公开(公告)号：AU4963201A

公开(公告)日：2001-10-30

申请号：AU4963201

申请日：2001-03-30

Applicant: MOTOROLA INC

Inventor： LOVE ROBERT T ,  CLASSON BRIAN K ,  GHOSH AMITAVA ,  JALLOUL LOUAY A ,  CUDAK MARK C

IPC: H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04W48/12 ,  H04W72/14 ,  H04Q7/20

Abstract: Separate forward dedicated and shared control channels are provided in a spread-spectrum communication. The forward dedicated control channel is used to communicate persistent control information and point to the shared control channel when further intermittent control information concerning transmission of data to a mobile station needs to be communicated. The use of a dedicated control channel for only necessary persistent control information, while only pointing to a shared control channel when it is needed, affords more efficient utilization of system resources.

公开(公告)号：BR9915856A

公开(公告)日：2001-08-21

申请号：BR9915856

申请日：1999-12-02

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A ,  GROSH AMITAVA ,  CUDAK MARK C

IPC: H04J11/00 ,  H04L1/00 ,  H04B7/00 ,  H04B7/212 ,  H04B7/26 ,  H04L27/30

Abstract: Remote units (113) having large amounts of data to transmit will be dynamically assigned Orthogonal Variable Spreading Factor (OVSF) codes corresponding to higher data rates and remote units (113) with lower amounts of data to be transmitted will be assigned OVSF codes corresponding to lower data rates. Additionally, in an alternate embodiment of the present invention, once system interference becomes greater than a predetermined threshold, the data rate between the base station (100) and remote units (113) in communication with the base station (100) is reduced. The reduction of the data rate between the base station (100) and remote units (113) occurs by changing the current OVSF codes utilized by both the remote units (113) and the base station (100).

公开(公告)号：CA2391634A1

公开(公告)日：2001-05-25

申请号：CA2391634

申请日：2000-11-02

Applicant: MOTOROLA INC

Inventor： CUDAK MARK C ,  CLASSON BRIAN K ,  JALLOUL LOUAY ,  GHOSH AMITAVA

IPC: H04L1/00 ,  H04L1/08 ,  H04L1/18 ,  H04Q7/38 ,  H04B7/212

Abstract: A method in a communication system (100) includes transmitting from a source user (101) a first data packet (111) over a first time frame (121) having a finite time period (131), transmitting from source user (101) a second data packet (112) over a second time frame (122) immediately subsequent to first time frame (121), detecting an acknowledgement of acceptable reception of da ta packet associated with either first or said second data packets (111 and 112 ), repeating transmission of first and second data packets (111 and 112) in a sequence of first and second time frames (121 and 122) in a time frame sequence (190) until the detection.

公开(公告)号：AU7358494A

公开(公告)日：1995-03-22

申请号：AU7358494

申请日：1994-07-11

Applicant: MOTOROLA INC

Inventor： CUDAK MARK C ,  NEWBERG DONALD G ,  HIBEN BRADLEY ,  LOGALBO ROBERT D

IPC: H04B1/16 ,  H04L25/06 ,  H04B7/00 ,  H04Q3/02 ,  H04Q9/14

Abstract: In a digital communication system, communication units may reduce power consumption while attempting to detect reception of valid data by sampling and filtering a data stream at a first sampling rate producing a first filtered data stream. When the first filtered data stream indicates potential valid data, the communication unit samples and filters the data stream at a second sampling rate, wherein the second sampling rate is greater than the first sampling rate and consumes more power, producing a second filtered data stream. The communication unit determines whether the data stream contains valid data based on the second filtered data stream.

公开(公告)号：GB2271248A

公开(公告)日：1994-04-06

申请号：GB9316803

申请日：1993-08-12

Applicant: MOTOROLA INC

Inventor： CUDAK MARK C ,  HIBEN BRADLEY M ,  LO GALBO ROBERT D

IPC: H04H20/67 ,  H04H3/00

Abstract: A simulcast radio transmission system (250) transmits message signals including selective call tones, originating from a message source (202). The system includes a controller (204) which is connected to a plurality of remote transmitter sites (208, 210) by interconnect links (224, 226), each having bounded propagation time delay characteristics. The simulcast system (250) employs phase numbers associated with the starting phase of the selective call tones to allow accurate reconstruction of the selective call tones. The controller (204) then combines (508) the message signals (318) with the launch time and the phase number to establish a message bundle and sends the message bundle to the transmitters (208, 210), via interconnect links (224, 226). The controller (204) and each of the remote transmitters (208, 210) receive a precision reference signal (from a GPS Satellite 201).

