Multicast and Broadcast Sessions for Multi-PLMN RAN Sharing

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently providing multicast and broadcast services across multiple cellular networks while maintaining battery life and reducing power consumption in user equipment devices.

Innovation Solution

Implementing a mechanism for identifying that multiple cellular networks wish to perform session setup for the same multicast or broadcast service, allowing a cellular base station to configure a single session instead of separate sessions for each network, and utilizing a shared/unified temporary mobile group identifier framework.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate multicast and broadcast services sessions are configured for each cellular network, then network service coverage is improved, but device complexity and power consumption increase

Engineering Contradiction:

Improvenetwork service coverageVSAvoidsession configuration complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges multiple separate multicast and broadcast services sessions into a single unified session that can serve multiple cellular networks simultaneously. The base station configures one session that is shared across different networks, eliminating the need for separate sessions for each network while maintaining comprehensive service coverage.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified session design enables a single session to perform multiple functions by serving different cellular networks with the same multicast and broadcast services. The session configuration becomes universal, allowing the same resources to be utilized across multiple networks rather than requiring network-specific configurations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If separate multicast and broadcast services sessions are configured for each cellular network, then network-specific service optimization is improved, but power consumption in user equipment increases

Engineering Contradiction:

Improvenetwork-specific service optimizationVSAvoidpower consumption in user equipment

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent combines multiple network-specific sessions into a single unified session, reducing the total number of sessions that user equipment must manage. This merging reduces processing requirements and power consumption while maintaining the ability to optimize services for different networks through the unified session configuration.

Inventive Principle:

Principle #5Merging (Combining)

3Adaptability or versatility

If separate multicast and broadcast services sessions are configured for each cellular network, then network independence is improved, but resource utilization efficiency deteriorates

Engineering Contradiction:

Improvenetwork independenceVSAvoidresource utilization efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The patent merges resource allocation across multiple networks into a unified framework where a single session shares resources efficiently. This approach improves resource utilization by eliminating duplicate allocations while maintaining network independence through logical separation of network identities within the unified session.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The unified session design creates a universal resource allocation mechanism that serves multiple networks simultaneously, improving overall resource utilization efficiency. The same physical resources are utilized by multiple networks through the single session, eliminating waste from duplicate allocations.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS20250275013A1Multicast and Broadcast Services in Radio Access Network Sharing Deployments

Publication Date: 2025.08.28 APPLE INC

AI summary

This disclosure relates to techniques for providing multicast and broadcast services in a wireless communication system with radio access network sharing. A cellular base station that is associated with multiple public land mobile networks may receive multicast and broadcast services session setup information for a multicast and broadcast services session. The cellular base station may determine that the session is associated with multiple public land mobile networks. The cellular base station may configure the multicast and broadcast services session that is associated with the multiple public land mobile networks.