T-mobile Usa, Inc.

Rahul Amin

Rex Maristela

Joel Arends

Fadi El Banna

Sheraz Dar

Zakir Hussain Syed

Tharunika Sridhar

Muhilan Vamadevan

Tingchun Kang

Henry Barrion

John Tappin

Samih Shahin

Senad Mrndic

Monica Baranwal

Shubham Mehta

An improved telecommunications network that can reduce the network load on a rich communication services (RCS) server and/or local routers that implement 1-to-N and/or M-to-N services is described herein. In particular, the improved telecommunications network may include an improved RCS server that can route secure multicast messages instead of and/or in addition to unicast messages. For example, the improved RCS server can create a multicast group for a group of UEs in response to a request from a UE to create a group of UEs. Creation of the multicast group may include creating a shared multicast group key (SMGK) for the multicast group and/or selecting a security algorithm for the multicast group. The improved RCS server can then distribute the SMGK and/or the selected security algorithm to the UEs such that the UEs can use the SMGK and/or the selected security algorithm to encrypt and/or decrypt messages.

Secure rich communication services multicast system

An improved telecommunications network that can reduce the network load on a rich communication services (RCS) server and/or local routers that implement 1-to-N and/or M-to-N services is described herein. In particular, the improved telecommunications network may include an improved RCS server that can route multicast messages instead of and/or in addition to unicast messages. For example, the improved RCS server can create a multicast group for a group of UEs in response to a request from a UE to create a group of UEs. Creation of the multicast group may include assigning a group Internet protocol (IP) address to the multicast group. The improved RCS server can then determine which UEs in the multicast group are capable of sending and/or receiving multicast messages, and send multicast messages instead of unicast messages to these UEs.

Rich communication services multicast system

Systems and methods are described herein for remotely and dynamically injecting or installing routes into an Internet Protocol (IP) network. In some embodiments, the systems and methods provide a route injection server as a peer or neighbor node with an IP network. The systems and methods then utilize the route injection server (e.g., remote and dynamic route injection server, or RDRIS) to advertise IP routes to other nodes within the IP network. For example, the RDRIS may send UPDATE messages to other nodes within an IP network, such as via the Border Gateway Protocol (BGP) in order to advertise the IP routes to the other nodes of the IP network.

Remotely and dynamically injecting routes into an IP network

Systems and methods for establishing routing information between software containers or other virtualized environments within a network, and providing inter-container routing between the software services operating on the network, are disclosed herein. The system utilizes an existing routing protocol such as Open Shortest Path First (OSPF) and establishes an overlay network that provides end-to-end connectivity between services of a customer operating in an Infrastructure as a Service (IaaS) network, while maintaining isolation from the traffic of other customers of the IaaS network. The system uses OSPF to learn aspects of the routes between containers in the network, and further builds a customer-specific overlay network based on IP-to-IP encapsulation of the OSPF messages.

Container routing algorithm using OSPF

An improved core network that can monitor micro-level issues, identify specific services of specific nodes that may be causing an outage, and perform targeted node failovers in a manner that does not cause unnecessary disruptions in service is described herein. For example, the improved core network can include a failover and isolation server (FIS) system. The FIS system can obtain service-specific KPIs from the various nodes in the core network. The FIS can then compare the obtained KPI values of the respective service with corresponding threshold values. If any KPI value exceeds a corresponding threshold value, the FIS may preliminarily determine that the service of the node associated with the KPI value is responsible for a service outage. The FIS can initiate a failover operation, which causes the node to re-route any received requests corresponding to the service potentially responsible for the service outage to a redundant node.

Micro-level network node failover system

The disclosed method tests performance of a wireless telecommunication network. The method obtains from the network a network trace including packets exchanged among devices associated with the network. The method identifies packets within the network trace that match properties specified by the first and second tables, and obtains a call flow by chronologically mapping the identified packets, using the timestamps of the packets. The method determines whether a packet associated with the call flow matches the properties specified by the third table by comparing an IE value contained in the packet to the IE value included in the third table. Based on the determining, the method creates a call flow validation results report indicating whether the call flow satisfied the properties specified in the multiple tables. The call flow validation results report can indicate whether the network has passed the test, and/or whether the wireless network has any problematic components.

Automating 5G core network testing

Systems, devices, and techniques described herein are directed to a virtualized networking topology decoupling networking objects from an underlying physical topology. A virtualized networking topology can include networking application objects implementing various networking specifications independent of a networking node or a physical topology of the network to render services to the network. A network forwarding module can render services such as routing and forwarding of packets to the networking application objects. A topology module can probe a network to develop a physical layout of the network by determining connections among ports. And a mapping module can intelligently map networking application objects with the physical topology and various forwarding and routing protocols to build the virtualized networking topology. Networking application objects can be implemented on various networking nodes and located independent of a physical topology of the network, while forwarding and control planes can be updated automatically for directing network traffic.

Virtualized networking application and infrastructure

Disclosed is an architecture that distributes session control logic across multiple points of a telecommunications network. Also disclosed are techniques and systems using Internet Protocol (IP)-based routing to establish communication sessions. A user equipment (UE) may receive user input to initiate a communication session, derive a destination IP address, generate a session request having at least the destination IP address, and send the session request a server. The server may receive the session request from the UE, replace the destination IP address in the session request with an IP address of an endpoint device to generate a modified session request, and route the modified session request to the endpoint device based at least in part on the IP address of the endpoint device.

Session control logic with internet protocol (IP)-based routing

Aspects of the present disclosure include techniques for dynamically exchanging session initiation protocol (SIP) configurations between a SIP node and a neighbor SIP node. For example, a SIP node may send a first request to the neighbor SIP node to subscribe to neighbor SIP node configurations. The SIP node may then receive a second request from the neighbor SIP node for the neighbor SIP node to subscribe to SIP node configurations. The SIP node then sends the SIP node configurations from the SIP node to the neighbor SIP node and receives the neighbor SIP node configurations from the neighbor SIP node. In some aspects, the SIP node may store the neighbor SIP node configurations to a data store for formatting subsequent SIP messages exchanged between the SIP node and the neighbor SIP node.

Growing community of inventors

Issaquah, WA, United States of America

Rahul Amin