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公开(公告)号：US20150016327A1
公开(公告)日：2015-01-15
申请号：US14502730
申请日：2014-09-30
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W52/02
CPC classification number: H04W52/0222 , H04B7/0452 , H04W52/0209 , H04W52/0212 , H04W52/0216 , H04W52/0235 , H04W52/46 , H04W88/02 , H04W88/08 , Y02D70/142
Abstract: A power save method, an AP device and an STA device are provided. According to whether power save is allowed in a current TXOP and whether a station STA is newly added in an operation object identifier of a subsequent frame of each frame of the current TXOP, the AP device respectively sets a TXOP power save indication of each frame, and when the TXOP power save indication of the current frame is power save allowed, the STA device determines whether to enter the Doze state according to a judgment result for a doze condition. The adoption of the method and the device can expand the power save application range, and enhance the power save effect.
Abstract translation: 提供省电方法，AP设备和STA设备。 根据当前TXOP中是否允许省电，以及是否在当前TXOP的每帧的后续帧的操作对象标识中新添加站STA，AP设备分别设置每帧的TXOP功率保存指示， 并且当当前帧的TXOP省电指示被允许时，STA设备根据瞌睡状态的判断结果确定是否进入打盹状态。 采用该方法和设备可以扩大节电应用范围，增强节能效果。
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公开(公告)号：US20170141731A1
公开(公告)日：2017-05-18
申请号：US15417019
申请日：2017-01-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei ZHU
CPC classification number: H03D7/165 , H03M1/1245 , H04B1/005 , H04B1/30 , H04L27/26
Abstract: The present disclosure provides a receiver and a signal processing method. The receiver includes: a first frequency mixer, performing frequency mixing on a received signal by using a square wave signal to obtain a first frequency-mixed signal; a first low-pass filter, filtering the first frequency-mixed signal to obtain a first filtered signal; a first analog-to-digital converter, performing analog-to-digital conversion on the first filtered signal to obtain a first sampled signal; and a signal processing unit, estimating, according to the first sampled signal, an information symbol transmitted by a transmit end, where the square wave signal is generated according to a carrier frequency estimation value of the received signal. The receiver according to embodiments of the present disclosure provides better flexibility.
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Patent Agency Ranking
公开(公告)号：US20160205627A1
公开(公告)日：2016-07-14
申请号：US15066939
申请日：2016-03-10
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04W52/0222 , H04B7/0452 , H04W52/0209 , H04W52/0212 , H04W52/0216 , H04W52/0235 , H04W52/46 , H04W88/02 , H04W88/08 , Y02D70/142
Abstract: A power save method, an AP device and an STA device are provided. According to whether power save is allowed in a current TXOP and whether a station STA is newly added in an operation object identifier of a subsequent frame of each frame of the current TXOP, the AP device respectively sets a TXOP power save indication of each frame, and when the TXOP power save indication of the current frame is power save allowed, the STA device determines whether to enter the Doze state according to a judgment result for a doze condition. The adoption of the method and the device can expand the power save application range, and enhance the power save effect.
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公开(公告)号：US20150349862A1
公开(公告)日：2015-12-03
申请号：US14823650
申请日：2015-08-11
Applicant: Huawei Technologies Co., Ltd.
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L51/043 , H04W72/1231 , H04W72/1236 , Y02B60/50 , Y02D70/142 , Y02D70/444
Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，以及接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。
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公开(公告)号：US20170012640A1
公开(公告)日：2017-01-12
申请号：US15270911
申请日：2016-09-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Xiangming KONG , Hufei ZHU
CPC classification number: H03M7/3062 , H03M1/1255 , H04B1/66
Abstract: The present invention relates to a compressive sensing-based signal processing method and apparatus. The method includes: determining distribution, of signal components of an input signal on which frequency mixing has been performed, in a baseband spectrum according to spectral distribution of the input signal; dividing the baseband spectrum according to different signal aliasing patterns formed by the distribution of the signal components, to form multiple frequency bands; determining lowest sampling frequency of the input signal according to the signal aliasing patterns in the frequency bands, and performing sampling on the input signal at sampling frequency greater than the lowest sampling frequency, to obtain a sampled signal; and separately restoring a corresponding signal component in each frequency band of the multiple frequency bands according to the sampled signal, and splicing the signal components restored in the frequency bands, to complete restoration of the input signal.
