Method and System for Utilizing Spectrum Data in a Cognitive Wireless Access System

摘要

The invention relates to a cognitive wireless communication system where a wireless terminal is allowed to utilize in channel selection process both licenced bands and unlicensed bands that are available. The invention relates also to a method and computer program for allocating a transmission channel for a wireless terminal either from licenced or unlicensed bands in a cognitive radio system by a resource management server. The utilized spectrum data is gathered by spectrum sensing from databases and control channels and it is saved in a database. A transmission channel to a wireless terminal is allocated by the resource management server by utilizing gathered short term and long term spectrum data.”

主权项

1. A method for allocating a transmission channel for a wireless data processing device by a resource managing server, the method comprising:
receiving a service request from a wireless data processing device; checking quality of service (QoS) requirements of the received service request; checking bandwidth of the received service request; determining if at least one transmission channel of the available unlicensed bands has enough bandwidth for the requested service; checking occupancy status of the transmission channels having the required bandwidth; and determining if at least one transmission channel with the required bandwidth and the allowable occupancy status is found,wherein the method further comprises:
checking idle time statistics of all transmission channels having the required bandwidth and the allowable occupancy status; determining if at least one transmission channel with the required bandwidth, the allowable occupancy status and the allowable idle time status is found, and; allocating the found transmission channel to the requested service.