BWP Resource Allocation Using Dynamic RBG Alignment
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Solution Overview
Problem
In a new radio (NR) system, when bandwidth parts (BWP) configured for narrowband and wideband terminals overlap, resource allocation can result in resource fragments and waste due to the inability to schedule resources across different BWPs.
Innovation Solution
A method where a network device determines a first value to control the resource block group (RBG) size or resource indication value (RIV) set for a BWP, aligning RBGs or VRBs to reduce resource fragments by adjusting the RBG size or RIV set, thereby improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional resource allocation methods are used for overlapping BWPs, then resource block group alignment is poor, but resource fragmentation increases and resource utilization decreases
Solution Approach 1:
The patent changes the RBG size parameter dynamically based on BWP configuration. By adjusting the RBG size to be equal to or an integer multiple of the narrowband BWP size, the system achieves alignment between wideband and narrowband RBGs, reducing resource fragmentation and improving resource utilization while maintaining BWP configuration flexibility
2Device complexity
If RBG size is fixed for different BWP sizes, then configuration is simple, but resource alignment between narrowband and wideband BWPs is poor
Solution Approach 1:
The patent implements dynamic RBG size configuration where the RBG size adapts to different BWP sizes. The network device configures the RBG size based on the narrowband BWP size, allowing the system to automatically adjust to different terminal types (narrowband or wideband) without complex manual configuration, achieving both simplicity and adaptability
3Ease of operation
If separate resource allocation is used for narrowband and wideband terminals, then allocation is simple, but resources cannot be shared and waste occurs
Solution Approach 1:
The patent creates a universal resource allocation mechanism that works for both narrowband and wideband terminals. By aligning RBG sizes and using unified resource indication value (RIV) sets, the same resource allocation framework can serve different terminal types, enabling resource sharing between narrowband and wideband terminals while maintaining allocation simplicity
Data Source
AI summary
In a resource allocation method, after determining a BWP allocated to a terminal device, where the BWP includes a first BWP, and determining a first value, a network device sends first indication information to the terminal device, where the first indication information is used to indicate the first value. The terminal device determines the BWP allocated by the network device to the terminal device, where the BWP includes the first BWP, and receives the first indication information from the network device. Then, when the first value is used to indicate a RBG size corresponding to the first BWP, the RBG size corresponding to the first BWP is determined based on the first value. Alternatively, when the first value is used to determine a RIV set corresponding to the first BWP, the RIV set corresponding to the first BWP is determined based on the first value.