Cell configuration parameters
地域：
VA
VA Reston
摘要
A wireless device receives, from a first base station, at least one radio resource control (RRC) message. The at least one RRC message comprises master cell group (MCG) configuration parameters of a primary cell (PCell) of the first base station and secondary cell group (SCG) configuration parameters of a primary SCG cell (PSCell) of a second base station, for dual connectivity of the wireless device with the first base station and the second base station. The wireless device determines a failure of the PCell before the PSCell configuration is applied. Based on the failure of the PCell, the wireless device performs a cell selection. In response to the selected cell being the PSCell, the wireless device synchronizes with the PSCell based on the SCG configuration parameters.
說明書
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The UE may determine that the selected cell is the PSCell based on a cell identity of the selected cell being the cell identity of the PSCell (candidates).
The UE may detect a failure of a primary cell of the first base station. The failure comprises at least one of:
-
- a radio link failure;
- a reconfiguration with sync failure;
- a mobility failure from new radio;
- an integrity check failure indication from lower layers (e.g., PDCP layer) concerning
- signaling radio bearer 1 (SRB1) or signaling radio bearer 2 (SRB2); or
- an RRC connection reconfiguration failure. The base station may send a reconfiguration with sync in an RRC message to the UE in RRC connected state. The reconfiguration with sync may comprise a reconfiguration timer (e.g., T304). Based on receiving the reconfiguration sync, the UE may start the reconfiguration timer and perform the reconfiguration with sync (e.g., handover). Based on expiry of the reconfiguration timer, the UE determine the reconfiguration sync failure. A base station may send mobility from NR command message to the UE in RRC connected state. Based on receiving the mobility from NR command message, the UE may perform to handover from NR to a cell using other RAT (e.g., E-UTRA). The UE may determine the mobility failure from NR based on at least one of conditions being met:
- if the UE does not succeed in establishing the connection to the target radio access technology; or
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