E-GPRS uses 200 kHz radio channels,which are the same as the current GSM channel widths.It reuses the same concepts and is based on exactly the same architecture as GPRS.The introduction of EGPRS has no impact on the ...E-GPRS uses 200 kHz radio channels,which are the same as the current GSM channel widths.It reuses the same concepts and is based on exactly the same architecture as GPRS.The introduction of EGPRS has no impact on the GPRS core network.E-GPRS is designed to improve spectral efficiency through efficient link utilization with GMSK and 8-PSK modulation schemes,which can be alternated on the same radio slot according to radio channel conditions. With new modulation,E-GPRS increases the radio interface data throughput in average three-fold compared to GPRS.Discussed in this paper is the performance test between E-GPRS and GPRS under multiuser environments,and the optimization analysis of the E-GPRS network.展开更多
为了解决海上手机用户的通信和陆地基站定位精度不高的问题,实现移动通信网络从陆地到海上的无缝连接,并为海事救捞部门提供较高精度海上辅助定位手段,通过Abis over IP技术实现船载VSAT卫星通信系统承载GSM网络,利用船载基站和测向机...为了解决海上手机用户的通信和陆地基站定位精度不高的问题,实现移动通信网络从陆地到海上的无缝连接,并为海事救捞部门提供较高精度海上辅助定位手段,通过Abis over IP技术实现船载VSAT卫星通信系统承载GSM网络,利用船载基站和测向机的集成实现较高精度的AOA/TA手机定位,该系统已经成功应用在北海救113号搜救船舶上.展开更多
文摘E-GPRS uses 200 kHz radio channels,which are the same as the current GSM channel widths.It reuses the same concepts and is based on exactly the same architecture as GPRS.The introduction of EGPRS has no impact on the GPRS core network.E-GPRS is designed to improve spectral efficiency through efficient link utilization with GMSK and 8-PSK modulation schemes,which can be alternated on the same radio slot according to radio channel conditions. With new modulation,E-GPRS increases the radio interface data throughput in average three-fold compared to GPRS.Discussed in this paper is the performance test between E-GPRS and GPRS under multiuser environments,and the optimization analysis of the E-GPRS network.
文摘为了解决海上手机用户的通信和陆地基站定位精度不高的问题,实现移动通信网络从陆地到海上的无缝连接,并为海事救捞部门提供较高精度海上辅助定位手段,通过Abis over IP技术实现船载VSAT卫星通信系统承载GSM网络,利用船载基站和测向机的集成实现较高精度的AOA/TA手机定位,该系统已经成功应用在北海救113号搜救船舶上.
