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TR 23.919SA2
Direct Tunnel Deployment Guideline

use "3GPP‑Page" to get the Word version
use "ETSI‑search" to get the PDF version
for a better overview, the Table of Contents (ToC) is reproduced
V15.0.0 (PDF)  2018/06  13 p.
V14.0.0  2017/03  13 p.
V13.0.0  2015/12  13 p.
V12.0.0  2014/09  13 p.
V11.0.0  2012/09  13 p.
V10.0.0  2011/03  13 p.
V9.0.0  2009/12  13 p.
V8.0.0  2008/12  13 p.
V7.0.0  2007/06  13 p.

Rapporteur:  Mr. Liu, Lan

Direct Tunnel is an optional feature in Iu mode that allows the SGSN to establish a direct user plane tunnel between RAN and GGSN within the PS domain.
The SGSN handles the control plane signalling and makes the decision when to establish a Direct Tunnel. In case of Direct Tunnel, the SGSN provides the RAN with the TEID and user plane address of the GGSN, and provides the GGSN with the TEID and user plane address of the RAN.
This TR contains deployment guidelines for the use of direct tunnelling of user plane data between the RNC and the GGSN (earlier known as the One Tunnel approach).

full Table of Contents for  TR 23.919  Word version:   15.0.0

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