IP Library › Granted Patent US 12,426,083
Granted Patent B2
US 12,426,083 · App. 17/162,369 · Granted Sep 23, 2025

Base station, terminal, and wireless communication system

Inventors: Yoshiaki Ohta (Yokohama, JP); Yoshihiro Kawasaki (Kawasaki, JP); Takayoshi Ode (Yokohama, JP); Nobuhisa Aoki (Kawasaki, JP)
Assignee: FUJITSU LIMITED
H04W74/006H04W74/0833H04W76/27H04W80/02
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 12,426,083
App. No.
17/162,369
Granted
Sep 23, 2025
Kind
B2
Abstract

A base station performing random access procedure, the base station includes a transmitter and a controller. The transmitter configured to transmit a protocol data unit which is a signal of the random access procedure and a second signal different from the first signal which is not signal of the random access procedure, the second signal being a downlink control signal of control plane. The controller configured to perform control such that control information is included in the first signal, the control information being for controlling transmission of the second signal.

Claims (43)

1. A base station performing random access procedure, the base station comprising;

a transmitter configured to transmit a protocol data unit which multiplexes a first signal which is a signal of the random access procedure and a second signal different from the first signal which is not a signal of the random access procedure, the second signal being a downlink control signal of control plane; and

a controller configured to perform control such that control information is included in the first signal, the control information controlling transmission of the second signal, wherein the first signal is a random access response signal, and the second signal is the downlink control signal and a signal of RRC (Radio Resource Control) layer, wherein

the random access response signal does not include information on frequency and time resource for uplink data, and

the random access response signal does include information on uplink power control.

2. The base station according to claim 1 , wherein the random access procedure is a non-contention based random access procedure.

3. The base station according to claim 1 , wherein

the controller performs carrier sensing on a transmission band before transmission of the first signal and the second signal, and

the transmitter transmits the first signal and the second signal according to a result of the carrier sensing.

4. The base station according to claim 1 , wherein the transmitter is configured to consecutively transmit the protocol data unit a predetermined number of times.

5. The base station according to claim 1 , wherein

the controller performs to include type information of the random access response signal in a control signal associated with the first signal, and

the transmitter transmits the control signal.

6. The base station according to claim 1 , wherein the controller generates the first signal of a MAC PDU structure having less than 7 octets.

7. The base station according to claim 1 , wherein the information on uplink power control is a transmission power control (TPC) command.

8. The base station according to claim 1 , wherein the controller performs control such that the control information is masked or scrambled by using an identifier of another wireless communication apparatus to which the first signal and the second signal are to be transmitted.

9. The base station according to claim 8 , wherein the controller performs control such that a subheader to contain information indicating whether or not a random access signal is stored.

10. A terminal performing random access procedure, the terminal comprising;

a receiver configured to receive a protocol data unit which multiplexes a first signal which is a signal of the random access procedure and a second signal different from the first signal and which is not a signal of the random access procedure, the second signal being a downlink control signal of control plane; and

a controller configured to perform a reception process for the second signal according to the first signal in which control information is included, the control information controlling transmission of the second signal, wherein

the first signal is a random access response signal, and

the second signal is the downlink control signal and a signal of RRC (Radio Resource Control) layer, wherein

the random access response signal does not include information on frequency and time resource for uplink data, and

the random access response signal does include information on uplink power control.

11. The terminal according to claim 10 , wherein the reception process generates a response signal to the second signal.

12. The terminal according to claim 10 , wherein

the receiver receives the control information being masked or scrambled by using an identifier of a wireless communication apparatus, and

the controller identifies a presence or an absence of a random access signal according to information indicating whether or not the random access signal included in a subheader is stored.

13. The terminal according to claim 10 , wherein the information on uplink power control is a transmission power control (TPC) command.

14. A wireless communication system comprising:

a first wireless communication apparatus; and

a second wireless communication apparatus configured to perform a random access procedure between the first wireless communication, wherein

the first wireless communication apparatus includes:

a transmitter configured to transmit a protocol data unit which multiplexes a first signal which is a signal of the random access procedure and a second signal different from the first signal and which is not a signal of the random access procedure, the second signal being a downlink control signal of control plane, and

a first controller configured to perform control such that control information is included in the first signal, the control information a.for controlling transmission of the second signal, and

the second wireless communication apparatus includes:

a receiver configured to receive the protocol data unit, and

a controller configured to perform a reception process for the second signal according to the first signal, wherein

the first signal is a random access response signal, and

the second signal is the downlink control signal and a signal of RRC (Radio Resource Control) layer, wherein

the random access response signal does not include information on frequency and time resource for uplink data, and

the random access response signal does include information on uplink power control.

