The new year is here! Ruijie Wi-Fi 7 high-density AP RG-AP9520-RDX officially debuts with "dynamic beamforming antenna"!

At the beginning of the new year, Ruijie Networks' new generation of Wi-Fi 7 high-density wireless access point RG-AP9520-RDX equipped with smart antennas was officially launched. This product adopts a three-radio design, built-in Al Radio smart radio, 8 spatial streams in the whole machine, and a rate of up to 6.453Gbps . It is suitable for ordinary indoor scenarios such as higher education, government, general education, finance, and commerce. It can also meet high-density wireless coverage scenarios such as large open-plan office areas, medium and large lecture halls, library study rooms, indoor venues, and indoor conference halls.

With the acceleration of digital transformation, wireless networks face many challenges in high-density scenarios. For example, in large office scenarios, densely deployed APs can easily cause mutual interference and affect network performance. When there are too many users, terminals will occupy AP resources, resulting in performance degradation and difficulty for new users to access. In large venues such as libraries and gymnasiums, due to the high per capita density and high floor heights, ordinary APs are difficult to effectively cover, which can easily cause wireless network freezes.

To address these issues, Ruijie Wi-Fi 7 high-density AP RG-AP9520-RDX has put a lot of effort into antenna design. Through three major design features, it provides a stable wireless network for high-density scenarios.

Feature 1: Dynamic beamforming antenna based on wireless deployment environment

As Ruijie's new generation of high-density wireless AP, RG-AP9520-RDX is equipped with both external antennas and built-in smart antennas. The external antennas can support RG-AP9520-RDX deployment in venues with a height of more than 10 meters, such as stadiums, conference halls, and ceiling deployment scenarios for waiting for buses/airports, forming a cellular deployment to reduce interference between APs and improve the performance of the entire network.

The intelligent built-in antenna uses the shaped antenna technology . The dynamic beamforming antenna senses the environment through AI Radio and dynamically adjusts the direction and shape of the beam, that is, the AP antenna form, according to environmental changes and user needs to adapt to different coverage scenarios, automatically adjust the signal coverage range, and avoid mutual interference between APs:

AP load terminal density-based shaped antenna

When the terminal density within the AP coverage area is low, increase the antenna angle to cover a larger area . When the terminal density within the AP coverage area is high, reduce the antenna angle to ensure wireless quality within the coverage area.

Antenna shaped based on physical space height

In a high-density wireless environment, AR senses the height of the coverage space and adjusts the antenna angle to control the coverage range in the high-density environment.

AP-based deployment spacing and shaped antennas

In a high-density wireless environment, the distance between APs is small. AR senses the distance between APs and adjusts the antenna angle to control the coverage range to avoid mutual interference between APs.

AP-based deployment of shaped antennas

Sense the ceiling or wall installation mode of the AP and adjust the coverage angle of the antenna.

Feature 2: Smart beam antenna, accurately finds poor-quality terminals, and improves the performance of poor-quality terminals by 30%

In addition to adjusting the shape of the antenna according to the deployment environment, the RG-AP9520-RDX also uses smart beam antennas and priority gain algorithms to accurately identify and optimize poor-quality terminals, thereby improving the performance and stability of the entire network. Smart beam antennas use AI Radio technology to monitor terminal performance in the network in real time. By analyzing key indicators such as the signal strength and transmission rate of the terminal, the smart antenna can quickly identify terminals with poor performance. Once poor-quality terminals are identified, the smart beam antenna will automatically adjust the signal strength and coverage of the AP to prioritize providing stronger signal gain for these terminals. This dynamic adjustment can significantly improve the performance of poor-quality terminals. Actual test results show that the performance of poor-quality terminals can be improved by 30%.

Feature 3: Unequal power division feeding technology, optimizing the main lobe to side lobe ratio, and improving network anti-interference performance

In high-density scenarios such as indoor venues, in order to meet the access needs of a large number of users, the density of AP deployment can usually only be increased within a limited space. However, the increase in the number of APs will cause their coverage to overlap, which in turn aggravates the interference between them. In addition, due to the high height of the venue, the area that a single AP needs to cover is relatively small. Therefore, in traditional venue network solutions, directional antennas are usually used to reduce the coverage range by narrowing the beam, thereby reducing the interference between adjacent APs.

In order to further improve the anti-interference ability between APs, we often use array antennas to further narrow the beam. However, the traditional equal-amplitude excitation array has an obvious disadvantage, that is, the sidelobe level is high, which will seriously affect the network performance and cannot meet the actual engineering requirements. Therefore, it is particularly important to effectively suppress the sidelobe while improving the directivity of the array antenna.

RG-AP9520-RDX introduces innovative large-ratio unequal power-division feeding technology in passive array antennas . By adjusting the excitation amplitude of each unit in the antenna array and optimizing the current distribution, the main signal is made stronger and the side signal is made weaker, thereby improving the contrast between the main and side lobes, thereby effectively reducing the side lobe level and achieving the effect of low side lobes, thereby narrowing the beam and limiting the coverage of the AP to a narrower area. This not only effectively reduces the interference between adjacent APs, but also improves the anti-interference performance of the overall network.

Conventional array

Low Sidelobe Array

In addition to the above three features, RG-AP9520-RDX still inherits other excellent qualities of Ruijie WLAN products:

01 AI Radio intelligently guides roaming, so mobile terminals don’t lose connection: Built-in AI Radio radio supports 2.4GHz and 5GHz dual-frequency scanning, and can accurately guide terminals to access wireless APs through roaming enhancement technology. Whether the terminal is moving indoors or roaming across regions, it can ensure stable network connection and achieve a seamless roaming experience with low latency and no lag.

02 New digital twin applications improve WLAN operation and maintenance efficiency by 30%: Supports WIS cloud network configuration, no on-site debugging is required, greatly saving deployment time. With the help of WIS digital twin operation and maintenance maps, administrators can intuitively view the fault location of Wi-Fi devices, realize intelligent operation and maintenance functions such as local network optimization, business network optimization and VIP area network optimization, and significantly improve network operation and maintenance efficiency and user experience.

03 Support Ruijie's simplified Ethernet all-optical solution: can be directly connected to the star host through the optical-electrical hybrid cable, realize ultra-kilometer data transmission and PoE power supply, save the deployment of weak current rooms in buildings, simplify network wiring, and reduce the cost of optical network construction and operation and maintenance. Friendly support for future business development and network elasticity upgrade.

The launch of RG-AP9520-RDX is an important innovation of Ruijie in the field of wireless networks. With its intelligent antenna technology, poor-quality terminal optimization function and other innovative features, RG-AP9520-RDX can provide a stable and efficient wireless network experience for high-density scenarios such as large open-plan offices and venues. In the future, Ruijie Networks will continue to exert its strength in the field of wireless networks, continue to be user-oriented, and continue to innovate to provide users in various industries with a "rock-solid" wireless network!