Handover Process in LTE
The source eNB issues a HANDOVER REQUEST message to the target eNB passing the necessary information to prepare the HO on target side (UE X2 signaling context reference at source…
What is EPS Bearer in LTE?
Eps bearer LTE EPS is a connection-oriented transmission network and, as such, it requires the establishment of a “virtual” connection between two endpoints (e.g. a UE and a PDN-GW) This…
What is FADING, Its Type and Effect in RF design
What is Fading: – Fading is most important thing when you design any RF Design lets understand what is fading and how its effect. The communication between the base station…
Slow and Fast Frequency Hopping in GSM
Frequency hopping can be briefly defined as a sequential change of carrier frequency on the radio link between the mobile and the base station. In GSM, one carrier frequency is…
What is BSIC and its use in GSM
BSIC=NCC+BCC In GSM system, each BTS is allocated with a color code, which is called BSIC. MS can identify two cells with the same BCCH by the help of BSIC….
How Downlink Control Information or DCI in LTE?
Downlink Control Information or DCI in LTE The PDCCH carries Downlink Control Information or DCI to indicate the resource assignment in UL or DL for one RNTI. A DCI can…
Packet Data Convergence Protocol (PDCP) in LTE
What is pdcp in lte: – PDCP means Packet Data Convergence Protocol means it convert data at protocol level let’s check its function at user plane and control plane in details….
Timing Advance in LTE
Timing advance lte what is timing advance in lte: -The eNB measures the required timing advance based on the received UE signal arrival time. It commands the UE to adjust…
Resource Block & Physical Resource Block in LTE
What is Resource block in lte? :- A resource block is the smallest unit of resources which allocated to a user. The resource block is 1 slot long in time…
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)…