公开(公告)号：DE3856417T2

公开(公告)日：2001-01-25

申请号：DE3856417

申请日：1988-01-11

Applicant: MOTOROLA INC

Inventor： BONTA JEFFREY ,  SCHAEFFER DENNIS ,  MENICH BARRY ,  HOFSTRA EDWARD

IPC: H04W36/08 ,  H04W36/30 ,  H04W74/06 ,  H04Q7/38 ,  H04Q7/22

公开(公告)号：DE3856417D1

公开(公告)日：2000-07-13

申请号：DE3856417

申请日：1988-01-11

Applicant: MOTOROLA INC

Inventor： BONTA JEFFREY ,  SCHAEFFER DENNIS ,  MENICH BARRY ,  HOFSTRA EDWARD

IPC: H04W36/08 ,  H04W36/30 ,  H04W74/06 ,  H04Q7/38 ,  H04Q7/22

公开(公告)号：DE69228238D1

公开(公告)日：1999-03-04

申请号：DE69228238

申请日：1992-08-24

Applicant: MOTOROLA INC

Inventor： MENICH BARRY ,  BONTA JEFFREY

IPC: H04B7/26 ,  H04W36/20 ,  H04W72/08 ,  H04B15/00

Abstract: A method is offered of achieving a desired C/I ratio within a cellular system, at reduced transmitter power levels, by measuring a signal loss on a downlink between a base site transmitter (31) and mobile receiver (20) and calculating an uplink signal magnitude at a base site receiver. A communication channel is then selected from a number of communication channels based upon comparison of the uplink signal magnitude with pre-measured interference levels for each channel of the number of channels to produce a desired C/I ratio.

公开(公告)号：DE69319821T2

公开(公告)日：1999-03-04

申请号：DE69319821

申请日：1993-01-27

Applicant: MOTOROLA INC

Inventor： MENICH BARRY ,  BONTA JEFFREY

IPC: H04W36/30 ,  H04W36/32 ,  H04Q7/20 ,  H04B7/26

Abstract: A method of selecting handover targets for a communication unit exchanging a communicated signal through a serving base site in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit to the serving base site. The method comprising the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the non-adjacent base sites may be determined from the directionality of the communication unit. The method further includes the step of selecting a handover target providing a highest relative RSSI value to the communication unit from the modified base site frequency list.

公开(公告)号：DE69319821D1

公开(公告)日：1998-08-27

申请号：DE69319821

申请日：1993-01-27

Applicant: MOTOROLA INC

Inventor： MENICH BARRY ,  BONTA JEFFREY

IPC: H04W36/30 ,  H04W36/32 ,  H04Q7/20 ,  H04B7/26

Abstract: A method of selecting handover targets for a communication unit exchanging a communicated signal through a serving base site in a digital cellular system. The method uses timing advance to determine a relative distance of a communication unit to the serving base site. The method comprising the steps of comparing a timing advance value with a first threshold. The first threshold may be equal to a distance one and one-half times the radius of the serving cell. When the timing advance value exceeds the first threshold, a base site frequency list is modified to include base sites non-adjacent the serving base site. The identity of the non-adjacent base sites may be determined from the directionality of the communication unit. The method further includes the step of selecting a handover target providing a highest relative RSSI value to the communication unit from the modified base site frequency list.

公开(公告)号：DE3855491T2

公开(公告)日：1997-03-06

申请号：DE3855491

申请日：1988-01-11

Applicant: MOTOROLA INC

Inventor： BONTA JEFFREY ,  SCHAEFFER DENNIS ,  MENICH BARRY ,  HOFSTRA EDWARD

IPC: H04W36/08 ,  H04W36/30 ,  H04W74/06 ,  H04Q7/00 ,  H04Q7/38

公开(公告)号：FI964292A0

公开(公告)日：1996-10-25

申请号：FI964292

申请日：1996-10-25

Applicant: MOTOROLA INC

Inventor： MENICH BARRY ,  AKINNIYI AKINGBADE

IPC: H04B7/26 ,  H04B7/005 ,  H04W16/10 ,  H04W52/24 ,  H04B

Abstract: A communication system (100) employs a method (400) and apparatus (101, 113) for mitigating interference (119) produced by a communication unit (113) communicating with a serving base site (101) in the communication system (100). While the communication unit (113) is communicating with the serving base site (101), the communication unit (113) monitors (405) a downlink communication signal (118) transmitted by an alternate base site (105). The communication unit (113) then determines (407) an indicia of signal usability for the monitored downlink signal (118) and adjusts (421) a transmit power of the communication unit (113) based on the indicia of signal usability.

公开(公告)号：EP0758505A4

公开(公告)日：1999-01-13

申请号：EP96911183

申请日：1996-01-17

Applicant: MOTOROLA INC

Inventor： MENICH BARRY ,  AKINNIYI AKINGBADE

IPC: H04B7/26 ,  H04B7/005 ,  H04W16/10 ,  H04W52/24 ,  H04B15/00

CPC classification number: H04W16/10 ,  H04W52/24

Abstract: A communication system (100) employs a method (400) and apparatus (101, 113) for mitigating interference (119) produced by a communication unit (113) communicating with a serving base site (101) in the communication system (100). While the communication unit (113) is communicating with the serving base site (101), the communication unit (113) monitors (405) a downlink communication signal (118) transmitted by an alternate base site (105). The communication unit (113) then determines (407) an indicia of signal usability for the monitored downlink signal (118) and adjusts (421) a transmit power of the communication unit (113) based on the indicia of signal usability.