QoS aware multi radio access point for operation in TV whitespaces

摘要

QoS aware multi radio access point for operation in TV whitespaces is disclosed. The present invention relates to operation of access points and, particularly, to operation of access points in TV whitespaces. The AP is configured to intelligently choose the radios, determine available whitespaces in the spectrum and allocate radios to the available whitespaces in the spectrum. The method determines clients that need to be serviced by the AP and assigns each client associated with AP to one of the radios. In addition, the method also takes care of QoS requirements for different services and hence every service is addressed to satisfy its QoS requirements. The method ensures that there is maximum utilization of available whitespace spectrum by accounting for the spectrum specific characteristics. The method considers bands for operation are spread across the spectrum and allocates the clients based on the availability of bands throughout the spectrum.

主权项

1. An access point for allocation of bands in television whitespace spectrum to clients, said access point comprising:
a processor, and a memory storing instructions that, when executed, cause the access point to: determine the number K of radios for said access point that can be selected for operation;
choose K frequency bands from a set of M bands of available television whitespace spectrum that correspond to K said radios, wherein M>K; andassign said clients to said radios by ensuring there is weighted proportional fair data rate allocation for said radios, wherein a utility function used for said weighted proportional fair data rate allocation is maximized;obtain input from a weighted proportional fair medium access control module; andinvoke said television whitespace selection and client assignment engine to change said client assignment if required.