IP Library › Granted Patent US 12,250,666
Granted Patent B2
US 12,250,666 · App. 17/590,103 · Granted Mar 11, 2025

Base station device, relay device, and communication system

Inventors: Yoshiaki Ohta (Yokohama, JP); Ryuichi Takechi (Kawasaki, JP); Yoshihiro Kawasaki (Kawasaki, JP)
Assignee: FUJITSU LIMITED
H04W72/0453H04B7/155H04W84/042H04W84/12H04W88/06
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,250,666
App. No.
17/590,103
Granted
Mar 11, 2025
Kind
B2
Abstract

A base station device includes a processor a communicator. The processor configured to perform, when a terminal device performs wireless communication by using both a first wireless communication method that is a wireless communication method with the base station device and a second wireless communication method that is a wireless communication method with a relay device, data communication by converging the wireless communication in a convergence layer in the first wireless communication method. The communicator configured to identify, even when the relay device relays data that is transmitted and/or received by the second wireless communication method to the base station device by any of the wireless communication methods of the first wireless communication method and the second wireless communication method, a bearer in the first wireless communication method to which the data belongs, and transmit and/or receive the data.

Claims (36)

1. A base station device in a communication system including a terminal device, the base station device, and a relay device that relays communication between the terminal device and the base station device, the base station device comprising:

a processor configured to perform, when the terminal device performs wireless communication by using both a first wireless communication method that is a wireless communication method with the base station device and a second wireless communication method that is a wireless communication method with the relay device, data communication by converging the wireless communication in a convergence layer in the first wireless communication method; and

a communicator configured to:

identify, when the relay device relays, by the first wireless communication method between the relay device and the base station device, first data that is transmitted and/or received by the second wireless communication method between the terminal device and the relay device, a bearer in the first wireless communication method to which the first data belongs,

identify, when the relay device relays, by the second wireless communication method between the relay device and the base station device, second data that is transmitted and/or received by the second wireless communication method between the terminal device and the relay device, a bearer in the first wireless communication method to which the second data belongs, and

transmit and/or receive the first and second data.

2. The base station device according to claim 1 , wherein

the communicator is further configured to:

convert, when the relay device relays data to the base station device by the second wireless communication method, the data received by the second wireless communication method into data received by the first wireless communication method, and

identify a bearer in the first wireless communication method, to which the converted data belongs.

3. The base station device according to claim 1 , wherein

the processor is further configured to share, when the relay device relays data to the base station device by the first wireless communication method, processing of two pieces of data received in the first wireless communication method by the convergence layer in the first wireless communication method, between each of bearers of the two pieces of data.

4. The base station device according to claim 1 , wherein

the processor is further configured to:

perform, when the relay device relays data to the base station device by the first wireless communication method, processing of the convergence layer in the first wireless communication method for each of two pieces of data received by the first wireless communication method, and,

perform, according to each result of the performed processing of the convergence layer, the data communication control by using each of bearers of the two pieces of data as one bearer.

5. The base station device according to claim 1 , wherein

the first wireless communication method includes a wireless communication method that conforms to a communication standard of fifth generation mobile communication, and

the second wireless communication method includes a wireless communication method that conforms to a communication standard of a wireless local area network (WLAN).

6. The base station device according to claim 1 , wherein

the convergence layer in the first wireless communication method includes a packet data convergence protocol (PDCP) layer.

7. A communication system comprising:

a terminal device;

a base station device; and

a relay device configured to relay communication between the terminal device and the base station device,

wherein the terminal device includes:

a first communicator configured to perform communication with the base station device by using a first wireless communication method, and

a second communicator configured to perform communication with the relay device by using a second wireless communication method,

the relay device includes:

a first processor configured to convert, when the first wireless communication method is used to perform communication with the base station device, data received from the terminal device into data of the first wireless communication method, and convert data received from the base station device into data of the second wireless communication method, relays communication between the base station device and the terminal device, and

the base station device includes:

a second processor configured to perform, when the terminal device performs wireless communication by using both the first wireless communication method and the second wireless communication method, data communication by converging the wireless communication in a convergence layer in the first wireless communication method; and

a third communicator configured to:

identify, when the relay device relays, by the first wireless communication method between the relay device and the base station device, first data transmitted and/or received by the second wireless communication method between the terminal device and the relay device, a bearer in the first wireless communication method to which the first data belongs,

identify, when the relay device relays, by the second wireless communication method between the relay device and the base station device, second data that is transmitted and/or received by the second wireless communication method between the terminal device and the relay device, a bearer in the first wireless communication method to which the second data belongs, and

