US 12,089,111 B2
Relative location anchor group and local coordinate system
Jingchao Bao, San Diego, CA (US); and Sony Akkarakaran, Poway, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Aug. 11, 2021, as Appl. No. 17/399,982.
Prior Publication US 2023/0049626 A1, Feb. 16, 2023
Int. Cl. H04W 4/02 (2018.01); H04W 4/029 (2018.01); H04W 72/51 (2023.01)
CPC H04W 4/023 (2013.01) [H04W 4/029 (2018.02); H04W 72/51 (2023.01)] 37 Claims
OG exemplary drawing
 
1. A method of operating a position estimation entity, comprising:
determining a resource configuration associated with a position estimation procedure between a user equipment (UE) and multiple anchors, wherein the multiple anchors comprise at least a set of anchors of a relative location anchor group (RLAG), wherein the set of anchors of the RLAG are associated with known relative locations to each other;
transmitting the resource configuration;
receiving measurement data based on one or more positioning reference signals (PRSs) exchanged between the UE and the RLAG in association with the position estimation procedure; and
determining location information associated with the UE based on the measurement data,
wherein the RLAG is associated with an environment where absolute position estimation is unavailable or does not satisfy an accuracy requirement of the position estimation procedure, and
wherein the location information comprises relative location information, or
wherein the location information comprises a derived absolute position estimate of the UE corrected using transformation information for RLAG-specific position estimation error to obtain a more accurate absolute position estimate of the UE.
 
15. A method of operating a user equipment (UE), comprising:
receiving a resource configuration associated with a position estimation procedure between the UE and multiple anchors, wherein the multiple anchors include at least a set of anchors of a relative location anchor group (RLAG), and wherein the set of anchors of the RLAG are associated with known relative locations to each other; and
communicating one or more positioning reference signals (PRSs) with the set of anchors in accordance with the resource configuration of the position estimation procedure; and
obtaining location information associated with the UE based on measurement data associated with the one or more PRSs,
wherein the RLAG is associated with an environment where absolute position estimation is unavailable or does not satisfy an accuracy requirement of the position estimation procedure, and
wherein the location information comprises relative location information, or
wherein the location information comprises a derived absolute position estimate of the UE corrected using transformation information for RLAG-specific position estimation error to obtain a more accurate absolute position estimate of the UE.
 
20. A position estimation entity, comprising:
a memory;
at least one transceiver; and
at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
determine a resource configuration associated with a position estimation procedure between a user equipment (UE) and multiple anchors, wherein the multiple anchors comprise at least a set of anchors of a relative location anchor group (RLAG), wherein the set of anchors of the RLAG are associated with known relative locations to each other;
transmit, via the at least one transceiver, the resource configuration; and
receive, via the at least one transceiver, measurement data based on one or more positioning reference signals (PRSs) exchanged between the UE and the RLAG in association with the position estimation procedure; and
determine location information associated with the UE based on the measurement data,
wherein the RLAG is associated with an environment where absolute position estimation is unavailable or does not satisfy an accuracy requirement of the position estimation procedure, and
wherein the location information comprises relative location information, or
wherein the location information comprises a derived absolute position estimate of the UE corrected using transformation information for RLAG-specific position estimation error to obtain a more accurate absolute position estimate of the UE.
 
33. A user equipment (UE), comprising:
a memory;
at least one transceiver; and
at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to:
receive, via the at least one transceiver, a resource configuration associated with a position estimation procedure between the UE and multiple anchors, wherein the multiple anchors include at least a set of anchors of a relative location anchor group (RLAG), and wherein the set of anchors of the RLAG are associated with known relative locations to each other; and
communicate, via the at least one transceiver, one or more positioning reference signals (PRSs) with the set of anchors in accordance with the resource configuration of the position estimation procedure; and
obtain location information associated with the UE based on measurement data associated with the one or more PRSs,
wherein the RLAG is associated with an environment where absolute position estimation is unavailable or does not satisfy an accuracy requirement of the position estimation procedure, and
wherein the location information comprises relative location information, or
wherein the location information comprises a derived absolute position estimate of the UE corrected using transformation information for RLAG-specific position estimation error to obtain a more accurate absolute position estimate of the UE.