Transmission of PMI to terminals operating in SPS-mode.

摘要

The present invention discloses a method and device for realizing a semi-persistent scheduling or semi-persistent scheduling-like service. The method includes: notifying a terminal of its SPS or SPS-like period, so that the terminal sends SPS service or SPS-like service data according to the period and by adopting a transmission mode with a closed loop rank 1; dynamically notifying the terminal of a precoding matrix indicator PMI required for its SPS or SPS-like service to support the transmission mode with the closed loop rank 1, so that the terminal uses a latest received PMI when sending the SPS service or SPS-like service data; and receiving, by a base station and based on the transmission mode with the closed loop rank 1, the SPS service or SPS-like service data sent by the terminal. Through the present invention, the SPS or SPS-like service can support a MIMO transmission mode with the closed loop rank 1.