10.2.16L MBMS Scheduling Information
25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS
This message is transmitted periodically by UTRAN to inform UEs when the MBMS services, provided on the same S-CCPCH as the message is sent, are scheduled to be transmitted. The UE may use the scheduling information to discontinue receiving the concerned S-CCPCH. The message is transmitted in accordance with the MSCH configuration applicable for the corresponding S-CCPCH.
RLC-SAP: UM
Logical channel: MSCH
Direction: UTRAN UE
|
Information Element/Group name |
Need |
Multi |
Type and reference |
Semantics description |
Version |
|---|---|---|---|---|---|
|
Message type |
MP |
Message Type |
REL-6 |
||
|
Service scheduling info list |
MP |
1 to < maxMBMSservSched> |
REL-6 |
||
|
>MBMS Transmission identity |
MP |
MBMS Transmission identity 10.3.9a.12 |
REL-6 |
||
|
>MBMS Service transmissions info list |
OP |
1 to < maxMBMSTransmis> |
One or more sets of scheduling information comprising of the beginning and duration of an MBMS service transmission for one scheduling period |
REL-6 |
|
|
>>Start |
MP |
Integer (0..1020) by step of 4 |
Indicates the start of the transmission relative to the start of the TTI in which the MBMS SCHEDULING INFORMATION message was received. In number of radio frames (i.e. the value 0 would correspond to the start of the MBMS transmission being in the same TTI as the MBMS Scheduling Information message.) See note 1. |
REL-6 |
|
|
>>Duration |
MP |
Integer (4..1024) by step of 4 |
In number of radio frames |
REL-6 |
|
|
>Next scheduling period |
MP |
Integer (0..31) |
Number of scheduling periods (see 10.3.9a.16), after the current scheduling period, in which no data will be transmitted for the concerned service. If the Next scheduling period is set to 0, data may be transmitted for the concerned service in the scheduling period immediately following the current scheduling period |
REL-6 |
NOTE: If UTRAN sets the value of the IE "Start" to a value less than or equal to 16 then the UE may not successfully receive the start of the MTCH transmission.