公开(公告)号：BRPI0517836A

公开(公告)日：2008-10-21

申请号：BRPI0517836

申请日：2005-10-21

Applicant: MOTOROLA INC

Inventor： CLASSON BRIAN K ,  CUDAK MARK C

IPC: H03M13/00

Abstract: A method and apparatus for performing H-ARQ transmission is described herein. Bits received on a first transmission are stored and combined with the bits received on later transmissions thereby increasing the likelihood of a correct decoding on later transmissions. Additionally, a plurality of coding schemes (e.g., Convolutional Codes, Block Turbo Codes, Convolutional Turbo Codes, Low Density Party Check Codes, . . . , etc.) are utilized, with an information element being reserved to signal what form of H-ARQ is being utilized.

公开(公告)号：CA2519643C

公开(公告)日：2008-04-15

申请号：CA2519643

申请日：2004-03-11

Applicant: MOTOROLA INC

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

IPC: H04B15/00 ,  H04B7/208 ,  H04J3/10 ,  H04L12/56 ,  H04W16/10 ,  H04W72/12

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 beginni ng 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：CA2391634C

公开(公告)日：2007-09-11

申请号：CA2391634

申请日：2000-11-02

Applicant: MOTOROLA INC

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

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

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), transmittin g 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 data 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：MX2007005753A

公开(公告)日：2007-07-16

申请号：MX2007005753

申请日：2005-10-21

Applicant: MOTOROLA INC

Inventor： CUDAK MARK C ,  CLASSON BRIAN K

IPC: H03M13/00

Abstract: Se describe aqui un metodo y un aparato para efectuar una transmision H-ARQ. Los bits recibidos en una primera transmision son almacenados y combinados con los bits recibidos en transmisiones posteriores, incrementando por lo tanto la probabilidad de una descodificacion correcta sobre las ultimas transmisiones. Adicionalmente, se utiliza una pluralidad de esquemas de codificacion (por ejemplo, Codigos Convolucionales, Turbo Codigos de Bloques, Turbo Codigos Convolucionales, Codigos de Verificacion de Parte de Baja Densidad,..., etc.), con un elemento de informacion que esta reservado para senalar que forma de H-ARQ esta sendo utilizada.

公开(公告)号：CA2624655A1

公开(公告)日：2007-04-12

申请号：CA2624655

申请日：2006-09-07

Applicant: MOTOROLA INC

Inventor： BATARIERE MICKAEL D ,  CLASSON BRIAN K ,  CUDAK MARK C ,  SARTORI PHILIPPE J

IPC: H04B7/212

Abstract: A method and apparatus for control channel transmission and reception is provided herein. In particular, the use of a partitioned and structured control channel is provided that leverages the benefits of common control while maintaining favorable aspects of dedicated control. During operation, control information is distributed over a number of partitions (201). Each Pi is encoded (607) with monotonically non-increasing reliability level. Control information for a given remote unit can be distributed on one or several partitions, from P1 to Pk, where Pk is encoded with the lowest reliability level that can be decodable by the remote unit at an acceptable error rate.

公开(公告)号：CA2391623C

公开(公告)日：2006-01-03

申请号：CA2391623

申请日：2000-11-02

Applicant: MOTOROLA INC

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

IPC: H03M13/29 ,  H03M13/35 ,  H04L1/00 ,  H04L1/02 ,  H04L1/18 ,  H04L1/22 ,  H04L29/08

Abstract: A generic structure of Hybrid ARQ using Turbo Codes is provided which requires the function of channel coding, redundancy selection, buffering and maximum-ratio diversity combining, channel decoding, error detection, and sending back an acknowledgement to the transmitter (Fig.3). The functions of channel coding and redundancy selection (Fig.1) are performed at the transmitter while the remaining functions are performed at the receiver. The initial code rate can be explicitly communicated to the receiver or blindly detected.

公开(公告)号：CA2564395A1

公开(公告)日：2005-12-01

申请号：CA2564395

申请日：2005-05-11

Applicant: MOTOROLA INC

Inventor： CLASSON BRIAN K ,  BLANKENSHIP YUFEI

IPC: H03M13/11 ,  G06F11/00 ,  H03M13/00 ,  H03M13/35

Abstract: A method for interlacing columns of different weights is proposed for a pari ty- check matrix H (Figure 2) that results in good performing LDPC codes shorten ed or unshortened. Matrix H comprises a section H1 and a section H2, and wherei n H1 has a plurality of different column weights and comprises a plurality of sub-matrices where columns of at least one weight are substantially interlac ed between the sub-matrices.

公开(公告)号：CA2579568A1

公开(公告)日：2005-11-17

申请号：CA2579568

申请日：2005-03-18

Applicant: MOTOROLA INC

Inventor： SARTORI PHILIPPE J ,  BAUM KEVIN L ,  CLASSON BRIAN K

IPC: H04M1/00 ,  H04L5/02 ,  H04L5/14 ,  H04W72/08 ,  H04W72/10

公开(公告)号：AU2002361777A1

公开(公告)日：2003-07-24

申请号：AU2002361777

申请日：2002-12-18

Applicant: MOTOROLA INC

Inventor： SARTORI PHILIPPE J ,  NANGIA VIJAY ,  ZHUANG XIANGYANG ,  BAUM KEVIN L ,  CLASSON BRIAN K

IPC: H04L25/02 ,  H04L27/28

Abstract: Mobile units in a multicarrier, multidimensional communications system can assess their own channel coherence time attributes (base stations can also access such dynamics for mobile units as well). This information is utilized (either by the mobile unit itself or by an infrastructure component such as a base site) to determine a level of trustworthiness for other channel quality data as might be measured by the mobile unit. Different modulation and coding schemes, along with responsive frequency and time diversity resource allocations, are adaptively selected as a function of this level of trustworthiness.

公开(公告)号：BR0104050A

公开(公告)日：2001-12-18

申请号：BR0104050

申请日：2001-01-05

Applicant: MOTOROLA INC

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

IPC: H04L1/00 ,  H04W16/14 ,  H04W28/22 ,  H04B1/00

Abstract: A mobile station (110) selects an initial data rate for communication between base station (107) and mobile station (110). Mobile station (110) communicates the selected initial data rate to base station (107) through uplink (112). Base station (107) determines a difference level of interference condition experienced by mobile station (107) between a time when the initial data rate was selected by mobile station (110) and a time when base station (107) prepares to communicate to mobile station (110). Base station (107) selects a final data rate for transmission from base station (107) to mobile station (110) based on the determined difference level of interference condition. As such, the initial data rate may be modified to the final data rate while maximizing the down link capacity.