Subframe Dependent PUCCH Resource Allocation
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Solution Overview
Problem
Wireless communication networks face interference challenges due to overlapping transmissions from neighboring base stations and user equipment, which degrade performance and require effective interference management techniques for improved system performance.
Innovation Solution
The method involves determining the allocation of physical uplink control channel (PUCCH) resources based on subframe types, where the location and size of PUCCH resources are dependent on the subframe type, with protected subframes allowing larger regions for more robust transmissions and non-protected subframes having reduced regions to mitigate interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If PUCCH resources are allocated with fixed location and size for all subframes, then resource allocation is simple, but interference protection and transmission reliability are insufficient
Solution Approach 1:
The patent applies dynamics by making the PUCCH resource allocation adaptive rather than fixed. The location and size of PUCCH resources are dynamically adjusted based on subframe type (protected vs. non-protected), allowing the system to optimize resource allocation for each subframe's specific interference conditions while maintaining overall system reliability.
2Reliability
If larger PUCCH regions are allocated for all subframes, then transmission robustness is improved, but resource efficiency and interference mitigation are reduced
Solution Approach 1:
The patent applies local quality by differentiating PUCCH resource allocation based on the specific characteristics of each subframe type. Protected subframes receive larger PUCCH regions for enhanced robustness, while non-protected subframes use reduced regions to improve resource efficiency, thus optimizing both reliability and energy utilization locally for different transmission conditions.
Solution Approach 2:
The patent segments the PUCCH resource allocation into different regions based on subframe type. By dividing the resource allocation strategy into distinct segments (protected subframe resources vs. non-protected subframe resources), the system can independently optimize each segment's characteristics to match its specific transmission requirements.
3Object-affected harmful factors
If PUCCH resources are restricted in non-protected subframes, then interference is reduced, but transmission opportunities are limited
Solution Approach 1:
The patent uses dynamics to enable flexible PUCCH resource allocation that adapts to interference conditions. By dynamically adjusting resource availability based on whether a subframe is protected or non-protected, the system optimizes the balance between interference reduction and transmission opportunities, allowing UEs to transmit when conditions permit while avoiding interference when necessary.
Data Source
AI summary
According to certain aspects, resources allocated to a user equipment (UE) for physical uplink control channel (PUCCH) transmissions may be determined in a subframe-type dependent manner. As a result, PUCCH regions for different subframes may vary based on the subframe types.