Octets

8

7

6

5

4

3

2

1

1

Type = 152 (decimal)

2 to 3

Length = n

4

Spare

Instance

5

Supported-Features

6 to (n+4)

These octet(s) is/are present only if explicitly specified

5/1

PRN

S11, S4

PGW Restart Notification.

If both the SGW and the MME/S4-SGSN support this feature, the SGW shall send PGW Restart Notification message to the MME/S4-SGSN when the SGW detects that the peer PGW has restarted, and the SGW may send PGW Restart Notification message when the SGW detects that the peer PGW has failed and not restarted, as specified in clause 7.9.5.

5/2

MABR

S11

Modify Access Bearers Request.

If both the SGW and the MME support this feature, the MME may modify the S1-U bearers of all the PDN connections of the UE by sending a Modify Access Bearers Request message as specified in clause 7.2.24.

5/3

NTSR

S11/S4

Network Triggered Service Restoration procedure.

If both the SGW and the MME/S4-SGSN support this feature (see 3GPP TS 23.007 [17]), the SGW shall send a Downlink Data Notification message including the IMSI to the MME/S4-SGSN on the TEID 0 as part of a network triggered service restoration procedure.

5/4

CIOT

S11/S4

Cellular Internet Of Things.

Support of this feature may be indicated over the S11/S4 interface, from the SGW to the MME/SGSN. See NOTE 1.

If the SGW notifies the support of this feature over S11, it indicates to the MME that the SGW supports all the following CIoT features:

• EUTRAN-NB-IoT RAT type,
• Non-IP PDN type,
• S11-U tunneling,
• Serving PLMN Rate Control,
• MO Exception Data indication,
• Extended PCO

If the SGW notifies the support of this feature over S4, it indicates to the SGSN that the SGW supports the Non-IP PDN type.

5/5

S1UN

S11

S1-U path failure notification feature.

The support of this feature may be indicated over the S11 interface, from the MME to the SGW. See clause 20.3 of 3GPP TS 23.007 [17].

5/6

ETH

S11

Ethernet PDN type

Support of this feature may be indicated over the S11 interface, from the SGW to the MME.

5/7

MTEDT

S11

Support of MT-EDT

Support of this feature may be indicated over the S11 interface, from the SGW to the MME.

NOTE 1: An SGW does not need to know whether the MME/SGSN support the CIoT feature.

Feature Octet / Bit: The octet and bit number within the Supported-Features IE, e.g. "5 / 1".

Feature: A short name that can be used to refer to the octet / bit and to the feature.

Interface: A list of applicable interfaces to the feature.

Description: A clear textual description of the feature.