Distributing Information

摘要

Method and communication system for distributing information relating to a set of networks from a first node to a second node of the communication system, wherein a set of identifiers of respective networks which belong to the set of networks is stored at the first node. Hash values are generated at the first node for the identifiers in the set of identifiers using a hash function. The generated hash values are transmitted from the first node to the second node. The second node determines an identifier of a particular network which is available for communicating with the second node. The second node generates a hash value for the identifier of the particular network using the hash function. The second node then compares the hash value of the identifier of the particular network generated at the second node with the hash values received at the second node from the first node to thereby determine whether the particular network belongs to said set of networks.

主权项

1. A node of a communication system for processing information relating to a set of networks, the node being a user terminal in the communication system, the node capable of operations comprising:
receiving, from another node of the communication system, hash values for identifiers of networks which belong to the set of networks, said hash values being generated using a hash function, the other node being a server of the communication system, the receiving occurring in advance of the second node attempting to connect to a particular network of the set of networks; determining an identifier of a particular network which is available for communicating with the node; generating a hash value for the identifier of the particular network using said hash function; comparing the hash value of the identifier of the particular network with the hash values received from the other node to thereby determine whether the particular network belongs to said set of networks; and joining the particular network in response to the particular network being one of the set of networks.