China Unicom Beijing has deployed Huawei’s 5G LampSite 300 MHz digital indoor system at the Beijing Long Distance Call Building. The system supports network sharing between China Unicom Beijing and China Telecom Beijing and provides a downlink perceived rate of up to 3.4 Gbps over a single headend in multi-user scenarios.

The 5G LampSite module allows for an ultra-bandwidth of 300 MHz between the 3.3 and 3.6 GHz spectrum of the C-band and 4T4R multi-antenna technology.
https://www.huawei.com/en/press-events/news/2020/3/5g-dis-5g-capital-beijing-unicom