TWI343725B - Improved path loss measurements in wireless communications - Google Patents

Improved path loss measurements in wireless communications Download PDF

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Publication number
TWI343725B
TWI343725B TW095146535A TW95146535A TWI343725B TW I343725 B TWI343725 B TW I343725B TW 095146535 A TW095146535 A TW 095146535A TW 95146535 A TW95146535 A TW 95146535A TW I343725 B TWI343725 B TW I343725B
Authority
TW
Taiwan
Prior art keywords
measurement
path loss
channel
time slot
wtru
Prior art date
Application number
TW095146535A
Other languages
English (en)
Chinese (zh)
Other versions
TW200742313A (en
Inventor
Shin Sung-Hyuk
Rudolf Marian
G Dick Stephen
Original Assignee
Interdigital Tech Corp
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 Interdigital Tech Corp filed Critical Interdigital Tech Corp
Publication of TW200742313A publication Critical patent/TW200742313A/zh
Application granted granted Critical
Publication of TWI343725B publication Critical patent/TWI343725B/zh

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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]
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink 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
    • H04B17/318—Received signal strength
    • H04B17/327—Received signal code power [RSCP]
    • 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
    • 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
    • H04B7/2603—Arrangements for wireless physical layer control
    • H04B7/2609—Arrangements for range control, e.g. by using remote antennas
    • 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
    • H04B7/2662—Arrangements for Wireless System Synchronisation
    • H04B7/2671—Arrangements for Wireless Time-Division Multiple Access [TDMA] System Synchronisation
    • 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]
    • H04W52/06—TPC algorithms
    • H04W52/10—Open loop power control
    • 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]
    • 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
    • H04W52/228—TPC being performed according to specific parameters taking into account previous information or commands using past power values or information
    • 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]
    • 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
    • H04W52/242—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account path loss
    • 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]
    • 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
    • H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
    • 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]
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure

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)
  • Time-Division Multiplex Systems (AREA)
TW095146535A 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications TWI343725B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US43270302P 2002-12-11 2002-12-11

Publications (2)

Publication Number Publication Date
TW200742313A TW200742313A (en) 2007-11-01
TWI343725B true TWI343725B (en) 2011-06-11

Family

ID=32507987

Family Applications (3)

Application Number Title Priority Date Filing Date
TW095146535A TWI343725B (en) 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications
TW092134938A TWI249296B (en) 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications
TW093120817A TWI333343B (en) 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications

Family Applications After (2)

Application Number Title Priority Date Filing Date
TW092134938A TWI249296B (en) 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications
TW093120817A TWI333343B (en) 2002-12-11 2003-12-10 Improved path loss measurements in wireless communications

Country Status (16)

