WO2021027660A1 - Procédé de radiocommunication et appareil de communication - Google Patents

Procédé de radiocommunication et appareil de communication Download PDF

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Publication number
WO2021027660A1
WO2021027660A1 PCT/CN2020/107155 CN2020107155W WO2021027660A1 WO 2021027660 A1 WO2021027660 A1 WO 2021027660A1 CN 2020107155 W CN2020107155 W CN 2020107155W WO 2021027660 A1 WO2021027660 A1 WO 2021027660A1
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WIPO (PCT)
Prior art keywords
report
network device
indication information
rat
terminal device
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PCT/CN2020/107155
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English (en)
Chinese (zh)
Inventor
石小丽
奥鲁佛松亨里克
张宏卓
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华为技术有限公司
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Publication of WO2021027660A1 publication Critical patent/WO2021027660A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H04W36/125—Reselecting a serving backbone network switching or routing node involving different types of service backbones

Definitions

  • the embodiments of the present application relate to the field of communication, and more specifically, to a method and communication device for wireless communication.
  • the base station (envolved node base station, eNB) of the long term evolution (LTE) system can evolve into the next generation LTE base station (Next Generation eNB, ng-eNB).
  • the ng-eNB can be connected to the 5th generation core network (5GC), allowing user equipment (UE) to access 5GC through the ng-eNB, and the ng-eNB through the 4G air interface access technology E-UTRA Provide wireless transmission resources for the UE, and provide 5GC services for the UE.
  • this ng-eNB can also be connected to the evolved packet core (EPC) of the 4th generation mobile communication technology (4G), so that the UE can access the EPC through the ng-eNB.
  • EPC evolved packet core
  • 4G 4th generation mobile communication technology
  • the ng-eNB can only be connected to 5GC or EPC, or the ng-eNB can be connected to 5GC and EPC at the same time.
  • a new air interface access technology is defined in the 5th generation mobile communication technology (5GS), which is called new radio (NR).
  • Terminal equipment can access 5GC through NR base station gNB.
  • the access network (radio access network, RAN) of the 5G system may be called next generation-RAN (NG-RAN).
  • NG-RAN next generation-RAN
  • the nodes of NG-RAN include ng-eNB and gNB.
  • NG-RAN contains multiple radio access technologies (RAT), for example, E-UTRA and NR connected to 5GC
  • RAT radio access technologies
  • E-UTRA radio access technologies
  • NR radio access technologies
  • RLF radio link failure
  • SON self-organization network
  • MDT minimization of drive tests
  • the present application provides a wireless communication method and communication device, which can avoid report loss.
  • a wireless communication method is provided.
  • the method can be executed by a terminal device or a module (such as a chip) configured in the terminal device.
  • the following takes the method executed by the terminal device as an example for description.
  • the method includes: a terminal device generates first indication information, the first indication information is used to indicate whether a first report is available, and the first report is a report recorded by the terminal device under a first radio access technology RAT;
  • the terminal device sends first indication information to the target network device, and the target network device is a network device that uses a second RAT.
  • the “report recorded under the first radio access technology RAT” may also be understood as a report corresponding to the first RAT, or in other words, a report of the first RAT.
  • the "report recorded under the first radio access technology RAT" can be understood as the first report is a report recorded (or generated or obtained) by the terminal device under the service of the source network device using the first RAT.
  • reporting recorded under the first radio access technology RAT may be understood as the first report is a report recorded or generated when the terminal device uses the first RAT to communicate.
  • “report recorded under the first radio access technology RAT” can be understood as the first report is an abnormality or failure of the link (or connection) based on the first RAT between the terminal device and the source network device (For example, when a wireless link failure occurs) the report recorded by the terminal device.
  • the present application can be applied to a scenario where a terminal device moves or switches from a cell of one RAT to a cell of another RAT, and the target network device may be a network device that provides a target cell to be moved or switched to.
  • the first RAT may include the RAT used by the NG-eNB, and the second RAT may include the RAT used by the eNB.
  • the second RAT may include the RAT used by the NG-eNB, and the first RAT may include the RAT used by the eNB.
  • the first RAT may include the RAT used by the NG-eNB, and the second RAT may include the RAT used by the gNB.
  • the second RAT may include the RAT used by the NG-eNB, and the first RAT may include the RAT used by the gNB.
  • the first RAT may include a RAT used by an eNB
  • the second RAT may include a RAT used by a gNB
  • the second RAT may include the RAT used by the eNB
  • the first RAT may include the RAT used by the gNB.
  • the first indication information is sent to the network device through the terminal device, the first indication information includes information about whether the first report is available, so that the network device determines whether to support the first report according to the first indication information, avoiding the network device If the first report is requested when the RAT corresponding to the first report is not known, but the first report cannot be interpreted, resulting in the loss of the first report, it is ultimately ensured that the performance of SON and MDT will not be affected by the loss of the report recorded by the terminal device .
  • the first indication information in this application may include a cell, and the cell may indicate whether the report of the first RAT is available.
  • the first indication information may be NR RLF report available (NRrlf-InfoAvailable).
  • the first indication information in this application may include at least two information elements, and the one information element indicates the identity of the first RAT, and the other information element indicates whether the report is available.
  • the first RAT If the report is an NR, and the report is an RLF report, when the report is available, one information element in the first indication information may be an NR identifier, and the other information element may be an RLF report available (rlf-InfoAvailable). That is, in this case, the first indication information may include the identification (or identification information) of the first RAT.
  • the first RAT and the second RAT may be a combination of any two RATs: NR for 5G systems, E-UTRA for LTE systems, and E-UTRA for 3G systems.
  • NR for 5G systems
  • E-UTRA for LTE systems
  • E-UTRA for 3G systems
  • UTRA or WLAN may be a combination of any two RATs: NR for 5G systems, E-UTRA for LTE systems, and E-UTRA for 3G systems.
  • the first RAT may be any one of the following: 5G, NR, LTE, E-UTRA, 3G, UTRA or WLAN.
  • the first report includes at least one of the following reports: a radio link failure report, a connection establishment failure report, a random access report, and a log measurement report, Secondary base station failure report, UE movement history information, idle state measurement report or flight route report.
  • the first indication information includes at least one of the following indications: RLF report available indication (for example, RLF-infoavailable), connection establishment failure report available indication (for example, connEstFailInfoAvailable), RACH report available indication (e.g. RACH-infoavailable), log measurement report available indicator (e.g. logMeasAvailable), secondary base station connection failure report available indicator (e.g. SCGfailureinfoavailable), idle mode measurement report available indicator (e.g. idleMeasAvailable), flight route report Available indication (for example, flightPathInfoAvailable), movement history information available indication (for example, mobilityHistoryAvail).
  • RLF report available indication for example, RLF-infoavailable
  • connection establishment failure report available indication for example, connEstFailInfoAvailable
  • RACH report available indication e.g. RACH-infoavailable
  • log measurement report available indicator e.g. logMeasAvailable
  • secondary base station connection failure report available indicator e.g
  • the first indication information is carried in a newly defined air interface message, or the first indication information is carried in an air interface message in the prior art and sent to The target network device, for example, the first indication information is carried in any one of the following air interface messages: RRC reestablishment complete message (RRCReestablishmentComplete), RRC recovery complete message (RRCResumeComplete), RRC establishment complete message (RRCSetupComplete), or RRC Reconfiguration complete message (RRCReconfigurationComplete).
  • the first report includes identification information of the first RAT.
  • the first indication information uses a "true” and/or "false” manner to indicate whether the first report is available. For example, when the value carried in the first indication information is true, the first indication information indicates that the first report is available; when the value carried in the first indication information is false, the first indication information indicates that the first report is not available .
  • the first RAT is NR
  • the second RAT is LTE.
  • the terminal device sends an RLF report to the target network device using the second RAT.
