MBS SPS Configuration and Activation for 5G Resource Management
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Solution Overview
Problem
There is a lack of clear methods for base stations to configure and manage semi-persistent scheduling (SPS) radio resources for transmitting multicast and/or broadcast services (MBS) data, which is essential for efficient content delivery in 5G wireless communications.
Innovation Solution
A base station can transmit an MBS SPS configuration to user equipment (UE) for receiving MBS data on SPS radio resources, providing an indication to activate receiving the data, and manage acknowledgments, using dedicated or multicast/broadcast transmissions, with distinct formats for MBS and unicast SPS activation commands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If semi-persistent scheduling (SPS) radio resources are used for transmitting multicast and/or broadcast services (MBS) data, then resource allocation efficiency is improved, but the complexity of configuring and managing SPS resources increases
Solution Approach 1:
The patent applies universality by enabling SPS radio resources to serve dual purposes: both unicast data transmission and multicast/broadcast service (MBS) data transmission. The base station can configure SPS resources that are dynamically activated for different service types, allowing the same physical resources to be shared between unicast and multicast/broadcast functions. This multi-functional approach improves resource allocation efficiency while managing complexity through unified resource pools.
Solution Approach 2:
The patent implements dynamics through dynamic activation and deactivation of SPS radio resources based on service requirements. The base station can dynamically switch SPS resources between unicast and multicast/broadcast modes using activation commands, allowing flexible adaptation to changing traffic patterns and service demands without permanent reconfiguration, thus balancing efficiency gains with manageable complexity.
2Reliability
If SPS radio resources are activated for MBS data transmission, then data delivery reliability is improved, but the overhead of activation commands and configuration signaling increases
Solution Approach 1:
The patent applies merging by combining the configuration and activation of SPS resources into a unified process. The base station transmits configuration information and activation commands through integrated signaling mechanisms, reducing the separation between configuration overhead and activation overhead. This consolidation ensures reliable data delivery through proper resource setup while minimizing total signaling overhead by eliminating redundant separate procedures.
3Adaptability or versatility
If distinct formats for MBS and unicast SPS activation commands are used, then service differentiation is improved, but the complexity of command format management increases
Solution Approach 1:
The patent applies local quality by introducing service-specific characteristics (distinct formats) only where needed for MBS activation commands, while maintaining compatibility with existing unicast SPS commands for their specific use cases. The differentiation is localized to the activation phase for MBS services, allowing the system to maintain service differentiation for multicast/broadcast while avoiding unnecessary complexity in other aspects of SPS management where unified formats suffice.
Data Source
AI summary
A base station can implement a method for managing transmission of multicast and/or broadcast services (MBS) using semi-persistent scheduling (SPS). The method includes: transmitting (1702), to a user equipment (UE), a configuration for receiving MBS data on SPS radio resources; providing (1704), to the UE, an indication to activate receiving the MBS data in accordance with the configuration; and transmitting (1706), to the UE, the MBS data in accordance with the configuration.