Time synchronous pluggable transceiver
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsQingfeng Yang, Francesco Pasio, Zhendong Lei, Stefano Ruffini
Life of this patent
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Abstract
A pluggable transceiver module (200) comprising a line receiver (208) connected to a unit interface transmitter (202), a line transmitter (206) connected to a unit interface receiver (204) and a timestamp counter (210) adapted to generate counter values based on clock signals received from an external source and to send the counter values to the line transmitter (206) and to the line receiver (208). The line transmitter (206) and the line receiver (208) are adapted to associate timing packets in a stream of data packets transmitted and received by the pluggable transceiver module (200) with counter values output by the timestamp counter (210).
Claims15
A pluggable transceiver module comprising:
- a line receiver connected to a unit interface transmitter;
- a line transmitter connected to a unit interface receiver;
- a timestamp counter adapted to generate counter values based on clock signals received from an external source and to send the counter values to the line transmitter and to the line receiver, wherein the external source of the clock signals is external to the pluggable transceiver and internal to a node on which the pluggable transceiver is installed, wherein the line transmitter and the line receiver are adapted to associate timing packets in a stream of data packets transmitted and received by the pluggable transceiver module with the counter values generated by the timestamp counter.
A method of synchronising time in a pluggable transceiver module comprising:
- generating in the pluggable transceiver module counter values based on timing signals received from an external source, wherein the external source of the timing signals is external to the pluggable transceiver module and internal to a node on which the pluggable transceiver module is installed;
- sending the counter values to a line receiver and a line transmitter of the pluggable transceiver module;
- associating timing packets received from and transmitted to a network with the generated counter values.
Dependencies are inferred from the claim text.