Samsung Electronics Co., Ltd.

Indae Ha

Taiho Yoon

According to one embodiment of the present invention, a method and a device for improving communication quality in a mobile communication network are provided, and the method further comprises the steps of transmitting downlink packets for IP-based voice traffic to a terminal in a radio link unacknowledged mode (RLC UM) and storing at least one packet among the downlink packets for retransmission. In addition, the present invention provides a communication method and device of a target base station for retransmitting the stored packet to the terminal. Furthermore, the present invention provides a method and a device of a terminal that receives a packet from the target base station.

Method and device for improving communication quality in mobile communication network

Provided is a method for a base station to support handover of a terminal in a mobile communication system. The method may include: receiving a random access preamble from the terminal; transmitting packets stored for the terminal to the terminal; and receiving a handover complete message from the terminal, wherein transmission of the stored packets to the terminal is initiated before receiving the handover complete message. In a feature of the present invention, when a terminal receiving data from the source base station is handed over to the target base station, it is possible to more rapidly transmit the terminal data forwarded to the target base station to the handed over terminal. Hence, user convenience can be enhanced.

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Suwon-si, South Korea

Indae Ha