WO2022022103A1 - 非周期探测参考信号的发送方法及设备 - Google Patents

非周期探测参考信号的发送方法及设备 Download PDF

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Publication number
WO2022022103A1
WO2022022103A1 PCT/CN2021/099505 CN2021099505W WO2022022103A1 WO 2022022103 A1 WO2022022103 A1 WO 2022022103A1 CN 2021099505 W CN2021099505 W CN 2021099505W WO 2022022103 A1 WO2022022103 A1 WO 2022022103A1
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Prior art keywords
time slot
serving cell
user equipment
aperiodic srs
dci
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English (en)
French (fr)
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沈兴亚
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • 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
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the embodiments of the present application relate to the field of mobile communication technologies, and in particular, to a method and device for sending an aperiodic sounding reference signal (Sounding Reference Signal, SRS for short).
  • SRS Sounding Reference Signal
  • a user equipment In uplink transmission, a user equipment (User Equipment, UE) needs to send an SRS to a network device for the network device to listen to uplink channel state information, thereby implementing functions such as frequency selective scheduling and link adaptation.
  • UE User Equipment
  • a network device may send downlink control information (Downlink Control Indicator, DCI for short) to trigger the UE to send an aperiodic SRS.
  • DCI Downlink Control Indicator
  • the time when the UE sends the aperiodic SRS may collide with the time when the UE receives the PDSCH, thus causing the UE to fail to send the aperiodic SRS.
  • PDSCH Physical Downlink Shared Channel
  • the embodiments of the present application provide a method and device for sending an aperiodic sounding reference signal, which can solve the problem that when one DCI schedules multiple PDSCHs, the time when the UE sends the aperiodic SRS may conflict with the time when the UE receives the PDSCH, thus causing the UE to fail.
  • Technical issues of sending aperiodic SRS can solve the problem that when one DCI schedules multiple PDSCHs, the time when the UE sends the aperiodic SRS may conflict with the time when the UE receives the PDSCH, thus causing the UE to fail.
  • an embodiment of the present application provides a method for sending an aperiodic sounding reference signal, including:
  • the user equipment receives DCI for scheduling at least two PDSCHs and for triggering the user equipment to send aperiodic SRS.
  • the first time slot is determined according to the time slot in which the last PDSCH of the at least two PDSCHs is located.
  • the target time slot for sending the aperiodic SRS is determined according to whether the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, and the first time slot.
  • the aperiodic SRS is transmitted in the target slot.
  • the target timeslot of the aperiodic SRS includes:
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, the number of the first time slot interval and the second time slot interval The number of time slot intervals to determine the target time slot.
  • the target time slot is determined.
  • the number of the first time slot intervals is configured by the network device, and the number of the second time slot intervals is determined according to parameters configured by the network device, and the parameters configured by the network device include receiving physical downlink control channels (Physical Downlink Control Channel, PDCCH) the first parameter group of the carrier on which the aperiodic SRS is sent and the second parameter group of the carrier on which the aperiodic SRS is sent; the first parameter group and the second parameter group respectively include the following parameters At least one of: subcarrier spacing, number of time slots.
  • PDCCH Physical Downlink Control Channel
  • the target timeslot of the aperiodic SRS includes:
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, the number of the first time slot interval and the second time slot interval The number of time slot intervals is determined, the first target time slot is determined, and the first available time slot after the first target time slot is determined as the target time slot.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the first time slot and the number of intervals of the first time slot, A second target time slot is determined, and the first available time slot after the second target time slot is determined as the target time slot.
  • the number of the first time slot interval is greater than or equal to the number of time slots occupied by the preparation time required by the user equipment before sending the aperiodic SRS, and the second time slot interval number is based on Determined by the parameters configured by the network device, the parameters configured by the network device include the first parameter group of the carrier where the PDCCH is received and the second parameter group of the carrier where the aperiodic SRS is sent; the first parameter group and the The second parameter group respectively includes at least one of the following parameters: subcarrier spacing, number of time slots.
  • the determining the first time slot according to the time slot where the last PDSCH in the at least two PDSCHs is located includes:
  • the first PDSCH is determined according to the time slot where the last PDSCH of the at least two PDSCHs is located, and the subcarrier spacing of the uplink carrier where the user equipment is located during uplink transmission and the subcarrier spacing of the downlink carrier where the user equipment is located during downlink reception. time slot.
  • the determining the first time slot according to the time slot where the last PDSCH in the at least two PDSCHs is located includes:
  • N is a natural number less than or equal to the number of the first time slot interval.
  • the determining the first time slot according to the time slot where the last PDSCH in the at least two PDSCHs is located includes:
  • the subcarrier spacing is used to determine the first time slot; N is a natural number, and N is less than or equal to the number of PDSCHs scheduled by the DCI.
  • the method further includes:
  • the second time slot is determined according to the position of the time slot where the DCI is located, and the subcarrier spacing of the uplink carrier where the user equipment is located during uplink transmission and the subcarrier spacing of the downlink carrier where the user equipment is located during downlink reception.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the second time slot, the number of first time slot intervals, the second time slot The number of slot intervals and the position of the time slot where the last PDSCH in the at least two PDSCHs is located determine the target time slot.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the second time slot, the number of first time slot intervals, and the at least The position of the time slot where the last PDSCH in the two PDSCHs is located determines the target time slot.
  • the number of the first time slot intervals is configured by the network device, and the number of the second time slot intervals is determined according to parameters configured by the network device, and the parameters configured by the network device include the carrier where the PDCCH is received.
  • the method further includes:
  • the second time slot is determined according to the position of the time slot where the DCI is located, and the subcarrier spacing of the uplink carrier where the user equipment is located during uplink transmission and the subcarrier spacing of the downlink carrier where the user equipment is located during downlink reception.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the second time slot, the number of first time slot intervals, the second time slot The number of slot intervals, and the position of the time slot where the last PDSCH in the at least two PDSCHs is located, determine the first target time slot, and determine the first available time slot after the first target time slot as the the target time slot.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the second time slot, the number of first time slot intervals, and the at least The position of the time slot where the last PDSCH in the two PDSCHs is located determines the second target time slot, and the first available time slot after the second target time slot is determined as the target time slot.
  • the number of the first time slot interval is greater than or equal to the number of time slots occupied by the preparation time required by the user equipment before sending the aperiodic SRS, and the second time slot interval number is based on Determined by the parameters configured by the network device, the parameters configured by the network device include the first parameter group of the carrier where the PDCCH is received and the second parameter group of the carrier where the aperiodic SRS is sent; the first parameter group and the The second parameter group respectively includes at least one of the following parameters: subcarrier spacing, number of time slots.
  • the target timeslot of the aperiodic SRS includes:
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, the number of the first time slot interval and the second time slot interval The number of time slot intervals is determined, the first target time slot is determined, and the first available time slot after the first target time slot is determined as the target time slot.
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the first time slot and the number of intervals of the first time slot, A second target time slot is determined, and the first available time slot after the second target time slot is determined as the target time slot.
  • the number of the first time slot intervals is configured by the network device, and the number of the second time slot intervals is determined according to parameters configured by the network device.
  • the parameters configured by the network device include the location where the PDCCH is received.
  • the first parameter group of the carrier and the second parameter group of the carrier where the aperiodic SRS is sent; the first parameter group and the second parameter group respectively include at least one of the following parameters: subcarrier spacing, time number of gaps.
  • the sending the aperiodic SRS in the target time slot includes:
  • the aperiodic SRS is sent in the target time slot.
  • an embodiment of the present application provides an apparatus for sending an aperiodic sounding reference signal, and the apparatus includes:
  • a receiving module configured to receive downlink control information DCI, where the DCI is used to schedule at least two physical downlink shared channels PDSCH, and to trigger the user equipment to send an aperiodic sounding reference signal SRS.
  • a processing module configured to determine the first time slot according to the time slot where the last PDSCH of the at least two PDSCHs is located.
  • the processing module is further configured to, according to whether the serving cell scheduled by the DCI and the serving cell that the user equipment sends the aperiodic SRS is the same serving cell, and the first time slot, determine whether to send the aperiodic SRS. Target slot for periodic SRS.
  • a sending module configured to send the aperiodic SRS in the target time slot.
  • an embodiment of the present application provides a user equipment, including: at least one processor and a memory; the memory stores computer-executable instructions; the at least one processor executes the computer-executable instructions stored in the memory, so that the At least one processor executes the method for sending an aperiodic sounding reference signal as provided in the first aspect.
