8.25 S103 PDN Data Forwarding Info (S103PDF)

29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 16Stage 3TS

The HSGW Address and GRE Key identify a GRE Tunnel towards a HSGW over S103 interface for a specific PDN connection of the UE. The EPS Bearer IDs specify the EPS Bearers which require data forwarding that belonging to this PDN connection. The number of EPS bearer Ids included is specified by the value of EPS Bearer ID Number.

The spare bits indicate unused bits, which shall be set to 0 by the sending side and which shall not be evaluated by the receiving side.

Bits

Octets

8

7

6

5

4

3

2

1

1

Type = 90 (decimal)

2 to 3

Length = n

4

Spare

Instance

5

HSGW Address for forwarding Length = m

6 to (m+5)

HSGW Address for forwarding [4..16]

(m+6)- to (m+9)

GRE Key

(m+10)

EPS Bearer ID Number = k

(m+11) to (m+10+k)

Spare

EPS Bearer ID

Figure 8.25-1: S103 PDN Data Forwarding Info