# US 12,764,600 B2 · Wireless communication system, wireless communication method, base station, and control program

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 12,764,600 B2
- Document ID: US12764600B2
- Status: Granted
- Kind: B2
- Application number: 18/711,695
- Filed: 2021-12-03
- Published: 2025-01-09
- Granted: 2026-10-13
- Earliest claimed: 2021-12-03
- Assignees: NTT, Inc.
- Applicants: NTT, Inc.
- Inventors: Riku Omiya; Junichi Iwatani; Akira Kishida; Shinya Otsuki; Yusuke Asai; Tomoaki Ogawa; Yasushi Takatori
- Web page: https://patentgrep.com/patent/US12764600B2

## CPC

- H04W 28/04: Error control
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A wireless communication system according to one embodiment is a wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, and the wireless communication system includes: number-of-times measurement circuitry configured to measure the number of retries for attempting communication by the second communication scheme; and a controller to perform control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the number of times measured by the number-of-times measurement circuitry exceed a predetermined number of times.

## Claims

### Claim 1

A wireless communication system including: one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band; and a multi-device compatible base station that accommodates the wireless terminals, the wireless communication system comprising:
number-of-times measurement circuitry configured to measure the number of retries for attempting communication by the second communication scheme; and
a controller to perform control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the number of times measured by the number-of-times measurement circuitry exceed a predetermined number of times.

### Claim 2 (depends on 1)

The wireless communication system according to claim 1, wherein
the first communication scheme and the second communication scheme are wireless communication schemes conforming to a standard of a wireless LAN.

### Claim 3

A wireless communication method for controlling one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band, and a multi-device compatible base station that accommodates the wireless terminals, the wireless communication method comprising:
measuring the number of retries for attempting communication by the second communication scheme; and
performing control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the measured number of times exceeds a predetermined number of times.

### Claim 4 (depends on 3)

The wireless communication method according to claim 3, wherein
the first communication scheme and the second communication scheme are wireless communication schemes conforming to a standard of a wireless LAN.

### Claim 5

A multi-device compatible base station that accommodates one or more wireless terminals capable of communicating by both a first communication scheme using a first frequency band and a second communication scheme using a second frequency band, which is higher than the first frequency band, the base station comprising:
number-of-times measurement circuitry configured to measure the number of retries for attempting communication by the second communication scheme; and
a controller to perform control such that the base station performs wireless communication by the first communication scheme without using the second communication scheme until a predetermined time elapses with respect to a wireless terminal in which the number of times measured by the number-of-times measurement circuitry exceed a predetermined number of times.

### Claim 6 (depends on 5)

The base station according to claim 5, wherein
the first communication scheme and the second communication scheme are wireless communication schemes conforming to a standard of a wireless LAN.

### Claim 7 (depends on 5)

A non-transitory computer-readable storage medium storing a control program for causing a computer to function as each circuitry of the base station according to claim 5.