CN101233698B - 在闭环发送分集通信系统中测量信道质量的方法 - Google Patents
在闭环发送分集通信系统中测量信道质量的方法 Download PDFInfo
- Publication number
- CN101233698B CN101233698B CN2006800276049A CN200680027604A CN101233698B CN 101233698 B CN101233698 B CN 101233698B CN 2006800276049 A CN2006800276049 A CN 2006800276049A CN 200680027604 A CN200680027604 A CN 200680027604A CN 101233698 B CN101233698 B CN 101233698B
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- Prior art keywords
- alpha
- cpich
- overbar
- rake
- antenna
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
- H04B7/0613—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission
- H04B7/0615—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal
- H04B7/0619—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using simultaneous transmission of weighted versions of same signal using feedback from receiving side
- H04B7/0621—Feedback content
- H04B7/0634—Antenna weights or vector/matrix coefficients
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/336—Signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]
-
- 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
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/32—TPC of broadcast or control channels
- H04W52/325—Power control of control or pilot channels
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
- H04B17/327—Received signal code power [RSCP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0006—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission format
-
- 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
- H04W52/18—TPC being performed according to specific parameters
- H04W52/22—TPC being performed according to specific parameters taking into account previous information or commands
- H04W52/225—Calculation of statistics, e.g. average, variance
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- Mathematical Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (7)
Applications Claiming Priority (9)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005903977 | 2005-07-26 | ||
AU2005903977A AU2005903977A0 (en) | 2005-07-26 | Method of measuring channel quality in a closed loop transmit diversity communication system | |
AU2005903976A AU2005903976A0 (en) | 2005-07-26 | Method of determining channel quality information in a high speed packet access communication system with closed loop transmit diversity | |
AU2005903976 | 2005-07-26 | ||
AU2006202385 | 2006-06-05 | ||
AU2006202384A AU2006202384A1 (en) | 2005-07-26 | 2006-06-05 | Method of determining channel quality information in a high speed packet access communication system with closed loop transmit diversity |
AU2006202385A AU2006202385A1 (en) | 2005-07-26 | 2006-06-05 | Method for measuring channel quality in a closed loop transmit diversity communication system |
AU2006202384 | 2006-06-05 | ||
PCT/JP2006/315340 WO2007013669A1 (en) | 2005-07-26 | 2006-07-26 | Method of measuring channel quality in closed loop transmit diversity communication system |
Publications (2)
Publication Number | Publication Date |
---|---|
CN101233698A CN101233698A (zh) | 2008-07-30 |
CN101233698B true CN101233698B (zh) | 2012-10-03 |
Family
ID=37683546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2006800276049A Expired - Fee Related CN101233698B (zh) | 2005-07-26 | 2006-07-26 | 在闭环发送分集通信系统中测量信道质量的方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8054905B2 (zh) |
EP (1) | EP1911168A4 (zh) |
JP (1) | JP4873190B2 (zh) |
CN (1) | CN101233698B (zh) |
WO (1) | WO2007013669A1 (zh) |
Families Citing this family (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7693037B2 (en) * | 2005-06-21 | 2010-04-06 | Qualcomm Incorporated | Method and system for adapting an effective spreading sequence in a communication system using direct sequence spreading |
WO2008020294A2 (en) * | 2006-08-14 | 2008-02-21 | Nokia Corporation | Reduced performance mode when receiving a common control channel |
US8792922B2 (en) * | 2007-02-28 | 2014-07-29 | Qualcomm Incorporated | Uplink scheduling for fairness in channel estimation performance |
