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45 条记录 (耗时 0.015 秒)

    METHODS AND APPARATUS FOR INCLUDING COMMUNICATION MODE INFORMATION (TDD OR FDD) IN A TRANSMISSION FRAME FOR SYSTEM ACQUISITION
    12.
    发明授权
    METHODS AND APPARATUS FOR INCLUDING COMMUNICATION MODE INFORMATION (TDD OR FDD) IN A TRANSMISSION FRAME FOR SYSTEM ACQUISITION 有权
    METHOD AND APPARATUS FOR在传输帧ACQUIRING通信模式信息（TDD或FDD）进行系统捕获

    公开(公告)号：EP2204062B1

    公开(公告)日：2011-02-23

    申请号：EP08799422.4

    申请日：2008-09-10

    申请人： QUALCOMM Incorporated

    发明人： WANG, Michael Mao

    IPC分类号： H04W48/08 ,  H04W56/00

    CPC分类号： H04B7/2615 ,  H04W48/12

    摘要： Methods and apparatus for including mode information in a wireless transmission frame, which is useful for system acquisition. In particular, a first information bit is provided in a preamble of a transmission frame, where the bit is configured to indicate that a wireless communication system is operating according to either a time division duplex (TDD) mode or a frequency division duplex (FDD) mode. The addition of a single bit minimally affects the resources of the preamble. Additionally, another bit resource already present in the preamble for normally communicating whether FDD transmissions are full duplex or half-duplex transmissions, may be further allocated to indicate partitioning information concerning TDD mode transmissions when the first bit indicates TDD mode, thus affording additional information communicated in the frame without increasing preamble resources.

    APPARATUS AND METHODS FOR TIMING RECOVERY IN A WIRELESS TRANSCEIVER
    14.
    发明公开
    APPARATUS AND METHODS FOR TIMING RECOVERY IN A WIRELESS TRANSCEIVER 审中-公开
    装置及方法的无线传输/接收装置卒中恢复

    公开(公告)号：EP1958412A2

    公开(公告)日：2008-08-20

    申请号：EP06850961.1

    申请日：2006-12-14

    申请人： Qualcomm, Incorporated

    发明人： WANG, Michael Mao ,  VRCELJ, Bojan ,  LING, Fuyun ,  VIJAYAN, Rajiv

    IPC分类号： H04L27/26

    CPC分类号： H04L27/2656 ,  H04L27/261 ,  H04L27/2675

    摘要： Apparatus and methods for use in a wireless communication system are disclosed for recovery of timing tracking in a device, such as a wireless transceiver, after decoding errors occur due to incorrect timing tracking. In particular, the disclosed methods and apparatus recover timing tracking by monitoring a decoded signal in the transceiver for decoding errors occurring during a first frame, determining whether a number of decoding errors is greater than a predetermined amount, reacquiring a first pilot channel at a start of a subsequently received second frame when the number of decoding errors is determined to be greater than the predetermined amount, and resetting timing tracking of the transceiver based on the reacquired first pilot channel.

    METHODS AND APPARATUS FOR INITIAL ACQUISITION GAIN CONTROL IN A COMMUNICATION SYSTEM
    19.
    发明授权
    METHODS AND APPARATUS FOR INITIAL ACQUISITION GAIN CONTROL IN A COMMUNICATION SYSTEM 有权

    公开(公告)号：EP2130342B1

    公开(公告)日：2018-07-04

    申请号：EP08732603.9

    申请日：2008-03-20

    申请人： QUALCOMM Incorporated

    发明人： WANG, Michael Mao

    IPC分类号： H04L27/26 ,  H03G3/20

    CPC分类号： H04L27/2647 ,  H03G3/005 ,  H03G3/3078

    摘要： Methods and apparatus for initial acquisition gain control in a communication system a method for use in a wireless communication system are disclosed. A disclosed methodology includes measuring the power of a signal received by a transceiver a number of times over a prescribed time period, the signal including a number of symbols. A gain of the transceiver is unidirectionally adjusted when a currently measured power is greater than a previously measured power during the prescribed time period until a maximal power level is measured. By adjusting the gain to accommodate a maximal power value, which is the same as the power level of an acquisition pilot symbol, overshoot and distortion by the transceiver are avoided during initial timing and frequency acquisition. Corresponding apparatus are also disclosed.

    CONTROL CHANNEL DESIGN FOR MACHINE TYPE COMMUNICATIONS
    20.
    发明公开
    CONTROL CHANNEL DESIGN FOR MACHINE TYPE COMMUNICATIONS 有权
    机器型通信的控制通道设计

    公开(公告)号：EP3210331A1

    公开(公告)日：2017-08-30

    申请号：EP15788302.6

    申请日：2015-10-20

    申请人： Qualcomm Incorporated

    发明人： CHEN, Wanshi ,  XU, Hao ,  WANG, Michael Mao ,  GAAL, Peter

    IPC分类号： H04L5/00 ,  H04W4/00 ,  H04W72/04

    CPC分类号： H04W72/042 ,  H04L5/0053 ,  H04L5/0087 ,  H04W4/70 ,  H04W24/08 ,  H04W28/0215

    摘要： Aspects of the present disclosure provide techniques that may be applied in systems to allow for communication over a control channel utilizing a relatively narrow band (e.g., six physical resource blocks) based search space. An exemplary method, performed by a user equipment, generally includes identifying, within a subframe, a first search space to monitor for a downlink control channel that occupies a first number of physical resource blocks (PRBs) that represents a narrowband size and monitoring at least the first search space for the downlink control channel transmitted in the subframe.

    摘要翻译： 本公开的各方面提供了可应用于系统中以允许利用基于相对窄带（例如，六个物理资源块）的搜索空间在控制信道上进行通信的技术。 由用户设备执行的示例性方法通常包括在子帧内识别第一搜索空间以监视占据表示窄带大小的第一数量的物理资源块（PRB）的下行链路控制信道并且至少监视 在子帧中发送的用于下行链路控制信道的第一搜索空间。