bluetooth 5.2 vs 5.3

If you’re not familiar with the differences between these technologies, this article will go into depth about the new innovations in wireless sound.

what you can expect from each of these technologies and what type of devices they are most compatible with!

Bluetooth 5.2

A low latency makes it easier for you to get the real-time information you need while you’re trying to achieve a specific task.

A longer range and better efficiency are offered by this new technology. Whether it’s a voice-controlled speaker or a pair of headphones, there’s something to offer everyone.

Bluetooth version 5.2 introduced support for Piconet Link Manager Mode, which allows devices to connect to each other without having to take turns, which helps to avoid interference.

Bluetooth 5.3

There are changes to the Bluetooth 5 standard in the 5.3 update.

  • Periactically Enhanced Advertising. Typically, Bluetooth transmitting devices will send the same information out multiple times to ensure that it is received, but this improvement means that the received data has to only be scanned once and duplicates will be discarded immediately.

    It’s called “Smart Energy Harvesting.” This technology could allow the receiving device to harvest energy from ambient light.

  • The Bluetooth Special Interest Group (SIG) is currently defining new standards for Bluetooth Low Energy device security that will enable better protection for both connected and unconnected devices.

    This improvement allows hosts to configure a key size that must be matched to enable a connection.

  • For those who need to use the device on an extended period of time, we recommend that you turn off this feature for Bluetooth Connectivity Mode. By default, the device switches automatically from low duty cycle to heavy duty cycle whenever it detects that it’s in a Bluetooth connectivity mode.
  • Bluetooth Peripheral device channel classification enhancement, allows peripheral Bluetooth devices perform channel classification when packets of data are transmitted over different frequencies.

    This new method will make packet collisions much less likely, which will improve performance.

Channel classification and influence of the channel map can now be performed by peripheral devices, increasing connection reliability in certain situations.

Using Bluetooth low energy peripheral devices to control the adaptive frequency hopping (AFH) channel map can improve the throughput and reliability of connections where Central and Peripheral devices are not in close proximity.

A spread spectrum technique called adaptive frequency hopping is used when there are two devices connected. When sending packets, the 2.4 GHz band is divided into smaller channels and rapidly hops between those channels. A table of data called the channel map is used to classify each channel as either used or not suitable for use.

The Central device was used before version 5.3 of the core specification to perform the classification. The radio conditions of the Peripheral device may differ from those experienced by the Central if two connected devices are not in close proximity.

It is possible that the channel map can contain channels that are not viable for the remote Peripheral if channel classification is only done by the central device.

It has the potential to degrade throughput and increase the chance of packet collision.

Channel classification may be performed by the Peripheral device and the Central. When updating the Central device’s channel map, the Peripheral can report its channel classifications to the Central device.

The enhancement of the channel classification allows both devices to determine which channels are performing well and are suitable for use.

The AFH channel map can now be influenced by peripheral devices, which can perform channel classification.

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