Voice over LTE

VoLTE Radio Resource and Quality of Service Class Identifier Voice over Long Term Evolution, Voice over LTE or with abbreviated version VoLTE. Typically the mobile operators are using CSFallback feature for voice calls in new deployed LTE networks which is READ MORE

LTE Radio Protocol Stack

On above image, we can see overview of LTE Protocol Stack. Each part of the stack has its own responsibility. Details for these parts will be described in related pages, now let’s to understand the concept of the protocol stack READ MORE

SIB7 in LTE

  System Information Block Type 7 or with abbreviated version SIB7 contains GERAN frequency group related information and relevant only for cell re-selection from LTE to GSM. The message includes frequency groups with specific re-selection parameters. SIB7 is transmitted from READ MORE

SIB6 in LTE

  System Information Block Type 6 or with abbreviated version SIB6 contains UTRAN frequency related information and relevant only for cell re-selection from LTE to WCDMA. The message includes frequencies with specific re-selection parameters. SIB6 is transmitted from the network READ MORE

SIB5 in LTE

  System Information Block Type 5 or with abbreviated version SIB5 contains EUTRAN frequency related information and relevant only for inter-frequency cell re-selection. The message includes frequencies with specific re-selection parameters as well as blacklisted cells. SIB5 is transmitted from READ MORE

SIB4 in LTE

  System Information Block Type 4 or with abbreviated version SIB4 contains neighboring cell related information and relevant only for intra-frequency cell re-selection. The message includes cells with specific re-selection parameters as well as blacklisted cells, Physical Cell Identities (PCI) READ MORE

SIB3 in LTE

  System Information Block Type 3 or with shortened version SIB3 contains common information for Intra-Frequency, Inter-Frequency and Inter-Technology cell re-selection parameters. But these parameter values are not applied in all re-selection scenarios. SIB3 is transmitted from the network to READ MORE

SIB1 in LTE

  After initial synchronization of UE with the network and obtaining the MIB, the UE starts to listen System Information Block Type 1 (SIB1) which is carrying cell access related information. SIB1 is transmitted through BCCH -> DL-SCH -> PDSCH READ MORE

Block Error Rate in LTE

  “Block Error Rate” or BLER is a measurement type of quality in telecommunication. Simple calculation of the measurement: BLER (in LTE) = Number of erroneous blocks / total number of received blocks The calculation is based on CRC (Cyclic READ MORE