CA2295085C - Method and apparatus for downlink power control in macro diversity radio systems - Google Patents

Method and apparatus for downlink power control in macro diversity radio systems Download PDF

Info

Publication number
CA2295085C
CA2295085C CA002295085A CA2295085A CA2295085C CA 2295085 C CA2295085 C CA 2295085C CA 002295085 A CA002295085 A CA 002295085A CA 2295085 A CA2295085 A CA 2295085A CA 2295085 C CA2295085 C CA 2295085C
Authority
CA
Canada
Prior art keywords
downlink
uplink
quality
uplink signal
measuring
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
Application number
CA002295085A
Other languages
English (en)
French (fr)
Other versions
CA2295085A1 (en
Inventor
Magnus Almgren
Magnus Frodigh
Mikael Gudmundson
Fredric Kronestedt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Publication of CA2295085A1 publication Critical patent/CA2295085A1/en
Application granted granted Critical
Publication of CA2295085C publication Critical patent/CA2295085C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
    • 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
    • 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]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
    • 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]
    • H04W52/38—TPC being performed in particular situations
    • H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Transmitters (AREA)
CA002295085A 1997-06-23 1998-06-16 Method and apparatus for downlink power control in macro diversity radio systems Expired - Lifetime CA2295085C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/880,746 US6104933A (en) 1997-06-23 1997-06-23 Method and apparatus for control of base stations in macro diversity radio systems
US08/880,746 1997-06-23
PCT/SE1998/001169 WO1998059433A2 (en) 1997-06-23 1998-06-16 Method and apparatus for downlink power control in macro diversity radio systems

Publications (2)

Publication Number Publication Date
CA2295085A1 CA2295085A1 (en) 1998-12-30
CA2295085C true CA2295085C (en) 2007-01-09

Family

ID=25376983

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002295085A Expired - Lifetime CA2295085C (en) 1997-06-23 1998-06-16 Method and apparatus for downlink power control in macro diversity radio systems

Country Status (8)

Country Link
US (1) US6104933A (enExample)
EP (1) EP0997008B1 (enExample)
JP (1) JP4138028B2 (enExample)
AU (1) AU7948898A (enExample)
CA (1) CA2295085C (enExample)
DE (1) DE69841958D1 (enExample)
TW (1) TW387176B (enExample)
WO (1) WO1998059433A2 (enExample)

