Spectrum Effect Inc.

Geovisible, Inc.

Charles Immendorf

Eamonn Gormley

David J Ryan

Rekha Menon

Diego Ayala

Jungnam Yun

Charles James Judson

Neil Stobie

Dave Ryan

A field interference investigation tool (FIIT) cooperates with a spectrum analysis system to identify the location of a source of non-cellular interference to a cellular telecommunications network. The FIIT may be provided with one or more characteristic of the interference that is used to confirm that interference detected by the FIIT device is relevant to the telecommunications system.

Enhanced system and method for detecting non-cellular RF interference sources to cellular networks

Time division duplexed (TDD) Cellular networks can experience interference in receive times from downlink transmissions by aggressor cells after network changes, or from tropospheric ducting. The interference from the aggressor cells can be efficiently mitigated by determining that the victim cell is being affected by such interference, identifying the aggressor cells, and selectively increasing the guard time between the aggressor cells and the victim cell.

Methods for mitigating interference and maximizing capacity for time division duplex cellular networks

Interference caused by passive intermodulation (PIM) can be automatically detected at receivers in a wireless telecommunications network, and the accuracy of PIM detection can be increased by de-weighting or ignoring time slots in which non-PIM interference is detected at a target receiver.

Enhanced passive intermodulation detection in wireless networks

A system and method that utilize data from co-sited cells that transmit and receive data on frequencies that are licensed to different operators facilitate sharing cellular configuration and performance data without revealing proprietary data to competing operators. Detection of external interference is enhanced by data from different operators.

Secure network information exchange for external interference detection and system for same

A method that identifies user equipment (UE) in both idle mode and connected mode in a cellular network is performed when an indication of an emergency situation is received. The method can identify all UEs within a geofenced area. The geofenced area can be an arbitrary shape that is automatically or manually created. The emergency system receives unique identities of UEs in the geofenced area that are provided when the location area identifier value is changed.

Method and system for user equipment identification in a network

A method that identifies user equipment (UE) in both idle mode and connected mode in a cellular network is performed when an indication of an emergency situation is received. A geofenced area is established around a location of the emergency situation, one or more cells are identified in the geofenced area, and an emergency system transmits a request to change a location area identifier value to one or more network providing service to the one or more cells. The emergency system receives unique identities of UEs in the geofenced area that are provided when the location area identifier value is changed.

Growing community of inventors

Kirkland, WA, United States of America

Charles Immendorf