Base Station Multilink Trigger Frame Transmission

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Solution Overview

Problem

There is a delay in data transmission on the uplink in wireless communication systems.

Innovation Solution

A base station with a link management unit that establishes a multilink with a wireless terminal apparatus, generates a trigger frame to initiate uplink data transmission, and uses multiple wireless signal processing units to transmit the trigger frame.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If a single link is used for uplink data transmission, then the system complexity is low, but the transmission delay increases

Engineering Contradiction:

Improveuplink data transmission delayVSAvoidmultilink system complexity

Core Design Contradiction:

Loss of timeVSDevice complexity

Solution Approach 1:

The base station segments the trigger frame transmission across multiple wireless signal processing units (first, second, and third units), each responsible for transmitting the trigger frame through different links. This segmentation enables parallel transmission paths, reducing the overall transmission delay by allowing the terminal to receive the trigger frame through any available link simultaneously

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent introduces a temporal dimension to the transmission system by scheduling trigger frame transmissions at different time points across multiple links. The base station can transmit the same trigger frame through different links at different times, creating a time-diversity effect that reduces the probability of simultaneous transmission failures and thereby reduces transmission delay

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Loss of time

If multiple wireless signal processing units are used to transmit trigger frames, then the uplink data transmission delay is reduced, but the energy consumption increases

Engineering Contradiction:

Improvetrigger frame transmission delayVSAvoidbase station energy consumption

Core Design Contradiction:

Loss of timeVSUse of energy by moving object

Solution Approach 1:

The base station employs a selective activation strategy where not all wireless signal processing units are activated simultaneously for every trigger frame transmission. Instead, the system activates only the necessary number of units based on current transmission requirements, channel conditions, and quality of service demands, thereby reducing overall energy consumption while still achieving the goal of reduced transmission delay through parallel transmission paths

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250193953A1Base station and wireless terminal apparatus

Publication Date: 2025.06.12 NT T INC

AI summary

A base station of the embodiment includes a first wireless signal processing unit, a second wireless signal processing unit, and a link management unit. The link management unit establishes a multilink with a wireless terminal apparatus by using the first wireless signal processing unit and the second wireless signal processing unit. The link management unit generates a trigger frame for causing the wireless terminal apparatus to transmit uplink data, and causes each of the first wireless signal processing unit and the second wireless signal processing unit to transmit the trigger frame.