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WO2014182009A1 - Procédé permettant d'émettre et de recevoir un signal de réponse et appareil associé - Google Patents

Procédé permettant d'émettre et de recevoir un signal de réponse et appareil associé Download PDF

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Publication number
WO2014182009A1
WO2014182009A1 PCT/KR2014/003921 KR2014003921W WO2014182009A1 WO 2014182009 A1 WO2014182009 A1 WO 2014182009A1 KR 2014003921 W KR2014003921 W KR 2014003921W WO 2014182009 A1 WO2014182009 A1 WO 2014182009A1
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WIPO (PCT)
Prior art keywords
subframe
scheduling grant
base station
epdcch
pdcch
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Ceased
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PCT/KR2014/003921
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English (en)
Korean (ko)
Inventor
노민석
최우진
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KT Corp
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KT Corp
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Priority claimed from KR20130155522A external-priority patent/KR20140131852A/ko
Priority claimed from KR1020130163458A external-priority patent/KR20140134211A/ko
Application filed by KT Corp filed Critical KT Corp
Publication of WO2014182009A1 publication Critical patent/WO2014182009A1/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
    • 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
    • H04L1/1861—Physical mapping 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
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling

Definitions

  • the present invention relates to a method and apparatus for transmitting and receiving a response signal (HARQ-ACK) in uplink or downlink by a UE belonging to a small cell and an arbitrary cell / base station / RRH / antenna / RU in a multi-cell structure. More specifically, the present invention relates to a technique for transmitting and receiving a HARQ-ACK by setting a PHICH or PUCCH resource including a HARQ-ACK in a multi-subframe or multi-TI environment.
  • HARQ-ACK response signal
  • LTE Long Term Evolution
  • LTE-Advanced of the current 3GPP series are high-speed and large-capacity communication systems that can transmit and receive various data such as video and wireless data out of voice-oriented services.
  • the development of technology capable of transferring large amounts of data is required. Meanwhile, since a single cell method cannot be applied in transmitting downlink signals, uplink signals, and reference signals in a plurality of cells or small cells, new technologies and methods are needed.
  • the ambiguity of the allocation of PHICH resources between the terminal and the base station is solved so that the HARQ operation for data transmission performed between the terminal and the base station can be accurately implemented.
  • the present invention is to implement the correct operation of HARQ to resolve the ambiguity for the allocation of PUCCH resources for transmission of the response signal in the uplink when transmitting downlink data between the terminal and the base station.
  • the correct operation of the HARQ to increase the data rate of the uplink / downlink.
  • the base station for setting one or more transport blocks (TB) in multiple subframes and a downlink control channel comprising a scheduling grant and And / or transmitting a downlink including a physical downlink shared channel (PDSCH) to the UE, wherein the downlink control channel is a PDCCH and / or an EPDCCH.
  • TB transport blocks
  • PDSCH physical downlink shared channel
  • a downlink including a scheduling grant in which at least one transport block (TB) is set in a multi-subframe from a base station Receiving a downlink including a link control channel and / or a physical downlink shared channel (PDSCH) and transmitting or scheduling an uplink including a physical uplink shared channel (PUSCH) corresponding to the scheduling grant indication to a base station; Physical Downlink Control CHannel (PDCCH) including a grant or Physical Uplink Control CHannel (PUCCH) resource calculated from EPDCCH, including the Automatic Automatic Repeat Request ACK (HARQ-ACK) of each PDSCH, including uplink PUCCH It includes the step of transmitting to, but the downlink control channel provides a method of PDCCH and / or EPDCCH.
  • PDSCH Physical Downlink Control CHannel
  • HARQ-ACK Automatic Automatic Repeat Request ACK
  • a downlink control channel including a control unit and scheduling grant for the base station to set one or more transport blocks (TB) in multiple subframes And / or a transmitter for transmitting a downlink including a physical downlink shared channel (PDSCH) to a terminal, wherein the downlink control channel is a PDCCH and / or an EPDCCH.
  • TB transport blocks
  • PDSCH physical downlink shared channel
  • a downlink including a scheduling grant in which at least one transport block (TB) is set in a multi-subframe from a base station Receiving a downlink including a control channel and / or a physical downlink shared channel (PDSCH) and receiving a downlink physical hybrid ARQ indicator channel (PHICH) including a response signal (HARQ-ACK) from the base station to the base station and the base station Transmit an uplink including a Physical Uplink Shared CHannel (PUSCH) corresponding to a scheduling grant indication or use a Physical Downlink Control CHannel (PDCCH) including a scheduling grant or a Physical Uplink Control CHannel (PUCCH) resource calculated from an EPDCCH. It includes a transmitter for transmitting the uplink PUCCH by including a response signal (Hybrid Automatic Repeat Request ACK, HARQ-ACK) of the PDSCH of the Provides a terminal device.
  • HARQ-ACK downlink Physical Hybrid Automatic Repeat Request ACK
  • the present invention When the present invention is applied, the ambiguity about the allocation of PHICH resources is solved between the terminal and the base station, and the operation of HARQ for data transmission performed between the terminal and the base station is accurately implemented.
  • FIG. 1 is a diagram illustrating small cell deployment according to an embodiment.
  • FIG. 2 is a diagram illustrating a small cell deployment scenario.
  • 3 to 6 show detailed scenarios in small cell deployment.
  • FIG. 7 is a diagram of a control region for transmitting a downlink control channel.
  • 8 is a diagram illustrating transmission of a control channel in one subframe.
  • FIG. 9 illustrates a DCI format indicating a scheduling grant for uplink / downlink transmission.
  • FIG. 10 is a diagram illustrating a PHICH allocation procedure to which an embodiment of the present invention is applied.
  • FIG. 11 illustrates mapping of a DMRS value and an upstream DCI format according to an embodiment of the present invention.
  • FIG. 12 is a diagram illustrating uplink and downlink timing in TDD.
  • FIG. 13 is a view showing an operation of a base station according to an embodiment of the present invention.
  • FIG. 14 is a view showing a process of operating in a terminal according to an embodiment of the present invention.
  • 16 shows a HARQ-ACK offset value for implementing the present invention.
  • FIG. 17 illustrates an operation of a base station according to an embodiment of the present invention.
  • FIG. 18 is a diagram illustrating a process of operating in a terminal according to an embodiment of the present invention.
  • 19 is a diagram illustrating a configuration of a base station according to another embodiment.
  • 20 is a diagram illustrating a configuration of a user terminal according to another embodiment.
  • 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 comprehensive concept of a terminal in wireless communication.
  • UE user equipment
  • LTE Long Term Evolution
  • HSPA High Speed Packet Access
  • MS Mobile Station
  • UT User Terminal
  • SS Global System for Mobile communications
  • 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.
  • Base Transceiver System Access Point, Relay Node, Remote Radio Head, RRH, Radio Unit, Transmission Point, TP, Reception Point, RP, etc. It may be called in other terms.
  • a base station or a cell should be interpreted in a comprehensive sense to indicate some areas or functions covered by a base station controller (BSC) in CDMA, a NodeB in WCDMA, an eNB or a sector (site) in LTE, and the like. It is meant to cover all of the various coverage areas such as megacell, macrocell, microcell, picocell, femtocell and relay node, RRH, RU 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 eNB, RRH, antenna, RU, LPN, point, transmit / receive point, transmit point, receive point, etc. become embodiments of the base station according to the configuration of the radio region.
  • 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 and receive points, transmit points, and receive points are collectively referred to the base station.
  • LPNs low power nodes
  • eNBs transmit and receive points, transmit points, and receive points
  • 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
  • Uplink and downlink transmit control information through control channels such as Physical Downlink Control CHannel (PDCCH), Physical Control Format Indicator CHannel (PCFICH), Physical Hybrid ARQ Indicator CHannel (PHICH), and Physical Uplink Control CHannel (PUCCH).
  • a data channel is configured such as PDSCH (Physical Downlink Shared CHannel), PUSCH (Physical Uplink Shared CHannel) and the like to transmit data.
  • control information can also be transmitted using an enhanced PDCCH (EPDCCH or 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 means 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, and a PDSCH may be described in the form of 'sending and receiving a PUCCH, a PUSCH, a PDCCH, and a PDSCH.
