公开(公告)号：GB2444001B

公开(公告)日：2010-10-27

申请号：GB0804399

申请日：2006-06-30

Applicant: MOTOROLA INC

Inventor： WANG FAN ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT ,  WHINNETT NICK W ,  XIAO WEIMIN

IPC: H04L12/56 ,  H04L1/00

Abstract: A method to provide a nominal best effort data rate based on a Quality of Service (QoS) requirement of a user data connection, the method comprising assigning ( 105 ) a service priority based on the QoS requirement, and assigning ( 110 ) the nominal best effort data rate for the service priority using a predetermined function. Further, it comprises of a method to determine a scheduling priority value for a user data connection by providing a relative fairness. Furthermore, the method comprises a method to satisfy a delay requirement for a delay sensitive data connection through a scheduling.

公开(公告)号：CA2573876C

公开(公告)日：2010-09-28

申请号：CA2573876

申请日：2007-01-12

Applicant: MOTOROLA INC

Inventor： XIAO WEIMIN ,  GHOSH AMITAVA ,  LOVE ROBERT T ,  RATASUK RAPEEPAT ,  SUN YAKUN

IPC: H04W52/14 ,  H04W52/24 ,  H04W52/34 ,  H04W72/04 ,  H04W72/06

Abstract: To address the need for a resource allocation scheme that results in a better tradeoff between cell-edge performance and overall spectral efficiency, a communication system (100) is provided that allocates uplink transmit power to user equipment (UEs) (102, 104) based on a fractional power control scheme (300). In another embodiment, since the cell-edge users are also likely to be power limited, the communication system may implement a minimized uplink transmission bandwidth resource allocation scheme (404, 406, 408, 410, 412, 414) that may work with the fractional power control scheme to achieve a level of performance desired for uplink transmissions in 3GPP (Third Generation Partnership Project) and 3GPP2 Evolution communication systems.

公开(公告)号：AT470332T

公开(公告)日：2010-06-15

申请号：AT04779361

申请日：2004-07-28

Applicant: MOTOROLA INC

Inventor： FABIEN JEAN-AICARD ,  GHOSH AMITAVA ,  RATASUK RAPEEPAT

IPC: H04W52/34 ,  H04B7/005 ,  H04W4/06 ,  H04W52/28 ,  H04W52/32

Abstract: In a mobile telecommunication system ( 10 ), a number of user equipments ( 40-45 ) may receive multimedia broadcast multicast services. The method for power allocation and user assignment for MBMS services determines any number (K) of user equipments which may be served without complete cell area coverage ( 78 ). For more than K user equipments ( 40-45 ) requesting MBMS services, dedicated channels are assigned ( 84 ). For user equipments requesting MBMS service during a broadcast, such user equipment is assigned to the channel (broadcast or dedicated) with the lower power requirement, if power is available. If the user is assigned to the broadcast channel, and power is available, power of the broadcast channel is adjusted ( 108 ). Otherwise, the power of the broadcast channel is increased and no further power is indicated as being available ( 112 ).

公开(公告)号：BRPI0608959A2

公开(公告)日：2010-02-17

申请号：BRPI0608959

申请日：2006-03-27

Applicant: MOTOROLA INC

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

IPC: H04J3/16

公开(公告)号：CA2651254A1

公开(公告)日：2007-11-22

申请号：CA2651254

申请日：2007-03-30

Applicant: MOTOROLA INC

Inventor： GHOSH AMITAVA ,  XIAO WEIMIN ,  RATASUK RAPEEPAT

IPC: H04B7/216

Abstract: A communication system provides downlink acknowledgments corresponding to uplink transmission using hybrid automatic repeat request to multiple users in an Orthogonal Frequency Division Multiplexing communication system, wherein a frequency bandwidth comprises multiple frequency sub-carriers, by spreading each acknowledgment of multiple acknowledgments with a selected spreading sequence of multiple spreading sequences to produce multiple spread acknowledgments, wherein each acknowledgment is intended for a different user of the multiple users, and distributing the multiple spread acknowledgments across the multiple frequency sub-carriers.

公开(公告)号：AT372612T

公开(公告)日：2007-09-15

申请号：AT04741913

申请日：2004-06-28

Applicant: MOTOROLA INC

Inventor： WHINNETT NICHOLAS ,  GHOSH AMITAVA ,  LOVE ROBERT ,  RATASUK RAPEEPAT

IPC: H04B7/005

Abstract: The present invention relates to methods of operation of a communication device and to corresponding communication devices. In particular the invention relates to a first method of operation of a communication device, wherein some pilot bits associated with data bits are transmitted with a power at least partly dependent on the data rate at which the data bits are transmitted. At the base station, power control is carried out only on pilot bits with constant power, whereas channel estimation is carried out on all pilot bits. The invention also relates to a second method of operation of a communication device wherein all pilot bits associated with data bits are transmitted with one of a plurality of powers, at least partly dependent on the data rate at which the data bits are transmitted. At the base station a power control process compares the received signal with a plurality of thresholds, and sends a power control signal to the communication device based on the result of the comparison.

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：BRPI0409974A

公开(公告)日：2006-05-09

申请号：BRPI0409974

申请日：2004-04-27

Applicant: MOTOROLA INC

Inventor： LOVE ROBERT T ,  GHOSH AMITAVA ,  KUCHIBHOTLA RAVI ,  WHINNETT NICHOLAS

IPC: H04B7/005 ,  H04L1/00 ,  H04L1/16 ,  H04L1/18 ,  H04W28/22 ,  H04W52/22 ,  H04Q7/20 ,  H04B7/00

Abstract: A method for rate selection by a communication device for enhanced uplink during soft handoff in a wireless communication system includes a first step of receiving information from a scheduler. This information can include one or more of scheduling, a rate limit, a power margin limit, and a persistence. A next step includes determining a data rate for an enhanced uplink during soft handoff using the information. A next step includes transmitting to a serving base station on an enhanced uplink channel at the data rate determined from the determining step.

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：SE525280C2

公开(公告)日：2005-01-25

申请号：SE9900750

申请日：1999-03-03

Applicant: MOTOROLA INC

Inventor： BUFORD KEVIN A ,  REEDD JOHN D ,  ROZANSKI WALTER J ,  GHOSH AMITAVA

IPC: G01S3/02 ,  G01S5/02 ,  G01S5/04 ,  G01S5/12 ,  G01S19/14 ,  H04W64/00 ,  H04Q7/38