Pilot-Based Resource Allocation for Temporal Broadening in FR2

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Solution Overview

Problem

Current 5G (NR) communication technologies lack flexibility in operating wide frequency bands, particularly in millimeter wave and terahertz wave bands, leading to issues such as temporal broadening and path loss, which affect communication performance.

Innovation Solution

A method and apparatus for resource allocation in communication systems using millimeter wave and terahertz wave bands, involving the transmission of pilot signals with predetermined periodicity, measurement of temporal broadening, and dynamic allocation of communication resources based on predetermined mapping rules, including determination of appropriate Cyclic Prefix (CP) symbols in an OFDM scheme.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If wide frequency band in FR2 band is utilized, then communication capacity increases, but temporal broadening and path loss worsen

Engineering Contradiction:

Improvecommunication capacityVSAvoidcommunication performance

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent implements dynamic resource allocation where the base station adjusts frequency resource allocation based on measured temporal broadening characteristics. The resource allocation is not static but adapts to changing channel conditions, allowing the system to maintain reliable communication while utilizing wide frequency bands by dynamically optimizing the trade-off between capacity and performance.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the parameter of frequency resource allocation based on temporal broadening measurements. By measuring the temporal broadening of pilot signals and using this information to adjust which frequency resources are allocated to which users, the system optimizes communication performance while maintaining high capacity utilization of the FR2 band.

Inventive Principle:

Principle #35Parameter changes

2Speed

If high frequency bands (millimeter wave/terahertz) are used, then data processing speed increases, but temporal broadening and path loss increase

Engineering Contradiction:

Improvedata processing speedVSAvoidtemporal broadening and path loss

Core Design Contradiction:

SpeedVSObject-affected harmful factors

Solution Approach 1:

The patent implements a feedback mechanism where the base station measures temporal broadening using pilot signals transmitted by user equipment. This measurement information is fed back into the resource allocation decision process, allowing the system to compensate for the harmful effects of temporal broadening and path loss that inherently occur at high frequencies, thereby maintaining effective communication.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The patent performs preliminary measurement of temporal broadening characteristics using pilot signals before allocating frequency resources for actual data transmission. This advance measurement allows the system to pre-adjust resource allocation strategies to account for expected temporal broadening effects at millimeter wave and terahertz frequencies.

Inventive Principle:

Principle #10Preliminary action

3Ease of operation

If frequency resources are allocated without considering temporal broadening, then resource allocation simplicity is maintained, but communication performance deteriorates

Engineering Contradiction:

Improveresource allocation simplicityVSAvoidcommunication performance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The patent replaces complex adaptive resource allocation mechanisms with a simpler measurement-based approach. Instead of implementing complex real-time adaptation algorithms, the system uses straightforward temporal broadening measurements from pilot signals to guide frequency resource allocation, achieving good performance with relatively simple operational procedures.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Data Source

PatentUS12628133B2Communication resource allocation using temporally broadening pilot signal information

Publication Date: 2026.05.12 HYUNDAI MOTOR CO LTD

AI summary

A communication method and device may compensate for temporal broadening in a communication system. An operation method of a first communication node in a communication system, in the present disclosure, may include the steps of: transmitting, on a preset cycle, a first signal block including a pilot signal; receiving temporal broadening information about the pilot signal from a second communication node; allocating a communication resource to the second communication node on the basis of the temporary broadening information if communication with the second communication node is required; and communicating with the second communication node by using the allocated communication resource.