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公开(公告)号：CA2404297A1
公开(公告)日：2001-10-11
申请号：CA2404297
申请日：2001-03-30
Applicant: QUALCOMM INC
Inventor： BAYLEY GWAIN , AMERGA MESSAY , HUGHES ROBBIN
Abstract: A method and apparatus for improving searching in a remote unit of a slotted mode, wireless, communication system. In a slotted mode communication system, the remote unit enters an "active state" during its assigned slot. While in the active state, a controller in the remote unit passes selected sets of search parameters to a search engine. The order that the searches are performed is based on the measured signal strength and the age of the measurement. The search engine performs searches using the selected sets of search parameters. Searching continues as long as the remote unit is in the active state. When the remote unit enters the inactive state, searching ceases. While in the inactive state, the controller evaluates the results of the searches performed during the previous active state. During the next active state, the next sequence of searching is performed based on measured signal strength and the measurement age corresponding to the measurements made during the previous active state.
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公开(公告)号：AU2609201A
公开(公告)日：2001-07-16
申请号：AU2609201
申请日：2000-12-29
Applicant: QUALCOMM INC
Inventor： LUDWIN ALBERT SCOTT , SHI GUANMING , HIGGINS RICHARD , BAYLEY GWAIN
Abstract: The virtual device architecture provides physical and logical device drivers for interfacing software programs executing on a microprocessor of the mobile telephone of a wireless communication system with any of a wide variety of hardware devices connectable within the mobile telephone. The logical device drivers convert commands received from the software applications to commands appropriate for use by selected hardware devices. The physical device drivers receive the converted commands from the logical device drivers and in response to the received commands directly control the selected hardware devices. In one example described herein, the logical device drivers provide translation of core commands necessary to control the selected hardware devices and extended commands for enhanced control of the hardware devices. The logical device drivers operate to convert the extended commands into core commands prior to forwarding the commands to the physical device drivers. By providing logical and physical drivers for use with peripheral devices, the need to provide different versions of software executing on the microprocessor to accommodate different types of peripheral devices is substantially eliminated resulting in a considerable reduction in time and cost associated with developing, maintaining and upgrading software. By providing logical device drivers capable of accommodating both core commands and extended commands, a rich set of peripheral commands can be accommodated thereby further reducing or eliminating the need to provide different versions of software executing on the processor, while nevertheless exploiting the full capabilities of a wide variety of peripheral devices, including state of the art hardware devices such as bit-mapped displays, pointer devices and the like. Method and apparatus embodiments are described.
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公开(公告)号：BR9908818A
公开(公告)日：2000-12-12
申请号：BR9908818
申请日：1999-03-16
Applicant: QUALCOMM INC
Inventor： BAYLEY GWAIN
Abstract: A method and circuit for adaptively determining a pilot signal reacquisition time. A searcher subsystem measures a phase of the pilot signal. A control processor measures a magnitude of a shift in the pilot signal phase, compares the measured magnitude to a shift threshold, and decreases the reacquisition time if the measured magnitude is not greater than the shift threshold. The control processor also may compare the reacquisition time to a minimum reacquisition time, and decrease the reacquisition time only if the reacquisition time is greater than the minimum reacquisition time. Additionally, the control processor may increase the reacquisition time to a maximum reacquisition time if the measured magnitude is greater than said shift threshold.
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84.发明专利
公开(公告)号：AU706824B2
公开(公告)日：1999-06-24
申请号：AU4371196
申请日：1995-11-29
Applicant: QUALCOMM INC
Inventor： TIEDEMANN EDWARD G JR , JOU YU-CHEUN , WEAVER LINDSAY A JR , BAYLEY GWAIN
IPC: H04L1/00 , H04B3/46 , H04B7/26 , H04B17/00 , H04L1/20 , H04L1/24 , H04L27/00 , H04L69/40 , H04L1/12
Abstract: The invention provides a system and method for testing signal transmission quality within a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.
