Latency Measurement for Apple Devices with DSDS Capability for MVNO Carrier Deployment
Author(s): Kiran Garde
Publication #: 2606047
Date of Publication: 14.05.2026
Country: United States
Pages: 1-10
Published In: Volume 12 Issue 3 May-2026
DOI: https://doi.org/10.62970/IJIRCT.v12.i3.2606047
Abstract
Modern smartphone devices support Dual SIM Dual Standby (DSDS), which allows multiple operator subscriptions to coexist on a single device while sharing a common radio hardware. This capability has become essential for Mobile Virtual Network Operator (MVNO) deployments that integrate nationwide coverage from a host Mobile Network Operator (MNO) with localized infrastructure operated by Multiple System Operators (MSOs) using shared spectrum such as the Citizens Broadband Radio Service (CBRS) band [1], [2]. The CBRS spectrum is mainly used for Data offload to reduce cost. In such hybrid deployments, any smartphone supporting DSDS mode can transition its primary data connectivity from the MNO eSIM to the MSO eSIM when entering MSO coverage areas. Although modern cellular systems support Always-On Packet Data Network (PDN) or Protocol Data Unit (PDU) sessions, which reduce session establishment overhead during mobility events [3], DSDS devices still experience service interruption due to radio resource switching and subscription activation constraints [4].
This paper presents a latency analysis framework for Apple devices operating in MVNO deployments that integrate host MNO networks with MSO private localized CBRS networks. In order to calculate latency assumption is made that Always-On PDN/PDU sessions are implemented to maintain uninterrupted data connectivity. This analysis is useful for comparing the device performance across different DSDS supporting models and different iOS versions to improve efficiency and performance of the devices.
The paper presents system architecture, signaling flows, latency component decomposition, and measurement methodology along with latency estimation tables. The proposed framework provides practical guidance for evaluating network performance in DSDS-enabled MVNO deployments using private 5G networks.
Keywords: DSDS, eSIM, MVNO, CBRS, Apple devices, handover latency, PDU session, mobile offload, subscription switching, 5G registration, PDU session, mobility latency, service interruption.
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