Integrate Bluetooth and UWB to develop new wireless Spaces

It can be said that the prosperity of the wireless connection era is inseparable from the contribution of the Bluetooth Technology Alliance SIG, this organization is primarily responsible for ensuring that hundreds of millions of Bluetooth devices with broad compatibility are connected through solid wireless links and work together in a fault-free manner. However, more and more people now think that there are only a few days for Bluetooth. Over the years, Bluetooth has been the target of replacement by other wireless technologies. As a result, the market environment has been relentlessly compressed. Devices that provide higher bandwidth, lower power consumption, and higher protocol efficiency are relatively simple and easy to use because they do not require lengthy standard authentication processes ), they are gradually undermining the market share of Bluetooth.
Of course, successful technologies like Bluetooth are hard to disappear overnight, bluetooth SIG members have been firm in responding to the competitive pressures from ZigBee, Wi-Fi and proprietary RF Device moisture recovery. Notable development trends include modifying the Protocol to increase the bandwidth of Bluetooth 2.0 + data rate enhanced version-EDR) and planning to bring Bluetooth and ultra-broadband technology to the Alliance recently. The next trend is bound to combine the advantages of the bluetooth wireless lan wpan with the data transmission rate of up to 100 Mbit/s for the UWB system.
However, none of these measures can change the following facts: it is true that Bluetooth is undoubtedly a proven solution-especially for low duty-cycle file transfer between one master device in WPAN and up to seven slave devices-but from the RF silicon Integrated Circuit silicon radio) is not a particularly good technology. For example, Bluetooth has a narrow bandwidth and quickly consumes the battery. In addition, most portable devices currently use Bluetooth technology as their main communication connection device. Bluetooth technology was initially applied to mobile phones with its low power consumption advantages, currently, the transmission speed of Bluetooth is as fast as 3 Mbps, which is enough for audio applications. However, it is far from enough for applications to transmit heavy video data.
WiMedia ultra-wideband (ultra-wideband) is a technology that transmits high-speed wireless data links in multimedia enhancement devices. This technology enables the data transmission rate to reach 480 Mbps and supports applications of high-end mobile phones. However, the UWB technology is still in the development stage and is not as mature as the WiFi and Bluetooth technologies. As far as the portable device market is concerned, some factors in the UWB itself make it unable to be widely used and popularized. Due to the lack of signaling technology, reliable security, powerful matching capabilities, power, and other issues, UWB is not applicable to battery-powered portable devices and faces the risk of falling behind as a small-market technology. On the other hand, mature technologies such as Bluetooth are reliable and efficient, so that they can take UWB away from their only applications and introduce it to the portable device market. That's why the Bluetooth Technology Alliance SIG announced that future Bluetooth specifications will support WiMediaUWB ).
However different, Bluetooth and UWB are two complementary technologies. Bluetooth has always provided low-speed data transmission, but its cost and power consumption are low. Bluetooth 25mA + EDR Enhanced Data Rate) Currently, the maximum application rate is 3 Mbit/s. At the same time, the active power consumption is, And the idle power consumption is only a few micro-security. In the active state, the power consumption of UWB is 20 times that of Bluetooth, but the data speed is as high as 480 Mbit/s, which can meet the increasing demand for a large amount of data applications. Compared with Bluetooth, the power consumption of each bit of the UWB system is low, enabling rapid data transmission. However, the valid bandwidth range is only 3 meters, while that of Bluetooth is more than 100 meters.
So far, we know that these two technologies have very different characteristics: the effective range of UWB is small, but the data transmission rate is high and the power requirement is high; while the effective range of Bluetooth is large, the power requirement is very low, but the data transmission rate is not satisfactory. Therefore, by integrating Bluetooth and UWB, device manufacturers can achieve low power consumption, low cost, and high data rate transmission through a "single" wireless solution, which cannot be achieved through a technology.
By combining Bluetooth and UWB technology, device manufacturers are able to combine "single" wireless solutions in most operations to deliver low-power, low-cost, and high-speed data at low power consumption. Changing the current situation of Bluetooth transmission, but does not want to discard the existing hundreds of millions of devices equipped with Bluetooth technology, the Bluetooth Technology Alliance is currently using WiMedia UWB as an additional interface, the combination of these two technologies, it can achieve better energy storage performance than previously, and also provide WiMedia with an application basis. The Transport Layer of the UWB technology is located under the Noise layer, which is easy to transmit in an imperceptible layer. However, it is quite difficult to correctly receive information in this layer, the low power consumption, fast transmission speed, and support of hundreds of synchronization channels of the UWB technology are not affected by RF, so there is almost no problem caused by coexistence.