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WO2018048110A1 - Procédé d'émission/réception d'un canal de commande de liaison montante dans une structure de trame d'intervalle de temps de transmission court et dispositif associé - Google Patents

Procédé d'émission/réception d'un canal de commande de liaison montante dans une structure de trame d'intervalle de temps de transmission court et dispositif associé Download PDF

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Publication number
WO2018048110A1
WO2018048110A1 PCT/KR2017/008734 KR2017008734W WO2018048110A1 WO 2018048110 A1 WO2018048110 A1 WO 2018048110A1 KR 2017008734 W KR2017008734 W KR 2017008734W WO 2018048110 A1 WO2018048110 A1 WO 2018048110A1
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WIPO (PCT)
Prior art keywords
terminal
offset value
transmitting
uplink control
control channel
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PCT/KR2017/008734
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English (en)
Korean (ko)
Inventor
김기태
박규진
최우진
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KT Corp
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KT Corp
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Priority claimed from KR1020170098820A external-priority patent/KR102120856B1/ko
Application filed by KT Corp filed Critical KT Corp
Priority to US16/331,969 priority Critical patent/US11115976B2/en
Priority to CN201780055337.4A priority patent/CN109691000B/zh
Publication of WO2018048110A1 publication Critical patent/WO2018048110A1/fr
Anticipated expiration legal-status Critical
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    • 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
    • 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

