Patent ID: 8149774
Filing Date: 2012-04-03
Classification: H04W

Abstract:
1. A system comprising: a radio access network (RAN) including a plurality of base transceiver stations (BTSs) radiating to define a plurality of wireless coverage areas, wherein forward-link communications in each wireless coverage area are defined at least in part by a respective PN-offset used to spread the forward-link communications; and mobile stations arranged to be served by the RAN, to scan for BTS signals by attempting to tune iteratively to each of a series of PN-offsets, and to initiate communications with the RAN on detected PN offsets, wherein the RAN is arranged to detect a state of a given wireless coverage area and, in response, to temporarily change the PN-offset of the given wireless coverage area to a reserved PN-offset, wherein at least one of the mobile stations is programmed to not initiate communications with the RAN on the reserved PN-offset.