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1.发明申请公开(公告)号：US20070232310A1
公开(公告)日：2007-10-04
申请号：US11620630
申请日：2007-01-05
IPC分类号： H04Q7/20
摘要： A broadband terrestrial message delivery system includes a plurality of wireless communication devices (WCDs), each including a receiver and transmitter, the WCDs capable of not only receiving messages destined for a subscriber associated with a particular WCD, but further capable of acting as a relay point to move messages to and from other subscribers. Message diffusion includes relaying the messages in accordance with all earmark that specifies both the total number of times (N) a message is to be repeated, and the number of times (i) the received message has already been repeated. Methods of improving the spectral efficiency of such a message diffusion architecture include adding a propagation ring width control parameter (J) to the earmark such that a WCD acting in relay mode transmits no more than J repetitions of the message; and providing sectorization such that several sectorized message pathways in a cell may be simultaneously active.
摘要翻译： 宽带地面消息传送系统包括多个无线通信设备（WCD），每个无线通信设备（WCD）包括接收机和发射机，该WCD能够不仅接收去往与特定WCD相关联的订户的消息，而且能够充当中继 指向其他用户移动消息。 消息扩散包括根据指定要重复的消息的总次数（N）的所有指定项目以及已经重复接收到的消息的次数（i）来中继消息。 提高这种消息扩散架构的频谱效率的方法包括将传播环宽度控制参数（J）添加到指定项目，使得以中继模式行动的WCD传送不超过该消息的J个重复; 并且提供扇区化，使得小区中的几个分段消息路径可以同时活动。
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2.发明申请公开(公告)号：US20050190689A1
公开(公告)日：2005-09-01
申请号：US10788729
申请日：2004-02-26
CPC分类号： H04B7/216 , H04J13/0048 , H04J13/18
摘要： An OCDMA transmission arrangement involves encoding both first and second nominally orthogonal polarization signals with a same long code, and transmitting the long-encoded first and second nominally orthogonal polarization signals from respective first and second transmission sources to at least one destination. A corresponding OCDMA demodulating arrangement demodulates the first and second nominally orthogonal polarization signals that were transmitted from respective first and second transmission sources after having been encoded with the same long code. The demodulation arrangement involves receiving the encoded first and second nominally orthogonal polarization signals, and applying the same long code to the received encoded first and second nominally orthogonal polarization signals.
摘要翻译： OCDMA传输装置包括用相同的长码对第一和第二标称正交极化信号进行编码，以及将长编码的第一和第二标称正交极化信号从相应的第一和第二传输源发送到至少一个目的地。 相应的OCDMA解调装置在已经用相同的长码编码之后解调从相应的第一和第二传输源发送的第一和第二名义上正交的极化信号。 解调装置包括接收经编码的第一和第二标称正交极化信号，并将相同的长码应用于接收的编码的第一和第二标称正交极化信号。
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公开(公告)号：US20050272370A1
公开(公告)日：2005-12-08
申请号：US11177616
申请日：2005-07-07
申请人： Leonard Schiff
发明人： Leonard Schiff
CPC分类号： H04B7/18513 , H04B7/18534 , H04B7/2041
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。
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公开(公告)号：US20050207386A1
公开(公告)日：2005-09-22
申请号：US10924564
申请日：2004-08-24
申请人： Leonard Schiff
发明人： Leonard Schiff
CPC分类号： H04B7/1858
摘要： Systems and methods for burden sharing in satellite based communication systems are disclosed. One or more users in a satellite based communication system may experience signal degradation or signal fading that can occur for an extended period of time, such as when the fade is due to rain fade. The system can improve a communication link with a particular user by varying the data rate. The data rate can be varied by reducing a coding rate to compensate for low signal quality. In a time multiplexed communication system where multiple users time multiplex the available communication bandwidth, the system can concurrently adjust a time allocated to a user based in part on the coding rate. The time allocated to a user can be increased for decreased coding rates in order to maintain a substantially stable symbol rate to the user for each time multiplex cycle of users.
