公开(公告)号：CA2089365C

公开(公告)日：1996-06-11

申请号：CA2089365

申请日：1991-08-16

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A ,  WERRONEN ALTON P ,  HART THOMAS B ,  HARDMAN SCOTT A ,  HULSEBOSCH THOMAS G

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

Abstract: A cellular system transfers a call from a source base-site (200) to one target base-site (205, 210). A source base-site (200) measures the signal strength (RSSIS) of a mobile (225), provides a forecasted signal strength (RSSIF) and sets up two time windows. The source base-site (200) sends the measured and forecasted signal strengths to candidate base-sites (205, 210) found by the mobile (225) which measure the mobile (225) signal strength (RSSIT) and compare it to (RSSIS + hysteresis value). If RSSIT> RSSIS, the call is transferred to the best responding cell. If RSSIT RSSIF at any candidate base-sites (205, 210), the call is transferred to the responding base-site (205, 210). If the source base-site (200) receives no responses during the second time window, the process ends.

公开(公告)号：HUT71357A

公开(公告)日：1995-11-28

申请号：HU9500643

申请日：1994-06-08

Applicant: MOTOROLA INC

Inventor： LODWIG JOHN PHILLIP ,  FELIX KENNETH A ,  WHITTINGTON CHARLES LYNN

IPC: H04B7/26 ,  H04W36/12 ,  H04M11/00

Abstract: A method of transferring a user message-conveying radiotelephone call by a subscriber unit from a first radio coverage area, served by a first fixed control unit which is coupled to a wireline telephone switch, to a second radio coverage area served by a second fixed control unit, includes transmitting a directory number, associated with the first fixed control unit and the wireline telephone switch, the directory number identifying a wireline telephone number of the first fixed control unit, from the first fixed control unit to the subscriber unit; storing the transmitted directory number at the subscriber unit; transmitting the stored directory number from the subscriber unit to the second fixed control unit when a need for transfer of the radiotelephone call to the second fixed control unit from the first fixed control unit is determined; calling the transmitted directory number from the second fixed control unit; in response to the calling of the directory number, connecting the second fixed control unit to the first fixed control unit via the wireline telephone switch; and transferring control of the radiotelephone call from the first fixed control unit to the second fixed control unit by dialing the transmitted directory number from the second fixed control unit.

公开(公告)号：FI950967A0

公开(公告)日：1995-03-02

申请号：FI950967

申请日：1995-03-02

Applicant: MOTOROLA INC

Inventor： LODWIG JOHN PHILLIP ,  FELIX KENNETH A ,  WHITTINGTON CHARLES L

IPC: H04B7/26 ,  H04W36/12 ,  H04Q

Abstract: A method of transferring a user message-conveying radiotelephone call by a subscriber unit from a first radio coverage area, served by a first fixed control unit which is coupled to a wireline telephone switch, to a second radio coverage area served by a second fixed control unit, includes transmitting a directory number, associated with the first fixed control unit and the wireline telephone switch, the directory number identifying a wireline telephone number of the first fixed control unit, from the first fixed control unit to the subscriber unit; storing the transmitted directory number at the subscriber unit; transmitting the stored directory number from the subscriber unit to the second fixed control unit when a need for transfer of the radiotelephone call to the second fixed control unit from the first fixed control unit is determined; calling the transmitted directory number from the second fixed control unit; in response to the calling of the directory number, connecting the second fixed control unit to the first fixed control unit via the wireline telephone switch; and transferring control of the radiotelephone call from the first fixed control unit to the second fixed control unit by dialing the transmitted directory number from the second fixed control unit.

公开(公告)号：FI950967A

公开(公告)日：1995-03-02

申请号：FI950967

申请日：1995-03-02

Applicant: MOTOROLA INC

Inventor： LODWIG JOHN PHILLIP ,  FELIX KENNETH A ,  WHITTINGTON CHARLES L

IPC: H04B7/26 ,  H04W36/12 ,  H04Q

Abstract: A method of transferring a user message-conveying radiotelephone call by a subscriber unit from a first radio coverage area, served by a first fixed control unit which is coupled to a wireline telephone switch, to a second radio coverage area served by a second fixed control unit, includes transmitting a directory number, associated with the first fixed control unit and the wireline telephone switch, the directory number identifying a wireline telephone number of the first fixed control unit, from the first fixed control unit to the subscriber unit; storing the transmitted directory number at the subscriber unit; transmitting the stored directory number from the subscriber unit to the second fixed control unit when a need for transfer of the radiotelephone call to the second fixed control unit from the first fixed control unit is determined; calling the transmitted directory number from the second fixed control unit; in response to the calling of the directory number, connecting the second fixed control unit to the first fixed control unit via the wireline telephone switch; and transferring control of the radiotelephone call from the first fixed control unit to the second fixed control unit by dialing the transmitted directory number from the second fixed control unit.

