CN1437344A - 暂定标准2000系统中基站无线收发台的同步解调设备 - Google Patents
暂定标准2000系统中基站无线收发台的同步解调设备 Download PDFInfo
- Publication number
- CN1437344A CN1437344A CN02154242A CN02154242A CN1437344A CN 1437344 A CN1437344 A CN 1437344A CN 02154242 A CN02154242 A CN 02154242A CN 02154242 A CN02154242 A CN 02154242A CN 1437344 A CN1437344 A CN 1437344A
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- China
- Prior art keywords
- signal
- demodulation
- interference
- individual
- channel
- 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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Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 35
- 230000008929 regeneration Effects 0.000 claims abstract description 14
- 238000011069 regeneration method Methods 0.000 claims abstract description 14
- 230000003111 delayed effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
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
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
- H04B1/71075—Parallel interference cancellation
-
- 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
- H04L25/0204—Channel estimation of multiple channels
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Mobile Radio Communication Systems (AREA)
- Noise Elimination (AREA)
Abstract
Description
Claims (4)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR7474/02 | 2002-02-08 | ||
KR1020020007474A KR20030067341A (ko) | 2002-02-08 | 2002-02-08 | Is-2000 시스템에서의 기지국내 동기식 복조장치 |
KR7474/2002 | 2002-02-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1437344A true CN1437344A (zh) | 2003-08-20 |
CN1252956C CN1252956C (zh) | 2006-04-19 |
Family
ID=36717190
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB021542422A Expired - Lifetime CN1252956C (zh) | 2002-02-08 | 2002-12-31 | 暂定标准2000系统中基站无线收发台的同步解调设备 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7167716B2 (zh) |
EP (1) | EP1335500A1 (zh) |
JP (1) | JP2004007390A (zh) |
KR (1) | KR20030067341A (zh) |
CN (1) | CN1252956C (zh) |
HK (1) | HK1056450A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101366220B (zh) * | 2006-01-31 | 2011-09-21 | 松下电器产业株式会社 | 无线接收装置和无线接收方法 |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7773950B2 (en) * | 2004-06-16 | 2010-08-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Benign interference suppression for received signal quality estimation |
EP1820120B1 (en) | 2004-10-29 | 2012-07-25 | Skyhook Wireless, Inc. | Location beacon database and server, method of building location beacon database, and location based service using same |
US8369264B2 (en) | 2005-10-28 | 2013-02-05 | Skyhook Wireless, Inc. | Method and system for selecting and providing a relevant subset of Wi-Fi location information to a mobile client device so the client device may estimate its position with efficient utilization of resources |
EP2254264A3 (en) * | 2005-01-05 | 2013-11-13 | ATC Technologies, LLC | Adaptive beam forming with multi-user detection and interference reduction in satellite communication systems and methods |
US7474897B2 (en) | 2005-02-22 | 2009-01-06 | Skyhook Wireless, Inc. | Continuous data optimization by filtering and positioning systems |
AU2006318453A1 (en) * | 2005-11-23 | 2007-05-31 | Skyhook Wireless, Inc. | Location toolbar for internet search and communication |
US7471954B2 (en) * | 2006-02-24 | 2008-12-30 | Skyhook Wireless, Inc. | Methods and systems for estimating a user position in a WLAN positioning system based on user assigned access point locations |
