Bluetooth BQB Certification Test Process Bqb Cert

Bluetooth BQB certification test, Bluetooth BQB certification process

1.Bluetooth BQB certification

1.1 Introduction

Bluetooth certification is also BQB certification (Bluetooth Qualification Body). In short, if your product has Bluetooth function and the Bluetooth logo is marked on the product appearance, it must pass a certification called BQB. All Bluetooth SIG member companies can use the Bluetooth wordmark and logo after completing certification. The Bluetooth wordmark and logo may only be used on products that have passed the Bluetooth qualification process.

1.2Two methods of BQB certification

1.2.1 Listing method

1. First, you need to purchase a DID from the SIG official website (if you are a SIG annual member, you will need a DID of US$4,000; if you are a free member, you will need US$8,000);

2. Obtain authorization from the Bluetooth module supplier. Note: The Bluetooth module used needs to be BQB certified, and the certification method must be end product, or a combination of three subsystems: Controller Subsystem, Profile Subsystem, and Host Subsystem. If missing Not even one.

3. Bind the purchased DID with the Bluetooth module authorization (operate in the SIG account);

4. Every time you use this Bluetooth module to produce a new product in the future, you only need to DID the following name here, and SIG will assign a QDID to each product (the DID of End product is permanently valid, and the DID of Component is usually three year validity period).

5. It should be noted that under normal circumstances, when the module is doing End Product, the Profile and RF performance will be different from the Profile and RF performance after the module is imported into the whole machine. Therefore, strictly speaking, it is also recommended to modify the profile and RF performance of the whole machine. , these two parts are retested. Then combine the module's End product QDID to list the entire machine.

1.2.2 Non-listed method

When the BQB certification obtained by the Bluetooth module manufacturer is not an end product, nor is it a combination of the three subsystems of Controller Subsystem, Profile Subsystem, and Host Subsystem, for example, it is a Component, then the above listed method cannot be used.

At this time, we need to take the vehicle as a unit and get it to a third-party laboratory for BQB certification testing. Generally, the test items are as follows:

1. Supplementary testing of protocol stacks not included in Component QDID;

2. Test Profile;

3. Test RF performance.

In the end, this vehicle will be used as the type of End Product, and then we can make other listings similar to this vehicle based on this vehicle. In this way, we can also spend one dollar to list multiple products on the SIG official website.

Compared with the methods listed above, this method must first prepare hardware equipment for testing, and in addition to paying SIG to purchase DID, you also need to pay a third-party laboratory for testing, usually tens of thousands of yuan, and the laboratory will Profile and Bluetooth version are adjusted.

Specific software is used for testing during certification, and mass-produced software is not required.

1.3Power Class

Level Transmit power dbm Distance (meters)

class 1 10 dbm 100

class 2 4dbm 10

2.Bluetooth FCC certification

The fixed frequency test is mainly to test RF related. Bluetooth is at 2.4G and the transmit power is within the range.

Specific software is used for testing during certification, and mass-produced software is not required.

3. Measure Bluetooth RF performance

3.1 Frequency deviation

3.2 Sensitivity

3.3 Transmission power

The Bluetooth device under test in the above test enters DUT mode, and then is tested with a Bluetooth tester (such as 8852).

The connection between the device under test and the Bluetooth tester is preferably a coaxial cable, or an antenna can be used directly to transmit data over the air. Using coaxial cable can effectively avoid interference, improve the quality of received signal data, and reduce test time. We recommend that customers sample coaxial cable connections when actually performing frequency offset correction. If there is indeed no condition to sample the air interface connection, it is also recommended that customers choose a better antenna when using UPT, such as the non-directional antenna shown in the figure below, to reduce the possibility of test failure (the same is true for transmit power and sensitivity tests) in this way). Placing the device under test in a shielding box can block interference.

4.Bluetooth test principle

DUT: Device Under Test The device under test, here refers to the Bluetooth module or finished small machine. After entering the DUT, you cannot use mobile phones and other devices for normal connection, but you can search for it.

SUT: System Under Test system test equipment, here refers to equipment that can receive and send specific wireless data to the DUT