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US 12,120,763 B2Granted
Mapping of TID and link in multi-link
AssigneeLG Electronics Inc.
InventorsInsun Jang, Jeongki Kim, Jinsoo Choi, Suhwook Kim, Sungjin Park, Taewon Song
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Abstract
In a wireless local area network (LAN) system, a station (STA) may transmit a first physical protocol data unit (PPDU) including information indicating that a first traffic identifier (TID) is mapped to a first link and a second TID is mapped to a second link. The STA may transmit traffic pertaining to the first TID through only the first link, and traffic pertaining to the second TID through only the second link.
Claims15
A method in a wireless local area network (WLAN) system, the method comprising:
- transmitting, by a first multilink device (MLD) to a second MLD, a management frame comprising a multi-link element and a Traffic Identifier (TID)-to-link mapping element,
- wherein the multi-link element includes a control field related to whether TID-to-link mapping is supported and a value of the control field is set based on whether the TID-to-link mapping is supported, and
- wherein the TID-to-link mapping element includes a first link mapping information field indicating at least one link on which a frame belonging to a first TID is allowed to be transmitted, and a value of the first TID is one of zero (0) to seven (7);
- transmitting, by the first MLD to the second MLD, an Add Block Acknowledgment (ADDBA) request frame indicating the first TID for which a block acknowledgment (BA) agreement is being set up;
- and
- in response to the ADDBA request frame, receiving, by the first MLD from the second MLD, an ADDBA response frame,
- wherein an BA agreement for the first TID is established between the first MLD and the second MLD based on the ADDBA request frame and the ADDBA response frame, and
- wherein based on the BA agreement for the first TID, a data frame for the first TID is exchanged between the first MLD and the second MLD on any link to which the first TID is mapped.
5 more elements
A first multilink device (MLD) in a wireless local area network (WLAN) system, comprising:
- a memory;
- and
- a processor operatively coupled to the memory,
- wherein the processor is adapted to:
- transmit, to a second MLD, a management frame comprising a multi-link element and a Traffic Identifier (TID)-to-link mapping element,
- wherein the multi-link element includes a control field related to whether TID-to-link mapping is supported and a value of the control field is set based on whether the TID-to-link mapping is supported, and
- wherein the TID-to-link mapping element includes a first link mapping information field indicating at least one link on which a frame belonging to the first TID is allowed to be transmitted, and a value of the first TID is one of zero (0) to seven (7);
- transmit, to the second MLD, an Add Block Acknowledgment (ADDBA) request frame indicating the first TID for which a block acknowledgment (BA) agreement is being set up;
- and
- in response to the ADDBA request frame, receive, from the second MLD, an ADDBA response frame,
- wherein an BA agreement for the first TID is established between the first MLD and the second MLD based on the ADDBA request frame and the ADDBA response frame, and
- wherein based on the BA agreement for the first TID, a data frame for the first TID is exchanged between the first MLD and the second MLD on any link to which the first TID is mapped.
9 more elements
A first multilink device (MLD) in a wireless local area network (WLAN) system, comprising:
- a memory;
- and
- a processor operatively coupled to the memory,
- wherein the processor is adapted to:
- receive, from a second MLD, a management frame comprising a multi-link element and a Traffic Identifier (TID)-to-link mapping element,
- wherein the multi-link element includes a control field related to whether TID-to-link mapping is supported and a value of the control field is set based on whether the TID-to-link mapping is supported, and
- wherein the TID-to-link mapping element includes a first link mapping information field indicating at least one link on which a frame belonging to the first TID is allowed to be transmitted;
- receive, from the second MLD, an Add Block Acknowledgment (ADDBA) request frame indicating the first TID for which a block acknowledgment (BA) agreement is being set up;
- and
- in response to the ADDBA request frame, transmit, to the second MLD, an ADDBA response frame,
- wherein an BA agreement for the first TID is established between the first MLD and the second MLD based on the ADDBA request frame and the ADDBA response frame, and
- wherein based on the BA agreement for the first TID, a data frame for the first TID is exchanged between the first MLD and the second MLD on any link to which the first TID is mapped.
9 more elements
Dependencies are inferred from the claim text.