Definitions

  • the present embodiments relate to a method of transmitting and receiving a frame structure based uplink control channel having a short transmission time interval in a 3GPP LTE / LTE-Advanced system.
  • the frame of the short transmission time interval may be composed of two, four, or seven symbols, the frame structure of the uplink and downlink may be configured differently from each other.
  • uplink and downlink frame structures are different, there is a problem that a collision may occur when transmitting an uplink control channel for a downlink data channel.
  • An object of the present embodiments is to provide a method for establishing a linkage of an uplink control channel to a downlink data channel in a frame structure of a short transmission time interval.
  • An object of the present embodiments is to provide a method for preventing a collision of transmission resources and transmitting and receiving an uplink control channel when transmitting an uplink control channel for a downlink data channel in a frame structure of a short transmission time interval.
  • the present invention in the method for transmitting an uplink control channel in a frame structure of a short transmission time interval, receiving a downlink data channel through a frame of a short transmission time interval from the base station, and downlink Receiving an offset value set for each terminal to transmit an uplink control channel for a data channel through an upper layer signal, and a method for transmitting an uplink control channel through a resource determined based on the offset value.
  • the present embodiment in the method for receiving an uplink control channel in a frame structure of a short transmission time interval, transmitting a downlink data channel through a frame of a short transmission time interval to the terminal, and downlink
  • the present invention provides a method of transmitting an uplink control channel for a data channel through an upper layer signal, and an uplink control channel through a resource determined based on the offset value.
  • the present embodiment in a terminal for transmitting an uplink control channel in a frame structure of a short transmission time interval, receiving a downlink data channel through a frame of a short transmission time interval from the base station, and downlink data channel
  • a receiver for receiving an offset value set for each UE through an upper layer signal to transmit an uplink control channel for the UE, and determine a resource for transmission of an uplink control channel based on the offset value and transmit an uplink control channel. It provides a terminal including a control unit.
  • the present embodiment in a base station receiving an uplink control channel in a frame structure of a short transmission time interval, and transmits a downlink data channel through a frame of a short transmission time interval to the terminal, the downlink data channel
  • an offset value for uplink control channel resource setting for a downlink data channel is signaled to a terminal in a frame structure of a short transmission time interval, thereby preventing overlapping of resources for uplink control channel transmission. And transmit an uplink control channel.
  • FIG. 1 is a diagram illustrating processing delays of an eNB and a UE and HARQ RTT (eNB and UE processing delays and HARQ RTT).
  • FIG. 2 is a diagram illustrating resource mapping per PRB in one subframe in one subframe.
  • FIG. 3 is a diagram illustrating PHICH processing (Normal CP case in LTE / LTE-Advanced) of a general CP case in LTE / LTE-Advanced.
  • 5 is a conceptual diagram of a legacy PUCCH configuration.
  • FIG. 6 is a diagram illustrating an example of setting sPDSCH and sPUCCH linkage based on sTTI frame structure of the same symbol length.
  • FIG. 7 is a diagram illustrating an example of configuring sPDSCH and sPUCCH linkage based on sTTI frame structure having different symbol lengths.
  • FIG. 8 is a diagram illustrating a procedure of a method of transmitting an sPUCCH in an sTTI frame structure according to the present embodiments.
  • FIG. 9 is a diagram illustrating a process of a method of receiving an sPUCCH in an sTTI frame structure according to the present embodiments.
  • FIG. 10 is a diagram illustrating a configuration of a base station according to the present embodiments.
  • FIG. 11 is a diagram illustrating a configuration of a user terminal according to the present embodiments.
  • the MTC terminal may mean a terminal supporting low cost (or low complexity) or a terminal supporting coverage enhancement.
  • the MTC terminal may mean a terminal supporting low cost (or low complexity) and coverage enhancement.
  • the MTC terminal may mean a terminal defined in a specific category for supporting low cost (or low complexity) and / or coverage enhancement.
  • the MTC terminal may mean a newly defined 3GPP Release-13 low cost (or low complexity) UE category / type for performing LTE-based MTC related operations.
  • the MTC terminal supports enhanced coverage compared to the existing LTE coverage, or supports UE category / type defined in the existing 3GPP Release-12 or lower, or newly defined Release-13 low cost (or lower power consumption).
  • low complexity can mean UE category / type.
  • the wireless communication system in the present invention is widely deployed to provide various communication services such as voice, packet data, and the like.
  • the wireless communication system includes a user equipment (UE) and a base station (base station, BS, or eNB).
  • a user terminal is a generic concept meaning a terminal in wireless communication.
  • user equipment (UE) in WCDMA, LTE, and HSPA, as well as mobile station (MS) in GSM, user terminal (UT), and SS It should be interpreted as a concept that includes a subscriber station, a wireless device, and the like.
