# US 2017/0288930 A1 · Method for transmitting and receiving data in wireless local area network and apparatus for the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0288930 A1 - Document ID: US20170288930A1 - Status: Published application - Kind: A1 - Application number: 15/623,090 - Filed: 2017-06-14 - Published: 2017-10-05 - Earliest claimed: 2014-03-20 - Assignees: Newracom, Inc. - Applicants: Newracom, Inc. - Inventors: Jong-Ee OH; Yongjin KWON; Hyungu PARK; Je-Hun LEE; Hong Soog KIM; Hyoung Jin KWON - Web page: https://patentgrep.com/patent/US20170288930A1 ## CPC - H04L 27/2602: {Signal structure} - H04L 5/0044: {Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 27/2626: {Arrangements specific to the transmitter only} - H04L 5/0023: {Time-frequency-space} - H04L 27/2647: {Arrangements specific to the receiver only (equalisation H04L27/01)} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Disclosed are a method and an apparatus for transmitting and receiving data in a Wireless Local Area Network (WLAN) system. A method for transmitting data may comprise generating a physical layer (PHY) frame including a payload in which a plurality of Medium Access Control protocol data units (MPDUs) are multiplexed; and transmitting the PHY frame, wherein the PHY frame includes information on subcarriers occupied by each of the plurality of MPDUs in an Orthogonal Frequency Division Multiplexing (OFDM) symbol of the payload. Therefore, data transmission efficiency in a WLAN system can be enhanced. ## Claims ### Claim 1 A method of transmitting acknowledgement in a wireless communications system, receiving a frame from an access point, wherein the frame elicits an acknowledgement, generating the acknowledgement in response to receiving the frame, wherein the acknowledgement comprising: i) an traffic identifier (TID) information when the acknowledgment is associated with a response to a single MPDU (MAC (Medium Access Control) Protocol Data Unit), wherein the TID information is repeated for each of TIDs associated with acknowledgment to a plurality of single MPDU, and ii) one or more block acknowledgement (BA) information when the acknowledgement is associated with a response to an A-MPDU (Aggregate MPDU), wherein the BA information is repeated for each of TIDs associated with acknowledgement to the A-MPDU, each of the BA information comprises a TID information, a starting sequence control information and a BA bitmap, and transmitting the acknowledgement to the access point. ### Claim 2 (depends on 1) The method of claim 1, wherein the frame comprises two or more MPDUs which belong to two or more TIDs. ### Claim 3 (depends on 1) The method of claim 1, wherein the single MPDU solicits an immediate acknowledgement. ### Claim 4 (depends on 1) The method of claim 1, wherein the A-MPDU solicits an immediate block acknowledgement. ### Claim 5 (depends on 1) The method of claim 1, where the frame is a BlockAck Request frame. ### Claim 6 (depends on 1) The method of claim 1, wherein a number of TID information is identical to a number of TID associated with the acknowledgement to the frame. ### Claim 7 (depends on 1) The method of claim 1, wherein the BA bitmap comprises a bitmap indicating whether each of corresponding MPDUs is successfully received or not. ### Claim 8 (depends on 1) The method of claim 1, wherein the starting sequence control information is indicative of a sequence number of a first MPDU among MPDUs indicated by the BA bitmap. ### Claim 9 A station for facilitating communication in a wireless network, the station comprising: one or more memories; and one or more processors coupled to the one or more memories, the one or more processors configured to cause: receiving a frame from an access point, wherein the frame elicits an acknowledgement; generating the acknowledgement in response to receiving the frame, wherein the acknowledgement comprising: i) an traffic identifier (TID) information when the acknowledgment is associated with a response to a single MPDU (MAC (Medium Access Control) Protocol Data Unit), and ii) a block acknowledgement (BA) information when the acknowledgement is associated with a response to an A-MPDU (Aggregate MPDU), the BA information comprises a TID information, a starting sequence control information and a BA bitmap, and transmitting the acknowledgement to the access point, wherein the TID information or the BA information is repeated for each of TIDs associated with acknowledgement to the frame. ### Claim 10 (depends on 9) The station of claim 9, wherein the frame comprises two or more MPDUs which belong to two or more TIDs. ### Claim 11 (depends on 9) The station of claim 9, wherein the single MPDU solicits an immediate acknowledgement. ### Claim 12 (depends on 9) The station of claim 9, wherein the A-MPDU solicits an immediate block acknowledgement. ### Claim 13 (depends on 9) The station of claim 9, where the frame is a BlockAck Request frame. ### Claim 14 (depends on 9) The station of claim 9, wherein a number of TID information is identical to a number of TID associated with the acknowledgement to the frame. ### Claim 15 (depends on 9) The station of claim 9, wherein the BA bitmap comprises a bitmap indicating whether each of corresponding MPDUs is successfully received or not. ### Claim 16 (depends on 9) The station of claim 9, wherein the starting sequence control information is indicative of a sequence number of a first MPDU among MPDUs indicated by the BA bitmap. ### Claim 17 A computer-implemented method of facilitating communication in a wireless network, the method comprising: receiving a frame from an access point, wherein the frame elicits an acknowledgement; generating the acknowledgement in response to receiving the frame, wherein the acknowledgement comprising: i) an traffic identifier (TID) information when the acknowledgment is associated with a response to a single MPDU (MAC (Medium Access Control) Protocol Data Unit), and ii) a block acknowledgement (BA) information when the acknowledgement is associated with a response to an A-MPDU (Aggregate MPDU), the BA information comprises a TID information, a starting sequence control information and a BA bitmap, and transmitting the acknowledgement to the access point, wherein the TID information or the BA information is repeated for each of TIDs associated with acknowledgement to the frame. ### Claim 18 (depends on 17) The method of claim 17, wherein the frame comprises two or more MPDUs which belong to two or more TIDs. ### Claim 19 (depends on 17) The method of claim 17, wherein a number of TID information is identical to a number of TID associated with the acknowledgement to the frame.