Cellular system hand-off protocol

Telecommunications – Radiotelephone system – Zoned or cellular telephone system

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Details

455435, 455439, 370331, 375202, H04B 722

Patent

active

060885912

ABSTRACT:
A cellular communication system hand-off protocol which helps minimize down time associated with a mobile device roaming among different cells in which different cells employ different communication channels (e.g., different frequency hopping sequences). In a preferred embodiment, each base station is configured to communicate its own particular hopping sequence to all other base stations via the system backbone. Each base station then provides to mobile devices which are registered thereto information regarding the particular hopping sequences employed by other base stations servicing cells into which the mobile device may roam. Such information includes the particular hopping sequences together with an indication of what location in the sequence the base stations are currently at in any given time. In addition, such information may include an indication of the intervals at which a base station is configured to transmit a beacon packet (for passive scanning operation), or at what intervals test pattern packets are transmitted to allow for signal quality evaluation.

REFERENCES:
patent: 4554668 (1985-11-01), Deman et al.
patent: 5123029 (1992-06-01), Bantz et al.
patent: 5189734 (1993-02-01), Bailey et al.
patent: 5287384 (1994-02-01), Avery et al.
patent: 5317623 (1994-05-01), Sakamoto et al.
patent: 5325419 (1994-06-01), Connolly et al.
patent: 5329531 (1994-07-01), Dieptraten et al.
patent: 5373503 (1994-12-01), Chen
patent: 5386435 (1995-01-01), Cooper et al.
patent: 5418838 (1995-05-01), Havermans et al.
patent: 5425049 (1995-06-01), Dent
patent: 5446769 (1995-08-01), Shaver et al.
patent: 5499387 (1996-03-01), Chambert
patent: 5519706 (1996-05-01), Bantz et al.
patent: 5574979 (1996-11-01), West
patent: 5619493 (1997-04-01), Ritz et al.
patent: 5655217 (1997-08-01), Lemson
patent: 5737358 (1998-04-01), Ritz et al.
patent: 5748669 (1998-05-01), Yada
patent: 5771353 (1998-06-01), Eggleston et al.
patent: 5774461 (1998-06-01), Hyden et al.
patent: 5781536 (1998-07-01), Anmadi et al.
patent: 5794145 (1998-08-01), Milam
patent: 5848064 (1998-12-01), Cowan
patent: 5862142 (1999-01-01), Takiyasu et al.
IPCCC '92, pp. 0255-0259, "A Hybrid Indoor Data Network with Radio and Wire Performance Evaluation in a Rayleigh Channel" by Kaname Arai, Hiroshi Shigeno, Teruo Yokoyama, Yutaka Matsushita.

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