CN1123989C - 对接收到的信号的信号强度提供估计的方法和系统 - Google Patents
对接收到的信号的信号强度提供估计的方法和系统 Download PDFInfo
- Publication number
- CN1123989C CN1123989C CN99804371A CN99804371A CN1123989C CN 1123989 C CN1123989 C CN 1123989C CN 99804371 A CN99804371 A CN 99804371A CN 99804371 A CN99804371 A CN 99804371A CN 1123989 C CN1123989 C CN 1123989C
- Authority
- CN
- China
- Prior art keywords
- signal
- energy
- signal strength
- records
- estimation
- 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
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Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/04—Transmission power control [TPC]
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/048,454 US6201954B1 (en) | 1998-03-25 | 1998-03-25 | Method and system for providing an estimate of the signal strength of a received signal |
| US09/048,454 | 1998-03-25 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1294791A CN1294791A (zh) | 2001-05-09 |
| CN1123989C true CN1123989C (zh) | 2003-10-08 |
Family
ID=21954681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN99804371A Expired - Lifetime CN1123989C (zh) | 1998-03-25 | 1999-03-23 | 对接收到的信号的信号强度提供估计的方法和系统 |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6201954B1 (https=) |
| EP (2) | EP1605606B1 (https=) |
| JP (1) | JP2002508617A (https=) |
| KR (1) | KR100650020B1 (https=) |
| CN (1) | CN1123989C (https=) |
| AR (1) | AR014214A1 (https=) |
| AU (1) | AU3361599A (https=) |
| DE (2) | DE69943206D1 (https=) |
| TW (1) | TW437191B (https=) |
| WO (1) | WO1999049588A1 (https=) |
Families Citing this family (51)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6510189B1 (en) * | 1997-09-10 | 2003-01-21 | Matsushita Electric Industrial Co., Ltd. | Channel switching device and channel switching method |
| US9118387B2 (en) | 1997-11-03 | 2015-08-25 | Qualcomm Incorporated | Pilot reference transmission for a wireless communication system |
| US7184426B2 (en) | 2002-12-12 | 2007-02-27 | Qualcomm, Incorporated | Method and apparatus for burst pilot for a time division multiplex system |
| US6509934B1 (en) * | 1998-12-22 | 2003-01-21 | Mitsubishi Electric Research Laboratories, Inc. | Directing an antenna to receive digital television signals |
| DE19920819C1 (de) * | 1999-05-06 | 2000-10-26 | Bosch Gmbh Robert | Verfahren und Vorrichtung zur Schätzung von gedächtnisbehafteten Übertragungskanälen |
| US6377607B1 (en) * | 1999-05-13 | 2002-04-23 | Qualcomm Incorporated | System and method for performing accurate demodulation of turbo-encoded signals via pilot assisted coherent demodulation |
| US6452959B1 (en) * | 1999-05-28 | 2002-09-17 | Dot Wireless, Inc. | Method of and apparatus for generating data sequences for use in communications |
| US20020137513A1 (en) * | 1999-12-13 | 2002-09-26 | Koichi Aihara | Communication terminal apparatus and radio communication method |
| CN101034920A (zh) * | 2000-02-23 | 2007-09-12 | Ipr特许公司 | 反向链路初始功率的设定 |
| US6477162B1 (en) * | 2000-03-31 | 2002-11-05 | Qualcomm, Incorporated | Dynamically adjusting integration interval based on a signal strength |
| US6611794B1 (en) * | 2000-04-20 | 2003-08-26 | Southwest Research Institute | Signal amplitude restoration apparatus and method |
| JP4536319B2 (ja) * | 2000-08-02 | 2010-09-01 | パナソニック株式会社 | 送信装置、受信装置および無線通信システム |
| CN101489250B (zh) * | 2000-08-02 | 2012-04-18 | 松下电器产业株式会社 | 通信终端装置和无线通信方法 |
| US6952561B1 (en) * | 2000-08-31 | 2005-10-04 | Lucent Technologies Inc. | Enhanced metric for bit detection on fading channels with unknown statistics |
| DE10050330A1 (de) * | 2000-10-11 | 2002-04-25 | Infineon Technologies Ag | Signalstärkeausgleich für stark zeitvariante Mobilfunkkanäle |
| US7103537B2 (en) * | 2000-10-13 | 2006-09-05 | Science Applications International Corporation | System and method for linear prediction |
| US7068683B1 (en) * | 2000-10-25 | 2006-06-27 | Qualcomm, Incorporated | Method and apparatus for high rate packet data and low delay data transmissions |
| US6973098B1 (en) | 2000-10-25 | 2005-12-06 | Qualcomm, Incorporated | Method and apparatus for determining a data rate in a high rate packet data wireless communications system |
