Time-Division Multi-Channel RF Transmission for Simpler MIMO

The patent merges multiple RF lines into a single RF line by using time-division multiplexing. Multiple transmit channels share the same RF line through sequential time slots, eliminating the need for separate RF lines for each antenna. This reduces device complexity while maintaining the ability to transmit multiple signals simultaneously through different time slots.

The patent employs periodic time-division multiplexing where each transmit channel is activated in sequential time slots. The pulse generator creates periodic pulse signals that gate each transmit channel in turn, allowing multiple signals to be transmitted through a single RF line at different time intervals. This periodic activation enables MIMO functionality without requiring multiple concurrent RF paths.

The patent incorporates a delay-locked loop (DLL) that provides feedback control for precise timing synchronization. The DLL monitors the timing of pulses from different transmit channels and adjusts their relative delays to ensure accurate time-division multiplexing. This feedback mechanism guarantees that signals from different channels are properly separated in time without interference, maintaining signal integrity while sharing a single RF line.

The patent replaces complex mechanical or hardware-based signal separation mechanisms with electronic timing control using pulse generators and DLLs. Instead of relying on physical isolation between RF lines, the system uses electronically controlled time slots with precise timing synchronization to separate signals. This substitution reduces hardware complexity while achieving the necessary signal separation precision through electronic timing management.