SWRA782 October   2023 CC1311P3 , CC1311R3 , CC1312PSIP , CC1312R , CC1312R7 , CC1314R10 , CC1352P , CC1352P7 , CC1352R , CC1354P10

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Overview
    1. 1.1 Acronyms
    2. 1.2 Regulatory Compliance
      1. 1.2.1 TI 15.4 Stack
      2. 1.2.2 Regulatory Body
        1. 1.2.2.1 SUB 1
          1. 1.2.2.1.1 ETSI
          2. 1.2.2.1.2 ARIB
          3. 1.2.2.1.3 FCC
    3. 1.3 Polite Spectrum Access Timing Parameters
      1. 1.3.1 2.4 GHz
      2. 1.3.2 Coexistence
  5. 2Reference Examples
    1. 2.1 Available Chipsets
    2. 2.2 Flash and RAM Allocation
  6. 3Software Block Diagram
  7. 4Network Features
    1. 4.1 15.4 Supported PHYS
    2. 4.2 15.4 Device Architecture
    3. 4.3 15.4 Network Topology
      1. 4.3.1 Supported Network Modes
      2. 4.3.2 Beacon-Enabled Mode
      3. 4.3.3 Non Beacon-Enabled Mode
      4. 4.3.4 Frequency Hopping Mode
  8. 5Security
  9. 6Performance and Test Data
    1. 6.1 Test Data
    2. 6.2 Large Network Stability Tests
      1. 6.2.1 Sub1G
      2. 6.2.2 2.4 GHz
    3. 6.3 Transmission Rate
      1. 6.3.1 One Sensor Network
      2. 6.3.2 Five Sensor Network
      3. 6.3.3 47- Sensor Network
  10. 7Out-of-the Box-Experience
  11. 8Tools
    1. 8.1 Code Composer Studio
    2. 8.2 Sysconfig
    3. 8.3 Packet Sniffer
    4. 8.4 Battery Life Calculator
    5. 8.5 Linux

4.3 15.4 Network Topology

The TI 15.4-Stack sets up a network in star topology, containing primarily two kind of devices. These two device types are defined within the IEEE802.15.4 standard.

The PAN-Coordinator is a central node, which creates a network and allows other devices to join. It is identified by the PAN-ID. The PAN-coordinator is usually the most power consuming device. Its task is to coordinate the network communication

However, when a device is joining the network, the PAN-coordinator sets its reporting interval to a desired value. The network structure is shown in Figure 4-2.

The collector example is a PAN-coordinator whereas the sensor example is acting as network device.

GUID-20230613-SS0I-MZZL-MPN0-KDTGPWZF9MQW-low.svg Figure 4-2 PAN Coordinator

The TI 15.4-Stack offers a lot of networking features, some other features like node balancing, extended network coverage and increased node count are not implemented on MAC and PHY layer. Those can be added on application layer.

Using the star network with a coordinator offers the possibility to run low-power sensors in a wireless network as it offers the opportunity to have sleepy nodes, which can turn off the radio during certain time periods.