MBS Interest Indication Transmission Control via Periodic Configuration
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Solution Overview
Problem
Current 5G/NR multicast and broadcast services face challenges in efficiently managing user equipment (UE) interest indications, leading to network congestion due to simultaneous or frequent transmissions, which affect service quality and network performance.
Innovation Solution
A communication method that allows user equipment in a mobile communication system to receive configuration information for controlling the transmission of multicast and broadcast service interest indications, including trigger configuration, prohibition timers, and dispersion information to manage when and how these indications are sent, thereby reducing congestion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If user equipment transmits MBS interest indication frequently or simultaneously, then the network can accurately track user interest in multicast and broadcast services, but network congestion occurs and service quality deteriorates
Solution Approach 1:
The base station configures periodic transmission intervals for MBS interest indications, requiring user equipment to transmit only at specified periodic intervals rather than continuously or simultaneously. This periodic action distributes transmissions over time, reducing network congestion while maintaining accurate tracking of user interest in multicast and broadcast services.
Solution Approach 2:
The base station pre-configures transmission conditions, parameters, and rules for MBS interest indications before user equipment begins transmitting. This preliminary configuration establishes clear guidelines for when and how transmissions should occur, preventing simultaneous transmissions and reducing network congestion before it occurs.
2Ease of operation
If user equipment transmits MBS interest indication without configuration control, then transmission simplicity is maintained, but network resource management becomes inefficient
Solution Approach 1:
The transmission control mechanism is segmented into distinct configuration parameters including periodic intervals, trigger conditions, and resource allocation rules. This segmentation allows the system to maintain operational simplicity for user equipment while enabling detailed network resource management through structured configuration parameters that govern different aspects of transmission behavior.
3Loss of time
If multiple user equipments transmit MBS interest indication simultaneously, then individual user interest information is delivered promptly, but network overload occurs
Solution Approach 1:
The system introduces temporal dimensioning by configuring different periodic intervals and trigger conditions for MBS interest indication transmissions. This transforms the problem from a spatial congestion issue (multiple simultaneous transmissions) to a temporal distribution issue, where transmissions are spread across different time dimensions while still delivering individual user interest information promptly.
Data Source
AI summary
A communication method performed by a user equipment in a mobile communication system for providing a multicast and broadcast service (MBS), the communication method including: receiving, from a base station, configuration information configuring a condition under which the user equipment is permitted to transmit, to the base station, an MBS interest indication regarding an MBS session that the user equipment is receiving or is interested in receiving; and performing transmission processing of the MBS interest indication in response to the condition configured by the configuration information being satisfied.