Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint
    141.
    发明授权
    Systems and methods for inter-system sharing of satellite communications frequencies within a common footprint 有权
    卫星通信频率在共同足迹之间进行系统间共享的系统和方法

    公开(公告)号:US07925209B2

    公开(公告)日:2011-04-12

    申请号:US11457605

    申请日:2006-07-14

    CPC classification number: H04B7/18513 Y02D70/1222 Y02D70/164 Y02D70/446

    Abstract: Two satellite communications systems can use the same frequency or frequencies in geographically overlapping footprints, without creating undue interference in a given system that is caused by the same frequency signal(s) that is/are used by the other system. In particular, an aggregate Effective Isotropic Radiated Power (EIRP) of the radioterminals and/or ancillary terrestrial components of a second satellite communications system in the common footprint is sufficiently low, and/or the receive antenna gain of a first satellite communications system is sufficiently low compared to the receive antenna gain of the second satellite communications system, so as to increase an aggregate receiver noise that is seen by the first satellite system receivers by an amount that does not substantially change a Quality of Service (QoS) of the first satellite communications system.

    Abstract translation: 两个卫星通信系统可以在地理上重叠的覆盖区域中使用相同的频率或频率,而不会在由另一系统使用的相同频率信号引起的给定系统中造成不必要的干扰。 特别地,在公共覆盖区中第二卫星通信系统的无线电终端和/或辅助地面部件的总有效各向同性辐射功率(EIRP)足够低,和/或第一卫星通信系统的接收天线增益足够 与第二卫星通信系统的接收天线增益相比较低,以便增加由第一卫星系统接收机看到的总体接收机噪声的量,其基本上不改变第一卫星的服务质量(QoS) 通讯系统

    Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes
    143.
    发明授权
    Satellite/terrestrial wireless communications systems and methods using disparate channel separation codes 有权
    卫星/地面无线通信系统和使用不同信道分离码的方法

    公开(公告)号:US07899002B2

    公开(公告)日:2011-03-01

    申请号:US12540873

    申请日:2009-08-13

    CPC classification number: H04B7/18563

    Abstract: A wireless communications system includes a space-based component (SBC) and an ancillary terrestrial component (ATC) configured to communicate with radioterminals using a common satellite service link frequency band and respective first and second different sets of channel separation codes. The first and second sets of channel separation codes may include, for example, respective sets of scrambling codes, respective sets of frequency assignment codes, respective sets of channel assignment codes, respective sets of sub-channel assignment codes and/or respective sets of spreading codes.

    Abstract translation: 无线通信系统包括基于空间的组件(SBC)和配置成使用公共卫星服务链路频带和相应的第一和第二不同组的信道分离码与无线电终端通信的辅助地面组件(ATC)。 第一和第二组信道分离码可以包括例如相应的扰码集合,频率分配码的相应集合,信道分配码的相应集合,子信道分配码的相应集合和/或相应的扩展集合 代码。

    Radioterminals Including Satellite Interlocks and Related Methods
    145.
    发明申请
    Radioterminals Including Satellite Interlocks and Related Methods 有权
    包括卫星联锁和相关方法的辐射终端

    公开(公告)号:US20110028188A1

    公开(公告)日:2011-02-03

    申请号:US12902449

    申请日:2010-10-12

    Abstract: A radioterminal may include a transceiver, a hands-free interface, and a satellite/hands-free interlock. The transceiver may be configured for space-based communications and for terrestrial wireless communications. The satellite/hands-free interlock may be configured to prevent the transceiver from transmitting space-based communications unless the hands-free interface is activated. Related methods are also discussed.

    Abstract translation: 无线电终端可以包括收发器,免提接口和卫星/免提互锁。 收发器可以被配置用于基于空间的通信和用于地面无线通信。 卫星/免提联锁可以被配置为防止收发器发送基于空间的通信,除非免提接口被激活。 还讨论了相关方法。

    Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility
    146.
    发明授权
    Wireless communications systems and/or methods providing low interference, high privacy and/or cognitive flexibility 有权
    提供低干扰,高隐私和/或认知灵活性的无线通信系统和/或方法

    公开(公告)号:US07876845B2

    公开(公告)日:2011-01-25

    申请号:US12372354

    申请日:2009-02-17

    CPC classification number: H04B1/692 H04K1/00 H04K3/25 H04K3/827 H04L23/02

    Abstract: Communications systems and/or methods are disclosed that can provide extreme privacy, cognitive radio capability, robustness to fading and interference, communications performance associated with M-ary orthonormal signaling and/or high multiple-access capacity. Embodiments can use spread-spectrum waveforms that are featureless, devoid of chipping and devoid of cyclostationary signatures, statistically indistinguishable from thermal noise and able to cognitively fit within any available frequency space (narrow-band, broad-band, contiguous, non-contiguous). Some embodiments maintain all desirable features of classical direct-sequence spread-spectrum communications while providing new dimensions that are important to communications systems. Embodiments of the invention can provide M-ary orthonormal signaling with chipless spread-spectrum waveforms to provide extreme covertness and privacy. Moreover, embodiments of the invention may be used to cognitively and covertly utilize spectrum resources at minimal impact to incumbent users. Further embodiments may be used to provide minimum interference, opportunistic, “white space spectrum” communications.

