US 2011/0255512 A1 · SYSTEM AND METHOD OF CONTROLLING TRANSMISSION OF ADAPTIVE MEDIA IN PERFORMING HANDOVER BETWEEN HETEROGENEOUS ACCESS NETWORKS

Abstract

A system and method of controlling transmission of adaptive media over handover performed between heterogeneous networks are disclosed. When a mobile terminal moves, it detects the necessity of handover between the heterogeneous networks, determines a target network to which it may perform handover, and transmits handover information to an adaptive media server that controls a transmission rate of adaptive media to previously inform about the handover. Then, the adaptive media adjusts a transmission rate of the adaptive media by using the received handover information, and when the mobile terminal performs handover to the target network, it can receive the adaptive media from the adaptive media server. Accordingly, when the mobile terminal using a real time multimedia service in a wireline/wireless environment in which various accessing techniques are integrated performs handover between heterogeneous networks, a change in quality of experience (QoE) sensed by subscribers due to the handover can be reduced.

Claims13

Dependent claims

A method for controlling transmission of adaptive media in performing handover between heterogeneous access networks by using a host-based IP mobility control method in an adaptive media transmission controlling system, the method comprising:

when a mobile terminal moves, detecting, by the mobile terminal, the necessity of performing of handover between the heterogeneous access networks, and searching adjacent networks;
determining, by the mobile terminal, a target network to which the mobile terminal is to perform handover, among searched adjacent networks;
transmitting, by the mobile terminal, handover information to an adaptive media server to allow the adaptive media server to adjust a transmission rate of adaptive media by using the handover information;
performing, by the mobile terminal, handover to the target network;
and
receiving, by the mobile terminal, adaptive media from the adaptive media server.

3 more elements

A method for controlling transmission of adaptive media in performing handover between heterogeneous access networks by using a network-based IP mobility control method in an adaptive media transmission controlling system, the method comprising:

when a mobile terminal moves, detecting, by the mobile terminal, the necessity of performing of handover between the heterogeneous access networks, and searching adjacent networks;
determining, by the mobile terminal, a target network to which the mobile terminal is to perform handover, among searched adjacent networks;
performing handover of a link layer, by the mobile terminal, from a currently accessed network to the target network;
initiating, by a point of attachment (PoA) of the target network, an IP handover procedure in association with a mobility control node within a core network;
transmitting, by the mobility control node within the core network, handover information to an adaptive media server to allow the adaptive media server to adjust a transmission rate of adaptive media by using the handover information;
and
receiving, by the mobile terminal, adaptive media from the adaptive media server.

4 more elements

Dependencies are inferred from the claim text.

System and method of controlling transmission of adaptive media in performing handover between heterogeneous access networks

Life of this patent

System and method of controlling transmission of adaptive media in performing handover between heterogeneous access networks

Life of this patent

Abstract

Claims13