| 主权项 |
1. A method for reducing interference in wireless communications, the method comprising:
at least one of
i) determining, at a first communication device, a beamforming matrix based on an estimate of a multiple input, multiple output (MIMO) communication channel between the first communication device and a second communication device, wherein the first communication device and the second communication device belong to a first wireless network, wherein the beamforming matrix is determined without using channel estimate information corresponding to a communication channel to any third communication device in a second wireless network, and wherein the second wireless network omits the first communication device, orii) receiving, at the first communication device, the beamforming matrix, the beamforming matrix having been generated a) based on the estimate of the MIMO communication channel and b) without using channel estimate information corresponding to the communication channel to any third communication device in the second wireless network; the method further comprising:
determining, at the first communication device, at least one of i) whether a distance between the first communication device and one of the third communication devices is less than a distance threshold and ii) whether transmissions from the second wireless network meet a signal strength criteria;in response to determining at least one of i) that the distance is less than a distance threshold and ii) that the transmissions from the second wireless network meet the signal strength criteria, determining that the first communication device is near to the second wireless network and that transmissions from the first communication device in the first wireless network are producing interference to the second wireless network;determining, at the first communication device, whether the first communication device receives from any third communication device in the second wireless network via a communication link a request for the first communication device to reduce interference to the second wireless network, wherein the request is in response to the produced interference to the second wireless network;in response to determining that transmissions from the first communication device in the first wireless network are producing interference to the second wireless network, reducing, by using the beamforming matrix at the first communication device, the interference to the second wireless network, wherein the interference is generated by the first communication device transmitting to the second communication device via the MIMO communication channel;coordinating, at the first communication device, with an access point in the second wireless network so that the first communication device uses a first beamforming matrix for a first downlink transmission when the access point is scheduled to perform a second downlink transmission to a client communication device in the second wireless network; andcoordinating, at the first communication device, with the access point in the second wireless network so that the first communication device schedules one or more first uplink transmissions in the first wireless network at times different than when the access point schedules one or more second uplink transmissions in the second wireless network; wherein
the one or more first uplink transmissions are one or more transmissions from the second communication device to the first communication device, andthe one or more second uplink transmissions are one or more transmissions from the fourth communication device or from one or more other client communication devices in the second wireless network to the access point. |
