System and method for optimizing channel characteristics when initializing links between cognitive radios in a shared spectrum environment

摘要

Systems and methods to facilitate acquisition of specific operating parameters by a spoke radio device via a hub radio device while the hub radio device operates using specific operating parameters and the spoke radio device operates using generic operating parameters. The spoke radio device may acquire the generic operating parameters from a beacon broadcast by the hub radio device. If a link between a hub radio device and a spoke radio device cannot be satisfactorily established and maintained using the specific and generic operating parameters, respectively, then the hub radio device may use alternative channels and/or reduce its operational area to attempt to converge specific and generic transmit power levels for improved link establishment.

主权项

1. A hub radio device through which a spoke radio device acquires wireless spectrum access credentials from a server, comprising:
a wireless communications interface over which wireless communications are carried out; and a control circuit that executes logical instructions to:
receive specific and generic channel authorizations from the server and select a channel from the specific channel authorization for use in wireless communications;determine if a first communication link between the spoke radio device and the hub radio device over the wireless communications interface fails in terms of link establishment or maintenance, during attempted establishment or maintenance of the first communication link the hub radio device uses a transmit power allowed under the specific channel authorization and the spoke radio device uses a transmit power allowed under the generic channel authorization;in response to the determination of the failure of the first communication link, reduce a coverage area of the hub radio device, reacquire the specific and generic channel authorizations issued to the hub radio device by the server for the reduced coverage area, use a channel and transmit power allowed under the reacquired specific channel authorization and broadcast corresponding reacquired generic channel authorization in a beacon; andestablishing a second communication link between the spoke radio device and the hub radio device for which the hub radio device uses a channel and transmit power allowed under the reacquired specific channel authorization and the spoke radio device uses a transmit power allowed under the reacquired generic channel authorization, and the spoke radio device obtains the wireless spectrum access for the spoke radio device from the server via the second communication link.