CN1574716A - 时分同步码分多址的信道判断方法 - Google Patents
时分同步码分多址的信道判断方法 Download PDFInfo
- Publication number
- CN1574716A CN1574716A CNA2003101244147A CN200310124414A CN1574716A CN 1574716 A CN1574716 A CN 1574716A CN A2003101244147 A CNA2003101244147 A CN A2003101244147A CN 200310124414 A CN200310124414 A CN 200310124414A CN 1574716 A CN1574716 A CN 1574716A
- Authority
- CN
- China
- Prior art keywords
- channel
- intermediate code
- sequence
- channel value
- value
- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L25/00—Baseband systems
- H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
- H04L25/0202—Channel estimation
- H04L25/0224—Channel estimation using sounding signals
- H04L25/0226—Channel estimation using sounding signals sounding signals per se
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- 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
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/7077—Multi-step acquisition, e.g. multi-dwell, coarse-fine or validation
-
- 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
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- 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
- H04B1/7097—Interference-related aspects
- H04B1/711—Interference-related aspects the interference being multi-path interference
- H04B1/7115—Constructive combining of multi-path signals, i.e. RAKE receivers
- H04B1/7117—Selection, re-selection, allocation or re-allocation of paths to fingers, e.g. timing offset control of allocated fingers
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- 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
- H04B2201/70701—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation featuring pilot assisted reception
Abstract
Description
Claims (2)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR38546/2003 | 2003-06-14 | ||
KR20030038546A KR100575723B1 (ko) | 2003-06-14 | 2003-06-14 | 시분할 동기 코드 분할 방식의 채널 판단 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1574716A true CN1574716A (zh) | 2005-02-02 |
CN100490365C CN100490365C (zh) | 2009-05-20 |
Family
ID=33297403
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003101244147A Expired - Fee Related CN100490365C (zh) | 2003-06-14 | 2003-12-24 | 时分同步码分多址的信道判断方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US20040252793A1 (zh) |
EP (1) | EP1487165A1 (zh) |
JP (1) | JP3917990B2 (zh) |
KR (1) | KR100575723B1 (zh) |
CN (1) | CN100490365C (zh) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100600817B1 (ko) * | 2004-12-09 | 2006-07-18 | 한국전자통신연구원 | 주기적 상관 관계의 특성을 이용한 타이밍 에러 검출 장치및 그 방법 |
KR101138698B1 (ko) * | 2005-11-09 | 2012-04-19 | 엘지전자 주식회사 | 이동통신 시스템에서의 주파수 옵셋 추정 방법 및 그 장치 |
US8358987B2 (en) * | 2006-09-28 | 2013-01-22 | Mediatek Inc. | Re-quantization in downlink receiver bit rate processor |
US8358988B2 (en) * | 2006-09-28 | 2013-01-22 | Mediatek Inc. | Interface between chip rate processing and bit rate processing in wireless downlink receiver |
US20080080542A1 (en) * | 2006-09-28 | 2008-04-03 | Analog Devices, Inc. | Architecture for downlink receiver bit rate processor |
US20080080444A1 (en) * | 2006-09-28 | 2008-04-03 | Analog Devices, Inc. | Transport channel buffer organization in downlink receiver bit rate processor |
US7916841B2 (en) * | 2006-09-29 | 2011-03-29 | Mediatek Inc. | Method and apparatus for joint detection |
US7949925B2 (en) | 2006-09-29 | 2011-05-24 | Mediatek Inc. | Fixed-point implementation of a joint detector |
