Pulse or digital communications – Spread spectrum – Frequency hopping
Reexamination Certificate
2005-06-15
2009-12-29
Ghebretinsae, Temesghen (Department: 2611)
Pulse or digital communications
Spread spectrum
Frequency hopping
C375S135000, C375S358000, C455S446000, C455S447000
Reexamination Certificate
active
07639727
ABSTRACT:
A method and system are provided which combine (i) adaptive multi-rate half-rate transmission and (ii) intelligent frequency hopping wherein frequency hopping and intelligent underlay overlay are used simultaneously. In the latter, frequency hopping is controlled on a frequency group by frequency group basis, and one frequency hopping group is made up of one or more regular transmitters of a cell and another frequency hopping group is made up of one or more super reuse (super layer) transmitters of the cell. A wireless terminal (e.g., handset) is used in determining the carrier to interference (C/I) ratio for a received signal. A determination is then made as to whether the C/I ratio is acceptable for super layer transmission, and, if the ratio is acceptable, a super reuse transmitter operating in the superlayer range at the half-rate transmission rate is used to transmit a call to the terminal.
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Brisebois Arthur Richard
Rai Paritosh
Cingular Wireless II, L.L.C.
Ghebretinsae Temesghen
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