Set/Reset Mechanism

• US 20080107113A1
• Filed: 10/31/2007
• Published: 05/08/2008
• Est. Priority Date: 11/07/2006
• Status: Abandoned Application

• Current Assignee: Conexant Systems Incorporated (Synaptics Incorporated)
• Original Assignee: Conexant Systems Incorporated (Synaptics Incorporated)
• Inventors: Wentink, Menzo
• Application Number:
  US11/930,715
• Publication Number:
  US 20080107113A1
• Time in Patent Office: Days
• US Class Current: 370/392
• CPC Class Codes: H04W 52/0225 using monitoring of external events, e.g. the presence of a signal
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Included are embodiments for resetting a signal. At least one embodiment of a method includes sending a first packet, the first packet including a first legacy physical layer header, the first legacy physical layer header including a first duration indication configured to indicate a predetermined duration, the predetermined duration being longer than an expected time for a second packet and sending the second packet prior to expiration of the first duration indication, the second packet including a second legacy physical layer header, the second legacy physical layer header configured to provide a second duration indication substantially equal to a length of the second packet.

Claims

1. A method for resetting a signal, comprising:

sending a first packet, the first packet including a first legacy physical layer header, the first legacy physical layer header including a first duration indication configured to indicate a predetermined duration, the predetermined duration being longer than an expected time for a second packet; and

sending the second packet prior to expiration of the first duration indication, the second packet including a second legacy physical layer header, the second legacy physical layer header configured to provide a second duration indication substantially equal to a length of the second packet.

2. The method of claim 1, wherein the first legacy physical layer header is configured to create a first legacy clear channel assessment (CCA), wherein the second legacy physical layer header is configured to create a second legacy CCA, and wherein resetting an indication by the first legacy physical layer header includes resetting the first legacy CCA by the second legacy CCA.

3. The method of claim 1, wherein the first packet includes a first physical layer high throughput header, wherein the second packet includes a second physical layer high throughput header, and wherein the first physical layer high throughput header is configured to create a high throughput clear channel assessment (CCA) having a third duration substantially equal to a first packet duration, wherein the second physical layer high throughput header is configured to create a second high throughput CCA substantially equal to a fourth packet duration.

4. The method of claim 3, wherein the first packet includes a clear to send (CTS) media access control (MAC) protocol data unit (MPDU), the CTS MPDU configured to create a network allocation vector (NAV).

5. The method of claim 4, wherein the second packet includes a contention free end (CF-End) MPDU, the CF-End MPDU configured to reset the NAV created by the CTS MPDU at a predetermined time.

6. The method of claim 1, further comprising sending communication data in at least one of the following:

the first packet and the second packet.

7. A system for resetting a signal, comprising:

a first sending component configured to send a first packet, the first packet including a first legacy physical layer header, the first legacy physical layer header including a first duration indication configured to indicate a predetermined duration, the predetermined duration being longer than an expected time for a second packet; and

a second sending component configured to send the second packet, the second packet including a second legacy physical layer header, the second legacy physical layer header configured to provide a second duration indication substantially equal to a length of the second packet, the second legacy physical layer header further configured to reset an indication by the first legacy physical layer header.

8. The system of claim 7, wherein the first legacy physical layer header is configured to create a first legacy clear channel assessment (CCA), wherein the second legacy physical layer header is configured to create a second legacy CCA, and wherein resetting an indication by the first legacy physical layer header includes resetting the first legacy CCA by the second legacy CCA.

9. The system of claim 7, wherein the first packet includes a first physical layer high throughput header, wherein the second packet includes a second physical layer high throughput header, and wherein the first physical layer high throughput header is configured to create a high throughput clear channel assessment (CCA) having a duration substantially equal to a first packet duration, wherein the second physical layer high throughput header is configured to create a second high throughput CCA substantially equal to a fourth packet duration.

10. The system of claim 9, wherein the first packet includes a clear to send (CTS) media access control (MAC) protocol data unit (MPDU), the CTS MPDU configured to create a network allocation vector (NAV).

11. The system of claim 10, wherein the second packet includes a contention free end (CF-End) MPDU, the CF-End MPDU configured to reset the NAV created by the CTS MPDU at a predetermined time.

12. The system of claim 7, further comprising a third sending component configured to send communication data in at least one of the following:

the first packet and the second packet.

13. A computer readable medium for resetting a signal, comprising:

first sending logic configured to send a first packet, the first packet including a first legacy physical layer header, the first legacy physical layer header including a first duration indication configured to indicate a predetermined duration, the predetermined duration being longer than an expected time for a second packet; and

second sending logic configured to send the second packet, the second packet including a second legacy physical layer header, the second legacy physical layer header configured to provide a second duration indication substantially equal to a length of the second packet, the second legacy physical layer header further configured to reset an indication by the first legacy physical layer header.

14. The computer readable medium of claim 13, wherein the first legacy physical layer header is configured to create a first legacy clear channel assessment (CCA), wherein the second legacy physical layer header is configured to create a second legacy CCA, and wherein resetting an indication by the first legacy physical layer header includes resetting the first legacy CCA by the second legacy CCA.

15. The computer readable medium of claim 13, wherein the first packet includes a first physical layer high throughput header, wherein the second packet includes a second physical layer high throughput header, and wherein the first physical layer high throughput header is configured to create a high throughput clear channel assessment (CCA) having a duration substantially equal to a first packet duration, wherein the second physical layer high throughput header is configured to create a second high throughput CCA substantially equal to a fourth packet duration.

16. The computer readable medium of claim 15, wherein the first packet includes a clear to send (CTS) media access control (MAC) protocol data unit (MPDU), the CTS MPDU configured to create a network allocation vector (NAV).

17. The computer readable medium of claim 16, wherein the second packet includes a contention free end (CF-End) MPDU, the CF-End MPDU configured to reset the NAV created by the CTS MPDU at a predetermined time.

18. A method for resetting a signal, comprising:

sending a first packet, the first packet including a first legacy layer header; and

sending a second packet, the second packet including a second legacy physical layer header, the second legacy physical layer header configured to indicate a duration substantially equal to a length of the second packet, the legacy physical layer header further configured to reset an indication by the first legacy layer header.

19. The method of claim 18, wherein the second packet includes a physical layer high throughput header and a contention free end (CF-End) media access control (MAC) protocol data unit (MPDU), the CF-End MPDU configured to reset a network allocation vector (NAV).