Method for receiving or sending messages

Details Method for receiving or sending messages Method for receiving or sending messages

2005-09-13

2005-09-13

Phu, Phuong (Department: 2631)

Pulse or digital communications

Spread spectrum

Direct sequence

C375S147000, C375S142000, C375S140000, C370S335000, C370S442000, C370S441000

Reexamination Certificate

active

06944210

ABSTRACT:
A method for receiving or transmitting messages wherein the use of shortened spreading codes, especially in the paging channel, for the purpose of correlation in the reception of CDMA signals, provides for power-saving measures such as, for example, the intermittent turn-off of A/D converters or correlators and to preserve the orthogonality of the spreading codes, the spreading codes used are selected in such a manner that, if possible, they do not correlate with the paging channel spreading code.

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