CN1276593C - 利用功率控制位在CDMA系统中估算Eb/Nt - Google Patents
利用功率控制位在CDMA系统中估算Eb/Nt Download PDFInfo
- Publication number
- CN1276593C CN1276593C CNB028127765A CN02812776A CN1276593C CN 1276593 C CN1276593 C CN 1276593C CN B028127765 A CNB028127765 A CN B028127765A CN 02812776 A CN02812776 A CN 02812776A CN 1276593 C CN1276593 C CN 1276593C
- Authority
- CN
- China
- Prior art keywords
- signal
- noise
- variance
- estimated value
- power
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
-
- 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
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/345—Interference values
-
- 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
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Quality & Reliability (AREA)
- Electromagnetism (AREA)
- Probability & Statistics with Applications (AREA)
- Mobile Radio Communication Systems (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/891,798 US7228146B2 (en) | 2001-06-26 | 2001-06-26 | Estimating Eb/Nt in a CDMA system using power control bits |
US09/891,798 | 2001-06-26 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1520649A CN1520649A (zh) | 2004-08-11 |
CN1276593C true CN1276593C (zh) | 2006-09-20 |
Family
ID=25398840
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB028127765A Expired - Fee Related CN1276593C (zh) | 2001-06-26 | 2002-06-21 | 利用功率控制位在CDMA系统中估算Eb/Nt |
Country Status (8)
Country | Link |
---|---|
US (1) | US7228146B2 (zh) |
EP (1) | EP1405437B1 (zh) |
JP (1) | JP4717348B2 (zh) |
KR (1) | KR100990572B1 (zh) |
CN (1) | CN1276593C (zh) |
AT (1) | ATE457557T1 (zh) |
DE (1) | DE60235300D1 (zh) |
WO (1) | WO2003001700A1 (zh) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7643841B2 (en) * | 2003-03-17 | 2010-01-05 | Telefonaktiebolaget L M Ericsson (Publ) | Receiver performance control |
GB2404822B (en) * | 2003-08-07 | 2007-07-11 | Ipwireless Inc | Method and arrangement for noise variance and sir estimation |
KR100863791B1 (ko) * | 2005-10-12 | 2008-10-17 | 삼성전자주식회사 | 주파수분할 다중접속 방식의 통신시스템에서 패킷 데이터 제어 채널을 이용하여 채널을 추정하기 위한 송수신 장치 및 방법과 그 시스템 |
US7693231B2 (en) * | 2006-05-15 | 2010-04-06 | Qualcomm Incorporated | System and method of calculating noise variance |
US8326339B2 (en) | 2006-08-04 | 2012-12-04 | Broadcom Corporation | Method and apparatus to compute a noise power estimate in a WCDMA network |
KR101337181B1 (ko) * | 2007-08-30 | 2013-12-05 | 삼성전자주식회사 | 이동 통신 시스템에서 이동 단말의 전력을 제어하는 장치 및 방법 |
JP4875642B2 (ja) | 2008-02-27 | 2012-02-15 | 株式会社日立製作所 | 雑音電力推定装置及び方法 |
US8477888B2 (en) * | 2008-06-24 | 2013-07-02 | Qualcomm Incorporated | Phase-noise resilient generation of a channel quality indicator |
GB0905357D0 (en) * | 2009-03-27 | 2009-05-13 | Icera Inc | Estimation of signal and interference power |
WO2011093760A1 (en) * | 2010-01-26 | 2011-08-04 | Telefonaktiebolaget L M Ericsson (Publ) | Power control loop for a cdma system |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0233679B1 (en) | 1986-01-18 | 1990-11-07 | Hewlett-Packard Limited | Non intrusive channel impairment analyser |
US5870393A (en) | 1995-01-20 | 1999-02-09 | Hitachi, Ltd. | Spread spectrum communication system and transmission power control method therefor |
US5383219A (en) * | 1993-11-22 | 1995-01-17 | Qualcomm Incorporated | Fast forward link power control in a code division multiple access system |
US5603096A (en) * | 1994-07-11 | 1997-02-11 | Qualcomm Incorporated | Reverse link, closed loop power control in a code division multiple access system |
US5634195A (en) * | 1995-03-27 | 1997-05-27 | Telefonaktiebolaget Lm Ericsson | System and method for setting of output power parameters in a cellular mobile telecommunication system |
US5987326A (en) * | 1997-02-11 | 1999-11-16 | Qualcomm Incorporated | Transmit power reduction for a high speed CDMA link in soft handoff |
