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MPTCP proxy for mobile networks

MPTCP proxy for mobile networks. multi-homing in 3GPP networks. Motivation Intelligent network selection for better accommodation Seamless network handover for better mobility Resource pooling across networks for better performance Roadmap

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MPTCP proxy for mobile networks

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  1. MPTCP proxy for mobile networks

  2. multi-homing in 3GPP networks • Motivation • Intelligent network selection for better accommodation • Seamless network handover for better mobility • Resource pooling across networks for better performance • Roadmap • R6: GAN, interfaces for non-3GPP RATs through GERAN simulation. • R7: I-WLAN, interworking of PLMN with WLAN RAT. • R8: shared anchor for both I-WLAN and PS RATs, yielding seamless handover. • R8-10: EPS's mobility support for simultaneous multiple RATs through different PDN connections (MAPCON) • R10: EPS's mobility support for simultaneous multiple RATs through a single PDN connection (IFOM) • What is still missing • Pooling resources from different RATs for the use of a single IP flow.

  3. Where does MPTCP fit in? • MPTCP offers • transparent wireless resource pooling for a single "IP flow" for multi-homing UEs with least network complications • automatic selection/handover/pooling • E2E MPTCP deprives • network's control over service/RAT preference • compatibility with legacy SPs reluctant to support MPTCP • MPTCP proxy as a compromise • benefit multihoming UEs without SP's MPTCP deployment • maintain operator's policy enforcement point

  4. Usecases • Enhanced experience • in addition to static policies • flexible traffic loading base on network status • resource pooling for enhanced QoE/mobility • Reduced expenses • aided by subscription/charging information • guide the consumption of compound bandwidth package in a more economic way • resource pooling for reduced expense for user/operator

  5. Requirements for MPTCP proxy • Protocol transition • Detection of UE's MPTCP capability • Negotiation with MPTCP UE on behalf of non-MPTCP SP • Transcoding between TCP and MPTCP connections • Traffic mediation • Anchoring of subflow traffic • sitting directly on the shared path of or • have explicit anchoring over MPTCP subflows • Mediation of subflow traffic • policy driven mediation • management driven mediation

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