WO2022147657A1 - 一种天线切换配置的切换方法及设备 - Google Patents

一种天线切换配置的切换方法及设备 Download PDF

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Publication number
WO2022147657A1
WO2022147657A1 PCT/CN2021/070336 CN2021070336W WO2022147657A1 WO 2022147657 A1 WO2022147657 A1 WO 2022147657A1 CN 2021070336 W CN2021070336 W CN 2021070336W WO 2022147657 A1 WO2022147657 A1 WO 2022147657A1
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WO
WIPO (PCT)
Prior art keywords
antenna switching
csi measurement
trp
configuration information
configuration
Prior art date
Application number
PCT/CN2021/070336
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English (en)
French (fr)
Inventor
刘洋
Original Assignee
北京小米移动软件有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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 PCT/CN2021/070336 priority Critical patent/WO2022147657A1/zh
Priority to CN202180000116.3A priority patent/CN115039447B/zh
Publication of WO2022147657A1 publication Critical patent/WO2022147657A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • H04W36/36Reselection control by user or terminal equipment
    • H04W36/362Conditional handover
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices
    • H04W88/06Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Definitions

  • the present disclosure relates to the technical field of mobile communications, and in particular, to a method and device for switching antenna switching configurations.
  • the terminal may need to change the antenna configuration.
  • the current antenna configuration can be implemented through radio resource control (Radio Resource Control, RRC) reconfiguration or partial bandwidth (Bandwidth Part, BWP) switching.
  • RRC Radio Resource Control
  • BWP Bandwidth Part
  • the present disclosure provides a switching method and device for antenna switching configuration, which can adapt to terminal and service requirements faster and more flexibly and support antenna switching configuration change and rollback.
  • the embodiment of the first aspect of the present disclosure proposes a method for switching antenna switching configuration, the method is applied to a terminal, and the method includes: receiving a channel state information CSI measurement report request related to switching of the antenna switching configuration, wherein the The CSI measurement report request is used to indicate measurement resources for CSI measurement configuration; perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information for antenna switching; and report the CSI measurement report to a network device.
  • the configuration information of the antenna switching includes: at least one channel quality indicator CQI; or at least one group of CQIs and a transmission rank indicator RI corresponding to the antenna switching configuration.
  • the CSI measurement report further includes at least one of the following: a desired number of receiving antennas; a desired number of transmitting antennas; and an antenna switching configuration to which switching is desired.
  • the performing CSI measurement to obtain a CSI measurement report includes: for a network device supporting a single transmission reception point TRP, performing CSI measurement calculation based on a channel measurement resource corresponding to the TRP to obtain the configuration information of the antenna switching to obtain the configuration information of the antenna switching. Obtain the CSI measurement report.
  • the performing the CSI measurement to obtain the CSI measurement report includes: for a network device supporting multi-transmission reception point TRP, determining to participate in joint transmission based on a pre-defined multi-TRP transmission assumption or a multi-TRP transmission mode configured by the network device through signaling. multiple TRPs; perform CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission to obtain the configuration information of the antenna switching corresponding to each TRP participating in the joint transmission and/or based on the corresponding TRPs participating in the joint transmission.
  • the configuration information of the antenna switching is obtained by performing joint CSI measurement calculation on the channel measurement resources, so as to obtain the CSI measurement report.
  • the calculating to obtain the configuration information of the antenna switching includes: calculating the configuration information of the antenna switching according to the number of multiple receiving antennas of the antenna switching capability supported by the terminal and a calculation rule.
  • the calculation rule includes one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; The number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, and the configuration information for antenna switching corresponding to different numbers of receiving antennas is calculated respectively; The number of one or more receiving antennas with the antenna switching capability of the terminal is calculated, and the configuration information of the antenna switching corresponding to the different number of receiving antennas is calculated respectively; The number of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas of the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the obtaining the CSI measurement report includes: receiving a signaling configuration about a reporting method, and according to the signaling configuration, the configuration information and/or joint CSI measurement of antenna switching corresponding to each TRP participating in the joint transmission
  • the obtained configuration information of antenna switching is included in the CSI measurement report; or according to the predetermined reporting method of the terminal, the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or joint CSI measurement are obtained
  • the configuration information of the antenna switching is included in the CSI measurement report.
  • the pre-defined multi-TRP transmission hypothesis includes one of the following: a multi-TRP transmission mode of a recently scheduled downlink channel; a pre-defined multi-TRP transmission mode of a downlink channel.
  • the downlink channel is a physical downlink shared channel PDSCH or a physical downlink control channel PDCCH.
  • An embodiment of the second aspect of the present disclosure provides a method for switching an antenna switching configuration.
  • the method is applied to a network device, and the method includes: sending a channel state information CSI measurement report request related to the switching of the antenna switching configuration to a terminal,
  • the CSI measurement report request is used to indicate the measurement resources of the CSI measurement configuration; receive a CSI measurement report sent by the terminal, where the CSI measurement report includes configuration information of antenna switching; and change the antenna switching of the terminal based on the CSI measurement report configuration.
  • the configuration information of the antenna switching includes: at least one channel quality indicator CQI; or at least one set of CQI and transmission rank indicator RI corresponding to the antenna switching configuration.
  • the CSI measurement report further includes at least one of the following: an expected number of receiving antennas; an expected number of transmitting antennas; and an antenna switching configuration that the terminal expects to switch to.
  • the CSI measurement report is obtained according to the configuration information of antenna switching calculated based on the channel measurement resource corresponding to the TRP by performing CSI measurement.
  • the CSI measurement report is obtained according to the configuration information of antenna switching calculated as follows: based on the channel measurement resources corresponding to each TRP participating in the joint transmission.
  • the configuration information of the antenna switching corresponding to each TRP participating in the joint transmission obtained by performing the CSI measurement calculation; and/or the antenna switching obtained by performing the joint CSI measurement calculation based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission configuration information.
  • the multiple TRPs participating in the joint transmission are determined by a predefined multiple TRP transmission assumption or a multiple TRP transmission mode configured by the network device through signaling.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas of the antenna switching capability supported by the terminal and a calculation rule.
  • the calculation rule includes one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; The number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, and the configuration information for antenna switching corresponding to different numbers of receiving antennas is calculated respectively; The number of one or more receiving antennas with the antenna switching capability of the terminal is calculated, and the configuration information of the antenna switching corresponding to the different number of receiving antennas is calculated respectively; The number of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas of the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the CSI measurement report includes configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or configuration information of antenna switching obtained by joint CSI measurement.
  • the method further includes: sending a signaling to the terminal to configure a reporting method of the configuration information of antenna switching for the terminal, where the reporting method includes: the configuration information of the antenna switching corresponding to each TRP participating in the joint transmission And/or the configuration information of antenna switching obtained by joint CSI measurement is included in the CSI measurement report for reporting.
  • the pre-defined multi-TRP transmission hypothesis includes one of the following: a multi-TRP transmission mode of a recently scheduled downlink channel; a pre-defined multi-TRP transmission mode of a downlink channel.
  • the downlink channel is a physical downlink shared channel PDSCH or a physical downlink control channel PDCCH.
  • a third aspect of the present disclosure provides a switching device for an antenna switching configuration, the device is applied to a terminal, and the device includes: a receiving module, configured to receive channel state information CSI measurement report related to the switching of the antenna switching configuration request, wherein the CSI measurement report request is used to indicate the measurement resources of the CSI measurement configuration; a measurement module is used to perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching; and a sending module, used to report the CSI measurement report to the network device.
  • a receiving module configured to receive channel state information CSI measurement report related to the switching of the antenna switching configuration request, wherein the CSI measurement report request is used to indicate the measurement resources of the CSI measurement configuration
  • a measurement module is used to perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching
  • a sending module used to report the CSI measurement report to the network device.
  • An embodiment of the fourth aspect of the present disclosure provides a switching device for an antenna switching configuration, the method is applied to a network device, and the device includes: a sending module configured to send channel state information related to switching of the antenna switching configuration to a terminal a CSI measurement report request, wherein the CSI measurement report request is used to indicate a measurement resource of a CSI measurement configuration; a receiving module, configured to receive a CSI measurement report sent by a terminal, the CSI measurement report includes configuration information for antenna switching; and a configuration A module configured to change the antenna switching configuration of the terminal based on the CSI measurement report.
  • Embodiments of the fifth aspect of the present disclosure provide a communication device, including: a transceiver; a memory; and a processor, respectively connected to the transceiver and the memory, and configured to execute computer-executable instructions on the memory,
  • the transceiver is controlled to transmit and receive wireless signals, and the method for switching the antenna switching configuration described in the embodiment of the first aspect or the embodiment of the second aspect can be implemented.
  • Embodiments of the sixth aspect of the present disclosure provide a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the above-mentioned first aspect embodiment, Or the method for switching the antenna switching configuration described in the embodiment of the second aspect.
  • the method and device for switching the antenna switching configuration provided by the embodiments of the present disclosure perform the switching of the antenna switching configuration according to the CSI measurement report including at least one CQI reported by the terminal side. Therefore, the method for switching the antenna switching configuration of the present application
  • the antenna configuration supported by the terminal side is considered, so as to adapt to the terminal and service requirements faster and more flexibly to support the switching of the antenna configuration.
  • FIG. 1 is a flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure
  • FIG. 4 is a flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure
  • FIG. 5 is a flowchart of another method for switching antenna switching configurations according to an embodiment of the present disclosure.
  • FIG. 6 is a flowchart of another method for switching antenna switching configurations according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a switching device with an antenna switching configuration according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a switching device with an antenna switching configuration according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • the techniques described herein are not limited to 5th-generation (5G) and later evolved communication systems, and not limited to LTE/LTE-advanced (LTE-Advanced, LTE-A) systems, and can also be used in various wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access ( Orthogonal Frequency Division Multiple Access, OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA) and other systems.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • the terminal provided by the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook or a Personal Digital Assistant (PDA), a Mobile Internet Device (Mobile Internet Device) , MID), wearable device (Wearable Device) or in-vehicle equipment, etc.
  • UMPC Ultra-Mobile Personal Computer
  • PDA Personal Digital Assistant
  • Mobile Internet Device Mobile Internet Device
  • MID wearable device
  • Wi-vehicle equipment etc.
  • the current antenna configuration can be implemented through radio resource control (Radio Resource Control, RRC) reconfiguration or bandwidth part (Bandwidth Part, BWP) switching.
  • RRC Radio Resource Control
  • BWP bandwidth part
  • this handover is mainly implemented by rescheduling on the network side through service changes and cannot be triggered according to the situation on the terminal side. Therefore, the current antenna configuration cannot adapt to the terminal and service requirements faster and more flexibly to support switching of the antenna configuration.
  • the number of antennas may be increased so that the terminal can support a maximum of 6 antennas or 8 antennas. For a terminal that supports a larger number of antennas, the terminal can support more different antenna configurations. Therefore, the current antenna configuration method is more difficult to meet the switching requirements of the antenna switching configuration of such a terminal.
  • the present disclosure provides a method and device for switching the antenna switching configuration.
  • the switching of the antenna switching configuration is performed according to the CSI measurement report including at least one CQI reported by the terminal side. Therefore, the method for switching the antenna switching configuration of the present application Considering the antenna configuration supported by the terminal side, it can adapt to the terminal and service requirements faster and more flexibly to support the switching of the antenna switching configuration.
  • FIG. 1 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is executed by the terminal.
  • the method for switching the antenna switching configuration includes the following steps:
  • S101 Receive a channel state information CSI measurement reporting request related to switching of the antenna switching configuration, where the CSI measurement reporting request is used to indicate measurement resources of the CSI measurement configuration.
  • the terminal may receive a channel state information (Channel State information, CSI) measurement reporting request, and the CSI measurement reporting request is related to the switching of the antenna switching configuration, that is, the CSI measurement reporting request is configured for implementing antenna switching issued by the switch.
  • CSI Channel State information
  • the network device may send a CSI measurement report request according to the switching requirement of the antenna switching configuration, so as to obtain relevant information from the terminal for performing the switching of the antenna switching configuration.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • S102 perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching.
  • the terminal may perform CSI measurement in response to the CSI measurement reporting request to obtain a CSI measurement report including configuration information of antenna switching.
  • the configuration information of antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information of antenna switching includes at least one set of CQI and transmission rank indication (Rank Indication, RI), that is, including CQ at the same time and RI, for example, one CQI and one RI may form a set of CQI and RI (also denoted as CQI/RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • the CSI measurement report obtained by the terminal includes at least one CQI, or includes at least one set of CQI/RI.
  • the terminal sends the CSI measurement report to the network device, and the network device may perform switching of the antenna switching configuration according to at least one CQI or at least one group of CQI/RI included in the CSI measurement report.
  • the network device may be a base station, and the base station may include a plurality of cells providing services for the terminal device.
  • the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the terminal reports the obtained CSI measurement report to the network device, and the network device switches the antenna switching configuration after obtaining the CSI measurement report.
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the terminal after receiving the CSI measurement report request, the terminal reports the CSI measurement report including the configuration information of the antenna switching to the network device, so that the network device can perform the switching of the antenna switching configuration based on the CSI measurement report Therefore, in the antenna switching configuration switching method of the embodiment of the present disclosure, the antenna configuration supported by the terminal side is considered, so that the terminal and service requirements can be adapted to support the switching of the antenna switching configuration faster and more flexibly.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the network device can fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • FIG. 2 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is executed by the terminal.
  • the method for switching the antenna switching configuration includes the following steps:
  • S201 Receive a channel state information CSI measurement reporting request related to switching of the antenna switching configuration, where the CSI measurement reporting request is used to indicate measurement resources of the CSI measurement configuration.
  • the terminal may receive a CSI measurement reporting request, and the CSI measurement reporting request is related to the switching of the antenna switching configuration, that is, the CSI measurement reporting request is sent to realize the switching of the antenna switching configuration.
  • the network device may send a CSI measurement report request according to the switching requirement of the antenna switching configuration, so as to obtain relevant information from the terminal for performing the switching of the antenna switching configuration.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • CSI measurement is performed to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching.
  • the terminal may perform CSI measurement in response to the CSI measurement reporting request to obtain a CSI measurement report including configuration information of antenna switching.
  • the configuration information of antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information of antenna switching includes at least one set of CQI and transmission rank indication (Rank Indication, RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • the CSI measurement report obtained by the terminal includes at least one CQI, or includes at least one set of CQI/RI.
  • the terminal sends the CSI measurement report to the network device, and the network device may perform switching of the antenna switching configuration according to at least one CQI or at least one group of CQI/RI included in the CSI measurement report.
  • TRP Transmission receive point
  • CSI measurement calculation different ways.
  • performing CSI measurement to obtain a CSI measurement report may be implemented through the following steps.
  • S2021 for a network device supporting a single transmission and reception point TRP, based on the channel measurement resource corresponding to the single TRP, perform CSI measurement calculation to obtain the configuration information of the antenna switching to obtain a CSI measurement report.
  • one or more non-zero power channel state information reference signals NZP CSI-RS corresponding to the single TRP may be used as channel measurement resources, and perform CSI measurement and calculation to obtain configuration information for antenna switching.
  • the one or more NZP CSI-RSs include at least the most recently received NZP CSI-RS, and optionally, also include the previously received NZP CSI-RS.
  • non-zero-power channel state information reference signal non-zero-power Channel State Information Reference Signal, NZP CSI-RS
  • NZP CSI-RS non-zero-power Channel State Information Reference Signal
  • the terminal may only use the most recently received data from the single TRP.
  • the NZP CSI-RS performs CSI measurement and calculation to obtain the configuration information of antenna switching.
  • the configuration information for antenna switching is obtained by performing CSI measurement calculation using the most recently received NZP CSI-RS corresponding to the single TRP transmission and several previously received NZP CSI-RSs.
  • the terminal can use the most recently received NZP from the single TRP.
  • the CSI-RS and the previously received NZP CSI-RS perform CSI measurement and calculation to obtain the configuration information of the antenna switching. Smoother CSI measurements can be achieved by using the most recently received as well as previously received NZP CSI-RS.
