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    FORWARD AND REVERSE SHIFTING SELECTIVE HARQ COMBINING SCHEME FOR OFDMA SYSTEMS
    11.
    发明专利
    FORWARD AND REVERSE SHIFTING SELECTIVE HARQ COMBINING SCHEME FOR OFDMA SYSTEMS 未知

    公开(公告)号：CA2706493A1

    公开(公告)日：2009-06-18

    申请号：CA2706493

    申请日：2008-12-12

    Applicant: QUALCOMM INC

    Inventor： PARK JONG HYEON ,  SIM BOK TAE ,  KIM JE WOO ,  GLAZKO SERGUEI A ,  NANAVATI SAMEER ,  PARK JU WON

    IPC: H04L1/18

    Abstract: A method and apparatus for combining retransmitted hybrid automatic repeat-request (HARQ) messages at different stages in an OFDM/OFDMA receiver are provided. A combination of different types of HARQ combiners may be designed into the receiver and selected on a per-channel basis. Proper selection of a HARQ combining scheme may reduce the required HARQ buffer size and may provide an increased combining gain when compared to conventional HARQ combining techniques. Furthermore, the HARQ combiner type may be dynamically selected through forward and reverse shifting between the different types of HARQ combining schemes in an effort to decrease the bit error ratio (BER) without saturating the HARQ buffer.

    MODIFIED INVERTED-F ANTENNA FOR WIRELESS COMMUNICATION
    13.
    发明专利
    MODIFIED INVERTED-F ANTENNA FOR WIRELESS COMMUNICATION 未知

    公开(公告)号：CA2644946A1

    公开(公告)日：2007-11-08

    申请号：CA2644946

    申请日：2007-03-28

    Applicant: QUALCOMM INC

    Inventor： HAN KYUNG SUP ,  KIM JE WOO ,  RAKYTYANSKYY VOLODYMYR ,  SULIMA OLEKSANDR

    IPC: H01Q1/38 ,  H01Q1/48 ,  H01Q3/24 ,  H01Q21/00

    Abstract: An embodiment of the present invention is a modified inverted-F antenna for wireless communication. The antenna circuit includes a dielectric substrate having a first surface, a radiating stub on the first surface of the dielectric substrate, and a first ground plate on the first surface of the dielectric substrate to couple to ground. The first ground plate includes one or more grounded capacitive stubs spaced apart from the radiating stub. The one or more grounded capacitive stubs tune performance parameters for the antenna circuit.

    MODIFIED INVERTED-F ANTENNA FOR WIRELESS COMMUNICATION
    15.
    发明专利
    MODIFIED INVERTED-F ANTENNA FOR WIRELESS COMMUNICATION 未知

    公开(公告)号：CA2644946C

    公开(公告)日：2013-04-30

    申请号：CA2644946

    申请日：2007-03-28

    Applicant: QUALCOMM INC

    Inventor： KIM JE WOO ,  HAN KYUNG SUP ,  RAKYTYANSKYY VOLODYMYR ,  SULIMA OLEKSANDR

    IPC: H01Q1/38 ,  H01Q1/48 ,  H01Q3/24 ,  H01Q21/00

    Abstract: An embodiment of the present invention is a modified inverted-F antenna for wireless communication. The antenna circuit includes a dielectric substrate having a first surface, a radiating stub on the first surface of the dielectric substrate, and a first ground plate on the first surface of the dielectric substrate to couple to ground. The first ground plate includes one or more grounded capacitive stubs spaced apart from the radiating stub. The one or more grounded capacitive stubs tune performance parameters for the antenna circuit.

    METHOD AND APPARATUS FOR DIVERSITY COMBINING OF REPEATED SIGNALS IN OFDMA SYSTEMS
    16.
    发明专利
    METHOD AND APPARATUS FOR DIVERSITY COMBINING OF REPEATED SIGNALS IN OFDMA SYSTEMS 未知

    公开(公告)号：CA2713290A1

    公开(公告)日：2009-08-27

    申请号：CA2713290

    申请日：2008-06-18

    Applicant: QUALCOMM INC

    Inventor： PARK JONG HYEON ,  SIM BOK TAE ,  KIM JE WOO

    IPC: H04B7/08

    Abstract: In accordance with a method for diversity combining in an orthogonal frequency division multiple access (OFDMA) system, repetition diversity equalization and combining may be performed with respect to received OFDMA signals. In addition, receiver antenna diversity equalization and combining may be performed with respect to the received OFDMA signals. The repetition diversity equalization and combining and the receiver antenna diversity equalization and combining may be performed in accordance with a maximum ratio combining (MRC) scheme.

    METHODS AND APPARATUS FOR MAXIMUM RATIO COMBINING FOR DUPLICATED SIGNALS IN OFDMA SYSTEMS
    17.
    发明专利
    METHODS AND APPARATUS FOR MAXIMUM RATIO COMBINING FOR DUPLICATED SIGNALS IN OFDMA SYSTEMS 未知

    公开(公告)号：CA2710674A1

    公开(公告)日：2009-07-16

    申请号：CA2710674

    申请日：2008-06-16

    Applicant: QUALCOMM INC

    Inventor： PARK JONG HYEON ,  CHANG TAE RYUN ,  KIM JE WOO

    IPC: H04L27/26

    Abstract: In accordance with a method for processing a received orthogonal frequency division multiple access (OFDMA) signal that comprises a duplicated signal, sub-carriers within the OFDMA signal may be arranged into a duplicated format. The OFDMA signal may be equalized and combined after the sub-carriers have been arranged into the duplicated format. The equalizing and combining may be performed in accordance with a maximum ratio combining (MRC) scheme. The OFDMA signal may be demapped after the equalizing and combining is performed.

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