衛星システム内でのスペクトル効率の良いデータ送信のための方法および装置

    公开(公告)号:JP2020092425A

    公开(公告)日:2020-06-11

    申请号:JP2019222101

    申请日:2019-12-09

    Applicant: QUALCOMM INC

    Abstract: 【課題】衛星による、複数のユーザ端末へのゲートウェイによるスペクトル効率の良いデータ送信を可能とする通信衛星システムを提供する。【解決手段】本発明の一実施形態に係るゲートウェイは、単一のスロット内に複数のブロックを送信する。各ブロックは、ユーザ端末のうちの1つ宛であり、各ブロックは、所期のユーザ端末ごとに異なるものとすることのできる方式に従って符号化され、変調される。あるブロックが失われるか誤って受信される場合のブロックの再送信の際に、ブロックは、ブロックの第1の送信のものよりスペクトル的に非効率な別の方式に従ってコーディングされ、変調され得る。【選択図】図9

    Method and apparatus for receiving broadcast in wireless multiple-access communications system
    2.
    发明专利
    Method and apparatus for receiving broadcast in wireless multiple-access communications system 有权
    在无线多通道通信系统中接收广播的方法和装置

    公开(公告)号:JP2010283814A

    公开(公告)日:2010-12-16

    申请号:JP2010118274

    申请日:2010-05-24

    CPC classification number: H04W48/10 H04W48/18

    Abstract: PROBLEM TO BE SOLVED: To provide an access terminal for evaluating qualities of the available wireless broadcast channels that carry contents to be selected, and selects the best source of contents from among the available wireless broadcast channels, based upon the qualities.
    SOLUTION: An access terminal in a wireless multiple-access network monitors multiple broadcast soft handoff groups simultaneously in order to select the best logical broadcast channels to decode them based upon broadcast contents selected by a user of the access terminal. When an access terminal is in a traffic state, the access terminal decodes one or more broadcast channels by decoding a unicast channel from a traffic server during one time slot and then by decoding a broadcast channel from a broadcast server during another time slot.
    COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于评估携带要选择的内容的可用无线广播频道的质量的接入终端,并且基于该质量从可用无线广播信道中选择最佳内容源。 解决方案:无线多址网络中的接入终端基于接入终端的用户选择的广播内容,同时监视多个广播软切换组,以便选择最佳逻辑广播信道进行解码。 当接入终端处于业务状态时,接入终端在一个时隙内解码来自业务服务器的单播信道,然后在另一个时隙期间从广播服务器解码广播信道来解码一个或多个广播信道。 版权所有(C)2011,JPO&INPIT

    Method and system for adaptive server selection in wireless communication
    3.
    发明专利
    Method and system for adaptive server selection in wireless communication 有权
    无线通信中自适应服务器选择的方法与系统

    公开(公告)号:JP2011172239A

    公开(公告)日:2011-09-01

    申请号:JP2011058134

    申请日:2011-03-16

    CPC classification number: H04W36/18 H04W36/30 H04W36/38 H04W72/00 H04W99/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method for adaptive server selection in a wireless communication. SOLUTION: An access terminal may be configured to determine a forward link quality metric associated with each of a plurality of sectors serviced by a plurality of access points; assign credits to each sector in relation to the forward link quality metric; and change a data source control (DSC) value if the credits accumulated for a non-serving sector at a DSC change boundary is greater than a predetermined threshold, where the non-serving sector and the serving sector for the access terminal belong to different cells. The access terminal may be further configured to change a data rate control (DRC) cover in accordance with the DSC change. The use of DSC may provide an early indication of handoff, thereby allowing the service outage associated with server switching to be substantially reduced. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于无线通信中的自适应服务器选择的方法。 解决方案:接入终端可以被配置为确定与由多个接入点服务的多个扇区中的每一个相关联的前向链路质量度量; 根据前向链路质量度量为每个扇区分配信用; 并且如果在DSC变化边界处为非服务扇区累积的积分大于预定阈值,则所述数据源控制(DSC)值改变,其中所述非服务扇区和所述接入终端的服务扇区属于不同的小区 。 接入终端还可以被配置为根据DSC变化改变数据速率控制(DRC)覆盖。 使用DSC可以提供切换的早期指示,从而允许大大减少与服务器切换相关联的服务中断。 版权所有(C)2011,JPO&INPIT

    ADAPTIVE RATE PRIORITIZING
    4.
    发明申请
    ADAPTIVE RATE PRIORITIZING 审中-公开
    自适应率优先

    公开(公告)号:WO2004088907A2

    公开(公告)日:2004-10-14

    申请号:PCT/US2004008949

    申请日:2004-03-23

    CPC classification number: H04L1/0019 H04L1/0002 H04L1/0007 H04L1/0025

    Abstract: Systems and techniques are disclosed relating to communications. The systems and techniques involve measuring a quality of a transmission from a remote location, identifying a data rate as a function of the measured quality, the identified data rate being capable of supporting a plurality of packet lengths, selecting one of the packet lengths as a function of a parameter of the measured quality, and providing feedback to the remote location, the feedback relating to the data rate and the selected one of the packet lengths. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or the meaning of the claims.

