Super-frame Structure for Dynamic Spectrum Sharing

The patent segments the spectrum sharing process into distinct super-frame structures with specific time slots for different functions. Each super-frame contains control headers, data portions, and coexistence windows that are separated in time, allowing multiple wireless systems to share the spectrum without continuous interference. This temporal segmentation resolves the contradiction by organizing spectrum access into structured intervals rather than continuous contention.

The patent implements periodic coexistence windows within super-frames that occur at regular intervals. These periodic windows allow wireless systems to negotiate spectrum access rights and exchange coexistence information systematically. By using periodic action rather than continuous negotiation, the system achieves efficient spectrum sharing while minimizing ongoing interference and contention overhead.

The patent introduces standardized coexistence beacons and control headers as intermediary elements that facilitate spectrum negotiation. These intermediaries carry pre-defined information elements about spectrum usage, system types, and access rights. By using these standardized intermediaries rather than direct complex negotiations between all systems, the patent achieves dynamic adaptability while reducing overall system complexity through abstraction.

The patent uses parameter changes within the coexistence beacon structure to convey negotiation information efficiently. Rather than complex message exchanges, systems modify specific parameters in the beacon (such as spectrum access rights, timing information, and system identification) to dynamically adapt to different conditions. This parameter-based approach provides adaptability while maintaining relatively simple protocol structures.

The patent transmits coexistence beacons periodically within specific windows of the super-frame structure rather than in every single frame. These periodic coexistence windows occur at strategically chosen intervals that maintain real-time coordination capability while significantly reducing the frequency of beacon transmissions. This periodic approach balances reliability requirements with overhead reduction by updating coordination information only when necessary.

The patent includes coexistence window reservation maps in the super-frame control headers that preliminarily allocate future coexistence window opportunities. By预先 reserving these time slots and informing all systems in advance, the patent reduces the need for frequent real-time beacon transmissions, as systems can plan their access based on the pre-announced reservation pattern, thereby reducing overhead while maintaining coordination reliability.