METHOD AND APPARATUS FOR SHORT-TERM FEEDBACK IN MULTI-INPUT MULTI-OUTPUT COMMUNICATIONS

    公开(公告)号:EP3332488A1

    公开(公告)日:2018-06-13

    申请号:EP16754542.5

    申请日:2016-07-12

    申请人: Alcatel Lucent

    IPC分类号: H04B7/04 H04B7/06

    摘要: Embodiments of the present disclosure provide a method and apparatus for multi-input multi-output MIMO communications in a wireless communication network. The method comprises: receiving, from a device, long-term precoding information for the MIMO communication, the long-term precoding information indicating a first group of beams for a first antenna polarization, and a second group of beams for a second antenna polarization (S201); receiving, from the device, short-term precoding information for use in the MIMO communication, the short-term precoding information indicating beams selected respectively from the first group of beams and the second group of beams for different antenna polarizations (S202); constructing a precoding matrix for the MIMO communication according to the long-term precoding information and short-term precoding information (S203); and transmitting data encoded according to the precoding matrix to the device (S204). Embodiments of the present disclosure further provide a method in a receiving side of MIMO, and a corresponding apparatus.