Radio communication system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8228939
SERIAL NO

09630896

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A radio communication system has a random access channel for the transmission of data (214) from a secondary station to a primary station. Such a channel is intended for use by secondary stations having packets of data (214) to transmit to a primary station while not actually engaged in a call. The primary station transmits a random access channel availability (AV) message (302) once per frame to inform secondary stations about the resources currently available. Hence a secondary station can select a channel known to be free. If no channels are available the secondary station can avoid a wasted access attempt.

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Patent Owner(s)

  • SHARP CORPORATION

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hunt, Bernard Red Hill, GB 52 800
Moulsley, Timothy J Caterham, GB 166 2303

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