Method, system and apparatus for signaling station capabilities to establish wireless connections

Patent metadata

Field	Value
Publication number	US-11297625-B2
Application number	US-202016928266-A
Country	US
Kind code	B2
Filing date	Jul 14, 2020
Priority date	Nov 4, 2016
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

A method in a first wireless station of establishing a connection with a second wireless station includes: generating a frame including a capabilities element having: a core capabilities field containing a predefined sequence of core subfields having respective predefined lengths; the core subfields containing respective first core values defining core capabilities of the first wireless station; and at least one extended capability field containing: an extended capability identifier subfield containing an identifier of one of a plurality of predefined extended capabilities; an extended capability length subfield containing an extended capability length value; and an extended capability payload subfield having a length equal to the extended capability length value; the payload subfield containing a first extended value defining an extended capability of the first wireless station; and responsive to generating the frame, transmitting the frame.

First claim

The invention claimed is:

1. A method in a first wireless station of establishing a connection with a second wireless station, comprising:
generating a frame including a capabilities element having:
a core capabilities field having a fixed length, the core capabilities field containing a predefined sequence of core subfields having respective predefined lengths; the core subfields containing respective first core values defining core capabilities of the first wireless station; and
at least one extended capability field having a variable length, the at least one extended capability field containing:
an extended capability identifier subfield containing an identifier of one of a plurality of predefined extended capabilities;
an extended capability length subfield containing an extended capability length value; and
an extended capability payload subfield having a length equal to the extended capability length value; the extended capability payload subfield containing a first extended value defining an extended capability of the first wireless station;

responsive to generating the frame, transmitting the frame; and
receiving, from the second wireless station, a second frame including at least a second core capabilities field containing the predefined sequence of core subfields having respective predefined lengths; the core subfields containing respective second core values defining core capabilities of the second wireless station.

2. The method of claim 1 , wherein the frame includes one of a beacon frame, a probe request frame, a probe response frame, an information request frame, an information response frame, an association request frame, and an association response frame.

3. The method of claim 1 , wherein the frame includes:
the capabilities element; and
one or more of a header element and a payload element.

4. The method of claim 1 , further comprising:
storing the identifier of the one of the extended capabilities and the first extended value in a memory;
generating the at least one extended capability field by:
retrieving the extended capability identifier from the memory for placement in the extended capability identifier subfield; and
retrieving the first extended value from the memory for placement in the extended capability payload subfield.

5. The method of claim 4 , further comprising:
storing the extended capability length value in the memory; and
wherein generating the at least one extended capability field further comprises:
retrieving the extended capability length value from the memory for placement in the extended capability length subfield.

6. The method of claim 1 , wherein generating the frame further comprises:
generating the capabilities identifier field containing an identifier of the capabilities element; and
appending the core capabilities field after the capabilities identifier field.

7. A wireless communications assembly in a first wireless station for establishing a connection with a second wireless station, comprising:
a memory; and
a controller connected with the memory, the controller configured to:
generate a frame including a capabilities element having:
a core capabilities field having a fixed length, the core capabilities field containing a predefined sequence of core subfields having respective predefined lengths; the core subfields containing respective first core values defining core capabilities of the first wireless station; and
at least one extended capability field having a variable length, the at least one extended capability field containing:
an extended capability identifier subfield containing an identifier of one of a plurality of predefined extended capabilities;
an extended capability length subfield containing an extended capability length value; and
an extended capability payload subfield having a length equal to the extended capability length value; the extended capability payload subfield containing a first extended value defining an extended capability of the first wireless station;
responsive to generating the frame, transmit the frame; and
receive, from the second wireless station, a second frame including at least a second core capabilities field containing the predefined sequence of core subfields having respective predefined lengths; the core subfields containing respective second core values defining core capabilities of the second wireless station.

8. The wireless communications assembly of claim 7 , wherein the frame includes one of a beacon frame, a probe request frame, a probe response frame, an association request frame, and an association response frame.

9. The wireless communications assembly of claim 7 , wherein the frame includes:
the capabilities element; and
one or more of a header element and a payload element.

10. The wireless communications assembly of claim 7 , the memory storing the identifier of the one of the extended capabilities and the first extended value;
the controller further configured to generate the at least one extended capability field by:
retrieving the extended capability identifier from the memory for placement in the extended capability identifier subfield; and
retrieving the first extended value from the memory for placement in the extended capability payload subfield.

11. The wireless communications assembly of claim 10 , the memory storing the extended capability length value;
the controller further configured to generate the at least one extended capability field further by:
retrieving the extended capability length value from the memory for placement in the extended capability length subfield.

12. The wireless communications assembly of claim 7 , the controller further configured to generate the frame by:
generating the capabilities identifier field containing an identifier of the capabilities element; and
appending the core capabilities field after the capabilities identifier field.

Assignees

• Peraso Tech Inc

Inventors

• Cheng Gary
• Andonieh Joseph
• Lynch Bradley Robert
• Hansen Christopher James

Classifications

• H04W72/51 Primary

  based on terminal or device properties · CPC title

• H04W8/22 Primary

  Processing or transfer of terminal data, e.g. status or physical capabilities · CPC title

• H04W76/18

  Management of setup rejection or failure · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title