| US9100457B2 (en) | 2001-03-28 | 2015-08-04 | Qualcomm Incorporated | Method and apparatus for transmission framing in a wireless communication system |
| GB2377128B (en) * | 2001-06-29 | 2004-09-08 | Nokia Corp | Automatic gain control |
| US7352868B2 (en) | 2001-10-09 | 2008-04-01 | Philip Hawkes | Method and apparatus for security in a data processing system |
| US8082286B1 (en) | 2002-04-22 | 2011-12-20 | Science Applications International Corporation | Method and system for soft-weighting a reiterative adaptive signal processor |
| US7190741B1 (en) | 2002-10-21 | 2007-03-13 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Real-time signal-to-noise ratio (SNR) estimation for BPSK and QPSK modulation using the active communications channel |
| US7415065B2 (en) * | 2002-10-25 | 2008-08-19 | Science Applications International Corporation | Adaptive filtering in the presence of multipath |
| US7599655B2 (en) | 2003-01-02 | 2009-10-06 | Qualcomm Incorporated | Method and apparatus for broadcast services in a communication system |
| US6996763B2 (en) * | 2003-01-10 | 2006-02-07 | Qualcomm Incorporated | Operation of a forward link acknowledgement channel for the reverse link data |
| US20040235423A1 (en) * | 2003-01-14 | 2004-11-25 | Interdigital Technology Corporation | Method and apparatus for network management using perceived signal to noise and interference indicator |
| US7738848B2 (en) | 2003-01-14 | 2010-06-15 | Interdigital Technology Corporation | Received signal to noise indicator |
| US8023950B2 (en) | 2003-02-18 | 2011-09-20 | Qualcomm Incorporated | Systems and methods for using selectable frame durations in a wireless communication system |
| US7155236B2 (en) * | 2003-02-18 | 2006-12-26 | Qualcomm Incorporated | Scheduled and autonomous transmission and acknowledgement |
| US7660282B2 (en) * | 2003-02-18 | 2010-02-09 | Qualcomm Incorporated | Congestion control in a wireless data network |
| US8081598B2 (en) * | 2003-02-18 | 2011-12-20 | Qualcomm Incorporated | Outer-loop power control for wireless communication systems |
| US7286846B2 (en) * | 2003-02-18 | 2007-10-23 | Qualcomm, Incorporated | Systems and methods for performing outer loop power control in wireless communication systems |
| US20040160922A1 (en) * | 2003-02-18 | 2004-08-19 | Sanjiv Nanda | Method and apparatus for controlling data rate of a reverse link in a communication system |
| US8150407B2 (en) * | 2003-02-18 | 2012-04-03 | Qualcomm Incorporated | System and method for scheduling transmissions in a wireless communication system |
| US8391249B2 (en) * | 2003-02-18 | 2013-03-05 | Qualcomm Incorporated | Code division multiplexing commands on a code division multiplexed channel |
| US7505780B2 (en) * | 2003-02-18 | 2009-03-17 | Qualcomm Incorporated | Outer-loop power control for wireless communication systems |
| US7215930B2 (en) * | 2003-03-06 | 2007-05-08 | Qualcomm, Incorporated | Method and apparatus for providing uplink signal-to-noise ratio (SNR) estimation in a wireless communication |
| US8705588B2 (en) | 2003-03-06 | 2014-04-22 | Qualcomm Incorporated | Systems and methods for using code space in spread-spectrum communications |
| SG152924A1 (en) | 2003-03-12 | 2009-06-29 | Interdigital Tech Corp | System and method for received channel power indicator (rcpi) measurement |
| US8477592B2 (en) * | 2003-05-14 | 2013-07-02 | Qualcomm Incorporated | Interference and noise estimation in an OFDM system |
| US8489949B2 (en) | 2003-08-05 | 2013-07-16 | Qualcomm Incorporated | Combining grant, acknowledgement, and rate control commands |
| US7242914B2 (en) * | 2004-06-16 | 2007-07-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Method of automatic gain control for multiple receiver front-ends |
| KR100755686B1 (ko) * | 2005-01-04 | 2007-09-05 | 삼성전자주식회사 | 신호 증폭 장치 및 방법 |
| US8149797B2 (en) * | 2006-06-30 | 2012-04-03 | Hewlett-Packard Development Company, L.P. | Visualization of RF neighbor correlation in a single view |
| US7894864B2 (en) * | 2007-09-28 | 2011-02-22 | Texas Instruments Incorporated | Estimation of power level in a communication device |
