WO2018084565A1 - Method and user equipment for transmitting uplink signals - Google Patents

Method and user equipment for transmitting uplink signals Download PDF

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Publication number
WO2018084565A1
WO2018084565A1 PCT/KR2017/012246 KR2017012246W WO2018084565A1 WO 2018084565 A1 WO2018084565 A1 WO 2018084565A1 KR 2017012246 W KR2017012246 W KR 2017012246W WO 2018084565 A1 WO2018084565 A1 WO 2018084565A1
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WO
WIPO (PCT)
Prior art keywords
rrc
tat
connected state
transmission
data
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.)
Ceased
Application number
PCT/KR2017/012246
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English (en)
French (fr)
Inventor
Seungjune Yi
Sunyoung Lee
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.)
LG Electronics Inc
Original Assignee
LG Electronics 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 LG Electronics Inc filed Critical LG Electronics Inc
Priority to JP2019521751A priority Critical patent/JP7107928B2/ja
Priority to CN201780064856.7A priority patent/CN109845382B/zh
Priority to US16/335,391 priority patent/US11706837B2/en
Priority to EP23160089.1A priority patent/EP4216621A1/en
Priority to EP17867202.8A priority patent/EP3556167B1/en
Publication of WO2018084565A1 publication Critical patent/WO2018084565A1/en
Anticipated expiration legal-status Critical
Priority to US17/495,091 priority patent/US12150198B2/en
Priority to JP2022112993A priority patent/JP7395669B2/ja
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
    • 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
    • H04W72/1268—Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink 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
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • H04W74/0838—Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]

Definitions

  • the present invention relates to a wireless communication system, and more particularly, to a method for transmitting uplink signals and an apparatus therefor.
  • LTE 3rd Generation Partnership Project Long Term Evolution
  • FIG. 1 is a view schematically illustrating a network structure of an E-UMTS as an exemplary radio communication system.
  • An Evolved Universal Mobile Telecommunications System (E-UMTS) is an advanced version of a conventional Universal Mobile Telecommunications System (UMTS) and basic standardization thereof is currently underway in the 3GPP.
  • E-UMTS may be generally referred to as a Long Term Evolution (LTE) system.
  • LTE Long Term Evolution
  • next-generation RAT which takes into account such advanced mobile broadband communication, massive MTC (mMCT), and ultra-reliable and low latency communication (URLLC), is being discussed.
  • a method of transmitting, by a user equipment (UE), uplink (UL) signals in a wireless communication system comprises: receiving, by the UE, an UL grant that can be used while the UE is not in RRC_CONNECTED state; receiving, by the UE, a message indicating to leave RRC_CONNECTED state; starting, by the UE, a time alignment timer (I-TAT) when the UE leaves RRC_CONNECTED state; and transmitting, by the UE, UL data using the UL grant if the UL data becomes available for transmission when the UE is not in RRC_CONNECTED state and if the I-TAT is running.
  • I-TAT time alignment timer
  • the UE may receive an indication to restart the I-TAT via system information.
  • the UE may restart the I-TAT if receiving the indication.
  • the I-TAT may be a duration where the UE considers that UL timing is synchronized while the UE is not in RRC_CONNECTED state.
  • the UE can be implemented at low cost/complexity.
  • delay/latency occurring during communication between a user equipment and a BS may be reduced.
  • a cell operating on a primary frequency may be referred to as a primary cell (Pcell) or PCC
  • a cell operating on a secondary frequency may be referred to as a secondary cell (Scell) or SCC.
  • the carrier corresponding to the Pcell on downlink will be referred to as a downlink primary CC (DL PCC)
  • the carrier corresponding to the Pcell on uplink will be referred to as an uplink primary CC (UL PCC).
  • a Scell means a cell that may be configured after completion of radio resource control (RRC) connection establishment and used to provide additional radio resources.
  • the Scell may form a set of serving cells for the UE together with the Pcell in accordance with capabilities of the UE.
  • RRC radio resource control
  • FIG. 3 is a block diagram depicting architecture of a typical E-UTRAN and a typical EPC.
  • an antenna is defined such that a channel carrying a symbol of the antenna can be obtained from a channel carrying another symbol of the same antenna.
  • An RF unit supporting a MIMO function of transmitting and receiving data using a plurality of antennas may be connected to two or more antennas.
  • the UE processor may ontrol the RF unit to transmit the UL data with an identity of the UE using the UL grant when the UE is not in RRC_CONNECTED state.
  • the UE processor may stop the I-TAT when the UE enters RRC_CONNECTED state.
  • the message may include a value for the time alignment timer (I-TAT).

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/KR2017/012246 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals Ceased WO2018084565A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP2019521751A JP7107928B2 (ja) 2016-11-04 2017-11-01 上りリンク信号を送信する方法及び装置
CN201780064856.7A CN109845382B (zh) 2016-11-04 2017-11-01 用于发送上行链路信号的方法和用户设备
US16/335,391 US11706837B2 (en) 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals
EP23160089.1A EP4216621A1 (en) 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals
EP17867202.8A EP3556167B1 (en) 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals
US17/495,091 US12150198B2 (en) 2016-11-04 2021-10-06 Method and user equipment for transmitting uplink signals
JP2022112993A JP7395669B2 (ja) 2016-11-04 2022-07-14 上りリンク信号を送信する方法及び装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201662417349P 2016-11-04 2016-11-04
US62/417,349 2016-11-04

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/335,391 A-371-Of-International US11706837B2 (en) 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals
US17/495,091 Continuation US12150198B2 (en) 2016-11-04 2021-10-06 Method and user equipment for transmitting uplink signals

Publications (1)

Publication Number Publication Date
WO2018084565A1 true WO2018084565A1 (en) 2018-05-11

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Application Number Title Priority Date Filing Date
PCT/KR2017/012246 Ceased WO2018084565A1 (en) 2016-11-04 2017-11-01 Method and user equipment for transmitting uplink signals

Country Status (5)

Country Link
US (2) US11706837B2 (https=)
EP (2) EP3556167B1 (https=)
JP (2) JP7107928B2 (https=)
CN (1) CN109845382B (https=)
WO (1) WO2018084565A1 (https=)

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CN112690027A (zh) * 2018-09-20 2021-04-20 凯迪迪爱通信技术有限公司 终端设备在待机状态下进行通信的无线通信系统中的终端设备、基站设备、通信方法和程序
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GB2599158A (en) * 2020-09-28 2022-03-30 Nec Corp Communication system
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Publication number Publication date
EP3556167A4 (en) 2020-06-10
JP2022137217A (ja) 2022-09-21
US11706837B2 (en) 2023-07-18
CN109845382A (zh) 2019-06-04
CN109845382B (zh) 2024-01-23
EP3556167B1 (en) 2023-04-19
JP7395669B2 (ja) 2023-12-11
JP2019533374A (ja) 2019-11-14
US20220030660A1 (en) 2022-01-27
EP4216621A1 (en) 2023-07-26
US20190289660A1 (en) 2019-09-19
JP7107928B2 (ja) 2022-07-27
US12150198B2 (en) 2024-11-19
EP3556167A1 (en) 2019-10-23

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