Latest Bluetooth Version 5.3 New Features

Bluetooth core specification version 5.3

by Bestwireless
bluetooth core specification version 5.3

Bluetooth 5.3 is already here. You might be eager to know what’s new in Bluetooth 5.3. Well, let’s find out the main features that this version of Bluetooth is offering you.

Bluetooth has published a full article that covers all the new features & specs of the new Bluetooth 5.3 on their site. But the problem is this article might be too much for most of you. Also, you may not have that much time to spend on a huge article, or maybe you will have a hard time understanding that. That is why we are here. We will discuss everything that you need to know about the new Bluetooth 5.3 as simply as possible.

What is Bluetooth 5.3?

As you know, Bluetooth is a technology that allows short-range connection between two or more devices. In the beginning, Bluetooth has been used for transferring data among mobile devices. There was a bad reputation regarding the first few versions of Bluetooth. Those were very slow & laggy. For a while, people almost were fade up with Bluetooth. But after the 4.0 version people started to rely on Bluetooth again. Especially the blasted success of Bluetooth Headphones & Gaming Headsets it had become a revolutionary technology that is quite unbeatable. The 5.0 version of Bluetooth introduced a whole new feature like fast connection, long-range & so on. The 5.1 & 5.2 versions yet have some very interesting features like sending signals to find your device & so on. So now it is time for Bluetooth 5.3. This is the most recent & undoubtedly the most advanced version of Bluetooth. It has come with some features that go beyond the previous versions of Bluetooth. Below we are going to explain the new features of Bluetooth 5.3.

1. Periodic Advertising Enhancement

The Periodic Advertisement is not a new thing for Bluetooth 5.3. It already has been introduced on the Bluetooth 5.0 version. It is a feature that bases on extended advertisements. It allows non-connectable advertisements to be sent, but only at a fixed interval. Here the advertising data can change between any of those intervals. It allows one or more scanners to listen to those advertisements. It is known as one kind of multicast & a huge advantage to most other advertising modes. The scanner may go sleep during the interval between two advertisement events. It can put a stop to receiving modes all the time.

The new Periodic Advertising Enhancement is the introduction of the ADI field (AdvDataInfo) that can be remembered for periodic advertising bundles, empowering more proficient handling of excess information. This feature now allows payload form to include in AUX_SYNC_IND protocol data units (PDUs). Those data units will be broadcasted when a device will perform e advertising. The periodic advertisement is only a kind of extended advertisement that is new to Bluetooth 5.3.

The AdvDataInfo (ADI) field of the normal expanded promoting payload configuration may now be remembered for AUX_SYNC_IND convention information units (PDUs) which are communicated when a mobile device is performing periodic advertising. The Bluetooth Low Energy (LE) regulators may now utilize the data in the ADI field to perceive packets that contain retransmitted duplicates of indistinguishable or semantically identical information. Then it will dispose of those bundles to stop any unnecessary processing on the hubs. And then it will ensure that the general throughput is not impacted because of any retransmitted packet. The controller may also discard the packet instead of passing it to the host. Thus the controller may also switch to scanning any kind of primary channel earlier than it would be. This type of periodic advertising enhancement also improves the RX Duty cycle by applying to those channels.


2. Broadcast Retransmissions

Broadcast communication is normally unidirectional that allows only one-sided moving operation. This is also an old feature of Bluetooth that allows the receiver to send information to the sender that s/he has received the sent data. However, this may be misleading sometimes. One may not receive the full data but the signal may identify as a successful data transfer. That is why it is not that reliable for the users. In the case of Bluetooth 5.3, this feature has been improved drastically with the help of periodic advertisement enhancement. The device that uses periodic advertising enhancement increases the probability of the broadcast packets being received by retransmitting identical copies. It may also allow receiving semantically equivalent copies of the same data more than one time for successful transfer.


