Abstract: Methods for sharing service identity between client devices in a real-time communications network are presented including: registering a first client device with a server on the real-time communications network, the first client device registering with a shared service identity, where the first client device becomes an active client device; and when a second client device enters a physical proximity of the first client device; establishing a personal area network connection between the first client device and the second client device; registering the second client device with the server, the second client device registering with the shared service identity, where the second client device becomes the active client device and the first client device becomes a waiting device, where the waiting device discontinues communication with the server.

Abstract: Methods for barging an online user on a real-time communications network are presenting including: making a barge request by a barging user to barge online users; if online users are a part of an on-going call and the barging user has a barge privilege, joining the barging user with the on-going call; and if online users are not part of the on-going call and the barging user has the barge privilege, creating a new call with the barging user and the online user. In some embodiments, methods further include: if the barging caller is restricted and the barging user does not have the barge privilege, denying the barging user from the joining; and if the barging caller is not restricted and the barging user does not have the barge privilege, joining the barging user with the on-going call, and granting the floor control based on a standard floor control rule.

Abstract: Methods for sharing service identity between client devices in a real-time communications network are presented including: registering a first client device with a server on the real-time communications network, the first client device registering with a shared service identity, where the first client device becomes an active client device; and when a second client device enters a physical proximity of the first client device; establishing a personal area network connection between the first client device and the second client device; registering the second client device with the server, the second client device registering with the shared service identity, where the second client device becomes the active client device and the first client device becomes a waiting device, where the waiting device discontinues communication with the server.

Abstract: Methods for barging an online user on a real-time communications network are presenting including: making a barge request by a barging user to barge online users; if online users are a part of an on-going call and the barging user has a barge privilege, joining the barging user with the on-going call; and if online users are not part of the on-going call and the barging user has the barge privilege, creating a new call with the barging user and the online user. In some embodiments, methods further include: if the barging caller is restricted and the barging user does not have the barge privilege, denying the barging user from the joining; and if the barging caller is not restricted and the barging user does not have the barge privilege, joining the barging user with the on-going call, and granting the floor control based on a standard floor control rule.

Abstract: Methods for providing full duplex media service over a communications network employing simplex media paths are presented including: establishing a simplex media path and session over a terminal using a communication protocol; establishing an additional simplex media path and session over an additional terminal using the communication protocol; and utilizing the simplex media path and session with the additional simplex media path and session to provide full duplex media service between the terminal and the additional terminal. In some embodiments, after establishing the additional simplex media path and session, processing media on the additional terminal. In some embodiments, the communications network is a Push-to-Talk over Cellular (PoC) network and the simplex media path and session and the additional simplex media path and session are Push-to-Talk (PTT) sessions.

Abstract: The present invention relates to mobile data communications in general, and more specifically, the present invention describes a route optimization technique requiring no awareness of the Mobile IP protocol by a Correspondent Node when forwarding traffic using the shortest path between a Mobile Node and the Correspondent Node in a visiting domain. The invention describes the management of route entries, network address translations and firewall filters in order to provide a secure, yet, flexible deployment of Mobile IP route optimization. Specific considerations are described for the case of separate Foreign Agent and co-located care-of address respectively.

Abstract: Methods for providing a heartbeat during a communication session utilizing repetitive control messages in a communications network, the communication session configured for delivering a media stream, are presented including: transmitting the repetitive control message between participants in the communication session at a selected rate corresponding with the heartbeat, wherein the participants includes a talking participant and a listening participant, and wherein the repetitive control messages provide updated status for the participants. In some embodiments, method further include: setting timers corresponding with the repetitive control messages; and if any of the timers expires before an acknowledgement of any of the repetitive control messages is received from the participants, triggering one or more actions to update the participants of a change in status for the communication session. In some embodiments, the selected rate is in the range of approximately 0 to 5 seconds.

Abstract: Methods for providing a conversational-style user experience in a simplex based session over a real-time communication network are presented, the method including: establishing the simplex based session between a first UE and a second UE by the real-time communication network; and while receiving a first media stream from the first UE, if the second UE has a first priority equal to the first UE, executing a first Reciprocal pre-emptive priority (Reciprocal-PP) interruption of the first UE by the second UE, wherein floor control is granted to the second UE such that the first UE is reconfigured to receive a second media stream from the second UE; and while receiving the second media stream from the second UE, if the first UE has a second priority equal to the second UE, executing a second Reciprocal-PP interruption of the second UE by the first UE.

