公开(公告)号：US20170105153A1

公开(公告)日：2017-04-13

申请号：US15149008

申请日：2016-05-06

Applicant: QUALCOMM Incorporated

Inventor： Seyed Shwan ASHRAFI ,  Sumeeth NAGARAJA ,  Dan VASSILOVSKI ,  Dan ZHANG ,  James DETERMAN ,  Gene Wesley MARSH ,  Jun MA

IPC: H04W36/08 ,  H04W36/22 ,  H04W36/24 ,  H04B17/336

CPC classification number: H04W36/245 ,  H04B7/18541 ,  H04B7/195 ,  H04B17/336 ,  H04W36/30 ,  H04W84/06

Abstract: Methods and apparatuses for managing inter-satellite handovers are provided to allow a user terminal to reduce the frequency of handovers while maintaining a sufficiently high system capacity in a non-geosynchronous satellite communication system. The method and apparatus for managing inter-satellite handovers may be implemented in a gateway, in infrastructure connected to a gateway, in a user terminal, or in a satellite.

公开(公告)号：US20170019814A1

公开(公告)日：2017-01-19

申请号：US14865390

申请日：2015-09-25

Applicant: QUALCOMM Incorporated

Inventor： James DETERMAN ,  Dan VASSILOVSKI ,  Peyman RAZAGHI ,  Allen Minh-Triet TRAN ,  Mehmet GURELLI ,  Sumeeth NAGARAJA ,  Peter John BLACK ,  Qiang WU ,  Gene Wesley MARSH

IPC: H04W28/04 ,  H01Q3/34 ,  H01Q3/28 ,  H01Q1/28 ,  H01Q1/36

CPC classification number: H01Q1/288 ,  H01Q1/36 ,  H01Q3/28 ,  H01Q3/34 ,  H04B7/18513 ,  H04B7/2041 ,  H04W28/04 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/164 ,  Y02D70/26 ,  Y02D70/446

Abstract: A non-geosynchronous satellite system, where each satellite has an antenna (perhaps a multi-element antenna) to form a beam pattern comprising a set of beams in the footprint of the satellite, where in one implementation each beam is substantially elliptical in shape having a minor axis and a major axis, where the minor axes are substantially collinear and the major axes are substantially oriented east to west. For a satellite, power is reduced or turned off for a subset of the set of beams, wherein each beam in the subset is reduced at or below a corresponding power level such that when a beam is powered above its corresponding power level an equivalent power flux-density (EPFD) exceeds a limit at some point on the Earth's surface.

Abstract translation: 一种非地球同步卫星系统，其中每个卫星具有天线（可能是多元天线）以形成包括卫星覆盖区中的一组波束的波束图，其中在一个实施方式中，每个波束基本上是椭圆形的， 短轴和长轴，其中短轴基本上共线，并且主轴基本上朝向东向西。 对于卫星，对于该组波束的子集，功率被减小或关闭，其中该子集中的每个波束被减小到等于或低于对应的功率电平，使得当波束被加电到高于其对应的功率电平时，等效功率通量 密度（EPFD）超过了地球表面某一点的极限。