Patent ID: 7738505
Filing Date: 2010-06-15
Classification: H04B,H04J,H04L,H04W

Abstract:
1. A method for synchronizing transmission/reception time by a base station controller for delay in transmission/reception of a data frame of a digital voice signal in a mobile communication system which includes a media gateway and the base station controller, the media gateway including a trans-coder for converting an analog voice signal and a coded digital voice signal into each other, the base station controller transmitting/receiving the digital voice signal to/from the media gateway, the method comprising: checking whether or not forward data frames of the digital voice signal received from the media gateway are synchronized; appointing information of a forward delay when the forward data frames are not synchronized, and notifying the media gateway of the appointed forward delay information and a reverse data frame of the voice signal received from a mobile station; requesting time synchronization to the media gateway when synchronization is not established for the forward data frames received in sequence; receiving information of transmission timing adjusted by the media gateway according to the requested time synchronization; and synchronizing the forward data frames using the transmission timing information and transmitting the forward data frames to the mobile station.