  • embodiments of the present application provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium.
  • the first PDSCH is determined according to the time slot where the last PDSCH in the at least two PDSCHs is located.
  • the data is obtained by combining the serving cell scheduled by DCI, the serving cell where the user equipment sends aperiodic SRS, and the time slot where the last PDSCH is located in the at least two PDSCHs. Determining the target time slot for sending the aperiodic SRS can effectively avoid conflict between the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH, thereby ensuring that the UE can send the aperiodic SRS normally.
  • FIG. 1 is a schematic structural diagram of a wireless communication system provided in an embodiment of the application
  • FIG. 2 is a schematic flowchart 1 of a method for sending an aperiodic sounding reference signal according to an embodiment of the present application
  • FIG. 3 is a second schematic flowchart of a method for sending an aperiodic sounding reference signal according to an embodiment of the present application
  • FIG. 4 is a schematic diagram 1 of a time slot allocation provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram 2 of a time slot allocation provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram 3 of a time slot allocation provided by an embodiment of the present application.
  • FIG. 7 is a third schematic flowchart of a method for sending an aperiodic sounding reference signal according to an embodiment of the present application.
  • FIG. 8 is a schematic diagram of program modules of an apparatus for sending an aperiodic sounding reference signal provided in an embodiment of the present application
  • FIG. 9 is a schematic diagram of a hardware structure of a user equipment provided in an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • New Radio, NR evolution system of NR system
  • LTE LTE-based access to unlicensed spectrum, LTE-U
  • NR NR-based access to unlicensed spectrum on unlicensed spectrum, NR-U
  • Universal Mobile Telecommunication System UMTS
  • WLAN Wireless Local Area Networks
  • WiFi Wireless Fidelity
  • next-generation communication systems or other communication systems etc.
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • This embodiment of the present application does not limit the applied spectrum.
  • the embodiments of the present application may be applied to licensed spectrum, and may also be applied to unlicensed spectrum.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application.
  • the wireless communication system provided in this embodiment includes a UE 101 and a network device 102 .
  • UE101 may refer to various forms of user equipment, access terminals, subscriber units, subscriber stations, mobile stations, mobile stations (mobile stations, MS for short), remote stations, remote terminals, mobile equipment, terminal equipment ( terminal equipment), wireless communication equipment, user agent or user equipment.
  • It can also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks or in future evolved Public Land Mobile Networks (PLMN)
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN Public Land Mobile Networks
  • the embodiments of this application define the unidirectional communication link from the access network to the UE as the downlink, the data transmitted on the downlink is the downlink data, and the transmission direction of the downlink data is called the downlink direction;
  • the unidirectional communication link is the uplink, the data transmitted on the uplink is the uplink data, and the transmission direction of the uplink data is called the uplink direction.
  • the network device 102 is a public mobile communication network device, which is an interface device for the UE 101 to access the Internet, and is also a form of a radio station.
  • a radio transceiver station including a Base Station (BS for short), also known as base station equipment, is a device deployed in a Radio Access Network (RAN) to provide wireless communication functions.
  • BS Base Station
  • RAN Radio Access Network
  • devices that provide base station functions in 2G networks include Base Transceiver Stations (BTS for short), devices that provide base station functions in 3G networks include Node Bs (NodeBs), and devices that provide base station functions in 4G networks include evolved In the wireless local area network (Wireless Local Area Networks, referred to as WLAN), the device that provides the base station function is the access point (Access Point, referred to as AP), and in 5G NR, the device that provides the base station function
  • the device gNB, and the continuously evolved Node B (ng-eNB) wherein the NR technology is used for communication between the gNB and the UE, and the Evolved Universal Terrestrial Radio Access (Evolved Universal Terrestrial Radio Access) is used between the ng-eNB and the UE.
  • the network device 102 in the embodiment of the present application also includes a device that provides a base station function in a new communication system in the future, and the like.
  • the network device 102 may send downlink scheduling information (DL Grant) to the UE 101 through downlink control information (Downlink Control Information, DCI for short), indicating PDSCH transmission, so that the UE 101 receives data.
  • DCI Downlink Control Information
  • the same DCI may include scheduling information of at least two PDSCHs.
  • the above DCI can also trigger the UE 101 to send an aperiodic SRS.
  • the detection of the uplink channel is completed by a sounding (detection) signal.
  • the base station can obtain uplink channel information, so as to perform resource scheduling and measurement of uplink transmission.
  • the SRS in the LTE/NR system can be sent periodically, that is, the terminal device will continue to send the sounding signal at a certain period until it enters a state of no data transmission.
  • the parameters of the periodic SRS are configured by the high layer, including the CS (Cycle Shift, cyclic shift) of the SRS, bandwidth, frequency hopping parameters, period, and transmission subframe position.
  • aperiodic SRS transmission is introduced into the LTE-A/NR system. Different from periodic SRS, aperiodic SRS is dynamically activated by the base station. Once activated, the user equipment will only send a one-time sounding signal instead of periodically sending signals. Through the aperiodic sounding signal, the base station can obtain the required channel information more flexibly, and close or reduce the transmission of the periodic SRS when conditions permit, thereby reducing the physical resource overhead of the SRS.
  • the time at which the UE sends the aperiodic SRS may collide with the time at which the UE receives the PDSCH, thereby causing the UE to fail to send the aperiodic SRS.
  • an embodiment of the present application provides a method for sending an aperiodic sounding reference signal.
  • the DCI is used to schedule at least two PDSCHs
  • the serving cell and user equipment scheduled by the DCI are combined to send the service of the aperiodic SRS.
  • the target time slot for sending the aperiodic SRS is determined by determining the target time slot for sending the aperiodic SRS by using the cell and the time slot where the last PDSCH of the at least two PDSCHs is located, which can effectively avoid conflict between the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH.
  • FIG. 2 is a schematic flowchart 1 of a method for sending an aperiodic sounding reference signal according to an embodiment of the present application.
  • the execution body of this embodiment is the UE in the embodiment shown in FIG. 1 .
  • the method includes:
  • the user equipment receives DCI, where the DCI is used for scheduling at least two PDSCHs and for triggering the user equipment to send an aperiodic SRS.
  • the user equipment after receiving the DCI sent by the network device, the user equipment parses the downlink scheduling information included in the DCI, and determines the PDSCH scheduled by the DCI.
  • the DCI includes the scheduling information of two or more PDSCHs , and continue to perform the following steps S202 to S204; when the DCI only includes scheduling information of one PDSCH, the user equipment can send the aperiodic SRS according to the time slot indicated by the network device.
  • the PDSCH is a type of physical downlink channel in a wireless communication system, and is used to transmit downlink user data.
  • the base station needs to designate and allocate time domain resources and frequency domain resources to the downlink data before data transmission can be performed on the PDSCH.
  • the position of each PDSCH in the time domain may be determined according to the start symbol and symbol length of each PDSCH in the above at least two PDSCHs in the time domain, and then the last PDSCH is determined from the above at least two PDSCHs The location where the PDSCH is located, and the slot where the last PDSCH is located.
  • the first time slot can be determined according to the time slot, and the first time slot can be the time slot where the last PDSCH of the at least two PDSCHs is located.
  • N is a natural number greater than 0.
  • S203 Determine the target time slot for sending the aperiodic SRS according to whether the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, and the first time slot.
  • the first time slot after the first time slot is determined, it is detected whether the serving cell scheduled by DCI and the serving cell where the user equipment sends aperiodic SRS are the same serving cell, and then according to the detection result and the first time slot , determine the target time slot for sending aperiodic SRS.
  • the target time slot may be the mth time slot (m is a natural number greater than 0) after the time slot where the last PDSCH of the at least two PDSCHs is located.
  • the target time slot may be the first available time slot after the time slot in which the last PDSCH of the at least two PDSCHs is located.
  • the serving cell scheduled by DCI, the serving cell where user equipment sends aperiodic SRS, and the above at least two PDSCHs are combined
  • the target time slot for sending aperiodic SRS is determined by the time slot where the last PDSCH is located, which can effectively avoid the conflict between the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH, so as to ensure that the UE can send the aperiodic SRS normally.
  • FIG. 3 is a second schematic flowchart of a method for sending an aperiodic sounding reference signal provided by an embodiment of the present application.
