4G

共 189 篇文章
4G 相关的电子技术资料,包括技术文档、应用笔记、电路设计、代码示例等,共 189 篇文章,持续更新中。

5G底层核心技术专利现状分析

<p>5G 底层核心技术专利现状分析 无线通信技术从 2G 到 3G 是一个历史性的跨越,从单纯的语音通话和简单的短信数据传输, 跨入了无线互联网。 在 2009 年发放 3G 牌照的时候,产业界最希望找到的是应用无线宽带能力的杀手级应用。 当时最早的应用是把 3G 当做无线上网卡销售,例如中国电信的 CDMA2000 每月 300 小时不限流 量的 3G 上网卡。而通过 4 年多的产业实践,到了

RK3288 原厂核心板DDR3布线参考及硬件设计指南

<p><br/></p>&nbsp;&nbsp;核心板说明<p>(1)DDR模板:RK3288-LPDDR3P232SD6-V12-20140623HXS</p><p>(2)适用的平台:RK3288;</p><p>(3)支持的DDR类型:LPDDR3_2PCS*32BIT</p><p>(4)最大支持容量:4G(2PCS*32BIT);</p><p>(5)板层:6 Layer;</p><p>(6)贴

浅谈软件无线电技术及其在3G与4G通信系统中的应用讲解

<p>该文档为浅谈软件无线电技术及其在3G与4G通信系统中的应用讲解文档,是一份很不错的参考资料,具有较高参考价值,感兴趣的可以下载看看………………</p>

华为ME909s-821 LTE LGA模块硬件指南华为4G模块软件串口AT指令软硬件文档资料

<p>华为ME909s-821 LTE LGA模块硬件指南华为4G模块软件串口AT指令软硬件文档资料</p><p><br/></p><p><img src="/uploads/pic/da/7da/a329d61e69ca4b7d687727d4231287da-1.png" alt="华为ME909s-821 LTE LGA模块硬件指南华为4G模块软件串口AT指令软硬件文档资料" title="

基于瑞萨 EDLC 的4G 模块智能电表的电源解决方案

<p>基于瑞萨 EDLC 的4G 模块智能电表的电源解决方案基于瑞萨 EDLC 的4G 模块智能电表的电源解决方案</p>

广和通物联网产品手册中文

<p>广和通是中国首家A股上市的物联网无线模组企业。致力于将可靠、便捷、安全、智能的无线通信解决方案普及至每一个物联网应用场景,丰富智慧生活。广和通提供创新的5G、4G、3G、2G、NB-IoT、LTE-M、智能、车规级无线通信模组及物联网应用一站式无线通信解决方案&nbsp;。广和通拥有全球1000多名员工,产品及服务遍及100多个国家。</p>

USR-DR15X 系列产品说明书,免插卡 蓝牙配置 超小体积导轨式4G DTU

<p>USR-15X系列产品说明书</p><p style="max-inline-size: 100%; margin-top: 0px; margin-bottom: 0px; padding: 0px; clear: both; min-height: 1em; cursor: text; font-size: 17px; letter-spacing: 2px; caret-color:

4G中软件无线电技术的应用简介

<p>该文档为4G中软件无线电技术的应用简介文档,是一份很不错的参考资料,具有较高参考价值,感兴趣的可以下载看看………………</p>

74HC595 A4950 MAX3232 ULN2003AD STM32F207VCT6 AD集成封装库

<p>74HC595 A4950 MAX3232 ULN2003AD&nbsp; STM32F207VCT6 AD集成封装库,原理图库器件型号列表:</p><p>Library Component Count : 53</p><p><br/></p><p>Name&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; Description<

SIM7600C 全网通4G模块软硬件设计技术资料包

<p>SIM7600C 全网通4G模块软硬件设计技术资料包</p><p>linux驱动</p><p>SIM7500_SIM7600 Series_AT Command Manual_V1.01.pdf</p><p>sim7600C-CE.zip</p><p>SIM7600CE_SIM7600C 硬件设计手册_V1.01.pdf</p><p>SIM7600CE_SIM7600C-PCIE_Hardw

基于4G LTE的应急通信网络

<p>该文档为基于4G LTE的应急通信网络讲解资料,讲解的还不错,感兴趣的可以下载看看…………………………</p>

5G商用初期高校场景4G流量预测及建设方案研究

<span style="font-family:Verdana, Geneva, sans-serif;font-size:11px;white-space:normal;background-color:#F5F5F5;">5G商用初期高校场景4G流量预测及建设方案研究</span>

5G商用初期高校场景4G流量预测及建设方案研究

<span style="font-family:Verdana, Geneva, sans-serif;font-size:11px;white-space:normal;background-color:#F5F5F5;">5G商用初期高校场景4G流量预测及建设方案研究</span>

WLANs+WPANs+towards+4G+Wireless

This book paves the path toward fourth generation (4G) mobile communica-<br /> tion by introducing mobility in heterogeneous IP networks with both third<br /> generation (3G) and wireless local area n

Wireless Communications & Networking

During the past three decades, the world has seen signifi cant changes in the telecom-<br /> munications industry. There has been rapid growth in wireless communications, as<br /> seen by large expans

Transmission Techniques for 4G Systems

Fourth Generation (4G) wireless communication systems aim to allow peak data<br /> rates in the range of 1 Gbps for nomadic access and 100 Mbps for vehicular mobil-<br /> ity. 4G aims to support curre

RFIC+Design+for+Cognitive+Radio+Systems

Cognitive radios have become a vital solution that allows sharing of the scarce<br /> frequency spectrum available for wireless systems. It has been demonstrated<br /> that it can be used for future w

Multicarrier+Techniques+for+4G

At recent major international conferences on wireless communications,<br /> there have been several sessions on beyond third generation (3G) or fourth<br /> generation(4G)mobilecommunicationssystems,w

Mobile WiMAX Toward Broadband Wireless

Wireless metropolitan area networks (WirelessMANs) is emerging as a promising<br /> broadband wireless access (BWA) technology to provide high-speed, high bandwidth<br /> efficiency and high-capacity

Mobile Multimedia Communications Concepts

Mobile multimedia communication is increasingly in demand because of the basic need to communi-<br /> cate at any time, anywhere, using any technology. In addition, to voice communication, people have