transmit and/or receive the first and second data.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 5, 2026
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 074197/0244 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2022
From: OHTA, YOSHIAKI; TAKECHI, RYUICHI; KAWASAKI, YOSHIHIRO
To: FUJITSU LIMITED
Reel/Frame 058844/0328 →
Continuity (2)
Continuation PCTJP2019032468 · Aug 20, 2019
Related Publication 20220159655A1 · May 19, 2022
References Cited (65)
US 20150110014A1 · Wang · 2015 [cited by examiner]
US 20150117357A1 · Ozturk · 2015 [cited by examiner]
US 20150305041A1 · Kim · 2015 [cited by examiner]
US 20160255589A1 · Sato et al. · 2016 [cited by applicant]
US 20180035440A1 · Ohta et al. · 2018 [cited by applicant]
US 20190037433A1 · Nagasaka et al. · 2019 [cited by applicant]
US 20190253924A1 · Kim et al. · 2019 [cited by applicant]
US 20190349950A1 · Takano et al. · 2019 [cited by applicant]
US 20220345938A1 · Gupta · 2022 [cited by examiner]
CN 109937610A · 2019 [cited by applicant]
CN 109982300A · 2019 [cited by applicant]
JP 2016525314A · 2016 [cited by applicant]
JP 2017529762A · 2017 [cited by applicant]
WO 2015009469A1 · 2015 [cited by applicant]
WO 2015079821A1 · 2015 [cited by applicant]
WO 2016028563A1 · 2016 [cited by applicant]
WO 2016163036A1 · 2016 [cited by applicant]
WO 2017170164A1 · 2017 [cited by applicant]
BGPP TS 36.133 V16.0.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Requirements for support of radio resource management … [cited by applicant]
3GPP TS 36.211 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 15), Mar. 20… [cited by applicant]
3GPP TS 36.212 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (Release 15), Mar. 201… [cited by applicant]
3GPP TS 36.213 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 36.214 V15.3.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer; Measurements (Release 15), Sep. 2018. [cited by applicant]
3GPP TS 36.300 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network … [cited by applicant]
3GPP TS 36.321 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification (Re… [cited by applicant]
3GPP TS 36.322 V15.1.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Link Control (RLC) protocol specification (Relea… [cited by applicant]
3GPP TS 36.323 V15.3.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Packet Data Convergence Protocol (PDCP) specification … [cited by applicant]
3GPP TS 36.331 V15.5.1, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Radio Resource Control (RRC); Protocol specification (… [cited by applicant]
3GPP TS 36.413 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); S1 Application Protocol (S1AP) (Release 15), … [cited by applicant]
3GPP TS 36.423 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 application protocol (X2AP) (Release 15), … [cited by applicant]
3GPP TS 36.425 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access Network (E-UTRAN); X2 interface user plane protocol (Release 15… [cited by applicant]
3GPP TS 37.340 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA) and NR; Multi-connectivity; Stage 2 (Release 15), Mar. … [cited by applicant]
3GPP TS 38.201 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer; General description (Release 15)”, Dec. 2017. [cited by applicant]
3GPP TS 38.202 V15.4.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Services provided by the physical layer (Release 15), Dec. 2018. [cited by applicant]
3GPP TS 38.211 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical channels and modulation (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.212 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Multiplexing and channel coding (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.213 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for control (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.214 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.215 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer measurements (Release 15), Jun. 2019. [cited by applicant]
3GPP TS 38.300 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; NR and NG-RAN Overall Description; Stage 2 (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.321 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Medium Access Control (MAC) protocol specification (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.322 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Link Control (RLC) protocol specification (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.323 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Packet Data Convergence Protocol (PDCP) specification (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 37.324 V15.1.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; E-UTRA and NR; Service Data Adaptation Protocol (SDAP) specification (Release 15), Sep. 2018. [cited by applicant]
3GPP TS 38.331 V15.5.1, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Resource Control (RRC) protocol specification (Release 15), Apr. 2019. [cited by applicant]
3GPP TS 38.401 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Architecture description (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.410 V15.2.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; NG general aspects and principles (Release 15), Dec. 2018. [cited by applicant]
3GPP TS 38.413 V15.3.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; NG Application Protocol (NGAP) (Release 15), Mar. 2019. [cited by applicant]
3GPP TS 38.420 V15.2.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Xn general aspects and principles (Release 15), Dec. 2018. [cited by applicant]
3GPP TS 38.423 V15.3.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Xn application protocol (XnAP) (Release 15), Mar. 2019. [cited by applicant]
BGPP TS 38.470 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; F1 general aspects and principles (Release 15), Mar. 2019. [cited by applicant]
BGPP TS 38.473 V15.5.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; F1 application protocol (F1AP) (Release 15), Mar. 2019. [cited by applicant]
BGPP TS 23.501 V16.1.0, 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; System Architecture for the 5G System; Stage 2 (Release 16), Jun. 2019. [cited by applicant]
3GPP TR 38.801 V14.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on new radio access technology: Radio access architecture and interfaces (Release 14)”, Mar. 2017. [cited by applicant]
3GPP TS 38.802 V14.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on New Radio Access Technology Physical Layer Aspects (Release 14)”, Sep. 2017. [cited by applicant]
3GPP TR 38.803 V14.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on new radio access technology: Radio Frequency (RF) and co-existence aspects (Release 14)”, Sep. 20… [cited by applicant]
3GPP TS 38.804 V14.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on New Radio Access Technology; Radio Interface Protocol Aspects (Release 14)”, Mar. 2017. [cited by applicant]
3GPP TS 38.900 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on channel model for frequency spectrum above 6 GHZ (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.912 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on New Radio (NR) access technology (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.913 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on Scenarios and Requirements for Next Generation Access Technologies; (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.889 V16.0.0, 3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Study on NR-based access to unlicensed spectrum (Release 16), Dec. 2018. [cited by applicant]
OPPO, “Discussion on UE-based data duplication enhancement”, Agenda Item: 11.7.4, 3GPP TSG-RAN WG2 Meeting #107, R2-1910024, Prague, Czech, Aug. 26-30, 2019. [cited by applicant]
LG Electronics, Inc et al., “PDCP duplication on split bearer”, Agenda Item: 11.7.4 (NR_IIOT-Core), 3GPP TSG-RAN WG2 Meeting #107, R2-1909815, Prague, Czech Republic, Aug. 26-30, 2019. [cited by applicant]
International Search Report with the Written Opinion of the International Searching Authority issued by the Japan Patent office for corresponding International Patent Application No. PCT/JP2019/032468, with a partial En… [cited by applicant]
First Notification of Office Action and Search Report issued by the China National Intellectual Property Administration for corresponding Chinese Patent Application No. 201980099469.6, dated Jul. 29, 2023, with an Engli… [cited by applicant]