Question: When releasing an LWA (LWIP - LTE-WLAN Aggregation) configuration in a UE (User Equipment), what action is taken regarding PDCP (Packet Data Convergence Protocol) for each affected LWA DRB (Data Radio Bearer)?
Option 1: Suspend PDCP data transmission temporarily for this DRB at the LWAAP entity.
Option 2: Perform PDCP data recovery as specified in the relevant E-UTRA protocol.
Option 3: Immediately flush all PDCP buffers related to the LWA DRB without recovery.
Option 4: Continue PDCP data handling uninterrupted for this DRB during LWA release.
Explanation: When releasing an LWA configuration, performing PDCP data recovery is crucial to ensure that any potentially lost packets during the transition are handled appropriately, maintaining data integrity. This action, specified in the E-UTRA protocol for PDCP, ensures a graceful release of resources without compromising ongoing transmissions.