UE Capability Signaling for Adaptive Guard Band Resource Blocks
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Solution Overview
Problem
The existing LTE and 5G NR systems have fixed maximum resource block configurations based on predetermined guard bands, leading to suboptimal spectrum utilization, particularly for high-capability user equipment that can support smaller guard bands.
Innovation Solution
User equipment transmits capability information indicating its minimum guard band support, allowing the network device to adaptively configure a larger number of resource blocks, reducing the guard band occupancy and improving spectrum utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed maximum number of resource blocks is configured based on predetermined guard bands, then system compatibility and simplicity are maintained, but spectrum utilization rate deteriorates for high-capability user equipment
Solution Approach 1:
The patent applies dynamics by transitioning from a fixed maximum resource block configuration to a dynamic configuration that adapts to user equipment capabilities. The network device determines the maximum number of resource blocks based on the minimum guard band capability reported by the user equipment, allowing the configuration to change dynamically according to individual device abilities rather than using a one-size-fits-all approach.
Solution Approach 2:
The patent changes the parameter of maximum resource block configuration based on the minimum guard band parameter. By obtaining capability information about the minimum guard band that user equipment can support and using this to determine the maximum number of resource blocks, the system optimizes spectrum utilization by adjusting this critical parameter according to actual device capabilities.
2Productivity
If a larger number of resource blocks are configured, then spectrum utilization rate is improved, but guard band occupancy increases
Solution Approach 1:
The patent optimizes the balance between resource block quantity and guard band occupancy by changing the guard band parameter dynamically. The network device determines the maximum number of resource blocks based on the minimum guard band capability reported by user equipment, allowing the guard band parameter to be optimized for each user rather than using a fixed predetermined value.
Solution Approach 2:
The patent implements feedback by having user equipment report its minimum guard band capability to the network device. This feedback mechanism allows the network to accurately determine how many resource blocks can be configured while maintaining acceptable signal quality, as the configuration is based on actual user capability information rather than assumptions.
3Adaptability or versatility
If fixed guard band values are used for all channel bandwidths, then implementation simplicity is maintained, but adaptability to different user capabilities deteriorates
Solution Approach 1:
The patent applies dynamics by making the guard band configuration adaptive rather than static. The network device dynamically determines the maximum number of resource blocks based on the minimum guard band capability reported by each user equipment, allowing the system to adapt to different user capabilities while maintaining a relatively simple implementation through standardized capability reporting.
Solution Approach 2:
The patent achieves universality by creating a mechanism that works across different user equipment types and channel bandwidths. The capability information reporting and processing mechanism is designed to be universally applicable, allowing the same procedure to adapt to various scenarios without requiring separate handling for each case.
Data Source
AI summary
A method for receiving capability information is performed by a network device and includes: receiving capability information from a user equipment, wherein the capability information is configured to indicate a minimum guard band supported by the user equipment in at least one frequency range; and determining, based on the capability information, configuration information, wherein the configuration information is configured to indicate a maximum number of resource blocks configurable for the user equipment in a set channel bandwidth.