Multi-user pre-coding

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12218720
APP PUB NO 20230125744A1
SERIAL NO

17914167

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Abstract

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A pre-coding method is disclosed of a multi-user, multi-antenna transmitter configured for transmission of respective signals to a plurality of users. The method comprises determining (for each pair of users of the plurality) a spatial correlation value for the pair of users, sorting the plurality of users into a first group and a second group based on the spatial correlation values, generating the respective signals for transmission to the users of the first group by application of linear pre-coding, and generating the respective signals for transmission to the users of the second group by application of non-linear precoding. For example, a particular user may be sorted into the first group when all pairs comprising the particular user have a spatial correlation value that falls below a first correlation threshold value, and the particular user may be sorted into the second group when at least one pair comprising the particular user has a spatial correlation value that falls on or above the first correlation threshold value. Corresponding apparatus, transmitter, base station and computer program product are also disclosed.

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Patent Owner(s)

  • TELEFONAKTIEBOLAGET LM ERICSSON ( PUBL)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Alvarado, Alex Den Bosch, NL 5 4
Farsaei, Amirashkan Eindhoven, NL 5 2
Gustavsson, Ulf Gothenburg, SE 40 1611
Willems, Frans M J Geldrop, NL 5 2

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