Method and device for setting priority of data transmission

A method performed by a core network entity for processing low priority data, the method comprising:

• transmitting, to a terminal, configuration information for a first priority connection for data transmission and a second priority connection for data transmission;
• configuring the first priority connection with the terminal based on the configuration information;
• receiving, from the terminal, a first priority data using the first priority connection based on the configuration information;
• receiving, from the terminal, a request message for overriding the first priority connection to the second priority connection during the first priority connection in case that a second priority data to be transmitted to a network occurs at the terminal during the first priority connection, wherein second priority data is associated with the second priority connection and the request message is based on the configuration information transmitted to the terminal;
• determining whether the terminal is allowed to override the first priority connection to the second priority connection based on the configuration information of the terminal;
• transmitting, to the terminal, a response message for accepting the overriding of the first priority connection to the second priority connection, in case that the terminal is allowed to override the first priority connection to the second priority connection;
• and
• receiving, from the terminal, the second priority data using the second priority connection overridden from the first priority connection based on the response message.

An apparatus for transmitting data to a network, the apparatus comprising:

• a radio communication unit configured to transmit and receive a signal;
• and
• a control unit configured to control:
• receiving, from the network, configuration information for a first priority connection for data transmission and a second priority connection for data transmission,
• configure the first priority connection based on the configuration information,
• transmitting, to the network, a first priority data using a first priority connection based on the configuration information,
• identifying that a second priority data to be transmitted to the network occurs at the apparatus during the first priority connection, the second priority data being associated with the second priority connection,
• transmitting, to the network, a request message for overriding the first priority connection to a second priority connection based on the configuration information received from the network, in case that the second priority data to be transmitted occurs during the first priority connection,
• receiving, from the network, a response message for accepting the overriding of the first priority connection to the second priority connection from the network as a response to the transmitting the request message, in case that the apparatus is allowed to override the first priority connection to the second priority connection,
• override the first priority connection to the second priority connection based on the response message, and
• transmitting, to the network, the second priority data using the second priority connection as a response to the receiving the response message.

An apparatus for processing data received from a terminal configured to transmit low priority data, the apparatus comprising:

• an interface unit configured to transmit and receive a signal;
• and
• a control unit configured to control:
• transmitting, to the terminal, configuration information for a first priority connection for data transmission and a second priority connection for data transmission,
• configure the first priority connection with the terminal based on the configuration information,
• receiving, from the terminal, a first priority data using the first priority connection based on the configuration information,
• receiving a request message for overriding the first priority connection to a second priority connection during the first priority connection in case that a second priority data to be transmitted to a network occurs at the terminal during the first priority connection, wherein the second priority data is associated with the second priority connection and the request message is based on configuration information received by the terminal from the apparatus,
• determining whether the terminal is allowed to override the first priority connection to the second priority connection based on the configuration information of the terminal,
• transmitting, to the terminal, a response message for accepting the overriding of the second priority connection to the second priority connection, in case that the terminal is allowed to override the first priority connection to the second priority connection, and
• receiving, from the terminal, the second priority data using the second priority connection overridden from the first priority connection based on the response message.