公开(公告)号：CA2347239C

公开(公告)日：2010-04-27

申请号：CA2347239

申请日：1999-10-12

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  ZHANG HAITAO ,  TIEDEMANN EDWARD G JR ,  ZOU QIUZHEN ,  SIH GILBERT C ,  AGRAWAL AVNEESH

IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher (206) is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to process more complete page messages, or other information channels. In one embodiment of the invention, the searcher (206) includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

公开(公告)号：AT440295T

公开(公告)日：2009-09-15

申请号：AT99946742

申请日：1999-09-03

Applicant: QUALCOMM INC

Inventor： SIH GILBERT ,  ZOU QIUZHEN ,  KANG INYUP ,  FEVRIER IAN

IPC: G01S1/00 ,  G01S19/23 ,  G01S19/24 ,  G01S19/25 ,  G01S19/29 ,  G01S19/36 ,  G01S19/48

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment comprises a method for performing position location using a set of signals transmitted from a set of satellites including the steps of storing coarse search data, performing a coarse search on said coarse search data for each satellite from said set of satellites, receiving fine search data, performing a set of fine searches on said fine search data, each fine search being performed on a different time segment of said fine search data, and reporting results.

公开(公告)号：DE69934706D1

公开(公告)日：2007-02-15

申请号：DE69934706

申请日：1999-10-12

Applicant: QUALCOMM INC

Inventor： BUTLER K ,  ZHANG HAITAO ,  TIEDEMANN G ,  ZOU QIUZHEN ,  SIH C ,  AGRAWAL AVNEESH

IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

公开(公告)号：CA2343237C

公开(公告)日：2006-07-04

申请号：CA2343237

申请日：1999-09-02

Applicant: QUALCOMM INC

Inventor： EDMONSTON BRIAN S ,  SIH GILBERT C ,  ZOU QIUZHEN

IPC: G01S1/00 ,  G01S5/00 ,  G01S19/09 ,  G01S19/23 ,  G01S19/24 ,  G01S19/25 ,  G01S19/29 ,  G01S19/30 ,  G01S19/46 ,  H04Q7/34 ,  H04Q7/36 ,  H04Q7/38

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. In one embodiment the invention comprises a method for performing position location in a subscriber unit in a CDMA wireless communications system having a base station including the step of receiving a position location request during a communication, entering a position location mode, transmitting frames to the base station while performing a position location procedure, and returning to communications mode when said position location procedure has been completed .

公开(公告)号：DE69919729D1

公开(公告)日：2004-09-30

申请号：DE69919729

申请日：1999-09-03

Applicant: QUALCOMM INC

Inventor： KANG INYUP ,  SIH C ,  ZOU QIUZHEN

IPC: G01S5/00 ,  G01S19/23 ,  G01S19/25 ,  G01S19/29 ,  G01S19/30 ,  H04Q7/34 ,  G01S5/14

Abstract: The present invention is a novel and improved method and apparatus for performing position location in wireless communications system. One embodiment of the invention comprises a method for performing position location comprising the steps of receiving signal samples, generating a coarse acquisition sequence, rotating the coarse acquisition sequence yielding a rotated coarse acquisition sequence, and applying the rotated coarse acquisition sequence to the signal samples at a set of time offsets yielding correlated output data.

公开(公告)号：CA2472522A1

公开(公告)日：2003-07-17

申请号：CA2472522

申请日：2003-01-03

Applicant: QUALCOMM INC

Inventor： POON WANG PAUL ,  ZOU QIUZHEN

IPC: G01S1/00 ,  G01S19/25 ,  G01S19/30 ,  G01S19/34 ,  G01S19/37 ,  H04B1/7075 ,  H04B1/708 ,  H04Q7/38 ,  H04B1/707

Abstract: Searcher hardware is multiplexed to perform simultaneous searches in either an IS-95 CDMA mode or a GPS mode. In the IS-95 mode, the search hardware is tim e- multiplexed into a number of searcher time slices, each of which can generat e a PN sequence to despread a data sequence. In the GPS mode, the search hardware is configured as a number of distinct GPS channels, each of which c an generate a Gold code sequence for tracking a GPS signal from a particular GP S satellite. This configuration allows the searcher to perform multiple GPS signal searches simultaneously. Signal searching in both IS-95 and GPS modes is performed at significantly higher speeds compared to conventional searche r hardware. Moreover, the search hardware can be dynamically configured to operate in either the IS-95 or the GPS mode, eliminating the need for dedicated circuitry for each mode of operation.

