Granted Patent B2

US 12,199,744 · App. 18/055,148 · Granted Jan 14, 2025

Inventors: Gert Schedelbeck (Munich, DE); Thomas Heuken (Neufahrn, DE); Franz Josef Schäfer (Oberhaching, DE); Rainer Strobel (Munich, DE)

Assignee: MAXLINEAR, INC.

H04J14/0235H04Q11/0067

Abstract

Claims (51)

1. A method for receiving an upstream burst transmission, the method comprising:

obtaining, by one or more processors, information about a next upstream burst transmission, wherein the information includes a start time of the next upstream burst transmission;

determining, by the one or more processors, a set of settings based on the information; and

adjusting, by the one or more processors, a physical medium dependent (PMD) module based on the set of settings prior to receiving the next upstream burst transmission by the PMD module.

2. The method of claim 1 , wherein the PMD module is configured to derive the information about the next upstream burst transmission.

3. The method of claim 1 , wherein a transmission control (TC-MAC) module in communication with the PMD module is configured to derive the information about the next upstream burst transmission.

4. The method of claim 1 , wherein the information includes at least one of: a length of the next upstream burst transmission, an optical network unit (ONU) transmitting the next upstream burst transmission, an ending time of the next upstream burst transmission, or information related to performing a reset of settings.

5. The method of claim 4 , wherein the set of settings includes at least one of: an equalizer coefficient associated with the ONU, a phase locked loop (PLL) setting associated with the ONU, an analog gain control (AGC) setting associated with the ONU, a direct current (DC) offset setting associated with the ONU, a symbol rate, or a data rate.

6. The method of claim 1 , wherein obtaining the information includes:

monitoring, by the one or more processors, downstream data; and

analyzing, by the one or more processors, a framing sublayer (FS) frame in the downstream data.

7. The method of claim 6 , the method further comprising:

analyzing, by the one or more processors, first data in a bandwidth map field in the FS frame; and

analyzing, by the one or more processors, second data in a physical layer operations management maintenance, downstream (PLOAMd) field in the FS frame.

8. The method of claim 7 , wherein the first data in the bandwidth map field includes an allocation identifier (AllocID) associated with the next upstream burst transmission.

9. The method of claim 8 , the method further comprising:

determining, by the one or more processors, an optical network unit (ONU) transmitting the next upstream burst transmission based on the allocation identifier (AllocID) in the first data and allocation identifier (AllocID)-to-ONU relationship information in the second data.

10. The method of claim 9 , wherein the set of settings is associated with the ONU.

11. The method of claim 1 , the method further comprising:

allocating a setting register for a new ONU;

detecting a message from the new ONU during a quiet window; and

associating the allocated setting register with the new ONU.

12. The method of claim 11 , wherein the message includes a serial number of the new ONU.

13. The method of claim 1 , wherein obtaining the information includes:

obtaining the information from a transmission control (TC-MAC) module in communication with the PMD module.

14. A system comprising:

data processing hardware; and

memory hardware in communication with the data processing hardware, the memory hardware storing instructions that when executed on the data processing hardware cause the data processing hardware to perform operations comprising:

obtaining information about a next upstream burst transmission, wherein the information includes a start time of the next upstream burst transmission;

determining a set of settings based on the information; and

adjusting a physical medium dependent (PMD) module based on the set of settings prior to receiving the next upstream burst transmission by the PMD module.

15. The system of claim 14 , wherein the PMD module is configured to derive the information about the next upstream burst transmission.

16. The system of claim 14 , wherein a transmission control (TC-MAC) module in communication with the PMD module is configured to derive the information about the next upstream burst transmission.

17. The system of claim 14 , wherein the information includes at least one of: a length of then next upstream burst transmission, or an optical network unit (ONU) transmitting the next upstream burst transmission.

18. The system of claim 17 , wherein the set of settings includes at least one of: an equalizer coefficient associated with the ONU, a phase locked loop (PLL) setting associated with the ONU, an analog gain control (AGC) setting associated with the ONU, a direct current (DC) offset setting associated with the ONU, a symbol rate, or a data rate.

19. The system of claim 14 , wherein obtaining the information includes:

monitoring downstream data; and

analyzing a framing sublayer (FS) frame in the downstream data.

20. The system of claim 19 , the operations further comprising:

analyzing first data in a bandwidth map field in the FS frame; and

analyzing second data in a physical layer operations management maintenance, downstream (PLOAMd) field in the FS frame.

21. The system of claim 20 , wherein the first data in the bandwidth map field includes an allocation identifier (AllocID) associated with the next upstream burst transmission.

22. The system of claim 21 , the operations further comprising:

determining an ONU transmitting the next upstream burst transmission based on the allocation identifier (AllocID) in the first data and allocation identifier (AllocID)-to-ONU relationship information in the second data.

23. The system of claim 22 , wherein the set of settings is associated with the ONU.

24. The system of claim 14 , the operations further comprising:

allocating a setting register for a new ONU;

detecting a message from the new ONU during a quiet window; and

associating the allocated setting register with the new ONU.

25. The system of claim 24 , wherein the message includes a serial number of the new ONU.

26. The system of claim 14 , wherein obtaining the information includes: obtaining the information from a transmission control (TC-MAC) module in communication with the PMD module.

Assignments (2)

Continuity (2)

References Cited (15)