Patent ID: 8635371
Filing Date: 2014-01-21
Classification: H04J

Abstract:
1. A timestamp processing terminal for performing synchronization with another terminal connected to a network, comprising: a first timestamp processing unit configured to assign signature information to a message, which is to be sent to the terminal, using a pseudo-random binary sequence (PRBS) and to verify the signature information on a physical layer, wherein the signature information is used to identify the message as a sync message; and a second timestamp processing unit configured to identify if a message received from the terminal is a sync message by verifying on the physical layer if the PRBS is included in the message, wherein the first timestamp processing unit comprises: a PRBS generator configured to generate the PRBS; a signature information assigning unit configured to generate signature information including the PRBS and to assigns the signature information to a TLV field indicating type, length and value of the sync message; and a PRBS verifying unit configured to verify on the physical layer if a bitstream received from an upper layer includes the PRBS and, if the bitstream is verified as including the PRBS, to determine the bitstream as the sync message and perform timestamping.