9.2.2 Transport Network Layer Related IEs

36.4133GPPEvolved Universal Terrestrial Radio Access Network (E-UTRAN)Release 17S1 Application Protocol (S1AP)TS

9.2.2.1 Transport Layer Address

This information element is an IP address.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

Transport Layer Address

M

BIT STRING (SIZE(1..160, …))

The Radio Network Layer is not supposed to interpret the address information. It should pass it to the transport layer for interpretation.

For details on the Transport Layer Address, see TS 36.414 [12].

9.2.2.2 GTP-TEID

This information element is the GTP Tunnel Endpoint Identifier to be used for the user plane transport between eNB and the serving gateway.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

GTP-TEID

M

OCTET STRING (SIZE(4))

For details and range, see TS 29.281 [32].

9.2.2.3 Tunnel Information

The Tunnel Information IE indicates the transport layer address and UDP port number.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

Transport Layer Address

M

9.2.2.1

HeNB’s Transport Layer Address.

UDP Port Numbers

O

OCTET STRING (SIZE(2))

UDP Port Numbers if NAT/NAPT is deployed in the BBF access network.

9.2.2.4 URI

This IE is a URI.

IE/Group Name

Presence

Range

IE type and reference

Semantics description

URI

M

VisibleString

String representing URI (Uniform Resource Identifier)