触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，所述位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
在一种可能的实现方式中，所述触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
在一种实现方式中，收发模块502具体用于：接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域，DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
在一种实现方式中，收发模块502具体用于：接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
在一种实现方式中，收发模块502具体用于：接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的扩展的DCI2-3信令，扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS；或者，接收网络设备在根据能力上报信息为终端设备动态配置上行SRS资源后发送的用户分组下行链路控制信息GC-DCI，GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
在一种实现方式中，收发模块502还用于：接收网络设备发送的媒体接入控制层控制单元MAC CE；其中，MAC CE用于更新对应的触发码点。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述，此处将不做详细阐述说明。
请参见图6，图6是本申请实施例提供的另一种通信装置60的结构示意图。通信装置60可以是网络设备，也可以是终端设备，也可以是支持网络设备实现上述方法的芯片、芯片系统、或处理器等，还可以是支持终端设备实现上述方法的芯片、芯片系统、或处理器等。该装置可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
通信装置60可以包括一个或多个处理器601。处理器601可以是通用处理器或者专用处理器等。例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置(如，基站、基带芯片，终端设备、终端设备芯片，DU或CU等)进行控制，执行计算机程序，处理计算机程序的数据。
可选的，通信装置60中还可以包括一个或多个存储器602，其上可以存有计算机程序604，处理器601执行所述计算机程序604，以使得通信装置60执行上述方法实施例中描述的方法。可选的，所述存储器602中还可以存储有数据。通信装置60和存储器602可以单独设置，也可以集成在一起。
可选的，通信装置60还可以包括收发器605、天线606。收发器605可以称为收发单元、收发机、或收发电路等，用于实现收发功能。收发器605可以包括接收器和发送器，接收器可以称为接收机或接收电路等，用于实现接收功能；发送器可以称为发送机或发送电路等，用于实现发送功能。
可选的，通信装置60中还可以包括一个或多个接口电路607。接口电路607用于接收代码指令并传输至处理器601。处理器601运行所述代码指令以使通信装置60执行上述方法实施例中描述的方法。
通信装置60为网络设备：处理器601用于执行图3中的步骤302。收发器605用于执行图3中的步骤301和步骤303。
通信装置60为终端设备：收发器605用于执行图4中的步骤401和步骤402。
在一种实现方式中，处理器601中可以包括用于实现接收和发送功能的收发器。例如该收发器可以是收发电路，或者是接口，或者是接口电路。用于实现接收和发送功能的收发电路、接口或接口电路可以是分开的，也可以集成在一起。上述收发电路、接口或接口电路可以用于代码/数据的读写，或者，上述收发电路、接口或接口电路可以用于信号的传输或传递。
在一种实现方式中，处理器601可以存有计算机程序603，计算机程序603在处理器601上运行，可使得通信装置60执行上述方法实施例中描述的方法。计算机程序603可能固化在处理器601中，该种情况下，处理器601可能由硬件实现。
在一种实现方式中，通信装置60可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种IC工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor，CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide  semiconductor，PMOS)、双极结型晶体管(bipolar junction transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
以上实施例描述中的通信装置可以是接收端或发送端，但本申请中描述的通信装置的范围并不限于此，而且通信装置的结构可以不受图6的限制。通信装置可以是独立的设备或者可以是较大设备的一部分。例如所述通信装置可以是：
(1)独立的集成电路IC，或芯片，或，芯片系统或子系统；
(2)具有一个或多个IC的集合，可选的，该IC集合也可以包括用于存储数据，计算机程序的存储部件；
(3)ASIC，例如调制解调器(Modem)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；
(6)其他等等。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、电脑软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请实施例还提供一种用于天线切换的探测参考信号SRS触发的通信系统，该系统包括前述图5实施例中作为网络设备的通信装置和作为终端设备的通信装置，或者，该系统包括前述图6实施例中作为网络设备的通信装置和作为终端设备的通信装置。
本申请还提供一种可读存储介质，其上存储有指令，该指令被计算机执行时实现上述任一方法实施例的功能。
本申请还提供一种计算机程序产品，该计算机程序产品被计算机执行时实现上述任一方法实施例的功能。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机程序。在计算机上加载和执行所述计算机程序时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机程序可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机程序可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)、光介质(例如，高密度数字视频光盘(digital video disc，DVD))、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本领域普通技术人员可以理解：本申请中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。