  • transmitting or receiving a PDCCH or transmitting or receiving a signal through a PDCCH may be used to mean transmitting or receiving an EPDCCH or transmitting or receiving a signal through an EPDCCH.
  • the physical downlink control channel described below may mean a PDCCH or an 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.
  • high layer signaling described in the present specification includes RRC signaling for transmitting RRC information including an RRC parameter.
  • An eNB which is an embodiment of a base station, performs downlink transmission to 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
  • the first terminal UE1 may transmit an uplink signal to the eNB and the second terminal may transmit an uplink signal to the RRH.
  • FIG. 1 is a diagram illustrating small cell deployment according to an embodiment.
  • FIG. 1 illustrates a configuration in which a small cell and a macro cell coexist, and in FIGS. 2 to 3 below, whether macro coverage is present and whether the small cell is for outdoor or indoor. It is classified according to whether it is for. In addition, the small cell is classified in more detail according to whether it is a sparse situation or a dense situation, or whether the same frequency spectrum as the macro is used in terms of spectrum.
  • FIG. 2 is a diagram illustrating a small cell deployment scenario.
  • FIG. 2 shows a typical representative configuration for the scenario of FIG. 3.
  • 2 illustrates a small cell deployment scenario and includes scenarios # 1, # 2a, # 2b and # 3.
  • 200 denotes a macro cell
  • 210 and 220 denote small cells.
  • the overlapping macro cell may or may not exist.
  • Coordination may be performed between the macro cell 200 and the small cells 210 and 220, and coordination may also be performed between the small cells 210 and 220.
  • the overlapped areas of 200, 210, and 220 may be bundled into clusters.
  • 3 to 6 show detailed scenarios in small cell deployment.
  • Scenario 1 is a co-channel deployment scenario of a small cell and a macro cell in the presence of an overhead macro and an outdoor small cell scenario.
  • 310 denotes a case where both the macro cell 311 and the small cell are outdoors, and 312 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 312 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 2a is an deployment scenario in which the small cell and the macro use different frequency spectrums in the presence of an overlay macro and an outdoor small cell scenario. Both macro cell 411 and small cells are outdoors and 412 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 412 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 2b is a deployment scenario in which the small cell and the macro use different frequency spectrums in the presence of an overlay macro and an indoor small cell scenario.
  • the macro cell 511 is outdoors, the small cells are all indoors, and 512 indicates a small cell cluster. Users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 512 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • Scenario 3 is an indoor small cell scenario in the absence of coverage of macros. 612 indicates a small cell cluster. In addition, small cells are all indoors, and users are distributed both indoors and outdoors.
  • Solid lines connecting the small cells in the small cell 612 mean a backhaul link within a cluster.
  • the dotted lines connecting the base station of the macro cell and the small cells in the cluster mean a backhaul link between the small cell and the macro cell.
  • the control region 710 includes transmission of PHICH, PCFICH, and PDCCH.
  • the control region may be configured with 1 to 3 OFDM symbols, but is not limited thereto.
  • the control region may be increased or decreased according to the situation of the system.
  • the PDCCH is spread evenly allocated to the number of OFDM symbols in which the PDCCH indicated by the PCFICH is transmitted, except for the resources used for the PHICH and the PCFICH, and then transmitted. Control signaling and a cell-specific reference symbol are distributed in a subframe.
  • control channel 8 is a diagram illustrating transmission of a control channel (control region for transmitting a control channel) in one subframe.
  • 810 and 820 are examples of the transmission of a PDSCH indicated by a control channel transmitted in every subframe when the PDSCH is transmitted on a multiple carrier.
  • CC # 1, # 2, and # 3 of 810 and 820 mean a first component carrier, a second component carrier, and a third component carrier, respectively.
  • 8 is a diagram illustrating the transmission of a PDSCH indicated by a control channel transmitted in every subframe when the PDSCH is transmitted on a multicarrier.
  • 810 is an embodiment in which there is no cross carrier scheduling, and a carrier indicator is not included in downlink control information (DCI).
  • DCI downlink control information
  • self-carrier scheduling on multiple carriers a PDCCH exists in each carrier independently in each carrier to schedule the corresponding PDSCH.
  • 820 represents cross carrier scheduling on multiple carriers and includes a carrier indicator in DCI.
  • the present invention relates to a case in which a PDSCH can be scheduled to a plurality of carriers in one carrier.
  • a PDCCH existing in one carrier schedules a PDSCH that can be transmitted on a plurality of carriers.
  • the embodiment of 820 also transmits data in multiple carriers by a control channel transmitted every subframe within a 1 ms subframe, as shown in 810.
  • FIG. 9 illustrates a DCI format indicating a scheduling grant for uplink / downlink transmission. DCI formats are separately transmitted according to each uplink / downlink transmission method and usage.
  • the base station transmits a response signal (HARQ-ACK) for the uplink signal received from the terminal and the response signal (HARQ-) for the downlink signal received from the base station
  • HARQ-ACK response signal
  • HARQ-ACK response signal
  • the present invention will be described when the base station transmits a response signal (HARQ-ACK) for the uplink signal received from the terminal.
  • HARQ-ACK response signal
  • FIG. 10 illustrates a PHICH assignment procedure to which an embodiment of the present invention is applied.
  • FIG. 10 shows a structure of a PHICH for transmitting a hybrid automatic repeat request or hybrid automatic retransmission request (HARQ) -ACK of an UL SCH.
  • HARQ hybrid automatic repeat request
  • HARQ-ACK response signal
  • the response signal HARQ-ACK is coded using 3 times repetition, modulated with BPSK, and spread with an orthogonal sequence having a length of 4 (length-4). spreading).
  • the process for determining PHICH resources is as follows.
  • PHICH resources are the index pair Determined by Is the PHICH group number Is the PHICH sequence index in the group.
  • Each Wow Equation for determining is represented by Equation 1 below.
  • Equation 1 The parameters constituting Equation 1 are as follows.
  • DMRS Demodulation Reference Signal
  • I PRB_RA ⁇ lowest_index means the lowest physical resource block index (PRB) index corresponding to the first slot of the corresponding PUSCH transmission
  • I PRB_RA indicates whether the transmission of the PUSCH is a single TB or multiple TB Therefore, it is determined by the value of I PRB_RA ⁇ lowest_index or (I PRB_RA ⁇ lowest_index + 1).
  • I_PHICH is a value determined as in Equation 2 below according to TDD configuration information.
  • 11 is according to an embodiment of the present invention Mapping between cyclic shift values in the uplink and uplink DCI formats and the cyclic shift for DMRS field in PDCCH with uplink DCI format in [4]).
  • the PHICH resource is the lowest PRB index based on the DCI format in the PDCCH for transmitting one uplink grant.
  • the PHICH resource is determined using the cyclic shift value of the DMRS in the uplink DCI format.
  • HARQ-ACK response signal
  • the terminal receives the PHICH.
  • the first subframe and the second subframe have the same frequency resource, that is, an RB index.
  • the PHICH resource for transmitting the HARQ-ACK of the PUSCH transmitted in the first subframe and the PHICH resource for transmitting the HARQ-ACK of the PUSCH transmitted in the second subframe When the conventional technique is applied to the classification, the parameter for setting the PHICH resource for the PUSCH is determined through the lowest PRB index, the cyclic shift index of the uplink DMRS, and so on, through multiple subframes with one UL grant.
  • the UE receives a response signal (HARQ-ACK) in the downlink for the PUSCH transmitted in each subframe
  • HARQ-ACK response signal
  • the present invention when the base station performs a multi-subframe scheduling to the terminal, when the terminal receives a downlink response signal (HARQ-ACK) for the PUSCH transmitted in each subframe in the terminal described above
  • HARQ-ACK downlink response signal
  • the present invention relates to a method for resolving the ambiguity of reception of PHICH resources of a PHICH resource for transmitting a response signal (HARQ-ACK) transmitted through the PHICH at the base station and the apparatus and the terminal A receiving method and apparatus therefor.
  • the terminal receives a downlink response signal (HARQ-ACK) for the PUSCH transmitted in each subframe.
  • HARQ-ACK downlink response signal
  • a method and apparatus for resolving ambiguity for reception of PHICH resources in a terminal described above are provided.
  • a PHICH resource for transmitting a response signal (HARQ-ACK) transmitted through the PHICH in the base station a PHICH transmission method and apparatus, and a reception method and the apparatus in the terminal.
