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

Patent metadata

Field	Value
Publication number	US-2023217299-A1
Application number	US-202318179285-A
Country	US
Kind code	A1
Filing date	Mar 6, 2023
Priority date	Jul 31, 2020
Publication date	Jul 6, 2023
Grant date	—

Abstract

A method by a wireless transmitting device is disclosed for indicating a partial traffic identifier (PTID) or an access category index (ACI) in a header compression element. The method includes generating a frame that includes the header compression element, wherein the header compression element includes a first subfield that is for indicating a PTID of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame. The method further includes transmitting the frame through a wireless medium.

First claim

What is claimed is:

1 . 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 first subfield that is for indicating a PTID of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame; and transmitting the frame through a wireless medium.

2 . The method of claim 1 , wherein the first subfield and the second subfield are included in a counter mode with cipher block chaining message authentication code protocol (CCMP) update field included in the header compression element.

3 . The method of claim 2 , wherein when the second subfield indicates that the first subfield indicates the PTID of the QoS data frame, the first subfield includes three bits that indicate the PTID of the QoS data frame.

4 . The method of claim 3 , wherein when the second subfield indicates that the first subfield indicates the ACI of the QoS management frame, the first subfield includes two bits that indicate the ACI of the QoS management frame and one reserved bit.

5 . The method of claim 4 , wherein the first subfield occupies bits B 34 to B 36 of the CCMP update field.

6 . The method of claim 5 , wherein the second subfield occupies bit B 37 of the CCMP update field.

7 . The method of claim 1 , wherein the wireless transmitting device supports separate sequence number spaces for Protocol Version 0 (PV0) QoS management frames and Protocol Version 1 (PV1) QoS management frames.

8 . The method of claim 7 , wherein the sequence number space for PV1 QoS management frames is indexed based on media access control (MAC) address and access category.

9 . A method by a wireless receiving device for determining a partial traffic identifier (PTID) or an access category index (ACI) from a header compression element, the method comprising:
receiving, through a wireless medium, a frame that includes the header compression element, wherein the header compression element includes a first subfield that is for indicating a PTID of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame; and determining whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame based on the second subfield.

10 . The method of claim 9 , further comprising:
interpreting the first subfield as indicating the PTID of the QoS data frame in response to determining, based on the second subfield, that the first subfield indicates the PTID of the QoS data frame.

11 . The method of claim 10 , wherein the first subfield is interpreted as including three bits that indicate the PTID of the QoS data frame.

12 . The method of claim 9 , further comprising:
interpreting the first subfield as indicating the ACI of the QoS management frame in response to determining, based on the second subfield, that the first subfield indicates the ACI of the QoS management frame.

13 . The method of claim 12 , wherein the first subfield is interpreted as including two bits that indicate the ACI of the QoS management frame and one reserved bit.

14 . The method of claim 9 , wherein the first subfield and the second subfield are included in a counter mode with cipher block chaining message authentication code protocol (CCMP) update field included in the header compression element.

15 . The method of claim 14 , wherein the first subfield occupies bits B 34 to B 36 of the CCMP update field and the second subfield occupies bit B 37 of the CCMP update field.

16 . The method of claim 9 , wherein the wireless receiving device implements separate receiver caches for Protocol Version 0 (PV0) QoS management frames and Protocol Version 1 (PV1) QoS management frames.

17 . The method of claim 16 , wherein entries of the receiver cache for PV1 QoS management frames are identified based on media access control (MAC) address, access category, sequence number, and fragment number.

18 . A wireless device comprising:
a radio frequency (RF) transceiver; a memory storing therein a set of instructions; and a processor coupled to the memory, wherein the set of instruction, when executed by the processor, causes the wireless device to:
generate a frame that includes a header compression element, wherein the header compression element includes a first subfield that is for indicating a partial traffic identifier (PTID) of a quality of service (QoS) data frame or an ACI of a QoS management frame and a second subfield indicating whether the first subfield indicates the PTID of the QoS data frame or the ACI of the QoS management frame; and
transmit, via the RF transceiver, the frame through a wireless medium.

19 . The wireless device of claim 18 , wherein when the second subfield indicates that the first subfield indicates the PTID of the QoS data frame, the first subfield includes three bits that indicate the PTID of the QoS data frame.

20 . The wireless device of claim 19 , wherein when the second subfield indicates that the first subfield indicates the ACI of the QoS management frame, the first subfield includes two bits that indicate the ACI of the QoS management frame and one reserved bit.

Assignees

• Newracom Inc

Inventors

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

Classifications

• H04L69/04

  Protocols for data compression, e.g. ROHC · 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

• H04W28/06

  Optimizing {the usage of the radio link}, e.g. header compression, information sizing {, discarding information (system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365)} · CPC title

• H04L69/22 Primary

  Parsing or analysis of headers · CPC title

• H04L67/12

  specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks · CPC title