Method and device for restricted access window-based channel access in WLAN system
First Claim
1. A method for performing channel access by a station (STA) in a wireless communication system, the method comprising:
- receiving restricted access window (RAW) cross boundary transmission allowance (CBTA) information and slot CBTA information from an access point (AP) when a RAW is allocated to the STA,wherein the RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different RAWs, andwherein the slot CBTA information indicates whether or not channel access is allowed beyond a boundary between different slots of the RAW; and
performing transmission with the AP based on the RAW CBTA information,wherein, when the slot CBTA information indicates granting of channel access beyond the boundary between the different slots, and the RAW CBTA information is set to a first value that indicates that channel access is allowed beyond the boundary between the different RAWs, transmission of the STA extended across the boundary between the different RAWs is permitted.
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Abstract
The present invention relates to a wireless communication system. More particularly, a method and a device for restricted access window-based channel access in a WLAN system are disclosed. The method whereby a station (STA) performs channel access in a wireless communication system according to one embodiment of the present invention may comprise the steps of: receiving restricted access window (RAW) cross-border transmission allowance (CBTA) information from an access point (AP) in case an RAW is allocated to the STA; and performing transmission by the STA on the basis of the RAW CBTA information. In case the RAW CBTA information is configured as a first value, transmission by the STA beyond the border of the RAW may be allowed.
10 Citations
14 Claims
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1. A method for performing channel access by a station (STA) in a wireless communication system, the method comprising:
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receiving restricted access window (RAW) cross boundary transmission allowance (CBTA) information and slot CBTA information from an access point (AP) when a RAW is allocated to the STA, wherein the RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different RAWs, and wherein the slot CBTA information indicates whether or not channel access is allowed beyond a boundary between different slots of the RAW; and performing transmission with the AP based on the RAW CBTA information, wherein, when the slot CBTA information indicates granting of channel access beyond the boundary between the different slots, and the RAW CBTA information is set to a first value that indicates that channel access is allowed beyond the boundary between the different RAWs, transmission of the STA extended across the boundary between the different RAWs is permitted. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method for supporting channel access of a station (STA) by an access point (AP) in a wireless communication system, the method comprising:
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transmitting restricted access window (RAW) cross boundary transmission allowance (CBTA) information and slot CBTA information to the STA when a RAW is allocated to the STA, wherein the RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different RAWs, and wherein the slot RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different slots of the RAW; and performing transmission with the STA based on the RAW CBTA information, wherein, when the slot CBTA information indicates granting of channel access beyond the boundary between the different slots, and the RAW CBTA information is set to a first value that indicates that channel access is allowed beyond the boundary between the different RAWs, transmission of the STA extended across the boundary between the different RAWs is permitted.
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13. A station (STA) for performing channel access in a wireless communication system, the STA comprising:
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a transceiver; and a processor, wherein the processor is configured to; control the transceiver to receive restricted access window (RAW) cross boundary transmission allowance (CBTA) information and slot CBTA information from an access point (AP) when a RAW is allocated to the STA, wherein the RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different RAWs, and wherein the slot CBTA information indicates whether or not channel access is allowed beyond a boundary between different slots of the RAW; and control the transceiver to perform transmission with the AP based on the RAW CBTA information, and wherein, when the slot CBTA information indicates granting of channel access beyond the boundary between the different slots, and the RAW CBTA information is set to a first value that indicates that channel access is allowed beyond the boundary between the different RAWs, transmission of the STA extended across the boundary between the different RAWs is permitted.
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14. An access point (AP) for supporting channel access of a station (STA) in a wireless communication system, the AP comprising:
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a transceiver; and a processor, wherein the processor is configured to; control the transceiver to transmit restricted access window (RAW) cross boundary transmission allowance (CBTA) information and slot CBTA information to the STA when a RAW is allocated to the STA, wherein the RAW CBTA information indicates whether or not channel access is allowed beyond a boundary between different RAWs, and wherein the slot CBTA information indicates whether or not channel access is allowed beyond a boundary between different slots of the RAW; and control the transceiver to perform transmission with the STA based on the RAW CBTA information, and wherein, when the slot CBTA information indicates granting of channel access beyond the boundary between the different slots, and the RAW CBTA information is set to a first value that indicates that channel access is allowed beyond the boundary between the different RAWs, transmission of the STA extended across the boundary between the different RAWs is permitted.
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Specification