  • the configuration information for antenna switching can be calculated as follows:
  • S20211 Calculate the configuration information of the antenna switching according to the number of multiple receiving antennas of the antenna switching capability supported by the terminal and the calculation rule.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas and the calculation rule of the antenna switching capability supported by the terminal.
  • the terminal's antenna switching capability can indicate the antenna configuration switching modes that the terminal can support, that is, it can switch between multiple antenna configurations supported by the terminal's antenna switching capability.
  • the terminal's antenna switching capability indicates 1T1R_2T2R_4T4R, it indicates that the terminal supports the following Antenna configuration switching: switch from 1 transmit antenna and 1 receive antenna to 2 transmit antennas and 2 receive antennas, from 2 transmit antennas and 2 receive antennas to 4 transmit antennas and 4 receive antennas, from 1 transmit antenna to 1 switch from 4 receive antennas to 4 transmit antennas 4 receive antennas, from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, from 4 transmit antennas and 4 receive antennas to 1 transmit antenna 1 2 receive antennas, switch from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna, etc.
  • the antenna switching capability of the terminal can also indicate the antenna configuration fallback mode, that is, the antenna configuration with high capability supported by the antenna switching capability of the terminal can be changed to the antenna configuration with lower capability. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R_4T4R, then Indicates that the terminal supports the following antenna configuration fallbacks: fallback from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, and from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna .
  • the calculation rule may be pre-defined jointly by the network device and the terminal or indicated to the terminal by the network device through high-level signaling configuration.
  • the calculation rule may be configured by the network device via signaling such as radio resource control (Radio Resource Control, RRC) signaling, media access layer control element (Media Access Control Control Element, MAC CE) and other signaling.
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the calculation rule may include one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; Not more than the number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, respectively calculate the configuration information of antenna switching corresponding to different numbers of receiving antennas; The number of one or more receiving antennas of the antenna switching capability supported by the terminal, and the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the pre-configured or designated one or more antenna switching capabilities supported by the terminal For the number of receiving antennas, the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas with the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the configuration information of antenna switching corresponding to different receiving antenna numbers is calculated respectively.
  • the configuration information of antenna switching corresponding to different receiving antenna numbers is calculated respectively. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R and 1T1R_2T2R_4T4R, for the antenna switching capability 1T1R_2T2R_4T4R, a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4, and for the antenna switching capability 1T1R_2T2R, the number of receiving antennas 1, 2, and 4 is calculated. 2 Calculate the configuration information for a group of antenna switching.
  • the configurations of antenna switching corresponding to different numbers of receiving antennas are calculated respectively. information.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • a set of antenna switching configuration information is calculated according to the number of receiving antennas 2 and 4.
  • the configuration information of the antenna switching is calculated.
  • the configuration information of the antenna switching is calculated according to the number of receiving antennas 4.
  • the terminal reports the obtained CSI measurement report to the network device, and the network device switches the antenna switching configuration after obtaining the CSI measurement report.
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the terminal after receiving a CSI measurement report request, for a network device supporting a single TRP, uses the channel resources corresponding to the single TRP to perform CSI measurement calculation to generate a CSI measurement report, and the network device can generate a CSI measurement report based on the CSI
  • the measurement report is used to perform the switching of the antenna switching configuration, so it can adapt to the terminal and service requirements faster and more flexibly to support the switching of the antenna switching configuration.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the network device can fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • FIG. 3 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is executed by the terminal.
  • the method for switching the antenna switching configuration includes the following steps:
  • S301 Receive a channel state information CSI measurement reporting request related to switching of the antenna switching configuration, where the CSI measurement reporting request is used to indicate measurement resources of the CSI measurement configuration.
  • the terminal may receive a CSI measurement reporting request, and the CSI measurement reporting request is related to the switching of the antenna switching configuration, that is, the CSI measurement reporting request is sent to realize the switching of the antenna switching configuration.
  • the network device may send a CSI measurement report request according to the switching requirement of the antenna switching configuration, so as to obtain relevant information from the terminal for performing the switching of the antenna switching configuration.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • S302 perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching.
  • the terminal may perform CSI measurement in response to the CSI measurement reporting request to obtain a CSI measurement report including configuration information of antenna switching.
  • the configuration information for antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information for antenna switching includes at least one set of CQ and transmission rank indication (Rank Indication, RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • the CSI measurement report obtained by the terminal includes at least one CQI, or includes at least one set of CQI/RI.
  • the terminal sends the CSI measurement report to the network device, and the network device may perform switching of the antenna switching configuration according to at least one CQI or at least one group of CQI/RI included in the CSI measurement report.
  • TRP Transmission receive point
  • CSI measurement calculation different ways.
  • performing CSI measurement to obtain a CSI measurement report may be implemented through the following steps.
  • S3021 for a network device supporting multiple transmission reception point TRPs, determine multiple TRPs participating in joint transmission based on a pre-defined multiple TRP transmission assumption or a multiple TRP transmission mode configured by the network device through signaling.
  • not all multiple TRPs participate in joint transmission are not all multiple TRPs participate in joint transmission.
  • the multiple TRPs participating in joint transmission can be determined according to the assumption of multi-TRP transmission, or the multiple TRPs participating in joint transmission can be determined according to the multi-TRP transmission mode configured by the network device through signaling. Multiple TRPs transmitted.
  • TRP 1, TRP 2, TRP 3, and TRP 4 there are multiple TRPs: TRP 1, TRP 2, TRP 3, and TRP 4, and the multiple-TRP transmission mode configured by the network device through signaling is realized by combining TRP 1, TRP 2, and TRP 4, then you can It is determined that the multiple TRPs participating in the joint transmission are TRP 1, TRP 2 and TRP 4.
  • the multi-TRP transmission hypothesis may include one of the following: a multi-TRP transmission mode of the most recently scheduled downlink channel; and a pre-defined multi-TRP transmission mode of the downlink channel.
  • multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the most recently scheduled downlink channel. If the multi-TRP transmission mode of the downlink channel is realized by combining TRP 1 and TRP 2, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the recently scheduled downlink channel is realized by combining TRP 1 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 3. In other embodiments, multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the predefined downlink channel.
  • the multi-TRP transmission mode of the predefined downlink channel is implemented in combination with TRP 1 and TRP 2, Then it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the predefined downlink channel is realized by combining TRP 2 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 2 and TRP 3.
  • the above downlink channel may be a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH or other downlink channels.
  • S3022 respectively perform CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission to obtain the configuration information of the antenna switching corresponding to each TRP participating in the joint transmission; and/or based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission
  • the configuration information of the antenna switching is obtained by performing joint CSI measurement and calculation.
  • CSI measurement can be performed in the following manner:
  • Manner 1 For each TRP participating in joint transmission, based on channel measurement resources corresponding to each TRP, perform CSI measurement and calculation respectively to obtain configuration information of antenna switching corresponding to each TRP participating in joint transmission.
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, so as to calculate and obtain the configuration information of antenna switching.
  • the one or more NZP CSI-RSs include at least the most recently received NZP CSI-RS, and optionally, also include the previously received NZP CSI-RS.
  • TRP 2 use one or more non-zero power channel state information reference signals NZP CSI-RS corresponding to TRP 2 as channel measurement resources, and perform CSI measurement calculation to obtain the configuration information of antenna switching corresponding to TRP 2.
  • NZP CSI-RS non-zero power channel state information reference signals
  • Manner 2 Based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission, perform joint CSI measurement and calculation to obtain the configuration information of the antenna switching.
  • joint CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and TRP 2 to calculate and obtain the configuration information of antenna switching.
  • Manner 3 CSI measurement calculation is performed in combination with Manner 1 and Manner 2.
  • CSI measurement is performed separately based on channel measurement resources corresponding to each TRP, and joint CSI measurement is performed based on channel measurement resources corresponding to multiple TRPs participating in joint transmission, so as to obtain the configuration information of antenna switching.
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, and based on the corresponding channel measurement resources of TRP 1 and TRP 2.
  • the channel measurement resources are used for joint CSI measurement to obtain configuration information for antenna switching.
  • the configuration information for antenna switching can be calculated as follows:
  • S30221 Calculate the configuration information of the antenna switching according to the number of multiple receiving antennas of the antenna switching capability supported by the terminal and the calculation rule.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas and the calculation rule of the antenna switching capability supported by the terminal.
  • the terminal's antenna switching capability can indicate the antenna configuration switching modes that the terminal can support, that is, it can switch between multiple antenna configurations supported by the terminal's antenna switching capability.
  • the terminal's antenna switching capability indicates 1T1R_2T2R_4T4R, it indicates that the terminal supports the following Antenna configuration switching: switch from 1 transmit antenna and 1 receive antenna to 2 transmit antennas and 2 receive antennas, from 2 transmit antennas and 2 receive antennas to 4 transmit antennas and 4 receive antennas, from 1 transmit antenna to 1 switch from 4 receive antennas to 4 transmit antennas 4 receive antennas, from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, from 4 transmit antennas and 4 receive antennas to 1 transmit antenna 1 2 receive antennas, switch from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna, etc.
  • the antenna switching capability of the terminal can also indicate the antenna configuration fallback mode, that is, the antenna configuration with high capability supported by the antenna switching capability of the terminal can be changed to the antenna configuration with lower capability. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R_4T4R, then Indicates that the terminal supports the following antenna configuration fallbacks: fallback from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, and from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna .
  • the calculation rule may be pre-defined jointly by the network device and the terminal or indicated to the terminal by the network device through high-level signaling configuration.
  • the calculation rule may be configured by the network device via signaling such as radio resource control (Radio Resource Control, RRC) signaling, media access layer control element (Media Access Control Control Element, MAC CE) and other signaling.
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the calculation rule may include one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; Not more than the number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, respectively calculate the configuration information of antenna switching corresponding to different numbers of receiving antennas; The number of one or more receiving antennas of the antenna switching capability supported by the terminal, and the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the pre-configured or designated one or more antenna switching capabilities supported by the terminal For the number of receiving antennas, the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas with the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the configuration information of antenna switching corresponding to different receiving antenna numbers is calculated respectively.
  • the configuration information of antenna switching is calculated respectively according to a group of different receiving antenna numbers corresponding to different antenna switching capabilities. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R and 1T1R_2T2R_4T4R, for the antenna switching capability 1T1R_2T2R_4T4R, a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4, and for the antenna switching capability 1T1R_2T2R, the number of receiving antennas 1, 2, and 4 is calculated. 2 Calculate the configuration information for a group of antenna switching.
  • the configurations of antenna switching corresponding to different numbers of receiving antennas are calculated respectively. information.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • a set of antenna switching configuration information is calculated according to the number of receiving antennas 2 and 4.
  • the configuration information of the antenna switching is calculated.
  • the configuration information of the antenna switching is calculated according to the number of receiving antennas 4.
  • S3023 Obtain a CSI measurement report according to the configuration information of the antenna switching.
  • a CSI measurement report can be obtained according to the configuration information of antenna switching obtained by calculation.
  • the terminal reports the obtained CSI measurement report to the network device, and the network device performs switching of the antenna switching configuration after obtaining the CSI measurement report.
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the terminal after the terminal receives the CSI measurement report request, for the network device that supports multiple TRPs, it can perform CSI measurement calculation in a variety of different ways to generate the CSI measurement report, and the network device can generate the CSI measurement report based on the CSI measurement report.
  • the network device can adapt to the terminal and service requirements faster and more flexibly to support the switching of the antenna configuration.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the network device can fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • FIG. 4 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is executed by the terminal.
  • the method for switching the antenna switching configuration includes the following steps:
  • S401 Receive a channel state information CSI measurement reporting request related to switching of the antenna switching configuration, where the CSI measurement reporting request is used to indicate measurement resources of the CSI measurement configuration.
  • the terminal may receive a CSI measurement reporting request, and the CSI measurement reporting request is related to the switching of the antenna switching configuration, that is, the CSI measurement reporting request is sent to realize the switching of the antenna switching configuration.
  • the network device may send a CSI measurement report request according to the switching requirement of the antenna switching configuration, so as to obtain relevant information from the terminal for performing the switching of the antenna switching configuration.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • CSI measurement is performed to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching.
  • the terminal may perform CSI measurement in response to the CSI measurement reporting request to obtain a CSI measurement report including configuration information of antenna switching.
  • the configuration information of antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information of antenna switching includes at least one set of CQI and transmission rank indication (Rank Indication, RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • TRP Transmission receive point
  • CSI measurement calculation different ways.
  • performing CSI measurement to obtain a CSI measurement report may be implemented through the following steps.
  • S4021 for a network device that supports multiple transmission reception point TRPs, determine multiple TRPs participating in joint transmission based on the assumption of multiple TRP transmission.
  • the multi-TRP transmission hypothesis may include one of the following: a multi-TRP transmission mode of the most recently scheduled downlink channel; and a pre-defined multi-TRP transmission mode of the downlink channel.
  • the above downlink channel may be a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH or other downlink channels.
  • S4022 perform CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission, respectively, to obtain configuration information of antenna switching corresponding to each TRP participating in the joint transmission; and/or based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission
  • the configuration information of the antenna switching is obtained by performing joint CSI measurement and calculation.
  • the CSI measurement calculation can be performed in the following manner:
  • Manner 2 Based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission, perform joint CSI measurement and calculation to obtain the configuration information of the antenna switching.
  • Manner 3 CSI measurement calculation is performed in combination with Manner 1 and Manner 2.
  • S4023 Obtain a CSI measurement report according to the configuration information of the antenna switching.
  • a CSI measurement report can be obtained according to the configuration information of antenna switching obtained by calculation.
  • the CSI measurement report can be obtained according to any of the following steps:
  • Receive the signaling configuration about the reporting method and include, according to the signaling configuration, the configuration information of antenna switching corresponding to each TRP participating in the joint transmission and/or the configuration information of antenna switching calculated by joint CSI measurement in the the CSI measurement report described above.
  • the terminal decides how to generate the CSI measurement report according to the signaling configuration of the network device.
  • the signaling configuration of the network device can instruct the terminal to report the CSI measurement report as follows:
  • the terminal may report the configuration information of antenna switching corresponding to each TRP participating in the joint transmission.
  • the terminal after the terminal performs CSI measurement and calculation for TRP 1 and TRP 2 participating in joint transmission respectively, and obtains the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching corresponding to TRP 2, the terminal can calculate the calculated The configuration information of all antenna switching that is output is included in the CSI measurement report and reported to the network device, that is, the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching corresponding to TRP 2 are reported to the network device.
  • the terminal may report the configuration information of antenna switching obtained by performing joint CSI measurement calculation for multiple TRPs participating in joint transmission.
  • the terminal may include the calculated configuration information of antenna switching in the CSI measurement report and report it to the network equipment.
  • the terminal may report the configuration information of antenna switching corresponding to each TRP participating in joint transmission and the configuration information of antenna switching obtained by performing joint CSI measurement and calculation for multiple TRPs participating in joint transmission.
  • the terminal may use the configuration information of antenna switching corresponding to TRP 1, the configuration information of antenna switching corresponding to TRP 2, and the configuration information of antenna switching obtained by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission.
  • the information is included in the CSI measurement report and reported to the network device.
  • S40232 According to the predetermined reporting method of the terminal, include the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or the configuration information of antenna switching calculated by joint CSI measurement in the CSI measurement report for reporting .
  • the terminal decides how to generate a CSI measurement report according to a predetermined reporting manner.
  • the predetermined reporting method may instruct the terminal to report the CSI measurement report as follows:
  • the terminal may report the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission.
  • the terminal can obtain the configuration information from the calculated Select one or more of the configuration information of all antenna switching that are output to include in the CSI measurement report and report it to the network device.
  • the terminal may select part of the antenna switching configuration to include reporting to the network device in the CSI measurement report, for example, reporting the configuration information of antenna switching corresponding to TRP 1 to the network device.
  • the terminal may select all antenna switching configuration information to include in the CSI measurement report and report it to the network device, for example, reporting the antenna switching configuration information corresponding to TRP 1 and the antenna switching configuration information corresponding to TRP 2 to network equipment.
