M17 传输系统组群、频谱安排 标准查询与下载

ITU-T X.216 AMD 1-1997 信息技信息技术—开放系统互连—表示业务定义. 修改件1:效率增强-系列X

The fast associate (upper-layer context identifier) mechanism allows a presentation connection, and the application association it carries to be established using a compressed form of the information that would otherwise be sent on the P-CONNECT exchang

Information Technology - Open Systems Interconnection - Presentation Service Definition; Amendment 1: Efficiency Enhancements - Series X: Data Networks and Open System Communication; Open System Interconnection - Service Definitions

ITU-T X.224 AMD 1-1997 信息技术—开放系统互连—提供连接模式传输业务协议 修订1:等级一致性要求放宽和加速的数据业务特征商议

This Amendment introduces optionai enhancements to the protocol for providing the connection-mode Transport Service (see ITU-T Rec. X.224 1 ISO/IEC 8073), to take into account the requirements of OS1 users who do not have a need for full implementation.

Information Technology - Open Systems Interconnection - Protocol for Providing the Connection-Mode Transport Service Amendment 1: Relaxation of Class Conformance Requirements and Expidted Data Service Feature Negotiation - Series X: Data Networks and Open

ETSI TR 101 092-1997 网络方面(NA).载波选择报告(版本1.1.1)

Network Aspects (NA); Report on Carrier Selection (V1.1.1)

ITU-R M.1315 FRENCH-1997 1 GHz以下低地球轨道空间站中窄带移动卫星网对直接序列频谱扩展移动卫星网络的干扰评估方法论

Simplified and detailed methodologies are presented for evaluating the effect of narrow-band interfering signals on spread-spectrum communication channels. The methodologies allow a rapid comparison of the relative effects of changes to parameters of the desired and interfering signals, such as power level, bandwidth, and frequency offset, which may be investigated to facilitate sharing between narrow-band and spread-spectrum mobile-satellite networks.

METHODOLOGY FOR EVALUATING INTERFERENCE FROM NARROW-BAND MOBILE-SATELLITE NETWORKS TO SPREAD-SPECTRUM DIRECT-SEQUENCE MOBILE-SATELLITE NETWORKS OPERATING WITH SPACE STATIONS IN LOW-EARTH ORBIT AT FREQUENCIES BELOW 1 GHz

ITU-R SM.856-1-1997 新的频谱效率技术和系统

Future examples will be included with the objective of increasing spectrum utilization.

New Spectrally Efficient Techniques and Systems

ITU-R M.1310-1997 传送信息和控制系统(TICS)-目标和要求

This Recommendation provides the radio requirements aspects of Transport Information and Control Systems (TICS). TICS are systems utilizing the combination of computers, communications, positioning, and automation technologies to improve the safety, mana

Transport Information and Control Systems (TICS) - Objectives and Requirements

ITU-R QUESTION 205-1/1-1997 频谱利用的长期策略

The ITU Radiocommunication Assembly considering a)that the spectrum is a limited resource of both economic and social value;b)that the requirements for use of the spectrum, including new applications, are increasing;c)that decisions on spectrum utilization can lead to large financial investments on the part of radio service operators, users and suppliers.

Long-term strategies for spectrum utilization

ITU-R SM.1271 FRENCH-1997 使用概率方法的高效频谱利用

In land mobile systems, the reuse distance between Co-channel base stations is traditionally determined according to acceptable level of interference at the victim mobile station. This is a “deterministic” methodology in which probability of interference is not considered. Hence, the reuse distance calculation is based on worst case scenarios. Clearly, such systems do not frequently operate in such scenarios, hence leading to inefficient use of spectrum.

EFFICIENT SPECTRUM UTILIZATION USING PROBABILISTIC METHODS

ITU-R M.1315 SPANISH-1997 1 GHz以下低地球轨道空间站中窄带移动卫星网对直接序列频谱扩展移动卫星网络的干扰评估方法论

Simplified and detailed methodologies are presented for evaluating the effect of narrow-band interfering signals on spread-spectrum communication channels. The methodologies allow a rapid comparison of the relative effects of changes to parameters of the desired and interfering signals, such as power level, bandwidth, and frequency offset, which may be investigated to facilitate sharing between narrow-band and spread-spectrum mobile-satellite networks.

