WD5M183959AG Huawei Huawei Distributed Base Station Radio Remote Unit

The Huawei WD5M183959AG is a Remote Radio Unit (RRU) from the RRU 3959a series, designed to operate on the 1800 MHz frequency band. This unit handles radio frequency transmission and reception functions at cell sites, connecting to the baseband unit via fibre optic CPRI links to deliver LTE mobile network coverage.

The RRU 3959a is deployed as part of Huawei’s distributed base station architecture, where remote radio units are mounted at the antenna mast while baseband processing is centralised. This configuration reduces feeder cable losses and improves overall network efficiency for 1800 MHz LTE deployments.

This is a legacy RRU model from Huawei’s earlier LTE portfolio. While superseded by newer multi-band and massive MIMO radio units, the RRU 3959a remains in service across many established 4G networks and is sought after for maintenance, capacity expansion, and replacement purposes.

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