Method for providing high speed packet data services for a wirel

Details Method for providing high speed packet data services for a wirel Method for providing high speed packet data services for a wirel

1996-08-22

1998-09-08

Pham, Chi H.

Multiplex communications

Communication over free space

Combining or distributing information via code word channels...

370335, 370320, 375200, 375202, 375206, H04B 7216, H04B 1500

Patent

active

058055851

ABSTRACT:
A low cost solution for providing wireless multi-rate packet data communications between a transmitting unit and a receiving unit on a single spread spectrum channel. The transmitting unit and receiving unit are operable to change communications modes at any given time to provide packet data communications at any given data rate for any given duration. In general, the transmitting unit is operable to change the coding gain of the transmitted spread spectrum to establish a communications mode providing a given data rate for communication to the receiving unit. In one embodiment, the transmitting unit first establishes a regular communications mode, wherein the transmitting unit generates a spread spectrum packet data signal having a high coding gain, thus providing low rate, highly reliable communications over the channel. Then, at any given time, the transmitting unit sends an escape sequence instructing the receiver to switch to a temporary communications mode, wherein the transmitting unit generates a signal having a lower coding gain, and thus provide a higher data rate for such user services requiring high rate communications.

REFERENCES:
patent: 5535239 (1996-07-01), Padovani et al.
patent: 5550811 (1996-08-01), Kaky et al.
patent: 5559789 (1996-09-01), Nakano et al.
patent: 5594754 (1997-01-01), Dohi et al.
patent: 5604766 (1997-02-01), Dohi et al.
patent: 5619524 (1997-04-01), Ling et al.
patent: 5623485 (1997-04-01), Bi

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