  • the terminal may report the configuration information of antenna switching obtained by performing joint CSI measurement calculation for multiple TRPs participating in joint transmission.
  • the terminal may include the calculated configuration information of antenna switching in the CSI measurement report and report it to the network equipment.
  • the terminal may report the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and the configuration information of antenna switching obtained by performing joint CSI measurement on multiple TRPs participating in joint transmission.
  • the terminal may use the configuration information of antenna switching corresponding to TRP 1, the configuration information of antenna switching corresponding to TRP 2, and the configuration information of antenna switching obtained by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission.
  • the information is included in the CSI measurement report and reported to the network device.
  • the terminal may include the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching calculated by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission in the CSI measurement report and report it to the network device. .
  • the terminal reports the obtained CSI measurement report to the network device, and the network device switches the antenna switching configuration after obtaining the CSI measurement report.
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the terminal after the terminal receives the CSI measurement report request, for the network device that supports multiple TRPs, it can perform CSI measurement calculation in a variety of different ways to generate the CSI measurement report, and the network device can generate the CSI measurement report based on the CSI measurement report.
  • the network device can adapt to the terminal and service requirements faster and more flexibly to support the switching of the antenna configuration.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the network device can fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • FIG. 5 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is performed by a network device, where the network device may be a base station, and the base station may include a plurality of cells providing services for the terminal device.
  • the base station may also be called an access point, or may be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or other names.
  • the switching method of the antenna switching configuration includes the following steps:
  • S501 Send a channel state information CSI measurement reporting request related to switching of the antenna switching configuration to a terminal, where the CSI measurement reporting request is used to indicate a measurement resource of the CSI measurement configuration.
  • the network device when it needs to perform the switching of the antenna switching configuration, it can send a (Channel State information, CSI) measurement reporting request according to the switching requirement of the antenna switching configuration, that is, the CSI measurement reporting request is to implement the antenna switching.
  • the configuration switching is sent to obtain relevant information from the terminal for performing antenna switching configuration switching.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • S502 Receive a CSI measurement report sent by the terminal, where the CSI measurement report includes configuration information of antenna switching.
  • the network device receives from the terminal a CSI measurement report fed back by the terminal in response to the CSI measurement report request.
  • the terminal may perform CSI measurement in response to the CSI measurement report request to obtain a CSI measurement report including configuration information of antenna switching, and feed back the CSI measurement report to the network device.
  • the configuration information of antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information of antenna switching includes at least one set of CQI and transmission rank indication (Rank Indication, RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • the CSI measurement report obtained by the terminal may include at least one CQI, or at least one group of CQI/RIs.
  • the network device may perform execution according to at least one CQI or at least one group of CQI/RI included in the CSI measurement report. Switching of the antenna switching configuration.
  • TRP Transmission receive point
  • CSI measurement calculation different ways.
  • the CSI measurement report may be obtained according to the configuration information of antenna switching calculated by performing CSI measurement on the channel measurement resource corresponding to the TRP.
  • the configuration information for antenna switching may be to use one or more non-zero power channel state information reference signals NZP corresponding to the single TRP
  • the CSI-RS is calculated by performing CSI measurement as a channel measurement resource.
  • the one or more NZP CSI-RSs include at least the most recently received NZP CSI-RS, and optionally, also include the previously received NZP CSI-RS.
  • non-zero-power channel state information reference signal non-zero-power Channel State Information Reference Signal, NZP CSI-RS
  • NZP CSI-RS non-zero-power Channel State Information Reference Signal
  • the terminal may only use the most recently received data from the single TRP.
  • the NZP CSI-RS performs CSI measurement and calculation to obtain the configuration information of antenna switching.
  • the configuration information for antenna switching is obtained by performing CSI measurement calculation using the most recently received NZP CSI-RS corresponding to the single TRP transmission and several previously received NZP CSI-RSs.
  • the terminal can use the most recently received NZP from the single TRP.
  • the CSI-RS and the previously received NZP CSI-RS perform CSI measurement and calculation to obtain the configuration information of the antenna switching. Smoother CSI measurements can be achieved by using the most recently received as well as previously received NZP CSI-RS.
  • the CSI measurement report may be generated according to the configuration information of antenna switching obtained by the following calculation: CSI measurement is calculated based on the channel measurement resources corresponding to each TRP participating in the joint transmission. configuration information of the antenna switching corresponding to each TRP participating in the joint transmission; and/or the configuration information of the antenna switching calculated by performing joint CSI measurement based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission.
  • Each TRP participating in the joint transmission is determined by a predefined multi-TRP transmission assumption or a multi-TRP transmission mode configured by the network device through signaling.
  • the network device when the network device supports multiple TRPs, not all multiple TRPs participate in joint transmission, and the multiple TRPs participating in joint transmission may be determined according to the assumption of multiple TRP transmission or may be configured according to the network device through signaling.
  • the TRP transmission mode determines the multiple TRPs participating in the joint transmission.
  • TRP 1, TRP 2, TRP 3, and TRP 4 there are multiple TRPs: TRP 1, TRP 2, TRP 3, and TRP 4, and the multiple-TRP transmission mode configured by the network device through signaling is realized by combining TRP 1, TRP 2, and TRP 4, then you can It is determined that the multiple TRPs participating in the joint transmission are TRP 1, TRP 2 and TRP 4.
  • the multi-TRP transmission hypothesis may include one of: a multi-TRP transmission mode for the most recently scheduled downlink channel; and a multi-TRP transmission mode for a predefined downlink channel.
  • multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the most recently scheduled downlink channel. If the multi-TRP transmission mode of the downlink channel is realized by combining TRP 1 and TRP 2, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the recently scheduled downlink channel is realized by combining TRP 1 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 3. In other embodiments, multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the predefined downlink channel.
  • the multi-TRP transmission mode of the predefined downlink channel is realized by combining TRP 1 and TRP 2, Then it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the predefined downlink channel is realized by combining TRP 2 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 2 and TRP 3.
  • the above downlink channel may be a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH or other downlink channels.
  • the configuration information of antenna switching corresponding to each TRP participating in the joint transmission may be obtained by performing CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission; and/or based on the channel measurement resources participating in the joint transmission.
  • the configuration information of the antenna switching is obtained by performing joint CSI measurement and calculation on the channel measurement resources corresponding to the transmitted multiple TRPs.
  • CSI measurements can be performed as follows:
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, so as to calculate and obtain the configuration information of antenna switching.
  • the one or more NZP CSI-RSs include at least the most recently received NZP CSI-RS, and optionally, also include the previously received NZP CSI-RS.
  • TRP 2 use one or more non-zero power channel state information reference signals NZP CSI-RS corresponding to TRP 2 as channel measurement resources, and perform CSI measurement calculation to obtain the configuration information of antenna switching corresponding to TRP 2.
  • NZP CSI-RS non-zero power channel state information reference signals
  • Manner 2 Based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission, perform joint CSI measurement and calculation to obtain the configuration information of the antenna switching.
  • joint CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and TRP 2 to calculate and obtain the configuration information of antenna switching.
  • Manner 3 CSI measurement calculation is performed in combination with Manner 1 and Manner 2.
  • CSI measurement is performed separately based on channel measurement resources corresponding to each TRP, and joint CSI measurement is performed based on channel measurement resources corresponding to multiple TRPs participating in joint transmission, so as to obtain the configuration information of antenna switching.
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, and based on the corresponding channel measurement resources of TRP 1 and TRP 2.
  • the channel measurement resources are used for joint CSI measurement to obtain configuration information for antenna switching.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas and the calculation rule of the antenna switching capability supported by the terminal.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas and the calculation rule of the antenna switching capability supported by the terminal.
  • the terminal's antenna switching capability can indicate the antenna configuration switching modes that the terminal can support, that is, it can switch between multiple antenna configurations supported by the terminal's antenna switching capability.
  • the terminal's antenna switching capability indicates 1T1R_2T2R_4T4R, it indicates that the terminal supports the following Antenna configuration switching: switch from 1 transmit antenna and 1 receive antenna to 2 transmit antennas and 2 receive antennas, from 2 transmit antennas and 2 receive antennas to 4 transmit antennas and 4 receive antennas, from 1 transmit antenna to 1 switch from 4 receive antennas to 4 transmit antennas 4 receive antennas, from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, from 4 transmit antennas and 4 receive antennas to 1 transmit antenna 1 2 receive antennas, switch from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna, etc.
  • the antenna switching capability of the terminal can also indicate the antenna configuration fallback mode, that is, the antenna configuration with high capability supported by the antenna switching capability of the terminal can be changed to the antenna configuration with lower capability. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R_4T4R, then Indicates that the terminal supports the following antenna configuration fallbacks: fallback from 4 transmit antennas and 4 receive antennas to 2 transmit antennas and 2 receive antennas, and from 2 transmit antennas and 2 receive antennas to 1 transmit antenna and 1 receive antenna .
  • the calculation rule may be pre-defined jointly by the network device and the terminal or indicated to the terminal by the network device through high-level signaling configuration.
  • the calculation rule may be configured by the network device via signaling such as radio resource control (Radio Resource Control, RRC) signaling, media access layer control element (Media Access Control Control Element, MAC CE) and other signaling.
  • RRC Radio Resource Control
  • MAC CE Media Access Control Control Element
  • the calculation rule may include one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; Not more than the number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, respectively calculate the configuration information of antenna switching corresponding to different numbers of receiving antennas; The number of one or more receiving antennas of the antenna switching capability supported by the terminal, and the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the pre-configured or designated one or more antenna switching capabilities supported by the terminal For the number of receiving antennas, the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas with the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the configuration information of antenna switching corresponding to different receiving antenna numbers is calculated respectively.
  • the configuration information of antenna switching is calculated respectively according to a group of different receiving antenna numbers corresponding to different antenna switching capabilities. For example, if the antenna switching capability of the terminal indicates 1T1R_2T2R and 1T1R_2T2R_4T4R, for the antenna switching capability 1T1R_2T2R_4T4R, a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4, and for the antenna switching capability 1T1R_2T2R, the number of receiving antennas 1, 2, and 4 is calculated. 2 Calculate the configuration information for a group of antenna switching.
  • the configurations of antenna switching corresponding to different numbers of receiving antennas are calculated respectively. information.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • a group of antenna switching configuration information is calculated according to the number of receiving antennas 1, 2, and 4.
  • the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively.
  • the configuration information of a group of antenna switching is calculated according to the number of receiving antennas 1 and 2.
  • a set of antenna switching configuration information is calculated according to the number of receiving antennas 2 and 4.
  • the configuration information of the antenna switching is calculated.
  • the configuration information of the antenna switching is calculated according to the number of receiving antennas 4.
  • the CSI measurement report may include configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or configuration information of antenna switching obtained by joint CSI measurement.
  • the terminal determines how to generate a CSI measurement report according to a predetermined reporting method.
  • the CSI measurement report may include configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or joint CSI measurement Calculated configuration information for antenna switching.
  • the predetermined reporting method may instruct the terminal to report the CSI measurement report as follows:
  • the terminal may report the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission.
  • the terminal can obtain the configuration information from the calculated Select one or more of the configuration information of all antenna switching that are output to include in the CSI measurement report and report it to the network device.
  • the terminal may select part of the antenna switching configuration to include reporting to the network device in the CSI measurement report, for example, reporting the configuration information of antenna switching corresponding to TRP 1 to the network device.
  • the terminal may select all antenna switching configuration information to include in the CSI measurement report and report it to the network device, for example, reporting the antenna switching configuration information corresponding to TRP 1 and the antenna switching configuration information corresponding to TRP 2 to network equipment.
  • the terminal may report the configuration information of antenna switching obtained by performing joint CSI measurement calculation for multiple TRPs participating in joint transmission.
  • the terminal may include the calculated configuration information of antenna switching in the CSI measurement report and report it to the network equipment.
  • the terminal may upload the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and the configuration information of antenna switching obtained by performing joint CSI measurement on multiple TRPs participating in joint transmission.
  • the terminal may use the configuration information of antenna switching corresponding to TRP 1, the configuration information of antenna switching corresponding to TRP 2, and the configuration information of antenna switching obtained by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission.
  • the information is included in the CSI measurement report and reported to the network device.
  • the terminal may include the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching calculated by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission in the CSI measurement report and report it to the network device. .
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the network device sends a CSI measurement report request to the terminal when switching of the antenna switching configuration is required to obtain a CSI measurement report including the configuration information of the antenna switching from the terminal, and performs the antenna switching according to the CSI measurement report Configuration switching, therefore, in the antenna switching configuration switching method of the embodiment of the present disclosure, the antenna configuration supported by the terminal side is considered, so that the terminal and service requirements can be adapted to support antenna configuration switching faster and more flexibly.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the device may fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • FIG. 6 shows a schematic flowchart of a method for switching an antenna switching configuration according to an embodiment of the present disclosure.
  • the method is performed by a network device.
  • the method for switching the antenna switching configuration includes the following steps:
  • the network device when it needs to perform the switching of the antenna switching configuration, it can send a (Channel State information, CSI) measurement reporting request according to the switching requirement of the antenna switching configuration, that is, the CSI measurement reporting request is to implement the antenna switching.
  • the configuration switching is sent to obtain relevant information from the terminal for performing antenna switching configuration switching.
  • the CSI measurement reporting request indicates measurement resources configured for CSI measurement, including at least channel measurement resources.
  • the CSI measurement reporting request may further include interference measurement resources.
  • the reporting method includes: including the configuration information of all antenna switching calculated by CSI measurement and/or the configuration information of antenna switching calculated by joint CSI measurement in the CSI measurement report for reporting.
  • TRP Transmission receive point
  • the CSI measurement report can be obtained according to the configuration information of antenna switching obtained by the following calculation: CSI measurement is calculated based on the channel measurement resources corresponding to each TRP participating in the joint transmission. configuration information of the antenna switching corresponding to each TRP participating in the joint transmission; and/or the configuration information of the antenna switching calculated by performing joint CSI measurement based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission.
  • Each TRP participating in the joint transmission is determined by a predefined multi-TRP transmission assumption or a multi-TRP transmission mode configured by the network device through signaling.
  • the network device supports multiple TRPs, not all multiple TRPs participate in joint transmission.
  • the multiple TRPs participating in joint transmission can be determined according to the multi-TRP transmission assumption, or the multiple TRPs participating in joint transmission can be determined according to the multi-TRP transmission mode configured by the network device through signaling. Multiple TRPs transmitted.
  • TRP 1, TRP 2, TRP 3, and TRP 4 there are multiple TRPs: TRP 1, TRP 2, TRP 3, and TRP 4, and the multiple-TRP transmission mode configured by the network device through signaling is realized by combining TRP 1, TRP 2, and TRP 4, then you can It is determined that the multiple TRPs participating in the joint transmission are TRP 1, TRP 2 and TRP 4.
  • the multi-TRP transmission hypothesis may include one of: a multi-TRP transmission mode for the most recently scheduled downlink channel; and a multi-TRP transmission mode for a predefined downlink channel.
  • multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the most recently scheduled downlink channel. If the multi-TRP transmission mode of the downlink channel is realized by combining TRP 1 and TRP 2, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the recently scheduled downlink channel is realized by combining TRP 1 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 3. In other embodiments, multiple TRPs participating in joint transmission may be determined according to the multi-TRP transmission mode of the predefined downlink channel.
  • the multi-TRP transmission mode of the predefined downlink channel is realized by combining TRP 1 and TRP 2, Then it can be determined that the multiple TRPs participating in the joint transmission are TRP 1 and TRP 2. If the multi-TRP transmission mode of the predefined downlink channel is realized by combining TRP 2 and TRP 3, it can be determined that the multiple TRPs participating in the joint transmission are TRP 2 and TRP 3.
  • the above downlink channel may be a physical downlink shared channel PDSCH, a physical downlink control channel PDCCH or other downlink channels.
  • the configuration information of antenna switching corresponding to each TRP participating in the joint transmission may be obtained by performing CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission; and/or based on the channel measurement resources participating in the joint transmission.
  • the configuration information of the antenna switching is obtained by performing joint CSI measurement and calculation on the channel measurement resources corresponding to the transmitted multiple TRPs.
