4G FDD dual-carrier Femtocell is an integrated base station based on LTE technology, which supports access to the backbone network through wired backhaul, provides LTE access for terminals, completes voice and data service transmission, and realizes indoor Wireless broadband coverage.

4G FDD dual-carrier Femtocell are usually connected to the LTE core network through a non-secure domain; the network management system centrally manages the equipment; the security gateway implements data packet encryption, and the connection between the base station equipment and the core network must pass through the security gateway through a The ingress gateway (GW) completes the relay between the base station equipment and the MME/SGW, completes the convergence of the signaling plane, and reduces the impact on the core network. Figure 1-1 shows the network structure of the 4G Residential Femtocell accessing the LTE network.

• Support 1Gbps electrical interface.
• Support up to 4 channels of LTE FDD transceiver function.
• Single channel supports two-carrier LTE FDD applications.
• A single channel can transmit up to 125mW (21dBm ) power.
• Support built-in antenna configuration.
• Support PoE positive 48V DC power supply.
• Support device self-test, equipped with self-test LED .Provide operation and maintenance functions through network management ( OMCB/LMT ): configuration management, fault management, performance management, version management, front-end and back-end communication management, and diagnosis management.

      Hardware Structure

      Software Structure

The Unity™ LTE FDD Dual-carrier Femtocell are located at the bottom and top of the device. For interface descriptions, see Table 4-4.