HUAWEI AP4151DN 11AC WAVE2 2X2 DUAL BAND EXTERNAL ANTENNA

Huawei AP4051DN and AP4151DN are new-generation access points that support 802.11ac Wave 2, 2 x 2 MIMO, and two spatial streams. They provide comprehensive service support capabilities and feature high reliability, high security, simple network deployment, automatic AC discovery and configuration, and real-time management and maintenance, which meets network deployment requirements. The AP complies with 802.11n and 802.11ac protocols and can provide gigabit access for wireless users., the AP4051DN and AP4151DN are applicable to commercial chains, medical, warehousing, manufacturing, and logistics environments.

MU-MIMO
The AP supports MU-MIMO. MU-MIMO technology allows an AP to send data to multiple STAs at the same time (currently, most 802.11n/11ac Wave 1 APs can only send data to one STA at a time). The technology marks the start of the 802.11ac Wave 2 era.

GE access
The APs support the 80-MHz bandwidth mode. Frequency bandwidth increase brings extended channels and more sub-carriers for data transmission, and a 2.16-fold rate increase. Support for High Quadrature Amplitude Modulation (HQAM) at 256-QAM increases the 5 GHz radio rate to 867 Mbit/s and the AP rate to 1.267 Gbit/s.

Cloud-based management
Huawei’s Cloud Managed Network (CMN) Solution consists of the cloud management platform, and a full range of cloud managed network devices. The cloud management platform provides various functions including management of APs, tenants, applications, and licenses, network planning and optimization, device monitoring, network service configuration, and value-added services.

High-density boost technology
Huawei uses the following technologies to address challenges in high-density scenarios, including access problems, data congestion, and poor roaming experience:

- Interference suppression
Huawei’s Clear Channel Assessment (CCA) optimization technology reduces the possibility of air port resources shared by multiple devices, allows higher user access, and improves the throughput.

- Air interface performance optimization
In high-density scenarios where many users access the network, an increased number of low-rate STAs consumes more resources on the air port, reduces the AP capacity, and lowers user experience. Therefore, Huawei APs will check the signal strength of STAs during access and rejects access from weak-signal STAs. At the same time, the APs monitor the rate of online STAs in real time and forcibly disconnect low-rate STAs so that the STAs can re-associate with APs that have stronger signals. The terminal access control technology can increase air interface use efficiency and allow access from more users.

- 5G-prior access (Band steering)
The APs support both 2.4G and 5G frequency bands. The 5G-prior access function enables an AP to steer STAs to the 5 GHz frequency band first, which reduces load and interference on the 2.4 GHz frequency band, improving the user experience.

- Load balancing between APs
After the load balancing function is enabled, the AC distributes users evenly to APs based on user quantity and traffic volume. Traffic load is therefore balanced among APs to ensure stable AP performance.

- Smart roaming
Smart roaming technology is based on 802.11k, 802.11v, and 802.11r technologies and allows STAs to connect to APs with stronger signals, improving user experience and the overall performance of the wireless network.

- Agile Beam
Agile antenna polarization beam automatic adaption.

Wired and wireless dual security guarantee
To ensure data security, Huawei APs integrate wired and wireless security measures and provide comprehensive security protection.

- Authentication and encryption for wireless access
The APs support WEP, WPA/WPA2–PSK, WPA/WPA2–802.1x, and WAPI authentication/encryption modes to ensure the security of the wireless network. The authentication mechanism is used to authenticate user identities so that only authorized users can access network resources. The encryption mechanism is used to encrypt data transmitted over wireless links to ensure that the data can only be received and parsed by expected users.

- Analysis of non-Wi-Fi interference sources
Huawei APs can analyze the spectrum of non-Wi-Fi interference sources and identify them, including baby monitors, Bluetooth devices, digital cordless phones (at the 2.4 GHz frequency band only), wireless audio transmitters (at both the 2.4 GHz and 5 GHz frequency bands), wireless game controllers, and microwave ovens. Coupled with Huawei eSight, the precise locations of the interference sources can be detected, and the spectrum of them displayed, enabling the administrator to remove the interference in a timely manner.

- Rogue device monitoring
Huawei APs support WIDS/WIPS, and can monitor, identify, defend, counter, and perform refined management on the rogue devices, to provide security guarantees for air interface environment and wireless data transmission.

- AP access authentication and encryption
The AP access control ensures the validity of APs. The CAPWAP link protection and DTLS encryption provide security assurance, improving data transmission security between the AP and the AC.

Automatic radio frequency calibration
Automatic radio frequency calibration allows an AP to collect signal strength and channel parameters of surrounding APs and generate AP topology according to the collected data. Based on interference from authorized APs, rogue APs, and non-Wi-Fi interference sources, each AP automatically adjusts its transmit power and working channel to make the network operate at the optimal performance. In this way, network reliability and user experience are improved.

Automatic application identification
Huawei APs support smart application control technology and can implement visualized control on Layer 4 to Layer 7 applications.

- Traffic identification
Coupled with Huawei ACs, the APs can identify over 1,600 common applications in various office scenarios. Based on the identification results, policy control can be implemented on user services, including priority adjustment, scheduling, blocking, and rate limiting to ensure efficient bandwidth resource use and improve the quality of key services.

- Traffic statistics collection
Traffic statistics of each application can be collected globally, by SSID, or by user, enabling the network administrator to know application use status on the network. The network administrator or operator can implement visualized control on service applications on smart terminals to enhance security and ensure effective bandwidth control.