WO2003005757A1 - Cdma communication method using a cross-correlation suppression type spread series set - Google Patents

Cdma communication method using a cross-correlation suppression type spread series set Download PDF

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Publication number
WO2003005757A1
WO2003005757A1 PCT/JP2002/006633 JP0206633W WO03005757A1 WO 2003005757 A1 WO2003005757 A1 WO 2003005757A1 JP 0206633 W JP0206633 W JP 0206633W WO 03005757 A1 WO03005757 A1 WO 03005757A1
Authority
WO
WIPO (PCT)
Prior art keywords
cross
suppression type
communication method
series
cdma communication
Prior art date
Application number
PCT/JP2002/006633
Other languages
French (fr)
Japanese (ja)
Inventor
Noriyoshi Kuroyanagi
Naoki Suehiro
Original Assignee
Toyo Communication Equipment Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toyo Communication Equipment Co., Ltd. filed Critical Toyo Communication Equipment Co., Ltd.
Publication of WO2003005757A1 publication Critical patent/WO2003005757A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H04B1/709—Correlator structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/7097—Direct sequence modulation interference
    • H04B2201/709709—Methods of preventing interference

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A cross-correlation suppression type spread series set increasing the frequency use efficiency, suppressing the interference noise in a sector or cell as well as interference noise between sectors or cells, and having a low power bandwidth product and a CDMA communication method using the cross-correlation suppression type spread series set. A series belonging to a set of mutually orthogonal series is assigned without overlap as a pilot transmission of each user belonging to the adjacent sector or cell and as a data transmission spread series used by the sector or the cell.
PCT/JP2002/006633 2001-07-06 2002-06-28 Cdma communication method using a cross-correlation suppression type spread series set WO2003005757A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001245008A JP2003023675A (en) 2001-07-06 2001-07-06 Communication system employing cross-correlation suppression type spread system set
JP2001-245008 2001-07-06

Publications (1)

Publication Number Publication Date
WO2003005757A1 true WO2003005757A1 (en) 2003-01-16

Family

ID=19074844

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2002/006633 WO2003005757A1 (en) 2001-07-06 2002-06-28 Cdma communication method using a cross-correlation suppression type spread series set

Country Status (2)

Country Link
JP (1) JP2003023675A (en)
WO (1) WO2003005757A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006121636A (en) * 2004-10-22 2006-05-11 Tama Tlo Kk Data block spread type spread spectrum communications system
EP1845647A1 (en) * 2005-02-02 2007-10-17 Naoki Suehiro Transmitting/receiving method, method for generating signal sequences having no periodic correlations therebetween, and communication apparatus
JP4767700B2 (en) * 2006-01-17 2011-09-07 株式会社エヌ・ティ・ティ・ドコモ Base station and downlink channel transmission method
JP5083402B2 (en) * 2006-01-27 2012-11-28 富士通株式会社 base station
JP4740065B2 (en) * 2006-08-22 2011-08-03 株式会社エヌ・ティ・ティ・ドコモ Base station, mobile station, and pilot channel generation method
WO2008032805A1 (en) * 2006-09-15 2008-03-20 Naoki Suehiro Data transmission method and data transmission device
WO2020209941A1 (en) * 2019-04-08 2020-10-15 Commscope Technologies Llc Method and system for enhancing capacity of radios sharing spectrum

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10145839A (en) * 1996-11-14 1998-05-29 N T T Ido Tsushinmo Kk Pilot channel transmitting method for cdma mobile communication system
JPH10285136A (en) * 1997-04-01 1998-10-23 Kazuo Tsubouchi Spread spectrum radio communication system
JPH1198032A (en) * 1997-07-19 1999-04-09 Matsushita Electric Ind Co Ltd Cdma communication equipment and cdam communication method
JP2001094466A (en) * 1999-09-17 2001-04-06 Katsuyoshi Azeyanagi Cdma communication system employing code sequence set with noncross-correlation area

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10145839A (en) * 1996-11-14 1998-05-29 N T T Ido Tsushinmo Kk Pilot channel transmitting method for cdma mobile communication system
JPH10285136A (en) * 1997-04-01 1998-10-23 Kazuo Tsubouchi Spread spectrum radio communication system
JPH1198032A (en) * 1997-07-19 1999-04-09 Matsushita Electric Ind Co Ltd Cdma communication equipment and cdam communication method
JP2001094466A (en) * 1999-09-17 2001-04-06 Katsuyoshi Azeyanagi Cdma communication system employing code sequence set with noncross-correlation area

Also Published As

Publication number Publication date
JP2003023675A (en) 2003-01-24

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