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DISTRIBUTED COORDINATED DOWNLINK PRECODING FOR MULTI-CELL MIMO WIRELESS NETWORK VIRTUALIZATION
DISTRIBUTED COORDINATED DOWNLINK PRECODING FOR MULTI-CELL MIMO WIRELESS NETWORK VIRTUALIZATION
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机译:多单元MIMO无线网络虚拟化的分布式协调下行链路预编码
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摘要
A method and network node for distributed coordinated downlink precoding for multi-cell multiple input multiple output (MIMO) wireless network virtualization are disclosed. According to one aspect, a network node is configured to, in each of a plurality of successive transmission time periods: transmit to each of a plurality of SPs a corresponding set of channel information; receive from each of the plurality of SPs a service demand and a normalized precoding matrix, the normalized precoding matrix being determined by the corresponding SP based on the corresponding set of channel information; allocate a virtual transmit power to each of the plurality of SPs based at least in part on the received service demands and normalized precoding matrices; and determine a downlink precoding matrix to transmit messages to WDs, the downlink precoder matrix being based at least in part on the received service demands and normalized precoding matrices.
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