4G帧偏置配置规范

ML303 是中国移动最新推出的 LTE Cat.4 模块。ML303 支持 TD- LTE/FDD- LTE/WCDMA/TD- SCDMA/GSM 通信制式，采用 LCC+LGA 封装方式。   丰富的 Internet 协议、行业标准接口和功能，支持 Windows、Linux 和 Android 驱动。ML303 可广泛应用到 M2M 多个领域中，如车联网、电力、视频监控、工业路由等。

The book provides detailed coverage of the air-interface technologies and protocols that withstood the scrutiny of the highly sophisticated technology evaluation process typically used in the 3GPP physical layer working group.We describe why certain technology choices were made in the standard development process and how each of the technology components selected contributes to the overall system performance improvement.As such, the book serves as a valuable reference for system designers and researchers not directly involved in the standard development phase.

中兴物联ME3630（LCC）4G模组的驱动代码，由状态机配合拨号流程

simcom 4G模组soc二次开发，两路MQTT

simcom4G模组soc二次开发，两路MQTT

基于移远4G模块EC20的4G开发板原理图 展示了EC20的基本通讯应用的连接方法和必要的外围电路组成

这个是一款4G模块开发板，ML302模块开发板，里面包含电路原理图和开发资料等，帮助开发人员进行设计参考

STM32_SmartBus Realize data interaction between hardware and Alibaba Cloud platform through STM32, 4G, and MQTT protocols 通过STM32、4G和MQTT协议实现硬件与阿里云平台之间的数据交互 说明 我知道这个系统还存在很多缺陷，比如裸机开发，代码逻辑不够清晰，而且繁琐。而且MQTT质量低，容易丢包。还有一些硬件选材不够合适，造成资源浪费。 恳请各位大佬提出意见，甚至可以一起完善这个项目，谢谢！ I know that this system still has many flaws, such as bare metal development, the code logic is not clear enough, and cumbersome. Moreover,

4G室内分布系统建设难点解决方案研究