Enhanced Site Report for Low Latency Roaming By Passive Scanning in Ieee 802.11 Networks

A method for determining available channels in a wireless network comprising:

• receiving regulatory domain information within the wireless network;
• generating a report comprising at least one component corresponding to said regulatory domain information and at least one component corresponding to radar presence;
• transmitting said report;
• receiving said report at a STA 26;
• and
• determining whether a channel is available for transmission based, at least in part, on said component corresponding to said regulatory domain information and said component corresponding to radar presence contained in said report.

A method for determining available channels in a wireless network comprising:

• collecting regulatory domain information in at least one channel at an AP 24;
• generating a protocol frame format with at least one component corresponding to said regulatory domain information;
• transmitting said protocol frame format;
• and
• determining whether a channel is available for transmission based, at least in part, on said component corresponding to said regulatory domain information contained in said protocol frame format.

A system for determining available channels in a wireless network comprising:

• a memory 40, 41 containing regulatory domain information;
• a transmission device 34 for transmitting the regulatory domain information within the wireless network;
• a receiver 34 for receiving the regulatory domain information;
• a report generator which generates a report containing at least one component corresponding to said regulatory domain information;
• a transmitter 34 for transmitting said report;
• a STA 26 for receiving said report;
• and
• a processor 32 for determining whether a channel is available for transmission based, at least in part, on said component corresponding to said regulatory domain information contained in said report;
• and
• a collection of APs 24 that are candidates to which STA 26 can roam.

A system for determining available channels in a wireless network comprising:

• a memory 40, 41 containing regulatory domain information;
• a transmission device 34 for transmitting the regulatory domain information within the wireless network;
• a receiver 34 for receiving the regulatory domain information;
• a detector for detecting the presence of radar;
• a report generator which generates a report containing at least one component corresponding to said regulatory domain information and at least one component corresponding to radar presence;
• a transmitter 34 for transmitting said report;
• a STA 26 for receiving said report;
• and
• a processor 32 for determining whether a channel is available for transmission based, at least in part, on said component corresponding to said regulatory domain information and said component corresponding to radar presence.