CN1118978C - Cdma通信设备及发射功率控制方法 - Google Patents
Cdma通信设备及发射功率控制方法 Download PDFInfo
- Publication number
- CN1118978C CN1118978C CN00109560A CN00109560A CN1118978C CN 1118978 C CN1118978 C CN 1118978C CN 00109560 A CN00109560 A CN 00109560A CN 00109560 A CN00109560 A CN 00109560A CN 1118978 C CN1118978 C CN 1118978C
- Authority
- CN
- China
- Prior art keywords
- mentioned
- demodulating data
- rssi
- weighting
- signal
- 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
- 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
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
-
- 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
-
- 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
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
- H04B7/0842—Weighted combining
- H04B7/0865—Independent weighting, i.e. weights based on own antenna reception parameters
-
- 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
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/143—Downlink power control
-
- 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
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
-
- 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
- H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
-
- 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
- H04B1/712—Weighting of fingers for combining, e.g. amplitude control or phase rotation using an inner loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18923899A JP2001024555A (ja) | 1999-07-02 | 1999-07-02 | Cdma通信装置および送信電力制御方法 |
JP189238/1999 | 1999-07-02 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1279546A CN1279546A (zh) | 2001-01-10 |
CN1118978C true CN1118978C (zh) | 2003-08-20 |
Family
ID=16237932
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN00109560A Expired - Fee Related CN1118978C (zh) | 1999-07-02 | 2000-07-03 | Cdma通信设备及发射功率控制方法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6724808B1 (zh) |
EP (1) | EP1065802B1 (zh) |
JP (1) | JP2001024555A (zh) |
CN (1) | CN1118978C (zh) |
AU (1) | AU771784B2 (zh) |
DE (1) | DE60022270T2 (zh) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3308962B2 (ja) * | 2000-03-28 | 2002-07-29 | 松下電器産業株式会社 | 無線受信装置および無線受信方法 |
US7313398B1 (en) * | 2002-08-06 | 2007-12-25 | Sprint Spectrum L.P. | System and method for handoff in a CDMA network |
US7154938B2 (en) * | 2002-12-31 | 2006-12-26 | Itron, Inc. | RF communications system utilizing digital modulation to transmit and receive data |
CN1625066A (zh) * | 2003-12-05 | 2005-06-08 | 皇家飞利浦电子股份有限公司 | 一种用于无线通信体系的二维瑞克接收机 |
US20050281361A1 (en) * | 2004-06-16 | 2005-12-22 | Broadcom Corporation | Interference cancellation of STBC with multiple streams in OFDM for wlan |
US9225386B2 (en) * | 2007-11-20 | 2015-12-29 | Sony Corporation | Method for placement of fingers with G-Rake advanced receiver |
DE112012006980B4 (de) * | 2012-10-05 | 2017-07-06 | Mitsubishi Electric Corporation | Bord-Drahtlos-Kommunikationsvorrichtung und Drahtlosgerät |
US10707917B2 (en) * | 2017-11-08 | 2020-07-07 | Viavi Solutions, Inc. | Instrument, system, and method for locating a leakage source |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5812542A (en) * | 1996-03-18 | 1998-09-22 | Motorola, Inc. | Method for determining weighting coefficients in a CDMA radio receiver |
JPH08265217A (ja) | 1995-03-20 | 1996-10-11 | Nippon Telegr & Teleph Corp <Ntt> | スペクトラム拡散通信用無線局装置 |