Families Citing this family (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6700879B1 (en) * 1998-03-30 2004-03-02 Nortel Networks Limited Modem loop rate adaptation
KR100317011B1 (ko) * 1998-09-07 2001-12-22 마츠시타 덴끼 산교 가부시키가이샤 통신 단말 장치, 기지국 통신 장치 및 무선 통신 방법
US6512925B1 (en) * 1998-12-03 2003-01-28 Qualcomm, Incorporated Method and apparatus for controlling transmission power while in soft handoff
FR2789534B1 (fr) * 1999-02-04 2001-06-08 Cit Alcatel Procede d'estimation du rapport signal a bruit d'un signal numerique recu par un recepteur de radiocommunications
US6862447B1 (en) * 1999-02-16 2005-03-01 Lucent Technologies Inc. Method of making downlink operational measurements in a wireless communication system
US7076264B2 (en) * 1999-02-19 2006-07-11 Qualcomm, Inc. Power control in a cellular system using ES/IO and NT/I0 values
US6515975B1 (en) * 1999-04-22 2003-02-04 Nortel Networks Limited Fast forward power control during soft handoff
GB2350753B (en) * 1999-06-04 2003-12-10 Fujitsu Ltd Measuring channel characteristics in mobile communications networks
DE69926737T2 (de) * 1999-06-18 2006-06-08 Alcatel Verfahren zur Abwärtsrichtungsleistungssteuerung und Zellulares Netzwerk welches dieses Verfahren
JP2001077724A (ja) 1999-09-07 2001-03-23 Nec Corp 送信電力制御装置および送信電力制御方法
JP4695803B2 (ja) * 1999-09-08 2011-06-08 モトローラ・インコーポレイテッド 通信システムにおけるリンクの選択
FI19991940A7 (fi) 1999-09-10 2001-03-11 Nokia Corp Lähetysdiversiteetti
US6628958B1 (en) 1999-09-15 2003-09-30 Lucent Technologies Inc. Method for adjusting the transmit power level during soft handoff in wireless communication systems
US6563810B1 (en) * 1999-09-30 2003-05-13 Qualcomm Incorporated Closed loop resource allocation
GB9926438D0 (en) 1999-11-08 2000-01-12 Nokia Networks Oy A method of reducing transmission power in a wireless communication system
JP3365379B2 (ja) 1999-12-13 2003-01-08 日本電気株式会社 基地局選択型送信電力制御方法及び基地局装置
US6553016B1 (en) * 1999-12-20 2003-04-22 Telfonaktiebolaget Lm Ericsson (Publ) Downlink power control at soft handover
US6512933B1 (en) * 2000-02-29 2003-01-28 Verizon Laboratories Inc. Iterative system and method for optimizing CDMA load distribution using reverse interference measurements
FR2809252B1 (fr) 2000-05-17 2003-10-03 Cit Alcatel Procede d'ajustement de puissance d'emission par des stations de base transmettant en macro-diversite
US8099122B1 (en) 2000-06-05 2012-01-17 Qualcomm Incorporated Method and apparatus for improved forward link power control while in soft handoff
JP3848068B2 (ja) * 2000-09-12 2006-11-22 株式会社エヌ・ティ・ティ・ドコモ Ｃｄｍａ無線送信装置、ｃｄｍａ無線送受信システムおよびｃｄｍａ無線送信装置の送信電力制御方法ならびにｃｄｍａ無線送受信システムにおける無線送信装置の送信電力制御方法
US8155096B1 (en) * 2000-12-01 2012-04-10 Ipr Licensing Inc. Antenna control system and method
US7016332B2 (en) * 2000-12-05 2006-03-21 Science Applications International Corporation Method and system for a remote downlink transmitter for increasing the capacity of a multiple access interference limited spread-spectrum wireless network
US7061891B1 (en) 2001-02-02 2006-06-13 Science Applications International Corporation Method and system for a remote downlink transmitter for increasing the capacity and downlink capability of a multiple access interference limited spread-spectrum wireless network
WO2002080382A1 (en) * 2001-03-30 2002-10-10 Science Applications International Corporation Multistage reception of code division multiple access transmissions
US7961616B2 (en) 2001-06-07 2011-06-14 Qualcomm Incorporated Method and apparatus for congestion control in a wireless communication system
GB2376843B (en) * 2001-06-18 2005-01-12 Ubinetics Ltd A transmitter station and a radiotelephone system including a transmitter station
US7209511B2 (en) * 2001-08-31 2007-04-24 Ericsson Inc. Interference cancellation in a CDMA receiving system
US7224942B2 (en) 2001-07-26 2007-05-29 Telefonaktiebolaget Lm Ericsson (Publ) Communications system employing non-polluting pilot codes
US20030045297A1 (en) * 2001-08-24 2003-03-06 Dent Paul W. Communication system employing channel estimation loop-back signals
US6996380B2 (en) * 2001-07-26 2006-02-07 Ericsson Inc. Communication system employing transmit macro-diversity
US7197282B2 (en) * 2001-07-26 2007-03-27 Ericsson Inc. Mobile station loop-back signal processing
US7006461B2 (en) 2001-09-17 2006-02-28 Science Applications International Corporation Method and system for a channel selective repeater with capacity enhancement in a spread-spectrum wireless network
CA2408423C (en) * 2001-10-17 2013-12-24 Nec Corporation Mobile communication system, communication control method, base station and mobile station to be used in the same
AU2002223706A1 (en) * 2001-11-16 2003-06-17 Nokia Corporation Optimizing data transfer in radio system
US7389112B2 (en) * 2001-12-07 2008-06-17 Telefonaktiebolaget L M Ericsson (Publ) Mobile terminal for optimal spectrum utilization in cellular systems
WO2004002181A1 (en) 2002-06-25 2003-12-31 Nokia Corporation Method and system to optimise soft handover gain in networks such as cdma networks
US7680052B2 (en) * 2002-12-16 2010-03-16 Qualcomm Incorporated Closed loop resource allocation
US7184492B2 (en) * 2003-02-10 2007-02-27 Ericsson Inc. Using antenna arrays in multipath environment
JP4084683B2 (ja) * 2003-03-04 2008-04-30 株式会社エヌ・ティ・ティ・ドコモ 移動通信システム、無線制御装置、基地局及び送信電力制御方法
AU2003221237A1 (en) * 2003-03-28 2004-10-18 Utstarcom (China) Co, Ltd. A method for determining reference power in the downlink power balance technology in the case of soft hand-off
US6978139B2 (en) * 2003-05-16 2005-12-20 Motorola, Inc. Method and apparatus for performing soft-handoff in a wireless communication system
CN100508630C (zh) * 2003-06-30 2009-07-01 摩托罗拉公司 在无线通信系统中执行软切换的方法和设备
FI120570B (fi) * 2003-12-23 2009-11-30 Teliasonera Finland Oyj Datan lähettäminen merellä
EP1739858A4 (en) * 2004-03-01 2014-12-24 Nec Corp WIRELESS BASE STATION UNIT AND METHOD OF TRANSMISSION POWER MANAGEMENT
EP1727296A1 (en) * 2005-05-23 2006-11-29 Siemens S.p.A. Method and device for downlink resource allocation for packet transmission of users of radio communication systems
US8023955B2 (en) 2005-08-22 2011-09-20 Sony Corporation Uplink resource allocation to control intercell interference in a wireless communication system
KR20070047636A (ko) * 2005-11-02 2007-05-07 삼성전자주식회사 무선 통신 시스템에서 역방향 로드 제어 장치 및 방법
WO2007083948A1 (en) * 2006-01-20 2007-07-26 Samsung Electronics Co., Ltd. Method and apparatus for open loop power control in frequency division multiple access system
US8032091B2 (en) * 2007-03-14 2011-10-04 Magnolia Broadband Inc. Method, apparatus and system for providing transmit diversity feedback during soft handoff
US8699968B2 (en) 2007-03-14 2014-04-15 Google Inc. Using multiple and a single feedback for UE uplink beamforming in soft handoff
US8194623B2 (en) * 2008-06-27 2012-06-05 Ntt Docomo, Inc. Evolving-type user resource structure/channelization with enhanced diversity for OFDMA based time-varying channels
WO2010099028A2 (en) * 2009-02-24 2010-09-02 Ryan David J Determining time varying radio frequency isolation characteristics between network cells
WO2013184051A1 (en) * 2012-06-05 2013-12-12 Telefonaktiebolaget L M Ericsson (Publ) Method for selecting antennas to be included in a set of receiving antennas
US9591543B2 (en) 2014-10-08 2017-03-07 Telefonaktiebolaget Lm Ericsson (Publ) Handover control