摘要翻译： 公开了用于基于卫星的通信系统中负担共享的系统和方法。 基于卫星的通信系统中的一个或多个用户可能经历长时间内可能发生的信号衰减或信号衰落，例如当褪色是由于雨衰时。 该系统可以通过改变数据速率来改善与特定用户的通信链路。 可以通过降低编码率来补偿低信号质量来改变数据速率。 在多用户时间多路复用可用通信带宽的时间复用通信系统中，系统可以部分地基于编码速率同时调整分配给用户的时间。 可以增加分配给用户的时间以减少编码速率，以便在用户的每个时间多路复用周期中为用户维持基本稳定的符号率。
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公开(公告)号：US20070135050A1
公开(公告)日：2007-06-14
申请号：US11301834
申请日：2005-12-12
申请人： Leonard Schiff
发明人： Leonard Schiff
CPC分类号： H04B7/10 , H04B7/061 , H04B7/18532 , H04B17/318
摘要： A mechanism that enables a gateway to dynamically determine which of two transmission signal polarizations is best received by a wireless communication device having a nominally linear antenna. A first pilot and second pilot signals, having different polarizations and orthogonally encoded, are transmitted to the communication device. The communication device determines the relative or absolute signal strengths of the first and second pilot signals and transmits this information to the gateway. The gateway then selects the polarization having the strongest associated signal strength to transmit content-bearing signals to the communication device. Alternatively, the communication device may also determine the phase difference between the first and second pilot signals and transmit this information to the gateway. The gateway can then transmit content-bearing signals using a proportional amount of signal power on each the first and second polarizations and use the proper phasing to approximate the polarization orientation of the communication device.
摘要翻译： 一种允许网关动态地确定具有标称线性天线的无线通信设备最好接收两个传输信号偏振中的哪一个的机制。 具有不同偏振和正交编码的第一导频信号和第二导频信号被发送到通信设备。 通信设备确定第一和第二导频信号的相对或绝对信号强度，并将该信息发送到网关。 然后，网关选择具有最强相关信号强度的极化，以向通信设备发送携带内容的信号。 或者，通信设备还可以确定第一和第二导频信号之间的相位差，并将该信息发送到网关。 然后，网关可以在第一和第二偏振的每一个上使用比例量的信号功率来传送承载信号，并且使用适当的相位来近似通信装置的极化取向。
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公开(公告)号：US20050270999A1
公开(公告)日：2005-12-08
申请号：US10860883
申请日：2004-06-03
申请人： Leonard Schiff , Ahmad Jalali , Wei Shi
发明人： Leonard Schiff , Ahmad Jalali , Wei Shi
IPC分类号： H04B7/185
CPC分类号： H04B7/18513 , H04B7/18543
摘要： Methods and apparatus are disclosed to provide orthogonal multiple access communication in a return link of a satellite communication system. In one embodiment, a closed loop control of a transmit parameter associated with transmission of signals may be performed. In addition, changes in motion of a terminal are monitored such that an open loop control of the transmit parameter is performed, if the detected change meets a certain threshold. For example, an open control is performed if an abrupt or sudden motion is detected.
摘要翻译： 公开了在卫星通信系统的返回链路中提供正交多址通信的方法和装置。 在一个实施例中，可以执行与信号传输相关联的传输参数的闭环控制。 此外，如果检测到的变化满足一定阈值，则监视终端的运动变化，使得执行发送参数的开环控制。 例如，如果检测到突然或突然的运动，则执行打开控制。
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公开(公告)号：US20050207375A1
公开(公告)日：2005-09-22
申请号：US10882964
申请日：2004-06-30
申请人： Leonard Schiff
发明人： Leonard Schiff
CPC分类号： H04B7/18513 , H04B7/18534
摘要： Communication diversity using a plurality of satellites is disclosed. The satellites can support multiple regions corresponding to multiple satellite beams. Each satellite can support all regions in the reverse direction and each satellite can be designated as a primary satellite for one of the multiple regions corresponding to one of the multiple satellite beams. Each satellite can receive from any of the regions reverse link signals broadcast by, for example, a mobile station. Each satellite can communicate the received reverse link signals to, for example, a base station or gateway where the signals can be combined to increase signal quality. A mobile station receives forward link signals from the primary satellite and monitors a signal quality from the primary satellite and from a secondary satellite. If the signal quality from the primary satellite drops below a threshold value, the communication signal is transferred to the secondary satellite.
