Measurement gap configuration request method and apparatus, terminal, and network-side device

Abstract

Measurement gap configuration request methods performed by a base station, a location server, and a terminal are provided. The measurement gap configuration request method includes: receiving, by a base station, a measurement gap request sent by a terminal or a location server; and performing at least one of the following according to the measurement gap request: configuring a measurement gap for measurement on a downlink positioning reference signal, or sending feedback information to the terminal or the location server, where the feedback information is used to indicate whether the base station configures the measurement gap for measurement on the downlink positioning reference signal.

What is claimed is: 
     
         1 . A method for requesting a measurement gap configuration, performed by a base station, comprising:
 receiving a measurement gap request sent by a terminal or a location server; and   performing at least one of the following according to the measurement gap request: configuring a measurement gap for measurement on a downlink positioning reference signal, or sending feedback information to the terminal or the location server, wherein the feedback information is used to indicate whether the base station configures the measurement gap for measurement on the downlink positioning reference signal.   
     
     
         2 . The method according to  claim 1 , wherein the measurement gap request comprises at least one of the following:
 gap confirmation information, used to indicate the base station to confirm whether the measurement gap is configurable;   gap feedback information, used to indicate the base station to feed back to the terminal or the location server whether the measurement gap is configurable;   a gap request, used to indicate to the base station that the terminal is to use the measurement gap to perform measurement on the downlink positioning reference signal;   measurement frequency information, used to indicate frequency information by which the terminal performs measurement on the downlink positioning reference signal using the measurement gap;   requested measurement gap configuration information;   a start time of the measurement gap;   an end time of the measurement gap;   effective duration of the measurement gap;   at least part of configuration information of the downlink positioning reference signal;   priority information, used to indicate a priority of measurement on the downlink positioning reference signal or a location service to be performed in the measurement gap; or   bandwidth part (BWP) activation information, used to indicate the base station to activate a BWP when the measurement gap being unconfigurable is determined, so as to perform measurement on the downlink positioning reference signal in the activated BWP.   
     
     
         3 . The method according to  claim 1 , wherein sending the feedback information to the terminal or the location server comprises one of the following:
 when the measurement gap configuration is not configured, sending the feedback information to the terminal or the location server, wherein the feedback information indicates that the measurement gap is not configured;   when the measurement gap configuration is not configured, triggering a BWP activation procedure, and sending signaling for activating a target BWP to the terminal, wherein the target BWP is a positioning BWP or a new BWP other than a downlink BWP currently activated by the terminal; or   sending the feedback information to the terminal or the location server, wherein the feedback information indicates that the measurement gap is configured.   
     
     
         4 . The method according to  claim 3 , wherein the feedback information further comprises at least one of the following:
 an identifier of the downlink positioning reference signal for which measurement gap is not configured;   configuration information of the measurement gap that is not configured;   at least part of information in downlink BWP configuration information;   recommended measurement gap configuration information;   recommended downlink positioning reference signal configuration information;   BWP activation request indication signaling, used to indicate or trigger the terminal to initiate a BWP activation procedure and perform measurement on the downlink positioning reference signal in a newly activated BWP; or   a cause for not configuring the measurement gap.   
     
     
         5 . The method according to  claim 4 , wherein the BWP activation request indication signaling is further used to indicate configuration information of the activated BWP. 
     
     
         6 . A method for requesting measurement gap configuration, performed by a location server, comprising:
 sending preset signaling to a terminal, wherein the preset signaling comprises at least part of information in current downlink positioning reference signal configuration information; and   sending a measurement gap request to a base station serving the terminal, wherein the measurement gap request is used to indicate the base station to configure a measurement gap for measurement on a downlink positioning reference signal.   
     
     
         7 . The method according to  claim 6 , wherein the measurement gap request comprises at least one of the following:
 gap confirmation information, used to indicate the base station to confirm whether the measurement gap is configurable;   gap feedback information, used to indicate the base station to feed back to the terminal or the location server whether the measurement gap is configurable;   a gap request, used to indicate to the base station that the terminal is to use the measurement gap to perform measurement on the downlink positioning reference signal;   measurement frequency information, used to indicate frequency information by which the terminal performs measurement using the measurement gap;   requested measurement gap configuration information;   a start time of the measurement gap;   an end time of the measurement gap;   effective duration of the measurement gap;   at least part of configuration information of the downlink positioning reference signal;   priority information, used to indicate a priority of measurement on the downlink positioning reference signal or a location service in the measurement gap; or   bandwidth part (BWP) activation information, used to indicate the base station to activate a MVP when the measurement gap being unconfigurable is determined, so as to perform measurement on the downlink positioning reference signal in the activated BWP.   
     
     
         8 . The method according to  claim 6 , wherein the preset signaling is further used to request the terminal to determine whether to request the measurement gap, or the preset signaling is used to request at least one of configuration information of the measurement gap, frequency information for performing the measurement, or identification information of the downlink positioning reference signal associated with the measurement gap expected by the terminal. 
     
     
         9 . The method according to  claim 6 , wherein after sending the measurement gap request to the base station serving the terminal, the method further comprises:
 receiving feedback information sent by the base station, or receiving feedback information forwarded by the terminal, wherein the feedback information is used to indicate whether the base station configures the measurement gap.   
     
