Patent ID: 8078183

Claim:
A method of wireless channel assignment, applying different assignment strategies to a plurality of nominated cells belonging to a Base Station Controller, comprising: obtaining channel assignment strategy information for the plurality of nominated cells; communicating channel assignment strategy information for the plurality of nominated cells via at least one communication message; and allocating channels for the plurality of nominated cells according to channel assignment strategy information communicated via the at least one communication message; wherein the at least one communication message comprises a Voice Group Call Service/Voice Broadcast Service ASSIGNMENT REQUEST message and a Voice Group Call Service/Voice Broadcast Service AREA CELL INFO message; wherein an information element of Assignment Requirement in the Voice Group Call Service/Voice Broadcast Service ASSIGNMENT REQUEST message has an optional type; wherein Cell Identifier, Cell Identifier List and Cell Identifier List Segment information elements, in the Voice Group Call Service/Voice Broadcast Service ASSIGNMENT REQUEST message, or in the Voice Group Call Service/Voice Broadcast Service AREA CELL INFO message, comprise a plurality of fields which indicate channel assignment strategy information for each of the plurality of nominated cells; wherein a channel assignment strategy indication field, AR Ind, is provided in each Cell identification field of Cell Identifier, Cell Identifier List, and Cell Identifier List Segment information elements, in the Voice Group Call Service/Voice Broadcast Service ASSIGNMENT REQUEST message, or in the Voice Group Call Service/Voice Broadcast Service AREA CELL INFO message, to indicate channel assignment strategy information for each of the plurality of nominated cells.