User Equipment Jamming Detection and Signalling in Mobile Networks
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Solution Overview
Problem
User equipment in mobile telecommunications networks cannot detect or signal the presence of jammers, which prevent communication by drowning out base station signals with high power noise, making it impossible to complete communication sessions or alert the network or security agencies.
Innovation Solution
Integrating jamming detection features into user equipment, allowing it to measure signal power levels, check for Base Station Identity Codes, and send a jammed condition report to the base station if decoding fails across multiple channels, thereby enabling the equipment to autonomously detect and signal jamming without external apparatuses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If jammers transmit high power noise signals over communication channels, then communication between user equipment and base station is blocked, but the user equipment cannot signal its jammed condition to the network
Solution Approach 1:
The patent uses the uplink communication channel as an intermediary to transmit jamming detection information from user equipment to the base station. Even when downlink channels are jammed, the uplink channel remains available for the UE to report jamming conditions, allowing the network to receive critical information about the jammed state without requiring separate external detection apparatus.
Solution Approach 2:
The user equipment performs self-detection of jamming conditions by measuring signal power levels and attempting to decode Base Station Identity Codes on its own. This self-service approach eliminates the need for external detection devices and allows the UE to autonomously identify and report jamming, maintaining communication reliability through internal monitoring capabilities.
2Adaptability or versatility
If user equipment attempts to communicate with the base station in a jammed area, then communication sessions cannot be completed, but external detection apparatuses would be required to detect jamming
Solution Approach 1:
The patent makes the user equipment multi-functional by enabling it to both communicate with the base station and detect jamming conditions using the same device. The UE utilizes its existing receiver and processor to perform jamming detection in addition to normal communication functions, eliminating the need for separate external detection apparatus and reducing overall system complexity while maintaining adaptability.
Solution Approach 2:
The user equipment autonomously performs jamming detection by measuring signal power levels and attempting to decode Base Station Identity Codes without requiring external assistance. This self-service capability allows the UE to adapt to jammed environments and report conditions independently, avoiding the complexity of external detection systems while maintaining versatile jamming detection functionality.
3Reliability
If user equipment signals jammed condition reports on jammed channels, then collision problems occur, but without signalling the network cannot take countermeasures
Solution Approach 1:
The patent uses the uplink channel as an intermediary for transmitting jamming detection information, separating the reporting function from the jammed downlink channels. This intermediary approach allows the UE to signal jammed conditions without colliding with jamming noise, as the uplink channel operates independently from the jammed downlink paths, enabling reliable reporting without harmful collisions.
Data Source
AI summary
Method for jamming detection in a mobile telecommunications network comprising the steps of, at a user equipment registered with the mobile telecommunications network: a) measuring a signal power level in at least one of a plurality of communication channels between the user equipment and a base station within a band of operation of the mobile telecommunications network; b) checking whether the signal power level in said at least one communication channel is greater than a threshold MNPL and, if so, attempting to decode a Base Station Identity Code BSIC broadcast by the base station in said communication channel; c) repeating steps a) and b) for a certain number of channels; d) signalling a jammed condition report JDR message to the base station if said BSIC cannot be decoded for said number DCMN of channels.