  • the method for sending aperiodic sounding reference signals includes:
  • the user equipment receives DCI, where the DCI is used for scheduling at least two PDSCHs and for triggering the user equipment to send an aperiodic SRS.
  • S302. Determine the first time slot according to the time slot where the last PDSCH of the at least two PDSCHs is located.
  • step S303 Detect whether the serving cell scheduled by the DCI is the same as the serving cell where the user equipment sends the aperiodic SRS. If no, go to step S304; if yes, go to step S305.
  • step S304 Determine the target time slot according to the position of the first time slot, and the number of intervals of the first time slot and the number of intervals of the second time slot. Continue to execute step S306.
  • step S305 Determine the target time slot according to the position of the first time slot and the number of intervals of the first time slot. Continue to execute step S306.
  • the number of the above-mentioned first time slot intervals is configured by the network device, and the above-mentioned number of the second time slot intervals is determined according to parameters configured by the network device, and the parameters include the first parameter group of the carrier where the PDCCH is received and the transmission
  • the above-mentioned target time slot Ks may be determined in the following manner:
  • the above target time slot Ks can be determined in the following manner:
  • ⁇ SRS represents the subcarrier spacing of the uplink carrier where the user equipment transmits aperiodic SRS in uplink
  • ⁇ PDCCH represents the subcarrier spacing of the downlink carrier where the user equipment downlink receives PDCCH.
  • k represents the number of the first time slot interval, which is configured by the network device through radio resource control (Radio Resource Control, RRC) signaling.
  • RRC Radio Resource Control
  • the first parameter group of the carrier where the PDCCH is received includes ⁇ offset, PDCCH (representing the subcarrier spacing of the carrier where the PDCCH is received), (indicates the number of time slots of the carrier on which the PDCCH is received or the time domain parameters of the carrier on which the PDCCH is received);
  • the second parameter group of the carrier on which the aperiodic SRS is sent includes: (indicates the subcarrier spacing of the carrier where the aperiodic SRS is sent), (Indicates the number of time slots of the carrier on which the aperiodic SRS is sent or the time domain parameter of the carrier on which the aperiodic SRS is sent).
  • n represents the position of the time slot where the last PDSCH of the at least two PDSCHs is located.
  • FIG. 4 is a schematic diagram of time slot allocation provided by an embodiment of the present application.
  • the target slot for SRS is slot 5.
  • n represents the position of the Nth time slot after the time slot where the last PDSCH of the at least two PDSCHs is located, and N is a natural number less than or equal to the number of first time slot intervals.
  • FIG. 5 is a second schematic diagram of time slot allocation provided by an embodiment of the present application.
  • n represents the position of the Nth time slot before the time slot where the last PDSCH in the above at least two PDSCHs is located, N is a natural number, and N is less than or equal to the number of PDSCHs scheduled by DCI number.
  • FIG. 6 is a schematic diagram 3 of a time slot allocation provided by an embodiment of the present application.
  • the serving cell scheduled by DCI and the serving cell where user equipment transmits aperiodic SRSs are combined with the above at least two PDSCHs.
  • the mth (m is a natural number greater than 0) time slot after the time slot where the last PDSCH is located in the middle of the group is used to send the aperiodic SRS, which can effectively avoid the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH.
  • mth m is a natural number greater than 0
  • FIG. 7 is a schematic flowchart of a third method for sending an aperiodic sounding reference signal provided by an embodiment of the present application.
  • the method for sending aperiodic sounding reference signals includes:
  • the user equipment receives DCI, where the DCI is used for scheduling at least two PDSCHs and for triggering the user equipment to send an aperiodic SRS.
  • S702 Determine the first time slot according to the time slot where the last PDSCH of the at least two PDSCHs is located.
  • step S703. Detect whether the serving cell scheduled by the DCI is the same as the serving cell where the user equipment sends the aperiodic SRS. If no, go to step S704; if yes, go to step S705.
  • step S704. Determine the first target time slot according to the position of the first time slot, and the number of intervals between the first time slot and the second time slot, and determine the first available time slot after the first target time slot is the target time slot. Continue to step S706.
  • step S705. Determine the second target time slot according to the position of the first time slot and the number of intervals of the first time slot, and determine the first available time slot after the second target time slot as the target time slot. Continue to step S706.
  • the above-mentioned available time slot represents a time slot that can be used to transmit aperiodic SRS.
  • the time slot where the last PDSCH in the above-mentioned at least two PDSCHs is located is the time slot after the above-mentioned first target time slot or the second target time slot. The interval between the first available time slots satisfies the processing capability of the user equipment.
  • the number of the above-mentioned first time slot intervals is greater than or equal to the number of time slots occupied by the preparation time required by the user equipment before sending the aperiodic SRS, and the above-mentioned number of the second time slot intervals is based on definite.
  • the above-mentioned target time slot may be the first one after the first target time slot Ks available time slots.
  • the first target time slot Ks can be determined in the following manner:
  • the above target time slot may be the first available time slot after the second target time slot Ks', where the second target time slot Ks'
  • the time slot Ks' can be determined by:
  • k represents the number of the above-mentioned first time slot interval, which is determined according to the switching time required for uplink and downlink transmission on the user equipment side and/or the preparation time for the user equipment to send SRS.
  • n represents the position of the time slot where the last PDSCH of the at least two PDSCHs is located.
  • n represents the position of the Nth time slot after the time slot where the last PDSCH of the at least two PDSCHs is located, and N is a natural number less than or equal to the number of first time slot intervals.
  • n represents the position of the Nth time slot before the time slot where the last PDSCH in the above at least two PDSCHs is located, N is a natural number, and N is less than or equal to the number of PDSCHs scheduled by DCI number.
  • the serving cell scheduled by DCI and the serving cell where user equipment transmits aperiodic SRSs are combined with the above at least two PDSCHs.
  • the aperiodic SRS can be sent in the first available time slot after the time slot where the last PDSCH is located, which can effectively avoid the conflict between the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH, so as to ensure that the UE can send non-periodic SRS normally.
  • the foregoing method for sending aperiodic sounding reference signals includes:
  • the above target time slot may be the first available time slot after the first target time slot Ks.
  • the first target time slot Ks can be determined in the following manner:
  • the above target time slot may be the first available time slot after the second target time slot Ks', where the second target time slot Ks'
  • the time slot Ks' can be determined by:
  • k represents the number of the above-mentioned first time slot interval, which is configured by the network device through RRC signaling.
  • n represents the position of the time slot in which the last PDSCH of the at least two PDSCHs is located.
  • the aperiodic SRS is sent in the target time slot, and the PDSCH is not received; thus, it can be avoided that the time when the UE sends the aperiodic SRS is different from the time when the UE receives the PDSCH.
  • the UE cannot send aperiodic SRS.
  • the PDSCH is received in the target time slot, and the aperiodic SRS is not sent, thereby avoiding the time when the UE sends the aperiodic SRS and the UE.
  • FIG. 8 is an aperiodic sounding reference signal provided by an embodiment of the present application.
  • the apparatus 80 for sending the aperiodic sounding reference signal includes:
  • the receiving module 801 is configured to receive downlink control information DCI, where the DCI is used to schedule at least two PDSCHs and to trigger the user equipment to send aperiodic SRS.
  • the processing module 802 is configured to determine the first time slot according to the time slot where the last PDSCH in the above at least two PDSCHs is located; whether the serving cell scheduled according to the DCI and the serving cell that the user equipment sends the aperiodic SRS are the same serving cell, and the above-mentioned first time slot, determine the target time slot for transmitting the aperiodic SRS.
  • the sending module 803 is configured to send the aperiodic SRS in the target time slot.
  • the apparatus 80 for sending an aperiodic sounding reference signal provided by the embodiment of the present application, when the DCI is used to schedule at least two PDSCHs, the serving cell scheduled by the DCI, the serving cell where the user equipment sends the aperiodic SRS, and the above at least two
  • the time slot of the last PDSCH in the PDSCH is used to determine the target time slot for sending aperiodic SRS, which can effectively avoid the conflict between the time when the UE sends the aperiodic SRS and the time when the UE receives the PDSCH, so as to ensure that the UE can send the aperiodic SRS normally. .
  • processing module 802 is specifically used for:
  • the serving cell scheduled by the DCI and the serving cell that the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, the number of the first time slot interval and the number of the second time slot interval, determine target slot.
