Today the most common WLAN solutions support 802.11b/g standards and operate in the 2.4GHz ISM band only. Due to the increasing adoption of WLAN network in home, office and public networks, the number of wireless LAN users is growing every year and that is overloading the 2.4GHz band.
In fact the 2.4 GHz band offers only 3 non overlapping channels and all those channels have to be shared with other systems operating in the same band such as Bluetooth solutions, microware ovens and cordless phones. The result is loss of performance due to the channel interferences.
The answer to this problem is to support the 802.11a WLAN standard in order to use the available channels at 5GHz. Considering the growing of WLAN solution operating at 5Ghz and considering that many clients are still supporting the 802.11b/g standards only, the new frontline of access point is required to support a potential mix of clients operating at 2.4 and 5GHz and covering 802.11 b, g and a standards. This was possible until now only having two independent radios (one supporting the 802.11b/g standards and the other one supporting the 802.11a standard), but the high cost of this system approach has limited their adoption.
STMicroelectronics offers to the WLAN market an innovative solution to overtake this problem: the Band Interleaving. |
| |
| What is Band Interleaving? |
Band interleaving is the capability of the access point to support simultaneously set of users at 5GHz and at 2.4GHz, using switching technique that shares available throughput between clients with 11b/g or 11a standards according to demand.
The important innovative point is the ability of ST band interleaving WLAN solution for access point to support clients in both bands using only a single radio. |
| |
|
|
|
