CN1263322C - Td-scdma移动通信系统小区初始搜索中的增益控制方法 - Google Patents
Td-scdma移动通信系统小区初始搜索中的增益控制方法 Download PDFInfo
- Publication number
- CN1263322C CN1263322C CNB03149787XA CN03149787A CN1263322C CN 1263322 C CN1263322 C CN 1263322C CN B03149787X A CNB03149787X A CN B03149787XA CN 03149787 A CN03149787 A CN 03149787A CN 1263322 C CN1263322 C CN 1263322C
- Authority
- CN
- China
- Prior art keywords
- carrier frequency
- mobile communication
- communication system
- receiver
- gain control
- 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 - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000010295 mobile communication Methods 0.000 title claims abstract description 18
- 229920006395 saturated elastomer Polymers 0.000 claims abstract description 10
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000005562 fading Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
-
- 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
- H04B1/7083—Cell search, e.g. using a three-step approach
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
Claims (5)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB03149787XA CN1263322C (zh) | 2003-08-06 | 2003-08-06 | Td-scdma移动通信系统小区初始搜索中的增益控制方法 |
EP04762016.6A EP1653751B1 (en) | 2003-08-06 | 2004-07-28 | A gain control method of when cell perform initial searching in a td-scdma mobile communication system |
JP2006522196A JP4263745B2 (ja) | 2003-08-06 | 2004-07-28 | Td−scdma移動通信システムのエリア初期検索における利得制御方法 |
KR20067002406A KR100712035B1 (ko) | 2003-08-06 | 2004-07-28 | 시분할 동기 코드 분할 다중 접속 이동 통신 시스템에서의초기 셀 탐색을 위한 이득 제어 방법 |
PCT/CN2004/000878 WO2005015920A1 (fr) | 2003-08-06 | 2004-07-28 | Procede de controle de la douleur quand une cellule effectue une recherche initiale dans un systeme de communication mobile td-scdma |
US10/565,764 US7542450B2 (en) | 2003-08-06 | 2004-07-28 | Gain control method for the initial cell searching in TD-SCDMA mobile communication system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB03149787XA CN1263322C (zh) | 2003-08-06 | 2003-08-06 | Td-scdma移动通信系统小区初始搜索中的增益控制方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1581999A CN1581999A (zh) | 2005-02-16 |
CN1263322C true CN1263322C (zh) | 2006-07-05 |
Family
ID=34121280
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB03149787XA Expired - Lifetime CN1263322C (zh) | 2003-08-06 | 2003-08-06 | Td-scdma移动通信系统小区初始搜索中的增益控制方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7542450B2 (zh) |
EP (1) | EP1653751B1 (zh) |
JP (1) | JP4263745B2 (zh) |
KR (1) | KR100712035B1 (zh) |
CN (1) | CN1263322C (zh) |
WO (1) | WO2005015920A1 (zh) |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7525926B2 (en) | 2004-08-02 | 2009-04-28 | Atheros Communications, Inc. | Wireless communication using beam forming and diversity |
CN1941669B (zh) | 2005-09-29 | 2012-07-25 | 上海原动力通信科技有限公司 | 一种下行公共导频的插入方法 |
CN1988415B (zh) * | 2005-12-21 | 2010-04-14 | 大唐移动通信设备有限公司 | 在cdma通信系统中判断下行导频信号发送方式的方法 |
CN100413364C (zh) * | 2006-06-26 | 2008-08-20 | 北京天碁科技有限公司 | Td-scdma终端及其在同频网络下的小区搜索方法 |
US7916710B2 (en) * | 2006-11-02 | 2011-03-29 | Nokia Corporation | Method, device, system and software product for alternative time division duplex frame structure optimization |
CN101247164B (zh) * | 2007-02-16 | 2011-04-20 | 大唐移动通信设备有限公司 | 时分同步码分多址演进系统中下行控制信令的传输方法 |
US8144634B2 (en) * | 2007-02-21 | 2012-03-27 | Telefonaktiebolaget Lm Ericsson (Publ) | Reducing automatic gain control process in time division duplex communication mode |
CN101383639B (zh) * | 2007-09-06 | 2012-09-05 | 电信科学技术研究院 | 上行功率控制信息的传输方法、上行功率控制方法和装置 |
CN101222280B (zh) * | 2007-11-30 | 2012-02-29 | 深圳国人通信有限公司 | 单时隙功率检测的方法和装置 |
WO2010004638A1 (ja) * | 2008-07-10 | 2010-01-14 | 富士通株式会社 | 移動端末局、同期制御方法および同期制御プログラム |
