Determination of channel condition indication

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United States of America Patent

PATENT NO 9793945
SERIAL NO

15315306

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Abstract

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A method is provided of a wireless communication device operating in connection with a cellular communication system providing a serving cell and one or more interfering cells. A signal is received comprising symbols of the serving cell transmitted in a downlink channel and symbols of the one or more interfering cells and a first function of a signal-to-interference ratio of the received signal is calculated. One or more of the interfering cells are selected as dominant interfering cells based on a respective average power of reference symbols of the one or more interfering cells in the received signal, an average power of demodulated symbols of the serving cell in the received signal and a respective average power of demodulated symbols of each of the dominant interfering cells in the received signal are determined. A metric value is calculated based on the average power of demodulated symbols of the serving cell and on the respective average power of demodulated symbols of each of the dominant interfering cells, a channel condition indication is determined based on the metric value and the first function of the signal-to-interference ratio of the received signal, and the channel condition indication is transmitted to the cellular communication system, thereby providing downlink channel condition information to a network node. A method of creating a look-up table for mapping the first function and the metric value to the channel condition indication is also disclosed along with computer program products, arrangements and wireless communication devices corresponding to the methods.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)STOCKHOLM12611

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bergman, Göran Lund, SE 8 19
Jonsson, Elias Malmö, SE 67 506
Kuppusamy, Vijaykumar Bangalore, IN 3 0
Murata, Yoshitaka Tokyo, JP 32 482

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