A policy server assigns an identifier to each of a plurality of policy rules in each of which condition and action are described and transmits these policy rules to a network node. When transmitting new policy rules to the network node as additional ones, the server detects policy rules that depend on...http://www.google.de/patents/US20010039576?utm_source=gb-gplus-sharePatent US20010039576 - Network policy transmission method from policy server to network node
