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    202.
    发明专利
    未知

    公开(公告)号：NO20014975L

    公开(公告)日：2001-12-04

    申请号：NO20014975

    申请日：2001-10-12

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  SAINTS KEITH W

    IPC: H04B1/707 ,  H04B7/06 ,  H04B7/08 ,  H04B14/04 ,  H04L1/00 ,  H04L1/02 ,  H04L1/06

    Abstract: Apparatuses for a transmitter and a receiver which enhance the performance of a system utilizing interleaving and transmit diversity by reordering the sequence of symbols transmitted along the different transmission channels. This enhancement is accomplished by providing different shuffling functions in conjunction with the interleavers and deinterleavers used with different transmission channels, which decreases the probability of loss of sequential symbols when transmission channels or antennas become correlated.

    Method and apparatus for high rate packet data transmission.
    205.
    发明专利
    Method and apparatus for high rate packet data transmission. 未知

    公开(公告)号：ZA988164B

    公开(公告)日：2001-03-05

    申请号：ZA988164

    申请日：1998-09-07

    Applicant: QUALCOMM INC

    Inventor： TIEDEMANN JR EDWARD G ,  LUNDBY STEIN A ,  ODENWALDER JOSEPH P

    IPC: H04B1/707 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04W16/00 ,  H04W16/24 ,  H04W16/32 ,  H04W48/08 ,  H04W48/16 ,  H04B ,  H04L ,  G06F

    Abstract: A method and apparatus for providing orthogonal spot beams (14a, 14b), sectors (16a, 16b), and picocells (18). The transmissions can be made orthogonal by using orthogonal auxiliary pilots and different Walsh traffic channels in adjacent areas. In accordance with the IS-95 standard, the pilot signal is covered with the 64-chip Walsh sequence zero. The 64-chip all zeros Walsh sequence can be designated as P and the 64-chip all one sequence can be designated as M. In the present invention, additional pilot signals can be provided by concatenating 64-chip all zeros P and all ones M sequences. Thus, for two pilot signals, pilot Walsh sequences of PP and PM can be used. For four pilot signals, pilot Walsh sequences of PPPP, PMPM, PPMM, and PMMP can be used. The present invention can be extended such that any required number of pilot Walsh sequences can be generated by substituting each bit in an K-bit Walsh sequence with the 64-chip all zeros P or all ones M sequence depending on the value of that bit.

    206.
    发明专利
    未知

    公开(公告)号：NO20010828D0

    公开(公告)日：2001-02-19

    申请号：NO20010828

    申请日：2001-02-19

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  HOLTZMAN JACK M ,  TIEDEMANN JR EDWARD G ,  TERASAWA DAISUKE

    IPC: H04B1/707 ,  H04B1/7097 ,  H04B7/005 ,  H04B

    Abstract: A method for limiting peak transmit power in a CDMA communication system by transmitting a first communication signal having a first high transmit power region, and transmitting a second communication signal having a second high transmit power region. A first and a second communication signal are time offset to prevent the first and second high transmit power regions from occurring simultaneously. Time shifting only a portion of the first and second communication signals is also taught. The first and second communication signals can also include respective first and second low transmit power regions. The time offset can be selected to align one of the first and second high transmit power regions with one of the first and second low transmit power regions. The total transmit power signal can be determined and the time offset can be selected to minimize a peak level of the total transmit power signal. The communication signals are separated into a plurality of portions and portions of the first and second communication signals are time offset to re-order the sequence of transmission of the plurality of portions.

    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION ENERGY IN A COMMUNICATION SYSTEM EMPLOYING ORTHOGONAL TRANSMIT DIVERSITY
    207.
    发明专利
    METHOD AND APPARATUS FOR CONTROLLING TRANSMISSION ENERGY IN A COMMUNICATION SYSTEM EMPLOYING ORTHOGONAL TRANSMIT DIVERSITY 未知

    公开(公告)号：CA2376194A1

    公开(公告)日：2001-01-04

    申请号：CA2376194

    申请日：2000-06-28

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID

    IPC: H04B7/005 ,  H04B7/06 ,  H04B7/26

    Abstract: The present invention is a novel and improved method and apparatus for contr ol transmission energy. The present invention describes a closed loop power control system that operates in conjunction with a transmitter (64, 66) usin g orthogonal transmit diversity. In a first embodiment of the present inventio n, the receiver evaluates the signal to noise ratio (SNR) of the two components of the signal. A weighted sum of these two components emphasizing the weaker of the two signals is generated and used in the generation of the power control commands. In a second embodiment of the present invention, the SNR o f the two component signals are calculated and two separate power control commands are generated based on a corresponding one of the calculated SNR values.

    Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel
    208.
    发明专利
    Forward link power control of multiple data streams transmitted to a mobile station using a common power control channel 未知

    公开(公告)号：AU4334300A

    公开(公告)日：2000-11-14

    申请号：AU4334300

    申请日：2000-04-06

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  RAZOUMOV LEONID

    IPC: H04B7/005 ,  H04B7/26 ,  H04J3/00 ,  H04W52/24 ,  H04W52/54 ,  H04W52/58 ,  H04W52/60

    Abstract: A method and apparatus for controlling transmit power levels of a plurality of different data streams (120, 120a, 122, 122a, 124, 124a) transmitted from at least one base station to a mobile station in a mobile radio communication system. The first and second data streams are trasmitted from the base station and received at the mobile station. A stream of power control commands is formed at the mobile station in accordance with either the first or second received data stream. A power control signal is formed at the mobile station from the first stream of power control commands and transmitted to the base station. A received stream of power control commands is formed from the received power control signal at the base station, and the transmit power levels of the first and second data streams from the base station are controlled in accordance with the received stream of power control commands.

    Method and apparatus for producing orthogonal spot beams, sectors and micro-cells
    209.
    发明专利
    Method and apparatus for producing orthogonal spot beams, sectors and micro-cells 未知

    公开(公告)号：CZ2000828A3

    公开(公告)日：2000-09-13

    申请号：CZ2000828

    申请日：1998-09-08

    Applicant: QUALCOMM INC

    Inventor： LUNDBY STEIN A ,  ODENWALDER JOSEPH P ,  TIEDEMANN EDWARD G JR

    IPC: H04B1/707 ,  H04B7/26 ,  H04J11/00 ,  H04J13/00 ,  H04J13/10 ,  H04W16/00 ,  H04W16/24 ,  H04W16/32 ,  H04W48/08 ,  H04W48/16

    Abstract: A method and apparatus for providing orthogonal spot beams (14a, 14b), sectors (16a, 16b), and picocells (18). The transmissions can be made orthogonal by using orthogonal auxiliary pilots and different Walsh traffic channels in adjacent areas. In accordance with the IS-95 standard, the pilot signal is covered with the 64-chip Walsh sequence zero. The 64-chip all zeros Walsh sequence can be designated as P and the 64-chip all one sequence can be designated as M. In the present invention, additional pilot signals can be provided by concatenating 64-chip all zeros P and all ones M sequences. Thus, for two pilot signals, pilot Walsh sequences of PP and PM can be used. For four pilot signals, pilot Walsh sequences of PPPP, PMPM, PPMM, and PMMP can be used. The present invention can be extended such that any required number of pilot Walsh sequences can be generated by substituting each bit in an K-bit Walsh sequence with the 64-chip all zeros P or all ones M sequence depending on the value of that bit.

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