公开(公告)号：AU2002348302A1

公开(公告)日：2003-06-10

申请号：AU2002348302

申请日：2002-11-19

Applicant: MOTOROLA INC

Inventor： BATTIN ROBERT D ,  HARRIS JOHN M ,  BROWN TYLER A ,  PROCTOR LEE M

IPC: H04L1/00 ,  H04W4/10 ,  H04W84/08

Abstract: A typical radio frame (300) comprises A, B, and C vocoded bits (304). At the end of each frame (300) A and B bits (305) are inserted from a previous frame. Thus, each frame not only comprises A, B, and C bits (304) for that frame, but also comprises those A and B bits (305) originally transmitted in a prior frame. Thus, each frame comprises high and low priority vocoded bits (304) from the current vocoder frame, and those higher priority bits from a preceding frame (305). By placing an inner CRC (302, 303) around the most important bits of the vocoded frame, even though a frame is erased (e.g. its outer CRC (301) failed) it can still be verified that the most important bits in the vocoded frame are correct. Since the class B and C bits can tolerate some errors, the vocoded frame can then play out if its inner CRC passes.

公开(公告)号：AT491267T

公开(公告)日：2010-12-15

申请号：AT04753623

申请日：2004-05-28

Applicant: MOTOROLA INC

Inventor： KELLEY SEAN S ,  HARRIS JOHN M

IPC: H04B7/00 ,  H04W68/00 ,  H04W76/04

公开(公告)号：MX2007003452A

公开(公告)日：2007-10-10

申请号：MX2007003452

申请日：2005-09-12

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  LUZ YUDA Y ,  CROCKER RONALD T

IPC: H04B1/00

Abstract: Un aparato de comunicacion (202) que convierte una corriente de bits a simbolos multiples y proporciona encriptacion en una capa fisica alternando una fase de cada simbolo de los simbolos multiples, para producir simbolos encriptados multiples. Cada simbolo encriptado de los simbolos encriptados multiples, se modulan con un subtransportador ortogonal (214) para producir al menos un subtransportador modulado y al menos un subtransportador modulado es transmitido (278) posteriormente a traves de un enlace inalambrico. En una parte de recepcion (260), un aparato de comunicacion de recepcion (250) recibe los simbolos encriptados, transmitidos (230) y proporciona desencriptacion en una capa fisica alternando una fase de cada simbolo encriptado en correspondencia con la fase (234) utilizada para encriptar el simbolo en la parte de transmision.

公开(公告)号：AT335376T

公开(公告)日：2006-08-15

申请号：AT02732053

申请日：2002-06-05

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M

IPC: H04B1/7103 ,  H04W16/14 ,  H04W36/06 ,  H04W80/00 ,  H04Q7/38

Abstract: In a code division multiple access (CDMA) system a dispatch call is established between two mobile units ( 10 ) and ( 12 ). The system includes a CDMA 2000 system providing for the dispatch data services. This requires that messages and bearer traffic are processed by radio link protocol. The CDMA 2000 system supports the FCH and DCCH channels. If the speaker's forward link is link limited, ( 26 ), then a DCCH channel is assigned to the speaker, ( 28 ). If the speaker's reverse link is link limited then a FCH channel is assigned to the speaker. In addition if there is a low battery level of the speaker, an FCH channel is assigned to the speaker, ( 30 ). When the speaker changes, ( 40 ), the FCH and DCCH channels for the speaker and listener are switched dynamically, ( 44-48 ).

公开(公告)号：BRPI0408348A

公开(公告)日：2006-03-21

申请号：BRPI0408348

申请日：2004-02-27

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  JAYAPALAN JAY PURUSHOTHAMAN ,  KAY JOHN C ,  KELLEY SEAN S

IPC: H04W76/04 ,  H04B7/00

Abstract: A communication system (100), upon receiving an instruction to transfer deferrable data, determines whether an air interface (128) is congested and, when the air interface is congested, defers a transfer of the deferrable data or transfers the deferrable, lower priority data as higher priority data. When, during a transfer of deferrable data, the system determines that the air interface is congested, the system may terminate the call and save a state of a partially completed deferred data transfer. Subsequent to the termination of the call, the system establishes another data connection over the air interface and transfers any remaining, not yet transferred deferrable data. In order to discourage subscribers from transferring higher priority data as lower priority data, the system may further restrict a transfer of lower priority data to designated time periods while allowing a transfer of higher priority data during the designated time periods and other time periods.

