Multiplex communications – Communication over free space – Combining or distributing information via code word channels...
Reexamination Certificate
2005-10-18
2005-10-18
Rao, Seema S. (Department: 2666)
Multiplex communications
Communication over free space
Combining or distributing information via code word channels...
C455S522000, C455S069000
Reexamination Certificate
active
06956840
ABSTRACT:
A technique for implementing closed loop power control in a Code Division Multiple Access (CDMA) type wireless system which dynamically assigns coded channels on a demand basis. The technique maintains a proper power level, even when no traffic channels are allocated, by determining a link quality metric based upon the reverse link power received. This determination is made in response to a heartbeat signal sent at a rate which is only sufficiently fast to maintain code phase lock, for example, depending upon the expected maximum rate at which the subscriber unit will travel.
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Hamilton Brook Smith & Reynolds P.C.
Harper Kevin C.
IPR Licensing Inc.
Rao Seema S.
LandOfFree
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