3. Energy Efficiency

The Bluetooth 5.2 was not very energy efficient. It had the problem of unnecessarily waking up to

perform the processing of redundant data. It happened because The controller had no other way to recognize any periodic advertising packet that contains retransmissions of identical or equivalent data. The ADI field could not be included in AUX_SYNC_IND PDUsr, that is the reason. This problem has been fixed in Bluetooth 5.3 & it has become more energy efficient. The host stays idle most of the time & only wakes up to perform processing when it is actually needed.


4. Encryption Key Size Control Enhancement

Encryption key size indicates the key length that indicates the maximum number of combinations that are required to break any encryption algorithm. In the case of Bluetooth, the size may vary from 1 to 16 bytes depending on the Bluetooth version. In Bluetooth 5.3 BR/EDR, the encryption key sizes are haggled by the controller in associated mobile devices. This change permits a host to illuminate its Bluetooth BR/EDR regulator of the base keys size. It uses the Host Controller Interface (HCI) to do that. This upgrade in Bluetooth 5.3 additionally also works on the proficiency enhancement. The Bluetooth BR/EDR regulators can also advise their host regarding the result of key length negotiation. The Bluetooth BR/EDR regulator will now be able to illuminate the host regarding the changeable key size simultaneously. This dispenses with the requirement for an extra host to regulate roundtrip. Thus it saves some handling time & energy. It also shuts the window during which an unacceptable key size could be used for a brief time frame


5. Connection Subrating

Bluetooth 5.3 LE connection offers a highly flexible way using that is can adapt many dynamic changes regarding power & data throughput. Connection subrating works by switching between high & low duty cycle modes in a faster & new way. It then handles variable traffic & packet rates more efficiently. A high obligation cycle association accomplishes higher information throughput on the cost of expanded force utilization. On the other hand, a low obligation cycle association saves power on the cost of information throughput. There are some products available that stay most of the time on a low-duty cycle. Thus they can reserve power. But when higher bandwidth is required just to support particular application use cases, the connection parameters should be changed as soon as possible. It Bluetooth 5.3 the Connection Sybrating allows this feature to work & eliminate any delay to activate.

The ability that allows from a low duty cycle to a high duty connection cycle on time is very much helpful. It also will deliver a reliable user experience for many users including some important product

types. A subrated connection accomplishes a force-saving low obligation cycle in an alternate manner to non-subrated associations. It also can change around to a high obligation cycle more rapidly.


6. Channel Classification Enhancement

Preceding adaptation 5.3 of the Core Specification, Bluetooth LE channel grouping was performed as it were by the Central mobile. Notwithstanding, if two associated gadgets are not close enough, the radio states of one might differ from those accomplished by the other. This can bring about packet impacts and by &and large corrupted throughput and unwavering quality. In Bluetooth 5.3 LE, Peripheral devices can provide a connected Central mobile device now. It will use radio channel classification data which might be used by the Central mobile device. It will happen while performing the channel selection of adaptive frequency-hopping. This improves throughput reducing susceptibility. It also will increase the reliability as the interference will take place when the central & bordered mobile devices are not close enough physically.


7. Removal of the Alternate MAC and Physical Layer (AMP) Extension

The Alternate MAC & PHY extension is generally briefed as AMP. It allows the Bluetooth 5.3 system to comprise one or more secondary controllers along with a primary Bluetooth BR/EDR controller. This secondary controller allows the use of the IEEE 802.11 MAC & PHY protocols. That time it eliminates the standard Bluetooth layers which are part of the basis controller. This special extension is occasionally found in qualified Bluetooth items. The Bluetooth SIG has taken out this component from Bluetooth 5.3. It will in any case be feasible to qualify items that utilization AMP against a prior Bluetooth version. The frequency that utilizes AMP to use in Bluetooth items is not very high. What’s more, is the Bluetooth SIG has taken the choice to eliminate this component from Bluetooth 5.3. But members can, in any case, qualify items that utilize AMP against a prior Bluetooth Specification like Bluetooth 5.2 until additional notification.


The Bluetooth 5.3 has opened a bunch of whole new modern features to the world. Those features will be very helpful more many users. We hope that there will be more products available that include the new Bluetooth 5.3


You May Like To Visit – Latest Bluetooth Version with Comparison

Related Posts