Patent ID: 7660309
Filing Date: 2010-02-09
Classification: H04L,H04N

Abstract:
1. A method of implementing a storage function in a passive optical network PON system including an optical distribution network ODN, an optical line terminal OLT, and at least one optical network unit ONU, comprising: a data determination step of determining, from among data sent from the OLT to the optical network unit, the data requiring storage; a storage step of storing said data requiring storage in a storage device installed in said optical network unit; a judging step of judging whether a terminal connected to the ONU has transmitted a request with respect to said data, and in case no request has yet been sent with respect to said data, said data is stored in the storage device; and a sending step wherein if a request is sent with respect to said data, said data is sent directly to the terminal without storing said data in the storage device.