AP Functional Requirement Initiatives for WLAN Broadcasting JG. Park SAMSUNG t9park@samsung.com SK. Sung SAMSUNG s.sung@samsung.com

Overview WLAN Broadcasting Requirement and functional component for WLAN broadcasting L2/L3 Address translation, STA monitoring,… Further discussion & conclusion WLAN Interactive casting

Introduction Features of WLAN Broadcasting Interactive data transfer between end-point terminal and (internet) broadcast server Non-symmetric traffic between AP and STAs Frequent repetition via STA’s REQ and/or AP scheduling Wide spectrum of service quality Support for P2P, P2M, and M2M signaling

Requirement and Functional Components QoS Requirement for WLAN Broadcasting Endpoint throughput Seamless subscription provision Application specific latency Multiple access channel capacity

Requirement and Functional Components Some recommendation for WLAN Broadcasting AP functionality L2/L3 dynamic address translation Packet switching based traffic Mobility support over IP(FMIP/HMIP) STA monitoring/tracking Channel scheduling and allocation for Non-symmetric data exchange Storage backup for frequent message Dynamic routing in wired/wireless DS for AP broadcasting

Further discussion Motivation for WLAN interactive casting Efficient WLAN broadcasting using extended AP functionality Dynamic interface between L2 and L3 Pervasive computing capability at L2.5 Automatic topology discovery and path configuration Needs for customized broadcasting service

Conclusion We recommend WLAN broadcasting as one of essential functional components to consider WLAN interactive casting with the advantage of extending AP functionality under various user environment and service requirement