Invention Grant
- Patent Title: Determining a position of a wireless device
-
Application No.: US15503832Application Date: 2014-09-10
-
Publication No.: US10771916B2Publication Date: 2020-09-08
- Inventor: Miguel Lopez , Benny Lennartson , Krister Sundberg
- Applicant: Telefonaktiebolaget LM Ericsson (publ)
- Applicant Address: SE Stockholm
- Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
- Current Assignee Address: SE Stockholm
- Agency: Coats & Bennett, PLLC
- International Application: PCT/SE2014/051043 WO 20140910
- International Announcement: WO2016/039675 WO 20160317
- Main IPC: H04W4/02
- IPC: H04W4/02 ; G01S5/02 ; H04W64/00 ; H04B17/327 ; H04B17/336 ; H04W24/08 ; H04W72/04 ; H04W88/08

Abstract:
It is presented a method for determining a position of a wireless device within a single radio cell served by a plurality of remote radio heads. The method is performed in a position determination node and comprises the steps of: receiving a measured power signature comprising at least two, in time separated, power measurement values of a downlink signal, the measured power signature originating from the wireless device; comparing the measured power signature with a set of reference power signatures, wherein each one of the plurality of remote radio heads is associated with a reference power signature and the reference power signatures differ for at least two of the plurality of remote radio heads; and determining a position in that the wireless device is in the vicinity of one of the at least one remote radio head whose reference power signature best matches the measured power signature.
Public/Granted literature
- US20170245102A1 Determining a Position of a Wireless Device Public/Granted day:2017-08-24
Information query