Wireless communication method and wireless communication terminal
View Patent ↗Provided is a wireless communication terminal. The wireless communication terminal includes a transceiver configured to transmit and receive a wireless signal and a processor configured to control an operation of the wireless communication terminal. The processor collects data to be transmitted to a plurality of terminals, generates an aggregate-MAC protocol data unit for transmitting data to the plurality of terminals at the same time, and transmits the aggregate-MAC protocol data unit to the plurality of terminals.
1. A wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor receives, through the transceiver, a first control frame which reserves a channel for a transmission between a transmission terminal and a first plurality of wireless communication terminals and includes information on each of channels respectively allocated to each of the first plurality of wireless communication terminals, from the transmission terminal,
transmits, by using the transceiver, a second control frame in response to the first control frame through a channel allocated to the wireless communication terminal which is indicated by the information to the transmission terminal when at least one of terminal identifier fields included in the first control frame indicates the wireless communication terminal, wherein a receiver address of the first control frame is a group address which indicates a second plurality of wireless communication terminals including the first plurality of wireless communication terminals, wherein the terminal identifier fields include a plurality of association identifiers, wherein each of the plurality of association identifiers respectively identifies the each of the first plurality of wireless communication terminals, and
receives, through the transceiver, a data frame which is transmitted based on the second control frame, from the transmission terminal,
wherein the first control frame includes a duration field which is used for setting a network allocation vector for the transmission between the transmission terminal and the first plurality of wireless communication terminals.
2. The wireless communication terminal of claim 1 , wherein the processor transmits the second control frame to the transmission terminal, when the channel allocated to the wireless communication terminal is idle.
3. The wireless communication terminal of claim 2 , wherein the processor transmits the second control frame to the transmission terminal, when the channel allocated to the wireless communication terminal is idle for a predetermined time from a time point at which the first control frame is received.
4. The wireless communication terminal of claim 3 , wherein the predetermined time is a Short Inter-Frame Space(SIFS).
5. The wireless communication terminal of claim 1 , wherein the each of channels respectively allocated to each of the first plurality of wireless communication terminals are same each other.
6. A wireless communication terminal comprising:
a transceiver; and
a processor,
wherein the processor inserts, in a first control frame which reserves a channel for a transmission between the wireless communication terminal and a first plurality of wireless communication terminals, information on each of channels respectively allocated to each of the first plurality of wireless communication terminals,
sets a receiver address of the first control frame as a group address which indicates a second plurality of wireless communication terminals including the first plurality of wireless communication terminals,
inserts a plurality of association identifiers in terminal identifier fields of the first control frame, wherein each of the plurality of association identifiers respectively identifies the each of the first plurality of wireless communication terminals,
transmits, through the transceiver, the first control frame, to the first plurality of wireless communication terminals,
receives, through the transceiver, a second control frame which is a response to the first control frame, from at least one of the first plurality of wireless communication terminals, and
transmits, through the transceiver, a data frame based on the second control frame,
wherein the first control frame includes a duration field which is used for setting a network allocation vector for the transmission between the wireless communication terminal and the first plurality of wireless communication terminals.
7. The wireless communication terminal of claim 6 , wherein the each of channels respectively allocated to each of the first plurality of wireless communication terminals are same each other.
8. An operation method of a wireless communication terminal comprising:
receiving a first control frame which reserves a channel for a transmission between a transmission terminal and a first plurality of wireless communication terminals and includes information on each of channels respectively allocated to each of the first plurality of wireless communication terminals, from the transmission terminal,
transmitting a second control frame in response to the first control frame through a channel allocated to the wireless communication terminal which is indicated by the information to the transmission terminal, when at least one of terminal identifier fields included in the first control frame indicates the wireless communication terminal, wherein a receiver address of the first control frame is a group address which indicates a second plurality of wireless communication terminals including the first plurality of wireless communication terminals, wherein the terminal identifier fields include a plurality of association identifiers, wherein each of the plurality of association identifiers respectively identifies the each of the first plurality of wireless communication terminals, and
receiving a data frame which is transmitted based on the second control frame, from the transmission terminal,
wherein the first control frame includes a duration field which is used for setting a network allocation vector for the transmission between the transmission terminal and the first plurality of wireless communication terminals.
9. The operation method of claim 8 , wherein the transmitting the second frame through the channel allocated to the wireless communication terminal comprises,
transmitting the second control frame to the transmission terminal, when the channel allocated to the wireless communication terminal is idle.
10. The operation method of claim 9 , wherein the transmitting the second frame to the transmission terminal, when the channel allocated to the wireless communication terminal is idle, comprises
transmitting the second control frame to the transmission terminal, when the channel allocated to the wireless communication terminal is idle for a predetermined time from a time point at which the first control frame is received.
11. The operation method of claim 10 , wherein the predetermined time is a Short Inter-Frame Space(SIFS).
12. The operation method of claim 8 , wherein the each of channels respectively allocated to each of the first plurality of wireless communication terminals are same each other.