Patent ID: 9100781
Filing Date: 2015-08-04
Classification: G01S,H04L,H04W

Abstract:
1. A method of transmitting a message by a terminal in a wireless communication system, the method comprising: receiving from a location server an assistance data provide message including an assistance data reference cell positioning reference signal (PRS) muting sequence indicating a muting configuration of an assistance data reference cell and a neighbor cell PRS muting sequence indicating a muting configuration of at least one neighbor cell; receiving a PRS from the assistance data reference cell and the at least one neighbor cell based on the assistance data reference cell PRS muting sequence and the neighbor cell PRS muting sequence; and transmitting to the location server a reference signal time difference (RSTD) determined based on the PRS received from the assistance data reference cell and the at least one neighbor cell, wherein the assistance data reference cell PRS muting sequence and the neighbor cell PRS muting sequence are configured based on a system frame number (SFN) of the assistance data reference cell, and wherein a first bit of the assistance data reference cell PRS muting sequence and the neighbor cell PRS muting sequence corresponds to a first PRS occasion after the SFN of the assistance data reference cell becomes 0.