公开(公告)号：MX9405035A

公开(公告)日：1995-01-31

申请号：MX9405035

申请日：1994-07-01

Applicant: MOTOROLA INC

Inventor： LODWIG JOHN PHILLIP ,  FELIX KENNETH A ,  WHITTINGTON CHARLES LYNN

IPC: H04B7/26 ,  H04W36/12 ,  H04M1/00 ,  H04B1/00

Abstract: A method of transferring a user message-conveying radiotelephone call by a subscriber unit from a first radio coverage area, served by a first fixed control unit which is coupled to a wireline telephone switch, to a second radio coverage area served by a second fixed control unit, includes transmitting a directory number, associated with the first fixed control unit and the wireline telephone switch, the directory number identifying a wireline telephone number of the first fixed control unit, from the first fixed control unit to the subscriber unit; storing the transmitted directory number at the subscriber unit; transmitting the stored directory number from the subscriber unit to the second fixed control unit when a need for transfer of the radiotelephone call to the second fixed control unit from the first fixed control unit is determined; calling the transmitted directory number from the second fixed control unit; in response to the calling of the directory number, connecting the second fixed control unit to the first fixed control unit via the wireline telephone switch; and transferring control of the radiotelephone call from the first fixed control unit to the second fixed control unit by dialing the transmitted directory number from the second fixed control unit.

公开(公告)号：MX9305890A

公开(公告)日：1994-03-31

申请号：MX9305890

申请日：1993-09-24

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A

IPC: H04W48/12 ,  H04W74/00 ,  H04W84/08 ,  H04B3/00

Abstract: A method is provided of allocating channels in a trunked radio frequency communication system having a plurality of channels, each with a channel rate. The method includes the steps of transmitting channel characteristics on idle channels of the plurality of channels by a base site. Idle channels are then scanned for channel characteristics by a communication unit. The method also includes the step of seizing an idle channel, by the communication unit, based, at least in part, upon the channel characteristics.

公开(公告)号：CA2089365A1

公开(公告)日：1992-03-28

申请号：CA2089365

申请日：1991-08-16

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A ,  WERRONEN ALTON P ,  HART THOMAS B ,  HARDMAN SCOTT A ,  HULSEBOSCH THOMAS G

IPC: H04W36/30

公开(公告)号：FI891276A0

公开(公告)日：1989-03-17

申请号：FI891276

申请日：1989-03-17

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A

IPC: H04B7/26 ,  H04L12/56 ,  H04W28/04 ,  H04W36/06 ,  H04W36/08 ,  H04W36/22 ,  H04W72/04 ,  H04W74/04 ,  H04W84/04 ,  H04W92/02 ,  H04Q

Abstract: A method of handoff for use at base sites (110) of a cellular telephone system for handing off from one of the base sites to another one of the base sites at least one of a plurality of cellular telephones (102) each transceiving data packets and sharing a cellular radio channel of the cellular telephone system, which channel may be packet-switched or digital. A handoff message is sent to one of the active ones of the plurality of cellular telephones in response to determined system loading or signal characteristic, as exemplified in FIG. 7.

公开(公告)号：DE69937952D1

公开(公告)日：2008-02-21

申请号：DE69937952

申请日：1999-07-14

Applicant: MOTOROLA INC

Inventor： RINCHIUSO JOSEPH ,  FELIX KENNETH A

IPC: H04L12/16 ,  H04B7/26 ,  H04L12/18 ,  H04L12/28 ,  H04L12/56 ,  H04L29/06

Abstract: In order to reduce messaging within a wireless communication system an emulator (137) is provided that receives multicast packet data from a router (138). The multicast packet data is transmitted from a server (120) and destined to at least one remote unit (113-117). The emulator (137) additionally receives control data for the current multicast session from the router (138). The first set of data is transmitted to the remote unit (113-117) and the emulator (137) responds to the control data (via a response message (134)) without transmitting the control messages to the remote unit (113-117).

公开(公告)号：DE68929365D1

公开(公告)日：2002-02-07

申请号：DE68929365

申请日：1989-01-23

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A

IPC: H04B7/26 ,  H04L12/56 ,  H04W28/04 ,  H04W36/06 ,  H04W36/08 ,  H04W36/22 ,  H04W72/04 ,  H04W74/04 ,  H04W84/04 ,  H04W92/02 ,  H04Q7/22 ,  H04Q7/38

Abstract: A method of handoff for use at base sites (110) of a cellular telephone system for handing off from one of the base sites to another one of the base sites at least one of a plurality of cellular telephones (102) each transceiving data packets and sharing a cellular radio channel of the cellular telephone system, which channel may be packet-switched or digital. A handoff message is sent to one of the active ones of the plurality of cellular telephones in response to determined system loading or signal characteristic, as exemplified in FIG. 7.