    Abstract translation: 公开了与通信相关的系统和技术。 系统和技术涉及测量来自远程位置的传输的质量,识别作为测量质量的函数的数据速率,所识别的数据速率能够支持多个分组长度,将分组长度之一选择为 测量质量的参数的功能,以及向远程位置提供与数据速率相关的反馈以及所选择的一个分组长度的反馈。 要强调的是,该摘要被提供以符合要求摘要的规则,这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是,它不会用于解释或限制权利要求的范围或含义。

    METHOD AND APPARATUS FOR TIME OR FREQUENCY SYNCHRONIZATION IN NON-GEOSYNCHRONOUS SATELLITE COMMUNICATION SYSTEMS
    5.
    发明申请
    METHOD AND APPARATUS FOR TIME OR FREQUENCY SYNCHRONIZATION IN NON-GEOSYNCHRONOUS SATELLITE COMMUNICATION SYSTEMS 审中-公开
    用于非地同步卫星通信系统中的时间或频率同步的方法和设备

    公开(公告)号:WO2016153823A9

    公开(公告)日:2017-05-11

    申请号:PCT/US2016022180

    申请日:2016-03-11

    Applicant: QUALCOMM INC

    Abstract: Method and apparatus for time or frequency synchronization of radio signals transmitted by user terminals in communication with a gateway through a satellite is provided. The satellite may be part of a non-synchronous satellite communication system, such as a low-earth orbit (LEO) satellite communication system for data, voice or video communications. Times of transmission of return link radio signals from the user terminals may be adjusted such that the signals arrive at the satellite or at the gateway without large time delay differentials. Carrier frequencies of return link radio signals transmitted from the user terminals may be adjusted such that the signals arrive at the satellite or at the gateway without large frequency offset differentials.

    Abstract translation: 提供了用于通过卫星与网关通信的用户终端发送的无线电信号的时间或频率同步的方法和装置。 卫星可以是非同步卫星通信系统的一部分,例如用于数据,语音或视频通信的低地球轨道(LEO)卫星通信系统。 可以调整来自用户终端的返回链路无线电信号的传输时间,使得信号到达卫星或在网关处没有大的时间延迟差分。 可以调整从用户终端发送的返回链路无线电信号的载波频率,使得信号到达卫星或在没有大频率偏移差别的网关处。

    Transmisiones de datos basadas en contienda en el enlace de retorno

    公开(公告)号:ES2784938T3

    公开(公告)日:2020-10-02

    申请号:ES16828890

    申请日:2016-12-29

    Applicant: QUALCOMM INC

    Abstract: Un procedimiento (1100) de comunicación inalámbrica en un sistema de satélites en órbita no geosíncrona, NGSO, el procedimiento realizado por un terminal de usuario, UT, y que comprende: recibir (1101) datos para su transmisión a un controlador de red por medio de un satélite; recibir (1102), desde el controlador de red, una activación de recursos basados en contienda del sistema de satélites; transmitir (1106), durante un período de tiempo, una primera porción de los datos en una pluralidad de subtramas de los recursos basados en contienda antes de recibir una concesión de recursos de enlace de retorno planificados; y finalizar (1112) transmisiones de datos en los recursos basados en contienda después de que expire el período de tiempo o al recibir la concesión de recursos de enlace de retorno planificados durante el período de tiempo, independientemente de las colisiones en los recursos basados en contienda.

    METHOD AND APPARATUS FOR SPECTRAL EFFICIENT DATA TRANSMISSION IN SATELLITE SYSTEMS

    公开(公告)号:SG11201706052YA

    公开(公告)日:2017-10-30

    申请号:SG11201706052Y

    申请日:2016-03-11

    Applicant: QUALCOMM INC

    Abstract: A communication satellite system provides for spectral efficient data transmissions by a gateway to multiple user terminals by way of a satellite. The gateway transmits multiple blocks in a single slot, each block intended for one of the user terminals, where each block is encoded and modulated according to a scheme that may be different for each intended user terminal. Upon re-transmission of a block if that block is lost or received in error, the block may be encoded and modulated according to another scheme that is less spectrally efficient than in the first transmission of the block.

    ENVIO DE PILOTOS MEDIANTE SELECCION DE RECURSOS UTILIZADOS PARA LOS MISMOS.

    公开(公告)号:MX2010012681A

    公开(公告)日:2010-12-20

    申请号:MX2010012681

    申请日:2009-05-21

    Applicant: QUALCOMM INC

    Abstract: Se describen técnicas para transmitir y recibir pilotos (señales de referencia) en una red inalámbrica. En un aspecto, toda la información puede transportarse de acuerdo con recursos específicos utilizados para enviar una señal, como por ejemplo, un piloto. Una función pseudo-aleatoria puede recibir la información para transportar mediante el piloto y posiblemente otra información y para proporcionar valores pseudo-aleatorios, que pueden utilizarse para seleccionar los recursos para utilizar para enviar el piloto. En un diseño con transmisor (por ejemplo una estación base para un sector) puede determinar primero la primera información (por ejemplo, una ID de sector) para transportar mediante un piloto y también puede determinar la segunda información para tiempo absoluto (por ejemplo, un índice de ciclo de piloto). El transmisor puede determinar recursos (por ejemplo, intervalos) usados para enviar el piloto de acuerdo con la primera y segunda información y posiblemente además de acuerdo con un desplazamiento de PN pseudo-aleatorio asignado al sector. El transmisor puede transmitir el piloto en los recursos determinados. La ID de sector puede recuperarse en un receptor de acuerdo con un índice de piloto y otra información.

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