  • the first indication information can be expressed as NRrlf-InfoAvailable, where "NR" indicates that the report is a report of NR technology, and "rlf" indicates that the available information is indicated as RLF
  • the reported available information indicates that the target network device determines whether the RLF report of the NR technology is available after receiving the first indication information (ie, NRrlf-InfoAvailable).
  • the NRrlf-InfoAvailable is carried in the RRC Connection Reconfiguration Complete message RRCConnectionReconfigurationComplete, it can be expressed as:
  • the first indication information indicates whether the first report is available through the enumeration function "ENUMERATED” enumerating "true” and/or “false".
  • the first indication information may also indicate whether the first report is available through the selection function "CHOICE” or the boolean value "BOOLEAN” Whether the first report is available, but this application is not limited to this.
  • the terminal device receives second indication information sent by the target network device, and the second indication information is used to indicate whether the target network device requests to send The first report:
  • the terminal device does not send the first report if the result indicated by the second indication information is no.
  • the target network device determines whether the terminal device can provide the report of the first RAT according to the received first indication information, and sends the request information according to the processing capability and demand of the network device to the first RAT, and the terminal device responds to the network
  • the first report is sent or not sent at the request of the device, so the loss of the first report can be effectively avoided.
  • the second indication information includes identification information of the first RAT.
  • the first report is the RLF report of NR, that is, the first RAT is NR
  • the terminal device passes the second indication information
  • the identification information (ie, NR) of the first RAT in determines whether the network device requests the terminal device to send the first report.
  • the second indication information sent by the target network device includes the request information of the RACH report and the request information of the RLF report, and when the first RAT is 5G, the second indication information may be expressed as:
  • the second indication information sent by the target network device includes the request information of the RLF report of LTE and the request information of the RLF report of NR, and the second indication information may be expressed as:
  • the second indication information may indicate whether the network device requests a report through the Boolean value "BOOLEAN”, and the second indication information may also indicate whether the network device requests a report through an enumeration function or a selection function, but the application is not limited to this.
  • the terminal device can determine the RAT corresponding to the report requested by the network device, so that the terminal device Reaching a consensus with the RAT corresponding to the requested report by the network device avoids the loss of the report due to the wrong transmission of the terminal device.
  • the terminal device receives third indication information sent by the target network device, where the third indication information is used to indicate whether the target network device supports all Reports of RATs other than the second RAT.
  • whether the target network device supports the report of a RAT other than the second RAT can be understood as: whether the target network device can handle the report of a RAT other than the second RAT.
  • whether the target network device can handle reports of RATs other than the second RAT can be understood as: whether the target network device can receive or forward reports of RATs other than the second RAT.
  • whether the target network device can handle reports of RATs other than the second RAT can be understood as: whether the target network device can parse reports of RATs other than the second RAT.
  • the report of a RAT other than the second RAT may be the first report.
  • the terminal device sends the first report when the result indicated by the third indication information is yes; the terminal device If the result indicated by the third indication information is no, the first report is not sent.
  • the terminal device determines whether the network device supports the report of the first RAT according to the capability information sent by the target network device, and sends the first report if it can receive the report of the first RAT, but cannot receive the report of the first RAT In the case of, the first report is not sent, which avoids the situation that the first report is lost after the terminal device sends the first report that the network device cannot interpret to the network device.
  • the terminal device receives the third indication information before sending the first indication information, and the terminal device indicates that the result of the third information is yes In the case of sending the first indication information; if the result indicated by the third information is no, the terminal device does not send the first indication information, or sends the first indication information, so The first indication information indicates that the first report is not available.
  • the terminal device determines whether the network device supports the report of the first RAT according to the capability information sent by the target network device, and determines whether to send the first indication information of whether the first report is available to the network device, avoiding the network device when the first report is available. After the device requested to send the report, the network device could not interpret it, resulting in the loss of the first report.
  • the third indication information is included in the target network device capability information sent by the target network device to the terminal device.
  • the terminal device if the terminal device does not receive the third indication information sent by the target network device within a preset time period, the terminal device does not send the In the first report, the third indication information is used to indicate whether the target network device supports a report of a RAT other than the second RAT.
  • the preset time period may be in the following two forms.
  • Form 1 The preset period is a period of time before the terminal device receives the first message.
  • the first message may be a message preset by the system or prescribed by a protocol for prohibiting the terminal device from sending the first report to the target network device.
  • the first message may be an RRC connection reconfiguration complete message, an RRC reestablishment complete message, or a physical layer downlink control information.
  • the first message may also be a message used to carry third indication information.
  • the terminal device determines that the first message does not include the third indication information after receiving the first message, the terminal device will not Sending the first report to the target network device. It can also be said that when the terminal device determines that the first message does not include the third indication information after receiving the first message, the terminal device considers that the target network device does not support the first report, and The terminal device does not send the first report.
  • the starting point of the preset time period may be the time point when the terminal device searches for the target network device (for example, the initial access signal of the target network device is searched) or the starting point of the preset time period may be the establishment between the terminal device and the target network device
  • the time point of the RRC connection for example, the RRC establishment complete message is received
  • the first message may be an RRC reconfiguration complete message (RRC Reconfiguration Complete).
  • RRC Reconfiguration Complete RRC Reconfiguration Complete
  • the terminal device receives the RRC reconfiguration complete message and determines that the RRC reconfiguration complete message does not include the third indication information, the terminal device considers The network device does not have the ability to receive the first report, and therefore, will not send the first report to the network device.
  • the preset time period may be indicated by a timer or a counter, the preset time period is a period of time from when the timer is started to the time before the timer expires or expires, or the preset time period is from when the counter starts to The time interval for the counter to zero or reach the maximum value.
  • the network device cannot receive the first report by default, and does not send the first report to the network device, which prevents the network device from receiving the first report. Circumstances that caused the loss of the first report when reporting.
  • the third indication information includes identification information of the RAT corresponding to the report supported by the target network device.
  • the third indication information includes version information of the target network device.
  • the terminal device determines whether the target network device supports the first report according to the capabilities of the network device corresponding to the pre-stored version information.
  • the third indication information includes type information of a report supported by the target network device.
  • the third indication information includes identification information of the target network device.
  • the method further includes: the terminal device sends fourth indication information to the target network device, where the fourth indication information is used to indicate whether the second report is Available, the second report is a report recorded by the terminal device under the second RAT.
  • the “report recorded under the second RAT” may also be understood as a report corresponding to the second RAT, or in other words, a report of the second RAT.
  • the “report recorded under the second RAT” may be understood as the second report is a report recorded by the terminal device under the service of the target network device using the second RAT.
  • reporting recorded under the second RAT may be understood as the second report is a report recorded or generated by the terminal device when the terminal device uses the second RAT to communicate.
  • reporting recorded under the second RAT can be understood as the second report is that the link (or connection) based on the second RAT between the terminal device and the target network device has abnormality or failure (for example, occurrence of The report recorded by the terminal device when the wireless link fails).
  • the first indication information and the fourth indication information may be carried in the same message or packet. That is, the first indication information and the fourth indication information can be sent synchronously.
  • the first indication information and the fourth indication information may be carried in different messages or packets. That is, the first instruction information and the fourth instruction information can be sent asynchronously.
  • a method is provided, which can be executed by a network device or a module (such as a chip) configured in the network device.
  • the following takes the method executed by the network device as an example for description.
  • the method includes: a target network device receives first indication information sent by a terminal device, where the first indication information is used to indicate whether a first report is available, and the first report is a first wireless access technology recorded by the terminal device For the RAT report, the target network device is a network device that adopts a second RAT; the target network device determines whether to support the first report according to the identification information of the first RAT.
  • the first RAT and the second RAT may be a combination of any two of the following RATs: 5G system NR, LTE system E-UTRA, 3G system UTRA or WLAN.