US8095699B2 (en) * | 2006-09-29 | 2012-01-10 | Mediatek Inc. | Methods and apparatus for interfacing between a host processor and a coprocessor |
US7953958B2 (en) * | 2006-09-29 | 2011-05-31 | Mediatek Inc. | Architecture for joint detection hardware accelerator |
US7924948B2 (en) * | 2006-09-29 | 2011-04-12 | Mediatek Inc. | Pre-scaling of initial channel estimates in joint detection |
CN101257324B (zh) * | 2007-02-28 | 2013-10-09 | 展讯通信(上海)有限公司 | Td-scdma系统中的线性联合信道估计方法 |
WO2009038528A2 (en) * | 2007-09-18 | 2009-03-26 | Telefonaktiebolaget L M Ericsson (Publ) | Reduced interference in an mbms enabled system |
CN102271103B (zh) * | 2011-02-18 | 2014-06-11 | 北京大学 | 一种td-scdma系统中的多小区信道估计方法 |
CN103428121B (zh) * | 2012-05-25 | 2017-05-17 | 展讯通信(上海)有限公司 | 信道估计窗处理方法、装置和接收终端 |
CN105873135B (zh) * | 2015-01-20 | 2019-05-10 | 富士通株式会社 | 多路径信道的参数确定方法、装置以及通信系统 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5251233A (en) * | 1990-12-20 | 1993-10-05 | Motorola, Inc. | Apparatus and method for equalizing a corrupted signal in a receiver |
US6339612B1 (en) * | 1998-02-09 | 2002-01-15 | Motorola, Inc. | Method and apparatus for joint detection of data in a direct sequence spread spectrum communications system |
DE19907502C2 (de) * | 1999-02-22 | 2001-11-22 | Siemens Ag | Verfahren zur Kanalschätzung |
CN1146156C (zh) * | 2000-06-07 | 2004-04-14 | 华为技术有限公司 | 信道估计中训练序列的生成方法 |
JP4072910B2 (ja) * | 2001-08-21 | 2008-04-09 | インフィネオン テヒノロジース アクチェンゲゼルシャフト | 拡散スペクトル通信システムにおいてデータ速度を増大させる方法及び装置 |
JP3588089B2 (ja) * | 2002-05-22 | 2004-11-10 | 松下電器産業株式会社 | Cdma受信装置、移動局装置及び基地局装置 |
-
2003
- 2003-06-14 KR KR20030038546A patent/KR100575723B1/ko not_active IP Right Cessation
- 2003-12-24 CN CNB2003101244147A patent/CN100490365C/zh not_active Expired - Fee Related
-
2004
- 2004-06-09 EP EP20040013649 patent/EP1487165A1/en not_active Withdrawn
- 2004-06-10 JP JP2004173181A patent/JP3917990B2/ja not_active Expired - Fee Related
- 2004-06-14 US US10/865,975 patent/US20040252793A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
US20040252793A1 (en) | 2004-12-16 |
JP2005006324A (ja) | 2005-01-06 |
KR100575723B1 (ko) | 2006-05-03 |
EP1487165A1 (en) | 2004-12-15 |
KR20040107889A (ko) | 2004-12-23 |
CN100490365C (zh) | 2009-05-20 |
JP3917990B2 (ja) | 2007-05-23 |
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Legal Events
Date | Code | Title | Description |
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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: LANGCHAO LEJIN DIGITAL MOBILE COMMUNICATION CO., L Free format text: FORMER OWNER: LG ELECTRONICS (CHINA) R + D CENTER CO., LTD. Effective date: 20120323 |
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C41 | Transfer of patent application or patent right or utility model | ||
COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100102 CHAOYANG, BEIJING TO: 264001 YANTAI, SHANDONG PROVINCE |
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TR01 | Transfer of patent right |
Effective date of registration: 20120323 Address after: 264001 No. 228 Changjiang Road, Yantai economic and Technological Development Zone, Shandong, China Patentee after: Langchao Lejin Digital Mobile Communication Co., Ltd. Address before: Two Beijing 100102 Chaoyang District city in Wangjing Lize Park No. 203 Petrova building block B Patentee before: LG Electronic (China) Research and Development Center Co., Ltd. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090520 Termination date: 20141224 |
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EXPY | Termination of patent right or utility model |