VoLTE全称为Voice over LTE,以IMS核心网络构架为基础,LTE网络为数据传输通道的LTE语音解决方案。无需2G/3G网辅助,可以将音视频业务承载于LTE网络上,实现数据与语音业务在同一网络下的承载。本文给出了VoLTE无线侧的关键技术,以及这些...VoLTE全称为Voice over LTE,以IMS核心网络构架为基础,LTE网络为数据传输通道的LTE语音解决方案。无需2G/3G网辅助,可以将音视频业务承载于LTE网络上,实现数据与语音业务在同一网络下的承载。本文给出了VoLTE无线侧的关键技术,以及这些关键技术对VoLTE的语音质量的影响。展开更多
A low-power environmental monitoring system based on WSN technology is proposed to effectively monitor the environmental status and ensure the healthy growth of greenhouse crops in the greenhouse. The system performs ...A low-power environmental monitoring system based on WSN technology is proposed to effectively monitor the environmental status and ensure the healthy growth of greenhouse crops in the greenhouse. The system performs dynamic mon- itoring on the environmental data of temperature, humidity, illumination, soil tempera- ture and humidity of the greenhouse, and it reduces the energy consumption by us- ing solar energy and lithium battery as the power supply mode and dynamic power management algorithm combined with improved routing protocol. Stable and reliable, the system could effectively monitor the key environmental factors in the green- house, making it of certain promotion value.展开更多
文摘VoLTE全称为Voice over LTE,以IMS核心网络构架为基础,LTE网络为数据传输通道的LTE语音解决方案。无需2G/3G网辅助,可以将音视频业务承载于LTE网络上,实现数据与语音业务在同一网络下的承载。本文给出了VoLTE无线侧的关键技术,以及这些关键技术对VoLTE的语音质量的影响。
基金Supported by the Fund for Independent Innovation of Agricultural Sciences in Jiangsu Province(CX(14)2108&CX(13)5066)~~
文摘A low-power environmental monitoring system based on WSN technology is proposed to effectively monitor the environmental status and ensure the healthy growth of greenhouse crops in the greenhouse. The system performs dynamic mon- itoring on the environmental data of temperature, humidity, illumination, soil tempera- ture and humidity of the greenhouse, and it reduces the energy consumption by us- ing solar energy and lithium battery as the power supply mode and dynamic power management algorithm combined with improved routing protocol. Stable and reliable, the system could effectively monitor the key environmental factors in the green- house, making it of certain promotion value.