Wireless base station and a wireless phone

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

Reexamination Certificate

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Details

C455S562100, C455S513000, C370S329000, C370S342000, C375S267000, C375S347000

Reexamination Certificate

active

07085572

ABSTRACT:
On receiving a link channel assignment request or a link channel reassignment request from a mobile station, a wireless base station specifies a unique word (UW) that is not assigned to any other mobile stations, and sends a channel assignment notification containing the specified UW to the requesting mobile station. The base station also sends the specified UW to its user processing unit, which extracts a signal sent from the requesting mobile station and generates a signal to be sent to this mobile station. The base station then defines a reference signal based on the sent UW, and adjusts each weight vector by using the defined reference signal and a signal estimated to have been sent from the requesting mobile station, thereby directing the directivity pattern to the requesting mobile station.

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patent: 2002-508915 (2002-03-01), None

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