Multi-TRP Wireless Data Transmission Scheduling
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing data transmission and reception across multiple transmission and reception points (TRPs), particularly in ensuring reliable and low-latency communication, especially in scenarios requiring ultra-reliable low-latency communication (URLLC) and enhanced mobile broadband (eMBB) services.
Innovation Solution
The method involves a user equipment (UE) receiving downlink control information (DCI) from a base station (BS) to schedule data reception from multiple TRPs, using mode information to assume synchronized data transmission and reception, and obtaining data information based on this assumption, with the BS configuring transmission modes to enable efficient data sharing across TRPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted from multiple TRPs to ensure reliability and low latency, then communication reliability and latency performance are improved, but system complexity and coordination overhead increase
Solution Approach 1:
The patent segments the data transmission process by dividing it into multiple TRP-specific transmissions. Each TRP transmits data independently based on scheduled resources, allowing the system to achieve diversity gain and improved reliability without requiring complex centralized coordination. The UE receives and combines data from multiple TRPs, effectively segmenting the reception task across multiple transmission points.
Solution Approach 2:
The patent implements preliminary action through advance scheduling of TRP resources. The base station pre-configures resource allocations, TCI states, and transmission parameters for multiple TRPs before data transmission begins. This preliminary configuration reduces real-time coordination complexity while ensuring reliable multi-TRP operation, as the UE can prepare reception parameters in advance based on received scheduling information.
2Productivity
If multiple TRPs transmit data simultaneously to enhance communication capacity, then productivity and communication capacity are improved, but interference management and signal quality deteriorate
Solution Approach 1:
The patent applies local quality by assigning different TCI (Transmission Configuration Indicator) states to different TRPs, allowing each TRP to transmit with optimized beamforming and spatial characteristics tailored to the UE's local channel conditions. This enables simultaneous multi-TRP transmission with reduced interference, as each TRP adapts its transmission quality to local requirements rather than using uniform transmission parameters.
Solution Approach 2:
The patent implements periodic action through time-division multiplexing of TRP transmissions. Different TRPs transmit data in periodically alternating time slots or occasions, reducing simultaneous interference while maintaining high overall communication capacity. The UE receives scheduling information that indicates which TRP transmits in which time occasion, allowing structured interference management across multiple TRPs.
3Adaptability or versatility
If the UE processes data from multiple TRPs with different TCI states, then adaptability and reception flexibility are improved, but processing complexity and power consumption increase
Solution Approach 1:
The patent applies partial action by enabling the UE to process only the necessary subset of TRP transmissions based on scheduling information and service requirements. Rather than continuously processing all possible TRP signals, the UE selectively processes data from scheduled TRPs, reducing power consumption while maintaining adaptability. The UE can activate or deactivate processing for specific TRPs based on current communication needs.
Solution Approach 2:
The patent implements parameter changes by dynamically adjusting UE reception parameters (such as TCI states, resource allocations, and processing modes) based on received DCI and higher-layer signaling. This allows the UE to adapt its processing complexity and power consumption levels to match current transmission conditions, switching between different reception configurations as needed without maintaining constant high-level processing readiness.
Data Source
AI summary
The present disclosure provides a method for operating a terminal and a base station in a wireless communication system, and a device supporting same. According to an embodiment applicable to the present disclosure, a terminal may acquire data information from at least one transmission reception point (TRP) among a plurality of TRPs on the basis of a transmission mode configured on the terminal by a base station, in which data generated from the same information is transmitted from the plurality of TRPs.