3GPP44.060General Packet Radio Service (GPRS)Mobile Station (MS) - Base Station System (BSS) interfaceRadio Link Control / Medium Access Control (RLC/MAC) protocolRelease 17TS
This message is sent on the PACCH from a mobile station to the network in order to inform about the interest in an MBMS session.
Message type: MBMS SERVICE REQUEST
Direction: mobile station to network
Table 11.2.38.1: MBMS SERVICE REQUEST information elements
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< MBMS service request message content > ::=
< TLLI : bit (32) >
< TMGI : < TMGI struct > >
{ 0 | 1 < MBMS Session Identity : bit (8) > }
< MS_ID Request Indication : bit (1) >
< padding bits > ;
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Table 11.2.38.2: MBMS SERVICE REQUEST information element details
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TLLI (32 bit field)
This field contains the TLLI of the mobile station. This field is encoded as defined in sub-clause 12.16.
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TMGI
This field contains the Temporary Mobile Group Identity of the MBMS service that is requested by the mobile station. This field is encoded as defined in sub-clause 12.33.
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MBMS Session Identity (8 bit field)
The MBMS Session Identity field is included in the message if the request concerns a specific MBMS session, which is known by the mobile station. This field contains the MBMS Session Identity of the concerned MBMS session.
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MS_ID Request Indication (1 bit field)
This field is used by the mobile station to indicate whether an MS_ID (and thus the possibility to send feedback) is requested by the mobile station. If no MS_ID is requested, the mobile station will not be counted by the network for the given MBMS session (that does not however prevent the network from addressing and assigning the mobile station an MS_ID, if available and the network wishes to do so).
0 MS_ID is not requested
1 MS_ID is requested
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