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    Allocating transmit power among multiple air interfaces
    1.
    发明专利
    Allocating transmit power among multiple air interfaces 有权
    在多个空气接口上分配发射功率

    公开(公告)号：JP2013176120A

    公开(公告)日：2013-09-05

    申请号：JP2013084859

    申请日：2013-04-15

    Applicant: Qualcomm Inc ,  クゥアルコム・インコーポレイテッドQualcomm Incorporated

    Inventor： JUN HU ,  LIN YU-CHUAN ,  REZA SHAHIDI ,  VIJAYA C RAMASAMI ,  RAVINDRA M GARACH

    IPC: H04W52/34 ,  H04W88/06

    CPC classification number: H04W72/0473 ,  H04W72/044 ,  H04W72/1215 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1222 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/40

    Abstract: PROBLEM TO BE SOLVED: To provide systems and methods for allocating transmit power among multiple interfaces in a wireless communication system.SOLUTION: A method comprises determining a first power level that is used for transmitting over a first air interface, determining a maximum power level available for transmitting over a second interface, comparing the first power level to the maximum power level, determining a second power level that is used for transmitting over the second air interface on the basis of the comparison of the first power level to the maximum power level, and generating a power-based payload constraint on the basis of the second power level.

    Abstract translation: 要解决的问题：提供用于在无线通信系统中的多个接口之间分配发射功率的系统和方法。解决方案：一种方法包括：确定用于通过第一空中接口发射的第一功率电平，确定可用的最大功率电平 用于通过第二接口进行发送，将所述第一功率电平与所述最大功率电平进行比较，基于所述第一功率电平与所述最大功率电平的比较来确定用于通过所述第二空中接口进行发送的第二功率电平， 以及基于所述第二功率电平产生基于功率的有效载荷约束。

    3.
    发明专利
    未知

    公开(公告)号：AT466421T

    公开(公告)日：2010-05-15

    申请号：AT01950704

    申请日：2001-06-28

    Applicant: QUALCOMM INC

    Inventor： GLAZKO SERGUEI ,  ACHOUR BAAZIZ ,  LIN YU-CHUAN

    IPC: H04J3/17 ,  H04B7/26 ,  H04J3/14 ,  H04L1/20 ,  H04Q7/38 ,  H04W4/00

    Abstract: A system and method for detecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a plurality of frames; classifying each of the frames; analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame. In the illustrative embodiment, the step of classifying includes the step of error checking the frames using a cyclic redundancy check (CRC) error checking protocol. The received frames are classified as good frames (G), erasure frames (E), or discontinuous frames (D). A numerical value is assigned to each of the frames based on the classification thereof. Next, the frames are filtered to provide an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmission frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames or a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.

    7.
    发明专利
    未知

    公开(公告)号：DE60023152D1

    公开(公告)日：2006-02-23

    申请号：DE60023152

    申请日：2000-08-10

    Applicant: QUALCOMM INC

    Inventor： CHEN TAO ,  LIN YU-CHUAN

    IPC: H04B1/707 ,  H04B7/26 ,  H04L27/00

    Abstract: The present invention is a novel and improved method and system for performing the pilot frequency tracking operation for coherent demodulation in a system employing a gated pilot signal. In particular, the present invention describes a method and apparatus in which two frequency tracking loops operate in parallel. The first frequency tracking loop performs its tracking operation based on the hypothesis that the received pilot is continuous throughout the frame's duration. The second frequency tracking loop performs the tracking operation based on the hypothesis that the received pilot is discontinuous and is only present for a portion of the frame's duration.

    SYSTEM AND METHOD FOR DTX FRAME DETECTION
    9.
    发明专利
    SYSTEM AND METHOD FOR DTX FRAME DETECTION 未知

    公开(公告)号：CA2409065A1

    公开(公告)日：2002-01-10

    申请号：CA2409065

    申请日：2001-06-28

    Applicant: QUALCOMM INC

    Inventor： LIN YU-CHUAN ,  ACHOUR BAAZIZ ,  GLAZKO SERGUEI

    IPC: H04B7/26 ,  H04J3/14 ,  H04J3/17 ,  H04L1/20 ,  H04Q7/38

    Abstract: A system and method for detecting discontinuous transmission (DTX) frames. The inventive method includes the steps of receiving data transmitted in a plurality of frames; classifying each of the frames; analyzing the classification of a number of successive frames of the received data and providing a metric with respect thereto; and determining, in response to the metric, if a frame is a discontinuous frame. In the illustrative embodiment, the step of classifying includes the step of error checking the frames using a cyclic redundancy check (CRC) error checking protocol. The received frames are classified as good frames (G), erasure frames (E), or discontinuous frames (D). A numerical value is assigned to each of the frames based on the classification thereof. Next, the frames are filtered to provide an output Yn=Yn-1+Xn where 'n' is a frame number, Yn is the filter output for a given frame n, Yn-1 is the filter output for a previous frame, and Xn is a stream of input frames. A threshold is set for the output Yn to facilitate the detection of discontinuous frames. That is, a detection of a discontinuous transmission frame is indicated when a frame is classified as an 'erasure' and the filter output exceeds the threshold. On the detection of a discontinuous frame, the classification of the frame is changed from 'erasure' to 'discontinuous'. By reclassifying improperly classified erasure frames, the mobile receiver is inhibited from requesting retransmission of the frames or a change in the transmit power level. Consequently, network throughput and capacity are optimized and system power is conserved.

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