公开(公告)号：MY151491A

公开(公告)日：2014-05-30

申请号：MYPI20092180

申请日：2007-12-18

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN

IPC: H04B7/06

Abstract: METHODS AND APPARATUS FOR INCREASING DIVERSITY GAIN AT A RECEIVER BY APPLYING BEAMFORMING TO TRANSMIT DIVERSITY SPACE-TIME CODED SIGNALS. TRANSMIT DIVERSITY CAN BE PROVIDED AT A SIGNAL SOURCE BY SPACE-TIME CODING THE SIGNAL. A TRANSMIT SIGNAL IS SPACE-TIME CODED OVER A PLURALITY OF SPACE-TIME ANTENNA GROUPS (340oo-340GK), WITH EACH SPACE-TIME ANTENNA GROUP ASSOCIATED WITH A SPECIFIC SPACE-TIME CODE. THE SIGNAL AT EACH SPACE-TIME ANTENNA GROUP IS BEAMFORMED OVER THE PLURALITY OF ANTENNA IN THE SPACE-TIME ANTENNA GROUP. EACH OF THE PLURALITY OF ANTENNA IN A SPACE-TIME ANTENNA GROUP (340oo-340GK) IS WEIGHTED WITH A DISTINCT WEIGHT, RELATIVE TO THE OTHER ANTENNA IN THE SPACE-TIME GROUP. EACH WEIGHT CAN HAVE A DISTINCT AMPLITUDE, PHASE, OR COMBINATION OF AMPLITUDE AND PHASE. THE WEIGHTS CAN BE STATIC OR DYNAMIC. THE DYNAMIC WEIGHTS CAN VARY AMPLITUDE, PHASE, OR A COMBINATION OF AMPLITUDE AND PHASE OF EACH WEIGHT OVER TIME.

公开(公告)号：MY142280A

公开(公告)日：2010-11-15

申请号：MYPI20052163

申请日：2005-05-13

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN ,  AVNEESH AGRAWAL

IPC: H04L1/06 ,  H04B7/005 ,  H04B7/04 ,  H04B7/06 ,  H04J99/00 ,  H04L1/00 ,  H04L25/02 ,  H04L27/26

Abstract: METHOD AND APPARATUSES THAT APPLY A TIME-VARYING DELAY TO SYMBOLS TO BE TRANSMITTED FROM ONE OR MORE ANTENNAS (A1, A2, A3, A4) ARE PROVIDED. ONE SUCH METHOD MAY INCLUDE A FIRST SYMBOL (81) COMPRISING A FIRST PLURALITY OF SAMPLES PROVIDED TO A FIRST ANTENNA (A1). THE FIRST SYMBOL (81) IS PROVIDED TO A SECOND ANTENNA (A2) AFTER A FIRST DELAY PERIOD. A SECOND SYMBOL (82) COMPRISING A SECOND PLURALITY OF SAMPLES IS PROVIDED TO THE FIRST ANTENNA (A1). THE SECOND SYMBOL (82) IS ALSO PROVIDED TO THE SECOND ANTENNA AFTER A SECOND DELAY PERIOD THAT IS DIFFERENT THAN THE FIRST DELAV OERIOD.

公开(公告)号：MY144651A

公开(公告)日：2011-10-31

申请号：MYPI20061063

申请日：2006-03-10

Applicant: QUALCOMM INC

Inventor： ALEXEI GOROKHOV ,  FAWZY NAGUIB AYMAN ,  ARAK SUTIVONG ,  ASHOK GORE DHANANJAY ,  TINGFANG JI

Abstract: TRANSMISSION PATTERNS FOR PILOT SYMBOLS TRANSMITTED FROM A MOBILE STATION OR BASE STATION ARE PROVIDED. THE PATTERN ALLOWS FOR IMPROVED RECEIPT OF THE PILOT SYMBOLS TRANSMITTED. IN ADDITION, SCHEMES FOR IMPROVING THE ABILITY TO MULTIPLEX PILOT SYMBOLS WITHOUT INTERFERENCE AND/OR OR BIASING FROM DIFFERENT MOBILE STATIONS OVER THE SAME FREQUENCIES AND IN THE SAMETIME SLOTS.

公开(公告)号：AU2006305703B2

公开(公告)日：2011-07-21

申请号：AU2006305703

申请日：2006-10-27

Applicant: QUALCOMM INC

Inventor： TINGFANG JI ,  ARAK SUTIVONG ,  ASHOK GORE DHANANJAY ,  ALEXEI GOROKHOV ,  FAWZY NAGUIB AYMAN

IPC: H04L27/26 ,  H04L1/00

Abstract: A plurality of transmission patterns for pilot systems transmitted from a mobile station or base station are provided. Depending upon the frequency selectivity and/or the time selectivity of the channel between the mobile station and the base station, an appropriate pattern is selected. The selected pattern allows for improved receipt of the pilot symbols. In addition, scrambling codes can be applied to the patterns for reducing interference and/or biasing the different mobile stations over the same frequencies and in the same slots.

公开(公告)号：MY154331A

公开(公告)日：2015-05-29

申请号：MYPI20101824

申请日：2008-11-14

Applicant: QUALCOMM INC

Inventor： PRANAV DAYAL ,  FAWZY NAGUIB AYMAN ,  MAHESH MAKHIJANI

IPC: H04W36/08

Abstract: CONFUSION RESULTING FROM ASSIGNING THE SAME NODE IDENTIFIER TO MULTIPLE NODES IS RESOLVED THROUGH THE USE OF CONFUSION DETECTION TECHNIQUES AND THE USE OF UNIQUE IDENTIFIERS FOR THE NODES. IN SOME ASPECTS AN ACCESS POINT AND/OR AN ACCESS TERMINAL MAY PERFORM OPERATIONS RELATING TO DETECTING CONFUSION AND/OR PROVIDING A UNIQUE IDENTIFIER TO RESOLVE CONFUSION.

