Autonomous UE Tune-Away Feedback for Wireless Network Efficiency

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Solution Overview

Problem

Autonomous tune-away operations by user equipment (UE) in wireless networks can lead to inefficiencies, such as data retransmissions, due to lack of coordination with the network, disrupting Hybrid-Automatic Repeat Request (HARQ) operations and other transmission schemes.

Innovation Solution

The UE performs an autonomous tune-away operation by receiving a first set of data units from a first base station, transmitting an indication of reception during the tune-away period, and receiving a third set of data units after the tune-away, allowing the base station to adjust its transmission accordingly to reduce inefficiencies.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the UE performs an autonomous tune-away operation without network coordination, then the UE can receive positioning signals from different base stations, but the network efficiency deteriorates due to data retransmissions and disrupted HARQ operations

Engineering Contradiction:

ImproveUE's ability to receive positioning signals from different base stationsVSAvoidNetwork efficiency

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

The UE transmits an indication of reception during the tune-away period, allowing the base station to prepare for and adjust subsequent transmissions. This preliminary feedback mechanism enables the network to anticipate the UE's reception status and optimize data retransmission timing, reducing overall network inefficiency while maintaining autonomous tune-away capability

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The UE provides feedback to the base station during the tune-away period by transmitting an indication of reception. This feedback loop allows the base station to adjust its transmission strategy, ensuring that data units are retransmitted at appropriate times without disrupting HARQ operations or wasting network resources

Inventive Principle:

Principle #23Feedback

2Productivity

If the UE transmits an indication of reception during the tune-away period, then data retransmissions are minimized, but the UE must maintain additional transmission operations during the tune-away period

Engineering Contradiction:

ImproveNetwork efficiencyVSAvoidUE operation complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The UE autonomously manages the indication transmission without requiring network coordination or additional complex protocols. The UE simply transmits the indication during the tune-away period, and the base station handles the rest, making the system self-managing and reducing overall operational complexity

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS10498498B2Techniques for autonomous user equipment tune-away operations

Publication Date: 2019.12.03 QUALCOMM INC

AI summary

Techniques are provided for use by an user equipment (UE) to perform an autonomous tune-away period of operation. The techniques allow the UE to transmit an indication of reception to a first base station during the autonomous tune-away period of operation during which the UE may be configured to receive signals from a second base station. The indication of reception may correspond to a signal transmitted or to be transmitted by the first base station during the autonomous tune-away period of operation. The indication of reception transmitted during the autonomous tune-away period of time may influence signals transmitted by the first base station after an end of the autonomous tune-away period of operation.