公开(公告)号：WO2017123292A2

公开(公告)日：2017-07-20

申请号：PCT/US2016/055981

申请日：2016-10-07

申请人： QUALCOMM INCORPORATED

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

CPC分类号： H04W36/245 ,  H04B7/18541 ,  H04B7/195 ,  H04B17/336 ,  H04W36/30 ,  H04W84/06

摘要： 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.

摘要翻译： 提供了用于管理卫星间切换的方法和装置，以允许用户终端在非地球同步卫星通信系统中保持足够高的系统容量的同时降低切换频率。 用于管理卫星间切换的方法和装置可以在网关，连接到网关的基础设施，用户终端或卫星中实现。

公开(公告)号：WO2017062211A1

公开(公告)日：2017-04-13

申请号：PCT/US2016/053809

申请日：2016-09-26

申请人： QUALCOMM INCORPORATED

发明人： DAMNJANOVIC, Jelena ,  MARSH, Gene Wesley ,  SCIPIONE, Mario Mark ,  WU, Qiang

IPC分类号： H04B7/185 ,  H04B7/204

CPC分类号： H04L1/1822 ,  H04B7/18541 ,  H04B7/2041 ,  H04L5/0055 ,  H04W72/046

摘要： A method and apparatus for operating a controller for a satellite communications system during inter-beam handovers. In some aspects, the controller may perform an inter-beam handover by switching communications with a user terminal from a first beam to a second beam of a satellite. The controller receives a feedback message form the user terminal, via the first beam, after the inter-beam handover is completed, and may then selectively retransmit data to the user terminal via the second beam based at least in part on the feedback message.

摘要翻译： 一种用于在射束间切换期间操作用于卫星通信系统的控制器的方法和装置。 在一些方面，控制器可以通过将与用户终端的通信从第一波束切换到卫星的第二波束来执行波束间切换。 控制器在波束切换完成之后经由第一波束从用户终端接收反馈消息，并且然后可以至少部分地基于反馈消息经由第二波束选择性地将数据重新发送到用户终端。

公开(公告)号：WO2015123698A1

公开(公告)日：2015-08-20

申请号：PCT/US2015/016233

申请日：2015-02-17

申请人： JALALI, Ahmad Jalali ,  RANDAKRISHNAN, Dhinakar ,  BAGHAEI, Mehran ,  DIOUS, Kevin

发明人： JALALI, Ahmad Jalali ,  RANDAKRISHNAN, Dhinakar ,  BAGHAEI, Mehran ,  DIOUS, Kevin

IPC分类号： H04B7/185

CPC分类号： H04B7/18504 ,  B64C39/024 ,  B64C2201/122 ,  H04B7/1555 ,  H04B7/18506 ,  H04B7/18528 ,  H04B7/18539 ,  H04B7/18541 ,  H04B7/18543 ,  H04B7/18554 ,  H04B7/18578 ,  H04W24/02 ,  H04W36/0005 ,  H04W36/0016 ,  H04W36/0083 ,  H04W36/12 ,  H04W36/30 ,  H04W36/36 ,  H04W48/16 ,  H04W84/005 ,  H04W84/06 ,  H04W88/16 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/446

摘要： A communication system is described. The system includes: at least one gateway able to provide broadband connectivity, a set of ground terminals, and a set of high altitude platforms (HAPs), where at least one aerial platform is able to communicate with at least one gateway using radio frequencies, each HAP is able to communicate with ground terminals using radio frequencies, and each HAP is able to communicate with each other HAP using radio frequencies. Ways to handoff a ground terminal/gateway from one HAP beam to another HAP beam are described. Ways to handoff a ground terminal/gateway from one HAP to another HAP are described. Ways that keep the communications payload radios active when there is data traffic and put the radios in sleep mode otherwise, thereby adjusting the communications payload power consumption to the data traffic requirements as a function of time and coverage area, are described.

摘要翻译： 描述通信系统。 该系统包括：能够提供宽带连接的至少一个网关，一组接地终端和一组高空平台（HAP），其中至少一个空中平台能够使用无线电频率与至少一个网关通信， 每个HAP能够使用无线电频率与接地终端通信，并且每个HAP能够使用无线电频率彼此进行HAP通信。 描述了将接地终端/网关从一个HAP波束切换到另一个HAP波束的方法。 描述了将接地终端/网关从一个HAP切换到另一个HAP的方法。 描述了当存在数据业务时保持通信有效载荷无线电活动的方式，并且将无线电设置为睡眠模式，否则将调整作为时间和覆盖区域的函数的数据业务需求的通信有效载荷功率消耗。

公开(公告)号：WO2015108997A1

公开(公告)日：2015-07-23

申请号：PCT/US2015/011432

申请日：2015-01-14

申请人： COMTECH EF DATA CORP.

