AR017048A1 - METHODS FOR TELECOMMUNICATION - Google Patents

METHODS FOR TELECOMMUNICATION

Info

Publication number
AR017048A1
AR017048A1 ARP980104392A ARP980104392A AR017048A1 AR 017048 A1 AR017048 A1 AR 017048A1 AR P980104392 A ARP980104392 A AR P980104392A AR P980104392 A ARP980104392 A AR P980104392A AR 017048 A1 AR017048 A1 AR 017048A1
Authority
AR
Argentina
Prior art keywords
codes
orthogonal
methods
telecommunication
assigned
Prior art date
Application number
ARP980104392A
Other languages
Spanish (es)
Original Assignee
Ericsson Telefon Ab L M
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 Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of AR017048A1 publication Critical patent/AR017048A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H04J13/18—Allocation of orthogonal codes
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/0022—PN, e.g. Kronecker
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • 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
    • H04B2201/696—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to Dowlink

Abstract

La presente se refiere a los métodos para asignar codigos de dispersion a las conexiones de enlace directo con velocidad de bits variable en los sistemasde comunicacion DS-CDMA. Se le asigna a una primera conexion una primera cantidad de codigos (x)desde un primer conjunto (S1) de codigos ortogonales. Se leasigna a una segunda conexion una segunda cantidad de codigos (y). Se toma una primera parte (y-k1) de la segunda cantidad de codigos (y) desde el primerconjunto (S1) de codigos ortogonales.Se toma un segunda parte (k1) de la segunda cantidad de codigos (y) desde un segundo conjunto (S2) de codigos ortogonalesque es no-ortogonal al primer conjunto (S1)This refers to the methods for assigning scatter codes to direct link connections with variable bit rate in DS-CDMA communication systems. A first number of codes (x) from a first set (S1) of orthogonal codes is assigned to a first connection. A second number of codes (and) is assigned to a second connection. A first part (y-k1) of the second number of codes (y) is taken from the first set (S1) of orthogonal codes. A second part (k1) of the second number of codes (y) is taken from a second set (S2) of orthogonal codes which is non-orthogonal to the first set (S1)

ARP980104392A 1997-09-02 1998-09-02 METHODS FOR TELECOMMUNICATION AR017048A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9703161A SE9703161L (en) 1997-09-02 1997-09-02 Procedure for telecommunications

Publications (1)

Publication Number Publication Date
AR017048A1 true AR017048A1 (en) 2001-08-22

Family

ID=20408114

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP980104392A AR017048A1 (en) 1997-09-02 1998-09-02 METHODS FOR TELECOMMUNICATION

Country Status (13)

Country Link
EP (1) EP1010266A1 (en)
JP (1) JP2001515302A (en)
KR (1) KR20010023600A (en)
CN (1) CN1118963C (en)
AR (1) AR017048A1 (en)
AU (1) AU751483B2 (en)
BR (1) BR9811428A (en)
CA (1) CA2299297A1 (en)
FI (1) FI20000460A (en)
SE (1) SE9703161L (en)
TW (1) TW393843B (en)
WO (1) WO1999012284A1 (en)
ZA (1) ZA986672B (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI982203A (en) * 1998-10-09 2000-04-10 Nokia Networks Oy Method and generator for generating an orthogonal spreading code in a CDMA radio system
ATE557487T1 (en) 1999-07-07 2012-05-15 Samsung Electronics Co Ltd DEVICE AND METHOD FOR GENERATING SCRAPPING CODES IN A UMTS MOBILE MESSAGE TRANSMISSION SYSTEM
KR100396653B1 (en) * 1999-12-30 2003-09-02 엘지전자 주식회사 Transmission method for multiple chip rate in mobile communications system
JP3565102B2 (en) 1999-08-13 2004-09-15 日本電気株式会社 Downlink spreading code allocation method and base station
KR100429545B1 (en) * 1999-08-17 2004-04-28 삼성전자주식회사 Method for communicating scrambling code id in mobile communication system
FR2820933B1 (en) * 2001-02-09 2003-05-30 Sagem TEST METHOD AND TOOL FOR CELLULAR MULTIPLEXED CELLULAR RADIO TELEPHONY NETWORK
KR100449546B1 (en) * 2001-10-08 2004-09-21 주식회사 카서 Code select cdma modulation and demodulation method and device thereof
KR100444845B1 (en) * 2002-04-12 2004-08-21 주식회사 카서 Coding method and apparatus for constant amplitude transmission in code select cdma communication system and device thereof
FR2844134B1 (en) * 2002-09-04 2006-01-13 Nortel Networks Ltd METHOD OF ALLOCATING RESOURCES IN A RADIO COMMUNICATION SYSTEM WITH SPATIAL DIVISION AND EQUIPMENT FOR IMPLEMENTING THE METHOD.
WO2006004550A2 (en) 2004-07-06 2006-01-12 Telefonaktiebolaget Lm Ericsson (Publ) Non-contiguous variable length orthogonal codes
KR100662506B1 (en) * 2004-08-04 2006-12-28 한국전자통신연구원 Apparatus and its method for deciding user code according to number of connecting user and, apparatus and its method for generating user code using the same in quasi-synchronous cdma system
CN1921362B (en) * 2005-08-23 2011-09-21 中兴通讯股份有限公司 Orthogonal variable spread-spectrum code distribution method in code division multiple access communication system
CN101388685B (en) * 2007-09-12 2014-02-19 中兴通讯股份有限公司 Code resource management method
GB2495709B (en) * 2011-10-17 2014-12-10 Aetheric Engineering Ltd Communication system and method of operating the same
EP2739104A1 (en) * 2012-11-28 2014-06-04 Alcatel-Lucent A cellular telecommunications base station and a method of allocating a spreading code

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5210770A (en) * 1991-09-27 1993-05-11 Lockheed Missiles & Space Company, Inc. Multiple-signal spread-spectrum transceiver
MY112371A (en) * 1993-07-20 2001-05-31 Qualcomm Inc System and method for orthogonal spread spectrum sequence generation in variable data rate systems
US5515396A (en) * 1994-02-25 1996-05-07 Motorola, Inc. Method and apparatus for selecting a spreading code in a spectrum spread communication system
FI955113A (en) * 1995-10-26 1997-04-27 Nokia Mobile Phones Ltd Procedure for data communication, transmitters and receivers

Also Published As

Publication number Publication date
SE9703161D0 (en) 1997-09-02
KR20010023600A (en) 2001-03-26
BR9811428A (en) 2000-08-22
SE9703161L (en) 1999-03-03
TW393843B (en) 2000-06-11
AU9012798A (en) 1999-03-22
WO1999012284A1 (en) 1999-03-11
AU751483B2 (en) 2002-08-15
JP2001515302A (en) 2001-09-18
ZA986672B (en) 1999-04-01
CN1118963C (en) 2003-08-20
CA2299297A1 (en) 1999-03-11
CN1269927A (en) 2000-10-11
FI20000460A (en) 2000-02-29
EP1010266A1 (en) 2000-06-21

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