US7738535B2 (en) * | 2007-05-22 | 2010-06-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and apparatus for removing pilot channel amplitude dependencies from RAKE receiver output |
JP4998169B2 (ja) * | 2007-09-20 | 2012-08-15 | 富士通株式会社 | 無線通信装置および伝搬環境指標分散抑制方法 |
US9287957B2 (en) * | 2009-04-30 | 2016-03-15 | Google Technology Holdings LLC | Method for multi-antenna uplink transmission |
US9059760B2 (en) * | 2010-02-05 | 2015-06-16 | Qualcomm Incorporated | Apparatus and method for enabling uplink beamforming transit diversity |
JP5144709B2 (ja) * | 2010-04-21 | 2013-02-13 | 株式会社日立国際電気 | 移動局装置 |
US8737247B1 (en) | 2010-10-08 | 2014-05-27 | Marvell International Ltd. | Data channel noise estimation using pilot channel |
US8982866B1 (en) * | 2010-10-08 | 2015-03-17 | Marvell International Ltd. | Data channel noise estimation using control channel |
TWI422181B (zh) * | 2010-12-07 | 2014-01-01 | Ralink Technology Corp | 天線選擇方法與裝置 |
CN103227670B (zh) | 2012-01-30 | 2018-08-24 | 中兴通讯股份有限公司 | 上行闭环发送分集激活方法及装置 |
US9831910B2 (en) | 2013-09-16 | 2017-11-28 | Marvell International Ltd. | Noise estimation based on control messages destined for other mobile terminals |
US10230409B2 (en) | 2016-05-24 | 2019-03-12 | Hughes Network Systems, Llc | Apparatus and method for reduced computation amplifier gain control |
WO2018109603A1 (en) * | 2016-12-13 | 2018-06-21 | Amimon Ltd. | Analog signal transmission with multiple antennas |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004040778A (ja) * | 2002-05-11 | 2004-02-05 | Samsung Electronics Co Ltd | 非同期符号分割多重接続移動通信システムで高速順方向物理共有チャネルの電力オフセット決定方法およびそのシグナリング方法 |
JP2005086492A (ja) * | 2003-09-09 | 2005-03-31 | Nec Corp | Sir測定方法 |
CN1618220A (zh) * | 2001-11-28 | 2005-05-18 | 艾利森电话股份有限公司 | 估计通信信道之间相位偏移的方法及装置 |
JP2005175810A (ja) * | 2003-12-10 | 2005-06-30 | Matsushita Electric Ind Co Ltd | 希望信号対干渉信号電力比測定装置、無線通信装置及び基地局装置 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100353338B1 (ko) * | 1999-03-17 | 2002-09-18 | 소니 가부시끼 가이샤 | 확산 스펙트럼 통신 장치 |
CN1108028C (zh) * | 1999-03-30 | 2003-05-07 | 诺基亚网络有限公司 | 在移动通信系统中估计信号对干扰比 |
US7499709B2 (en) * | 2002-02-07 | 2009-03-03 | Alcatel-Lucent Usa Inc. | Method and apparatus for closed loop transmit diversity in a wireless communications system |
DE10251479A1 (de) * | 2002-11-05 | 2004-05-19 | Siemens Ag | Verfahren zur Schätzung einer Kanalqualität |
US7599702B2 (en) * | 2003-12-23 | 2009-10-06 | Telefonaktiebolaget Lm Ericsson (Publ) | SIR estimates for non-scheduled mobile terminals |
US20060089104A1 (en) * | 2004-10-27 | 2006-04-27 | Nokia Corporation | Method for improving an HS-DSCH transport format allocation |
-
2006
- 2006-07-26 WO PCT/JP2006/315340 patent/WO2007013669A1/en active Application Filing
- 2006-07-26 CN CN2006800276049A patent/CN101233698B/zh not_active Expired - Fee Related
- 2006-07-26 EP EP06782209.8A patent/EP1911168A4/en not_active Withdrawn
- 2006-07-26 US US11/989,432 patent/US8054905B2/en not_active Expired - Fee Related
- 2006-07-26 JP JP2008503308A patent/JP4873190B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1618220A (zh) * | 2001-11-28 | 2005-05-18 | 艾利森电话股份有限公司 | 估计通信信道之间相位偏移的方法及装置 |
JP2004040778A (ja) * | 2002-05-11 | 2004-02-05 | Samsung Electronics Co Ltd | 非同期符号分割多重接続移動通信システムで高速順方向物理共有チャネルの電力オフセット決定方法およびそのシグナリング方法 |
JP2005086492A (ja) * | 2003-09-09 | 2005-03-31 | Nec Corp | Sir測定方法 |
JP2005175810A (ja) * | 2003-12-10 | 2005-06-30 | Matsushita Electric Ind Co Ltd | 希望信号対干渉信号電力比測定装置、無線通信装置及び基地局装置 |
Also Published As
Publication number | Publication date |
---|---|
WO2007013669A1 (en) | 2007-02-01 |
EP1911168A4 (en) | 2014-10-22 |
JP2009503913A (ja) | 2009-01-29 |
US8054905B2 (en) | 2011-11-08 |
JP4873190B2 (ja) | 2012-02-08 |
CN101233698A (zh) | 2008-07-30 |
EP1911168A1 (en) | 2008-04-16 |
US20090086647A1 (en) | 2009-04-02 |
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Owner name: LENOVO INNOVATION CO., LTD. (HONGKONG) Free format text: FORMER OWNER: NEC CORP. Effective date: 20141128 |
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