US20190140793A1 - User terminal, radio base station and radio communication method - Google Patents

User terminal, radio base station and radio communication method Download PDF

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Publication number
US20190140793A1
US20190140793A1 US15/885,494 US201815885494A US2019140793A1 US 20190140793 A1 US20190140793 A1 US 20190140793A1 US 201815885494 A US201815885494 A US 201815885494A US 2019140793 A1 US2019140793 A1 US 2019140793A1
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US
United States
Prior art keywords
user terminal
format
pucch format
base station
radio base
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/885,494
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English (en)
Inventor
Kazuki Takeda
Satoshi Nagata
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NTT Docomo Inc
Original Assignee
NTT Docomo Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NTT Docomo Inc filed Critical NTT Docomo Inc
Assigned to NTT DOCOMO, INC. reassignment NTT DOCOMO, INC. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAGATA, SATOSHI, TAKEDA, KAZUKI
Publication of US20190140793A1 publication Critical patent/US20190140793A1/en
Priority to US16/597,528 priority Critical patent/US11418301B2/en
Abandoned legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
    • H04L5/0046—Determination of how many bits are transmitted on different sub-channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H04J2011/0003—Combination with other multiplexing techniques
    • H04J2011/0009—Combination with other multiplexing techniques with FDM/FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J2211/00—Orthogonal indexing scheme relating to orthogonal multiplex systems
    • H04J2211/003—Orthogonal indexing scheme relating to orthogonal multiplex systems within particular systems or standards
    • H04J2211/006—Single carrier frequency division multiple access [SC FDMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • One or more embodiments disclosed herein relate to a user terminal, a radio base station and a radio communication method in next-generation mobile communication systems.
  • LTE of Rel. 13 and later versions operation in frequency bands where license is not required—that is, unlicensed bands—is also a target of study.
  • unlicensed band for example, 2.4 GHz, which is the same as in Wi-Fi, or the 5 GHz band and/or the like, may be used.
  • carrier aggregation LAA: license-assisted access
  • LAA license-assisted access
  • UCI is modulated by Quadrature Phase Shift Keying (QPSK) in the format.
  • QPSK Quadrature Phase Shift Keying
  • the processor performs rate matching of UCI so as to coincide with a number of bits determined based on the configured number of resource blocks.
  • Embodiments disclosed herein further include a radio communication method in a user terminal configured to communicate with a radio base station, the radio communication method comprising: configuring a number of resource blocks used in a format for an uplink control signal; and transmitting to the radio base station the uplink control signal using the format comprising the configured number of resource blocks.
  • CCs component carriers
  • the transmitting/receiving sections 103 can be constituted by transmitters/receivers, transmitting/receiving circuits or transmitting/receiving devices that can be described based on common understanding of the technical field to which the present invention pertains. Note that a transmitting/receiving section 103 may be structured as a transmitting/receiving section in one entity, or may be constituted by a transmitting section and a receiving section.
  • the control section 301 can be constituted by a controller, a control circuit or a control device that can be described based on common understanding of the technical field to which the present invention pertains.
  • the received signal processing section 303 detects the PUCCH format and performs the receiving process of UCI (at least one of HARQ-ACK, CQI, and SR). Further, the received signal processing section 303 detects the spreading factor/the number of PRBs configured in the new PUCCH format, and performs UCI reception processing. Note that the spreading factor and/or the number of PRBs may be specified from the control section 301 or may be reported from the user terminal 20 .
  • control section 401 controls the PUCCH format to be applied for transmission of UCI (at least one of HARQ-ACK, CQI, and SR). To be more specific, the control section 401 may determine whether to apply a new PUCCH format or apply an existing PUCCH format according to the number of CCs configured in the user terminal 20 or the number of CCs scheduled for the user terminal 20 . Further, when a plurality of new PUCCH formats are provided, the control section 401 may determine the new PUCCH format to apply according to the payload of UCI.
  • control section 401 configures the spreading factor/the number of PRBs to use in the new PUCCH format. For example, if CA to integrate six or more CCs is configured, the control section 401 may configure the spreading factor and/or the number of resource blocks, specified from the radio base station 10 via higher layer signaling or physical layer signaling, in the new PUCCH format. Alternatively, if CA to integrate six or more CCs is configured, the control section 401 may configure the spreading factor and/or the number of resource blocks to use in the new PUCCH format based on the number of UCI bits.
  • control section 401 controls carrier aggregation (CA). To be more specific, the control section 401 performs CA based on information indicating the application/change of CA reported from the radio base station 10 .
  • control section 401 a controller, a control circuit or a control device that can be described based on common understanding of the technical field to which the present invention pertains can be used.
  • the transmission signal generation section 402 generates a symbol sequence obtained by performing DFT and IFFT on the SC-FDMA symbol (modulation symbol) to which the UCI coded bit sequence is mapped, with a spreading code of the spreading factor configured by the control section 401 ( FIG. 8 ).
  • the transmission signal generation section 402 maps the coded bit sequence of UCI to SC-FDMA symbols of PRB of the number of PRBs configured by the control section 401 .
  • the transmission signal generation section 402 may map (interleave) the coded bit sequence in order from the preceding SC-FDMA symbol in the time direction of the same resource block ( FIG. 12A ).
  • the transmission signal generation section 402 may map (interleave) the coded bit sequence in order from the PRB direction (frequency direction) of the number of PRBs that have been configured for the SC-FDMA symbol at the head of the subframe ( FIG. 12B ).
  • a signal generator, a signal generating circuit or a signal generating device that can be described based on common understanding of the technical field to which the present invention pertains can be used.
  • the received signal processing section 403 performs the receiving process (for example, demapping, demodulation, decoding, etc.) on downlink signals (including downlink control signals and downlink data signals).
  • the received signal processing section 403 outputs the information received from the radio base station 10 , to the control section 401 .
  • the received signal processing section 403 outputs, for example, broadcast information, system information, control information by higher layer signaling such as RRC signaling, DCI, and the like, to the control section 401 .
  • the measurement section 404 measures channel states based on reference signals (for example, CSI-RS) from the radio base station 10 , and outputs the measurement results to the control section 401 . Measurement of the channel state may be performed for each CC.
  • reference signals for example, CSI-RS
  • each functional block may be implemented in arbitrary combinations of hardware and software.
  • the means for implementing each functional block is not particularly limited. That is, each functional block may be implemented with one physically-integrated device, or may be implemented by connecting two physically-separate devices via radio or wire and using these multiple devices.
  • the radio base station 10 and the user terminal 20 may be implemented by using hardware such as an ASIC (Application-Specific Integrated Circuit), a PLD (Programmable Logic Device), an FPGA (Field Programmable Gate Array) and so on.
  • the radio base stations 10 and user terminals 20 may be implemented with a computer device that includes a processor (CPU), a communication interface for connecting with networks, a memory and a computer-readable storage medium that holds programs. That is, the radio base stations and user terminals according to one or more embodiments of the present invention may function as computers that execute the processes of the radio communication method of the embodiments of the present invention.
  • the processor and the memory are connected with a bus for communicating information.
  • the computer-readable recording medium is a storage medium such as, for example, a flexible disk, an opto-magnetic disk, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), a CD-ROM (Compact Disc-ROM), a RAM (Random Access Memory), a hard disk and so on.
  • the programs may be transmitted from the network through, for example, electric communication channels.
  • the radio base stations 10 and user terminals 20 may include input devices such as input keys and output devices such as displays.
  • the functional structures of the radio base stations 10 and user terminals 20 may be implemented with the above-described hardware, may be implemented with software modules that are executed on the processor, or may be implemented with combinations of both.
  • the processor controls the whole of the user terminals 20 by running an operating system. Also, the processor reads programs, software modules and data from the storage medium into the memory, and executes various types of processes.
  • reporting of information is by no means limited to the example s/embodiments described in this description, and other methods may be used as well.
  • reporting of information may be implemented by using physical layer signaling (for example, DCI (Downlink Control Information) and UCI (Uplink Control Information)), higher layer signaling (for example, RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, and broadcast information (the MIB (Master Information Block) and SIBs (System Information Blocks))), other signals or combinations of these.
  • RRC signaling may be referred to as “RRC messages,” and can be, for example, an RRC connection setup message, RRC connection reconfiguration message, and so on.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
US15/885,494 2015-07-31 2018-01-31 User terminal, radio base station and radio communication method Abandoned US20190140793A1 (en)

