2D Antenna Array Configuration for 3D MIMO Resource Management

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Solution Overview

Problem

The transition from one-dimensional to two-dimensional planar antenna arrays in LTE-Advanced systems increases the number of antenna ports, leading to resource inefficiencies and confusion in configuring Channel State Information Reference Signals (CSI-RS), as current protocols are inadequate for accurately determining antenna arrangements in two-dimensional configurations.

Innovation Solution

An information configuration method and apparatus that provide detailed configuration information for two-dimensional planar antenna arrays, including polarization, port numbers, arrangement modes, and resource allocation, to enable accurate configuration and resource management for user equipment (UE) in communication systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two-dimensional planar antenna arrays are used to increase the number of antenna ports, then the transmission signal can be adjusted in horizontal and vertical planes to improve system performance, but the reference signal occupies more resources and configuration information becomes ambiguous

Engineering Contradiction:

Improveadaptive control in horizontal and vertical dimensionsVSAvoidnumber of antenna ports

Core Design Contradiction:

Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent segments the configuration information into distinct components: total antenna ports, horizontal antenna ports, and vertical antenna ports. This segmentation allows the system to manage the complexity of 3D MIMO by breaking down the overall antenna configuration into manageable dimensional components, resolving the ambiguity in configuring reference signals for large numbers of antenna ports

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from one-dimensional antenna port configuration to two-dimensional planar array configuration by introducing horizontal and vertical dimension parameters. This dimensional expansion enables 3D MIMO functionality while providing structured configuration methods to manage the increased complexity through separate horizontal and vertical port specifications

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of operation

If the total number of antenna ports is configured without separable configuration in horizontal or vertical direction, then configuration is simplified, but the receiving end cannot accurately acquire the numbers of antenna ports in horizontal and vertical directions

Engineering Contradiction:

Improveconfiguration simplicityVSAvoidaccuracy of antenna port acquisition

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The patent divides the antenna port configuration into three segmented parameters: total antenna ports, horizontal antenna ports, and vertical antenna ports. This segmentation enables the receiving end to accurately acquire the numbers of antenna ports in both horizontal and vertical directions while maintaining configuration simplicity through a structured approach that builds upon existing total port configuration

Inventive Principle:

Principle #1Segmentation

3Adaptability or versatility

If multiple antenna arrangement modes meet the same total number of antenna ports, then configuration flexibility increases, but the receiving end cannot determine the specific arrangement mode

Engineering Contradiction:

Improveantenna arrangement flexibilityVSAvoidarrangement mode information

Core Design Contradiction:

Adaptability or versatilityVSLoss of information

Solution Approach 1:

The patent segments arrangement mode information into horizontal and vertical components, where each dimension's antenna port count provides specific information about the arrangement structure. This segmentation preserves arrangement mode information that would otherwise be lost, enabling the receiving end to determine specific arrangement modes while maintaining configuration flexibility

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces horizontal and vertical antenna port counts as intermediary parameters that mediate between the total antenna port configuration and the specific arrangement mode. These intermediaries carry the necessary information to resolve ambiguity in antenna arrangement while preserving configuration flexibility

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS11477657B2Information configuration method, information configuration apparatus and communication system

Publication Date: 2022.10.18 1FINITY INC

AI summary

A base station including: a controller configured to configure a plurality of configuration information, each of the plurality of configuration information includes resource configuration information, a number of antenna ports, and power control information; and a transmitter configured to transmit to terminal a control signal including the plurality of configuration information, wherein, the transmitter transmits to terminal an indication information that indicates configuration information to be used for measurement among the plurality of the configuration information.