Question: What is a key challenge in deploying a high-density access node infrastructure to meet future performance objectives, and how can RAN sharing help address it?
Option 1: Managing increased energy consumption, which can be mitigated by using renewable energy sources.
Option 2: Ensuring seamless handovers between different network operators, which can be achieved through improved signaling protocols.
Option 3: Acquiring sufficient spectrum and antenna locations, which can be alleviated by sharing NG-RAN resources among multiple network operators.
Option 4: Maintaining security and privacy for subscribers in a shared network environment, which requires additional security mechanisms.
Explanation: The question highlights the challenge of deploying high-density access node infrastructure due to spectrum and antenna location constraints. RAN sharing is presented as a solution that allows multiple network operators to share NG-RAN resources, thereby alleviating these challenges. This option correctly identifies the key benefit of RAN sharing in addressing deployment challenges.