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NZ756839B2 - User terminal and radio communication method - Google Patents

User terminal and radio communication method

Info

Publication number
NZ756839B2
NZ756839B2 NZ756839A NZ75683917A NZ756839B2 NZ 756839 B2 NZ756839 B2 NZ 756839B2 NZ 756839 A NZ756839 A NZ 756839A NZ 75683917 A NZ75683917 A NZ 75683917A NZ 756839 B2 NZ756839 B2 NZ 756839B2
Authority
NZ
New Zealand
Prior art keywords
shared channel
slot
downlink shared
slots
downlink
Prior art date
Application number
NZ756839A
Other versions
NZ756839A (en
Inventor
Satoshi Nagata
Kazuki Takeda
Lihui Wang
Original Assignee
Ntt Docomo Inc
Filing date
Publication date
Application filed by Ntt Docomo Inc filed Critical Ntt Docomo Inc
Priority claimed from PCT/JP2017/008373 external-priority patent/WO2018158923A1/en
Publication of NZ756839A publication Critical patent/NZ756839A/en
Publication of NZ756839B2 publication Critical patent/NZ756839B2/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1864—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/189—Transmission or retransmission of more than one copy of a message
    • 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 signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/04—Error control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/12—Wireless traffic scheduling
    • H04W72/1263—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

order to transmit and/or receive adequately data even when data scheduling methods that are different from those of existing LTE systems are applied, a terminal is proposed comprising: a receiving section configured to receive downlink control information for scheduling a downlink shared channel, the downlink control information including a first field that is associated with a first number of slots from an ending slot of downlink shared channel reception to a slot of Hybrid Automatic Repeat reQuest (HARQ)-Acknowledgement (ACK) information transmission for the downlink shared channel; the downlink control information including a second field that is associated with a second number of slots from a slot of downlink control information reception to a slot of the downlink shared channel reception; and a control section configured to determine the slot of the downlink shared channel reception based on the second number, wherein the receiving section is further configured to receive a higher layer signaling indicating a third number of consecutive slots for the downlink shared channel; the control section is further configured to determine the slot for the HARQ-ACK information transmission based on the first number, the second number, and the third number; one transport block is transmitted in the downlink shared channel in the consecutive slots; the one transport block is repeated in each of the consecutive slots; and different redundancy versions are applied to the consecutive slots.

Claims (7)

1. A terminal comprising: a receiving section configured to receive downlink control information for 5 scheduling a downlink shared channel, the downlink control information including a first field that is associated with a first number of slots from an ending slot of downlink shared channel reception to a slot of Hybrid Automatic Repeat reQuest (HARQ)-Acknowledgement (ACK) information transmission for the downlink shared channel, the downlink control information including a second field that is 10 associated with a second number of slots from a slot of downlink control information reception to a slot of the downlink shared channel reception; and a control section configured to determine the slot of the downlink shared channel reception based on the second number, wherein: 15 the receiving section is further configured to receive a higher layer signaling indicating a third number of consecutive slots for the downlink shared channel, the control section is further configured to determine the slot for the HARQ-ACK information transmission based on the first number, the second 20 number, and the third number, one transport block is transmitted in the downlink shared channel in the consecutive slots, the one transport block is repeated in each of the consecutive slots, and different redundancy versions are applied to the consecutive slots.
2. The terminal according to claim 1, wherein the first field indicates the first number.
3. The terminal according to claim 1, wherein the receiving section is further configured to receive a plurality of values of the first number via higher layer signaling, and the first field indicates one of the plurality of values.
4. The terminal according to claim 1, wherein the control section is further configured to control to transmit, in one slot that is the first number of slots after an ending slot of the consecutive slots, HARQ-ACK information for the downlink shared channel reception over the consecutive slots.
5. A radio communication method for a terminal, comprising: receiving downlink control information for scheduling a downlink shared channel, the downlink control information including a first field that is associated with a first number of slots from an ending slot of downlink shared channel 15 reception to a slot of Hybrid Automatic Repeat reQuest (HARQ)-Acknowledgement (ACK) information transmission for the downlink shared channel, the downlink control information including a second field that is associated with a second number of slots from a slot of downlink control information reception to a slot of the downlink shared channel reception; and 20 determining the slot of the downlink shared channel reception based on the second number, wherein: the receiving further comprises receiving a higher layer signaling indicating a third number of consecutive slots for the downlink shared channel, 25 the determining further comprises determining the slot for the HARQ-ACK information transmission based on the first number, the second number, and the third number, one transport block is transmitted in the downlink shared channel in the consecutive slots, the one transport block is repeated in each of the consecutive slots, and different redundancy versions are applied to the consecutive slots; and 5 HARQ-ACK information for the downlink shared channel reception over the consecutive slots is transmitted in one slot that is the first number of slots after an ending slot of the consecutive slots.
6. A base station comprising: 10 a transmitting section configured to transmit downlink control information for scheduling a downlink shared channel, the downlink control information including a first field that is associated with a first number of slots from an ending slot of downlink shared channel transmission to a slot of Hybrid Automatic Repeat reQuest Acknowledgement, HARQ-ACK, information reception for the downlink 15 shared channel, the downlink control information including a second field that is associated with a second number of slots from a slot of downlink control information transmission to a slot of the downlink shared channel transmission; a control section configured to determine the slot of the downlink shared 20 channel transmission based on the second number, wherein: the transmitting section is further configured to transmit a higher layer signaling indicating a third number of consecutive slots for the downlink shared channel, 25 the control section is further configured to determine the slot for the HARQ-ACK information reception based on the first number, the second number, and the third number, one transport block is transmitted in the downlink shared channel in the consecutive slots, the one transport block is repeated in each of the consecutive slots, and different redundancy versions are applied to the consecutive slots.
7. A system comprising a terminal according to any of claims 1-4 and a base station according to claim 6.
NZ756839A 2017-03-02 User terminal and radio communication method NZ756839B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/008373 WO2018158923A1 (en) 2017-03-02 2017-03-02 User terminal and wireless communication method

Publications (2)

Publication Number Publication Date
NZ756839A NZ756839A (en) 2023-12-22
NZ756839B2 true NZ756839B2 (en) 2024-03-26

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