  • a base station or a cell generally refers to a station that communicates with a user terminal, and includes a Node-B, an evolved Node-B, an Sector, a Site, and a BTS.
  • Other terms such as a base transceiver system, an access point, a relay node, a remote radio head (RRH), a radio unit (RU), and a small cell may be called.
  • RRH remote radio head
  • RU radio unit
  • a base station or a cell is a generic meaning indicating some areas or functions covered by a base station controller (BSC) in CDMA, a Node-B in WCDMA, an eNB or a sector (site) in LTE, and the like. It should be interpreted as, and it is meant to cover all the various coverage areas such as megacell, macrocell, microcell, picocell, femtocell and relay node, RRH, RU, small cell communication range.
  • BSC base station controller
  • the base station may be interpreted in two senses. i) the device providing the megacell, the macrocell, the microcell, the picocell, the femtocell, the small cell in relation to the wireless area, or ii) the wireless area itself. In i) all devices which provide a given wireless area are controlled by the same entity or interact with each other to cooperatively configure the wireless area to direct the base station.
  • the base station may indicate the radio area itself to receive or transmit a signal from the viewpoint of the user terminal or the position of a neighboring base station.
  • megacells macrocells, microcells, picocells, femtocells, small cells, RRHs, antennas, RUs, low power nodes (LPNs), points, eNBs, transmit / receive points, transmit points, and receive points are collectively referred to as base stations. do.
  • the user terminal and the base station are two transmitting and receiving entities used to implement the technology or technical idea described in this specification in a comprehensive sense and are not limited by the terms or words specifically referred to.
  • the user terminal and the base station are two types of uplink or downlink transmitting / receiving subjects used to implement the technology or the technical idea described in the present invention, and are used in a generic sense and are not limited by the terms or words specifically referred to.
  • the uplink (Uplink, UL, or uplink) refers to a method for transmitting and receiving data to the base station by the user terminal
  • the downlink (Downlink, DL, or downlink) means to transmit and receive data to the user terminal by the base station It means the way.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • OFDM-FDMA OFDM-TDMA
  • OFDM-CDMA OFDM-CDMA
  • One embodiment of the present invention can be applied to resource allocation in the fields of asynchronous wireless communication evolving to LTE and LTE-Advanced through GSM, WCDMA, HSPA, and synchronous wireless communication evolving to CDMA, CDMA-2000 and UMB.
  • the present invention should not be construed as being limited or limited to a specific wireless communication field, but should be construed as including all technical fields to which the spirit of the present invention can be applied.
  • the uplink transmission and the downlink transmission may use a time division duplex (TDD) scheme that is transmitted using different times, or may use a frequency division duplex (FDD) scheme that is transmitted using different frequencies.
  • TDD time division duplex
  • FDD frequency division duplex
  • a standard is configured by configuring uplink and downlink based on one carrier or a pair of carriers.
  • the uplink and the downlink include a Physical Downlink Control CHannel (PDCCH), a Physical Control Format Indicator CHannel (PCFICH), a Physical Hybrid ARQ Indicator CHannel (PHICH), a Physical Uplink Control CHannel (PUCCH), an Enhanced Physical Downlink Control CHannel (EPDCCH), and the like.
  • Control information is transmitted through the same control channel, and data is configured by a data channel such as a physical downlink shared channel (PDSCH) and a physical uplink shared channel (PUSCH).
  • PDSCH physical downlink shared channel
  • PUSCH physical uplink shared channel
  • control information may also be transmitted using an enhanced PDCCH (EPDCCH or extended PDCCH).
  • EPDCCH enhanced PDCCH
  • extended PDCCH extended PDCCH
  • a cell means a component carrier having a coverage of a signal transmitted from a transmission / reception point or a signal transmitted from a transmission point or a transmission / reception point, and the transmission / reception point itself. Can be.
  • a wireless communication system to which embodiments are applied may be a coordinated multi-point transmission / reception system (CoMP system) or a coordinated multi-antenna transmission scheme in which two or more transmission / reception points cooperate to transmit a signal.
  • antenna transmission system a cooperative multi-cell communication system.
  • the CoMP system may include at least two multiple transmission / reception points and terminals.
  • the multiple transmit / receive point is at least one having a base station or a macro cell (hereinafter referred to as an eNB) and a high transmission power or a low transmission power in a macro cell region, which is wired controlled by an optical cable or an optical fiber to the eNB. May be RRH.
  • an eNB a base station or a macro cell
  • a high transmission power or a low transmission power in a macro cell region which is wired controlled by an optical cable or an optical fiber to the eNB. May be RRH.
  • downlink refers to a communication or communication path from a multiple transmission / reception point to a terminal
  • uplink refers to a communication or communication path from a terminal to multiple transmission / reception points.
  • a transmitter may be part of multiple transmission / reception points, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal, and a receiver may be part of multiple transmission / reception points.
