Transmitter and method for transmitting information packets with

Details Transmitter and method for transmitting information packets with Transmitter and method for transmitting information packets with

1996-04-26

1997-08-12

Ton, Dang

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

375347, 455 63, H04B 712

Patent

active

056573251

ABSTRACT:
The present invention provides an improved wireless transmitter and method for transmitting incremental redundancy. In one illustrative embodiment of the present invention, switched antenna diversity is used in conjunction with punctured error correction codes to provide an independently fading channel for the punctured bits. In this embodiment, the transmitter includes an error correction encoder which outputs a punctured packet and punctured bits encoded from the information packet. The transmitter further includes a modulator for modulating the punctured packet and punctured bits, a first antenna for transmitting the modulated punctured packet to a receiver, and a second antenna for transmitting one or more of the punctured bits to the receiver, in response to a negative acknowledgment received by the transmitter. The first and second antennas in this embodiment are positioned to provide first and second channels having independent fading characteristics.

REFERENCES:
patent: 5416787 (1995-05-01), Kodama et al.

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