Title:
CDMA SPREAD METHOD AND CDMA TERMINAL
Document Type and Number:
Japanese Patent JP2002033716
Kind Code:
A
Abstract:
To provide a CDMA spread method and a CDMA terminal by which an orthogonal code satisfying the condition of an HPSk(hybrid phase shift keying) can optimally be assigned.
A 0-th orthogonal code (Cch,256,0) for a spreading factor 256 is assigned to a control channel (DPCCH). Furthermore, a 1st orthogonal code (Cch,4,1) for a spreading factor 4 is assigned to a 1st data channel (DPDCH1) and a 2nd data channel (DPDCH2), and a 0-th orthogonal code (Cch,4,1) for a spreading factor 4 is assigned to a 3rd data channel (DPDCH3), they are multiplied and are subjected to multi-code multiplexing and the resulting code is transmitted.
Inventors:
IIDA YUKIO
Application Number:
JP2000216776A
Publication Date:
January 31, 2002
Filing Date:
July 18, 2000
Export Citation:
Assignee:
SONY CORP
International Classes:
H04J13/00; H04B7/26; H04J11/00; H04J13/18; H04W72/04; H04W88/02; (IPC1-7): H04J13/04; H04B7/26
Attorney, Agent or Firm:
Kazuto Izumi (1 person outside)
Previous Patent: MULTICARRIER COMMUNICATION EQUIPMENT AND MULTICARRIER COMMUNICATION METHOD
Next Patent: INVERSE MULTIPLEXER CONTROL SYSTEM
Next Patent: INVERSE MULTIPLEXER CONTROL SYSTEM