  • a situation in which a signal is transmitted and received through a channel such as a PUCCH, a PUSCH, a PDCCH, an EPDCCH, and a PDSCH may be described in the form of 'sending and receiving a PUCCH, a PUSCH, a PDCCH, an EPDCCH, and a PDSCH.
  • a description of transmitting or receiving a PDCCH or transmitting or receiving a signal through the PDCCH may be used as a meaning including transmitting or receiving an EPDCCH or transmitting or receiving a signal through the EPDCCH.
  • the physical downlink control channel described below may mean PDCCH or EPDCCH, and may also be used to include both PDCCH and EPDCCH.
  • the EPDCCH which is an embodiment of the present invention, may be applied to the portion described as the PDCCH, and the PDCCH may be applied to the portion described as the EPDCCH as an embodiment of the present invention.
  • high layer signaling described below includes RRC signaling for transmitting RRC information including an RRC parameter.
  • the eNB performs downlink transmission to the terminals.
  • the eNB includes downlink control information and an uplink data channel (eg, a physical downlink shared channel (PDSCH), which is a primary physical channel for unicast transmission, and scheduling required to receive the PDSCH.
  • a physical downlink control channel (PDCCH) for transmitting scheduling grant information for transmission on a physical uplink shared channel (PUSCH) may be transmitted.
  • PUSCH physical uplink shared channel
  • Latency reduction Study Items were approved at the RAN plenary # 69 meeting [1].
  • the main purpose of latency reduction is to standardize shorter TTI operations to improve TCP throughput.
  • RAN2 has already performed performance verification on short TTI [2].
  • Latency reduction can be achieved by the following physical layer techniques:
  • PDCCH and legacy PDSCH are used for scheduling
  • o UE is expected to receive a sPDSCH at least for downlink unicast
  • ⁇ sPDSCH refers PDSCH carrying data in a short TTI
  • o UE is expected to receive PDSCH for downlink unicast
  • FFS Other multiplexing method (s) with existing non-sTTI for UE supporting latency reduction features
  • the LTE U-plane one-way latency for a scheduled UE consists of the fixed node processing delays and 1 TTI duration for transmission, as shown in Figure 1.Assuming the processing times can be scaled by the same factor of TTI reduction keeping the same number of HARQ processes, the one way latency can be calculated as
  • steps 1-4 and half delay of step 5 is assumed to be due to SR, and rest is assumed for UL data transmission in values shown in Table 4
  • the resource map above is the legacy resource mapping per PRB in one subframe, considering 2 Antenna ports and 2 OFDM symbols control field.
  • the resource map below is the short TTI resource mapping, considering 2 OFDM symbols used for the control field in order to ensure the backward compatibility.
  • the loss rates ( , eg 5%-50%) of the PHY layer in short TTI duration are assumed.
  • the loss rate of PHY layer for legacy PDSCH is calculated as follows:
  • the TBS of short TTI PDSCH is calculated as the following table:
  • the DL control channel for sending a response to the PUSCH reception to the UE is PHICH.
  • the eNB operates the PHICH for the purpose of delivering the Ack / Nack for the uplink data channel to the UE.
  • bit information '1' or '-1' representing Ack or Nack is spread with orthogonal code and mapped to Physical 12 REs.
  • the PHICH resource allocated to the terminals is Represented by the orthogonal sequence A RE set in which the sequences are multiplexed. It is called.
  • PHICH is the Lowest PRB index of PUSCH ( )
  • UL DMRS Implicitly determined based on the cyclic shift value. See below for a detailed description.
  • the PHICH resource is identified by the index pair where is the PHICH group number and is the orthogonal sequence index within the group as defined by:
  • ⁇ is mapped from the cyclic shift for DMRS field (according to Table 3) in the most recent PDCCH / EPDCCH with uplink DCI format [4] for the transport block (s) associated with the corresponding PUSCH transmission. shall be set to zero, if there is no PDCCH / EPDCCH with uplink DCI format for the same transport block, and
  • ⁇ is the spreading factor size used for PHICH modulation as described in subclause 6.9.1 in [3].
  • ⁇ is the number of PHICH groups configured by higher layers as described in subclause 6.9 of [3],
  • the UL control channel for transmitting a response to the PDSCH to the base station by the UE is PUCCH.
  • the terminal uses various formats of PUCCH formats to deliver Ack / Nack and CQI information for the downlink data channel to the eNB.
  • the resource allocation is applied to OCC (spreading) + CS (cyclic shift) based on formats 1a and 1b.
  • the existing PUCCH is set to 3 symbols RS and 4 symbols A / N on a slot basis.
  • This proposal proposes CS-based A / N multiplexing resource allocation of Zadoff-Chu (ZC) sequences excluding the existing OCC in consideration of the small number of symbols in the sPUCCH. At this time, unlike the existing structure, OCC spreading is not used.
  • ZC Zadoff-Chu
  • ZC sequence is basically RS below Cyclic shift defined in Defined by value (see TS 36.211).
  • PUCCH format 1a / b performs dynamic resource allocation, and basically performs the following dynamic allocation based on the CCE index of the scheduled PDCCH.
  • PUCCH resource index for Ack / Nack Is the lowest CCE index of the PDCCH used for DCI transmission used for downlink resource allocation. From the upper layer Determined by From here After all, means a kind of shift value set so that the PUCCH format 1a / 1b can be separated from other PUCCH format 2/3/4.
  • Frame structure type 1 [RAN1, RAN2, RAN4]
