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특허 상세정보

Systems and methods for communicating spread spectrum signals using variable signal constellations

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) H04B-001/69   
미국특허분류(USC) 375/140; 375/146; 375/147
출원번호 US-0686304 (2000-10-11)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Myers Bigel Sibley &
인용정보 피인용 횟수 : 56  인용 특허 : 28
초록

According to embodiments of the invention, a communications system includes an error correction encoder that error correction encodes a bitstream according to an error correction code. The system also includes a variable symbol generator that generates a symbol according to a selected one of a plurality of selectable signal constellations from a group of bits of the error correction encoded bitstream. The system further includes a spreader that spreads the symbol according to a spreading code, and a transmitter that transmits the spread symbol in a commu...

대표
청구항

1. A communications system for communicating with a plurality of terminals, the system comprising:a network station; a variable error correction encoder that error correction encodes respective bitstreams for respective ones of the plurality of terminals according to respective selected coding rates of a plurality of coding rates; a variable symbol generator that maps respective ones of the error correction coded bitstreams to respective symbol streams according to respective signal constellations of a plurality of signal constellations of various orders...

이 특허에 인용된 특허 (28)

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이 특허를 인용한 특허 피인용횟수: 56

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