公开(公告)号：ZA9406848B

公开(公告)日：1995-04-21

申请号：ZA9406848

申请日：1994-09-06

Applicant: MOTOROLA INC

Inventor： KREBS JAY ,  ERICKSON PAUL M

IPC: H04W84/08 ,  H04J ,  H04M ,  H04Q

CPC classification number: H04W84/08

公开(公告)号：CA2172058A1

公开(公告)日：1995-04-13

申请号：CA2172058

申请日：1994-08-18

Applicant: MOTOROLA INC

Inventor： ERICKSON PAUL M ,  KREBS JAY

IPC: H04W84/08 ,  H04Q7/24

Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

公开(公告)号：AU655968B2

公开(公告)日：1995-01-19

申请号：AU1248092

申请日：1992-01-16

Applicant: MOTOROLA INC

Inventor： ERICKSON PAUL M ,  CRISLER KENNETH J ,  HESS GARRY CARSON ,  THRO STUART WELLS

IPC: H04W48/14 ,  H04B7/26 ,  H04Q7/04 ,  H04M3/42

Abstract: A method of providing a radio communication unit (120) with information regarding radio communication services. The radio communication unit transmits a request regarding availability of one or more specific radio communication services. The radio communication unit then receives information regarding availability of the specified radio communication services.

公开(公告)号：CA2007012C

公开(公告)日：1993-06-01

申请号：CA2007012

申请日：1990-01-03

Applicant: MOTOROLA INC

Inventor： ERICKSON PAUL M ,  MATZ JOHN E ,  GROCH TIM J ,  STEDMAN ROBERT B ,  SHAUGHNESSY MARK L ,  KANDAH TAISIR Y

IPC: H04H20/67 ,  H04B1/04

Abstract: A simulcast broadcast uses digital signal processing techniques to scale pulse coded modulation samples of a signal for broadcast. Samples are adjusted to fully utilize all quantization levels representable by an 8-bit word. Time delay is adjustable using digital techniques by writing and reading data into and out of a RAM. Signal amplitude is adjustable by multiplying samples by a numeric factor. A computer can be used to adjust processing delay and amplification of the digital signal processor.

公开(公告)号：CA2460381A1

公开(公告)日：2003-12-31

申请号：CA2460381

申请日：2003-05-05

Applicant: MOTOROLA INC

Inventor： FELDERMAN WILLIAM A SR ,  ERICKSON PAUL M ,  DROZT PETER M ,  WOLF TRACY L

IPC: H04M3/56 ,  H04B7/26 ,  H04M3/42 ,  H04W84/08 ,  H04B7/00 ,  H04Q7/20

Abstract: To address the need to provide interurban dispatch services, embodiments supporting an interurban dispatch group call service are disclosed. Call control in the controlling network equipment (e.g., 110-131) manages the dispatch service in both the local urban area (101) and the remote urban are as (151). Call flow embodiments that enable this management of group call servi ce across urban area boundaries are described in detail.

公开(公告)号：SE517694C2

公开(公告)日：2002-07-02

申请号：SE9601206

申请日：1996-03-29

Applicant: MOTOROLA INC

Inventor： KREBS JAY ,  ERICKSON PAUL M

IPC: H04W84/08 ,  H04Q7/28

Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

公开(公告)号：CA2115656C

公开(公告)日：1998-11-24

申请号：CA2115656

申请日：1993-06-04

Applicant: MOTOROLA INC

Inventor： ROZENSTRAUCH ALEXANDER ,  ERICKSON PAUL M

IPC: H04B1/74 ,  H04B7/15 ,  H04W24/00 ,  H04B7/005

Abstract: A radio communication system controller (100) includes a first (103) and second (104) processor for processing input communication messages (101) used in a radio communication system. The controlle r (100) further includes shared memory (105), which memory is accessible to each of the first (103) and second ( 104) processo rs, for storing the input communication messages (101). The controller (100) is further equipped with fault detection capability (107) for determining (402) when a processing fault has occurred.

公开(公告)号：CA2172058C

公开(公告)日：1998-07-07

申请号：CA2172058

申请日：1994-08-18

Applicant: MOTOROLA INC

Inventor： KREBS JAY ,  ERICKSON PAUL M

IPC: H04W84/08 ,  H04Q7/24

Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

公开(公告)号：SE9601206L

公开(公告)日：1996-05-31

申请号：SE9601206

申请日：1996-03-29

Applicant: MOTOROLA INC

Inventor： KREBS JAY ,  ERICKSON PAUL M

IPC: H04W84/08 ,  H04Q7/28

Abstract: Apparatus and method for enabling a single communication system (100) to support at least two communication services. For example, one can support both cellular telephone services and trunked dispatch services by sharing some, but not all, of the system infrastructure. Access control gateways (201) and base stations (203) comprise common infrastructure elements, while two separate processors provide control for each service, these being a communication agent processor (104) to support telephone services, and a dispatch call processor (106) to support dispatch call services. These two independent processors each include a data base (303 and 307) that includes information concerning communication units (204-206) operating within the system. During a call set-up sequence, the access control gateway (201) receives a call request from a communication unit via a base station, and passes the request to the appropriate processor, which uses its corresponding database to support the requested service.

公开(公告)号：ZA945424B

公开(公告)日：1995-07-25

申请号：ZA945424

申请日：1994-07-22

Applicant: MOTOROLA INC

Inventor： BLASIAK DAREK ,  PFEIL JEFF ,  ERICKSON PAUL M

IPC: H04B7/26 ,  H04M20060101 ,  H04W84/08 ,  H04M

Abstract: A multi-site communication system (100) includes a plurality of communication units (106, 107) roaming among communication sites (108-111). The communication sites (108-111) are controlled by a central controller (100), via repeaters (102-105), and are thereby capable of establishing communication among sites. A method for minimizing message interruptions during a hand-off, of a first communication unit between two sites, includes the step of receiving (200) a message (300) from a second communication unit. During the message (300), which may be delivered at varying information rates, the first communication unit determines (202) the signal quality. If the signal quality of the message is unfavorable, the receiving communication unit determines (204) when the varying information rate of the message is favorable for a hand-off. Lastly, when the varying information rate is favorable for a hand-off, the first communication unit requests (205) the hand-off.