Dynamic Guard Band Allocation for 5G Terminals
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Solution Overview
Problem
In 5G wireless communication systems, existing methods for allocating guard bands are inefficient, leading to unnecessary resource occupation and reduced transmission efficiency due to symmetric or inappropriate guard band allocation across terminals with different power offsets and bandwidths.
Innovation Solution
A method and apparatus for dynamically determining and allocating a minimum guard band for each terminal based on received state information, using a processor to calculate optimal resource blocks and guard bands that satisfy a target error vector magnitude (EVM), considering power offsets and bandwidths, thereby minimizing frequency occupancy and maximizing resource efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If symmetric guard band allocation is used across all terminals, then allocation simplicity is maintained, but transmission efficiency decreases due to unnecessary resource occupation
Solution Approach 1:
The patent applies asymmetry by allocating different guard band configurations to different terminals based on their specific characteristics (power offset, bandwidth). Instead of using a uniform symmetric guard band allocation for all terminals, the system determines asymmetric guard band values tailored to each terminal's requirements, thereby reducing unnecessary resource occupation while maintaining allocation manageability through automated determination procedures
Solution Approach 2:
The patent implements dynamics by making guard band allocation adaptive rather than static. The guard band configuration dynamically adjusts according to each terminal's power offset and bandwidth characteristics. The base station determines appropriate guard band values based on received terminal information and allocates resources accordingly, allowing the system to optimize transmission efficiency for varying terminal requirements
2Device complexity
If guard band is allocated without considering terminal-specific parameters, then allocation process is simplified, but resource efficiency deteriorates due to excessive frequency occupancy
Solution Approach 1:
The patent applies local quality by tailoring guard band allocation to each terminal's specific characteristics rather than applying a uniform configuration. The system considers local conditions such as individual terminal power offsets and bandwidth requirements to determine appropriate guard band values. This localized approach ensures that each terminal receives the minimum necessary guard band protection while minimizing overall frequency resource consumption
Solution Approach 2:
The patent implements parameter changes by adjusting guard band configuration based on terminal-specific parameters (power offset, bandwidth). The system varies the guard band parameter according to the terminal's characteristics, determining optimal values that satisfy transmission requirements while reducing unnecessary resource occupation. This parameter-based differentiation enables efficient resource utilization
3Productivity
If dynamic guard band allocation based on terminal state information is implemented, then transmission efficiency increases, but system complexity increases due to additional processing requirements
Solution Approach 1:
The patent applies preliminary action by having terminals provide their state information (power offset, bandwidth characteristics) to the base station in advance. This预先 information allows the base station to determine appropriate guard band configurations before resource allocation, streamlining the processing required for dynamic allocation. The preliminary provision of terminal characteristics reduces the computational burden during the actual allocation phase
Data Source
AI summary
An operating method and an apparatus are provided in which state information is received from at least one of a higher layer and a plurality of terminals. A respective allocation resource is determined for each of the plurality of terminals, based on the state information. A respective guard band is determined to be allocated for each of the plurality of terminals, based on the respective allocation resource. Respective resource blocks (RBs) are determined for each of the plurality of terminals, based on the respective guard band. Information about the determined respective RBs is transmitted to respective terminals of the plurality of terminals.