GB2495168B - Method and apparatus for multiple input multiple output distributed antenna arrays - Google Patents

Method and apparatus for multiple input multiple output distributed antenna arrays

Info

Publication number
GB2495168B
GB2495168B GB1211156.3A GB201211156A GB2495168B GB 2495168 B GB2495168 B GB 2495168B GB 201211156 A GB201211156 A GB 201211156A GB 2495168 B GB2495168 B GB 2495168B
Authority
GB
United Kingdom
Prior art keywords
transmission
joint
user terminal
points
precoding matrix
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.)
Active
Application number
GB1211156.3A
Other versions
GB2495168A (en
GB201211156D0 (en
Inventor
Tommi Tapani Koivisto
Mihai Horatiu Enescu
Timo E Roman
Karol Schober
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.)
Renesas Electronics Corp
Original Assignee
Renesas Mobile Corp
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 Renesas Mobile Corp filed Critical Renesas Mobile Corp
Priority to GB1211156.3A priority Critical patent/GB2495168B/en
Publication of GB201211156D0 publication Critical patent/GB201211156D0/en
Publication of GB2495168A publication Critical patent/GB2495168A/en
Application granted granted Critical
Publication of GB2495168B publication Critical patent/GB2495168B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [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
    • H04B7/0413—MIMO systems
    • H04B7/0456—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
    • H04B7/0486—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking channel rank into account
    • 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
    • H04B7/0619—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 using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • 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
    • H04B7/0619—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 using feedback from receiving side
    • H04B7/0636—Feedback format
    • H04B7/0639—Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0028—Formatting
    • H04L1/0031—Multiple signaling transmission
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • 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
    • H04B7/0469—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account taking special antenna structures, e.g. cross polarized antennas into account

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radio Transmission System (AREA)

Abstract

The present invention is concerned with transmissions from multiple distributed transmission points to a user terminal. The transmit points and the user terminal each have a multiple-input-multiple-output (MIMO) capability. For example, the present invention could be applied to coordinated multi-point (CoMP) transmissions. The user terminal determines a transmission rank and a precoding matrix for each of at least two transmission points of a plurality of transmission points. A joint transmission rank for a joint transmission involving each of the at least two transmission points is determined. Next, the user terminal selects a joint precoding matrix which provides the joint transmission rank and is based on the precoding matrices of respective transmission points. Furthermore, a sub-matrix of the joint precoding matrix is obtained by applying column permutations to one of the transmission point precoding matrices (see the third equation on page 20). The user terminals transmit channel state information (CSI) including a description of the selected joint precoding matrix.
GB1211156.3A 2011-09-27 2011-09-27 Method and apparatus for multiple input multiple output distributed antenna arrays Active GB2495168B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1211156.3A GB2495168B (en) 2011-09-27 2011-09-27 Method and apparatus for multiple input multiple output distributed antenna arrays

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1211156.3A GB2495168B (en) 2011-09-27 2011-09-27 Method and apparatus for multiple input multiple output distributed antenna arrays

Publications (3)

Publication Number Publication Date
GB201211156D0 GB201211156D0 (en) 2012-08-08
GB2495168A GB2495168A (en) 2013-04-03
GB2495168B true GB2495168B (en) 2013-10-16

Family

ID=46704098

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1211156.3A Active GB2495168B (en) 2011-09-27 2011-09-27 Method and apparatus for multiple input multiple output distributed antenna arrays

Country Status (1)

Country Link
GB (1) GB2495168B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019023828A1 (en) * 2017-07-31 2019-02-07 华为技术有限公司 Jt precoding weight matrix generation method, device, and system
GB2627266A (en) * 2023-02-17 2024-08-21 Nokia Technologies Oy Discovery of a rank of a communication channel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010105415A1 (en) * 2009-03-17 2010-09-23 Huawei Technologies Co., Ltd. Method for generating a codebook
US20100273495A1 (en) * 2009-01-06 2010-10-28 Texas Instruments Incorporated Predecoding for Joint Processing Coordinated Multi-Point Transmission

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100273495A1 (en) * 2009-01-06 2010-10-28 Texas Instruments Incorporated Predecoding for Joint Processing Coordinated Multi-Point Transmission
WO2010105415A1 (en) * 2009-03-17 2010-09-23 Huawei Technologies Co., Ltd. Method for generating a codebook

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Hitachi, "An issue on multi-cell antenna allocation for joint approaches", 3GPP Draft R1-090598, 4 Feb 2009. *

Also Published As

Publication number Publication date
GB2495168A (en) 2013-04-03
GB201211156D0 (en) 2012-08-08

Similar Documents

Publication Publication Date Title
EP2556638A4 (en) Codebook design and structure for multi-granular feedback
MX2015016226A (en) Method, user equipment and base station for transmitting four-antenna pre-coding matrix.
WO2014126992A3 (en) 4tx codebook enhancement in lte
JP5540147B2 (en) Method and apparatus for acquiring channel information
WO2013169666A3 (en) Rank-specific feedback for improved mimo support
WO2012039589A3 (en) Method and apparatus for efficient feedback in a wireless communication system that supports multiple antennas
WO2011126341A3 (en) Signal transmission method and apparatus using codebook in wireless communication system supporting multiple antennas
WO2012046988A3 (en) Method and apparatus for transmitting and receiving codebook subset restriction bitmap
WO2010056008A3 (en) Signal transmission method and signal receiving method in a multi-input multi-output system
EP3394988A4 (en) Feedback of sparse correlation matrix for multiple-input and multiple-output (mimo) wireless networks
WO2011122830A3 (en) Method and apparatus for efficient feedback in a wireless communication system supporting multiple antennas
MY193065A (en) Codebook subset restriction for full-dimension mimo
EA201390045A1 (en) TRANSMISSION METHOD, TRANSMISSION DEVICE, RECEPTION METHOD AND RECEPTION DEVICE
WO2011099765A3 (en) Method for transmitting control information and apparatus for the same
WO2011087280A3 (en) Method for generating preamble in multi-user multi-input multi-output system, and data transmission apparatus and user terminal using the method
WO2011163588A3 (en) Structured mimo codebook
WO2012002767A3 (en) Method and apparatus for transmitting signals using codebooks in a wireless communication system that supports multiple antennas
WO2011129583A3 (en) Method and device for efficient feedback in wireless communication system supporting multiple antennas
WO2012060550A3 (en) Method and apparatus for efficient feedback in wireless communication system supporting multiple antennas
WO2012021031A3 (en) Methods and apparatus for uplink control transmit diversity
WO2009023700A3 (en) Method and apparatus for creating a multi-user mimo codebook using a single user mimo codebook
RU2012147189A (en) MIMO PRELIMINARY CODER STRUCTURE
WO2008104907A3 (en) Method and apparatus for selecting pre-coding vectors
JP2006081162A5 (en)
GB201119092D0 (en) Processing system, method and computer program for multipoint communications

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140102 AND 20140108

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20140109 AND 20140115

732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)

Free format text: REGISTERED BETWEEN 20160211 AND 20160217