1. Need for product verification
Enterprises that do BQB certification have requirements for their products. After the product is painstakingly designed, it needs to know the performance indicators of the actual product after design. . For example, whether the connection distance is far enough and whether the anti-interference performance is good. This can be tested and verified according to the two RF test standards RF.TS.5.0.1 and RF-PHY.TS.5.0.2 in the Bluetooth BQB certification specification.
Wireless products pay great attention to the transmission distance, which mainly involves two aspects.
1) The power of the transmitter. You can check the specific transmit power in dBm according to the test standard RF/TRM/CA/BV-01-C. This indicator is related to the circuit matching of the product, the length and loss of the circuit trace at the antenna interface.
2) Receiver performance overview. If the transmitting power is high and the receiver performance is good, the transmission distance will be long. Regarding receiver performance, the Bluetooth BQB certification includes the receiver sensitivity test standard RF/RCV/CA/BV-01-C. The data tested by the receivers of different Bluetooth products are different. Some better receivers can reach a sensitivity of -9 dBm, -10 dBm, regular -8 dBm. This indicator requires optimizing circuit board layers, routing, grounding, filtering, etc.
In addition, there are a series of test standards such as RF/RCV/CA/BV-03-C carrier-to-interference ratio test, RF/RCV/CA/BV-04-C blocking test, and intermodulation test. To comprehensively evaluate the performance of the designed product, engineers can know which indicators are not good and how to improve the product in the next design.
2. Market access requirements
The current Bluetooth BQB certification is a certification organized by the Bluetooth SIG organization. Through the Bluetooth BQB certification, we hope to obtain the Bluetooth organization's use of Bluetooth technology for products. Bluetooth trademark authorization (such as technology patents, trademark licenses). The Bluetooth organization has registered trademarks around the world before promoting Bluetooth technology. For companies exporting Bluetooth products, this certification becomes a market access license. It is a mandatory certification that must be obtained for sales in some regions and countries. Without this They will not be allowed to clear customs after certification and will not be allowed to be sold in the market.
At present, large and well-known domestic companies will do BQB certification because they are afraid of causing legal disputes. Generally, small companies rarely do this certification. If the value of the goods is relatively large, it may cause the Bluetooth organization to complain to the industrial and commercial department and request an audit.
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