Patent ID: 7440728
Filing Date: 2008-10-21
Classification: H04W

Abstract:
1. In a peer-to-peer network, a method of mitigating communication interference in an unlicensed wireless band used to exchange content data between two peer devices by using a control channel to exchange control data between the two peer devices in order to dynamically vary the unlicensed wireless communication, the method comprising: establishing a peer-to-peer communication between two devices; transmitting between the two devices content data on a main data channel in the unlicensed band; providing a control channel, different from the main channel, for transferring control data directly between the two devices such that control data sent from one of the two devices is specifically directed at another; exchanging control data directly between the two devices on the control channel, the control data including interference-related information for managing the transmission of the content data on the main data channel, and wherein the exchange includes both a transmission and reception of the control data by each of the two devices and directed at each other, which allows each of the two devices to know the radio frequency environment of each other for the peer-to-peer communication between the two devices on the main data channel in the unlicensed band; and varying at least one parameter that performs an action to mitigate interference-related communication problems on the main data channel based on the exchange of the control data.