  • a method for transmitting a response signal (HARQ-ACK) from a base station to a downlink for data transmitted by a terminal belonging to a small cell and an arbitrary cell / base station / RRH / antenna / RU in a multi-cell structure and to the base station apparatus also relates to a method for receiving a corresponding response signal (HARQ-ACK) transmitted in the downlink from the terminal and a terminal apparatus using the method.
  • HARQ-ACK response signal
  • An embodiment of the present invention relates to a PHICH resource allocation scheme for ACK / NACK transmission according to PUSCH transmission of multiple TTIs when multiple TTI (or subframe) scheduling of an uplink PUSCH is performed.
  • one TB may be configured in units of multiple subframes, and a corresponding scheduling grant may be used for scheduling of multiple subframes. Since HARQ is performed for each TB, the HARQ method performed with one TB and the cyclic shift value of the DMRS field existing in one scheduling grant and the lowest index of the PRB to which the PUSCH is allocated are performed in the same manner as the existing HARQ method and the legacy operation. It may be a method for allocating PHICH resources and multiplexing between terminals by n_DMRS.
  • the TB may be configured in units of subframes, and the scheduling grant may be used for scheduling of each subframe.
  • the method allocates PHICH resources by n_DMRS, which is determined according to the lowest index of the PRB to which the PUSCH transmitted in each subframe is allocated and the cyclic shift value of the DMRS field present in each scheduling grant, as in the conventional legacy operation.
  • n_DMRS which is determined according to the lowest index of the PRB to which the PUSCH transmitted in each subframe is allocated and the cyclic shift value of the DMRS field present in each scheduling grant, as in the conventional legacy operation.
  • a method for allowing multiplexing between terminals to be performed may be considered as to how much the allocation of each scheduling grant is divided when the scheduling grant for TB allocated to each subframe is allocated.
  • the PHICH resource may be differently set for each subframe according to different lowest PRB indexes.
  • the cyclic shift value is used to distinguish different PHICH resources.
  • HARQ is TB when the TB is configured in each subframe unit. Since it must be made in units, additional methods for PHICH resource allocation may be considered.
  • n_DMRS determined by the scheduling grant according to the cyclic shift value of the DMRS field is the first. Since the cyclic shift value of the DMRS used in the subframe and the cyclic shift value of the DMRS used in the second subframe are different, the n_DMRS value is also different. Therefore, PHICH resource allocation is performed using n_DMRS determined according to the cyclic shift value of the DMRS actually used in the second subframe. This may be considered as a way to enable multiplexing of PHICH resources for two TBs transmitted in two subframes at a time. That is, in the 3-A embodiment, n_DMRS may be used according to the cyclic shift value of the DMRS used in each subframe for PUSCH transmission.
  • the lowest PRB between subframes transmitting PUSCH by one scheduling grant is applied.
  • the index may fluctuate. Therefore, a method of performing PHICH resource allocation using the lowest PRB index according to the first slot of the subframe transmitting each PUSCH may be considered.
  • the subframe index may be additionally used for the determination of the PHICH resource when scheduling multiple subframes. There may be various ways of using the corresponding subframe index to determine the PHICH resource. If the number of subframes for multiple subframe scheduling is Y, Equation 3 below and There may be a way to add the subframe index to the formula before mod in.
  • I PRB_RA which is a parameter shown in Equations 3 and 4
  • a parameter of a subframe according to scheduling of multiple subframes is added to determine the I PRB_RA determined according to transmission of multiple TBs using an existing multiple antenna.
  • a method of determining the value of ⁇ I PRB_RA ⁇ lowest_index + 2 * (subframe_index mod Y) ⁇ or ⁇ I PRB_RA ⁇ lowest_index + 1 + 2 * (subframe_index mod Y) ⁇ may be considered. That is, in the 3-C embodiment, at least one of the group index and the sequence index of the PHICH resource may be calculated using the subframe index transmitting the PUSCH.
  • the PHICH for the HARQ-ACK transmission since synchronous / adaptive HARQ is performed, PUSCH is transmitted in the nth subframe by the UL grant transmitted in the n-4th subframe in the case of FDD under single subframe scheduling.
  • the PHICH for the HARQ-ACK transmission according to the present invention always transmits the PHICH in the n + 4th subframe in the case of FDD, and the UE expects to receive the PHICH in the corresponding subframe. do.
  • the PHICH timing for the PUSCH transmitted in the nth subframe is determined as n + k_PHICH according to the TDD UL-DL configuration, where k_PHICH is configured as shown in FIG. 12. 12 is a diagram illustrating uplink and downlink timing in TDD.
  • the part related to the PHICH transmission timing may be changed, and the same principle described below may be equally applied to the case of TDD.
  • the timing of the PHICH should be set based on the last subframe of the PUSCH transmitted by the corresponding multiple subframe scheduling. In other words, this reduces the frequency of PHICH transmission due to the transmission of the PUSCH transmitted in every subframe during multi-subframe scheduling, so that the multi-subframe scheduling can contribute to increasing the data rate in terms of reducing the overhead of the control channel. do.
  • a scheduling grant for performing the corresponding multiple subframe scheduling that is, transmission in the n-8th case of FDD based on transmission timing of PDCCH and EPDCCH including the DCI. It is possible to set the PHICH transmission timing in the nth subframe based on the PDCCH / EPDCCH.
  • the base station By allowing the base station to control the flexibility of resource allocation for the amount of data to be transmitted by the terminal at the same time as the frequency unit, the UE experience is improved due to an increase in data traffic.
  • overhead of a downlink control channel PDCCH / EPDCCH for allocating a scheduling grant for enabling a UE to enable uplink PUSCH transmission in each subframe can be reduced.
  • the overhead of downlink control channel PDCCH can be reduced by reducing the allocation of PHICH resources that can be generated according to uplink PUSCH transmission that can be transmitted for each subframe.
  • the present invention relates to transmission of a response signal (HARQ-ACK) in downlink for transmission of a response signal (HARQ-ACK).
  • FIG. 13 is a view showing an operation of a base station according to an embodiment of the present invention.
  • the base station configures one or more TBs in multiple subframes (S1310).
  • a downlink control channel including an uplink scheduling grant is transmitted to the terminal.
  • the base station receives an uplink including a PUSCH corresponding to the scheduling grant indication from the terminal (S1330), and calculates the cyclic shift value of the DMRS field included in the scheduling grant and information of the TB or the subframe.
  • the response signal HARQ-ACK according to the received PUSCH detection is transmitted to the UE in downlink using the PHICH resource (S1340).
  • the base station may configure one TB in units of multiple subframes, and the scheduling grant may be allocated to multiple subframes.
  • the PHICH resource may be implemented to be calculated based on the lowest PRB index of the PRB to which the PUSCH is allocated and the cyclic shift value of the DMRS field included in the scheduling grant.
  • the base station configures a TB in each subframe unit, an uplink scheduling grant is allocated for each subframe, and the PHICH resource is the lowest PRB index of the PRB to which the PUSCH is allocated. And it can be implemented to be calculated by the cyclic shift value of the DMRS field included in the scheduling grant.
  • the value of the cyclic shift can be allocated to each subframe, or in the 2-B embodiment, a plurality of resource allocation information can be allocated under one DCI.
  • the base station configures a TB in units of subframes, and an uplink scheduling grant can be allocated for multiple subframes.
  • the PHICH resource may be implemented to be calculated by a cyclic shift value of a DMRS field used in each subframe that transmits the PUSCH.
  • the PHICH resource may be implemented to be calculated by the lowest PRB index according to the first slot of the subframe transmitting the PUSCH.
  • at least one of the group index and the sequence index of the PHICH resource may be calculated using the subframe index transmitting the PUSCH. Detailed embodiments will be replaced by the above description.
  • the PHICH transmission timing is set based on the last subframe of the PUSCH transmitted in the multi-subframe scheduling.
  • the PHICH transmission timing is set based on the transmission timing of the PDCCH and EPDCCH including a scheduling grant to perform the multi-subframe scheduling.
  • PHICH may be set to be transmitted in the nth subframe
  • the PHICH transmission timing according to the reception timing and the scheduling timing of the PUSCH may be set.
  • the terminal receives a downlink control channel including an uplink scheduling grant from the base station (S1410).
