8.26 S1-U Data Forwarding (S1UDF)
29.2743GPP3GPP Evolved Packet System (EPS)Evolved General Packet Radio Service (GPRS) Tunnelling Protocol for Control plane (GTPv2-C)Release 18Stage 3TS
The Serving GW Address and Serving GW S1-U TEID consists of the S1-U Tunnel information allocated by the Serving GW for an EPS Bearer identified by the EPS Bearer ID which requires data forwarding during active handover from E-UTRAN Access to cdma2000 HRPD Access.
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.
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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|
1 |
Type = 91 (decimal) |
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|
2 to 3 |
Length = n |
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|
4 |
Spare |
Instance |
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|
5 |
Spare |
EPS Bearer ID |
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|
6 |
Serving GW Address Length = m |
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7 to (m+6) |
Serving GW Address [4..16] |
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(m+7) to (m+10) |
Serving GW S1-U TEID |
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Figure 8.26-1: S1-U Data Forwarding Info