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    • 41. 发明申请
    • METHOD AND DEVICE FOR FEEDBACK TRANSMISSION IN A RADIO COMMUNICATION SYSTEM
    • 方法和装置用于在无线通信系统反馈传输
    • WO02043184A1
    • 2002-05-30
    • PCT/DE2001/004291
    • 2001-11-15
    • H01Q1/24H01Q3/26H04B7/06
    • H04B7/0634H01Q1/246H01Q3/2605H04B7/0617H04B7/0663
    • The invention relates to a method for beam shaping in a radio communication system comprising subscriber stations and a base station, and an antenna device with a plurality of antenna elements that emit a downlink signal weighted with a coefficient of an actual weighting vector (Wi) to a subscriber station, the actual weighting vector (Wi) being updated by means of feedback information from the subscriber station (MSk). The subscriber station estimates (S1) the direction of a control vector (Si') in an M-dimensional vector space using measurements of the downlink signals, it detects (S22, S23, S24) a deviation (Di, DELTA i) of the estimated direction from the direction of a reference control vector (Si) and transmits (S11) an information representative of said deviation to the base station. The base station then adapts (S12) the weighting vector (Wi) using said representative information.
    • 本发明涉及一种光束成形在与用户站和钡sisstation的无线通信系统,其具有与多个天线元件,其发射在每种情况下与当前的加权矢量的系数(Wⅰ)加权下行链路信号到用户站,其中,所述电流的加权矢量的天线装置( 无线)基于反馈信息(从用户台MSK)更新。 使用下行链路信号时,它确定(S22,S23,S24)的变化(嘀,嘀)的测量的用户站的估计(S1),控制矢量(S I“)的方向上在M维矢量空间中的推定方向的相比的方向 参考对照载体(Si)和发送(S11)用于改变信息到基站的代表。 使用代表信息的基站调整(S12)的加权矢量(W i)中。
    • 42. 发明申请
    • BASE STATION CLUSTERED ADAPTIVE ANTENNA ARRAY
    • 基站聚合自适应天线阵列
    • WO02007259A2
    • 2002-01-24
    • PCT/US2001/041368
    • 2001-07-13
    • H01Q1/24H01Q3/26H01Q25/00
    • H01Q1/246H01Q3/2605H01Q25/00
    • A base station clustered adaptive antenna array includes a plurality of clusters of antenna elements. Each cluster is spaced away from an adjacent cluster by a first predetermined spacing related to receive-mode beamforming and includes a plurality of transmit-receive antenna elements. Each element within the cluster is spaced away from an adjacent element by a second predetermined spacing related to transmit-mode beamforming. In order to reduce the visual impact of the antenna array, each cluster is included within a single exterior housing or radome. A medial receive-only antenna element may be provided between adjacent clusters to enhance beamforming for reverse link reception.
    • 基站聚类自适应天线阵列包括多个天线元件簇。 每个簇与相邻簇间隔开与接收模式波束形成相关的第一预定间隔,并且包括多个发射 - 接收天线元件。 集群内的每个元件与相邻元件间隔开与发射模式波束形成相关的第二预定间隔。 为了减少天线阵列的视觉冲击,每个集群都包含在单个外壳或天线罩内。 可以在相邻簇之间提供内接收天线元件以增强用于反向链路接收的波束形成。
    • 44. 发明申请
    • COMPACT DUAL-POLARIZED ADAPTIVE ANTENNA ARRAY COMMUNICATION METHOD AND APPARATUS
    • 紧凑的双极化自适应天线阵列通信方法和设备
    • WO01059876A1
    • 2001-08-16
    • PCT/US2001/004142
    • 2001-02-09
    • H01Q1/24H01Q3/26H04B7/04H04B7/06H04B7/08
    • H04B7/0408H01Q1/246H01Q3/2605H04B7/0491H04B7/0615H04B7/0897
    • A wireless communication system base station uses a dual-polarized antenna array to receive two signal groups having orthogonal polarizations. In a preferred embodiment, a first signal group is received using a first sub-array of odd-numbered antenna elements, which a second signal group is received using a second sub-array of even-numbered antenna elements. Dipoles with the odd-numbered elements are selected so that they have a common polarization orthogonal to the dipoles selected in the even-numbered elements. The two signal groups thus have orthogonal polarizations. Base station signal processing hardware performs separate spatial channelestimation for these two groups, and uses the polarization diversity to improve performance in both the uplink and downlink. The use of polarization diversity allows the physical dimensions of the antenna array to be kept to a minimum.
