7.7.107 Additional MM context for SRVCC
29.0603GPPGeneral Packet Radio Service (GPRS)GPRS Tunnelling Protocol (GTP) across the Gn and Gp interfaceRelease 17TS
The additional MM Context for SRVCC information element contains mobile station classmarks, supported codec list that are necessary for the target SGSN to perform SRVCC as defined in 3GPP TS 23.216 [50]. The coding of Mobile Station Classmarks and Supported Codec List fields include the IE value part as it is specified in 3GPP TS 24.008 [5].
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Bits |
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Octets |
8 |
7 |
6 |
5 |
4 |
3 |
2 |
1 |
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1 |
Type = 207 (decimal) |
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2 to 3 |
Length = n |
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4 |
Length of the Mobile Station Classmark 2 |
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5 to a |
Mobile Station Classmark 2 |
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b |
Length of the Mobile Station Classmark 3 |
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(b+1) to c |
Mobile Station Classmark 3 |
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d |
Length of the Supported Codec List |
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(d+1) to e |
Supported Codec List |
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(e+1) to (n+3) |
These octet(s) is/are present only if explicitly specified |
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Figure 7.7.107-1: Additional MM context for SRVCC