Uplink Resource Allocation Granularity Reduction for MTC Terminals
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Solution Overview
Problem
Current machine type communications (MTC) systems face challenges in resource allocation granularity for physical uplink shared channels (PUSCH), limiting coverage performance and spectrum efficiency due to a minimum allocation granularity of one physical resource block.
Innovation Solution
A method and device for configuring and transmitting uplink resource allocation parameters, including narrowband indices, physical resource block indices, or subcarrier indices, to reduce the resource allocation granularity, allowing for smaller allocation units such as single or multiple subcarriers, thereby enhancing power transmission and spectrum efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If resource allocation granularity is reduced below one physical resource block, then spectrum efficiency and coverage performance are improved, but resource allocation complexity and overhead increase
Solution Approach 1:
The patent segments the physical resource block into smaller subcarriers as the basic allocation unit. Instead of allocating resources at the PRB level (12 subcarriers × 1 symbol), the system now allocates at the subcarrier level, enabling finer-grained resource distribution. This segmentation allows the terminal to allocate resources more flexibly and improves spectrum efficiency by avoiding wasted resources while reducing allocation granularity below the PRB level.
2Reliability
If resource allocation granularity is reduced to subcarrier level, then coverage performance and power transmission are improved, but signaling overhead and processing complexity increase
Solution Approach 1:
The patent introduces a new dimension for resource allocation by defining resource allocation in terms of subcarrier indices and symbol indices separately. The resource allocation is specified using a starting subcarrier index and a number of subcarriers, rather than traditional PRB-based indexing. This dimensional change allows for more flexible resource representation and reduces the overhead required to describe fine-grained allocations.
3Productivity
If minimum resource allocation is reduced below one physical resource block, then spectrum utilization is improved, but resource management complexity increases
Solution Approach 1:
The patent implements dynamic resource allocation at the subcarrier level, where the number of subcarriers allocated can be flexibly adjusted based on channel conditions and traffic requirements. The system dynamically determines the starting position and length of the resource allocation in the frequency domain, allowing for adaptive spectrum utilization. This dynamic approach enables more efficient use of available spectrum while providing the network with flexible resource management capabilities.
Data Source
AI summary
Provided are a resource allocation method and device, and a storage medium. The method includes: configuring resources for transmission of a physical uplink shared channel of a terminal by means of an uplink resource allocation parameter; and transmitting the uplink resource allocation parameter to the terminal. By means of the method, the device and the storage medium of the present disclosure, a base station configures, through the uplink resource allocation parameter, resources for the transmission of the physical uplink shared channel of the terminal and transmits the uplink resource allocation parameter to the terminal, thus solving the problem in the related art the minimum resource allocation granularity in resource allocation for the PUSCH can only be one physical resource block, and reducing the resource allocation granularity.