TDD is a duplexing method where transmission and reception occur at different times on the same frequency band. It allows flexible allocation of uplink and downlink capacity based on traffic demands. TDD is commonly used [...]
SS7 is a set of telephony signaling protocols used to set up and tear down telephone calls in public switched telephone networks. It enables features like call forwarding, caller ID, and toll-free numbers.
SM-SR is a component in eSIM architecture that provides secure communication channels between subscription managers and eUICCs. It handles authentication, encryption, and routing of profile management commands.
SM-DS is a component in eSIM architecture that helps devices discover available profiles and the appropriate SM-DP+ to download them from. It acts as a directory service, routing profile download requests to the correct server.
SM-DP+ is the enhanced version of SM-DP used in modern eSIM deployments for consumer devices. It prepares, stores, and delivers operator profiles to eUICCs securely over the air. SM-DP+ supports more flexible profile management and [...]
SM-DP is a component in eSIM architecture that prepares and packages operator profiles for download to eUICCs. It creates encrypted profile packages containing subscription credentials and network settings. SM-DP was used in the original eSIM [...]
NR is the global standard for 5G wireless communication developed by 3GPP. It defines the radio access technology and air interface for 5G networks, supporting enhanced mobile broadband, ultra-reliable low-latency communications, and massive machine-type communications.
LPA is a software component on a device that manages the download and activation of eSIM profiles. It communicates with remote servers to retrieve and install operator profiles on the eUICC.
The eUICC-ID is a unique identifier assigned to an embedded universal integrated circuit card (eUICC). It is used to track and manage the eSIM remotely, enabling remote provisioning and profile management.
5G SA is a deployment mode where 5G operates independently with its own core network (5GC) and radio access network. It enables full 5G capabilities including ultra-low latency, network slicing, and enhanced services.