发明人： CHINTADA, Lakshmana ,  HARIG, Jeffrey

IPC分类号： H04B7/26 ,  H01Q1/27 ,  H01Q1/28

CPC分类号： H04W36/18 ,  H04B7/18541 ,  H04B7/18578 ,  H04W56/004 ,  H04W84/06

摘要： A method of seamless antenna handover comprising transmitting at least one of a handover trigger packet and a handover synchronization packet (HSP) by a transmitter to a first and a second repeating relay, the first repeating relay configured to transmit a data signal to a first modem at a remote receiver and the second repeating relay configured to transmit the data signal to a second modem at the remote receiver, receiving, by the first and second modems at the remote receiver, the data signal and the at least one of the handover trigger packet and the HSP from the first and second repeating relays, respectively, and activating one of the first and second modems and deactivating the other of the first and second modems in response to receiving the at least one of the handover trigger packet and the HSP.

摘要翻译： 一种无缝天线切换的方法，包括：通过发射机向第一和第二重复中继发送切换触发分组和切换同步分组（HSP）中的至少一个，所述第一重复中继被配置为将数据信号发送到第一调制解调器 在远程接收机处，并且所述第二重复中继被配置为将所述数据信号发送到所述远程接收机处的第二调制解调器，由所述远程接收器的所述第一和第二调制解调器接收所述数据信号和所述切换触发分组中的至少一个 和来自第一和第二重复中继的HSP，并且响应于接收到切换触发分组和HSP中的至少一个，激活第一和第二调制解调器之一，并且去激活第一和第二调制解调器中的另一个。

公开(公告)号：WO2004105256A3

公开(公告)日：2005-10-20

申请号：PCT/US2004014992

申请日：2004-05-13

申请人： MOBILE SATELLITE VENTURES L P ,  DUTTA SANTANU ,  KARABINIS PETER D

发明人： DUTTA SANTANU ,  KARABINIS PETER D

IPC分类号： H04B20060101 ,  H04B7/185 ,  H04W24/00 ,  H04W28/04 ,  H04W36/14 ,  H04W36/30 ,  H04W84/06 ,  H04Q7/20

CPC分类号： H04B7/18541 ,  H04W24/00 ,  H04W36/14 ,  H04W36/30 ,  H04W84/06

摘要： A satellite communications system includes a satellite that is configured to wirelessly communicate with radioterminals in a satellite coverage area over a satellite frequency band, and an ancillary terrestrial component that is configured to wirelessly communicate with radioterminals in the satellite coverage area over at least some of the satellite frequency band, to thereby terrestrially reuse at least some of the satellite frequency band. Wireless communications with a radioterminal are handed over from the ancillary terrestrial component to the satellite if the radioterminal transmit power exceeds a threshold, and a received satellite signal quality exceeds a threshold, even though the radioterminal is able to wirelessly communicate with the ancillary terrestrial component. Downlink wireless radiation that is received at the radioterminal from a satellite may be monitored to determine potential interference created by the uplink radiation of the radioterminal due to the terrestrial reuse of at least some of the satellite frequency band.

摘要翻译： 一种卫星通信系统包括配置成通过卫星频带与卫星覆盖区域中的无线电终端进行无线通信的卫星，以及被配置为与卫星覆盖区域中的至少一些的无线电终端无线通信的辅助地面组件 卫星频带，从而陆上重用至少一些卫星频带。 如果无线电终端发射功率超过阈值，并且接收的卫星信号质量超过阈值，即使无线电终端能够与辅助地面组件进行无线通信，则具有无线电终端的无线通信从辅助地面组件切换到卫星。 可以监测从卫星的无线电终端接收的下行链路无线辐射，以确定由于卫星频带的至少一部分的陆地再利用而由无线电终端的上行辐射产生的潜在干扰。

公开(公告)号：WO00007306A1

公开(公告)日：2000-02-10

申请号：PCT/US1999/016986

申请日：1999-07-29

IPC分类号： H04B7/185

CPC分类号： H04B7/18541 ,  H04W36/00 ,  H04W84/06

摘要： A method (300, Fig. 3) controls CU (140, Figs. 1, 6) hand-off in a non-geostationary orbit (NSGO) satellite system (100, Fig. 1) without consuming large amounts of bandwidth or satellite processing power. Using method (300), a network control facility (NCF) (130, Figs. 1, 5) divides the earth (102, Fig. 2) into suitable regions 200 (Fig. 2), or geographical areas of the earth sized so that all of the CUs (140, 142, 144, Fig. 1) within a region (200) can be handed-off as a group rather than handling each station individually. When it is determined through the method (300) that it is time to hand-off communications in a particular region, all CUs within that region are directed to effectuate a hand-off at substantially the same time.

