BANDWIDTH CONTROLLING METHOD AND DEVICE, EVOLVED PACKET SYSTEM AND GATEWAY

摘要

A bandwidth controlling method which is used in packet data network gateway is provided. The method includes the following steps: a user sends an activation request which carries a quality of service parameter to a packet data network gateway; after receiving the activation request which carries the quality of service parameter, the packet data network gateway calculates uplink and downlink bandwidth threshold values according to the quality of service parameter; the packet data network gateway sends an activation response to the user, wherein the activation response carries an initially negotiated quality of service parameter; the user sends a data message to the packet data network gateway after receiving the activation response sent from the packet data network gateway; the packet data network gateway controls the transfer of the data message according to the uplink and downlink bandwidth threshold values after receiving the data message. Also a corresponding device, a gateway and an evolved packet system are provided by the invention. User experience can be improved effectively, time delay of service establishment can be reduced and always-online for the user can be realized actually by the invention.