  • ⁇ Specify support for a transmission duration based on 2-symbol sTTI and 1-slot sTTI for sPDSCH / sPDCCH
  • ⁇ Specify support for a transmission duration based on 2-symbol sTTI, 4-symbol sTTI, and 1-slot sTTI for sPUCCH / sPUSCH
  • n + 3 a minimum timing n + 3 is supported for UL grant to UL data and for DL data to DL HARQ for UEs capable of operating with reduced processing time with only the following conditions:
  • Reduced processing time (s) are RRC configured for the UE
  • the present invention provides a method for establishing Ack / Nack linkage of sPUCCH and a specific operation method for sPDSCH (short TTI based PUSCH).
  • the short TTI may consist of a set of 2, 4, and 7 symbols.
  • the configuration of the sPUCCH that delivers the A / N feedback of the short TTI frame structure based sPDSCH should be different from the conventional one. This is because the conventional PUCCH is determined based on 14 OFDM symbols, whereas the existing A / N multiplexing scheme cannot be applied to a smaller sTTI based sPUCCH.
  • the number of short TTI symbols of UL / DL is defined as follows based on the work scope.
  • ⁇ sPUCCH / sPUSCH 2-symbol sTTI, 4-symbol sTTI, and 1-slot sTTI
  • the number of symbols of the frame in which the sPDSCH / sPDCCH is transmitted and the number of symbols in the frame in which the sPUCCH / sPUSCH is transmitted may be the same or may be set differently.
  • the number of symbols of the frame in which the sPUCCH for transmitting the Ack / Nack for the sPDSCH transmission is transmitted may be the same as or different from the number of symbols in the frame in which the sPDSCH is transmitted.
  • FIG. 6 illustrates a case in which an sTTI structure in which an sPDSCH is transmitted is identical to an sTTI structure in which an sPUCCH is transmitted for an sPDSCH
  • FIG. 7 illustrates a case in which an sTTI structure in which an sPDSCH is transmitted is different from an sTTI structure in which an sPUCCH is transmitted.
  • the sPDSCH and the corresponding sPUCCH have the same sTTI structure
  • the sPDSCH and sPUCCH link formation as shown in FIG. 6 may be formed.
  • sPDSCH and the corresponding sPUCCH have different sTTI structures
  • sPDSCH and sPUCCH link formation as shown in FIG. 7 may be formed.
  • the sTTI on which the sPDSCH is transmitted is composed of two symbols, and the sTTI on which the sPUCCH for transmitting Ack / Nack for the sPDSCH is configured is four symbols, as shown in FIG. 7, the sPUCCH is transmitted. There may be a situation where overlapping resources are overlapped.
  • sPDCCH can be transmitted for each sTTI.
  • the terminal performing continuous sPDSCH reception may use the same resource allocation index, which may cause sPUCCH resource collision. have. That is, according to the situation, the lowest CCE index of sPDCCH A situation may arise where may be equal.
  • shift value is a cell-specific value
  • all terminals in the cell have the same value (RRC message). Therefore, in order not to cause a conflict in resource allocation of sPUCCH, In addition, additional shift value should be set.
  • the present embodiments provide a concrete scheme for link establishment of an sPUCCH for sPDSCH and Ack / Nack transmission, and provide a scheme for avoiding collision when sPUCCH resource allocation.
  • Example One sPDSCH DL sent sTTI Using the index sPUCCH Allocate resources.
  • the value is based on the index of the sTTI in which the sPDSCH is transmitted.
  • the pattern according to the index change of the DL sTTI can be defined and linked in advance.
  • sPDSCHs sent from different sTTIs can transmit Ack / Nack to the base station without colliding with the same sPUCCH through the proposed method.
  • each resource is allocated the following sPUCCH resources.
  • the sPUCCH resource indexes used by UE # 0 and UE # 1 are changed so that no collision occurs.
  • sPDSCH transmits DL sTTI Individual shift value per ' 'Is used as an additional shift value for resource allocation of sPUCCH.
  • the shift value used for sPUCCH resource allocation This is to determine differently for each DL sTTI.
  • the eNB determines the corresponding value for each sPDSCH rather than using the DL sTTI index directly as a shift value of sPUCCH resource allocation. Therefore, the information needs to be delivered to the terminal. Since the effects of the proposed method are the same as those of Embodiment 1, the following description is omitted.
  • Example 2-1 Shift value " 'Is delivered to the terminal through dynamic signaling .
  • sPUCCH resource allocation shift value Provides a method of delivering information through dynamic signaling.
  • the DCI format for transmitting the sPDSCH resource allocation information should include a field of the corresponding information.
  • DCI format 1As Existing field + sPUCCH field
  • DCI format 1Bs Existing field + sPUCCH field
  • DCI format 2As Existing field + sPUCCH field
  • the added PUCCH field may be set to 'N' bits, and its value may be set to various lengths such as 2, 3, 4,... E.g ' If 'is set to 2 bits, Ack / Nack of a total of four sPDSCHs can be allocated to the sPUCCH without collision.
  • Example 2-2 Shift value " 'Is delivered to the terminal through RRC signaling (or higher layer signaling ) .
  • the principle of the present proposal is the same as the effect of the above-mentioned dynamic signaling, except that the RRC signaling must transfer the shift values for several sPDSCH at once.
  • the period in which the RRC signaling is transmitted is most suitable but a multiple of the existing subframe period is not limited thereto.
  • sPUCCH shift values of M sTTIs are transmitted at once.
  • RRC signaling it is basically possible to reuse the previous sPUCCH shift value as it is.
  • sPDSCH transmits DL sTTI Stars individual Define as to use as additional shift value for resource allocation of sPUCCH.