METHODOLOGY FOR EVALUATING INTERFERENCE FROM NARROW-BAND MOBILE-SATELLITE NETWORKS TO SPREAD-SPECTRUM DIRECT-SEQUENCE MOBILE-SATELLITE NETWORKS OPERATING WITH SPACE STATIONS IN LOW-EARTH ORBIT AT FREQUENCIES BELOW 1 GHz

ETSI TR 101 115-1997 数字蜂窝通信系统(第2+阶段).无线电频率(RF)要求的背景GSM 05.50(版本5.1.1)

Digital Cellular Telecommunication System (Phase 2+); Background for Radio Frequency (RF) Requirements GSM 05.50 Version 5.1.1

ITU-T X.225 AMD 2-1997 信息技术—开放系统互连—面向连接的会话协议:协议规范 修订2:嵌套的连接功能单元

In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Information Technology - Open Systems Interconnection - Connection-Oriented Session Protocol: Protocol Specification - Amendment 2: Nested Connections Funtional Unit - Series X:Data Networks and Open System Communication - Open System Interconnection - Co

ITU-T X.215 AMD 2-1997 信息技术-开放系统连接-部分服务定义:修正2:效率提高-X系列:数据网络和开放系统通信:开放系统连接

The Session service definition defined in ITU-T Rec. X.215 I ISO/IEC 8326 is enhanced to define an optional functional unit which permits additional, independent, nested session connections within an existing session connection. This enhancement will supp

Information Technology - Open Systems Interconnection - Session Service Definition - Amendment 2: Nested Connections Functional Unit - Series X: Data Networks and Open System Communication - Open Systems Interconnection - Service Definitions

ITU-T X.226 AMD 2-1997 信息技术—开放系统互连—面向连接的会话协议:协议规范 修订2:嵌套的连接功能单元

In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Information Technology - Open Systems Interconnection - Connection-Oriented Presentation Protocol: Protocol Specification - Amendment 2: Nested Connections Functional Unit - Series X: Data Networks and Open System Communication - Open Systems Interconnect

ITU-T X.216 AMD 2-1997 信息技信息技术—开放系统互连—表示业务定义. 修改件2:嵌套连接功能装置

The Presentation service definition defined in ITU-T Rec. X.216 I ISOAEC 8822 is enhanced to define an optional functional unit which permits additional, independent, nested presentation connections within an existing presentation connection.

Information Technology - Open Systems Interconnection - Presentation Service Definition - Amendment 2: Nested Connections Functional Unit - Series X: Data Networks and Open System Communication - Open System Interconnection - Service Definitions

ITU-T X.227 AMD 1-1996 信息处理系统—开放系统互连—联系控制服务元素协议规范-修改件1:延展性标记的合并 系列X

In this Recommendation, the expression Administration is used for conciseness to indicate both a telecommunication administration and a recognized private operating agency.

Information Technology - Open Systems Interconnection - Connection-Oriented Protocol for the Association Control Service Element: Protocol Specification - Amendment 1: Incorporation of Extensibility Markers - Series X: Data Networks and Open System Commun

ITU-T X.217 AMD 1-1996 信息技术—开放系统互连—联系控制业务元素的业务定义-修改件1:对用于无连接模式的鉴权机制的支持

In this Recommendation, the expression “Administration” is used for conciseness to indicate both a telecommunication administration and a recognized operating agency.

Information Technology - Open Systems Interconnection - Service Definition for the Association Control Service Element - Amendment 1: Support of Authentication Mechanisms for the Connectionless Mode - Series X: Data Networks and Open System Communication

ITU-R SM.1133 FRENCH-1995 广义服务的频谱利用

This Recommendation considers the technical requirements for the utilization of more broadly defined services. The relationship between radio services in terms of broader and narrower definitions is shown in Fig. 1. The objective of using broadly defined services is to increase the flexibility of allocations. The concept of using broadly defined services in this context does not necessitate the elimination of narrowly defined or subset services, but involves the use of the most broadly defined service possible, given the factors discussed below.

SPECTRUM UTILIZATION OF BROADLY DEFINED SERVICES

ITU-R SM.1133 SPANISH-1995 广义定义业务的频谱使用

The ITU Radiocommunication Assembly Considering a) that the Radio Regulations (RR) define over 40 different radio services; b) that, narrowly defined services can unnecessarily restrict flexibility and limit spectrum utilization; c) that the RR defines some radio services as subsets of others; d) that the factors with respect to the utilization of broadly or narrowly defined services need to be delineate

SPECTRUM UTILIZATION OF BROADLY DEFINED SERVICES

ITU-T X.215 ADD 1-1995 开放网络连接-部分层效率提高服务定义-数据网络和开放系统通信和连接-服务定义 研究组7 11页

The ITU-T (Telecommunication Standardization Sector) is a permanent organ of the International Telecommunication Union (ITU).

Open Systems Interconnection - Service Definition for Session Layer Efficiency Enhancements - Data Networks and Open System Communications Open Systems Interconnection - Service Definitions (Study Group 7) 11 pp

ITU-R QUESTION 206/1-1995 国家频谱管理和融资的经济策略

The ITU Radiocommunication Assembly considering a)that, in the spirit of Article 44 of the ITU Constitution, the radio-frequency spectrum in particular is considered as a common but finite resource which should be used efficiently; b)that, in accordance with the Radio Regulations, the radio-frequency spectrum's use is authorized by a competent authority in each ITU Member State;c)that the authorization and the supervision of its use may be a significant burden for the national frequency management system acting within an increasing liberalized environment.

Strategies for economic approaches to national spectrum management and their financing