  • the first RAT may be any one of the following: 5G, NR, LTE, E-UTRA, 3G, UTRA or WLAN.
  • the first report includes at least one of the following reports: radio link failure report, connection establishment failure report, random access report, log measurement report, Secondary base station failure report, UE movement history information, idle state measurement report or flight route report.
  • the first indication information includes at least one of the following indications: RLF report available indication (for example, RLF-infoavailable), connection establishment failure report available indication (for example, connEstFailInfoAvailable), RACH report available indication (e.g. RACH-infoavailable), log measurement report available indicator (e.g. logMeasAvailable), secondary base station connection failure report available indicator (e.g. SCGfailureinfoavailable), idle mode measurement report available indicator (e.g. idleMeasAvailable), flight route report Available indication (for example, flightPathInfoAvailable), movement history information available indication (for example, mobilityHistoryAvail).
  • RLF report available indication for example, RLF-infoavailable
  • connection establishment failure report available indication for example, connEstFailInfoAvailable
  • RACH report available indication e.g. RACH-infoavailable
  • log measurement report available indicator e.g. logMeasAvailable
  • secondary base station connection failure report available indicator e.g
  • the first indication information is carried in a newly defined air interface message, or the first indication information is carried in an air interface message in the prior art and sent to The target network device, for example, the first indication information is carried in any one of the following air interface messages: RRC reestablishment complete message (RRCReestablishmentComplete), RRC recovery complete message (RRCResumeComplete), RRC establishment complete message (RRCSetupComplete), or RRC Reconfiguration complete message (RRCReconfigurationComplete).
  • the first report includes identification information of the first RAT.
  • the first indication information uses a "true” and/or “false” manner to indicate whether the first report is available.
  • the target network device sends second indication information to the terminal device, and the second indication information is used to indicate whether the target network device requests the The terminal device sends the first report.
  • the target network device receives the first report sent by the terminal device when the result indicated by the second indication information is yes;
  • the target network device does not receive the first report when the result indicated by the second indication information is no.
  • the second indication information includes identification information of the first RAT.
  • the target network device sends third indication information to the terminal device, and the third indication information is used to indicate whether the target network device supports the Reports of RATs other than the second RAT.
  • the target network device sends the first report when the result indicated by the third indication information is yes; the terminal device is in the If the result indicated by the third indication information is no, the first report is not sent.
  • the target network device sends the third indication information before receiving the first indication information, and the target network device transmits the result indicated by the third information If yes, receive the first indication information sent by the terminal device; if the result indicated by the third information is no, the target network device does not receive the first indication information.
  • the third indication information is included in the target network device capability information sent by the target network device to the terminal device.
  • the target network device if the target network device does not send the third indication information within a preset time period, the target network device does not receive the first report, so The third indication information is used to indicate whether the target network device supports reporting of RATs other than the second RAT.
  • the preset time limit may include, but is not limited to, the form 1 and form 2 mentioned in the first aspect.
  • the third indication information includes identification information of the RAT corresponding to the report supported by the target network device.
  • the third indication information includes version information of the target network device.
  • the terminal device determines whether the target network device supports the report of the first RAT according to the capability of the network device corresponding to the pre-stored version information.
  • the third indication information includes report type information supported by the target network device.
  • the third indication information includes identification information of the target network device.
  • a method is provided.
  • the method can be executed by a terminal device or a module (such as a chip) configured in the terminal device.
  • the following takes the method executed by the terminal device as an example for description.
  • the method includes: a terminal device generates a first report, the first report being a report of the first radio access technology RAT recorded by the terminal device; the terminal device receives capability indication information sent by a target network device, the target network device It is a network device that adopts a second RAT, and the capability indication information is used to indicate whether the target network device supports a report of a RAT other than the second RAT; the terminal device determines whether to send a report based on the result indicated by the capability indication information The first report.
  • the terminal device determines whether the network device supports the report of the first RAT according to the capability information sent by the target network device, so that the terminal device and the network device can reach a consensus on the ability of the network device to receive the report, and avoid the terminal device being unable to When the first report is interpreted, the first report is sent to the network device and the first report is lost.
  • the method further includes: the terminal device sends report availability indication information when the result indicated by the capability indication information is yes; the terminal device If the result indicated by the capability indication information is no, the report availability indication information is not sent, or the report availability indication information is sent, and the report availability indication information indicates that the first report is not available; The report availability indication information is used to indicate whether the first report is available.
  • the report availability indication information includes identification information of the first RAT
  • the terminal device determines whether the network device supports the report of the first RAT according to the capability information sent by the target network device, and informs the network device whether the recorded first report is available when the network device supports the first report, and the network device does not support it.
  • the first report is not sent to the network device to indicate that the first report is available, or the network device is notified that the first report is unavailable, thereby avoiding the loss of the first report due to the network device’s inability to interpret the report after the network device requests to send the report happening.
  • the terminal device if the terminal device does not receive the capability indication information sent by the target network device before a preset time limit, the terminal device does not send the The first report, the capability indication information is used to indicate whether the target network device supports the report of a RAT other than the second RAT.
  • the preset time limit may include, but is not limited to, the form 1 and form 2 mentioned in the first aspect above.
  • the third indication message mentioned in the form 1 and form 2 can be changed by the Capability indication information replacement.
  • the network device cannot receive the first report by default, and does not send the first report to the network device, which prevents the network device from receiving the first report. Circumstances that caused the loss of the first report when reporting.
  • the capability indication information includes identification information of the RAT corresponding to the report supported by the target network device.
  • the capability indication information includes version information of the target network device.
  • the terminal device determines whether the target network device supports the report of the first RAT according to the capability of the network device corresponding to the pre-stored version information.
  • the capability indication information includes report type information supported by the target network device.
  • the capability indication information includes identification information of the target network device.
  • the terminal device receives request information sent by the target network device, and the request information is used to indicate whether the target network device requests to send the first Report; the terminal device sends the first report if the result indicated by the request indication information is yes; the terminal device does not send the first report if the result indicated by the request indication information is no The first report.
  • the target network device determines whether the report corresponding to its receiving capability is available according to the received report availability indication information, and sends the request information according to demand, and the terminal device responds to the request of the network device to send or not send the first report, so it can Effectively avoid the loss of the first report.
  • the request indication information includes identification information of the first RAT.
  • the first report includes identification information of the first RAT.
  • the first report includes at least one of the following reports: radio link failure report, connection establishment failure report, random access report, log measurement report, Secondary base station failure report, UE movement history information, idle state measurement report or flight route report.
  • the method can be executed by a network device or a module (such as a chip) configured in the network device.
  • the following takes the method executed by the network device as an example for description.
  • the method includes: capability indication information sent by a target network device to a terminal device, the target network device is a network device using a second RAT, and the capability indication information is used to indicate whether the target network device supports the second RAT Reports other than RATs.
  • the target network device receives the report availability indication information sent by the terminal device, and the report availability indication information is used to indicate whether the first report is available; If the result indicated by the indication information is no, the report availability indication information indicates that the first report is not available.
  • the report available indication information includes identification information of the first RAT
  • the network device if the network device does not send capability indication information before a preset time limit, the network device does not receive the first report, and the capability indication The information is used to indicate whether the target network device supports reporting of RATs other than the second RAT.
  • the preset time limit may include, but is not limited to, the form 1 and form 2 mentioned in the first aspect above.
  • the third indication message mentioned in the form 1 and form 2 can be changed by the Capability indication information replacement.
  • the capability indication information includes identification information of the RAT corresponding to the report supported by the target network device.
  • the capability indication information includes version information of the target network device.
  • the terminal device determines whether the target network device supports the report of the first RAT according to the capability of the network device corresponding to the pre-stored version information.
  • the capability indication information includes report type information supported by the target network device.