Abstract translation: 本发明涉及一种基于压缩感知的信号处理方法和装置。 该方法包括：根据输入信号的频谱分布，在基带频谱中确定已进行频率混合的输入信号的信号分量的分布; 根据由信号分量分布形成的不同信号混叠模式划分基带频谱，形成多个频带; 根据频带中的信号混叠模式确定输入信号的最低采样频率，并以大于最低采样频率的采样频率对输入信号进行采样，以获得采样信号; 并且根据采样信号单独地复原多个频带的每个频带中的对应信号分量，以及拼接在频带中恢复的信号分量，以完成输入信号的恢复。
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6.发明申请OFDM SIGNAL MODULATION-DEMODULATION METHOD, DEVICE AND SYSTEM BASED ON COMPRESSED SENSING 有权OFDM信号调制解调方法，基于压缩感知的设备和系统公开(公告)号：US20160072655A1
公开(公告)日：2016-03-10
申请号：US14944010
申请日：2015-11-17
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hufei ZHU , Ganghua YANG
IPC: H04L27/26
CPC classification number: H04L27/2646 , H03M7/3062 , H04L27/2634 , H04L27/2649
Abstract: An OFDM signal modulation method based on compressed sensing is provided, the method includes: acquiring a demodulation parameter of a receiver, where the demodulation parameter includes Tnyq of a periodic square signal of the receiver in sampling, Tnyq is a length of a minimum timeslot during which the periodic square signal maintains a high level or a low level; performing an OFDM modulation on an inputted information symbol to generate an OFDM baseband signal, and controlling a sampling interval TsampleOFDM=Ts/k of the OFDM baseband signal to be integral multiple of Tnyq, where Ts is a duration of valid data in the OFDM baseband signal, and k is the number of sub-carriers in the OFDM baseband signal; and up-converting the OFDM baseband signal and transmitting the processed signal to the receiver. Also provided are a demodulation method, device and system.
Abstract translation: 提供了一种基于压缩感测的OFDM信号调制方法，该方法包括：获取接收机的解调参数，其中解调参数包括采样中接收机的周期性平方信号的Tnyq，Tnyq是最小时隙的长度， 周期性方波信号保持高电平或低电平; 对输入的信息符号执行OFDM调制以产生OFDM基带信号，并且将OFDM基带信号的采样间隔TsampleOFDM = Ts / k控制为Tnyq的整数倍，其中Ts是OFDM基带中的有效数据的持续时间 信号，k是OFDM基带信号中的子载波的数量; 并对OFDM基带信号进行上变频，并将处理的信号发送到接收机。 还提供了一种解调方法，装置和系统。
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公开(公告)号：US20140080420A1
公开(公告)日：2014-03-20
申请号：US14087528
申请日：2013-11-22
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B7/04
CPC classification number: H04B7/0417 , H04B7/0617 , H04B7/0626 , H04L51/043 , H04W72/1231 , H04W72/1236 , Y02B60/50 , Y02D70/142 , Y02D70/444
Abstract: The present invention discloses a method, device, and system for transmitting channel information, pertaining to the field of radio communication. The method for obtaining channel information includes: transmitting, by a beamformer, a request for obtaining channel information to a beamformee within the duration of a current first TXOP; receiving a null feedback frame transmitted by the beamformee within the duration of the current first TXOP; within the validity period of the channel information, if the beamformer obtains a second TXOP, transmitting, within the second TXOP, a channel information indication frame to request the channel information, and receiving the channel information transmitted by the beamformee. The system includes a beamformer and a beamformee. The present invention saves the signaling resources of the beamformer and reduces the power consumption of the beamformee.
Abstract translation: 本发明公开了一种无线通信领域的发送信道信息的方法，装置和系统。 用于获得信道信息的方法包括：波束形成器在当前第一TXOP的持续时间内向波束形成器发送获取信道信息的请求; 在当前第一TXOP的持续时间内接收由波束形成器发送的零反馈帧; 在信道信息的有效期内，如果波束形成器获得第二TXOP，则在第二TXOP内发送信道信息指示帧以请求信道信息，并接收波束形成器发送的信道信息。 该系统包括波束形成器和波束形成器。 本发明节省了波束形成器的信令资源，降低了波束形成器的功耗。
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