SWRA733 March   2022 WL1807MOD , WL1837MOD

 

  1.   Trademarks
  2.   Acronyms
  3. 1Introduction
  4. 2 Single-Channel Versus Multi-Channel
    1. 2.1 MRSC Single Radio Network Topology
    2. 2.2 MRMC Single Radio Network Topology
    3. 2.3 Experiment and Results
  5. 3Multi-Channel Challenges and Requirements
    1. 3.1 802.11 Spec Enablers for Role Switch Protections
    2. 3.2 Role Switch Protection Implementations
      1. 3.2.1 AP Based Roles
      2. 3.2.2 STA Based Roles
    3. 3.3 Single Radio Multi-Channel Challenges
    4. 3.4 Single Radio Multi-Channel Key Requirements
  6. 4WL18xx™ Multi-Channel Implementations
    1. 4.1 Arranging the Role Activity Requests by Priority
    2. 4.2 Scheduling the Role Activities
    3. 4.3 Leveraging MRMC to Improve WLAN-BT Coexistence
  7. 5Conclusions
  8.   Appendix

2.1 MRSC Single Radio Network Topology

The following example will demonstrate the Multi-Role Single-Channel use case and how system efficiency is significantly impacted when roles are operating on same channel (and band): As can be seen in the Figure 2-1 below the traffic between the IoT STAs connected to the Multi-Role device Access Point overlaps and collides with the traffic running from the Remote Station to the Remote Access Point running on the same channel. Thus, overall system throughput is degraded. In addition, the system’s overall power consumption is higher as the amount of re-transmissions required from all the devices is higher.

GUID-20220120-SS0I-2MLR-9QXF-QJNDSP8SCJPR-low.jpg Figure 2-1 Multi-Role Single-Channel Network Topology