  Mobile augmented reality (MAR) applications extended in the metaverse could
provide mixed and immersive experiences by amalgamating the virtual and
physical world. However, the joint consideration between MAR and metaverse
seeks the reliable and high quality support for foreground interactions and
background contents from these applications, which intensifies their
consumption in energy, caching and computing resources. To tackle these
challenges, a more flexible request assignment and resource allocation with
more efficient processing are proposed in this paper through anchoring
decomposed metaverse AR services at different edge nodes and proactively
caching background metaverse region models embedded with target Augmented
Reality Objects (AROs).Advanced terminals are also considered to further reduce
service delay at an acceptable cost of energy consumption.We then propose and
solve a joint optimization problem that explicitly considers the balance
between service delay and energy consumption under the constraint of user
perception quality in a mobility event.By also explicitly taking into account
capabilities of user terminals, the proposed optimized scheme is compared to
its terminal oblivious version in this paper. According to a wide set of
numerical investigations, the proposed scheme owns advantages in service
latency and energy efficiency over other nominal baseline schemes which neglect
capacities of terminals, user physical mobility, service decomposition and the
inherent multi modality of the metaverse MAR service.
