SYSTEMS AND METHODS FOR SUPPORTING AN ENHANCED SERVING CELL CHANGE WHEN MOVING AMONG DIFFERENT CELL TYPES
    1.
    发明申请
    SYSTEMS AND METHODS FOR SUPPORTING AN ENHANCED SERVING CELL CHANGE WHEN MOVING AMONG DIFFERENT CELL TYPES 有权
    用于在不同细胞类型移动时支持增强的服务小区更改的系统和方法

    公开(公告)号:US20150099520A1

    公开(公告)日:2015-04-09

    申请号:US14567090

    申请日:2014-12-11

    CPC classification number: H04W36/0061 H04W36/0072 H04W36/18

    Abstract: A system and method enable handover from a DC-HSUPA-capable node in a cellular wireless network to a non-DC-HSUPA-capable node. According to various aspects of the present disclosure, a handover may implement a legacy serving cell change procedure or an enhanced serving cell change procedure. In either case, signaling from the network to user equipment includes information to enable the user equipment to change or remove an Active Set when undergoing a handover from a cell with two uplink carriers and accordingly two Active Sets, to a cell with one uplink carrier and accordingly one Active Set.

    Abstract translation: 一种系统和方法使得能够从蜂窝无线网络中的支持DC-HSUPA的节点切换到具有非DC-HSUPA能力的节点。 根据本公开的各个方面,切换可以实现传统服务小区改变过程或增强的服务小区改变过程。 在任一种情况下,从网络到用户设备的信令包括信息,以使得用户设备能够在从具有两个上行链路载波的小区和相应的两个活动集进行切换时改变或去除活动集到具有一个上行链路载波的小区 因此一个活动集。

    Duty cycle-based power control scheme for satellite communication

    公开(公告)号:US10412685B2

    公开(公告)日:2019-09-10

    申请号:US15146560

    申请日:2016-05-04

    Abstract: Various aspects of the disclosure relate to controlling the transmit power of a satellite by controlling a duty cycle associated with satellite transmission. In some implementations, a satellite network portal (SNP) may send waveforms to a satellite that relays the waveforms to user terminals (UTs). The SNP may control the duty cycle of the waveform transmission (e.g., by transmitting on a subset of a subframe) to thereby control an average transmission power of the satellite when the satellite transmits to the UTs. In some implementations, a satellite or UT may control the duty cycle of transmission by the satellite (e.g., by transmitting on a subset of a subframe) to thereby control an average transmission power of the satellite when the satellite transmits.

    SATELLITE-TO-SATELLITE HANDOFF IN SATELLITE COMMUNICATIONS SYSTEM
    3.
    发明申请
    SATELLITE-TO-SATELLITE HANDOFF IN SATELLITE COMMUNICATIONS SYSTEM 有权
    卫星通信卫星卫星通信系统

    公开(公告)号:US20170041830A1

    公开(公告)日:2017-02-09

    申请号:US14857560

    申请日:2015-09-17

    Abstract: Aspects of the disclosure provide a handoff procedure for a satellite communication system such as a broadband low-Earth orbit (LEO) satellite communication system. A gateway and a user terminal (UT) coordinate and schedule a satellite-to-satellite handoff in such a way that there are no messaging round-trip delays between the last return service link (RSL) packet transmitted from the user terminal to the source satellite and the first RSL packet transmitted from the user terminal to the target satellite. Therefore, an outage on the return link (from the user terminal to the gateway) can be limited to the actual time for moving the antenna feed from the source satellite to the target satellite. Furthermore, an outage on the forward link (from the gateway to the user terminal) can be limited to a single round-trip delay in addition to the time for moving the antenna feed.

    Abstract translation: 本公开的方面提供了诸如宽带低地球轨道(LEO)卫星通信系统的卫星通信系统的切换过程。 网关和用户终端(UT)协调和调度卫星到卫星的切换,使得在从用户终端发送到源的最后一个返回服务链路(RSL)分组之间不存在消息往返延迟 卫星和从用户终端发送到目标卫星的第一RSL分组。 因此,返回链路(从用户终端到网关)的中断可以限于将天线馈送从源卫星移动到目标卫星的实际时间。 此外,除了移动天线馈送的时间之外,前向链路(从网关到用户终端)的中断可以被限制为单个往返延迟。

    Apparatus and methods of frequency spectrum usage in a wireless communication system
    4.
    发明授权
    Apparatus and methods of frequency spectrum usage in a wireless communication system 有权
    无线通信系统中频谱使用的装置和方法