  • the target time slot is determined according to the position of the first time slot and the number of intervals of the first time slot;
  • the number of first time slot intervals is configured by the network device, and the number of second time slot intervals is determined according to parameters configured by the network device.
  • the parameters configured by the network device include the first parameter group of the carrier where the PDCCH is received and the The second parameter group of the carrier where the aperiodic SRS is sent; the first parameter group and the second parameter group respectively include at least one of the following parameters: subcarrier interval, number of time slots.
  • processing module 802 is specifically used for:
  • the serving cell scheduled by the DCI and the serving cell that the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, the number of the first time slot interval and the number of the second time slot interval, determine The first target time slot, and the first available time slot after the first target time slot is determined as the target time slot; when the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, According to the position of the first time slot and the number of intervals of the first time slot, the second target time slot is determined, and the first available time slot after the second target time slot is determined as the target time slot.
  • the number of first time slot intervals is greater than or equal to the number of time slots occupied by the preparation time required by the user equipment before sending the aperiodic SRS, and the number of second time slot intervals is determined according to parameters configured by the network device.
  • processing module 802 is further configured to:
  • the first time slot is determined according to the time slot where the last PDSCH of the at least two PDSCHs is located, the subcarrier spacing of the uplink carrier where the user equipment is located during uplink transmission and the subcarrier spacing of the downlink carrier where the user equipment is located during downlink reception.
  • processing module 802 is further configured to:
  • N is a natural number less than or equal to the number of intervals of the first time slot.
  • processing module 802 is further configured to:
  • N is a natural number, and N is less than or equal to the number of PDSCHs scheduled by DCI.
  • processing module 802 is further configured to:
  • the serving cell scheduled by DCI and the serving cell where the user equipment sends aperiodic SRS are not the same serving cell, according to the position of the second time slot, the number of first time slot intervals, the number of second time slot intervals, and the above at least The position of the time slot where the last PDSCH in the two PDSCHs is located to determine the target time slot;
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the second time slot, the number of the first time slot interval, and the last of the at least two PDSCHs The position of the time slot where a PDSCH is located to determine the target time slot;
  • the number of first time slot intervals is configured by the network device, and the number of second time slot intervals is determined according to parameters configured by the network device.
  • the parameters configured by the network device include the first parameter group of the carrier where the PDCCH is received and the The second parameter group of the carrier where the aperiodic SRS is sent; the first parameter group and the second parameter group respectively include at least one of the following parameters: subcarrier spacing, number of time slots.
  • processing module 802 is further configured to:
  • the serving cell scheduled by DCI and the serving cell where the user equipment sends aperiodic SRS are not the same serving cell, according to the position of the second time slot, the number of first time slot intervals, the number of second time slot intervals, and the above at least The position of the time slot where the last PDSCH in the two PDSCHs is located, the first target time slot is determined, and the first available time slot after the first target time slot is determined as the target time slot;
  • the serving cell scheduled by the DCI and the serving cell that the user equipment sends the aperiodic SRS are the same serving cell, according to the position of the second time slot, the number of the first time slot interval, and the last PDSCH among the at least two PDSCHs
  • the position of the time slot where it is located, the second target time slot is determined, and the first available time slot after the second target time slot is determined as the target time slot;
  • the number of the first time slot interval is greater than or equal to the number of time slots occupied by the preparation time required by the user equipment before sending the aperiodic SRS, and the number of the second time slot interval is determined according to the parameters configured by the network device of.
  • processing module 802 is further configured to:
  • the serving cell scheduled by the DCI and the serving cell where the user equipment sends the aperiodic SRS are not the same serving cell, according to the position of the first time slot, and the number of the first time slot interval and the number of the second time slot interval, determining the first target time slot, and determining the first available time slot after the first target time slot as the target time slot;
  • the second target time slot is determined according to the position of the first time slot and the number of intervals of the first time slot, and the The first available time slot after the two target time slots is determined as the target time slot;
  • the number of first time slot intervals is configured by the network device, and the number of second time slot intervals is determined according to parameters configured by the network device.
  • the sending module 803 is also used for:
  • the aperiodic SRS is sent in the target time slot.
  • the device 80 for sending the aperiodic sounding reference signal may be a chip or a chip module or the like.
  • modules included in the apparatus 80 for sending aperiodic sounding reference signals described in the foregoing embodiments may be software modules or hardware modules, or may be partly software modules and partly hardware modules.
  • each module contained therein may be implemented by hardware such as circuits, or at least some of the modules may be implemented by a software program that runs inside the chip
  • the remaining (if any) modules can be implemented by hardware such as circuits; for each device and product applied to or integrated in the chip module, each module contained therein can be implemented by hardware such as circuits.
  • different modules may be located in the same component (such as chip, circuit module, etc.) or different components of the chip module, or, at least some modules may be implemented in the form of software programs that run on the processing integrated inside the chip module
  • the remaining (if any) modules can be implemented by hardware such as circuits; for each device and product applied to or integrated in the terminal, the modules included can be implemented by hardware such as circuits, and different modules can be located in the terminal.
  • the software program runs on the processor integrated inside the terminal, and the remaining (if any) part of the modules can be It is realized by hardware such as circuit.
  • an embodiment of the present application further provides a user equipment, the user equipment includes at least one processor and a memory; wherein, the memory stores computer execution instructions; the above-mentioned at least one processor The computer-executed instructions stored in the memory are executed to implement the content described in each embodiment of the above-mentioned method for sending an aperiodic sounding reference signal.
  • FIG. 9 is a schematic diagram of a hardware structure of a user equipment according to an embodiment of the present application.
  • the user equipment 90 in this embodiment includes: a processor 901 and a memory 902; wherein
  • a memory 902 for storing computer-executed instructions
  • the processor 901 is configured to execute computer-executed instructions stored in the memory to implement various steps performed by the user equipment in the foregoing embodiments. For details, reference may be made to the relevant descriptions in the foregoing method embodiments.
  • the memory 902 may be independent or integrated with the processor 901 .
  • the device When the memory 902 is set independently, the device further includes a bus 903 for connecting the memory 902 and the processor 901 .
  • the embodiments of the present application further provide a computer-readable storage medium, where computer-executable instructions are stored in the computer-readable storage medium, and when the processor executes the computer-executable instructions , to implement each step performed by the user equipment in the above embodiment.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the modules is only a logical function division. In actual implementation, there may be other division methods.
  • multiple modules may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or modules, and may be in electrical, mechanical or other forms.
  • modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional module in each embodiment of the present application may be integrated in one processing unit, or each module may exist physically alone, or two or more modules may be integrated in one unit.
  • the units formed by the above modules can be implemented in the form of hardware, or can be implemented in the form of hardware plus software functional units.
  • the above-mentioned integrated modules implemented in the form of software functional modules may be stored in a computer-readable storage medium.
  • the above-mentioned software function modules are stored in a storage medium, and include several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute the various embodiments of the present application. part of the method.
  • processor may be a central processing unit (English: Central Processing Unit, referred to as: CPU), or other general-purpose processors, digital signal processors (English: Digital Signal Processor, referred to as: DSP), application-specific integrated circuits (English: Application Specific Integrated Circuit, referred to as: ASIC) and so on.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the application can be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory may include high-speed RAM memory, and may also include non-volatile storage NVM, such as at least one magnetic disk memory, and may also be a U disk, a removable hard disk, a read-only memory, a magnetic disk or an optical disk, and the like.
  • NVM non-volatile storage
  • the bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, or the like.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into address bus, data bus, control bus and so on.
  • the buses in the drawings of the present application are not limited to only one bus or one type of bus.
  • the above-mentioned storage medium may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Except programmable read only memory (EPROM), programmable read only memory (PROM), read only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable except programmable read only memory
  • PROM programmable read only memory
  • ROM read only memory
  • magnetic memory flash memory
  • flash memory magnetic disk or optical disk.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.
  • An exemplary storage medium is coupled to the processor, such that the processor can read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium may be located in application specific integrated circuits (Application Specific Integrated Circuits, ASIC for short).
  • ASIC Application Specific Integrated Circuits
  • the processor and the storage medium may also exist in the electronic device or the host device as discrete components.

