公开(公告)号：US20140198755A1

公开(公告)日：2014-07-17

申请号：US14213783

申请日：2014-03-14

Applicant: QUALCOMM Incorporated

Inventor： Chandrasekhar T. SUNDARRAMAN ,  Aleksandar M. GOGIC

IPC: H04W72/04

CPC classification number: H04W72/0413 ,  H04W36/04 ,  H04W56/00 ,  H04W56/0055 ,  H04W84/045

Abstract: A radio frequency receive chain of an access point is reused for different functions. For example, the same RF receive chain may be used to receive on a downlink at certain points in time and on an uplink at other points in time. An RF receive chain that is used to derive synchronization from downlink signals received from a macro system also may be used to receive uplink signals from an access terminal to provide assistance for hand-in of the access terminal. Accelerated searching for hand-in may be provided through the use of a relatively small search window for hand-in of an access terminal to a small coverage access point. In some aspects, the search window may be defined based on the distance between access points or calibration of synchronization error between access points.

Abstract translation: 接入点的射频接收链被重用于不同的功能。 例如，相同的RF接收链可以用于在某些时间点的下行链路上以及在其他时间点的上行链路上接收。 用于从从宏系统接收的下行链路信号导出同步的RF接收链也可以用于从接入终端接收上行链路信号，以提供对接入终端的接入的帮助。 可以通过使用相对较小的搜索窗口来提供对于接入的加速搜索，以便将接入终端切换到小覆盖接入点。 在一些方面，可以基于接入点之间的距离或接入点之间的同步误差的校准来定义搜索窗口。