公开(公告)号：CA2667204A1

公开(公告)日：2008-05-02

申请号：CA2667204

申请日：2007-10-24

Applicant: QUALCOMM INC

Inventor： PALANKI RAVI ,  BUDIANU PETRU CRISTIAN ,  MALLIK SIDDARTHA ,  BHUSHAN NAGABHUSHANA SINDHUSHAYANA ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD

IPC: H04L1/16

Abstract: Systems and methodologies are described that facilitate establishing a fo rward link acknowledgement channel and transmitting acknowledgment signals t hereupon. In particular, the signals can be spread within contiguous channel clusters in a tile where the signals in the cluster are mutually orthogonal to one another. Additionally, the signals can be multiplexed over a plurali ty of frequency regions. In this regard, the acknowledgment signals are dive rse with respect to frequency and interference; moreover, the signals can be received and decoded even where one of the channels experiences high interf erence. Furthermore, the acknowledgement signals can also communicate a chan nel deassignment value, which allows devices to utilize persistent channels in communicating data to one another

公开(公告)号：CA2663980A1

公开(公告)日：2008-05-02

申请号：CA2663980

申请日：2007-10-24

Applicant: QUALCOMM INC

Inventor： KHANDEKAR AAMOD ,  WANG MICHAEL ,  GOROKHOV ALEXEI

IPC: H04J11/00

Abstract: System(s) and method(s) are provided to facilitate generating and process ing acquisition pilots in wireless communications. Acquisition pilots that c onvey timing and frequency synchronization information, wireless system acqu isition and system determination information are modulated with pseudorandom sequences. The R bits of information carried by the acquisition pilot that conveys system determination information are augmented with T bits that conv ey a counter index associated with the system timing of superframes transmit ted from an access point. The processing overhead resulting from the additio n of the T bits is offset by the advantages afforded to a wireless communica tion. Salient advantages include: (i) processing gain at a receiver for comm unication in a specific sector during asynchronous operation, (ii) packet bo undary determination through the counter field values, and (iii) initializat ion of various pseudorandom registers employed for communication.

公开(公告)号：CA2661186A1

公开(公告)日：2008-03-20

申请号：CA2661186

申请日：2007-09-11

Applicant: QUALCOMM INC

Inventor： GOROKHOV ALEXEI ,  KHANDEKAR AAMOD ,  PRAKASH RAJAT

IPC: H04W28/16 ,  H04W52/18 ,  H04W52/26

Abstract: Systems and methodologies are described that facilitate mitigating effect of non-linear distortion from a power amplifier on a spectral mask margin. Power limit indications can be analyzed in scheduling mobile devices. Mobile devices with power limits can be scheduled on inner subbands. Other mobile devices can employ remaining portions of an allocated spectrum. Further, mob ile devices can evaluate and establish a power amplifier backoff based upon the subband scheduling.

公开(公告)号：CA2660580A1

公开(公告)日：2008-03-13

申请号：CA2660580

申请日：2007-09-04

Applicant: QUALCOMM INC

Inventor： BORRAN MOHAMMAD J ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD ,  JI TINGFANG ,  KANNAN ARU CHENDAMARI

IPC: H04B7/005 ,  H04W52/24

Abstract: Systems and methodologies are described that provide techniques for gener ating and utilizing reverse link feedback for interference management in a w ireless communication system. Other Sector Interference (OSI) indicators are transmitted from an interfering access point to an access terminal. At the access terminal, an appropriate delta value(s) is combined with the received OSI indicators. The combined information is transmitted to the access point in a feedback so the serving sector access point can analyze the amount of interference. Based on the provided feedback from the terminal, the serving sector access point can assign resources for use by the terminal in communic ation with the serving sector.

公开(公告)号：CA2658367A1

公开(公告)日：2008-02-28

申请号：CA2658367

申请日：2007-08-27

Applicant: QUALCOMM INC

Inventor： GOROKHOV ALEXEI ,  KHANDEKAR AAMOD

IPC: H04L5/02 ,  H04L27/26

Abstract: In a communication system wherein a CDMA segment at each access point con sists of multiple sub-segments a three frame transmission time interval (TTI ) with eight retransmissions is utilized for data transmission. The access p oint not only specifies the interlaces to be utilized for data transmission it also assigns packet start interlaces for particular access terminals. An auxiliary pilot channel R-AuxPICH is transmitted by an access terminal along with CDMA data on reverse link. The ratio of R-AuxPICH to R-PICH is varied based on ACK/NACK feedback. A reverse link activity bit (RAB) which can be u sed as an emergency load-control mechanism for non-QoS flows is also disclos ed.