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Abstract

本申请实施例提供一种非周期探测参考信号的发送方法及设备，当用户设备接收到的DCI用于调度至少两个PDSCH时，根据该至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙；并根据DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为同一个服务小区，以及上述第一时隙，确定发送非周期SRS的目标时隙，然后在目标时隙发送非周期SRS。在本申请实施例中，当DCI用于调度至少两个PDSCH时，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。

Description

非周期探测参考信号的发送方法及设备
本申请要求于2020年07月31日提交中国专利局、申请号为202010761941.2、申请名称为“非周期探测参考信号的发送方法及设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及移动通信技术领域，尤其涉及一种非周期探测参考信号(Sounding Reference Signal，简称SRS)的发送方法及设备。
背景技术
在上行传输中，用户设备(User Equipment，UE)需要发送SRS给网络设备，用于网络设备侦听上行信道状态信息，从而实现频率选择性调度、链路自适应等功能。
在新空口(New Radio，简称NR)系统中，网络设备可以发送下行控制信息(Downlink Control Indicator，简称DCI)触发UE发送非周期SRS。
然而，当一个DCI调度多个物理下行共享信道(Physical Downlink Shared Channel，简称PDSCH)时，UE发送非周期SRS的时间可能会与UE接收PDSCH的时间冲突，从而导致UE发送非周期SRS失败。
发明内容
本申请实施例提供一种非周期探测参考信号的发送方法及设备，可以解决当一个DCI调度多个PDSCH时，UE发送非周期SRS的时间可能会与UE接收PDSCH的时间冲突，进而导致UE无法发送非周期SRS的技术问题。
第一方面，本申请实施例提供一种非周期探测参考信号的发送方法，包括：
用户设备接收DCI，所述DCI用于调度至少两个PDSCH，以及用于触发所述用户设备发送非周期SRS。
根据所述至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙。
根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙。
在所述目标时隙发送所述非周期SRS。
在一种可能的设计方式中，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定所述目标时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同 一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定所述目标时隙。
其中，所述第一时隙间隔个数是由网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收物理下行控制信道(Physical Downlink Control Channel，PDCCH)时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
在一种可能的设计方式中，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定第二目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙。
其中，所述第一时隙间隔个数大于或等于所述用户设备在发送所述非周期SRS之前所需的准备时间所占用的时隙个数，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
在一种可能的设计方式中，所述根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙，包括：
根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙。
在一种可能的设计方式中，所述根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙，包括：
根据所述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第N个时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙；N为小于或等于所述第一时隙间隔个数的自然数。
在一种可能的设计方式中，所述根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙，包括：
根据所述至少两个PDSCH中最后一个PDSCH所在的时隙之前的第N个时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙；N为自然数，且N小于或等于所述DCI调度的PDSCH的个数。
在一种可能的设计方式中，所述方法还包括：
根据所述DCI所在的时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定所述目标时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定所述目标时隙。
其中，所述第一时隙间隔个数是由网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
在一种可能的设计方式中，所述方法还包括：
根据所述DCI所在的时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定第二目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙。
其中，所述第一时隙间隔个数大于或等于所述用户设备在发送所述非周期SRS之前所需的准备时间所占用的时隙个数，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
在一种可能的设计方式中，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙。
当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定第二 目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙。
其中，所述第一时隙间隔个数为所述网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
所述在所述目标时隙发送所述非周期SRS，包括：
当所述目标时隙与所述至少两个PDSCH中的任意一个PDSCH所在的时隙重叠时，在所述目标时隙发送所述非周期SRS。
第二方面，本申请实施例提供一种非周期探测参考信号的发送装置，该装置包括：
接收模块，用于接收下行控制信息DCI，所述DCI用于调度至少两个物理下行共享信道PDSCH，以及用于触发所述用户设备发送非周期探测参考信号SRS。
处理模块，用于根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙。
所述处理模块，还用于根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙。
发送模块，用于在所述目标时隙发送所述非周期SRS。
第三方面，本申请实施例提供一种用户设备，包括：至少一个处理器和存储器；所述存储器存储计算机执行指令；所述至少一个处理器执行所述存储器存储的计算机执行指令，使得所述至少一个处理器执行如第一方面提供的非周期探测参考信号的发送方法。
第四方面，本申请实施例提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机执行指令，当处理器执行所述计算机执行指令时，实现如第一方面提供的非周期探测参考信号的发送方法。
本申请实施例所提供的非周期探测参考信号的发送方法及设备，当用户设备接收到的DCI用于调度至少两个PDSCH时，根据该至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙；并根据DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为同一个服务小区，以及上述第一时隙，确定发送非周期SRS的目标时隙，然后在目标时隙发送非周期SRS。在本申请实施例中，当DCI用于调度至少两个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙来确定发送非周期SRS的目标时隙，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对本申请实施例或现有技术描述中所需要使用的附图作一简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其它的附图。
图1为本申请实施例中提供的一种无线通信系统的架构示意图；
图2为本申请实施例中提供的一种非周期探测参考信号的发送方法的流程示意图一；
图3为本申请实施例中提供的一种非周期探测参考信号的发送方法的流程示意图二；
图4为本申请实施例提供的一种时隙分配示意图一；
图5为本申请实施例提供的一种时隙分配示意图二；
图6为本申请实施例提供的一种时隙分配示意图三；
图7为本申请实施例中提供的一种非周期探测参考信号的发送方法的流程示意图三；
图8为本申请实施例中提供的一种非周期探测参考信号的发送装置的程序模块示意图；
图9为本申请实施例中提供的一种用户设备的硬件结构示意图。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
本申请实施例可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、免授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、免授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、通用移动通信系统(Universal Mobile Telecommunication System，UMTS)、无线局域网(Wireless Local Area Networks，WLAN)、无线保真(Wireless Fidelity，WiFi)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。
可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
本申请实施例对应用的频谱并不限定。例如，本申请实施例可以应用于授权频谱，也可以应用于免授权频谱。
参照图1，图1为本申请实施例提供的一种无线通信系统的架构示意图。本实施例提供的无线通信系统包括UE101和网络设备102。
可选的，UE101可以为指各种形式的用户设备、接入终端、用户单元、用户站、移动站、移动台(mobile station，简称MS)、远方站、远程终端、移动设备、终端设备(terminal equipment)、无线通信设备、用户代理或用户装置。还可以是蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol，简称SIP)电话、无线本地环路(Wireless Local Loop，简称WLL)站、掌上电脑(Personal Digital Assistant，简称PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公用陆地移动通信网络(Public Land Mobile Network，简称PLMN)中的终端设备等，本申请实施例对此并不限定，只要该UE101能够与网络设备102无线通信即可。
本申请实施例定义接入网到UE的单向通信链路为下行链路，在下行链路上传输的数据为下行数据，下行数据的传输方向称为下行方向；而UE到接入网的单向通信链路为上行链路，在上行链路上传输的数据为上行数据，上行数据的传输方向称为上行方向。
