5G Resource Block Switching for Uplink Coverage
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Solution Overview
Problem
The 5G New Radio (NR) system faces challenges in uplink coverage due to higher path loss and power reduction requirements for resource blocks at the edge of the channel bandwidth, impacting communication network efficiency and energy consumption.
Innovation Solution
A method for terminals to request and base stations to provide feedback on resource block location switching, allowing terminals to switch from edge to middle channel locations for data transmission, reducing power reduction and improving uplink coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If resource blocks are allocated at the edge of channel bandwidth, then frequency spectrum utilization is improved, but power reduction requirements increase and uplink coverage deteriorates
Solution Approach 1:
The patent implements dynamic resource block location switching, allowing the system to change RB allocation positions based on real-time channel conditions and terminal capabilities. The terminal can switch between edge-RB and middle-RB configurations, enabling adaptive optimization of both spectrum utilization and coverage performance rather than being fixed to one allocation mode.
Solution Approach 2:
The patent changes the physical location parameter of resource blocks within the frequency spectrum. By switching the RB position between edge and middle of the channel bandwidth, the system modifies the frequency domain characteristics to balance spectrum efficiency and power amplifier performance, directly addressing the contradiction between spectrum utilization and coverage capability.
2Productivity
If resource blocks are allocated at the edge of channel bandwidth, then data transmission capacity is improved, but power amplifier efficiency deteriorates due to higher power reduction requirements
Solution Approach 1:
The system dynamically adjusts RB allocation based on terminal movement state and channel conditions. When the terminal is stationary or in favorable conditions, edge-RB allocation maximizes data capacity. When the terminal moves or channel conditions deteriorate, the system switches to middle-RB allocation to maintain power amplifier efficiency, thus dynamically balancing capacity and energy consumption.
Solution Approach 2:
The patent implements a feedback mechanism where the base station receives terminal capability information and movement state reports, then sends RB location switching commands. This closed-loop feedback system allows the network to continuously optimize the trade-off between data transmission capacity and power amplifier efficiency based on real-time conditions.
3Device complexity
If resource block location is fixed, then system complexity is reduced, but adaptability to different channel conditions and terminal states deteriorates
Solution Approach 1:
The terminal autonomously determines its movement state and channel conditions, then self-reported this information to the base station. The base station uses this information to make RB location switching decisions, distributing the intelligence and reducing centralized control complexity while maintaining high adaptability to varying conditions.
Data Source
AI summary
Examples of the present disclosure provide a data transmission method performed by a terminal. The method includes: sending a resource block (RB) location switching request to a base station; receiving, from the base station, feedback information for the RB location switching request; and sending data on an RB-before-switching or on an RB-after-switching according to the feedback information.