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。

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

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.

公开(公告)号：DE60216697D1

公开(公告)日：2007-01-25

申请号：DE60216697

申请日：2002-10-15

Applicant: MOTOROLA INC

Inventor： SHAHAF MARK ,  CARMON RAFAEL ,  SERFATY SALOMON

IPC: H04B17/00 ,  H04W24/00

公开(公告)号：GB2381159B

公开(公告)日：2004-02-18

申请号：GB0124888

申请日：2001-10-17

Applicant: MOTOROLA INC

Inventor： SHAHAF MARK ,  CARMON RAFAEL ,  SERFATY SALOMON

IPC: H04B17/00 ,  H04W24/00 ,  H04M3/26 ,  H04Q7/34

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.

公开(公告)号：GB2322043A

公开(公告)日：1998-08-12

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

IPC: H04B7/26 ,  H04Q7/38

Abstract: A TDMA communications system has a main carrier and at least one secondary carrier, each carrier having timeslots which may be used as traffic channels. The first timeslot of the main carrier is reserved for the main control channel whilst the other timeslots are, when traffic loading allows, reserved for synchronisation words (SYNC) and system information (SYSINFO), thereby enabling, for example, mobile phones to quickly synchronise with base stations. In an attempt to keep the main carrier timeslots free, channels are allocated to the carriers according to a predefined sequence, whereby an attempt is first made to put traffic onto the secondary carriers, the main carrier only being used if this attempt fails. Also mentions "freeing-up" the main carrier's traffic carrying timeslots, when timeslots become available on the secondary carriers, by reallocating them to the secondary carriers.

公开(公告)号：DE19819819B4

公开(公告)日：2012-02-02

申请号：DE19819819

申请日：1998-05-04

Applicant: MOTOROLA INC

Inventor： BRIDLE MATTHEW ,  WRAY ANTONY JOHN ,  CARMON RAFAEL

IPC: H04B7/005 ,  H04B7/204 ,  H04B7/24 ,  H04W40/24 ,  H04W72/02 ,  H04W72/08 ,  H04W84/08 ,  H04W92/18

Abstract: Zweiwege-Funkkommunikationssystem (20) mit einer Vielzahl von Funkeinheiten (22, 24, 26, 28, 30, 32), die über wenigstens eine Kommunikationsressource (34, 36) kommunizieren, wobei eine erste Funkeinheit (50) der Vielzahl von Funkeinheiten umfaßt: einen Empfänger (44, 48) zum Überwachen von wenigstens einer verfügbaren Kommunikationsressource (34, 36); und einen Prozessor (46) zum Bereitstellen einer Prioritätsliste (54) der wenigstens einen verfügbaren Kommunikationsressource (34, 36) und zum Auswahlen einer verfügbaren Kommunikationsressource mit der höchsten Priorität, wenn die erste Funkeinheit (50) mit einer zweiten Funkeinheit (52) der Vielzahl von Funkeinheiten in Kommunikation treten möchte, wobei die erste und die zweite Funkeinheit jeweils weiterhin einen Sender (47) umfassen, so dass die erste Funkeinheit (50) die Prioritätsliste (54) an die zweite Funkeinheit (52) sendet und die zweite Funkeinheit die Prioritätsliste (54) empfängt, wobei die zweite Funkeinheit (52) eine bevorzugte Kommunikationsressource für die Kommunikation zwischen der ersten Funkeinheit (50) und der zweiten Funkeinheit (52) bestimmt und...

公开(公告)号：AT350870T

公开(公告)日：2007-01-15

申请号：AT01978412

申请日：2001-10-15

Applicant: MOTOROLA INC

Inventor： SHAHAF MARK ,  SERFATY SALOMON ,  CARMON RAFAEL

IPC: H04W64/00 ,  H04Q7/38

公开(公告)号：GB2381159A

公开(公告)日：2003-04-23

申请号：GB0124888

申请日：2001-10-17

Applicant: MOTOROLA INC

Inventor： SHAHAF MARK ,  CARMON RAFAEL ,  SERFATY SALOMON

IPC: H04B17/00 ,  H04W24/00 ,  H04M3/26 ,  H04Q7/34

Abstract: A base transceiver 3 used for radio communication with one or more distant transceiver units 5 (mobile stations) is operable to apply a downlink interference detection mode wherein (i) the base transceiver periodically generates and sends a test signal to the one or more distant transceiver units; (ii) the base transceiver senses whether or not a response signal is sent, possibly within a predetermined time interval, by a distant transceiver in response to receipt of the test signal; and (iii) if no response signal is detected the base transceiver generates an interference detection signal. The base transceiver may further issue an auxiliary control signal to a receiver to initiate identification of the interference level on the downlink channel and possibly distinguish between the following interference conditions: (i) the downlink transmitter has a fault causing noise, (ii) the downlink transmission is subject to interference or (iii) no distant transceiver has received the transmitted test signal. Furthermore the base transceiver may send an interference detection signal to a system controller 7 which may in response change one of its operating parameters to avoid the interference. A method of operation of the base transceiver and a transceiver for use as the distant transceiver are also described.