Wireless Power Transmitter Sub-Carrier Allocation for Data Collision

The patent segments the communication resources by introducing sub-carriers and time slots. Multiple target devices are assigned different sub-carriers (frequency division) and/or different time slots (time division), dividing the shared communication medium into separate channels. This prevents data collisions during initial connection while maintaining the ability to serve multiple devices simultaneously, thus resolving the contradiction between power transmission capacity and data communication reliability.

The patent adds new dimensions to the communication resource space by introducing frequency (sub-carrier) and time (time slot) dimensions. Instead of single-dimensional time-based communication, the system utilizes multi-dimensional resource allocation (frequency-time-grid), enabling simultaneous communication with multiple devices without interference, thereby maintaining both high capacity and reliability.

The patent implements preliminary action by having the source device detect and allocate sub-carriers and time slots to target devices during the initial connection phase, before actual data communication begins. This pre-arranged resource allocation prevents subsequent data collisions and eliminates the need for complex real-time conflict resolution mechanisms, thereby improving communication efficiency while keeping the complexity manageable through structured upfront planning.

The patent enables target devices to autonomously identify and select their allocated sub-carriers and time slots based on information provided by the source device, without requiring complex centralized arbitration for each communication act. This self-service approach simplifies the overall system control while maintaining efficient resource utilization.