Configured Grant Resource Reporting for Uplink Reallocation
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Solution Overview
Problem
Uplink data sent by terminal devices often uses only a portion of allocated resources, leading to resource waste in configured grant (CG) transmissions.
Innovation Solution
A method for terminal devices to report used or unused CG resources, allowing network devices to adjust resource allocation and reduce waste by reallocating unused resources to other devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If configured grant resources are allocated to terminal devices for periodic uplink transmission, then service reliability is improved, but resource waste occurs when terminal devices use only a portion of allocated resources
Solution Approach 1:
The patent implements a feedback mechanism where terminal devices report unused CG resource information to the network device. The network device receives this feedback and uses it to dynamically adjust future resource allocations, thereby reducing resource waste while maintaining the reliability benefits of configured grant transmissions.
Solution Approach 2:
The patent introduces dynamic resource allocation adjustments based on reported usage patterns. The network device modifies CG resource allocations in subsequent periods according to the feedback received, transitioning from static to dynamic resource management to optimize resource utilization while preserving service reliability.
2Productivity
If configured grant resources are allocated for periodic reuse, then transmission efficiency is improved, but resource utilization deteriorates when terminal devices do not fully use allocated resources
Solution Approach 1:
The patent employs feedback reporting where terminal devices inform the network device about unused CG resources. This feedback enables the network device to optimize future allocations, maintaining high transmission efficiency while improving overall resource utilization by allocating unused resources to other needs.
Solution Approach 2:
The patent recovers unused CG resources by having terminal devices report them back to the network device. The network device then reassigns these recovered resources to other terminal devices or purposes, thereby improving resource utilization while preserving the transmission efficiency benefits of configured grants.
3Measurement precision
If terminal devices report used or unused resources, then resource allocation accuracy is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback reporting mechanism where terminal devices send information about used or unused CG resources to the network device. This feedback improves resource allocation accuracy by providing precise usage data, while the standardized reporting format minimizes the added system complexity.
Data Source
AI summary
A resource indication method and a communication apparatus are provided. The method includes: A network device sends first information, where the first information indicates to report a used or an unused resource in a configured grant (CG) resource in a CG period; a terminal device obtains the first information, and sends second information based on the first information, where the second information indicates the used or unused resource in the CG resource; and the network device obtains the second information, to obtain the used or unused resource in the CG resource. The network device indicates the terminal device to report the used or unused resource and determines the used or unused resource based on information reported by the terminal device.