METHOD OF ERROR RECOVERY IN TRANSMITTING AND RECEIVING VOICE SERVICE IN PACKET BASED MOBILE COMMUNICATION SYSTEMS

摘要

Provided is a method of transmitting and receiving data using a persistent allocation scheme in order to effectively support a voice service between a base station and a mobile terminal in a packet based mobile communication system. When an error occurs in transmitting control information that indicates whether to use a radio resource using the persistent allocation scheme, the base station may retransmit the control information and thereby maintain a communication quality.

主权项

1. A base station for transmitting data to a terminal, the base station comprising:
a transmitter configured to transmit a first part of the data and an activation message indicating a start of a persistent scheduling transmission in a same persistent allocation interval, the activation message transmitted through a Physical Downlink Control Channel (PDCCH); and a receiver configured to receive an acknowledgement message for the activation message from the terminal, wherein the transmitter is further configured to transmit a second part of the data according to the persistent scheduling transmission, wherein the transmitter is further configured to transmit a deactivation message indicating an end of the persistent scheduling transmission, wherein the receiver is further configured to receive an acknowledgement message for the deactivation message from the terminal, and wherein the activation message is retransmitted to the terminal if a negative acknowledgement message for the activation message is received or a positive acknowledgement message for the activation message is not received from the terminal.