Frame Structure: The AMIA frame is 3U high. It can be installed in a standard 19 - inch rack and also supports stacking installation, which is convenient for flexible deployment. Internally, it contains a backplane for handling high - bandwidth connections between plugins, as well as fans and a rear backplane. The rear backplane is responsible for internal communication and DC power supply. Functional Configuration: It can support one or two Nokia AirScale Common (asik) plugins for transmission interfaces and centralized processing, and one to six Nokia AirScale Capacity (abil) plugins for baseband processing and providing optical interfaces for wireless devices. The minimum configuration is a sub - rack with one asik and one abil. This configuration method allows for flexible deployment according to different network requirements. Network Support: It supports 4G and 5G networks, as well as CPRI and ECPRI interfaces. In addition, it supports multiple standards such as GSM, WCDMA, FDD - LTE, TDD - LTE, LTE - A Pro, and 5G. It can realize the integrated deployment of multi - standard networks, reducing the complexity and cost of base station equipment. Architecture Support: It supports distributed RAN, centralized RAN, and cloud RAN architectures. It can be flexibly deployed according to different network planning and operation requirements, adapting to different network scenarios and service models.