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1. 发明授权

US06339399B1 Antenna array calibration 有权
标题翻译：天线阵列校准
公开(公告)号：US06339399B1
公开(公告)日：2002-01-15
申请号：US09603836
申请日：2000-06-26
申请人： Sören Andersson , Ulf Forssén , Fredrik Bengt Ovesjö , Sven Oscar Petersson
发明人： Sören Andersson , Ulf Forssén , Fredrik Bengt Ovesjö , Sven Oscar Petersson
IPC分类号： H01Q322
CPC分类号： H01Q3/267
摘要： 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.
摘要翻译：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。

2. 发明授权

US06650910B1 Methods and apparatus in antenna diversity systems for estimation of direction of arrival 有权
标题翻译：用于估计到达方向的天线分集系统中的方法和装置
公开(公告)号：US06650910B1
公开(公告)日：2003-11-18
申请号：US09196117
申请日：1998-11-20
申请人： Sara Mazur , Bo Hagerman , Ulf Forssén , Sören Andersson , Fredrik Ovesjö
发明人： Sara Mazur , Bo Hagerman , Ulf Forssén , Sören Andersson , Fredrik Ovesjö
IPC分类号： H04Q720
CPC分类号： H04B7/086 , H04B7/0894 , H04B7/10
摘要： The present invention relates to radio systems and, more particularly, to a method and apparatus for receiving radio signals with the aid of beams generated by antenna assemblies. For each of the beams in a first of the antenna assemblies there is a beam in the second of the antenna assemblies that covers the same space area. Signals received by the second are delayed relative to signals received by the first of the antenna assemblies. Then signals from the first antenna assembly are combined with signals from the second of the antenna assemblies. The combined signals derive from beams covering the same space area. Each combined signal is then radio received in a joint radio receiver. A DOA-estimation can be calculated on the basis of radio received signals derived from all beams.
摘要翻译：本发明涉及无线电系统，更具体地，涉及一种借助天线组件所产生的波束来接收无线电信号的方法和装置。对于第一天线组件中的每个梁，在天线组件中的第二个天线组件中存在覆盖相同空间区域的梁。由第二个接收的信号相对于由第一天线组件接收的信号而被延迟。然后来自第一天线组件的信号与来自第二天线组件的信号组合。组合信号源于覆盖相同空间区域的光束。然后，每个组合信号在联合无线电接收机中被无线电接收。可以基于从所有波束导出的无线电接收信号来计算DOA估计。

3. 发明授权

US06301238B1 Directional-beam generative apparatus and associated method 失效
标题翻译：定向光束生成装置及相关方法
公开(公告)号：US06301238B1
公开(公告)日：2001-10-09
申请号：US08787758
申请日：1997-01-28
申请人： Bo Hagerman , Ulf Forssén , Thomas Östman , Hans Mähler
发明人： Bo Hagerman , Ulf Forssén , Thomas Östman , Hans Mähler
IPC分类号： H04J300
CPC分类号： H04W16/28 , H01Q3/26 , H01Q25/00
摘要： Directional beam generative apparatus, and an associated method, for a radio communication station forms directional antenna beam patterns for the communication of communication signals with remote communication stations operable in a TDMA communication system. Channels are allocated for effectuation of communications between the radio communication station and the remote stations responsive to indications of locations at which the remote communication stations are indicated to be positioned. Remote communication stations indicated to be positioned within a selected area are allocated to channels formed upon a single carrier.
摘要翻译：用于无线电通信站的定向波束生成装置和相关联的方法形成用于与TDMA通信系统中可操作的远程通信站通信通信信号的定向天线波束模式。分配通道以响应于指示远程通信站被定位的位置的指示来实现无线电通信站和远程站之间的通信。指示定位在所选区域内的远程通信站被分配给形成在单个载波上的信道。

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