Multiplex communications – Wide area network – Packet switching
Patent
1994-03-29
1995-06-27
Hsu, Alpus
Multiplex communications
Wide area network
Packet switching
370 29, 370 50, 370 691, 370 951, 379 60, 455 332, 455 342, H04J 316, H04Q 734
Patent
active
054286018
ABSTRACT:
A method of operating a communications system, particularly a FDM-TDD cordless telephony system, in which, in order to expedite handover, a portable secondary station builds up a record of the status and quality of the other FDM channels in the system by every 1 in n (where n is an integer greater than one) TDD frames monitoring another FDM channel. The value of n is adaptive in that, as the quality of its existing channel deteriorates, the value of n decreases, thereby updating its record more rapidly. At handover, the secondary station is able to choose immediately an acceptable alternative channel, thereby avoiding the time overhead of scanning all the other FDM channels.
REFERENCES:
patent: 4754450 (1988-06-01), Lynk, Jr. et al.
patent: 4866710 (1989-09-01), Schaeffer
patent: 5042082 (1991-08-01), Dahlin
CT2 Plus, A Proposal for a Canadian Common Raido Interface Standard, Issue 1.2, Jul. 1990, Publisher: Bell Northern Research.
MPT 1375: Common Air Interface, May 1989 ISBN 1-870837-86-X; pp. i-vi; 1-6; 2-1 through 2-39; 3-1 through 3-34; 4-1 through 4-26.
Barschall Anne E.
Hsu Alpus
U.S. Philips Corporation
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