Method and apparatus for processing timestamp using signature information on physical layer
First Claim
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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.
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Abstract
A method and apparatus for processing a timestamp using signature information on a physical layer is provided. The timestamp processing terminal uses a pseudo-random binary sequence to assign signature information to a message which is to be sent to another terminal, and verifies the signature information on a physical layer. The signature information is used to identify the message as a sync message. Accordingly, it is possible to precisely process the timestamp.
19 Citations
15 Claims
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1. A timestamp processing terminal for performing synchronization with another terminal connected to a network, comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A timestamp processing method for performing synchronization with another terminal connected to a network, comprising:
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generating a pseudo-random binary sequence (PRBS); assigning signature information to a message, which is to be sent to the terminal, using the PRBS, wherein the signature information is used to identify the message as a sync message; and verifying the signature information on a physical layer, wherein assigning the signature information comprises; generating the signature information by adding the PRBS following a predetermined input bit; and assigning the signature information to a TLV field indicating type, length and value of the sync message. - View Dependent Claims (13, 14, 15)
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Specification