    公开(公告)号:US09179451B2

    公开(公告)日:2015-11-03

    申请号:US14099609

    申请日:2013-12-06

    Abstract: Techniques of frequency spectrum usage in a wireless communication system include configuring two or more downlink carriers, each having a downlink carrier center frequency, to have a total occupied bandwidth that is constrained within an allocated downlink frequency spectrum. Further, the techniques include transmitting, to a user equipment (UE), two or more downlink carrier center frequency indicators that each identify a downlink carrier center frequency of each of the two or more downlink carriers. Also, the present techniques may include transmitting, to the UE, at least one uplink carrier center frequency indicator that at least relatively identifies at least one uplink carrier center frequency of at least one uplink carrier that is configured to have an independent, variable offset relative to one or more of the more than two downlink carriers. As such, these aspects allow new ways of squeezing carriers into the downlink while not impacting UE transmitter complexity.

    Abstract translation: 在无线通信系统中频谱使用的技术包括配置两个或更多个下行链路载波,每个下行链路载波具有下行链路载波中心频率,以使得被占用的总占用带宽被限制在分配的下行链路频谱内。 此外,这些技术包括向用户设备(UE)发送两个或更多个下行链路载波中心频率指示符,每个下行链路载波中心频率指示符标识两个或更多个下行链路载波中的每一个的下行链路载波中心频率。 此外,本技术可以包括向UE发送至少一个上行链路载波中心频率指示符,该至少一个上行链路载波中心频率指示符至少相对地标识至少一个上行链路载波的至少一个上行链路载波中心频率,其被配置为具有独立的, 到多于两个的下行链路载波中的一个或多个。 因此,这些方面允许将载波挤压到下行链路的新方法,而不影响UE发射机的复杂性。

    Satellite-to-satellite handoff in satellite communications system

    公开(公告)号:US09681337B2

    公开(公告)日:2017-06-13

    申请号:US14857560

    申请日:2015-09-17

    Abstract: Aspects of the disclosure provide a handoff procedure for a satellite communication system such as a broadband low-Earth orbit (LEO) satellite communication system. A gateway and a user terminal (UT) coordinate and schedule a satellite-to-satellite handoff in such a way that there are no messaging round-trip delays between the last return service link (RSL) packet transmitted from the user terminal to the source satellite and the first RSL packet transmitted from the user terminal to the target satellite. Therefore, an outage on the return link (from the user terminal to the gateway) can be limited to the actual time for moving the antenna feed from the source satellite to the target satellite. Furthermore, an outage on the forward link (from the gateway to the user terminal) can be limited to a single round-trip delay in addition to the time for moving the antenna feed.

    DUTY CYCLE-BASED POWER CONTROL SCHEME FOR SATELLITE COMMUNICATION
    7.
    发明申请
    DUTY CYCLE-BASED POWER CONTROL SCHEME FOR SATELLITE COMMUNICATION 审中-公开
    用于卫星通信的基于周期的功率控制方案

    公开(公告)号:US20170078978A1

    公开(公告)日:2017-03-16

    申请号:US15146560

    申请日:2016-05-04

    CPC classification number: H04W52/18 H04B7/18543 H04W72/0446 H04W84/06

    Abstract: Various aspects of the disclosure relate to controlling the transmit power of a satellite by controlling a duty cycle associated with satellite transmission. In some implementations, a satellite network portal (SNP) may send waveforms to a satellite that relays the waveforms to user terminals (UTs). The SNP may control the duty cycle of the waveform transmission (e.g., by transmitting on a subset of a subframe) to thereby control an average transmission power of the satellite when the satellite transmits to the UTs. In some implementations, a satellite or UT may control the duty cycle of transmission by the satellite (e.g., by transmitting on a subset of a subframe) to thereby control an average transmission power of the satellite when the satellite transmits.

    Abstract translation: 本公开的各个方面涉及通过控制与卫星传输相关联的占空比来控制卫星的发射功率。 在一些实施方式中,卫星网络门户(SNP)可向向用户终端(UT)传送波形的卫星发送波形。 SNP可以控制波形发送的占空比(例如,通过在子帧的子集上发送),从而当卫星发送到UT时,控制卫星的平均发送功率。 在一些实施方式中,卫星或UT可以控制卫星发射的占空比(例如,通过在子帧的子集上发射),从而在卫星发射时控制卫星的平均发射功率。

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