Methods and apparatuses for using channel state information reference signals

Procédés et appareils pour l'utilisation de signaux de référence d'information sur l'état du canal

Abstract

Dans un système de communication sans fil, un dispositif sans fil est identifié comme étant un dispositif de relais. Une configuration de signal de référence d'information sur l'état du canal (CSI-RS) est sélectionnée de sorte qu'au moins un CSI-RS peut être transmis au dispositif sans fil dans un sous-ensemble de sous-trames attribuées pour relayer des transmissions par liaison terrestre.
In a wireless communication system, a wireless device is identified as being a relay device. A channel state information reference signal (CSI-RS) configuration is selected such that at least one CSI-RS can be transmitted to the wireless device in a subset of subframes assigned to relay backhaul transmissions.

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (1)

    Publication numberPublication dateAssigneeTitle
    US-3259211-AJuly 05, 1966Allis Chalmers Mfg CoRetractable overhead guard

NO-Patent Citations (7)

    Title
    ETRI: "Reference signals for eNB-relay backhaul link", 3GPP DRAFT; R1-094399 BACKHAUL DL RS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Miyazaki; 20091012, 12 October 2009 (2009-10-12), XP050388834
    LG ELECTRONICS: "Intercell muting for CSI-RS", 3GPP DRAFT; R1-102420 INTERCELL-CSIRS-MUTING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Beijing, china; 20100412, 9 April 2010 (2010-04-09), XP050419750
    NOKIA ET AL: "Achievable CQI measurement accuracy over CSI-RS", 3GPP DRAFT; R1-101900, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Beijing, china; 20100412, 7 April 2010 (2010-04-07), XP050419674
    NOKIA SIEMENS NETWORKS ET AL: "Control Channel for Relay Backhaul link", 3GPP DRAFT; R1-091763_CONTROL_RELAYS_BACKHAUL, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. San Francisco, USA; 20090428, 28 April 2009 (2009-04-28), XP050339287
    NTT DOCOMO: "DL RS Design for LTE-Advanced", 3GPP DRAFT; R1-091483 DL RS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, no. Seoul, Korea; 20090318, 18 March 2009 (2009-03-18), XP050339046
    QUALCOMM INC: "Benefits of Muting for Enhanced CSI Estimation", 3GPP DRAFT; R1-102332 BENEFITS OF MUTING, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Beijing, china; 20100412, 7 April 2010 (2010-04-07), XP050419699
    TEXAS INSTRUMENTS: "PDSCH Muting: N-MSE for Inter-cell CSI Estimation", 3GPP DRAFT; R1-102099 TI NMSE FOR INTER-CELL CSI ESTIMATION, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Beijing, china; 20100412, 9 April 2010 (2010-04-09), XP050419746

Cited By (10)

    Publication numberPublication dateAssigneeTitle
    CN-103684676-AMarch 26, 2014中兴通讯股份有限公司天线端口位置关系的通知和确定方法、系统及装置
    CN-104662954-AMay 27, 2015株式会社Ntt都科摩无线通信系统、无线通信方法、用户终端以及无线基站
    JP-2013146024-AJuly 25, 2013Kddi Corp, Kddi株式会社無線リソース割当装置、及び無線リソース割当プログラム
    JP-2014204306-AOctober 27, 2014株式会社Nttドコモ, Ntt Docomo Inc無線基地局、ユーザ端末及び無線通信方法
    JP-2015510329-AApril 02, 2015日本電気株式会社無線通信システムおよび方法
    US-9379827-B2June 28, 2016Zte CorporationMethod, system, and apparatus for notifying and determining antenna port position relationship
    US-9544793-B2January 10, 2017Nec CorporationRadio communication system and method
    WO-2013093171-A1June 27, 2013Nokia Corporation, Nokia Siemens Networks OyRetour d'informations d'un état de canal basé sur un premier signal de référence et un second signal de référence combinés
    WO-2014048209-A1April 03, 2014中兴通讯股份有限公司天线端口位置关系的通知和确定方法、系统及装置
    WO-2014162929-A1October 09, 2014株式会社Nttドコモ無線基地局、ユーザ端末及び無線通信方法