WO2009031966A3 - Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference - Google Patents

Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference Download PDF

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Publication number
WO2009031966A3
WO2009031966A3 PCT/SE2008/050936 SE2008050936W WO2009031966A3 WO 2009031966 A3 WO2009031966 A3 WO 2009031966A3 SE 2008050936 W SE2008050936 W SE 2008050936W WO 2009031966 A3 WO2009031966 A3 WO 2009031966A3
Authority
WO
WIPO (PCT)
Prior art keywords
interference
link adaptation
temporal variations
reduce temporal
downlink transmissions
Prior art date
Application number
PCT/SE2008/050936
Other languages
French (fr)
Other versions
WO2009031966A2 (en
Inventor
Kambiz Zangi
Leonid Krasny
Dennis Hui
Original Assignee
Telefonaktiebolaget L M Ericsson (Publ)
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 Telefonaktiebolaget L M Ericsson (Publ) filed Critical Telefonaktiebolaget L M Ericsson (Publ)
Priority to NZ583063A priority Critical patent/NZ583063A/en
Priority to RU2010112985/07A priority patent/RU2483451C2/en
Priority to CN2008801059217A priority patent/CN101816147B/en
Priority to JP2010523984A priority patent/JP5236733B2/en
Priority to EP08794161A priority patent/EP2186249A2/en
Publication of WO2009031966A2 publication Critical patent/WO2009031966A2/en
Publication of WO2009031966A3 publication Critical patent/WO2009031966A3/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0078—Timing of allocation
    • H04L5/0082—Timing of allocation at predetermined intervals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • 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
    • H04L25/00—Baseband systems
    • H04L25/02—Details ; arrangements for supplying electrical power along data transmission lines
    • H04L25/03—Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
    • H04L25/03006—Arrangements for removing intersymbol interference
    • H04L25/03343—Arrangements at the transmitter end
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18—Negotiating wireless communication parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Abstract

According to one or more method and apparatus embodiments taught herein, network base stations (10) reduce temporal variations in the interference perceived by mobile stations (12) operating within the network (60) by slowing down the rate at which they change or otherwise update the linear precoding settings applied to their transmitted Orthogonal Frequency Division Multiplex (OFDM) signals in comparison to the rate at which the base stations (10) perform link adaptation. That is, the precoding-related component of measured interference (e.g., other-cell interference) at the mobile stations (12) is made quasi-stationary with respect to channel quality reporting and link adaptation intervals by fixing the precoding settings used by each base station (10) over time intervals substantially longer than the channel reporting/link adaptation intervals.
PCT/SE2008/050936 2007-09-06 2008-08-20 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference WO2009031966A2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NZ583063A NZ583063A (en) 2007-09-06 2008-08-20 Reducing time offsets in wireless communications by slowing updating of precoding settings
RU2010112985/07A RU2483451C2 (en) 2007-09-06 2008-08-20 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference
CN2008801059217A CN101816147B (en) 2007-09-06 2008-08-20 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference
JP2010523984A JP5236733B2 (en) 2007-09-06 2008-08-20 Linear precoding method and apparatus for downlink transmission for reducing time variation of interference
EP08794161A EP2186249A2 (en) 2007-09-06 2008-08-20 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/850,781 2007-09-06
US11/850,781 US8036099B2 (en) 2007-09-06 2007-09-06 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference

Publications (2)

Publication Number Publication Date
WO2009031966A2 WO2009031966A2 (en) 2009-03-12
WO2009031966A3 true WO2009031966A3 (en) 2009-11-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2008/050936 WO2009031966A2 (en) 2007-09-06 2008-08-20 Method and apparatus for linearly precoding downlink transmissions to reduce temporal variations in interference

Country Status (7)

Country Link
US (1) US8036099B2 (en)
EP (1) EP2186249A2 (en)
JP (1) JP5236733B2 (en)
CN (1) CN101816147B (en)
NZ (1) NZ583063A (en)
RU (1) RU2483451C2 (en)
WO (1) WO2009031966A2 (en)

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JP6378192B2 (en) 2012-11-13 2018-08-22 エルジー エレクトロニクス インコーポレイティド Data transmission method and apparatus, and data transmission method and apparatus
US11189917B2 (en) 2014-04-16 2021-11-30 Rearden, Llc Systems and methods for distributing radioheads
US11050468B2 (en) 2014-04-16 2021-06-29 Rearden, Llc Systems and methods for mitigating interference within actively used spectrum
US10194346B2 (en) 2012-11-26 2019-01-29 Rearden, Llc Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology
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Also Published As

Publication number Publication date
JP2010538577A (en) 2010-12-09
WO2009031966A2 (en) 2009-03-12
RU2483451C2 (en) 2013-05-27
JP5236733B2 (en) 2013-07-17
RU2010112985A (en) 2011-10-20
CN101816147A (en) 2010-08-25
EP2186249A2 (en) 2010-05-19
NZ583063A (en) 2012-11-30
US20090069054A1 (en) 2009-03-12
US8036099B2 (en) 2011-10-11
CN101816147B (en) 2013-06-12

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