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US 2002/0159422 A1Published application
Communication system using OFDM for one direction and DSSS for another direction
AssigneeAdaptix, Inc.
InventorsXiaodong Li, Hui Liu, Wenzhong Zhang
Life of this patent
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Abstract
A method and apparatus for wireless communication are described. In one embodiment, a method for communicating with a subscriber comprises transmitting orthogonal frequency domain multiplexing (OFDM) signals to the subscriber, and receiving direct-sequence spread spectrum (DSSS) signals from the subscriber.
Claims54
A method for communicating with at least one subscriber, the method comprising:
- transmitting orthogonal frequency domain multiplexing (OFDM) signals to the at least one subscriber;
- and
- receiving direct-sequence spread spectrum (DSSS) signals from the at least one subscriber.
A method for communicating with a base station, the method comprising:
- receiving orthogonal frequency domain multiplexing (OFDM) signals from the base station;
- and
- transmitting direct-sequence spread spectrum (DSSS) signals to the base station.
A system comprising:
- a subscriber having
- a DSSS transmitter,
- an OFDM receiver,
- a first antenna coupled to the DSSS transmitter and the OFDM receiver;
- a base station communicably coupled with the subscriber, the base station having
- a DSSS receiver,
- an OFDM transmitter,
- a second antenna coupled to the DSSS receiver and the OFDM transmitter.
5 more elements
A communication network comprising:
- first and second systems, each of the first and second systems including
- a DSSS transmitter,
- a DSSS receiver, and
- an antenna coupled to the DSSS transmitter and DSSS receiver, and further wherein the first system comprises an OFDM transmitter coupled to its antenna and the second system comprises an OFDM receiver coupled to its antenna.
1 more element
Dependencies are inferred from the claim text.