公开(公告)号：ZA200509156B

公开(公告)日：2007-02-28

申请号：ZA200509156

申请日：2005-11-11

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN ,  AVNEESH AGRAWAL ,  ARAK SUTIVONG

IPC: G01R20090101

公开(公告)号：MY150632A

公开(公告)日：2014-02-14

申请号：MYPI20092179

申请日：2007-12-19

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN

IPC: H04B7/02

Abstract: METHODS AND APPARATUS FOR INCREASING DIVERSITY GAIN AT A RECEIVER (380) BY APPLYING BEAMFORMING TO TRANSMIT DIVERSITY SPACE-TIME CODED SIGNALS. A TRANSMIT SIGNAL IS SPACE-TIME CODED OVER A PLURALITY OF SPACE-TIME ANTENNA GROUPS (340), WITH EACH SPACE-TIME ANTENNA GROUP ASSOCIATED WITH A SPECIFIC SPACE-TIME CODE. THE SIGNAL AT EACH SPACE-TIME ANTENNA GROUP (340) IS BEAMFORMED OVER THE PLURALITY OF ANTENNA IN THE SPACE-TIME ANTENNA GROUP (340). EACH OF THE PLURALITY OF ANTENNA IN A SPACE-TIME ANTENNA GROUP (340) IS WEIGHTED WITH A DISTINCT WEIGHT, RELATIVE TO THE OTHER ANTENNA IN THE SPACE-TIME GROUP. THE BEAMFORMING WEIGHTS CAN VARY BASED ON A CHANNEL QUALITY FEEDBACK INDICATION FROM A RECEIVER (380). THE AMPLITUDE, PHASE, OR A COMBINATION OF AMPLITUDE AND PHASE OF EACH WEIGHT OR OF A VECTOR OF MULTIPLE WEIGHTS CAN VARY AS A FUNCTION OF THE CHANNEL QUALITY INDICATION IN ORDER TO IMPROVE THE QUALITY OF THE RECEIVED SIGNAL.

公开(公告)号：MY147711A

公开(公告)日：2013-01-15

申请号：MYPI20081288

申请日：2006-10-27

Applicant: QUALCOMM INC

Inventor： ALEXEI GOROKHOV ,  FAWZY NAGUIB AYMAN ,  ARAK SUTIVONG ,  ASHOK GORE DHANANJAY ,  TINGFANG JI

IPC: H04L27/26

Abstract: A PLURALITY OF TRANSMISSION PATTERNS FOR PILOT SYSTEMS TRANSMITTED FROM A MOBILE STATION OR BASE STATION ARE PROVIDED. DEPENDING UPON THE FREQUENCY SELECTIVITY AND/OR THE TIME SELECTIVITY OF THE CHANNEL BETWEEN THE MOBILE STATION AND THE BASE STATION, AN APPROPRIATE PATTERN IS SELECTED. THE SELECTED PATTERN ALLOWS FOR IMPROVED RECEIPT OF THE PILOT SYMBOLS. IN ADDITION, SCRAMBLING CODES CAN BE APPLIED TO THE PATTERNS FOR REDUCING INTERFERENCE AND/OR BIASING THE DIFFERENT MOBILE STATIONS OVER THE SAME FREQUENCIES AND IN THE SAME SLOTS.

公开(公告)号：AU2007333654B2

公开(公告)日：2011-10-20

申请号：AU2007333654

申请日：2007-12-19

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN

IPC: H04B7/02 ,  H04B7/06

Abstract: Methods and apparatus for increasing diversity gain at a receiver by applying beamforming to transmit diversity space-time coded signals. A transmit signal is space-time coded over a plurality of space-time antenna groups, with each space-time antenna group associated with a specific space-time code. The signal at each space-time antenna group is beamformed over the plurality of antenna in the space-time antenna group. Each of the plurality of antenna in a space-time antenna group is weighted with a distinct weight, relative to the other antenna in the space-time group. The beamforming weights can vary based on a channel quality feedback indication from a receiver. The amplitude, phase, or a combination of amplitude and phase of each weight or of a vector of multiple weights can vary as a function of the channel quality indication in order to improve the quality of the received signal.

公开(公告)号：AU2011221390A1

公开(公告)日：2011-09-29

申请号：AU2011221390

申请日：2011-09-08

Applicant: QUALCOMM INC

Inventor： FAWZY NAGUIB AYMAN

IPC: H04B7/02 ,  H04B7/06

Abstract: Methods and apparatus for increasing diversity gain at a receiver by applying beamforming to transmit diversity space-time coded signals. A transmit signal is space-time coded over a plurality of space-time 5 antenna groups, with each space-time antenna group associated with a specific space-time code. The signal at each space-time antenna group is beamformed over the plurality of antenna in the space-time antenna group. Each of the plurality of antenna in a space-time antenna group is weighted with a distinct weight, relative to the other antenna in the space-time group. The beamforming weights can vary based on a channel quality feedback indication from a receiver. The amplitude, phase, or a combination of 0 amplitude and phase of each weight or of a vector of multiple weights can vary as a function of the channel quality indication in order to improve the quality of the received signal. CD co U)) oo( a) (9* cnj > 0