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5056109A (en) * 1989-11-07 1991-10-08 Qualcomm, Inc. Method and apparatus for controlling transmission power in a cdma cellular mobile telephone system
US5175867A (en) * 1991-03-15 1992-12-29 Telefonaktiebolaget L M Ericsson Neighbor-assisted handoff in a cellular communications system
US5309503A (en) * 1991-12-06 1994-05-03 Motorola, Inc. Dynamic channel assignment in a communication system
US5345598A (en) * 1992-04-10 1994-09-06 Ericsson-Ge Mobile Communications Holding, Inc. Duplex power control system in a communication network
DE59408295D1 (de) * 1993-03-19 1999-07-01 Siemens Ag Verfahren zur Sendeleistungsregelung einer Mobilstation in einem zellularen Mobilfunknetz
US5507035A (en) * 1993-04-30 1996-04-09 International Business Machines Corporation Diversity transmission strategy in mobile/indoor cellula radio communications
ZA948133B (en) * 1993-10-28 1996-05-17 Qualcomm Inc Method and apparatus for reducing the average transmit power from a sectorized base station
IT1261365B (it) * 1993-12-02 1996-05-20 Cselt Centro Studi Lab Telecom Procedimento e dispositivo per il controllo di potenza nella tratta stazione base-mezzo mobile di un sistema radiomobile con accesso a divisione di codice
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
US5586170A (en) * 1994-08-19 1996-12-17 Georgia Tech Research Corporation Cellular devices, systems and methods using intercell macro-diversity and dynamic channel allocation
US5475870A (en) * 1994-09-12 1995-12-12 Qualcomm Incorporated Apparatus and method for adding and removing a base station from a cellular communications system
US5574466A (en) * 1995-03-31 1996-11-12 Motorola, Inc. Method for wireless communication system planning
WO1997008847A1 (en) * 1995-08-31 1997-03-06 Nokia Telecommunications Oy Method and device for controlling transmission power of a radio transmitter in a cellular communication system
WO1997008911A1 (en) * 1995-08-31 1997-03-06 Nokia Telecommunications Oy A handover method, and a cellular radio system
US5926747A (en) * 1996-09-05 1999-07-20 Airnet Communications Corp. Method and apparatus for dynamically optimizing the forward-link transmit power of a broadband multi-carrier radio signal
US5946621A (en) * 1996-10-28 1999-08-31 Northern Telecom Limited Method of optimizing neighbor set during soft handoff of a mobile unit in a CDMA cellular environment

