公开(公告)号：AU2009201330A1

公开(公告)日：2009-04-30

申请号：AU2009201330

申请日：2009-04-03

Applicant: QUALCOMM INC

Inventor： GURELLI MEHMENT I ,  MOHANTY BIBHU ,  ESTEVES EDUARDO A S

IPC: H04L29/08 ,  H04B7/26 ,  H04L1/00 ,  H04L1/02 ,  H04L1/12 ,  H04L1/16 ,  H04L1/18

Abstract: A system (100) and various methods and apparatus for efficient communications of data across various protocol layers are disclosed. A control and transceiver system (1400) configured for determining a data rate control (DRC) value and for transmission a maximum number of time slots allowed for transmission of a physical layer packet of data (510). After detecting a normal termination of transmission, the decoding thresholds (401, 402) are adjusted for decoding a positive acknowledgment message, and repeating decoding of acknowledgement channel (340) with the adjusted thresholds (401, 402). Retransmitting the physical layer packet of data at least one more time after based on whether the repeat of decoding of the acknowledgment channel (340) produces a negative acknowledgment message. The retransmission may be conditioned upon a throughput level of communications between the base station and the mobile station.

公开(公告)号：BR0110254A

公开(公告)日：2006-02-07

申请号：BR0110254

申请日：2001-04-18

Applicant: QUALCOMM INC

Inventor： SINDHUSHAYANA NAGABHUSHANA T ,  ATTAR RASHID A ,  ESTEVES EDUARDO A S

IPC: H04J13/04 ,  H04L1/00

Abstract: A method and an apparatus for rate control in a high data rate (HDR) communication system are disclosed. An exemplary HDR communication system defines a set of data rates, at which an access point (AP) may send data packets to an access terminal (AT). The data rate is selected to maintain targeted packet error rate (PER). The AT's open loop algorithm measures received signal to interference and noise ratio (SINR) at regular intervals, and uses the information to predict an average SINR over the next packet duration. The AT's closed loop algorithm measures a packet error rate (PER) of the received signal, and uses the PER to calculate a closed loop correction factor. The loop correction factor is added to the SINR value predicted by the open loop, resulting in an adjusted SINR.

公开(公告)号：BR0110002A

公开(公告)日：2006-02-07

申请号：BR0110002

申请日：2001-04-13

Applicant: QUALCOMM INC

Inventor： JALALI AHMAD ,  ESTEVES EDUARDO A S ,  SINDHUSHAYANA NAGABHUSHANA T ,  BLACK PETER J ,  ATTAR RASHID A

IPC: H04L1/16 ,  H04L1/18 ,  H04Q7/38

Abstract: A method for wireless communication, comprising: receiving data in multiple forward link timeslots; determining a quality metric of the received data; requesting retransmission of the data via a first request scheme if the quality metric indicates the data has not been received correctly; and if retransmission is requested and the data is not received correctly, requesting retransmission of the data via a second request scheme.

公开(公告)号：AU2001263081B2

公开(公告)日：2005-10-20

申请号：AU2001263081

申请日：2001-05-11

Applicant: QUALCOMM INC

Inventor： ESTEVES EDUARDO A S ,  ATTAR RASHID A ,  SINDHUSHAYANA NAGABHUSHANA T

IPC: H04W28/18 ,  H04L12/56 ,  H04L012/56 ,  H04Q007/30 ,  H04Q007/22

Abstract: In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.

公开(公告)号：NO20033063L

公开(公告)日：2003-09-04

申请号：NO20033063

申请日：2003-07-04

Applicant: QUALCOMM INC

Inventor： WHEATLEY III CHARLES E ,  ATTAR RASHID A ,  ESTEVES EDUARDO A S

IPC: H04B7/00 ,  H04B7/005 ,  H04B7/26

Abstract: In a method for packet data transmission from at least one Access Point to an Access Terminal, data request messages are received from a plurality of Access Terminals. A transmission of data from the Access Terminal having the highest ratio of requested data rate to average served rate is scheduled, and an Access Point transmits data at a randomly varying transmit power, or at a transmit power in synchronism with neighbouring Access Points, in accordance with the data request message.

