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1. 发明申请

WO0113541A3 METHOD FOR DEEP PAGING 审中-公开
标题翻译：深埋方法
公开(公告)号：WO0113541A3
公开(公告)日：2002-03-07
申请号：PCT/US0022734
申请日：2000-08-16
申请人： QUALCOMM INC
发明人： SCHIFF LEONARD N
IPC分类号： H04B7/15 , H04B7/185 , H04B7/26 , H04J13/00 , H04L7/00
CPC分类号： H04B7/185 , H04B7/18513 , H04B7/18567 , H04J13/0048
摘要： A method for deep paging in a communication system employing orthogonal channelizing codes, such as Walsh sequences, of predetermined length m , that does not require a high powered paging channel. The method includes the steps of generating a paging channel message which is combined with a Walsh sequence having a length greater than or equal to 2 m , and transmitting the paging channel message at a data rate of less than 480 bits per second (bps). By transmitting the paging channel message at a low data rate and integrating collected energy over a period longer by a factor on the order of 1000, the message is able to penetrate buildings and other structures or high attenuation environments, thereby allowing one to successfully page a user terminal that is inside such a structure or area. Preferably, the paging channel message is formed using an auxiliary Walsh sequence on the order of 65536 chips in length, and the data rate is less than 10 bps.
摘要翻译：一种在不需要高功率寻呼信道的采用预定长度m m的正交信道化码（例如沃尔什序列）的通信系统中进行深度寻呼的方法。该方法包括以下步骤：产生与具有大于或等于2m的长度的沃尔什序列组合的寻呼信道消息，并以小于480的数据速率发送寻呼信道消息每秒位数（bps）。通过以低数据速率发送寻呼信道消息并将收集的能量在长达1000个数量级的时间段内集成，该消息能够穿透建筑物和其他结构或高衰减环境，从而允许一个成功地寻呼在这样的结构或区域内的用户终端。优选地，使用长度为65536个码片的辅助沃尔什序列来形成寻呼信道消息，并且数据速率小于10bps。

2. 发明申请

WO2004002016A3 REDUCING SERVICE OUTAGES IN A MULTIBEAM SATELLITE SYSTEM 审中-公开
标题翻译：减少多用户卫星系统中的服务失效
公开(公告)号：WO2004002016A3
公开(公告)日：2004-03-18
申请号：PCT/US0319936
申请日：2003-06-25
申请人： QUALCOMM INC
发明人： SCHIFF LEONARD N
IPC分类号： H04B7/19 , H04B7/185
CPC分类号： H04B7/18513 , H04B7/18534
摘要： A satellite is linked to a number of gateways by a number of feeder links. When a degraded link is detected among the feeder links, communications are switched from the degraded link to a diversity link shared among the feeder links. In one embodiment, said diversity link is connected to a diversity gateway located outside a service area of the satellite. In another embodiment, the diversity link comprises channels distributed among the feeder links within the service area.
摘要翻译：卫星通过多个馈线链路连接到多个网关。当在馈线链路之间检测到恶化的链路时，通信从劣化的链路切换到在馈线链路之间共享的分集链路。在一个实施例中，所述分集链路连接到位于卫星的服务区域之外的分集网关。在另一个实施例中，分集链路包括分布在服务区域内的馈线链路之间的信道。

3. 发明申请

WO2013025932A3 OVERLAYING AN AIR TO GROUND COMMUNICATION SYSTEM ON SPECTRUM ASSIGNED TO SATELLITE SYSTEMS 审中-公开
标题翻译：在分配给卫星系统的频谱上覆盖地面通信系统的空气
公开(公告)号：WO2013025932A3
公开(公告)日：2013-05-16
申请号：PCT/US2012051201
申请日：2012-08-16
申请人： QUALCOMM INC , JALALI AHMAD , SCHIFF LEONARD N , AMES WILLIAM G
发明人： JALALI AHMAD , SCHIFF LEONARD N , AMES WILLIAM G
IPC分类号： H04B7/185
CPC分类号： H04B7/18508 , H04B7/18502 , H04W16/14 , H04W36/20 , H04W36/30
摘要： An air to ground communication system provides internet access to aircraft from ground based stations. The air to ground system shares spectrum with uplink portions of a satellite communication spectrum. Interference mitigation techniques are employed to avoid interference between the ground based communications and satellite communications. Fade mitigation techniques are employed to provide communication to aircraft at low angles of elevation in the presence of rain.
摘要翻译：空对地通信系统提供从地面站到飞机的互联网接入。空对地系统与卫星通信频谱的上行链路部分共享频谱。采用干扰抑制技术来避免地面通信和卫星通信之间的干扰。采用衰减消减技术来在雨天存在的情况下以低仰角提供与飞机的通信。

4. 发明申请

WO2005029729A2 MIXED REUSE OF FEEDER LINK AND USER LINK BANDWIDTH 审中-公开
标题翻译：供应链链接和用户链接带的混合重用
公开(公告)号：WO2005029729A2
公开(公告)日：2005-03-31
申请号：PCT/US2004030963
申请日：2004-09-21
申请人： QUALCOMM INC , AMES WILLIAM G , SCHIFF LEONARD N
发明人： AMES WILLIAM G , SCHIFF LEONARD N
IPC分类号： H04B7/185 , H04Q7/20
CPC分类号： H04B7/18515
摘要： An apparatus and method for a wireless communication system in which a forward/uplink portion and a return/uplink portion are assigned within an available frequency bandwidth is disclosed. More particularly, a service area is divided into multiple regions. The assignment of the forward/uplink portion of the return/uplink portion is shuffled in the multiple regions. The apparatus and method may be implemented in a multi-beam wireless communication system.
摘要翻译：公开了一种无线通信系统的装置和方法，其中在可用频带内分配了前向/上行链路部分和返回/上行链路部分。更具体地，服务区域被分成多个区域。返回/上行链路部分的前向/上行链路部分的分配在多个区域中进行混洗。该装置和方法可以在多波束无线通信系统中实现。

