发明名称 |
APPARATUS, SYSTEMS AND METHODS FOR MOBILE NETWORK POSITIONING OF MTC DEVICES USING COMMON REFERENCE OR SYNCHRONIZATION SIGNALS |
摘要 |
Embodiments improve User Equipment (UE) positioning accuracy in a mobile communication system by providing for a UE configured to listen for Positioning Reference Signal (PRS) transmissions within an operating bandwidth around Direct Current (DC) sub-carrier and at least one non-PRS transmission including, for example, a CRS or PSS/SSS; receiving, at the UE, PRS and non-PRS(s) transmissions transmitted from base stations within the operating bandwidth; performing, at the UE, Time of Arrival (TOA) measurements for each of the plurality of base stations, wherein the TOA measurements are determined based on the at least one non-PRS transmission; obtaining Observed Time Difference of Arrival (OTDOA) measurements by subtracting TOA for the plurality of base stations from a TOA for a reference base station, and transmitting, from the UE to a Location Server (LS), the OTDOA measurements, wherein the LS performs a positioning estimation of the UE based on the OTDOA measurements. |
申请公布号 |
US2016295374(A1) |
申请公布日期 |
2016.10.06 |
申请号 |
US201514806091 |
申请日期 |
2015.07.22 |
申请人 |
Sony Corporation |
发明人 |
Persson Magnus;Priyanto Basuki;Karlsson Peter C. |
分类号 |
H04W4/02;G01S5/06;G01S5/00;H04W4/00 |
主分类号 |
H04W4/02 |
代理机构 |
|
代理人 |
|
主权项 |
1. A method for improved User Equipment (UE) positioning accuracy in a mobile communication system, the method comprising:
providing for a UE configured to listen for Positioning Reference Signal (PRS) transmissions within an operating bandwidth around Direct Current (DC) sub-carrier and at least one non-PRS transmission; receiving, at the UE, PRS and non-PRS transmissions transmitted from base stations within the operating bandwidth; performing, at the UE, Time of Arrival (TOA) measurements for each of the plurality of base stations, wherein the TOA measurements are determined based on the at least one non-PRS transmission; obtaining Observed Time Difference of Arrival (OTDOA) measurements by subtracting the TOA measurements for each of the plurality of base stations from a TOA for a reference base station, and transmitting, from the UE to a Location Server (LS), the OTDOA measurements, wherein the LS performs a positioning estimation of the UE based on the TDOA measurements. |
地址 |
Tokyo JP |