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    • 2. 发明授权
    • System and method for indoor coverage of user equipment terminals
    • 用户设备终端的室内覆盖系统和方法
    • US08055300B2
    • 2011-11-08
    • US11896038
    • 2007-08-29
    • Sören AnderssonJiuhui Du
    • Sören AnderssonJiuhui Du
    • H04M1/00
    • H04B7/0874H04B7/082H04B17/318H04W52/42
    • Devices and methods to use base stations to communicate with user equipment (UE) terminals in an indoor setting are disclosed. For example, user equipments such as mobile telephone devices may be used in a building with multiple floors. The building may be supplied with antenna elements organized into antenna groups with each group serving an area of the building—a floor for example. The base station, utilizing the antenna groups, communicates with the UE terminals via one or more radio resources. The base station manages radio resources to communicate with multiple UE terminals. The base station selectively activates and deactivates the antenna groups to reduce multiple access interference and to efficiently utilize the radio resources.
    • 公开了在室内设置中使用基站与用户设备(UE)终端通信的装置和方法。 例如,可以在具有多个楼层的建筑物中使用诸如移动电话设备的用户设备。 可以向建筑物提供组织成天线组的天线元件,每个组服务于建筑物的一个区域 - 例如地板。 利用天线组的基站经由一个或多个无线电资源与UE终端进行通信。 基站管理无线资源,与多个UE终端进行通信。 基站选择性地激活和去激活天线组以减少多址接入干扰并有效利用无线电资源。
    • 7. 发明授权
    • Adaptive sectorization
    • 适应性划分
    • US06470177B1
    • 2002-10-22
    • US09549557
    • 2000-04-14
    • Sören AnderssonHenrik DamMagnus BergMarc FrerichFelix AhrensRainer Bormann
    • Sören AnderssonHenrik DamMagnus BergMarc FrerichFelix AhrensRainer Bormann
    • H04B102
    • H04W16/28H01Q3/2605H04B7/0617H04W16/06H04W16/24H04W48/12
    • The present invention relates generally to the problems associated with sectorization of cells in cellular communications systems, and more particularly to interference between sectors. The invention provides the possibility of flexibly distributing hardware between sectors in a cell by allowing one transmitter to be shared by all the sectors. Since a beacon signal must be transmitted to each sector in a cell, it can be combined with the signal from the transmitter before being transmitted from an antenna. Thus it is necessary to only deploy one carrier for the beacon. Interference reduction in sectored sites is also improved. In addition, different antenna patterns may be combined to provide the site with all kinds of coverage patterns. Downlink diversity is furthermore attainable by having overlapping uncorrelated antenna patterns.
    • 本发明一般涉及与蜂窝通信系统中的小区扇区化有关的问题,更具体地涉及扇区之间的干扰。 本发明提供了通过允许一个发射机被所有扇区共享来在小区中的扇区之间灵活地分配硬件的可能性。 由于必须将信标信号发送到小区中的每个扇区,所以它可以在从天线发送之前与来自发射机的信号组合。 因此,仅需要为信标部署一个载波。 部门现场干扰减少也有所改善。 此外,可以组合不同的天线图案以向该站点提供各种覆盖模式。 通过具有重叠的不相关的天线方式,还可以获得下行链路分集。
    • 9. 发明授权
    • Antenna array calibration
    • 天线阵列校准
    • US06339399B1
    • 2002-01-15
    • US09603836
    • 2000-06-26
    • Sören AnderssonUlf ForssénFredrik Bengt OvesjöSven Oscar Petersson
    • Sören AnderssonUlf ForssénFredrik Bengt OvesjöSven Oscar Petersson
    • H01Q322
    • H01Q3/267
    • A method and a system for calibrating the reception and transmission of an antenna array for use in a cellular communication system is disclosed. The calibration of the reception of the antenna array is performed by injecting a single calibration signal into each of a number of receiving antenna sections, in parallel. The signals are collected after having passed receiving components that might have distorted the phase and amplitude. Correction factors are generated and applied to received signals. The calibration of the transmission of the antenna array is preformed in a similar way. A single calibration signal is generated and injected into each of a number of transmitting antenna sections, one at a time. The signals are collected, one at a time, after having passed transmitting components that might have distorted the phase and amplitude. Correction factors are generated and applied to signals that are to be transmitted.
    • 公开了一种用于校准在蜂窝通信系统中使用的天线阵列的接收和发送的方法和系统。 天线阵列的接收的校准是通过将单个校准信号并入多个接收天线部分中的每一个而进行的。 在经过接收可能使相位和幅度失真的分量之后,信号被收集。 校正因子产生并应用于接收信号。 天线阵列的传输的校准以类似的方式进行。 单个校准信号被产生并注入到多个发射天线部分中的每一个中,一次一个。 在通过可能使相位和幅度失真的发射部件之后,一个接一个地收集信号。 产生校正因子并应用于要发送的信号。