Patent ID: 8520558
Filing Date: 2013-08-27
Classification: H04L,H04W

Abstract:
1. A quality of service (QoS) securing method, comprising: receiving, by a first apparatus, data transmitted from a second apparatus; generating, by the first apparatus, a communication environment update request message according to a change in a communication environment of the first apparatus, the first apparatus being in communication with the second apparatus, and the message comprising information about characteristics of a link of the changed communication environment and/or information about useable resources for processing data being received by the first apparatus in the changed communication environment, wherein the information about characteristics of the link of the changed communication environment includes information that is added or corrected on a transmission path from the reception side to the transmission side; transmitting, by the first apparatus, the communication environment update request message to the second apparatus due to an impending change in network by the first apparatus; receiving, by the second apparatus, the communication environment update request message from the first apparatus; updating, by the second apparatus, a QoS of data transmission between the first apparatus and the second apparatus based on the received communication environment update request message; transmitting, by the second apparatus, response information to the first apparatus, when the second apparatus is ready to transmit data based on the updated QoS; performing a handover, by the first apparatus, after receipt of the response information from the second apparatus; and transmitting data from the second apparatus to the first apparatus according to the updated QoS.