Microwave photonics is an interdisciplinary area that studies the interaction between microwave and optical signals, for applications such as broadband wireless access networks, sensor networks, radar, satellite communications, instrumentation, and warfare systems. In the past few years, there has been an increasing effort in researching new microwave photonic techniques for
What is eHRPD ? An upgrade of existing HRPD (EV-DO) networks to allow EV-DO service providers to introduce SAE/EPC architecture elements to their existing packet core network. Includes both air interface and packet core network changes. Why eHRPD ? CDMA/EV-DO carriers transitioning towards LTE don’t want to do massive “forklift
Packets received by a layer are called Service Data Unit (SDU) while the packet output of a layer is referred to by Protocol Data Unit (PDU). Let’s see the flow of data from top to bottom: IP Layer submits PDCP SDUs (IP Packets) to the PDCP layer. PDCP layer does
Parameters Description Frequency range UMTS FDD bands and TDD bands defined in 36.101(v860) Table 5.5.1, given below Duplexing FDD, TDD, half-duplex FDD Channel coding Turbo code Mobility 350 km/h Channel Bandwidth (MHz) 1.4 3 5 10 15 20 Transmission Bandwidth Configuration NRB: (1 resource block = 180kHz in 1ms TTI
Iu PS over IP Throughput Degradation Troubleshooting Prob: The RNC Configuration for IU PS User plane is configured properly. The RNC is sending payload packets to the SGSN as can be checked (pmx packetdatarouter) but frequently does not get a reply back, as it is reported in the event: “CnNotRespondingToGTPEcho”.
A network run by one operator in one country is known as a Public Land Mobile Network (PLMN) and when a subscribed user uses his operator’s PLMN then it is said Home-PLMN but roaming allows users to move outside their home network and using the resources from other operator’s network.
Many MME pool areas, many S-GW service areas and lots of tracking areas together combines to form a LTE Network. The Network IDs Public Land Mobile Network Identity (PLMN-ID) which will have a three digit mobile country code (MCC) and a two or three digit mobile network code (MNC) via
BTS ID 1 (FSME + FTLB + FXDA1 + FRGP2) BTS name MGH4999 BTS location Mghira testbed BTS description 2+2+2, 20W BTS IP addresses: Subnet address 10.209.0.0 Subnet mask 255.255.255.248 / 29 TRS address 10.209.0.1 BTS address
A new technology built to send & receive satellite tv programmes via. single cable distribution technique. Huge amount of available bandwidth is required for satellite broadcast. This new technology allows simultaneous transmission of thousands of video- and audio programs into consumer homes. Requirement of an often complex installation of multiple