    • 无线通信系统基站使用双极化天线阵列来接收具有正交偏振的两个信号组。 在优选实施例中,使用奇数天线元件的第一子阵列接收第一信号组,使用偶数天线元件的第二子阵列接收第二信号组。 选择具有奇数元素的偶极子,使得它们具有与偶数元件中选择的偶极子正交的共同极化。 因此,两个信号组具有正交偏振。 基站信号处理硬件对这两个组进行单独的空间信道估计,并利用极化分集来提高上行链路和下行链路的性能。 使用极化分集可以使天线阵列的物理尺寸保持最小。
    • 46. 发明申请
    • RADIO BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD
    • 无线基站装置和无线电通信方法
    • WO01054307A1
    • 2001-07-26
    • PCT/JP2000/009261
    • 2000-12-26
    • H01Q1/24H01Q3/26H01Q25/00H04B1/707H04B1/7113H04B1/7117H04B7/04H04B7/08H04B7/10H04B7/26H04W16/28H04W88/08
    • H04B1/7113H01Q1/246H01Q3/2605H01Q25/00H04B1/7117H04B1/712H04B7/0408H04B7/086
    • A matched filter (MF) (110a) of a path searching unit (110) of a searcher (108) subjects a signal received by an AAA (Adaptive Array Antenna) to a spectrum despreading processing. An electric power adding circuit (110c) adds the power of the signal produced by performing common mode addition of the despread signal, and outputs the resultant signal to a delay profile defining circuit (110d) and a threshold judging circuit (111). The outputs from the threshold judging circuits (111) are outputted to a synthesizing circuit (112). The synthesized power value produced by the synthesizing circuit (112) is outputted to a delay profile defining circuit (113). A delay profile is defined based on the synthesized power value. A finger assigning circuit (114) determines a despreading timing for an AAA reception weight operation according to the delay profile.
    • 搜索器(108)的路径搜索单元(110)的匹配滤波器(MF)(110a)对由AAA(自适应阵列天线)接收的信号进行频谱解扩处理。 电力增加电路(110c)将通过进行去扩展信号的共模加法生成的信号的功率相加,并将结果信号输出到延迟分布定义电路(110d)和阈值判定电路(111)。 来自阈值判定电路(111)的输出被输出到合成电路(112)。 由合成电路(112)产生的合成功率值被输出到延迟分布定义电路(113)。 基于合成功率值定义延迟分布。 手指分配电路(114)根据延迟分布确定AAA接收权重操作的解扩定时。
    • 48. 发明申请
    • EARTH-FIXED BEAMS FROM A SPACE VEHICLE
    • 从空间车辆的地球固定的贝
    • WO01035494A1
    • 2001-05-17
    • PCT/US2000/027998
    • 2000-10-10
    • H01Q1/28H01Q3/26H01Q25/00H04B7/204H04B7/195
    • H01Q3/2605H01Q1/288H01Q25/00H04B7/2041
    • A group of phase shifters (Fig.2,140) is coupled between a multiple beam forming network (110) and a phased array antenna. The phase shifters (140) serve to scan the energy beams generated by the phased array antenna (120) over a wide field of view. As beams (Fig. 1,20,25) are scanned from a forward edge of coverage to a nadir point, a switch matrix/power combiner (100) functions to combine beams so that a relatively constant area fixed to the surface of the earth (60) can be illuminated. As the beams move from nadir to an edge of coverage behind the space vehicle, the beams can be separated, thus reducing the need for beam-to-beam hand overof an earth-based subscriber(Fig.1,30).
    • 一组移相器(图2140)耦合在多波束形成网络(110)和相控阵天线之间。 移相器(140)用于在宽视野范围内扫描由相控阵天线(120)产生的能量束。 由于光束(图1,20,25)从覆盖的前沿扫描到最低点,开关矩阵/功率合成器(100)用于组合光束,使得固定在地球表面上的相对恒定的区域 (60)可以被照亮。 当射束从天底移动到空间飞行器后面的覆盖边缘时,波束可以被分离,从而减少了对地球用户的波束对波束切换的需要(图130)。
    • 50. 发明申请
    • COMMUNICATIONS SYSTEM LOAD CONTROL METHODS AND APPARATUS
    • 通信系统负载控制方法和装置
    • WO01020943A1
    • 2001-03-22
    • PCT/US2000/017501
    • 2000-06-26
    • H01Q1/28H01Q3/26H01Q21/29H04B7/185H04Q7/38H04Q7/30
    • H01Q1/28H01Q3/2605H01Q21/29H04B7/18506
    • A communications system (100) includes an aircraft (120) that acts as a repeater between ground equipment (101) and communication units (128) on the ground. The ground equipment (101) includes multiple base transceiver stations (104, 106, 108) that provide traffic channels, control channels, and access channels. The channels are all in a single beam (124) projected from aircraft (120). Relative loading on access channels is influenced by access class lists (200, Fig. 2) assigned to control channels. Access classes can be transferred from one list to another, or they can be removed from a list. Relative loading of traffic channels on the base transceiver stations is influenced by assigning different time offsets to each base transceiver station so that calls can be transferred from one base transceiver station to another.
    • 通信系统(100)包括在地面设备(101)和地面上的通信单元(128)之间充当中继器的飞行器(120)。 地面设备(101)包括提供业务信道,控制信道和接入信道的多个基站收发台(104,106,108)。 这些通道都是从飞机(120)投射的单个梁(124)。 接入信道上的相对负载受分配给控制信道的接入等级列表(200,图2)的影响。 访问类可以从一个列表传输到另一个列表,也可以从列表中删除。 通过为每个基站收发台分配不同的时间偏移量,可以对基站收发台上的业务信道的相对负载进行影响,从而可以将呼叫从一个基站收发台传输到另一个基站。