Telefonaktiebolaget Lm Ericsson (publ)

Juan Noguera-Rodriguez

Christian Norman Groves

Leslie Gary Graf

Mark Alan Hollis

Ian Rytina

Stephen Christopher Terrill

Johan Rune

Yun Chao Hu

Lars Kari

Nebosja Dikic

Barry Dingle

David De Nicolo

Paul Hollis

Stephen Terrill

John Kerr

Phil Hodges

G&ouml;ran Christersson Rune

Sune Ramström

Sune Ramstr&ouml;m

Fredrik Åberg

Mark Hollis

Christian Groves

Stephen Terril

The present invention relates to the information transmission rate between telecommunications nodes. More particularly the invention relates to the control of the rate at which information is transmitted between access nodes separated by a core network. The present invention provides an information rate control function adapted to authorize and/or establish a communication rate for transmission of information including: determining a plurality of maximum information transmission rates along a path of communication established between the plurality of access nodes; selecting a lowest one of the plurality of maximum information transmission rates, and; authorizing and/or establishing communication at a rate no greater than the selected lowest rate. The invention is suitable for use in the transmission of voice information to and from mobile terminals in third-generation mobile access networks across an ATM core network.

Information transmission rate control across a core network

A method of negotiating a call capability between signalling points in a telecommunications system. The method comprises sending a capability preference or prioritised list of preferences from an originating signalling point to a terminating signalling point or signalling transfer point, at the Call Control level. A capability acceptance is returned from the terminating signalling point or signalling transfer point to the originating signalling point at the Call Control level, if the terminating signalling point or signalling transfer point accepts a preference sent by the originating signalling point.

Capability negotiation in a telecommunications network

The present invention relates generally to telecommunication services and, in particular, to a system and method of managing a call, particularly with regard to a modification to bearer characteristics. In one aspect the invention provides a method and system of managing a call in a telecommunication system, the telecommunication system including a network having at least one call controller effecting a call control function and at least one bearer controller effecting a bearer control function, the call controller and the bearer controller separated by a vertical control protocol interface, including providing in at least one message, communicated within the telecommunication system, an indication of the capability of the at least one bearer controller to modify a characteristic of a bearer; and receiving and storing said indication in the at least one call controller. In another aspect the invention provides a media gateway controller being operable to request indications and to receive indications from at least one media gateway of the capability of the at least one media gateway to modify a characteristic of a bearer established by the at least media gateway. In a preferred embodiment the invention provides a media gateway controller operable to receive requests for an indication of the capability of the at least one media gateway to modify a characteristic of a bearer established by the media gateway.

Method and system of managing a call in a telecommunication system

The present invention relates generally to the transport of information between telecommunications nodes. In one aspect, in a telecommunication system having a first network based on a first technology and a second network based on a second technology, the second network in communication with the first network, the present invention relates to providing a message encoding format profile functionality adapted to enable transport of encoded information along at least a portion of a path of communication established between the networks, including: mapping the encoded information from a first message having a first message encoding format to a second message having a second message encoding format wherein the mapping is performed in accordance with the following steps: a) determining message User-to-User Indication information; b) determining message Length Indicator information and; c) selecting a message encoding format based on the determination of steps a) and b), above. Preferably, the encoded information is AMR codec encoded information. The invention is suitable, for example, for use in the transmission of AMR encoded voice information to and from a mobile terminal in third-generation radio access networks across an ATM core network.

Transport of encoded information across a core network

A method of signalling in a telecommunications system that includes a Call Control level and a Bearer Control level, where the Call Control level includes a plurality of Media Gateway Controllers and the Bearer Control level includes a plurality of Media Gateways, each of which is controlled by a Media Gateway Controller. The method includes allocating to each Media Gateway at least one address that corresponds to one of a plurality of different addressing formats, and conveying these addresses between peer Media Gateway Controllers by encapsulating them using a Network Service Access Point addressing format.

Addressing in a communications network comprising call control level and bearer control level by utilizing network service access point (NSAP) addressing format

A method and apparatus for providing an indication, in a system which uses a gateway location register to reduce signaling between visitor location registers and home location registers, to a home location register of the features not supported by a visitor location register. The indication of the features not supported by the visitor location register can be provided to the home location register during a location update message exchange or a data restoration request message exchange. The indication can also be provided in an information update message.

