公开(公告)号：HK1047176A1

公开(公告)日：2003-02-07

申请号：HK02108771

申请日：2002-12-03

Applicant: QUALCOMM INC

Inventor： LUPIN EDWARD D ,  SINDHUSHAYANA NAGABUSHANA T

IPC: G06F20060101 ,  G06F7/58 ,  H03K3/84

Abstract: The invention presented is a novel method and apparatus for generating PN sequences with an arbitrary number of bits, where the number of bits is provided in parallel with each clock pulse. This allows the sequences to be generated at high speed when needed, and allows parallel processing in the acquisition and demodulation processes. In the invention, the initial values of states are loaded into registers of a parallel PN generator, which immediately generates the next n bits of the PN sequence, where n is an arbitrary number dependent on performance required. Then, a first sub-part of the PN generator of the present invention receives the present state of the PN generator and outputs the state of the PN generator n bits in the future. The output of this first sub-part is then provided to a second sub-part of the generator, which generates the next n bits of the PN sequence. In this fashion, the entire PN sequence can be continuously generated. The PN generator also contains a control processor, coordinating co-operation between sub-systems.

公开(公告)号：HK1063698A1

公开(公告)日：2005-01-07

申请号：HK04106315

申请日：2004-08-24

Applicant: QUALCOMM INC

Inventor： LING FUYUN ,  SINDHUSHAYANA NAGABUSHANA T ,  WALTON JAY R ,  WALLACE MARK ,  FERNANDEZ IVAN

IPC: H04J11/00 ,  H04L20060101 ,  H04B7/04 ,  H04J99/00 ,  H04L1/00 ,  H04L27/26

Abstract: Decoding techniques for a (e.g., OFDM) communication system capable of transmitting data on a number of transmission channels. The received data is processed by generating log likelihood ratio streams, processing these streams and decoding the processed streams to obtain information bit streams.