公开(公告)号：DE60236220D1

公开(公告)日：2010-06-10

申请号：DE60236220

申请日：2002-03-04

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  PARIZHSKY VLADIMIR

IPC: H04J11/00 ,  H04L7/033 ,  H04B7/26 ,  H04L5/02 ,  H04L7/00 ,  H04L27/26 ,  H04W56/00

Abstract: Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. Each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.

公开(公告)号：AT466427T

公开(公告)日：2010-05-15

申请号：AT06023559

申请日：2002-03-04

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  PARIZHSKY VLADIMIR

IPC: H04J11/00 ,  H04L7/033 ,  H04B7/26 ,  H04L5/02 ,  H04L7/00 ,  H04L27/26 ,  H04W56/00

Abstract: Symbol timing synchronization in OFDM communication systems where multiple wireless terminals communicate with a single base station is described. Base station transmitter and receiver symbol timing is fixed. Each wireless terminal operates to independently adjust its transmitter timing. Transmitter timing synchronization at the wireless terminal is slaved to the terminal's receiver timing synchronization. Each wireless terminal first corrects its receiver symbol timing based on a signal received from the base station. The wireless terminal then adjusts its transmitter symbol timing as a function of its receiver symbol timing. When the receiver symbol timing is to be advanced or delayed by some amount, the transmitter symbol timing is also advanced or delayed, respectively, by the same, or substantially the same, amount. Symbol timing adjustment can be made by adding or deleting digital samples from the first or last symbol in a dwell.

公开(公告)号：HK1126919A1

公开(公告)日：2009-09-11

申请号：HK09105697

申请日：2009-06-24

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  ANIGSTEIN PABLO ,  PARIZHSKY VLADIMIR ,  SRINIVASAN MURARI ,  TSIRTSIS GEORGE

IPC: H04W20090101 ,  H04W48/10 ,  H04W88/18

Abstract: Methods and apparatus for routing messages between an end node and an access node via another access node are described. Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.

公开(公告)号：HK1124198A1

公开(公告)日：2009-07-03

申请号：HK09101940

申请日：2009-03-02

Applicant: QUALCOMM INC

Inventor： RICHARDSON TOM ,  JIN HUI ,  LI JUNYI ,  PARIZHSKY VLADIMIR

IPC: H04W20090101 ,  H04W28/18 ,  H04W52/08 ,  H04W52/14

Abstract: In a first mode of dedicated control channel (DCCH) operation, a wireless terminal is allocated more segments than in a second mode. The wireless terminal uses different information bit to modulation symbol mapping in the different modes. On a per DCCH segment basis, the same number of modulation symbols are communicated in either mode but more information bits are conveyed in the second mode. Information bits for a DCCH segment are partitioned into two subsets. The two subsets are used to generate another set, each of the two subsets and the another set are input to the same mapping function to generate three equal size sets of modulation symbols which are transmitted via the DCCH segment. Uplink tone hopping is used such that one of the equal size sets of modulation symbols for the DCCH segment uses the same tone but a different set uses a different tone.

公开(公告)号：CA2630540A1

公开(公告)日：2007-07-05

申请号：CA2630540

申请日：2006-12-20

Applicant: QUALCOMM INC

Inventor： TSIRTSIS GEORGE ,  PARIZHSKY VLADIMIR ,  SRINIVASAN MURARI ,  ANIGSTEIN PABLO ,  LAROIA RAJIV

IPC: H04L12/28 ,  H04W40/04

Abstract: Methods and apparatus for routing messages between an end node and an access node via another access node are described. Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.

公开(公告)号：EP1810431A4

公开(公告)日：2013-02-20

申请号：EP05804360

申请日：2005-10-12

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  PARIZHSKY VLADIMIR

IPC: H04L27/26

CPC classification number: H04L27/2601

公开(公告)号：ES2656814T3

公开(公告)日：2018-02-28

申请号：ES06847884

申请日：2006-12-20

Applicant: QUALCOMM INC

Inventor： ANIGSTEIN PABLO ,  SRINIVASAN MURARI ,  VENKATA UPPALA SATHYADEV ,  CHAMPALAL DUGAD RAKESH ,  DAS ARNAB ,  PARIZHSKY VLADIMIR ,  LAROIA RAJIV

