SI-RequestConfig
SI-RequestConfig is an RRC information element of 3GPP TS 38.331 (38331), the 5G NR Radio Resource Control (RRC) protocol.
Definition
The IE SI-RequestConfig contains configuration for Msg1 based SI request without Msg1 repetition. For the random access parameters (e.g. prach-RootSequenceIndex , msg1-SubcarrierSpacing , etc.) not configured in SI-RequestConfig , the UE applies the parameters configured in rach-ConfigCommon corresponding to the RACH resource set selected upon RACH initialization (as specified in TS 38.321 [3]), of the initial uplink BWP unless otherwise specified.
SI-RequestConfig ::= SEQUENCE {
rach-OccasionsSI SEQUENCE {
rach-ConfigSI RACH-ConfigGeneric,
ssb-perRACH-Occasion ENUMERATED {oneEighth, oneFourth, oneHalf, one, two, four, eight, sixteen}
} OPTIONAL, -- Need R
si-RequestPeriod ENUMERATED {one, two, four, six, eight, ten, twelve, sixteen} OPTIONAL, -- Need R
si-RequestResources SEQUENCE (SIZE (1..maxSI-Message)) OF SI-RequestResources
}Fields (5)
| Field | Description |
|---|---|
| rach-OccasionsSI SEQUENCE { · OPTIONAL Need R | Configuration of dedicated RACH Occasions for SI. If the field is absent, the UE uses the corresponding parameters configured in rach-ConfigCommon corresponding to the RACH resource set selected upon RACH initialization (as specified in TS 38.321 [3]), of the initial uplink BWP. |
| rach-ConfigSI RACH-ConfigGeneric | |
| ssb-perRACH-Occasion ENUMERATED {oneEighth, oneFourth, oneHalf, one, two, four, eight, sixteen} | |
| si-RequestPeriod ENUMERATED {one, two, four, six, eight, ten, twelve, sixteen} · OPTIONAL Need R | Periodicity of the SI-Request configuration in number of association periods. |
| si-RequestResources SEQUENCE (SIZE (1..maxSI-Message)) OF SI-RequestResources | If there is only one entry in the list, the configuration is used for all SI messages for which si-BroadcastStatus or posSI-BroadcastStatus is set to notBroadcasting . Otherwise: - If si-SchedulingInfo-v1700 is not present and the SI-RequestConfig is used for on-demand SI request in SI-SchedulingInfo or PosSI-SchedulingInfo , the 1 st entry in the list corresponds to the first SI message in schedulingInfoList or posSchedulingInfoList for which si-BroadcastStatus or posSI-BroadcastStatus is set to notBroadcasting , 2 nd entry in the list corresponds to the second SI message in schedulingInfoList or posSchedulingInfoList for which si-BroadcastStatus or posSI-BroadcastStatus is set to notBroadcasting and so on. - If si-SchedulingInfo-v1700 is present and SI-RequestConfig is configured in SI-SchedulingInfo for on-demand SI request, the UE generates a list of concatenated SI messages by appending the SI messages containing type1 SIB configured by schedulingInfoList2 in si-SchedulingInfo-v1700 to the SI messages configured by schedulingInfoList in si-SchedulingInfo. The 1 st entry in the list corresponds to the first SI message for which si-BroadcastStatus is set to notBroadcasting , 2 nd entry in the list corresponds to the second SI message for which si-BroadcastStatus is set to notBroadcasting and so on. - If si-SchedulingInfo-v1700 is present and SI-RequestConfig is configured in PosSI-SchedulingInfo for on-demand SI request, the UE generates a list of concatenated SI messages by appending the SI messages containing type2 SIB configured by schedulingInfoList2 in si-SchedulingInfo-v1700 to the SI messages configured by posSchedulingInfoList in posSI-SchedulingInfo. The 1 st entry in the list corresponds to the first SI message for which posSI-BroadcastStatus or si-BroadcastStatus is set to notBroadcasting , 2 nd entry in the list corresponds to the second SI message for which posSI-BroadcastStatus or si-BroadcastStatus is set to notBroadcasting and so on. Change of si-RequestResources should not result in system information change notification. |