Telefonaktiebolaget Lm Ericsson (publ)

Ang Feng

Yanhui Zhao

Hao Zhang

Georgy Levin

Jichang Liao

Liushuan Zhou

Zhicai Ma

Qingzhi Feng

Ling Zhang

A method of calibrating an antenna array in a wireless network node is disclosed, the wireless network node including a plurality of antenna branches, each of the plurality of antenna branches including a respective antenna element. The method includes repeating operations of transmitting a slice of a fountain coded sequence through the plurality of antenna branches to the respective antenna elements, and for each antenna branch of the plurality of antenna branches, selecting the transmitted slice as a feedback signal through a return path and determining a signal quality of the feedback signal, until the signal quality of the feedback signal for each antenna branch is greater than a threshold level. The method further includes performing antenna calibration based on the feedback signal for each antenna branch. Related devices, computer programs and computer program products are disclosed.

Antenna calibration using fountain coded sequence

Embodiments of the present disclosure provide methods and apparatus for antenna calibration. A method implemented at a network function comprises calibrating an antenna of the network function based on available time-frequency resources. The method further comprises communicating with at least one terminal device via the calibrated antenna.

Method and apparatus for antenna calibration

Various embodiments of the present disclosure provide a method for multi-antenna transmission. The method which may be performed by a communication device comprises determining first correlation information in response to interference to data on a first subset of multiple antenna branches of the communication device. The first correlation information may indicate at least correlation between the data on the first subset of the multiple antenna branches and data on a second subset of the multiple antenna branches which is not affected by interference. The method further comprises correcting the data on the first subset of the multiple antenna branches, based at least in part on the first correlation information.

Method and apparatus for multi-antenna communication

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Stockholm, Sweden

Ang Feng