  • the capability indication information includes identification information of the target network device.
  • the target network device sends request information to the terminal device, and the request information is used to indicate whether the target network device requests the terminal device to send The first report; the network device receives the first report sent by the terminal device when the result indicated by the request information is yes; the network device receives the first report sent by the terminal device; In the case of not receiving the first report.
  • the request information includes identification information of the first RAT.
  • the first report includes identification information of the first RAT.
  • the first report includes at least one of the following reports: a radio link failure report, a connection establishment failure report, a random access report, and a log measurement report, Secondary base station failure report, UE movement history information, idle state measurement report or flight route report.
  • a method of wireless communication is provided.
  • the method can be executed by a terminal device or a module (such as a chip) configured in the terminal device.
  • the following takes the method executed by the terminal device as an example for description.
  • the method includes: a terminal device generates a first report, the first report being a report of a first radio access technology RAT recorded by the terminal device; the terminal device does not receive the target network device within a preset time period In the case of sent capability indication information, the terminal device does not send the first report, and the capability indication information is used to indicate whether the target network device supports reports of RATs other than the second RAT.
  • the network device is a network device that uses the second RAT.
  • the preset time limit may include, but is not limited to, the form 1 and form 2 mentioned in the first aspect above.
  • the third indication message mentioned in the form 1 and form 2 can be changed by the Capability indication information replacement.
  • the network device cannot receive the first report by default, and does not send the first report to the network device, which prevents the network device from receiving the first report. Circumstances that caused the loss of the first report when reporting.
  • the terminal device in some implementation manners of the fifth aspect, in the case that the terminal device receives the capability information sent by the target network device within a preset time limit, the terminal device adopts the first aspect or the first aspect The three aspects of the same implementation method will not be repeated here.
  • a method of wireless communication is provided.
  • the method can be executed by a network device or a module (such as a chip) configured in the network device.
  • the following takes the method executed by the network device as an example for description.
  • the method includes: when the target network device supports the report of a RAT other than the second RAT, sending capability indication information to the terminal device within a preset time period, the capability indication information being used to indicate whether the target network device supports For reports of a RAT other than the second RAT, the target network device is a network device that uses the second RAT.
  • the target network device when the target network device cannot process the report of a RAT other than the second RAT, it does not send capability indication information to the terminal device within a preset time period, where the capability indication information is used to indicate whether the target network device Supports reporting of RATs other than the second RAT, and the target network device is a network device that uses the second RAT.
  • the preset time limit may include, but is not limited to, the form 1 and form 2 mentioned in the first aspect above.
  • the third indication message mentioned in the form 1 and form 2 can be changed by the Capability indication information replacement.
  • the target network device in some implementation manners of the sixth aspect, in the case of the capability information sent by the target network device within a preset time limit, the target network device adopts the same execution manner as the second aspect or the third aspect , I won’t repeat it here.
  • a communication device including each method used to implement the first, third, or fifth aspect, and any one of the first, third, or fifth aspects. Module or unit.
  • a communication device including a processor.
  • the processor is coupled with the memory, and may be used to execute the method in the first aspect, the third aspect, or the fifth aspect, and any one of the possible implementation manners of the first, third, or fifth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a terminal device.
  • the communication interface may be a transceiver or an input/output interface.
  • the communication device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device which includes various modules or units for executing the method in the second aspect, the fourth aspect, or the sixth aspect, and any one of the second aspect or the fourth aspect.
  • a communication device including a processor.
  • the processor is coupled with the memory, and can be used to execute instructions in the memory to implement the method in any one of the foregoing second aspect or fourth aspect and the second aspect or fourth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip configured in a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive signals through the input circuit and transmit signals through the output circuit, so that the first, third, or fifth aspects of the processor and the first, third, or fifth aspects are The method in any possible implementation of the aspect.
  • the foregoing processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by the transmitter
  • the circuit can be the same circuit, which is used as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, receive signals through a receiver, and transmit signals through a transmitter to execute any one of the first to fourth aspects and any one of the first to fourth aspects.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • sending instruction information may be a process of outputting instruction information from the processor
  • receiving capability information may be a process of the processor receiving input capability information.
  • the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the above-mentioned thirteenth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; When implemented, the processor may be a general-purpose processor, which is implemented by reading software codes stored in a memory.
  • the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), which when the computer program is executed, causes a computer to execute the first aspect to The fourth aspect and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also called code, or instruction
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes the first aspect to The fourth aspect and the method in any one of the possible implementation manners of the first to fourth aspects.
  • a computer program also called code, or instruction
  • a communication system including the aforementioned network equipment and terminal equipment.
  • Figure 1 is a schematic architecture diagram of the communication system of the present application.
  • Fig. 2 is a schematic flowchart of the wireless communication method of the present application.
  • Fig. 3 is another schematic flowchart of the wireless communication method of the present application.
  • Fig. 4 is another schematic flowchart of the wireless communication method of the present application.
  • Fig. 5 is a schematic block diagram of an example of a wireless communication device of the present application.
  • Fig. 6 is a schematic structural diagram of an example of a terminal device of the present application.
  • Fig. 7 is a schematic structural diagram of an example of a network device of the present application.
  • Fig. 8 is another schematic architecture diagram of the communication system of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • LTE frequency division duplex FDD
  • LTE time division Duplex time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • V2X can include vehicle to network (V2N) and vehicle to vehicle (V2V) ), Vehicle to Infrastructure (V2I), Vehicle to Pedestrian (V2P), etc.
  • LTE-V Long Term Evolution-Vehicle
  • LTE-V Internet of Vehicles
  • MTC Machine Communication
  • IoT Internet of Things
  • FIG. 1 is a schematic diagram of a wireless communication system 100 applicable to an embodiment of the present application.
  • the wireless communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1, and the wireless communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. . Both network equipment and terminal equipment can be equipped with multiple antennas, and the network equipment and terminal equipment can communicate using multiple antenna technology.
  • Fig. 8 is a schematic system architecture diagram of the communication system of the present application.
  • the eNB of the LTE system can be connected to the evolved packet core (EPC) of 4G through the S1-MME and S1-U interfaces, and provide wireless transmission resources for the UE through the 4G air interface access technology E-UTRAN, and provide the UE with EPC services.
  • the S1-MME interface is a control plane interface between a mobility management entity (MME) and E-UTRAN.
  • MME mobility management entity
  • S1-U interface is a user plane interface between a serving gateway (S-GW) and E-UTRAN.
  • S-GW serving gateway
  • the gNB in the NR system can be connected to the 5th generation core network (5GC) through NG-C and NG-U interfaces, and provides wireless access to user equipment (UE) through 5G air interface access technology NR For transmission resources, the UE does not provide 5GC services.
  • the access network (radio access network, RAN) of the 5G system may be called next generation-RAN (NG-RAN).
  • NG-C is the control plane interface between NG-RAN and 5GC.
  • NG-U is the user plane interface between NG-RAN and 5GC.
  • the eNB of LTE can evolve into the next generation LTE base station ng-eNB.
  • the ng-eNB can connect to the 4G EPC through the S1-MME and S1-U interfaces so that the UE can access the EPC through the ng-eNB, and it can also connect to the 5GC through the NG-C and NG-U interfaces, so that the UE can pass through the ng-eNB.
  • -eNB accesses 5GC
  • ng-eNB provides wireless transmission resources for UE through 4G air interface access technology E-UTRA, and provides 5GC service for UE.
  • the ng-eNB can only be connected to 5GC or EPC, or the ng-eNB can be connected to 5GC and EPC at the same time.
  • NG-RAN nodes include ng-eNB and gNB.
