摘要:
The combination of narrowband applications with broadband transport may be enabled with a tri-level nodal system in which a narrowband node (e.g., a telecommunications node) may provide switching intelligence to the switching fabric of multiple broadband nodes (e.g., media gateways). The switching intelligence is provided via an intermediate node (e.g., mediation logic) that emulates a switch interface for the narrowband node and translates circuit-based addresses/routing instructions to packet-based addresses/routing instructions. This translation equates to a mapping of address(es) in a first address space to address(es) in a second address space in order to utilize the address(es) of the second address space for propagating communications on a broadband transport mechanism.
摘要:
The combination of narrowband applications with broadband transport may be enabled by implementing a hybrid switch capable of operating as a narrowband switch, a broadband switch, and/or a combination narrowband/broadband switch. The hybrid switch may be initially installed/activated as a narrowband switch in order to operate with a network of all or mostly all narrowband switches. Eventually, the hybrid switch may be used entirely as a broadband switching mechanism when operated with a network of all or mostly all broadband switches. In the interim, the hybrid switch may be operated in a narrowband or a broadband mode on a communication-by-communication basis, for example, depending on the capabilities of the node or nodes to be used in establishing a given communication. The hybrid switch may include both broadband (e.g., ATM) and narrowband (e.g., STM) switching components.
摘要:
ATM is used as a transport and switching mechanism in a hybrid STM/ATM network while the signaling remains normal narrowband signaling. The narrowband signaling is transported on permanent paths over ATM connections, and the narrowband speech channels are transported on ATM and switched on a “Per call basis” (on-demand) through an ATM switch. A translator formats a call-setup-related signaling message into ATM cells so that the signaling message can be routed through an ATM switch to a circuit switched (STM) node. The circuit switched node (PSTN/ISDN) sets up a physical connection for the call and generates a further signaling message therefor that relates to the physical connection. The ATM switch routes an ATM cell-formatted version of the further signaling message to another ATM switch over an ATM physical interface. Thus, the ATM switch switches both narrowband traffic and signaling for the call over the ATM physical interface.
摘要:
ATM is used as a transport and switching mechanism in a hybrid STM/ATM network (20), while the signaling remains normal narrowband signaling. The narrowband signaling is transported on permanent paths over ATM connections, and the narrowband speech channels are transported on ATM and switched on a “per call basis” (on-demand) through an ATM switch. The hybrid STM/ATM network has an access node (22) which services narrowband terminals and which generates a signaling message in connection with call setup. A translator (50) formats the first signaling message into ATM cells so that the first signaling message can be routed through an ATM switch (40) to a circuit switched (STM) node (30). The circuit switched node (PSTN/ISDN) sets up a physical connection for the call and generates a further signaling message for the call, the further signaling message pertaining to the physical connection. The ATM switch routes an ATM cell-formatted version of the further signaling message to another ATM switch over an ATM physical interface (41). Thus, the ATM switch switches both narrow band traffic and signaling for the call over the ATM physical interface.
摘要:
A mobile telecommunications network is proposed with an access network portion (10) having several base station systems (101) that can communicate with a core network portion (20). The base station systems are adapted to communicate with mobile terminals (1) over a licensed public mobile network air interface and with the core network portion over a predetermined network interface. The network also includes at least one local base station system (104, 105, 106) that is arranged to communicate with the core network portion over the predetermined network interface. This local base station system is further adapted to communicate with mobile terminals over an unlicensed radio interface (11). The local base station system makes use of an existing fixed network based on IP.
摘要:
A method and various devices (e.g., MME, GANCs, UE) are described herein for preventing a CS domain call from being dropped during a CSoLTEvGAN towards GERAN/UTRAN handover procedure.
摘要:
The present invention provides a method and architecture on how mobile stations (MS) are provisioned about information of an unlicensed mobile access (UMA) network controller (UNC). The UNC in accordance with the present invention provides three different logical roles (i.e., provisioning, default and serving). More specifically, the present invention provides a method for assigning a mobile station (MS) to an unlicensed mobile access (UMA) network controller (UNC) in an unlicensed mobile access network (UMAN). The MS is connected to a provisioning UNC and discovers a default UNC. A serving UNC is then determined to assign the MS to and the MS is assigned to the serving UNC. The serving UNC can be the default UNC, the provisioning UNC or another UNC.
摘要:
The present invention relates to methods and arrangements to test end to end relations between gateways MGW1, MGW2 in an IP network IPNW, which method comprises the following steps: 1) reserving call handling resources CH231-CH260 in a destination gateway MGW2; 2) sending data packets RTP/UDP/IP from an originating gateway MGW1 to the reserved call handling resources CH231-CH260; 3) looping back the received data packets RTP/UDP/IP, from the destination gateway MGW2 to the originating gateway MGW1; 4) providing quality statistics for the received data packets, in the originating gateway MGW1.
摘要:
A method and a mobile services switching center of providing differentiated services in a communications network. The method comprises receiving in a mobile services switching center an indication message from a first radio access network, said message indicating a radio access network type to which a called communication apparatus of a terminating communication session is connected, in response to the indication message: accessing differentiated service information associated with the radio access network type of the terminating communication session, and sending the differentiated service information to be applied for service differentiation by a second access network of calling communication apparatus.
摘要:
A method, server, and terminal for selecting an access domain for sending information between a wireless terminal and a core network, wherein sessions between the wireless terminal and the core network are established and controlled using an IP Multimedia Subsystem (IMS). A database maintained in the IMS stores information regarding real-time packet-switched service capabilities of a plurality of access domains. The database is interrogated based upon currently used and/or available access domains. An access domain is selected for use by the wireless terminal based upon the results of the interrogation.