Abstract: The Broadcom BCM4358 is a 2×2 MIMO combination chip that supports 5G Wi Fi (802.11ac wireless standard), integrating the latest technology of Bluetooth and wireless combination chip. The coexistence of wireless and Bluetooth can improve indoor positioning accuracy. It is said that the chip can also solve the interference of multi signal radio waves and supports Android, Windows, and Chrome operating systems. According to data from ABI Research, the global total number of smartphone users will reach 5.6 billion by 2019! And using mobile data primarily focused on video and other content will result in 10 times more data circulation than now

The Broadcom BCM4358 is a 2×2 MIMO combination chip that supports 5G Wi Fi (802.11ac wireless standard), integrating the latest technology of Bluetooth and wireless combination chip. The coexistence of wireless and Bluetooth can improve indoor positioning accuracy. It is said that the chip can also solve the interference of multi signal wireless waves, supporting Android, Windows, and Chrome operating systems.

 

According to data from ABI Research, the global total number of smartphone users will reach 5.6 billion by 2019! The circulation of mobile data, mainly based on video and other content, will be more than 10 times higher than the current level. The growth rate of mobile data traffic will exceed that of the number of users, thanks to the increase in mobile network speed and the increase in the number of users. The improvement of terminal network speed will have a significant promoting effect.

The Broadcom BCM4358 chip combines a 5G WiFi 2×2 MIMO chip and combines two 802.11ac data streams within an 80MHz channel bandwidth through a PCIe interface, achieving a data transmission capability of up to 650Mbps and a Bluetooth chip that improves performance by 50%, while optimizing the coexistence performance of WiFi and Bluetooth. Users can download content at twice the speed, watch videos with less buffering time, and connect multiple Wi Fi and Bluetooth devices simultaneously (such as listening to music and playing games simultaneously) without interfering with each other. In addition, the improvement of positioning accuracy to one meter makes it possible to implement new and optimized indoor positioning services.

In addition to speed improvement, this chip uses an indoor positioning system based on high-precision round-trip time RTT, achieving a positioning capability with an accuracy of up to one meter, making indoor services possible. At the same time, this chip also solves multiple radio frequency interference issues and system compatibility issues (compatible with Android, Windows, and Chrome systems). Of course, the new chip not only improves performance but also has better power control capabilities, allowing mobile terminals to achieve higher battery life.

Main features:

◇ 867 Mbps physical layer transmission rate/80MHz channel bandwidth

◇ Better coexistence performance of Wi Fi and Bluetooth

◇ WLAN dedicated low-power PCIe host interface; Bluetooth specific UART

◇ Combining two 802.11ac data streams within an 80MHz channel bandwidth through PCIe interface

◇ Support for Android, Windows, and Chrome operating systems

◇ RER103 integrated power amplifier (PA), low noise amplifier (LNA), and built-in transceiver switch

◇ Adopting beamforming technology and low-density parity code (LDPC)

Indoor positioning technology based on high-precision round-trip time (RTT)

◇ Botong TurboQAM? Having the highest current data rate (2.4 GHz)

◇ First adoption of arrival angle orientation technology on smartphones

Industry evaluation

“The combination of 5G WiFi and 2×2 MIMO has fully unleashed the potential of today’s smartphones and tablets. These technologies have become an essential requirement for wireless connectivity in high-end mobile devices.” David Recker, Senior Director of Wireless Connectivity Technology at Broadcom, said, “With the help of BCM4358, we have solved serious multi RF interference problems, and RER103 has set higher standards for its performance. This fully reflects Broadcom’s commitment to being the first to launch the most powerful solutions in the market.”

“Broadcom is the first manufacturer to mass produce 2×2 MIMO combination chips specifically for smartphones, and is still striving to promote the application of 802.11ac in all consumer electronics industries,” said Philip Solis, Research Director at ABI Research. “This second-generation innovative technology demonstrates Broadcom’s continued absolute leadership in 2×2 MIMO technology.”