Wireless communication method for transmitting ACK and wireless communication terminal using same
AssigneesWilus Institute of Standards and Technology Inc., SK Telecom Co., Ltd.
InventorsWoojin Ahn, Juhyung Son, Jinsam Kwak, Geonjung Ko
Life of this patent
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Abstract
Provided is a wireless communication terminal that communicates wirelessly. The wireless communication terminal includes a transceiver, and a processor. The processor is configured to receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver, and when receiving all MPDUs included in the A-MPDU, transmit to the originator a block ACK (BA) frame signaling that all MPDUs included in the A-MPDU are received without a bitmap indicating whether each MPDU included in the A-MPDU is received.
Claims8
A wireless communication terminal that is a recipient for receiving data, the wireless communication terminal comprising:
- a transceiver;
- and
- a processor,
- wherein the processor is configured to:
- receive an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator using the transceiver,
- when generating a block ACK (BA) frame to indicate that all MPDUs in the A-MPDU are received, set a value of a traffic identifier (TID) field of the BA frame, usable for indicating a TID of a MPDU to be acknowledged in the BA frame, to a predetermined first value and a value of an ACK type field of the BA frame to a predetermined second value, omit a bitmap indicating whether each MPDU included in the A-MPDU is received in the BA frame, and omit a Block ACK Starting Sequence Control field in the BA frame, wherein the predetermined first value is predetermined for indicating that all MPDUs in the A-MPDU are received, is a value that cannot be used as a value of TID of traffic of data transmission, and is limited to one of 8 to 14 and not 15 which indicates management MPDU (MMPDU), wherein the predetermined second value of the ACK type filed signals that the bitmap and Block ACK Starting Sequence Control field are omitted, and
- transmit to the originator the BA frame using the transceiver.
A wireless communication terminal that is an originator for transmitting data, the wireless communication terminal comprising:
- a transceiver;
- and
- a processor,
- wherein the processor is configured to:
- transmit an Aggregate-MAC Protocol Data Unit (A-MPDU) to a recipient using the transceiver,
- receive a block ACK (BA) frame from the recipient using the transceiver, wherein the BA frame includes a traffic identifier (TID) field usable for indicating a TID of a MPDU to be acknowledged in the BA frame, and
- when a value of the TID field of the BA frame is a predetermined first value and a value of an ACK type field of the BA frame is a predetermined second value, determine that the BA frame indicates that all MPDUs included in the A-MPDU are received and does not include a bitmap indicating whether each MPDU included in the A-MPDU is received,
- wherein the predetermined first value is predetermined for indicating that all MPDUs in the A-MPDU are received, is a value that cannot be used as a value of TID of traffic of data transmission, and is limited to one of 8 to 14 and not 15 which indicates management MPDU (MMPDU).
An operation method of a wireless communication terminal that is a recipient for receiving data, the method comprising:
- receiving an Aggregate-MAC Protocol Data Unit (A-MPDU) from an originator;
- and
- in response to the A-MPDU, generating a block ACK (BA) frame to indicate that all MPDUs in the A-MPDU are received,
- wherein the generating the BA frame comprises:
- setting a value of a traffic identifier (TID) field of the BA frame, usable for indicating a TID of a MPDU to be acknowledged in the BA frame, to a predetermined first value and a value of an ACK type field of the BA frame to a predetermined second value to signal that all MPDUs included in the A-MPDU are received, and omitting a bitmap indicating whether each MPDU included in the A-MPDU is received in the BA frame, wherein the predetermined first value is predetermined for indicating that all MPDUs in the A-MPDU are received, is a value that cannot be used as a value of TID of traffic of data transmission, and is limited to one of 8 to 14 and not 15 which indicates management MPDU (MMPDU), and
- transmitting to the originator the BAframe.
Dependencies are inferred from the claim text.