Pulse or digital communications – Testing – Data rate
Patent
1995-12-15
1999-11-16
Vo, Don N.
Pulse or digital communications
Testing
Data rate
375227, 455434, 455437, 455 674, 370251, H04B 346, H04B 1700
Patent
active
059870621
ABSTRACT:
A wireless local area network allows roaming of a mobile unit to allow it to serially associate with a number of access points of the network fixed backbone. This roaming is supported by an improved measurement of communications link quality, which includes calculating a mean error free length of a test pattern broadcast by each access point and received by a mobile unit. The test pattern is a digital data message. Thus an accurate measurement of link quality is provided which allows a mobile unit to determine whether it should change its association to another access point having improved communications link quality. Further, a load balancing process is provided to balance the communications load amongst a variety of access points, by allowing mobile units also to switch their association with access points in accordance with a current total data rate at any given access point and also considering the number of currently high data rate mobile units associated with a particular access point at any one time.
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patent: 5249290 (1993-09-01), Heizer
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patent: 5548821 (1996-08-01), Coveley
patent: 5634204 (1997-05-01), Takahashi et al.
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Clements Ken
Engwer Darwin A.
Perrin Daniel S.
Zweig Jonathan M.
Chen Tom
Netwave Technologies, Inc.
Vo Don N.
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