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一个BBU可连接多个RRU,从而进一步提高基带池共享效率。分布式基站可实现更大容量BBU集中放置,更大程度地节省站址资源。传输专业需要解决BBU集中放置后和RRU之间的传送问题。随着OTN的广泛商用,ITU标准和业界均提出了CPRIoverOTN的承载需求。
One BBU can connect multiple RRUs to further improve the efficiency of baseband pool sharing. Distributed base stations can be more centralized BBU placement, to a greater extent to save site resources. The transmission specialty needs to solve the transmission problem between the BBU and the RRU when it is centrally placed. With the widespread commercial use of OTN, ITU standards and the industry have proposed the CPRIoverOTN bearer needs.