MediaTek LinkIt™ Development
Platform for RTOS Wi-Fi Developer's
Guide
© 2015 - 2017 MediaTek Inc.
Page 22 of 36
This document contains information that is proprietary to MediaTek Inc. (“MediaTek”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
2.4.
Scan
Scan modes and scan options are selected when scan function is executed. The modes and options are shown in
Table 8 and Table 9. The Wi-Fi module supports scan mode and option combinations in the AP and station modes.
The station mode supports all scan modes and options and the AP mode supports only the partial scan mode.
Table 8. Scan mode
Value
Definition
0
Full scan
1
Partial scan, it's expected to use in SoftAP mode and keep stations online.
Table 9. Scan option
Value
Definition
0
Active scan. The channels to be scanned are decided by the product's country and region. A
probe request will be sent to each of these channels. Not applied on regulatory channels.
1
Passive scan in all channels. Receives and processes the beacon. No probe request is sent.
2
Forced active scan. Forced active scan in all channels. A probe request is sent to each channel.
Table 10 and Table 11 provide the scanned channel list in different country regions and bands.
Table 10. Channels supporting 2.4G
Region ID
Channel
0
CH1-11 active scan
1
CH1-13 active scan
2
CH10-11 active scan
3
CH10-13 active scan
4
CH14 active scan
5
CH1-14 all active scan
6
CH3-9 active scan
7
CH5-13 active scan
31
CH1-11 active scan, CH12-14 passive scan
32
CH1-11 active scan, CH12-13 passive scan
33
CH1-14 all active scan
Table 11. Channels supporting 5G
Region ID
Channel List
0
CH36-64 active scan, CH149-165 active scan
1
CH36-64 active scan, CH100-140 active scan
2
CH36-64 active scan
3
CH52-64 active scan, CH149-161 active scan
4
CH149-165 active scan
5
CH149-161 active scan
6
CH36-48 active scan
