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US 10,104,559 B2Granted
Method for downlink jammer detection and avoidance in long-term evolution (LTE) networks
AssigneeSpectrum Effect Inc.
InventorsChaz Immendorf, Jungnam Yun, Eamonn Gormley
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Abstract
A method for handling a jamming signal in a wireless network includes obtaining network measurement data on a wireless network performance, the network measurement data collected by a wireless network element. A first performance information on the wireless network performance is derived based on the network measurement data obtained. The first performance information is examined with respect to a predefined value. An alert is issued to indicate a presence of a potential jamming signal based on a result of the examination of the first performance information.
Claims16
A method for handling a bogus synchronization signal in a wireless network, the method comprising:
- determining a key performance indicator (KPI) for the wireless network, the KPI being based on performance data collected by an element of the wireless network;
- examining the KPI for the network with respect to a predefined value;
- issuing an alert indicating a presence of a potential bogus signal based on a result of the examination of the first performance information;
- and
- obtaining additional network measurement data by:
- scheduling quiet resource blocks in which no transmissions occur from a base station in channels used for base station synchronization,
- receiving signals during the quiet resource blocks,
- determining time and frequency characteristics of the received signals, and
- comparing the time and frequency characteristics of the received signals to time and frequency characteristics of known bogus signals including at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal stored in a database of the known bogus signals to determine whether the received signals include one of the known bogus signals,
- wherein the bogus signal includes at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal.
7 more elements
A system for handling a bogus synchronization signal in a wireless network, the system comprising:
- a processor;
- and
- a non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, perform the following method:
- determining a key performance indicator (KPI) for the wireless network, the KPI being based on performance data collected by an element of the wireless network;
- examining the KPI for the network with respect to a predefined value;
- and
- issuing an alert indicating a presence of a potential bogus synchronization signal based on a result of the examination of the first performance information;
- and
- obtaining additional network measurement data by:
- scheduling quiet resource blocks in which no transmissions occur from a base station in channels used for base station synchronization,
- receiving signals during the quiet resource blocks,
- determining characteristics of the received signals, and
- determining time and frequency characteristics of the received signals, and
- comparing the time and frequency characteristics of the received signals to time and frequency characteristics of known bogus signals including at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal stored in a database of the known bogus signals to determine whether the received signals include one of the known bogus signals,
- wherein the bogus signal includes at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal.
12 more elements
A non-transitory computer readable medium with computer executable instructions stored thereon which, when executed by the processor, perform the following method:
- determining a key performance indicator (KPI) for the wireless network, the KPI being based on performance data collected by an element of the wireless network;
- examining the KPI for the network with respect to a predefined value;
- and
- issuing an alert indicating a presence of a potential bogus synchronization signal based on a result of the examination of the first performance information;
- and
- obtaining additional network measurement data by:
- scheduling quiet resource blocks in which no transmissions occur from a base station in channels used for base station synchronization,
- receiving signals during the quiet resource blocks,
- determining time and frequency characteristics of the received signals, and
- comparing the time and frequency characteristics of the received signals to time and frequency characteristics of known bogus signals including at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal stored in a database of the known bogus signals to determine whether the received signals include one of the known bogus signals,
- wherein the bogus signal includes at least one of a bogus Primary Synchronization Signal (PSS), a bogus Secondary Synchronization Signal (SSS), and a bogus Broadcast Channel (BCH) signal.
8 more elements
Dependencies are inferred from the claim text.