5. 发明申请

WO2004010608A3 NOISE COMPENSATION IN SATELLITE COMMUNICATIONS 审中-公开
标题翻译：卫星通信中的噪声补偿
公开(公告)号：WO2004010608A3
公开(公告)日：2004-04-08
申请号：PCT/US0323066
申请日：2003-07-23
申请人： QUALCOMM INC
发明人： SCHIFF LEONARD N , MILLER DAVID S
IPC分类号： H04B7/185
CPC分类号： H04B7/18532 , Y02D70/00 , Y02D70/446
摘要： A quality measure, such as a signal-to-noise ratio, of a signal arriving at a gateway for a return link is used to adjust a data rate for the link. The return link is transferred from a terminal to the gateway through a satellite, and shared by a number of user terminals at any given time, including the terminal for which the data rate is adjusted. The terminals sharing the link have a certain interference relationship. Adjusting a data rate for a message sent from one or more terminals through the return link in the presence of signal degradation or power loss does not appreciably change the interference relationship among the plurality of terminals.
摘要翻译：使用到达用于返回链路的网关的信号的质量度量（例如信噪比）来调整链路的数据速率。返回链路通过卫星从终端传输到网关，并在任何给定时间由多个用户终端共享，包括调整数据速率的终端。共享链路的终端具有一定的干扰关系。在存在信号劣化或功率损失的情况下调整从一个或多个终端通过返回链路发送的消息的数据速率不会明显地改变多个终端之间的干扰关系。

6. 发明申请

WO2004002009A3 ORTHOGONAL CODE DIVISION MULTIPLE ACCESS SYSTEM 审中-公开
标题翻译：正交码分多址访问系统
公开(公告)号：WO2004002009A3
公开(公告)日：2004-04-08
申请号：PCT/US0319463
申请日：2003-06-20
申请人： QUALCOMM INC
发明人： SCHIFF LEONARD N , JALALI AHMAD
IPC分类号： H04B7/185 , H04B7/216 , H04B7/26
CPC分类号： H04B7/216 , H04B7/18543 , H04B2201/70702 , Y02D70/00 , Y02D70/446
摘要： Orthogonal CDMA (OCDMA) in the return link of a satellite based communications system provides improved bandwidth efficiencies; increased ability to overcome channel degrading phenomenon; reduced transmission power; or various combinations thereof. By achieving code synchronization needed for advantageous use of OCDMA in the return link of a satellite based communication system, a plurality of terminals, each with a unique time slot/code channel assignment, may transmit concurrently, with the same, or lower, aggregate power as would be used by a single terminal using TDMA. Use of OCDMA in the return link allows one or more terminals, each in a common beam and assigned a common time slot, to transmit at a higher transmission power to overcome channel degradation effects. The ability to allow for higher transmission power for a particular terminal can increase the effective data rate for that terminal by enabling the use of a higher order modulation technique.
摘要翻译：基于卫星通信系统的返回链路中的正交CDMA（OCDMA）提供了改进的带宽效率; 增强克服渠道退化现象的能力; 降低发射功率; 或其各种组合。通过实现在基于卫星的通信系统的返回链路中有利地使用OCDMA所需的代码同步，每个具有唯一的时隙/码信道分配的终端可以以相同或更低的总功率同时发送如将由使用TDMA的单个终端使用的那样。在返回链路中使用OCDMA允许一个或多个终端，每个在公共波束中并且分配公共时隙，以更高的发射功率发射以克服信道劣化效应。允许特定终端的较高发射功率的能力可以通过使用更高阶调制技术来增加该终端的有效数据速率。

7. 发明申请

WO0028679A8 METHOD AND APPARATUS FOR CROSS POLARIZED ISOLATION IN A COMMUNICATION SYSTEM 审中-公开
标题翻译：通信系统中交叉极化隔离的方法和装置
公开(公告)号：WO0028679A8
公开(公告)日：2000-08-17
申请号：PCT/US9926392
申请日：1999-11-09
申请人： QUALCOMM INC
发明人： ANTONIO FRANKLIN P , SCHIFF LEONARD N , AMES WILLIAM G
IPC分类号： H04J11/00 , H04B7/06 , H04B7/10 , H04B7/185 , H04J3/00
CPC分类号： H04B7/18534 , H04B7/10
摘要： The information signals are transferred to end users, customers, or service subscribers (116, 118) using at least two signal sources, generally satellites (104, 106), and polarized radiation. Two polarization modes are employed, with the preferred modes being left-hand and right-hand circularly polarized radiation, although other polarization modes may be employed. The total number of channels can be divided among the polarization modes and transferred to end users either through the use of polarization switching in the receivers (522) to selectively switch between the satellites, or by switching elements in the satellites (sources) to switch between polarization modes used for transmission.
摘要翻译：使用至少两个信号源（通常是卫星（104,106））和偏振辐射，将信息信号传送到终端用户，客户或服务订户（116,118）。采用两种偏振模式，其中优选的模式是左旋和右旋圆偏振辐射，尽管可以采用其它偏振模式。信道的总数可以在偏振模式之间分配并且通过使用接收器（522）中的偏振切换来转移到最终用户，以选择性地在卫星之间切换，或者通过在卫星（源）之间切换元件以在用于传输的偏振模式。

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