Implementasi CSFallback International Roaming Pada Jaringan LTE

Husein Mukdien, Irmayani (2023) Implementasi CSFallback International Roaming Pada Jaringan LTE. Sinusoida, 25 (1). pp. 1-8. ISSN p-ISSN 1411-4593, e-ISSN 2722-02229

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International roaming is a feature of cellular networks, allowing a customer of one home country operator to use the network of another visited country operator. Location update and call roaming service are most important thing on international roaming service. When a mobile operator migrates its network from the 2nd Generation (2G) system to Long Term Evolution (LTE), both 2G and LTE will co-exist for a period of time. Since the 2G Circuit-Switched (CS) voice mechanism is more mature and available than that for LTE Voice over Internet Protocol (VoIP), the operator may consider CS fallback as a solution to provide reliable voice calls. According to the 3rd Generation Partnership Project (3GPP) CS fallback procedure, when a mobile user in the LTE network has an incoming or an outgoing call, the User Equipment (UE) falls back from LTE to 2G network. When the call is complete and released, the UE immediately returns to LTE. LUSR (Location Update Success Ratio) measurement results of 48% and CCR (Call Completion Rate) of 66% are below the standard KPI value for Indonesian operators, namely 80%. The LUSR and CCR values obtained are categorized as Poor or Bad. However, this is still permitted because the measurement is carried out only by taking one day's data from the operator number of the country of origin implemented on the Indonesian operator's LTE network. And even though LUSR and CCR are below standard, these operators are not priority operators in their home countries working with Indonesian operators.

Item Type: Article
Subjects: T Technology > T Technology (General)
Depositing User: Irmayani Husein Mukdien
Date Deposited: 18 Jul 2023 03:04
Last Modified: 18 Jul 2023 03:04

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