Partial SPS Resource Release via DCI
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Solution Overview
Problem
Current wireless communication networks face inefficiencies in managing the release of Semi-Persistent Scheduling (SPS) resources, particularly in New Radio (NR) standards, where releasing SPS resources often requires a single DCI message for each configuration, leading to overhead and inflexibility in resource allocation.
Innovation Solution
A method and system for partially releasing SPS resources by generating and transmitting specific information to User Equipments (UEs) indicating the release of SPS resources associated with single or multiple SPS IDs, allowing for flexible release of both downlink and uplink SPS resources, using DCI or MAC Control Elements, and enabling acknowledgement mechanisms for successful release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single DCI message is used for each SPS configuration activation and release, then the release procedure is simple and straightforward, but the control channel overhead increases and flexibility in resource allocation is reduced
Solution Approach 1:
The patent combines multiple SPS configuration releases into a single DCI message by introducing a list of SPS configuration indices. Instead of sending separate DCI messages for each configuration release, the network can now release multiple configurations simultaneously using one consolidated message, thereby reducing control channel overhead while maintaining operational simplicity.
Solution Approach 2:
The DCI message is enhanced to serve multiple functions: it can activate, release, or modify SPS configurations using a unified structure with a list of configuration indices. This multi-functional approach allows the same message format to handle different operations on multiple configurations, reducing the need for separate specialized messages.
2Ease of operation
If all SPS resources associated with an SPS ID are released together, then the release mechanism is straightforward, but the flexibility to release only specific resources is lost
Solution Approach 1:
The patent segments the SPS resources associated with an SPS ID into individually addressable units. By introducing a list of SPS resource indices that can be selectively specified, the system allows granular release of individual resources or subsets of resources within a configuration, rather than releasing all resources together. This segmentation enables precise control over which resources are released.
Solution Approach 2:
The release mechanism applies local quality by allowing different release actions on different resources within the same SPS configuration. Each resource in the list can be individually targeted for release, enabling the network to release only specific resources that need to be freed while preserving others that remain needed, thus achieving localized resource management.
3Reliability
If multiple SPS configurations are released using separate DCI messages, then each configuration can be released independently, but the number of control messages increases
Solution Approach 1:
The patent merges multiple independent configuration release operations into a single DCI message by incorporating a list of SPS configuration indices. This allows the network to release multiple configurations atomically in one message, reducing the total number of DCI messages transmitted while maintaining the independence of each configuration's release status through the indexed list.
4Productivity
If SPS resources are pre-configured for multiple services, then resource allocation efficiency is improved, but the ability to dynamically release specific resources for specific services is reduced
Solution Approach 1:
The patent enables segmentation of pre-configured SPS resources by introducing selective release through indexed lists. The network can now identify and release specific resources within a pre-configured set by referencing their indices, allowing dynamic adaptation to changing service requirements while maintaining the efficiency benefits of pre-configuration.
Solution Approach 2:
The release mechanism becomes dynamic by allowing the network to selectively release resources based on current service needs. The list of SPS resource indices can be adaptively populated to release only the resources needed at any given moment, transforming the static pre-configuration into a dynamically adjustable resource management system.
Data Source
AI summary
Embodiments of the present disclosure provide a method, a network node, and a computer program product for handling release of semi-persistent scheduling, SPS, resources configured for one or more user equipments, UEs, in a wireless communication network. The method is performed in a network node in the wireless communication network. The method includes generating information indicating the release of the one or more SPS resources. The one or more SPS resources are a subset of SPS resources associated with a single SPS identifier, ID, or multiple SPS IDs configured for the one or more UEs. Further, the method includes transmitting the DCI message to the one or more UEs for causing the one or more UEs to release the one or more SPS resources.