Patent ID: 8406685
Filing Date: 2013-03-26
Classification: H04B,H04M

Abstract:
1. A method for intercepting and monitoring of cellular satellite communication wherein communication between at least one mobile device (MES) and the satellite is through a first band link that includes plurality of first-band spot beams each accommodating at least one basic channel unit that includes a control channel and corresponding traffic channels, and communication between the satellite and main station is through wideband second-band link accommodating plurality of second band spot beams each accommodating at least one basic channel unit that includes a control channel and corresponding traffic channels, wherein the satellite employs a mapping scheme between the first band and the second band, the method comprising detecting an actual mapping between a control channel of the downlink first band link and corresponding control channel of downlink second band link by identifying identical unique spot beam number (SB_Mask) data in the respective control channels.