Configured Grant Resource Allocation for Variable Data Rates
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Solution Overview
Problem
Existing communication systems are unable to support variable-rate services and multi-flow services due to fixed data packet sizes, which restrict system capacity and fail to meet the dynamic transmission requirements of services like extended reality (XR) and cloud gaming.
Innovation Solution
Configuring multiple transmission resources for terminal devices using configured grant (CG) or dynamic grant (DG) resources, allowing for flexible data transmission based on changing data packet sizes, and reporting auxiliary information to manage resource allocation effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If fixed data packet size is used in existing systems, then system simplicity is maintained, but variable-rate services and multi-flow services cannot be supported
Solution Approach 1:
The patent implements dynamic resource configuration where multiple transmission resources are allocated to a single periodic resource, and the terminal device dynamically selects appropriate resources based on current data packet size requirements. This enables the system to adapt to variable-rate services while maintaining manageable complexity through structured resource pools and selection mechanisms.
Solution Approach 2:
The patent changes the parameter of data packet size from fixed to variable, allowing different packet sizes to be transmitted using the same periodic resource configuration. The network device configures multiple transmission resources with different parameters (time, frequency, spatial), and the terminal selects resources matching the current data requirements, enabling service adaptability without proportional increase in configuration complexity.
2Reliability
If multiple transmission resources are configured for variable-rate services, then service requirements are met, but system complexity increases
Solution Approach 1:
The patent segments the resource configuration into two layers: the network device manages the overall resource pool configuration (higher layer), while the terminal device handles specific resource selection based on current needs (lower layer). This segmentation distributes complexity appropriately, ensuring transmission reliability through multiple available resources while keeping resource management complexity manageable through clear division of responsibilities.
Solution Approach 2:
The patent implements feedback mechanisms where the terminal device reports auxiliary information (such as buffer status, channel conditions, or data packet size) to the network device. The network device uses this feedback to adjust resource configurations and provide appropriate transmissions grants, ensuring reliable service delivery while managing complexity through information-based adaptation rather than rigid pre-configuration.
3Adaptability or versatility
If dynamic resource allocation is implemented, then variable-rate services are supported, but signaling overhead increases
Solution Approach 1:
The patent applies preliminary action by having the network device pre-configure multiple transmission resources and their parameters before actual data transmission occurs. The terminal device receives and stores this configuration information in advance, then autonomously selects appropriate resources based on current data packet sizes without requiring real-time signaling for each transmission decision. This reduces signaling overhead while maintaining data rate flexibility.
Solution Approach 2:
The patent enables self-service by allowing the terminal device to autonomously select transmission resources from the pre-configured pool based on its own data transmission needs. The terminal evaluates current requirements (data packet size, service type) and independently chooses appropriate resources without continuous network intervention, thereby supporting variable data rates while minimizing signaling overhead.
Data Source
AI summary
A terminal device, a network device and a communication method are provided. The terminal device includes at least one processor. The at least one processor is configured to: receive first information, where the first information is used to configure a first resource, the first resource is a configured grant CG resource, multiple CG PUSCHs are configured for the first resource in one period; and perform, by the terminal device, data transmission by using at least one of the multiple CG PUSCHs.