Reducing the Bandwidth requirement between Base Band unit and Remote Radio Head in Cloud RAN scenario?

Question

In the case of Cloud RAN scenario, the bandwidth requirement between Cloud Base Band and the distributed RRH is very high.
i) What is the maximum percentage reduction in bandwidth possible through techniques such as CPRI compression and what is the impact of such techniques on performance.
ii) What are the new protocols that industry is working on (vis. a vis. CPRI or OBSAI) to achieve lower bandwidth requirement between Base Band and Remote Radio Head.

Comments

I wanted to answer this question but my cloud knowledge is very limited, lets see if someone knows about the cloud i.e. C-RAN.

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