Multi-TRP Beam Scheduling for Latency Reduction
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Solution Overview
Problem
In multi-Transmission and Reception Point (TRP) communication, existing technologies face challenges in efficiently scheduling and transmitting data over multiple physical shared channels and uplink control channels, leading to latency issues due to the need for decoding control information before beam switching can occur.
Innovation Solution
The method involves determining different beams for each physical shared channel or uplink control channel scheduled by control information, allowing for simultaneous communication over multiple channels using default or indicated beams, thereby reducing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If control information is decoded before beam switching, then scheduling accuracy is improved, but latency increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple beams and their corresponding control information before actual communication occurs. The system prepares beam switching parameters in advance, allowing the terminal device to switch beams without waiting for complete decoding of control information, thus reducing latency while maintaining scheduling accuracy.
Solution Approach 2:
The patent segments the control information processing into multiple parts: beam identification, beam switching timing, and data transmission scheduling. This segmentation allows independent optimization of each component, enabling beam switching to occur based on pre-determined timing rather than waiting for complete control information decoding.
2Productivity
If multiple physical shared channels are scheduled simultaneously, then communication efficiency is improved, but system complexity increases
Solution Approach 1:
The patent applies universality by designing a unified beam management mechanism that handles multiple physical shared channels through a single beam determination process. The terminal device uses a common set of pre-configured beams and switching rules to manage all scheduled channels, reducing the complexity of handling each channel individually while maintaining high communication efficiency.
Solution Approach 2:
The patent merges the beam determination processes for multiple physical shared channels into a single coordinated process. By combining beam selection and switching operations across multiple channels, the system achieves simultaneous communication without proportionally increasing complexity, as shared resources and unified control logic are leveraged.
Data Source
AI summary
Embodiments of the present disclosure relate to methods, devices and computer readable media for multi-TRP communication. A method comprises determining a first beam for a first physical shared channel which is scheduled by control information; determining a second beam for a second physical shared channel which is scheduled by the control information, the second beam being different from the first beam; and performing communication over the first physical shared channel via the first beam and over the second physical shared channel via the second beam.