Patent ID: 7330732

Claim:
A method of scheduling measurement for cells in a plurality of wireless communication systems, comprising: categorizing cells in a first wireless communication system based on a plurality of states including an Unknown state, a Known Confirmed state, and a Known Unconfirmed state, the Unknown state including cells in the first system for which timing information and cell identification are not known, the Known Confirmed state including cells in the first system for which timing information is known and cell identification has been confirmed within last T seconds, where T is a predetermined time period, and the Known Unconfirmed state including cells in the first system for which timing information is known and cell identification has not been confirmed within last T seconds; prioritizing the plurality of states; prioritizing cells in a second wireless communication system relative to the plurality of states; selecting a cell in the first system of the second system based on priorities of the cells in the first and second systems; and scheduling the selected cell for measurement in next available frame.