公开(公告)号：CA2459941A1

公开(公告)日：2003-03-20

申请号：CA2459941

申请日：2002-09-06

Applicant: QUALCOMM INC

Inventor： WILEY GEORGE ALAN ,  STEELE BRIAN ,  ZOU QIUZHEN

IPC: G06F1/00 ,  A63F13/06 ,  G06F20060101 ,  G06F3/00 ,  G06F13/38 ,  G06K7/00 ,  H04J3/06 ,  H04L12/28 ,  H04L12/64 ,  H04L25/45 ,  H04L29/06 ,  H04M1/725 ,  H04N5/44 ,  H04N7/26 ,  H04Q7/22

Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital contr ol and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being couple d to the client through the communications path. The interface provides a cost - effective, low power, bi-directional, high-speed data transfer mechanism ove r a short-range "serial" type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially usef ul in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.

公开(公告)号：HK1046598A1

公开(公告)日：2003-01-17

申请号：HK02108115

申请日：2002-11-08

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  ZHANG HAITAO ,  TIEDEMANN EDWARD G JR ,  ZOU QIUZHEN ,  SIH GILBERT C ,  AGRAWAL AVNEESH

IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02 ,  H04B ,  H04Q

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

公开(公告)号：BR9914542A

公开(公告)日：2003-01-07

申请号：BR9914542

申请日：1999-10-12

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  ZHANG HAITAO ,  TIEDEMANN EDWARD G JR ,  ZOU QIUZHEN ,  SIH GILBERT C ,  AGRAWAL AVNEESH

IPC: H04W24/02 ,  H04B1/7075 ,  H04B1/7077 ,  H04B1/7115 ,  H04W52/02 ,  H04B1/707 ,  H04Q7/32

Abstract: A novel and improved method for performing paging is described. In one embodiment of the invention a searcher is used to detect spread spectrum signals. Samples received RF signals are stored in a sample buffer. During standby mode, the samples are gathered during paging slots assigned to the mobile. A set of searches are performed on the samples, and if pilot signals are detected additional demodulation is performed to detect paging messages. The resulting set of demodulation data may be combined to increase detection. After a page message has been detected, additional demodulation resources may be activated to processes more complete page messages, or other information channels. In one embodiment of the invention, the searcher includes a demodulator to perform quick page detection without the use of finger elements to reduce idle mode power consumption.

公开(公告)号：CA2725878A1

公开(公告)日：2002-06-20

申请号：CA2725878

申请日：2001-12-14

Applicant: QUALCOMM INC

Inventor： ZOU QIUZHEN ,  WILEY GEORGE A ,  STEELE BRIAN

IPC: H04L29/06 ,  H04N7/08 ,  H04J3/06 ,  H04L20060101 ,  H04L12/56 ,  H04L12/64 ,  H04L29/00 ,  H04L29/08 ,  H04L29/10 ,  H04M1/725 ,  H04N7/081 ,  H04N21/643 ,  H04W80/00

Abstract: A data Interface for transferring digital data between a host and a client over a communication path using packet structures linked together to form a communication protocol for communicating a pre-selected set of digital control and presentation data. The signal protocol is used by link controllers configured to generate, transmit, and receive packets forming the communications protocol, and to form digital data into one or more types of data packets, with at least one residing in the host device and being coupled to the client through the communications path. The interface provides a cost-effective, low power, bi-directional, high-speed data transfer mechanism over a short-range "serial" type data link, which lends itself to implementation with miniature connectors and thin flexible cables which are especially useful in connecting display elements such as wearable micro-displays to portable computers and wireless communication devices.