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：DE69526963T2

公开(公告)日：2003-01-23

申请号：DE69526963

申请日：1995-11-22

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：NO972306L

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

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：NO972306D0

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

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：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.

公开(公告)号：MX9703723A

公开(公告)日：1997-09-30

申请号：MX9703723

申请日：1995-11-22

Applicant: QUALCOMM INC

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

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30 ,  H04Q07/38 ,  H04B07/26 ,  H04B01/707

Abstract: Un método y sistema mejorado para llevar a cabo una operacion de busqueda de señal piloto previa a la transferencia en la estacion movil (18) de la comunicacion entre las estaciones base (12, 14). La estacion movil (18) mantiene una lista de señales piloto del Conjunto Activo transmitidas a partir de estaciones base a través de las cuales se comunica la estacion movil, y una lista de señales piloto del Conjunto Vecino (N) provenientes de las estaciones base dentro de una proximidad predeterminada de la estacion movil (18). La operacion de busqueda contempla la comparacion de las mediciones de resistencia de señal piloto correspondientes a cada entrada de estacion base dentro del Conjunto Vecino (N) con un primer nivel predeterminado. Una o más entradas provenientes del Conjunto Vecino (N) que tienen una medicion de resistencia de señal de estacion base mayor al primer nivel predeterminado pueden colocarse en el Conjunto Pre-Candidato (PC). Las resistencias de las señales piloto asociadas con entradas en el Conjunto Pre-Candidato (PC) se evaluan después de manera adicional para predeterminar la elegibilidad dentro del Conjunto Candidato (C), del cual se seleccionan las entradas que comprenden el Conjunto Activo.

公开(公告)号：ZA959883B

公开(公告)日：1996-07-09

申请号：ZA959883

申请日：1995-11-21

Applicant: QUALCOMM INC

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

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30 ,  H04J ,  H04Q ,  H04L ,  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：ZA9509883B

公开(公告)日：1996-07-09

申请号：ZA9509883

申请日：1995-11-21

Applicant: QUALCOMM INC

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

IPC: H04B1/707 ,  H04B7/26 ,  H04W36/30 ,  H04J ,  H04B ,  H04L ,  H04Q

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

公开(公告)号：WO9616524A3

公开(公告)日：1996-08-08

申请号：PCT/US9515298

申请日：1995-11-22

Applicant: QUALCOMM INC

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

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

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

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). The 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 entries comprising the Active Set.