公开(公告)号：PT1733486E

公开(公告)日：2015-04-07

申请号：PT05728334

申请日：2005-03-15

Applicant: QUALCOMM INC

Inventor： HOWARD STEVEN J ,  WALTON JAY RODNEY ,  WALLACE MARK S

IPC: H04J99/00 ,  H04B7/06 ,  H04L25/03 ,  H04L27/26

公开(公告)号：CA2753322C

公开(公告)日：2014-12-09

申请号：CA2753322

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： WALTON JAY RODNEY ,  NANDA SANJIV

IPC: H04W74/02 ,  H04B1/76 ,  H04B7/005 ,  H04L12/28 ,  H04L12/56 ,  H04L12/66 ,  H04L29/06 ,  H04L29/08 ,  H04W24/00 ,  H04W52/38 ,  H04W72/04 ,  H04W72/12

Abstract: Techniques for MAC processing for efficient use of high throughput systems that may be backward compatible with various types of legacy systems are disclosed. In one aspect, a data frame is formed comprising a common portion for transmission in a format receivable by various stations, such as access points and remote stations. The data frame also comprises a dedicated portion, formatted for transmission to a specified remote station. In another aspect, the common portion is unsteered, and the dedicated portion is steered. In another aspect, an access point schedules an allocation in response to a data indication included in a common portion of a data frame transmitted from one remote station to another. In another aspect, a first station transmits a reference to a second station, which measures the reference and generates feedback therefrom.

公开(公告)号：ES2478519T3

公开(公告)日：2014-07-22

申请号：ES12153312

申请日：2005-07-07

Applicant: QUALCOMM INC

Inventor： WALTON JAY RODNEY ,  WALLACE MARK S

IPC: H04L25/02 ,  H04B7/04 ,  H04J99/00 ,  H04L1/00 ,  H04L1/06 ,  H04L27/26

Abstract: Un procedimiento (300) de transmisión de pilotos en un sistema de comunicación de múltiples salidas - múltiples entradas, MIMO, que comprende: transmitir (310) en cada unidad de datos de protocolo, PDU, de una capa física un primer 5 piloto adecuado para derivar una estimación de una respuesta de un canal MIMO entre una entidad transmisora y una entidad receptora; transmitir selectivamente (322) en cada PDU un piloto adicional adecuado para derivar una estimación mejorada de la respuesta del canal MIMO; y transmitir (320) señalización para indicar que el piloto adicional se está transmitiendo; en donde el piloto adicional es enviado en un primer conjunto de subbandas de frecuencia en un periodo de símbolo seleccionado para la transmisión de pilotos adicionales, y en el que la señalización se envía al mismo tiempo que el piloto adicional por un segundo conjunto de subbandas de frecuencia en el período de símbolo.

公开(公告)号：CA2777890C

公开(公告)日：2014-03-04

申请号：CA2777890

申请日：2007-05-22

Applicant: QUALCOMM INC

Inventor： WALLACE MARK S ,  KETCHUM JOHN W ,  WALTON JAY RODNEY ,  HOWARD STEVEN J

IPC: H04L7/02 ,  H04W56/00 ,  H04W80/02

Abstract: Techniques for performing acquisition of packets are described. First detection values may be determined based on a first plurality of samples, e.g., by performing delay-multiply-integrate on the samples. Power values may be determined based on the first plurality of samples, e.g., by performing multiply-integrate on the samples. The first detection values may be averaged to obtain average detection values. The power values may also be averaged to obtain average power values. Whether a packet is presence may be determined based on the average detection values and the average power values. Second detection values may be determined based on a second plurality of samples. The start of the packet may be determined based on the first and second detection values. A third detection value may be determined based on a third plurality of samples. Frequency error of the packet may be estimated based on the first and third detection values.