  • CSI measurements can be performed as follows:
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, so as to calculate and obtain the configuration information of antenna switching.
  • the one or more NZP CSI-RSs include at least the most recently received NZP CSI-RS, and optionally, also include the previously received NZP CSI-RS.
  • TRP 2 use one or more non-zero power channel state information reference signals NZP CSI-RS corresponding to TRP 2 as channel measurement resources, and perform CSI measurement calculation to obtain the configuration information of antenna switching corresponding to TRP 2.
  • NZP CSI-RS non-zero power channel state information reference signals
  • Manner 2 Based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission, perform joint CSI measurement and calculation to obtain the configuration information of the antenna switching.
  • joint CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and TRP 2 to calculate and obtain the configuration information of antenna switching.
  • Manner 3 CSI measurement calculation is performed in combination with Manner 1 and Manner 2.
  • CSI measurement is performed separately based on channel measurement resources corresponding to each TRP, and joint CSI measurement is performed based on channel measurement resources corresponding to multiple TRPs participating in joint transmission, so as to obtain the configuration information of antenna switching.
  • CSI measurement is performed based on the channel measurement resources corresponding to TRP 1 and CSI measurement is performed based on the channel measurement resources corresponding to TRP 2, and based on the corresponding channel measurement resources of TRP 1 and TRP 2.
  • the channel measurement resources are used for joint CSI measurement to obtain configuration information for antenna switching.
  • the terminal can perform CSI measurement in various ways to calculate the configuration information of antenna switching, and correspondingly, there are also various ways to generate the configuration information based on the calculated antenna switching.
  • the CSI measurement report is reported.
  • the network device may instruct the terminal how to generate a CSI measurement report for reporting through signaling configuration.
  • the signaling configuration of the network device may instruct the terminal to report the CSI measurement report as follows:
  • the terminal may report the configuration information of antenna switching corresponding to each TRP participating in the joint transmission.
  • the terminal after the terminal performs CSI measurement and calculation for TRP 1 and TRP 2 participating in joint transmission respectively, and obtains the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching corresponding to TRP 2, the terminal can calculate the calculated The configuration information of all antenna switching that is output is included in the CSI measurement report and reported to the network device, that is, the configuration information of antenna switching corresponding to TRP 1 and the configuration information of antenna switching corresponding to TRP 2 are reported to the network device.
  • the terminal may report the configuration information of antenna switching obtained by performing joint CSI measurement calculation for multiple TRPs participating in joint transmission.
  • the terminal may include the calculated configuration information of antenna switching in the CSI measurement report and report it to the network equipment.
  • the terminal may report the configuration information of antenna switching corresponding to each TRP participating in joint transmission and the configuration information of antenna switching obtained by performing joint CSI measurement and calculation for multiple TRPs participating in joint transmission.
  • the terminal may use the configuration information of antenna switching corresponding to TRP 1, the configuration information of antenna switching corresponding to TRP 2, and the configuration information of antenna switching obtained by performing joint CSI measurement for TRP 1 and TRP 2 participating in joint transmission.
  • the information is included in the CSI measurement report and reported to the network device.
  • steps S601 and S602 may be performed in any order, for example, step S602 may be performed first, followed by S601; or steps S601 and S602 may be performed simultaneously.
  • S603 Receive a CSI measurement report fed back by the terminal in response to the CSI measurement report request, where the CSI measurement report includes configuration information of antenna switching.
  • the network device receives the CSI measurement report sent by the terminal from the terminal. After receiving the CSI measurement report request, the terminal may perform CSI measurement in response to the CSI measurement report request to obtain a CSI measurement report including configuration information of antenna switching, and feed back the CSI measurement report to the network device.
  • the configuration information of antenna switching includes at least one Channel Quality Indication (CQI) or the configuration information of antenna switching includes at least one set of CQI and transmission rank indication (Rank Indication, RI).
  • CQI Channel Quality Indication
  • RI transmission rank indication
  • the CSI measurement report obtained by the terminal may include at least one CQI, or at least one group of CQI/RIs.
  • the network device may perform execution according to at least one CQI or at least one group of CQI/RI included in the CSI measurement report. Switching of the antenna switching configuration.
  • the network device may change the antenna switching configuration of the terminal based on the antenna switching configuration information included in the CSI measurement report.
  • the network device sends a CSI measurement report request to the terminal when switching of the antenna switching configuration is required to obtain a CSI measurement report including the configuration information of the antenna switching from the terminal, and performs the antenna switching according to the CSI measurement report Configuration switching, therefore, in the antenna switching configuration switching method of the embodiment of the present disclosure, the antenna configuration supported by the terminal side is considered, so that the terminal and service requirements can be adapted to support antenna configuration switching faster and more flexibly.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which to switch.
  • the desired number of receive antennas represents the number of receive antennas the terminal expects to use
  • the desired number of transmit antennas represents the number of transmit antennas the terminal expects to use
  • the desired antenna switching configuration represents the antenna switching configuration the terminal expects to use.
  • the desired number of receive antennas, the desired number of transmit antennas, or the desired antenna switching configuration to switch to is typically the number of receive antennas, the number of transmit antennas, or the antenna switching configuration that results in better communication quality.
  • the terminal may obtain the desired number of receiving antennas m' according to the calculated CQI, and may obtain the desired number of transmitting antennas n' according to the RI calculation and/or the transmission requirement, and may further determine the desired antenna to switch to Switching configuration n'Tm'R (ie, n' transmit antennas m' receive antennas).
  • the terminal may include at least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired switching configuration n'Tm'R to the network device in the CSI measurement report, so that the network device can At least one of the desired number of receiving antennas m', the desired number of transmitting antennas n', and the desired antenna switching configuration n'Tm'R included in the CSI measurement report and the CQI perform switching of the antenna switching configuration.
  • the device may fully consider the desired number of receiving antennas/the desired number of transmitting antennas/the desired antenna switching configuration on the terminal side.
  • the present disclosure also provides a switching device for the antenna switching configuration.
  • the implementation of the switching method of the antenna switching configuration is also applicable to the switching device of the antenna switching configuration provided in this embodiment, and will not be described in detail in this embodiment.
  • FIG. 7 is a schematic structural diagram of a switching device in an antenna switching configuration provided by an embodiment of the present disclosure. The device is applied to the terminal.
  • the switching device 700 of the antenna switching configuration includes:
  • the receiving module 701 is configured to receive a channel state information CSI measurement reporting request related to switching of the antenna switching configuration, wherein the CSI measurement reporting request is used to indicate a measurement resource of the CSI measurement configuration.
  • a measurement module 702 configured to perform CSI measurement to obtain a CSI measurement report, where the CSI measurement report includes configuration information of antenna switching.
  • the sending module 703 is configured to report the CSI measurement report to the network device for changing the antenna switching configuration of the terminal.
  • the terminal after receiving the CSI measurement report request, the terminal reports the CSI measurement report including the configuration information of the antenna switching to the network device, so that the network device can perform the switching of the antenna switching configuration based on the CSI measurement report Therefore, in the antenna switching configuration switching method of the embodiment of the present disclosure, the antenna configuration supported by the terminal side is considered, so that the terminal and service requirements can be adapted to support the switching of the antenna switching configuration faster and more flexibly.
  • the configuration information for antenna switching includes at least one channel quality indicator CQI corresponding to the antenna switching configuration or the configuration information for antenna switching includes at least one set of CQI and transmission rank indicator RI.
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and a desired antenna switching configuration to switch to.
  • the measurement module 702 is configured to, for a network device supporting a single transmission reception point TRP, perform CSI measurement and calculation based on channel measurement resources corresponding to the TRP to obtain the configuration information of the antenna switching to obtain the CSI measurement report.
  • the measurement module 702 is configured to, for a network device supporting multiple transmission reception point TRPs, determine the multiple TRP participating in joint transmission based on a pre-defined multiple TRP transmission assumption or a multiple TRP transmission mode configured by the network device through signaling. TRPs; perform CSI measurement calculation based on the channel measurement resources corresponding to each TRP participating in the joint transmission to obtain the configuration information of the antenna switching corresponding to each TRP participating in the joint transmission and/or based on the channel measurement corresponding to the multiple TRPs participating in the joint transmission The resource performs joint CSI measurement calculation to obtain the configuration information of the antenna switching, so as to obtain the CSI measurement report.
  • the measurement module 702 is configured to calculate the configuration information of the antenna switching according to the number of multiple receiving antennas of the antenna switching capability supported by the terminal and a calculation rule.
  • the calculation rule includes one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; for Not more than the number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, respectively calculate the configuration information of antenna switching corresponding to different numbers of receiving antennas; The number of one or more receiving antennas of the antenna switching capability supported by the terminal, and the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the pre-configured or designated one or more antenna switching capabilities supported by the terminal For the number of receiving antennas, the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas with the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the measurement module 702 is configured to receive a signaling configuration about a reporting method and configure information and/or joint CSI measurement for antenna switching corresponding to each TRP participating in joint transmission according to the signaling configuration
  • the obtained configuration information of antenna switching is included in the CSI measurement report; or according to the predetermined reporting method of the terminal, the configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or joint CSI measurement are obtained
  • the configuration information of the antenna switching is included in the CSI measurement report.
  • the pre-defined multi-TRP transmission assumptions include one of the following: a multi-TRP transmission mode of a recently scheduled downlink channel; a pre-defined multi-TRP transmission mode of a downlink channel.
  • the downlink channel is a physical downlink shared channel PDSCH or a physical downlink control channel PDCCH.
  • FIG. 8 is a schematic structural diagram of a switching device in an antenna switching configuration provided by an embodiment of the present disclosure. The device is applied to network equipment.
  • the switching device 800 of the antenna switching configuration includes:
  • a sending module 801 configured to send a channel state information CSI measurement reporting request related to the switching of the antenna switching configuration to the terminal, wherein the CSI measurement reporting request is used to indicate the measurement resource of the CSI measurement configuration;
  • a receiving module 802 configured to receive a CSI measurement report sent by a terminal, where the CSI measurement report includes configuration information of antenna switching;
  • a configuration module 803, configured to change the antenna switching configuration of the terminal based on the CSI measurement report.
  • the network device sends a CSI measurement report request to the terminal when switching of the antenna switching configuration is required to obtain a CSI measurement report including the configuration information of the antenna switching from the terminal, and performs the antenna switching according to the CSI measurement report Configuration switching, therefore, in the antenna switching configuration switching method of the embodiment of the present disclosure, the antenna configuration supported by the terminal side is considered, so that the terminal and service requirements can be adapted to support antenna configuration switching faster and more flexibly.
  • the configuration information for antenna switching includes at least one channel quality indicator CQI corresponding to the antenna switching configuration or the configuration information for antenna switching includes at least one set of CQI and transmission rank indicator RI (CQI/RI).
  • the CSI measurement report further includes at least one of: a desired number of receive antennas; a desired number of transmit antennas; and an antenna switching configuration to which the terminal desires to switch.
  • the CSI measurement report is obtained according to the configuration information of antenna switching calculated based on the channel measurement resource corresponding to the TRP by performing the CSI measurement of.
  • the CSI measurement report is obtained according to the configuration information of antenna switching calculated as follows: based on the channels corresponding to each TRP participating in the joint transmission, respectively
  • the configuration information of antenna switching corresponding to each TRP participating in the joint transmission is calculated by performing CSI measurement on the measurement resources; and/or based on the channel measurement resources corresponding to the multiple TRPs participating in the joint transmission. configuration information for antenna switching.
  • the multiple TRPs participating in the joint transmission are determined by a predefined multiple TRP transmission assumption or a multiple TRP transmission mode configured by the network device through signaling.
  • the configuration information of the antenna switching is calculated according to the number of multiple receiving antennas and the calculation rule of the antenna switching capability supported by the terminal.
  • the calculation rule includes one of the following: for a group of different receiving antenna numbers corresponding to different antenna switching capabilities supported by the terminal, respectively calculate the configuration information of antenna switching corresponding to different receiving antenna numbers; for Not more than the number of one or more receiving antennas corresponding to the antenna switching capability configuration on the current partial bandwidth BWP of the terminal, respectively calculate the configuration information of antenna switching corresponding to different numbers of receiving antennas; The number of one or more receiving antennas of the antenna switching capability supported by the terminal, and the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the pre-configured or designated one or more antenna switching capabilities supported by the terminal For the number of receiving antennas, the configuration information of antenna switching corresponding to different numbers of receiving antennas is calculated respectively; for the number of receiving antennas with the antenna switching capability supported by the terminal corresponding to the predefined switching strategy, the configuration information of antenna switching is calculated.
  • the CSI measurement report includes configuration information of antenna switching corresponding to one or more TRPs participating in joint transmission and/or configuration information of antenna switching calculated by joint CSI measurement.
  • the sending module 801 is further configured to: send signaling to the terminal to configure a reporting method of the configuration information of antenna switching for the terminal, where the reporting method includes: corresponding to each TRP participating in the joint transmission
  • the configuration information of antenna switching and/or the configuration information of antenna switching calculated by joint CSI measurement is included in the CSI measurement report for reporting.
  • the pre-defined multi-TRP transmission assumptions include one of the following: a multi-TRP transmission mode of a recently scheduled downlink channel; a pre-defined multi-TRP transmission mode of a downlink channel.
  • the downlink channel is a physical downlink shared channel PDSCH or a physical downlink control channel PDCCH.
  • the present disclosure also provides a communication device and a computer-readable storage medium.
  • FIG. 9 it is a block diagram of a communication device according to an embodiment of the present disclosure.
  • Communication devices are intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers.
  • Communication devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices, and other similar computing devices.
  • the components shown herein, their connections and relationships, and their functions are by way of example only, and are not intended to limit implementations of the disclosure described and/or claimed herein.
  • the communication device includes: one or more processors 910, a memory 920, and interfaces for connecting various components, including a high-speed interface and a low-speed interface.
  • the various components are interconnected using different buses and may be mounted on a common motherboard or otherwise as desired.
  • the processor may process instructions executed within the communication device, including instructions stored in or on memory to display graphical information of the GUI on an external input/output device, such as a display device coupled to the interface.
  • multiple processors and/or multiple buses may be used with multiple memories and multiple memories, if desired.
  • multiple communication devices may be connected, with each device providing some of the necessary operations (eg, as a server array, a group of blade servers, or a multi-processor system).
  • a processor 910 is taken as an example in FIG. 9 .
  • the memory 920 is the non-transitory computer-readable storage medium provided by the present disclosure.
  • the memory stores instructions executable by at least one processor, so that the at least one processor executes the switching method of the antenna switching configuration provided by the present disclosure.
  • the non-transitory computer-readable storage medium of the present disclosure stores computer instructions for causing the computer to execute the switching method of the antenna switching configuration provided by the present disclosure.
  • the memory 920 can be used to store non-transitory software programs, non-transitory computer-executable programs and modules, such as program instructions/modules corresponding to the switching method of the antenna switching configuration in the embodiments of the present disclosure.
  • the processor 910 executes various functional applications and data processing of the server by running the non-transitory software programs, instructions and modules stored in the memory 920, that is, to implement the switching method of the antenna switching configuration in the above method embodiments.
  • the memory 920 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the positioning communication device, and the like. Additionally, memory 920 may include high-speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage device. Optionally, memory 920 may optionally include memory located remotely from processor 910, and these remote memories may be connected to the positioning communication device via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
  • the communication device may further include: an input device 930 and an output device 940 .
  • the processor 910, the memory 920, the input device 930, and the output device 940 may be connected by a bus or in other ways, and the connection by a bus is taken as an example in FIG. 9 .
  • the input device 930 may receive input numerical or character information and generate key signal input related to user settings and functional control of the positioning communication device, such as a touch screen, keypad, mouse, trackpad, touchpad, pointing stick, one or more Input devices such as mouse buttons, trackballs, joysticks, etc.
  • the output device 940 may include a display device, auxiliary lighting devices (eg, LEDs), haptic feedback devices (eg, vibration motors), and the like.
