US 11,740,320 B2
Simplified cell location information sharing for positioning purposes
Alexandros Manolakos, San Diego, CA (US); Sony Akkarakaran, Poway, CA (US); Joseph Binamira Soriaga, San Diego, CA (US); Tao Luo, San Diego, CA (US); Tingfang Ji, San Diego, CA (US); and Naga Bhushan, San Diego, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 4, 2019, as Appl. No. 16/560,745.
Claims priority of application No. 20180100460 (GR), filed on Oct. 5, 2018.
Prior Publication US 2020/0110151 A1, Apr. 9, 2020
Int. Cl. G01S 5/06 (2006.01); G01S 5/10 (2006.01); H04W 64/00 (2009.01); G01S 5/02 (2010.01)
CPC G01S 5/06 (2013.01) [G01S 5/0289 (2013.01); G01S 5/10 (2013.01); H04W 64/003 (2013.01)] 27 Claims
OG exemplary drawing
 
1. A method of a user equipment (UE), comprising:
receiving a plurality of positioning reference signals (PRS) from a plurality of cells of a network, the plurality of cells being grouped into one or more cell groups, each cell group comprising one or more member cells, each member cell being one of the plurality of cells, each cell group being associated with an attribute set comprising one or more attributes, for each cell group, all member cells having all attributes of the associated attribute set in common, the plurality of PRSs including a plurality of PRS IDs, and for each cell group, a PRS ID of each member cell indicating a membership of that member cell in that cell group;
detecting a plurality of time of arrivals (TOA) of the plurality of PRSs;
deriving a time difference of arrival (TDOA) vector from the plurality of TOAs; and
sending the TDOA vector to a network entity of the network,
wherein the TDOA vector includes multiple TOA related measurements of multiple cells,
wherein the plurality of the cells provide wireless communication services in addition to transmitting PRSs,
wherein at least one cell of the plurality of cells is a member of more than one cell group,
wherein the multiple TOA related measurements of the multiple cells included in the TDOA vector are sufficient to determine a position of the UE in three dimensions (3D), and
wherein for at least one cell group, at least one attribute of the associated attribute set is one of:
a height attribute indicating that heights of all member cells of the at least one cell group are within a threshold height difference of each other, and
a plane attribute indicating that all member cells of the at least one cell group are on a two dimensional (2D) plane.