Method, device and computer-readable medium of managing a clock circuit

Patent metadata

Field	Value
Publication number	US-11294335-B2
Application number	US-202016853948-A
Country	US
Kind code	B2
Filing date	Apr 21, 2020
Priority date	Apr 25, 2019
Publication date	Apr 5, 2022
Grant date	Apr 5, 2022

Abstract

Embodiments of the present disclosure provide a data buffering method, electronic device and computer-readable medium. The method includes receiving, at a first node of a network, time window information from a second node of the network, the time window information defining a time window when data is transmitted from the first node to the second node. The method further includes enabling a first clock circuit of the first node at least partly based on the time window information to provide a first clock signal for data transmission from the first node to the second node. Therefore, the power consumption at the first node can be effectively reduced.

First claim

I claim:

1. A method, comprising:
managing a clock circuit, comprising:
receiving, at a first node of a network, time window information from a second node of the network, the time window information defining a time window for transmitting data from the first node to the second node, wherein the time window information is using a first clock circuit for the transmitting data from the first node to the second node and a second clock circuit for transmitting data from the second node to the first node; and
enabling, at least partly based on the time window information, the first clock circuit of the time window information to provide a first clock signal for data transmission from the first node to the second node.

2. The method of claim 1 , wherein enabling the first clock circuit comprises:
determining whether there is data to be transmitted to the second node; and
according to a determination that there is data to be transmitted, enabling the first clock circuit at least partly based on the time window information.

3. The method of claim 1 , further comprising:
recovering a reference clock signal from data transmitted from the second node to the first node; and
generating the first clock signal based on the recovered reference clock signal.

4. The method of claim 3 , further comprising:
generating, based on the reference clock signal, a second clock signal using a second clock circuit, the second clock signal being used for data transmission from the second node to the first node, the second clock circuit being different from the first clock circuit.

5. The method of claim 1 , wherein the time window information indicates at least one of:
a reference point of the time window;
duration of the time window; and
relationship between the reference point and the duration.

6. The method of claim 1 , wherein receiving the time window information comprises:
receiving a control message transmitted from the second node; and
extracting the time window information from the control message.

7. The method of claim 1 , wherein the control message includes a bandwidth map field defining the time window.

8. The method of claim 1 , wherein the first node is an optical network unit and the second node is an optical line terminal.

9. An electronic device, comprising:
at least one processor; and
at least one non-transitory memory storing computer program codes,
wherein the computer program codes stored on the at least one non-transitory memory are executed by the at least one processor to cause the electronic device to:
receive, at a first node of a network, time window information from a second node of the network, the time window information defining a time window for transmitting data from the first node to the second node, wherein the time window information is using a first clock circuit for the transmitting data from the first node to the second node and a second clock circuit for transmitting data from the second node to the first node; and
enable, at least partly based on the time window information, the first clock circuit of the time window information to provide a first clock signal for data transmission from the first node to the second node.

10. The device of claim 9 , wherein the computer program codes are executed by the at least one processor to further cause the electronic device to:
determine whether there is data to be transmitted to the second node; and
according to a determination that there is data to be transmitted, enable the first clock circuit at least partly based on the time window information.

11. The device of claim 9 , wherein the computer program codes are executed by the at least one processor to further cause the electronic device to:
recover a reference clock signal from data transmitted from the second node to the first node; and
generate the first clock signal based on the recovered reference clock signal.

12. The device of claim 11 , wherein the computer program codes are executed by the at least one processor to further cause the electronic device to:
generate a second clock signal using a second clock circuit based on the reference clock signal, the second clock signal being used for data transmission from the second node to the first node, the second clock circuit being different from the first clock circuit.

13. The device of claim 9 , wherein the time window information indicates at least one of:
a reference point of the time window;
duration of the time window; and
relationship between the reference point and the duration.

14. The device of claim 9 , wherein the computer program codes are executed by the at least one processor to further cause the electronic device to:
receive a control message transmitted from the second node; and
extract the time window information from the control message.

15. The device of claim 9 , wherein the control message includes a bandwidth map field defining the time window.

16. The device of claim 9 , wherein the device is an optical network unit.

17. A non-transitory computer-readable medium with computer-executable instructions stored thereon, wherein the computer-executable instructions, when executed by one or more processors, cause the one or more processors to perform steps comprising:
providing for receiving, at a first node of a network, time window information from a second node of the network, the time window information defining a time window for transmitting data from the first node to the second node, wherein the time window information is using a first clock circuit for the transmitting data from the first node to the second node and a second clock circuit for transmitting data from the second node to the first node; and
enabling, at least partly based on the time window information, a first clock circuit of the time window information to provide a first clock signal for data transmission from the first node to the second node.

Assignees

• Nokia Solutions & Networks Oy

Inventors

• Wang Chunlin

Classifications

• G04F5/04 Primary

  using oscillators with electromechanical resonators {producing electric oscillations or timing pulses} · CPC title

• H03K5/1565

  the output pulses having a constant duty cycle · CPC title

• H03K5/135

  by the use of time reference signals, e.g. clock signals · CPC title

• H04Q2011/0086

  Network resource allocation, dimensioning or optimisation · CPC title

• H04Q11/0067 Primary

  Provisions for optical access or distribution networks, e.g. Gigabit Ethernet Passive Optical Network (GE-PON), ATM-based Passive Optical Network (A-PON), PON-Ring · CPC title