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

Info

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

Links

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
JP2001-245008 2001-07-06
JP2001245008A JP2003023675A (en) 2001-07-06 2001-07-06 Communication system employing cross-correlation suppression type spread system set

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 (6)

* 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
JP5303806B2 (en) * 2006-09-15 2013-10-02 直樹 末広 Data transmission method and data transmission apparatus

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

Similar Documents

Publication Publication Date Title
WO2007024931A3 (en) Reverse link power control for an ofdma system
WO1999066645A3 (en) Quadriphase spreading codes in code division multiple access communications
TW200620856A (en) Interference control via selective blanking/attenuation of interfering transmissions
WO2002087176A3 (en) Network channel access protocol - interference and load adaptive
Wei et al. Interference-free broadband single-and multicarrier DS-CDMA
WO2007126373A3 (en) Power control using bit rate and outstanding user traffic
WO2003092205A3 (en) Establishing an ad hoc network
WO2004036850A3 (en) Methods and apparatuses for reducing interference using frequency division multiple access
WO2003005757A1 (en) Cdma communication method using a cross-correlation suppression type spread series set
CN103501186B (en) Mutual-complementing code CDMA (Code Division Multiple Access) system of time-frequency mixing separation sub-code structure
EP0849905A3 (en) CDMA Multi-code transmitter
WO2002047301A3 (en) Wireless spread spectrum system
CN101355373B (en) Method for generating signal of non-interference quasi-synchronous CDMA communication system
US20030067964A1 (en) Code-division-multiple-access system using zero correlation window
Mishra et al. Performance of pulse shape modulation of UWB signals using composite hermite pulses
CN1917383A (en) Method and device for sending out data in wireless mobile communication system
Assanovich et al. Modification of pulse position modulation for high data UWB systems and multi-user communication
Pramaita et al. Novel Hybrid Orthogonal Large Set Code Sequence for High Density Wireless Networks
Onunkwo et al. On the optimum pulse-position modulation index for ultra-wideband communication
Haque et al. Performance perusal of multiuser MC-CDMA system for Nakagami-m, Rayleigh and Rician fading channel with spreading codes
Merz et al. The optimal MAC layer for low-power UWB is non-coordinated
CN107342786B (en) Signal blind despread method based on ILSP algorithm
CN107294560B (en) Asynchronous short code DS-CDMA signal blind despread method
Al-Adwany A Study on Cell Capacity in WCDMA & TDMA Systems
Seberry et al. Williamson–Hadamard spreading sequences for DS‐CDMA applications

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): CN US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): DE FR GB

121 Ep: the epo has been informed by wipo that ep was designated in this application
122 Ep: pct application non-entry in european phase