     
         10 . The method according to  claim 9 , wherein after receiving the feedback information sent by the base station or the terminal, the method further comprises:
 when the feedback information indicates that the base station does not configure the measurement gap, performing at least one of the following:   determining new downlink positioning reference signal configuration information, wherein the new downlink positioning reference signal configuration information comprises downlink positioning reference signal configuration information before the current downlink positioning reference signal configuration information of the terminal, or downlink positioning reference signal configuration information by updating the current downlink positioning reference signal configuration information based on the feedback information;   sending the new downlink positioning reference signal configuration information to the terminal or a positioning base station that participates in a downlink positioning reference signal positioning service;   adjusting a preset positioning demand or a performance indicator of the terminal, and sending an adjusted positioning demand or an adjusted performance indicator of the terminal to an upper-layer network node;   sending, to the upper-layer network node, information indicating inability to meet the preset positioning demand and a cause for the inability to meet the preset positioning demand; or   sending a BWP activation request to the base station, wherein the BWP activation request comprises BWP configuration information expected by the terminal,   wherein the feedback information comprises at least one of the following:   an identifier of the downlink positioning reference signal for which the measurement gap is not configured;   configuration information of the measurement gap that is not configured;   at least part of information in downlink BWP configuration information;   recommended measurement gap configuration information;   recommended downlink positioning reference signal configuration information;   BWP activation request indication signaling, used to indicate or trigger the terminal to initiate a BWP activation procedure and perform measurement on the downlink positioning reference signal in a newly activated BWP; or   a cause for not configuring the measurement gap.   
     
     
         11 . The method according to  claim 10 , wherein after receiving the feedback information sent by the base station, the method further comprises:
 when the feedback information indicates that the base station does not configure the measurement gap, sending the current downlink positioning reference signal configuration information to the terminal or the positioning base station that participates in the downlink positioning reference signal positioning service.   
     
     
         12 . The method according to  claim 6 , wherein before sending the preset signaling to the terminal, the method further comprises at least one of the following:
 obtaining capability information of the terminal when an on-demand positioning request for the terminal is received;   determining the current downlink positioning reference signal configuration information of the terminal based on the capability information of the terminal or the on-demand positioning request; or   determining the measurement gap configuration required by the terminal to perform measurement on a target positioning service, wherein the target positioning service is a positioning service corresponding to the current downlink positioning reference signal configuration information.   
     
     
         13 . The method according to  claim 6 , wherein after sending the preset signaling to the terminal, the method further comprises:
 receiving a feedback indication returned by the terminal, wherein the feedback indication is used to indicate whether the terminal requests the measurement gap; or   when the feedback indication indicates that the terminal requests the measurement gap; waiting for the terminal or the base station to feed back feedback signaling about whether the measurement gap is configured.   
     
     
         14 . A measurement method, performed by a terminal, comprising:
 receiving preset signaling sent by a location server, wherein the preset signaling comprises at least part of information in current downlink positioning reference signal configuration information;   sending a measurement gap request to a base station according to the preset signaling, wherein the measurement gap request is used to indicate the base station to configure a measurement gap for measurement on a downlink positioning reference signal; and   performing measurement on the downlink positioning reference signal according to whether the measurement gap is configured or the preset signaling.   
     
     
         15 . The measurement method according to  claim 14 , wherein the measurement gap request comprises at least one of the following:
 gap confirmation information, used to indicate the base station to confirm whether the measurement gap is configurable;   gap feedback information, used to indicate the base station to feed back to the terminal or the location server whether the measurement gap is configurable;   a gap request, used to indicate to the base station that the terminal is to use the measurement gap to perform measurement on the downlink positioning reference signal;   measurement frequency information, used to indicate frequency information by which the terminal performs measurement using the measurement gap;   requested measurement gap configuration information;   a start time of the measurement gap;   an end time of the measurement gap;   effective duration of the measurement gap;   at least part of configuration information of the downlink positioning reference signal;   priority information, used to indicate a priority of measurement on the downlink positioning reference signal or a location service in the measurement gap; or   bandwidth part (BWP) activation information, used to indicate the base station to activate a MVP when the measurement gap being unconfigurable is determined, so as to perform measurement on the downlink positioning reference signal in the activated BWP.   
     
     
         16 . The measurement method according to  claim 14 , wherein the preset signaling is further used to request the terminal to feed back whether to request the measurement gap, or the preset signaling is used to request at least one of configuration information of the measurement gap, frequency information for performing the measurement, or identification information of the downlink positioning reference signal associated with the measurement gap expected by the terminal. 
     
     
         17 . The measurement method according to  claim 14 , wherein after sending the measurement gap request to the base station, the method further comprises:
 receiving feedback information sent by the base station, wherein the feedback information is used to indicate whether the base station configures the measurement gap.   
     
     
         18 . The measurement method according to  claim 14 , wherein after sending the measurement gap request, when the measurement gap configuration is not received, or the feedback information sent by the base station indicates that the measurement gap is not configured, performing at least one of the following:
 sending a BWP activation request to the base station, for requesting to perform measurement on the downlink positioning reference signal in a newly activated BWP; or   sending BWP activation request confirmation signaling to the location server, wherein the BWP activation request confirmation signaling is used to indicate whether the terminal sends the BWP activation request to the base station.   
     
     
         19 . The measurement method according  claim 14 , wherein after performing the measurement on the downlink positioning reference signal, the method further comprises:
 sending a measurement result of the downlink positioning reference signal to the location server, wherein the measurement result of the downlink positioning reference signal comprises at least one of the following information:   the measurement result of the downlink positioning reference signal;   whether the downlink positioning reference signal is measured in the measurement gap;   whether the measurement gap request is sent to the base station; or   the identifier of the associated downlink positioning reference signal.   
     
     
         20 . The method according to  claim 14 , wherein the downlink positioning reference signal is not processed when the measurement gap is not configured.