公开(公告)号：MXPA02011181A

公开(公告)日：2003-04-25

申请号：MXPA02011181

申请日：2001-05-11

Applicant: QUALCOMM INC

Inventor： ESTEVES EDUARDO A S

IPC: H04L12/56 ,  H04W28/18

Abstract: En un sistema de comunicacion de alta velocidad de datos que tiene la capacidad de transmision de velocidad variable, se puede ajustar el control de velocidad de bucle abierto con un control de velocidad de bucle cerrado para elevar al maximo el rendimiento; un punto de acceso genera paquetes de ranuras multiples interpoladas que permiten que una terminal de acceso transmita mensajes indicadores al punto de acceso de acuerdo con los datos recientemente recibidos portados dentro de las ranuras de los paquetes de ranuras multiples.

公开(公告)号：CA2433939A1

公开(公告)日：2002-07-11

申请号：CA2433939

申请日：2001-12-27

Applicant: QUALCOMM INC

Inventor： WHEATLEY CHARLES E III ,  ATTAR RASHID A ,  ESTEVES EDUARDO A S

IPC: H04B7/00 ,  H04B7/005 ,  H04B7/26

Abstract: In a data communication system capable of variable rate transmission, the da ta rate is determined by the largest C/I measurement of the forward link signal s as measured at the Access Terminal (6). In one embodiment, the date transmission is scheduled based on an Access Terminal (6) initiated forward power control, which reduces forward link rate quantization loss due to exce ss transmit power. The Access Terminal (6) reports to the Access Point (4) the excess C/I estimate for the selected rate. The Access Point (4) then reduces its transmit power by an appropriate amount when serving that Access Termina l (6). In another embodiment, the data transmission is scheduled based on an Access Point (4) initiated forward power control. The Access Point (4) varie s its transmit power over time either randomly or in synchronism with neighboring Access Point (4) in the communication system, which enables an increase in the throughput achieved by users that receive a significant amou nt of interference.

公开(公告)号：CA2408619A1

公开(公告)日：2001-11-22

申请号：CA2408619

申请日：2001-05-11

Applicant: QUALCOMM INC

Inventor： ATTAR RASHID A ,  SINDHUSHAYANA NAGABHUSHANA T ,  ESTEVES EDUARDO A S

IPC: H04W28/18 ,  H04L12/56 ,  H04Q7/22 ,  H04Q7/30

Abstract: In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.

公开(公告)号：AU1830400A

公开(公告)日：2000-06-13

申请号：AU1830400

申请日：1999-11-23

Applicant: QUALCOMM INC

Inventor： BLACK PETER J ,  ESTEVES EDUARDO A S

IPC: H04B7/005 ,  H04B7/26 ,  H04B7/00

Abstract: A method (700) and apparatus for controlling the transmit power allocated to an information signal transmitted from a mobile station is disclosed. A received power control signal value is determined (720) from a power control information signal received at the mobile station. The received power control signal value is compared with a first and second threshold (730, 750). The transmit power of signals sent from the mobile station to a base station on the reverse link is increased if the received power control signal value is greater than the first threshold (740), or decreased if the received power control signal value is less than the second threshold (760).

公开(公告)号：ES2396196T3

公开(公告)日：2013-02-19

申请号：ES10174185

申请日：2001-05-11

Applicant: QUALCOMM INC

Inventor： ESTEVES EDUARDO A S ,  ATTAR RASHID AHMED AKBAR ,  SINDHUSHAYANA NAGABHUSHANA T

IPC: H04W28/18 ,  H04L12/56

Abstract: Un procedimiento para aumentar la tasa de transferencia de datos de una red de comunicación, quecomprende las etapas de: recibir en un terminal de acceso (701) una pluralidad de ranuras de datos y una pluralidad de ranuras huecostransmitidas por un punto de acceso (700), en donde la pluralidad de ranuras de datos están intercaladas con lapluralidad de ranuras huecas para formar un paquete de múltiples ranuras ( 100, 200, 300, 400, 500);detectar el paquete (100, 200, 300, 400, 500) en el terminal de acceso (701); y transmitir desde el terminal de acceso al punto de acceso, durante un período asociado con uno de lasranuras huecas en el terminal de acceso, un mensaje indicador para su uso por el punto de acceso para determinarun estado de recepción del paquete en base a la comunicación previa entre el punto de acceso y el terminal deacceso.