Multi-Panel Uplink Scheduling for Terminal Throughput Control

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Solution Overview

Problem

Existing radio communication systems lack sufficient study on how to control simultaneous uplink transmission using multiple panels, leading to potential degradation in system performance such as throughput reduction.

Innovation Solution

A terminal with a control section that determines a time period for simultaneous uplink transmission based on support indications and transmits uplink signals using multiple panels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If simultaneous uplink transmission using multiple panels is implemented, then throughput and reliability are improved, but system complexity increases due to lack of control mechanisms

Engineering Contradiction:
ImprovethroughputVSAvoidcontrol mechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The terminal reports its capability to perform simultaneous uplink transmission using multiple panels in advance. This preliminary capability indication allows the base station to prepare appropriate scheduling configurations before actual transmission occurs, avoiding complex real-time control decisions and reducing overall system complexity while enabling high throughput.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The base station receives capability reports from the terminal regarding simultaneous multi-panel transmission support, uses this feedback information to configure appropriate transmission parameters, and adjusts scheduling decisions accordingly. This feedback mechanism enables the system to adapt to terminal capabilities without requiring complex built-in control logic at the terminal end.

Inventive Principle:
Principle #23Feedback

2Productivity

If simultaneous uplink transmission using multiple panels is performed without adequate control studies, then transmission capacity increases, but system performance degrades due to lack of optimization

Engineering Contradiction:
Improvetransmission capacityVSAvoidsystem performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent defines specific parameters for controlling simultaneous uplink transmission, including time period determination based on capability reports and indication signals. By establishing clear parameter specifications for when and how multi-panel transmission should occur, the system achieves both high transmission capacity and reliable performance through optimized control mechanisms.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentEP4712642A1Terminal, wireless communication method, and base station
Publication Date: 2026.03.18 NTT DOCOMO INC
  • EP4712642A1 patent drawingFigure 1
  • EP4712642A1 patent drawingFigure 2A~2B
  • EP4712642A1 patent drawingFigure 3A~3C

AI summary

A terminal according to an aspect of the present disclosure includes: a control section that determines, based on at least one of report on whether simultaneous uplink transmission using a plurality of panels is supported and indication related to the simultaneous uplink transmission, a time period which the simultaneous uplink transmission is possible; and a transmitting section that transmits one or more uplink signals by using the time period. An aspect of the present disclosure enables UL transmission using a plurality of panels to be appropriately performed.