A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : Mobile Throughput Guidance Inband Signaling Protocol
Authors : Ankur Jain
Andreas Terzis
Hannu Flinck
Nurit Sprecher
Swaminathan Arunachalam
Kevin Smith
Filename : draft-flinck-mobile-throughput-guidance-03.txt
Pages : 20
Date : 2015-09-07
Abstract:
The bandwidth available for end user devices in cellular networks can
vary by an order of magnitude over a few seconds due to changes in
the underlying radio channel conditions, as device mobility and
changes in system load as other devices enter and leave the network.
Furthermore, packets losses are not always signs of congestion. The
Transmission Control Protocol (TCP) can have difficulties adapting to
these rapidly varying conditions leading to inefficient use of a
cellular network's resources and degraded application performance.
Problem statement, requirements and the architecture for a solution
is documented in [Req_Arch_MTG_Exposure].
This document proposes a mechanism and protocol elements that allow
the cellular network to provide near real-time information on
capacity available to the TCP server. This "Throughput Guidance"
(TG) information would indicate the throughput estimated to be
available at the radio downlink interface (between the Radio Access
Network (RAN) and the mobile device (UE)). TCP server can use this
TG information to ensure high network utilization and high service
delivery performance. The document describes the applicability of
the proposed mechanism for video delivery over cellular networks; it
also presents test results from live operator's environment.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-flinck-mobile-throughput-guidance/
There's also a htmlized version available at:
https://tools.ietf.org/html/draft-flinck-mobile-throughput-guidance-03
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-flinck-mobile-throughput-guidance-03
Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.
Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/
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