LTE Transceiver Emergency Message Reception Interference Management
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Solution Overview
Problem
Wireless communication devices face interference issues between LTE transceivers and ISM band transceivers during emergency message servicing, which can disrupt the reception of high-priority communications.
Innovation Solution
A method and system for detecting high-priority communication activity on LTE transceivers, adjusting settings to account for this activity by disabling or modifying ISM band transceivers, such as Wi-Fi or Bluetooth, to minimize interference and ensure successful emergency message reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ISM band transceivers (Wi-Fi, Bluetooth) are disabled during LTE emergency message reception, then interference is reduced and reception reliability is improved, but device functionality and user convenience deteriorate
Solution Approach 1:
The system performs preliminary detection of emergency message indications (ETWS, CMAS, paging messages) before actual reception occurs. When such indications are detected, the LTE transceiver proactively disables ISM band transceivers in advance to prevent potential interference, ensuring reliable emergency message reception without waiting for interference to actually occur
Solution Approach 2:
The system dynamically adjusts transceiver settings based on real-time detection of emergency communication conditions. The LTE transceiver monitors for emergency message indications and automatically disables ISM band transceivers only during the specific time periods when emergency messages are being received, then re-enables them afterward. This dynamic adaptation allows the device to maintain full functionality during normal operation while ensuring reliability during emergency communications
2Adaptability or versatility
If ISM band transceivers operate simultaneously with LTE transceiver, then device versatility is maintained, but interference occurs disrupting emergency communications
Solution Approach 1:
The system extracts and isolates the interfering element (ISM band transceivers) from the system during critical periods. When emergency message reception is detected or indicated, the LTE transceiver disables Wi-Fi and Bluetooth transceivers, removing their potential interference effect. This selective extraction allows the system to eliminate harmful interference only when necessary while maintaining normal multi-transceiver operation during non-emergency periods
Solution Approach 2:
The system applies preliminary counter-action by disabling ISM band transceivers before interference can occur. Upon detecting emergency message indications (ETWS, CMAS, or paging messages), the LTE transceiver proactively disables Wi-Fi and Bluetooth transceivers in advance of the actual emergency message reception, preventing potential interference before it can affect communication quality
Data Source
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AI summary
A method for servicing emergency messages by a user equipment (UE) is described. High priority communication (HPC) activity is detected on a Long Term Evolution (LTE) transceiver. Adjustments to be made to one or more transceivers to account for the HPC activity are determined. Settings of the one or more transceivers are adjusted to account for the HPC activity. An end of the HPC activity on the LTE transceiver is detected. The settings of the one or more transceivers are adjusted to account for the end of the HPC activity.