| 主权项 |
1. A wireless communication network comprising:
a base station having a plurality of medium access control (MAC) and physical (PHY) layer stacks; and a spectrum manager adapted to make restricted frequency channels, not occupied by a primary user, available to secondary users by assigning one available restricted frequency channel or a set of contiguous available restricted frequency channels among at least one unavailable frequency channel to each of the respective stacks, and each of the respective stacks being assigned for use by a secondary user; wherein the restricted frequency channels are channels dedicated for use by primary users; wherein when the number of available channels is smaller than the number of stacks, the spectrum manager is configured to allocate the available restricted frequency channel or the set of contiguous available restricted frequency channels to several stacks for specified time interval such that the stacks share the available restricted frequency channel or the set of contiguous available restricted frequency channels in a time division manner. |
