# US 2018/0324009 A1 · Electronic device, method and computer-readable medium for sensing spectrum usage in a cognitive radio communication system

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- Number: US 2018/0324009 A1
- Document ID: US20180324009A1
- Status: Published application
- Kind: A1
- Application number: 16/022,780
- Filed: 2018-06-29
- Published: 2018-11-08
- Earliest claimed: 2011-10-14
- Assignees: Sony Corporation; Tsinghua University
- Applicants: Sony Corporation; Tsinghua University
- Inventors: Yu RAO; Wei CHEN; Zhigang CAO; Xin GUO; Ryo SAWAI; Ryota KIMURA
- Web page: https://patentgrep.com/patent/US20180324009A1

## CPC

- H04L 27/0012: {arrangements for identifying the type of modulation}
- H04L 5/14: Two-way operation using the same type of signal, i.e. duplex
- H04L 5/1469: {using time-sharing}
- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 24/02: Arrangements for optimising operational condition
- H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports}
- H04W 52/14: Separate analysis of uplink or downlink
- 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)}
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## 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

### Claim 1

An electronic device, comprising
circuitry configured to
detect an energy value on a channel in a spectrum unlicensed to the electronic device;
judge whether a predetermined relationship is satisfied between the detected energy value and a first threshold to determine an occupancy probability of the channel; and
generate a report indicating the occupancy probability of the channel for facilitating a serving base station of the electronic device to decide opportunistic utilization of the channel for communication.