Voice over internet protocol (VoIP) downlink packet scheduling apparatus and method in a mobile communication base station (BS) system

摘要

A VoIP downlink packet scheduling apparatus and method in a mobile communication Base Station (BS) system are provided. The downlink packet scheduling apparatus includes a packet queue for storing a downlink packet when the downlink packet is received; a downlink scheduler for selecting a packet stored to the packet queue under a certain condition and scheduling a corresponding packet according to whether a packet drop module determines to drop the selected packet; and the packet drop module calculates a transmission delay time of the packet, determines whether the transmission delay time of the packet meets a threshold, and determines whether to drop or transmit the corresponding packet according to whether the threshold is satisfied.