EP 0700612 A4 19980930 - METHOD AND APPARATUS FOR TIME DIVISION MULTIPLEXING THE USE OF SPREADING CODES IN A COMMUNICATION SYSTEM
Title (en)
METHOD AND APPARATUS FOR TIME DIVISION MULTIPLEXING THE USE OF SPREADING CODES IN A COMMUNICATION SYSTEM
Title (de)
VERFAHREN UND VORRICHTUNG ZUM ZEITGEMULTIPLEXTEN GEBRAUCH VON SPREIZCODES IN EINEM NACHRICHTENÜBERTRAGUNGSSYSTEM
Title (fr)
PROCEDE ET APPAREIL DE MULTIPLEXAGE TEMPOREL RELATIF A L'UTILISATION DE CODES D'ETALEMENT DANS UN SYSTEME DE COMMUNICATION
Publication
Application
Priority
- US 9500233 W 19950109
- US 20159694 A 19940225
Abstract (en)
[origin: WO9523464A1] A communication system time division multiplexes the use of spreading codes. The communication system accepts information (301, 302) from at least two users and codes each users information utilizing error correction coders (303, 306). The coded information is then time multiplexed by a multiplexer (312) into timeslots. The output of the multiplexer (312) is spread by a common spreading (Walsh) code, scrambled with a pseudo-noise sequence, and conveyed to a modulator for transmission. In this manner, information for two users may be transmitted utilizing only a single spreading (Walsh) code.
IPC 1-7
IPC 8 full level
H04B 1/707 (2011.01); H04J 3/04 (2006.01); H04J 11/00 (2006.01); H04J 13/16 (2011.01); H04J 13/18 (2011.01); H04J 13/00 (2011.01)
CPC (source: EP)
H04J 13/16 (2013.01); H04J 13/004 (2013.01)
Citation (search report)
- No further relevant documents disclosed
- See references of WO 9523464A1
Designated contracting state (EPC)
DE GB SE
DOCDB simple family (publication)
WO 9523464 A1 19950831; CA 2158269 A1 19950831; EP 0700612 A1 19960313; EP 0700612 A4 19980930; JP H08509590 A 19961008
DOCDB simple family (application)
US 9500233 W 19950109; CA 2158269 A 19950109; EP 95907342 A 19950109; JP 52233295 A 19950109