  • the base station is in a state of controlling the terminal to set at least one TB in multiple subframes before the step S1410.
  • the terminal transmits an uplink including the PUSCH corresponding to the scheduling grant indication to the base station (S1420).
  • a downlink including a response signal HARQ-ACK is received from the base station.
  • the PHICH resource is calculated using the cyclic shift value of the DMRS field included in the scheduling grant and information on the TB or subframe, and the response signal HARQ-ACK allocated to the resource is checked (S1430).
  • PHICH resources are as follows. That is, in the downlink control channel including the uplink scheduling grant, one TB is configured in units of multiple subframes, and the scheduling grant is configured to be allocated for multiple subframes.
  • the UE may identify the PHICH resource from the lowest PRB index of the PRB to which the PUSCH is allocated and the cyclic shift value of the DMRS field included in the scheduling grant, thereby confirming the response signal HARQ-ACK in the corresponding resource. have.
  • PHICH resources are as follows.
  • TB is configured in each subframe unit, and the scheduling grant is configured to be allocated for each subframe.
  • the UE may check the response signal HARQ-ACK in the corresponding resource by calculating the PHICH resource from the lowest PRB index of the PRB to which the PUSCH is allocated and the cyclic shift value of the DMRS field included in the scheduling grant.
  • cyclic shift values can be allocated respectively, or in the 2-B embodiment, a plurality of resource allocation information for transmission of multiple subframes can be allocated in one uplink DCI.
  • the downlink control channel including the uplink scheduling grant is configured of TBs for each subframe, and the scheduling grant is configured to be allocated for multiple subframes.
  • B, 3-C Examples are as follows. That is, the UE calculates a PHICH resource from the cyclic shift value of the DMRS field used in each subframe transmitting the PUSCH in embodiment 3-A. The response signal HARQ-ACK is identified from the calculated PHICH resource.
  • the UE calculates a PHICH resource from the lowest PRB index value according to the first slot of the subframe transmitting the PUSCH in embodiment 3-B.
  • the response signal HARQ-ACK is identified from the calculated PHICH resource.
  • the UE calculates any one or more of the group index or the sequence index of the PHICH resource by using the subframe index for transmitting the PUSCH in embodiment 3-C, and the response signal (HARQ-) in the calculated PHICH resource. ACK).
  • the PHICH timing is set based on the last subframe of the PUSCH transmitted in the multiple subframe scheduling.
  • the PHICH transmission timing is set based on the transmission timing of the PDCCH and EPDCCH including a scheduling grant to perform the multi-subframe scheduling.
  • HARQ-ACK response signal
  • the PUCCH (Physical Uplink Control Channel) used as an uplink control channel is formatted according to the type of information sent from the terminal. The following describes the types of formats for PUCCH and their uses.
  • PUCCH format 1 is a channel format for transmitting only a scheduling request.
  • PUCCH format 1a / 1b is a channel for transmitting Ack / Nack for a scheduling request and / or downlink data channel and according to format number 1a / according to the number of bits of Ack / Nack and a modulation scheme. It is divided into 1b.
  • the shortened PUCCH format 1a / 1b is a format in which the last SC-FDMA symbol of one subframe is punctured in PUCCH format 1a / 1b transmitting A / N (Ack / Nack). Whether to use the format is determined by TRUE / FALSE of "ackNackSRS-SimultaneousTransmission", which is an RRC parameter indicated by an upper layer of the base station, and the cell-specific information configuration of the SRS.
  • PUCCH format 2 is a channel format for transmitting only CQI.
  • PUCCH format 2a / 2b is a channel for transmitting "Ack / Nack for CQI + downlink data channel" and is divided into 2a / 2b according to the number of bits of Ack / Nack and a modulation scheme.
  • PUCCH format 3 is a channel for transmitting Ack / Nack of 4 bits or more under downlink carrier aggregation.
  • Shortened PUCCH format 3 is a format in which the last SC-FDMA symbol of one subframe is punctured in PUCCH format 3 transmitting Ack / Nack. Whether to use the format is determined by TRUE / FALSE of "ackNackSRS-SimultaneousTransmission", which is an RRC parameter indicated by an upper layer of the base station, and the cell-specific information configuration of the SRS.
  • the PUCCH resource allocation method in the case of transmitting Ack / Nack in the corresponding PUCCH format is as follows.
  • the method for determining the PUCCH resource is FDD mode or TDD mode, which PUCCH format is used, whether the control channel for transmitting the PDSCH is PDCCH or EPDCCH, whether or not the PDSCH is indicated by PDCCH and EPDCCH, and It is classified according to whether it constitutes a serving cell or multiple serving cells.
  • a PUCCH resource is used for transmitting one downlink grant.
  • RRC parameter that sets HARQ-ACK resource based on lowest CCE index (or lowest ECCE index in case of EPDCCH) used to configure PDCCH (or EPDCCH) or informs by lowest CCE index and RRC information ,
  • the value of the response signal (HARQ-ACK) offset determined by N_PUCCH ⁇ (1) or indicated in the lowest CCE index or DCI format.
  • the PUCCH resource for transmitting the response signal HARQ-ACK is set from pucch-ResourceStartOffset-r11.
  • the PUCCH resource is allocated to the PUCCH resource according to the antenna port, that is, p_0 or p_1 as follows. By using +1 in addition to the configuration, the resource of PUCCH for p_1 is set.
  • 15 is an index for downlink combining in TDD Figure showing.
  • 16 shows a HARQ-ACK offset value for implementing the present invention.
  • FIG. 16 shows a HARQ-ACK offset value for implementing the present invention.
  • Figure 16 is an offset value Shows the setting of.
  • uplink / downlink scheduling when downlink transmission received by a UE belonging to a cell / base station / RRH / antenna / RU or small cell and control signal for uplink transmission that the UE should transmit Transmission of the PDCCH / EPDCCH including the control signal having information should be transmitted by a certain number of symbols (for example, 1 to 4 OFDM symbols) in every subframe. Accordingly, since the data rate of the uplink / downlink can be reduced due to the overhead of the corresponding control channel, a small cell environment and an arbitrary cell / base station / RRH / antenna / RU are considered in a cross subframe considering the channel state of the UE. subframe scheduling and multi-subframe or multiple subframe scheduling may be considered.
  • the PUCCH for performing a response signal (HARQ-ACK) transmission in the uplink for the downlink PDSCH transmission Ambiguity may occur in determining transmission timing, time resource and frequency resource and in receiving PUCCH resources transmitted from the terminal and received at the base station.
  • HARQ-ACK response signal
  • the first subframe and the first subframe are performed because scheduling is performed through one DL grant.
  • the PUCCH for the PDSCH is determined by the lowest CCE index (lowest control channel elements index) constituting the PDCCH transmitting the DL grant, so that the PDSCH is transmitted in each subframe through multiple subframes with one DL grant.
  • the base station transmits the PDSCH to the terminal through the multi-subframe scheduling, the base station receives a PUCCH for transmitting the uplink response signal (HARQ-ACK) for the PDSCH transmitted in each subframe
  • HARQ-ACK uplink response signal
  • the present invention relates to a method for resolving ambiguity on reception of a PUCCH resource at a base station described above, and a method for setting / transmitting a PUCCH resource for transmitting a HARQ-ACK transmitted from a UE through a PUCCH.
  • the reception method in an apparatus, a base station, and its apparatus are demonstrated.
  • the present invention relates to a PUCCH resource allocation scheme for transmission of a response signal (HARQ-ACK) according to PDSCH transmission in multiple transmission time interval (TTI) when multiple TTI (or subframe) scheduling of a downlink PDSCH is performed.
  • TTI transmission time interval
  • the UE configures a transport block (TB), which is one transport block, in units of multiple subframes, and sets a scheduling grant to exist for the multiple subframes.
  • TB transport block
  • the method can be considered. This is because HARQ is performed by TB, so that the HARQ method performed with one TB and the lowest CCE index (or the lowest eCCE for EPDCCH) used by the PDCCH (or EPDCCH) used for the corresponding PDSCH in the same manner as the operation in the legacy legacy system. Index) or the RRC parameter informed by the lowest CCE index and RRC information, determined by N_PUCCH ⁇ (1), or by the lowest CCE index or DCI format.
  • the PUCCH resource for transmitting the response signal HARQ-ACK may be set from pucch-ResourceStartOffset-r11.