  • the basic principle of the present proposal is the same as in the second embodiment, but is transmitted through RRC signaling. Is to change by sTTI.
  • RRC information generation for sTTI is additionally required, and for example, RRC message generation such as sPUCCH_Config (based on TS 36.331) is additionally required.
  • the sPUCCH shift value transmitted to each sTTI can be changed as shown in the following table.
  • UE # 0 and UE # 1 have been transmitted with sPDSCH # 0 and sPDSCH # 1 in DL sTTI index # 0 and # 1 of Table 5, respectively.
  • the sPUCCH resource indexes used by UE # 0 and UE # 1 are changed so that no collision occurs.
  • the present invention proposes an sPUCCH A / N feedback method of an sTTI based sPDSCH.
  • a feedback method is described for A / N of sTTI-based sPUCCH, and the method can be applied to similar signals and channels as it is, and its application is not limited only to a new frame structure.
  • FIG. 8 illustrates a process of a method of performing sPUCCH transmission in an sTTI frame structure according to the embodiments.
  • the terminal receives a downlink data channel (sPDSCH) in an sTTI frame structure from the base station (S800).
  • sPDSCH downlink data channel
  • the sTTI frame in which the sPDSCH is received may be a frame composed of two, four, or seven symbols.
  • the terminal receives an offset value for sPUCCH link establishment associated with the sPDSCH from the base station through higher layer signaling (S810).
  • the sPUCCH associated with the sPDSCH may be an uplink control channel for Ack / Nack transmission for sPDSCH reception.
  • the UE receives an offset value required for sPUCCH configuration for Ack / Nack transmission for sPDSCH reception through higher layer signaling, and for example, may be received through RRC signaling.
  • the offset value received by the terminal through higher layer signaling is an offset value set for each sPDSCH transmitted by the base station and may be an offset value set for sPUCCH resource allocation for each terminal.
  • the terminal When the terminal receives an offset value through higher layer signaling from the base station, the terminal configures a resource for sPUCCH transmission using the offset value (S820).
  • the sPUCCH for receiving the sPDSCH is transmitted to the base station through the configured resource (S830).
  • a specific scheme for establishing an sPUCCH link for Ack / Nack transmission for an sPDSCH in an sTTI frame structure is provided.
  • by transmitting an offset value set for each UE through higher layer signaling even when the downlink sTTI frame structure and the uplink sTTI frame structure are different, collisions between sPUCCH transmission resources do not occur.
  • FIG. 9 illustrates a process of a method of allocating an sPUCCH transmission resource and receiving an sPUCCH in an sTTI frame structure according to the present embodiments.
  • the base station transmits the sPDSCH to the terminal in the sTTI frame structure (S900).
  • the base station transmits an offset value used for sPUCCH resource configuration for Ack / Nack reception for the sPDSCH to the terminal through higher layer signaling (eg, RRC signaling) (S910).
  • higher layer signaling eg, RRC signaling
  • the base station sets an offset value for sPUCCH resource allocation for each terminal receiving the sPDSCH and transmits the set offset value to the terminal. Accordingly, the terminal may perform sPUCCH resource allocation for Ack / Nack transmission for sPDSCH reception using an offset value set for each terminal received from the base station.
  • the terminal transmits the sPUCCH through the resource set using the offset value received from the base station, the base station receives the sPUCCH for the sPDSCH (S920).
  • the base station transmits an offset value for configuring the sPUCCH for each terminal through higher layer signaling, thereby enabling the terminal to configure the sPUCCH link for the sPDSCH.
  • the collision of the sPUCCH resources does not occur.
  • FIG. 10 is a diagram illustrating a configuration of a base station 1000 according to the present embodiments.
  • the base station 1000 includes a controller 1010, a transmitter 1020, and a receiver 1030.
  • the controller 1010 controls the overall operation of the base station 1000 according to the Ack / Nack connection associated with the sPDSCH in the short TTI frame structure according to the present invention described above.
  • the UE-specific offset value used to configure the sPUCCH transmission resource for Ack / Nack transmission for the sPDSCH is transmitted to the UE through higher layer signaling (eg, RRC signaling).
  • the UE can configure the sPUCCH link for Ack / Nack transmission for the sPDSCH reception.
  • the transmitter 1020 and the receiver 1030 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
  • FIG. 11 is a diagram illustrating a configuration of a user terminal 1100 according to the present embodiments.
  • the user terminal 1100 includes a receiver 1110, a controller 1120, and a transmitter 1130.
  • the receiver 1110 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • controller 1120 controls the overall operation of the user terminal 1100 according to the Ack / Nack connection associated with the sPDSCH in the short TTI frame structure according to the present invention described above.
  • the controller 1120 checks an offset value for sPUCCH transmission resource setting received through the higher layer signal from the base station. Then, a resource for Ack / Nack transmission for sPDSCH reception is set based on the offset value, and the sPUCCH is transmitted through the corresponding resource.
  • the transmitter 1130 transmits uplink control information, data, and a message to a base station through a corresponding channel.

