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公开(公告)号:AU732197B2
公开(公告)日:2001-04-12
申请号:AU5581598
申请日:1997-12-19
Applicant: ERICSSON TELEFON AB L M
Inventor: HAARTSEN JACOBUS , DENT PAUL
Abstract: Establishing a connection between a paging unit and a standby unit in a channel hopping communications system includes activating the standby unit for an activation time period out of every standby time period. During each activation time period, the standby unit monitors a selected channel for receipt of a paging message. The selected channel is selected from a plurality of channels, and, for each subsequent activation time period, the selected channel is a subsequent one of the plurality of channels as specified by a hopping sequence and an internal clock. A page train is repeatedly transmitted from the paging unit to the standby unit, until a response is received from the standby unit. Each page train includes a plurality of paging messages, each paging message being transmitted on a different one of a subset of the plurality of channels. Selection of a page train for transmission by the paging unit may be based on an estimate of the standby unit's internal clock.
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公开(公告)号:AU3790600A
公开(公告)日:2000-06-13
申请号:AU3790600
申请日:1999-11-17
Applicant: ERICSSON TELEFON AB L M
Inventor: GUSTAFSSON KJELL , DENT PAUL , ERIKSSON HAKAN
Abstract: A receiver having a digital automatic gain control (AGC) circuit is disclosed for use in a cellular communication system, including a Hierarchical Cellular System. The receiver includes a controller which switches between gain control values depending on system operational mode. In this way, the AGC can be optimized for different types of receive processing operations, e.g., traffic reception and measurement of other channels.
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公开(公告)号:DE19882299T1
公开(公告)日:2000-04-13
申请号:DE19882299
申请日:1998-04-03
Applicant: ERICSSON TELEFON AB L M
Inventor: DENT PAUL , HAARTSEN JACOBUS
IPC: H04M15/16 , H04B7/005 , H04B7/26 , H04M15/00 , H04M15/12 , H04W4/24 , H04W8/18 , H04W8/22 , H04W16/12 , H04W28/18 , H04W52/28 , H04W72/08 , H04Q7/00
Abstract: In a multi-reuse level cellular communications system, a channel is assigned for use by a mobile unit by first determining whether the mobile unit is a non-enhanced mobile unit or an enhanced mobile unit. Then a determination is made as to the type of communication service being requested. A minimum link quality required by the mobile unit can then be established based on factors that include the mobile unit type and the type of communication service being requested. A base station that has the necessary receiver detection capabilities and transceiver processing capabilities is then selected, and a channel, corresponding to a highest reuse plan, available to the base station is assigned to the call.
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公开(公告)号:AU5581598A
公开(公告)日:1998-07-17
申请号:AU5581598
申请日:1997-12-19
Applicant: ERICSSON TELEFON AB L M
Inventor: HAARTSEN JACOBUS , DENT PAUL
Abstract: Establishing a connection between a paging unit and a standby unit in a channel hopping communications system includes activating the standby unit for an activation time period out of every standby time period. During each activation time period, the standby unit monitors a selected channel for receipt of a paging message. The selected channel is selected from a plurality of channels, and, for each subsequent activation time period, the selected channel is a subsequent one of the plurality of channels as specified by a hopping sequence and an internal clock. A page train is repeatedly transmitted from the paging unit to the standby unit, until a response is received from the standby unit. Each page train includes a plurality of paging messages, each paging message being transmitted on a different one of a subset of the plurality of channels. Selection of a page train for transmission by the paging unit may be based on an estimate of the standby unit's internal clock.
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公开(公告)号:ES2438532T3
公开(公告)日:2014-01-17
申请号:ES05757933
申请日:2005-07-06
Applicant: ERICSSON TELEFON AB L M
Inventor: DENT PAUL
Abstract: Un método de generar un código binario para su uso en el ensanchamiento de una señal de información, estando el método caracterizado por: seleccionar (2 - 1) un primer código de un conjunto de códigos de ensanchamiento binarios para servir como códigode pivotamiento, teniendo el código de pivotamiento un número distinto de cero de miembros de un primer valorbinario y un número distinto de cero de miembros de un segundo valor binario; seleccionar (2 - 2) posiciones del código de pivotamiento que tienen uno del primer valor binario y del segundo valorbinario para servir como primeras posiciones de objetivo; seleccionar (2 - 3) un segundo código del conjunto de códigos de ensanchamiento binarios para servir como uncódigo de derivación; reemplazar (2 - 4) chips del segundo código correspondientes a las primeras posiciones de objetivo del código depivotamiento con un valor no binario y formar por ello un primer código de ensanchamiento ternario.
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公开(公告)号:AT484124T
公开(公告)日:2010-10-15
申请号:AT01995644
申请日:2001-11-21
Applicant: ERICSSON TELEFON AB L M
Inventor: RYDBECK NILS , SKUBIC JANEZ , DENT PAUL , GEHRMANN CHRISTIAN
Abstract: A method and apparatus for enabling anonymous communications from a first Bluetooth device to a second Bluetooth device is disclosed wherein a temporary identification number associated with the first Bluetooth device is obtained and used in transmissions from the first Bluetooth device to the second Bluetooth device. A temporary identification number provides no clear indication of the particular Bluetooth communications device transmitting messages.
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公开(公告)号:HK1136907A1
公开(公告)日:2010-07-09
申请号:HK10103475
申请日:2010-04-08
Applicant: ERICSSON TELEFON AB L M
Inventor: DENT PAUL
IPC: H03M20060101
Abstract: A fast, high resolution digital-to-analog converter (DAC) is described herein. The DAC comprises a pulse generator, decay circuit, controller, and sample circuit. The pulse generator serially outputs pulses representing digits of a digital word least significant digit first. Each pulse generates a response in the decay circuit that decays over time according to a known decay response. One exemplary decay circuit comprises an RC circuit having an exponential decay response. The controller controls the timing of the pulses output by the pulse generator such that the period of each pulse relates to a predetermined decay amount. The sample circuit samples an output of the decay circuit at a sample time after the decay circuit receives the pulse for the most significant digit. The sampled output represents the analog value corresponding to the input digital word. The digital word may have any length, radix, or format.
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公开(公告)号:AT264570T
公开(公告)日:2004-04-15
申请号:AT99972799
申请日:1999-11-17
Applicant: ERICSSON TELEFON AB L M
Inventor: GUSTAFSSON KJELL , DENT PAUL , ERIKSSON HAKAN
Abstract: A receiver having a digital automatic gain control (AGC) circuit is disclosed for use in a cellular communication system, including a Hierarchical Cellular System. The receiver includes a controller which switches between gain control values depending on system operational mode. In this way, the AGC can be optimized for different types of receive processing operations, e.g., traffic reception and measurement of other channels.
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公开(公告)号:HK1040873A1
公开(公告)日:2002-06-21
申请号:HK02102361
申请日:2002-03-27
Applicant: ERICSSON TELEFON AB L M
Inventor: PALENIUS TORGNY , DENT PAUL , WANG YI-PIN ERIC
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30.
公开(公告)号:AU5972600A
公开(公告)日:2001-01-02
申请号:AU5972600
申请日:2000-06-13
Applicant: ERICSSON TELEFON AB L M
Inventor: HAARTSEN JAAP , DENT PAUL
Abstract: A radiocommunication system is described in which DC offset and other slowly varying disturbances which that may impact a signal are suppressed. Exemplary embodiments of the present invention combine a difference circuit, e.g., a FIR filter, with a maximum likelihood sequence estimator, e.g., a Viterbi detector, to implement suppression techniques on binary signals.
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