MBS System Information Signaling for Targeted Multicast Reception
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Solution Overview
Problem
Existing 5G networks face challenges in efficiently managing multicast broadcast services (MBS) system information and configuration signaling, particularly in handling beam-specific, distributed unit-specific, and bandwidth part-specific parameters for MBS services, which can lead to inefficiencies in data transmission and reception.
Innovation Solution
A method for multicast broadcast services (MBS) system information and configuration signaling, involving the reception of system information blocks (SIBs) and MBS control channels, including scheduling information for MBS traffic channels, with support for beam-specific, distributed unit-specific, and bandwidth part-specific parameters, enabling efficient data transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If MBS system information is transmitted to all UEs in a cell, then all UEs can receive MBS services, but non-interested UEs perform unnecessary processing consuming network resources
Solution Approach 1:
The patent introduces cell-specific, beam-specific, and distributed unit (DU)-specific parameters to indicate which UEs should receive MBS system information. This selective indication mechanism ensures that only interested UEs within specific cells, beams, or DUs process MBS transmissions, eliminating unnecessary processing by non-interested UEs and optimizing network resource utilization.
2Area of stationary object
If MBS transmissions are sent across all cells and beams, then service coverage is maximized, but resource utilization becomes inefficient
Solution Approach 1:
The patent employs localized indication parameters at cell, beam, and distributed unit levels to precisely control MBS transmission scope. This enables the system to expand service coverage to only those areas where interested UEs exist, rather than broadcasting to all cells and beams, thereby maximizing coverage efficiency while minimizing wasteful resource consumption in areas without interested receivers.
3Adaptability or versatility
If comprehensive MBS configuration signaling is provided, then all possible MBS services can be supported, but signaling overhead increases
Solution Approach 1:
The patent implements a hierarchical signaling structure with cell-specific, beam-specific, and DU-specific parameters that enable selective configuration of MBS services. This localized approach allows the system to provide comprehensive service support capability where needed while avoiding unnecessary signaling overhead in areas or for services that are not required, achieving versatile service support with optimized signaling efficiency.
Data Source
AI summary
A method of multicast broadcast services (MBS) system information and configuration signaling includes receiving, by a user equipment (UE) from a base station (BS), a plurality of system information blocks (SIBs) including a first SIB associated with one or more MBS services, wherein the first SIB comprises scheduling information for reception of MBS control configuration parameters; receiving an MBS control channel comprising scheduling information for reception of an MBS traffic channel via a first cell; and receiving MBS data based on the scheduling information for reception of the MBS traffic channel.