本申请中的至少一个还可以描述为一个或多个，多个可以是两个、三个、四个或者更多个，本申请不做限制。在本申请实施例中，对于一种技术特征，通过“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”等区分该种技术特征中的技术特征，该“第一”、“第二”、“第三”、“A”、“B”、“C”和“D”描述的技术特征间无先后顺序或者大小顺序。
本申请中各表所示的对应关系可以被配置，也可以是预定义的。各表中的信息的取值仅仅是举例，可以配置为其他值，本申请并不限定。在配置信息与各参数的对应关系时，并不一定要求必须配置各表中示意出的所有对应关系。例如，本申请中的表格中，某些行示出的对应关系也可以不配置。又例如，可以基于上述表格做适当的变形调整，例如，拆分，合并等等。上述各表中标题示出参数的名称也可以采用通信装置可理解的其他名称，其参数的取值或表示方式也可以通信装置可理解的其他取值或表示方式。上述各表在实现时，也可以采用其他的数据结构，例如可以采用数组、队列、容器、栈、线性表、指针、链表、树、图、结构体、类、堆、散列表或哈希表等。
本申请中的预定义可以理解为定义、预先定义、存储、预存储、预协商、预配置、固化、或预烧制。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (33)

  1. 一种用于天线切换的探测参考信号SRS触发方法，其特征在于，所述方法应用于网络设备，所述方法包括：
    接收终端设备发送的能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
    根据所述能力上报信息，为所述终端设备动态配置上行SRS资源；
    向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
  2. 根据权利要求1所述的方法，其特征在于，所述SRS资源集合包含以下至少一项：天线切换配置所对应的SRS资源集合；
    其他功能的至少一个SRS资源集合；
    所述其它功能为除天线切换配置之外的功能。
  3. 根据权利要求2所述的方法，其特征在于，所述DCI用于触发天线切换配置所对应的SRS资源集合，包括：
    所述DCI中包含扩展的非周期SRS请求指示域，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合。
  4. 根据权利要求3所述的方法，其特征在于，
    所述至少一个SRS资源集合包含指定天线切换配置对应的全部SRS资源集合或者至少部分SRS资源集合
  5. 根据权利要求3所述的方法，其特征在于，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，包括：
    所述扩展的非周期SRS请求指示域设置不同的SRS资源集合，所述不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
  6. 根据权利要求5所述的方法，其特征在于，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，还包括：
    所述扩展的非周期SRS请求指示域设置同一个天线切换配置的SRS资源集合，所述同一个天线切换配置的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
  7. 根据权利要求2所述的方法，其特征在于，所述向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，包括：
    向所述终端设备发送扩展的下行链路控制信息DCI，所述扩展的DCI中包含重定义的非周期SRS请求指示域，所述重定义的非周期SRS请求指示域用于触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置。
  8. 根据权利要求7所述的方法，其特征在于，所述触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：
    配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，所述位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
  9. 根据权利要求7所述的方法，其特征在于，所述触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：
    配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
  10. 根据权利要求2所述的方法，其特征在于，所述向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，包括：
    向所述终端设备发送下行链路控制信息DCI，所述DCI包括用于天线切换配置的DCI域和其他功能DCI域，所述DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
  11. 根据权利要求2所述的方法，其特征在于，所述向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，包括：
    向所述终端设备发送下行链路控制信息DCI，所述DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，所述DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
  12. 根据权利要求2所述的方法，其特征在于，所述向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，包括：
    向所述终端设备发送扩展的DCI2-3信令，所述扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS；
    或者，向所述终端设备发送用户分组下行链路控制信息GC-DCI，所述GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
  13. 根据权利要求5-6、9、11和12中任一项所述的方法，其特征在于，还包括：
    通过媒体接入控制层控制单元MAC CE更新对应的触发码点。
  14. 一种用于天线切换的探测参考信号SRS触发方法，其特征在于，所述方法应用于 终端设备，所述方法包括：
    向网络设备发送能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
    接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
