IL141909A - Channel estimates in a cdma system using power controls bits - Google Patents

Channel estimates in a cdma system using power controls bits

Info

Publication number
IL141909A
IL141909A IL14190999A IL14190999A IL141909A IL 141909 A IL141909 A IL 141909A IL 14190999 A IL14190999 A IL 14190999A IL 14190999 A IL14190999 A IL 14190999A IL 141909 A IL141909 A IL 141909A
Authority
IL
Israel
Prior art keywords
cdma system
channel estimates
power controls
controls bits
bits
Prior art date
Application number
IL14190999A
Other languages
English (en)
Other versions
IL141909A0 (en
Original Assignee
Ericsson Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ericsson Inc filed Critical Ericsson Inc
Publication of IL141909A0 publication Critical patent/IL141909A0/xx
Publication of IL141909A publication Critical patent/IL141909A/xx

Links

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
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
    • H04W52/362—Aspects of the step size
    • 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
    • H04L25/0228—Channel estimation using sounding signals with direct estimation from sounding signals
    • H04L25/023—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols
    • H04L25/0232—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals
    • H04L25/0234—Channel estimation using sounding signals with direct estimation from sounding signals with extension to other symbols by interpolation between sounding signals by non-linear interpolation

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
IL14190999A 1998-09-11 1999-06-23 Channel estimates in a cdma system using power controls bits IL141909A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/151,713 US6658050B1 (en) 1998-09-11 1998-09-11 Channel estimates in a CDMA system using power control bits
PCT/US1999/014240 WO2000016524A1 (en) 1998-09-11 1999-06-23 Channel estimates in a cdma system using power control bits

Publications (2)

Publication Number Publication Date
IL141909A0 IL141909A0 (en) 2002-03-10
IL141909A true IL141909A (en) 2005-09-25

Family

ID=22539946

Family Applications (1)

Application Number Title Priority Date Filing Date
IL14190999A IL141909A (en) 1998-09-11 1999-06-23 Channel estimates in a cdma system using power controls bits

Country Status (12)

Country Link
US (1) US6658050B1 (de)
EP (1) EP1112647B1 (de)
JP (1) JP3448566B2 (de)
KR (1) KR100680458B1 (de)
CN (1) CN1143491C (de)
AU (1) AU754226B2 (de)
BR (1) BR9913587A (de)
DE (1) DE69927836T2 (de)
EE (1) EE200100141A (de)
HK (1) HK1042392B (de)
IL (1) IL141909A (de)
WO (1) WO2000016524A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7120189B2 (en) 2000-03-21 2006-10-10 Interdigital Technology Corporation Weighted open loop power control
US8842711B2 (en) 2000-03-22 2014-09-23 Intel Corporation User equipment for controlling transmission power levels

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6600772B1 (en) * 2000-03-21 2003-07-29 Interdigital Communications Corporation Combined closed loop/open loop power control in a time division duplex communication system
US6947475B2 (en) * 2001-01-26 2005-09-20 Qualcomm Inc. Method and apparatus for estimating channel characteristics using pilot and non-pilot data
US7460605B2 (en) * 2001-11-15 2008-12-02 Lawrence Livermore National Security, Llc Time reversal communication system
US7133437B2 (en) 2002-01-31 2006-11-07 Qualcomm Incorporated Pilot interpolation for a gated pilot with compensation for induced phase changes
ES2280736T3 (es) * 2002-04-22 2007-09-16 Koninklijke Philips Electronics N.V. Sintetizacion de señal.
US7454209B2 (en) * 2002-09-05 2008-11-18 Qualcomm Incorporated Adapting operation of a communication filter based on mobile unit velocity
JP4604798B2 (ja) * 2004-05-10 2011-01-05 ソニー株式会社 無線通信システム、無線通信装置及び無線通信方法、並びにコンピュータ・プログラム
US7149264B2 (en) 2004-06-14 2006-12-12 Qualcomm, Incorporated CDMA pilot assisted channel estimation
KR100901670B1 (ko) 2004-06-14 2009-06-08 퀄컴 인코포레이티드 파일럿을 이용한 채널 추정 방법 및 장치
TWI252647B (en) * 2004-09-03 2006-04-01 Benq Corp Method for channel estimation
JP4531581B2 (ja) * 2005-02-09 2010-08-25 株式会社エヌ・ティ・ティ・ドコモ 無線通信用送受信装置における制御装置及び無線通信用送受信方法
US8965440B2 (en) 2005-05-31 2015-02-24 Alcatel Lucent Method of estimating a current channel condition in a wireless communications network
US7729715B2 (en) * 2005-12-30 2010-06-01 Motorola, Inc. Method and apparatus for power reduction for E-TFC selection
US9043044B2 (en) * 2012-12-11 2015-05-26 Electro-Motive Diesel, Inc. System and method for communicating data in a consist

