Method and apparatus for receiving frame
First Claim
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1. A method for receiving a frame in a wireless local area network (WLAN), the method comprising:
- transmitting, by an access point (AP), a plurality of downlink physical layer protocol data units (DL PPDUs) including a plurality of downlink data for a plurality of stations (STAs) to the plurality of STAs based on orthogonal frequency division multiple access (OFDMA),wherein the plurality of DL PPDUs are transmitted based on a plurality of first subbands on a primary channel and a plurality of second subbands on a secondary channel,wherein the plurality of DL PPDUs include a plurality of block acknowledgement (ACK) transmission control fields for the plurality of STAs,wherein each of the plurality of block ACK transmission control fields includes a transmission resource field and an ACK policy field,wherein the transmission resource field includes information on whether an uplink channel allocated for a block ACK frame to be transmitted by a corresponding STA is the primary channel or the secondary channel, andwherein the ACK policy field includes information on whether the block ACK frame to be transmitted by the corresponding STA is set to an immediate block ACK transmission policy or a delayed block ACK transmission policy; and
receiving, by the AP, from the plurality of STAs a plurality of block ACK frames that are transmitted based on the plurality of block ACK transmission control fields, wherein each of the plurality of block ACK frames includes ACK information for the plurality of downlink data.
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Abstract
Disclosed are a method and an apparatus for receiving a frame. A method for receiving a frame in a wireless LAN comprises the steps of: an AP transmitting, to a plurality of STAs, a downlink PPDU including downlink data for each of the plurality of STAs, through a plurality of channels; and the AP receiving, from each of the plurality of STAs, a plurality of block ACK frames transmitted based on a block ACK transmission control field, wherein the downlink PPDU includes the block ACK transmission control field, and wherein each of the plurality of block ACK frames may include ACK information related to downlink data.
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Citations
10 Claims
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1. A method for receiving a frame in a wireless local area network (WLAN), the method comprising:
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transmitting, by an access point (AP), a plurality of downlink physical layer protocol data units (DL PPDUs) including a plurality of downlink data for a plurality of stations (STAs) to the plurality of STAs based on orthogonal frequency division multiple access (OFDMA), wherein the plurality of DL PPDUs are transmitted based on a plurality of first subbands on a primary channel and a plurality of second subbands on a secondary channel, wherein the plurality of DL PPDUs include a plurality of block acknowledgement (ACK) transmission control fields for the plurality of STAs, wherein each of the plurality of block ACK transmission control fields includes a transmission resource field and an ACK policy field, wherein the transmission resource field includes information on whether an uplink channel allocated for a block ACK frame to be transmitted by a corresponding STA is the primary channel or the secondary channel, and wherein the ACK policy field includes information on whether the block ACK frame to be transmitted by the corresponding STA is set to an immediate block ACK transmission policy or a delayed block ACK transmission policy; and receiving, by the AP, from the plurality of STAs a plurality of block ACK frames that are transmitted based on the plurality of block ACK transmission control fields, wherein each of the plurality of block ACK frames includes ACK information for the plurality of downlink data. - View Dependent Claims (2, 3, 4, 5)
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6. An access point (AP) for transmitting a frame in a wireless local area network (WLAN), the AP comprising:
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a transceiver configured to transmit or receive radio signals; and a processor operatively connected to the transceiver, wherein the processor is configured to; control the transceiver to transmit a plurality of downlink physical layer protocol data units (DL PPDUs) including a plurality of downlink data for a plurality of stations (STAs) to the plurality of STAs based on orthogonal frequency division multiple access (OFDMA), wherein the plurality of DL PPDUs are transmitted based on a plurality of first subbands on a primary channel and a plurality of second subbands on a secondary channel, wherein the plurality of DL PPDUs include a plurality of block acknowledgement (ACK) transmission control fields for the plurality of STAs, wherein each of the plurality of block ACK transmission control fields includes a transmission resource field and an ACK policy field, wherein the transmission resource field includes information on whether an uplink channel allocated for a block ACK frame to be transmitted by a corresponding STA is the primary channel or the secondary channel, and wherein the ACK policy field includes information on whether the block ACK frame to be transmitted by the corresponding STA is set to an immediate block ACK transmission policy or a delayed block ACK transmission policy, and control the transceiver to receive from the plurality of STAs a plurality of block ACK frames that are transmitted based on the plurality of block ACK transmission control fields, wherein each of the plurality of block ACK frames includes ACK information for the plurality of downlink data. - View Dependent Claims (7, 8, 9, 10)
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Specification