Specific hopping patterns for repeated transmission and reception of data and methods for generating the same

Patent metadata

Field	Value
Publication number	US-11258477-B2
Application number	US-201916719906-A
Country	US
Kind code	B2
Filing date	Dec 18, 2019
Priority date	Jul 4, 2017
Publication date	Feb 22, 2022
Grant date	Feb 22, 2022

Abstract

In embodiments, data transmitters and data receivers use, in a first mode, a first hopping pattern and a second hopping pattern for a repeated transfer of data, and, in a second mode, a third hopping pattern for the single transfer of data, wherein the hopping patterns of the first mode and the second mode are different so that a collision probability in the repeated transmission of data by a further data transmitter in a respectively different mode may be decreased and the transmission reliability may therefore be increased.

First claim

The invention claimed is:

1. A data transmitter configured to, in a first mode, transmit data repeatedly using a first hopping pattern and a second hopping pattern;
wherein the data transmitter is configured to, in a second mode, transmit data once using a third hopping pattern;
wherein the hopping patterns of the first mode and the second mode are different so that hops of the hopping patterns of the first mode and hops of the hopping pattern of the second mode are differently distributed in at least one of time and frequency;
wherein the data transmitter is configured to select the first hopping pattern and the second hopping pattern from a first set of hopping patterns, and to select the third hopping pattern from a second set of hopping patterns;
wherein hopping patterns of the first set of hopping patterns and hopping patterns of the second set of hopping patterns are different.

2. The data transmitter according to claim 1 , wherein the data transmitter is configured to, in order to establish a connection to a data receiver, select at least one of the first hopping pattern, the second hopping pattern and the third hopping pattern from a third set of hopping patterns.

3. The data transmitter according to claim 1 , wherein the first hopping pattern and the second hopping pattern are shifted relative to each other in at least one of frequency and/or time, and wherein the first hopping pattern and the second hopping pattern are at least partially interleaved.

4. The data transmitter according to claim 1 , wherein the first hopping pattern and the second hopping pattern are different.

5. The data transmitter according to claim 1 , wherein the second hopping pattern is at least one of a frequency-shifted and time-shifted version of the first hopping pattern.

6. The data transmitter according to claim 5 , wherein the first hopping pattern and the second hopping pattern are the same and are only shifted in at least one of time and frequency.

7. The data transmitter according to claim 1 , wherein the data transmitter is configured to transmit the first hopping pattern and the second hopping pattern in different frequency bands.

8. The data transmitter according to claim 7 , wherein the data transmitter is configured to transmit the first hopping pattern or the second hopping pattern randomly in one of at least two different frequency bands.

9. The data transmitter according to claim 1 , wherein the data transmitter is configured to transmit the first hopping pattern and the second hopping pattern in at least partially overlapping frequency bands.

10. The data transmitter according to claim 1 , wherein the data transmitter is configured to determine a time offset between the first hopping pattern and the second hopping pattern in dependence on an operation parameter of the data transmitter.

11. The data transmitter according to claim 1 , wherein the data transmitter is configured to determine a frequency offset between the first hopping pattern and the second hopping pattern in dependence on an operation parameter of the data transmitter.

12. The data transmitter according to claim 10 , wherein the operation parameter of the data transmitter is an intrinsic parameter of the data transmitter itself.

13. The data transmitter according to claim 12 , wherein the intrinsic parameter of the data transmitter is addressing information, identification information, a quartz tolerance, a frequency offset or available transmission energy.

14. The data transmitter according to claim 10 , wherein the operation parameter of the data transmitter is a parameter assigned to the data transmitter.

15. The data transmitter according to claim 14 , wherein the parameter assigned to the data transmitter is an assigned frequency offset, an assigned time offset, a radio cell, a geographical position, a system time or a priority of the data transmitter or of the data.

16. The data transmitter according to claim 10 , wherein the operation parameter of the data transmitter is at least a part of payload data or error protection data.

17. The data transmitter according to claim 10 , wherein the operation parameter of the data transmitter is a random frequency offset or a random time offset.

18. The data transmitter according to claim 1 , wherein the first hopping pattern and the second hopping pattern are a frequency hopping pattern, a time hopping pattern or a combination of a frequency hopping pattern and a time hopping pattern, respectively.

19. The data transmitter according to claim 1 , wherein the data is a data packet, wherein the data transmitter is configured to divide the data packet into a plurality of sub-data packets, wherein each of the sub-data packets is shorter than the data packet;
wherein the data transmitter is configured to transmit the plurality of sub-data packets distributed in at least one of frequency and/or time according to the first hopping pattern, and to repeatedly transmit the same distributed in at least one of frequency and time according to the second hopping pattern.

20. The data transmitter according to claim 1 , wherein
the first hopping pattern and the second hopping pattern each,
or the third hopping pattern,

is a time hopping pattern, a frequency hopping pattern or a combination of the time hopping pattern and the frequency hopping pattern;
wherein the time hopping pattern is one of the following eight time hopping patterns comprising 24 hops each:

# of sub-data packets in the core frame SC

no.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

1
373
319
545
373
319
443
373
319
349
373
319
454
373
319
578
373
319
436
373
319
398
373
319

2
373
319
371
373
319
410
373
319

Assignees

• Fraunhofer Ges Forschung

Inventors

• Kneissl Jakob
• Bernhard Josef
• Kilian Gerd
• Wechsler Johannes
• Meyer Raimund
• Obernosterer Frank

Classifications

• H04L5/0044

  Allocation of payload; Allocation of data channels, e.g. PDSCH or PUSCH · CPC title

• H04L5/0012 Primary

  Hopping in multicarrier systems · CPC title

• H04B1/7136

  Arrangements for generation of hop frequencies, e.g. using a bank of frequency sources, using continuous tuning or using a transform · CPC title

• H04B1/715

  Interference-related aspects · CPC title

• H04B1/7143 Primary

  Arrangements for generation of hop patterns · CPC title