MBS Resource Region Configuration for Unicast BWP Coexistence
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Solution Overview
Problem
Existing wireless communication systems face challenges in managing radio resources for multicast and broadcast services in high frequency bands, particularly in 5G networks, where distributed functional splits among remote radio heads and baseband processing units require efficient resource management methods to handle varying connection states of terminals.
Innovation Solution
A method and apparatus for managing radio resources in a communication system that includes configuring multicast and broadcast service (MBS) bandwidth parts (BWPs) based on terminal operation states, using MBS resource regions, and supporting handover and dual connectivity operations to ensure continuous MBS communications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If distributed functional split is used among remote radio heads and baseband processing units, then system flexibility and scalability are improved, but resource management complexity increases
Solution Approach 1:
The patent segments the radio protocol functions into distributed remote radio heads and centralized baseband processing units, allowing independent management of multicast/broadcast and unicast resources. This segmentation enables separate resource pools for different service types, reducing the complexity of managing diverse resources in a distributed architecture.
Solution Approach 2:
The patent creates a universal resource management framework that handles both multicast/broadcast services and unicast services through a common architecture. The baseband processing unit provides centralized control for multiple service types, while remote radio heads execute unified resource allocation decisions, reducing overall system complexity despite distributed deployment.
2Reliability
If separate resource management for multicast/broadcast and unicast services is implemented, then service quality is improved, but control signaling overhead increases
Solution Approach 1:
The patent merges the control functions for multicast/broadcast and unicast services at the baseband processing unit level. A single control entity manages both service types, consolidating signaling paths and reducing redundant control messages. The unified control approach maintains service quality by coordinating resource allocation across both service types while minimizing overhead.
3Productivity
If MBS BWP is configured within unicast BWP during connected state, then resource utilization is improved, but interference between services may increase
Solution Approach 1:
The patent applies local quality by configuring the MBS bandwidth part within specific frequency resources of the unicast bandwidth part only when needed. The system dynamically adjusts the local resource allocation based on service requirements, allowing MBS services to utilize portions of unicast resources without causing sustained interference. This localized configuration optimizes resource utilization while minimizing harmful effects through spatial and spectral separation.
Data Source
AI summary
An operation method of a terminal in a communication system may comprise: receiving, from a base station, first configuration information of a unicast BWP; receiving, from the base station, second configuration information of a multicast and broadcast service (MBS) resource region; receiving control information on an MBS PDCCH within the MBS resource region indicated by the second configuration information; receiving MBS data on an MBS PDSCH within the MBS resource region, the MBS PDSCH being indicated by the control information; and receiving unicast data in the unicast BWP indicated by the first configuration information.