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US09331765B2 Mixed rank downlink multi-user interference alignment scheme 有权
混合下行链路多用户干扰对齐方案

Mixed rank downlink multi-user interference alignment scheme
Abstract:
A method, system and device are provided for using an indexed list of linearly independent, predetermined vectors Vref={vref1,. . . , vrefM} and channel knowledge H, G from each transmitter to compute and feedback equivalent channel matrix information Hi,jeq to its affiliated transmitter based on the assigned/determined rank of the receiver. With this information, each transmitter selects Li receivers and constructs a transmitted signal by applying a selected precoding matrix to the mixed rank data, thereby eliminating interference to the rest of the receivers in the network.
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