Logical channel mapping to grant free transmission

A terminal comprising:

• a transceiver;
• and
• a controller configured to:
• receive, from a base station via the transceiver, a first radio resource control (RRC) message comprising:
• a parameter indicating that data of a first logical channel, of a plurality of logical channels, is allowed to be transmitted using a configured periodic grant of a first type,
• an identifier (ID) of a logical channel group to which the first logical channel belongs,
• a timing offset associated with a system frame number and information on a start symbol for identifying a resource to be allocated by the configured periodic grant of the first type, and
• a first periodicity of the configured periodic grant of the first type;
• activate the configured periodic grant of the first type based on the received first RRC message;
• multiplex the data of the first logical channel onto one or more transport blocks;
• and
• transmit, to the base station via the transceiver, the one or more transport blocks based on the activated configured periodic grant of the first type.

A method performed by a base station in a wireless communication system, the method comprising:

• transmitting, to a terminal, a first radio resource control (RRC) message comprising:
• a parameter indicating that data of a first logical channel, of a plurality of logical channels, is allowed to be transmitted using a configured periodic grant of a first type,
• an identifier (ID) of a logical channel group to which the first logical channel belongs,
• a timing offset associated with a system frame number and information on a start symbol for identifying a resource to be allocated by the configured periodic grant of the first type, and
• a first periodicity of the configured periodic grant of the first type;
• activating the configured periodic grant of the first type based on the transmitted first RRC message;
• receiving, from the terminal, one or more transport blocks based on the resource of the configured periodic grant of the first type;
• and
• demultiplexing the one or more transport blocks into the data of the first logical channel.