公开(公告)号：CA2564395C

公开(公告)日：2009-07-07

申请号：CA2564395

申请日：2005-05-11

Applicant: MOTOROLA INC

Inventor： BLANKENSHIP YUFEI ,  CLASSON BRIAN K

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：AR063104A1

公开(公告)日：2008-12-30

申请号：ARP070104366

申请日：2007-10-02

Applicant: MOTOROLA INC

Inventor： NIMBALKER AJIT ,  BLANKENSHIP YUFEI W ,  CLASSON BRIAN K

IPC: H03M13/00

Abstract: En la presente, se proveen un método y un aparato para seleccionar tamanos de entrelazadores para turbo codigos. Durante la operacion se recibe el bloque de informacion de tamano K. Se determina un tamano de entrelazador K' que está relacionado con Kö, en donde Kö es de un conjunto de tamanos; en donde el conjunto de tamanos comprende Kö = ap x f, pmin 1, pmáx > pmin, pmin>1. El bloque de informacion de tamano K es arrastrado hacia un bloque de entrada de tamano K' usando bits de relleno, si se requiere. La codificacion se realiza usando el bloque de entrada original y el bloque de entrada entrelazado para obtener un bloque de codigo usando un turbo codificador. El bloque de codigo es transmitido a través del canal.

公开(公告)号：BRPI0514179A

公开(公告)日：2008-06-03

申请号：BRPI0514179

申请日：2005-08-03

Applicant: MOTOROLA INC

Inventor： BLANKENSHIP YUFEI W ,  CLASSON BRIAN K ,  BLANKENSHIP T KEITH ,  DESAI VIPUL A

IPC: H03M13/00 ,  G06F11/00

Abstract: A structured parity-check matrix H is proposed, wherein H is an expansion of a base matrix H b and wherein H b comprises a section H b1 and a section H b2 , and wherein H b2 comprises a first part comprising a column h b having an odd weight greater than 2, and a second part comprising matrix elements for row i, column j equal to 1 for i = j , 1 for i = j+1, and 0 elsewhere. The expansion of the base matrix H b uses identical submatrices for 1s in each column of the second part H ' b2 , and the expansion uses paired submatrices for an even number of 1s in h b .

公开(公告)号：MX2007011795A

公开(公告)日：2007-12-05

申请号：MX2007011795

申请日：2006-03-27

Applicant: MOTOROLA INC

Inventor： BAUM KEVIN L ,  GHOSH AMITAVA ,  LOVE ROBERT T ,  STEWART KENNETH A ,  CLASSON BRIAN K ,  NANGIA VIJAY

IPC: H04J3/16

Abstract: Durante operacion, los cuadros de radio son divididos en una pluralidad de sub-cuadros; los datos son transmitidos en los cuadros de radio dentro de una pluralidad de sub-cuadros, y la duracion de cuadro es seleccionada de entre dos o mas posibles duraciones de cuadro.

公开(公告)号：MX2007011789A

公开(公告)日：2007-12-05

申请号：MX2007011789

申请日：2006-03-27

Applicant: MOTOROLA INC

Inventor： BAUM KEVIN L ,  GHOSH AMITAVA ,  LOVE ROBERT T ,  STEWART KENNETH A ,  CLASSON BRIAN K ,  NANGIA VIJAY

IPC: H04B7/212

Abstract: Durante operacion, los cuadros de radio son divididos en una pluralidad de sub-cuadros (301); los datos son transmitidos en los cuadros de radio dentro de una pluralidad de sub-cuadros, y la duracion de cuadro es seleccionada de entre dos o mas posibles duraciones de cuadro (701, 702, 703).

公开(公告)号：DE60127356T2

公开(公告)日：2007-07-12

申请号：DE60127356

申请日：2001-01-05

Applicant: MOTOROLA INC

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

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

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.

公开(公告)号：DE60127356D1

公开(公告)日：2007-05-03

申请号：DE60127356

申请日：2001-01-05

Applicant: MOTOROLA INC

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

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

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.

公开(公告)号：BRPI0414052A

公开(公告)日：2006-10-24

申请号：BRPI0414052

申请日：2004-07-27

Applicant: MOTOROLA INC

Inventor： SARTORI PHILIPPE J ,  BAUM KEVIN L ,  CLASSON BRIAN K ,  CUDAK MARK C ,  NANGIA VIJAY ,  VISOTSKY EUGENE

IPC: H04B7/26 ,  H04L12/56 ,  H04W16/26 ,  H04W52/00 ,  H04W72/04 ,  H04W88/04 ,  H04W88/08 ,  H04B7/15

Abstract: Communications sourced by a remote unit ( 14 ) that is already within reception range of a base site ( 10 ) can nevertheless be further facilitated through allocation of one or more relay resources ( 15, 16 ). Such relay resources, properly employed, then serve to effectively increase the quality of service for the facilitated communication. This, in turn, can permit the use of, for example, increased data rates for communications from a relatively low power remote unit.

公开(公告)号：CA2521716A1

公开(公告)日：2004-11-11

申请号：CA2521716

申请日：2004-04-23

Applicant: MOTOROLA INC

Inventor： CUDAK MARK C ,  CLASSON BRIAN K ,  TALUKDAR ANUP

IPC: H04B17/00 ,  H04L1/00 ,  H04L1/18 ,  H04L12/26

Abstract: A base station (101) will request the transmission of quality information fr om a particular remote stations (102, 103) only when data is queued to be transmitted to the remote stations. Once a remote station begins the transmission of channel quality information, the transmission of such information continues until the data transmission is successfully delivered to the remote station. The base station receives the channel quality informatio n and adjusts the modulation and coding of the remote stations accordingly. Where data is transmitted simultaneously to a plurality of remote stations, a set of queues (303) for the multiple remote stations is maintained, and base d on queue status, a channel quality request messages is sent to a sub-set of remote stations with data queued.

公开(公告)号：CA2377227A1

公开(公告)日：2001-10-25

申请号：CA2377227

申请日：2001-03-30

Applicant: MOTOROLA INC

Inventor： JALLOUL LOUAY A ,  CLASSON BRIAN K ,  LOVE ROBERT T ,  GHOSH AMITAVA ,  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 (17, 18) are provided in a spread-spectrum communication. The forward dedicated control channel (1 8) is used to communicate persistent control information and point to the share d control channel (17) when further intermittent control information concernin g 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.