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Patent Agency Ranking
公开(公告)号：US10187243B2
公开(公告)日：2019-01-22
申请号：US15165583
申请日：2016-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Zhu , Yunbao Zeng , Hui Zhao , Long Zhao
Abstract: The present invention discloses a preamble sequence generating method and device, which are used to avoid a problem, caused by damages to a preamble sequence resulting from interference in an NB-PLC system, that it is difficult for a receive end to correctly perform timing synchronization. The method includes: determining a quantity m of orthogonal frequency division multiplexing OFDM symbols that constitute a single pattern in a preamble sequence, where m is not less than 2; and generating a preamble sequence according to m, so that every m OFDM symbols that are in the generated preamble sequence and consecutive in a time domain constitute a single pattern, and the generated preamble sequence includes at least two patterns, where the patterns are different from each other. Embodiments of the present invention further provide a timing synchronization method and device.
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2.发明申请PREAMBLE SEQUENCE GENERATING METHOD, TIMING SYNCHRONIZATION METHOD, AND DEVICE 审中-公开前导序列生成方法，时序同步方法和装置公开(公告)号：US20160277230A1
公开(公告)日：2016-09-22
申请号：US15165583
申请日：2016-05-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Wei Zhu , Yunbao Zeng , Liangchuan Kang , Hui Zhao , Long Zhao
CPC classification number: H04L27/2692 , H04B3/54 , H04L5/22 , H04L27/2613 , H04L27/2662 , H04L27/2688
Abstract: The present invention discloses a preamble sequence generating method and device, which are used to avoid a problem, caused by damages to a preamble sequence resulting from interference in an NB-PLC system, that it is difficult for a receive end to correctly perform timing synchronization. The method includes: determining a quantity m of orthogonal frequency division multiplexing OFDM symbols that constitute a single pattern in a preamble sequence, where m is not less than 2; and generating a preamble sequence according to m, so that every m OFDM symbols that are in the generated preamble sequence and consecutive in a time domain constitute a single pattern, and the generated preamble sequence includes at least two patterns, where the patterns are different from each other. Embodiments of the present invention further provide a timing synchronization method and device.
Abstract translation: 本发明公开了一种前导序列生成方法和装置，其用于避免由于NB-PLC系统中的干扰而导致的前导序列的损坏而导致的问题，接收端难以正确地执行定时同步 。 该方法包括：确定在前导码序列中构成单个模式的正交频分复用OFDM符号的数量m，其中m不小于2; 并根据m产生前同步码序列，使得在所生成的前导码序列中并且在时域中连续的每m个OFDM符号构成单个模式，并且所生成的前导序列包括至少两个模式，其中模式不同于 彼此。 本发明的实施例还提供一种定时同步方法和装置。
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公开(公告)号：US08855251B2
公开(公告)日：2014-10-07
申请号：US13862717
申请日：2013-04-15
Applicant: Huawei Technologies Co., Ltd.
Inventor： Yunbao Zeng , Chengquan Huang
CPC classification number: H04L27/3809 , H04B17/26 , H04B17/318 , H04W52/52
Abstract: A power adjusting method and apparatus provided by embodiments of the present invention relate to the field of communications. The power adjusting method of this embodiment includes: receiving a signal from a sending end, where the signal includes a cyclic prefix (CP) signal; detecting and acquiring first receiving power and second receiving power of the CP signal, where the first receiving power is average power of N sampling points of the CP signal, and the second receiving power is average power of M sampling points of the CP signal; after determining that a ratio of the first receiving power to target power is greater than a first preset threshold, adjusting signal power magnification; and after determining that the ratio of the second receiving power to the target power is greater than a second preset threshold, adjusting the signal power magnification again.
Abstract translation: 由本发明的实施例提供的功率调节方法和装置涉及通信领域。 本实施例的功率调整方法包括：从发送端接收信号，其中所述信号包括循环前缀（CP）信号; 检测并获取CP信号的第一接收功率和第二接收功率，其中第一接收功率是CP信号的N个采样点的平均功率，第二接收功率是CP信号的M个采样点的平均功率; 在确定第一接收功率与目标功率的比率大于第一预设阈值之后，调整信号功率倍率; 并且在确定所述第二接收功率与所述目标功率的比率大于第二预设阈值之后，再次调整所述信号功率倍率。
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公开(公告)号：US08818313B2
公开(公告)日：2014-08-26
申请号：US13964952
申请日：2013-08-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Qin , Junshi Chen , Yunbao Zeng
CPC classification number: H03G3/20 , H04W52/04 , H04W52/243 , H04W52/52
Abstract: The present invention relates to the field of communication technologies and discloses a method and an apparatus for auto gain control (AGC) in a radio receiver, which can ensure that a radio frequency device, an analog device, and various nodes in a digital domain are non-saturated and that useful signal power is adjusted to a certain power level. According to the present invention, total signal power on an air interface is subtracted from a preset first target power to obtain an analog auto gain control (AAGC) gain, and then a second target power is subtracted from an interference signal power in a digital baseband to obtain a digital auto gain control (DAGC) gain.
Abstract translation: 本发明涉及通信技术领域，并且公开了一种无线电接收机中的自动增益控制（AGC）的方法和装置，其可以确保射频设备，模拟设备和数字域中的各种节点是 非饱和，有用的信号功率被调整到一定的功率水平。 根据本发明，从预设的第一目标功率中减去空中接口上的总信号功率，以获得模拟自动增益控制（AAGC）增益，然后从数字基带中的干扰信号功率中减去第二目标功率 以获得数字自动增益控制（DAGC）增益。
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公开(公告)号：US20130324065A1
公开(公告)日：2013-12-05
申请号：US13964952
申请日：2013-08-12
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianhua Qin , Junshi Chen , Yunbao Zeng
IPC: H03G3/20
CPC classification number: H03G3/20 , H04W52/04 , H04W52/243 , H04W52/52
Abstract: The present invention relates to the field of communication technologies and discloses a method and an apparatus for auto gain control (AGC) in a radio receiver, which can ensure that a radio frequency device, an analog device, and various nodes in a digital domain are non-saturated and that useful signal power is adjusted to a certain power level. According to the present invention, total signal power on an air interface is subtracted from a preset first target power to obtain an analog auto gain control (AAGC) gain, and then a second target power is subtracted from an interference signal power in a digital baseband to obtain a digital auto gain control (DAGC) gain.
Abstract translation: 本发明涉及通信技术领域，并且公开了一种无线电接收机中的自动增益控制（AGC）的方法和装置，其可以确保射频设备，模拟设备和数字域中的各种节点是 非饱和，有用的信号功率被调整到一定的功率水平。 根据本发明，从预设的第一目标功率中减去空中接口上的总信号功率，以获得模拟自动增益控制（AAGC）增益，然后从数字基带中的干扰信号功率中减去第二目标功率 以获得数字自动增益控制（DAGC）增益。
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