Patent ID: 9554319
Date: 2017-01-24
CPC Classifications: H04W

Claim:
1. A method of monitoring and switching between radio frequencies (RFs) at an access terminal in a wireless communication environment, comprising: determining a signal quality for a current channel via which a current signal is accessed; determining whether the determined signal quality is above a predetermined threshold value; determining a signal quality of a neighbor channel that carries a signal that is frame synchronized with the current signal when the determined signal quality is less than or equal to the predetermined threshold value; determining whether to perform a handoff to the neighbor channel based at least in part on the signal quality of the current channel and the signal quality of the neighbor channel; initiating the handoff to the neighbor channel at a time when a frame is expected to be received in the current signal; and disabling an RF monitoring for at least the current channel if the determined signal quality for the current channel is above the predetermined threshold value, wherein the determining the signal quality of the neighbor channel comprises determining a signal strength for the neighbor channel based on a cyclic prefix (CP) correlation.