Antenna Panel Coherent Combining Across FR2 and FR3

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Solution Overview

Problem

Existing wireless communication systems face challenges in bridging the link budget between different frequency ranges, such as FR2 and FR3, due to the large antenna panel sizes required for coherent processing gains, which cannot be accommodated on the edges of form factor UEs.

Innovation Solution

Implementing coherently combined signals across co-located or adjacently located antenna panels for enhanced beamforming gains, using L-shaped or T-shaped structures, to overcome the limitations of antenna panel placement and frequency range differences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If large antenna panel sizes are used for coherent processing gains, then beamforming gains are improved, but the antenna panels cannot be accommodated on the edges of form factor UEs

Engineering Contradiction:

Improvebeamforming gainsVSAvoidantenna panel size

Core Design Contradiction:

ReliabilityVSArea of stationary object

Solution Approach 1:

The patent divides the antenna system into multiple co-located or adjacently located antenna panels, each handling specific frequency ranges. This segmentation allows the UE to achieve coherent processing gains across frequency ranges without requiring a single large antenna panel, thus resolving the contradiction between beamforming gains and form factor constraints.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent combines signals from multiple antenna panels coherently across different frequency ranges (FR2 and FR3) to achieve beamforming gains. By merging the functionality of multiple smaller panels into a unified coherent combining system, the patent achieves the reliability benefits of large panels while maintaining compatibility with form factor UE size constraints.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If co-located or adjacently located antenna panels are used for coherent combining, then communication throughput is improved, but the complexity of signal processing across frequency ranges increases

Engineering Contradiction:

Improvecommunication throughputVSAvoidsignal processing complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent introduces capability indication signaling as an intermediary mechanism between the UE and network entity. This signaling framework enables the UE to inform the network of its coherent combining capabilities across frequency ranges, allowing the network to configure appropriate parameters and procedures. This intermediary approach facilitates improved throughput while managing processing complexity through standardized communication protocols.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250373316A1Communicating using coherent combining over antenna panels across frequency ranges

Publication Date: 2025.12.04 TAIWAN SEMICONDUCTOR MANUFACTURING CO LTD

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a capability indication of a capability of coherent signal combining across at least two frequency ranges associated with at least two antenna panels of the UE. The UE may communicate using a signal that is coherently combined across the at least two frequency ranges at either a radio frequency (RF), an intermediate frequency (IF), or a baseband. Numerous other aspects are described.