Beam Management Using Dual Polarization Arrays

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Solution Overview

Problem

There is a need for improved beam management mechanisms, particularly when two antenna arrays or panels are simultaneously used in communications networks, as existing methods do not disclose how to implement such processes effectively.

Innovation Solution

A method and device for simultaneous beam management using a radio transceiver device that transmits reference signals in different sets of beams across multiple antenna arrays and polarizations, reducing correlation between antenna arrays and enhancing spatial multiplexing and diversity.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two antenna arrays are simultaneously used for beam management, then spatial multiplexing and diversity are enhanced, but the complexity of the beam management procedure increases

Engineering Contradiction:

Improvespatial multiplexing capabilityVSAvoidbeam management procedure complexity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The beam management procedure is segmented into separate operations for each antenna array. Each antenna array transmits reference signals independently in its own set of beams, allowing the complexity to be divided into manageable parts rather than handling all antenna arrays simultaneously as a single complex operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Multiple antenna arrays are merged into a single beam management procedure by allowing them to transmit reference signals simultaneously in different sets of beams. This combining of operations enables spatial multiplexing and enhances diversity while maintaining manageable complexity through parallel processing.

Inventive Principle:

Principle #5Merging (Combining)

2Productivity

If reference signals are transmitted in multiple sets of beams across different antenna arrays, then beam management efficiency is improved, but the time required for the procedure increases

Engineering Contradiction:

Improvebeam management efficiencyVSAvoidbeam management procedure duration

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The beam management procedure maintains continuous useful action by allowing multiple antenna arrays to transmit reference signals simultaneously in different sets of beams. This parallel transmission continues the beam management process without idle time, improving efficiency while the simultaneous nature of the operation keeps the total duration manageable.

Inventive Principle:

Principle #20Continuity of useful action

Solution Approach 2:

Reference signals are transmitted in advance across multiple antenna arrays and beam sets before actual data communication begins. This preliminary action establishes the necessary beam information and channel characteristics upfront, allowing for more efficient subsequent communication while the distributed timing of the preliminary transmission keeps the overall duration controlled.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS10742298B2Beam management in a communications network

Publication Date: 2020.08.11 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

There is provided mechanisms for beam management. A method is performed by a radio transceiver device. The method comprises performing a beam management procedure by simultaneously transmitting a first reference signal in a first set of beams and a second reference signal in a second set of beams. The first set of beams is transmitted at a first antenna array of the radio transceiver device and in a first polarization. The second set of beams is transmitted at a second antenna array of the radio transceiver device and in a second polarization.