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    3.
    发明专利
    未知

    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

    IPC: H04W12/08 ,  H04L12/56 ,  H04W12/00 ,  H04W48/02

    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.

    SISTEMA DE COMUNICACION, UNIDAD DE RADIO Y METODO PARA LLEVAR A CABO UN TRASPASO.
    4.
    发明专利
    SISTEMA DE COMUNICACION, UNIDAD DE RADIO Y METODO PARA LLEVAR A CABO UN TRASPASO. 未知

    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

    IPC: H04W36/08 ,  H04W48/08

    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.

    WIRELESS COMMUNICATION SYSTEM, APPARATUS AND METHOD
    6.
    发明专利
    WIRELESS COMMUNICATION SYSTEM, APPARATUS AND METHOD 未知

    公开(公告)号：AU2003240784A1

    公开(公告)日：2003-12-19

    申请号：AU2003240784

    申请日：2003-05-07

    Applicant: MOTOROLA INC

    Inventor： SERFATY SALOMON ,  GLAZER NIMROD ,  SHAHAF MARK

    IPC: H04L12/56 ,  H04W12/00 ,  H04W12/08 ,  H04W48/02 ,  H04Q7/38

    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.

    Generating handover cell parameter information to avoid need for scanning
    7.
    发明专利
    Generating handover cell parameter information to avoid need for scanning 未知

    公开(公告)号：GB2369957A

    公开(公告)日：2002-06-12

    申请号：GB0018371

    申请日：2000-07-27

    Applicant: MOTOROLA INC

    Inventor： EMBERSON GRANT MICHAEL ,  SHAHAF MARK ,  CARMON RAFAEL ,  GLAZER NIMROD

    IPC: H04W36/08 ,  H04W48/08 ,  H04Q7/38

    Abstract: A mobile station and its serving base transceiver station both have means to generate cell parameter information of a neighbouring cell to facilitate communication handover to the neighbouring cell, without the mobile station accessing or receiving information from the neighbouring cell providing said neighbouring cell parameter information. This avoids the need for background scanning of candidate neighbour cells by the mobile to determine the required synchronisation offset and operating parameters, such as the colour code (determines scrambling and frequency re-use pattern), maximum mobile transmit power or minimum receiver access level. Preferably in a shared Terrestrial Trunked Radio (TETRA) system only the colour code is required and the mobile and base station may use a linear feedback shift register (LFSR) to generate a pseudo-random sequence used to set the appropriate colour code. The generation may involve use of the neighbour cell id and location area (LA), periodically transmitted to the mobile by the serving base station. Facilitates seamless handover and reduces dropped calls or breaks in communications due to handovers.

    Handover criteria for mobile transceivers
    9.
    发明专利
    Handover criteria for mobile transceivers 未知

    公开(公告)号：GB2377130A

    公开(公告)日：2002-12-31

    申请号：GB0116004

    申请日：2001-06-29

    Applicant: MOTOROLA INC

    Inventor： SHAHAF MARK ,  SERFATY SALOMON ,  GLAZER NIMROD

    IPC: H04W36/32 ,  H04Q7/38

    Abstract: A mobile radio communications transceiver M1, M2, M3, which is operable in a communications system to communicate with one of a plurality of base transceivers B1, B2, B3 etc. in a cellular network, the mobile transceiver operable to receive signals from candidate base transceivers within its range of possible communication and to extract and compare information from the received signals to select one of the base transceivers with which the mobile transceivers is to communicate with, if necessary by handover from the currently selected base transceiver, wherein the mobile transceiver is operable so that the information extracted and compared includes information describing estimates of the distances from the mobile transceiver to the candidate base transceivers. Furthermore the mobile transceiver may use information about both the distance to and quality of service of (for example signal strength) the base transceivers to compile and maintain a preference table of candidate base transceivers. Furthermore the mobile transceiver may calculate a rating value based on signal strength and distance measurements of each of the base transceivers to determine their ranking in the preference table.

    COMMUNICATION SYSTEM, RADIO UNIT AND METHOD OF PERFORMING A HANDOVER
    10.
    发明申请
    COMMUNICATION SYSTEM, RADIO UNIT AND METHOD OF PERFORMING A HANDOVER 审中-公开
    通信系统，无线电单元和执行切换的方法

    公开(公告)号：WO0211485A3

    公开(公告)日：2002-04-18

    申请号：PCT/EP0108573

    申请日：2001-07-24

    Applicant: MOTOROLA INC ,  EMBERSON GRANT MICHAEL ,  SHAHAF MARK ,  CARMON RAFAEL ,  GLAZER NIMROD

    Inventor： EMBERSON GRANT MICHAEL ,  SHAHAF MARK ,  CARMON RAFAEL ,  GLAZER NIMROD

    IPC: H04W36/08 ,  H04W48/08 ,  H04Q7/38

    CPC classification number: H04W36/0055 ,  Y02D70/00 ,  Y02D70/1222

    Abstract: A cell-based communication system (10,58) having at least two cells (60,62) facilitating a communication link between at least one of a plurality of mobile stations (88-92) and at least one of a plurality of base transceiver stations (74-86) is characterised by at least one mobile station (88) and/or its respective serving base transceiver station (74) having means (94, 96, 108) for providing cell parameter information of a neighbour cell (62) which information is known to both the mobile station and its serving base transceiver station so as to facilitate handover of a communication between the respective serving base transceiver station (74) and a second base transceiver station (76) serving the neighbouring cell (62) without the mobile station accessing or receiving information from the neighbouring cell providing said neighbouring cell parameter information. A radio transceiver unit, base station transceiver and method for use in the system are also described.

    Abstract translation: 一种基于小区的通信系统（10,58），具有至少两个小区（60,62），用于促进多个移动台（88-92）中的至少一个与多个基站收发信机（88-92）中的至少一个之间的通信链路 站（74-86）的特征在于具有用于提供相邻小区（62）的小区参数信息的装置（94,96,108）的至少一个移动台（88）和/或其相应的服务基站收发台（74） 该信息对于移动台及其服务基站收发台都是已知的，以便促进相应的服务基站收发台（74）和服务于相邻小区（62）的第二基站收发台（76）之间的通信的切换，而无需 移动台访问或接收来自提供所述相邻小区参数信息的相邻小区的信息。 还描述了用于该系统的无线电收发器单元，基站收发器和方法。

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