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RACH initiation in 5g NR

+1 vote
29 views

38.300 says below
- Initial access from RRC_IDLE;
- RRC Connection Re-establishment procedure;
- DL or UL data arrival during RRC_CONNECTED when UL synchronisation status is "non-synchronised";
- UL data arrival during RRC_CONNECTED when there are no PUCCH resources for SR available;
- SR failure;
- Request by RRC upon synchronous reconfiguration (e.g. handover);
- Transition from RRC_INACTIVE;
- To establish time alignment for a secondary TAG;
- Request for Other SI (see clause 7.3);
- Beam failure recovery;
- Consistent UL LBT failure on SpCell.

Can someone explain about
DL or UL data arrival during RRC_CONNECTED when UL synchronisation status is "non-synchronised";

posted Aug 19 by Sudhanshu Kumar Srivastav

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