Title:
【発明の名称】セルラ無線システムにおける同一チャネル干渉の低減方法および低減装置
Document Type and Number:
Japanese Patent JPH11510332
Kind Code:
A
Abstract:
In order to reduce common channel interference in the receivers of base and subscriber stations of a cellular radio system in which radio cells with radio channels of the same frequency are used and signals are transmitted by the so-called JD-CDMA process (joint detection-code division multiple access), so that a plurality of connections is processed in parallel in the same HF band, the useful signals are provided each with a different spread code and are spread by a determined factor around the frequency axis and are decoded again at the receiving site by using said spread code. In the receivers of a radio cell, the spread codes of at least another radio cell that uses the same frequency band are at least partially taken into account during decoding. The invention may be used with future CDMA mobile radio systems.
Inventors:
Gerhard Ritter
Application Number:
JP50709397A
Publication Date:
September 07, 1999
Filing Date:
July 24, 1996
Export Citation:
Assignee:
Siemens Aktiengesellschaft
International Classes:
H04B1/707; H04B7/26; (IPC1-7): H04B7/26; H04J13/02
Attorney, Agent or Firm:
Toshio Yano (2 outside)