可选的，网络设备102即公用移动通信网络设备，是UE101接入互联网的接口设备，也是无线电台站的一种形式，是指在一定的无线电覆盖区中，与UE101之间进行信息传递的无线电收发信电台，包括基站(Base Station，简称BS)，也可称为基站设备，是一种部署在无线接入网(Radio Access Network，RAN)用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(Base Transceiver Station，简称BTS)，3G网络中提供基站功能的设备包括节点B(NodeB)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在无线局域网络(Wireless Local Area Networks，简称WLAN)中，提供基站功能的设备为接入点(Access Point，简称AP)，5G NR中的提供基站功能的设备gNB,以及继续演进的节点B(ng-eNB),其中gNB和UE之间采用NR技术进行通信，ng-eNB和UE之间采用演进的通用陆地无线接入网络(Evolved Universal Terrestrial Radio Access,简称E-UTRA)技术进行通信，gNB和ng-eNB均可连接到5G核心网。本申请实施例中的网络设备102还包含在未来新的通信系统中提供基站功能的设备等。
网络设备102可以通过下行控制信息(Downlink Control Information，简称DCI)向UE 101发送下行调度信息(DL Grant)，指示PDSCH传输，以便UE 101接收数据。其中，同一个DCI可以包括至少两个PDSCH的调度信息。另外，上述DCI还可以触发UE101发送非周期SRS。
其中，现有的通信系统中，上行信道的探测通过sounding(探测)信号完成。通过用户设备在SRS子帧的一个或者多个符号发送sounding信号，基站可以获得上行的信道信息，从而进行上行传输的资源调度和测量。LTE/NR系统中的SRS可以周期性发送的，即终端设备会以一定的周期持续发送sounding信号，直到进入无数据传输的状态。周期性SRS的参数都是通过高层配置的，包括SRS的CS(Cycle Shift，循环移位)、带宽、跳频参数、周期和发送子帧位置等。
由于调度周期较长，调度效率较低，周期性SRS经常要占用较多的物理资源。为了提高SRS资源利用率，减少SRS资源的开销，LTE-A/NR系统中引入了非周期的SRS传输。和周期性SRS不同的是，非周期SRS是基站动态激活的，一旦激活后用户设备 只会发送一次性的sounding信号，而不会周期性的发送信号。通过非周期的sounding信号，基站可以更灵活的获得需要的信道信息，在条件允许时关闭或者减少周期性SRS的传输，从而减少SRS的物理资源开销。
目前，当一个DCI用于调度多个PDSCH时，UE发送非周期SRS的时间可能会与UE接收PDSCH的时间冲突，从而导致UE发送非周期SRS失败。
为了解决上述技术问题，本申请实施例中提供了一种非周期探测参考信号的发送方法，当DCI用于调度至少两个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙来确定发送非周期SRS的目标时隙，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突。具体请参照本申请以下实施例：
参照图2，图2为本申请实施例提供的一种非周期探测参考信号的发送方法的流程示意图一，本实施例的执行主体为图1所示实施例中的UE。如图2所示，该方法包括：
S201、用户设备接收DCI，该DCI用于调度至少两个PDSCH，以及用于触发用户设备发送非周期SRS。
本申请实施例中，用户设备在接收到网络设备发送的DCI后，解析DCI中包含的下行调度信息，确定该DCI调度的PDSCH，当该DCI中包括两个或两个以上PDSCH的调度信息时，继续执行以下步骤S202至S204；当该DCI中仅包括一个PDSCH的调度信息时，用户设备则可以按照网络设备指示的时隙发送非周期SRS。
S202、根据上述至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙。
可以理解的是，PDSCH是无线通信系统中物理下行信道的一种，用于传输下行用户数据。而在PDSCH进行下行数据传输时，需要基站给下行数据指定分配时域资源与频域资源才能在PDSCH进行数据传输。本申请实施例中，可以根据上述至少两个PDSCH中各个PDSCH在时域上的起始符号与符号长度，确定各个PDSCH在时域上的位置，进而从上述至少两个PDSCH中确定出最后一个PDSCH所在的位置，以及最后一个PDSCH所在的时隙。
在确定出上述至少两个PDSCH中最后一个PDSCH所在的时隙之后，即可根据该时隙确定第一时隙，该第一时隙可以是上述至少两个PDSCH中最后一个PDSCH所在的时隙之前或者之后的第N个时隙，N为大于0的自然数。
S203、根据DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为同一个服务小区，以及上述第一时隙，确定发送非周期SRS的目标时隙。
本申请实施例中，在确定出上述第一时隙之后，检测DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为同一个服务小区，然后根据该检测结果与上述第一时隙，确定发送非周期SRS的目标时隙。
示例性的，目标时隙可以是上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第m个时隙(m为大于0的自然数)。
或者，目标时隙可以是上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第一个可用时隙。
S204、在目标时隙发送非周期SRS。
本申请实施例所提供的非周期探测参考信号的发送方法，当DCI用于调度至少两个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙来确定发送非周期SRS的目标时隙，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。
基于上述实施例中所描述的内容，在本申请一种可行的实施方式中，参照图3，图3为本申请实施例提供的一种非周期探测参考信号的发送方法的流程示意图二，上述非周期探测参考信号的发送方法包括：
S301、用户设备接收DCI，该DCI用于调度至少两个PDSCH，以及用于触发用户设备发送非周期SRS。
S302、根据上述至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙。
S303、检测DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为相同。若否，则执行步骤S304；若是，则执行步骤S305。
S304、根据第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定目标时隙。继续执行步骤S306。
S305、根据第一时隙的位置，以及第一时隙间隔个数，确定目标时隙。继续执行步骤S306。
其中，上述第一时隙间隔个数是由网络设备配置的，上述第二时隙间隔个数是根据网络设备配置的参数确定的，该参数包括接收PDCCH时所在载波的第一参数组和发送非周期SRS时所在载波的第二参数组；其中，第一参数组与第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
S306、在目标时隙发送非周期SRS。
示例性的，在本申请实施例中，当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，上述目标时隙Ks可以通过以下方式确定：
Figure PCTCN2021099505-appb-000001
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，上述目标时隙Ks可以通过以下方式确定：
Figure PCTCN2021099505-appb-000002
其中，
Figure PCTCN2021099505-appb-000003
可以用于表示上述第一时隙，μSRS表示用户设备上行传输非周期SRS时所在的上行载波的子载波间隔，μPDCCH表示用户设备下行接收PDCCH时所在的下行载波的子载波间隔。k表示上述第一时隙间隔个数,其由网络设备通过无线资源控制(Radio Resource Control，RRC)信令配置。
Figure PCTCN2021099505-appb-000004
表示第二时隙间隔个数，其由用户设备接收PDCCH时所在载波的第一参数组和发送非周期SRS时所在载波的第二参数组。
示例性的，接收PDCCH时所在载波的第一参数组包括μ offset,PDCCH(表示接收PDCCH时所在载波的子载波间隔)、
Figure PCTCN2021099505-appb-000005
(表示接收PDCCH时所在载波的时隙数目或者接收PDCCH时所在载波的时域参数)；发送非周期SRS时所在载波的第二参数组包括
Figure PCTCN2021099505-appb-000006
(表示发送非周期SRS时所在载波的子载波间隔)、
Figure PCTCN2021099505-appb-000007
(表示发送非周期SRS时所在载波的时隙数目或发送非周期SRS时所在载波的时域参数)。
在一种可行的实施方式一中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置。
示例性的，参照图4，图4为本申请实施例提供的一种时隙分配示意图。在图4中，假设当前一个无线帧包含20个时隙(solt)，分别为时隙0、1、2、3、……19；DCI用于调度三个PDSCH，这三个PDSCH所在的时隙分别为时隙0、1、2；假设用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔相同，且k＝2，则可以确定发送非周期SRS的目标时隙为时隙5。
在一种可行的实施方式二中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第N个时隙的位置，N为小于或等于第一时隙间隔个数的自然数。
示例性的，参照图5，图5为本申请实施例提供的一种时隙分配示意图二。在图5中，假设当前一个无线帧包含20个时隙(solt)，分别为时隙0、1、2、3、……19；DCI用于调度三个PDSCH，这三个PDSCH所在的时隙分别为时隙0、1、2；假设用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔相同，且N＝1，k＝2，则可以确定发送非周期SRS的目标时隙为时隙6。
在一种可行的实施方式三中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙之前的第N个时隙的位置，N为自然数，且N小于或等于DCI调度的PDSCH的个数。
示例性的，参照图6，图6为本申请实施例提供的一种时隙分配示意图三。在图6中，假设当前一个无线帧包含20个时隙(solt)，分别为时隙0、1、2、3、……19；DCI用于调度三个PDSCH，这三个PDSCH所在的时隙分别为时隙0、1、2；假设用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔相同，且N＝1，k＝2，则可以确定发送非周期SRS的目标时隙为时隙4。
在一种可行的实施方式四中，n表示上述DCI所在的时隙的位置，k关联到上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，即k＝j+k，其中j是上述DCI调度的PDSCH的数目。
本申请实施例所提供的非周期探测参考信号的发送方法，当DCI用于调度至少两 个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，利用上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第m(m为大于0的自然数)个时隙来发送非周期SRS，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。
基于上述实施例中所描述的内容，在本申请一种可行的实施方式中，参照图7，图7为本申请实施例提供的一种非周期探测参考信号的发送方法的流程示意图三，上述非周期探测参考信号的发送方法包括：
S701、用户设备接收DCI，该DCI用于调度至少两个PDSCH，以及用于触发用户设备发送非周期SRS。
S702、根据上述至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙。
S703、检测DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为相同。若否，则执行步骤S704；若是，则执行步骤S705。