  • the display device may include, but is not limited to, a liquid crystal display (LCD), a light emitting diode (LED) display, and a plasma display. In some implementations, the display device may be a touch screen.
  • Various implementations of the systems and techniques described herein can be implemented in digital electronic circuitry, integrated circuit systems, application specific ASICs (application specific integrated circuits), computer hardware, firmware, software, and/or combinations thereof. These various embodiments may include being implemented in one or more computer programs executable and/or interpretable on a programmable system including at least one programmable processor that The processor, which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • the processor which may be a special purpose or general-purpose programmable processor, may receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device an output device.
  • machine-readable medium and “computer-readable medium” refer to any computer program product, apparatus, and/or apparatus for providing machine instructions and/or data to a programmable processor ( For example, magnetic disks, optical disks, memories, programmable logic devices (PLDs)), including machine-readable media that receive machine instructions as machine-readable signals.
  • machine-readable signal refers to any signal used to provide machine instructions and/or data to a programmable processor.
  • the systems and techniques described herein may be implemented on a computer having a display device (eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user ); and a keyboard and pointing device (eg, a mouse or trackball) through which a user can provide input to the computer.
  • a display device eg, a CRT (cathode ray tube) or LCD (liquid crystal display) monitor
  • a keyboard and pointing device eg, a mouse or trackball
  • Other kinds of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (eg, visual feedback, auditory feedback, or tactile feedback); and can be in any form (including acoustic input, voice input, or tactile input) to receive input from the user.
  • the systems and techniques described herein may be implemented on a computing system that includes back-end components (eg, as a data server), or a computing system that includes middleware components (eg, an application server), or a computing system that includes front-end components (eg, a user computer having a graphical user interface or web browser through which a user may interact with implementations of the systems and techniques described herein), or including such backend components, middleware components, Or any combination of front-end components in a computing system.
  • the components of the system may be interconnected by any form or medium of digital data communication (eg, a communication network). Examples of communication networks include: Local Area Networks (LANs), Wide Area Networks (WANs), and the Internet.
  • a computer system can include clients and servers.
  • Clients and servers are generally remote from each other and usually interact through a communication network.
  • the relationship of client and server arises by computer programs running on the respective computers and having a client-server relationship to each other.

Abstract

本发明提出了一种天线切换配置的切换方法,在该方案中,通过根据终端侧上报的包括天线切换的配置信息的CSI测量报告来进行天线切换配置的切换,因此本申请的天线切换配置的切换方法考虑了终端侧支持的天线配置情况,从而更快更灵活地适应终端和业务要求支持天线配置的切换。

Description

一种天线切换配置的切换方法及设备 技术领域
本公开涉及移动通信技术领域,特别是指一种天线切换配置的切换方法及设备。
背景技术
在通信领域中,为了适应业务或场景变化,终端可能需要改变天线配置。当前的天线配置,可以通过无线资源控制(Radio Resource Control,RRC)重配或部分带宽(Bandwidth Part,BWP)切换实现。但是,这个切换主要通过业务变化由网络侧重新调度来实现而无法根据终端侧的情况触发。
发明内容
本公开提供了一种天线切换配置的切换方法和设备,能够更快更灵活地适应终端和业务要求支持天线切换配置的改变和回退。
本公开第一方面实施例提出了一种天线切换配置的切换方法,所述方法应用于终端,所述方法包括:接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;进行CSI测量以获得CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及向网络设备上报所述CSI测量报告。
可选地,所述天线切换的配置信息包括与天线切换配置对应的:至少一个信道质量指示CQI;或至少一组CQI和传输秩指示RI。
可选地,所述CSI测量报告还包括以下中的至少一种:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。
可选地,所述进行CSI测量以获得CSI测量报告包括:对于支持单传输接收点TRP的网络设备,基于与所述TRP对应的信道测量资源进行CSI测量计算得到所述天线切换的配置信息以获得所述CSI测量报告。
可选地,所述进行CSI测量以获得CSI测量报告包括:对于支持多传输接收点TRP的网络设备,于预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP;分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP分别对应的天线切换的配置信息和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息,以获得所述CSI测量报告。
可选地,所述计算得到所述天线切换的配置信息包括:根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算所述天线切换的配置信息。
可选地,所述计算规则包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
可选地,所述获得所述CSI测量报告包括:接收关于上报方式的信令配置并根据所述信令配置将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中;或根据终端的预定上报方式,将参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中。
可选地,所述预定义多TRP传输假设包括以下一种:最近调度的下行信道的多TRP传输模式;预定义的下行信道的多TRP传输模式。
可选地,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
本公开第二方面实施例提出了一种天线切换配置的切换方法,所述方法应用于网络设备,所述方法包括:向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及基于所述CSI测量报告改变终端的天线切换配置。
可选地,所述天线切换的配置信息包括与天线切换配置对应的:至少一个信道质量指示CQI;或至 少一组CQI和传输秩指示RI。
可选地,所述CSI测量报告还包括以下中的至少一种:期望接收天线数;期望发送天线数;以及终端期望切换至的天线切换配置。
可选地,当所述网络设备支持单传输接收点TRP时,所述CSI测量报告是根据基于与所述TRP对应的信道测量资源进行CSI测量以计算得出的天线切换的配置信息获得的。
可选地,当所述网络设备支持多传输接收点TRP时,所述CSI测量报告是根据如下计算得出的天线切换的配置信息获得的:分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得出的参与联合传输的各个TRP分别对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得出的所述天线切换的配置信息。其中参与联合传输的多个TRP由预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定。
可选地,所述天线切换的配置信息是根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算得出的。
可选地,所述计算规则包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
可选地,所述CSI测量报告包括参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息。
可选地,所述方法还包括:向所述终端发送信令以为终端配置天线切换的配置信息的上报方式,所述上报方式包括:将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中进行上报。
可选地,所述预定义多TRP传输假设包括以下一种:最近调度的下行信道的多TRP传输模式;预定义的下行信道的多TRP传输模式。
可选地,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
本公开第三方面实施例提出了一种天线切换配置的切换设备,所述设备应用于终端,所述设备包括:接收模块,用于接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;测量模块,用于进行CSI测量以获得CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及发送模块,用于向网络设备上报所述CSI测量报告。
本公开第四方面实施例提出了一种天线切换配置的切换设备,所述方法应用于网络设备,所述设备包括:发送模块,用于向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;接收模块,用于接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及配置模块,用于基于所述CSI测量报告改变终端的天线切换配置。
本公开第五方面实施例提出了一种通信设备,包括:收发器;存储器;处理器,分别与所述收发器及所述存储器连接,配置为通过执行所述存储器上的计算机可执行指令,控制所述收发器的无线信号收发,并能够实现上述第一方面实施例、或第二方面实施例所述的天线切换配置的切换方法。
本公开第六方面实施例提出了一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现上述第一方面实施例、或第二方面实施例所述的天线切换配置的切换方法。
本公开实施例提供的一种的天线切换配置的切换方法及设备,通过根据终端侧上报的包括至少一个CQI的CSI测量报告来进行天线切换配置的切换,因此本申请的天线切换配置的切换方法考虑了终端侧支持的天线配置情况,从而更快更灵活地适应终端和业务要求支持天线配置的切换。
本公开附加的方面和优点将在下面的描述中部分给出,部分将从下面的描述中变得明显,或通过本公开的实践了解到。
附图说明
本公开上述的和/或附加的方面和优点从下面结合附图对实施例的描述中将变得明显和容易理解,其中:
图1为根据本公开实施例的一种天线切换配置的切换方法的流程图;
图2为根据本公开实施例的一种天线切换配置的切换方法的流程图;
图3为根据本公开实施例的一种天线切换配置的切换方法的流程图;
图4为根据本公开实施例的一种天线切换配置的切换方法的流程图;
图5为根据本公开实施例的另一种天线切换配置的切换方法的流程图;
图6为根据本公开实施例的另一种天线切换配置的切换方法的流程图;
图7为本公开实施例提供的一种天线切换配置的切换设备的结构示意图;
图8为本公开实施例提供的一种天线切换配置的切换设备的结构示意图;
图9为本公开实施例提供的一种通信设备的结构示意图。
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。
本文所描述的技术不限于第五代移动通信(5th-generation,5G)系统以及后续演进通信系统,以及不限于LTE/LTE的演进(LTE-Advanced,LTE-A)系统,并且也可用于各种无线通信系统,诸如码分多址(Code Division Multiple Access,CDMA)、时分多址(TimeDivision Multiple Access,TDMA)、频分多址(Frequency Division Multiple Access,FDMA)、正交频分多址(Orthogonal Frequency Division Multiple Access,OFDMA)、单载波频分多址(Single-carrier Frequency-Division Multiple Access,SC-FDMA)和其他系统。
本发明实施例提供的终端可以为手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer,UMPC)、上网本或者个人数字助理(PersonalDigital Assistant,PDA)、移动上网装置(Mobile Internet Device,MID)、可穿戴式设备(Wearable Device)或车载设备等。
现今,当前的天线配置,可以通过无线资源控制(Radio Resource Control,RRC)重配或带宽部分(Bandwidth Part,BWP)切换实现。但是,这个切换主要通过业务变化由网络侧重新调度实现而无法根据终端侧的情况触发。因此,当前的天线配置无法更快更灵活地适应终端和业务要求支持天线配置的切换。此外,考虑到对终端的天线数进一步增加的需求,可以增加天线数以使得终端可以支持最大6条天线或8条天线。对于支持更多数量天线的终端,终端可以支持更多种不同的天线配置,因此,当前的天线配置方法更难以满足此类终端的天线切换配置的切换需求。
鉴于此,本公开提供了一种天线切换配置的切换方法和设备,通过根据终端侧上报的包括至少一个CQI的CSI测量报告来进行天线切换配置的切换,因此本申请的天线切换配置的切换方法考虑了终端侧支持的天线配置情况,从而更快更灵活地适应终端和业务要求支持天线切换配置的切换。
图1示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由终端执行,如图1所示,该天线切换配置的切换方法包括以下步骤:
S101,接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,CSI测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,终端可以接收到信道状态信息(Channel State information,CSI)测量上报请求,该CSI测量上报请求与天线切换配置的切换相关,即该CSI测量上报请求是为实现天线切换配置的切换而发出的。例如,在需要执行天线切换配置的切换时,网络设备可以针对此天线切换配置的切换需求发出CSI测量上报请求,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S102,进行CSI测量以获得CSI测量报告,CSI测量报告包括天线切换的配置信息。
在本实施例中,终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQI和传输秩指示(Rank Indication,RI),即同时包括CQ和RI,例如,一个CQI和一个RI可构成一组CQI和RI(也可记为CQI/RI)。
终端获得的CSI测量报告包括至少一个CQI,或者包括至少一组CQI/RI。终端将CSI测量报告发送给网络设备,网络设备可以根据该CSI测量报告中包括的至少一个CQI或者至少一组CQI/RI来执行天线切换配置的切换。
S103,向网络设备上报CSI测量报告。
其中,网络设备可以是基站,该基站可以包括多个为终端设备提供服务的小区。根据具体应用场合 不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。
在本实施例中,终端将获得的CSI测量报告上报给网络设备,网络设备在获得该CSI测量报告进行天线切换配置的切换。具体地,网络设备可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,终端在接收到CSI测量上报请求后,将包括天线切换的配置信息的CSI测量报告上报给网络设备,使得网络设备可以基于该CSI测量报告来执行天线切换配置的切换,因此,在本公开实施例的天线切换配置的切换方法中,考虑了终端侧支持的天线配置情况,从而能够更快更灵活地适应终端和业务要求支持天线切换配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及天线切换的配置信息同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
图2示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由终端执行,如图2所示,该天线切换配置的切换方法包括以下步骤:
S201,接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,CSI测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,终端可以接收到CSI测量上报请求,该CSI测量上报请求与天线切换配置的切换相关,即该CSI测量上报请求是为实现天线切换配置的切换而发出的。例如,在需要执行天线切换配置的切换时,网络设备可以针对此天线切换配置的切换需求发出CSI测量上报请求,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S202,进行CSI测量以获得CSI测量报告,CSI测量报告包括天线切换的配置信息。
在本实施例中,终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQI和传输秩指示(Rank Indication,RI)。
终端获得的CSI测量报告包括至少一个CQI,或者包括至少一组CQI/RI。终端将CSI测量报告发送给网络设备,网络设备可以根据该CSI测量报告中包括的至少一个CQI或者至少一组CQI/RI来执行天线切换配置的切换。
在通信系统中,存在支持单传输接收点(Transport receive point,TRP)的网络设备和/或支持多TRP的网络设备,对于支持单TRP的网络设备和支持多TRP的网络设备,CSI测量计算的方式不同。
在一些实施例中,对于支持单TRP的网络设备,进行CSI测量以获得CSI测量报告可以通过以下步骤来实现。
S2021,对于支持单传输接收点TRP的网络设备,基于与单TRP对应的信道测量资源,进行CSI测量计算得到所述天线切换的配置信息以获得CSI测量报告。
在本实施例中,对于支持单传输接收点(Transport receive point,TRP)的网络设备,可以使用与该单TRP对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到天线切换的配置信息。其中,一个或多个NZP CSI-RS至少包括最近接收的NZP CSI-RS,可选地,还包括先前接收的NZP CSI-RS。
在一些实施例中,使用与该单TRP传输对应的最近接收的非零功率信道状态信息参考信号(non-zero-power Channel State Information Reference Signal,NZP CSI-RS)进行CSI测量计算得到天线切换的配置信息。
