Patent ID: 9083764
Filing Date: 2015-07-14
Classification: G06F,H04L

Abstract:
1. A content caching device, comprising: a request service unit configured to receive a content request message from a user terminal; a content storage unit configured to store contents, and including a short-term storage unit and a long-term storage unit; and a control unit configured to calculate a priority value of the requested content based on a number of requests or a latest request information of the requested content, control the requested content to be stored in the short-term storage unit, based on the number of requests or the latest request information of the requested content, wherein the number of requests and the latest request information are calculated based on an identifier of the requested content, which is included in the content request message and a received time of the content request message, and control the requested content to be transferred to the long-term storage unit from the short-term storage unit so that the requested content is stored in the long-term storage unit, based on a storing time period of the requested content in the short-term storage unit. Wherein the priority value (P i ) of the requested content (i) is calculated by the following Equation 1: Wherein n