公开(公告)号：NO20060211A

公开(公告)日：2006-03-09

申请号：NO20060211

申请日：2006-01-13

Applicant: INMARSAT LTD

Inventor： GRANT ALEXANDER

IPC: H04J99/00 ,  H04B1/707

CPC classification number: H04B1/71072 ,  H04B1/71075

公开(公告)号：CA2315795C

公开(公告)日：2006-01-31

申请号：CA2315795

申请日：1997-12-24

Applicant: INMARSAT LTD

Inventor： FARRELL WADE NICHOLAS ,  RICE MARK

IPC: H03M13/23 ,  H03M13/29 ,  H03M13/00 ,  H03M13/27 ,  H04L1/00 ,  H04L27/34 ,  H04L27/36

Abstract: A parallel concatenated coder (20) outputs a sequence of data sets in which earlier data sets contain data bits (d) and non-interleaved parity bits (p) without interleaved parity bits (q), while later data sets include the interleaved parity bits (q). Each data set is modulated as one symbol. The output format partially overcomes the delay incurred by interleaving the parity bits (q), with a substantially even distribution of data and parity bits in the sequence of data sets. The delay may be reduced further by interleaving with an index constraint.

公开(公告)号：SG115402A1

公开(公告)日：2005-10-28

申请号：SG200105447

申请日：1999-10-08

Applicant: INMARSAT LTD

Inventor： HOWARD CHRIS FRANK ,  CHRISTODOULIDES LOUIS MIMIS ,  FEBVRE PAUL ,  MUDGE DAVID DENIS

IPC: H04B7/185 ,  H04B7/212 ,  H04L12/56 ,  H04L29/06 ,  H04W12/06 ,  H04W60/00 ,  H04W72/04 ,  H04W72/12 ,  H04L5/22 ,  H04Q7/38

Abstract: A method for authenticating terminals in a wireless communication service involves receiving registration requests from terminals requiring access, transmitting to each of the terminals a signalling channel assignment signal allocating a duplex signalling channel uniquely to each terminal, transmitting in the signalling channel an authentication request signal, receiving an authentication response signal in the channel, the contents of which depend on the context of the authentication request signal, and deciding whether to allow access to the system according to the contents of the authentication response signal.

公开(公告)号：NO20054574D0

公开(公告)日：2005-10-05

申请号：NO20054574

申请日：2005-10-05

Applicant: INMARSAT LTD

Inventor： FEBVRE PAUL ROGER ,  MUDGE DAVID DENIS ,  JONES EDWARD ARTHUR ,  FINES PANAGIOTIS

IPC: H04B20060101 ,  H04B

公开(公告)号：GB2370457B

公开(公告)日：2005-03-09

申请号：GB0031323

申请日：2000-12-21

Applicant: INMARSAT LTD

Inventor： TRACHTMAN EYAL ,  NEMES JOHNNY ,  CHEONG KENRICK PHILIP

IPC: H04N5/44 ,  H04B7/185 ,  H04H20/62 ,  H04H40/90 ,  H04N7/16 ,  H04N7/173 ,  H04N7/20

Abstract: A system for providing real-time television broadcasts to an aircraft (4) via satellite (2) is described. The broadcast signal (11) is transmitted to the aircraft (4) together with a communications signal (10), forming part of an existing communications network air interface. The system separates the communications signal (10) from the broadcast signal (11) and enables the real-time broadcast to be displayed on-board the aircraft.

公开(公告)号：AU2003255738A1

公开(公告)日：2005-01-04

申请号：AU2003255738

申请日：2003-07-29

Applicant: INMARSAT LTD

Inventor： GRANT ALEXANDER

IPC: H04B1/707 ,  H04L1/00

公开(公告)号：GB2370452B

公开(公告)日：2004-10-20

申请号：GB0030978

申请日：2000-12-19

Applicant: INMARSAT LTD

Inventor： TRACHTMAN EYAL

IPC: H04W16/00 ,  H04W16/12 ,  H04Q7/36

公开(公告)号：NO317327B1

公开(公告)日：2004-10-11

申请号：NO980361

申请日：1998-01-27

Applicant: INMARSAT LTD

Inventor： FEBVRE PAUL ,  PHILLIPS KEVIN

IPC: H04B7/15 ,  H04B7/185 ,  H04B7/204

Abstract: A mobile terminal (6) communicates via a satellite (8), which projects a number of overlapping spot beams (10), with a fixed earth station (2). To determine which spot beam (10) is to be used for communication, the mobile terminal signals in a common signalling channel which is simultaneously received by all, or a subgroup of, the spot beams (10). The satellite (8) retransmits to the fixed earth station (2) in separate channels the signal as received by each of the spot beams (10) which are able to receive the common signalling channel. The relative strengths of the signal as received in the different spot beams (10) are compared at the fixed earth station and a communications channel is assigned to the mobile terminal in one of the spot beams (10), selected according to the comparison of signal strengths.

公开(公告)号：DE60104144D1

公开(公告)日：2004-08-05

申请号：DE60104144

申请日：2001-12-14

Applicant: INMARSAT LTD

Inventor： TRACHTMAN EYAL

IPC: H04W16/00 ,  H04W16/12 ,  H04Q7/36

公开(公告)号：AU773824B2

公开(公告)日：2004-06-10

申请号：AU5943099

申请日：1999-11-15

Applicant: INMARSAT LTD

Inventor： FEBVRE PAUL ,  MUDGE DAVID DENIS ,  JONES EDWARD ARTHUR ,  FINES PANAGIOTIS

IPC: H04J3/00 ,  H04B7/212 ,  H04B7/26 ,  H04J3/06 ,  H04L7/10 ,  H04B7/005 ,  H04L7/00 ,  H04Q7/38

Abstract: To demodulate the received bursts correctly, the timing of reception of the bursts is predicted by a receive timing controller (29) which receives the frame timing control information from the frame timing function (14) and parameters of the satellite (4) from the hardware adaptation layer HAL (10). These parameters define the position of the satellite and of its beams and allow the timing of arrival of data bursts from the mobile access node to satellite access node to be predicted. An independent claim is also included for a wireless link signal comprising a data burst including in temporal sequence, a method of receiving signal over a wireless link.