Motorola Corporation

Frank Fei Zhou

Jiangnan Jason Chen

Shao Wei Pan

Fan Wang

Kevin M Laird

Hechun Cai

Using conventional techniques, a common power control channel provides information used by mobile stations for power control operation of each mobile station. In accordance with the present invention, the common power control channel is also used to provide information used by the mobile stations for purposes other than the power control operation of each mobile station. In one embodiment, the information used for purposes other than power control operation comprises information instruction the mobile station to transition to an active state. In another embodiment, the information used for non-power control purposes is transmitted to mobile stations during periods in which the power control information is not being transmitted. Using a common power control channel in this manner substantially reduces the resources consumed by a mobile station while operating in a stand-by state.

Method and apparatus for provision of non-power control information through a power control channel to a mobile station

Preferred embodiments of a method and an apparatus for controlling power during a dispatch group call in a wireless communication system are described. A base station ( ) monitors for a transmission from a plurality of mobile stations ( ) via a first communication resource during a time period. The base station ( ) adjusts transmission power associated with a second communication resource based on the transmission from the plurality of mobile stations ( ) via the first communication resource. Further, the base station ( ) determines whether the transmission power associated with the second communication resource is above a transmission power threshold. In response to a failure to receive the transmission from the plurality of mobile stations ( ) via the first communication resource during the time period and a failure to detect the transmission power associated with the second communication resource being above the power threshold, the base station ( ) terminates transmissions to the plurality of mobile stations ( ) via the second communication resource.

Method and apparatus for controlling power during a dispatch group call

A method and apparatus for long code generation in synchronous, multi-chip rate systems, wherein a first code sequence having a first bit rate, and a second code sequence having the first bit rate, the second code sequence being a time delay of the first code sequence, are multiplexed together, producing a desired long code.

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Arlington Heights, IL, United States of America

Frank Fei Zhou