Abstract: The present invention describes a network-based mobile workgroup system allowing a selected set of users from two or more mobile virtual private networks to form an extranet workgroup in a secure manner. The invention is based on the limited private address scenario, which entitles mobile nodes having private, possibly overlapping, addresses as defined in RFC 1918, while home and foreign agents have public IP addresses. Each home agent is dedicated to one mobile virtual private network (M-VPN), while a foreign agent may be shared by multiple M-VPNs. The system also entails a mobile service manager that has a public IP address and a set of mobile nodes that all have a UFQDN (user fully qualified domain name) within the overall mobile workgroup system. The main benefits, compared to existing solution for extranet workgroup creation, are that extranets can be created despite overlapping address realms. Even fine-granular workgroups within the extranet can be created with any set of users from any set of M-VPNs.

Abstract: A network-based mobile workgroup system has considerably wider appeal and application than normal virtual private networks in that it provides seamless mobility across a number of access technologies at the same time as it offers a granular security separation down to workgroup level. The mobile workgroup system is an access management system for mobile users with VPN and firewall functionality inbuilt. The mobile user can access the mobile workgroup system over a set of access technologies and select server resources and correspondent nodes to access pending their workgroup membership approvals. All workgroup policy rules are defined in a mobile service manager and pushed down to one or more mobile service routers for policy enforcement. The mobile service router closest to the mobile client, and being part of the mobile virtual private network, performs regular authentication checks of the mobile client during service execution.

Abstract: The present invention describes a network-based mobile workgroup system allowing a selected set of users from two or more mobile virtual private networks to form an extranet workgroup in a secure manner. The invention is based on the limited private address scenario, which entitles mobile nodes having private, possibly overlapping, addresses as defined in RFC 1918, while home and foreign agents have public IP addresses. Each home agent is dedicated to one mobile virtual private network (M-VPN), while a foreign agent may be shared by multiple M-VPNs. The system also entails a mobile service manager that has a public IP address and a set of mobile nodes that all have a UFQDN (user fully qualified domain name) within the overall mobile workgroup system.

Abstract: The present invention relates to mobile data communications in general, and more specifically, the present invention describes a route optimization technique requiring no awareness of the Mobile IP protocol by a Correspondent Node when forwarding traffic using the shortest path between a Mobile Node and the Correspondent Node in a visiting domain. The invention describes the management of route entries, network address translations and firewall filters in order to provide a secure, yet, flexible deployment of Mobile IP route optimization. Specific considerations are described for the case of separate Foreign Agent and co-located care-of address respectively.

Abstract: A system and method for scheduling packet transmissions, whereby a Base Station System (BSS) part provides scheduling-related information to a Switching System (SS) part for scheduling of LLC frames, which includes information about the total number of packet data service radio links in the cell, and for each user, the bandwidth per link. Consequently, the SS can determine the required link utilization and hence the transmission time for each data packet the SS submits for transmission over the radio links. As such, the SS can control all end-to-end QoS quantities for each data packet, and how these quantities are affected by the SS scheduling of the LLC frames to the BSS. In this way, the SS can completely control how QoS agreements with users are met.

Abstract: The present invention describes a network-based mobile workgroup system allowing a selected set of users from two or more mobile virtual private networks to form an extranet workgroup in a secure manner. The invention is based on the limited private address scenario, which entitles mobile nodes having private, possibly overlapping, addresses as defined in RFC 1918, while home and foreign agents have public IP addresses. Each home agent is dedicated to one mobile virtual private network (M-VPN), while a foreign agent may be shared by multiple M-VPNs. The system also entails a mobile service manager that has a public IP address and a set of mobile nodes that all have a UFQDN (user fully qualified domain name) within the overall mobile workgroup system. The main benefits, compared to existing solution for extranet workgroup creation, are that extranets can be created despite overlapping address realms. Even fine-granular workgroups within the extranet can be created with any set of users from any set of M-VPNs.