Method and apparatus for PCDP discard

摘要

A method and apparatus for discarding a packet data convergence protocol (PDCP) service data unit (SDU) are disclosed. A PDCP layer sets a timer and discards a PDCP SDU upon expiration of the timer. The timer may be set upon receiving the PDCP SDU from an upper layer or upon submitting the PDCP SDU to a lower layer for transmission. The timer and a radio link control (RLC) discard timer may be coordinated. Alternatively, the PDCP layer may discard the PDCP SDU based on a notification from an RLC layer or based on a PDCP status report.

主权项

1. A method for discarding a packet data convergence protocol (PDCP) packet, the method comprising:
a PDCP entity starting a timer upon reception of a PDCP service data unit (SDU) from an upper layer; the PDCP entity sending a corresponding PDCP PDU to a radio link control (RLC) entity; on condition that the timer expires, the PDCP entity discarding the PDCP SDU; and the PDCP entity sending an indication of the discard to the RLC entity.