Distinguishing between quality of service management frames (qmfs) and non-qmfs in protocol version 1 (pv1)

Patent metadata

Field	Value
Publication number	US-2022038944-A1
Application number	US-202117389102-A
Country	US
Kind code	A1
Filing date	Jul 29, 2021
Priority date	Jul 31, 2020
Publication date	Feb 3, 2022
Grant date	—

Abstract

A method by a wireless transmitting device for distinguishing between a quality of service (QoS) management frame and a non-QoS management frame is described. The method includes generating a frame that includes a frame header, wherein the frame header includes a frame control field, wherein the frame control field includes a partial traffic identifier or subtype (PTID/subtype) subfield, wherein the PTID/subtype subfield indicates whether the frame is a quality of service (QoS) management frame or a non-QoS management frame and transmitting the frame through a wireless medium.

First claim

What is claimed is:

1 . A method by a wireless transmitting device for distinguishing between a quality of service (QoS) management frame and a non-QoS management frame, the method comprising:
generating a frame that includes a frame header, wherein the frame header includes a frame control field, wherein the frame control field includes a partial traffic identifier or subtype (PTID/subtype) subfield, wherein the PTID/subtype subfield indicates whether the frame is a quality of service (QoS) management frame or a non-QoS management frame; and transmitting the frame through a wireless medium.

2 . The method of claim 1 , wherein the PTID/subtype subfield occupies bits B5 to B7 of the frame control field.

3 . The method of claim 2 , wherein a value included in the PTID/subtype subfield being set to binary ‘100’ or binary ‘101’ indicates that the frame is a QoS management frame.

4 . The method of claim 2 , wherein a value included in the PTID/subtype subfield being set to binary ‘000’ or binary ‘001’ indicates that the frame is a non-QoS management frame.

5 . The method of claim 1 , wherein the frame is a protocol version 1 (PV1) frame, wherein the frame control field does not include a to distribution system (To DS) subfield.

6 . The method of claim 1 , wherein the frame header further includes a sequence control field, wherein the sequence control field includes a sequence number subfield, wherein when the PTID/subtype subfield indicates that the frame is a QoS management frame, the sequence number subfield includes a first subfield indicating a 10-bit sequence number of the frame and a second subfield indicating an access category index (ACI) of the frame.

7 . The method of claim 6 , wherein the first subfield occupies bits B4 to B13 of the sequence control field and the second subfield occupies bits B14 and B15 of the sequence control field.

8 . The method of claim 1 , wherein the frame header further includes a sequence control field, wherein the sequence control field includes a sequence number subfield, wherein when the PTID/subtype subfield indicates that the frame is a non-QoS management frame, the sequence number subfield indicates a 12-bit sequence number of the frame.

9 . A method by a wireless receiving device for distinguishing between a quality of service (QoS) management frame and a non-QoS management frame, the method comprising:
receiving a frame that includes a frame header, wherein the frame header includes a frame control field, wherein the frame control field includes a partial traffic identifier or subtype (PTID/subtype) subfield, wherein the PTID/subtype subfield indicates whether the frame is a quality of service (QoS) management frame or a non-QoS management frame; and determining whether the frame is a QoS management frame or a non-QoS management frame based on the PTID/subtype subfield.

10 . The method of claim 9 , wherein the PTID/subtype subfield occupies bits B5 to B7 of the frame control field.

11 . The method of claim 9 , wherein the frame is determined to be a QoS management frame if the PTID/subtype subfield includes a value of binary ‘100’ or binary ‘101’.

12 . The method of claim 9 , wherein the frame is determined to be a non-QoS management frame if the PTID/subtype subfield includes a value of binary ‘000’ or binary ‘001’.

13 . The method of claim 9 , wherein the frame is a protocol version 1 (PV1) frame, wherein the frame control field does not include a to distribution system (To DS) subfield.

14 . The method of claim 9 , wherein the frame header further includes a sequence control field, wherein the sequence control field includes a sequence number subfield, wherein the method further comprises:
responsive to a determination that the PTID/subtype subfield indicates that the frame is a QoS management frame, interpreting the sequence number subfield as including a first subfield indicating a 10-bit sequence number of the frame and a second subfield indicating an access category index (ACI) of the frame.

15 . The method of claim 14 , wherein the first subfield occupies bits B4 to B13 of the sequence control field and the second subfield occupies bits B14 and B15 of the sequence control field.

16 . The method of claim 9 , wherein the frame header further includes a sequence control field, wherein the sequence control field includes a sequence number subfield, wherein the method further comprises:
responsive to a determination that the PTID/subtype subfield indicates that the frame is a non-QoS management frame, interpreting the sequence number subfield as indicating a 12-bit sequence number of the frame.

17 . A method by a wireless transmitting device for indicating a partial traffic identifier (PTID) or an access category index (ACI) in a header compression element, the method comprising:
generating a frame that includes the header compression element, wherein the header compression element includes a CTR with CBC-MAC protocol (CCMP) update field, wherein the CCMP update field includes a first subfield indicating a PTID of QoS data frames or an ACI of QoS management frames and a second subfield indicating whether the first subfield indicates the PTID of QoS data frames or not; and transmitting the frame through a wireless medium.

18 . The method of claim 17 , wherein the PTID of QoS data frames corresponds to the three least significant bits of a traffic identifier (TID) of QoS data frames.

19 . The method of claim 17 , wherein when the second subfield indicates that the first subfield does not indicate the PTID of QoS data frames, the first subfield indicates the ACI of QoS management frames, wherein the first subfield includes two bits to indicate the ACI of QoS management frames and one reserved bit.

20 . The method of claim 17 , wherein the first subfield occupies bits B34 to B36 of the CCMP update field and the second subfield occupies bit B37 of the CCMP update field.

Assignees

• Newracom Inc

Inventors

• Won Junyoun
• Noh Yujin
• LEE Joonsoo
• Jung Hyun Sik
• Park Hyungu

Classifications

• H04L45/66

  Layer 2 routing, e.g. in Ethernet based MAN's · CPC title

• H04W28/0268 Primary

  using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] (negotiating SLA or negotiating QoS H04W28/24) · CPC title

• H04L47/34

  ensuring sequence integrity, e.g. using sequence numbers · CPC title

• H04L69/04

  Protocols for data compression, e.g. ROHC · CPC title

• H04L69/22 Primary

  Parsing or analysis of headers · CPC title