Wireless communication method and wireless communication terminal

A wireless communication terminal comprising:

• a transceiver;
• and
• a processor,
• wherein the processor is configured to:
• receive, by using the transceiver, a physical frame for a transmission of data to each of a plurality of wireless communication terminals comprising the wireless communication terminal from a base wireless terminal,
• obtain, from the physical frame, a signaling field which signals information on a resource allocation to the plurality of wireless communication terminals and comprises a first field which represents a different type of information according to a Multi User (MU) transmission method which is used in a sub-frequency band corresponding to the first field, wherein the sub-frequency band corresponding to the first field is one of a plurality of sub-frequency bands which are included in a frequency band through which the physical frame is transmitted, wherein the first field has the same size regardless of the MU transmission method, wherein the first field represents whether the sub-frequency band corresponding to the first field is not allocated for the transmission of data to any of the plurality of wireless communication terminals,
• when Orthogonal Frequency Division Multiple Access (OFDMA) is used for the transmission of data to the plurality of wireless communication terminals, determine, based on the first field, a sub-frequency band which is allocated to the wireless communication terminal, and
• obtain, based on the determination, the data corresponding to the wireless communication terminal through the sub-frequency band which is allocated to the wireless communication terminal.

A base wireless communication terminal comprising:

• a transceiver;
• and
• a processor,
• wherein the processor is configured to:
• insert a signaling field which signals information on a resource allocation to a plurality of wireless communication terminals and comprises one or more first fields in a physical frame for transmission of data to each of the plurality of wireless communication terminals, wherein each of the one or more first fields represents a different type of information according to a Multi User(MU) transmission method which is used in a sub-frequency band corresponding to each of the one or more first fields, wherein the sub-frequency band corresponding to each of the one or more first fields is one of a plurality of sub-frequency bands which are included in a frequency band through which the physical frame is transmitted, wherein each of the one or more first fields has the same size regardless of the MU transmission method,
• when the base wireless terminal uses Orthogonal Frequency Division Multiple Access (OFDMA) for the data transmission to the plurality of wireless communication terminals, allocate a sub-frequency band to each of the plurality of wireless the plurality of wireless communication terminals and set a value of each of the one or more first fields based on the allocated sub-frequency band to each of the plurality of wireless the plurality of wireless communication terminals and whether the sub-frequency band corresponding to the first field is not allocated for the transmission of data to any of the plurality of wireless communication terminals, and
• transmit the data to the each of wireless communication terminal through the allocated sub-frequency band to each of the plurality of wireless communication terminals.

An operation method of a wireless communication terminal, the operation method comprising:

• receiving a physical frame for a transmission of data to each of a plurality of wireless communication terminals comprising the wireless communication terminal from a base wireless terminal,
• obtaining, from the physical frame, a signaling field which signals information on a resource allocation to the plurality of wireless communication terminals and comprises a first field which represents a different type of information according to a Multi User(MU) transmission method which is used in a sub-frequency band corresponding to the first field, wherein the sub-frequency band corresponding to the first field is one of a plurality of sub-frequency bands which are included in a frequency band through which the physical frame is transmitted, wherein the first field has the same size regardless of the MU transmission method, wherein the first field represents whether the sub-frequency band corresponding to the first field is not allocated for the transmission of data to any of the plurality of wireless communication terminals, from the physical frame, and
• when Orthogonal Frequency Division Multiple Access (OFDMA) is used for the transmission of data to the plurality of wireless communication terminals, determining, based on the first field, a sub-frequency band which is allocated to the wireless communication terminal, and
• obtaining, based on the determination, the data corresponding to the wireless communication terminal through the sub-frequency band which is allocated to the wireless communication terminal.