US8092465B2 (en) * | 2006-06-09 | 2012-01-10 | Biomet Manufacturing Corp. | Patient specific knee alignment guide and associated method |
US7551929B2 (en) * | 2006-05-08 | 2009-06-23 | Skyhook Wireless, Inc. | Estimation of speed and direction of travel in a WLAN positioning system using multiple position estimations |
US8014788B2 (en) * | 2006-05-08 | 2011-09-06 | Skyhook Wireless, Inc. | Estimation of speed of travel using the dynamic signal strength variation of multiple WLAN access points |
US7551579B2 (en) | 2006-05-08 | 2009-06-23 | Skyhook Wireless, Inc. | Calculation of quality of wlan access point characterization for use in a wlan positioning system |
US7835754B2 (en) * | 2006-05-08 | 2010-11-16 | Skyhook Wireless, Inc. | Estimation of speed and direction of travel in a WLAN positioning system |
US7768963B2 (en) | 2006-07-07 | 2010-08-03 | Skyhook Wireless, Inc. | System and method of improving sampling of WLAN packet information to improve estimates of Doppler frequency of a WLAN positioning device |
KR20090035612A (ko) * | 2006-08-04 | 2009-04-09 | 스카이후크 와이어리스, 인크. | 서버 시스템과 함께 사용되기 위한 사용자 장치로부터 위치정보를 자동 검색하기 위한 시스템 및 방법 |
US7856234B2 (en) * | 2006-11-07 | 2010-12-21 | Skyhook Wireless, Inc. | System and method for estimating positioning error within a WLAN-based positioning system |
US20080248808A1 (en) * | 2007-04-05 | 2008-10-09 | Farshid Alizadeh-Shabdiz | Estimation of position, speed and bearing using time difference of arrival and received signal strength in a wlan positioning system |
KR101603810B1 (ko) * | 2008-06-06 | 2016-03-16 | 스카이후크 와이어리스, 인크. | 최상의 wlan-ps 솔루션을 선택함으로써 하이브리드 위성 및 wlan 위치결정 시스템을 이용하여 위치를 결정하기 위한 방법 및 시스템 |
US8406785B2 (en) * | 2009-08-18 | 2013-03-26 | Skyhook Wireless, Inc. | Method and system for estimating range of mobile device to wireless installation |
GB0916911D0 (en) | 2009-09-25 | 2009-11-11 | Icera Inc | Cancelling interference in a wireless cellular network |
US8619643B2 (en) | 2010-03-24 | 2013-12-31 | Skyhook Wireless, Inc. | System and method for estimating the probability of movement of access points in a WLAN-based positioning system |
KR101868819B1 (ko) | 2010-06-11 | 2018-06-19 | 스카이후크 와이어리스, 인크. | 무선 액세스 포인트의 비콘 안정도를 측정하기 위한 방법 및 시스템 |
US8606294B2 (en) | 2010-10-05 | 2013-12-10 | Skyhook Wireless, Inc. | Method of and system for estimating temporal demographics of mobile users |
KR101972606B1 (ko) | 2010-11-03 | 2019-04-25 | 스카이후크 와이어리스, 인크. | 복합 위치 결정 시스템에서 위치 추정의 신뢰성 및 정확성을 증가시키는 시스템의 방법 |
US20120331561A1 (en) | 2011-06-22 | 2012-12-27 | Broadstone Andrew J | Method of and Systems for Privacy Preserving Mobile Demographic Measurement of Individuals, Groups and Locations Over Time and Space |
US8634502B2 (en) * | 2011-09-30 | 2014-01-21 | Silicon Laboratories Inc. | Receiver with asynchronous and synchronous demodulator |
WO2015165103A1 (zh) * | 2014-04-30 | 2015-11-05 | 华为技术有限公司 | 用于干扰消除的方法和终端 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3158821B2 (ja) * | 1993-12-14 | 2001-04-23 | 株式会社日立製作所 | Cdma移動通信システムおよび装置 |
ZA965340B (en) * | 1995-06-30 | 1997-01-27 | Interdigital Tech Corp | Code division multiple access (cdma) communication system |
JP3476987B2 (ja) | 1996-01-12 | 2003-12-10 | 株式会社日立国際電気 | マルチユーザ復調方法および装置 |
JP2798128B2 (ja) | 1996-08-06 | 1998-09-17 | 日本電気株式会社 | Cdmaマルチユーザ受信装置 |
