Prashant P Datar

US Patent:

20210227357, Jul 22, 2021

Filed:

Feb 17, 2021

Appl. No.:

17/177851

Inventors:

- Tampa FL, US
Brian Beach - Tampa FL, US
Huiyue Xu - Tampa FL, US
Prashant Datar - Tampa FL, US

International Classification:

H04W 4/14
H04W 8/02
H04W 76/12
H04L 29/12
H04W 12/06

Abstract:

This invention is a system and method for implementing a VoLTE and circuit switched voice and SMS interworking function to provide voice and SMS service to roaming mobile devices at visiting network based on VoLTE roaming and ‘SMS over SGs’ towards VPLMN, and circuit-switched voice and SMS towards HPLMN. The interworking function enables and redirects IMS traffic at VPLMN towards a hosted IMS core with voice connectivity to PSTN via MGCF and MGW. The interworking function also performs circuit-switched location-update registration at HLR at HPLMN for receiving mobile-terminated voice calls and SMS.

US Patent:

20210051741, Feb 18, 2021

Filed:

Oct 30, 2020

Appl. No.:

17/085681

Inventors:

- Tampa FL, US
Huiyue Xu - Tampa FL, US
Prashant Datar - Tampa FL, US
Ravi Tandon - Sandweiler, LU
Rakesh Mehta - Tampa FL, US

International Classification:

H04W 76/12
H04W 40/20
H04W 40/12
H04W 8/02

Abstract:

A system and method for routing of 5G mobile data traffic along a routing path in an Internetwork Packet Exchange (IPX) network having requisite Quality of Service (QoS). A proxy is deployed in the IPX network to intercept Session Create request and response messages exchanges between the home network and the visited network. The routing platform extracts Single-Network Slice Selection Assistance Information (S-NSSAI) attribute and uses this attribute and the geographic locations of the visited network and the home network to select a routing path in the IPX network having requisite QoS for the network slice use case. The routing platform uses layer-3 routing technique to anchor User Plane Function (UPF) Proxies deployed at different routing paths in the IPX network. Alternately, the routing platform uses layer-2 routing technique, with Software-Defined Networking (SDN) controller and SDN-switches to route traffic via the selected routing path in the IPX network.

US Patent:

20200329516, Oct 15, 2020

Filed:

Apr 13, 2020

Appl. No.:

16/847079

Inventors:

- Tampa FL, US
Huiyue Xu - Tampa FL, US
Prashant Datar - Tampa FL, US
Ravi Tandon - Sandweiler, LU
Rakesh Mehta - Tampa FL, US

International Classification:

H04W 76/12
H04W 8/02
H04W 40/12
H04W 40/20

Abstract:

A system and method for routing of 5G mobile data traffic along a routing path in an Internetwork Packet Exchange (IPX) network having requisite Quality of Service (QoS). A proxy is deployed in the IPX network to intercept Session Create request and response messages exchanges between the home network and the visited network. The routing platform extracts Single-Network Slice Selection Assistance Information (S-NSSAI) attribute and uses this attribute and the geographic locations of the visited network and the home network to select a routing path in the IPX network having requisite QoS for the network slice use case. The routing platform uses layer-3 routing technique to anchor User Plane Function (UPF) Proxies deployed at different routing paths in the IPX network. Alternately, the routing platform uses layer-2 routing technique, with Software-Defined Networking (SDN) controller and SDN-switches to route traffic via the selected routing path in the IPX network.

US Patent:

20200187060, Jun 11, 2020

Filed:

Nov 27, 2019

Appl. No.:

16/698199

Inventors:

- Tampa FL, US
David Zhang - Tampa FL, US
Huiyue Xu - Tampa FL, US
Prashant Datar - Tampa FL, US
Ravi Tandon - Sandweiler, LU

International Classification:

H04W 36/00
H04W 76/12
H04W 8/04
H04W 76/11
H04W 8/08
H04W 64/00
H04W 88/16
H04L 29/12

Abstract:

A routing platform for routing 4G and 5G mobile data traffic in a mobile core networks implementing Option-3 of 5G Non-Standalone deployment. The routing platform captures S6a Diameter messages sent between a Mobility Management Entity (MME) and a Home Subscriber Server (HSS) and examines the captured messages to determine whether a user equipment (UE) is configured for a 5G data connection. The routing platform intercepts a GTP Create-Session-Request message sent from a Serving Gateway (SGW) and determines whether the GTP message is associated with the UE previously determined to be configured for a 5G data connection. If the GTP message is associated with the UE configured for a 5G data connection, the GTP message is either sent to a dedicated 5G Packet Network Data Gateway (PGW) or the GTP message is modified so that a single PGW handling both 4G and 5G traffic can establish a 5G session for the UE.

US Patent:

20190222550, Jul 18, 2019

Filed:

Jan 10, 2019

Appl. No.:

16/244849

Inventors:

- Tampa FL, US
Faron Achziger - Tampa FL, US
Prashant Datar - Tampa FL, US
Kin Cheung - Tuen Mun, HK
Frank Chun - Tseung Kwan O, HK
Patrick Correia - Tampa FL, US

International Classification:

H04L 12/58
H04L 29/06
H04L 29/08

Abstract:

This invention is a system and method for an interworking function that handles communications between Rich Communication Services (RCS) Pre-Universal Profile (Pre-UP) and Universal Profile (UP) clients, and their Controlling Function and Participating Function service points. The interworking function supports the interworking for Pre-UP and UP clients in the following scenarios: 1) CPM Standalone Messaging and CPM 1-to-1 Chat, 2) CPM Chat and IM/SIMPLE Chat, 3) File Transfer by MSRP and File Transfer by HTTP, and 4) Open Group Chat and Closed Group Chat. The interworking function performs the necessary SIP message conversation and/or headers and message bodies manipulation, acts as MSRP client and server, acts as a HTTP server to store file for file transfer interworking, and acts as message proxy for Controlling Function and Participating Function.

US Patent:

20190159016, May 23, 2019

Filed:

Nov 14, 2018

Appl. No.:

16/190965

Inventors:

- Tampa FL, US
Huiyue Xu - Tampa FL, US
Sreenivasa Ganji - Tampa FL, US
Prashant Datar - Tampa FL, US

International Classification:

H04W 8/18
H04B 1/3816
H04W 12/06
H04L 29/06
H04W 12/00

Abstract:

A system for supporting the deployment of an embedded subscriber identification module (eSIM) provisioning management system on the ES3 interface between Subscription Manager Data Preparation (SM-DP) of a target mobile network operator (MNO) and Subscription Manager Secure Routing (SM-SR) of a current MNO. A SM-Proxy implements a SM-SR functionality on a first interface towards the SM-DP, and implements a SM-DP functionality on a second interface towards the SM-SR. A hosted SM-DP implements a RESTful API to receive SIM profile information from a provisioning server in the target MNO's network. An Agreement Management system controls a set of eSIM provisioning rules. A Service Portal enables the MNOs to manage their eSIM provisioning rules across their MNO partners.