Configured Grant Uplink Resource Group Indication for Capacity Reuse
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Solution Overview
Problem
The fixed allocation of uplink resources by access network devices to terminal devices in configured grant (CG) manner fails to adapt to dynamically variable service data sizes, leading to resource wastage and network capacity inefficiency.
Innovation Solution
Terminal devices indicate unused resource groups to the access network device using bitmap or position information, allowing flexible resource allocation and reuse among devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the access network device allocates a fixed size uplink resource to the terminal device in configured grant manner, then the terminal device can perform periodic uplink transmission, but the uplink resource cannot flexibly match dynamically variable service data size, causing resource waste and affecting network capacity
Solution Approach 1:
The patent divides the uplink resource into multiple resource groups, where each resource group contains one or more resources. The terminal device can selectively indicate which resource groups are unused, enabling granular resource management and reducing waste while maintaining periodic transmission capability
Solution Approach 2:
The patent introduces dynamic resource indication mechanisms including bitmap-based indication and compact indication methods. The terminal device dynamically indicates unused resource groups based on actual service data size, allowing the fixed allocated resource to adapt flexibly to varying service requirements
2Adaptability or versatility
If the access network device configures a large quantity of uplink resources for the terminal device, then the terminal device can handle large service data, but a waste of uplink resources is caused when service data size is small
Solution Approach 1:
The patent implements a feedback mechanism where the terminal device sends uplink control information to indicate unused resource groups back to the access network device. This feedback enables the network to reallocate wasted resources to other terminal devices, achieving adaptive resource management across the network
Solution Approach 2:
The patent changes the resource indication parameter from a fixed allocation mode to a dynamic indication mode. By using bitmap or compact indication parameters, the system can precisely indicate the actual used and unused resource groups, allowing resource allocation to adapt to changing service data size requirements
Data Source
AI summary
A communication method and apparatus are provided, which relate to the field of communication technologies, so that when an access network device configures an uplink resource for a terminal device, a waste of uplink resources can be reduced, and a network capacity can be improved. The method includes: receiving first indication information from the access network device, and sending second indication information to the access network device. The first indication information indicates a transmission resource configured by the access network device for the terminal device, and the transmission resource includes a plurality of resources. The second indication information indicates a first resource group, and the first resource group includes one or more resource groups not used by the terminal device. Each resource group includes a plurality of resources, and the first resource group is a part or all of the transmission resource.