>> My real concern is that Qcom will not be at the 4G party with a full platter of patents...
A full platter starts with a single patent ;-).
United States Patent 6,282,168
Vijayan , et al. August 28, 2001
Bit interleaving for orthogonal frequency division multiplexing in the transmission of digital signals
Abstract
In an orthogonal frequency division multiplexing (OFDM) system which uses an outer Reed-Solomon encoder and interleaver an inner convolutional encoder, after the inner convolutional encoding the data bits are interleaved, and then grouped into symbols, each symbol having "m" bits. After grouping, the symbols are mapped to a complex plane using quadrature amplitude modulation (QAM). Thus, bits, not symbols, are interleaved by the inner interleaver. A receiver performs a soft decision regarding the value of each bit in each complex QAM symbol received.
Inventors: Vijayan; Rajiv (San Diego, CA); Odenwalder; Joseph P. (Del Mar, CA); Wolf; Jack K. (La Jolla, CA); Lee; Chong U. (San Diego, CA); Zehavi; Ephraim (Haifa, IL)
Assignee: Qualcomm Inc. (San Diego, CA)
164.195.100.11 |
