13.8 Parameter values for default radio configurations in CELL_FACH
25.3313GPPProtocol specificationRadio Resource Control (RRC)Release 17TS
The UE shall support the use of the default parameter values that are specified in the following. Optional IEs that are not used, are omitted. The tabular values included in this subclause, represent the actual IE values as in clause 10, and not the ASN.1 representation of these values.
The UE shall for each RB with radio bearer identity n listed in the default configuration with the Default configuration identity given in IE "Default configuration identity for CELL_FACH":
1> if a multiplexing option containing the combination "FACH" for the DL and "RACH" for the UL for a RB with radio bearer identity n is included in the default configuration:
2> if the radio bearer identity n is listed in explicit or another default configuration in the message received by the UE:
3> if there is no multiplexing option containing the combination "FACH" for the DL and "RACH" for the UL for this radio bearer identity n:
4> append the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n to the radio bearer mapping information for RB with radio bearer identity n.
2> else
3> store the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n and configure the transmitting and receiving RLC entities in the UE for that radio bearer according to Table 13.8.1
1> if a multiplexing option containing the combination "HS-DSCH" for the DL and "RACH" for the UL for a RB with radio bearer identity n is included in the default configuration:
2> if the radio bearer identity n is listed in explicit or another default configuration in the message received by the UE:
3> if there is no multiplexing option containing the combination "HS-DSCH" for the DL and "RACH" for the UL for this radio bearer identity n:
4> append the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n to the radio bearer mapping information for RB with radio bearer identity n.
2> else
3> store the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n and configure the transmitting and receiving RLC entities in the UE for that radio bearer according to Table 13.8.1
1> if a multiplexing option containing the combination "HS-DSCH" for the DL and "E-DCH" for the UL for a RB with radio bearer identity n is included in the default configuration:
2> if the radio bearer identity n is listed in explicit or another default configuration in the message received by the UE:
3> if there is no multiplexing option containing the combination "HS-DSCH" for the DL and "E-DCH" for the UL for this radio bearer identity n:
4> append the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n to the radio bearer mapping information for RB with radio bearer identity n.
2> else
3> store the radio bearer mapping information in accordance with the default parameters for RB with radio bearer identity n and configure the transmitting and receiving RLC entities in the UE for that radio bearer according to Table 13.8.1
Table 13.8.1: Default radio configuration 0 in CELL_FACH
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Ref 34.108 / 25.993 |
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Default configuration identity |
0 |
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RB INFORMATION |
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rb-Identity |
RB1: 1, RB2: 2, RB3: 3, RB4: 4 |
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rlc-InfoChoice |
RLC info for CELL_FACH signalling |
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>ul-RLC-Mode |
RB1: UM, RB2-RB4: AM |
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>>transmissionRLC-DiscardMode |
RB1: N/A, RB2-RB4: NoDiscard |
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>>>maxDat |
RB1: N/A, RB2-RB4: 40 |
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>>transmissionWindowSize |
RB1: N/A, RB2-RB4: 64 |
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>>timerRST |
RB1: N/A, RB2-RB4: 200 |
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>>max-RST |
RB1: N/A, RB2-RB4: 1 |
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>>pollingInfo |
RB1: N/A, RB2-RB4: as below |
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>>>TimerPoll |
RB1: N/A, RB2-RB4: 1000 |
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>>>PollSDU |
RB1: N/A, RB2-RB4: 1 |
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>>>lastTransmissionPDU-Poll |
RB1: N/A, RB2-RB4: FALSE |
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>>>lastRetransmissionPDU-Poll |
RB1: N/A, RB2-RB4: TRUE |
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>>>PollWindow |
RB1: N/A, RB2-RB4: 99 |
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>dl-RLC-Mode |
RB1: UM, RB2-RB4: AM |
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>>dl-RLC-PDU-size |
RB1: N/A, RB2-RB4: 128 (actual size 144 bits) |
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>>inSequenceDelivery |
RB1: N/A, RB2-RB4: TRUE |
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>>receivingWindowSize |
RB1: N/A, RB2-RB4: 64 |
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>>dl-RLC-StatusInfo |
RB1: N/A, RB2-RB4: as below |
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>>>missingPDU-Indicator |
RB1: N/A, RB2-RB4: TRUE |
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>>dl-UM-RLC-LI-size |
RB1: 7, RB2-RB4: N/A |
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rlc-OneSidedReEst |
RB1-RB4: FALSE |
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rb-MappingInfo |
For RACH/FACH as a mapping option |
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>UL-LogicalChannelMappings |
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>>ul-TransportChannelType |
RACH |
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>>logicalChannelIdentity |
RB1: 1, RB2: 2, RB3: 3, RB4: 4 |
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>>rlc-SizeList |
RB1-RB4: explicitList (refers to SIB5/6) |
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>>>rlc-SizeIndex |
1 (refers to RACH TFS in SIB5/6) |
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>>mac-LogicalChannelPriority |
RB1: 1, RB2: 2, RB3: 3, RB4: 4 |
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>DL-logicalChannelMappingList |
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>>>dl-TransportChannelType |
FACH |
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>>>logicalChannelIdentity |
RB1: 1, RB2: 2, RB3: 3, RB4: 4 |
NOTE: In SRNC relocation, the target SRNC shall check IE "Signalling RB information" in IE "SRNS RELOCATION INFO" to find out the current RLC info and RB mapping info used by the UE.