WO2010139516A3 - Method and apparatus for antenna virtualization for multimode diversity transmission - Google Patents

Method and apparatus for antenna virtualization for multimode diversity transmission Download PDF

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Publication number
WO2010139516A3
WO2010139516A3 PCT/EP2010/056093 EP2010056093W WO2010139516A3 WO 2010139516 A3 WO2010139516 A3 WO 2010139516A3 EP 2010056093 W EP2010056093 W EP 2010056093W WO 2010139516 A3 WO2010139516 A3 WO 2010139516A3
Authority
WO
WIPO (PCT)
Prior art keywords
antenna
signal
multimode
diversity transmission
mapping
Prior art date
Application number
PCT/EP2010/056093
Other languages
French (fr)
Other versions
WO2010139516A2 (en
Inventor
Hannu Tapio Hakkinen
Kari Petri Juhana Sipila
Original Assignee
Nokia Siemens Networks Oy
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 Nokia Siemens Networks Oy filed Critical Nokia Siemens Networks Oy
Publication of WO2010139516A2 publication Critical patent/WO2010139516A2/en
Publication of WO2010139516A3 publication Critical patent/WO2010139516A3/en

Links

Classifications

    • 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
    • H04B7/0613—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 simultaneous transmission
    • H04B7/0615—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 simultaneous transmission of weighted versions of same signal
    • H04B7/0617—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 simultaneous transmission of weighted versions of same signal for beam forming
    • 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
    • H04B7/0426—Power distribution
    • 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
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
    • H04B7/0473—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking constraints in layer or codeword to antenna mapping into account

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)
  • Power Engineering (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention refers to methods and an apparatus for transmitting data in a radio communications system, wherein for a multiple downlink transmission of a signal of a Node B, the Node B comprising at least a first antenna and a second antenna, precoding weights are applied for mapping the signal to the first antenna and to the second antenna, with a first precoding weight formula (I) for mapping the signal to the first antenna, and a second precoding weight w 2 for mapping the signal to the second antenna, with w 2 being the first precode or the fourth precode out of a set of four alternative precodes, the set of four alternative precodes being defined as formula (II).
PCT/EP2010/056093 2009-06-02 2010-05-05 Method and apparatus for antenna virtualization for multimode diversity transmission WO2010139516A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0909466.5 2009-06-02
GB0909466A GB0909466D0 (en) 2009-06-02 2009-06-02 Method and apparatus for antenna virtualization for multimode diversity transmission

Publications (2)

Publication Number Publication Date
WO2010139516A2 WO2010139516A2 (en) 2010-12-09
WO2010139516A3 true WO2010139516A3 (en) 2011-02-17

Family

ID=40902462

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2010/056093 WO2010139516A2 (en) 2009-06-02 2010-05-05 Method and apparatus for antenna virtualization for multimode diversity transmission

Country Status (2)

Country Link
GB (1) GB0909466D0 (en)
WO (1) WO2010139516A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585926B (en) * 2020-04-28 2021-07-27 北京升哲科技有限公司 Multi-antenna diversity receiver

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008133582A2 (en) * 2007-04-30 2008-11-06 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for adapting a multi-antenna transmission
WO2008157646A2 (en) * 2007-06-18 2008-12-24 University Of Florida Research Foundation , Inc. Mimo transmit beamforming under uniform elemental peak power constant

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008133582A2 (en) * 2007-04-30 2008-11-06 Telefonaktiebolaget L M Ericsson (Publ) Method and arrangement for adapting a multi-antenna transmission
WO2008157646A2 (en) * 2007-06-18 2008-12-24 University Of Florida Research Foundation , Inc. Mimo transmit beamforming under uniform elemental peak power constant

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
"3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Multiple Input Multiple Output in UTRA; (Release 7)", 3GPP STANDARD; 3GPP TR 25.876, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. V7.0.0, 1 March 2007 (2007-03-01), pages 1 - 76, XP050369277 *
"Universal Mobile Telecommunications System (UMTS); High Speed Downlink Packet Access (HSDPA); Overall description; Stage 2 (3GPP TS 25.308 version 8.5.0 Release 8); ETSI TS 125 308", ETSI STANDARD, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE (ETSI), SOPHIA ANTIPOLIS CEDEX, FRANCE, vol. 3-R2, no. V8.5.0, 1 April 2009 (2009-04-01), XP014043991 *
"Universal Mobile Telecommunications System (UMTS); Physical layer procedures (FDD) (3GPP TS 25.214 version 8.5.0 Release 8); ETSI TS 125 214", ETSI STANDARD, EUROPEAN TELECOMMUNICATIONS STANDARDS INSTITUTE (ETSI), SOPHIA ANTIPOLIS CEDEX, FRANCE, vol. 3-R1, no. V8.5.0, 1 March 2009 (2009-03-01), XP014043965 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111585926B (en) * 2020-04-28 2021-07-27 北京升哲科技有限公司 Multi-antenna diversity receiver

Also Published As

Publication number Publication date
GB0909466D0 (en) 2009-07-15
WO2010139516A2 (en) 2010-12-09

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