Non-Contiguous PUSCH Allocation via Asymmetric PUCCH Blanking
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Solution Overview
Problem
The existing LTE Rel-8 specifications face challenges in maintaining high peak data rates due to symmetrical PUCCH blanking, which results in PUSCH fragmentation and reduced achievable peak data rates, especially when operators have stringent emission requirements on one side of the band.
Innovation Solution
The method involves defining parameters to allow single user equipment to transmit uplink data on physical uplink shared channels via two or more clusters, including adjacent resource blocks, where at least one cluster includes a blanked physical uplink control channel resource block and another includes a physical shared channel resource block, enabling non-contiguous resource allocations without requiring new DCI formats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If symmetrical PUCCH blanking is applied to meet emission requirements, then emission compliance is improved, but PUSCH fragmentation occurs and peak data rates are reduced
Solution Approach 1:
The patent applies asymmetry by allowing non-symmetrical PUCCH blanking configurations where the number of blanked resource blocks can differ between the first and second sets of resource blocks. This enables flexible resource allocation that meets emission requirements on one side of the band without forcing symmetrical blanking that would fragment PUSCH resources and reduce peak data rates. The asymmetric configuration allows the system to blank PUCCH resources only where emission constraints exist while preserving contiguous PUSCH resources for data transmission.
Solution Approach 2:
The patent implements dynamics by introducing configurable parameters that allow the network to dynamically adjust the number and positioning of blanked PUCCH resource blocks based on emission requirements and traffic conditions. The system can adaptively switch between different blanking configurations (e.g., blanking only first set, only second set, or both sets with different numbers of blocks) to optimize both emission compliance and data rate performance under varying operational conditions.
2Device complexity
If contiguous resource allocation is enforced for PUSCH, then resource allocation simplicity is maintained, but resource utilization efficiency decreases due to fragmentation
Solution Approach 1:
The patent applies segmentation by dividing the uplink resource blocks into multiple independent sets (first set and second set) that can be independently configured and blanked. This segmentation allows the system to create non-contiguous resource allocations across different sets while maintaining contiguous allocations within each set, thereby improving overall resource utilization without significantly increasing allocation complexity. The segmented approach enables flexible combination of resource blocks from different sets to form efficient data transmission resources.
3Productivity
If non-contiguous resource allocation is allowed for PUSCH, then resource utilization efficiency improves, but device complexity and specification changes increase
Solution Approach 1:
The patent implements dynamics by introducing configurable parameters that allow the network to dynamically adjust the number and positioning of blanked PUCCH resource blocks based on emission requirements and traffic conditions. The system can adaptively switch between different blanking configurations (e.g., blanking only first set, only second set, or both sets with different numbers of blocks) to optimize both emission compliance and data rate performance under varying operational conditions.
Data Source
AI summary
The exemplary embodiments of the invention provide at least a method and apparatus for defining a set of parameters to establish a possibility for a single user equipment to transmit uplink data on a physical uplink shared channel via two or more clusters including adjacent resource blocks, where at least one of the clusters includes at least one blanked physical uplink control channel resource block and where at least one of the clusters includes at least one physical shared channel resource block, and transmitting the parameters to at least the single user equipment. Further, the exemplary embodiments of the invention provide at least a method and apparatus for receiving a set of parameters defining a physical uplink control channel and allocating physical/virtual resource blocks based at least on received physical uplink control channel configuration parameters, a received resource allocation and predefined physical resource block mapping rules.