15. The wireless communication system according to claim 14 , wherein the information on uplink power control is a transmission power control (TPC) command.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE THE APPLICATION NUMBER 19345640 TO CHANGE IT TO 19346640 AND TO CORRECT THE APPLICATION 19317078 TO CHANGE IT TO 19319078. PREVIOUSLY RECORDED ON REEL 73477 FRAME 351. ASSIGNOR(S) HEREBY CONFIRMS THE THE ASSIGNMENT. Recorded Jan 20, 2026
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 075265/0471 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 3, 2025
From: FUJITSU LIMITED
To: 1FINITY INC.
Reel/Frame 073477/0351 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 29, 2021
From: OHTA, YOSHIAKI; KAWASAKI, YOSHIHIRO; ODE, TAKAYOSHI; AOKI, NOBUHISA
To: FUJITSU LIMITED
Reel/Frame 055080/0992 →
Continuity (2)
Continuation PCTJP2018029848 · Aug 8, 2018
Related Publication 20210160920A1 · May 27, 2021
References Cited (79)
US 20100272035A1 · Park · 2010 [cited by examiner]
US 20110317617A1 · Sun · 2011 [cited by examiner]
US 20120044897A1 · Wager · 2012 [cited by examiner]
US 20120314652A1 · Ahn · 2012 [cited by examiner]
US 20130201960A1 · Kim · 2013 [cited by examiner]
US 20140075189A1 · Abraham · 2014 [cited by examiner]
US 20140185595A1 · Wu · 2014 [cited by examiner]
US 20160073391A1 · Awad · 2016 [cited by examiner]
US 20160374048A1 · Griot · 2016 [cited by examiner]
US 20170013647A1 · Uchino · 2017 [cited by examiner]
US 20170231012A1 · Sung · 2017 [cited by examiner]
US 20180132168A1 · Ingale · 2018 [cited by examiner]
US 20180139778A1 · Chou · 2018 [cited by examiner]
US 20180213452A1 · Kim · 2018 [cited by examiner]
US 20180213556A1 · Rico Alvarino · 2018 [cited by examiner]
US 20180279186A1 · Park · 2018 [cited by examiner]
US 20180279372A1 · Takeda et al. · 2018 [cited by applicant]
US 20180324869A1 · Phuyal · 2018 [cited by examiner]
US 20190098658A1 · Noh · 2019 [cited by examiner]
US 20190191464A1 · Loehr · 2019 [cited by examiner]
US 20190254114A1 · Son · 2019 [cited by examiner]
US 20190261427A1 · Comstock · 2019 [cited by examiner]
US 20200077447A1 · Yang · 2020 [cited by examiner]
US 20200146054A1 · Jeon · 2020 [cited by examiner]
US 20200213040A1 · Takeda et al. · 2020 [cited by applicant]
US 20200314917A1 · Jeon · 2020 [cited by examiner]
US 20210105824A1 · Lei · 2021 [cited by examiner]
US 20210160920A1 · Ohta · 2021 [cited by examiner]
US 20220053568A1 · Xing · 2022 [cited by examiner]
US 20230397215A1 · Shi · 2023 [cited by examiner]
KR 20130049561A · 2013 [cited by examiner]
WO 2009057932A2 · 2009 [cited by applicant]
WO 2015115335A1 · 2015 [cited by applicant]
WO 2016072215A1 · 2016 [cited by applicant]
WO 2017026435A1 · 2017 [cited by applicant]
KR 20130049561 (Year: 2013). [cited by examiner]
Notice of Reasons for Refusal issued by the Japan Patent Office for corresponding Japanese Patent Application No. 2020-535409, dated Apr. 19, 2022, with an English machine translation. [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. 201880096205.0, dated Apr. 19, 2023, with an Engli… [cited by applicant]
Extended European search report with the supplementary European search report, and the European search opinion, issued by the European Patent Office for corresponding European Patent Application No. 18929064.6, dated Ju… [cited by applicant]
3GPP TS 36.211 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical channels and modulation (Release 15)”, Jun. … [cited by applicant]
3GPP TS 36.212 V15.2.1, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Multiplexing and channel coding (Release 15)”, Jul. 2… [cited by applicant]
3GPP TS 36.213 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Physical layer procedures (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 36.300 V15.2.0, “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 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; Evolved Universal Terrestrial Radio Access (E-UTRA); Medium Access Control (MAC) protocol specification (R… [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 (Rele… [cited by applicant]
3GPP TS 36.323 V15.0.0, “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 V15.2.2, “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 V15.2.0, “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 V15.2.0, “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 V15.2.0, “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)”, Jun… [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 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Services provided by the physical layer (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.211 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical channels and modulation (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.212 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Multiplexing and channel coding (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.213 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for control (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.214 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer procedures for data (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.215 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Physical layer measurements (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.300 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; NR and NG-RAN Overall Description; Stage 2 (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.321 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Medium Access Control (MAC) protocol specification (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.322 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Link Control (RLC) protocol specification (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.323 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Packet Data Convergence Protocol (PDCP) specification (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.331 V15.2.1, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NR; Radio Resource Control (RRC) protocol specification (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.401 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Architecture description (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.410 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; NG general aspects and principles (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.413 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; NG Application Protocol (NGAP) (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.420 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Xn general aspects and principles (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.423 V15.0.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; Xn application protocol (XnAP) (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.470 V15.2.0, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; F1 general aspects and principles (Release 15)”, Jun. 2018. [cited by applicant]
3GPP TS 38.473 V15.2.1, “3rd Generation Partnership Project; Technical Specification Group Radio Access Network; NG-RAN; F1 application protocol (F1AP) (Release 15)”, Jul. 2018. [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 TR 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 TR 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 TR 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 TR 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 TR 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]
International Search Report and Written Opinion of the International Searching Authority issued by the Japan Patent Office for corresponding International Patent Application No. PCT/JP2018/029848, mailed on Sep. 18, 201… [cited by applicant]
Decision of Refusal issued by the Japan Patent Office for corresponding Japanese Patent Application No. 2020-535409, dated Jun. 28, 2022, with an English machine translation. [cited by applicant]