公开(公告)号：EP0568659A1

公开(公告)日：1993-11-10

申请号：EP92921352.0

申请日：1992-09-30

Applicant: MOTOROLA, INC.

Inventor： DIAZ, Rafael, J. ,  NADDELL, Marc ,  GRUBE, Gary, W. ,  ROBERTS, Robin ,  SASUTA, Michael, D. ,  ADAMCZYK, Robert

IPC: H04J3 ,  H04W28 ,  H04W72

CPC classification number: H04W28/26 ,  H04J3/125 ,  H04W72/0486

Abstract: Un contrôleur central de système de radiocommunications peut recouvrir à un procédé qui permet de maintenir un niveau prédéterminé en matière de service de communications. Ce système comporte plusieurs canaux vocaux attribués à plusieurs abonnés (108-112) et prévoit l'utilisation d'un premier canal de contrôle (102). Dans une variante préférée, un des canaux vocaux au moins permet aussi une activité de contrôle. Ce procédé implique d'évaluer (502) un facteur de charge ponctuel pour le comparer (504) à une valeur maximum. Le contrôleur assigne (506) éventuellement un des canaux permettant le contrôle à une activité provisoire de contrôle.

公开(公告)号：EP1050120B1

公开(公告)日：2006-04-05

申请号：EP98935686.0

申请日：1998-07-17

Applicant: MOTOROLA, INC.

Inventor： GRUBE, Gary, W. ,  COMROE, Richard, A.

IPC: H04B7/216 ,  H04J3/24 ,  H04Q7/00 ,  H04L12/16 ,  H04Q7/38

CPC classification number: H04W8/186 ,  H04J13/16

Abstract: In a wireless code-division multiple access (CDMA) system (100), a talkgroup (101) of subscriber units is provided. A sub-group (102) of subscriber units, forming a part of the talkgroup is assigned at least one inbound code (416-417). The entire talkgroup is assigned an outbound code (415). Members of the sub-group may simultaneously transmit voice information (410-411) using the at least one inbound code, which voice information is summed (412) and retransmitted to the talkgroup using the outbound code. Subscriber units in the talkgroup, but not included in the sub-group, are allowed to transmit voice information only after requesting, and receiving, an additional inbound code.

公开(公告)号：EP0749667B1

公开(公告)日：2001-11-14

申请号：EP95911603.9

申请日：1995-02-02

Applicant: MOTOROLA, INC.

Inventor： GRUBE, Gary, W. ,  NADDELL, Marc, C. ,  SHAUGHNESSY, Mark, L.

IPC: H04Q7/36

CPC classification number: H04W4/02 ,  H04W12/08

Abstract: Alternate communication services may be provided in a communication system (100) based on the geographic location of a target communication unit. When a service request, which identifies the target communication unit and a particular service, is received by a communication resource controller (101), the communication resource controller (101) ascertains the location of a target communication unit and determines whether the target unit is located within a predefined area. If the target unit (102, 103) is located with the predefined area, the communication resource controller (101) determines whether the particular service requested is prohibited in the predefined area. If the service is prohibited, an alternate service is made available to the initiating communication unit.

公开(公告)号：EP0541772B1

公开(公告)日：1999-12-01

申请号：EP92912303.2

申请日：1992-04-06

Applicant: MOTOROLA, INC.

Inventor： GRUBE, Gary, W. ,  PARMELEE, Steven, G.

IPC: H04B1/38

CPC classification number: H04L67/125 ,  G06Q20/327 ,  H04B1/38 ,  H04L67/04 ,  H04M1/72533

Abstract: A personal communications device (100) includes a wireless transceiver (206, 207, 208) to allow a two-way exchange of user information, and to allow down loading of remote control signalling information. The latter can be transmitted via an appropriate transmitter (210 or 211) to facilitate remote control of a remote controlled device.

公开(公告)号：EP0568658B1

公开(公告)日：1998-12-16

申请号：EP92921267.8

申请日：1992-09-30

Applicant: MOTOROLA, INC.

Inventor： GRUBE, Gary, W. ,  DIAZ, Rafael, J. ,  ADAMCZYK, Robert ,  ROBERTS, Robin, C. ,  SASUTA, Michael, D.

IPC: H04Q7/28 ,  H04B1/00 ,  H04J3/16

CPC classification number: H04W28/26 ,  H04W72/0486

Abstract: A method (215) of converting a current control channel for use as a communication (voice/data) channel, in order to maintain a predetermined level of service in a radio communications system, employs a central controller (101) to allocate a limited number of communication channels among a plurality of subscriber units (108-112). After receiving (203) a request for a communication channel from one of a plurality of subscriber units (108-112), the controller (101) determines (205) whether all of the communication channels are busy. The controller then temporarily converts (215) the current control channel to a communication channel.