T-mobile Usa, Inc.

Sheraz Dar

Zakir Hussain Syed

Joel Arends

Rahul Amin

Fadi El Banna

Sudhanshu Pandey

Niranjan Piratla

Venkat Kondeti

Srikanth Bionapally

An open group chat (OGC) session is initiated between mobile devices registered to different telecommunications networks by first verifying whether each implicated network has a network-to-network interface (NNI) agreement with each other network. A first mobile device receives a request to initiate an OGC session between the first mobile device, a second mobile device registered to a second telecommunications network, and a third mobile device registered to a third telecommunications network. The first device determines, based on a response received from the second network, if an operator of the second network and an operator of the third network have an NNI agreement. If the received response indicates the operators of the second and third networks do not have an NNI agreement, the first mobile device sends a non-OGC message, such as a multimedia messaging service (MMS) message or a closed group chat (CGC) message, to the second and third devices.

Rich communication services in multi-carrier environments

A system receives an electronic message over the internet at a WebRTC gateway (WRG) of a telecommunications network. The system forwards the electronic message to a call session control function (CSCF) using session initiation protocol (SIP). The system detects a failed delivery of the electronic message at a rich communication service configured to deliver and monitor delivery of the electronic message and report failed deliveries. The system generates a failed delivery notification indicating that the electronic message was not delivered. The system receives the failed delivery notification at the WRG and at the WRG converts the electronic message to either a short messaging service (SMS) or multimedia messaging service (MMS) message. The system sends the SMS or MMS message from the WRG to the CSCF using SIP. The system forwards the SMS or MMS message to a short message service center (SMSC), which delivers the SMS or MMS message.

Messaging system capable of converting electronic messages on a telecommunications network

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 for enabling sharing of call and/or messaging services between mobile devices via wireless connection, e.g. a Bluetooth connection. The systems and methods allow a first mobile user to register as a host user. A guest user sends a service sharing request, via the Bluetooth connection, to the host user's mobile device requesting permission to make calls and/or send messages using the host user's mobile account. When the host user accepts the service sharing request, the service sharing system inserts an identification code of the guest user in the call data record to help identify the actual call/message originating party. Once a transaction is established between the guest user's mobile device and the destination number, via the Bluetooth connection to the host user's mobile device, the service sharing system may monitor the transaction duration to ensure that it does not exceed the specified call duration or other limit.

Service sharing between devices

The disclosure sets forth techniques that enable mobile devices to send and receive multimedia files across dissimilar communication platforms. Multimedia files being sent between mobile devices may be subject to file size limits, based on the communication platform being used and the capability metrics of the mobile devices. This disclosure describes techniques for transmitting a multimedia file as a plurality of segment files, for the purpose of conforming with file size limits associated with a sending device or a recipient device. A multimedia file may be partitioned into a plurality of segment files that may be re-combined into a single multimedia file that substantially reproduces the multimedia content of the original multimedia file. Further, a multimedia file may be partitioned into a plurality of playable segment files that, when executed or played individually and in sequential order, substantially reproduce the multimedia content of the original multimedia file.

Multimedia file adaption across different communication platforms

The disclosed system provides blocking of incoming messages that are intended to be received on a mobile device of a user who is operating a vehicle. When an incoming message is received, the disclosed system retrieves driving status information for the destination mobile device to determine whether it is in a vehicle that is being driven. If the destination mobile device is in a vehicle that is being driven, the system blocks message delivery to the recipient and places the incoming message in a holding queue. The system may notify the sender that the incoming message has been blocked. If the destination mobile device is not in a vehicle that is being driven, the system delivers the incoming message to the destination mobile device along with any messages in the holding queue. The system optionally notifies the sender that the incoming message and/or the previously queued messages have been delivered.

Message blocking and network queuing, for example while recipient is driving

When a message server of an Internet Protocol (IP) network, such as a Rich Communication Services (RCS) server, receives a message addressed to a destination identifier, but cannot immediately forward the message on to a terminating communication device associated with the destination identifier, the message server can store the message in a message database. When a communication device associated with the destination identifier connects to a legacy network, a Short Message Service Center (SMSC) of the legacy network can send the message server a Short Message Peer-to-Peer (SMPP) message with a predefined alert indicator signaling that the communication device is available to receive messages through the legacy network. The message server can accordingly retrieve the stored message from the message database and send the message to the communication device through the legacy network.

Growing community of inventors

Maple Valley, WA, United States of America

Sheraz Dar