Apparatus and method for physical layer security commuication in wireless communication system

Patent metadata

Field	Value
Publication number	US-10608777-B2
Application number	US-201816207585-A
Country	US
Kind code	B2
Filing date	Dec 3, 2018
Priority date	Dec 11, 2017
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

An operation method of a terminal in a wireless communication system includes: transmitting uplink (UL) traffic information indicating a size of a UL data signal to a base station; receiving a jamming message generated based on the UL traffic information from the base station; generating an uplink (UL) transmission signal including the UL data signal and a UL jamming signal based on the jamming message; and transmitting the UL transmission signal to the base station. Also, the jamming message indicates a pattern of the UL jamming signal, the UL transmission signal is transmitted in a same frequency band as a frequency band in which a downlink (DL) transmission signal of the base station is received, and the UL jamming signal is transmitted in remaining resources excluding resources occupied by the UL data signal in the frequency band.

First claim

What is claimed is:

1. An operation method of a terminal, in a wireless communication system, the operation method being implemented by a processor executing instructions stored in a non-transitory machine-readable data storage medium and comprising:
transmitting uplink (UL) traffic information indicating a size of a UL data signal to a base station;
receiving a jamming message generated based on the UL traffic information from the base station;
generating an uplink (UL) transmission signal including the UL data signal and a UL jamming signal based on the jamming message; and
transmitting the UL transmission signal to the base station,
wherein the jamming message indicates a pattern of the UL jamming signal, the UL transmission signal is transmitted in a same frequency band as a frequency band in which a downlink (DL) transmission signal of the base station is received, and the UL jamming signal is transmitted in remaining resources excluding resources occupied by the UL data signal in the frequency band.

2. The operation method according to claim 1 , wherein the UL jamming signal is mixed with the UL data signal in at least one of time domain and frequency domain according to the pattern indicated by the jamming message and then transmitted in the frequency band.

3. The operation method according to claim 1 , wherein a size of the remaining resources corresponds to a difference between a size of resources occupied by the UL data signal and a size of resources occupied by a DL data signal in the frequency band.

4. The operation method according to claim 1 , wherein a DL jamming signal is mixed with a DL data signal according to the pattern indicated by the jamming message, the DL jamming signal is transmitted through remaining resources excluding resources occupied by the DL data signal in the frequency band, and the DL jamming signal is removed from the DL transmission signal according to the pattern indicated by the jamming message.

5. The operation method according to claim 1 , wherein the UL traffic information is included in a radio resource control (RRC) layer message transmitted to the base station.

6. An operation method of a base station, in a wireless communication system, the operation method being implemented by a processor executing instructions stored in a non-transitory machine-readable data storage medium and comprising:
receiving uplink (UL) traffic information indicating a size of a UL data signal from a terminal;
generating a jamming message indicating a pattern of a UL jamming signal based on the UL traffic information;
transmitting the jamming message to the terminal;
receiving a UL transmission signal including the UL jamming signal generated based on the jamming message from the terminal; and
transmitting a downlink (DL) transmission signal to the terminal in a same frequency band as a frequency band in which the UL transmission signal is received,
wherein the UL jamming signal is received in remaining resources excluding resources occupied by the UL data signal in the frequency band.

7. The operation method according to claim 6 , wherein the UL jamming signal is mixed with the UL data signal in at least one of time domain and frequency domain according to the pattern indicated by the jamming message and then transmitted in the frequency band.

8. The operation method according to claim 6 , wherein a size of the remaining resources corresponds to a difference between a size of resources occupied by the UL data signal and a size of resources occupied by a DL data signal in the frequency band.

9. The operation method according to claim 6 , wherein the UL jamming signal is removed from the UL transmission signal according to the pattern indicated by the jamming message.

10. The operation method according to claim 6 , wherein the UL traffic information is included in a radio resource control (RRC) layer message received from the terminal.

11. An operation method of a base station, in a wireless communication system, the operation method being implemented by a processor executing instructions stored in a non-transitory machine-readable data storage medium and comprising:
receiving uplink (UL) traffic information indicating a size of a UL data signal from a first terminal;
generating a UL jamming message indicating a first pattern of a UL jamming signal based on a size of the UL data signal;
generating a downlink (DL) jamming message indicating a second pattern of a DL jamming signal based on a size of the UL data signal and a size of a DL data signal to be transmitted to a second terminal;
transmitting the UL jamming message to the first terminal;
transmitting the DL jamming message to the second terminal;
receiving a UL transmission signal including the UL jamming signal generated based on the UL jamming message from the first terminal; and
transmitting a DL transmission signal including the DL jamming signal generated based on the DL jamming message to the second terminal.

12. The operation method according to claim 11 , wherein the DL transmission signal is transmitted in a same frequency band as a frequency band in which the UL transmission signal is received.

13. The operation method according to claim 11 , wherein the DL jamming signal is transmitted in remaining resources excluding resources occupied by the DL data signal in the frequency band in which the DL transmission signal is transmitted.

14. The operation method according to claim 11 , wherein the UL jamming signal is transmitted in remaining resources excluding resources occupied by the UL data signal in the frequency band in which the UL transmission signal is transmitted.

15. The operation method according to claim 11 , wherein the DL jamming signal is mixed with the DL data signal in at least one of time domain and frequency domain according to the second pattern indicated by the DL jamming message and then transmitted in the frequency band.

16. The operation method according to claim 11 , wherein the UL jamming signal is mixed with the UL data signal in at least one of time domain and frequency domain according to the first pattern indicated by the UL jamming message and then transmitted in the frequency band.

17. The operation method according to claim 11 , wherein the UL jamming signal is removed from the UL transmission signal according to the first pattern indicated by the UL jamming message.

18. The operation method according to claim 11 , wherein the UL traffic information is included in a radio resource control (RRC) layer message received from the terminal.

19. The operation method according to claim 11 , wherein the DL jamming message includes co-channel interference cancelation (CCIC) information indicating whether the first terminal performs a CCIC operation, the CCIC indication information is generated based on CCI channel feedback information indicating a degree of CCI, which is received from the second terminal, the CCI channel feedback information is generated based on a strength of a signal transmitted by the first terminal, and the strength of the signal transmitted by the first terminal is measured based on the UL traffic information received from the first terminal.

20. The operation method according to claim 19 , wherein the UL jamming message includes power control information indicating a transmission power of the first terminal, and the power control information is generated based on the CCI channel feedback information.

Assignees

• Electronics & Telecommunications Res Inst

Inventors

• Ju Hyung Sik
• Gwak Dong Hyuk
• Kim Seon Ae
• Son Jung Bo
• Lee Yu Ro
• Lee Hyun

Classifications

• H04L27/2647

  Arrangements specific to the receiver only (equalisation H04L27/01) · CPC title

• H04J11/004

  using regenerative subtractive interference cancellation · CPC title

• H04L27/34

  Amplitude- and phase-modulated carrier systems, e.g. quadrature-amplitude modulated carrier systems · CPC title

• H04K3/43

  characterized by the control of the jamming power, signal-to-noise ratio or geographic coverage area · CPC title

• H04K2203/16

  for telephony · CPC title