Filter-based guardband determination and subcarrier selection

摘要

Techniques for determining a guardband for a frequency channel based at least in part on a roll-off of a filter or a type of a filter are described herein. The filter may be a filter of a base station and the frequency channel may be used for transmissions from the base station to a mobile device. Alternatively, the filter may be a filter of a mobile device and the frequency channel may be used for transmissions from the mobile device to the base station. Further, because different filters of different mobile devices may have different roll-offs or types of filters, different guardbands may be determined for different mobile devices communicating over a same frequency channel. Upon determining the guardband, a base station may select a subcarrier based at least in part on the determined guardband.

主权项

1. A base station comprising:
one or more processors; a radio communicatively coupled to the one or more processors, the radio including a filter associated with at least one of a filter type and a roll-off; a guardband determination module configured to be operated by the one or more processors to perform operations including:
determining the roll-off of the filter of the base station or the filter type of the filter of the base station;determining a first guardband for a first frequency channel based at least in part on the roll-off of the filter of the base station or the filter type of the filter of the base station;receiving, from a mobile device, an indication of a roll-off of a filter of the mobile device or a type of the filter of the mobile device; anddetermining a second guardband for a second frequency channel based at least in part on the roll-off of the filter of the mobile device or the type of the filter of the mobile device; and a scheduler, wherein the guardband determination module is a component of the scheduler, and the scheduler is configured to be operated by the one or more processors to perform operations including:
selecting a first subcarrier for transmissions from the base station to the mobile device based at least in part on the determined first guardband for the first frequency channel;selecting a second subcarrier for transmissions from the mobile device to the base station based at least in part on the determined second guardband for the second frequency channel; andinstructing the mobile device to utilize the selected second subcarrier.