Title:
A METHOD AND DEVICE FOR OBTAINING ENHANCED CHANNEL QUALITY INDICATOR
Document Type and Number:
WIPO Patent Application WO/2012/020312
Kind Code:
A3
Abstract:
The present invention provides a method and device of obtaining enhanced CQI (Channel Quality Indicator), the present invention performs CQI calculation utilizing demodulated reference signal. In addition, besides performing modulation and coding scheme utilizing CQI based on the demodulated reference signal, the calibration for Co MP transmission can also be performed utilizing CQI based on demodulated signal. The calibration for Co MP transmission can also be performed utilizing CQI or other implicit feedback, for example Acknowledge and Not Acknowledge.
Inventors:
ZHANG XIAOBO (CN)
ZHAO YAN (CN)
YOU MINGLI (CN)
ZHAO YAN (CN)
YOU MINGLI (CN)
Application Number:
PCT/IB2011/002072
Publication Date:
June 28, 2012
Filing Date:
July 29, 2011
Export Citation:
Assignee:
ALCATEL LUCENT (FR)
ZHANG XIAOBO (CN)
ZHAO YAN (CN)
YOU MINGLI (CN)
ZHANG XIAOBO (CN)
ZHAO YAN (CN)
YOU MINGLI (CN)
International Classes:
H04L1/06; H04B7/02; H04B7/06; H04L1/00; H04L1/20; H04L5/00; H04L25/02
Domestic Patent References:
| WO2003036817A1 | 2003-05-01 | |||
| WO2011013986A2 | 2011-02-03 |
Other References:
PANASONIC: "Possibility of UE side ICI cancellation in Hetnet", 3GPP DRAFT; R1-103778, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Dresden, Germany; 20100628, 22 June 2010 (2010-06-22), XP050449206
PANTECH: "DMRS Indicator of DL signalling for Non-transparent MU-MIMO", 3GPP DRAFT; R1-103614, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Dresden, Germany; 20100628, 22 June 2010 (2010-06-22), XP050449075
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Antenna calibration for TDD CoMP Scenarios 3 and 4", 3GPP DRAFT; R1-112418 ANTENNA CALIBRATION FOR TDD COMP, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Athens, Greece; 20110822, 18 August 2011 (2011-08-18), XP050537813
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Antenna Array Calibration for TDD CoMP", 3GPP DRAFT; R1-100427, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Valencia, Spain; 20100118, 12 January 2010 (2010-01-12), XP050418075
SAMSUNG: "Antenna calibrations for TDD CoMP", 3GPP DRAFT; R1-101177 TDD COMP, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. San Francisco, USA; 20100222, 16 February 2010 (2010-02-16), XP050418711
FAN HUANG ET AL: "Performance Analysis of Antenna Calibration in Coordinated Multi-Point Transmission System", 2010 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC 2010-SPRING) - 16-19 MAY 2010 - TAIPEI, TAIWAN, IEEE, US, 16 May 2010 (2010-05-16), pages 1 - 5, XP031696137, ISBN: 978-1-4244-2518-1
PANTECH: "DMRS Indicator of DL signalling for Non-transparent MU-MIMO", 3GPP DRAFT; R1-103614, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Dresden, Germany; 20100628, 22 June 2010 (2010-06-22), XP050449075
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Antenna calibration for TDD CoMP Scenarios 3 and 4", 3GPP DRAFT; R1-112418 ANTENNA CALIBRATION FOR TDD COMP, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Athens, Greece; 20110822, 18 August 2011 (2011-08-18), XP050537813
ALCATEL-LUCENT SHANGHAI BELL ET AL: "Antenna Array Calibration for TDD CoMP", 3GPP DRAFT; R1-100427, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Valencia, Spain; 20100118, 12 January 2010 (2010-01-12), XP050418075
SAMSUNG: "Antenna calibrations for TDD CoMP", 3GPP DRAFT; R1-101177 TDD COMP, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. San Francisco, USA; 20100222, 16 February 2010 (2010-02-16), XP050418711
FAN HUANG ET AL: "Performance Analysis of Antenna Calibration in Coordinated Multi-Point Transmission System", 2010 IEEE VEHICULAR TECHNOLOGY CONFERENCE (VTC 2010-SPRING) - 16-19 MAY 2010 - TAIPEI, TAIWAN, IEEE, US, 16 May 2010 (2010-05-16), pages 1 - 5, XP031696137, ISBN: 978-1-4244-2518-1
Attorney, Agent or Firm:
WANG, Maohua (20th Floor East Tower,World Financial Centre,1 Dongsanhuan Zhonglu, Chaoyang District Beijing 0, CN)
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