US6816463B2 (en) * | 1998-03-31 | 2004-11-09 | Motorola, Inc | Method for measuring channel characteristics with the internet control message protocol |
JP2967571B1 (ja) | 1998-05-01 | 1999-10-25 | 日本電気株式会社 | Cdmaマルチユーザ受信装置と通信システム |
KR20010047052A (ko) * | 1999-11-17 | 2001-06-15 | 박종섭 | Is-95 시스템에서의 기지국내 동기식 복조장치 |
KR100363741B1 (ko) * | 2000-04-20 | 2002-12-11 | 주식회사 하이닉스반도체 | 아이엠티-2000 기지국의 변조기 |
US6792034B1 (en) * | 2000-10-06 | 2004-09-14 | Mitsubishi Electric Research Laboratories, Inc. | Adaptive multi-users interference reduction and cancellation in a CDMA network |
US7251224B2 (en) * | 2000-10-10 | 2007-07-31 | Intel Corporation | Communications meshes |
KR100364208B1 (ko) * | 2000-12-15 | 2002-12-12 | 주식회사 하이닉스반도체 | Imt-2000 시스템에서의 기지국 신호 처리 장치 |
KR20030006782A (ko) * | 2001-07-16 | 2003-01-23 | 정하재 | 코드분할다중접속방식의 복조범위 확장방법과 장치 |
KR20030045928A (ko) * | 2001-12-03 | 2003-06-12 | 주식회사 현대시스콤 | Imt-2000 비동기식 기지국 모뎀의 aich 변조 장치 |
-
2002
- 2002-02-08 KR KR1020020007474A patent/KR20030067341A/ko not_active Application Discontinuation
- 2002-12-27 US US10/330,737 patent/US7167716B2/en not_active Expired - Lifetime
- 2002-12-27 JP JP2002382135A patent/JP2004007390A/ja active Pending
- 2002-12-31 EP EP20020259036 patent/EP1335500A1/en not_active Withdrawn
- 2002-12-31 CN CNB021542422A patent/CN1252956C/zh not_active Expired - Lifetime
-
2003
- 2003-11-25 HK HK03108579A patent/HK1056450A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101366220B (zh) * | 2006-01-31 | 2011-09-21 | 松下电器产业株式会社 | 无线接收装置和无线接收方法 |
Also Published As
Publication number | Publication date |
---|---|
JP2004007390A (ja) | 2004-01-08 |
EP1335500A1 (en) | 2003-08-13 |
CN1252956C (zh) | 2006-04-19 |
US7167716B2 (en) | 2007-01-23 |
KR20030067341A (ko) | 2003-08-14 |
HK1056450A1 (en) | 2004-02-13 |
US20030152172A1 (en) | 2003-08-14 |
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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 | ||
C41 | Transfer of patent application or patent right or utility model | ||
C56 | Change in the name or address of the patentee | ||
CP01 | Change in the name or title of a patent holder |
Address after: Seoul, South Kerean Patentee after: Pantech property management Co. Address before: Seoul, South Kerean Patentee before: PANTECH Co.,Ltd. |
|
CP03 | Change of name, title or address |
Address after: Seoul, South Kerean Patentee after: Pantech Co.,Ltd. Address before: Gyeonggi Do, South Korea Patentee before: Curitel Communications, Inc. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20161116 Address after: Seoul, South Kerean Patentee after: PANTECH CO.,LTD. Address before: Seoul, South Kerean Patentee before: Pantech property management Co. Effective date of registration: 20161116 Address after: Seoul, South Kerean Patentee after: PANTECH Co.,Ltd. Address before: Seoul, South Kerean Patentee before: Pantech Co.,Ltd. |
|
TR01 | Transfer of patent right |
Effective date of registration: 20170629 Address after: Seoul, South Kerean Patentee after: GOLDPEAK INNOVATIONS Inc. Address before: Seoul, South Kerean Patentee before: PANTECH CO.,LTD. |
|
TR01 | Transfer of patent right | ||
TR01 | Transfer of patent right |
Effective date of registration: 20200615 Address after: Seoul, South Kerean Patentee after: Pan Thai Co.,Ltd. Address before: Seoul, South Kerean Patentee before: GOLDPEAK INNOVATIONS Inc. |
|
TR01 | Transfer of patent right | ||
CX01 | Expiry of patent term | ||
CX01 | Expiry of patent term |
Granted publication date: 20060419 |