JPH0918400A (ja) | 1995-06-30 | 1997-01-17 | Sanyo Electric Co Ltd | ダイバーシチ装置 |
JP2924730B2 (ja) | 1995-09-13 | 1999-07-26 | 日本電気株式会社 | 信号受信方法 |
JP3212019B2 (ja) | 1996-05-20 | 2001-09-25 | 株式会社エヌ・ティ・ティ・ドコモ | Cdma移動通信システムにおける送信電力制御方法およびcdma移動通信システム |
JP3001040B2 (ja) | 1996-09-20 | 2000-01-17 | 日本電気株式会社 | Cdmaセルラーシステム用閉ループ送信機電力制御ユニット |
JPH10190526A (ja) | 1996-12-26 | 1998-07-21 | Sony Corp | 受信装置及び受信方法、並びに無線システムの端末装置 |
JPH10256969A (ja) | 1997-03-11 | 1998-09-25 | Matsushita Electric Ind Co Ltd | 無線基地局装置 |
JP2853705B2 (ja) | 1997-05-07 | 1999-02-03 | 日本電気株式会社 | スペクトラム拡散通信受信機 |
JP2954086B2 (ja) | 1997-05-16 | 1999-09-27 | 埼玉日本電気株式会社 | 移動通信システム |
EP1020042A1 (en) | 1997-09-29 | 2000-07-19 | QUALCOMM Incorporated | Using multiple antennas to mitigate specular reflection |
US6067315A (en) * | 1997-12-04 | 2000-05-23 | Telefonaktiebolaget Lm Ericsson | Method and apparatus for coherently-averaged power estimation |
JP3305639B2 (ja) * | 1997-12-24 | 2002-07-24 | 株式会社エヌ・ティ・ティ・ドコモ | 直接拡散cdma伝送方式におけるrake受信機 |
US6125109A (en) * | 1998-02-24 | 2000-09-26 | Repeater Technologies | Delay combiner system for CDMA repeaters and low noise amplifiers |
JPH11266180A (ja) * | 1998-03-18 | 1999-09-28 | Fujitsu Ltd | 無線基地局のアレーアンテナシステム |
US6456849B1 (en) * | 1998-07-31 | 2002-09-24 | Nokia Corporation | Apparatus and associated method, for allocating resources in a radio communication system to perform a communication service |
US6370183B1 (en) * | 1998-10-26 | 2002-04-09 | Nortel Networks Limited | Predictive rake receiver for CDMA mobile radio systems |
US6470044B1 (en) * | 1999-01-15 | 2002-10-22 | Sharp Laboratories Of America, Inc. | Computationally parsimonious forward link receiver for DS-CDMA systems and method for same |
-
1999
- 1999-07-02 JP JP18923899A patent/JP2001024555A/ja active Pending
-
2000
- 2000-06-28 AU AU42738/00A patent/AU771784B2/en not_active Ceased
- 2000-06-29 DE DE2000622270 patent/DE60022270T2/de not_active Expired - Lifetime
- 2000-06-29 EP EP00113809A patent/EP1065802B1/en not_active Expired - Lifetime
- 2000-06-29 US US09/607,145 patent/US6724808B1/en not_active Expired - Lifetime
- 2000-07-03 CN CN00109560A patent/CN1118978C/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
CN1279546A (zh) | 2001-01-10 |
AU4273800A (en) | 2001-01-04 |
US6724808B1 (en) | 2004-04-20 |
JP2001024555A (ja) | 2001-01-26 |
EP1065802A1 (en) | 2001-01-03 |
DE60022270T2 (de) | 2006-06-29 |
AU771784B2 (en) | 2004-04-01 |
DE60022270D1 (de) | 2005-10-06 |
EP1065802B1 (en) | 2005-08-31 |
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Legal Events
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: LENOVO INNOVATION CO., LTD. (HONGKONG) Free format text: FORMER OWNER: NEC CORP. Effective date: 20141209 |
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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; TO: HONG KONG, CHINA |
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TR01 | Transfer of patent right |
Effective date of registration: 20141209 Address after: Hongkong, China Patentee after: LENOVO INNOVATIONS Co.,Ltd.(HONG KONG) Address before: Tokyo, Japan Patentee before: NEC Corp. |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20030820 Termination date: 20180703 |
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CF01 | Termination of patent right due to non-payment of annual fee |