摘要翻译： 一种方法（300，图3）控制在非对地静止轨道（NSGO）卫星系统（图1中的100）中的CU（140，图1，6）切换，而不消耗大量的带宽或卫星处理 功率。 使用方法（300），网络控制设施（NCF）（130，图1，图5）将地球（102，图2）划分成合适的区域200（图2）或地球的地理区域 区域（200）内的所有CU（140,142,144，图1）可以作为一组进行切换，而不是分别处理每个站。 当通过方法（300）确定现在是切换特定区域中的通信的时候，该区域内的所有CU被指示在基本上同时实现切换。

公开(公告)号：WO99056408A1

公开(公告)日：1999-11-04

申请号：PCT/US1999/009477

申请日：1999-04-29

IPC分类号： H04B7/185

CPC分类号： H04B7/18571 ,  H04B7/18541 ,  H04B7/1855 ,  H04W36/00 ,  H04W64/006 ,  H04W84/06

摘要： A method and apparatus for predicting when to perform spot beam and satellite handover in a mobile satellite communication network (9) that uses the position of the mobile subscriber. The method and apparatus perform all calculations with respect to a satellite-based coordinate system, thereby eliminating the need to model the shape of the geometrically complex spot beams (38 and 40) on the surface of the earth. The position of a mobile subscriber unit (11) that initiates a call is tracked relative to a set of spot beam boundaries (42) that are located equidistant between a first spot beam (38) within which the subscriber unit (11) is located at the time of call initiation and a set of adjacent spot beams (40). An interval during which the subscriber unit (11) will cross over one of the boundaries (42) is estimated. The spot beam (40) into which the subscriber (11) is traveling is identified and the estimated interval is adjusted until a desired level of accuracy has been achieved at which time the call is transferred from the first spot beam (38) to the adjacent spot beam (40) at the estimated time. For satellite handover, an angle of elevation between the subscriber unit (11) and the satellite (10) is calculated and compared to a threshold angle. When the angle of elevation drops below the threshold angle due to the movement of the satellite (10), the call is transferred from a first satellite (10) to a neighboring second satellite (13).

摘要翻译： 一种用于在使用移动用户的位置的移动卫星通信网络（9）中预测何时执行点波束和卫星切换的方法和装置。 该方法和装置执行关于基于卫星的坐标系的所有计算，从而消除了对地球表面上的几何复杂点波束（38和40）的形状进行建模的需要。 发起呼叫的移动用户单元（11）的位置相对于在用户单元（11）位于其中的第一点波束（38）之间等距的一组点波束边界（42）被跟踪 呼叫发起的时间和一组相邻的光束（40）。 估计用户单元（11）跨越边界之一的间隔（42）。 识别用户（11）正在行进的点波束（40），并且调整所估计的间隔，直到达到期望的准确度水平，在该时间将呼叫从第一点波束（38）传送到相邻 点波束（40）在估计的时间。 对于卫星切换，计算用户单元（11）和卫星（10）之间的高度角，并将其与阈值角度进行比较。 当由于卫星（10）的移动而导致仰角降到阈值角以下时，呼叫从第一卫星（10）传送到相邻的第二卫星（13）。

公开(公告)号：WO2016178838A1

公开(公告)日：2016-11-10

申请号：PCT/US2016/029050

申请日：2016-04-22

申请人： QUALCOMM INCORPORATED

发明人： ULUPINAR, Fatih ,  PURKAYASTHA, Punyaslok

IPC分类号： H04B7/185

CPC分类号： H04B7/18541 ,  H04W36/0083 ,  H04W84/06

摘要： Various aspects of the disclosure relate to handoff of a user terminal in communication with a gateway through a satellite in a non-geosynchronous satellite communication system. In some aspects, a gateway and a user terminal use a satellite and beam transition table to determine when to handoff the user terminal from one beam to another and/or from one satellite to another. In some aspects, a user terminal sends capability information, location information, or other information to a gateway whereby, based on this information, the gateway generates a satellite and beam transition table and/or selects a handoff procedure for the user terminal. In some aspects, handoff of a user terminal to a different satellite involves the user terminal conducting satellite signal measurements and sending a measurement message to the gateway. In some aspects, the gateway generates a new satellite and beam transition table as a result of receiving a measurement message.