US5963870A (en) * | 1997-03-26 | 1999-10-05 | Nortel Networks Corporation | Process for switching between IS-95 forward power control and fast forward power control |
US6073025A (en) * | 1997-03-26 | 2000-06-06 | Nortel Networks Corporation | Base station power control during a soft hand-off |
US6304562B1 (en) * | 1997-06-26 | 2001-10-16 | Samsung Electronics Co., Ltd. | Asymmetric forward power control in a CDMA communication |
KR100243425B1 (ko) * | 1997-07-10 | 2000-02-01 | 곽치영 | 씨디엠에이 무선가입자망 시스템의 순방향 트래픽 채널 전력제어 방법 및 장치 |
US6075815A (en) * | 1997-09-17 | 2000-06-13 | Nortel Networks Corporation | Symbol-energy-to-noise-density estimation in a QPSK modulated communication system |
US5946346A (en) * | 1997-10-07 | 1999-08-31 | Motorola, Inc. | Method and system for generating a power control command in a wireless communication system |
US6154659A (en) * | 1997-12-24 | 2000-11-28 | Nortel Networks Limited | Fast forward link power control in a code division multiple access system |
EP1758266A3 (en) * | 1998-03-03 | 2014-04-23 | NEC Corporation | Method of controlling transmission power in a cellular type mobile communication system |
KR100339034B1 (ko) | 1998-08-25 | 2002-10-11 | 삼성전자 주식회사 | 부호분할다중접속통신시스템의제어유지상태에서역방향폐루프전력제어장치및방법 |
KR100401191B1 (ko) * | 1999-02-13 | 2003-10-10 | 삼성전자주식회사 | 이동통신시스템의 역방향 링크 송신제어장치 및 방법 |
US6571104B1 (en) * | 1999-09-07 | 2003-05-27 | Lucent Technologies Inc. | Power control with effective Eb/N0 |
-
2001
- 2001-06-26 US US09/891,798 patent/US7228146B2/en not_active Expired - Lifetime
-
2002
- 2002-06-21 EP EP02740995A patent/EP1405437B1/en not_active Expired - Lifetime
- 2002-06-21 KR KR1020037002737A patent/KR100990572B1/ko active IP Right Grant
- 2002-06-21 AT AT02740995T patent/ATE457557T1/de not_active IP Right Cessation
- 2002-06-21 WO PCT/IB2002/002460 patent/WO2003001700A1/en active Application Filing
- 2002-06-21 DE DE60235300T patent/DE60235300D1/de not_active Expired - Lifetime
- 2002-06-21 CN CNB028127765A patent/CN1276593C/zh not_active Expired - Fee Related
- 2002-06-21 JP JP2003507978A patent/JP4717348B2/ja not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO2003001700A1 (en) | 2003-01-03 |
DE60235300D1 (de) | 2010-03-25 |
KR20030025300A (ko) | 2003-03-28 |
ATE457557T1 (de) | 2010-02-15 |
US20030003939A1 (en) | 2003-01-02 |
US7228146B2 (en) | 2007-06-05 |
KR100990572B1 (ko) | 2010-10-29 |
CN1520649A (zh) | 2004-08-11 |
EP1405437B1 (en) | 2010-02-10 |
JP2004533783A (ja) | 2004-11-04 |
JP4717348B2 (ja) | 2011-07-06 |
EP1405437A1 (en) | 2004-04-07 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
ASS | Succession or assignment of patent right |
Owner name: NXP CO., LTD. Free format text: FORMER OWNER: ROYAL PHILIPS ELECTRONICS CO., LTD. Effective date: 20071012 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20071012 Address after: Holland Ian Deho Finn Patentee after: Koninkl Philips Electronics NV Address before: Holland Ian Deho Finn Patentee before: Koninklike Philips Electronics N. V. |
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ASS | Succession or assignment of patent right |
Owner name: DESAILA ADVANCED TECHNOLOGY COMPANY Free format text: FORMER OWNER: KONINKL PHILIPS ELECTRONICS NV Effective date: 20150429 |
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C41 | Transfer of patent application or patent right or utility model | ||
TR01 | Transfer of patent right |
Effective date of registration: 20150429 Address after: American California Patentee after: Desella Advanced Technology Company Address before: Holland Ian Deho Finn Patentee before: Koninkl Philips Electronics NV |
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CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060920 Termination date: 20200621 |
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CF01 | Termination of patent right due to non-payment of annual fee |