Uplink Channel Configuration for High-Frequency NR Coverage
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Solution Overview
Problem
In New Radio (NR) systems operating at higher frequency bands, such as above 52.6 GHz, channel fading and multipath interference are significant, leading to lower coverage performance and data transmission efficiency for uplink transmission channels, particularly for the physical uplink control channel (PUCCH).
Innovation Solution
The proposed solution involves a transmission channel configuration method and apparatus that send resource configuration information to user equipment, including time-domain, frequency-domain, and spatial direction information, to enhance the sending mode of the transmission channel. This configuration allows for improved negotiation of the sending mode between the base station and user equipment, specifically for high-frequency band scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the NR system operates at higher frequency bands to increase data transmission capacity, then the data transmission efficiency is improved, but the coverage performance of uplink transmission channels deteriorates due to greater channel fading and multipath interference
Solution Approach 1:
The patent segments the uplink transmission channel into multiple candidate channels with different sending modes (e.g., different beamforming configurations, power allocation strategies, or modulation schemes). The terminal device selects from these segmented options based on channel conditions, allowing the system to maintain high data transmission efficiency while ensuring reliable coverage through appropriate mode selection.
Solution Approach 2:
The patent introduces dynamic selection of transmission channel sending modes based on real-time channel conditions. The terminal device determines the optimal sending mode from multiple candidates by evaluating channel quality indicators, enabling the system to adaptively balance between data transmission efficiency and coverage performance according to varying propagation conditions at different frequency bands.
2Device complexity
If conventional uplink transmission channel configurations are used at higher frequencies, then device complexity is reduced, but coverage performance and data transmission efficiency both deteriorate due to increased fading and interference
Solution Approach 1:
The patent pre-configures multiple candidate transmission channels with different sending modes before actual data transmission. The base station provides configuration information including multiple candidate channels, and the terminal device selects the appropriate one based on channel conditions. This preliminary preparation allows the system to handle high-frequency challenges without requiring complex real-time configuration changes during transmission.
Solution Approach 2:
The patent changes key transmission parameters such as beamforming vectors, power allocation, and modulation schemes across different candidate channels. By providing multiple candidate channels with varied parameter configurations, the system enables the terminal to select optimal parameters adapted to high-frequency propagation characteristics, improving coverage and efficiency without significantly increasing device complexity.
3Reliability
If multiple candidate transmission channels are configured with different sending modes, then coverage performance and data transmission efficiency are improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent designs a universal configuration framework where a single set of configuration information from the base station serves multiple functions: it defines multiple candidate channels, specifies their respective sending modes, and provides selection criteria. This multi-functional configuration approach allows the system to support diverse transmission modes and improve coverage performance while minimizing the increase in device complexity through a unified configuration structure.
Data Source
AI summary
Provided are a transmission channel configuration method and apparatus, a transmission channel sending method and apparatus, a device and a storage medium. The transmission channel configuration method includes sending resource configuration information to a user equipment and receiving the transmission channel according to the resource configuration information. The resource configuration information includes time-domain resource information, frequency-domain resource information and space direction information, and the resource configuration information is used for configuring the sending mode of a transmission channel of the user equipment.