Multicast Paging Control for Low-Power 5G Session Activation
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Solution Overview
Problem
Existing 5G mobile communication systems face challenges in efficiently managing multicast broadcast services, particularly in reducing power consumption and processing delays associated with multicast session notifications in user equipment.
Innovation Solution
Implementing a communication control method that includes early paging notification signals and group notifications, allowing user equipment to monitor specific multicast session activations without relying on initial early paging signals, thereby optimizing power usage and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If user equipment monitors early paging notification signals for multicast session activations, then power consumption increases and processing delays occur, but if monitoring is reduced then multicast session notification reliability deteriorates
Solution Approach 1:
The base station performs preliminary actions by determining multicast session activation status and preparing group notification messages before user equipment needs them. The activation status information is transmitted in advance through group notifications, allowing UE to receive notifications proactively rather than continuously monitoring for paging signals.
Solution Approach 2:
The invention extracts the essential information (multicast session activation status) from the complex early paging notification signal mechanism. By transmitting only the necessary activation status information through group notifications, the system removes unnecessary monitoring requirements while maintaining notification reliability.
2Reliability
If user equipment continuously monitors for multicast session notifications, then notification reliability improves, but processing delays increase due to constant monitoring requirements
Solution Approach 1:
The base station determines multicast session activation status and transmits group notification messages containing activation status information in advance. This preliminary action eliminates the need for UE to wait and monitor for paging signals, reducing processing delays while ensuring reliable notification delivery.
3Adaptability or versatility
If the system uses early paging notification signals for multicast session notifications, then notification coverage is improved, but power consumption and processing complexity in user equipment increase
Solution Approach 1:
The invention extracts only the essential activation status information from the early paging notification mechanism and transmits it through simplified group notifications. This reduces the processing complexity and power consumption requirements for UE while maintaining comprehensive notification coverage through the group notification mechanism.
Data Source
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AI summary
A communication control method according to a first aspect is performed by a user equipment in a mobile communication system for providing a multicast service to the user equipment, the communication control method including monitoring a paging message transmitted from a base station. The monitoring includes: monitoring, when an early paging notification signal is received from the base station, a first paging message that calls one or more user equipments being targets of unicast communication; and monitoring, when the user equipment has joined or is interested in a multicast session, a second paging message that notifies that one or more multicast sessions have been activated even when the early paging notification signal has not been received.