  • the base station configures one TB in units of multiple subframes, and when a scheduling grant is allocated to multiple subframes, when a PDCCH including the scheduling grant is transmitted, the lowest CCE index and an RRC parameter of the PDCCH are transmitted.
  • the PUCCH resource may be calculated by combining any one or more of offset information included in the DCI format of the PDCCH.
  • the PUCCH resource is combined with at least one of a lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q. It can be implemented to be calculated.
  • a method of configuring a TB in units of subframes and setting a scheduling grant to exist for each subframe may be considered. This method is similar to the operation in legacy, based on the lowest CCE index (lowest eCCE index for EPDCCH) used by the PDCCH or EPDCCH used for the PDSCH allocated to each subframe (HARQ-ACK) resources Or the lowest CCE index (lowest eCCE index for EPDCCH) and RRC parameter informed by RRC information, determined by N_PUCCH ⁇ (1), or the lowest CCE index (lowest eCCE index for EPDCCH), DCI format Signal Offset Value (HARQ-ACK) And, for the EPDCCH PRB set q which is to be informed by the RRC for PUCCH response signal (HARQ-ACK) resource configuration for the PDSCH indicated from the EPDCCH That is, it may be a method of setting a PUCCH response signal (HARQ-ACK) resource for transmitting the
  • the base station configures TB in each subframe unit, and when the scheduling grant is allocated for each subframe, when the PDCCH including the scheduling grant is transmitted, the lowest CCE index and RRC parameter of the PDCCH
  • the PUCCH resource may be calculated by combining any one or more of offset information included in the DCI format of the PDCCH.
  • the PUCCH resource is combined with at least one of a lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q. It can be implemented to be calculated.
  • the lowest CCE of the PDCCH (or EPDCCH) to which one DL grant is delivered may be the same.
  • a parameter may be additionally set in the DL grant for the PDSCH. The added parameter may be used to distinguish PUCCH resources even when the lowest CCE index (lowest eCCE index for EPDCCH) used by each PDCCH or EPDCCH to which each DL grant for the PDSCH allocated to each subframe is transmitted is the same. do.
  • the lowest CCE index (lowest eCCE index for EPDCCH) used by each PDCCH or EPDCCH to which each DL grant for PDSCH allocated to each subframe is transmitted is the same.
  • an additional parameter to solve this problem may be considered.
  • This parameter should be a value that can distinguish a PUCCH resource for performing HARQ-ACK transmission for a PDSCH transmitted in each subframe.
  • an index of a subframe that may be different for each subframe may be considered.
  • the subframe indexes on which each PDSCH is transmitted may be different from each other, the subframe index may be used.
  • the PDSCH transmitted in each subframe may have a different HARQ process number, a PUCCH resource for transmitting a HARQ-ACK for the PDSCH transmitted in each subframe may be identified. You can use the add method as a parameter to enable this. Meanwhile, a method of directly including an additional parameter for indicating each subframe in the DL grant in the downlink DCI may be used in an explicit method.
  • the base station may set different subframe indexes using subframes to which the PDSCH is transmitted, set different HARQ process numbers for the PDSCH, or assign each subframe to a DL grant for the PDSCH.
  • Information to refer to is included so that PUCCH resources can be distinguished even when the lowest CCE index (or lowest eCCE index for EPDCCH) of one PDCCH (or EPDCCH) to which one DL grant is delivered is the same.
  • one scheduling grant performs scheduling of all subframes in order to reduce overhead of the control channel. If the TB is configured in each subframe unit while performing, HARQ should be configured in TB units, so an additional method for PUCCH resource allocation may be considered.
  • the third embodiment of the UE transmitting the response signal may additionally use a subframe index to determine the PUCCH resource when scheduling multiple subframes.
  • a subframe index may be various ways of using the corresponding subframe index to determine the PUCCH resource. If the number of subframes for multiple subframe scheduling is Y, first, the FDD case will be described.
  • 3-A-FDD-i) UE transmits response signal for PDCCH indicating transmission or downlink SPS release of PDSCH indicated by detection of corresponding PDCCH in n-4th subframe
  • subframe_index means the subframe_index through which the PDSCH is transmitted.
  • the PUCCH resource is implemented so that the PDCCH including the scheduling grant is calculated from the transmitted subframe index.
  • alpha may be one of subframe_index, slot number or floor (slot number / 2), and HARQ process number, which is shown in Equation 5-1.
  • X denotes an antenna port number used to transmit a PUCCH as a multiple antenna port, that is, ⁇ 0,1 ⁇ during transmission using two multiple antennas. It may be one and may be one of ⁇ 0, 1, 2, 3 ⁇ when transmitting using four multiple antennas.
  • Is the lowest CCE index constituting the PDCCH Denotes an RRC parameter value configured in a high layer.
  • 3-A-FDD-ii) UE transmits response signal corresponding to PDSCH in UE for transmission of PDSCH indicated by detection of corresponding EPDCCH in n-4th subframe or EPDCCH indicating downlink SPS release
  • An embodiment of setting a PUCCH resource This is again divided into a case of distributed EPDCCH (Distributed EPDCCH) transmission and a case of localized EPDCCH (Localized EPDCCH) transmission.
  • the subframe index is shown in Equations 6 and 7 as subframe_index, which means the subframe_index through which the PDSCH is transmitted.
  • EPDCCH-PRB-set for distributed EPDCCH transmission Equation 6 applies.
  • EPDCCH-PRB-set Is the lowest ECCE index that constitutes the EPDCCH used for transmission of this DCI. Denotes a value determined from a HARQ-offset resource field in a DCI format of a corresponding EPDCCH. Is a high layer parameter and is a value indicated by "pucch-ResourceStartOffset-r11", Denotes a value determined from an antenna port when transmitting multiple antennas of a local EPDCCH.
  • the HARQ-offset resource field in the DCI format of the subframe index, EPDCCH-PRB-set, and EPDCCH transmitted by the PDSCH indicated by the EPDCCH including the scheduling grant is transmitted. All of them are used to calculate PUCCH resources.
  • a PUCCH resource is calculated by selectively applying a value determined at an antenna port when transmitting multiple antennas of the EPDCCH.
  • EPDCCH-PRB-set for distributed EPDCCH transmission Equation 6 applies.
  • alpha may be one of subframe_index, slot number or floor (slot number / 2), and HARQ process number, which is shown in Equations 6-1 and 7-1.
  • X denotes an antenna port number used to transmit a PUCCH as a multiple antenna port, that is, ⁇ 0,1 ⁇ during transmission using two multiple antennas. It may be one and may be one of ⁇ 0,1,2,3 ⁇ when transmitting using four antennas.
  • the third embodiment can be applied to the TDD case in a similar manner to the FDD case.
  • nkth subframe in which the UE transmits a response signal there is a transmission of PDSCH indicated by detection of a corresponding PDCCH or a PDCCH indicating downlink SPS release, and a PDSCH transmission or downlink If the PDCCH indicating the SPS release is detected in n-k_m, the configuration of the PUCCH resource for each antenna port is determined by Equation 8 below.
  • subframe_index means the subframe_index in which the PDSCH is transmitted.
  • Nc has the following values.
  • the M value of FIG. 10 The number of elements M in.
  • a response signal HARQ-ACK is transmitted in the subframe n.
  • the PUCCH resource may be implemented to be calculated from the subframe index in which the PDCCH including the scheduling grant is transmitted.
  • alpha may be one of subframe_index, slot number or floor (slot number / 2), and HARQ process number, which is shown in Equation 8-1.
  • X denotes an antenna port number used when transmitting a PUCCH as a multiple antenna port, that is, when transmitting using two multiple antennas, ⁇ 0,1 ⁇ It may be one and may be one of ⁇ 0, 1, 2, 3 ⁇ when transmitting using four multiple antennas.
  • the configuration of the PUCCH resource for each antenna port is determined by the following equation.
  • the subframe index is shown in Equations 10 and 11 as subframe_index, which means the subframe_index in which the PDSCH is transmitted.
  • EPDCCH-PRB-set for distributed EPDCCH transmission In the case of Equation 10.
