METHOD FOR UPLINK MULTI-USER COOPERATION COMMUNICATION

摘要

The present invention discloses a method for uplink multi-user cooperation communication, and is applied in a system at least including a first source node, a second source node and a target node, wherein there is a direct transmission link between the first or the second source node and the target node. The method includes the following steps: the first source node transmits signals to the target node and the second source node; the second source node is changed to a relay node of the first source node, and forwards the signals to the target node; according to the signals directly transmitted from the first source node and the signals forwarded from the second source node, the target node obtains its reception Signal Noise Ratio (SNR) by using a maximal ratio combining mode, and sets a distributed precoding strategy according to the reception SNR, and selects, based on the real-time channel condition, the optimal precoding as the precoding vector which is used when the first source node transmits the signals to the target node. The present invention can effectively enhance the capability and throughput of the system, and reduce the block error rate.