Multi-TRP Control Channel Mapping for Beam-Aware PUCCH Selection

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Solution Overview

Problem

Existing communication systems face challenges in efficiently managing beam management and resource allocation in multiple transmission reception points (TRPs) within wireless networks, particularly in New Radio (NR) systems, leading to suboptimal performance and resource inefficiencies.

Innovation Solution

The implementation of enhanced physical uplink control channel resource determination and selection mechanisms, including dynamic modulation and coding schemes, beam management, and multi-TRP communication protocols, to optimize resource allocation and improve communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple transmission reception points (TRPs) are deployed to improve coverage and capacity, then communication reliability and network capacity are improved, but system complexity and resource management difficulty increase

Engineering Contradiction:

Improvecommunication reliabilityVSAvoidsystem complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the control channel resources by associating different physical downlink control channels (PDCCHs) with different TRPs. Each TRP is assigned specific control channel resources, allowing independent management and reducing overall system complexity while maintaining multiple TRP benefits for improved reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary mechanism through control resource set (CORESET) configurations and search space associations that mediate between multiple TRPs and the UE. This intermediary layer manages the complexity of multi-TRP coordination by providing structured resource allocation and beam management protocols

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If dynamic beam management is implemented to optimize signal quality, then communication quality and data rate are improved, but processing overhead and latency increase

Engineering Contradiction:

Improvesignal qualityVSAvoidprocessing latency

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-configuring beam pairs, CORESETs, and search spaces during connection setup and reconfiguration phases. These preliminary configurations establish beam management frameworks in advance, reducing the need for real-time beam switching and minimizing processing latency during actual data transmission

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements dynamic beam management through configurable parameters that allow adaptive adjustment of beam pairs and CORESET associations based on channel conditions. The system dynamically selects appropriate beam pairs for different TRPs while maintaining pre-established configurations, optimizing signal quality without excessive processing overhead

Inventive Principle:

Principle #15Dynamics

3Area of stationary object

If control channels are transmitted from multiple TRPs simultaneously, then coverage area and signal robustness are improved, but interference management and resource allocation complexity increase

Engineering Contradiction:

Improvecoverage areaVSAvoidresource allocation complexity

Core Design Contradiction:

Area of stationary objectVSDevice complexity

Solution Approach 1:

The patent segments control channel resources by assigning different PDCCHs to different TRPs with distinct time-frequency resources. This segmentation allows simultaneous transmission from multiple TRPs across different coverage areas while reducing interference through resource isolation, and simplifies allocation by treating each TRP's resources independently

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent utilizes multiple dimensions (time, frequency, and spatial domains) to accommodate simultaneous control channel transmissions from multiple TRPs. By allocating resources across different dimensions rather than competing in a single domain, the system expands coverage area while managing interference and allocation complexity through dimensional separation

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

4Ease of manufacture

If existing single-TRP control channel mechanisms are used in multi-TRP environments, then implementation simplicity is maintained, but resource utilization efficiency and performance degrade

Engineering Contradiction:

Improveimplementation simplicityVSAvoidresource utilization efficiency

Core Design Contradiction:

Ease of manufactureVSProductivity

Solution Approach 1:

The patent creates a universal control channel framework that extends existing single-TRP mechanisms to multi-TRP environments through configurable parameters. The same PDCCH structures and procedures are used, but with extended functionality to support multiple TRPs via CORESET associations and beam pair configurations, maintaining implementation simplicity while improving resource utilization efficiency

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12563580B2Control channel with multiple transmission reception points

Publication Date: 2026.02.24 OFINNO LLC

AI summary

A wireless device receives downlink control information (DCI) via a transmission reception point of a multiple transmission reception points and a control resource set (coreset) of a plurality of coresets. The wireless device transmits, in response to receiving the DCI, uplink control information via a physical uplink control channel (PUCCH) resource associated with an index of the PUCCH resource. The index is based on a parameter comprising a transmission configuration indication (TCI) state value.