Wireless communication method using fragmentation and wireless communication terminal using same
Provided is a wireless communication terminal that communicates wirelessly. The terminal includes: a transceiver; and a processor. The processor is configured to transmit first information on a fragmentation level to be used for data to be transmitted to a recipient by using the transceiver in an add Block ACK (ADDBA) setup procedure.
1. A wireless communication terminal that is an originator for transmitting data, the wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor is configured to:
insert first information into 2 bits field of an add Block ACK (ADDBA) request frame and a value of a specific Traffic Identifier (TID) into a TID field of the ADDBA request frame, wherein the first information indicates a fragmentation level to be used when the wireless communication terminal transmits data corresponding to the specific TID to a recipient,
transmit the ADDBA request frame to the recipient by using the transceiver,
receive an ADDBA response frame from the recipient by using the transceiver,
obtain second information from 2 bits field of the ADDBA response frame and a value of a TID field of the ADDBA response frame, wherein the second information indicates a fragmentation level of a fragment that the recipient is capable of receiving when the recipient receives the data corresponding to a TID which corresponds to the value of the TID field of the ADDBA response frame, and
when the specific TID corresponds to the value of the TID field of the ADDBA response frame, fragment the data corresponding to the specific TID at a fragmentation level equal to or lower than the fragmentation level indicated by the second information,
wherein the fragmentation level indicates a degree of fragmentation and is divided into four levels, and one of the four levels is a level in which a fragmentation of the data is not allowed.
2. A method of operating a wireless communication terminal that is an originator for transmitting data, the method comprising:
inserting first information into 2 bits field of an add block ACK (ADDBA) request frame and a value of a specific Traffic Identifier (TID) into a TID field of the ADDBA request frame, wherein the first information indicates a fragmentation level to be used when the wireless communication terminal transmits data corresponding to the specific TID to a recipient; and
transmitting the ADDBA request frame to the recipient,
receiving an ADDBA response frame from the recipient,
obtaining second information from 2 bits field of the ADDBA response frame and a value of a TID field of the ADDBA response frame, wherein the second information indicates a fragmentation level of a fragment that the recipient is capable of receiving when the recipient receives the data corresponding to a TID which corresponds to the value of the TID field of the ADDBA response frame, and
when the specific TID corresponds to the value of the TID field of the ADDBA response frame, fragmenting the data corresponding to the specific TID at a fragmentation level equal to or lower than the fragmentation level indicated by the second information,
wherein the fragmentation level indicates a degree of fragmentation and is divided into four levels, and one of the four levels is a level in which a fragmentation of the data is not allowed.