Priority Applications (1)

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US16/597,528 US11418301B2 (en) 2015-07-31 2019-10-09 User terminal and radio communication method

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JP2015-151998 2015-07-31
JP2015151998A JP2017034450A (ja) 2015-07-31 2015-07-31 ユーザ端末、無線基地局及び無線通信方法
PCT/JP2016/072048 WO2017022593A1 (ja) 2015-07-31 2016-07-27 ユーザ端末、無線基地局及び無線通信方法

Related Parent Applications (1)

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US (2) US20190140793A1 (zh)
EP (2) EP3307003A4 (zh)
JP (1) JP2017034450A (zh)
CN (1) CN107926002B (zh)
ES (1) ES2912339T3 (zh)
PT (1) PT3471316T (zh)
SG (1) SG11201710118UA (zh)
WO (1) WO2017022593A1 (zh)

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US11218262B2 (en) * 2017-06-15 2022-01-04 Ntt Docomo, Inc. User terminal and wireless communication method
US20220039088A1 (en) * 2020-08-03 2022-02-03 Samsung Electronics Co., Ltd. Transmitting method and receiving method for control information, user equipment and base station

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US10797748B2 (en) * 2018-02-21 2020-10-06 Qualcomm Incorporated Pairwise cross correlation sequences for non-orthogonal multiple access wireless communications
WO2021087498A1 (en) * 2020-02-05 2021-05-06 Zeku, Inc. Power saving techniques for bb-rf interface
US20220039088A1 (en) * 2020-08-03 2022-02-03 Samsung Electronics Co., Ltd. Transmitting method and receiving method for control information, user equipment and base station

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EP3471316B1 (en) 2022-03-30
US20200044800A1 (en) 2020-02-06
SG11201710118UA (en) 2018-01-30
WO2017022593A1 (ja) 2017-02-09
EP3307003A4 (en) 2018-06-20
US11418301B2 (en) 2022-08-16
EP3471316A1 (en) 2019-04-17
CN107926002B (zh) 2022-11-22
CN107926002A (zh) 2018-04-17
JP2017034450A (ja) 2017-02-09
PT3471316T (pt) 2022-04-20
ES2912339T3 (es) 2022-05-25
EP3307003A1 (en) 2018-04-11

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