MBS Session Resume Control After Cell Reselection
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Solution Overview
Problem
Existing communication networks face challenges in efficiently managing multicast broadcast services, particularly in scenarios involving multiple wireless devices and varying network capabilities, leading to suboptimal resource allocation and service delivery.
Innovation Solution
Implementing a service-based architecture within the core network that allows for dynamic service discovery and interaction between network functions, enabling efficient management of multicast broadcast services by utilizing network repository functions (NRF) to facilitate communication and resource allocation based on device capabilities and traffic conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a service-based architecture with network repository functions is implemented, then service management efficiency and resource allocation are improved, but network complexity and implementation difficulty increase
Solution Approach 1:
The Network Repository Function (NRF) serves as an intermediary component that manages service information and facilitates interactions between network functions. The NRF stores service registry data and provides service discovery capabilities, acting as a central mediator that improves service management efficiency without requiring direct complex interactions between all network function components.
Solution Approach 2:
The service-based architecture implements universal service management mechanisms that can handle multiple service types (multicast broadcast services, unicast services, etc.) through a common framework. The NRF provides multi-functional capabilities including service registration, service discovery, and service matching, reducing the need for separate management systems for different service types.
2Adaptability or versatility
If dynamic service discovery and interaction are enabled, then adaptability to different device capabilities and traffic conditions is improved, but information processing requirements and system overhead increase
Solution Approach 1:
The network functions and services are registered with the NRF in advance, creating a pre-established service registry that contains information about available services, their capabilities, and their requirements. This preliminary registration allows the system to quickly match services with appropriate devices and conditions without requiring extensive real-time information processing when services need to be delivered.
Solution Approach 2:
The service-based architecture implements feedback mechanisms where network functions report their status, capabilities, and performance metrics to the NRF. The NRF uses this feedback information to dynamically update service registry data and make informed decisions about service allocation and management, enabling adaptability while optimizing information processing through selective data collection and reporting.
Data Source
AI summary
A method can include receiving, by a wireless device from a first base station, a radio resource control (RRC) release message indicating transition of the wireless device from an RRC connected state to an RRC inactive state or an RRC idle state. The method can also include performing a cell reselection of a cell of a second base station. The method can further include determining, after the cell reselection, that a configuration in the cell for a multicast and broadcast service (MBS) session that the wireless device has joined is not supported for the RRC inactive state or the RRC idle state. The method can additionally include sending, in the RRC inactive state or the RRC idle state to the second base station and based on the determining associated with the MBS session, an RRC resume request comprising an indication of a cause for the RRC resume request.