公开(公告)号：DE60334442D1

公开(公告)日：2010-11-18

申请号：DE60334442

申请日：2003-01-07

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R ,  BUTLER BRIAN K ,  WHEATLEY CHARLES E

IPC: H04L12/26 ,  H04B7/14 ,  H04B7/15 ,  H04W24/00

公开(公告)号：AT460822T

公开(公告)日：2010-03-15

申请号：AT04752206

申请日：2004-05-12

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04W84/00 ,  H04B10/12 ,  H04B17/40 ,  H04W88/08

Abstract: Apparatus and methods are disclosed for determining a tolerable propagation delay between a repeater and a base station in a communication system. In one embodiment, a tolerable length of fiber optic cable between a repeater and a base station is determined. More particularly, a desired search window size in time is determined. A maximum fiber optic cable delay value is determined based on the desired search window size. Also, a ratio value of fiber optic cable delay value to fiber optic cable length is then determined. The tolerable length of the fiber optic cable is then determined based on the maximum fiber optic cable delay value and the ratio value.

公开(公告)号：BR0213485A

公开(公告)日：2005-01-04

申请号：BR0213485

申请日：2002-10-25

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R ,  BUTLER BRIAN K

IPC: H04B1/00 ,  H04B7/15 ,  H04B7/26

公开(公告)号：AT264577T

公开(公告)日：2004-04-15

申请号：AT98949598

申请日：1998-09-29

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/10 ,  H04B7/24 ,  H04B7/26

Abstract: The present invention is a novel and improved method and apparatus for transmitting and receiving code division multiple access (CDMA) signals. In a described embodiment of the invention, the radio frequency (RF) signals are received through a first polarization RF unit and a second polarization RF unit generating right slant samples and left slant samples. The right slant samples and the left slant samples are each searched and multipath processed independently and the resulting sets of soft decision data combined and decoded. In a preferred embodiment of the invention, right slant and left slant instances of the signal are generated and transmitted to increase the likelihood of differently polarized instances of the signal being available at the receive system.

公开(公告)号：AU2003207476A1

公开(公告)日：2003-07-30

申请号：AU2003207476

申请日：2003-01-07

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  WHEATLEY CHARLES E III ,  BAKER KENNETH R

IPC: H04B7/14 ,  H04B7/15 ,  H04L12/26 ,  H04W24/00

Abstract: An apparatus and method for identifying remote communications transmitted via a repeater from remote communications not transmitted via the repeater. The method comprises the steps of receiving a plurality of signal transmissions originating from a plurality of remote stations, wherein each of the signal transmissions is associated with a call originating from one of the plurality of remote stations; processing the plurality of received signal transmissions to identify received transmissions that include a discriminant applied by a repeater; and designating each of the plurality of received signal transmissions as being transmitted via the repeater if the received signal transmission includes the discriminant.

公开(公告)号：CA2472602A1

公开(公告)日：2003-07-24

申请号：CA2472602

申请日：2003-01-07

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R ,  BUTLER BRIAN K ,  WHEATLEY CHARLES E III

IPC: H04B7/14 ,  H04B7/15 ,  H04L12/26 ,  H04W24/00

Abstract: An apparatus and method for identifying remote communications transmitted via a repeater from remote communications not transmitted via the repeater. The method comprises the steps of receiving a plurality of signal transmissions originating from a plurality of remote stations, wherein each of the signal transmissions is associated with a call originating from one of the plurality of remote stations; processing the plurality of received signal transmissions to identify received transmissions that include a discriminant applied by a repeater; and designating each of the plurality of received signal transmissions as being transmitted via the repeater if the received signal transmission includes the discriminant.

公开(公告)号：CA2464645A1

公开(公告)日：2003-05-01

申请号：CA2464645

申请日：2002-10-25

Applicant: QUALCOMM INC

Inventor： BUTLER BRIAN K ,  BAKER KENNETH R

IPC: H04B1/00 ,  H04B7/15 ,  H04B7/26 ,  H04B1/38 ,  H04Q7/20

Abstract: An apparatus and method for identifying remote communications transmitted vi a a repeater from remote communications not transmitted via the repeater. The method comprises the steps of receiving a signal transmission 124A from a remote station 112, determining if the signal transmission 124A includes a discriminant applied to the signal transmitted from the remote station 112 a nd designating the signal transmission 124A as being transmitted via the repeat er 120 if the signal transmission 124A includes the discriminant.

公开(公告)号：NO20002671A

公开(公告)日：2000-07-18

申请号：NO20002671

申请日：2000-05-25

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/26 ,  H04W16/26 ,  H04W36/14 ,  H04Q7/38 ,  H04Q7/36

CPC classification number: H04W36/30 ,  H04B7/2606 ,  H04W16/26

公开(公告)号：NO20002671D0

公开(公告)日：2000-05-25

申请号：NO20002671

申请日：2000-05-25

Applicant: QUALCOMM INC

Inventor： BAKER KENNETH R

IPC: H04B7/26 ,  H04W16/26 ,  H04W36/14 ,  H04Q

Abstract: A method and apparatus for providing handoff between two communication systems. The systems can be CDMA systems operating at different frequencies or systems employing different technologies. In the first system, a base station (4) is configured to provide communications to two or more sectors, with at least one sector assigned to a corresponding repeater (8) which provides coverage overlapping that of both systems. As the remote station (6) moves into the coverage area of the repeater (8), the pilot signal of the repeater (8) is identified, measured and sent to the first system. If the measured pilot signal is above a predetermined add threshold, the repeater (8) is added to the active set of the remote station. The first system can handoff the remote station (6) to the second system: (1) upon initiation of a soft handoff by the base station of the first system; (2) if the pilot signal strength of the repeater (8), as measured by the remote station (6), exceeds a predetermined handoff threshold; (3) if the base station (4) of the first system is dropped from the active set of the remote station (6); (4) if the repeater of the first system is dropped from the active set of the remote station (6); or (5) if the base station (4) and repeater (8) of the first system are dropped from the active set of the remote station (6).

公开(公告)号：CA2710139C

公开(公告)日：2015-12-15

申请号：CA2710139

申请日：2008-12-18

Applicant: QUALCOMM INC

Inventor： DEAN RICHARD F ,  BAKER KENNETH R

IPC: G01S19/06 ,  G01S5/02 ,  G01S19/12 ,  G01S19/38 ,  G01S19/46

Abstract: Systems and methods disclosed herein generate pseudo pilot signals including PN phase offsets corresponding to a plurality of pseudo base stations. The pseudo base stations are (1) a plurality of non-physical base stations, and/or (2) physical base stations outside the reception range of the mobile device. The pseudo pilot signals are combined with communication signals from a physical base station to form a series of composite signals. The composite signals are transmitted for reception by a wireless mobile device and are used to determine the location of the mobile device.