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AssigneeAlcatel
InventorsEric Landes, Gerard Authie, Fabienne Roussel, Jean-Francois Ereau
Estimating the term…
A method of planning communication links in a telecommunication system comprising a plurality of cells inside each of which is a ground station, in which system communications are effected via the ground stations and relay equipment carried by a constellation of satellites. Each of the satellites has a plurality of antennas and each of the antennas is adapted to remain pointed toward a ground station. Continuity of communications for each ground station is assured by switching the communications from one satellite to another satellite. For planning communication links over a particular programming time, graphs of intervals for the ground stations are used in which each node of a graph is an interval of potential use of equipment on board a satellite and each line is a pair of intervals having portions overlapping in time.
A method of planning communication links in a telecommunication system comprising a plurality of cells inside each of which is a ground station, in which system communications are effected via said ground stations and relay equipment carried by a constellation of satellites, each of said satellites has a plurality of antennas and each of said antennas is adapted to remain pointed toward a ground station when said satellite is in view of said ground station, continuity of communications for each ground station is assured by switching said communications from said equipment of one satellite to said equipment of another satellite, and:
A method of planning a set N of requests for services competing for the allocation of M resources with identical characteristics, wherein each service i has to be rendered continuously over a time interval included in a period, said requests for services are divided into groups, each service is rendered by the use of an undifferentiated resource, which resources can render the service i during predefined time intervals known as intervals of potential use, said resources are divided into subsets, a resource is able to render only one service at a time, the requests for services of the same group cannot be rendered by resources belonging to the same subset, the passage from the use of one resource to the next necessitates the simultaneous use of two resources during a minimum duration, a released resource cannot be reused immediately, to determine sequences of resources whose use guarantees at least two continuous services over said period, a graph of intervals is determined for each request for service, each node consists of an interval of potential use of a resource and each line consists of a handover from one resource to another, and, for each request for service, said disjoint node paths are determined in said graph.
Dependencies are inferred from the claim text.