Telefonaktiebolaget Lm Ericsson (publ)

Other

Dick Sven Andersson

Torgny Karlsson

Lars Anders Frid

Ulf Olsson

Rolf Hansson

Anders Herlitz

Jeremy Hamill-Keays

Henrik Hummelgren

Martin Backstrom

Ulf Axelsson

Arne Pehrsson

A method and communications network is provided that directly routes a call from a calling party to a called mobile party using an IP network. More specifically, the method includes the step of determining at the IP network as to whether the called mobile party is currently roaming outside a home mobile network. In response to an affirmative determination, an address of a destination mobile network currently occupied by the called mobile party is obtained at the IP network, and the call between the calling party and the called mobile party is connected using the IP network and the destination mobile network while bypassing the home mobile network. In response to a negative determination, an address of the home mobile network is obtained at the IP network, and the call between the calling party and the called mobile party is connected using the IP network and the home mobile network.

Communications network and method for directly routing calls to mobile subscribers using an internet protocol network

A relatively large short message (BC-SMS) is broadcast to a selected group of mobile subscriber stations within a cellular radio system. Each BC-SMS message greater in size than a predetermined number of octets is divided into segments, formatted into a separate modified paging message (PBC) which is unrecognizable to existing mobiles but recognizable to new mobiles. The BC-SMS message segments are broadcast in sequence as modified paging messages to the mobiles within the region of the system where the selected group is believed to be operating. Each paging message includes the essential elements of a paging message, a message ID number, a sequence number and the message segment payload.

Method and system for broadcasting large short messages

A packet-switched voice call directed to a mobile subscriber unit in a cellular communication network is processed by determining whether the mobile subscriber unit is in a circuit-switched mode of operation and, if so, either forwarding the information in the packet-switched voice call to a destination other than the mobile subscriber unit or notifying the mobile subscriber unit that the packet-switched voice call is waiting.

Processing packet-switched voice calls directed to a mobile unit operating in circuit-switched mode

A method, and associated apparatus, prevents misrouting of packet-data in a radio communication system subsequent to an abnormal communication session termination by a wireless host. When a determination is made that a communication session between a wireless host and another host has terminated abnormally, a temporary address used to identify the wireless host is not permitted to be immediately reassigned to identify another wireless host. Misrouting of data to another wireless host subsequent to the abnormal communication session, termination is thereby avoided.

Method and apparatus for preventing misrouting of data in a radio communication system

A method and apparatus are provided for effectuating voice communication between a mobile station and a mobile radio network. A gateway to the mobile radio network receives an incoming voice call for a destination mobile station and accesses information pertaining the status and location of the destination mobile station. A determination is made as to whether the destination mobile station is capable of operation in a voice mode using circuit-switched communications across a traffic channel. If the destination mobile station is operable in the voice mode, a circuit-switched communication on a traffic channel is established between the mobile radio network and the destination mobile station. Otherwise, the incoming voice call is routed to a voice gateway which converts the voice call to data packets and routes the data packets to the mobile station across an Internet Protocol communication network to a packet gateway of the mobile radio network. The packet gateway routes the call across a packet data channel of the mobile radio network to the destination mobile station using a packet data service.

Internet protocol telephony for a mobile station on a packet data channel

A roaming mechanism enabling a mobile station to roam between a first data packet network utilizing a Mobile IP Method (MIM) and a second data packet network utilizing a Personal Digital Cellular Mobility Method (PMM) is disclosed. A foreign agent (FA) is introduced into the PMM network for enabling a mobile station associated with the MIM network and currently roaming within the PMM network to communicate packet data with an associated home agent (HA). A home agent (HA) is further introduced into the PMM network for enabling a mobile station associated with the PMM network and currently roaming within the MIM network to communicate packet data with an associated FA or Mobile IP Client Emulator (MICE) currently serving the roaming mobile station.

Communicating packet data with a mobile station roaming within an

A method and apparatus for generating a TCP packet connection between a remote host on a first network and a mobile station on a mobile network is disclosed. The process initially involves performing a three-way handshake routine between the remote host and a gateway packet mobile switching center of the mobile network to establish the validity of a TCP packet connection request. During the handshake routine transmissions from the remote host are buffered by the gateway packet mobile switching center. A second three-way handshake routine is then carried out between the gateway packet mobile switching center and the mobile station using the buffered transmissions to complete a TCP connection between the mobile station and the remote host.

Use of transmission control protocol proxy within packet data service

A method, and associated apparatus, for the selective transmission of packet data to a mobile terminal operable in a radio communication system. When packet data is to be terminated at the mobile terminal, an SMS (short message service) message is first transmitted to the mobile terminal. A determination is made at the mobile terminal whether to permit transmission of packet data thereto. The packet data is transmitted to the mobile terminal if permission is granted by the mobile terminal.

Method, and associated apparatus, for selectively permitting

A telecommunications system and method for the exchange of standards information facilitates communication by invoking a standards translator whenever two users within the system utilize incompatible communication technologies. In accordance with an embodiment of the present invention, standards information is interchanged between two communications nodes, such that the equipment at those nodes may communicate with each other directly if the same standards are used at both nodes or communicate through the aid of the standards translator when different standards are used. The system and method of the present invention, through the interchange of standards information between the nodes, minimizes communications disruptions caused by mismatched standards.

System and method for data exchange between subscribers supporting

A method and apparatus for providing a call circuit connection between a mobile station and a remote application host is disclosed. Once a call circuit connection is initially established between a mobile station and remote application host to enable data to transfer therebetween, the call circuit connection is monitored for detection of an idle condition. Upon detection of the idle condition, identifying information for the call circuit connection is stored, and a first portion of the call circuit connection is disconnected while maintaining a second portion of the connection. Upon a request for reconnection of the call circuit connection, the first portion of the call circuit connection is reestablished with the second portion to enable continued data transfer.

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Kista, Sweden

Dick Sven Andersson