KR101433294B1 - 단일 사용자 검출과 다중 사용자 검출 간에 스위칭하기 위한 방법 및 장치 - Google Patents

단일 사용자 검출과 다중 사용자 검출 간에 스위칭하기 위한 방법 및 장치 Download PDF

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KR101433294B1
KR101433294B1 KR1020127021732A KR20127021732A KR101433294B1 KR 101433294 B1 KR101433294 B1 KR 101433294B1 KR 1020127021732 A KR1020127021732 A KR 1020127021732A KR 20127021732 A KR20127021732 A KR 20127021732A KR 101433294 B1 KR101433294 B1 KR 101433294B1
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subspace
received power
channel
pilot signals
wireless communications
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KR20120123447A (ko
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카필 브하타드
피터 가알
알렉세이 유리에비치 고로코브
주안 몬토조
나가 부샨
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퀄컴 인코포레이티드
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    • 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
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0689—Hybrid systems, i.e. switching and simultaneous transmission using different transmission schemes, at least one of them being a diversity transmission scheme
    • 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
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0697—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using spatial multiplexing
    • 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
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
    • 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
    • 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
    • H04L25/08—Modifications for reducing interference; Modifications for reducing effects due to line faults ; Receiver end arrangements for detecting or overcoming line faults
    • H04L25/085—Arrangements for reducing interference in line transmission systems, e.g. by differential transmission

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)
KR1020127021732A 2010-01-20 2011-01-20 단일 사용자 검출과 다중 사용자 검출 간에 스위칭하기 위한 방법 및 장치 Active KR101433294B1 (ko)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US29672010P 2010-01-20 2010-01-20
US61/296,720 2010-01-20
US13/009,174 2011-01-19
US13/009,174 US8983389B2 (en) 2010-01-20 2011-01-19 Method and apparatus for switching between single user detection and multi user detection
PCT/US2011/021937 WO2011146146A1 (en) 2010-01-20 2011-01-20 Method and apparatus for switching between single user detection and multi user detection

Publications (2)

Publication Number Publication Date
KR20120123447A KR20120123447A (ko) 2012-11-08
KR101433294B1 true KR101433294B1 (ko) 2014-08-22

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KR1020127021732A Active KR101433294B1 (ko) 2010-01-20 2011-01-20 단일 사용자 검출과 다중 사용자 검출 간에 스위칭하기 위한 방법 및 장치

Country Status (7)

Country Link
US (1) US8983389B2 (enExample)
EP (1) EP2526634B1 (enExample)
JP (1) JP5657699B2 (enExample)
KR (1) KR101433294B1 (enExample)
CN (1) CN102714531B (enExample)
TW (1) TW201141082A (enExample)
WO (1) WO2011146146A1 (enExample)

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KR20110048422A (ko) * 2009-11-02 2011-05-11 주식회사 팬택 채널 정보 피드백 장치와 그를 이용하는 통신단말장치 및 기지국 장치
US8238496B1 (en) * 2010-05-18 2012-08-07 Applied Micro Circuits Corporation Multiuser multiple-input multiple-output (MU-MIMO) channel estimation for multicarrier communications
KR101723263B1 (ko) * 2011-03-31 2017-04-04 선 페이턴트 트러스트 통신 시스템에 있어서 mu-cqi를 피드백하는 방법, 송신 포인트 장치 및 사용자 기기
US9215694B2 (en) * 2011-12-22 2015-12-15 Qualcomm Incorporated Reference signals design for time tracking in LTE-A
WO2013158023A1 (en) * 2012-04-17 2013-10-24 Telefonaktiebolaget L M Ericsson (Publ) Single carrier mode switching in component carrier receiver
US8781027B2 (en) 2012-05-10 2014-07-15 Intel Mobile Communications GmbH Apparatus and method for determining a precoding matrix
US8842782B2 (en) * 2012-05-10 2014-09-23 Intel Mobile Communications GmbH Apparatus and method for decoding a received signal
WO2015085588A1 (en) * 2013-12-13 2015-06-18 Qualcomm Incorporated Ue reference signal based channel estimation
US9998185B2 (en) * 2015-03-27 2018-06-12 Newracom, Inc. Aggregation methods and systems for multi-user MIMO or OFDMA operation
CN106470056B (zh) * 2015-08-21 2019-07-23 上海诺基亚贝尔股份有限公司 确定mimo模式间切换发生时的sinr阈值的方法与设备
EP3310013B1 (en) * 2016-10-13 2020-07-15 Nokia Technologies Oy Sharing resources in an unlicensed frequency band
CN108462551B (zh) * 2017-02-17 2020-10-23 瑞昱半导体股份有限公司 解调方法及接收装置
CN107515335A (zh) * 2017-09-01 2017-12-26 江苏爱吉亚电子科技有限公司 利用mu‑mimo技术的ota测试系统
CN111328441B (zh) * 2017-11-22 2022-02-01 华为技术有限公司 波束分配方法及装置
CN110120830B (zh) * 2018-02-07 2020-11-06 上海朗帛通信技术有限公司 一种基站、用户设备中的用于无线通信的方法和装置
CN115941117B (zh) * 2022-11-18 2024-05-31 哲库科技(北京)有限公司 检测方法、基带芯片、通信设备及检测装置

Citations (2)

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US20030125040A1 (en) * 2001-11-06 2003-07-03 Walton Jay R. Multiple-access multiple-input multiple-output (MIMO) communication system
US6832080B1 (en) * 2000-09-12 2004-12-14 Ericsson, Inc. Apparatus for and method of adapting a radio receiver using control functions

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JP3797510B2 (ja) 1997-07-16 2006-07-19 ソニー株式会社 通信方法、送信装置、受信装置及びセルラー無線通信システム
US7016436B1 (en) 1999-12-17 2006-03-21 Ericsson, Inc. Selective joint demodulation systems and methods for receiving a signal in the presence of noise and interference
JPWO2005029723A1 (ja) 2003-09-18 2006-11-30 三菱電機株式会社 移動体通信端末
US8804883B2 (en) * 2004-06-08 2014-08-12 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for reduced interference signal demodulation
JP4913641B2 (ja) 2007-03-20 2012-04-11 株式会社エヌ・ティ・ティ・ドコモ 基地局、通信端末、送信方法、受信方法、通信システム
JP4755137B2 (ja) 2007-05-01 2011-08-24 株式会社エヌ・ティ・ティ・ドコモ 基地局装置及び通信制御方法
JP5344121B2 (ja) * 2008-06-30 2013-11-20 日本電気株式会社 シングルキャリア伝送方式における無線通信方法および装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6832080B1 (en) * 2000-09-12 2004-12-14 Ericsson, Inc. Apparatus for and method of adapting a radio receiver using control functions
US20030125040A1 (en) * 2001-11-06 2003-07-03 Walton Jay R. Multiple-access multiple-input multiple-output (MIMO) communication system

Also Published As

Publication number Publication date
CN102714531B (zh) 2015-11-25
JP5657699B2 (ja) 2015-01-21
CN102714531A (zh) 2012-10-03
US20120021688A1 (en) 2012-01-26
EP2526634B1 (en) 2019-11-13
US8983389B2 (en) 2015-03-17
TW201141082A (en) 2011-11-16
WO2011146146A1 (en) 2011-11-24
EP2526634A1 (en) 2012-11-28
JP2013517747A (ja) 2013-05-16
KR20120123447A (ko) 2012-11-08

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