Samsung Electronics Cp., Ltd. Patent applications |
Patent application number | Title | Published |
20090193117 | SYSTEM AND METHOD FOR PRESENCE SUBSCRIPTION DELEGATION - A system and method for presence subscription delegation in a multi-domain environment in an SIP-based presence system are provided, in which a watcher transmits a presence subscription delegation request to a presence subscription delegation handler of a delegating user, the presence subscription delegation handler performs delegation authorization for the received presence subscription delegation request according to a presence delegation authorization rule of the delegating user being authorization information about presence subscription delegation, and a presence server of a presentity receives the presence subscription delegation request from the presence subscription delegation handler, performs presence authorization according to a presence authorization rule of the presentity, and transmits presence information about the presentity to the watcher via the presence subscription delegation handler. | 07-30-2009 |
20090010165 | APPARATUS AND METHOD FOR LIMITING PACKET TRANSMISSION RATE IN COMMUNICATION SYSTEM - In a communication system, a token manager corresponding to a generated or arriving packet is determined, tokens corresponding to a target transmission rate limit are generated, and a corresponding packet is at least one of dropped and provided in consideration of the amount of the tokens created and the size of the generated packet. Through such a method, a packet transmission rate can be limited to the target transmission rate. In addition, when there is traffic of various service classes, service can be differentially provided according to the priorities of the service classes. | 01-08-2009 |