    Abstract translation: 公开了可以提供极端隐私,认知无线电能力,对衰落和干扰的鲁棒性,与M-ary正交信令相关联的通信性能和/或高多址访问能力的通信系统和/或方法。 实施例可以使用无特征的扩频波形,没有切片并且没有循环平稳签名,在热噪声方面统计学上无法区分,并且能够认知地适应任何可用的频率空间(窄带,宽带,连续,不连续) 。 一些实施例保持经典直接序列扩频通信的所有期望特征,同时提供对通信系统重要的新维度。 本发明的实施例可以提供具有无毛刺扩频波形的M型正交信号,以提供极端的隐蔽性和隐私性。 此外,本发明的实施例可以用于以对目前用户的最小影响来认知和隐蔽地利用频谱资源。 可以使用其他实施例来提供最小干扰,机会主义的“白空间频谱”通信。

    Satellite communications systems and methods using substantially co-located feeder link antennas
    147.
    发明授权
    Satellite communications systems and methods using substantially co-located feeder link antennas 有权
    使用基本上同位置的馈线链路天线的卫星通信系统和方法

    公开(公告)号:US07831202B2

    公开(公告)日:2010-11-09

    申请号:US11463120

    申请日:2006-08-08

    CPC classification number: H04B7/18532 H04B7/18521

    Abstract: A satellite communications system includes a plurality of feeder link antennas, a primary satellite, and an auxiliary satellite. The feeder link antennas are substantially co-located relative to one another. The primary satellite is configured to receive information over a plurality of return service links from radioterminals, to communicate a first portion of the information over at least one return feeder link directly to a first one of the feeder link antennas, and to communicate a second portion of the information over at least one inter-satellite link. The auxiliary satellite is spaced apart from the primary satellite, and configured to receive the second portion of the information from the primary satellite via the at least one inter-satellite link, and to communicate the second portion of the information across at least one return feeder link to a second one of the feeder link antennas.

    Abstract translation: 卫星通信系统包括多个馈线链路天线,主卫星和辅助卫星。 馈线链路天线相对于彼此基本上共同定位。 主卫星被配置为通过来自无线电终端的多个返回服务链路接收信息,以通过至少一个返回馈线链路将信息的第一部分直接传送到馈线链路天线中的第一个,并且将第二部分 通过至少一个卫星间链路的信息。 辅助卫星与主卫星间隔开,并被配置为经由至少一个卫星间链路从主卫星接收信息的第二部分,并且将信息的第二部分通过至少一个返回馈线 链接到第二个馈线链路天线。

    Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies
    148.
    发明授权
    Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies 有权
    响应于卫星频率的陆地使用来配置卫星天线小区模式的方法和系统

    公开(公告)号:US07801520B2

    公开(公告)日:2010-09-21

    申请号:US11866656

    申请日:2007-10-03

    Abstract: Space-based wireless radiotelephone communications are provided in a satellite footprint over a satellite radiotelephone frequency band. The satellite footprint is divided into satellite cells in which satellite radiotelephone frequencies of the satellite radiotelephone frequency band are spatially reused. At least one of the satellite radiotelephone frequencies that is assigned to a given satellite cell in the satellite footprint is terrestrially reused outside the given satellite cell. A radiation pattern of at least the given satellite cell is modified to reduce interference with the at least one of the satellite radiotelephone frequencies that is terrestrially reused outside the given satellite cell.

    Abstract translation: 在卫星无线电话频段的卫星覆盖区域中提供了基于空基的无线电话通信。 卫星覆盖区分为卫星小区,卫星无线电话频段的卫星无线电话频率在空间上重复使用。 分配给卫星覆盖区中的给定卫星小区的卫星无线电话频率中的至少一个在特定卫星小区之外被地域重用。 修改至少给定卫星小区的辐射图,以减少对给定卫星小区之外的陆地重用的卫星无线电话频率中的至少一个的干扰。

    Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links
    149.
    发明授权
    Systems and methods for terrestrial reuse of cellular satellite frequency spectrum using different channel separation technologies in forward and reverse links 有权
    在前向和反向链路中使用不同信道分离技术的蜂窝卫星频谱陆地再利用的系统和方法

    公开(公告)号:US07792069B2

    公开(公告)日:2010-09-07

    申请号:US11762323

    申请日:2007-06-13

    CPC classification number: H04B7/1851

    Abstract: A wireless communications system includes a terrestrial network that is configured to receive wireless communications from radiotelephones over satellite band frequencies that are divided into channels that are separated by one of frequency or code (e.g., OFDMA or CDMA). The terrestrial network is also configured to transmit wireless communications to radiotelephones over satellite band frequencies that are divided into channels that are separated by a different one of frequency or code (e.g., CDM or OFDM). Related devices and methods are also disclosed.

    Abstract translation: 无线通信系统包括被配置为通过卫星频带上的无线电话机接收无线通信的地面网络,所述无线电话机被划分成由频率或代码之一(例如,OFDMA或CDMA)分离的信道。 地面网络还被配置为通过卫星频带频率向无线电话机发送无线通信,所述无线电话机被划分成由频率或代码(例如,CDM或OFDM)中的不同频率分隔的信道。 还公开了相关的装置和方法。

    ADAPTIVE BEAM FORMING WITH MULTI-USER DETECTION AND INTERFERENCE REDUCTION IN SATELLITE COMMUNICATION SYSTEMS AND METHODS

    公开(公告)号:US20100184370A1

    公开(公告)日:2010-07-22

    申请号:US12689590

    申请日:2010-01-19

    CPC classification number: H04B7/18563 H04B7/18513

    Abstract: Satellite communications methods include receiving communications signals including co-channel interference at a space-based component from a plurality of wireless terminals in a satellite footprint over a satellite frequency band and reducing interference in the communication signals by (a) performing co-channel interference reduction on the communications signals to generate a plurality of interference reduced signals and (b) performing multiple access interference cancellation on the interference reduced signals. An interference reducing detector for a satellite communications system includes an interference reducer configured to perform co-channel interference reduction on communications signals to generate a plurality of interference reduced signals, and a detector configured to perform multiple access interference cancellation on the interference reduced signals. Satellite communications systems and satellite gateways including interference reducing detectors are also disclosed.

Patent Agency Ranking