Abstract:
A method of communicating information in a communication system wherein a fixed host (162) is operably coupled to a communication network (350) via a gateway general packet radio server (GPRS) service node (GGSN) (174). The method includes the steps of transmitting (450) a message to the GGSN (174), by the fixed host (162), which is preferably a console. The message is sent using a GPRS transport protocol tunnel and includes an access point name (APN). The message requests (455) an Internet Protocol address relating to the APN, from a database (410). The method includes transmitting (460, 465) the Internet Protocol address from said database to the fixed host (162), and the fixed host (162) initiates a communication session (425) with the communication network (350) using the Internet Protocol address. A communication system and fixed host for use in the method are also provided. In this manner, a fixed host such as a console is able to obtain IP address information without requiring maintaining two (or multiple) IP addresses belonging to two (or multiple) different IP spaces that the fixed host communicates with.
Abstract:
A method of communicating information in a communication system wherein a fixed host (162) is operably coupled to a communication network (350) via a gateway general packet radio server (GPRS) service node (GGSN) (174). The method includes the steps of transmitting (450) a message to the GGSN (174), by the fixed host (162), which is preferably a console. The message is sent using a GPRS transport protocol tunnel and includes an access point name (APN). The message requests (455) an Internet Protocol address relating to the APN, from a database (410). The method includes transmitting (460, 465) the Internet Protocol address from said database to the fixed host (162), and the fixed host (162) initiates a communication session (425) with the communication network (350) using the Internet Protocol address. A communication system and fixed host for use in the method are also provided. In this manner, a fixed host such as a console is able to obtain IP address information without requiring maintaining two (or multiple) IP addresses belonging to two (or multiple) different IP spaces that the fixed host communicates with.
Abstract:
A method of communicating information in a communication system wherein a fixed host (162) is operably coupled to a communication network (350) via a gateway general packet radio server (GPRS) service node (GGSN) (174). The method includes the steps of transmitting (450) a message to the GGSN (174), by the fixed host (162), which is preferably a console. The message is sent using a GPRS transport protocol tunnel and includes an access point name (APN). The message requests (455) an Internet Protocol address relating to the APN, from a database (410). The method includes transmitting (460, 465) the Internet Protocol address from said database to the fixed host (162), and the fixed host (162) initiates a communication session (425) with the communication network (350) using the Internet Protocol address. A communication system and fixed host for use in the method are also provided. In this manner, a fixed host such as a console is able to obtain IP address information without requiring maintaining two (or multiple) IP addresses belonging to two (or multiple) different IP spaces that the fixed host communicates with.
Abstract:
A mobile communication system (100) includes an infrastructure (121) including at least a first base transceiver station (123) and a plurality of mobile stations (101, 103), wherein each of the mobile stations is operable to detect interference by jamming to a signal sent on a downlink channel by the first base transceiver station and, when it determines that such interference exists, to send a notification message to the infrastructure. Also described is a mobile station (101) a base transceiver station (123) and a method (300, 400) of operation in the system 100.
Abstract:
A wireless communications network (100) comprising a plurality of sites, each of which is served by a base transceiver station (102, 106, 110, 114, 118, 122, 126, 130). The base transceiver stations (102, 106, 110, 114, 118, 122, 126, 130) are connected with other elements of infrastructure (134-142) and at least one of said base transceiver stations (102) comprises means (104) for determining its geographical location. Said base transceiver station (102) is adapted to be moved from a first geographical location to a second geographical location. A first database (146) is configured to store location data of said base transceiver stations (102, 106, 110, 114, 118, 122, 126, 130). The network (100) further comprises a controller (144) configured to receive location data from the at least one base transceiver station (102) and from the first database (146) and to determine adjacency of sites.
Abstract:
A data communication system (100), which is capable of supporting multicast data delivery, comprises a router (110) for routeing at least one data packet between two or more networks (116, 118). The router (110) comprises a processor (210) to receive and decode at least one multicast data packet and translate a multicast address of the decoded at least one multicast data packet into one or more unicast addresses. In this manner, the provision of a processor to translate a multicast address of the decoded at least one multicast data packet into one or more unicast addresses allows a simple unicast-capable host to receive and deal with multicast addressed packets in contrast to requiring all hosts being multicast-capable. Furthermore, it allows reuse of legacy equipment (i.e. unicast-only hosts can still be used in a multicast environment).
Abstract:
A data communication system (100), which is capable of supporting multicast data delivery, comprises a router (110) for routeing at least one data packet between two or more networks (116, 118). The router (110) comprises a processor (210) to receive and decode at least one multicast data packet and translate a multicast address of the decoded at least one multicast data packet into one or more unicast addresses. In this manner, the provision of a processor to translate a multicast address of the decoded at least one multicast data packet into one or more unicast addresses allows a simple unicast-capable host to receive and deal with multicast addressed packets in contrast to requiring all hosts being multicast-capable. Furthermore, it allows reuse of legacy equipment (i.e. unicast-only hosts can still be used in a multicast environment).
Abstract:
A method of controlling location information of subscribers 210, 212, 222 in a wireless, ad-hoc communications network 200. The network 200 comprises a plurality of nodes (base stations) 204, 216, 226 wherein each of the nodes has a Visitor Location Register (VLR) 208, 220, 230 and at least a portion of the nodes are provided with Home Location Registers (HLRs) 206, 218 228. When an operation of a first node 216 is to be reconfigured, for example, due to the addition of a new node or disconnection or movement of the first node 216, at least a part of the records from a first HLR 218 assigned to the first node 216 is transferred to at least one of the other nodes 226 of the network 200. The transfer is preferably controlled by a control unit which selects the target node(s) 226 and creates a back-up copy of the first HLR 218 which can be used if an error occurs during the transfer. Depending on circumstances, all or only part of the HLR records can be transferred and the transferred records can be assigned to a new HLR at the target node(s), which may or may not already have a HLR, or merged with records in a HLR already at the target node(s).
Abstract:
A mobile communication system (100) includes an infrastructure (121) including at least a first base transceiver station (123) and a plurality of mobile stations (101, 103), wherein each of the mobile stations is operable to detect interference by jamming to a signal sent on a downlink channel by the first base transceiver station and, when it determines that such interference exists, to send a notification message to the infrastructure.
Abstract:
A method of controlling location information of subscribers (210, 212, 222) in a wireless, ad-hoc communications network (200). The network (200) comprises a plurality of nodes (204, 216, 226), wherein at least portion of said nodes are provided with Home Location Registers (HLRs) (206, 218, 228) and each of said nodes (204, 216, 226) has a Visitor Location Register (VLR) (208, 220, 230). When an operation of a first node (216) is to be reconfigured at least a part of records from a first HLR (218) assigned to said first node (216) are transferred to at least one of the other nodes (226) of the network (200).