Advanced Wireless Services

The Advanced Wireless Services (AWS) is in the 1710 – 1755 and 2110 – 2155 MHz spectrum range. The most common use of AWS spectrum is fixed and mobile voice and data services, including cell phone, text messaging, and Internet. The AWS band uses microwave frequencies in two segments: from …

SAE-LTE Interfaces

If we refer to the figure we can see the following interfaces in the SAE- LTE architecture. A basic description of all the interfaces are provided in this post. Refer to  TS – 23401 for more details. S1-MME : Interface between the control plane protocol between E-UTRAN and MME. S1-U …

SGW – Serving Gateway

The SGW routes and forwards user data packets, while also acting as the mobility anchor for the user plane during inter-eNB handovers and as the anchor for mobility between LTE and other 3GPP technologies (terminating S4 interface and relaying the traffic between 2G/3G systems and PDN GW). For idle  state …