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5485486A (en) * 1989-11-07 1996-01-16 Qualcomm Incorporated Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
US5519730A (en) * 1990-06-12 1996-05-21 Jasper; Steven C. Communication signal having a time domain pilot component
SE469052B (sv) 1991-09-10 1993-05-03 Ericsson Telefon Ab L M Foerfarande att bilda ett kanalestimat foer en tidsvarierande radiokanal
US5414734A (en) * 1993-01-06 1995-05-09 Glenayre Electronics, Inc. Compensation for multi-path interference using pilot symbols
US5812542A (en) * 1996-03-18 1998-09-22 Motorola, Inc. Method for determining weighting coefficients in a CDMA radio receiver
EP0668662A4 (de) * 1993-08-06 1997-02-12 Nippon Telegraph & Telephone Empfänger und funkrelais für spreizspektrumübertragung.
US5469471A (en) 1994-02-01 1995-11-21 Qualcomm Incorporated Method and apparatus for providing a communication link quality indication
FI941071A (fi) 1994-03-07 1995-09-08 Nokia Telecommunications Oy Tiedonsiirtomenetelmä, lähetin sekä vastaanotin
FI941072A (fi) 1994-03-07 1995-09-08 Nokia Mobile Phones Ltd Tiedonsiirtomenetelmä, lähetin sekä vastaanotin
JP2974274B2 (ja) * 1994-05-12 1999-11-10 エヌ・ティ・ティ移動通信網株式会社 送信電力制御方法および送信電力制御装置
US5603096A (en) * 1994-07-11 1997-02-11 Qualcomm Incorporated Reverse link, closed loop power control in a code division multiple access system
US5604730A (en) * 1994-07-25 1997-02-18 Qualcomm Incorporated Remote transmitter power control in a contention based multiple access system
FI98108C (fi) * 1995-05-17 1997-04-10 Nokia Mobile Phones Ltd Menetelmä yhteyden laadun arvioimiseksi ja vastaanotin
US5629934A (en) * 1995-06-30 1997-05-13 Motorola, Inc. Power control for CDMA communication systems
JP2785804B2 (ja) * 1996-05-30 1998-08-13 日本電気株式会社 移動通信システム
US6359938B1 (en) * 1996-10-31 2002-03-19 Discovision Associates Single chip VLSI implementation of a digital receiver employing orthogonal frequency division multiplexing
US5896411A (en) * 1997-05-05 1999-04-20 Northern Telecom Limited Enhanced reverse link power control in a wireless communication system
US6097972A (en) * 1997-08-29 2000-08-01 Qualcomm Incorporated Method and apparatus for processing power control signals in CDMA mobile telephone system

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7120189B2 (en) 2000-03-21 2006-10-10 Interdigital Technology Corporation Weighted open loop power control
US7289550B2 (en) 2000-03-21 2007-10-30 Interdigital Technology Corporation Weighted open loop power control system
US7532659B2 (en) 2000-03-21 2009-05-12 Interdigital Technology Corporation Weighted open loop power control transmitter cross reference to related applications
US7961773B2 (en) 2000-03-21 2011-06-14 Interdigital Technology Corporation Weighted open loop power control transmitter
US8767878B2 (en) 2000-03-21 2014-07-01 Intel Corporation Weighted open loop power control transmitter
US8842711B2 (en) 2000-03-22 2014-09-23 Intel Corporation User equipment for controlling transmission power levels

Also Published As

Publication number Publication date
WO2000016524A1 (en) 2000-03-23
IL141909A0 (en) 2002-03-10
KR20010075015A (ko) 2001-08-09
HK1042392A1 (en) 2002-08-09
JP2002525916A (ja) 2002-08-13
DE69927836D1 (de) 2006-03-02
US6658050B1 (en) 2003-12-02
EE200100141A (et) 2002-06-17
AU754226B2 (en) 2002-11-07
JP3448566B2 (ja) 2003-09-22
EP1112647A1 (de) 2001-07-04
DE69927836T2 (de) 2006-07-20
KR100680458B1 (ko) 2007-02-08
HK1042392B (zh) 2004-10-08
BR9913587A (pt) 2001-06-05
CN1143491C (zh) 2004-03-24
CN1326631A (zh) 2001-12-12
EP1112647B1 (de) 2005-10-19
AU4712299A (en) 2000-04-03

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Legal Events

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KB Patent renewed
MM9K Patent not in force due to non-payment of renewal fees