Title:
SYSTEM AND METHOD FOR USER EQUIPMENT COOPERATION
Document Type and Number:
WIPO Patent Application WO/2015/035873
Kind Code:
A1
Abstract:
User equipment (UE) cooperation can be improved by relaying partial soft information to target UEs. More specifically, a cooperating UE may relay a subset of log-likelihood ratios (LLRs) to the target UE. The subset of LLRs may correspond to fewer than all resource blocks of the original transmission. This may allow UE cooperation to be effective when the cooperating UE was only able to decode a portion of the original transmission. This may also allow fewer network resources (e. g., bandwidth, etc. ) to be used when the target UE does not need all of the soft information to decode the original transmission. Multiple cooperating UEs can provide different subsets of LLRs, and the subsets may or may not overlap with one another.
Inventors:
CAO YU (CA)
MAAREF AMINE (CA)
BALIGH MOHAMMADHADI (CA)
MA JIANGLEI (CA)
MAAREF AMINE (CA)
BALIGH MOHAMMADHADI (CA)
MA JIANGLEI (CA)
Application Number:
PCT/CN2014/085860
Publication Date:
March 19, 2015
Filing Date:
September 03, 2014
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W8/22; H04L25/06; H04L27/06
Domestic Patent References:
| WO2012115678A1 | 2012-08-30 |
Foreign References:
| CN101854226A | 2010-10-06 | |||
| US20120219097A1 | 2012-08-30 | |||
| US20130051444A1 | 2013-02-28 | |||
| US20100110967A1 | 2010-05-06 |
Other References:
QUALCOMM EUROPE: "DESCRIPTION AND SIMULATIONS OF HIERARCHICAL MO dulation Technique for E-UTRA MBMS Evaluation", 3GPP TSG-RAN WGI #42 R1-050902, 29 August 2005 (2005-08-29), LONDON, UK, XP050100522
FUJITSU: "GROUPED AND ENCODED PACKET BASED HARQ FOR LTE- Advanced", 3GPP TSG-RAN1 #55 R1-084295, 10 November 2008 (2008-11-10), PRAGUE, CZECH REPUBLIC, XP050317939
NEC GROUP: "MU-MIMO: DEMODULATION AT THE MOBILE STATION", 3GPP TSG-RANI #56 R1-090649, 9 February 2009 (2009-02-09), ATHENS, GREECE, XP050318526
FUJITSU: "GROUPED AND ENCODED PACKET BASED HARQ FOR LTE- Advanced", 3GPP TSG-RAN1 #55 R1-084295, 10 November 2008 (2008-11-10), PRAGUE, CZECH REPUBLIC, XP050317939
NEC GROUP: "MU-MIMO: DEMODULATION AT THE MOBILE STATION", 3GPP TSG-RANI #56 R1-090649, 9 February 2009 (2009-02-09), ATHENS, GREECE, XP050318526
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