| TWI379555B (en) * | 2009-01-14 | 2012-12-11 | Realtek Semiconductor Corp | Wireless network connection device and method |
| US8068410B2 (en) * | 2009-02-27 | 2011-11-29 | Ibasis, Inc. | Bias correction for scrubbing providers |
| JPWO2012133691A1 (ja) * | 2011-03-30 | 2014-07-28 | Necカシオモバイルコミュニケーションズ株式会社 | 受信装置および受信方法、ならびにコンピュータプログラム |
| TWI565272B (zh) * | 2015-01-28 | 2017-01-01 | 晨星半導體股份有限公司 | 通訊系統及其相位誤差估計方法 |
| CN114465680B (zh) * | 2022-02-15 | 2024-01-19 | 上海兆煊微电子有限公司 | 一种应用于低功耗蓝牙的高精度rssi估计方法 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2224271A (en) * | 1938-10-26 | 1940-12-10 | Louis S Sanders | Drawing and method of and medium for making the same |
| US4901307A (en) | 1986-10-17 | 1990-02-13 | Qualcomm, Inc. | Spread spectrum multiple access communication system using satellite or terrestrial repeaters |
| US5101501A (en) * | 1989-11-07 | 1992-03-31 | Qualcomm Incorporated | Method and system for providing a soft handoff in communications in a cdma cellular telephone system |
| US5457818A (en) * | 1990-06-08 | 1995-10-10 | Butler; James A. | Detection threshold adjustment method for linear matched filter receivers |
| US5103459B1 (en) * | 1990-06-25 | 1999-07-06 | Qualcomm Inc | System and method for generating signal waveforms in a cdma cellular telephone system |
| US5267261A (en) * | 1992-03-05 | 1993-11-30 | Qualcomm Incorporated | Mobile station assisted soft handoff in a CDMA cellular communications system |
| CA2175860C (en) * | 1995-06-02 | 2001-03-27 | Randall Wayne Rich | Apparatus and method for optimizing the quality of a received signal in a radio receiver |
| US5642377A (en) | 1995-07-25 | 1997-06-24 | Nokia Mobile Phones, Ltd. | Serial search acquisition system with adaptive threshold and optimal decision for spread spectrum systems |
| KR100321865B1 (ko) * | 1996-04-12 | 2002-03-08 | 다치카와 게이지 | 수신sir측정방법,장치및송신전력컨트롤러 |
| JPH09321559A (ja) * | 1996-05-24 | 1997-12-12 | Oki Electric Ind Co Ltd | 自動利得制御回路 |
| US5982811A (en) * | 1996-07-12 | 1999-11-09 | General Electric Company | Method for efficient sampling in a correlator |
-
1998
- 1998-03-25 US US09/048,454 patent/US6201954B1/en not_active Expired - Lifetime
- 1998-12-29 AR ARP980106732A patent/AR014214A1/es active IP Right Grant
-
1999
- 1999-03-23 CN CN99804371A patent/CN1123989C/zh not_active Expired - Lifetime
- 1999-03-23 AU AU33615/99A patent/AU3361599A/en not_active Abandoned
- 1999-03-23 EP EP05017256A patent/EP1605606B1/en not_active Expired - Lifetime
- 1999-03-23 WO PCT/US1999/006361 patent/WO1999049588A1/en not_active Ceased
- 1999-03-23 DE DE69943206T patent/DE69943206D1/de not_active Expired - Lifetime
- 1999-03-23 EP EP99914996A patent/EP1064732B1/en not_active Expired - Lifetime
- 1999-03-23 KR KR1020007010613A patent/KR100650020B1/ko not_active Expired - Lifetime
- 1999-03-23 JP JP2000538445A patent/JP2002508617A/ja active Pending
- 1999-03-23 DE DE69933924T patent/DE69933924T2/de not_active Expired - Lifetime
- 1999-09-28 TW TW088104738A patent/TW437191B/zh not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100650020B1 (ko) | 2006-11-27 |
| KR20010034666A (ko) | 2001-04-25 |
| EP1064732A1 (en) | 2001-01-03 |
| DE69933924T2 (de) | 2007-12-06 |
| EP1605606A2 (en) | 2005-12-14 |
| CN1294791A (zh) | 2001-05-09 |
| HK1034615A1 (en) | 2001-10-26 |
| AR014214A1 (es) | 2001-02-07 |
| DE69933924D1 (de) | 2006-12-21 |
| EP1605606A3 (en) | 2006-09-06 |
| AU3361599A (en) | 1999-10-18 |
| US6201954B1 (en) | 2001-03-13 |
| TW437191B (en) | 2001-05-28 |
| EP1064732B1 (en) | 2006-11-08 |
| EP1605606B1 (en) | 2011-02-16 |
| HK1086678A1 (en) | 2006-09-22 |
| WO1999049588A1 (en) | 1999-09-30 |
| JP2002508617A (ja) | 2002-03-19 |
| DE69943206D1 (de) | 2011-03-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Publication of application | ||
| 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 | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Holy land, California, Egypt Patentee after: Qualcomm Inc. Address before: Holy land, California, Egypt Patentee before: Qualcomm Inc. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20031008 |