US 12,386,076 B2
Obtaining and providing positioning assistance data
Fredrik Gunnarsson, Linköping (SE); and Ritesh Shreevastav, Upplands Väsby (SE)
Assigned to TELEFONAKTIEBOLAGET LM ERICSSON (PUBL), Stockholm (SE)
Appl. No. 17/440,761
Filed by Telefonaktiebolaget LM Ericsson (publ), Stockholm (SE)
PCT Filed Mar. 17, 2020, PCT No. PCT/SE2020/050272
§ 371(c)(1), (2) Date Sep. 18, 2021,
PCT Pub. No. WO2020/190198, PCT Pub. Date Sep. 24, 2020.
Claims priority of provisional application 62/820,291, filed on Mar. 19, 2019.
Prior Publication US 2022/0179097 A1, Jun. 9, 2022
Int. Cl. G01S 19/25 (2010.01); G01S 19/04 (2010.01); G01S 19/06 (2010.01)
CPC G01S 19/252 (2013.01) [G01S 19/04 (2013.01); G01S 19/06 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method performed by a target device to obtain positioning assistance data from a location server, the target device and the location server operating in a wireless communications network, and the method comprising:
transmitting, to the location server, a request for positioning assistance data and providing first logical position information, the request comprising a desired periodicity condition for sending the positioning assistance data and a duration for ending transfer of the positioning assistance data, the request for positioning assistance data comprising a request for non-periodic assistance data,
obtaining, from the location server, an error reason when the request for positioning assistance data cannot be one of fully or partly supported,
obtaining, from the location server, positioning assistance data including the non-periodic assistance data, based on the first logical position information,
when some or all of the positioning assistance data is unavailable, obtaining an error indication in a positioning method specific information element,
when being associated with a second logical position, transmitting, to the location server, a request for positioning assistance data and providing second logical position information; and
obtaining, from the location server, positioning assistance data, based on the second logical position information, the positioning assistance data being periodic positioning assistance data obtained at a number of periodic points in time in order to obtain updated positioning assistance data, and the periodic positioning assistance data obtained at regular points in time or time instants;
the first and second logical position information each referring to a respective identifier of a respective network entity associated with the target device, and
each respective identifier being any one out of:
a base station Identity, ID,
an evolved NodeB, eNB, ID,
a gNB ID,
a Transmission and Reception Point, TRP, ID,
a Transmission Point, TP, ID,
a Reception Point, RP, ID,
a Remote Radio Head, RRH, ID, and
a tracking area code.