What is the role of the Central Unit (CU) in Cloud RAN architecture?

Prepare for the Ericsson Cloud RAN Exam. Practice with flashcards and multiple-choice questions, each with hints and explanations. Master the topics and pass confidently!

The Central Unit (CU) in Cloud RAN architecture is primarily responsible for managing higher layer protocols and the overall operation of the RAN. This encompasses handling tasks such as radio resource management, control signaling, and coordinating the functionalities of the RAN. The CU acts as the brain of the Cloud RAN system, facilitating the interaction between the Radio Units (RUs) and the core network while ensuring that the higher-layer protocols, which are essential for data transmission and user experience, function correctly.

The CU does not directly interact with user devices, as that is typically managed by other components of the RAN. It also does not engage in signal distribution, as the RU focuses on RF signal management. While security is an essential aspect of any network, the CU's role is not specifically to provide physical security; rather, it focuses on the operational and protocol aspects of the RAN. This specialization allows for more efficient and flexible network management in a cloud environment.

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