公开(公告)号：BRPI0511811A

公开(公告)日：2007-12-26

申请号：BRPI0511811

申请日：2005-06-03

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY

IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04L29/06 ,  H04W88/10 ,  H04W92/10

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

公开(公告)号：BRPI0511810A

公开(公告)日：2007-12-26

申请号：BRPI0511810

申请日：2005-06-03

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MURALI RAMASWAMY

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/02 ,  H04W88/10 ,  H04W92/10

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

公开(公告)号：AR056731A1

公开(公告)日：2007-10-17

申请号：ARP060104687

申请日：2006-10-26

Applicant: QUALCOMM INC

Inventor： GUPTA RAJARSHI ,  PRAKASH RAJAT ,  SAMPATH ASHWIN ,  JULIAN DAVID JONATHAN ,  HORN GAVIN ,  JAIN NIKHIL ,  STAMOULIS ANASTASIOS

IPC: H04W16/14 ,  H04W28/18 ,  H04Q7/36

Abstract: Se describe sistemas y métodos que facilitan la comunicacion de datos en un entorno de un sistema de comunicacion inalámbrico. De acuerdo con diversos aspectos, un nodo, tal como un punto de acceso o un terminal de acceso, puede determinar un numero de canales a través de los cuales se transmitirá una senal de comunicacion. El nodo puede entonces seleccionar canales basado en si los canales están disponibles o no disponibles, en donde los canales disponibles son seleccionados preferentemente por sobre los canales no disponibles. El nodo puede entonces transmitir una senal a través de al menos uno de los canales seleccionados.

公开(公告)号：AR056160A1

公开(公告)日：2007-09-19

申请号：ARP060104688

申请日：2006-10-26

Applicant: QUALCOMM INC

Inventor： GUPTA RAJARSHI ,  SAMPATH ASHWIN ,  JULIAN DAVID JONATHAN ,  HORN GAVIN ,  STAMOULIS ANASTASIOS ,  JAIN NIKHIL ,  LI HUSHENG ,  PRAKASH RAJAT

IPC: H04W16/14 ,  H04W28/18 ,  H04Q7/36

Abstract: Sistemas y métodos que facilitan las condiciones de evaluacion de nodos (por ejemplo, puntos de acceso, terminales de acceso, etc.) en un entorno de comunicacion inalámbrico para determinar un nivel de desventaja para un nodo dado con respecto a otro nodo. Un primer nodo puede recibir mensajes de utilizacion de recursos (RxRUM) y puede determinar un nivel de desventaja para un nodo que envía el RxRUM. El primer nodo puede entonces comparar su propio nivel de desventajas con el nodo transmisor a fin de permitir una determinacion de un procedimiento de accion apropiado en respuesta al RxRUM.

公开(公告)号：MX2007004312A

公开(公告)日：2007-06-18

申请号：MX2007004312

申请日：2005-10-12

Applicant: QUALCOMM INC

Inventor： MALLADI DURGA ,  STAMOULIS ANASTASIOS ,  DOAN DUNG N

IPC: H04L25/00

Abstract: Se describen tecnicas para realizar la deteccion y decodificacion de datos de manera que represente las subbandas de proteccion. Un receptor obtiene simbolos de piloto recibidos para las subbandas de piloto y simbolos de datos recibidos para subbandas de datos. Los calculos de canal se derivan con base en los simbolos de piloto recibidos con subbandas de piloto con salida cero llenas con ceros. La deteccion de datos se realiza en los simbolos de datos recibidos con los calculos de canal para obtener calculos de simbolo de datos. Se derivan los calculos de ruido y errores de calculo debidos a las subbandas de piloto con salida cero. Despues, las LLRs se calculan con base en los calculos de simbolo de datos, los calculos de datos, y los calculos de ruido y los errores de calculo. Las LLRs se agrupan y decodifican para obtener datos decodificados.

