Telefonaktiebolaget Lm Ericsson (publ)

Ericsson Gmbh

Dipankar Ray

Vladimir Alperovich

John Peter Curtin

Louis Segura

Aqeel Siddiqui

Rene Gallant

Sven Anders Börje Svensson

Sonal Pauddar

Pankaj Pobaru

A service based Ringback Tone service that may be personalized by a calling party instead of a called party. The calling party generates and stores an originating profile that contains Ringback Tones or Ringback messages associated with a Ringback Tone subscriber (called party). When the calling party contacts the called party, the Ringback Tone chosen by the calling party and associated with the called party is then sent to the calling party until the calling party answers the call.

Method and apparatus for ringback tone personalization

A base station in a wireless communication network saves connection information that enables it to recognize currently authenticated mobile stations. The base station carries out localized connection management processing for authenticated mobile stations, at least for certain types of packet data connection events. By carrying out localized processing, the base station skips the connection management signaling between it and a supporting mobile switching center that would otherwise be required for processing such events. Thus, in a cdma2000 base station embodying such localized processing, the MSC's involvement in packet data connection state transitions, short data burst deliveries, etc., can be eliminated or at least greatly reduced, thereby minimizing the MSC's role in supporting packet data services. In conjunction with localized processing, the base station still may require MSC-based re-authentication by individual mobile stations according to some timed schedule, or according to some form of packet data activity monitoring.

Method and apparatus to reduce mobile switching center involvement in packet data call support

The invention relates to a method for maintaining a Point-to-Point Protocol (PPP) connection between a Mobile Terminal (MT) and a Packet Data Serving Node (PDSN). Responsive to a detection at the PDSN that the PPP connection between the PDSN and the MT is inactive, the method sends a first Link Control Protocol (LCP) Echo Request, which including a Short Data Burst (SDB) parameter, wherein the SDB parameter indicates that the message is sent using SDB, from the PDSN to a Base Station Controller/Packet Control Function (BSC/PCF) for locating the MT. The method further determines on the reception of SDB parameter, not to setup a traffic channel (TCH) between the MT and a serving BS. Next, the method sends from the BSC/PCF to the BS a second LCP Echo Request, which includes a NO Traffic Channel (No TCH) parameter instructing not to setup a traffic channel for the MT.

PPP connection during simple IP

A system and method is disclosed for improved session management when roaming between access networks (AN) within a data cellular network. In one embodiment, gateway functionality is added to one AN in each subnet. The Gateway AN (GAN) provides session transfer capabilities during a dormant handoff with a source AN located in a different subnet. The GAN is responsible for receiving session information request messages from target AN's within the local subnet, querying other GANs within other subnets to locate the subnet that contains the source AN for the session and routing the session information back to the target ANs. In another embodiment, an extended session is established across several ANs within a subnet. When an Access Terminal (AT) initiates a new extended session, the responsible AN negotiates a common session across the ANs covered by the extended session area. During the session negotiation, each AN establishes a new session and allocates a new Unicast Access Terminal Identifier (UATI). Each AN is notified of each UATI allocated for the extended session. Once the negotiation between ANs is completed, the AT can roam anywhere within the extended session area without re-negotiating the session or transferring session information.

System and method for improved session management in a data cellular network

A method, apparatus, and system for dynamic allocation of a network address associated with a virtual subnet ( ) to a network device ( ) having a transceiver ( ) coupled to a network ( ) for broadcasting an address server query message ( ) in response to initialization of the network device ( ) and an address server ( ) coupled to the network ( ) sending the network address associated with a virtual subnet ( ) to the network device ( ) in response to the address server ( ) receiving the address server query message ( ).

Automatic discovery of nodes associated with a virtual subnet

A telecommunications system and method is disclosed for utilizing an Internet telephony system to perform a handover of a call between different types of systems. When a serving mobile switching center (MSC) determines that there is not another MSC belonging to the same type of wireless system to which a handover can be performed, the serving MSC sends a message to an Internet Gatekeeper via an Internet Gateway for the serving MSC, inquiring whether there are any other types of wireless systems nearby. The Internet Gatekeeper maintains a database of all existing wireless systems within the area served by the Internet Gatekeeper. The Internet Gatekeeper chooses a target MSC of another wireless system (if possible), and transmits the identity of this target MSC back to the currently serving MSC. Thereafter, the currently serving MSC performs the handover to the target MSC by routing signaling messages through the Internet Gateway and the Internet Gatekeeper to the target MSC.

System and method for performing an inter mobile system handover using the internet telephony system

A telecommunications system and method is disclosed for defining location-based group services, which can be implemented within a Group Call Services (GCS) node associated with a cellular network. When a group call is initiated, the GCS can send a positioning request to a Mobile Location Center (MLC) to locate the group members within a specified area. The particular location can be defined by the group number or the location can be prompted by the GCS. For each group member, the position of a mobile terminal associated with that group member is determined and the call is set up only to those members which the meet the specified area criteria. If none can be located within the specified area, the area can be expanded at the callers request.

System and method for location-based group services

A telecommunications system and method is disclosed for providing a substantially immediate electronic receipt after a consumer has made a purchase. When a consumer makes a purchase, the sales terminal, which is attached with a short message/e-mail sending capable terminal, can generate and route a short message along with the detailed purchase information to a transport address or alias address associated with the consumer via a Gatekeeper for the Internet for the area that the sales terminal is located in. Upon receipt of the short message, the Gatekeeper can then convert the alias address to the transport address, if the alias address is given and the consumer does not want the short message sent to the alias address, and forward the short message through the Internet to that transport address (or alias address) as an Internet Protocol datagram for storage and retrieval of the short message by the consumer either immediately or at a later time.

Growing community of inventors

Plano, TX, United States of America

Dipankar Ray