Method and apparatus for positioning user equipment

A method for positioning a user equipment (UE), implemented in a primary serving base station serving the UE, comprising:

• receiving, by the primary serving base station, an inquiry message whether the UE is in a coordinated multi-point transmission (CoMP) state;
• reporting, by the primary serving base station, that the UE is in the CoMP state;
• receiving, by the primary serving base station, a positioning measurement request relative to the UE;
• transmitting, to at least one of the UE and other serving base station in the CoMP set, the positioning measurement request;
• receiving, by the primary serving base station, a parameter related to positioning of the UE measured by the UE relative to a plurality of serving base stations in the CoMP set and a parameter related to the positioning of the UE measured by the other serving base station relative to the UE, wherein the plurality of serving base stations comprise the primary serving base station and the other serving base station;
• transmitting, by the primary serving base station, a parameter related to the positioning of the UE measured by the primary serving base station and the parameter related to the positioning of the UE measured by the UE and the other serving base station.

A method for positioning a user equipment (UE), comprising:

• receiving, by the UE, a positioning measurement request that instructs the UE to measure a parameter related to positioning of the UE relative to a plurality of serving base stations in a coordinated multi-point transmission (COMP) set of the UE;
• measuring, by the UE, the parameter related to the positioning of the UE relative to the plurality of serving base stations;
• and
• transmitting, by the UE, the parameter related to the positioning of the UE measured by the UE relative to the plurality of serving base stations.

A positioning server, comprising a hardware processor and a non-transitory storage medium accessible to the hardware processor, the non-transitory storage medium comprising:

• a determining unit, configured to determine that a user equipment (UE) is in a coordinated multi-point transmission (CoMP) state;
• a first transceiving unit, configured to, after the determining unit determines that the UE is in the CoMP state, transmit a request message for requesting a plurality of serving base stations in a CoMP set of the UE and the UE to respectively measure a parameter related to positioning of the UE, and receive the parameter related to the positioning of the UE from the plurality of serving base stations and the UE;
• and
• a positioning unit, configured to determine a location of the UE according to the parameter received by the first transceiving unit.

A primary serving base station for serving a user equipment (UE), comprising:

• a second transceiving unit, configured to receive, from a positioning server, an inquiry message whether the UE is in a coordinated multi-point transmission (CoMP) state;
• and
• a reporting unit, configured to, in response to the inquiry message received by the second transceiving unit, report to the positioning server that the UE is in the CoMP state;
• wherein the second transceiving unit is further configured to:
• receive, from the positioning server, a positioning measurement request relative to the UE;
• transmit, to the UE and/or other serving base station in the CoMP set, the positioning measurement request;
• receive, from the UE and/or the other serving base station, a parameter related to positioning of the UE measured by the UE relative to a plurality of serving base stations in the CoMP set and/or a parameter related to the positioning of the UE measured by the other serving base station relative to the UE, wherein the plurality of serving base stations comprise the primary serving base station and the other serving base station;
• transmit, to the positioning server, a parameter related to the positioning of the UE measured by the primary serving base station and the parameter related to the positioning of the UE measured by the UE and/or the other serving base station.

A user equipment (UE), comprising:

• a third transceiving unit, configured to receive a positioning measurement request that instructs the UE to measure a parameter related to positioning of the UE measured by the UE relative to a plurality of serving base stations in a coordinated multi-point transmission (CoMP) set of the UE;
• and
• a measuring unit, configured to, according to the positioning measurement request received by the third transceiving unit, measure the parameter related to the positioning of the UE relative to the plurality of serving base stations,
• wherein the third transceiving unit is further configured to transmit the parameter related to the positioning of the UE measured by the measuring unit relative to the plurality of serving base stations.