TCMA = Tiered Contention Multiple Access Runs on boot. A form of CSMA/CA, a cellular traffic management protocol. TCMA schedules transmission of different types of traffic based on urgency. China-only? (the "cn" in cn.oneplus is China's country code) https://en.wikipedia.org/wiki/Carrier-sense_multiple_access_with_collision_avoidance https://patents.google.com/patent/US20020163933A1
Phones target this application