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Calculation for Body Loss and Feeder Loss for LTE

Calculation for Body Loss and Feeder Loss for LTE When we RF Planning in LTE then Losses are one of most important factor to take in calculation for predication coverage. Below you find how Body loss and Feeder loss calculation for LTE. Body Loss : Body loss indicates the loss generated due to signal blocking … Read more

S1 interface – A Single Interface between LTE RAN and evolved packet core

S1 interface – A Single Interface between LTE RAN and evolved packet core The S1 interface is the interface between the LTE RAN and evolved packet core. S1 interface protocol stack is described in Figure. S1 performs the following functions: S1-UP (user plane) S1-CP (control plane) LTE S1-UP (user plane) The S1 user plane external … Read more

Basic of GSM Um,Abis and A Interface

Basic of GSM Um,Abis and A Interface GSM (Um) Air Interface This is the interface between the GSM mobile station and the GSM Base station. The Air interface (RF Interface) uses the Time Division Multiple Access (TDMA) technique to transmit and receive traffic and signaling information between the GSM BTS and GSM Mobile Station. The … Read more

Basic Work of MSC (Mobile Switching Centre)

Exchange where calls are established, maintained and released Database for all subscribers and their associated features. Communicates with the BSCs on the A interface and with PSTN on fixed line. MSC is weighted on the number of subscribers it can support. For example, an MSC of 1 lakh subscribers means one MSC is enough till … Read more

Interference Limited MIMO Systems for Wimax

The third assumption—that the background noise is Gaussian and uncorrelated with the transmissions—is especially suspect in a cellular MIMO system. All well-designed cellular systems are by nature interference limited: If they were not, it would be possible to increase the spectral efficiency by lowering the frequency reuse or increasing the average loading per cell. In the … Read more

WCDMA Iu PS Interface

Here I write about Iu PS Interface in WCDMA. WCDMA Protocol Structure for Iu PS The Iu PS protocol structure is represented in below image. Again, a common ATM transport is applied for both User and Control Plane. Also the physical layer is as specified for wcdma Iu CS. WCDMA Iu PS Control Plane Protocol … Read more