Abstract:
A method and system in a heterogeneous environment, capable of locating at least one optimal access area or point for supporting one or more access technologies requested by the user. The determination of the optimal access areas or points is based in part on the location of the device, the specified user preferences, service/application requirements and the capabilities of available access network connections. The optimal access points, and alternative options, are mapped in accordance with the resulting location, combined requirements and service/application requirements of the communication device. This mapping and other information/recommendations related to the access points are then provided to the communication device for action by the user.
Abstract:
There are voice signals from at least two voice sources which are multiplexed by an ATM Adaptation Layer 2 multiplexer (AAL2 MUX) into the same ATM connection after having been processed by a packetizing means such that the AAL2 MUX is presented with assembled AAL2 packets of a suitable periodicity. If the voice data signals are to be compressed, the packetizing means comprises an encoder of a suitable voice codec, e.g. ADPCM, GSM, LD-CELP or CS-ACELP. The voice encoders may also include means for silence removal. The packetizing means further comprises a packetizer, either separated from the voice encoder, or as a part thereof. The packet releases from the packetizing means are synchronized to occur virtually simultaneously. In this way, the released packets from the packetizing means arrive almost simultaneously at the AAL2 MUX, with the result that an ATM cell may be filled with AAL2 packets well before the expiration of the timer Timer-CU of the AAL2 MUX.
Abstract:
The present invention relates to resource reservation for establishing end-to-end quality of service in a digital communication system, without resource reservation signalling over the access bearer. The solution, according to the invention is to remove the resource reservation protocol signalling on the IP level, over the access interface, e.g. the expensive and narrow radio channel, and introduce an resource reservation protocol proxy in the network. The introduction of the proxy functionality still supports the possibility, or meets the requirement, to reserve resources end to end.
Abstract:
There are voice signals from at least two voice sources which are multiplexed by an ATM Adaptation Layer 2 multiplexer (AAL2 MUX) into the same ATM connection after having been processed by a packetizing device, such that the AAL2 WX is presented with assembled AAL2 packets of a suitable periodicity. If the voice data signals are to be compressed, the packetizing device includes an encoder of a suitable voice codec, e.g. ADPCM, GSM, LD-CELP or CS-ACELP. The voice encoders may also include devices for silence removal. The packetizing device further includes a packetizer, either separated from the voice encoder, or as a part thereof. The packet releases from the packetizing device are synchronized to occur virtually simultaneously. In this way, the released packets from the packetizing device arrive almost simultaneously at the AAL2 MUX, with the result that an ATM cell may be filled with AAL2 packets well before the expiration of the timer of the AAL2 MUX.
Abstract:
Narrowband based telephony services and associated value added services are provided transparently in a network providing ATM switching and no STM switching is required in an ATM network ( 625 ) to which units ( 601, 603 ) requiring such services are connected. This is obtained by means of, when a call enters the ATM network ( 625 ), first finding the output port ( 619 ) from the ATM network ( 625 ), then returning the address of that port to the entry port ( 617 ) and thereafter ATM switch the connection directly through the ATM network ( 625 ). Hereby bandwidth resources are more efficiently used since all switching is done by ATM regardless of application. Heavy investments in providing intelligent services support by existing systems can be reused in an efficient way and thus reduce time to market for the introduction of the value added services.
Abstract:
Narrowband based telephony services and associated value added services are provided transparently in a network providing ATM switching and no STM switching is required in an ATM network ( 625 ) to which units ( 601, 603 ) requiring such services are connected. This is obtained by means of, when a call enters the ATM network ( 625 ), first finding the output port ( 619 ) from the ATM network ( 625 ), then returning the address of that port to the entry port ( 617 ) and thereafter ATM switch the connection directly through the ATM network ( 625 ). Hereby bandwidth resources are more efficiently used since all switching is done by ATM regardless of application. Heavy investments in providing intelligent services support by existing systems can be reused in an efficient way and thus reduce time to market for the introduction of the value added services.
Abstract:
The present invention relates to resource reservation for establishing end-to-end quality of service in a digital communication system, without resource reservation signalling over the access bearer. The solution, according to the invention is to remove the resource reservation protocol signalling on the IP level, over the access interface, e.g. the expensive and narrow radio channel, and introduce an resource reservation protocol proxy in the network. The introduction of the proxy functionality still supports the possibility, or meets the requirement, to reserve resources end to end.
Abstract:
The present invention relates to multimedia communication between end systems in IP environments and more particularly it relates to the problem that all services concerning processing of media streams are bundled. The solution, according to the invention is a communications system in which a service is publicly available by any end system via a published Uniform Resource Identifier (URI),
Abstract:
The invention is concerned with a method in a communication network for invoking services, the communication network comprising at least one or more terminals and at least two service entities. In the method the terminal deduces necessary support and service components for providing an end-user service. A set of configuration requests is the constructed at the terminal, each associated with one or more specific service entities for invoking individual service components composing a service. Each configuration request is forwarded from the terminal to the service entity/entities indirectly, by using a special network support function for configuring service entities - the assembler unit of the invention - or directly in a way, which is chosen in accordance with pre-defined criteria. The invention is also concerned with a communcation network, a terminal and an assembler unit to perform the method.