Method and system for processing data in a telecommunications system for dynamic adaptation to the quantity of data to be transmitted

    公开(公告)号:US09800370B2

    公开(公告)日:2017-10-24

    申请号:US14885877

    申请日:2015-10-16

    申请人: THALES

    发明人: Mathieu Gineste

    摘要: A method of processing data in a telecommunications system enabling dynamic adaptation of the quantity of data to transmit. The data is organized into a set of packets contained in a first layer of a communication model. The method includes a first step of passage of an item of information indicating the size of each packet or representative of this size between the first layer and a second layer. It also includes a second step of encapsulation of the packet and of passage of the packet between the first layer and the second layer in a container the size of which is adapted to the information indicating the size of a packet or representative of this size. The method finally includes a third step of application of a block error correcting code to the data contained in the container, the correcting code adapting dynamically to the size of the container.

    Method and system for an optimized retransmission of a message in a satellite communications context
    2.
    发明授权
    Method and system for an optimized retransmission of a message in a satellite communications context 有权
    用于卫星通信环境中消息的优化重传的方法和系统

    公开(公告)号:US08798068B2

    公开(公告)日:2014-08-05

    申请号:US13721823

    申请日:2012-12-20

    申请人: THALES

    发明人: Mathieu Gineste

    IPC分类号: H04L12/28 H04L12/56 H04B7/155

    摘要: A communications method for retransmission of at least one fragment of a lost or erroneous message from a terminal to a gateway over a communications network comprising a plurality of terminals, communicating over a demand assignment multiple access and comprising a control center allocating the communications resource to the terminals, comprises: detection, by the gateway, of fragments of lost or erroneous messages and, when at least one fragment is detected, notification via the gateway to the control center of the loss of at least one fragment; calculation, by the control center, of a second allocation plan taking into account a new transmission of the fragment; notification by the gateway to the terminal of the loss of the fragment and notification by the control center to the terminal of the second allocation plan; transmission by the terminal of the lost fragment according to the second allocation plan to the gateway.

    摘要翻译: 一种用于通过包括多个终端的通信网络从终端向网关重传丢失或错误消息的至少一个片段的通信方法,其通过请求分配多址进行通信,并且包括将通信资源分配给 终端包括:由网关检测丢失或错误消息的片段,并且当检测到至少一个片段时,通过网关向控制中心通知至少一个片段的丢失; 由控制中心计算考虑到片段的新传输的第二分配计划; 网关向终端通知由控制中心向第二分配计划终端发送的分段丢失和通知; 根据第二分配方案将丢失的片段的终端传输到网关。

    Space communication method for IoT services and corresponding space telecommunications system

    公开(公告)号:US11881928B2

    公开(公告)日:2024-01-23

    申请号:US16500778

    申请日:2018-03-27

    申请人: THALES

    IPC分类号: H04B7/185 H04B7/195 H04W74/08

    摘要: A method of space communication for IoT or equivalent services increases the number of terminals served on a space transmission resource while limiting the signaling used by the terminal. This limitation is obtained on the one hand by the allotting to each terminal of a logical beam, corresponding to a predetermined fixed geographical area wherein the terminal lies. This limitation is obtained on the other hand by management, centralized at the level of a central entity for connecting to the space network, of the association of the terminal with a logical beam and of the association of the resources bound for the logical attachment beam. A space telecommunications system implements a method of space communication. The method of space communication allows transparent switchover from a terrestrial system to the space system when the terrestrial system and the space system are integrated to a high degree, particularly at the level of the terminal.

    Method for dynamically adapting the capacity of a contention transmission channel

    公开(公告)号:US10104697B2

    公开(公告)日:2018-10-16

    申请号:US15269679

    申请日:2016-09-19

    申请人: THALES

    摘要: A method of adapting the capacity of a contention transmission channel between terminals and a connection station comprises a step of continuous estimation, using measurements in reception of expected bursts, a probability of receiving an empty expected burst Pe, or the probability Pe and a measured probability of receiving a burst Ps, or a probability of receiving a burst having undergone a collision Pc. The method determines a current quantity Gr, monotonically sensitive to the external loading of the contention channel, using an estimated probability, Pe or Pc, or of the two estimated probabilities Pe and Ps, and detects whether a crossing of a threshold from among two predetermined thresholds while deviating from a fixed nominal value of Gr has occurred to decide to increase or decrease the current capacity of the transmission channel. The connection station notifies the terminals in quasi-real-time of the current composition of the transmission channel.

    Method of controlling congestion for contention access network

    公开(公告)号:US09843957B2

    公开(公告)日:2017-12-12

    申请号:US14245244

    申请日:2014-04-04

    申请人: THALES

    摘要: A method of controlling congestion in a communications network comprising a plurality of terminals, comprises the steps of: receiving a message or a message fragment at a given instant; evaluating the number of terminals currently sending; defining a congestion window, of duration ΔTf configured so as to be proportional to the number N of terminals currently sending and inversely proportional to the maximum input loading G of the network which makes it possible to obtain a substantially zero rate of retransmissions; for each terminal and each message or message fragment to be sent, make the start of the congestion window coincide with the given instant of receipt of a message or message fragment and define an actual instant of sending of the message or message fragment as a random value taken in the congestion window.

    Method for optimizing the resources of a data transmission at the level of the MAC layer and device implementing the method
    8.
    发明授权
    Method for optimizing the resources of a data transmission at the level of the MAC layer and device implementing the method 有权
    MAC层级数据传输资源优化方法及实现方法的方法

    公开(公告)号:US09131393B2

    公开(公告)日:2015-09-08

    申请号:US13970395

    申请日:2013-08-19

    申请人: THALES

    IPC分类号: H04L1/00 H04W24/02

    摘要: A method for optimizing the resources of a data transmission, based on a set of pairs of modulation and first correcting code, includes: determining, for each pair, maximum rate of a second correcting code applied to data transmitted before application of the first correcting code and of modulation wherein the error rate in data received is maximum a target error rate; the second correcting code applied at the medium access layer, to generate packets of redundancy bits based on packets of data bits received supplemented with padding sections, all having the same size; evaluating an item of information representative of the ratio between bits at input of the medium access layer and bits actually transmitted or of transmission bitrate required for solutions associating modulation, first and second correcting codes; selecting, from among solutions associating modulation, first and second correcting codes, to maximize the ratio or to minimize the transmission bitrate.

    摘要翻译: 一种用于基于一组调制和第一校正码优化数据传输的资源的方法包括:针对每一对,确定应用于在施加第一校正码之前发送的数据的第二校正码的最大速率 以及其中所接收的数据中的错误率最大化的目标错误率的调制; 所述第二校正码应用在所述媒体接入层,基于所接收的补充有填充部分的数据比特的数据包生成分组,所述填充部分全部具有相同的大小; 评估表示介质接入层的输入端与实际发送的比特之间的比率的信息项,或者将调制,第一和第二校正码相关联的解所需的传输比特率; 从关联调制的解决方案中选择第一和第二校正码,以最大化比率或使传输比特率最小化。