  • the terminal equipment in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, user terminal, terminal , Wireless communication equipment, user agent or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in unmanned driving (self-driving), wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( Wireless terminal in transportation safety), wireless terminal in smart city, wireless terminal in smart home (smart home), cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local Loop (wireless local loop, WLL) stations, personal digital assistants (personal digital assistants, PDAs), handheld devices with wireless communication functions, computing devices or other processing devices connected to wireless modems, in-ve
  • wearable devices can also be referred to as wearable smart devices, which are the general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories.
  • Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets and smart jewelry for physical sign monitoring.
  • the terminal device may also be a terminal device in an Internet of Things (IoT) system.
  • IoT Internet of Things
  • Its main technical feature is to connect objects to the network through communication technology, so as to realize the intelligent network of human-machine interconnection and interconnection of things.
  • the network device in the embodiment of the present application may be any device with a wireless transceiver function.
  • the equipment includes, but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC) , Base transceiver station (Base Transceiver Station, BTS), home base station (for example, Home evolved NodeB, or Home Node B, HNB), baseband unit (BaseBand Unit, BBU), wireless fidelity (Wireless Fidelity, WIFI) system Access Point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP) or transmission and reception point (transmission and reception point, TRP), etc., can also be 5G (such as NR)
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU for short).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) The function of the layer.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and realizes the functions of the radio link control (RLC) layer, media access control (MAC) layer, and physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), or the CU can be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the network equipment provides services for the cell, and the terminal equipment communicates with the cell through the transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network equipment.
  • the cell may belong to a macro base station (for example, a macro eNB or a macro gNB, etc.) , It may also belong to the base station corresponding to the small cell, where the small cell may include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage and low transmit power, and are suitable for providing high-speed data transmission services.
  • Fig. 2 shows an exemplary flow chart of a wireless communication method provided by an embodiment of the present application.
  • the serving network device of the terminal device was changed from network device #1 to network device #2 (that is, an example of the target network device), where network device #1 adopted RAT#1 (that is, an example of the first RAT) ), the network device #2 is a network device using RAT#2 (ie, an example of the second RAT).
  • this method can be applied to a situation where a terminal device fails under NR and then switches to LTE, or this method can also be applied to a situation where a terminal device fails under LTE and switches to NR.
  • This application is not limited. In order to facilitate understanding and description, a case where a terminal device fails under NR and switches to LTE is taken as an example for description.
  • the terminal device sends instruction information #1 (ie, an example of the first instruction information) to the network device #2, and the instruction information #1 is used to indicate whether the report #1 is available.
  • Report #1 is the report of RAT#1 recorded by the terminal device.
  • RAT#1 and RAT#2 are different radio access technologies.
  • RAT#1 and RAT#2 may be a combination of any two RATs: NR of 5G system, E-UTRA of eLTE or LTE system, UTRA or WLAN of 3G system.
  • indication information #1 is used to indicate whether report #1 is available, where "available” indicates whether the terminal device stores or records the report indicated by the indication information, so that the network device can determine whether the indication is required according to the indication information Report. It can also be said that "Available” indicates whether the terminal device stores or records the indicated report for the network device to retrieve and use.
  • the instruction information #1 may be carried in an air interface message and sent to the network device #2.
  • the air interface message may be an air interface message in the prior art, or may be a newly defined air interface message, which is not limited in this application.
  • the air interface message may be a message specified by the RAT used by the network device #2 for communication between the terminal device and the network device.
  • the air interface message carrying indication information #1 may be any of the following messages: RRC reestablishment complete message (RRC reestablishment complete), RRC resume complete message (RRC resume) complete), RRC setup complete message (RRC setup complete), RRC reconfiguration complete message (RRC reconfiguration complete).
  • the air interface message carrying indication information #1 can be any one of the following messages: RRC connection reestablishment Complete message (RRC connection reestablishment Complete), RRC connection recovery complete Message (RRC connection resume complete), RRC connection setup complete message (RRC connection setup complete), RRC connection reconfiguration complete message (RRC connection reconfiguration complete).
  • report #1 can be any of the following reports:
  • RLF report (RLF-report)
  • RLF report is a report recorded when a UE has a radio link failure.
  • the content of the report can refer to the existing technology (such as 3GPP TS 38.331 and TS 36.331 and other wireless communication protocols specified in the terminal equipment The report content recorded when the wireless link fails).
  • indication information #1 is an indication of RLF report availability, for example, RLF-infoavailable
  • connection establishment failure report (connEstFailInfo).
  • the connection establishment failure report is a report recorded by a terminal device that has failed to establish a connection.
  • the content of the report can refer to the existing technology (for example, 3GPP TS 38.331 and TS 36.331, etc.).
  • the indication information #1 is an available indication of the connection establishment failure report, for example, connEstFailInfoAvailable.
  • RACH report (RACH-report)
  • RACH report is a report of random access failure or success record.
  • the content of the report can refer to the existing technology (for example, 3GPP TS 38.331 and TS 36.331).
  • the indication information #1 is a RACH report available indication, for example, RACH-infoavailable.
  • the log measurement report is the measurement report recorded by the UE in the idle state, that is, the MDT measurement log report.
  • the content of the report can refer to the existing technology (for example, 3GPP TS 38.331 and TS 36.331 and other wireless communication protocols)
  • the measurement performed by the terminal device is the report content of the generated measurement report).
  • the indication information #1 is an indication that the log measurement report is available, for example, logMeasAvailable.
  • the secondary base station connection failure report (SCGfailureinfo).
  • the secondary base station connection failure report is a report recorded by the terminal equipment when the secondary base station fails to connect.
  • the content of the report can refer to the existing technology (for example, wireless communication protocols such as 3GPP TS 38.331 and TS 36.331)
  • the indication information #1 is an available indication of the connection failure report of the secondary base station, such as SCGfailureinfoavailable.
  • the idle mode measurement report is used to indicate the report that the terminal device is measuring in the idle mode.
  • the content of the report can refer to the existing technology (for example, the terminal specified in the wireless communication protocol such as 3GPP TS 38.331 and TS 36.331)
  • the indication information #1 is an idle mode measurement report available indication, such as idleMeasAvailable.
  • Flight route report (MeasIdleReport).
  • the flight route report is the route of the terminal equipment flying in the air.
  • the content of the report can refer to the existing technology (for example, the terminal equipment specified in the wireless communication protocol such as 3GPP TS 38.331 and TS 36.331 is flying in the air
  • the report content of the flight route report recorded at the time).
  • the instruction information #1 is an available instruction for flight route report, for example, flightPathInfoAvailable.
  • Movement history information includes the movement history information of the terminal device, including the information of the cell where it has stayed.
  • the content of the report can refer to the existing technology (for example, the information content of the movement history information recorded by the terminal device when the terminal device moves as specified in the wireless communication protocol such as 3GPP TS 38.331 and TS 36.331).
  • the indication information #1 is an indication that the movement history information is available, for example, mobilityHistoryAvail.
  • the indication information #1 indicates that the RLF report recorded under the NR of the NR is available
  • the indication information #1 may be expressed as NRrlf-InfoAvailable.
  • the indication information #1 may use the form of true and/or false to indicate whether the report #1 is available.
  • RAT#1 is NR technology
  • network device #1 is NR technology network device
  • RAT#2 is LTE technology
  • network device #2 is LTE technology network device. That is, the terminal device moves from the network device #1 using the NR technology to the network device #2 using the LTE technology, and establishes an RRC connection with the network device #2.
  • the indication information #1 is NRrlf-InfoAvailable, where “NR” means that the RLF report is a report of NR technology
  • the network device is receiving the indication information #1( That is, NRrlf-InfoAvailable) can determine whether the RLF report of the NR technology is available.
  • the NRrlf-InfoAvailable is carried in the RRC Connection Reconfiguration Complete message RRCConnectionReconfigurationComplete, it can be expressed as:
  • the enumeration function ENUMERATED indicates “true”
  • the NRrlf-InfoAvailable is "OPTIONAL”
  • the "NRrlf-InfoAvailable” indication is not configured in the RRCConnectionReconfigurationComplete message, it means that the RLF report of the NR technology is not available.
