IN2014KN01650A - - Google Patents

Info

Publication number
IN2014KN01650A
IN2014KN01650A IN1650KON2014A IN2014KN01650A IN 2014KN01650 A IN2014KN01650 A IN 2014KN01650A IN 1650KON2014 A IN1650KON2014 A IN 1650KON2014A IN 2014KN01650 A IN2014KN01650 A IN 2014KN01650A
Authority
IN
India
Prior art keywords
transmit antenna
base station
communications system
user equipments
common pilot
Prior art date
Application number
Inventor
Bo Göransson
Erik Larsson
Qingyu Miao
Sairamesh Nammi
Original Assignee
Optis Cellular Technology Llc
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 Optis Cellular Technology Llc filed Critical Optis Cellular Technology Llc
Publication of IN2014KN01650A publication Critical patent/IN2014KN01650A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • 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
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • 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
    • H04W52/34—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. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/38—TPC being performed in particular situations
    • H04W52/42—TPC being performed in particular situations in systems with time, space, frequency or polarisation diversity
    • 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
    • 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
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo

Abstract

The embodiments herein relate to a method in abase station (301) for determining adjustment of common pilot power in a four way transmit antenna 4Tx communications system (300). The base station (301) comprises a first transmit antenna (1201) a second transmit antenna (1202) a third transmit antenna (1203) and a fourth transmit antenna (1204). The base station (301) identifies a set of scheduled user equipments (310) in the communications system (300). The base station (301) determines that the common pilot power should be adjusted based on a criterion associated with the set of scheduled user equipments (310).
IN1650KON2014 2012-01-30 2013-01-22 IN2014KN01650A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201261592319P 2012-01-30 2012-01-30
PCT/SE2013/050047 WO2013115706A2 (en) 2012-01-30 2013-01-22 Method and apparatus for pilot power allocation in a multi antenna communication system

Publications (1)

Publication Number Publication Date
IN2014KN01650A true IN2014KN01650A (en) 2015-10-23

Family

ID=48905999

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1650KON2014 IN2014KN01650A (en) 2012-01-30 2013-01-22

Country Status (7)

Country Link
US (1) US9385904B2 (en)
EP (1) EP2810498A4 (en)
JP (1) JP2015506644A (en)
KR (1) KR20140127266A (en)
CN (1) CN104584654A (en)
IN (1) IN2014KN01650A (en)
WO (1) WO2013115706A2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013137814A2 (en) * 2012-03-16 2013-09-19 Telefonaktiebolaget L M Ericsson (Publ) Pilot channel configuration for mimo network
CN102655486B (en) * 2012-05-10 2014-12-31 华为技术有限公司 Pilot signal transmission method and channel estimation method, device and system
US8885590B2 (en) * 2012-05-18 2014-11-11 Futurewei Technologies, Inc. Systems and methods for scheduling multiple-input and multiple-output (MIMO) high-speed downlink packet access (HSDPA) pilot channels
EP2920934B1 (en) * 2012-11-14 2020-12-23 Telefonaktiebolaget LM Ericsson (publ) Pilot signal transmission method, associated transmit-receive point, pilot signal reception method and associated user equipment
EP2822344B1 (en) * 2013-07-03 2016-03-23 Telefonaktiebolaget LM Ericsson (publ) Transmission rank selection when deploying a shared radio cell
US9439153B1 (en) * 2014-04-07 2016-09-06 Sprint Spectrum L.P. Systems and methods for determining a power option for an access node
US10903951B2 (en) 2015-06-05 2021-01-26 Futurewei Technologies, Inc. Systems and methods for adaptive pilot allocation
KR20190006013A (en) * 2016-05-25 2019-01-16 후아웨이 테크놀러지 컴퍼니 리미티드 A method for setting channel transmit power of a remote radio unit,

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7218948B2 (en) * 2003-02-24 2007-05-15 Qualcomm Incorporated Method of transmitting pilot tones in a multi-sector cell, including null pilot tones, for generating channel quality indicators
KR100704676B1 (en) * 2005-06-24 2007-04-06 한국전자통신연구원 Diversity Method and Base-Station for Controlling Power Allocation of Transmit Antenna in Mobile Communication System
US8897269B2 (en) * 2008-01-30 2014-11-25 Qualcomm Incorporated Method and apparatus for mitigating pilot pollution in a wireless network
CN101527699A (en) * 2008-03-04 2009-09-09 中兴通讯股份有限公司 Self-adapting pilot frequency dispensing device and self-adapting pilot frequency dispensing method in OFDMA system
ES2360328B1 (en) * 2009-04-23 2012-05-08 Vodafone España S.A.U TRANSMISSION OF THE PILOT CHANNEL IN A CELLULAR COMMUNICATION NETWORK.
ES2360329B1 (en) * 2009-07-14 2012-05-08 Vodafone España, S.A.U. METHOD AND CONTROLLER OF RADIO NETWORK TO SELECT A TRANSMISSION TECHNOLOGY FOR COMMUNICATIONS IN MOBILE NETWORKS OF �? WIDE AREA.
CN102118841B (en) * 2010-06-18 2015-11-25 电信科学技术研究院 The method of sending and receiving of measurement pilot frequency and device, method for feedback of channel quality indication and device
CN103220028B (en) * 2012-01-21 2016-03-30 华为技术有限公司 Pilot signal transmitting method, channel estimation methods, Apparatus and system

Also Published As

Publication number Publication date
US9385904B2 (en) 2016-07-05
WO2013115706A2 (en) 2013-08-08
EP2810498A2 (en) 2014-12-10
CN104584654A (en) 2015-04-29
US20140056374A1 (en) 2014-02-27
JP2015506644A (en) 2015-03-02
KR20140127266A (en) 2014-11-03
EP2810498A4 (en) 2015-07-08
WO2013115706A3 (en) 2013-10-10

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