Fractional Physical Resource Block Allocation for Wireless Data Transmission
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Solution Overview
Problem
The current data transmission methods in communications technologies result in a waste of transmission resources due to the use of a minimum resource block size that is larger than necessary for voice services, leading to inefficient resource allocation.
Innovation Solution
A data transmission method that determines an antenna port based on a fractional physical resource block (F-PRB) resource index and quantity, allowing for more efficient allocation by using DCI formats like DCI 1A and DCI 2C/2D to convey the F-PRB resource index, enabling the user equipment to determine the appropriate antenna port for data reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a minimum resource block size is used for data transmission, then resource allocation is simplified, but transmission resource waste occurs when the transport block is small
Solution Approach 1:
The resource block is divided into multiple sub-resource blocks, allowing the system to allocate only the necessary portion for the transport block. This segmentation enables fine-grained resource allocation, preventing waste when the transport block size is small while maintaining simple allocation mechanisms through standardized sub-block structures.
2Device complexity
If a minimum resource block size is used for data transmission, then resource allocation is simplified, but transmission efficiency decreases
Solution Approach 1:
By segmenting the resource block into sub-resource blocks, the system achieves both simplicity and efficiency. The standardized segmentation pattern keeps allocation complexity low, while the ability to allocate partial blocks improves transmission efficiency by matching resource allocation to actual data size requirements.
Solution Approach 2:
The invention changes the allocation parameter from fixed resource block units to variable sub-resource block units. This parameter change allows the allocation size to be adjusted according to the transport block size, improving transmission efficiency without significantly increasing allocation complexity through established partitioning rules.
3Loss of energy
If fractional physical resource blocks are used, then transmission resource utilization improves, but device complexity increases
Solution Approach 1:
The systematic segmentation of resource blocks into standardized sub-resource blocks improves transmission resource utilization by enabling precise allocation. The complexity is managed through regular partitioning patterns and standardized procedures, preventing exponential growth in system complexity despite the finer granularity of allocation.
Data Source
AI summary
Embodiments of the present invention relate to the field of communications technologies. The method includes: determining, according to a fractional physical resource block (F-PRB) resource index allocated to UE and according to a quantity of F-PRBs included in each physical resource block PRB pair, an antenna port used to send data to the UE; sending downlink control information (DCI) to the UE, where a transmission format of the DCI is DCI 1A, and carries the F-PRB resource index that is allocated to the UE; and sending the data to the UE by using the antenna port.