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  • Mobile Radio Communication Systems (AREA)

Abstract

Les modes de réalisation de l'invention proposent un procédé de transmission d'un accusé de réception/accusé de réception négatif (Ack/Nack) d'un canal de commande de liaison montante physique court (sPUCCH) en réponse à la réception d'un canal partagé de liaison descendante physique court (sPDSCH) basé sur un intervalle de temps de transmission (TTI) dans un système avancé (LTE) / LTE 3GG. Spécifiquement, dans ces modes de réalisation, une station de base établit, pour chaque terminal, une valeur de décalage pour établir une liaison entre un sPDSCH et un sPUCCH, et transmet la valeur de décalage établie au terminal par l'intermédiaire d'une signalisation de couche supérieure (signalisation RRC)), permettant ainsi à un terminal d'utiliser la valeur de décalage pour attribuer des ressources de sPUCCH pour la transmission d'un Ack/Nack en réponse à la réception de sPDSCH.
PCT/KR2017/008734 2016-09-09 2017-08-11 Procédé d'émission/réception d'un canal de commande de liaison montante dans une structure de trame d'intervalle de temps de transmission court et dispositif associé Ceased WO2018048110A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US16/331,969 US11115976B2 (en) 2016-09-09 2017-08-11 Method for transmitting/receiving uplink control channel in frame structure of short transmission time interval and device therefor
CN201780055337.4A CN109691000B (zh) 2016-09-09 2017-08-11 在短传输时间间隔的帧结构中发送/接收上行链路控制信道的方法及其设备

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20160116784 2016-09-09
KR10-2016-0116784 2016-09-09
KR1020170098820A KR102120856B1 (ko) 2016-09-09 2017-08-04 짧은 전송 시간 간격의 프레임 구조에서 상향링크 제어 채널을 송수신하는 방법 및 그 장치
KR10-2017-0098820 2017-08-04

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WO2018048110A1 true WO2018048110A1 (fr) 2018-03-15

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016040290A1 (fr) * 2014-09-08 2016-03-17 Interdigital Patent Holdings, Inc. Systèmes et procédés de commande avec différentes durées d'intervalles de temps de transmission (tti)
US20160226639A1 (en) * 2015-01-29 2016-08-04 Gang Xiong System and methods for support of frequency hopping for ues with reduced bandwidth support

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016040290A1 (fr) * 2014-09-08 2016-03-17 Interdigital Patent Holdings, Inc. Systèmes et procédés de commande avec différentes durées d'intervalles de temps de transmission (tti)
US20160226639A1 (en) * 2015-01-29 2016-08-04 Gang Xiong System and methods for support of frequency hopping for ues with reduced bandwidth support

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Short TTI for DL Transmissions", R1-160292, 3GPP TSG RAN WG1 MEETING #84, 6 February 2016 (2016-02-06), St. Julian's, Malta, XP051064110 *
LG ELECTRONICS ET AL.: "WF on PUCCH Resource Allocation for Shortened Processing Time for 1ms TTI", R1-168232, 3GPP TSG RAN1 #86, 28 August 2016 (2016-08-28), Gothenburg, Sweden, XP051143897 *
ZTE CORP. ET AL.: "HARQ with Shortened Processing Time for 1ms TTI'', R1-167577", 3GPP TSG RAN WG1 MEETING #86, 12 August 2016 (2016-08-12), Gothenburg, Sweden, XP051140730 *

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