Dynamic Subband Configuration for 5G Uplink Resource Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing uplink channels, particularly in 5G communication systems, which require advanced methods to handle the increasing demand for high-speed data transmission and resource allocation.
Innovation Solution
A method for transmitting an uplink channel in a wireless communication system involves configuring multiple subbands on a frequency domain resource within a predetermined time domain resource of a slot. The method includes determining a subband for uplink transmission based on information about the slot and the subbands, and performing uplink transmission on resources within the determined subband.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple subbands are configured on frequency domain resources within a slot, then resource allocation efficiency is improved, but device complexity increases
Solution Approach 1:
The frequency domain resources within a slot are divided into multiple subbands, each capable of independent configuration for uplink transmission. This segmentation allows the system to allocate resources more efficiently by assigning specific subbands to different users or traffic types, thereby improving resource allocation efficiency while managing device complexity through structured division
Solution Approach 2:
The patent implements dynamic subband configuration where the number, position, and properties of subbands can be adjusted based on traffic conditions and system requirements. This dynamic approach enables the system to adapt to varying demands, improving productivity by optimizing resource allocation in real-time while maintaining manageable complexity through flexible rather than rigid configuration
2Productivity
If dynamic TDD is used to vary the number of OFDM symbols according to traffic direction, then spectral efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies dynamic TDD by allowing the number of OFDM symbols allocated to uplink and downlink to vary according to traffic directions. This dynamic adjustment optimizes spectral efficiency by matching resource allocation to actual traffic demands. The system manages complexity through standardized procedures for configuring and signaling these dynamic changes to terminals
Solution Approach 2:
The system changes key parameters such as the number of OFDM symbols and subband configurations based on traffic conditions. By dynamically adjusting these parameters, the system achieves improved spectral efficiency while controlling complexity through parameter-based management rather than fundamental architectural changes
Data Source
AI summary
The present invention relates to a terminal that receives information about slots in a time division duplex (TDD) system, receives information about a plurality of subbands on frequency domain resources, and performs uplink transmission on resources within a subband that is determined to be a subband for uplink transmission on the basis of the information about the plurality of subbands.