Multi-TRP Beam Indication for Wireless Transmission Accuracy

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Solution Overview

Problem

Current beam indication solutions are inadequate for multi-TRP scenarios, leading to errors in transmitting channels or reference signals.

Innovation Solution

A method and apparatus for providing beam indication information that includes multiple pieces of beam information corresponding to different TRP identification information, allowing terminal devices to transmit channels or reference signals accurately in multi-TRP scenarios.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If beam indication solution for single-TRP scenario is used for multi-TRP scenario, then device complexity is reduced, but transmission reliability deteriorates due to errors in channel or reference signal transmission

Engineering Contradiction:

Improvebeam indication solution complexityVSAvoidtransmission reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The beam indication information is segmented into multiple pieces, with each piece corresponding to a different TRP identification. This segmentation allows the terminal device to receive and process beam information for multiple TRPs independently, ensuring accurate transmission for each TRP while maintaining manageable system complexity

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a new dimension by adding TRP identification information to the beam indication. This transforms the single-dimension beam indication (for one TRP) into a multi-dimensional indication system that can handle multiple TRPs simultaneously, resolving the contradiction between simplicity and reliability

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Reliability

If multiple pieces of beam information are indicated for different TRPs, then transmission reliability is improved, but information processing complexity increases

Engineering Contradiction:

Improvetransmission reliabilityVSAvoidinformation processing complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The network side device prepares and indicates multiple pieces of beam information in advance, each associated with specific TRP identification. This preliminary action allows the terminal device to have ready-to-use beam information for multiple TRPs, reducing real-time processing complexity while ensuring reliable transmission

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

TRP identification information serves as an intermediary that links beam information to specific TRPs. This intermediary structure helps the terminal device organize and process multiple beam information pieces systematically, reducing processing complexity while maintaining high reliability

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS12335184B2Beam indication method and apparatus, device, and medium

Publication Date: 2025.06.17 VIVO MOBILE COMM CO LTD

AI summary

A beam indication method and apparatus, a device, and a medium. The method includes: receiving beam indication information transmitted by a network-side device, where the beam indication information is used to indicate a plurality of pieces of beam information of a channel or a reference signal, and the plurality of pieces of beam information correspond to different transmission and reception point TRP identification information; and transmitting the channel or the reference signal according to the beam indication information.