Wireless Device Vendor Identification via Spread Spectrum Modulation

The communication protocol is segmented into two layers: a standard protocol layer for basic stable communication and a vendor-specific extension layer for customized requirements. This allows devices to maintain stable connections through the standard protocol while enabling vendor-specific optimizations (such as power-saving modes) through the extension layer, thus resolving the contradiction between connection stability and adaptability to specific device requirements

The communication mode is made dynamic by allowing devices to switch between standard protocol mode and vendor-specific optimized mode based on mutual identification. When two devices from the same vendor detect each other, they dynamically transition to a more efficient communication mode (such as reduced power consumption mode), whereas devices from different vendors continue using the standard stable protocol, thus achieving both stability and adaptability

A vendor-specific spread spectrum sequence code acts as an intermediary to convey vendor information indirectly. Instead of transmitting plain vendor identification data, the system modulates this information onto a spread spectrum sequence code, which serves as a carrier. This intermediary mechanism allows receiving devices to identify vendor information through correlation detection without exposing raw vendor data, thus balancing ease of identification with security and privacy protection

The receiving device discards the spread spectrum modulation and recovers only the essential vendor identification information through correlation detection. The actual vendor information is embedded in the sequence code selection rather than explicitly transmitted, allowing the receiver to recover vendor identity without receiving or storing sensitive raw vendor data, thus maintaining security while enabling identification