  • the enumeration function ENUMERATED can also be indicated as "false”
  • the NRrlf-InfoAvailable indication is not configured in the RRCConnectionReconfigurationComplete message, it means that the report is not available.
  • the enumeration function ENUMERATED When the enumeration function ENUMERATED is indicated as “true”, it means that the RLF report of the NR technology recorded by the terminal device is available, and when the enumeration function ENUMERATED is indicated as “false”, it means that the RLF report of the NR technology recorded by the terminal device is not available.
  • the indication information #1 indicates that the RLF report of the NR technology is not available (in other words, when the indication information #1 does not exist)
  • the information element ENUMERATED may not be included.
  • the indication information #1 may also be expressed as a selection function CHOICE, or a boolean value form indicating that the report is available or unavailable.
  • the message carrying the indication information #1 also includes the report availability indication information without the RAT identification, which is used to indicate whether the report of the RAT adopted by the network device currently connected to the terminal device is available.
  • the indication information #1 used to indicate that the RLF report of LTE is available, carried in the RRC message of LTE may be expressed as "rlf-InfoAvailable".
  • the terminal device can also report indication information #4 (that is, an example of the fourth indication information), which can be used for Indicates that the report of this RAT#2 is available.
  • indication information #4 that is, an example of the fourth indication information
  • the message also includes rlf-InfoAvailable, which is used to indicate the network device to which the terminal device is currently connected, that is, the RAT adopted by the network device #2, that is Whether the RLF report of RAT#2 is available can be expressed as follows:
  • each report available indication information carried in the message carrying indication information #1 includes the identification information of the RAT corresponding to the indicated report.
  • the message may also be expressed as follows:
  • first indication information listed above is only exemplary, and this application is not limited to this.
  • the content and form indicated by the first indication information may be based on the actual communication situation of the terminal device (for example, obtaining a report).
  • the RAT and the network device it is switched to at the time) are changed.
  • the first indication information can be expressed as: LTERrlf-InfoAvailable
  • the air interface message carrying the first indication information for example, the RRC Reconfiguration Complete message may be expressed as:
  • the terminal device can also report the indication information of whether the RLF report of the NR is available.
  • the air interface message carrying the first indication information for example, the RRC Reconfiguration Complete message may be expressed as:
  • S220 The network device #2 receives the instruction information #1.
  • network device #2 may send indication information #2 (ie, an example of second indication information), and the indication information #2 is used to indicate whether network device #2 requests to send the report #1.
  • indication information #2 ie, an example of second indication information
  • S230 The terminal device receives the instruction information #2 sent by the network device #2.
  • the terminal device may determine whether to request to send the report #1 according to the indication information #2.
  • the network device #2 After receiving the indication information #1, the network device #2 determines whether the report #1 of the RAT #1 indicated by the indication information #1 is available. In addition, when the report #1 of RAT#1 is available, and the network device #2 supports or needs the report of RAT#1, the indication information #2 can be sent; when the network device #2 does not support the report of RAT#1, or not When report #1 is required, the network device may not send instruction information #2.
  • network device #2 When network device #2 receives report #1, it sends report #1 to network device #1, which can be used for the SON and/or MDT of network device #1 to ensure the performance of SON and/or MDT.
  • the indication information #2 may be carried in the air interface message sent by the network device to the terminal device, and the air interface message carrying the indication information #2 may be an air interface message in the prior art or a newly defined air interface message.
  • indication information #2 is carried in the UE Information Request message UEInformationRequest sent by the network device to the terminal device, indicating that the network device requires a certain type of UE report in a certain RAT.
  • UEInformationRequest carries indication information #2, report #1 is a random access report, and indication information #2 is a random access report request rach-ReportReq, then the message can be expressed as follows:
  • the indication information #2 includes the identification information of RAT#1.
  • report #1 is a random access report under the NR network
  • indication information #2 is a random access report request message NRrach-ReportReq
  • the UEInformationRequest message can be expressed as follows:
  • Example 3 The message bearing indication information #2 only includes the identification information of RATs other than RAT#2. That is to say, the message carrying indication information #2 only includes the identification information of the RAT other than the RAT adopted by the network device #2. When a request indication does not include the RAT identification, the request message indicates the identification information of the RAT adopted by the network device #2. report.
  • Example 4 Indication information #1 may only be used to indicate whether the RLF report of LTE is available and whether the RLF report of NR is available.
  • the indication information #2 may only be used to indicate whether the network device needs an LTE RLF report is available and whether the network device needs an NR RLF report.
  • the indication information #3 may only be used to indicate whether the network device supports the RLF report of LTE and whether the network device supports the RLF report of NR.
  • the rlf-ReportReq included in the UEInformationRequest message in the above example is used to indicate the RLF report of RAT#2.
  • the request indication information in the message carrying indication information #2 all includes the identification information of the RAT corresponding to the report indicated by each request indication.
  • the UEInformationRequest message can be in the following form:
  • the indication information #2 can indicate whether the network device requests a report through the Boolean value BOOLEAN, and the indication information #2 can also indicate whether the network device requests a report through an enumeration function or a selection function, but the application is not limited to this.
  • the terminal device can reuse the air interface message of the prior art to send a report to the network device, or send the report in a newly defined air interface message.
  • the terminal device sends a report in a UE information response message. It can be any of the following methods:
  • the format used for the air interface message of the bearer report (for example, the above manner 1 to mode 3) can be used in combination with the format of the air interface message for carrying the indication information #2 (for example, the above example 1 to example 4).
  • the format of mode one adopted for the air interface message carrying the report and the format of the air interface message carrying the indication information #2 adopt the format of example one, but the application is not limited to this.
  • Fig. 3 shows another exemplary flowchart of a wireless communication method provided in an embodiment of the present application.
  • the serving network device of the terminal device was changed from network device #1 to network device #2 (that is, an example of the target network device), where network device #1 adopted RAT#1 (that is, an example of the first RAT) ), the network device #2 is a network device using RAT#2 (ie, an example of the second RAT).
  • the network device #2 sends instruction information #3 to the terminal device, and the instruction information #3 is used to indicate whether the network device supports the report of a RAT other than the second RAT.
  • the instruction information #3 may include at least one of the following forms.
  • the indication information #3 includes information indicating whether the network device #2 is capable of supporting (or processing) reports of other networks other than the RAT#2 network.
  • Instruction #3 can be represented by 0 or 1.
  • the information in instruction #2 indicates 0, indicating that network device #2 supports reports from other networks; Indication 1, indicates that network device #2 does not support reports from other network devices , But this application is not limited to this.
  • the indication information #3 includes information indicating the version of the network device #2.
  • the protocol stipulates or the system presets the ability of the network device of each version to receive reports from each RAT. Therefore, the network device indirectly indicates the ability of the network device to receive the reports of each RAT through the indication information #3 indicating the version of the network device.
  • the terminal device determines whether the network device supports the report of each RAT according to the network device version information in the instruction information #3, and then determines whether the network device #3 is capable of receiving the report of the RAT#1.
  • the information indicating the version of the network device in the information #3 indicates that the network device #2 is a release 15 network device.
  • the network device stipulated in the protocol or the system preset release 15 does not support receiving the NR report, then the terminal device can determine that the network device #2 does not support receiving the NR network report after receiving the instruction information #3.
  • the information indicating the version of the network device #3 indicates that the network device #2 is a release 16 network device.
  • the network device specified in the protocol or the system preset release 16 supports receiving the report of the LTE network, then the terminal device can determine that the network device #2 supports receiving the report of the LTE network after receiving the instruction information #3.
  • the indication information #3 includes information indicating one or more types of reports, indicating that the network device #2 can or does not support the indicated types of reports of other RATs other than RAT#2.
