Title:
METHOD AND APPARATUS FOR PILOT POWER ALLOCATION IN A MULTI ANTENNA COMMUNICATION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2013/115706
Kind Code:
A3
Abstract:
The embodiments herein relate to a method in abase station (301) for determining adjustment of common pilot power in a four-way transmit antenna, 4Tx, communications system (300). The base station (301) comprises a first transmit antenna (1201), a second transmit antenna (1202), a third transmit antenna (1203) and a fourth transmit antenna (1204). The base station (301) identifies a set of scheduled user equipments (310) in the communications system (300). The base station (301) determines that the common pilot power should be adjusted based on a criterion associated with the set of scheduled user equipments (310).
Inventors:
GOERANSSON BO (SE)
LARSSON ERIK (SE)
MIAO QINGYU (CN)
NAMMI SAIRAMESH (SE)
LARSSON ERIK (SE)
MIAO QINGYU (CN)
NAMMI SAIRAMESH (SE)
Application Number:
PCT/SE2013/050047
Publication Date:
October 10, 2013
Filing Date:
January 22, 2013
Export Citation:
Assignee:
ERICSSON TELEFON AB L M (SE)
International Classes:
H04W52/34; H04W72/12
Foreign References:
| US20040166886A1 | 2004-08-26 |
Other References:
"Initial discussion on pilot design for 4-branch MIMO", 3GPP TSG RAN WG1 MEETING #66BIS, 10 October 2011 (2011-10-10), ZHUHAI, P.R. CHINA, XP050538473
"Pilot design for DL 4- branch MIMO", 3GPP TSG-RAN WG1 MEETING #66BI, 10 October 2011 (2011-10-10), ZHUHAI, CHINA, XP050538179
"Impact of Common Pilot Gating on the 4 branch MIMO Link Performance", 3GPP TSG RAN WG1 MEETING #68, 6 February 2012 (2012-02-06), DRESDEN, GERMANY, XP050563306
"Four branch MIMO Performance with Common Pilot Gating", 3GPP TSG-RAN WG1 #68BIS, 26 March 2012 (2012-03-26), JEJU, SOUTH KOREA, XP050600007
"Remaining details of pilot design for 4-branch HSDPA", 3GPP TSG-RAN WG1 MEETING #7, 13 August 2012 (2012-08-13), QINGDAO, CHINA, XP050661019
"Overall Summary of Pilot Design Schemes in Four branch MIMO System", 3GPP TSG-RAN WG1 #69, 21 May 2012 (2012-05-21), PRAGUE, CZECH REPUBLIC, XP050661019
"Pilot design for DL 4- branch MIMO", 3GPP TSG-RAN WG1 MEETING #66BI, 10 October 2011 (2011-10-10), ZHUHAI, CHINA, XP050538179
"Impact of Common Pilot Gating on the 4 branch MIMO Link Performance", 3GPP TSG RAN WG1 MEETING #68, 6 February 2012 (2012-02-06), DRESDEN, GERMANY, XP050563306
"Four branch MIMO Performance with Common Pilot Gating", 3GPP TSG-RAN WG1 #68BIS, 26 March 2012 (2012-03-26), JEJU, SOUTH KOREA, XP050600007
"Remaining details of pilot design for 4-branch HSDPA", 3GPP TSG-RAN WG1 MEETING #7, 13 August 2012 (2012-08-13), QINGDAO, CHINA, XP050661019
"Overall Summary of Pilot Design Schemes in Four branch MIMO System", 3GPP TSG-RAN WG1 #69, 21 May 2012 (2012-05-21), PRAGUE, CZECH REPUBLIC, XP050661019
Attorney, Agent or Firm:
VALEA AB (Göteborg, SE)
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