%% You should probably cite draft-amend-tsvwg-multipath-framework-mpdccp-01 instead of this revision. @techreport{amend-tsvwg-multipath-framework-mpdccp-00, number = {draft-amend-tsvwg-multipath-framework-mpdccp-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-amend-tsvwg-multipath-framework-mpdccp/00/}, author = {Markus Amend and Anna Brunstrom and Andreas Kassler and Veselin Rakocevic}, title = {{IP compatible multipath framework for heterogeneous access networks}}, pagetotal = 8, year = ** No value found for 'doc.pub_date.year' **, month = ** No value found for 'doc.pub_date' **, day = ** No value found for 'doc.pub_date.day' **, abstract = {More and more of today's devices are multi-homing capable, in particular 3GPP user equipment like smartphones. In the current standardization of the next upcoming mobile network generation 5G Rel. 16, this is especially targeted in the study group Access Traffic Steering Switching Splitting {[}3GPP, TR 23.793{]}. ATSSS describes the flexible selection or combination of 3GPP untrusted access like Wi-Fi and cellular access, overcoming the single-access limitation of today's devices and services. Another multi- connectivity scenario is the Hybrid Access {[}draft-lhwxz-hybrid- access-network-architecture, draft-muley-network-based-bonding- hybrid-access{]}, providing multiple access for CPEs, which extends the traditional way of single access connectivity at home to dual- connectivity over 3GPP and fixed access. A missing piece in the ATSSS and Hybrid Access is the access and path measurement for efficient and beneficial traffic steering decisions. This becomes particularly important in heterogeneous access networks with a multitude of volatile access paths. MP-TCP can be employed in such scenarios and concerning the ATSSS, it is the agreed protocol for the traffic splitting mode. A decision for MP-TCP though leaves the increasing share of UDP in today's traffic mix (https://arxiv.org/ abs/1801.05168) unconsidered. In this document, a network architecture leveraging the MP-DCCP network protocol is proposed, which enables above scenarios and address the formulated issues either independent or complementary to MP-TCP.}, }