Time-Domain Pattern Switching for Asynchronous Base Station Interference

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing time domain patterns for communication, leading to interference and inefficiencies, particularly in asynchronous networks with unsynchronized base stations.

Innovation Solution

Implementing a method for switching between different time domain patterns based on indications received from a base station or UE, allowing for dynamic adjustments to communication patterns, such as converting downlink slots to uplink slots to reduce interference and improve communication efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If time domain patterns are fixed in asynchronous networks, then network synchronization is simplified, but interference between base stations increases and communication efficiency deteriorates

Engineering Contradiction:

Improvesynchronization complexityVSAvoidcommunication efficiency

Core Design Contradiction:

Device complexityVSProductivity

Solution Approach 1:

The patent applies dynamics by enabling base stations to dynamically switch between different time domain patterns (first pattern with longer cycle, second pattern with shorter cycle) based on real-time communication conditions. This allows the system to adapt transmission timing to reduce interference while maintaining asynchronous operation, resolving the contradiction between synchronization simplicity and communication efficiency.

Inventive Principle:

Principle #15Dynamics

2Productivity

If time domain patterns are switched frequently to reduce interference, then communication efficiency improves, but switching latency and system complexity increase

Engineering Contradiction:

Improvecommunication efficiencyVSAvoidswitching latency

Core Design Contradiction:

ProductivityVSLoss of time

Solution Approach 1:

The patent changes the time domain pattern parameters (cycle length, slot allocation) dynamically by switching between pre-defined first and second patterns. The base station selects appropriate patterns based on communication conditions, enabling interference reduction without requiring complex real-time pattern generation, thus limiting switching latency while improving efficiency.

Inventive Principle:

Principle #35Parameter changes

3Object-affected harmful factors

If longer time domain patterns are used, then interference reduction is improved, but response time to communication changes increases

Engineering Contradiction:

Improveinterference reductionVSAvoidresponse speed

Core Design Contradiction:

Object-affected harmful factorsVSSpeed

Solution Approach 1:

The patent resolves this contradiction by providing two dynamic time domain patterns: a first pattern with longer cycle for interference reduction and a second pattern with shorter cycle for faster response. The base station can switch between them based on communication conditions, achieving both interference reduction and responsive adaptation to changing traffic requirements.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12593318B2Time domain pattern switching

Publication Date: 2026.03.31 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may receive, from a base station, an indication to switch from a first time domain pattern to a second time domain pattern. The UE may switch to the second time domain pattern a switching time duration after receiving the indication. The UE may communicate with the base station according to the second time domain pattern. Numerous other aspects are described.