The embodiment of the present invention discloses a downlink transmission method and network device for solving the problem that TM4 of the existing MIMO system is not suitable for downlink transmission of MU. It includes: network equipment receives N precoding matrices indicating PMI, N PMI are determined by N user equipment UE according to the first weighted pilot signal transmitted by network equipment, the first weighted pilot signal is obtained by network equipment weighting the first pilot signal according to the first pilot weighted matrix, and network equipment determines N main characteristic directions of reconstructed channel according to N PMI and the first pilot weighted matrix. Quantity; Network equipment determines M scheduled UEs from N UEs, and determines the second pilot weighting matrix based on the reconstructed channel principal eigenvector of each UE in M scheduled UEs; Network equipment transmits the second weighted pilot signal to N UEs, where the second weighted pilot signal is obtained by network equipment weighting the second pilot signal according to the second pilot weighting matrix.
【技术实现步骤摘要】
【国外来华专利技术】PCT国内申请，说明书已公开。
【技术保护点】
PCT国内申请，权利要求书已公开。
【技术特征摘要】
【国外来华专利技术】PCT国内申请，...
【专利技术属性】
技术研发人员：杨非，陈凯，王智鹰，
申请(专利权)人：华为技术有限公司，
类型：发明
国别省市：广东,44
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