Apparatus and method for setting up QoS in a mobile communication system

A method for setting up a quality-of-service (QoS) in a mobile communication system including a mobile terminal (MT), an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and a packet data service node (PDSN) for exchanging packet data with the PCF and for connecting with an external network, the method comprising the steps of:

• receiving, by the PDSN, a new QoS setup request message including requested QoS information and packet filtering information from the external network;
• delivering, by the PDSN, the received new QoS setup request message to the AN;
• determining, by the AN, a granted QoS to be applied to a wireless session;
• transmitting, by the AN, a new QoS setup request message to the MT;
• transmitting, if the MT grants new QoS setup, a new QoS setup response message from the MT to the PDSN;
• storing, by the PDSN, the QoS information and the packet filtering information;
• and
• transmitting, by the PDSN, the new QoS setup response message to the external network.

A method for setting up a quality-of-service (QoS) in a packet data service node (PDSN) for a mobile communication system including a mobile terminal (MT), an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and the PDSN for exchanging packet data with the PCF and for connecting with an external network, the method comprising the steps of:

• receiving from the MT a resource reservation protocol (RSVP) message including requested QoS information and packet filtering information for a predetermined service;
• storing the received QoS information and packet filtering information;
• sending a request for new QoS setup to the AN, upon receiving packet data corresponding to the stored QoS information from the external network;
• and
• receiving a response to the new QoS setup request via the AN if the AN determines a granted QoS to be applied to a wireless session and sends a request for a new QoS setup to the MT, and the MT grants the new QoS setup.

A method for setting up a quality-of-service (QoS) in a packet data service node (PDSN) for a mobile communication system including a mobile terminal (MT), an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and the PDSN for exchanging packet data with the PCF and for connecting with an external network, the method comprising the steps of:

• receiving a new QoS setup request message including requested QoS information and packet filtering information from the external network, and delivering the received new QoS setup request message to the AN;
• receiving a new QoS setup response message from the MT;
• storing the QoS information and the packet filtering information;
• and
• transmitting the new QoS setup response message to the external network.

A method for setting up a quality-of-service (QoS) in a mobile terminal (MT) for a mobile communication system including the MT, an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and a packet data service node (PDSN) for exchanging packet data with the PCF and for connecting with an external network, the method comprising the steps of:

• generating a resource reservation protocol (RSVP) message including requested QoS information and packet filtering information for a predetermined service;
• transmitting the generated RSVP message to the PDSN;
• sending a request for a new QoS setup to the AN and receiving a new QoS setup request from the AN that determines a granted QoS to be applied to a wireless session, if the PDSN stores the QoS information and the packet filtering information and receives packet data corresponding to the stored QoS information from the external network;
• and
• sending a response to the new QoS setup request to the PDSN via the AN if the MT grants the new QoS setup.

A method for setting up a quality-of-service (QoS) in a mobile communication system including a mobile terminal (MT), an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and a packet data service node (PDSN) for exchanging packet data with the PCF and for connecting with an external network, the method comprising the steps of:

• delivering, by the PDSN, a new QoS setup request message including requested QoS information and packet filtering information received from the external network to the AN;
• receiving, from the AN, a new QoS setup request message that performs authentication in response to the QoS setup request and determines a granted QoS to be applied to a wireless session;
• transmitting, if the MT grants the new QoS setup, a new QoS setup response message from the MT to the PDSN;
• and
• storing, by the PDSN, the QoS information and the packet filtering information;
• and
• transmitting, by the PDSN, the new QoS setup response message to the external network.

An apparatus for setting up a quality-of-service (QoS) in a packet data service node (PDSN) for a mobile communication system including a mobile terminal (MT), an access network (AN) for performing packet communication with the MT, a packet control function (PCF) for controlling an exchange of packet data between the AN and the MT, and the PDSN for exchanging packet data with the PCF and for connecting with an external network, the apparatus comprising:

• a traffic filtering storage for storing packet filtering information and requested QoS information received from the MT;
• a packet handler for classifying a packet received from the external network;
• a session handler for performing a QoS setup if the packet received from the external network coincides with the packet filtering information stored in the traffic filtering storage;
• and
• a signaling handler for transmitting the packet to the MT.