METHOD OF ACCESSING CHANNEL IN WIRELESS LOCAL AREA NETWORK SYSTEM
First Claim
1. A method for channel access by a terminal in a wireless local area network, the method comprising:
- transmitting, to an access point, an association request frame;
receiving, from the access point, an association response frame to establish an association between the terminal and the access point, wherein the association response frame includes information indicating an association identifier (AID);
receiving, from the access point, a beacon frame including Traffic Indication Map (TIM) information;
transmitting, to the access point, a trigger frame in a slot allocated to the terminal, the slot being determined based on the TIM information and the AID; and
receiving, from the access point, in response to the trigger frame, an acknowledgement (ACK) frame including information indicating that a data transmission period starts for the terminal after a certain time.
2 Assignments
0 Petitions
Accused Products
Abstract
A method of accessing a channel in a wireless LAN system is disclosed. A method of accessing a channel in a terminal includes receiving TIM information included in a beacon transmitted by an access point, determining a channel access slot allocated to the terminal based on the TIM information, transmitting a data transmission request to the access point in the channel access slot, and receiving data transmission slot allocation information corresponding to the data transmission request from the access point. Accordingly, a time slot can be prevented from unnecessarily wasting.
7 Citations
10 Claims
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1. A method for channel access by a terminal in a wireless local area network, the method comprising:
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transmitting, to an access point, an association request frame; receiving, from the access point, an association response frame to establish an association between the terminal and the access point, wherein the association response frame includes information indicating an association identifier (AID); receiving, from the access point, a beacon frame including Traffic Indication Map (TIM) information; transmitting, to the access point, a trigger frame in a slot allocated to the terminal, the slot being determined based on the TIM information and the AID; and receiving, from the access point, in response to the trigger frame, an acknowledgement (ACK) frame including information indicating that a data transmission period starts for the terminal after a certain time. - View Dependent Claims (2, 3, 4)
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5. A method for supporting channel access of a terminal by an access point in a wireless local area network, the method comprising:
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receiving, from the terminal, an association request frame; transmitting, to the terminal, an association response frame to establish an association between the terminal and the access point, wherein the association response frame includes information indicating an association identifier (AID); transmitting a beacon frame including TIM (Traffic Indication Map) information; receiving a trigger frame from the terminal in a slot allocated to the terminal, the slot being determined based on the TIM information and the AID; and transmitting, to the terminal, in response to the trigger frame, an acknowledgement (ACK) frame including information indicating that a data transmission period starts for the terminal after a certain time. - View Dependent Claims (6, 7, 8)
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9. A terminal for performing channel access, the terminal comprising:
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a transceiver; and a processor, wherein the processor is configured to; transmit, to an access point, an association request frame; receive, from the access point, an association response frame to establish an association between the terminal and the access point, wherein the association response frame includes information indicating an association identifier (AID); receive, from the access point, a beacon frame including Traffic Indication Map (TIM) information; transmit, to the access point, a trigger frame in a slot allocated to the terminal, the slot being determined based on the TIM information and the AID; and receive, from the access point, in response to the trigger frame, an acknowledgement (ACK) frame including information indicating that a data transmission period starts for the terminal after a certain time.
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10. An access point for supporting channel access of a terminal, the access point comprising:
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a transceiver; and a processor, wherein the processor is configured to; receive, from the terminal, an association request frame; transmit, to the terminal, an association response frame to establish an association between the terminal and the access point, wherein the association response frame includes information indicating an association identifier (AID); transmit a beacon frame including TIM (Traffic Indication Map) information; receive a trigger frame from the terminal in a slot allocated to the terminal, the slot being determined based on the TIM information and the AID; and transmit, to the terminal, in response to the trigger frame, an acknowledgement (ACK) frame including information indicating that a data transmission period starts for the terminal after a certain time.
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Specification