公开(公告)号：MX2007015007A

公开(公告)日：2008-02-15

申请号：MX2007015007

申请日：2006-05-31

Applicant: QUALCOMM INC

Inventor： AGRAWAL AVNEESH ,  KHANDEKAR AAMOD ,  GOROKHOV ALEXEI

IPC: H04Q7/38

Abstract: Se provee un metodo, aparato y estructura de canal para reconocer mensajes de asignacion; el metodo y aparato permiten la senalizacion eficiente con base en los recursos.

公开(公告)号：MX2007000852A

公开(公告)日：2007-05-23

申请号：MX2007000852

申请日：2005-07-11

Applicant: QUALCOMM INC

Inventor： SUTIVONG ARAK ,  TEAGUE EDWARD HARRISON ,  GOROKHOV ALEXEI

IPC: H04W52/04 ,  H04W72/08 ,  H04W74/08

Abstract: Se describe un aparato y metodo para transmitir un indicador de calidad de canal mientras se reduce al minimo el uso de un canal de difusion; se determina una metrica de geometria de enlace de avance de senales de transmision observadas; se determina un indicador de valor de calidad de canal como una funcion de las senales de transmision observadas; de manera aleatoria se selecciona una secuencia de acceso a partir de un grupo de una pluralidad de grupos de secuencias de acceso, en donde cada uno de la pluralidad de grupos de secuencias de acceso corresponde a diferentes rangos de valores de calidad de canal.

公开(公告)号：AR053727A1

公开(公告)日：2007-05-16

申请号：ARP060101933

申请日：2006-05-12

Applicant: QUALCOMM INC

Inventor： JI TANGFANG ,  NAGUIB AYMAN FAWZY ,  SUTIVONG ARAK ,  GORE DHANANJAY ASHOK ,  GOROKHOV ALEXEI ,  SAMPATH HEMANTH ,  DONG MIN

IPC: H04J99/00 ,  H04J11/00

Abstract: Métodos y aparatos que utilizan la transformada discreta de Fourier de las respuestas del dominio del tiempo para generar pesos formadores de haces para las comunicaciones inalámbricas. Además, en algunas formas de realizacion pueden utilizarse subportadores de frecuencia que constituyen una cantidad inferior a la totalidad de los subportadores de frecuencia asignadas para la comunicacion a un usuario, para generar las pesos formadores de haces.

公开(公告)号：CA2627452A1

公开(公告)日：2007-05-03

申请号：CA2627452

申请日：2006-10-27

Applicant: QUALCOMM INC

Inventor： GORE DHANANJAY ASHOK ,  KHANDEKAR AAMOD ,  GOROKHOV ALEXEI ,  TEAGUE EDWARD HARRISON ,  DONG MIN

IPC: H04Q7/38 ,  H04L27/26

公开(公告)号：CA2627442A1

公开(公告)日：2007-05-03

申请号：CA2627442

申请日：2006-10-26

Applicant: QUALCOMM INC

Inventor： GOROKHOV ALEXEI ,  DONG MIN

IPC: H04L1/16 ,  H04L5/02 ,  H04L27/26

Abstract: A signaling channel that punctures traffic channels is used to send signaling, e.g., acknowledgments (ACKs). To send signaling, resources for the signaling channel are determined, e.g., based on a frequency hopping pattern. Signaling is spread with a spreading code (e.g., a Walsh code) to generate spread signaling, which is mapped to the resources for the signaling channel. Each resource may be partitioned into multiple clusters. A signaling message may be mapped to different clusters to achieve diversity. Traffic data may also be mapped to other resources for a traffic channel assigned for use. Traffic data mapped to the other resources for the signaling channel is punctured. The mapped signaling and traffic data are further processed (e.g., for OFDM or SC-FDMA) and transmitted.