公开(公告)号：US09432919B2

公开(公告)日：2016-08-30

申请号：US14168683

申请日：2014-01-30

Applicant: Broadcom Corporation

Inventor： Nelson Ray Sollenberger ,  Xiaoxin Oiu ,  Wei Luo

IPC: H04W48/16 ,  H04B7/26 ,  H04W56/00 ,  H04W48/18 ,  H04W88/06

CPC classification number: H04W48/16 ,  H04B7/2675 ,  H04W48/18 ,  H04W56/0035 ,  H04W88/06

Abstract: Certain aspects of a method and system for a fast cell search using a primary synchronization channel (PSYNC) process in a multimode wideband code division multiple access (WCDMA) terminal are provided. A WCDMA frequency search or a global system for mobile communications (GSM) frequency search is performed based on a current radio access technology (RAT), received signal strength indication (RSSI) scan measurements, and PSYNC detection operations. The RSSI scan measurements may be averaged by making multiple measurements during a measurement period. At least part of the PSYNC detection operations may be performed during a remaining portion of the measurement period. WCDMA carrier frequencies may be marked in accordance with the results of the PSYNC detection operations. For GSM, some of the frequencies may be removed from the search based on the PSYNC marking while the remaining search frequencies may be ranked based on results from the RSSI scan measurements.

Abstract translation: 提供了在多模宽带码分多址（WCDMA）终端中使用主同步信道（PSYNC）进程的快速小区搜索的方法和系统的某些方面。 基于当前无线电接入技术（RAT），接收信号强度指示（RSSI）扫描测量和PSYNC检测操作来执行WCDMA频率搜索或全球移动通信（GSM）频率搜索系统。 可以通过在测量期间进行多次测量来对RSSI扫描测量进行平均。 至少部分PSYNC检测操作可以在测量周期的剩余部分期间执行。 可以根据PSYNC检测操作的结果标记WCDMA载波频率。 对于GSM，可以基于PSYNC标记从搜索中去除一些频率，而基于RSSI扫描测量的结果可以对剩余的搜索频率进行排名。