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公开(公告)号：US20180279345A1
公开(公告)日：2018-09-27
申请号：US15990428
申请日：2018-05-25
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Ming Jia
CPC classification number: H04W72/1273 , H04L1/00 , H04L1/1887 , H04L5/0048 , H04L5/14 , H04L25/0226 , H04W24/02 , H04W72/1289
Abstract: System and method embodiments are provided for channel sounding in a frequency division duplex (FDD) system. The embodiments enable a transmission point (TP) to determine channel information about a downlink channel from an uplink channel sounding signal received on the downlink channel frequency band during a time window reserved for uplink channel sounding on the downlink channel frequency band. In an embodiment, a method in a controller includes determining with the controller a schedule for an uplink sounding window in a downlink frequency band, wherein the uplink sounding window comprises a transmission window in at least a partial downlink frequency band that is reserved for uplink channel sounding, instructing a TP to signal the schedule to at least one wireless device in a coverage area of the TP, receiving a channel sounding signal in the downlink frequency band, and obtaining downlink channel state information from the channel sounding signal.
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公开(公告)号：US20180270747A1
公开(公告)日：2018-09-20
申请号：US15988690
申请日：2018-05-24
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Peiying Zhu , Ming Jia , Wen Tong
Abstract: A method of transmitting includes categorizing a transmission between the first device and a second device as one of a plurality of transmission types, and selecting an air interface from a plurality of air interface candidates in accordance with the transmission as categorized. The method also includes sending the transmission to the second device using the selected air interface.
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公开(公告)号：US20180270027A1
公开(公告)日：2018-09-20
申请号：US15987683
申请日：2018-05-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Ming Jia
CPC classification number: H04L5/001 , H04B7/2615 , H04L5/0023 , H04L5/0028 , H04L5/0035 , H04L5/006 , H04L5/0064 , H04L27/2602 , H04L27/2607 , H04W28/06 , H04W72/00 , H04W72/02 , H04W72/04 , H04W72/042
Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
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公开(公告)号：US20180241519A1
公开(公告)日：2018-08-23
申请号：US15960210
申请日：2018-04-23
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Ming Jia
CPC classification number: H04L5/001 , H04B7/2615 , H04L5/0023 , H04L5/0028 , H04L5/0035 , H04L5/006 , H04L5/0064 , H04L27/2602 , H04L27/2607 , H04W28/06 , H04W72/00 , H04W72/02 , H04W72/04 , H04W72/042
Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
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公开(公告)号：US20180083760A1
公开(公告)日：2018-03-22
申请号：US15825191
申请日：2017-11-29
Applicant: Huawei Technologies Co., Ltd.
Inventor： Ming Jia , Jianglei Ma , Peiying Zhu , Hao Hu
CPC classification number: H04L5/02 , H04L5/0003 , H04L5/04 , H04L5/12 , H04L27/0008 , H04L27/04 , H04L27/06 , H04L27/34 , H04L27/3488
Abstract: A method for operating a transmitting device using semi-orthogonal multiple access (SOMA) includes determining power allocations and sub-quadrature amplitude modulation (sub-QAM) allocations for a first receiving device and a second receiving device in accordance with channel information associated with the first receiving device and the second receiving device, and transmitting information about a first power allocation for the first receiving device, and a first sub-QAM allocation for the first receiving device to the first receiving device.
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Patent Agency Ranking
46.发明授权公开(公告)号：US09787515B2
公开(公告)日：2017-10-10
申请号：US15161023
申请日：2016-05-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Usa Vilaipornsawai , Javad Abdoli , Jianglei Ma , Ming Jia
CPC classification number: H04L27/2627 , H04L5/0007 , H04L27/2607 , H04L27/34 , H04L27/345
Abstract: Embodiments are provided for guard band utilization for synchronous and asynchronous communications in wireless networks. A user equipment (UE) or a network component transmits symbols on data bands assigned for primary communications. The data bands are separated by a guard band having smaller bandwidth than the data bands. The UE or network component further modulates symbols for secondary communications with a spectrally contained wave form, which has a smaller bandwidth than the guard band. The spectrally contained wave form is achieved with orthogonal frequency-division multiplexing (OFDM) modulation or with joint OFDM and Offset Quadrature Amplitude Modulation (OQAM) modulation. The modulated symbols for the secondary communications are transmitted within the guard band.
