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公开(公告)号:GB2368240A
公开(公告)日:2002-04-24
申请号:GB0025762
申请日:2000-10-20
Applicant: MOTOROLA INC
Inventor: SHAHAF MARK , SERFATY SALOMON , CARMON RAFY
Abstract: A mobile uses TDOA measurements of standard signals of a predefined type, such as control bursts, from neighbouring base stations for location. The system protocols may be based on TETRA and the standard data from the Broadcast network channel (BNCH.) The neighbouring base stations may be determined from the handoff list provided by the serving station. A sample of BCNH signal may be stored and correlated in order to detect the incoming signal. The system may use a digital time matched filter and may request that neighbouring stations repeatedly transmit a measurable signal on all available channel time slots.
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公开(公告)号:GB2322043B
公开(公告)日:2002-01-16
申请号:GB9702493
申请日:1997-02-07
Applicant: MOTOROLA INC
Inventor: AITKENHEAD GARY JOHN , CARMON RAFAEL , SHAHAF MARK , CHATER-LEA DAVID JOHN
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公开(公告)号:DE60334056D1
公开(公告)日:2010-10-21
申请号:DE60334056
申请日:2003-07-10
Applicant: MOTOROLA INC
Inventor: SERFATY SALOMON , SHAHAF MARK , LEVY OFER
IPC: H04W84/08
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公开(公告)号:AT480979T
公开(公告)日:2010-09-15
申请号:AT03102102
申请日:2003-07-10
Applicant: MOTOROLA INC
Inventor: SERFATY SALOMON , SHAHAF MARK , LEVY OFER
IPC: H04W84/08
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公开(公告)号:AT431051T
公开(公告)日:2009-05-15
申请号:AT03730198
申请日:2003-05-07
Applicant: MOTOROLA INC , MOTOROLA LTD
Inventor: SHAHAF MARK , SERFATY SALOMON , GLAZER NIMROD
Abstract: A wireless communication system includes at least one wireless base station 122 having a processor 208 coupled to a transmitter, encrypting network identification data 330 for transmission to a remote, mobile communication unit 112. The unit 112 includes a receiver for receiving encrypted network identification data 340, from at least one of the base stations 122 and a processor 360 to decrypt the encrypted network identification data 340 in order to determine whether or not that the serving base station is a valid one. In this manner, fraudulent wireless base stations or fraudulent networks may be detected more readily.
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公开(公告)号:AT387823T
公开(公告)日:2008-03-15
申请号:AT04102540
申请日:2004-06-04
Applicant: MOTOROLA INC
Inventor: GOLDSTEIN MARK , SERFATY SALOMON , SHAHAF MARK , ZADOK DANNY
IPC: H04W48/02
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公开(公告)号:DE60125802T2
公开(公告)日:2007-10-11
申请号:DE60125802
申请日:2001-10-15
Applicant: MOTOROLA INC
Inventor: SHAHAF MARK , SERFATY SALOMON , CARMON RAFAEL
IPC: H04W64/00
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38.
公开(公告)号:GB2412274B
公开(公告)日:2007-05-23
申请号:GB0405881
申请日:2004-03-17
Applicant: MOTOROLA INC
Inventor: SERFATY SALOMON , SHAHAF MARK
Abstract: A wireless direct mode communication unit (200) is capable of communication with a number of second communication unit(s). The wireless direct mode communication unit (200) comprises a transceiver for transmitting and/or receiving communications to/from the number of second communication unit(s). A signal processing function (208), operably coupled to or comprising a recording function (216, 234), records a communication event between the wireless direct mode communication unit (200) and a number of second communication unit(s). A method of recording a communication event is also provided.In this manner, it is possible to track a performance of, messages sent to and/or received from a direct mode communication unit. In particular, it is possible to utilise the recorded information to re-enact an incident at a later time and/or identify how a communication unit/user reacted to a given scenario in a DMO communication system.
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公开(公告)号:ES2272542T3
公开(公告)日:2007-05-01
申请号:ES01971779
申请日:2001-07-24
Applicant: MOTOROLA INC
Inventor: EMBERSON GRANT MICHAEL , SHAHAF MARK , CARMON RAFAEL , GLAZER NIMROD
Abstract: Un sistema de comunicación basado en celdas (10, 58), que incluye una pluralidad de estaciones móviles (88-92), y una pluralidad de estaciones base transmisoras receptoras (74-86) que sirven, cada una, a estaciones móviles dentro de una celda definida (60, 62), incluyendo el sistema (10, 58) por lo menos una estación base transmisora receptora (74), operativa para enviar a sus estaciones móviles servidas, un mensaje de difusión que proporciona información sobre las estaciones base transmisoras receptoras, vecinas, y por lo menos una estación móvil (88), operativa para recibir tal mensaje de difusión, y para utilizar la información incluida en el mensaje de difusión, caracterizado porque el sistema funciona de acuerdo con procedimientos estándar TETRA, y el mensaje de difusión incluye un código de color de, al menos, otra estación base transmisora receptora (76) que da servicio a estaciones móviles en una celda vecina, siendo el código de color una dirección de identificación, que determinaun patrón de mezcla específico de celda, utilizado por la otra estación base transmisora receptora (76), para mezclar las transmisiones mediante tal estación base transmisora receptora, y de uso necesario para las estaciones móviles, al efecto de conocer el patrón de mezcla para deshacer la mezcla de tales transmisiones, estando el código de color incluido, en forma codificada, en el mensaje de difusión y siendo la estación móvil (88), operativa para descodificar el mensaje de difusión recibido, y obtener el código de color.
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公开(公告)号:GB2404306A
公开(公告)日:2005-01-26
申请号:GB0317373
申请日:2003-07-25
Applicant: MOTOROLA INC
Inventor: GOLDSTEIN MARK , SERFATY SALOMON , SHAHAF MARK , ZADOK DANNY
Abstract: A wireless communication system (200) comprises at least one wireless serving communication unit (222) serving a plurality of remote units (212-216) with a communication resource (218-220), the at least one wireless serving communication unit (222) transmits a broadcast message on an outbound communication resource indicating a non- availability of one or more inbound communication resource(s), a communication unit, a broadcast message, a wireless communication unit and method of communication are also provided. Thus, by using a broadcast message of an uplink channel's 20 non-availability, the impact of a third party transmitting a jamming /interfering signal is reduced. The system may be used with FDD, TETRA protocols.
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