  The Metaverse is driving the next wave of innovation for new opportunities by
replacing the digital world (Internet) with the virtual world through a single,
shared, immersive, persistent 3D virtual space. In this paper, we present
requirements, architecture, standards, challenges, and solutions for Metaverse.
Specifically, we provide Metaverse architecture and requirements, and different
standards for Metaverse which serve as the basis for the development and
deployment. Moreover, we present recent status, challenges such as integration
of AI and Metaverse, security and privacy in Metaverse, etc., and perspectives
and solutions.