公开(公告)号：ES2439273T3

公开(公告)日：2014-01-22

申请号：ES10006913

申请日：2006-10-05

Applicant: QUALCOMM INC

Inventor： KUMAR RAVI ,  WALTON JAY RODNEY ,  FU QIANG ,  DRAVIDA SUBRAHMANYAM

IPC: H04W48/16 ,  H04L29/06 ,  H04W8/00 ,  H04W12/04 ,  H04W12/06

Abstract: Un primer dispositivo inalámbrico (130c) que comprende: al menos un procesador (1740) configurado para enviar una respuesta a un segundo dispositivo inalámbrico (130d) si unidentificador de un par individual, extraído de una trama recibida desde el segundo dispositivo inalámbrico (130d) decomunicación, está incluido en una lista de identificadores de igual a igual, PTP, en el cual la lista PTP comprende laidentificación de pares con los cuales el primer dispositivo inalámbrico (130c) espera estar en comunicación, en el cual lalista PTP no comprende todos los pares disponibles para la comunicación con los mismos, dentro de una red ad-hoc; y una memoria (1742) acoplada con dicho al menos un procesador (1740).

公开(公告)号：CA2542380C

公开(公告)日：2013-05-21

申请号：CA2542380

申请日：2004-10-15

Applicant: QUALCOMM INC

Inventor： NANDA SANJIV ,  MEYLAN ARNAUD ,  WALTON JAY RODNEY

IPC: H04W74/04 ,  H04B7/005 ,  H04J3/00 ,  H04L12/56 ,  H04L29/06 ,  H04W52/38

Abstract: Embodiments disclosed herein for MAC processing for efficient use of high throughput systems and that may be backward compatible with various types of legacy systems. In one aspect, a data transmission structure comprises a consolidated poll and one or more frames transmitted in accordance with the consolidated poll. In another aspect, a Time Division Duplexing (TDD) data transmission structure comprises a pilot, a consolidated poll, and zero or more access point to remote station frames in accordance with the consolidated poll. In one aspect, frames are transmitted sequentially with no or substantially reduced interframe spacing. In another aspect, a guard interframe spacing may be introduced between frames transmitted from different sources, or with substantially different power levels. In another aspect, a single preamble is transmitted in association with one or more frames. In another aspect, a block acknowledgement is transmitted subsequent to the transmission of one or more sequential frames.

公开(公告)号：ES2399401T3

公开(公告)日：2013-04-01

申请号：ES10004522

申请日：2006-10-05

Applicant: QUALCOMM INC

Inventor： KUMAR RAVI ,  WALTON JAY RODNEY ,  FU QIANG ,  DRAVIDA SUBRAHMANYAM

IPC: H04W12/06 ,  H04L29/06 ,  H04W8/00 ,  H04W48/16

Abstract: Un procedimiento que comprende: realizar, con un primer dispositivo inalámbrico (130c), el descubrimiento de un segundo dispositivo inalámbrico(130d), en donde el primer dispositivo inalámbrico (103c) está dotado de una lista de par a par, PTP, y en dondeuna clave pre-compartida, PSK, está dada de alta para cada dispositivo inalámbrico incluido en la lista PTP; autenticar al segundo dispositivo inalámbrico (130d) después del descubrimiento, en donde la clave precompartida,PSK, dada de alta para el segundo dispositivo inalámbrico (130c) en la lista PTP del primer dispositivoinalámbrico (130c) es usada para autenticar al segundo dispositivo inalámbrico (130d); formar una red inalámbrica ad hoc para la comunicación de par a par entre el primer dispositivo inalámbrico (130c)y el segundo dispositivo inalámbrico (130d); generar una clave de sesión en base a la clave pre-compartida, PSK, dada de alta para el segundo dispositivoinalámbrico (130c) en la lista PTP del primer dispositivo inalámbrico (130c), o a un certificado dado de alta en elprimer dispositivo inalámbrico (130c), y usar la clave de sesión para la comunicación de par a par entre el primerdispositivo inalámbrico (130c) y el segundo dispositivo inalámbrico (130d); y comunicarse de par a par con el segundo dispositivo inalámbrico (130d) mediante la red inalámbrica ad hoc.