IPC: H04L25/14 ,  H04W88/08 ,  H04W88/10

Abstract: Un aparato de comunicaciones de estación base (200), que comprende: un módulo de control de capa de enlace lógico (297) que incluye un módulo de segmentación (213) para segmentar paquetes en tramas a transmitir; una pluralidad de módulos de conexión de capa física (270, 280, 290) correspondientes a una pluralidad de puntos de conexión física (230, 240, 250) acoplados a dicho único módulo de control de capa de enlace lógico que admite un único enlace lógico, admitiendo cada uno de dichos módulos de conexión de capa física diferentes enlaces físicos a través de los cuales pueden transmitirse tramas, donde cada uno de los múltiples módulos de dichos módulos de conexión de capa física puede mantener un enlace de comunicaciones separado con un primer nodo admitiendo así múltiples enlaces de comunicaciones simultáneos con el primer nodo a través de diferentes módulos de capa de enlace físico, donde dicho módulo de control de capa de enlace lógico incluye un primer conjunto de estado de capa de enlace lógico (218), usándose dicho primer conjunto de estado de capa de enlace lógico para proporcionar el control de la capa de enlace lógico común para cada uno de dichos múltiples enlaces de comunicaciones simultáneos al primer nodo; y un módulo de admisión de enlace lógico (215) configurado para atender solicitudes de conexión de 20 terminales inalámbricos de acuerdo con el procedimiento de las reivindicaciones 2 o 3.

公开(公告)号：ES2570988T3

公开(公告)日：2016-05-23

申请号：ES05804360

申请日：2005-10-12

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  LI JUNYI ,  PARIZHSKY VLADIMIR

IPC: H04L27/26

Abstract: Un procedimiento para hacer funcionar un dispositivo de comunicaciones inalámbricas OFDM, que comprende: durante un primer periodo de tiempo: i) transmitir señales en un primer número de tonos distribuidos de manera uniforme en una primera banda de frecuencia; y durante un segundo periodo de tiempo: i) transmitir señales en un segundo número de tonos distribuidos de manera uniforme en una segunda banda de frecuencia, que es más ancha que dicha primera banda de frecuencia, siendo dicho segundo número de tonos idéntico a dicho primer número de tonos.

公开(公告)号：CA2630505C

公开(公告)日：2015-08-04

申请号：CA2630505

申请日：2006-12-20

Applicant: QUALCOMM INC

Inventor： LAROIA RAJIV ,  ANIGSTEIN PABLO ,  PARIZHSKY VLADIMIR ,  SRINIVASAN MURARI ,  TSIRTSIS GEORGE

IPC: H04L12/701 ,  H04J11/00 ,  H04W4/06 ,  H04W4/12 ,  H04W40/00 ,  H04W48/10 ,  H04W88/18

Abstract: Methods and apparatus for routing messages between an end node and an access node via another access node are described. Physical layer identification information is used when identifying a remote, e.g., adjacent, access node as a message destination. Thus, when a connection identifier based on one or more physical layer identifiers is available to a wireless terminal, e.g., from one or more downlink signals received from a destination access node, the wireless terminal can use the connection identifier corresponding to the destination node to route a message via an access node with which it has an established uplink connection. Such connection identifier information can be used even when other addressing information, e.g., network layer address information, associated with the destination access node, may not be available to the wireless terminal.

公开(公告)号：AU2012200779B2

公开(公告)日：2014-02-20

申请号：AU2012200779

申请日：2012-02-10

Applicant: QUALCOMM INC

Inventor： PARIZHSKY VLADIMIR ,  RICHARDSON THOMAS

IPC: H04B7/04

Abstract: Methods and apparatus for improved utilization of air link resources are discussed in wireless communications systems employing multi-sector base stations and wireless terminals with multiple antennas. Timing synchronization is maintained across the base station sectors, and the same set of tones are used in adjacent sectors. In a sector boundary region, which is typically a high interference region, a wireless terminal is set to a sector pair state and operated in a MIMO mode of operation, communicating with two adjacent base station antenna faces of the same base station concurrently, the two different adjacent base station antenna faces corresponding to different adjacent sectors. Thus, typically high interference sector boundary regions, are converted into high capacity regions by having the sectors coordinated and utilizing MIMO techniques. (00 U-) C4r N 101 I)0O z ci i 0N z