Title:
【発明の名称】通信システムにおいて多重拡散符号を利用する方法および装置
Document Type and Number:
Japanese Patent JPH08509591
Kind Code:
A
Abstract:
A communication system utilizes multiple spreading codes to transmit high data rate information. The system codes high data rate user information (201) and partitions the coded information (202) into blocks comprised of two bits, B1 and B2. Based on the representation of bits B1 and B2, the system chooses one of a possible four spreading codes (W1 and W2 and their phase reversals W1' and W2') to be utilized for transmission. Once received, the transmitted signal is input into correlators (306, 309) specific to each spreading code W1 and W2, and the maximum absolute value output from the correlators (306, 309) is determined. From this determination, the transmitted spreading code W1, W2, W1' or W2' is determined. The use of multiple spreading codes allows the for the transmission of high data rate information without altering the wireless air interface of the communication system.
Inventors:
Cot gin, michael dee
Application Number:
JP52233395A
Publication Date:
October 08, 1996
Filing Date:
January 09, 1995
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H04B1/707; H04J11/00; H04L1/00; H04J13/00; H04J13/12; H04B1/709; (IPC1-7): H04J13/02; H04J11/00; H04L1/00
Attorney, Agent or Firm:
Masanori Honjo (1 person outside)