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公开(公告)号：ZA987927B
公开(公告)日：1999-03-01
申请号：ZA987927
申请日：1998-08-31
Applicant: QUALCOMM INC
Inventor： BUTLER BRIAN K , BAYLEY GWAIN , HANSQUINE DAVID , TIEDEMANN EDWARD G JR
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Patent Agency Ranking
公开(公告)号：BR9607948A
公开(公告)日：1998-07-14
申请号：BR9607948
申请日：1996-03-19
Applicant: QUALCOMM INC
Inventor： BAYLEY GWAIN , WEAVER LINDSAY A JR , TIEDEMANN EDWARD G JR , GILHOUSEN KLEIN S
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公开(公告)号：FI972208A
公开(公告)日：1997-07-28
申请号：FI972208
申请日：1997-05-23
Applicant: QUALCOMM INC
Inventor： TIEDEMANN JR EDWARD G , WEAVER JR LINDSAY A , JOU YU-CHEUN , BAYLEY GWAIN
IPC: H04L1/00 , H04B3/46 , H04B7/26 , H04B17/00 , H04L1/20 , H04L1/24 , H04L27/00 , H04L69/40 , H04B
Abstract: The invention provides a system and method for testing signal transmission quality within a digital communication system and may be incorporated within a digital cellular communication system in which information is exchanged over spread spectrum communication channels. A test sequence of digital data transmitted over the communication channel is received at a receiving station, within which is also generated a replica of the test sequence of digital data. The accuracy of transmission over the communication channel is then determined by comparing the replica of the test sequence of digital data to the test sequence of data received over the communication channel. The invention allows the test sequence of digital data to be transmitted at one of a set of known data rates, with the received station being disposed to identify the data rate associated with each test sequence of digital data. In order to simulate the transmission of, for example, voice data, the system may be configured such that each test sequence of digital data is generated in accordance with a pseudorandom process.
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公开(公告)号：AU1159597A
公开(公告)日：1997-06-19
申请号：AU1159597
申请日：1996-11-13
Applicant: QUALCOMM INC
Inventor： JOHNSON DERALD O JR , WILLIAMSON PAUL T , IV JAMES A HUTCHINSON , BAYLEY GWAIN
IPC: H04B1/7075 , H04B7/216 , H04B7/26 , H04B1/707
Abstract: A novel and improved method and apparatus for signal acquisition in a wireless telecommunication system having large transmission delay uncertainty is described. A terminal first acquires the forward link signal from a hub and extracts timing information from that forward link signal. Using the timing information the terminal estimates the time at which a next search window takes place during an access slot, and the time and pseudorandom code state necessary to transmit an access probe so as to arrive at during the search window assuming the terminal is located a maximum distance from the hub. The terminal proceeds to transmit additional access probes at times occurring one access slot period plus a delta time interval after the previous transmission. The delta time interval has a duration less than that of a search window associated with each access slot. Each access probe is processed with various transmission codes the states of which are incremented by an access slot period for each access probe transmitted.
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公开(公告)号：AR000426A1
公开(公告)日：1997-06-18
申请号：AR33558496
申请日：1996-02-28
Applicant: QUALCOMM INC
Inventor： WEAVER LINDSAY A JR , BAYLEY GWAIN , TIEDEMANN EDWARD G JR
Abstract: La invención se refiere a un método para proporcionar un medio confiable para efectuar transferencia desde un sistema de comunicación celular de accesomúltiple por división de código (CADM) que utiliza una senal piloto, y a un sistema de comunicación celular para llevar a la práctica dicho método. Lainvención incorpora, una simple caja piloto de combinación de circuitos (350) a un conjunto de estaciones base limítrofes. Las estaciones base limítrofes(C2 A - C2 R) son estaciones base que operan solamente en la técnica de acceso alternativa y que tienen áreas de abarcamiento que son contiguas con las áreasde abarcamiento de las estaciones base de operación CADM. La unidad móvil verifica la senal piloto desde las estaciones baselimítrofes (C2 A - C2 R) dela misma manera que verifica las senales piloto desde las estaciones base de operación CADM (C1 A - C1 S). Cuando la unidad móvil detecta la senal pilotocorrespondiente a la estación base limítrofe (C2 A - C2 R), ésta notifica a un controlador de sistema (202) de acuerdo con la operación corriente. Elcontrolador de sistema (202) está en el conocimiento que la senal piloto corresponde a una estación base limítrofe (C2 A - C2 R) y de esta manera poneen acciónun proceso de transferencia de larga duración en respuesta del mismo para el sistema de técnica de acceso alternativa.
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公开(公告)号：AU6721796A
公开(公告)日：1997-03-12
申请号：AU6721796
申请日：1996-08-07
Applicant: QUALCOMM INC
Inventor： WEAVER LINDSAY A JR , BAYLEY GWAIN , TIEDEMANN EDWARD G JR , GILHOUSEN KLEIN S
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