A METHOD FOR SIGNALING INTERACTION OF ENSURING THE INTERNET PROTOCOL (IP) QUALITY OF SERVICE (QoS)

The invention claims a Internet protocol service quality signalling interacting method, the first method of CA wherein the support of source end user UA transmission service flow, transmit the quality of service QoS resource request to the bearing key-course of CA; The bearing key-course of the user service flow allocating resources, and current mapping to edge ER router according to resource allocation result; ER after receiving the mapping, used for the service flow distributed bearing mode according to resources for assigns, and perform a transmitting through the bearing key-course to CA. The invention claims a safety sheet AND QoS current signal for determining user service class's bearing mode, facilitated with independent bearing key-course network the distribution to bearing mode.