公开(公告)号：CA2624606A1

公开(公告)日：2007-05-03

申请号：CA2624606

申请日：2006-10-20

Applicant: QUALCOMM INC

Inventor： STAMOULIS ANASTASIOS

IPC: H04L12/56

Abstract: Systems and methodologies are described that facilitate determining when and whether to implement a sender-based data packet scheduling mechanism or a receiver-based data packet scheduling mechanism based on one or mode scheduling factors. For example, a sending node and a receiving node may communicate to permit a determination of which node is more capable of performing the scheduling tasks, and a corresponding scheduling technique may be selected and executed. According to an aspect, an amount of data downloading may be compared to an amount of data uploading at each node, and a sender-based scheduling protocol may be performed when the amount of data uploading is greater than the amount of downloading data.

公开(公告)号：CA2597599A1

公开(公告)日：2006-08-17

申请号：CA2597599

申请日：2006-02-13

Applicant: QUALCOMM INC

Inventor： STAMOULIS ANASTASIOS ,  MALLADI DURGA PRASAD

IPC: H04L25/02

Abstract: Techniques for deriving a high quality channel estimate are described. A first channel impulse response estimate (CIRE) having multiple channel taps is derived, e.g., by filtering initial CIREs obtained from a received pilot. A threshold parameter value is selected based on at least one criterion, which may relate to channel profile, operating SNR, number of channel taps, and so on. A second CIRE is derived by zeroing out selected ones of the channel taps in the first CIRE based on the threshold parameter value. The average energy of the channel taps may be determined, a threshold may be derived based on the average energy and the threshold parameter value, and channel taps with energy less than the threshold may be zeroed out. A memory may store threshold parameter values for different operating scenarios, and a stored value may be selected for use based on the current operating scenario.

公开(公告)号：CA2569456A1

公开(公告)日：2005-12-22

申请号：CA2569456

申请日：2005-06-03

Applicant: QUALCOMM INC

Inventor： MANTRAVADI ASHOK ,  MALLADI DURGA P ,  STAMOULIS ANASTASIOS ,  AGRAWAL AVNEESH ,  MURALI RAMASWAMY

IPC: H04L27/26 ,  H04L1/00 ,  H04L5/02 ,  H04W88/10 ,  H04W92/10

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

公开(公告)号：AU2005253595A1

公开(公告)日：2005-12-22

申请号：AU2005253595

申请日：2005-06-03

Applicant: QUALCOMM INC

Inventor： MURALI RAMASWAMY ,  STAMOULIS ANASTASIOS ,  MANTRAVADI ASHOK ,  MALLADI DURGA P ,  AGRAWAL AVNEESH

IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.

公开(公告)号：AU2005253591A1

公开(公告)日：2005-12-22

申请号：AU2005253591

申请日：2005-06-03

Applicant: QUALCOMM INC

Inventor： MANTRAVADI ASHOK ,  MALLADI DURGA P ,  AGRAWAL AVNEESH ,  MURALI RAMASWAMY ,  STAMOULIS ANASTASIOS

IPC: H04L1/00 ,  H04L5/02 ,  H04L27/26 ,  H04W88/10 ,  H04W92/10

Abstract: Frame structures and transmission techniques for a wireless communication system are described. In one frame structure, a super-frame includes multiple outer-frames, and each outer-frame includes multiple frames, and each frame includes multiple time slots. The time slots in each super-frame are allocated for downlink and uplink and for different radio technologies (e.g., W-CDMA and OFDM) based on loading. Each physical channel is allocated at least one time slot in at least one frame of each outer-frame in the super-frame. An OFDM waveform is generated for each downlink OFDM slot and multiplexed onto the slot. A W-CDMA waveform is generated for each downlink W-CDMA slot and multiplexed onto the slot. A modulated signal is generated for the multiplexed W-CDMA and OFDM waveforms and transmitted on the downlink. Each physical channel is transmitted in bursts. The slot allocation and coding and modulation for each physical channel can change for each super-frame.