US9398502B2 (en) | 2008-07-17 | 2016-07-19 | Zte Corporation | Method for measuring adjacent areas |
CA2915864C (en) * | 2008-07-17 | 2017-08-15 | Zte Microelectronics Technology Co. Ltd | A method for measuring adjacent areas |
US8989061B2 (en) * | 2009-06-16 | 2015-03-24 | Qualcomm Incorporated | Methods and apparatus for initial acquisition in a communication system |
US9059785B2 (en) | 2011-07-07 | 2015-06-16 | Qualcomm Incorporated | Fast timing acquisition in cell search |
US9191953B2 (en) * | 2012-09-21 | 2015-11-17 | Qualcomm Incorporated | Frequency tracking loops in wireless network |
CN104427614B (zh) | 2013-09-04 | 2019-03-22 | 中兴通讯股份有限公司 | 一种位置确定方法及装置 |
KR102421473B1 (ko) | 2015-10-01 | 2022-07-18 | 삼성전자주식회사 | Td-scdma 시스템에서 캐리어 서치를 수행하는 통신 디바이스 및 그 제어 방법 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2544691B2 (ja) * | 1991-12-10 | 1996-10-16 | 新日本製鐵株式会社 | 衛星放送受信アンテナ装置 |
US5917865A (en) * | 1996-12-31 | 1999-06-29 | Lucent Technologies, Inc. | Digital automatic gain control employing two-stage gain-determination process |
CN1131653C (zh) * | 2000-03-27 | 2003-12-17 | 信息产业部电信科学技术研究院 | 一种码分多址数字移动通信系统的小区初始搜索方法 |
CN1145295C (zh) | 2001-04-04 | 2004-04-07 | 华为技术有限公司 | 码分多址通信系统中移动台软切换小区的方法 |
US20050075125A1 (en) * | 2002-01-21 | 2005-04-07 | Bada Anna Marina | Method and mobile station to perform the initial cell search in time slotted systems |
JP4303729B2 (ja) * | 2003-01-23 | 2009-07-29 | インターデイジタル テクノロジー コーポレーション | ワイヤレス通信システムにおける不適切なセルの除外 |
-
2003
- 2003-08-06 CN CNB03149787XA patent/CN1263322C/zh not_active Expired - Lifetime
-
2004
- 2004-07-28 US US10/565,764 patent/US7542450B2/en active Active
- 2004-07-28 EP EP04762016.6A patent/EP1653751B1/en not_active Expired - Lifetime
- 2004-07-28 JP JP2006522196A patent/JP4263745B2/ja not_active Expired - Lifetime
- 2004-07-28 KR KR20067002406A patent/KR100712035B1/ko active IP Right Grant
- 2004-07-28 WO PCT/CN2004/000878 patent/WO2005015920A1/zh active Application Filing
Also Published As
Publication number | Publication date |
---|---|
EP1653751B1 (en) | 2016-03-23 |
EP1653751A4 (en) | 2011-12-14 |
US7542450B2 (en) | 2009-06-02 |
KR20060039933A (ko) | 2006-05-09 |
CN1581999A (zh) | 2005-02-16 |
WO2005015920A8 (fr) | 2005-04-21 |
KR100712035B1 (ko) | 2007-04-27 |
WO2005015920A1 (fr) | 2005-02-17 |
JP2007501547A (ja) | 2007-01-25 |
US20070189229A1 (en) | 2007-08-16 |
EP1653751A1 (en) | 2006-05-03 |
JP4263745B2 (ja) | 2009-05-13 |
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Effective date of registration: 20070510 Pledge (preservation): Pledge |
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PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20100413 Granted publication date: 20060705 Pledgee: CHINA DEVELOPMENT BANK Pledgor: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.|SHANGHAI DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd.|CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Registration number: 2007110000354 |
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Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110707 |
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Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100191 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
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Effective date of registration: 20110707 Address after: 100191 Haidian District, Xueyuan Road, No. 40, Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
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CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210610 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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