SWRU616B September   2023  – April 2024 CC3300 , CC3301 , 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

6 Wi-Fi/Bluetooth Low Energy Coexistence

Wi-Fi and Bluetooth Low Energy are both implemented on the CC33xx to eliminate the need for separate devices to implement Bluetooth Low Energy and Wi-Fi. This provides a more compact, inexpensive solution that provides superior coordination of the transmission of Wi-Fi and Bluetooth Low Energy signals. This coordination is accomplished using the coexistence (COEX) hardware module that enables multiplexed air access for internal Wi-Fi and Bluetooth Low Energy signals as well as external SOC signals operating at the same 2.4 GHz frequency.

The COEX interface implemented for CC33xx devices is compatible with other 2.4 GHz technologies that support Packet Traffic Arbitration (PTA). This is one of the approaches recommended and described by IEEE 802.15.2.

The same antenna is used for any signal transmission on the 2.4 GHz frequency band, thus the COEX module minimizes and handles real time air-access collisions based on the assigned priorities to different signals.

Signals from the BLE Core and WiFi module both pass through the COEX hardware and are multiplexed to be transmitted from the antenna. It is also possible to connect an external SOC that will also be multiplexed via the COEX hardware to transmit through that same antenna.

GUID-20230828-SS0I-C5MX-JPKQ-WD2RS9CMVL7G-low.svg Figure 6-1 Coexistence in CC33xx Device