Patent ID: 8731095
Filing Date: 2014-05-20
Classification: H04B,H04J

Abstract:
1. A method of sending data in a wireless communication system, the wireless communication system comprising a first transmitter in communication with a first receiver and a second transmitter in communication with a second receiver, the first transmitter transmitting first payload data to the first receiver, the first payload data comprising first private data and first coordinated data, the second transmitter transmitting second payload data to the second receiver, the second payload data comprising second private data and second coordinated data, the method comprising: sending, by the first transmitter, the first coordinated data to the second transmitter; receiving, by the first transmitter, the second coordinated data from the second transmitter; precoding, by the first transmitter, the first private data by using a first precoding matrix to obtain precoded payload data; precoding, by the first transmitter, a combination of the first coordinated data and the second coordinated data by using a second precoding matrix to obtain precoded coordinated data; and transmitting, by the first transmitter, the precoded payload data and the precoded coordinated data to the first receiver, wherein the precoded coordinated data is designated for interference cancellation at the first receiver caused by transmission of the second payload data from the second transmitter.