Generation of channel access patterns for mutually uncoordinated networks

Patent metadata

Field	Value
Publication number	US-11700032-B2
Application number	US-202017127188-A
Country	US
Kind code	B2
Filing date	Dec 18, 2020
Priority date	Jun 22, 2018
Publication date	Jul 11, 2023
Grant date	Jul 11, 2023

Abstract

Proposed is a controller for a participant of a communication system, wherein the communication system wirelessly communicates in a frequency band that is used for communication by a plurality of communication systems, wherein the controller is configured to identify a channel access pattern, wherein the channel access pattern indicates a frequency hop-based and/or time hop-based occupancy of the frequency band that is usable for the communication of the communication system, wherein the controller is configured to identify the channel access pattern as a function of individual information of the communication system and as a function of a state of a numerical sequence generator for generating a numerical sequence or a number of a numerical sequence.

First claim

The invention claimed is:

1. A base station of a communication system, wherein the communication system wirelessly communicates in a frequency band that is used for communication by a plurality of communication systems,
wherein the base station is configured to transmit a signal, wherein the signal comprises information about a channel access pattern, wherein the channel access pattern indicates a frequency hop-based and/or time hop-based occupancy of the frequency band that is usable for the communication of the communication system, wherein the information describes a state of a numerical sequence generator for generating a numerical sequence, wherein the numerical sequence determines the channel access pattern,
wherein the base station is configured to communicate with a participant of the communication system by using a real subset of resources determined by the channel access pattern.

2. The base station according to claim 1 , wherein the channel access pattern differs from another channel access pattern on a basis of which at least one other communication system of a plurality of other communication systems accesses the frequency band.

3. The base station according to claim 1 , wherein the base station is configured to operate uncoordinatedly with respect to other communication systems.

4. The base station according to claim 1 ,
wherein the base station is configured to emit the signal with the information about the channel access pattern multiple times,
wherein the information about the channel access pattern transferred with consecutive emissions of the signal describes different states of the numerical sequence generator or different numbers of the numerical sequence.

5. The base station according to claim 4 , wherein the information transferred with the emissions of the signal describes only a subset of the states of the numerical sequence generator or of the numbers of the numerical sequence.

6. The base station according to claim 1 ,
wherein the information about the channel access pattern is the state of the numerical sequence generator or information derived therefrom, or
wherein the information about the channel access pattern is the number of the numerical sequence or information derived therefrom.

7. The base station according to claim 1 , wherein the base station is configured to identify the channel access pattern as a function of the state of the numerical sequence generator or of a number of the numerical sequence derived from the state of the numerical sequence generator.

8. The base station according to claim 7 ,
wherein states of the numerical sequence generator following the state of the numerical sequence generator are identifiable on a basis of the state of the numerical sequence generator,
wherein the base station is configured to identify the channel access pattern as a function of the following states of the numerical sequence generator or following numbers of the numerical sequence derived therefrom.

9. The base station according to claim 1 , wherein the base station is configured to identify the channel access pattern as a function of individual information of the communication system.

10. The base station according to claim 9 , wherein the individual information of the communication system is intrinsic information of the communication system.

11. The base station according to claim 10 , wherein the intrinsic information of the communication system is a network-specific identifier.

12. The base station according to claim 11 , wherein the network-specific identifier is an identification of the communication system.

13. The base station according to claim 1 ,
wherein the base station is configured to map, by using a mapping function,
the state of the numerical sequence generator or a number of the numerical sequence derived from the state of the numerical sequence generator, or the number of the numerical sequence, and
individual information of the communication system onto time information and frequency information,

wherein the time information and the frequency information describe a resource of the channel access pattern.

14. The base station according to claim 13 , wherein the time information describes a time slot or a time slot index.

15. The base station according to claim 13 ,
wherein, when mapping the time information, the mapping function considers an activity rate of the communication system,
wherein the activity rate is specified before execution, or wherein the signal or a further signal transmitted by the base station comprises information about the activity rate.

16. The base station according to claim 15 ,
wherein, when mapping onto the time information, the mapping function considers different activity rates of the communication system so that the channel access pattern comprises regions of the different activity rates,
wherein the signal or the further signal comprises information about the different activity rates.

17. The base station according to claim 15 , wherein the base station is configured to dynamically adapt the activity rate as a function of a current or predicted utilization situation of the communication system.

18. The base station according to claim 14 , wherein, when mapping onto the time information, the mapping function adheres to a specified minimum distance between consecutive time slots or time slot indices of the channel access pattern.

19. The base station according to claim 13 , wherein the frequency information describes a frequency channel or a frequency channel index.

20. The base station according to claim 13 , wherein the frequency information describes a distance between consecutive frequency channels or frequency channel indices of the channel access pattern.

21. The base station according to claim 19 , wherein, when mapping onto the frequency information, the mapping function adheres to a specified minimum distance between consecutive frequency channels or frequency channel indices of the channel access pattern.

22. The base station according to claim 13 , wherein, when mapping onto the frequency information, the mapping function considers an interference-prone frequency channel or a range of interference-prone frequency channels of the frequency band so that the interference-prone frequency channel or the range of interference-prone frequency channels is not or less occupied by the channel access pattern.

23. The base station according to claim 13 , wherein the frequency information describes a bundling of frequency resources of the frequency band comprising at least two directly adjacent or spaced apart frequency channels or frequency channel indices.

24. The base station according to claim 1 ,
wherein the base station is configured to identify a pseudo random number R as a function of:
the state of the numerical sequence generator, or a number of the numerical sequence derived from the state of the numerical sequence generator, or the number of the numerical sequence, and
individual information of the communication system,

wherein the pseudo random number R determines the channel access pattern.

25. The base station according to claim 24 , wherein the base station is configured to identify a resource of the channel access pattern on a basis of the pseudo random number R.

26. The base station according to claim 1 , wherein the signal is a beacon signal.

27. The base sta

Assignees

• Fraunhofer Ges Forschung

Inventors

• Obernosterer Frank
• Meyer Raimund
• Kilian Gerd
• Bernhard Josef
• Wechsler Johannes
• Kneissl Jakob
• Ereth Stefan
• Robert Jörg

Classifications

• H04W76/11

  Allocation or use of connection identifiers · CPC title

• H04W72/0453

  Resources in frequency domain, e.g. a carrier in FDMA · CPC title

• H04W72/53

  based on regulatory allocation policies · CPC title

• H04B1/7143 Primary

  Arrangements for generation of hop patterns · CPC title

• H04L1/1642

  Formats specially adapted for sequence numbers · CPC title