S704、根据第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将第一目标时隙之后的第一个可用时隙确定为目标时隙。继续执行步骤S706。
S705、根据第一时隙的位置，以及第一时隙间隔个数，确定第二目标时隙，并将第二目标时隙之后的第一个可用时隙确定为目标时隙。继续执行步骤S706。
其中，上述可用时隙表示可以用于传输非周期SRS的时隙，可选的，上述至少两个PDSCH中最后一个PDSCH所在的时隙与上述第一目标时隙或第二目标时隙之后的第一个可用时隙之间的间隔满足用户设备的处理能力。
其中，上述第一时隙间隔个数大于或等于用户设备在发送非周期SRS之前所需的准备时间所占用的时隙个数，上述第二时隙间隔个数是根据
Figure PCTCN2021099505-appb-000008
确定的。
S706、在目标时隙发送非周期SRS。
具体的，在本申请实施例中，当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，上述目标时隙可以是第一目标时隙Ks之后的第一个可用时隙。其中，第一目标时隙Ks可以通过以下方式确定：
Figure PCTCN2021099505-appb-000009
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，上述目标时隙可以是第二目标时隙Ks’之后的第一个可用时隙，其中，第二目标时隙Ks’可以通过以下方式确定：
Figure PCTCN2021099505-appb-000010
其中，
Figure PCTCN2021099505-appb-000011
可以用于表示上述第一时隙，k表示上述第一时隙间隔个数,其根据用户设备侧上下行传输所需的切换时间和/或用户设备发送SRS的准备时间确定。
Figure PCTCN2021099505-appb-000012
表示第二时隙间隔个数，其根据网络设备配置的参数确定，具体可以参照上述实施例。
在一种可行的实施方式一中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置。
在一种可行的实施方式二中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第N个时隙的位置，N为小于或等于第一时隙间隔个数的自然数。
在一种可行的实施方式三中，n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙之前的第N个时隙的位置，N为自然数，且N小于或等于DCI调度的PDSCH的个数。
在一种可行的实施方式四中，n表示上述DCI所在的时隙的位置，k关联到上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，即k＝j+k，其中j是上述DCI调度的PDSCH的数目。
本申请实施例所提供的非周期探测参考信号的发送方法，当DCI用于调度至少两个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，利用上述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第一个可用时隙来发送非周期SRS，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。
基于上述实施例中所描述的内容，在本申请一种可行的实施方式中，上述非周期探测参考信号的发送方法包括：
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，上述目标时隙可以是第一目标时隙Ks之后的第一个可用时隙。其中，第一目标时隙Ks可以通过以下方式确定：
Figure PCTCN2021099505-appb-000013
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，上述目标时隙可以是第二目标时隙Ks’之后的第一个可用时隙，其中，第二目标时隙Ks’可以通过以下方式确定：
Figure PCTCN2021099505-appb-000014
其中，k表示上述第一时隙间隔个数,其由网络设备通过RRC信令配置。n表示上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置。
当目标时隙与至少两个PDSCH中的任意一个PDSCH所在的时隙重叠时，在目标时隙发送非周期SRS，不接收PDSCH；由此可以避免当UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突时，UE无法发送非周期SRS的问题。
或者，当目标时隙与至少两个PDSCH中的任意一个PDSCH所在的时隙重叠时，在目标时隙接收PDSCH，不发送非周期SRS，由此可以避免当UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突时，UE无法接收PDSCH的问题。
进一步的，基于上述实施例中所描述的内容，本申请实施例中还提供用一种非周期探测参考信号的发送装置，参照图8，图8为本申请实施例提供的一种非周期探测参考信号的发送装置的程序模块示意图。
本申请实施例中，上述非周期探测参考信号的发送装置80包括：
接收模块801，用于接收下行控制信息DCI，该DCI用于调度至少两个PDSCH，以及用于触发用户设备发送非周期SRS。
处理模块802，用于根据上述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙；根据DCI调度的服务小区与用户设备发送非周期SRS的服务小区是否为同一个服务小区，以及上述第一时隙，确定发送非周期SRS的目标时隙。
发送模块803，用于在目标时隙发送非周期SRS。
本申请实施例所提供的非周期探测参考信号的发送装置80，当DCI用于调度至少两个PDSCH时，结合DCI调度的服务小区、用户设备发送非周期SRS的服务小区，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙来确定发送非周期SRS的目标时隙，可以有效避免UE发送非周期SRS的时间与UE接收PDSCH的时间之间产生冲突，从而保证UE能够正常发送非周期SRS。
可选的，处理模块802具体用于：
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，根据上述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定目标时隙。当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，根据上述第一时隙的位置，以及第一时隙间隔个数，确定目标时隙；
其中，第一时隙间隔个数是由网络设备配置的，第二时隙间隔个数是根据网络设备配置的参数确定的，网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送非周期SRS时所在载波的第二参数组；该第一参数组与第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
可选的，处理模块802具体用于：
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，根据上述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将第一目标时隙之后的第一个可用时隙确定为目标时隙；当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，根据第一时隙的位置，以及第一时隙间隔个数，确定第二目标时隙，并将第二目标时隙之后的第一个可用时隙确定为目标时隙。
其中，第一时隙间隔个数大于或等于用户设备在发送非周期SRS之前所需的准备时间所占用的时隙个数，第二时隙间隔个数是根据网络设备配置的参数确定的。
在一种可行的实施例一中，处理模块802具体还用于：
根据上述至少两个PDSCH中最后一个PDSCH所在的时隙，以及用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第一时隙。
在一种可行的实施例二中，处理模块802具体还用于：
根据所述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第N个时隙的位置，以及用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第一时隙；N为小于或等于上述第一时隙间隔个数的自然数。
在一种可行的实施例三中，处理模块802具体还用于：
根据上述至少两个PDSCH中最后一个PDSCH所在的时隙之前的第N个时隙的位置，以及用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第一时隙；N为自然数，且N小于或等于DCI调度的PDSCH的个数。
在一种可行的实施方式中，处理模块802具体还用于：
根据所述DCI所在的时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙；
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，根据第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定目标时隙；
当所述DCI调度的服务小区与用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据第二时隙的位置、第一时隙间隔个数以及上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定目标时隙；
其中，第一时隙间隔个数是由网络设备配置的，第二时隙间隔个数是根据网络设备配置的参数确定的，网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送非周期SRS时所在载波的第二参数组；第一参数组与第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
在一种可行的实施方式中，处理模块802具体还用于：
根据DCI所在的时隙的位置，以及用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙；
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区不是同一个服务小区时，根据第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定第一目标时隙，并将第一目标时隙之后的第一个可用时隙确定为目标时隙；
当DCI调度的服务小区与用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据第二时隙的位置、第一时隙间隔个数以及上述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定第二目标时隙，并将第二目标时隙之后的第一个可用时隙确定为目标时隙；
其中，第一时隙间隔个数大于或等于用户设备在发送所述非周期SRS之前所需的准备时间所占用的时隙个数，第二时隙间隔个数是根据网络设备配置的参数确定的。
在一种可行的实施方式中，处理模块802具体还用于：
当DCI调度的服务小区与用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将第一目标时隙之后的第一个可用时隙确定为目标时隙；
当DCI调度的服务小区与用户设备发送非周期SRS的服务小区是同一个服务小区时，根据第一时隙的位置，以及第一时隙间隔个数，确定第二目标时隙，并将第二目标时隙之后的第一个可用时隙确定为所述目标时隙；
其中，第一时隙间隔个数为所述网络设备配置的，第二时隙间隔个数是根据网络设备配置的参数确定的。
发送模块803还用于：
当目标时隙与上述至少两个PDSCH中的任意一个PDSCH所在的时隙重叠时，在目标时隙发送非周期SRS。
可以理解的是，上述非周期探测参考信号的发送装置80中的各模块与上述实施例中所描述的非周期探测参考信号的发送方法中的各个步骤，实现原理与方式均相同，故可以参照上述非周期探测参考信号的发送方法中各实施例的描述，在此不再赘述。
可选的，上述非周期探测参考信号的发送装置80可以是芯片或芯片模组等。
