Fusion, the next wave of battlefield in wireless technology

Fusion, the next wave of battlefield in wireless technology

In recent years, with the concept of Internet of Things and smart homes, people have increasingly felt the importance of wireless connection technology. According to their own characteristics, multiple wireless technologies such as WiFi, Bluetooth, and ZigBee have found suitable applications in the market, but from a consumer's point of view, they hope that all devices using wireless technology can seamlessly connect. , to bring more convenience to your life. This has also led to the continuous development of the convergence of wireless technologies, such as Bluetooth and WiFi, RFID and 3G technologies, which provide a variety of solutions for the connection of various types of terminal equipment.

As the interconnection between various devices becomes possible, devices equipped with wireless communication functions are also constantly being popularized. In the course of the use of many wireless technologies, people have discovered that although there are many advantages in Bluetooth technology, there are still many shortcomings. For industrial, home automation control and industrial telemetry and remote control applications, Bluetooth technology is too complex, and distance restrictions have caused networking problems. The scale cannot be further expanded. While Wi-Fi has a web portal, it is even more power-efficient than Bluetooth. The demand for wireless data communication in industrial automation is becoming more and more intense, and, for industrial sites, this kind of wireless transmission must be highly reliable and resistant to various electromagnetic disturbances in the industrial field. Therefore, the ZigBee protocol came into being, but due to many factors such as the difficulty of research and development, it has always been in a tepid state, the application of industrial control in the relatively more.

With the increasing demand for interconnection and intercommunication between various consumer electronics and communications products, the three are gradually moving from competition to convergence. From the technical point of view, the Bluetooth application can be called a wireless personal network, which is a small-capacity data transmission between devices. Wi-Fi is a wireless local area network. It is mainly used for large-capacity data transmission between devices and is often used for network access. ZigBee Due to its relatively complex network structure, it is suitable for use in areas such as automatic control and remote monitoring. Although there are obvious differences in the application, many times they can achieve perfect complementarity. Wi-Fi is the technology of choice when devices require signal coverage throughout the building. When only the connection of indoor or body areas is needed, Bluetooth can effectively reduce the power consumption. ZigBee can combine their respective strengths and will also invest in more diversified areas in the future.

From technology to market, the challenge of ubiquitous wireless technology convergence poses unprecedented challenges to the design of communications products. In addition to the need for powerful hardware infrastructure, the device itself must also support multiple wireless protocols. These protocols support Requirements for mobile communications, entertainment experiences, computing applications.

As with all networks, security issues are also an important issue that must be addressed in the development of wireless technology convergence. While integrating their respective advantages, they will inevitably bring corresponding disadvantages into the converged network. In addition to the inherent security requirements of the original respective networks, they will also face a series of new security issues, such as gateway security and the above-mentioned agreements. Seamless connection problem. For example, in a network integrating multiple wireless technologies, the mobile terminal is allowed to communicate with nearby terminals and forward data for other terminals. The terminal does not need to declare when joining or leaving a sub-network, and it is difficult to ensure that all mobile terminals operate according to a predetermined protocol. These have brought new security issues to the confidentiality and security of data.

Second, the integrated integration of wireless technologies will also face the challenges of opening the market. Because the usage scenarios of the user's products are different, some users usually choose the products they need when they do not need to use one or more wireless connection technologies in certain product application scenarios. Products that appear on the market include single WiFi, single GPRS, WiFi+Bluetooth or WiFi+Bluetooth+NFC, and MCU, and various combination solutions. The types of combinations are also different for market needs. Why not all together? The problem is that this will inevitably increase additional costs, and customers may not be willing to bear it.

From the home to the car, the integration of big trends and irresistible smart home and automotive industry in the future will be a wireless technology intertwined areas.

For the emerging field of smart homes, various wireless technologies are involved, but at present there is no unified standard. From the perspective of development trends, home devices use Bluetooth, ZigBee and other low-power wireless technologies to interconnect and interact with the outside world through Wi-Fi gateways with good prospects.

The automotive field focuses on practicality and reliability. Mature technologies such as Wi-Fi are even more advantageous. However, considering the interconnection with mobile devices, the growth of Bluetooth is also inevitable. The convergence with other wireless technologies such as ZigBee and Bluetooth will also increase. The more you come. Broadcom released a wireless chip product, the BCM89335, which was targeted at the automotive infotainment industry last year and implemented a full set of 5G WiFi systems on a single chip, including MAC, PHY, RF, and Bluetooth Smart ready technology. With these technologies, drivers and passengers can easily synchronize the content and stream operations of car infotainment systems and rear-seat displays via mobile devices. The BCM89335 also enables high-speed connectivity outside the vehicle, providing Internet and cloud content via the LTE telematics system or directly via a hotspot connection.

In the field of consumer electronics, the convergence of wireless technologies is also a general trend. Today's smart phones and tablet computers not only require the support of basic communications technologies such as 3G/4G, Wi-F, and Bluetooth, but also more additional technologies such as NFC mobile payment and RFID. Radio frequency identification and other communication functions are also increasingly perfect, and the requirements for the technical level will also continue to increase. To better help engineers design wireless convergence products, Marvell introduced the Avastar series of single-chip 88W8797, an advanced power management SOC designed for the next generation of handheld products, and the first high-performance multi-input multi-output ( MIMO) Wi-Fi + Bluetooth + FM chip.

The 88W8797 is an 802.11n 2x2 dual-band system-on-chip (SoC) that provides up to 300Mbps Wi-Fi data rate, doubling the performance of today's mobile products, enabling new high-bandwidth media applications without equipment The effect of spatial orientation. The Avastar 88W8797 is ideally suited for tablets and smartphones, enabling communication with next-generation mobile devices, including body sensors for personal health monitoring and remote control systems for home automation.

In general, there are still many problems in the convergence of wireless technology, but the benefits brought about by the convergence are enormous. As technology continues to rise and mature, the general trend of integration will also become unacceptable, and our lives will also break through the "line" system and enter a comprehensive wireless era!

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