Uplink Prioritization Across Multiple Timing Advance Groups

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Solution Overview

Problem

Existing wireless communication systems face challenges in efficiently managing uplink communications with multiple timing advances, leading to overlapping transmissions that can cause interference and reduce communication efficiency.

Innovation Solution

A user equipment (UE) determines overlapping uplink communications with different timing advance groups and transmits a portion of the first uplink communication based on a selection condition, ensuring efficient prioritization and reduction of interference.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If multiple uplink communications with different timing advance groups are transmitted simultaneously, then communication coverage and service capability are improved, but transmission interference and resource conflicts occur

Engineering Contradiction:

Improvecommunication service capabilityVSAvoidtransmission interference

Core Design Contradiction:

Adaptability or versatilityVSObject-generated harmful factors

Solution Approach 1:

The patent implements dynamic prioritization of uplink communications by introducing a selection condition mechanism that adapts to different transmission scenarios. When timing advance group communications overlap, the system dynamically selects which communication to prioritize based on predefined conditions, making the transmission schedule flexible and adaptive rather than static and conflict-prone.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the timing parameter by introducing a selection condition that determines which uplink communication is transmitted when overlaps occur. This parameter change in transmission timing and priority selection resolves the interference issue by ensuring that only one communication is active at any given time, preventing simultaneous transmissions that cause harm.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If uplink communications with different timing advances are scheduled without prioritization, then resource utilization is maximized, but communication reliability deteriorates due to overlapping transmissions

Engineering Contradiction:

Improveresource utilizationVSAvoidcommunication reliability

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by establishing selection conditions before transmissions occur. The UE evaluates potential overlapping communications in advance and determines priority based on predefined criteria, preventing reliability issues before they arise rather than resolving conflicts after they occur.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where the UE continuously monitors its transmission schedule and applies selection conditions to resolve overlaps. This feedback loop ensures that communication reliability is maintained by adjusting transmission priorities based on the actual timing advance group configurations and potential conflicts.

Inventive Principle:

Principle #23Feedback

3Object-generated harmful factors

If a selection condition is introduced to prioritize uplink communications, then transmission interference is reduced, but device complexity increases

Engineering Contradiction:

Improvetransmission interferenceVSAvoidprioritization logic complexity

Core Design Contradiction:

Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The patent segments the prioritization logic into distinct selection conditions that can be independently evaluated. By breaking down the complex prioritization task into manageable conditional checks, the implementation becomes more structured and easier to manage, reducing the perceived complexity while maintaining effective interference reduction.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS20260032607A1Uplink communication prioritization for multiple timing advances

Publication Date: 2026.01.29 QUALCOMM INC

AI summary

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may determine that a first uplink communication to be transmitted overlaps, at an overlapped duration in a time domain, a second uplink communication to be transmitted, the first uplink communication corresponding to a first timing advance (TA) group (TAG) and having a first uplink TA and the second uplink communication corresponding to a second TAG and having a second uplink TA. The UE may transmit at least a portion of the first uplink communication based at least in part on the first uplink communication satisfying a selection condition, the at least the portion of the first uplink communication comprising an overlapped portion of the first uplink communication corresponding to the overlapped duration. Numerous other aspects are described.