公开(公告)号：ITRM980374D0

公开(公告)日：1998-06-10

申请号：ITRM980374

申请日：1998-06-10

Applicant: MOTOROLA INC

Inventor： KANE JOHN RICHARD ,  OLDS KEITH ANDREW ,  KAPOOR VIJAY

IPC: H04B7/185

Abstract: In a communication system having Low Earth Orbit (LEO) satellites (210), one or more Mission Operations Control Centers (MOCCs) (220), one or more Distributed Virtual Network Managers (DVNMs) (230), and several types of Customer Premises Equipment (CPE) (250, 260, 270, and 280), individual service providers (20) are able to control the network services they provide independently from other service providers (20) through local management of the DVNMs (230).

公开(公告)号：GB2320163A

公开(公告)日：1998-06-10

申请号：GB9722726

申请日：1997-10-29

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW

IPC: B64G1/10 ,  H04B7/185 ,  H04B7/195

Abstract: A hybrid constellation satellite communication system 100 is established using two satellite types 110, 120 in different constellations. The two different satellite types are connected to system control centres 140 via control links 105, 135 and to subscriber equipment 150 via subscriber links 155, 145. Control services and other time delay non-sensitive services are provided using communication channels using the first type of satellites 110. Time delay sensitive services are provided using communication channels established using the second type of satellites 120. There are no inter-satellite links between the satellites of different constellations. The constellations may be formed of low earth, medium earth or geosynchronous orbit satellites.

公开(公告)号：NL1007685A1

公开(公告)日：1998-06-08

申请号：NL1007685

申请日：1997-12-03

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW

IPC: B64G1/10 ,  H04B7/185 ,  H04B7/195 ,  H04B7/19

Abstract: A hybrid constellation satellite communication system (100) is established using two or more satellite types (110, 120) in different constellations. The two or more satellite types (110, 120) are connected to system control centers (140) via control links (105, 135) which provides a communication path from the satellite constellations to the system control centers (140). The two or more satellite types (110, 120) are also connected to subscriber equipment (150) via subscriber links (155, 145) which provides a communication path from the satellite constellations to the subscriber equipment (150). The first type of satellites (110) are interconnected using upper inter-satellite links (115). The second type of satellites (120) are interconnected using lower inter-satellite links (125). Control services and other time delay non-sensitive services are provided using communication channels established using the first type of satellites (110). Time delay sensitive services are provided using communication channels established using the second type of satellites (120). There are no inter-satellite links between satellites in the two different constellations.

公开(公告)号：ITRM960824A1

公开(公告)日：1998-06-02

申请号：ITRM960824

申请日：1996-12-02

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  PETERSON KENNETH MAYNARD ,  LEOPOLD RAYMOND JOSEPH ,  SWAN PETER A

IPC: H04M3/00 ,  H04B7/15 ,  H04B7/185 ,  H04W8/06

公开(公告)号：GB2319699A

公开(公告)日：1998-05-27

申请号：GB9722713

申请日：1997-10-29

Applicant: MOTOROLA INC

Inventor： BISHOP JUNIOR JAMES WILLIAM ,  OLDS KEITH ANDREW ,  ARMBRUSTER PETER JOSEPH ,  ASWATH RAO

IPC: H04B7/185 ,  H04L12/56 ,  H04W72/04 ,  H04W74/04 ,  H04W84/06

Abstract: In a packet data communication system a subscriber unit sends a request for use of a channel indicating the number of data packets to be transmitted. A system controller allocates time slots of a channel for at least some of the data packets. After transmission the subscriber unit repeats the request indicating the number of any remaining data packets, until all data packets have been transmitted. In a satellite telecommunication system the subscriber unit 30,32 assembles the data packets, determines the number it wants to transmit and sends the request message to a satellite 20. The satellite responds with either a request denied message or a request allowed message indicating the available time slots.

公开(公告)号：ITRM970255A1

公开(公告)日：1997-11-29

申请号：ITRM970255

申请日：1997-04-30

Applicant: MOTOROLA INC

Inventor： DANIEL BRIAN ,  LOCKE JOHN ,  OLDS KEITH ANDREW ,  PETERSON KENNETH

IPC: H04M20060101 ,  H04W16/02 ,  H04W16/12

公开(公告)号：CA2177077A1

公开(公告)日：1996-05-09

申请号：CA2177077

申请日：1995-08-11

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  CUTLER VICTOR H JR ,  DAVIEAU GERALD J

IPC: H04Q7/36

Abstract: Methods (70, 100, 150) efficiently assign user channels in a LEO (low-earth orbit) telecommunication system (10). These methods (70, 100, 150) adapt the channel reuses based on system load or demand. These methods (70, 100, 150) achieve high capacity and minimize interference for the particular situation. Since these methods (70, 100, 150) are adaptive, they adjust to maintain efficient operation as the load conditions change.

公开(公告)号：CA2201154A1

公开(公告)日：1996-04-11

申请号：CA2201154

申请日：1995-07-28

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  VATT GREGORY BARTON ,  KURBY CHRISTOPHER NEIL

IPC: H04B7/185 ,  H04Q7/38

Abstract: A satellite communication system (116) provides users with global cellular coverage. To facilitate delivery of calls to users having subscriber units (300), a fixed channel is defined wherein subscriber units (300) are notified of incoming calls. Subscriber units (300) monitor this ring alert channel (48) and examine subscriber unit IDs (90) transmitted in a ring alert message (82) contained therein. When a subscriber unit (300) determines from the subscriber unit ID (90) that a call is being directed to it, it calls into a network to receive a call. Subscriber units (300) also monitor this fixed channel to receive a control channel directory identifying the location of a subscriber unit's broadcast (control) channels.

公开(公告)号：CA2177077C

公开(公告)日：2005-12-06

申请号：CA2177077

申请日：1995-08-11

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  CUTLER VICTOR H JR ,  DAVIEAU GERALD J

IPC: H04Q7/36

Abstract: Methods (70, 100, 150) efficiently as- sign user channels in a LEO (low-earth or- bit) telecommunication system (10). These methods (70, 100, 150) adapt the channel reuses based on system load or demand. These methods (70, 100, 150) achieve high capacity and minimize interference for the particular situation. Since these methods (70, 100, 150) are adaptive, they adjust to maintain efficient operation as the load con- ditions change.

公开(公告)号：FR2720887B1

公开(公告)日：2000-02-04

申请号：FR9506515

申请日：1995-06-01

Applicant: MOTOROLA INC

Inventor： OLDS KEITH ANDREW ,  REDDEN JAMES POWERS ,  KURBY CHRISTOPHER NEIL

IPC: H04B7/204 ,  H04B7/185 ,  H04W36/08 ,  H04Q7/22

Abstract: Handoff methods perform cell-to-cell handoff between cells of the same satellite and between cells of different satellites. Handoff is initiated by an individual subscriber unit (ISU) based on local conditions. Once handoff is needed, the ISU chooses a candidate cell to transfer its communication based on a dynamic handoff candidate list provided by the satellite. After selecting a candidate cell, the ISU requests handoff, the satellite or satellites perform the handoff and communication begins over a new channel in the candidate cell.