Electronic device, method and computer-readable medium for sensing spectrum usage in a cognitive radio communication system

• US 10,700,900 B2
• Filed: 06/29/2018
• Issued: 06/30/2020
• Est. Priority Date: 10/14/2011
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Rao, Yu, Chen, Wei, Cao, Zhigang, Guo, Xin, Sawai, Ryo, Kimura, Ryota
• Primary Examiner(s): Pham, Chi H
• Assistant Examiner(s): Huang, Weibin
• Application Number:
  US16/022,780
• Publication Number:
  US 20180324009A1
• Time in Patent Office: 732 Days
• CPC Class Codes: H04L 27/0006 Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio for spectrum sharing between different networks H04W16/14
• CPC Class Codes: H04L 27/0012 arrangements for identifying the type of modulation
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1469 using time-sharing
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 52/14 Separate analysis of uplink or downlink

Abstract

The disclosure provides an electronic device, a method and computer-readable medium. The electronic device includes a circuitry. The circuitry is configured to receive a radio communication signal for another device. The circuitry is also configured to determine, based on the radio communication signal, one or more features that can reflect the difference between uplink transmission mode and downlink transmission mode. The circuitry is further configured to judge whether the radio communication signal is for uplink transmission or downlink transmission according to the feature(s).

Claims

1. An electronic device, comprising

circuitry configured to

detect an energy value of a signal by sensing target transmission resources to be used by the electronic device;

determine an occupancy probability of the target transmission resources based on the energy value and a threshold; and

generate a report, that indicates the occupancy probability, for another device that controls utilization of the target transmission resources by the electronic device, wherein

an occupancy status of the target transmission resources corresponds to one of downlink transmission occupied, uplink transmission occupied or idle, and

the circuitry is further configured to distinguish between a downlink transmission occupied status and an uplink transmission occupied status based on whether the energy value exceeds a second threshold.

2. The electronic device according to claim 1, wherein

the circuitry is further configured to detect plural energy values of one or more samples on the target transmission resources, and

the report is based on the plural energy values.

3. The electronic device according to claim 1, wherein the circuitry is configured to determine that the target transmission resources are occupied in a case that the detected energy value exceeds the threshold.

4. The electronic device according to claim 1, wherein the circuitry is configured to detect the energy value on the target transmission resources according to an energy of a communication signal received on the target transmission resources.

5. The electronic device according to claim 1, wherein the second threshold is set according to a maximum uplink transmission power and a downlink transmission power.

6. The electronic device according to claim 1, wherein the circuitry is further configured to

receive a signal on the target transmission resources, and

perform a Fourier Transform on the signal to acquire a sample of which the energy value is detected.

7. The electronic device according to claim 1, wherein the circuitry is configured to detect energy values of a predetermined number of symbols.

8. The electronic device according to claim 1, wherein the another device is a base station that determines, based on the report, a candidate configuration of additional target transmission resources of another communication system as a basis of controlling interference to the another communication system.

9. A method for radio communication in a radio communication system, the method comprising:

detecting, by an electronic device, an energy value of a signal by sensing target transmission resources to be used by the electronic device;

determining an occupancy probability of the target transmission resources based on the energy value and a threshold; and

generating a report, that indicates the occupancy probability, for another device that controls utilization of the target transmission resources by the electronic device, wherein

an occupancy status of the target transmission resources corresponds to one of downlink transmission occupied, uplink transmission occupied or idle, and

the method further comprises distinguishing between a downlink transmission occupied status and an uplink transmission occupied status based on whether the energy value exceeds a second threshold.

10. The method according to claim 9, further comprising:

detecting plural energy values of one or more samples on the target transmission resources, wherein

the report is based on the plural energy values.

11. The method according to claim 9, further comprising:

determining that the target transmission resources is occupied in a case that the detected energy value exceeds the threshold.

12. The method according to claim 9, wherein the detecting the energy value on the target transmission resources is performed according to an energy of a communication signal received on the target transmission resources.

13. The method according to claim 9, wherein the second threshold is set according to a maximum uplink transmission power and a downlink transmission power.

14. The method according to claim 9, further comprising:

receiving a signal on the target transmission resources; and

performing a Fourier Transform on the signal to acquire a sample of which the energy value is detected.

15. The method according to claim 9, further comprising:

detecting energy values of a predetermined number of symbols.

16. The method according to claim 9, wherein the another device is a base station that determines, based on the report, a candidate configuration of target transmission resources of another communication system as a basis of controlling interference to the another communication system.

17. A non-transitory computer readable storage medium including executable instructions, which when executed by an electronic device, cause the electronic device to:

detect an energy value of a signal by sensing target transmission resources to be used by the electronic device;

determine an occupancy probability of the target transmission resources based on the energy value and a threshold; and

generate a report, that indicates the occupancy probability, for another device that controls utilization of the target transmission resources by the electronic device, wherein

an occupancy status of the target transmission resources corresponds to one of downlink transmission occupied, uplink transmission occupied or idle, and

the electronic device is further caused to distinguish between a downlink transmission occupied status and an uplink transmission occupied status based on whether the energy value exceeds a second threshold.

18. The non-transitory computer readable storage medium according to claim 17, wherein

the electronic device is further caused to detect plural energy values of one or more samples on the target transmission resources, and

the report is based on the plural energy values.