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公开(公告)号：US10128922B2
公开(公告)日：2018-11-13
申请号：US15389754
申请日：2016-12-23
Applicant: Futurewei Technologies, Inc.
Inventor： Zhengxiang Ma , Leonard Piazzi , Renjian Zhao , Jian Wang
Abstract: Embodiments are provided for cross-polarized antennas design with different down tilt angles that support versatile functionality, such as for MIMO or beamforming. An embodiment antenna circuit comprises a baseband signal processor, a pair of RF transmitters coupled to the baseband signal processor, a pair of PAs coupled to the RF transmitters, a 90°/180° hybrid coupler coupled to the RF transmitters, a pair of duplexers and two antennas coupled to the PAs. The two antennas are down tilted at different down tilt angles. A pair of signals is generated using the baseband signal processor, transmitted by the RF transmitters, and amplified using the PAs. Additionally, a 90° or 180° phase difference is introduced into the signals using the 90°/180° hybrid coupler. After the amplifying and introducing the phase difference, the signals are polarized at two different polarizations and down tilted at different down tilt angles using the two antennas.
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公开(公告)号：US09979447B2
公开(公告)日：2018-05-22
申请号：US14987513
申请日：2016-01-04
Applicant: Futurewei Technologies, Inc.
Inventor： Zhengxiang Ma , Leonard Piazzi , Huairen Yi
IPC: H04B7/02 , H04B7/0452 , H01Q21/00 , H01Q21/29 , H01Q25/00 , H04B7/0408 , H01Q3/40 , H01Q21/08 , H04B7/06 , H04B7/10
CPC classification number: H04B7/0452 , H01Q3/40 , H01Q21/0006 , H01Q21/08 , H01Q21/293 , H01Q25/00 , H01Q25/001 , H04B7/0408 , H04B7/0617 , H04B7/10
Abstract: A RF distribution network for split beam antennas is disclosed. The split beam antennas may include four-column cross-polarized user specific tilt antennas implemented in a 4T4R or 4T8R system. A RF distribution network may provide transmit signals from transmitters to antennas while also providing receive signals from the antennas. A RF distribution network may include 180° 6.9 dB combiners coupled to the antennas and also coupled 90° hybrids. A 180° 6.9 dB combiner may include a transmission network with transmission lines in a 4T4R system. Alternatively, a 180° 6.9 dB combiner may include a transmission network with transmit and receive filters in a 4T8R system. The transmission network couples the transmit filter and two filters by at least three λ/4 transmission lines. A transmission network provides isolation between two receive signal paths and, at the same time, provides power splitting of transmitter power to two duplexed transmit signal paths.
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Patent Agency Ranking
公开(公告)号：US20160149684A1
公开(公告)日：2016-05-26
申请号：US14946624
申请日：2015-11-19
Applicant: Futurewei Technologies, Inc.
Inventor： Renjian Zhao , Zhengxiang Ma , Leonard Piazzi , Jian Wang , Weimin Xiao
CPC classification number: H04L5/0053 , H04B7/0413 , H04B7/0626 , H04B7/063 , H04L5/0023 , H04L5/0048 , H04W24/10
Abstract: A method for providing feedback information includes receiving a configuration of a plurality of offset values, determining the feedback information in accordance with at least one measurement made by a user equipment and with the plurality of offset values, and sending the feedback information to a network controller.
Abstract translation: 一种用于提供反馈信息的方法包括接收多个偏移值的配置，根据用户设备和多个偏移值进行的至少一次测量来确定反馈信息，并将反馈信息发送到网络控制器 。
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公开(公告)号：US20160028455A1
公开(公告)日：2016-01-28
申请号：US14609251
申请日：2015-01-29
Applicant: Futurewei Technologies, Inc.
Inventor： Zhengxiang Ma , Leonard Piazzi , Renjian Zhao , Jian Wang
CPC classification number: H04B7/0469 , H01Q1/246 , H01Q25/001 , H03F1/02 , H03F3/24 , H04B1/04 , H04B7/0456 , H04B7/0617 , H04B7/10 , H04B2001/045 , H04L5/14
Abstract: Embodiments are provided for cross-polarized antennas design with different down tilt angles that support versatile functionality, such as for MIMO or beamforming. An embodiment antenna circuit comprises a baseband signal processor, a pair of RF transmitters coupled to the baseband signal processor, a pair of PAs coupled to the RF transmitters, a 90°/180° hybrid coupler coupled to the RF transmitters, a pair of duplexers and two antennas coupled to the PAs. The two antennas are down tilted at different down tilt angles. A pair of signals is generated using the baseband signal processor, transmitted by the RF transmitters, and amplified using the PAs. Additionally, a 90° or 180° phase difference is introduced into the signals using the 90°/180° hybrid coupler. After the amplifying and introducing the phase difference, the signals are polarized at two different polarizations and down tilted at different down tilt angles using the two antennas.
