SWRU616B September   2023  – April 2024 CC3300 , CC3301 , CC3301MOD , CC3350 , CC3351

 

  1.   1
  2.   CC33xx WLAN Features Guide
  3.   Trademarks
  4. 1Introduction
    1. 1.1 Scope
    2. 1.2 Acronyms Used in This Document
    3. 1.3 CC33xx Specification
  5. 2General Features
    1. 2.1  Supported Rates
      1. 2.1.1 11ax Rates
      2. 2.1.2 11n Rates
      3. 2.1.3 11a/g Rates
      4. 2.1.4 11b Rates
    2. 2.2  A-MPDU and A-MSDU
    3. 2.3  BA Sessions
    4. 2.4  Keep Alive
      1. 2.4.1 STA
      2. 2.4.2 AP
    5. 2.5  Wake on WLAN (WoW)
    6. 2.6  Antenna Diversity
    7. 2.7  Quality of Service (QoS)
    8. 2.8  Security
      1. 2.8.1 Authentication Types
      2. 2.8.2 Encryption Types
    9. 2.9  Wi-Fi Provisioning
      1. 2.9.1 AP Provisioning
      2. 2.9.2 Bluetooth Low Energy Provisioning
      3. 2.9.3 Wi-Fi Protected Setup (WPS)
        1. 2.9.3.1 WPS PBC
        2. 2.9.3.2 WPS PIN
    10. 2.10 Wi-Fi Power Management Modes
      1. 2.10.1 Power Levels
        1. 2.10.1.1 Active
      2. 2.10.2 Power Save Delivery
        1. 2.10.2.1 Legacy Power Save
  6. 3Single Role: Station
    1. 3.1 Scanning
      1. 3.1.1 Active
      2. 3.1.2 Passive
    2. 3.2 Wi-Fi 6
    3. 3.3 Multicast Filtering
    4. 3.4 Preferred Networks
    5. 3.5 Channel Switch
    6. 3.6 Wi-Fi Power Management Modes
      1. 3.6.1 Power Save Delivery
        1. 3.6.1.1 Unscheduled Asynchronous Power Save Delivery (U-APSD)
        2. 3.6.1.2 Target Wake Time (TWT)
      2. 3.6.2 TI Specific Features
        1. 3.6.2.1 Auto Power-Save Mode
        2. 3.6.2.2 Long Sleep Interval
  7. 4Single Role: AP
    1. 4.1 Hidden SSID
    2. 4.2 Maximum Connected Stations
    3. 4.3 Aging
  8. 5Multirole Multichannel
    1. 5.1 AP-STA
    2. 5.2 STA-STA
  9. 6Wi-Fi/Bluetooth Low Energy Coexistence
  10. 7References
  11. 8Revision History

3.5 Channel Switch

The dynamic frequency selection (DFS) is a process that is applied to 5-GHz channels, 52 to 140, where radar can operate. Channel switch is a mechanism that dynamically switches the operating frequency of the 5GHz radio to avoid co-channel operation with radar systems.

This feature verifies that the STA does not transmit any packets in channels where DFS operates upon radar detection.

The AP must detect the radar and notify the any connected stations that the AP is moving to a new channel by sending a channel switch announcement (CSA) using beacon and probe response frames. A STA that receives a channel switch announcement element can choose not to perform the specified switch and take alternative action instead.

The Channel Switch feature is enabled when the CC33xx is in STA mode.