  • the type of one or more reports indicated by the indication information #3 may be at least one of the following types: radio link failure report (RLF-report), connection establishment failure report (connEstFailInfo), random access report (RACH-report), log measurement report (logmeas), secondary base station failure report (SCGfailureinfo), UE movement history information (flightPathInfo), idle state measurement report (MeasIdleReport), flight path report (flightPathInfo).
  • radio link failure report (RLF-report), connection establishment failure report (connEstFailInfo), random access report (RACH-report), log measurement report (logmeas), secondary base station failure report (SCGfailureinfo), UE movement history information (flightPathInfo), idle state measurement report (MeasIdleReport), flight path report (flightPathInfo).
  • the indication information #3 sent by the network device #2 indicates the RLF report, which means that the network device #2 supports RLF reports of other RAT networks other than RAT#2.
  • the terminal device determines that the network device only supports RLF reports of other RATs, and does not support other types of reports other than RLF reports of other RATs.
  • the indication information #3 indicates the RAT supported by the network device #2, or in other words, the indication information #3 indicates the RAT corresponding to the report supported by the network device #2.
  • network device #2 is a network device that adopts NR technology, and it supports LTE reports, that is, RAT#1 is LTE, then the instruction information #3 sent by the network device to the terminal device includes the LTE identifier, and the terminal device receives After indicating information #3, it is determined that the network equipment can receive the LTE report.
  • S320 The terminal device determines whether the network device supports the report of RAT#1.
  • the report availability indication information is sent, and if the terminal device determines that the indication information #3 indicates that the report of RAT#1 is not supported, the report availability indication is not sent. Information, or send the report availability indication information, the report availability indication information indicates that report #1 is not available.
  • Network device #3 requests information from the terminal device according to requirements.
  • the request information is used to indicate whether network device #3 requests to send report #1; if the result indicated by the request indication information is yes, the terminal device sends report #1, If the result indicated by the request indication information is no, report #1 is not sent.
  • the terminal device determines whether to send the available indication information according to the received instruction information #3.
  • the terminal device may also send the available indication information and receive before, during, or after receiving the request indication information.
  • To the instruction information #3 after receiving the instruction information #3 sent by the network device #2, determine whether to send the report #1 to the network device #2 according to whether the network device #2 indicates to receive the report of the RAT #1.
  • the terminal device does not send the report #1 if the terminal device does not receive the instruction information #3 sent by the network device #3 before the preset time limit.
  • the preset time period may be in the following two forms.
  • Form 1 The preset period is a period of time before the terminal device receives the message A.
  • the message A may be a message preset by the system or stipulated by the protocol for prohibiting the terminal device from sending report #1 to the network device #2.
  • the message A may be an RRC connection reconfiguration complete message, an RRC reestablishment complete message, or a physical layer downlink control information.
  • Message A may also be a message used to carry indication information #3.
  • the terminal device determines that the indication information #3 is not included in the message A after receiving message A, the terminal device will not send a report to network device #2 #1. It can also be said that when the terminal device determines that the first message does not include the indication information #3 after receiving the message A, the terminal device considers that the network device #2 does not support the report #1, and the terminal device does not send the report #1.
  • the starting point of the preset time period may be the time point when the terminal device searches for network device #2 (for example, the initial access signal of the target network device is searched) or the starting point of the preset time period may be the terminal device and network device # 2
  • the time point at which the RRC connection is established (for example, the RRC establishment complete message is received), which is not limited in this solution.
  • message A may be an RRC reconfiguration complete message (RRCReconfigurationComplete).
  • RRCReconfigurationComplete RRC reconfiguration complete message
  • the terminal device determines that the RRC reconfiguration complete message does not include the indication information #3, then the terminal device considers the network device #2 There is no ability to receive report #1, therefore, report #1 will not be sent to the network device #2.
  • the preset time period can be indicated by a timer or counter.
  • the preset time period is a period of time from the start of the timer to the time before the timer expires or expires, or the preset time period is the counter start to the counter zero or The time interval to reach the maximum value.
  • the size of the sequence number of each process does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of this application. .
  • Fig. 5 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 1500 may include a processing unit 1510 and a transceiver unit 1520.
  • the communication device 1500 may correspond to the terminal device in the above method embodiment, for example, it may be a terminal device or a chip configured in the terminal device.
  • the communication device 1500 may correspond to the terminal equipment in the methods 200, 300, 400 according to the embodiments of the present application, and the communication device 1500 may include methods for executing the method 200 in FIG. 2, the method 300 in FIG. The unit of the method executed by the terminal device in the method 400 in FIG. 4.
  • each unit in the communication device 1500 and other operations and/or functions described above are used to implement the corresponding processes of the method 200 in FIG. 2, the method 300 in FIG. 3, and the method 400 in FIG. 4, respectively.
  • the processing unit 1510 can be used to execute S240 in the method 200, and the transceiver unit 1520 can be used to execute S210 and S250 in the method 200.
  • the processing unit 1510 can be used to execute S320 in the method 300, and the transceiver unit 1520 can be used to execute S330 in the method 300.
  • the transceiving unit 1520 can be used to execute S321 in the method 400.
  • the transceiver unit 1520 in the communication device 1500 may correspond to the transceiver 2200 in the terminal device 2000 shown in FIG. 6, and the processing unit 1110 in the communication device 1100 may It corresponds to the processor 2010 in the terminal device 2000 shown in FIG. 6.
  • the transceiver unit 1520 in the communication device 1500 may be implemented through a communication interface (such as a transceiver or an input/output interface), for example, may correspond to the terminal device shown in FIG. 6
  • the processing unit 1510 in the communication device 1500 may be implemented by at least one processor, for example, may correspond to the processor 2010 in the terminal device 2000 shown in FIG. 6.
  • the communication device 1500 may further include a storage unit, the storage unit may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • the communication device 1500 may correspond to the network device in the above method embodiment, for example, it may be a network device or a chip configured in the network device.
  • the communication apparatus 1500 may correspond to the network equipment in the methods 200, 300, and 400 according to the embodiments of the present application, and the communication apparatus 1500 may include methods for executing the method 200 in FIG. 2, the method 300 in FIG. The unit of the method executed by the network device in the method 400 in FIG. 4.
  • each unit in the communication device 1500 and other operations and/or functions described above are used to implement the corresponding processes of the method 200 in FIG. 2, the method 300 in FIG. 3, and the method 400 in FIG. 4, respectively.
  • the processing unit 1510 may be used to execute S230 in the method 200
  • the transceiver unit 1520 may be used to execute S220 in the method 200.
  • the transceiver unit 1520 can be used to execute S310 in the method 300.
  • the transceiving unit 1520 can be used to execute S322 in the method 400.
  • the transceiver unit in the communication device 1500 may correspond to the transceiver 3010 in the network device 3000 shown in FIG. 7, and the processing unit 1510 in the communication device 1500 may It corresponds to the processor 1300 in the network device 1300 shown in FIG. 7.
  • the communication device 1500 may further include a storage unit, the storage unit may be used to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations.
  • the transceiver unit 1520 in the communication device 1500 can be implemented through a communication interface (such as a transceiver or an input/output interface), for example, can correspond to the network shown in FIG. 7
  • the transceiver 3010 in the device 3000 and the processing unit 1510 in the communication device 1500 may be implemented by at least one processor, for example, may correspond to the processor 3020 in the network device 3000 shown in FIG. 7.
  • FIG. 6 is a schematic structural diagram of a terminal device 2000 provided by an embodiment of the present application.
  • the terminal device 2000 can be applied to the system shown in FIG. 1 to perform the functions of the terminal device in the foregoing method embodiment.
  • the terminal device 2000 includes a processor 2010 and a transceiver 2020.
