专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20050148370A1 Method and apparatus for beam steering in a wireless communications systems 审中-公开
标题翻译：用于无线通信系统中的波束导向的方法和装置
公开(公告)号：US20050148370A1
公开(公告)日：2005-07-07
申请号：US10489636
申请日：2002-09-12
申请人： Calin Moldoveanu , Odavian Sarca , Radu Selea
发明人： Calin Moldoveanu , Odavian Sarca , Radu Selea
IPC分类号： H01Q1/24 , H01Q3/24 , H01Q3/40 , H01Q25/00 , H04W16/28 , H04M1/00
CPC分类号： H04W16/28 , H01Q1/246 , H01Q3/24 , H01Q3/40 , H01Q25/00
摘要： A med and apparatus is provided that allows M transceivers to transmit/receive using M2N distinct beams using passive beam steering. This provides for the use of arbitrary narrow beams with a number of transceivers that is a fraction of the number of beams but ensures 360° coverage. In other words it permits significant improvements in the link budget with a minimal rise in the cost of the BS. The apparatus includes M distribution switches applied 2N passive beam forming networks each coupled to M antennas. The method and apparatus ate compatible with TDMA in the downlink and in the uplink.
摘要翻译：提供了一种med和装置，其允许M个收发器使用无源波束转向使用M2 N个不同波束进行发射/接收。这提供了使用具有多个收发器的任意窄波束，其是波束数量的一部分，但是确保360°覆盖。换句话说，它允许链路预算的显着改进，而BS的成本最小。该装置包括施加2个N个无源波束形成网络的M个分配开关，每个耦合到M个天线。该方法和装置在下行链路和上行链路中与TDMA兼容。

2. 发明申请

US20050146463A1 Method and apparatus for beam steering in a wireless communications system 审中-公开
标题翻译：无线通信系统中波束转向的方法和装置
公开(公告)号：US20050146463A1
公开(公告)日：2005-07-07
申请号：US10489635
申请日：2002-09-12
申请人： Calin Moldoveanu , Octavian Sarca , Radu Selea
发明人： Calin Moldoveanu , Octavian Sarca , Radu Selea
IPC分类号： H01Q1/24 , H01Q3/24 , H01Q3/40 , H01Q25/00 , H04W16/28 , H01Q3/26
CPC分类号： H04W16/28 , H01Q1/246 , H01Q3/24 , H01Q3/40 , H01Q25/00
摘要： A method and apparatus is provided that allows M transceivers to transmit/receive using M2N distinct beams using passive beam steering. This provides for the use of arbitrary narrow beams with a number of transceivers that is a fraction of the number of beams but ensures 360° coverage. In other words it permits significant improvements in the link budget with a minimal rise in the cost of the BS. The apparatus includes M distribution switches applied to 2N passive beam forming networks each coupled to M antennas. The method and apparatus are compatible with TDM in the downlink and TDMA in the uplink.
摘要翻译：提供了一种方法和装置，其允许M个收发器使用无源波束转向使用M2 N个不同波束发射/接收。这提供了使用具有多个收发器的任意窄波束，其是波束数量的一部分，但是确保360°覆盖。换句话说，它允许链路预算的显着改进，而BS的成本最小。该装置包括施加到每个耦合到M个天线的2 N无源波束形成网络的M个分配开关。该方法和装置在下行链路中与TDM兼容，在上行链路中与TDMA兼容。

3. 发明申请

US20050116876A1 Distribution system for antenna array 审中-公开
标题翻译：天线阵列配电系统
公开(公告)号：US20050116876A1
公开(公告)日：2005-06-02
申请号：US10486999
申请日：2002-08-13
申请人： Calin Moldoveanu
发明人： Calin Moldoveanu
IPC分类号： H01Q1/24 , H01Q3/24 , H01Q3/26 , H01Q21/00 , H01Q21/20 , H04B7/04
CPC分类号： H01Q3/242 , H01Q1/246 , H01Q3/24 , H01Q3/26 , H01Q21/0006 , H01Q21/205 , H04B7/04
摘要： An antenna distribution system provides an effective way to deploy wireless access coverage in an evolving subscriber coverage area. The antenna distribution system includes multiple levels of inputs that are selectively connected to an antenna array to alter the radiation pattern of the antenna array as desired for a given subscriber distribution and topography scenario. An eight-antenna array has four levels of input. The first level has eight inputs each selectively coupled to the corresponding one of the eight antenna. The second level has four inputs, each selectively coupled to two adjacent antennas. The third level has two inputs, each selectively coupled to four adjacent antennas. The fourth level has one input selectively coupled to all eight antenna. Phase shifters coupled to each antenna apply appropriate phase compensation for the antennas to effect the desired radiation pattern when coupled using the second, third or fourth level inputs. In general for n levels of input N=2n antennas are required, each antenna radiating a petal having an angle of 360°/2n−k where k=O, 1 . . . n
摘要翻译：天线分配系统提供了在演进的用户覆盖区域中部署无线接入覆盖的有效方式。天线分配系统包括多个级别的输入，其被选择性地连接到天线阵列，以根据给定的用户分配和地形场景的期望来改变天线阵列的辐射图。八天线阵列有四个输入电平。第一级具有八个输入，每个输入选择性地耦合到八个天线中的相应一个天线。第二级具有四个输入，每个输入选择性地耦合到两个相邻的天线。第三级具有两个输入，每个输入选择性地耦合到四个相邻的天线。第四级具有选择性地耦合到所有八个天线的一个输入。耦合到每个天线的移相器对于天线施加适当的相位补偿，以在使用第二，第三或第四电平输入耦合时实现期望的辐射图。通常，对于n个输入电平，需要n = 2个天线，每个天线辐射角度为360°/ 2·n-k的花瓣，其中k = 0,1。。。 n

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式