Methods and apparatus for use in controlling wireless transceiver operation in a mobile communication device

摘要

A mobile device operates for communications via a first wireless network with use of a first transceiver. The device performs scanning operations with use of a second transceiver for identifying a set of cell IDs corresponding to a plurality of stations of one or more second wireless networks. The device stores the set of cell IDs in association with an ID of the first wireless network. While operating for communications with use of the second transceiver, the device maintains the first transceiver in a low power state. The device performs scanning operations with use of the second transceiver for identifying a current set of cell IDs, and compares the cell IDs of the current set with cell IDs of the stored set. The device maintains the first transceiver in the low power state or enables its operation based on the comparison.

主权项

1. A method in a mobile communication device for communications, the method comprising:
performing one or more scanning operations with use of a first transceiver portion in a geographical region; failing to connect with any first wireless networks in the geographical region; performing one or more scanning operations with use of a second transceiver portion for identifying a set of cell identifications corresponding to a plurality of stations of one or more second wireless networks available in the geographical region; storing the set of cell identifications in association with an indication of the failure to connect with any first wireless networks in the geographic region; while operating for communications via a second wireless network with use of the second transceiver portion:
performing one or more scanning operations with use of the second transceiver portion for identifying a current set of cell identifications, the current set of cell identifications corresponding to a currently-serving station of the second wireless network and one or more neighboring stations;comparing cell identifications of the current set with cell identifications of the stored set; andwhen the number or percentage of matching cell identifications of the current and stored sets meets or exceeds a predetermined threshold, setting the first transceiver portion in a low power state.