公开(公告)号：BR9107239A

公开(公告)日：1994-04-05

申请号：BR9107239

申请日：1991-12-16

Applicant: MOTOROLA INC

Inventor： WILSON ALAN L ,  CUDAK MARK C ,  HIBEN BRADLEY M ,  ZIOLKO ERIC F ,  JASPER STEVEN C

IPC: H04L27/10 ,  H04L27/00 ,  H04L27/18

Abstract: A transceiver compatible with both wide channel constant envelope 4 level FSK FM modulation and narrow channel pi /4 differential QPSK linear modulation allows compatible interaction between modified constant envelope and non-constant envelope transmitters. All Nyquist filtering occurs in the transmitters, and none in the receiver.

公开(公告)号：MX9102718A

公开(公告)日：1992-06-01

申请号：MX9102718

申请日：1991-12-19

Applicant: MOTOROLA INC

Inventor： WILSON ALAN L ,  CUDAK MARK C ,  HIBEN BRADLEY M ,  ZIOLKO ERIC F ,  JASPER STEVEN C

IPC: H04L27/00 ,  H04L27/10 ,  H04L27/18 ,  H04H3/00

Abstract: A transceiver compatible with both wide channel constant envelope 4 level FSK FM modulation and narrow channel pi /4 differential QPSK linear modulation allows compatible interaction between modified constant envelope and non-constant envelope transmitters. All Nyquist filtering occurs in the transmitters, and none in the receiver.

公开(公告)号：EP1609258A4

公开(公告)日：2009-03-11

申请号：EP04719828

申请日：2004-03-11

Applicant: MOTOROLA INC

Inventor： BAUM KEVIN L ,  CLASSON BRIAN K ,  CUDAK MARK C ,  NANGIA VIJAY

IPC: H04L12/56 ,  H04W16/10 ,  H04W72/12 ,  H04J3/00

CPC classification number: H04W72/082 ,  H04L5/0037 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/023 ,  H04W72/1257

Abstract: A downlink frame (401) is divided in to similar sized resource blocks (403, 405, 407) with each co-channel sector scheduled to transmit from the beginning of its respective assigned resource block. Transmissions to remote units within the particular sector will occur only within the particular resource block, up to a point where all N resource units have been utilized. Beyond that point, additional transmissions are scheduled to be transmitted at the end of the resource blocks assigned to the other sectors.

公开(公告)号：EP1277358A4

公开(公告)日：2005-10-26

申请号：EP01922879

申请日：2001-03-30

Applicant: MOTOROLA INC

Inventor： LOVE ROBERT T ,  CLASSON BRIAN K ,  GHOSH AMITAVA ,  JALLOUL LOUAY A ,  CUDAK MARK C

IPC: H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/18 ,  H04W48/12 ,  H04W72/14 ,  H04Q7/20 ,  H04Q7/38

CPC classification number: H04W48/12 ,  H04B7/2637 ,  H04J13/0048 ,  H04J13/18 ,  H04W72/14

Abstract: Separate forward dedicated and shared control channels (17, 18) are provided in a spread-spectrum communication. The forward dedicated control channel (18) is used to communicate persistent control information and point to the shared control channel (17) when further intermittent control information concerning transmission of data to a mobile station (14) needs to be communicated. The use of a dedicated control channel for only necessary persistent control information, while only pointing to a shared control channel when it is needed, affords more efficient utilization of system resources.

公开(公告)号：EP1135867A4

公开(公告)日：2003-02-12

申请号：EP99964050

申请日：1999-12-02

Applicant: MOTOROLA INC

Inventor： FELIX KENNETH A ,  CUDAK MARK C ,  GHOSH AMITAVA

IPC: H04J11/00 ,  H04L1/00 ,  H04B7/00 ,  H04B7/212 ,  H04B7/26 ,  H04L27/30

CPC classification number: H04J13/20 ,  H04J13/0044 ,  H04L1/0002

Abstract: Remote units (113) having large amounts of data to transmit will be dynamically assigned Orthogonal Variable Spreading Factor (OVSF) codes corresponding to higher data rates and remote units (113) with lower amounts of data to be transmitted will be assigned OVSF codes corresponding to lower data rates. Additionally, in an alternate embodiment of the present invention, once system interference becomes greater than a predetermined threshold, the data rate between the base station (100) and remote units (113) in communication with the base station (100) is reduced. The reduction of the data rate between the base station (100) and remote units (113) occurs by changing the current OVSF codes utilized by both the remote units (113) and the base station (100).