  • EPDCCH-PRB-set Is the lowest ECCE index that constitutes the EPDCCH used for transmission of this DCI. Denotes a value determined from a HARQ-offset resource field in a DCI format of a corresponding EPDCCH. Is a high layer parameter, a value indicated by "pucch-ResourceStartOffset-r11", Denotes a value determined from an antenna port when transmitting multiple antennas of a local EPDCCH.
  • EPDCCH-PRB-set for distributed EPDCCH transmission In the case of Equation 10-1.
  • EPDCCH-PRB-set for local EPDCCH transmission In the case of Equation 11-1.
  • alpha may be one of subframe_index, slot number or floor (slot number / 2), and HARQ process number, which is shown in Equations 10-1 and 11-1.
  • X denotes an antenna port number used when transmitting a PUCCH as a multiple antenna port, that is, ⁇ 0,1 ⁇ when transmitting using two multiple antennas. In the case of transmission using four multiple antennas, it may be ⁇ 0,1,2,3 ⁇ .
  • the UE transmits the response signal when the HARQ process number for the PDSCH transmitted in each subframe is separately specified, the response signal for the PDSCH transmitted in each subframe based on the corresponding HARQ process number (HARQ-ACK)
  • the PUCCH resource for performing the transmission may be configured. This is possible when the PDSCH transmitted in each subframe is configured to independently have a HARQ process number.
  • different subframes or TBs allocated to each subframe are each subframes as in the legacy system. Since it may be configured to have different HARQ process numbers for the PDSCH or TB allocated to the UE, this is a method of configuring different PUCCH resources using the same.
  • HARQ process numbers for the PDSCH may be set.
  • the third and the third embodiments in which the terminal transmits the response signal are exemplified. However, several of the embodiments may be simultaneously applied.
  • the base station By allowing the base station to control the flexibility of resource allocation for the amount of data to be transmitted by the terminal at the same time as the frequency unit, the UE experience is improved due to the increase in data traffic.
  • overhead of a downlink control channel PDCCH / EPDCCH for allocating a scheduling grant for enabling a UE to enable downlink PDSCH transmission for each subframe can be reduced.
  • PUCCH resource utilization efficiency can be improved on a time axis by reducing allocation of PUCCH resources on various subframes that can be generated according to downlink PDSCH transmission that can be transmitted for each subframe.
  • the HARQ operation for the data transmission performed between the terminal and the base station is corrected, thereby ensuring the reliability of the data transmission between the terminal and the base station. To increase the data rate.
  • HARQ-ACK uplink response signal
  • the base station receives a response signal (HARQ-ACK) in the uplink shows a process in which the base station receives a response signal to the uplink for the downlink.
  • the base station configures one or more TBs in multiple subframes (S1710), and transmits a downlink including a PDCCH / EPDCCH, which is a downlink control channel including a scheduling grant, and a PDSCH corresponding to the indication of the scheduling grant, to the UE ( S1720).
  • the UE receives an uplink PUCCH transmitted by including a response signal (HARQ-ACK) of each PDSCH in a PUCCH resource calculated from a PDCCH or an EPDCCH including the scheduling grant (S1730).
  • the base station configures one TB in units of multiple subframes
  • the scheduling grant transmits multiple subframes Can be allocated for And using any one or more of the lowest CCE index of the PDCCH including the scheduling grant, the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for an EPDCCH PRB set q. Control to calculate the PUCCH resources.
  • the base station when the PDCCH including the scheduling grant is transmitted, the base station combines any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or an EPDCCH including the scheduling grant includes:
  • the PUCCH resource is calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q.
  • the base station configures a TB in units of subframes, a scheduling grant is allocated for each subframe, and the lowest CCE index of the PDCCH including the scheduling grant;
  • the PUCCH resource is calculated using one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for the EPDCCH PRB set q.
  • the index of the subframe in which the PDSCH is transmitted is used to distinguish the lowest CCE index (or eCCE index) if the same.
  • the method may further include a scheme for configuring a different HARQ process number for the PDSCH, or a scheme for including index information of a subframe in a scheduling grant for the PDSCH. That is, when the PDCCH including the scheduling grant is transmitted, the base station combines any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or an EPDCCH including the scheduling grant includes: When transmitted, the PUCCH resource is calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q.
  • the base station configures a TB for each subframe, and a scheduling grant can be allocated for multiple subframes.
  • a scheduling grant is included as a PDCCH.
  • the PUCCH resource may be controlled by the base station to be calculated by a subframe index in which the PDSCH indicated by the PDCCH including the scheduling grant or the PDCCH including the downlink SPS release is transmitted.
  • the PUCCH resource is a HARQ-offset in the DCSCH format of the PDSCH transmitted subframe index, EPDCCH-PRB-set, and EPDCCH indicated by the EPDCCH including the scheduling grant or the EPDCCH including the indication of the downlink SPS release.
  • it can be controlled to be calculated by selectively applying a value determined at the antenna port when the multi-antenna transmission of the EPDCCH.
  • a subframe index, a slot number, a HARQ process number, and an antenna used to transmit a PUCCH in which a PDSCH indicated by a PDCCH or an EPDCCH including a scheduling grant is transmitted It can be controlled to be calculated using any one or more of the port number (port number).
  • the base station may control the HARC process number for the PDSCH so that the PUCCH resources are distinguished.
  • FIG. 18 is a diagram illustrating a process of operating in a terminal according to an embodiment of the present invention.
  • the terminal shows a process of transmitting a response signal (HARQ-ACK) in the uplink, that is, the terminal transmits a response signal in the uplink for the downlink.
  • a network in which a terminal operates is a network in which one or more TBs are set in multiple subframes by a base station.
  • the UE receives a downlink including a PDCCH / EPDCCH, which is a downlink control channel including a scheduling grant, and a PDSCH corresponding to the indication of the scheduling grant, from the base station (S1810), and in a PDCCH or EPDCCH including the scheduling grant.
  • a downlink including a PDCCH / EPDCCH which is a downlink control channel including a scheduling grant
  • a PDSCH corresponding to the indication of the scheduling grant from the base station (S1810), and in a PDCCH or EPDCCH including the scheduling grant.
  • the response signal (HARQ-ACK) of each PDSCH is included and transmitted to the uplink PUCCH (S1820).
  • the scheduling grant is assigned for multiple subframes
  • the S1320 may include any one of a lowest CCE index of a PDCCH including the scheduling grant, a lowest eCCE index of an EPDCCH, an RRC parameter, offset information included in a DCI format of the PDCCH or an EPDCCH, and a parameter for an EPDCCH PRB set q. Computing the PUCCH resources using one or more.
  • the UE when the PDCCH including the scheduling grant is transmitted, the UE combines any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or transmits an EPDCCH including the scheduling grant.
  • the PUCCH resource may be calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q.
  • TB is configured in units of each subframe, and a scheduling grant is allocated for each subframe.
  • a PDCCH of the PDCCH including the scheduling grant is included. Calculating the PUCCH resource using any one or more of a lowest CCE index, a lowest eCCE index of EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for EPDCCH PRB set q. .
  • the PUCCH resource for the PDSCH transmitted in each subframe may be distinguished when the lowest CCE index (or eCCE index) is the same.
  • the PDSCH may be configured to use an index of the transmitted subframe, to set different HARQ process numbers for the PDSCH, or to include index information of the subframe in a scheduling grant for the PDSCH.
  • the transmitting step (S1320) may combine any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or the
  • the PUCCH resource is calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q. can do.
  • the network configures a TB in units of subframes, and a scheduling grant is allocated for multiple subframes.
  • a scheduling grant is included in a PDCCH. And may be divided into a case where a scheduling grant is included in the EPDCCH.
  • S1320 includes a step of calculating the PUCCH resource including a subframe index in which the PDSCH indicated by the PDCCH including the scheduling grant or the PDCCH including the downlink SPS release is transmitted.
  • the S1320 is a HARQ-offset in the DCI format of the subframe index, EPDCCH-PRB-set, and EPDCCH in which the PDSCH indicated by the EPDCCH including the EPDCCH including the scheduling grant or the downlink SPS release is transmitted.
  • the method includes calculating a PUCCH resource by selectively applying a value determined at an antenna port when transmitting multiple antennas of an EPDCCH.
  • the PUCCH resource is transmitted through two or more multiple antennas, a subframe index, a slot number, a HARQ process number, and an antenna used to transmit a PUCCH in which a PDSCH indicated by a PDCCH or an EPDCCH including a scheduling grant is transmitted.
