Mixing basic service set (BSS) traffic and mesh forwarding traffic

• US 7,688,783 B1
• Filed: 04/17/2006
• Issued: 03/30/2010
• Est. Priority Date: 04/15/2005
• Status: Active Grant

• Current Assignee: Avaya Incorporated
• Original Assignee: Avaya Incorporated
• Inventors: Benveniste, Mathilde
• Primary Examiner(s): Feild, Joseph H
• Assistant Examiner(s): Nguyen, Huy D
• Application Number:
  US11/405,213
• Time in Patent Office: 1,443 Days
• Field of Search: 370/329, 370/328, 370/341, 455/450, 455/451, 455/452.1
• US Class Current: 370/329
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 74/06 using polling

Abstract

A method and apparatus for mixing Basic Service Set (BSS) and mesh traffic is presented. A same channel or a same radio is shared for mesh traffic and BSS traffic. The sharing of the channel including reserving a channel for BSS traffic by a Mesh Access Point (MAP), the reserving comprising sending a CC-RTS or a CC-CTS addressed to the MAP and/or blocking use of the channel by a BSS stations when the channel is not reserved for BSS traffic, the blocking use of the channel comprising the MAP sending a frame setting a NAV in the BSS. The shared radio is switchable between serving the BSS traffic and serving the mesh traffic.

Claims

1. A method of merging Basic Service Set (BSS) and mesh traffic comprising:

sharing a same channel for mesh traffic and BSS traffic, the sharing a channel comprising at least one of a group consisting of;

reserving a channel for BSS traffic by a Mesh Access Point (MAP), said reserving comprising sending one of a group consisting of a CC-RTS and a CC-CTS addressed to said MAP; and

blocking use of the channel by a BSS station when the channel is not reserved, said blocking use of the channel comprising said MAP sending a frame setting a NAV in the BSS, wherein said blocking use of the channel by a BSS station comprises said MAP sending a frame on the BSS channel that sets the NAV of the stations in the BSS, wherein said MAP sending a frame comprises said MAP sending a QoS CF-Poll frame addressed to said MAP, and wherein MPs hearing said QoS poll, said QoS poll having a same first address and second address field in a MAC header of said frame and wherein said frame has a non-zero duration field, disregard said frame.

2. The method of claim 1 wherein said sending one of a group consisting of a CC-RTS and a CC-CTS comprises sending one of a group consisting of a CC-RTS and a CC-CTS indicating the data channel the MAP has selected for use in the BSS and a length of time interval said BSS will have use of said channel.

3. The method of claim 2 further comprising at least one of a group consisting of stations in said BSS transmitting to said MAP during said time interval, stations in said BSS transmitting to other stations in said BSS during said time interval, and said MAP transmitting to said stations in said BSS during said time interval.

4. The method of claim 2 further comprising said MAP refraining from reserving said channel again until a predetermined time period has elapsed.

5. The method of claim 1 wherein said QoS CF-Poll frame includes a time interval that the BSS stations refrain from accessing the channel.

6. A method of merging Basic Service Set (BSS) and mesh traffic comprising:

sharing a same radio for mesh traffic and BSS traffic, said radio switchable between serving said BSS and serving said mesh, wherein said sharing a radio comprises;

blocking use of the channel by a BSS station when the channel is not reserved, said blocking use of the channel comprising said MAP sending a frame setting a NAV in the BSS; and

setting the radio to a data channel and transmitting mesh traffic during a time interval of said NAV, wherein said MAP sending a frame comprises said MAP sending a QoS CF-Poll frame addressed to said MAP, wherein MPs hearing said QoS poll, said QoS poll having a same first address and second address field in a MAC header of said frame and wherein said frame has a non-zero duration field, disregard said frame.

7. A communication system comprising at least one BSS and at least one MAP, at least one of said BSS and said MAP comprising:

a memory;

a processor;

a communications interface;

an interconnection mechanism coupling the memory, the processor and the communications interface; and

wherein the memory is encoded with a BSS and mesh traffic merging application that when performed on the processor, provides a process for processing information, the communication system capable of performing the operations of;

sharing a same channel for mesh traffic and BSS traffic, the sharing a channel comprising at least one of a group consisting of;

reserving a channel for BSS traffic by a Mesh Access Point (MAP), said reserving comprising sending one of a group consisting of a CC-RTS and a CC-CTS addressed to said MAP; and

blocking use of the channel by a BSS station when the channel is not reserved, said blocking use of the channel comprising said MAP sending a frame setting a NAV in the BSS, wherein said blocking use of the channel by a BSS station comprises said MAP sending a frame that sets the NAV in the BSS, wherein said MAP sending a frame comprises said MAP sending a QoS CF-Poll frame addressed to said MAP, wherein said QoS CF-Poll frame includes a time interval that the BSS stations refrain from accessing the channel, and wherein said communication system is further capable of MPs hearing said QoS poll, said QoS poll having a same first address and second address field in a MAC header of said frame and wherein said frame has a non-zero duration field, disregard said frame.

8. The communication system of claim 7 wherein said operation of sending one of a group consisting of a CC-RTS and a CC-CTS comprises sending one of a group consisting of a CC-RTS and a CC-CTS indicating the data channel the MAP has selected for use in the BSS and a length of time interval said BSS will have use of said channel.

9. The communication system of claim 8 wherein said communication system is further capable of at least one of a group consisting of stations in said BSS transmitting to said MAP during said time interval, said BSS transmitting to other stations in said BSS during said time interval, and said MAP transmitting to said stations in said BSS during said time interval.

10. The communication system of claim 7 wherein said communication system is further capable of said MAP refraining from reserving said channel again until a predetermined time period has elapsed.