例如,对于支持单TRP的网络设备,在CSI测量报告的高层信令配置测量限制(信道测量限制timeRestrictionForChannelMeasurements和/或干扰测量限制timeRestrictionForInterferenceMeasurements)的情况下,终端可以仅使用来自该单TRP的最近接收的NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。
在一些实施例中,使用与该单TRP传输对应的最近接收的NZP CSI-RS以及先前接收的若干个NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。
例如,对于支持单TRP的网络设备,在CSI测量报告的高层信令配置测量限制(信道测量限制timeRestrictionForChannelMeasurements和/或干扰测量限制timeRestrictionForInterferenceMeasurements)的情况下,终端可以使用来自该单TRP的最近接收的NZP CSI-RS以及先前接收的NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。通过使用最近接收的以及先前接收的NZP CSI-RS,可以实现更平滑的CSI测量。
在一些实施例中,天线切换的配置信息可如下地计算得出:
S20211,根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算所述天线切换的配置信息。
在本实施例中,根据终端支持的天线切换能力的多种接收天线数目和计算规则计算天线切换的配置信息。终端的天线切换能力可以指示终端可以支持的天线配置切换方式,即可以在终端的天线切换能力所支持的多种天线配置之间进行切换,例如终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置切换:从1个发送天线1个接收天线切换为2个发送天线2个接收天线,从2个发送天线2个接收天线切换为4个发送天线4个接收天线,从1个发送天线1个接收天线切换为4个发送天线4个接收天线,从4个发送天线4个接收天线切换为2个发送天线2个接收天线,从4个发送天线4个接收天线切换为1个发送天线1个接收天线,从2个发送天线2个接收天线切换为1个发送天线1个接收天线等等。此外,终端的天线切换能力还可以指示天线配置回退方式,即可以从终端的天线切换能力所支持的高能力天线配置改变为较低能力天线配置,例如,终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置回退:从4个发送天线4个接收天线回退为2个发送天线2个接收天线,从2个发送天线2个接收天线回退为1个发送天线1个接收天线。
在本实施例中,该计算规则可以网络设备和终端共同预定义或由所述网络设备通过高层信令配置指示给所述终端。例如,计算规则可以由网络设备经由无线资源控制(Radio Resource Control,RRC)信令、媒体接入层控制单元(Media Access Control Control Element,MAC CE)等信令进行配置。
在一些实施例中,该计算规则可以包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
(1)在一实施例中,对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
根据不同天线切换能力对应的一组不同接收天线数,分别计算对应不同接收天线数目的天线切换的配置信息。例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,则对于天线切换能力1T1R_2T2R_4T4R,根据接收天线数目1、2、4计算一组天线切换的配置信息,而对于天线切换能力1T1R_2T2R,根据接收天线数目1、2计算一组天线切换的配置信息。
(2)在另一实施例中,对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端当前当前部分带宽(Bandwidth Part,BWP)上配置为2T2R且所对应的天线切换能力配置为1T1R_2T2R_4T4R,则根据接收天线数目1、2计算一组天线切换的配置信息。
(3)在另一实施例中,对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预设接收天线数为4,则根据接收天线数目1、2、4计算一组天线切换的配置信息。
(4)在另一实施例中,对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预先配置或指定的指定接收天线数包括接收天线数1以及接收天线数2,则根据接收天线数1、2计算一组天线切换的配置信息。
又例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预定配置为测量回退方式,且终端当前配置为4T4R,则根据接收天线数2、4计算一组天线切换的配置信息。
(5)在另一实施例中,对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
例如,预定义切换策略为按照终端支持的天线切换能力的1T1R_2T2R_4T4R切换至天线配置4T4R,则根据接收天线数4计算天线切换的配置信息。
S203,向网络设备上报CSI测量报告。
在本实施例中,终端将获得的CSI测量报告上报给网络设备,网络设备在获得该CSI测量报告进行天线切换配置的切换。具体地,网络设备可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,终端在接收到CSI测量上报请求后,对于支持单TRP的网络设备,使用该单TRP对应的信道资源进行CSI测量计算以生成CSI测量报告,网络设备可以基于该CSI测量报告来执行天线切换配置的切换,因而能够更快更灵活地适应终端和业务要求支持天线切换配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及天线切换的配置信息同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
图3示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由终端执行,如图3所示,该天线切换配置的切换方法包括以下步骤:
S301,接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,CSI测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,终端可以接收到CSI测量上报请求,该CSI测量上报请求与天线切换配置的切换相关,即该CSI测量上报请求是为实现天线切换配置的切换而发出的。例如,在需要执行天线切换配置的切换时,网络设备可以针对此天线切换配置的切换需求发出CSI测量上报请求,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S302,进行CSI测量以获得CSI测量报告,CSI测量报告包括天线切换的配置信息。
在本实施例中,终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQ和传输秩指示(Rank Indication,RI)。
终端获得的CSI测量报告包括至少一个CQI,或者包括至少一组CQI/RI。终端将CSI测量报告发送给网络设备,网络设备可以根据该CSI测量报告中包括的至少一个CQI或者至少一组CQI/RI来执行天线切换配置的切换。
在通信系统中,存在支持单传输接收点(Transport receive point,TRP)的网络设备和/或支持多TRP的网络设备,对于支持单TRP的网络设备和支持多TRP的网络设备,CSI测量计算的方式不同。
在一些实施例中,对于支持多TRP的网络设备,进行CSI测量以获得CSI测量报告可以通过以下步骤来实现。
S3021,对于支持多传输接收点TRP的网络设备,基于预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP。
对于支持多TRP的网络设备,并非所有的多个TRP都参与联合传输,可以根据多TRP传输假设确定参与联合传输的多个TRP或者可以根据网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP。
在一些实施例中,例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,而网络设备通过信令配置的多TRP传输模式为结合TRP 1、TRP 2和TRP 4实现,则可以确定参与联合传输的多个TRP为TRP 1、TRP 2和TRP 4。
在一些实施例中,多TRP传输假设可以包括以下一种:最近调度的下行信道的多TRP传输模式;以及预定义的下行信道的多TRP传输模式。
例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,在一些实施例中,可以根据最近调度的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 3。在另一些实施例中,可以根据预定义的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若预定义的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若预定义的下行信道的多TRP传输模式为结合TRP 2和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 2和TRP 3。
在一些实施例中,上述下行信道可以为物理下行共享信道PDSCH、物理下行控制信道PDCCH或其他下行信道。
S3022,分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息。
在本实施例中,对于支持多传输接收点(Transport receive point,TRP)的网络设备,可以使用如下方式进行CSI测量:
方式一、对于参与联合传输的各个TRP,基于各个TRP对应的信道测量资源,分别进行CSI测量计算得到参与联合传输的各个TRP对应的天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,以计算得到天线切换的配置信息。
例如,对于TRP 1,使用与TRP 1对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 1对应的天线切换的配置信息。其中,一个或多个NZP CSI-RS至少包括最近接收的NZP CSI-RS,可选地,还包括先前接收的NZP CSI-RS。
对于TRP 2,使用与TRP 2对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 2对应的天线切换的配置信息。
方式二、基于参与联合传输的多个TRP对应的信道测量资源,进行联合CSI测量计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量以计算得到天线切换的配置信息。
方式三、结合方式一和方式二进行CSI测量计算。
在此方式下,既基于各个TRP对应的信道测量资源分别进行CSI测量又基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,并且基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
在一些实施例中,天线切换的配置信息可如下地计算得出:
S30221,根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算所述天线切换的配置信息。
在本实施例中,根据终端支持的天线切换能力的多种接收天线数目和计算规则计算天线切换的配置信息。终端的天线切换能力可以指示终端可以支持的天线配置切换方式,即可以在终端的天线切换能力所支持的多种天线配置之间进行切换,例如终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置切换:从1个发送天线1个接收天线切换为2个发送天线2个接收天线,从2个发送天线2个接收天线切换为4个发送天线4个接收天线,从1个发送天线1个接收天线切换为4个发送天线4个接收天线,从4个发送天线4个接收天线切换为2个发送天线2个接收天线,从4个发送天线4个接收天线切换为1个发送天线1个接收天线,从2个发送天线2个接收天线切换为1个发送天线1个接收天线等等。此外,终端的天线切换能力还可以指示天线配置回退方式,即可以从终端的天线切换能力所支持的高能力天线配置改变为较低能力天线配置,例如,终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置回退:从4个发送天线4个接收天线回退为2个发送天线2个接收天线,从2个发送天线2个接收天线回退为1个发送天线1个接收天线。
在本实施例中,该计算规则可以网络设备和终端共同预定义或由所述网络设备通过高层信令配置指示给所述终端。例如,计算规则可以由网络设备经由无线资源控制(Radio Resource Control,RRC)信令、媒体接入层控制单元(Media Access Control Control Element,MAC CE)等信令进行配置。
在一些实施例中,该计算规则可以包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
(1)在一实施例中,对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
根据不同天线切换能力对应的一组不同接收天线数,分别计算天线切换的配置信息。例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,则对于天线切换能力1T1R_2T2R_4T4R,根据接收天线数目1、2、4计算一组天线切换的配置信息,而对于天线切换能力1T1R_2T2R,根据接收天线数目1、2计算一组天线切换的配置信息。
(2)在另一实施例中,对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端当前当前部分带宽(Bandwidth Part,BWP)上配置为2T2R且所对应的天线切换能力配置为1T1R_2T2R_4T4R,则根据接收天线数目1、2计算一组天线切换的配置信息。
(3)在另一实施例中,对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预设接收天线数为4,则根据接收天线数目1、2、4计算一组天线切换的配置信息。
(4)在另一实施例中,对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预先配置或指定的指定接收天线数包括接收天线数1以及接收天线数2,则根据接收天线数1、2计算一组天线切换的配置信息。
又例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预定配置为测量回退方式,且终端当前配置为4T4R,则根据接收天线数2、4计算一组天线切换的配置信息。
(5)在另一实施例中,对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
例如,预定义切换策略为按照终端支持的天线切换能力的1T1R_2T2R_4T4R切换至天线配置4T4R,则根据接收天线数4计算天线切换的配置信息。
S3023,根据所述天线切换的配置信息获得CSI测量报告。
在计算得到天线切换的配置信息之后,可以根据计算得出的天线切换的配置信息获得CSI测量报告。
S303,向网络设备上报CSI测量报告。
在本实施例中,终端将获得的CSI测量报告上报给网络设备,网络设备在获得该CSI测量报告进 行天线切换配置的切换。具体地,网络设备可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,终端在接收到CSI测量上报请求后,对于支持多TRP的网络设备,可以采用多种不同方式进行CSI测量计算以生成CSI测量报告,网络设备可以基于该CSI测量报告来执行天线切换配置的切换,因而能够更快更灵活地适应终端和业务要求支持天线配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及天线切换的配置信息同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
图4示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由终端执行,如图4所示,该天线切换配置的切换方法包括以下步骤:
S401,接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,CSI测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,终端可以接收到CSI测量上报请求,该CSI测量上报请求与天线切换配置的切换相关,即该CSI测量上报请求是为实现天线切换配置的切换而发出的。例如,在需要执行天线切换配置的切换时,网络设备可以针对此天线切换配置的切换需求发出CSI测量上报请求,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S402,进行CSI测量以获得CSI测量报告,CSI测量报告包括天线切换的配置信息。
在本实施例中,终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQI和传输秩指示(Rank Indication,RI)。
在通信系统中,存在支持单传输接收点(Transport receive point,TRP)的网络设备和/或支持多TRP的网络设备,对于支持单TRP的网络设备和支持多TRP的网络设备,CSI测量计算的方式不同。
在一些实施例中,对于支持多TRP的网络设备,进行CSI测量以获得CSI测量报告可以通过以下步骤来实现。
S4021,对于支持多传输接收点TRP的网络设备,基于多TRP传输假设确定参与联合传输的多个TRP。
对于支持多TRP的网络设备,并非所有的多个TRP都参与联合传输,可以根据多TRP传输假设确定参与联合传输的多个TRP。
在一些实施例中,多TRP传输假设可以包括以下一种:最近调度的下行信道的多TRP传输模式;以及预定义的下行信道的多TRP传输模式。
在一些实施例中,上述下行信道可以为物理下行共享信道PDSCH、物理下行控制信道PDCCH或其他下行信道。
S4022,分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息。
在本实施例中,对于支持多传输接收点(Transport receive point,TRP)的网络设备,可以使用如下方式进行CSI测量计算:
方式一、对于参与联合传输的各个TRP,基于各个TRP对应的信道测量资源,分别进行CSI测量计算得到天线切换的配置信息。
方式二、基于参与联合传输的多个TRP对应的信道测量资源,进行联合CSI测量计算得到天线切换的配置信息。
方式三、结合方式一和方式二进行CSI测量计算。
S4023,根据所述天线切换的配置信息获得CSI测量报告。
在计算得到天线切换的配置信息之后,可以根据计算得出的天线切换的配置信息获得CSI测量报告。
具体地,可根据以下任意步骤获得CSI测量报告:
S40231,接收关于上报方式的信令配置并根据所述信令配置将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息包括在所述CSI测量报告。
在本实施例中,终端根据网络设备的信令配置决定如何生成CSI测量报告。网络设备的信令配置可以指示终端如下地上报CSI测量报告:
(1)终端可以上报参与联合传输的各个TRP对应的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2分别进行CSI测量计算得出与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息后,终端可以将所计算得出的所有天线切换的配置信息包括在CSI测量报告中上报给网络设备,即将与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息上报给网络设备。
(2)终端可以上报针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出天线切换的配置信息后,终端可以将所计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
(3)终端可以上报参与联合传输的各个TRP对应的天线切换的配置信息以及针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,终端可以将与TRP 1对应的天线切换的配置信息、与TRP 2对应的天线切换的配置信息、以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
S40232,根据终端的预定上报方式将参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息包括在所述CSI测量报告中进行上报。
在本实施例中,终端根据预定上报方式决定如何生成CSI测量报告。预定上报方式可以指示终端如下地上报CSI测量报告:
(1)终端可以上报参与联合传输的一个或多个TRP对应的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2分别进行CSI测量计算得出与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息后,终端可以从所计算得出的所有天线切换的配置信息中选择一个或多个包括在CSI测量报告中上报给网络设备。
在一些实施例中,终端可以选择部分天线切换配置包括在CSI测量报告中上报给网络设备,例如将与TRP 1对应的天线切换的配置信息上报给网络设备。
在一些实施例中,终端可以选择所有天线切换的配置信息包括在CSI测量报告中上报给网络设备,例如将与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息上报给网络设备。
(2)终端可以上报针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出天线切换的配置信息后,终端可以将所计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
(3)终端可以上报参与联合传输的一个或多个TRP对应的天线切换的配置信息以及针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,终端可以将与TRP 1对应的天线切换的配置信息、与TRP 2对应的天线切换的配置信息、以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
又例如,终端可以将与TRP 1对应的天线切换的配置信息以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
S403,向网络设备上报CSI测量报告。