公开(公告)号：BR0317128A

公开(公告)日：2005-10-25

申请号：BR0317128

申请日：2003-12-02

Applicant: MOTOROLA INC

Inventor： SCHMIDT CHRISTOPHER R ,  HARRIS JOHN M ,  KELLEY SEAN S

IPC: H04W24/00 ,  H04W24/10 ,  H04B7/212 ,  H04Q7/00 ,  H04B17/00

Abstract: Apparatus and method for performing radio environment reporting on a reverse common signaling channel. When a dedicated RF connection between a remote unit (RU) ( 118 ) and infrastructure equipment ( 109 ) is being released, the RU receives a first message from the infrastructure instructing the RU to perform occasional pilot strength reporting on the reverse common signaling channel (r-csch) while the RU is in the idle state. In the preferred embodiment, the pilot strength reporting is limited by a maximum number of reports and/or a time limit to preserve battery life and prevent r-csch congestion in the system. Preferably, a Radio Environment Report Message, referred to generally herein as a second message, carries radio environment information (REI), such as pilot strength and phase of the best pilots measured, and helps the infrastructure both with tracking the RU location and with selecting a strong set of pilots for channel assignment.

公开(公告)号：CA2537717A1

公开(公告)日：2005-04-14

申请号：CA2537717

申请日：2004-09-09

Applicant: MOTOROLA INC

Inventor： SCHAEFER BRADLEY R ,  HARRIS JOHN M ,  SHAUGHNESSY MARK L

IPC: H04W4/10 ,  H04W76/04

Abstract: For a push-to-talk function in a mobile communication system (30), an indication is received (35) by a user (50) that the talking floor is available. Next, an uplink temporary block flow is established (36). Prior t o release of the uplink temporary block flow by the mobile communication syste m, a refresh message is sent (39) to hold the uplink temporary block flow. Downlink temporary block flows may also be refreshed by this method, or by t he mobile communication system. Then the requesting user may enable the push-to - talk function. These techniques can improve talker arbitration and call setu p delays for push-to-talk.

公开(公告)号：AU2003299949A1

公开(公告)日：2004-07-29

申请号：AU2003299949

申请日：2003-12-23

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  JAYAPALAN JAY ,  FLEMING PHILIP JOSEPH

IPC: H04B7/00 ,  H04W4/10 ,  H04W68/00 ,  H04W76/00

Abstract: An interconnect communication system is provided that provides for dispatch-type services including Instant Access call set up, talkgroup creation and management, and in-band floor arbitration and mode switching that employ in-band signaling tones. By providing talkgroup creation and management and in-band floor arbitration that are transparent to the underlying network, the talkgroup creation and management and in-band floor arbitration may be implemented in a legacy system without the need to modify the network and regardless of the type of network employed. Furthermore, by providing Instant Access call set up procedures and mode switching procedures that are capable of utilizing modified versions of known messages, the procedures may be implemented in a legacy system in a simplified manner, minimizing the impact of an addition of such procedures to a legacy network.

公开(公告)号：AU2003265792A8

公开(公告)日：2004-03-19

申请号：AU2003265792

申请日：2003-08-28

Applicant: MOTOROLA INC

Inventor： SREY LENA ,  HARRIS JOHN M ,  KAKKAR SHALAHB

IPC: H04L12/28 ,  H04L12/56 ,  H04W28/18 ,  H04W72/10 ,  H04W74/00 ,  H04W80/00 ,  H04Q7/20 ,  H04J3/16

公开(公告)号：AU2003259276A1

公开(公告)日：2004-02-25

申请号：AU2003259276

申请日：2003-07-29

Applicant: MOTOROLA INC

Inventor： HARRIS JOHN M ,  CROCKER RONALD T ,  CRANE ERIC K

IPC: H04M3/487 ,  H04W4/12 ,  H04W4/14 ,  H04W76/02

Abstract: Portions of transmitted messages, such as a portion of a service option field, can include a coded representation. The coded representation can correlate to previously stored information as retained at a receiving unit. Upon receiving the coded representation, the receiving unit can use it to access a specific item of previously stored information and then use that information. For example, a previously stored text message can be displayed and/or special annunciation tones can be used to signify specific events, such as the initiation of an interconnect or dispatch call type prior to actual complete initiation of such a call. In one embodiment, a relative station of transmission as corresponds to the coded representation can also be used to further aid in correlating the coded representation to a specific item of information.