Support for features associated with a subscriber in networks with a gateway location register

The present invention relates to a system and method of communicating operating capabilities in a telecommunication network or networks. The present invention stems from the realisation that mobile telecommunication network resources can be utilised with greater efficiency by maintaining mobile station attributes or operating capabilities at a network node associated with the mobile station. Preferably, the network node is a Visitor Location Register VLR. Additionally, the network node may be a Home Location Register HLR, a Mobile Switching Centre MSC or a Gateway Mobile Switching Centre GMSC. In particular, the invention may provide the creation of a list of operating capabilities at a network node upstream from the mobile station. Having done this, a comparison of this list with another list received from a remote telecommunication element to negotiate operating capabilities at a call set up is achieved without involving communication resources between the mobile station and the network node.

System and method of communicating operating capabilities in a telecommunication network

A gateway location register (GLR) can restore data by sending a reset message to all of the visitor location registers (VLR) associated with the GLR. Alternatively, the data in the GLR can be restored when a request for a roaming number is sent to the GLR from a home location register (HLR). In any case the location information is restored from the VLR and the subscriber profile from the HLR. If the GLR has a backup memory, the GLR can forward a request for a roaming number to a VLR which is indicated by the backup memory as serving the mobile subscriber associated with the roaming number request received from the HLR. If the information contained in the backup memory is incorrect, the GLR can send a request to restore data to all VLRs associated with the GLR. Further, the GLR, upon receipt of a roaming number request for a subscriber whose serving VLR is unknown, the GLR can send an error indication to the HLR and wait for a location update from a serving VLR. In addition, if the backup data is incorrect or non-existent, the GLR can send a request for a roaming number to all its associated VLRs which have not yet received the request.

Gateway location register fault recovery

A signalling point of a telecommunications network comprises a Transport Independent Call Control (TICC) part . A signalling transport part is arranged to exchange call control signalling information with the TICC part and with a peer TICC part at a remote signalling point. A signalling transport converter is arranged logically between the TICC part and said signalling transport part and is arranged to present a standard interface to the TICC part and a specific interface to the signalling transport part , wherein said call control signalling is exchanged between the TICC part and the signalling transport part via the signalling transport converter

Signalling in a telecommunications network

In a mobile communications network that employs diversity combining/splitting, CN-RNC interface streamlining can be accomplished more efficiently by reconfiguring the network diversity legs, which are combined into a single data stream by the serving radio network controller, wherein the serving radio network controller is directly connected to the core network via the CN-RNC interface. Reconfiguration of the network diversity legs is accomplished by releasing the transport level connections which support the network diversity legs prior to CN-RNC interface streamlining, and establishing new transport level connections to support the reconfigured, network diversity legs subsequent to CN-RNC interface streamlining. To establish new transport level connections, the serving radio network controller dispatches binding information to each of the destination nodes associated with the network diversity legs. The destination nodes then utilize the binding information to bind network resources to the transport level connections which support the reconfigured network diversity legs between the destination nodes and the serving radio network controller.

Reconfiguring diversity legs during CN-RNC interface streamlining

A method of signalling in a telecommunications network comprises generating signalling messages at an Application Part or a User part of an originating signalling point, the messages having a maximum length of 272 octets. The generated signaling messages are transferred to a Message Transfer Part layer 3 (MTP3) of the originating signalling point, and on the basis of the destination signalling point of the received signalling message, it is determined whether or not the message is to be transmitted over an NNI-SAAL signalling link. If the message is to be transmitted over an NNI-SAAL signalling link, the message is transferred to an NNI-SAAL part of the originating signalling point. If the message is not to be transmitted over an NNI-SAAL signalling link, the message is transferred to an MTP2 part of the originating point.

Signalling in a telecommunication network

A method and apparatus for providing regional subscription data in a network where a gateway location register is serving networks in more than one country. Further, regional subscription information is also provided where a gateway location register serves a plurality of networks in the same country. In addition, efficient routing of mobile terminated short message service packets and packet data is provided.

Administration of regional subscription restriction in a network that includes a gateway location register

A method and apparatus for home location register fault recovery in a system which uses a gateway location register to reduce signaling between visitor location registers and home location registers. When a home location register is recovering from a fault, the home location register sends a reset message to the gateway location registers which are serving mobile subscribers associated with the home location register. The gateway location register sends a reset message to visitor location registers which are serving mobile subscribers associated with the home location register. The gateway location register can determine which mobile subscribers are associated with the home location register by comparing mobile subscriber identification information stored in the gateway location register with information contained in the reset message from the home location register.

Growing community of inventors

Bromma, Sweden

Juan Noguera-Rodriguez