空中接口

无线资源管理是对移动通信系统的空中接口资源的规划和调度，希望在有限的无线资源及保证一定的规划覆盖和服务质量要求的情况下，接入尽可能多的用户。

Radio Resource Management ( RRM ) is the planning and scheduling for the air interface resources of the mobile communication system . It hopes to access as many subscribers as possible with limited radio resource as well as a certain planning coverage and service quality .

ISO/IEC的RFID空中接口标准比较分析

Compare and Analysis of RFID Air Interface Standards of ISO / IEC

超高频RFID空中接口协议认证机制的研究

Research on Authentication Mechanism of UHF RFID Air Interface Protocol

软件仿真是RFID空中接口协议分析评估的有效方法。

Software simulation is an effective method for evaluating RFID air-interface protocol .

3G系统空中接口安全机制及国内应用问题研究

Study of Security Mechanism on 3G Air-interface and Its Application in China

码分多址（CDMA）技术和公用空中接口综述

An Overview of CDMA Technology and the Common Air Interface

WCDMA的空中接口及其特征

Introduction to Air Interface and the Specification of WCDMA

数字调制解调技术是3G移动通信系统中空中接口标准的重要组成部分。

Digital modulation and demodulation techniques are important parts of air interface standards in 3G mobile communication systems .

重点研究PHS空中接口技术的误比特率（BER）性能。

This paper study the bit error performance of PHS air interface .

WiMAX空中接口技术的研究与仿真实现

The WiMAX Space Connector Engineering 's Research and the Simulation Realize

TD-SCDMA系统空中接口容量研究

Study on air interface capacity in TD-SCDMA system

WCDMA空中接口RLC层的AM传输方式关键技术的研究

Key Techniques of the AM Mode for the RLC Layer in WCDMA Systems

TD-SCDMA空中接口协议的研究及其测试例实现

The Research on Protocol of Air Interface in TD-SCDMA and the Implement of the Test Cases

TETRA系统空中接口加密的研究

Study on Encryption Techniques of Air Interface of TETRA System

TETRA空中接口第二层协议的分析与实现

Analysis and implementation of TETRA air interface layer 2 protocols

LTE空中接口协议结构及RRC层研究

Research of radio access protocol structure and RRC layer in LTE

射频优化是通过调整WCDMA空中接口参数，提高网络的各方面性能，确保网络资源的有效利用。

RF optimization adjusts some air interface parameters to achieve WCDMA network performance upgrade , efficiently utilize network resource .

LTE，WiMax等主流通信标准都把带宽可扩展性作为其空中接口的必备要素。

The dominant standards such as LTE and WiMax take the bandwidth scalability as their mandatory element .

LTE在系统设计过程中采用了OFDM、多天线（MIMO）、扁平化架构、简化的空中接口等先进的无线通信技术。

It adopts such a lot of advanced communication technology as OFDM , MIMO , flat network architecture , air interface simplicity .

TETRA空中接口协议一致性测试的研究

TETRA Air Interface Protocol Conformance Test Research

基于CDMA的IMT-2000空中接口

IMT-2000 Air Interfaces Based on CDMA

B3G空中接口技术分析&MIMO信道测量

Analysis of Aired Interface Technique in B3G Mobile Communications : MIMO Channel Sounding

EGPRS中采用冗余递增技术，通过空中接口（RF）实现最大效率。

Incremental Redundancy is included in EGPRS to achieve maximum efficiency over the air interface ( RF ) .

作为未来无线通信系统空中接口技术的核心组成部分，配置多个发射天线与接收天线的MIMO技术和空时编码技术受到越来越多的重视。

As the key components of the air interface of the future wireless communications system , MIMO and space-time coding have attracted more and more attention of researchers .

根据不同的空中接口标准，SR系统可以减少配置无线通信系统的问题。

The SR system can be applied to reduce problems that come forth in configuring the wireless communication system in accordance with different standard for aerial interfaces .

定义了一种无线ATM空中接口信元格式，设计了无线ATM物理层中传输会聚子层信元保护域。

A kind of wireless ATM air interface cell format was defined , and a cell protection field at transmission convergence sub layer of wireless physical layer was designed .

介绍了移动IP技术原理，非同质网络间数据传输控制的特点，移动通信空中接口宽带码分多址及无线局域网的技术特性和发展，并分析了当前在这些领域存在的问题。

The paper introduced theory of mobile IP , Characteristics of control of data transporting between isomerous networks , technology and development of WCDMA and WLAN , and analyzed the existing problems in all of these area .

LTE系统空中接口物理层引入了很多新技术，有：OFDM技术、多天线技术、TDD/FDD帧结构等。

There are many new technologies are introduced to the physical layer of LTE air interface , including OFDM , multi-antenna technology and TDD / FDD frame structure .

全IP移动通信网是将各种无线空中接口标准和接入手段的语音、视频、数据、信令通过统一的全IP分组交换平台进行路由和传输。

All-IP mobile communication network makes various wireless air interface standards and voice 、 video 、 data and signaling of the means to access to be routed and transmitted through the harmonization of the all-IP packet switching platform .

能支持功能强大的移动台脱网直通（DMO）方式，可实现鉴权、空中接口加密和端对端加密；

The TETRA system also supports powerful DMO mode and enables authentication , air interface encryption and end-to-end encryption .