  • the port number port number
  • the base station controls the HARQ process number for the PDSCH to be set, and the terminal may use the same.
  • 19 is a diagram illustrating a configuration of a base station according to another embodiment.
  • a base station 1900 includes a controller 1910, a transmitter 1920, and a receiver 1930.
  • the control unit 1910 is used for the PUSCH transmitted in each subframe when the base station performs the multi-subframe scheduling to the terminal, which is necessary to perform the present invention.
  • the UE receives the HARQ-ACK in downlink
  • the overall HARQ-ACK in downlink for transmitting the HARQ-ACK transmitted through the PHICH in the base station. Control the operation of the base station.
  • the controller 1410 is a PDSCH transmitted in each subframe when the base station transmits a PDSCH through the multi-subframe scheduling to the terminal, which is necessary to perform the present invention when the terminal transmits the response signal.
  • the base station receives a PUCCH for transmitting a response signal (HARQ-ACK) to the uplink for the control of the overall base station operation to solve the ambiguity for the reception of the PUCCH resources at the base station.
  • HARQ-ACK response signal
  • the transmitter 1920 and the receiver 1930 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
  • the configuration of the base station controls the controller 1910 to configure one or more TBs in multiple subframes, and also configures a downlink control channel including an uplink scheduling grant.
  • the transmitter 1920 transmits the downlink to the terminal.
  • the receiver 1930 receives an uplink including a PUSCH corresponding to the scheduling grant indication from the terminal.
  • the controller 1910 includes the response signal (HARQ-ACK) of the received PUSCH in the PHICH resource calculated from the cyclic shift value of the DMRS field included in the scheduling grant and the information of the TB or the subframe.
  • the transmitter 1920 is controlled to transmit the downlink to the terminal.
  • the controller 1910 configures one TB in multiple subframe units, allocates an uplink scheduling grant to multiple subframes, and the PHICH resource is the lowest of the PRB to which the PUSCH is allocated.
  • the downlink may be configured to be calculated by a cyclic shift value of a PRB index and a DMRS field included in the scheduling grant.
  • the control unit 1910 configures a TB in each subframe unit, an uplink scheduling grant is allocated for each subframe, and the PHICH resource is allocated to the PRB to which the PUSCH is allocated.
  • the downlink may be configured to be calculated by a cyclic shift value of a lowest PRB index and a DMRS field included in the scheduling grant.
  • the cyclic shift values can be allocated to each other, or in the 2-B embodiment, a plurality of resource allocation information for scheduling of multiple subframes can be allocated in one DCI.
  • the controller 1910 configures the TB in the unit of each subframe to the UE, and an uplink scheduling grant can be allocated for the multiple subframes.
  • the controller 1910 may control the PHICH resource to be calculated based on a cyclic shift value of a DMRS field used in each subframe that transmits the PUSCH.
  • the controller 1910 may control the PHICH resource to be calculated by the lowest PRB index according to the first slot of the subframe transmitting the PUSCH.
  • the controller 1910 may control to calculate at least one of a group index and a sequence index of the PHICH resource using the subframe index for transmitting the PUSCH.
  • the PHICH timing is set based on the last subframe of the PUSCH transmitted in the multiple subframe scheduling.
  • the PHICH transmission timing is set based on the transmission timing of the PDCCH and EPDCCH including a scheduling grant to perform the multi-subframe scheduling.
  • the terminal transmits the response signal looks at the configuration of the base station in more detail.
  • the control unit 1910 of the base station 1900 receiving the uplink response signal for the downlink sets up one or more TBs in multiple subframes, and includes a scheduling grant and a downlink control channel including the scheduling grant.
  • a downlink including an EPDCCH and a PDSCH corresponding to the indication of the PDCCH / EPDCCH is generated, and the transmitter 1920 transmits the downlink to the UE.
  • the receiver 1930 receives the uplink PUCCH transmitted by the UE including the response signal (HARQ-ACK) of each PDSCH in the PUCCH resource calculated from the PDCCH or EPDCCH including the scheduling grant.
  • HARQ-ACK response signal
  • the control unit 1910 configures one TB in units of multiple subframes, scheduling scheduling is multiple Can be allocated for subframes.
  • the controller 1910 may include any one of the lowest CCE index of the PDCCH including the scheduling grant, the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for the EPDCCH PRB set q. Control to calculate the PUCCH resources using one or more.
  • the controller 1910 may combine any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or include the scheduling grant.
  • the PUCCH resource is calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q.
  • the controller 1910 configures a TB in units of subframes, and assigns a scheduling grant for each subframe, and the lowest level of the PDCCH including the scheduling grant.
  • the PUCCH resource is calculated using one or more of a CCE index, a lowest eCCE index of an EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for an EPDCCH PRB set q. In this case, if a grant existing for each subframe is transmitted through one PDCCH or EPDCCH, the index of the subframe in which the PDSCH is transmitted is used to distinguish the lowest CCE index (or eCCE index) if the same.
  • the method may further include a scheme for configuring a different HARQ process number for the PDSCH, or a scheme for including index information of a subframe in a scheduling grant for the PDSCH. That is, when the PDCCH including the scheduling grant is transmitted, the controller 1910 may combine any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or include the scheduling grant.
  • the PUCCH resource is calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q.
  • the controller 1910 configures a TB in units of subframes, and a scheduling grant can be allocated for multiple subframes.
  • scheduling is performed by PDCCH. It may be divided into a case where a grant is included and a case where a scheduling grant is included as an EPDCCH.
  • the controller 1910 controls the PUCCH resource to be calculated to include a subframe index in which the PDSCH indicated by the PDCCH including the PDCCH including the scheduling grant or the downlink SPS release is transmitted.
  • the PUCCH resource uses all of the HARQ-offset resource fields in the subframe index, EPDCCH-PRB-set, and EPDCCH DCI format in which the EPDCCH including the scheduling grant or the downlink SPS release is transmitted.
  • the controller 1410 controls the calculated value by selectively applying a value determined at the antenna port when the multi-antenna transmission of the EPDCCH.
  • the control unit 1910 When the control unit 1910 is configured to transmit the PUCCH through two or more multiple antennas, the control unit 1910 includes a subframe index, a slot number, a HARQ process number, and a PDSCH indicated by a PDCCH or EPDCCH including a scheduling grant. It can be controlled to be calculated using any one or more of the antenna port number (port number) used when transmitting the PUCCH.
  • the base station may control the HARC process number for the PDSCH so that the PUCCH resources are distinguished.
  • 20 is a diagram illustrating a configuration of a user terminal according to another embodiment.
  • the user terminal 2000 includes a receiver 2030, a controller 2010, and a transmitter 2020.
  • the receiver 2030 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • the control unit 2010 when the base station transmits the response signal, the control unit 2010 is required to perform the above-described present invention, when the base station performs the multi-subframe scheduling to the terminal, the downlink to the PUSCH transmitted in each subframe
  • the terminal receives the response signal (HARQ-ACK) to the link, the overall terminal according to the transmission of the response signal (HARQ-ACK) in the downlink for transmitting the response signal (HARQ-ACK) transmitted through the PHICH at the base station To control the operation.
  • the terminal is controlled by the base station so that one or more TBs are configured in multiple subframes.
  • the control unit 2010 is required to perform the present invention described above, when the base station transmits the PDSCH through the multi-subframe scheduling to the terminal, for the PDSCH transmitted in each subframe
  • the base station receives the PUCCH for transmitting a response signal (HARQ-ACK) to the uplink to control the overall operation of the terminal to solve the ambiguity for the reception of the PUCCH resources at the base station.
  • HARQ-ACK response signal
  • the transmitter 2020 transmits uplink control information, data, and a message to a base station through a corresponding channel.
  • the receiver 2030 when the base station transmits a response signal, receives a downlink control channel including an uplink scheduling grant and a downlink including a response signal HARQ-ACK from the base station and transmits the signal 2020. Transmits a PUSCH corresponding to the uplink scheduling grant indication to the base station through uplink.
  • the controller 2010 calculates a PHICH resource using the cyclic shift value of the DMRS field included in the scheduling grant and the information of the TB or the subframe to generate the response signal HARQ-. ACK).
  • the scheduling grant is allocated for multiple subframes.
