CHANNEL SELECTION METRICS IN SHARED SPECTRUM

摘要

Techniques for channel selection and related operations in a shared spectrum environment are disclosed. In one example, a channel selector or the like may be used to select one of a number of available channels as an operating channel based on a comparison of cost functions for each of the available channels, with the cost functions being based on separate utility and penalty metrics. In another example, a channel scanner or the like may be used to trigger a channel scan in response to a channel quality metric indicating poor service for a threshold number or proportion of access terminals. In another example, an operating mode controller may be used to trigger a Time Division Multiplexing (TDM) mode on an operating channel in response to a utilization metric being above a threshold. The TDM mode may cycle operation between activated and deactivated periods in accordance with a TDM communication pattern.

主权项

1. An access point apparatus for managing an operating channel of a first Radio Access Technology (RAT) over a communication medium shared with a second RAT, comprising:
one or more transceivers configured to perform at the access point a scan of available channels and to receive from an access terminal channel measurement reports for the available channels; a penalty metric generator configured to determine a penalty metric for each of the available channels based on the channel scan; a utility metric generator configured to determine a utility metric for each of the available channels based on the channel measurement reports; a cost function generator configured to compute a cost function for each of the available channels based on the respective penalty metrics and the respective utility metrics; and a channel selector configured to select one of the available channels as the operating channel based on a comparison of the cost functions for each of the available channels.