LTE call flow explained sessions rooted across the network
Interworking with LTE - NSA / ENDC in Detail. This is about one of NR deployment options where LTE work as a master and NR work as a secondary cell (In 3GPP terms, this is about EN-DC (EUTRA-NR Dual Connectivity) / MR-DC with EPC as described in 37.340). In this configuration, UE get connected to LTE network first and then connected to NR via RRC Connection Reconfiguration process.
Call Control Call Flows
5G mobile broadband services will be available to users in a primarily 4G network via mobile terminals that support dual connectivity to 4G LTE and 5G NR base stations at the same time. To enable.
Intelligent Wireless Access Gateway Configuration Guide Call Flows for Simple IP Users [Cisco
An EN-DC enabled UE first registers for service with the 4G EPC. The UE also starts reporting measurements on 5G frequencies. If the signal quality for the UE will support a 5G service, the LTE eNB communicates with the 5G-NR gNB to assign resources for a 5G bearer.
How UE will know which 5G cell to attach in ENDC NSA
ENDC, or E-UTRAN New Radio - Dual Connectivity, is a Non-Standalone (NSA) feature that makes it possible for mobile devices to access both 5G and 4G LTE networks at the same time, which allows carriers to tap into the benefits of both network technologies simultaneously.
5G NR NSA ENDC Dual Connectivity Signalling end to end attach Call flow
Dual connectivity, otherwise known as ENDC (E-UTRAN New Radio - Dual Connectivity), is the technology that enables a 4G and 5G connection to occur at the same time. In the past, a change in network demand or availability typically resulted in a clunky transition between 3G and 4G. The device was forced to choose between one or the other.
ENDC Success Rate from UE point or Layer3 messages 5G NR Forum
Call flows 5G-NR Non Standalone Access Flow (EN-DC) LTE support for 5G dual connectivity will enable 4G network operators to introduce 5G services with a minimal upgrade to support 5G data plane. This is achieved with the support for 4G eNB and 5G gNB dual connectivity (EN-DC). 5G-NR Standalone Access Registration Flow
5G SA Inter gNB Handover Xn Handover 5G Call Flow
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The most important benefit of ENDC is that the added bandwidth that comes from combining 5G with 4G LTE allows carriers to boost 5G availability, improve reliability, and provide faster speeds. As one practical example of the benefits of ENDC, we tested T-Mobile's NSA and SA 5G networks, each of which used a median of 15 MHz bandwidth by itself.
NSA ENDC Call Flow 1672980228 LTE5GNR UE LTE eNodeB 5GNR gNodeB 4G Core Network UE MNeNB SN
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Hi All,Please welcome to my channel techlteworld .ENDC -Dual Connectivity (EN-DC) which enables 5G services and 4G network.UEs supporting EN-DC can connect s.
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This video explains ENDC call flow:SN (Secondary Node) Addition Procedure in NSA.
3G UMTS originating call flow EventHelix Medium
The eNodeB sends a Secondary Node Addition Request to the gNodeB. The message carries the RRC and Radio Bearer configuration. UE capabilities and security information are also included in the message. The network indicates whether the UE shall use either KeNB (master node key) or S-KgNB (secondary node key) for the 5G.
Effective Call Flows the Key to Customer Success IR
Note: To have sound understanding of 5G call flows and signaling, it is better to have a bit of background that you can achieve in my old article/video - 5G Architecture - A summary of 5G Network Deployment Options. A LTE eNB looks for 5G capable mobiles or handsets and as soon as it finds a 5G capable mobile in its coverage, it tries to add the 5G leg for it.
5G NR NSA ENDC Dual Connectivity Signalling end to end attach Call flow
The endc call flow describes the sequence of signaling messages exchanged between different network entities to establish, maintain, and terminate an endc connection. Here's a simplified technical explanation of the endc call flow: Initial Connection to LTE (e.g., LTE eNodeB)
5G ENDC and 5G SA Architecture and Data Flow 5G NR Forum
A simplified call processing (Signaling Flow) of SA Initial Attach process with focus on OTA (Over The Air) message is illustrated as below. If you want to get more detailed flow including the signaling flow in core network as well, For corenetwork side signaling, refer to ref [2] from event Helix which is very nicely written sequence diagram.
5G NR NSA ENDC Dual Connectivity Signalling end to end attach Call flow
This video explains the ENDC Call Flow.Secondary Node (SN) AdditionNSA Call Flow