在本实施例中,终端将获得的CSI测量报告上报给网络设备,网络设备在获得该CSI测量报告进行天线切换配置的切换。具体地,网络设备可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,终端在接收到CSI测量上报请求后,对于支持多TRP的网络设备,可以采用多种不同方式进行CSI测量计算以生成CSI测量报告,网络设备可以基于该CSI测量报告来执行天线切换配置的切换,因而能够更快更灵活地适应终端和业务要求支持天线配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及天线切换的配置信息同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
图5示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由网络设备执行,其中,网络设备可以是基站,该基站可以包括多个为终端设备提供服务的小区。根据具体应用场合不同,基站又可以称为接入点,或者可以是接入网中在空中接口上通过一个或多个扇区与无线终端设备通信的设备,或者其它名称。如图5所示,该天线切换配置的切换方法包括以下步骤:
S501,向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,网络设备在需要执行天线切换配置的切换时,可以针对此天线切换配置的切换需求发出(Channel State information,CSI)测量上报请求,即该CSI测量上报请求是为实现天线切换配置的切换而发出的,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S502,接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息。
在本实施例中,网络设备从终端接收终端响应于CSI测量上报请求反馈的CSI测量报告。终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告,并将CSI测量报告反馈给网络设备。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQI和传输秩指示(Rank Indication,RI)。
终端所获得的CSI测量报告可以包括至少一个CQI,或者包括至少一组CQI/RI,具体如下所述,网络设备可以根据该CSI测量报告中包括的至少一个CQI或者至少一组CQI/RI来执行天线切换配置的切换。
在通信系统中,存在支持单传输接收点(Transport receive point,TRP)的网络设备和/或支持多TRP的网络设备,对于支持单TRP的网络设备和支持多TRP的网络设备,CSI测量计算的方式不同。
在一些实施例中,当网络设备支持单TRP时,CSI测量报告可以根据基于与所述TRP对应的信道测量资源进行CSI测量以计算得出的天线切换的配置信息获得。
在本实施例中,当网络设备支持单传输接收点(Transport receive point,TRP)时,天线切换的配置信息可以是使用与该单TRP对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源进行CSI测量计算得到的。其中,一个或多个NZP CSI-RS至少包括最近接收的NZP CSI-RS,可选地,还包括先前接收的NZP CSI-RS。
在一些实施例中,使用与该单TRP传输对应的最近接收的非零功率信道状态信息参考信号(non-zero-power Channel State Information Reference Signal,NZP CSI-RS)进行CSI测量计算得到天线切换的配置信息。
例如,对于支持单TRP的网络设备,在CSI测量报告的高层信令配置测量限制(信道测量限制timeRestrictionForChannelMeasurements和/或干扰测量限制timeRestrictionForInterferenceMeasurements)的情况下,终端可以仅使用来自该单TRP的最近接收的NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。
在一些实施例中,使用与该单TRP传输对应的最近接收的NZP CSI-RS以及先前接收的若干个NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。
例如,对于支持单TRP的网络设备,在CSI测量报告的高层信令配置测量限制(信道测量限制timeRestrictionForChannelMeasurements和/或干扰测量限制timeRestrictionForInterferenceMeasurements)的情况下,终端可以使用来自该单TRP的最近接收的NZP CSI-RS以及先前接收的NZP CSI-RS进行CSI测量计算得到天线切换的配置信息。通过使用最近接收的以及先前接收的NZP CSI-RS,可以实现更平滑的CSI测量。
在一些实施例中,当网络设备支持多TRP时,CSI测量报告可以根据如下计算得出的天线切换的配置信息生成:分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得出的参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得出的所述天线切换的配置信息。参与联合传输的各个TRP由预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定的。
在本实施例中,当网络设备支持多TRP时,并非所有的多个TRP都参与联合传输,可以根据多TRP传输假设确定参与联合传输的多个TRP或者可以根据网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP。
在一些实施例中,例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,而网络设备通过信令配置的多TRP传输模式为结合TRP 1、TRP 2和TRP 4实现,则可以确定参与联合传输的多个TRP为TRP 1、TRP 2和TRP 4。
在一些实施例中,多TRP传输假设可以包括以下中的一种:最近调度的下行信道的多TRP传输模式;以及预定义的下行信道的多TRP传输模式。
例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,在一些实施例中,可以根据最近调度的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 3。在另一些实施例中,可以根据预定义的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若预定义的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若预定义的下行信道的多TRP传输模式为结合TRP 2和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 2和TRP 3。
在一些实施例中,上述下行信道可以为物理下行共享信道PDSCH、物理下行控制信道PDCCH或其他下行信道。
在确定参与联合传输的多个TRP后,可以分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息。
例如,可以以如下方式进行CSI测量:
方式一、对于参与联合传输的各个TRP,基于各个TRP对应的信道测量资源,分别进行CSI测量计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,以计算得到天线切换的配置信息。
例如,对于TRP 1,使用与TRP 1对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 1对应的天线切换的配置信息。其中,一个或多个NZP CSI-RS至少包括最近接收的NZP CSI-RS,可选地,还包括先前接收的NZP CSI-RS。
对于TRP 2,使用与TRP 2对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 2对应的天线切换的配置信息。
方式二、基于参与联合传输的多个TRP对应的信道测量资源,进行联合CSI测量计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量以计算得到天线切换的配置信息。
方式三、结合方式一和方式二进行CSI测量计算。
在此方式下,既基于各个TRP对应的信道测量资源分别进行CSI测量又基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,并且基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
在一些实施例中,天线切换的配置信息是根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算得出的。
在本实施例中,天线切换的配置信息是根据终端支持的天线切换能力的多种接收天线数目和计算规则计算得出的。终端的天线切换能力可以指示终端可以支持的天线配置切换方式,即可以在终端的天线切换能力所支持的多种天线配置之间进行切换,例如终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置切换:从1个发送天线1个接收天线切换为2个发送天线2个接收天线,从2个发送天线2个接收天线切换为4个发送天线4个接收天线,从1个发送天线1个接收天线切换为4个发送天线4个接收天线,从4个发送天线4个接收天线切换为2个发送天线2个接收天线,从4个发送天线4个接收天线切换为1个发送天线1个接收天线,从2个发送天线2个接收天线切换为1个发送天线1个接收天线等等。此外,终端的天线切换能力还可以指示天线配置回退方式,即可以从终端的天线切换能力所支持的高能力天线配置改变为较低能力天线配置,例如,终端的天线切换能力指示1T1R_2T2R_4T4R,则表明终端支持如下天线配置回退:从4个发送天线4个接收天线回退为2个发送天线2个接收天线,从2个发送天线2个接收天线回退为1个发送天线1个接收天线。
在本实施例中,该计算规则可以网络设备和终端共同预定义或由所述网络设备通过高层信令配置指示给所述终端。例如,计算规则可以由网络设备经由无线资源控制(Radio Resource Control,RRC)信令、媒体接入层控制单元(Media Access Control Control Element,MAC CE)等信令进行配置。
在一些实施例中,该计算规则可以包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
(1)在一实施例中,对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
根据不同天线切换能力对应的一组不同接收天线数,分别计算天线切换的配置信息。例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,则对于天线切换能力1T1R_2T2R_4T4R,根据接收天线数目1、2、4计算一组天线切换的配置信息,而对于天线切换能力1T1R_2T2R,根据接收天线数目1、2计算一组天线切换的配置信息。
(2)在另一实施例中,对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端当前当前部分带宽(Bandwidth Part,BWP)上配置为2T2R且所对应的天线切换能力配置为1T1R_2T2R_4T4R,则根据接收天线数目1、2计算一组天线切换的配置信息。
(3)在另一实施例中,对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预设接收天线数为4,则根据接收天线数目1、2、4计算一组天线切换的配置信息。
(4)在另一实施例中,对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息。
例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预先配置或指定的指定接收天线数包括接收天线数1以及接收天线数2,则根据接收天线数1、2计算一组天线切换的配置信息。
又例如,终端的天线切换能力指示1T1R_2T2R以及1T1R_2T2R_4T4R,而预定配置为测量回退方式,且终端当前配置为4T4R,则根据接收天线数2、4计算一组天线切换的配置信息。
(5)在另一实施例中,对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数 目,计算天线切换的配置信息。
例如,预定义切换策略为按照终端支持的天线切换能力的1T1R_2T2R_4T4R切换至天线配置4T4R,则根据接收天线数4计算天线切换的配置信息。
在一些实施例中,当网络设备支持多TRP时,CSI测量报告可以包括参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息。
在本实施例中,终端根据预定上报方式决定如何生成CSI测量报告,基于该预定上报方式CSI测量报告可以包括参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息。预定上报方式可以指示终端如下地上报CSI测量报告:
(1)终端可以上报参与联合传输的一个或多个TRP对应的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2分别进行CSI测量计算得出与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息后,终端可以从所计算得出的所有天线切换的配置信息中选择一个或多个包括在CSI测量报告中上报给网络设备。
在一些实施例中,终端可以选择部分天线切换配置包括在CSI测量报告中上报给网络设备,例如将与TRP 1对应的天线切换的配置信息上报给网络设备。
在一些实施例中,终端可以选择所有天线切换的配置信息包括在CSI测量报告中上报给网络设备,例如将与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息上报给网络设备。
(2)终端可以上报针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出天线切换的配置信息后,终端可以将所计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
(3)终端可以上参与联合传输的一个或多个TRP对应的天线切换的配置信息以及针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,终端可以将与TRP 1对应的天线切换的配置信息、与TRP 2对应的天线切换的配置信息、以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
又例如,终端可以将与TRP 1对应的天线切换的配置信息以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
S503,基于所述CSI测量报告改变终端的天线切换配置。
在本实施例中,网络设备在接收到CSI测量报告之后,可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,网络设备在需要进行天线切换配置的切换时向终端发出CSI测量上报请求以从终端获得包括天线切换的配置信息的CSI测量报告,并根据该CSI测量报告执行天线切换配置的切换,因此,在本公开实施例的天线切换配置的切换方法中,考虑了终端侧支持的天线配置情况,从而能够更快更灵活地适应终端和业务要求支持天线配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
图6示出了根据本公开实施例的一种天线切换配置的切换方法的流程示意图。在本实施例中,方法由网络设备执行,如图6所示,该天线切换配置的切换方法包括以下步骤:
S601,向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI 测量上报请求用于指示CSI测量配置的测量资源。
在本实施例中,网络设备在需要执行天线切换配置的切换时,可以针对此天线切换配置的切换需求发出(Channel State information,CSI)测量上报请求,即该CSI测量上报请求是为实现天线切换配置的切换而发出的,以从终端获取相关信息用于执行天线切换配置的切换。
其中,CSI测量上报请求指示为CSI测量配置的测量资源,至少包括信道测量资源。在一些实施例中,CSI测量上报请求还可以包括干扰测量资源。
S602,当网络设备支持多TRP时,向终端发送信令以为终端配置天线切换的配置信息上报方式。上报方式包括:将进行CSI测量计算得出的所有天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息包括在所述CSI测量报告中进行上报。
在通信系统中,存在支持单传输接收点(Transport receive point,TRP)的网络设备和/或支持多TRP的网络设备。
在一些实施例中,当网络设备支持多TRP时,CSI测量报告可以根据如下计算得出的天线切换的配置信息获得:分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得出的参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得出的所述天线切换的配置信息。参与联合传输的各个TRP由预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定的。
当网络设备支持多TRP时,并非所有的多个TRP都参与联合传输,可以根据多TRP传输假设确定参与联合传输的多个TRP或者可以根据网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP。
在一些实施例中,例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,而网络设备通过信令配置的多TRP传输模式为结合TRP 1、TRP 2和TRP 4实现,则可以确定参与联合传输的多个TRP为TRP 1、TRP 2和TRP 4。
在一些实施例中,多TRP传输假设可以包括以下中的一种:最近调度的下行信道的多TRP传输模式;以及预定义的下行信道的多TRP传输模式。
例如,存在多TRP:TRP 1、TRP 2、TRP 3以及TRP 4,在一些实施例中,可以根据最近调度的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若最近调度的下行信道的多TRP传输模式为结合TRP 1和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 3。在另一些实施例中,可以根据预定义的下行信道的多TRP传输模式确定参与联合传输的多个TRP,例如,若预定义的下行信道的多TRP传输模式为结合TRP 1和TRP 2实现,则可以确定参与联合传输的多个TRP为TRP 1和TRP 2。若预定义的下行信道的多TRP传输模式为结合TRP 2和TRP 3实现,则可以确定参与联合传输的多个TRP为TRP 2和TRP 3。
在一些实施例中,上述下行信道可以为物理下行共享信道PDSCH、物理下行控制信道PDCCH或其他下行信道。
在确定参与联合传输的多个TRP后,可以分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息。
例如,可以以如下方式进行CSI测量:
方式一、对于参与联合传输的各个TRP,基于各个TRP对应的信道测量资源,分别进行CSI测量计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,以计算得到天线切换的配置信息。
例如,对于TRP 1,使用与TRP 1对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 1对应的天线切换的配置信息。其中,一个或多个NZP CSI-RS至少包括最近接收的NZP CSI-RS,可选地,还包括先前接收的NZP CSI-RS。
对于TRP 2,使用与TRP 2对应的一个或多个非零功率信道状态信息参考信号NZP CSI-RS作为信道测量资源,进行CSI测量计算得到与TRP 2对应的天线切换的配置信息。
方式二、基于参与联合传输的多个TRP对应的信道测量资源,进行联合CSI测量计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量以计算得到天线切换的配置信息。
方式三、结合方式一和方式二进行CSI测量计算。
在此方式下,既基于各个TRP对应的信道测量资源分别进行CSI测量又基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
例如,若已经确定参与联合传输为TRP 1和TRP 2,则分别基于TRP 1对应的信道测量资源进行CSI测量以及基于TRP 2对应的信道测量资源进行CSI测量,并且基于TRP 1和TRP 2对应的信道测量资源进行联合CSI测量,以计算得到天线切换的配置信息。
如上所述,当网络设备支持多TRP时,终端可以以多种方式进行CSI测量以计算得到天线切换的配置信息,相应地也存在多种方式对根据计算得出的天线切换的配置信息所生成的CSI测量报告进行上报,在本实施例中,网络设备可以通过信令配置来指示终端如何生成CSI测量报告进行上报。
例如,网络设备的信令配置可以指示终端如下地上报CSI测量报告:
(1)终端可以上报参与联合传输的各个TRP对应的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2分别进行CSI测量计算得出与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息后,终端可以将所计算得出的所有天线切换的配置信息包括在CSI测量报告中上报给网络设备,即将与TRP 1对应的天线切换的配置信息以及与TRP 2对应的天线切换的配置信息上报给网络设备。
(2)终端可以上报针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,在终端针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出天线切换的配置信息后,终端可以将所计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
(3)终端可以上报参与联合传输的各个TRP对应的天线切换的配置信息以及针对参与联合传输的多个TRP进行联合CSI测量计算得出的天线切换的配置信息。
例如,终端可以将与TRP 1对应的天线切换的配置信息、与TRP 2对应的天线切换的配置信息、以及针对参与联合传输的TRP 1和TRP 2进行联合CSI测量计算得出的天线切换的配置信息包括在CSI测量报告中上报给网络设备。
应当注意,上述步骤S601和S602可以以任意顺序执行,例如步骤S602可以先执行,然后执行S601;或步骤S601和S602可以同时执行。
S603,接收终端响应于所述CSI测量上报请求反馈的CSI测量报告,所述CSI测量报告包括天线切换的配置信息。
在本实施例中,网络设备从终端接收终端发送的CSI测量报告。终端在接收到CSI测量上报请求后,可以响应于该CSI测量上报请求执行CSI测量以获得包括天线切换的配置信息的CSI测量报告,并将CSI测量报告反馈给网络设备。
在一些实施例中,天线切换的配置信息包括至少一个信道质量指示(Channel Quallity Indecation,CQI)或天线切换的配置信息包括至少一组CQI和传输秩指示(Rank Indication,RI)。