摘要翻译： 本公开的各个方面涉及通过非地球同步卫星通信系统中的卫星与网关通信的用户终端的切换。 在一些方面，网关和用户终端使用卫星和波束转换表来确定何时将用户终端从一个波束切换到另一个波束和/或从一个卫星切换到另一个。 在一些方面，用户终端向网关发送能力信息，位置信息或其他信息，由此，基于该信息，网关生成卫星和波束转换表和/或为用户终端选择切换过程。 在一些方面，用户终端切换到不同的卫星涉及用户终端进行卫星信号测量并向网关发送测量消息。 在一些方面，由于接收到测量消息，网关生成新的卫星和波束转换表。

公开(公告)号：WO2015175055A2

公开(公告)日：2015-11-19

申请号：PCT/US2015/016067

申请日：2015-02-16

申请人： JALALI, Ahmad

发明人： JALALI, Ahmad

CPC分类号： H04B7/18504 ,  B64C39/024 ,  B64C2201/122 ,  H04B7/1555 ,  H04B7/18506 ,  H04B7/18528 ,  H04B7/18539 ,  H04B7/18541 ,  H04B7/18543 ,  H04B7/18554 ,  H04B7/18578 ,  H04W24/02 ,  H04W36/0005 ,  H04W36/0016 ,  H04W36/0083 ,  H04W36/12 ,  H04W36/30 ,  H04W36/36 ,  H04W48/16 ,  H04W84/005 ,  H04W84/06 ,  H04W88/16 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/164 ,  Y02D70/446

摘要： A communication system is described. The system includes: at least one gateway able to provide broadband connectivity, a set of ground terminals, and a set of aerial platforms, where at least one aerial platform is able to communicate with at least one gateway using radio frequencies, each aerial platform is able to communicate with ground terminals using radio frequencies, and each aerial platform is able to communicate with each other aerial platform using radio frequencies. An automated method for determining a beam direction for communication among UAVs includes: dividing a space around the UAV into multiple sub-regions, and, iteratively: selecting a sub-region from among the multiple sub-regions; pointing a signal toward the sub-region; and determining whether a signal is received from another UAV, until all sub-regions from among the multiple sub-regions have been selected.

摘要翻译： 描述通信系统。 该系统包括：能够提供宽带连接的至少一个网关，一组接地终端和一组高空作业平台，其中至少一个空中平台能够使用无线电频率与至少一个网关通信，每个空中平台是 能够使用无线电频率与地面终端通信，并且每个空中平台能够使用无线电频率与彼此的空中平台通信。 用于确定UAV之间的通信的波束方向的自动化方法包括：将UAV周围的空间划分成多个子区域，并且迭代地：从多个子区域中选择子区域; 指向子区域的信号; 以及确定是否从另一UAV接收到信号，直到所述多个子区域中的所有子区域被选择为止。

公开(公告)号：WO2012134131A2

公开(公告)日：2012-10-04

申请号：PCT/KR2012/002182

申请日：2012-03-26

申请人： 엘지전자 주식회사 ,  서한별 ,  김학성 ,  김병훈

发明人： 서한별 ,  김학성 ,  김병훈

IPC分类号： H04W36/32 ,  H04W36/08

CPC分类号： H04B7/18541 ,  H04W36/08 ,  H04W36/32 ,  H04W84/005 ,  H04W88/04

摘要： 본 발명은 무선 통신 시스템에 대한 것으로, 보다 상세하게는 이동 셀 관련 핸드오버를 수행하는 방법 및 장치에 대한 것이다. 본 발명의 일 실시예에 따른 단말이 이동 중계기 핸드오버를 수행하는 방법은, 상기 이동 중계기 핸드오버에 대한 상기 단말의 상태에 대한 정보를 서빙 기지국에게 보고하는 단계; 및 상기 단말의 상태에 기초하여 결정되는 상기 서빙 기지국으로부터의 핸드오버 명령에 기초하여 상기 이동 중계기 핸드오버를 수행하는 단계를 포함할 수 있다. 이에 따라, 이동 셀 관련 핸드오버가 효율적이고 정확하게 수행될 수 있는 방안이 제공될 수 있다.

摘要翻译： 无线通信系统技术领域本发明涉及一种无线通信系统，更具体地，涉及一种用于执行与移动小区相关的切换的方法和装置。 根据本发明的一个实施例的用于移交移动中继器的用户设备的方法可以包括向服务基站报告关于移动中继切换的用户设备的状态的信息，以及 基于服务基站的切换命令移交移动中继的步骤，基于用户设备的状态确定切换。 结果，可以提供用于有效且准确地执行与移动小区有关的切换的方式。