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公开(公告)号：US09735852B2
公开(公告)日：2017-08-15
申请号：US14874190
申请日：2015-10-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
CPC classification number: H04B7/0617 , H01Q25/00 , H04B7/024 , H04B7/0456 , H04B7/0632 , H04B7/0639 , H04W8/24 , H04W48/08 , H04W88/08
Abstract: In accordance with an embodiment, a method of operating a base station configured to communicate with at least one user device includes transmitting a reference signal to the at least one user device, receiving channel quality information from the at least one user device, and forming a beam based on the channel quality information received from the at least one user device.
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公开(公告)号：US20160192353A1
公开(公告)日：2016-06-30
申请号：US14836538
申请日：2015-08-26
Applicant: Huawei Technologies Co., Ltd.
Inventor： Javad Abdoli , Ming Jia , Jianglei Ma
CPC classification number: H04W72/0446 , H04L5/0007 , H04L5/0066 , H04L27/2636 , H04L27/264 , H04L27/2647 , H04L27/265
Abstract: Cyclic prefix based OFDM (CP-OFDM) signals can be filtered using a digital filter whose filter length exceeds the length of a cyclic prefix in CP-OFDM symbols of the signal. In one example, the duration of the filtered CP-OFDM symbol may be expressed by the following equation: M=N+L−1, where M is the duration of the filtered CP-OFDM signal, N is a duration of the CP-OFDM signal, and L is the filter length of the digital filter. Digitally filtering the CP-OFDM signal may include convolving a filtering signal with the CP-OFDM signal. The digital filter may include a finite impulse response (FIR) filter or an infinite impulse response (IIR) filter. In some embodiments, a different digital filter may be applied to each sub-band of the CP-OFDM signal.
Abstract translation: 可以使用滤波器长度超过信号的CP-OFDM符号中的循环前缀的长度的数字滤波器来对基于循环前缀的OFDM（CP-OFDM）信号进行滤波。 在一个示例中，滤波的CP-OFDM符号的持续时间可以由以下等式表示：M = N + L-1，其中M是经滤波的CP-OFDM信号的持续时间，N是CP- OFDM信号，L是数字滤波器的滤波器长度。 对CP-OFDM信号的数字滤波可以包括用CP-OFDM信号卷积滤波信号。 数字滤波器可以包括有限脉冲响应（FIR）滤波器或无限脉冲响应（IIR）滤波器。 在一些实施例中，可以将不同的数字滤波器应用于CP-OFDM信号的每个子带。
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公开(公告)号：US11824726B2
公开(公告)日：2023-11-21
申请号：US17559221
申请日：2021-12-22
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Hang Zhang , Ming Jia
IPC: H04L41/12 , H04L45/02 , H04L43/08 , H04L43/0811 , H04L41/122 , H04L43/20 , H04L41/0895 , H04L45/28 , H04W84/18 , H04L5/00 , H04L43/067
CPC classification number: H04L41/12 , H04L5/006 , H04L41/0895 , H04L41/122 , H04L43/067 , H04L43/08 , H04L43/0811 , H04L43/20 , H04L45/02 , H04L45/28 , H04W84/18
Abstract: Systems and methods are provided for identifying an available infrastructure network topology consisting of a set of available network links and a set of available network nodes of a communication network. In the systems and methods, a network node of the communication network is operative to transmit a learning schedule to a plurality of network nodes interconnected by a set of network links of the communication network. The network node receives from each of the plurality of network nodes a communication node record including network performance observations observed by that network node based on the learning schedule transmitted to that network node. Based on the received communication node records, the network node identifies a set of available network links from the set of network links and the set of available network nodes corresponding to the set of available network links.
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公开(公告)号：US10862634B2
公开(公告)日：2020-12-08
申请号：US14627836
申请日：2015-02-20
Applicant: Huawei Technologies Co., Ltd.
Inventor： Jianglei Ma , Ming Jia
Abstract: Embodiments are provided for supporting variable sub-carrier spacing and symbol duration for transmitting OFDM or other waveform symbols and associated cyclic prefixes. The symbol duration includes the useful symbol length and its associated cyclic prefix length. The variable sub-carrier spacing and symbol duration is determined via parameters indicating the sub-carrier spacing, useful symbol length, and cyclic prefix length. An embodiment method, by a network or a network controller, includes establishing a plurality of multiple access block (MAB) types defining different combinations of sub-carrier spacing and symbol duration for waveform transmissions. The method further includes partitioning a frequency and time plane of a carrier spectrum band into a plurality of MAB regions comprising frequency-time slots for the waveform transmissions. The MAB types are then selected for the MAB regions, wherein one MAB type is assigned to one corresponding MAB region.
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