  • the controller 2010 calculates the PHICH resource using the lowest PRB index of the PRB to which the PUSCH is allocated and the cyclic shift value of the DMRS field included in the scheduling grant.
  • the downlink control channel including the uplink scheduling grant is formed of TBs for each subframe, and when the scheduling grant is allocated for each subframe, the controller 2010 determines that the PUSCH is The PHICH resource is calculated from the lowest PRB index of the allocated PRB and the cyclic shift value of the DMRS field included in the scheduling grant.
  • the cyclic shift values can be allocated respectively, or in the 2-B embodiment, a plurality of resource allocation information for multiple subframes can be allocated in one uplink DCI.
  • the downlink control channel including the uplink scheduling grant is composed of TBs in units of subframes, and in detail, when the scheduling grant is allocated for multiple subframes, the details of the 3-A, 3-B, Divided into 3-C embodiments can be implemented.
  • the controller 2010 can check the response signal HARQ-ACK in the PHICH resource calculated from the cyclic shift value of the DMRS field used in each subframe transmitting the PUSCH. have.
  • the controller 2010 may check the response signal HARQ-ACK in the PHICH resource calculated from the lowest PRB index value according to the first slot of the subframe transmitting the PUSCH.
  • control unit 2010 calculates any one or more of a group index or a sequence index of the PHICH resource by using the subframe index transmitting the PUSCH and transmits the response signal (HARQ-) in the PHICH resource. ACK).
  • the PHICH timing is set based on the last subframe of the PUSCH transmitted in the multiple subframe scheduling.
  • the PHICH transmission timing is set based on the transmission timing of the PDCCH and EPDCCH including a scheduling grant to perform the multi-subframe scheduling.
  • the receiver 2030 in the network in which one or more TBs are configured in multiple subframes is provided.
  • a downlink including a PGCH / EPDCCH, which is a scheduling grant and a downlink control channel including the scheduling grant, and a PDSCH corresponding to the indication of the PDCCH / EPDCCH is received from the base station.
  • the controller 2010 generates an uplink PUCCH by including a response signal (HARQ-ACK) of each PDSCH using a PUCCH resource calculated from a PDCCH or an EPDCCH including the scheduling grant.
  • the transmitter 2020 transmits the uplink PUCCH.
  • one TB is configured in units of multiple subframes, a scheduling grant is allocated for multiple subframes, and the controller 2010 performs the scheduling.
  • the PUCCH resource is used by using any one or more of a lowest CCE index of a PDCCH including a grant, a lowest eCCE index of an EPDCCH, an RRC parameter, offset information included in a DCI format of the PDCCH or an EPDCCH, and a parameter for an EPDCCH PRB set q. Calculate.
  • the controller 2010 may combine any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or if the scheduling grant is
  • the PUCCH resource may be calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q. .
  • TB is configured in each subframe unit, a scheduling grant is allocated for each subframe, and the controller 2010 is the lowest of the PDCCH including the scheduling grant.
  • the PUCCH resource is calculated using at least one of a CCE index, a lowest eCCE index of an EPDCCH, an RRC parameter, offset information included in the DCI format of the PDCCH or EPDCCH, and a parameter for an EPDCCH PRB set q.
  • the PUCCH resource for the PDSCH transmitted in each subframe may be distinguished.
  • the PDSCH may be configured to use an index of a subframe in which the PDSCH is transmitted, to use a different HARQ process number for the PDSCH, or to use index information of a subframe included in a scheduling grant for the PDSCH.
  • the controller 2010 may combine any one of a lowest CCE index of the PDCCH, an RRC parameter, and offset information included in the DCI format of the PDCCH, or the scheduling grant.
  • the PUCCH resource may be calculated by combining one or more of the lowest eCCE index of the EPDCCH, an RRC parameter, offset information included in the DCI format of the EPDCCH, and a parameter for the EPDCCH PRB set q. have.
  • the network configures a TB in units of subframes, and a scheduling grant may be allocated for multiple subframes.
  • a scheduling grant is included in a PDCCH.
  • the scheduling grant is included in the EPDCCH.
  • the controller 2010 may calculate the PUCCH resource including a subframe index in which the PDSCH indicated by the PDCCH including the PDCCH including the scheduling grant or the downlink SPS release is transmitted.
  • the control unit 2010 performs HARQ in the DCSCH format of the PDSCH transmitted subframe index, EPDCCH-PRB-set, and EPDCCH indicated by the EPDCCH including the EPDCCH including the scheduling grant or the downlink SPS release.
  • the PUCCH resource may be calculated by using all offset resource fields and selectively applying a value determined at an antenna port when transmitting multiple antennas of an EPDCCH.
  • the controller 2010 transmits a subframe index, a slot number, a HARQ process number, and a PUCCH to which a PDSCH indicated by a PDCCH or an EPDCCH including a scheduling grant is transmitted. It can be controlled to be calculated using any one or more of the antenna port number (transport) used in the transmission.
  • the base station controls the HARQ process number for the PDSCH to be set, and the controller 2010 of the terminal may use the same.
  • the present invention relates to a method and apparatus for transmitting and receiving a response signal (HARQ-ACK) in downlink for transmission.
  • the terminal transmits the response signal
  • the PUCCH resource at the base station described above The present invention relates to a method for resolving ambiguity for reception of a UE, and a method and apparatus for setting / transmitting a PUCCH resource for transmitting a HARQ-ACK transmitted from a terminal through a PUCCH, and a method for receiving the same at a base station and the same Relates to a device.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention porte sur un procédé permettant d'émettre et de recevoir un signal de réponse (HARQ-ACK) dans une liaison descendante et un appareil associé. Les étapes d'un procédé permettant d'émettre, au moyen d'une station de base, un signal de réponse (HARQ-ACK) dans une liaison descendante selon un mode de réalisation de la présente invention consistent : à définir, au moyen de la station de base, un ou plusieurs TB (blocs de transport) dans des sous-trames multiples ; à émettre, vers un terminal, une liaison descendante configurée pour indiquer une autorisation de planification ; à recevoir, du terminal, une liaison montante comprenant un PUSCH correspondant à l'indication d'autorisation de planification ; et à émettre, vers le terminal dans la liaison descendante, une ressource de PHICH produite sur la base d'une valeur de décalage cyclique pour un champ DMRS compris dans l'autorisation de planification et des informations sur les TB ou les sous-trames, la ressource de PHICH comprenant le signal de réponse reçu (HARQ-ACK) du PUSCH. En outre, la présente invention porte sur un procédé permettant d'émettre et de recevoir un signal de réponse dans une liaison montante en réponse à une liaison descendante et un appareil associé. Les étapes d'un procédé permettant de recevoir, au moyen d'une station de base, un signal de réponse dans une liaison montante en réponse à une liaison descendante selon un mode de réalisation de la présente invention consistent : à définir, au moyen de la station de base, un ou plusieurs TB dans des sous-trames multiples ; à émettre, vers un terminal, une liaison descendante comprenant un PDCCH (canal de commande en liaison descendante physique) et/ou un EPDCCH comprenant une autorisation de planification et un PDSCH (canal partagé en liaison descendante physique) correspondant à l'indication d'autorisation de planification ; et à émettre, au moyen du terminal, une ressource de PUCCH (canal de commande en liaison montante physique) de liaison montante produite sur la base du PDCCH ou de l'EPDCCH comprenant l'autorisation de planification, la ressource de PUCCH comprenant un signal de réponse (Requête de répétition automatique hybride ACK, HARQ-ACK) de chaque PDSCH.
PCT/KR2014/003921 2013-05-06 2014-05-02 Procédé permettant d'émettre et de recevoir un signal de réponse et appareil associé Ceased WO2014182009A1 (fr)

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KR10-2013-0050792 2013-05-06
KR20130050792 2013-05-06
KR20130054032 2013-05-13
KR10-2013-0054032 2013-05-13
KR20130155522A KR20140131852A (ko) 2013-05-06 2013-12-13 하향링크에서 harq-ack를 전송 및 수신하는 방법 및 그 장치
KR10-2013-0155522 2013-12-13
KR10-2013-0163458 2013-12-26
KR1020130163458A KR20140134211A (ko) 2013-05-13 2013-12-26 하향링크에 대한 상향링크로의 응답 신호를 전송 및 수신하는 방법 및 그 장치

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