C-RAN C-RAN TRANSMISSION METHOD WITH FULL-DUPLEX WIRELESS FRONTHAULING

摘要

The present invention relates to a C-RAN signal transmission method including a fronthaul link and an access link, wherein a baseband processing unit (BBU) and at least one remote radio head (RRH) Transmitting and receiving signals through at least one of beamforming, decoding, and compression, wherein the at least one RRH and at least one user equipment (UE) are beamformed through the access link, Transmitting and receiving a signal through one or more processes of the BBU and the one or more RRHs and the BBU, and maximizing a minimum rate of the user equipment (UE) An access link between an inter-front hall link and the at least one RRH and the at least one user equipment (UE) is connected in a wireless full-duplex manner, Step to maximize group is characterized in that it maximizes the minimum data rate (minimum rate) for the user equipment (UE) in consideration of the BBU and the transmit power limit per the RRH. A full-duplex wireless C-RAN can lead to a performance improvement of about 40% in terms of the achievable minimum transmission rate of downlink and uplink UEs compared to conventional half-duplex systems, and the SNR (signal to noise ratio) Can be improved.