IN2014DN09406A - - Google Patents

Info

Publication number
IN2014DN09406A
IN2014DN09406A IN9406DEN2014A IN2014DN09406A IN 2014DN09406 A IN2014DN09406 A IN 2014DN09406A IN 9406DEN2014 A IN9406DEN2014 A IN 9406DEN2014A IN 2014DN09406 A IN2014DN09406 A IN 2014DN09406A
Authority
IN
India
Prior art keywords
rbs
uplink transmission
adaptation parameter
power control
transmission power
Prior art date
Application number
Inventor
Rui Fan
Jinhua Liu
Chan Li
Original Assignee
Ericsson Telefon Ab L M
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 Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of IN2014DN09406A publication Critical patent/IN2014DN09406A/en

Links

Classifications

    • 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
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0413—MIMO systems
    • H04B7/0452—Multi-user MIMO 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
    • H04W52/18—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. 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
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Abstract

The present invention relates to a method in a first User Equipment, UE served by an RBS of a wireless network for uplink power control at MU-MIMO scheduling. The method comprises obtaining (510) a power adaptation parameter for use in uplink transmission power control when the first UE is scheduled in pair with a second UE, or is scheduled de- paired from the second UE. The method also comprises receiving (520) an indication from the radio base station to use the obtained power adaptation parameter in uplink transmission power control, and adapting (530) an uplink transmission power based on the obtained power adaptation parameter and the received indication. The present invention also relates to the corresponding method in the RBS, and to the UE and the RBS.
IN9406DEN2014 2012-07-06 2012-07-06 IN2014DN09406A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/SE2012/050808 WO2014007712A1 (en) 2012-07-06 2012-07-06 Methods and nodes for multiple user mimo scheduling and power control

Publications (1)

Publication Number Publication Date
IN2014DN09406A true IN2014DN09406A (en) 2015-07-17

Family

ID=46634499

Family Applications (1)

Application Number Title Priority Date Filing Date
IN9406DEN2014 IN2014DN09406A (en) 2012-07-06 2012-07-06

Country Status (5)

Country Link
US (1) US9491711B2 (en)
EP (1) EP2870806B1 (en)
CN (1) CN104412674A (en)
IN (1) IN2014DN09406A (en)
WO (1) WO2014007712A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2870814B1 (en) * 2012-07-06 2018-03-14 Telefonaktiebolaget LM Ericsson (publ) Methods and nodes for multiple user mimo scheduling
CN104219748B (en) * 2014-09-17 2018-01-30 同济大学 A kind of energy-conservation and user scheduling method of large-scale and multiple users mimo system
CN105992366B (en) * 2015-03-04 2021-06-11 株式会社Ntt都科摩 Radio base station, mobile station, and method of determining transmission power
CN104968036A (en) * 2015-04-30 2015-10-07 芯讯通无线科技（上海）有限公司 Timing advance information emission method and timing advance information emission system
US20160330731A1 (en) * 2015-05-04 2016-11-10 Sprint Communications Company L.P. Dynamic implementation of uplink multi-user multiple input and multiple output
US9444533B1 (en) * 2015-05-22 2016-09-13 Sprint Communications Company L.P. Method to improve multiple user multiple input multiple output pairing in a network
GB2541390B (en) * 2015-08-14 2021-10-20 Tcl Communication Ltd Systems and methods for multi-user communication
CN106507461B (en) * 2015-09-08 2020-03-31 中兴通讯股份有限公司 Power adjustment method and device in uplink multi-user system
EP3537780A4 (en) * 2016-11-24 2019-11-06 Huawei Technologies Co., Ltd. Information transmission method, base station and terminal

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101055730B1 (en) * 2004-08-11 2011-08-11 엘지전자 주식회사 Uplink transmit power scheduling method
US8855046B2 (en) * 2006-03-30 2014-10-07 Broadcom Corporation Method and system for uplink coordinated reception in orthogonal frequency division multiple access systems
BRPI0717362A2 (en) * 2006-10-31 2014-04-01 Qualcomm Inc INTERCELL POWER CONTROL IN THE PRESENCE OF FRACTIONAL FREQUENCY REUSE.
EP2173041B1 (en) 2007-07-23 2017-03-01 Alcatel Lucent Power controlling method and corresponding base station
CN101557246B (en) 2008-04-07 2012-10-03 中国移动通信集团公司 Uplink power control method and device
EP2272210B1 (en) * 2008-04-28 2012-12-26 Apple Inc. Method and apparatus for spectrally efficient link adaptation using harq in ofdma systems
CN101867965B (en) 2009-04-15 2014-01-01 中兴通讯股份有限公司 User terminal pairing method and device in multi-user multi-input multi-output technology
US9474082B2 (en) * 2009-11-09 2016-10-18 Apple Inc. Method and apparatus for co-scheduling transmissions in a wireless network
JP5080607B2 (en) * 2010-04-05 2012-11-21 株式会社エヌ・ティ・ティ・ドコモ Radio base station apparatus and transmission power control method
US8724492B2 (en) * 2011-04-08 2014-05-13 Motorola Mobility Llc Method and apparatus for multi-radio coexistence on adjacent frequency bands
EP2870814B1 (en) * 2012-07-06 2018-03-14 Telefonaktiebolaget LM Ericsson (publ) Methods and nodes for multiple user mimo scheduling
WO2014007707A1 (en) * 2012-07-06 2014-01-09 Telefonaktiebolaget L M Ericsson (Publ) Methods and nodes for multiple user mimo scheduling

Also Published As

Publication number Publication date
EP2870806A1 (en) 2015-05-13
CN104412674A (en) 2015-03-11
US9491711B2 (en) 2016-11-08
WO2014007712A1 (en) 2014-01-09
US20150131572A1 (en) 2015-05-14
EP2870806B1 (en) 2020-03-04

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