49 results about "Geographic routing" patented technology

A telecommunication system establishes location information concurrently with the set-up of a landline as a network address for delivering wireless-based subscription services. A location register in the wireless system defines a current network location where a respective subscriber is connected and a current geographic location where said respective subscriber is located. An access device is provided for coupling with a landline within the public switched telephone network, wherein the landline has a landline ID, and wherein a user terminal connected to the landline is associated with a fixed geographic location. A control channel transmits an electronic identification number of a subscriber and a location coordinate corresponding to the fixed geographic location from the access device to the location register during registration of the landline as the current network address of the user terminal. The subscriber receives location-based wireless services via the landline.

The invention discloses a prediction-based routing method at an intersection in a vehicle self-organizing network, and mainly solves the problem that when a packet is routed at the intersection, a link is unstable in the prior art. The scheme for implementing the method is that: when the packet arrives at a previous hop node of the intersection, the node predicts the next intersection to which the packet is transmitted; a weight of each adjacent intersection is calculated according to the density of adjacent road sections and a distance from the next intersection to a destination, and the intersection with the largest weight is selected as the next temporary destination for transmitting the packet; and when the packet is forwarded in a greedy mode in the road section, if the selected nodeis positioned in the boundary of the transmission range and is opposite to a driving direction of the transmitting node, a node secondarily nearest to the destination is selected, otherwise the packet is directly forwarded to the selected node. Compared with the geographic routing in city scenarios (GPCR) protocol and the greedy perimeter stateless routing for wireless networks in urban vehicularscenarios (GpsrJ+ protocol), the method has the advantages that: the transmission rate of the packet is increased, the transmission time delay of the packet is reduced, and the method can be applicable to the vehicle self-organizing network.

A method of providing access to telecommunication services involves receiving a routing information request for terminating a communication with a mobile station located within a visited geographic region, the routing information request including a directory number local to the visited geographic region. A subscriber identity associated with the received directory number is then dynamically selecting from an evaluation of a decision tree, the decision tree associating a reference directory number with a plurality of reference subscriber identities. Each reference subscriber identity is associated with a telecommunications service user, each user being registered to receive telecommunication services within a respective home geographic region, the home geographic region being different from the visited geographic region. The mobile station receives access to the telecommunication services within the visited geographic region via the selected subscriber identity.