  • the terminal device 2000 further includes a memory 2030.
  • the processor 2010, the transceiver 2020, and the memory 2030 can communicate with each other through internal connection paths to transfer control and/or data signals.
  • the memory 2030 is used for storing computer programs, and the processor 2010 is used for downloading from the memory 2030. Call and run the computer program to control the transceiver 1220 to send and receive signals.
  • the terminal device 2000 may further include an antenna 2040 for transmitting the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.
  • the aforementioned processor 2010 and the memory 2030 can be combined into a processing device, and the processor 2010 is configured to execute the program code stored in the memory 2030 to implement the aforementioned functions.
  • the memory 2030 may also be integrated in the processor 2010 or independent of the processor 2010.
  • the processor 2010 may correspond to the processing unit in FIG. 5.
  • the aforementioned transceiver 2020 may correspond to the transceiver unit in FIG. 5.
  • the transceiver 2020 may include a receiver (or called receiver, receiving circuit) and a transmitter (or called transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.
  • the terminal device 2000 shown in FIG. 5 can implement various processes involving the terminal device in the method embodiments shown in FIG. 2, FIG. 3, and FIG. 4.
  • the operations and/or functions of each module in the terminal device 2000 are respectively for implementing the corresponding processes in the foregoing method embodiments.
  • the above-mentioned processor 2010 can be used to execute the actions described in the previous method embodiments implemented by the terminal device, and the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
  • the transceiver 2020 can be used to execute the terminal device described in the previous method embodiments to send or receive from the network device action.
  • the aforementioned terminal device 2000 may further include a power supply 2050 for providing power to various devices or circuits in the terminal device.
  • the terminal device 2000 may also include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, and a sensor 2100.
  • the audio circuit A speaker 2082, a microphone 2084, etc. may also be included.
  • FIG. 7 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it may be a schematic structural diagram of a base station.
  • the base station 3000 can be applied to the system shown in FIG. 1 to perform the functions of the network device in the foregoing method embodiment.
  • the base station 3000 may include one or more radio frequency units, such as a remote radio unit (RRU) 3010 and one or more baseband units (BBU) (also known as distributed unit (DU) )) 3020.
  • RRU 3010 may be referred to as a transceiver unit, which corresponds to the transceiver unit 1510 in FIG. 5.
  • the transceiver unit 3010 may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 3011 and a radio frequency unit 3012.
  • the transceiving unit 3010 may include a receiving unit and a transmitting unit, the receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter, transmitting circuit).
  • the RRU 3010 part is mainly used for sending and receiving of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment.
  • the 3020 part of the BBU is mainly used for baseband processing and control of the base station.
  • the RRU 3010 and the BBU 3020 may be physically set together, or may be physically separated, that is, a distributed base station.
  • the BBU 3020 is the control center of the base station, and may also be called a processing unit, which may correspond to the processing unit 1510 in FIG. 5, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading.
  • the BBU processing unit
  • the BBU may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate instruction information #1, instruction information #2, and so on.
  • the BBU3020 may be composed of one or more single boards, and multiple single boards may jointly support a wireless access network (such as an LTE network) of a single access standard, or can respectively support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks).
  • the BBU 3020 also includes a memory 3021 and a processor 3022.
  • the memory 3021 is used to store necessary instructions and data.
  • the processor 3022 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment.
  • the memory 3021 and the processor 3022 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the base station 3000 shown in FIG. 7 can implement various processes involving network devices in the method embodiments shown in FIG. 2, FIG. 3, and FIG. 4.
  • the operations and/or functions of the various modules in the base station 3000 are used to implement the corresponding procedures in the foregoing method embodiments.
  • the above-mentioned BBU 3020 can be used to perform the actions described in the previous method embodiments implemented by the network device, and the RRU 3010 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the RRU 3010 can be used to perform the actions described in the previous method embodiments that the network device sends to or receives from the terminal device.
  • the base station 3000 shown in FIG. 7 is only a possible architecture of the network device, and should not constitute any limitation in this application.
  • the method provided in this application can be applied to network devices of other architectures.
  • network equipment including CU, DU, and AAU. This application does not limit the specific architecture of the network device.
  • the embodiment of the present application also provides a processing device, including a processor and an interface; the processor is configured to execute the method in any of the foregoing method embodiments.
  • the aforementioned processing device may be one or more chips.
  • the processing device may be a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC), or It is a central processor unit (CPU), it can also be a network processor (NP), it can also be a digital signal processing circuit (digital signal processor, DSP), or it can be a microcontroller (microcontroller unit). , MCU), it can also be a programmable logic device (PLD) or other integrated chips.
  • FPGA field programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processing circuit
  • microcontroller unit microcontroller unit
  • MCU programmable logic device
  • PLD programmable logic device
  • the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. In order to avoid repetition, it will not be described in detail here.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments may be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor.
  • the software module can be located in a mature storage medium in the field, such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • serial link DRAM SLDRAM
  • direct rambus RAM direct rambus RAM
  • the present application also provides a computer program product.
  • the computer program product includes: computer program code, which when the computer program code runs on a computer, causes the computer to execute FIG. 2, FIG. 3, and FIG. Figure 4 shows the method in the embodiment.
  • the present application also provides a computer-readable medium that stores program code, and when the program code runs on a computer, the computer executes FIGS. 2, 3, and 3 Figure 4 shows the method in the embodiment.
  • the present application also provides a system, which includes the aforementioned one or more terminal devices and one or more network devices.
  • the network equipment in the above-mentioned device embodiments completely corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit transmits the receiving or In the sending step, other steps except sending and receiving can be executed by the processing unit (processor).
  • the processing unit processor
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from a website, computer, server, or data center.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (digital video disc, DVD)), or a semiconductor medium (for example, a solid state disk (solid state disc, SSD)) etc.
  • the network equipment in the above-mentioned device embodiments completely corresponds to the network equipment or terminal equipment in the terminal equipment and method embodiments, and the corresponding modules or units execute the corresponding steps.
  • the communication unit transmits the receiving or In the sending step, other steps except sending and receiving can be executed by the processing unit (processor).
  • the processing unit processor
  • component used in this specification are used to denote computer-related entities, hardware, firmware, a combination of hardware and software, software, or software in execution.
  • the component may be, but is not limited to, a process, processor, object, executable file, thread of execution, program, and/or computer running on the processor.
  • application running on the computing device and the computing device can be components.
  • One or more components may reside in processes and/or threads of execution, and components may be located on one computer and/or distributed among two or more computers.
  • these components can be executed from various computer readable media having various data structures stored thereon.
  • the component may be based on, for example, a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • a signal having one or more data packets (such as data from two components interacting with another component in a local system, a distributed system, and/or a network, such as the Internet that interacts with other systems through signals) Communicate through local and/or remote processes.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • each unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • each functional unit may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software When implemented by software, it can be implemented in the form of a computer program product in whole or in part.
  • the computer program product includes one or more computer instructions (programs).
  • programs When the computer program instructions (programs) are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from a website, computer, server, or data center. Transmission to another website site, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or a data center integrated with one or more available media.
  • the usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

L'invention concerne un procédé de radiocommunication et un appareil de communication. Le procédé comprend l'étape suivante : un dispositif terminal envoie, à un dispositif de réseau cible, des premières informations d'indication pour indiquer si un premier rapport est disponible, le premier rapport étant un rapport enregistré par le dispositif terminal dans une première technologie d'accès radio (RAT), et le dispositif de réseau cible étant un dispositif de réseau utilisant une seconde RAT. Par conséquent, une perte du premier rapport due à l'impossibilité pour le dispositif de réseau cible de traiter le premier rapport peut être évitée.
PCT/CN2020/107155 2019-08-15 2020-08-05 Procédé de radiocommunication et appareil de communication WO2021027660A1 (fr)

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