Ad Hoc Network Coverage Extension via Synchronization Mediators

The patent introduces synchronization reference signals and timing advance mechanisms as intermediaries to mediate between relay nodes and the base station. These reference signals act as mediators that carry timing information through multiple hops, enabling synchronized communication without direct base station coordination at each hop. The timing advance mechanism serves as an intermediary correction tool that compensates for propagation delays accumulated across multiple relays.

The patent changes key parameters including timing advance values, synchronization signal periodicity, and resource allocation patterns to adapt to multi-hop conditions. By dynamically adjusting these parameters based on hop count and channel conditions, the system maintains synchronization accuracy while extending coverage area. The parameters are modified to account for cumulative propagation delays and interference patterns in extended networks.

The patent segments resource allocation into distinct types: orthogonal resources for infrastructure mode, and negotiated resources for direct link and mesh modes. This segmentation allows different resource management strategies for different connection types, simplifying the overall complexity. Each segment handles specific communication patterns with dedicated resource pools, avoiding the need to manage all possibilities in a single complex system.

The patent implements dynamic resource negotiation mechanisms where nodes can adaptively allocate and release resources based on current network conditions and communication needs. Resources are not statically assigned but dynamically adjusted through negotiation protocols between peer nodes and coordination with the base station. This dynamic approach reduces complexity by allowing the system to activate only the resource management features needed for current operational modes.