公开(公告)号：EP0659321A1

公开(公告)日：1995-06-28

申请号：EP94921266.0

申请日：1994-06-08

Applicant: MOTOROLA, INC.

Inventor： LODWIG, John, Phillip ,  FELIX, Kenneth, A. ,  WHITTINGTON, Charles, Lynn

IPC: H04B7 ,  H04W36

CPC classification number: H04W36/12

Abstract: Handoff between coverage areas is achieved in a radiotelephone system coupled to standard wireline switches. Upon initiation of a radiotelephone call in one radio coverage area, a directory number and radio call identifier (203) are downloaded to the subscriber unit (101) from a fixed control unit (111) associated with the coverage area. When the subscriber unit determines a handoff to a target radio coverage area is desirable, it transmits the directory number and radio call identifier to another fixed control unit (113) associated with the target radio coverage area. This fixed control unit calls the directory number and is coupled to the first fixed control unit via the standard wireline switch (115, 117). The radio call identifier is then sent to the first fixed control unit to enable the proper connection for handoff.

公开(公告)号：EP1097537B1

公开(公告)日：2006-09-13

申请号：EP99935587.8

申请日：1999-07-14

Applicant: MOTOROLA, INC.

Inventor： RINCHIUSO, Joseph ,  FELIX, Kenneth, A.

IPC: H04Q7/22 ,  H04B7/26

CPC classification number: H04J13/0048 ,  H04W4/06 ,  H04W48/16 ,  H04W72/04

Abstract: Remote units (113-117) that wish to receive a multicast session, monitor a multicast advertisement message on a system broadcast channel to determine a session to receive. Once a remote unit (113-117) requests participation in the multicast event, a common supplemental channel (205) is assigned to the remote unit (113-117), and the multicast session is broadcast to all remote units (113-117) currently participating in the multicast event. The common supplemental channel (205) utilizes two unique spreading codes for channel assignment, with one of the spreading codes being a function of the multicast session address (501) that is broadcast by the server (120).

公开(公告)号：EP0993724A1

公开(公告)日：2000-04-19

申请号：EP98918726.5

申请日：1998-04-24

Applicant: MOTOROLA, INC.

Inventor： FELIX, Kenneth, A. ,  RINCHIUSO, Joseph

IPC: H04L27/04 ,  H04L27/12 ,  H04L27/20

CPC classification number: H04B1/707 ,  H04J13/0048 ,  H04L27/0008 ,  H04L27/362 ,  H04W52/16 ,  H04W52/262

Abstract: Data transmission within a broad-band communication system occurs as follows: during time periods where a remote unit (113) is not actively communicating to a base station (100) utilizing either a fundamental or a supplemental channel, the remote unit (113) is actively or periodically monitoring a forward control channel (IS-95A paging channel) for notification of any pending transmission by the base station (100). The base station (100) determines that a high data rate transmission to the remote unit (113) needs to take place and determines if supplemental channel circuitry (105) is available for utilization. Shortly prior to supplemental channel avaibility, the base station (100) notifies the remote unit (113) of a pending data transmission and assigns the remote unit (113) a fundamental channel to establish an appropriate transmit power level. Finally, data transmission to the remote unit (113) takes place utilizing the supplemental channel.

公开(公告)号：EP0653131A1

公开(公告)日：1995-05-17

申请号：EP94917297.0

申请日：1994-05-02

Applicant: MOTOROLA, INC.

Inventor： FELIX, Kenneth, A. ,  DEAN, Anthony, K.

IPC: H04L1 ,  H04B7 ,  H04J3 ,  H04W76

CPC classification number: H04B7/2656 ,  H04W76/10

Abstract: A communication system (100) segments a field of data such that segments of data are transmitted in their own timeslot with their own control field. The communication system (100) segments the field of data into segments of data, adds control to the timeslot in a field designated for user information, and transmits the segmented data and control during the timeslots to a receiving unit. A receiving unit receives the timeslot, stores the segment of data representing a segment of the field, and recombines the segments to produce the field of data. If a retransmission is requested by a receiving unit, the transmitting unit need only retransmit the single timeslot containing the segment of data received in error. There is never a need to retransmit multiple timeslots since, in effect, each timeslot contains a discrete segment of the field of data.

公开(公告)号：EP0614589A1

公开(公告)日：1994-09-14

申请号：EP93916873.0

申请日：1993-06-30

Applicant: MOTOROLA, INC.

Inventor： FELIX, Kenneth, A. ,  STERN, Morton

IPC: H04W72 ,  H04W84

CPC classification number: H04W72/085 ,  H04W72/0406 ,  H04W84/16

Abstract: Dans un réseau de communication (10) sans fil PBX à installation d'abonnés (11), un procédé et un appareil sont utilisés pour identifier les ressources de communication du réseau. Le procédé comprend les étapes de mesure du facteur de qualité des siganux d'un canal d'un spectre choisi et de comparaison des valeurs mesurées avec une valeur de seuil. Le procédé comprend de plus l'étape de sélection des canaux excédant la valeur de seuil, en tant que ressources de communication du réseau. Le spectre sélectionné est celui qui est aussi utilisé par un réseau de communication cellulaire local. Lorsque le balayage détermine qu'un canal n'est pas utilisé par le système cellulaire, son utilisation est alors permise avec le système privé.