# US 10,321,459 B2 · Wireless communication apparatus, wireless communication system, wireless communication method and program

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- Number: US 10,321,459 B2
- Document ID: US10321459B2
- Status: Granted
- Kind: B2
- Application number: 16/024,279
- Filed: 2018-06-29
- Published: 2018-11-15
- Granted: 2019-06-11
- Earliest claimed: 2007-03-08
- Assignees: Sony Corporation
- Applicants: Sony Corporation
- Inventors: Shigeru Sugaya
- Web page: https://patentgrep.com/patent/US10321459B2

## CPC

- H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA
- H04B 1/40: Circuits
- H04J 11/00: Orthogonal multiplex systems, {e.g. using WALSH codes}(H04J13/00 takes precedence)
- H04L 5/003: {Arrangements for allocating sub-channels of the transmission path}
- H04L 69/22: Parsing or analysis of headers
- H04W 8/005: {Discovery of network devices, e.g. terminals}
- H04W 8/02: Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
- H04W 40/244: {using a network of reference devices, e.g. beaconing}
- H04W 48/18: Selecting a network or a communication service
- H04W 72/02: Selection of wireless resources by user or terminal
- H04W 76/14: Direct-mode setup
- H04W 84/18: Self-organising networks, e.g. ad-hoc networks or sensor networks
- H04W 88/02: Terminal devices
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04B: TRANSMISSION
- H04J: MULTIPLEX COMMUNICATION (transmission in general H04B; peculiar to transmission of digital information H04L5/00; systems for the simultaneous or sequential transmission of more than one television signal H04N7/08; in exchanges H04Q11/00; stereophonic systems H04S)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A wireless communication apparatus is provided that performs wireless communication using a specified wireless channel and forms part of an ad hoc wireless network. The device includes a recording portion that records country ID information and recording-time information in to a storage medium, where the recording-time information indicates the time at which the country ID information was recorded in to the storage medium, a time determination portion that uses the recording-time information to determine whether a predetermined time period has elapsed from the time at which the country ID information was recorded, and a channel setting portion that, when the predetermined time period has not elapsed from the time at which the country ID information was recorded in the storage medium, sets a wireless channel to a frequency channel that can be used in the country indicated by the country ID information recorded in the storage medium.

## Claims

### Claim 1

An electronic device comprising:
control circuitry
configured to:
store or extract a first country ID code that indicates a country setting of the electronic device,
perform a first determination whether the first country ID code is valid,
in response to the first determination that the first country ID code is valid, transmit a wireless signal frame to another electronic device through at least one of a set including the first and the second nodes by a communication link, the wireless signal associated with a signal frame including the first information representing the first country ID code,
obtain second information representing a second country ID code,
determine a frequency band to perform a wireless communication in accordance with the first country ID code, the frequency band consisting of one or more sub-bands,
use the determined frequency band for the wireless communication, and
perform the wireless communication with the another electronic device via the communication link by a frequency channel that belongs to available band group in accordance with the first country ID code through at least one of a set including the first and the second nodes, wherein
the control circuitry is further configured to verify whether the second country ID code is available before determining the frequency band to perform the wireless communication.

### Claim 2 (depends on 1)

The electronic device according to claim 1, wherein the control circuitry is further configured to determine whether the first country code ID differs from the second country code ID.

### Claim 3 (depends on 2)

The electronic device according to claim 2, wherein the control circuitry is further configured to obtain time information and verify whether the second country code is valid based on the time information by determining whether a predetermined period elapsed.

### Claim 4 (depends on 1)

The electronic device of claim 1, wherein a first set of resources is associated with the first country code and the control circuitry is further configured to perform direct-link communication using the first set of resources.

### Claim 5 (depends on 4)

The electronic device of claim 4, wherein the first set of resources comprises a plurality of band groups.

### Claim 6 (depends on 1)

The electronic device of claim 1, wherein the wireless signal corresponds to a beacon signal.