公开(公告)号：US20200314791A1

公开(公告)日：2020-10-01

申请号：US16824349

申请日：2020-03-19

Applicant: QUALCOMM Incorporated

Inventor： Sony AKKARAKARAN ,  Sven FISCHER ,  Stephen EDGE ,  Joseph SORIAGA ,  Tao LUO ,  Peter GAAL ,  Alexandros MANOLAKOS ,  Guttorm OPSHAUG ,  Zhimin DU ,  Yiqing CAO ,  Tingfang JI ,  Lorenzo CASACCIA

IPC: H04W64/00 ,  H04W12/00

Abstract: A reference signal periodically transmitted by a base station in a wireless network can have certain proprietary properties to help prevent detection and utilization of the signal for unauthorized positioning of mobile devices. More specifically, a network node can obscure and introduce time-variation in mapping between positioning signals and a corresponding physical base stations. The network node may also introduce time variations in fields of a base station almanac (BSA) provided to subscribing user equipments (UEs). The information transmitted to the subscribing UEs may be encrypted.