TRP Mode Switching and Beam Mapping for Blockage-Resilient Uplink
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Solution Overview
Problem
In high-frequency mobile communication, the blocking effect of obstacles such as human bodies or vehicles becomes severe, necessitating a shift from single-TRP-based to multi-TRP-based communication to mitigate interference, but existing technologies are limited to physical downlink shared channels (PDSCH) only.
Innovation Solution
A data communication method and apparatus that enables flexible switching between single-TRP-based and multi-TRP-based communication by using control signaling to indicate TRP operation mode and beam mapping schemes, allowing communication devices to adapt their transmission and reception modes accordingly, including uplink channels like PUSCH and PUCCH.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multi-TRP-based communication is adopted to mitigate blocking effect, then communication reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements dynamic switching between single-TRP and multi-TRP communication modes based on blocking detection. The system monitors channel conditions and adaptively adjusts the number of TRPs used for communication, transitioning from a static to a dynamic configuration that optimizes reliability while managing complexity.
Solution Approach 2:
The patent changes the operational parameters of the communication system by introducing configurable parameters such as blocking effect thresholds, TRP selection criteria, and beam mapping schemes. These parameter changes enable flexible adjustment of communication mode to balance reliability improvement against system complexity.
2Reliability
If beam mapping schemes are implemented for multi-TRP communication, then data communication quality is improved, but control signaling complexity increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring beam mapping schemes and TRP configurations before actual data transmission. The base station prepares and indicates the beam mapping relationships in advance through control signaling, allowing the UE to efficiently execute the predetermined mapping without real-time computation, thus reducing control signaling complexity while maintaining communication quality.
Data Source
AI summary
A data communication method includes: acquiring a control signaling sent by a base station; wherein the control signaling carries indication information of at least one of a transmission and reception point TRP operation mode or a beam mapping scheme, the TRP operation mode is a single-TRP-based communication or a multi-TRP-based communication, and the beam mapping scheme comprises at least one of information of a time unit or information of a mapping pattern between multiple uplink cooperative transmitting beams corresponding to multiple TRPs and time units; and sending data to the base station in the TRP operation mode, the beam mapping scheme, or the TRP operation mode and the beam mapping scheme.