Country Link
US (1) US7372898B2 (https=)
EP (2) EP2099246A1 (https=)
JP (1) JP4546254B2 (https=)
KR (3) KR20100110395A (https=)
CN (2) CN103327522B (https=)
AR (1) AR042364A1 (https=)
AT (1) ATE437484T1 (https=)
AU (1) AU2003299605A1 (https=)
BR (1) BR0316762A (https=)
CA (1) CA2509640A1 (https=)
DE (1) DE60328525D1 (https=)
IL (1) IL169102A0 (https=)
MX (1) MXPA05006218A (https=)
NO (1) NO20053256L (https=)
TW (3) TWI343725B (https=)
WO (1) WO2004054135A1 (https=)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6597723B1 (en) * 2000-03-21 2003-07-22 Interdigital Technology Corporation Weighted open loop power control in a time division duplex communication system
US6978151B2 (en) * 2001-05-10 2005-12-20 Koninklijke Philips Electronics N.V. Updating path loss estimation for power control and link adaptation in IEEE 802.11h WLAN
WO2005022798A1 (en) 2003-08-25 2005-03-10 Interdigital Technology Corporation Enhanced uplink operation in soft handover
US7046648B2 (en) 2003-11-05 2006-05-16 Interdigital Technology Corporation Wireless communication method and apparatus for coordinating Node-B's and supporting enhanced uplink transmissions during handover
TW200721861A (en) * 2005-09-09 2007-06-01 Nokia Corp Use of measurement pilot for radio measurement in a wireless network
JP4711844B2 (ja) * 2006-02-08 2011-06-29 株式会社エヌ・ティ・ティ・ドコモ 無線通信システムにおける上りリンクのチャネル構成
ATE450939T1 (de) * 2006-03-01 2009-12-15 Research In Motion Ltd System und verfahren zur schätzung der streckendämpfung in einem funkkommunikationssystem
US7505766B2 (en) 2006-03-01 2009-03-17 Research In Motion Limited System for determining conducted radio frequency (RF) receiver sensitivity and related methods
EP1830496B1 (en) * 2006-03-01 2008-11-12 Research In Motion Limited System and method for determining path loss with hysteresis in a radio communication system
US7555293B2 (en) 2006-03-01 2009-06-30 Research In Motion Limited System for determining RF path loss between an RF source and an RF receiver and related methods
US7555295B2 (en) 2006-03-01 2009-06-30 Research In Motion Limited System for determining radiated radio frequency (RF) receiver sensitivity and related methods
US7489905B2 (en) 2006-03-01 2009-02-10 Research In Motion Limited System for determining RF path loss between an RF source and an RF receiver with hysteresis and related methods
US7555294B2 (en) 2006-03-01 2009-06-30 Research In Motion Limited System for determining total isotropic sensitivity (TIS) and related methods
CA2878737C (en) 2006-10-03 2018-10-02 Interdigital Technology Corporation Combined open loop/closed loop (cqi-based) uplink transmit power control with interference mitigation for e-utra
US8009639B2 (en) * 2006-12-27 2011-08-30 Wireless Technology Solutions Llc Feedback control in an FDD TDD-CDMA system
KR101397135B1 (ko) * 2007-03-07 2014-05-22 인터디지탈 테크날러지 코포레이션 이동국의 업링크 전력을 제어하기 위한 결합형 개방 루프/폐쇄 루프 방법
US8811928B2 (en) * 2007-03-26 2014-08-19 Telefonaktiebolaget L M Ericsson (Publ) Method and a device for finding imperfections in an RF path
KR100926363B1 (ko) * 2007-08-23 2009-11-10 주식회사 케이티 링크 균형 확인 장치 및 그 방법
WO2009031953A1 (en) * 2007-09-04 2009-03-12 Telefonaktiebolaget Lm Ericsson (Publ) Improved signal quality measurement in a time division duplex system
JP5209780B2 (ja) * 2008-03-27 2013-06-12 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Ｔｄｄ通信システム内のアップリンク電力制御
US8170489B2 (en) 2008-06-04 2012-05-01 Research In Motion Limited System and methods for determining radiated radio frequency (RF) receiver sensitivity
CN102138293A (zh) * 2008-08-27 2011-07-27 株式会社Ntt都科摩 移动台和移动通信方法
KR101278031B1 (ko) 2008-12-22 2013-06-21 한국전자통신연구원 병렬 자동 주파수 오프셋 추정장치 및 방법
FR2941126B1 (fr) 2009-01-14 2017-10-13 Canon Kk Procedes de configuration d'antennes d'emission et de reception, produit programme d'ordinateur, moyen de stockage et noeuds correspondants
FR2941127B1 (fr) * 2009-01-14 2012-11-23 Canon Kk Procedes de configuration de parametres de puissance d'emission en mode point-a-point dans un reseau de communication, produit programme d'ordinateur, moyen de stockage et noeuds correspondants
JP2010220214A (ja) * 2009-03-17 2010-09-30 Kotatsu Kokusai Denshi Kofun Yugenkoshi 多重コンポーネント・キャリアで多重リンクを設立する方法及び関連する通信装置
US8989105B2 (en) 2009-03-17 2015-03-24 Htc Corporation Method of establishing multiple links with multiple component carriers and related communication device
US8908616B2 (en) 2010-07-15 2014-12-09 Canon Kabushiki Kaisha Methods and devices for transmitting and receiving data signals in a wireless network over a plurality of transmission paths
US9730164B2 (en) 2012-01-30 2017-08-08 Qualcomm, Incorporated Power control management in uplink (UL) coordinated multipoint (CoMP) transmission
JP2013219507A (ja) 2012-04-06 2013-10-24 Ntt Docomo Inc 無線通信方法、ローカルエリア基地局装置、移動端末装置及び無線通信システム
US20140029582A1 (en) * 2012-07-27 2014-01-30 Qualcomm Incorporated Method and apparatus for a power control mechanism
US9179244B2 (en) * 2012-08-31 2015-11-03 Apple Inc. Proximity and tap detection using a wireless system
US9591587B2 (en) * 2014-05-07 2017-03-07 Qualcomm Incorporated Maximum pathloss measurement for broadcast communication
US20160270102A1 (en) 2015-03-14 2016-09-15 Qualcomm Incorporated Distributed scheduling to control interference for data transactions using grant-less transmissions
US9253727B1 (en) * 2015-05-01 2016-02-02 Link Labs, Inc. Adaptive transmission energy consumption
JP2016105636A (ja) * 2016-02-01 2016-06-09 株式会社Ｎｔｔドコモ 移動端末装置、無線基地局及び無線通信方法
WO2018187977A1 (zh) * 2017-04-12 2018-10-18 Oppo广东移动通信有限公司 上行功率控制方法、设备及系统
CN111148205B (zh) * 2018-11-02 2022-03-25 华为技术有限公司 发送功率的确定方法和装置
US11743836B2 (en) 2019-12-13 2023-08-29 Qualcomm Incorporated Reduction of path loss (PL) reference signal (RS) application time

