摘要:
LAN emulation in a moving network environment is disclosed. An emulated LAN encompassing a number of moving networks is formed by means of a set of layer 2 tunnels that interconnect a home agent with mobile routers in the moving networks. The home agent and the mobile routers are arranged to perform layer 2 forwarding over the layer 2 tunnels in order to form the emulated LAN. The layer 2 tunnels can be established in a number of alternative ways. The moving networks that are part of the emulated LAN may move, i.e. change their points of attachment to the network infrastructure, in a dynamic fashion without disrupting the function of the emulated LAN.
摘要:
The basic concept of the present invention is to utilize the terminal as an auxiliary information collector in networks where the regular network-based information collection is not possible and/or for providing information that complements the information that the network-based Access Awareness Entity collects by itself. The terminal collects information related to the access network directly, through retrieval of explicitly available information, and indirectly, through measurements and statistics. The collected information is delivered to the network-based Access Awareness Entity.
摘要:
The basic concept of the present invention is to utilize the terminal as an auxiliary information collector in networks where the regular network-based information collection is not possible and/or for providing information that complements the information that the network-based Access Awareness Entity collects by itself. The terminal collects information related to the access network directly, through retrieval of explicitly available information, and indirectly, through measurements and statistics. The collected information is delivered to the network-based Access Awareness Entity.
摘要:
LAN emulation in a moving network environment is disclosed. An emulated LAN encompassing a number of moving networks is formed by means of a set of layer 2 tunnels that interconnect a home agent with mobile routers in the moving networks. The home agent and the mobile routers are arranged to perform layer 2 forwarding over the layer 2 tunnels in order to form the emulated LAN. The layer 2 tunnels can be established in a number of alternative ways. The moving networks that are part of the emulated LAN may move, i.e. change their points of attachment to the network infrastructure, in a dynamic fashion without disrupting the function of the emulated LAN.
摘要:
The present invention relates to prefix management in a moving network comprising a first mobile router which is assigned a first prefix for use when passing traffic to and from a home agent with which the first mobile router is associated, and a second mobile router. The present invention relates to methods and arrangements in the first mobile router, the second mobile router and the home agent for delegating the right to use said first prefix to said second mobile router in a secure manner by means of first and second authentication information that may be compared to verify that the second mobile router has the right to use the first prefix.
摘要:
The present invention relates to moving networks in communication systems. An object of the invention is to provide moving network nodes (205, 206) in a moving network (201) with the ability to simultaneously access several external access networks (211, 212, 213) accessible by different mobile routers (204, 207) such that a data packet directed to an address external to the moving network can be sent from a moving network node via any of the mobile routers (204, 207) and via a tunnel setup in any of the simultaneously accessible external accesses to a home agent (216) in a home network (215) of the mobile router. This is achieved by synchronizing between the mobile routers data regarding the external accesses of each mobile router, and, when a data packet is received at a first mobile router (204), the first mobile router selects external access based on the synchronized external access information, information in the data packet and optionally also based on access selection policies. If a selected access belongs to e.g. a second mobile router (207), the packet is forwarded from the first mobile router to the second mobile router before it is sent to the home agent (215) via the tunnel setup through the selected access (211).
摘要:
The present invention relates to a method, a protocol and a control unit for managing devices in a Personal Area Network (PAN) such that a user of the PAN can use one of his devices and take advantage of services residing in any of the other devices in the PAN. The devices in the PAN are defined as either PAN controller devices or PAN auxiliary devices depending on if the devices have user interfaces suitable for controlling a PAN. When the PAN is managed according to the invention, the PAN controller devices and the PAN auxiliary devices communicate with each other via short-range communication means to exchange each other's PAN related information such that PAN related information is synchronized in the network. At least the PAN controller devices store received updated PAN related information from the other PAN participants such that the user can see an updated picture of the PAN on the PAN user interfaces. Any of the PAN controller devices can then be used to control the other PAN participants via commands and messages of the invention.
摘要:
The object of the invention is to achieve a solution for managing the use of simultaneously accessible access resources (211, 212, 213) connecting a mobile router (204) of a mobile network (201) and a home agent (216) in a home network (215) of the mobile router (204) by means of a tunnel in each access resource (211, 212, 213), such that it is controlled which access resource a data packet travelling in any direction between the mobile router (204) and the home agent (216) is using. This is achieved by having the mobile router (204) controlling the use of the access resources (211, 212, 213) both for packets sent in the direction to the home agent (216) and for packets sent from the home agent to the mobile router (204). For this reason, the mobile router classifies a data packet that is to be sent to the home agent based on information in the packet and selects an access resource for sending the packet based on the classification. The mobile router also sends implicit or explicit instructions to the home agent regarding how the packets should be routed from the home agent to the mobile router.
摘要:
The present invention relates to arrangements providing a solution for maintaining prefix consistency in dynamic (splitting and merging) moving networks and reducing the negative consequences of splits and mergers.
摘要:
The present invention relates to moving networks in communication systems. An object of the invention is to provide moving network nodes (205, 206) in a moving network (201) with the ability to simultaneously access several external access networks (211, 212, 213) accessible by different mobile routers (204, 207) such that a data packet directed to an address external to the moving network can be sent from a moving network node via any of the mobile routers (204, 207) and via a tunnel setup in any of the simultaneously accessible external accesses to a home agent (216) in a home network (215) of the mobile router. This is achieved by synchronizing between the mobile routers data regarding the external accesses of each mobile router, and, when a data packet is received at a first mobile router (204), the first mobile router selects external access based on the synchronized external access information, information in the data packet and optionally also based on access selection policies. If a selected access belongs to e.g. a second mobile router (207), the packet is forwarded from the first mobile router to the second mobile router before it is sent to the home agent (215) via the tunnel setup through the selected access (211).