Patent ID: 8588141
Filing Date: 2013-11-19
Classification: H04W

Abstract:
1. A network controller comprising: a terminal management section that stores information with respect to a terminal that joins a delivery service provided in each cell in a context that serves to manage the information with respect to the terminal; a terminal counting section that counts the number of terminals that joins said delivery service in said each cell on the basis of each service using said context stored in said terminal management; and a bearer determination section that determines whether to use a point-to-point bearer or a point-to-multipoint bearer for said delivery service in said each cell based on said number of terminals counted by said terminal counting section, wherein said terminal counting section counts the number of in-context terminals that is the number of terminals recorded in said context as terminals that join said delivery service in said cell, and wherein if said number of in-context terminals counted by said terminal counting section is equal to or greater than a first threshold, said bearer determination section decides to use the point-to-multipoint bearer for said delivery service in said cell, and wherein said network controller further comprises: an inquiring section that makes an inquiry to which a predetermined response probability has been set up and that asks whether or not to join said delivery service to a terminal that cannot be counted in a cell to which the terminal belongs based on said context of said terminal management section if said bearer determination section determines that the number of in-context terminals counted by said terminal counting section is smaller than said first threshold, wherein said terminal management section updates said context based on a response from said terminal to an inquiry from said inquiring section, and wherein said bearer determination section determines whether to use the point-to-point bearer or the point-to-multipoint bearer for said delivery service using the number of in-context terminals based on said context that has been updated.