公开(公告)号：US20110312339A1

公开(公告)日：2011-12-22

申请号：US13148312

申请日：2010-02-26

申请人： Tarmo Kuningas ,  Elena Voltolna ,  Dirk Gerstenberger ,  Daniel Larsson

发明人： Tarmo Kuningas ,  Elena Voltolna ,  Dirk Gerstenberger ,  Daniel Larsson

IPC分类号： H04W24/00

CPC分类号： H04W64/00 ,  G01S5/0226 ,  G01S5/0236

摘要： The present invention relates to methods and arrangements in a network node such as a positioning server and a user equipment of enabling downlink-based positioning of the user equipment which is served by a serving cell. The network node estimates (210) a timing difference between a timing of a neighboring cell and a timing of the serving cell. This is done based on synchronization information associated with the neighboring and serving cells. It then transmits (220) an instruction to perform a positioning measurement to the user equipment. The instruction comprises an identity of the neighboring cell and the estimated timing difference. In this way the UE may find the reference signal when performing the positioning measurements, even when the SFNs of the neighbor cell is not aligned with the SFN of the serving cell.

摘要翻译： 本发明涉及诸如定位服务器的网络节点和启用由服务小区服务的用户设备的基于下行链路定位的用户设备的方法和布置。 网络节点估计（210）相邻小区的定时与服务小区的定时之间的定时差。 这是基于与相邻和服务小区相关联的同步信息完成的。 然后，向用户设备发送（220）指令以执行定位测量。 该指令包括相邻小区的身份和估计的时间差。 以这种方式，即使当相邻小区的SFN与服务小区的SFN不对齐时，UE也可以在执行定位测量时找到参考信号。