Variable sub-packet lengths for telegram splitting in networks with low power consumption

Patent metadata

Field	Value
Publication number	US-11516703-B2
Application number	US-201916387417-A
Country	US
Kind code	B2
Filing date	Apr 17, 2019
Priority date	Oct 24, 2016
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

Embodiments provide a transfer method for transferring data of variable length using a fixedly specified number of sub-data packets to which the data of variable length is distributed.

First claim

The invention claimed is:

1. A data transmitter for transmitting data of variable length, wherein the data transmitter is configured to distribute the data of variable length to a specified number of sub-data packets and to transmit the sub-data packets;
wherein the data of variable length comprises payload data;
wherein a number of symbols of the individual sub-data packets depends on a length of the data of variable length,
wherein a temporal distance between synchronization sequences of immediately subsequent sub-data packets is constant regardless of a length of the data of variable length.

2. The data transmitter according to claim 1 , wherein the data transmitter is configured to distribute the data of variable length regardless of its length always to the same number of sub-data packets.

3. The data transmitter according to claim 1 , wherein the data transmitter is configured to transmit the sub-data packets with a temporal distance depending on the length of the data of variable length so that a temporal distance between specified regions of the sub-data packets is constant regardless of a length of the data of variable length.

4. The data transmitter according to claim 1 , wherein the data transmitter is configured to provide at least a part of the sub-data packets with synchronization sequences.

5. The data transmitter according to claim 1 , wherein the data transmitter is configured to provide at least a part of the sub-data packets with sub-synchronization sequences.

6. The data transmitter according to claim 5 , wherein the data transmitter is configured to transmit the sub-data packets with a temporal distance depending on the length of the data of variable length so that a temporal distance between the synchronization sequences of the sub-data packets is constant regardless of a length of the data of variable length.

7. The data transmitter according to claim 1 , wherein the data comprises core data and extension data, wherein the core data comprises a fixed length and the extension data comprises a variable length.

8. The data transmitter according to claim 7 , wherein the data transmitter is configured to provide the core data with signaling information for signaling the length of the extension data.

9. The data transmitter according to claim 7 , wherein the data transmitter is configured to distribute the core data to the sub-data packets such that the respective part of the core data is arranged adjacent to the (sub-)synchronization sequences in the sub-data packets.

10. The data transmitter according to claim 9 , wherein the data transmitter is configured to distribute the core data to the sub-data packets such that the respective part of the core data is arranged evenly in front of and behind the respective (sub-)synchronization sequences in the sub-data packets.

11. The data transmitter according to claim 9 , wherein the data transmitter is configured to distribute the extension data to the sub-data packets such that the respective part of the extension data is arranged adjacent to the respective part of the core data in the sub-data packets.

12. The data transmitter according to claim 11 , wherein the data transmitter is configured to distribute the extension data to the sub-data packets such that the respective part of the extension data is evenly arranged in front of and behind the respective part of the core data in the sub-data packets.

13. The data transmitter according to claim 1 , wherein the data transmitter is configured to divide the number of sub-data packets into at least two independent blocks of sub-data packets;
wherein the data transmitter is configured to divide the sub-data packets in such a way into the at least two blocks of sub-data packets that a first block of the at least two blocks of sub-data packets may be individually detected on the receiver side.

14. The data transmitter according to claim 13 , wherein the data transmitter is configured to provide the first block of sub-data packets with information about a second block of sub-data packets of the at least two blocks of sub-data packets.

15. The data transmitter according to claim 14 , wherein the information signals at least one of a length, a number of sub-data packets and a hopping pattern with which the sub-data packets are transmitted.

16. A data receiver for receiving data of variable length, wherein the data receiver is configured to receive a specified number of sub-data packets to which the data of variable length is distributed;
wherein the data of variable length comprises payload data;
wherein a number of symbols of the individual sub-data packets depends on a length of the data of variable length;
wherein a temporal distance between synchronization sequences of immediately subsequent sub-data packets is constant regardless of a length of the data of variable length.

17. The data receiver according to claim 16 , wherein the data of variable length regardless of its length is always distributed to an equal number of sub-data packets.

18. The data receiver according to claim 16 , wherein at least a part of the sub-data packets is provided with synchronization sequences;
wherein the data receiver is configured to detect the sub-data packets based on the synchronization sequences.

19. The data receiver according to claim 16 , wherein at least a part of the sub-data packets is provided with sub-synchronization sequences;
wherein the data receiver is configured to detect the sub-data packets based on the sub-synchronization sequences.

20. The data receiver according to claim 19 , wherein the temporal distance between the sub-synchronization sequences is constant and/or is known to the data receiver.

21. The data receiver according to claim 16 , wherein the data of variable length comprises core data and extension data, wherein the core data comprises a fixed length and the extension data comprises a variable length.

22. The data receiver according to claim 21 , wherein the core data is provided with signaling information for signaling the length of the extension data;
wherein the data receiver is configured to receive the extension data using the signaling information, or to extract them from the sub-data packets.

23. The data receiver according to claim 21 , wherein the core data is distributed to the sub-data packets such that the respective part of the core data is arranged adjacent to the (sub-)synchronization sequences in the sub-data packets.

24. The data receiver according to claim 23 , wherein the core data is distributed to the sub-data packets such that the respective part of the core data is evenly arranged in front of and behind the respective (sub-)synchronization sequence in the sub-data packets.

25. The data receiver according to claim 21 , wherein the extension data is distributed to the sub-data packets such that the respective part of the extension data is arranged adjacent to the respective part of the core data in the sub-data packets.

26. The data receiver according to claim 25 , wherein the extension data is distributed to the sub-data packets such that the respective part of the extension data is evenly arranged in front of and behind the respective part of the core data in the sub-data packets.

27. The data receiver according to claim 21 , wherein the core data is distributed to the sub-data packets depending on lengths of the (sub-) synchroniz

Assignees

• Fraunhofer Ges Forschung
• Univ Friedrich Alexander Er

Inventors

• Kilian Gerd
• Bernhard Josef
• Robert joerg
• Kneissl Jakob
• Wechsler Johannes
• Ereth Stefan

Classifications

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04W28/065 Primary

  using assembly or disassembly of packets · CPC title

• H04L1/0041

  Arrangements at the transmitter end · CPC title

• H04W52/0219

  where the power saving management affects multiple terminals · CPC title

• H04L1/0007 Primary

  by modifying the frame length · CPC title