关于上述实施例中描述的非周期探测参考信号的发送装置80包含的各模块，其可以是软件模块，也可以是硬件模块，或者也可以部分是软件模块，部分是硬件模块。例如，对于应用于或集成于芯片的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，或者，至少部分模块可以采用软件程序的方式实现，该软件程序运行于芯片内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现；对于应用于或集成于芯片模组的各个装置、产品，其包含的各个模块可以都采用电路等硬件的方式实现，不同的模块可以位于芯片模组的同一组件(例如芯片、电路模块等)或者不同组件中，或者，至少部分模块可以采用软件程序的方式实现，该软件程运行于芯片模组内部集成的处理器，剩余(如果有)部分模块可以采用电路等硬件方式实现；对于应用于或集成于终端的各个装置、产品，其包含的模块可以都采用电路等硬件的方式实现，不同的模块可以位于终端内同一组件(例如，芯片、电路模块等)或者不同组件中，或者至少部分模块可以采用软件程序的方式实现，该软件程序运行于终端内部集成的处理器，剩余的(如果有)部分模块可以采用电路等硬件方式实现。
进一步的，基于上述实施例中所描述的内容，本申请实施例中还提供了一种用户设备，该用户设备包括至少一个处理器和存储器；其中，存储器存储计算机执行指令；上述至少一个处理器执行存储器存储的计算机执行指令，以实现如上述非周期探测参考信号的发送方法中各实施例描述的内容。
为了更好的理解本申请实施例，参照图9，图9为本申请实施例提供的一种用户设备的硬件结构示意图。
如图9所示，本实施例的用户设备90包括：处理器901以及存储器902；其中
存储器902，用于存储计算机执行指令；
处理器901，用于执行存储器存储的计算机执行指令，以实现上述实施例中用户设备所执行的各个步骤，具体可以参见前述方法实施例中的相关描述。
可选地，存储器902既可以是独立的，也可以跟处理器901集成在一起。
当存储器902独立设置时，该设备还包括总线903，用于连接所述存储器902和处理器901。
进一步的，基于上述实施例中所描述的内容，本申请实施例还提供一种计算机可读存储介质，该计算机可读存储介质中存储有计算机执行指令，当处理器执行所述计算机执行指令时，实现如上实施例中用户设备所执行的各个步骤。
在本申请所提供的几个实施例中，应该理解到，所揭露的设备和方法，可以通过其它的方式实现。例如，以上所描述的设备实施例仅仅是示意性的，例如，所述模块的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个模块可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或模块的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能模块可以集成在一个处理单元中，也可以是各个模块单独物理存在，也可以两个或两个以上模块集成在一个单元中。上述模块成的单元既可以采用硬件的形式实现，也可以采用硬件加软件功能单元的形式实现。
上述以软件功能模块的形式实现的集成的模块，可以存储在一个计算机可读取存储介质中。上述软件功能模块存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(英文：processor)执行本申请各个实施例所述方法的部分步骤。
应理解，上述处理器可以是中央处理单元(英文：Central Processing Unit，简称：CPU)，还可以是其他通用处理器、数字信号处理器(英文：Digital Signal Processor，简称：DSP)、专用集成电路(英文：Application Specific Integrated Circuit，简称：ASIC)等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合申请所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
存储器可能包含高速RAM存储器，也可能还包括非易失性存储NVM，例如至少一个磁盘存储器，还可以为U盘、移动硬盘、只读存储器、磁盘或光盘等。
总线可以是工业标准体系结构(Industry Standard Architecture，ISA)总线、外部设备互连(Peripheral Component，PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture，EISA)总线等。总线可以分为地址总线、数据总线、控制总线等。为便于表示，本申请附图中的总线并不限定仅有一根总线或一种类型的总线。
上述存储介质可以是由任何类型的易失性或非易失性存储设备或者它们的组合实 现，如静态随机存取存储器(SRAM)，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。存储介质可以是通用或专用计算机能够存取的任何可用介质。
一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于专用集成电路(Application Specific Integrated Circuits，简称：ASIC)中。当然，处理器和存储介质也可以作为分立组件存在于电子设备或主控设备中。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本申请的技术方案，而非对其限制；尽管参照前述各实施例对本申请进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例技术方案的范围。

Claims (12)

  1. 一种非周期探测参考信号的发送方法，其特征在于，所述方法包括：
    用户设备接收下行控制信息DCI，所述DCI用于调度至少两个物理下行共享信道PDSCH，以及用于触发所述用户设备发送非周期探测参考信号SRS；
    根据所述至少两个PDSCH中最后一个PDSCH所在的时隙确定第一时隙；
    根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙；
    在所述目标时隙发送所述非周期SRS。
  2. 根据权利要求1所述的方法，其特征在于，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定所述目标时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定所述目标时隙；
    其中，所述第一时隙间隔个数是由网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收物理下行控制信道PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
  3. 根据权利要求1所述的方法，其特征在于，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定第二目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙；
    其中，所述第一时隙间隔个数大于或等于所述用户设备在发送所述非周期SRS之前所需的准备时间所占用的时隙个数，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
  4. 根据权利要求2或3所述的方法，其特征在于，所述根据所述至少两个PDSCH 中最后一个PDSCH所在的时隙，确定第一时隙，包括：
    根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙。
  5. 根据权利要求2或3所述的方法，其特征在于，所述根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙，包括：
    根据所述至少两个PDSCH中最后一个PDSCH所在的时隙之后的第N个时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙；N为小于或等于所述第一时隙间隔个数的自然数。
  6. 根据权利要求2或3所述的方法，其特征在于，所述根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙，包括：
    根据所述至少两个PDSCH中最后一个PDSCH所在的时隙之前的第N个时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定所述第一时隙；N为自然数，且N小于或等于所述DCI调度的PDSCH的个数。
  7. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    根据所述DCI所在的时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定所述目标时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定所述目标时隙；
    其中，所述第一时隙间隔个数是由网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
  8. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    根据所述DCI所在的时隙的位置，以及所述用户设备上行传输时所在的上行载波的子载波间隔与下行接收时所在的下行载波的子载波间隔，确定第二时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数、第二时隙间隔个数，以及所述至少两个PDSCH中最后一个PDSCH所在的时隙的位置，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第二时隙的位置、第一时隙间隔个数以及所述至少两个 PDSCH中最后一个PDSCH所在的时隙的位置，确定第二目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙；
    其中，所述第一时隙间隔个数大于或等于所述用户设备在发送所述非周期SRS之前所需的准备时间所占用的时隙个数，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目。
  9. 根据权利要求1所述的方法，其特征在于，所述根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙，包括：
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区不是同一个服务小区时，根据所述第一时隙的位置，以及第一时隙间隔个数与第二时隙间隔个数，确定第一目标时隙，并将所述第一目标时隙之后的第一个可用时隙确定为所述目标时隙；
    当所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是同一个服务小区时，根据所述第一时隙的位置，以及所述第一时隙间隔个数，确定第二目标时隙，并将所述第二目标时隙之后的第一个可用时隙确定为所述目标时隙；
    其中，所述第一时隙间隔个数为所述网络设备配置的，所述第二时隙间隔个数是根据网络设备配置的参数确定的，所述网络设备配置的参数包括接收PDCCH时所在载波的第一参数组和发送所述非周期SRS时所在载波的第二参数组；所述第一参数组与所述第二参数组分别包括以下参数中的至少一种：子载波间隔、时隙数目；
    所述在所述目标时隙发送所述非周期SRS，包括：
    当所述目标时隙与所述至少两个PDSCH中的任意一个PDSCH所在的时隙重叠时，在所述目标时隙发送所述非周期SRS。
  10. 一种非周期探测参考信号的发送装置，其特征在于，所述装置包括：
    接收模块，用于接收下行控制信息DCI，所述DCI用于调度至少两个物理下行共享信道PDSCH，以及用于触发所述用户设备发送非周期探测参考信号SRS；
    处理模块，用于根据所述至少两个PDSCH中最后一个PDSCH所在的时隙，确定第一时隙；
    所述处理模块，还用于根据所述DCI调度的服务小区与所述用户设备发送所述非周期SRS的服务小区是否为同一个服务小区，以及所述第一时隙，确定发送所述非周期SRS的目标时隙；
    发送模块，用于在所述目标时隙发送所述非周期SRS。
  11. 一种用户设备，其特征在于，包括：至少一个处理器和存储器；
    所述存储器存储计算机执行指令；
    所述至少一个处理器执行所述存储器存储的计算机执行指令，使得所述至少一个处理器执行如权利要求1至9任一项所述的非周期探测参考信号的发送方法。
  12. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机执行指令，当处理器执行所述计算机执行指令时，实现如权利要求1至9任一 项所述的非周期探测参考信号的发送方法。
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