Handset STAR-RIS Interaction Protocol

Technical Explanation

In indoor 6G deployments, sub-THz signals are easily blocked by human bodies, doors, and furniture. STAR-RIS surfaces installed on walls can both reflect and transmit signals simultaneously to cover both sides of a partition. The Handset STAR-RIS Interaction Protocol allows a mobile device encountering signal blockage to send lightweight control packets over low-frequency or Bluetooth LE side-channels, reconfiguring the metasurface phase shifts to illuminate its non-line-of-sight location instantly.

Key Functions

• Coordinates handset beam direction with smart building metasurface tiles
• Bypasses sharp physical blockages without requiring additional high-power base stations
• Reconfigures STAR-RIS phase profiles in sub-milliseconds via low-power control links
• Maximizes indoor gigabit coverage across rooms and multi-floor buildings