CN100505602C - 用来增加移动通信系统的信道容量的装置和方法 - Google Patents
用来增加移动通信系统的信道容量的装置和方法 Download PDFInfo
- Publication number
- CN100505602C CN100505602C CNB031543251A CN03154325A CN100505602C CN 100505602 C CN100505602 C CN 100505602C CN B031543251 A CNB031543251 A CN B031543251A CN 03154325 A CN03154325 A CN 03154325A CN 100505602 C CN100505602 C CN 100505602C
- Authority
- CN
- China
- Prior art keywords
- walsh code
- walsh
- output
- unit
- complex function
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Fee Related
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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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J13/00—Code division multiplex systems
- H04J13/0007—Code type
- H04J13/004—Orthogonal
- H04J13/0048—Walsh
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/20—Modulator circuits; Transmitter circuits
- H04L27/2032—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner
- H04L27/2053—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases
- H04L27/206—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers
- H04L27/2067—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states
- H04L27/2078—Modulator circuits; Transmitter circuits for discrete phase modulation, e.g. in which the phase of the carrier is modulated in a nominally instantaneous manner using more than one carrier, e.g. carriers with different phases using a pair of orthogonal carriers, e.g. quadrature carriers with more than two phase states in which the phase change per symbol period is constrained
-
- 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
- H04B2201/70706—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation with means for reducing the peak-to-average power ratio
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR48420/2002 | 2002-08-16 | ||
KR10-2002-0048420A KR100452512B1 (ko) | 2002-08-16 | 2002-08-16 | 채널용량 개선 왈쉬코드 확산장치 및 그 운용방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1487688A CN1487688A (zh) | 2004-04-07 |
CN100505602C true CN100505602C (zh) | 2009-06-24 |
Family
ID=30768219
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB031543251A Expired - Fee Related CN100505602C (zh) | 2002-08-16 | 2003-08-15 | 用来增加移动通信系统的信道容量的装置和方法 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7369486B2 (zh) |
EP (1) | EP1389844B1 (zh) |
JP (1) | JP3824598B2 (zh) |
KR (1) | KR100452512B1 (zh) |
CN (1) | CN100505602C (zh) |
AT (1) | ATE375642T1 (zh) |
DE (1) | DE60316753T2 (zh) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7519105B2 (en) | 2004-06-16 | 2009-04-14 | Mitsubishi Denki Kabushiki Kaisha | Channel code assignment according to gain factor |
JP4401413B2 (ja) * | 2005-09-29 | 2010-01-20 | 富士通株式会社 | 送受信装置及び送受信方法 |
GB2430844B (en) * | 2005-10-03 | 2008-01-02 | Motorola Inc | A transmitter, cellular communication system and method of transmitting therefor |
GB0623481D0 (en) * | 2006-11-24 | 2007-01-03 | Imp Innovations Ltd | Improved methods and apparatus for transmitting and receiving data |
WO2009041029A1 (ja) * | 2007-09-25 | 2009-04-02 | Panasonic Corporation | 無線通信装置および応答信号拡散方法 |
CN103560852B (zh) | 2007-10-29 | 2016-01-20 | 松下电器(美国)知识产权公司 | 基站装置和无线通信方法 |
BRPI0818271B1 (pt) | 2007-10-29 | 2020-10-20 | Optis Wireless Technology, Llc. | dispositivo de comunicação por rádio e método de controle de constelação |
KR101781847B1 (ko) * | 2009-09-07 | 2017-09-26 | 엘지전자 주식회사 | 무선 통신 시스템에서 참조신호를 송수신하기 위한 방법 및 장치 |
WO2016069010A1 (en) | 2014-10-31 | 2016-05-06 | Hewlett Packard Enterprise Development Lp | Adaptive cooling assembly |
CN106161299B (zh) * | 2015-03-24 | 2019-02-15 | 中兴通讯股份有限公司 | 一种数据传输方法及装置 |
CN109600329A (zh) * | 2018-11-01 | 2019-04-09 | 重庆邮电大学 | 基于Walsh码的多进制高效混沌通信系统 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5926500A (en) * | 1996-05-28 | 1999-07-20 | Qualcomm Incorporated | Reduced peak-to-average transmit power high data rate CDMA wireless communication system |
US5991262A (en) * | 1997-03-31 | 1999-11-23 | Motorola, Inc. | Method and apparatus for reducing peak-to-average power ratio of a composite carrier signal |
US20010055282A1 (en) | 1997-12-15 | 2001-12-27 | Douglas Knisely | Reducing peak to average ratio of transmit signal by intentional phase rotating among composed signals |
US6310869B1 (en) * | 1998-08-31 | 2001-10-30 | Qualcomm Incorporated | Method and apparatus for reducing amplitude variations and interference in communication signals, such as in wireless communication signals employing inserted pilot symbols |
US6721349B1 (en) * | 1999-01-28 | 2004-04-13 | Qualcomm Incorporated | Method and apparatus for reducing peak-to-average ratio in a CDMA communication system |
US6549564B1 (en) | 1999-04-08 | 2003-04-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Random access in a mobile telecommunications system |
US6515978B1 (en) * | 1999-04-19 | 2003-02-04 | Lucent Technologies Inc. | Methods and apparatus for downlink diversity in CDMA using Walsh codes |
US7123579B1 (en) * | 1999-08-04 | 2006-10-17 | Lg Electronics Inc. | Method of transmitting non-orthogonal physical channels in the communications system |
KR20010100244A (ko) * | 2000-03-25 | 2001-11-14 | 서평원 | 통신 시스템의 송/수신 장치 |
JP2002033716A (ja) | 2000-07-18 | 2002-01-31 | Sony Corp | Cdma拡散方法およびcdma端末装置 |
KR100705925B1 (ko) | 2000-11-28 | 2007-04-11 | 엘지전자 주식회사 | 라스 코드분할다중접속 확산 방법 |
-
2002
- 2002-08-16 KR KR10-2002-0048420A patent/KR100452512B1/ko not_active IP Right Cessation
-
2003
- 2003-04-30 JP JP2003126085A patent/JP3824598B2/ja not_active Expired - Fee Related
- 2003-07-30 DE DE2003616753 patent/DE60316753T2/de not_active Expired - Lifetime
- 2003-07-30 AT AT03016637T patent/ATE375642T1/de not_active IP Right Cessation
- 2003-07-30 EP EP20030016637 patent/EP1389844B1/en not_active Expired - Lifetime
- 2003-07-31 US US10/630,721 patent/US7369486B2/en not_active Expired - Fee Related
- 2003-08-15 CN CNB031543251A patent/CN100505602C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1389844B1 (en) | 2007-10-10 |
JP3824598B2 (ja) | 2006-09-20 |
US20040032838A1 (en) | 2004-02-19 |
KR100452512B1 (ko) | 2004-10-13 |
US7369486B2 (en) | 2008-05-06 |
DE60316753D1 (de) | 2007-11-22 |
KR20040016167A (ko) | 2004-02-21 |
DE60316753T2 (de) | 2008-07-17 |
JP2004080734A (ja) | 2004-03-11 |
EP1389844A1 (en) | 2004-02-18 |
ATE375642T1 (de) | 2007-10-15 |
CN1487688A (zh) | 2004-04-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C06 | Publication | ||
PB01 | Publication | ||
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: AOPU DISI CELLULAR TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: LG ELECTRONICS INC. Effective date: 20150113 |
|
C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150113 Address after: American Texas Patentee after: Ao Pudisi cellular technology Co., Ltd Address before: Seoul, South Kerean Patentee before: LG Electronics Inc. |
|
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090624 Termination date: 20170815 |