Method for transmitting and receiving data in wireless local area network and apparatus for the same

Patent metadata

Field	Value
Publication number	US-2017288930-A1
Application number	US-201715623090-A
Country	US
Kind code	A1
Filing date	Jun 14, 2017
Priority date	Mar 20, 2014
Publication date	Oct 5, 2017
Grant date	—

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.

First claim

What is claimed is:

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.

2 . The method of claim 1 , wherein the frame comprises two or more MPDUs which belong to two or more TIDs.

3 . The method of claim 1 , wherein the single MPDU solicits an immediate acknowledgement.

4 . The method of claim 1 , wherein the A-MPDU solicits an immediate block acknowledgement.

5 . The method of claim 1 , where the frame is a BlockAck Request frame.

6 . 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.

7 . The method of claim 1 , wherein the BA bitmap comprises a bitmap indicating whether each of corresponding MPDUs is successfully received or not.

8 . 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.

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.

10 . The station of claim 9 , wherein the frame comprises two or more MPDUs which belong to two or more TIDs.

11 . The station of claim 9 , wherein the single MPDU solicits an immediate acknowledgement.

12 . The station of claim 9 , wherein the A-MPDU solicits an immediate block acknowledgement.

13 . The station of claim 9 , where the frame is a BlockAck Request frame.

14 . 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.

15 . The station of claim 9 , wherein the BA bitmap comprises a bitmap indicating whether each of corresponding MPDUs is successfully received or not.

16 . 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.

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.

18 . The method of claim 17 , wherein the frame comprises two or more MPDUs which belong to two or more TIDs.

19 . 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.

Assignees

• Newracom Inc

Inventors

• Oh Jong-Ee
• Kwon Yongjin
• Park Hyungu
• Lee Je-Hun
• Kim Hong Soog
• Kwon Hyoung Jin

Classifications

• H04L27/2647 Primary

  Arrangements specific to the receiver only (equalisation H04L27/01) · CPC title

• H04L27/2626

  Arrangements specific to the transmitter only · CPC title

• H04L27/2602 Primary

  Signal structure · CPC title

• H04L5/0023

  Time-frequency-space · CPC title

• H04L5/0094

  Indication of how sub-channels of the path are allocated · CPC title