公开(公告)号：BRPI0606890A2

公开(公告)日：2009-07-21

申请号：BRPI0606890

申请日：2006-01-31

Applicant: QUALCOMM INC

Inventor： JOSHI ABHY A ,  REZAIIFAR RAMIN ,  TURNER SIMON

IPC: H04W74/00 ,  H04B1/707 ,  H04W88/06

Abstract: To access a first communication system, a terminal determines a transmission time for an access probe, an expected response time from the system, and a protected time interval based on the transmission time and/or expected response time. The terminal determines a starting time for sending the access probe such that the protected time interval does not overlap a tune-away interval in which the terminal is to monitor anther frequency/air-interface. This starting time may be set initially to the end of a prior access probe plus a pseudo-random wait duration and may be advanced forward or moved backward in time, if needed, by a time duration selected such that the protected time interval does not overlap the tune-away interval.