Also Published As

Publication number Publication date
WO1998059433A3 (en) 1999-07-08
TW387176B (en) 2000-04-11
DE69841958D1 (de) 2010-12-02
AU7948898A (en) 1999-01-04
WO1998059433A2 (en) 1998-12-30
EP0997008A2 (en) 2000-05-03
CA2295085A1 (en) 1998-12-30
EP0997008B1 (en) 2010-10-20
JP4138028B2 (ja) 2008-08-20
US6104933A (en) 2000-08-15
JP2002505819A (ja) 2002-02-19

Similar Documents

Publication Publication Date Title
CA2295085C (en) Method and apparatus for downlink power control in macro diversity radio systems
US7006841B2 (en) Method to control base station transmit power drift during soft handoffs
CA2348990C (en) Use of mobile locating and power control for radio network optimization
EP2415295B1 (en) Communications device and methods for interference mitigation in a wireless communications system
EP1692897B1 (en) Transmission power level setting during channel assignment for interference balancing in a cellular wireless communication system
EP1334633B1 (en) Mode switching in adaptive array communications systems
EP2002562B1 (en) Radio coverage enhancement
AU5864499A (en) Power control in a radio system
KR20120094222A (ko) 재구성 가능한 안테나를 사용하는 기지국에서 인접 기지국 사이의 하향링크 간섭을 제거하기 위한 방법 및 장치
EP1442535B1 (en) Controlling forward link transmission power
US7200407B1 (en) Multiple reuse patterns for channels of wireless networks
EP1453222B1 (en) Mobile communication system, radio controller, base station and transmission power controlling method
US7797012B1 (en) Method of controlling power
CA2290406C (en) Base station (apparatus and method) with directivity and transmission power control
US7158807B2 (en) Equalizing signal-to-interference ratios of different physical channels supporting a coded composite transport channel
JP2004072663A (ja) アンテナ制御装置
US9609654B1 (en) Beam steering techniques applied to cellular systems
EP2363964A1 (en) Sub-channel transmission mode modification
JP2002058063A (ja) セルラシステム及び基地局
KR100715753B1 (ko) 무선 통신 시스템, 기지국 장치 및 그것에 이용하는 하향 송신 지향 특성 제어 방법 및 기록 매체
JP3972005B2 (ja) 移動通信システム、無線制御装置、基地局及び送信電力制御方法
KR101162972B1 (ko) 역방향 링크 전력 제어
US20070049203A1 (en) System and method for adjusting the coverage footprint of an antenna
Zurbes Power control in simulcast digital cellular radio networks
Al-Akaidi et al. Resource allocation algorithms and power control for cellular systems

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20180618