UE Dynamic Scheduling With Antenna-Port Sets for Beam Alignment

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Solution Overview

Problem

In massive MIMO systems, the rapid changes in beam directions due to UE rotation or movement pose challenges in ensuring the robustness of physical layer control signaling, necessitating improved dynamic scheduling schemes.

Innovation Solution

A method for dynamic scheduling involving the reception and transmission of dynamically configured first and second information using antenna port sets and beamforming vectors to enhance communication robustness and efficiency, utilizing Q fields and R1 target vectors for beam alignment and resource allocation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If beamforming with multiple antennas is used to improve communication quality, then the beam direction becomes narrow and precise, but the system becomes sensitive to UE rotation or movement causing beam misalignment

Engineering Contradiction:

Improvebeam direction precisionVSAvoidbeam alignment robustness

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent segments the control information into two parts: first information (transmitted via wider beam or beam sweeping) and second information (transmitted via narrower beam). This segmentation allows the system to maintain both beam precision and alignment robustness by using different transmission strategies for different types of control information.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies preliminary action by transmitting first information before second information. The first information is transmitted via wider beam or beam sweeping to establish initial beam alignment and provide preliminary control signaling, ensuring that the UE is properly aligned before the more precise but narrower second information is transmitted.

Inventive Principle:

Principle #10Preliminary action

2Reliability

If first information is transmitted via wider beam to avoid misalignment, then beam alignment robustness is improved, but transmission efficiency decreases

Engineering Contradiction:

Improvebeam alignment robustnessVSAvoidtransmission efficiency

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The patent segments control information transmission into two stages: first information transmitted via wider beam for robustness, and second information transmitted via narrower beam for efficiency. This segmentation allows the system to achieve both robustness and efficiency by matching the transmission method to the specific information type and requirements.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent applies local quality by using different beam widths for different information types. The first information uses wider beam characteristics for robust coverage, while the second information uses narrower beam characteristics for focused, efficient transmission. Each part of the transmission process receives the quality appropriate to its specific needs.

Inventive Principle:

Principle #3Local quality

3Productivity

If second information is transmitted via narrower beam, then transmission efficiency is improved, but beam alignment precision requirements increase

Engineering Contradiction:

Improvetransmission efficiencyVSAvoidbeam alignment precision

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The patent uses preliminary action by transmitting first information via wider beam or beam sweeping before transmitting the second information via narrower beam. This preliminary alignment ensures that the UE is properly positioned and aligned before the high-precision narrow beam transmission occurs, reducing the risk of misalignment.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent segments the transmission process into two distinct phases: a preliminary phase with wider beam for alignment and robustness, followed by a precision phase with narrower beam for efficiency. This segmentation allows the system to meet the high alignment precision requirements of narrow beam transmission by ensuring alignment is established in advance.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12464510B2Method and device in UE and base station used for dynamic scheduling

Publication Date: 2025.11.04 APEX BEAM TECHNOLOGIES LLC

AI summary

The present disclosure provides a method and device in User Equipment (UE) and a base station for dynamic scheduling. The UE first receives first information; and then receives second information; and operates a first radio signal. Wherein the first information comprises Q field(s), a first field is used to determine a first antenna port set, the first field is one field of the Q field(s). The first antenna port set comprises a positive integer of antenna port(s), the second information is transmitted by an antenna port within the first antenna port set. The first information and the second information are both dynamically configured. The operating refers to receiving, or the operating refers to transmitting. The second information is used to determine scheduling information of the first radio signal. The present disclosure ensures the robustness of scheduling signaling reception in multi-antenna scenarios, and also avoids excessive overhead, hence improving transmission efficiency.