终端所获得的CSI测量报告可以包括至少一个CQI,或者包括至少一组CQI/RI,具体如下所述,网络设备可以根据该CSI测量报告中包括的至少一个CQI或者至少一组CQI/RI来执行天线切换配置的切换。
S604,基于所述CSI测量报告改变终端的天线切换配置。
在本实施例中,网络设备在接收到CSI测量报告之后,可以基于该CSI测量报告中包括的天线切换的配置信息改变终端的天线切换配置。
在本公开的实施例中,网络设备在需要进行天线切换配置的切换时向终端发出CSI测量上报请求以从终端获得包括天线切换的配置信息的CSI测量报告,并根据该CSI测量报告执行天线切换配置的切换,因此,在本公开实施例的天线切换配置的切换方法中,考虑了终端侧支持的天线配置情况,从而能够更快更灵活地适应终端和业务要求支持天线配置的切换。
在一些实施例中,CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。其中期望接收天线数表示终端期望使用的接收天线的数量,期望发送天线数表示终端期望使用的发送天线的数量,以及期望切换至的天线切换配置表示终端期望使用的天线切换配置。该期望接收天线数、期望发送天线数或期望切换至的天线切换配置通常是导致较佳通信质量的接收天线数、发送天线数或天线切换配置。
在本实施例中,终端可以根据所计算的CQI得出期望接收天线数m’,以及可以根据RI计算和/或发送需求得出期望发送天线数n’,此外可以进一步确定期望切换至的天线切换配置n’Tm’R(即,n’个发送天线m’个接收天线)。终端可以将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线 切换配置n’Tm’R中的至少一个包括在CSI测量报告中上报给网络设备,从而网络设备可以根据该CSI测量报告中包括的期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI进行天线切换配置的切换。
在本公开的实施例中,通过将期望接收天线数m’、期望发送天线数n’以及期望切换至的天线切换配置n’Tm’R中的至少一个以及CQI同时上报给网络设备,从而网络设备在进行天线切换配置的切换时,可以充分考虑终端侧的期望接收天线数/期望发送天线数/期望切换至的天线切换配置。
与上述几种实施例提供的天线切换配置的切换方法相对应,本公开还提供一种天线切换配置的切换设备,由于本公开实施例提供的天线切换配置的切换设备与上述几种实施例提供的天线切换配置的切换方法相对应,因此天线切换配置的切换方法的实施方式也适用于本实施例提供的天线切换配置的切换设备,在本实施例中不再详细描述。
图7为本公开实施例提供的一种天线切换配置的切换设备的结构示意图。该设备应用于终端。
如图7所示,天线切换配置的切换设备700包括:
接收模块701,用于接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源。
测量模块702,用于进行CSI测量以获得CSI测量报告,所述CSI测量报告包括天线切换的配置信息。
发送模块703,用于将所述CSI测量报告上报给网络设备以用于改变终端的天线切换配置。
在本公开的实施例中,终端在接收到CSI测量上报请求后,将包括天线切换的配置信息的CSI测量报告上报给网络设备,使得网络设备可以基于该CSI测量报告来执行天线切换配置的切换,因此,在本公开实施例的天线切换配置的切换方法中,考虑了终端侧支持的天线配置情况,从而能够更快更灵活地适应终端和业务要求支持天线切换配置的切换。
在一些实施例中,所述天线切换的配置信息包括与天线切换配置对应的至少一个信道质量指示CQI或天线切换的配置信息包括至少一组CQI和传输秩指示RI。
在一些实施例中,所述CSI测量报告还包括以下中的至少一个:期望接收天线数;期望发送天线数;以及期望切换至的天线切换配置。
在一些实施例中,所述测量模块702被配置为对于支持单传输接收点TRP的网络设备,基于与所述TRP对应的信道测量资源进行CSI测量计算得到所述天线切换的配置信息以获得CSI测量报告。
在一些实施例中,所述测量模块702被配置为对于支持多传输接收点TRP的网络设备,基于预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP;分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量计算得到参与联合传输的各个TRP分别对应的天线切换的配置信息和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息,以获得所述CSI测量报告。
在一些实施例中,所述测量模块702被配置为根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算所述天线切换的配置信息。
在一些实施例中,所述计算规则包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
在一些实施例中,所述测量模块702被配置为接收关于上报方式的信令配置并根据所述信令配置将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中;或根据终端的预定上报方式,将参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中。
在一些实施例中,所述预定义多TRP传输假设包括以下一种:最近调度的下行信道的多TRP传输模式;预定义的下行信道的多TRP传输模式。
在一些实施例中,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
图8为本公开实施例提供的一种天线切换配置的切换设备的结构示意图。该装置应用于网络设备。
如图8所示,天线切换配置的切换设备800包括:
发送模块801,用于向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;
接收模块802,用于接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及
配置模块803,用于基于所述CSI测量报告改变终端的天线切换配置。
在本公开的实施例中,网络设备在需要进行天线切换配置的切换时向终端发出CSI测量上报请求以从终端获得包括天线切换的配置信息的CSI测量报告,并根据该CSI测量报告执行天线切换配置的切换,因此,在本公开实施例的天线切换配置的切换方法中,考虑了终端侧支持的天线配置情况,从而能够更快更灵活地适应终端和业务要求支持天线配置的切换。
在一些实施例中,所述天线切换的配置信息包括与天线切换配置对应的至少一个信道质量指示CQI或天线切换的配置信息包括至少一组CQI和传输秩指示RI(CQI/RI)。
在一些实施例中,所述CSI测量报告还包括以下中的至少一种:期望接收天线数;期望发送天线数;以及终端期望切换至的天线切换配置。
在一些实施例中,当所述网络设备支持单传输接收点TRP时,所述CSI测量报告是根据基于与所述TRP对应的信道测量资源进行CSI测量以计算得出的天线切换的配置信息获得的。
在一些实施例中,当所述网络设备支持多传输接收点TRP时,所述CSI测量报告是根据如下计算得出的天线切换的配置信息获得的:分别基于参与联合传输的各个TRP对应的信道测量资源进行CSI测量以计算得出的参与联合传输的各个TRP分别对应的天线切换的配置信息;和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得出的所述天线切换的配置信息。其中参与联合传输的多个TRP由预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定。
在一些实施例中,所述天线切换的配置信息是根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算得出的。
在一些实施例中,所述计算规则包括以下中一种:对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
在一些实施例中,所述CSI测量报告包括参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息。
在一些实施例中,所述发送模块801还被配置为:向所述终端发送信令以为终端配置天线切换的配置信息的上报方式,所述上报方式包括:将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量计算得出的天线切换的配置信息包括在所述CSI测量报告中进行上报。
在一些实施例中,所述预定义多TRP传输假设包括以下一种:最近调度的下行信道的多TRP传输模式;预定义的下行信道的多TRP传输模式。
在一些实施例中,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
根据本公开的实施例,本公开还提供了一种通信设备和一种计算机可读存储介质。
如图9所示,是根据本公开实施例的通信设备的框图。通信设备旨在表示各种形式的数字计算机,诸如,膝上型计算机、台式计算机、工作台、个人数字助理、服务器、刀片式服务器、大型计算机、和其它适合的计算机。通信设备还可以表示各种形式的移动装置,诸如,个人数字处理、蜂窝电话、智能电话、可穿戴设备和其它类似的计算装置。本文所示的部件、它们的连接和关系、以及它们的功能仅仅作为示例,并且不意在限制本文中描述的和/或者要求的本公开的实现。
如图9所示,该通信设备包括:一个或多个处理器910、存储器920,以及用于连接各部件的接口,包括高速接口和低速接口。各个部件利用不同的总线互相连接,并且可以被安装在公共主板上或者根据需要以其它方式安装。处理器可以对在通信设备内执行的指令进行处理,包括存储在存储器中或者存储器上以在外部输入/输出装置(诸如,耦合至接口的显示设备)上显示GUI的图形信息的指令。在其它实施方式中,若需要,可以将多个处理器和/或多条总线与多个存储器和多个存储器一起使用。同样,可以连接多个通信设备,各个设备提供部分必要的操作(例如,作为服务器阵列、一组刀片式服务器、或者多处理器系统)。图9中以一个处理器910为例。
存储器920即为本公开所提供的非瞬时计算机可读存储介质。其中,所述存储器存储有可由至少一 个处理器执行的指令,以使所述至少一个处理器执行本公开所提供的天线切换配置的切换方法。本公开的非瞬时计算机可读存储介质存储计算机指令,该计算机指令用于使计算机执行本公开所提供的天线切换配置的切换方法。
存储器920作为一种非瞬时计算机可读存储介质,可用于存储非瞬时软件程序、非瞬时计算机可执行程序以及模块,如本公开实施例中的天线切换配置的切换方法对应的程序指令/模块。处理器910通过运行存储在存储器920中的非瞬时软件程序、指令以及模块,从而执行服务器的各种功能应用以及数据处理,即实现上述方法实施例中的天线切换配置的切换方法。
存储器920可以包括存储程序区和存储数据区,其中,存储程序区可存储操作系统、至少一个功能所需要的应用程序;存储数据区可存储根据定位通信设备的使用所创建的数据等。此外,存储器920可以包括高速随机存取存储器,还可以包括非瞬时存储器,例如至少一个磁盘存储器件、闪存器件、或其他非瞬时固态存储器件。可选地,存储器920可选包括相对于处理器910远程设置的存储器,这些远程存储器可以通过网络连接至定位通信设备。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
通信设备还可以包括:输入装置930和输出装置940。处理器910、存储器920、输入装置930和输出装置940可以通过总线或者其他方式连接,图9中以通过总线连接为例。
输入装置930可接收输入的数字或字符信息,以及产生与定位通信设备的用户设置以及功能控制相关的键信号输入,例如触摸屏、小键盘、鼠标、轨迹板、触摸板、指示杆、一个或者多个鼠标按钮、轨迹球、操纵杆等输入装置。输出装置940可以包括显示设备、辅助照明装置(例如,LED)和触觉反馈装置(例如,振动电机)等。该显示设备可以包括但不限于,液晶显示器(LCD)、发光二极管(LED)显示器和等离子体显示器。在一些实施方式中,显示设备可以是触摸屏。
此处描述的系统和技术的各种实施方式可以在数字电子电路系统、集成电路系统、专用ASIC(专用集成电路)、计算机硬件、固件、软件、和/或它们的组合中实现。这些各种实施方式可以包括:实施在一个或者多个计算机程序中,该一个或者多个计算机程序可在包括至少一个可编程处理器的可编程系统上执行和/或解释,该可编程处理器可以是专用或者通用可编程处理器,可以从存储系统、至少一个输入装置、和至少一个输出装置接收数据和指令,并且将数据和指令传输至该存储系统、该至少一个输入装置、和该至少一个输出装置。
这些计算程序(也称作程序、软件、软件应用、或者代码)包括可编程处理器的机器指令,并且可以利用高级过程和/或面向对象的编程语言、和/或汇编/机器语言来实施这些计算程序。如本文使用的,术语“机器可读介质”和“计算机可读介质”指的是用于将机器指令和/或数据提供给可编程处理器的任何计算机程序产品、设备、和/或装置(例如,磁盘、光盘、存储器、可编程逻辑装置(PLD)),包括,接收作为机器可读信号的机器指令的机器可读介质。术语“机器可读信号”指的是用于将机器指令和/或数据提供给可编程处理器的任何信号。
为了提供与用户的交互,可以在计算机上实施此处描述的系统和技术,该计算机具有:用于向用户显示信息的显示装置(例如,CRT(阴极射线管)或者LCD(液晶显示器)监视器);以及键盘和指向装置(例如,鼠标或者轨迹球),用户可以通过该键盘和该指向装置来将输入提供给计算机。其它种类的装置还可以用于提供与用户的交互;例如,提供给用户的反馈可以是任何形式的传感反馈(例如,视觉反馈、听觉反馈、或者触觉反馈);并且可以用任何形式(包括声输入、语音输入或者、触觉输入)来接收来自用户的输入。
可以将此处描述的系统和技术实施在包括后台部件的计算系统(例如,作为数据服务器)、或者包括中间件部件的计算系统(例如,应用服务器)、或者包括前端部件的计算系统(例如,具有图形用户界面或者网络浏览器的用户计算机,用户可以通过该图形用户界面或者该网络浏览器来与此处描述的系统和技术的实施方式交互)、或者包括这种后台部件、中间件部件、或者前端部件的任何组合的计算系统中。可以通过任何形式或者介质的数字数据通信(例如,通信网络)来将系统的部件相互连接。通信网络的示例包括:局域网(LAN)、广域网(WAN)和互联网。
计算机系统可以包括客户端和服务器。客户端和服务器一般远离彼此并且通常通过通信网络进行交互。通过在相应的计算机上运行并且彼此具有客户端-服务器关系的计算机程序来产生客户端和服务器的关系。
应该理解,可以使用上面所示的各种形式的流程,重新排序、增加或删除步骤。例如,本公开中记载的各步骤可以并行地执行也可以顺序地执行也可以不同的次序执行,只要能够实现本公开公开的技术方案所期望的结果,本文在此不进行限制。
上述具体实施方式,并不构成对本公开保护范围的限制。本领域技术人员应该明白的是,根据设计 要求和其他因素,可以进行各种修改、组合、子组合和替代。任何在本公开的精神和原则之内所作的修改、等同替换和改进等,均应包含在本公开保护范围之内。

Claims (27)

  1. 一种天线切换配置的切换方法,其特征在于,所述方法应用于终端,所述方法包括:
    接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;
    进行CSI测量以获得CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及
    向网络设备上报所述CSI测量报告。
  2. 如权利要求1所述的方法,其特征在于,所述天线切换的配置信息包括与天线切换配置对应的:
    至少一个信道质量指示CQI;或
    至少一组CQI和传输秩指示RI。
  3. 如权利要求1或2所述的方法,其特征在于,所述CSI测量报告还包括以下中的至少一个:
    期望接收天线数;
    期望发送天线数;以及
    期望切换至的天线切换配置。
  4. 如权利要求1-3中任一项所述的方法,其特征在于,所述进行CSI测量以获得CSI测量报告包括:
    对于支持单传输接收点TRP的网络设备,基于与所述TRP对应的信道测量资源进行CSI测量计算得到所述天线切换的配置信息以获得所述CSI测量报告。
  5. 如权利要求1-3中任一项所述的方法,其特征在于,所述进行CSI测量以获得CSI测量报告包括:
    对于支持多传输接收点TRP的网络设备,基于预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定参与联合传输的多个TRP;
    分别基于参与联合传输的各个TRP对应的信道测量资源,进行CSI测量计算得到参与联合传输的各个TRP分别对应的天线切换的配置信息和/或基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量计算得到所述天线切换的配置信息,以获得所述CSI测量报告。
  6. 如权利要求4或5所述的方法,其特征在于,所述计算得到所述天线切换的配置信息包括:
    根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算所述天线切换的配置信息。
  7. 如权利要求6所述的方法,其特征在于,所述计算规则包括以下中一种:
    对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
  8. 如权利要求5所述的方法,其特征在于,所述获得所述CSI测量报告包括:
    接收关于上报方式的信令配置并根据所述信令配置将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中;或
    根据终端的预定上报方式,将参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中。
  9. 如权利要求5所述的方法,其特征在于,所述预定义多TRP传输假设包括以下一种:
    最近调度的下行信道的多TRP传输模式;
    预定义的下行信道的多TRP传输模式。
  10. 如权利要求9所述的方法,其特征在于,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
  11. 一种天线切换配置的切换方法,其特征在于,所述方法应用于网络设备,所述方法包括:
    向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;
    接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及
    基于所述CSI测量报告改变终端的天线切换配置。
  12. 如权利要求11所述的方法,其特征在于,所述天线切换的配置信息包括与天线切换配置对应的:
    至少一个信道质量指示CQI;或
    至少一组CQI和传输秩指示RI。
  13. 如权利要求11或12所述的方法,其特征在于,所述CSI测量报告还包括以下中的至少一个:
    终端期望接收天线数;
    终端期望发送天线数;以及
    终端期望切换至的天线切换配置。
  14. 如权利要求11-13中任一项所述的方法,其特征在于,当所述网络设备支持单传输接收点TRP时,所述CSI测量报告是根据基于与所述TRP对应的信道测量资源进行CSI测量以计算得出的天线切换的配置信息获得的。
  15. 如权利要求11-13中任一项所述的方法,其特征在于,当所述网络设备支持多传输接收点TRP时,所述CSI测量报告是根据如下计算得出的天线切换的配置信息获得的:
    分别基于参与联合传输的各个TRP对应的信道测量资源,进行CSI测量以计算得出的参与联合传输的各个TRP分别对应的天线切换的配置信息;和/或
    基于参与联合传输的多个TRP对应的信道测量资源进行联合CSI测量以计算得出的所述天线切换的配置信息;
    其中参与联合传输的多个TRP由预定义多TRP传输假设或网络设备通过信令配置的多TRP传输模式确定。
  16. 如权利要求14或15所述的方法,其特征在于,所述天线切换的配置信息是根据所述终端支持的天线切换能力的多种接收天线数目和计算规则计算得出的。
  17. 如权利要求16所述的方法,其特征在于,所述计算规则包括以下中一种:
    对于所述终端支持的不同天线切换能力对应的一组不同接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于不大于所述终端的当前部分带宽BWP上的天线切换能力配置对应的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于不大于预设数量的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于预先配置或指定的所述终端支持的天线切换能力的一种或多种接收天线数目,分别计算对应不同接收天线数目的天线切换的配置信息;
    对于与预定义切换策略对应的所述终端支持的天线切换能力的接收天线数目,计算天线切换的配置信息。
  18. 如权利要求15所述的方法,其特征在于,所述CSI测量报告包括参与联合传输的一个或多个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息。
  19. 如权利要求18所述的方法,其特征在于,还包括:
    向所述终端发送信令以为终端配置天线切换的配置信息的上报方式,所述上报方式包括:将参与联合传输的每个TRP对应的天线切换的配置信息和/或联合CSI测量得出的天线切换的配置信息包括在所述CSI测量报告中进行上报。
  20. 如权利要求15所述的方法,其特征在于,所述预定义多TRP传输假设包括以下一种:
    最近调度的下行信道的多TRP传输模式;
    预定义的下行信道的多TRP传输模式。
  21. 如权利要求20所述的方法,其特征在于,所述下行信道为物理下行共享信道PDSCH或物理下行控制信道PDCCH。
  22. 一种天线切换配置的切换装置,其特征在于,所述装置应用于终端,所述装置包括:
    接收模块,用于接收与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;
    测量模块,用于进行CSI测量以获得CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及
    发送模块,用于向网络设备上报所述CSI测量报告。
  23. 一种天线切换配置的切换装置,其特征在于,所述装置应用于网络设备,所述装置包括:
    发送模块,用于向终端发送与天线切换配置的切换相关的信道状态信息CSI测量上报请求,其中,所述CSI测量上报请求用于指示CSI测量配置的测量资源;
    接收模块,用于接收终端发送的CSI测量报告,所述CSI测量报告包括天线切换的配置信息;以及
    配置模块,用于基于所述CSI测量报告改变终端的天线切换配置。
  24. 一种通信设备,其中,包括:收发器;存储器;处理器,分别与所述收发器及所述存储器连接,配置为通过执行所述存储器上的计算机可执行指令,控制所述收发器的无线信号收发,并能够实现权利要求1-10任一项所述的方法。
  25. 一种通信设备,其中,包括:收发器;存储器;处理器,分别与所述收发器及所述存储器连接,配置为通过执行所述存储器上的计算机可执行指令,控制所述收发器的无线信号收发,并能够实现权利要求11-21任一项所述的方法。
  26. 一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现权利要求1-10任一项所述的方法。
  27. 一种计算机存储介质,其中,所述计算机存储介质存储有计算机可执行指令;所述计算机可执行指令被处理器执行后,能够实现权利要求11-21任一项所述的方法。
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