ISO 22671:2021 空间数据和信息传输系统 空间链路扩展（SLE） 正向通信链路传输单元（CLTU）业务

标准编号：ISO 22671:2021

中文名称：空间数据和信息传输系统 空间链路扩展（SLE） 正向通信链路传输单元（CLTU）业务

英文名称：Space data and information transfer systems — Space link extension (SLE) — Forward communications link transmission unit (CLTU) service specification

发布日期：2021-06

标准范围

本文档根据参考文献[1]交叉支持参考模型-第1部分:SLE服务中规定的传输服务定义了通信链路传输单元（CLTU）服务。？前向CLTU服务是一种空间链路扩展（SLE）传输服务，使任务能够向航天器发送通信链路传输单元（CLTU）。本文档以抽象的方式根据以下方面定义了前向CLTU服务:提供转移服务所需的操作；与每个操作相关联的参数数据；调用每个操作所产生的行为；和操作和结果行为之间的关系和有效序列。它没有具体说明:单个实现或产品；实体或接口在真实系统中的实现；向航天器辐射数据和从从该航天器接收的信号中获取遥测帧以提取操作控制场所需的方法或技术；通信所需的方法或技术；或调度、配置和控制转发CLTU服务所需的管理活动。

This document defines the Communications Link Transmission Unit (CLTU) service in conformance with the transfer services specified in reference [1], Cross Support Reference Model—Part 1: SLE Services.  The Forward CLTU service is a Space Link Extension (SLE) transfer service that enables a mission to send Communications Link Transmission Units (CLTUs) to a spacecraft.This document defines, in an abstract manner, the Forward CLTU service in terms of:

1. the operations necessary to provide the transfer service;
2. the parameter data associated with each operation;
3. the behaviors that result from the invocation of each operation; and
4. the relationship between, and the valid sequence of, the operations and resulting behaviors.

1. individual implementations or products;
2. the implementation of entities or interfaces within real systems;
3. the methods or technologies required to radiate data to a spacecraft and to acquire telemetry frames from the signals received from that spacecraft for extraction of the Operational Control Field;
4. the methods or technologies required for communications; or
5. the management activities necessary to schedule, configure, and control the Forward CLTU service.

标准预览图