公开(公告)号：CA2614463C

公开(公告)日：2012-09-18

申请号：CA2614463

申请日：2006-07-06

Applicant: QUALCOMM INC

Inventor： DRAVIDA SUBRAHMANYAM ,  WALTON JAY RODNEY ,  NANDA SANJIV ,  SURINENI SHRAVAN K

IPC: H04W60/00 ,  H04W12/06 ,  H04W48/20 ,  H04W84/04 ,  H04W84/12 ,  H04W84/18 ,  H04W88/08 ,  H04W92/02

Abstract: Embodiments describe registration in a wireless communication system. A method includes wirelessly transmitting over a WWAN a first registration message from a mobile device, wirelessly transmitting through the WWAN a second registration message to a WLAN access point and receiving at the mobile device access through the WLAN access point. According to another embodiment is a method for constructing a self-configuring ad-hoc network. The method can include receiving a GPS coordinate from a WWAN channel node at a management system and creating an initial topography based at least in part on the GPS coordinate to achieve a network connectivity with diverse routes between a plurality of nodes.

公开(公告)号：AU2011213737B2

公开(公告)日：2012-07-19

申请号：AU2011213737

申请日：2011-08-18

Applicant: QUALCOMM INC

Inventor： WALLACE MARK S ,  WALTON JAY RODNEY ,  HOWARD STEVEN J ,  KETCHUM JOHN W

IPC: H04L27/26 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/00 ,  H04L1/06 ,  H04L1/16 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H04L25/03 ,  H04W28/20 ,  H04W52/50

Abstract: System traffic may be arranged into different categories (e.g., control data, user data, and pilot data). For each category, one or more OFDM symbols of the proper sizes may be selected for use based on the expected payload size for the traffic in that category. For example, control data may be transmitted using OFDM symbols of a first size, user data may be transmitted using OFDM symbols of the first size and second size, and pilot data may be transmitted using OFDM symbols of a third size or the first size. In one exemplary design, a small OFDM symbol is utilized for pilot and for transport channels used to send control data, and a large OFDM symbol and the small OFDM symbol are utilized for transport channels used to send user data. -- -- - -- , T) CLi "' - CcC D Lj LL cmC) C 0- a co - (0 U) ( C, LL CD 0F ) L 0 --0-------- U) U)G CD)

公开(公告)号：CA2501921C

公开(公告)日：2012-07-17

申请号：CA2501921

申请日：2003-10-24

Applicant: QUALCOMM INC

Inventor： WALTON JAY RODNEY ,  KETCHUM JOHN W ,  WALLACE MARK ,  HOWARD STEVEN J

IPC: H04J99/00 ,  H04L1/00 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04B7/08 ,  H04L1/06 ,  H04L1/08 ,  H04L1/16 ,  H04L12/28 ,  H04L12/56 ,  H04L25/02 ,  H04L25/03 ,  H04L27/26

Abstract: A MIMO system supports multiple spatial multiplexing modes for improved performance and greater flexibility. These modes may include (1) a single-user steered mode that transmits multiple data streams on orthogonal spatial channels to a single receiver, (2) a single-user non-steered mode that transmits multiple data streams from multiple antennas to a single receiver without spatial processing at a transmitter, (3) a multi-user steered mode that transmits multiple data streams simultaneously to multiple receivers with spatial processing at a transmitter, and (4) a multi-user non-steered mode that transmits multiple data streams from multiple antennas (co-located or non co-located) without spatial processing at the transmitter(s) to receiver(s) having multiple antennas. For each set of user terminal(s) selected for data transmission on the downlink and/or uplink, a spatial multiplexing mode is selected for the user terminal set from among the multiple spatial multiplexing modes supported by the system.