# US 2021/0345338 A1 · Communication system for alleviating interference arising due to coexistence

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- Number: US 2021/0345338 A1
- Document ID: US20210345338A1
- Status: Published application
- Kind: A1
- Application number: 17/374,551
- Filed: 2021-07-13
- Published: 2021-11-04
- Earliest claimed: 2014-06-12
- Assignees: NEC Corporation
- Applicants: NEC Corporation
- Inventors: Jagdeep Singh AHLUWALIA; Kenji KAWAGUCHI; Neeraj GUPTA
- Web page: https://patentgrep.com/patent/US20210345338A1

## CPC

- H04W 72/52: based on load
- H04W 16/14: Spectrum sharing arrangements {between different networks}
- H04W 72/1215: {for collaboration of different radio technologies}
- H04W 76/15: Setup of multiple wireless link connections
- H04W 88/10: adapted for operation in multiple networks, e.g. multi-mode access points
- H04W 52/367: {Power values between minimum and maximum limits, e.g. dynamic range}
- H04W 52/38: TPC being performed in particular situations
- H04W 84/042: {Public Land Mobile systems, e.g. cellular systems}
- H04W 84/045: {using private Base Stations, e.g. femto Base Stations, home Node B}
- H04W 84/12: WLAN [Wireless Local Area Networks]
- H04W 92/20: between access points
- Y02D 30/70: in wireless communication networks
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A communication apparatus is disclosed, which comprises a base station module and an access point module for providing wireless connectivity to a communication network to at least one mobile communication device; an interface for coupling the base station module and the access point module for performing at least one of: a channel restriction operation; a power restriction operation; an intelligent uplink scheduling operation; a carrier frequency reselection operation; and a traffic steering operation; whereby alleviating an interference arising due to coexistence of the base station module and the access point module.

## Claims

### Claim 1

A method performed by a base station communicating with a user equipment (UE) that is configured to use radio resources of a Long Term Evolution (LTE) and a wireless local area network (WLAN), the method comprising:
requesting, over an interface, to a communication device for providing a connectivity of the WLAN, a channel utilization time information of the WLAN;
receiving, over the interface, the channel utilization time information from the communication device; and
receiving, from the communication device over the interface, WLAN information representing at least one channel or frequency band of the WLAN.

### Claim 2

A method performed by a communication device communicating with a user equipment (UE) and providing a connectivity of a wireless local area network (WLAN), the UE configured to use radio resources of a Long Term Evolution (LTE) and the WLAN, the method comprising:
receiving, over an interface, from a base station communicating with the UE, a request for a channel utilization time information of the WLAN;
sending, over the interface, the channel utilization time information to the base station in accordance with the request; and
sending, to the base station over the interface, WLAN information representing at least one channel or frequency band of the WLAN.

### Claim 3

A base station comprising:
a transceiver configured to communicate with a user equipment (UE) that is configured to use radio resources of a Long Term Evolution (LTE) and a wireless local area network (WLAN); and
a controller configured to:
request, over an interface, to a communication device for providing a connectivity of the WLAN, a channel utilization time information of the WLAN;
receive, over the interface, the channel utilization time information from the communication device; and
receive, from the communication device over the interface, WLAN information representing at least one channel or frequency band of the WLAN.

### Claim 4

A communication apparatus comprising:
a transceiver configured to communicate with a user equipment (UE) and providing a connectivity of wireless local area network (WLAN), the UE configured to use radio resources of a Long Term Evolution (LTE) network and the WLAN; and
a controller configured to:
receive, over an interface, from a base station communicating with the UE, a request for a channel utilization time information of the WLAN;
send, over the interface, the channel utilization time information to the base station in accordance with the request; and
send, to the base station over the interface, WLAN information representing at least one channel or frequency band of the WLAN.