Abstract translation: 为具有不同下倾角的交叉极化天线设计提供实施例，其支持多功能功能，例如用于MIMO或波束形成。 实施例天线电路包括基带信号处理器，耦合到基带信号处理器的一对RF发射器，耦合到RF发射器的一对PA，耦合到RF发射器的90°/ 180°混合耦合器，一对双工器 和耦合到PA的两个天线。 两个天线在不同的向下倾斜角度下倾斜。 使用由RF发射机发送的基带信号处理器生成一对信号，并使用PA进行放大。 另外，使用90°/ 180°混合耦合器将90°或180°的相位差引入信号。 在放大和引入相位差之后，信号以两个不同的极化极化，并使用两个天线以不同的向下倾斜角向下倾斜。
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公开(公告)号：US09209523B2
公开(公告)日：2015-12-08
申请号：US13774945
申请日：2013-02-22
Applicant: FutureWei Technologies, Inc.
Inventor： Zhengxiang Ma , Leonard Piazzi , Alexis Pierides
CPC classification number: H01Q19/10 , H01Q1/02 , H01Q1/246 , H01Q1/42 , H01Q3/26 , H01Q19/106 , H01Q21/205 , H04W84/042
Abstract: Multiple radio frequency (RF) modules can be arranged in a multi-sector configuration. Each RF modules may have a wedge-like shape such that the RF modules may be adjacently affixed to one another in spherical cluster, thereby providing multi-sector coverage while maintaining a relatively compact active antenna installation. Additionally, multiple clusters of RF modules can be arranged in an array to provide beamforming and/or other advances antenna functionality.
Abstract translation: 多射频（RF）模块可以以多扇区配置来布置。 每个RF模块可以具有楔形形状，使得RF模块可以以球形簇相互相邻地附接，从而提供多扇区覆盖，同时保持相对紧凑的有源天线安装。 另外，多个RF模块可以排列成阵列以提供波束成形和/或其他前进的天线功能。
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26.发明授权Methods and systems for crest factor reduction in multi-carrier multi-channel architectures 有权多载波多通道架构波峰因数降低的方法和系统公开(公告)号：US09065605B2
公开(公告)日：2015-06-23
申请号：US13802028
申请日：2013-03-13
Applicant: FutureWei Technologies, Inc.
Inventor： Leonard Piazzi , Zhengxiang Ma , Jian Wang
IPC: H04L1/00
CPC classification number: H04L1/0033 , H04B7/0617 , H04L27/2623
Abstract: Crest factor reduction (CFR) can be performed on the various carriers of a multi-carrier multi-channel signal prior to modulation and/or beamforming operations in order to improve signal-to-noise ratios (SNRs) in the resulting wireless communication. More specifically, clipping noise is introduced into each of the individual carrier signals prior to application of the beamforming weight vectors, as well as prior to carrier modulation, thereby causing the beamforming weight vectors to be applied to both the signal and the clipping noise. As a result, variations between the signal antenna pattern and the clipping noise antenna pattern are reduced, which mitigates and/or reduces low SNR spatial locations in which the signal would have been drowned out by the clipping noise under conventional CFR.
Abstract translation: 在调制和/或波束形成操作之前，可以在多载波多信道信号的各种载波上执行波峰因数降低（CFR），以便提高所得无线通信中的信噪比（SNR）。 更具体地，在施加波束成形加权矢量之前以及在载波调制之前，将削波噪声引入到每个单独的载波信号中，从而使波束成形加权向量被应用于信号和限幅噪声。 结果，减小了信号天线方向图和削波噪声天线方向图之间的变化，这减小了和/或降低了在常规CFR下信号将被削波噪声淹没的低SNR空间位置。
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公开(公告)号：US20130225222A1
公开(公告)日：2013-08-29
申请号：US13774945
申请日：2013-02-22
Applicant: FutureWei Technologies, Inc.
Inventor： Zhengxiang Ma , Leonard Piazzi , Alexis Pierides
CPC classification number: H01Q19/10 , H01Q1/02 , H01Q1/246 , H01Q1/42 , H01Q3/26 , H01Q19/106 , H01Q21/205 , H04W84/042
Abstract: Multiple radio frequency (RF) modules can be arranged in a multi-sector configuration. Each RF modules may have a wedge-like shape such that the RF modules may be adjacently affixed to one another in spherical cluster, thereby providing multi-sector coverage while maintaining a relatively compact active antenna installation. Additionally, multiple clusters of RF modules can be arranged in an array to provide beamforming and/or other advances antenna functionality.
Abstract translation: 多射频（RF）模块可以以多扇区配置来布置。 每个RF模块可以具有楔形形状，使得RF模块可以以球形簇相互相邻地附接，从而提供多扇区覆盖，同时保持相对紧凑的有源天线安装。 另外，多个RF模块可以排列成阵列以提供波束成形和/或其他前进的天线功能。
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