公开(公告)号：ES2360648T3

公开(公告)日：2011-06-07

申请号：ES06718490

申请日：2006-01-13

Applicant: QUALCOMM INC

Inventor： SINNARAJAH RAGULAN ,  PATWARDHAN RAVINDRA ,  CHAN LESLIE ,  TIEDEMANN EDWARD ,  HAMDY WALID ,  ACHOUR BAAZIZ ,  PRICE PHIL ,  SHAH BHARAT ,  NASIELSKI JOHN

IPC: H04W8/22 ,  H04W88/02

Abstract: Una estación móvil para comunicaciones inalámbricas, comprendiendo la estación móvil: un procesador de control configurado para generar un mensaje para su transmisión sobre un canal de señalización inverso, incluyendo el mensaje un campo de Marcación de la Clase de Estación conforme con la normativa del CDMA 2000 que tiene una pluralidad de bits, indicando una porción del campo de Marcación de la Clase de Estación que la estación móvil está identificada de forma única por un Identificador de Equipo de Estación Móvil.

公开(公告)号：AT486475T

公开(公告)日：2010-11-15

申请号：AT04019847

申请日：1998-02-13

Applicant: QUALCOMM INC

Inventor： HAMDY WALID

IPC: H04W36/08 ,  H04W36/18 ,  H04W36/30 ,  H04W36/38 ,  H04W48/14

Abstract: A method and apparatus for merging pilot neighbor lists to account for false indications of signal strength due to topography in a code division multiple access (CDMA) communication system. The merged list is arrived at by first measuring pilot signal strengths and phase delays received by the mobile station and reporting this information to the mobile telephone switching office (60). A neighbor list union is generated (60) as the union of all predetermined neighbor lists corresponding to said received pilot signals. Each member, or base station, in the neighbor list union is operated on by a weighting function (75) which takes into account how often each member is included in each received pilot's predetermined neighbor list and the signal strength of such pilots. The relative weights are then sorted (95) and the highest ranking members form a Neighbor List Update Message (105), up to a predetermined number of members.

公开(公告)号：DE69932175T2

公开(公告)日：2007-05-31

申请号：DE69932175

申请日：1999-10-26

Applicant: QUALCOMM INC

Inventor： ANTONIO P ,  HAMDY WALID

IPC: H04B7/005 ,  H04B7/26 ,  H04W28/26 ,  H04W52/34

Abstract: A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to an overload threshold value. If the variance exceeds the overload threshold value, for some period of time, the system is declared to be operating at a potentially unstable point. In this state, future connection originations are denied.

公开(公告)号：CA2203256C

公开(公告)日：2006-02-07

申请号：CA2203256

申请日：1995-11-22

Applicant: QUALCOMM INC

Inventor： HAMDY WALID ,  PADOVANI ROBERTO ,  BAR-DAVID GIL

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30

Abstract: An improved method and system for performing a pilot signal searching operation in anticipation of handoff in mobile station (18) communication between base stations (12, 14). The mobile station (18) maintains a list of Active Set pilot signals transmitted from base stations with which the mobile station is to communicate through, and a list of Neighbor Set pilot signals (N) from base stations within a predetermined proximity of the mobile station (18). The searching operation contemplates comparing pilot signal strength measurements corresponding to each base station entry within the Neighbor Set (N) to a first predetermined level. One or more entries from the Neighbor Set (N) having a base station signal strength measurement greater than the first predetermined level may be placed in the Pre-Candidate Set (PC). Tine strength of the pilot signals associated with entries in the Pre-Candidate Set (PC) are then further evaluated to determine eligibility within the Candidate Set (C), from which are selected the entrie s comprising the Active Set.

公开(公告)号：DE60013108T2

公开(公告)日：2005-08-18

申请号：DE60013108

申请日：2000-04-11

Applicant: QUALCOMM INC

Inventor： HAMDY WALID ,  MATHE LENNART ,  SUTTON TODD

IPC: H04B1/7097 ,  H04B1/707 ,  H04B1/71 ,  H04Q7/34

Abstract: A method for detecting in-band interfering signals, in a wireless communication base station, the method comprising: performing downconversion and bandpass-filtering of a received analog signal to produce a downconverted bandpass-filtered analog signal which resides approximately within a predetermined reverse-link frequency band; performing automatic gain control (204) of said downconverted bandpass-filtered analog signal to produce a first gain-controlled signal whose RMS amplitude is approximately equal to a predetermined value; performing analog-to-digital conversion (208) of said first gain-controlled signal to create a stream of digital samples; performing analysis (212) of said stream of digital samples to create a first set of sub-band power measurements corresponding to the received power associated with adjacent frequency sub-bands, each sub-band representing a fraction of a predetermined spectrum analysis band, said spectrum analysis band including frequency components outside of said reverse-link frequency band; and performing spectrum evaluation (216), comprising: identifying a group of one or more adjacent sub-band power measurements which exceed a predetermined threshold; and identifying any group of one or more sub-band power measurements which is inside the reverse-link frequency band, and are less than a predetermined minimum or threshold.

