UE Capability Signaling for Tone Reservation Uplink Coverage
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Solution Overview
Problem
The implementation of tone reservation (TR) technology for improving 5G uplink coverage is complex and challenging for user equipment (UE), leading to difficulties in enhancing uplink coverage due to high complexity and increased power consumption.
Innovation Solution
User equipment (UE) and network devices communicate capability information to configure TR technology-based uplink transmission, reducing complexity by reporting parameters such as CCs, APs, SCS, and RBs, and receiving scheduling parameters to perform TR technology-based uplink transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If TR technology is implemented to improve uplink coverage, then uplink coverage performance is improved, but device complexity and power consumption increase
Solution Approach 1:
The network device pre-configures scheduling parameters for TR technology-based uplink transmission before actual transmission occurs. This preliminary configuration includes setting up the TR pattern, resource allocation, and other necessary parameters in advance, so that the UE can directly execute the pre-configured parameters during uplink transmission without performing complex real-time calculations, thereby reducing device complexity while maintaining improved uplink coverage performance
Solution Approach 2:
The network device acts as an intermediary that manages and configures TR technology parameters on behalf of the UE. By having the network device handle the complex TR configuration and scheduling, the computational burden and implementation complexity are shifted from the UE to the network device, allowing the UE to benefit from improved uplink coverage without bearing the full complexity of TR technology implementation
2Reliability
If TR technology is implemented to reduce peak-to-average ratio, then uplink coverage is improved, but power consumption increases
Solution Approach 1:
The network device pre-configures scheduling parameters for TR technology-based uplink transmission before actual transmission occurs. This preliminary configuration includes setting up the TR pattern, resource allocation, and other necessary parameters in advance, so that the UE can directly execute the pre-configured parameters during uplink transmission without performing complex real-time calculations, thereby reducing device complexity while maintaining improved uplink coverage performance
Solution Approach 2:
The UE utilizes the pre-configured scheduling parameters from the network device to automatically perform TR technology-based uplink transmission. The UE applies the TR pattern and resource allocation parameters that were provided in advance, enabling the UE to reduce its own peak-to-average ratio and improve uplink coverage without requiring complex real-time processing or additional power consumption for parameter calculation and optimization
Data Source
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AI summary
Embodiments of this application disclose a communication method and a related device. The communication method includes: A network device sends capability query signaling to UE; the UE receives the capability query signaling from the network device; the UE sends first capability signaling to the network device, where the first capability signaling indicates first capability information indicating that the UE supports a tone reservation TR technology; and the network device receives the first capability signaling from the UE. Embodiments of this application help the UE perform TR technology-based uplink transmission, thereby reducing a peak-to-average ratio of the uplink transmission of the UE, and improving uplink coverage of the UE.