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    • 11. 发明授权
    • Method for energy saving in a telecommunication system
    • 电信系统节能方法
    • US08483121B2
    • 2013-07-09
    • US12676680
    • 2007-09-05
    • Stefan LindgrenSten Sjöberg
    • Stefan LindgrenSten Sjöberg
    • H04B7/185
    • H04W16/08H04W52/0206H04W88/08Y02D70/146
    • The present invention relates to a method for energy saving in a telecommunication system with at least one first base station 24 for enabling communication within a first cell. A signal having a frame structure is transmitted in the first cell by the first base station 24. The structure of at least some frames comprises an overhead part with at least synchronization or system information. The first base station 24 is in a normal mode operated to transmit at least the overhead part so that it substantially reaches all user terminals within the first cell covering a first area 27. The method is particularly characterized in that the first base station 24 in a power saving mode is operated to transmit at least the overhead part so that it substantially reaches all user terminals within the first cell covering a second area 23 being larger than the first area 27.
    • 本发明涉及一种在电信系统中节能的方法,该方法具有至少一个第一基站24,用于实现第一小区内的通信。 具有帧结构的信号由第一基站24在第一小区中发送。至少一些帧的结构包括具有至少同步或系统信息的开销部分。 第一基站24处于正常模式,以至少发送开销部分,使得其基本上到达覆盖第一区域27的第一小区内的所有用户终端。该方法的特征在于,第一基站24在 操作节电模式以至少发送开销部分,使得其基本上到达覆盖第一区域23内的所有用户终端,第二区域23大于第一区域27。
    • 14. 发明授权
    • Stacked patch antenna
    • 堆叠贴片天线
    • US06806831B2
    • 2004-10-19
    • US10086195
    • 2002-03-01
    • Martin JohanssonStefan LindgrenAnna Grincwajg
    • Martin JohanssonStefan LindgrenAnna Grincwajg
    • H01Q138
    • H01Q9/0442H01Q5/357H01Q5/378H01Q9/0414H01Q9/0421
    • A stacked patch antenna comprising two metallic patches (210, 240) stacked on top of each other. The middle patch (210) comprises at least two conductors (224, 234) at or close to its edge (212), which conductors are intended to be connected to a ground plane (200) to thereby ground the patch in two places. The top patch (240) comprises at least two conductors (254, 264) at or close to its edge (242) which electrically interconnect the two patches. The middle patch is fed at a feed area (219) which is at least proximate its geometric center. The middle patch further comprises at least two apertures (220, 230) completely within its circumference (212), i.e. each aperture having a respective unbroken circumference (232, 242). Thereby enabling radiation from slots (214, 216, 244, 246) defined by the edge of the top patch and the edge of the middle patch and defined by the edge of the middle patch and the ground plane.
    • 一种堆叠的贴片天线,包括堆叠在彼此之上的两个金属贴片(210,240)。 中间贴片(210)在其边缘(212)处或其附近包括至少两个导体(224,234),这些导体旨在连接到接地平面(200),从而将贴片接地在两个位置。 顶部贴片(240)包括在其边缘(242)处或其附近的至少两个导体(254,264),其将两个贴片电互连。 中间贴片在至少靠近其几何中心的进给区域(219)处进给。 中间贴片还包括在其圆周(212)内完全的至少两个孔(220,230),即每个孔具有相应的不间断圆周(232,242)。 从而使得由顶部贴片的边缘和中间贴片的边缘限定并由中间贴片和接地平面的边缘限定的狭槽(214,216,244,246)的辐射。