公开(公告)号：FI115597B

公开(公告)日：2005-05-31

申请号：FI971592

申请日：1997-04-15

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO ,  HAMDY WALID ,  BAR-DAVID GIL

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30 ,  H04Q7/38

Abstract: An improved method and system for performing a pilot signal searching operation in anticipation of handoff in mobile station communication between base stations is disclosed herein. The searching operation is described herein as being implemented within a cellular communication system which uses code division multiple access (CDMA) modulation techniques. The mobile station maintains a list of an Active Set of pilot signals transmitted from base stations with which the mobile station is to communicate through, and a Neighbor Set of pilots from base stations within a predetermined proximity of the mobile station. In addition to the Neighbor and Active Sets of pilots, the mobile station maintains a list of Candidate and Pre-Candidate Sets of pilots. Based on analysis of the signal strength of the pilot signals received at the mobile station, base station entries from the Neighbor Set may be assigned to the Pre-Candidate and Candidate Sets, and eventually to the Active set. The searching operation contemplates comparing pilot signal strength measurements corresponding to each base station entry within the Neighbor Set to a first predetermined level. One or more entries from the Neighbor Set having a base station signal strength measurement greater than the first predetermined level may be placed in the Pre-Candidate Set. The strength of the pilot signals associated with entries in the Pre-Candidate Set are then further evaluated to determine eligibility within the Candidate Set, from which are selected the entries comprising the Active Set.

公开(公告)号：NO972306A

公开(公告)日：1997-05-21

申请号：NO972306

申请日：1997-05-21

Applicant: QUALCOMM INC

Inventor： PODAVANI ROBERT ,  HAMDY WALID ,  BAR-DAVID GIL

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30

CPC classification number: H04W36/30 ,  H04B1/707 ,  H04B7/2637

公开(公告)号：FI971592A0

公开(公告)日：1997-04-15

申请号：FI971592

申请日：1997-04-15

Applicant: QUALCOMM INC

Inventor： PADOVANI ROBERTO ,  HAMDY WALID ,  BAR-DAVID GIL

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30 ,  H04Q ,  H04B

Abstract: An improved method and system for performing a pilot signal searching operation in anticipation of handoff in mobile station communication between base stations is disclosed herein. The searching operation is described herein as being implemented within a cellular communication system which uses code division multiple access (CDMA) modulation techniques. The mobile station maintains a list of an Active Set of pilot signals transmitted from base stations with which the mobile station is to communicate through, and a Neighbor Set of pilots from base stations within a predetermined proximity of the mobile station. In addition to the Neighbor and Active Sets of pilots, the mobile station maintains a list of Candidate and Pre-Candidate Sets of pilots. Based on analysis of the signal strength of the pilot signals received at the mobile station, base station entries from the Neighbor Set may be assigned to the Pre-Candidate and Candidate Sets, and eventually to the Active set. The searching operation contemplates comparing pilot signal strength measurements corresponding to each base station entry within the Neighbor Set to a first predetermined level. One or more entries from the Neighbor Set having a base station signal strength measurement greater than the first predetermined level may be placed in the Pre-Candidate Set. The strength of the pilot signals associated with entries in the Pre-Candidate Set are then further evaluated to determine eligibility within the Candidate Set, from which are selected the entries comprising the Active Set.

公开(公告)号：AT332066T

公开(公告)日：2006-07-15

申请号：AT99971202

申请日：1999-10-26

Applicant: QUALCOMM INC

Inventor： ANTONIO FRANKLIN P ,  HAMDY WALID

IPC: H04B7/005 ,  H04B7/26 ,  H04W28/26 ,  H04W52/34 ,  H04Q7/38

Abstract: A detector is used to sample of set of power measurements of a receive signal. The receive signal may comprise one or more signals from remote users as well as interference. A variance of the set of power measurements is also determined. The variance is compared to an overload threshold value. If the variance exceeds the overload threshold value, for some period of time, the system is declared to be operating at a potentially unstable point. In this state, future connection originations are denied.

公开(公告)号：NO320771B1

公开(公告)日：2006-01-23

申请号：NO972306

申请日：1997-05-21

Applicant: QUALCOMM INC

Inventor： PODAVANI ROBERT ,  HAMDY WALID ,  BAR-DAVID GIL

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30

Abstract: An improved method and system for performing a pilot signal searching operation in anticipation of handoff in mobile station communication between base stations is disclosed herein. The searching operation is described herein as being implemented within a cellular communication system which uses code division multiple access (CDMA) modulation techniques. The mobile station maintains a list of an Active Set of pilot signals transmitted from base stations with which the mobile station is to communicate through, and a Neighbor Set of pilots from base stations within a predetermined proximity of the mobile station. In addition to the Neighbor and Active Sets of pilots, the mobile station maintains a list of Candidate and Pre-Candidate Sets of pilots. Based on analysis of the signal strength of the pilot signals received at the mobile station, base station entries from the Neighbor Set may be assigned to the Pre-Candidate and Candidate Sets, and eventually to the Active set. The searching operation contemplates comparing pilot signal strength measurements corresponding to each base station entry within the Neighbor Set to a first predetermined level. One or more entries from the Neighbor Set having a base station signal strength measurement greater than the first predetermined level may be placed in the Pre-Candidate Set. The strength of the pilot signals associated with entries in the Pre-Candidate Set are then further evaluated to determine eligibility within the Candidate Set, from which are selected the entries comprising the Active Set.