摘要翻译： 公开了使用多个卫星的通信分集。 卫星可以支持对应于多个卫星波束的多个区域。 每个卫星可以支持相反方向的所有区域，并且每个卫星可以被指定为对应于多个卫星波束之一的多个区域之一的主卫星。 每个卫星可以从任何区域接收由例如移动台广播的反向链路信号。 每个卫星可以将接收到的反向链路信号传送到例如基站或网关，其中可以组合信号以增加信号质量。 移动台接收来自主卫星的前向链路信号，并监测来自主卫星和辅助卫星的信号质量。 如果来自主卫星的信号质量低于阈值，则通信信号被传送到辅助卫星。
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公开(公告)号：US20060239238A1
公开(公告)日：2006-10-26
申请号：US11394062
申请日：2006-03-29
IPC分类号： H04B7/216
CPC分类号： H04W36/32 , H04B7/01 , H04B7/18506 , H04W16/28 , H04W52/0206 , H04W52/267 , H04W52/325 , H04W52/367 , H04W52/40 , H04W52/50 , Y02D70/164 , Y02D70/44 , Y02D70/446
摘要： Various schemes are provided that facilitate a communication handoff from a current base station to a target base station. One feature provides for reducing the search space that a base station searches by providing it with the position/location and/or velocity of an access terminal with which it attempts to communicate. Having the position and/or velocity of the access terminal, a current or target base station is able to reduce its search space (e.g., direction, frequency range, and/or time window) for the access terminal. Another feature provides for selectively and gradually increasing the power of a pilot signal originating from the access terminal during the handoff acquisition period to a target base station. By increasing the pilot signal power, the base station has a better chance of acquiring the signal and do so more quickly.
摘要翻译： 提供了有助于从当前基站到目标基站的通信切换的各种方案。 一个特征提供了通过向基站提供与其尝试通信的接入终端的位置/位置和/或速度来减少基站搜索的搜索空间。 具有接入终端的位置和/或速度，当前或目标基站能够减少接入终端的搜索空间（例如方向，频率范围和/或时间窗）。 另一个特征提供了在切换获取周期期间将源自接入终端的导频信号的功率选择性地逐渐增加到目标基站。 通过增加导频信号功率，基站有更好的获取信号的机会并且更快地进行。
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公开(公告)号：US20050201335A1
公开(公告)日：2005-09-15
申请号：US10952970
申请日：2004-09-28
CPC分类号： H04W56/0005 , H04J13/16
摘要： Systems, methods and apparatus for configuring and accessing a random access channel in a CDMA communication system are disclosed. The number of users supported by a random access channel can be optimized by assigning a distinct time of arrival to each of a plurality of users. Each of the users can be time synchronized and can transmit data at a time that compensates for a propagation delay to allow the data to arrive at the destination receiver at the assigned time. In a CDMA system, each of the users can transmit data that is spread with the same spreading code, provided the cross correlation properties of the code are sufficient to allow identification of a source that is time offset relative to another user. The time of arrival can be determined based on the number of active users, and can be assigned as often as each transmission by each user.
摘要翻译： 公开了用于在CDMA通信系统中配置和访问随机接入信道的系统，方法和装置。 可以通过向多个用户中的每一个分配不同的到达时间来优化随机接入信道支持的用户数量。 每个用户可以是时间同步的，并且可以在补偿传播延迟的时间发送数据，以允许数据在分配的时间到达目的地接收机。 在CDMA系统中，如果代码的互相关属性足以允许识别相对于另一个用户的时间偏移的源，那么每个用户可以发送用相同的扩展码扩展的数据。 可以基于活动用户的数量来确定到达时间，并且可以分配给每个用户每次发送的频率。
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公开(公告)号：US20050118947A1
公开(公告)日：2005-06-02
申请号：US10940356
申请日：2004-09-13
申请人： William Ames , Leonard Schiff
发明人： William Ames , Leonard Schiff
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： 公开了一种用于无线通信系统的装置和方法，其中在可用频率带宽内分配了前向/上行链路部分和返回/上行链路部分。 更具体地，服务区域被划分为多个区域。 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。
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