Wireless distributed learning system including abnormal terminal and method of operation thereof

Patent metadata

Field	Value
Publication number	US-11659437-B2
Application number	US-202117462740-A
Country	US
Kind code	B2
Filing date	Aug 31, 2021
Priority date	May 13, 2021
Publication date	May 23, 2023
Grant date	May 23, 2023

Abstract

An electronic device is provided. The electronic device includes a communication circuit and a processor. The processor may be configured to obtain information on the number of predicted abnormal terminals, allocate different resources respectively to a plurality of terminal groups, wherein the number of the plurality of terminal groups is greater than the number of predicted abnormal terminals, obtain learning data of each of the plurality of terminal groups, and identify a final terminal group among the plurality of terminal groups, based on the learning data.

First claim

What is claimed is:

1. An electronic device comprising:
transceiver; and
at least one processor operably connected to the transceiver, wherein the at least one processor is configured to:
obtain information on a number (N) of predicted abnormal terminals,
allocate different resources respectively to a plurality of terminal groups, wherein a number (N) of the plurality of terminal groups is greater than the number (N) of predicted abnormal terminals,
obtain learning data of each of the plurality of terminal groups,
estimate reference learning data,
calculate difference values between the reference learning data and the learning data of each of the plurality of terminal groups,
identify a terminal group having a smallest difference value among the difference values, and
identify a final terminal group among the plurality of terminal groups, based on the terminal group.

2. The electronic device of claim 1 , wherein the at least one processor is further configured to update a system based on the learning data of the final terminal group.

3. The electronic device of claim 1 , wherein the at least one processor is further configured to identify whether the smallest difference value of the final terminal group is less than a threshold.

4. The electronic device of claim 3 , wherein the at least one processor is further configured such that, if the smallest difference value of the final terminal group is less than the threshold, a system is updated based on the learning data of the final terminal group.

5. The electronic device of claim 3 , wherein the at least one processor is further configured such that, if the smallest difference value of the final terminal group is greater than or equal to the threshold, a system is not updated based on the learning data of the final terminal group.

6. The electronic device of claim 1 , wherein the at least one processor is further configured to:
receive a synchronization signal from at least one terminal, wherein the at least one terminal is included in any one of the plurality of terminal groups, and
estimate a channel between the at least one terminal and the electronic device, based on the synchronization signal.

7. The electronic device of claim 6 , wherein the at least one processor is further configured to:
allow the synchronization signal to include information on a resource required in the at least one terminal,
determine a maximum amount of a resource of each of the plurality of terminal groups, based on the information, and
transmit information on the maximum amount of the resource of each of the plurality of terminal groups to the at least one terminal.

8. The electronic device of claim 1 , wherein, in order to allocate the different resources to each of the plurality of terminal groups, the at least one processor is further configured to allocate the different resources to each of the plurality of terminal groups, based on at least one of an orthogonal frequency-division multiplexing (OFDM) scheme, a frequency division multiplexing (FDM) scheme, and a time division multiplexing (TDM) scheme.

9. A method performed by an electronic device, the method comprising:
obtaining information on a number of predicted abnormal terminals;
allocating different resources respectively to a plurality of terminal groups, wherein a number of the plurality of terminal groups is greater than the number of predicted abnormal terminals;
obtaining learning data of each of the plurality of terminal groups;
estimating reference learning data;
calculating difference values between the reference learning data and learning data of each of the plurality of terminal groups; and
identifying a terminal group having a smallest difference value among the difference values; and
identifying a final terminal group among the plurality of terminal groups, based on the terminal group.

10. The method of claim 9 , further comprising updating a system based on the learning data of the final terminal group.

11. The method of claim 9 , further comprising identifying whether the smallest difference value of the final terminal group is less than a threshold.

12. The method of claim 11 , further comprising, in response to the smallest difference value of the final terminal group being less than the threshold, updating a system on a basis of the learning data of the final terminal group.

13. The method of claim 11 , further comprising, if the smallest difference value of the final terminal group is greater than or equal to the threshold, not updating a system on a basis of the learning data of the final terminal group.

14. The method of claim 9 , further comprising:
receiving a synchronization signal from at least one terminal; and
estimating a channel between the at least one terminal and the electronic device, based on the synchronization signal,
wherein the at least one terminal is included in any one of the plurality of terminal groups.

15. The method of claim 14 , further comprising:
allowing the synchronization signal to include information on a resource required in the at least one terminal;
determining a maximum amount of a resource of each of the plurality of terminal groups, based on the information; and
transmitting information on the maximum amount of the resource of each of the plurality of terminal groups to the at least one terminal.

16. The method of claim 9 , further comprising:
receiving a channel estimation signal from at least one terminal, the signal including information on a maximum size of a symbol required to transmit learning data of the at least one terminal.

17. The method of claim 9 , wherein the allocating of the different resources respectively to the plurality of terminal groups comprises allocating resources which are orthogonal to each other.

18. The method of claim 9 , further comprising:
calculating an optimal gradient for each terminal group of the plurality of terminal groups, based on a signal received from each of the plurality of terminal groups.

Assignees

• Seoul Nat Univ R&Db Foundation

Inventors

• Choi Wan

Classifications

• H04L25/0202

  Channel estimation · CPC title

• H04W72/51

  based on terminal or device properties · CPC title

• H04W72/121 Primary

  for groups of terminals or users · CPC title

• H04W24/04

  Arrangements for maintaining operational condition · CPC title

• H04W24/02 Primary

  Arrangements for optimising operational condition · CPC title