Multi-TRP Wireless Configuration Signaling for Simultaneous Transmission
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Solution Overview
Problem
Current wireless communication technologies face challenges in enabling simultaneous transmission from multiple Transmitting Receiving Points (TRPs) to a terminal device, particularly in the New Radio (NR) system, where coordinating multiple beams or antenna panels is complex.
Innovation Solution
A wireless communication method involving configuration signaling sent by a network device to a terminal device, which includes multiple sets of configuration information for a first type of channel and/or correspondence between these sets and a second type of channel, allowing for simultaneous transmission by multiple TRPs, beams, or antenna panels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple TRPs simultaneously transmit to a terminal device, then communication reliability and throughput are improved, but system complexity and coordination difficulty increase
Solution Approach 1:
The patent segments the transmission system into multiple independent TRPs, each capable of simultaneous transmission. The terminal device is configured with multiple sets of physical downlink control channel (PDCCH) parameters, allowing it to independently process signals from different TRPs. This segmentation enables improved reliability through diversity while managing complexity by providing independent configuration for each TRP.
Solution Approach 2:
The network device performs preliminary configuration by sending RRC signaling to the terminal device, pre-configuring multiple sets of PDCCH parameters before actual multi-TRP transmission begins. This preliminary action includes configuring search space sets, control resource sets, and other parameters, thereby reducing real-time coordination complexity during simultaneous transmission.
2Productivity
If multiple sets of configuration information are provided for simultaneous TRP transmission, then transmission efficiency is improved, but terminal device processing overhead increases
Solution Approach 1:
The patent merges the configuration of multiple TRPs into a unified RRC signaling message structure. Multiple sets of PDCCH parameters are contained within a single configuration message, allowing the terminal device to receive and process all configurations in one operation rather than multiple separate messages, thereby reducing processing overhead while maintaining high transmission efficiency.
Solution Approach 2:
The configured PDCCH parameters are designed to be universal across multiple TRPs, with common parameters applicable to all TRPs and specific parameters configurable per TRP. This multi-functionality allows the same configuration framework to support simultaneous transmission from any number of TRPs, improving transmission efficiency without proportionally increasing processing overhead.
Data Source
AI summary
Embodiments of the present disclosure provide a wireless communication method and a device. The method includes sending, by a network device, configuration signaling to a terminal device. The configuration signaling includes multiple sets of configuration information for a first type of channel, and/or a correspondence between the multiple sets of configuration information for the first type of channel and at least one set of configuration information for a second type of channel.