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6101179A (en) * 1997-09-19 2000-08-08 Qualcomm Incorporated Accurate open loop power control in a code division multiple access communication system
JP3821331B2 (ja) * 1997-10-31 2006-09-13 ソニー株式会社 通信端末装置及びセルラー無線通信システム並びに情報通信方法
MY129851A (en) * 1999-03-22 2007-05-31 Interdigital Tech Corp Weighted open loop power control in a time division duplex communication system
ATE441301T1 (de) * 1999-07-09 2009-09-15 Sony Deutschland Gmbh Zellreichweiten-erweiterung in radiokommunikationssystemen mit leistungsregelung der abwärtsrichtung
DE69936990T2 (de) * 1999-10-06 2008-01-10 Matsushita Electric Industrial Co., Ltd., Kadoma Ortungssystem für ein Mobiltelefonnetz
US6597723B1 (en) * 2000-03-21 2003-07-22 Interdigital Technology Corporation Weighted open loop power control in a time division duplex communication system
US6603797B1 (en) * 2000-03-22 2003-08-05 Interdigital Technology Corporation Outer loop/weighted open loop power control in a time division duplex communication system
US20030108274A1 (en) * 2000-08-22 2003-06-12 Dan Haronian Mode coupled optomechanical devices
CN1162997C (zh) * 2000-10-04 2004-08-18 三星电子株式会社 用于移动通信系统中下行链路共享信道的功率控制的装置和方法
US7151740B2 (en) * 2001-02-28 2006-12-19 Cingular Wireless Ii, Llc Transmit power control for an OFDM-based wireless communication system
US6587697B2 (en) * 2001-05-14 2003-07-01 Interdigital Technology Corporation Common control channel uplink power control for adaptive modulation and coding techniques
EP1261147A1 (en) * 2001-05-21 2002-11-27 Motorola, Inc. A method and system for simultaneous bi-directional wireless communication between a user station and first and second base stations
GB2381417A (en) * 2001-10-24 2003-04-30 Ipwireless Inc Transmission power control based on path loss
US6952591B2 (en) * 2001-11-20 2005-10-04 Lucent Technologies Inc. Uplink power control algorithm
RU2231927C1 (ru) 2002-11-22 2004-06-27 Федеральное государственное унитарное предприятие Научно-производственное предприятие "Полет" Способ радиосвязи с подвижными объектами

Also Published As

Publication number Publication date
CN103327522B (zh) 2016-06-01
CN1726662A (zh) 2006-01-25
CN103327522A (zh) 2013-09-25
EP2099246A1 (en) 2009-09-09
TW200414709A (en) 2004-08-01
KR101025841B1 (ko) 2011-03-30
MXPA05006218A (es) 2005-08-19
US20040170132A1 (en) 2004-09-02
BR0316762A (pt) 2005-10-25
AU2003299605A1 (en) 2004-06-30
TW200742313A (en) 2007-11-01
JP2006510260A (ja) 2006-03-23
EP1579602A1 (en) 2005-09-28
TWI249296B (en) 2006-02-11
WO2004054135A1 (en) 2004-06-24
CN1726662B (zh) 2013-06-19
KR20050099645A (ko) 2005-10-14
EP1579602B1 (en) 2009-07-22
CA2509640A1 (en) 2004-06-24
DE60328525D1 (de) 2009-09-03
ATE437484T1 (de) 2009-08-15
KR20100110395A (ko) 2010-10-12
AR042364A1 (es) 2005-06-15
KR20050091000A (ko) 2005-09-14
NO20053256L (no) 2005-07-01
TWI333343B (en) 2010-11-11
IL169102A0 (en) 2007-07-04
EP1579602A4 (en) 2006-01-18
TW200518501A (en) 2005-06-01
JP4546254B2 (ja) 2010-09-15
US7372898B2 (en) 2008-05-13
KR101025839B1 (ko) 2011-03-30

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