| CPC H04W 76/19 (2018.02) [H04W 88/085 (2013.01)] | 8 Claims | 

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               1. A method performed by a central unit (CU) of a base station for processing a radio link control (RLC) failure, the method comprising: 
            transmitting, to a distributed unit (DU) of the base station, a user equipment (UE) context modification request message including first information indicating a logical channel identifier (LCID) associated with an RLC entity needing re-establishment; and 
                receiving, from the DU, a UE context modification response message including second information indicating a list of secondary cells related to the RLC entity in case that the RLC entity indicated in the first information needs to be re-established, 
                wherein the RLC entity indicated in the first information needs to be re-established is identified by the DU of the base station. 
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