  15. 根据权利要求14所述的方法，其特征在于，所述SRS资源集合包含天线切换配置所对应的SRS资源集合和其他功能的至少一个SRS资源集合。
  16. 根据权利要求15所述的方法，其特征在于，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应，包括：
    所述DCI中包含扩展的非周期SRS请求指示域，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合。
  17. 根据权利要求15所述的方法，其特征在于，
    所述至少一个SRS资源集合包含发送指定天线切换配置对应的SRS集合配置；或者，
    所述至少一个SRS资源集合包含指定天线切换配置对应的SRS资源集合中的至少部分SRS资源集合。
  18. 根据权利要求15所述的方法，其特征在于，所述扩展的非周期SRS请求指示域指示终端设备触发一个或多个SRS资源集合，包括：
    所述扩展的非周期SRS请求指示域设置不同的SRS资源集合，所述不同的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
  19. 根据权利要求18所述的方法，其特征在于，所述扩展的非周期SRS请求指示域指示终端设备触发至少一个SRS资源集合，还包括：
    所述扩展的非周期SRS请求指示域设置同一个天线切换配置的SRS资源集合，所述同一个天线切换配置的SRS资源集合对应的非周期SRS资源触发参数相同或不同，所述触发为通过扩展后的SRS资源触发参数对应的码点进行触发。
  20. 根据权利要求15所述的方法，其特征在于，所述接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于SRS资源集合，包括：
    接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的扩展的下行链路控制信息DCI，所述扩展的DCI中包含重定义的非周期SRS请求指示域，所述重定义的非周期SRS请求指示域用于触发至少一种功能的SRS资源集合，所述 至少一种功能包含天线切换配置。
  21. 根据权利要求20所述的方法，其特征在于，所述触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：
    配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的位图bitmap来激活；其中，所述位图bitmap中包含与天线切换配置相对应的SRS资源集合的标志ID。
  22. 根据权利要求20所述的方法，其特征在于，所述触发至少一种功能的SRS资源集合，所述至少一种功能包含天线切换配置，包括：
    配置由所述至少一种功能中各功能的SRS资源集合对应的标志ID组成的码点codepoint来激活；其中，所述码点codepoint中包含与天线切换配置相对应的的SRS资源集的标志ID。
  23. 根据权利要求15所述的方法，其特征在于，所述接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于SRS资源集合，包括：
    接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI包括用于天线切换配置的DCI域和其他功能DCI域，所述DCI域和其他功能DCI域中的比特联合指示需要触发的SRS资源集合对应的码点。
  24. 根据权利要求15所述的方法，其特征在于，所述接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于SRS资源集合，包括：
    接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI包括用于天线切换配置的DCI域和其他功能DCI域的码点；其中，所述DCI域和其他功能DCI域中的码点联合指示所有的触发码点。
  25. 根据权利要求15所述的方法，其特征在于，所述接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于SRS资源集合，包括：
    接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的扩展的DCI2-3信令，所述扩展的DCI2-3信令用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS；
    或者，接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的用户分组下行链路控制信息GC-DCI，所述GC-DCI用于指示SRS触发请求域对应的触发码点，并用于增强触发一组终端设备的SRS。
  26. 根据权利要求18-19、22-25中任一项所述的方法，其特征在于，还包括：
    接收所述网络设备发送的媒体接入控制层控制单元MAC CE；其中，所述MAC CE用于更新对应的触发码点。
  27. 一种通信装置，其特征在于，包括：
    收发模块，所述收发模块用于接收终端设备发送的能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
    处理模块，所述处理模块用于根据所述能力上报信息，为所述终端设备动态配置上行SRS资源；
    所述收发模块，还用于向所述终端设备发送下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
  28. 根据权利要求27所述的通信装置，其特征在于，所述SRS资源集合包含天线切换配置所对应的SRS资源集合和其他功能的至少一个SRS资源集合。
  29. 一种通信装置，其特征在于，包括：
    收发模块，所述收发模块用于向网络设备发送能力上报信息，所述能力上报信息用于表示所述终端设备支持的天线切换配置组合；
    所述收发模块，还用于接收所述网络设备在根据所述能力上报信息为所述终端设备动态配置上行SRS资源后发送的下行链路控制信息DCI，所述DCI用于触发SRS资源集合，所述SRS资源集合与天线切换配置相对应。
  30. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求1～13中任一项所述的方法。
  31. 一种通信装置，其特征在于，所述装置包括处理器和存储器，所述存储器中存储有计算机程序，所述处理器执行所述存储器中存储的计算机程序，以使所述装置执行如权利要求14～26中任一项所述的方法。
  32. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求1～13中任一项所述的方法被实现。
  33. 一种计算机可读存储介质，用于存储有指令，当所述指令被执行时，使如权利要求14～26中任一项所述的方法被实现。
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