Patent ID: 8126842

Claim:
A mobile node of a radio communication system having a network part and the mobile node, the network part having a network-copy of a database containing database records and database values of the database and the mobile node having a mobile-copy of the database containing database records and database values of the database, the database records and database values of the database of the network-copy and the mobile-copy of the database, respectively, correspond to each other when the network-copy and the mobile-copy of the database are in match with one another, said mobile node comprising: processing circuitry coupled to the mobile-copy database, said processing circuitry configured to: i) generate a first hash pursuant to a first hash technique of a first computational intensity and based upon the database values of the mobile-copy database, and communicate said first hash to the network part in a first message on a communications channel of the radio communication system, whereby an out of match condition between the mobile-copy database values and the network-copy database values is determined, ii) generate, upon a determination of an out of match condition between mobile-copy database values and network-copy database values, a second hash pursuant to a second hash technique of a second computational intensity and based upon the database records in the mobile-copy database, and communicate the entirety of said second hash to the network part in a second message on said communications channel, in which said second computational intensity is greater than said first computational intensity and requires a greater amount of communication channel capacity to communicate said second message than said first message, whereby an out of match condition between a record of the mobile-copy database records and a corresponding record of the network-copy database records is determined, and iii) retrieve the out of match database record from the mobile-copy database upon a determination of an out of match condition between said mobile-copy database record and said corresponding network-copy database record for communication to the network part, whereby the network-copy database records and the mobile-copy database records are matched to each other; wherein the radio communication system provides bi-directional data communications services to said mobile node, and wherein data is communicated from the mobile node to the network part by an up-link and, data is communicated from the network part to the mobile node by a down-link.