CG PUSCH Usage Indication for XR Resource Recycling
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Solution Overview
Problem
The specific indication scheme for Configured Grant (CG) Physical Uplink Shared Channel (PUSCH) occasions in extended reality (XR) service data transmission has not been determined, leading to inefficiencies in resource utilization and capacity performance.
Innovation Solution
A method and apparatus for a terminal to send first indication information to a network-side device, indicating the positions or indexes of used and unused CG PUSCH occasions, or time periods corresponding to these occasions, to support resource recycling, and for the network-side device to reallocate time-frequency resources based on this information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If CG PUSCH occasions are allocated for XR service data transmission, then service data transmission capability is improved, but resource utilization efficiency deteriorates due to unused occasions
Solution Approach 1:
The terminal device feeds back indication information to the network device to report the usage status of CG PUSCH occasions. This feedback mechanism enables the network device to identify unused occasions and reallocate their resources, thereby improving resource utilization efficiency while maintaining the transmission capability provided by CG resources.
Solution Approach 2:
The patent recovers unused CG PUSCH occasions by identifying them through indication information and reallocating their time-frequency resources to other purposes. This allows the system to discard the original allocation for unused occasions and recover the resources for alternative uses, reducing waste while preserving the overall transmission capability.
2Productivity
If CG resources are configured for XR services, then transmission capacity is improved, but resource allocation flexibility deteriorates due to fixed pre-configuration
Solution Approach 1:
The patent introduces dynamic resource reallocation based on actual usage. While CG resources are pre-configured for guaranteed transmission capacity, the network device dynamically adjusts the allocation by reallocating unused CG PUSCH occasions to other services or purposes, thereby adding flexibility to the originally fixed configuration without compromising the guaranteed capacity for XR services.
Solution Approach 2:
The system recovers unused pre-configured CG resources and reallocates them dynamically. This allows the fixed CG configuration to serve its primary purpose while enabling flexible reallocation of any unused portions, combining the benefits of both fixed and dynamic allocation strategies.
3Measurement precision
If indication information is sent for each CG PUSCH occasion, then resource recycling accuracy is improved, but signaling overhead increases
Solution Approach 1:
Instead of requiring indication information for every single CG PUSCH occasion, the patent applies partial action by only requiring indication for occasions that need to be reported. The terminal sends indication information selectively based on actual usage patterns, achieving sufficient resource recycling accuracy without the excessive signaling overhead of reporting all occasions.
Solution Approach 2:
The indication information mechanism serves multiple functions: it identifies unused occasions for recycling, provides usage statistics, and enables dynamic resource adjustment. This multi-functionality reduces the need for separate signaling mechanisms, thereby lowering overall signaling overhead while maintaining accurate resource tracking.
Data Source
AI summary
An indication method and device, and a readable storage medium are provided. The method includes: sending, by a terminal, first indication information to a network-side device during a duration of service data or when a CG resource is present, where the CG resource includes at least one CG PUSCH occasion, the first indication information is used to indicate positions or indexes of used CG PUSCH occasions and positions or indexes of unused CG PUSCH occasions in the CG resource, the first indication information is used to indicate a time period corresponding to used CG PUSCH occasions and a time period corresponding to unused CG PUSCH occasions in the CG resource, or the first indication information is used to indicate used CG PUSCH occasions or unused CG PUSCH occasions in the CG resource in a first time period; and the CG PUSCH occasion is determined to support resource recycling.