Methods and devices for MIMO transmission

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United States of America Patent

PATENT NO 9794005
APP PUB NO 20150333845A1
SERIAL NO

14653058

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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Methods and devices of controlling impact from interference from transmission to a 4-branch Multiple Input Multiple Output, MIMO, enabled User Equipment, UE, in a cellular radio system where legacy non 4-branch MIMO UEs co-exist are provided. The control involves determining an estimated Channel Quality Indicator, CQI, delay, and based on the estimated CQI delay determining if there exists a CQI under-estimation or CQI over-estimation. The control of the impact from high rank interference from transmission to the 4-branch MIMO enabled UE is based on a determined CQI under-estimation or CQI over-estimation.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12205

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Patent Info (Count) # Cites Year
 
QUALCOMM INCORPORATED (1)
2008/0080,641 CODEWORD PERMUTATION AND REDUCED FEEDBACK FOR GROUPED ANTENNAS 26 2007
 
SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION (1)
2005/0254,461 Apparatus and method for data transmission/reception using channel state information in wireless communication system 7 2005
 
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL) (1)
* 2009/0196,237 TRANSMISSION-COMPENSATED RADIO CHANNEL QUALITY 9 2008
 
TEXAS INSTRUMENTS INCORPORATED (1)
* 2009/0154,588 CHANNEL QUALITY REPORT PROCESSES, CIRCUITS AND SYSTEMS 59 2008
 
NOKIA CORPORATION (1)
* 2006/0252,436 Interference control method, network element, device, computer program product and computer program distribution medium 11 2005
* Cited By Examiner

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