Patent ID: 8885758

Claim:
A data stream processing method, comprising: using a precoding parameter to perform precoding processing on an l th to-be-sent data stream of a k th transmitting device, wherein the l th to-be-sent data stream comprises a lattice point data stream mapped to a lattice grid and a disturbing data stream that disturbs the lattice point data stream by using a disturbance parameter; and sending the precoded l th to-be-sent data stream to a k th receiving device, wherein both l and k are positive integers, wherein the method further comprises: obtaining the precoding parameter, an interference alignment quantization parameter, a first equalization parameter, a second equalization parameter and an interference parameter that correspond to the l th to-be-sent data stream; obtaining a disturbance parameter and an interference alignment quantization parameter that correspond to all to-be-sent data streams of all transmitting devices; obtaining an aggregate interference alignment quantization parameter according to the disturbance parameter and the interference alignment quantization parameter that correspond to all the to-be-sent data streams of all the transmitting devices; and sending the first equalization parameter, the aggregate interference alignment quantization parameter, the second equalization parameter and the interference parameter to the k th receiving device.