WO2015046800A1 - Procédé pour définir la synchronisation d'un canal de commande en fonctionnement combiné tdd-fdd et appareil associé - Google Patents

Procédé pour définir la synchronisation d'un canal de commande en fonctionnement combiné tdd-fdd et appareil associé Download PDF

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Publication number
WO2015046800A1
WO2015046800A1 PCT/KR2014/008639 KR2014008639W WO2015046800A1 WO 2015046800 A1 WO2015046800 A1 WO 2015046800A1 KR 2014008639 W KR2014008639 W KR 2014008639W WO 2015046800 A1 WO2015046800 A1 WO 2015046800A1
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Prior art keywords
scell
pcell
control channel
duplex mode
tdd
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PCT/KR2014/008639
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English (en)
Korean (ko)
Inventor
노민석
최우진
Original Assignee
주식회사 케이티
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Priority claimed from KR20140061203A external-priority patent/KR20150035673A/ko
Application filed by 주식회사 케이티 filed Critical 주식회사 케이티
Priority to CN201480053610.6A priority Critical patent/CN105580298B/zh
Priority to US15/024,899 priority patent/US20160219543A1/en
Publication of WO2015046800A1 publication Critical patent/WO2015046800A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present invention relates to a control channel timing setting method and apparatus therefor for uplink transmission of a terminal configured with cells operating in different duplex modes, and more particularly, through one or more cells operating in different duplex modes.
  • the terminal for performing the present invention relates to the timing of a control channel for transmitting data to a base station.
  • 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.
  • deployments such as a plurality of cells or small cells are introduced, there is a need for a technique and a method for enabling carrier aggregation to be applicable in various deployment scenarios.
  • the terminal may communicate with the base station through a plurality of cells.
  • the plurality of cells configured in the terminal may be divided into primary cells (PCell) and secondary cells (Secondary Cells, SCells) according to their functions.
  • PCell primary cells
  • SCells Secondary Cells
  • the PCell may provide a secure input, may be changed only through a handover procedure, and may transmit a control channel for uplink.
  • SCells may be configured in the form of a set of serving cells together with a PCell depending on UE capability.
  • the present invention provides a method for processing a control channel by a terminal configured with a PCell and a SCell operating in different duplex modes, wherein each of the PCell and the SCell is self-carrier scheduled and the duplex of the PCell and the SCell, respectively.
  • the present invention provides a method comprising transmitting a PUSCH to each of a PCell and a SCell based on a received control channel according to a control channel reception timing for a mode uplink transmission.
  • the present invention also provides a method for processing a control channel by a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in an FDD duplex mode, wherein the SCell is cross-carrier scheduled from the PCell and the uplink according to the duplex mode of the PCell.
  • the present invention also provides a method for processing a control channel by a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in an FDD duplex mode, wherein the SCell is cross-carrier scheduled from the PCell and is uplinked according to the duplex mode of the SCell.
  • the present invention also provides a method for processing a control channel by a terminal configured with a PCell operating in an FDD duplex mode and a SCell operating in a TDD duplex mode, wherein the SCell is cross-carrier scheduled from the PCell and an uplink according to the duplex mode of the SCell.
  • the present invention also provides a method for processing a control channel by a terminal configured with a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode, wherein the SCell is cross-carrier scheduled from the PCell and the uplink according to the duplex mode of the PCell.
  • the present invention also provides a method for controlling a PUSCH transmission of a terminal configured with a PCell and a SCell in which a base station operates in a different duplex mode, controlling each of the PCell or the SCell to be self-carrier scheduled and the duplex mode of each of the PCell and the SCell. And receiving a PUSCH transmitted to each of the PCell and the SCell based on the control channel transmitted from each of the PCell and the SCell according to the control channel reception timing for the uplink transmission of the PLL.
  • the present invention also provides a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in a TDD duplex mode, the PCell controlling the cross carrier scheduling of the SCell and the duplex of the PCell.
  • a method for receiving a PUSCH transmitted to an SCell based on a control channel for uplink transmission of an SCell transmitted to a PCell according to a control channel reception timing for an uplink transmission according to a mode is provided.
  • the present invention also provides a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in a TDD duplex mode, and controlling the PCell to cross-carrier schedule the SCell and the duplex of the SCell.
  • a method for receiving a PUSCH transmitted to an SCell based on a control channel for uplink transmission of an SCell transmitted to a PCell according to a control channel reception timing for an uplink transmission according to a mode is provided.
  • the present invention also provides a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in an FDD duplex mode and an SCell operating in a TDD duplex mode, the PCell controlling cross-carrier scheduling of the SCell and the duplex of the SCell.
  • a method for receiving a PUSCH transmitted to an SCell based on a control channel for uplink transmission of an SCell transmitted to a PCell according to a control channel reception timing for an uplink transmission according to a mode is provided.
  • the present invention provides a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in the FDD duplex mode and the SCell operating in the TDD duplex mode, the PCell control to cross-carrier scheduling the SCell and the duplex of the PCell
  • a method for receiving a PUSCH transmitted to an SCell based on a control channel for uplink transmission of an SCell transmitted to a PCell according to a control channel reception timing for an uplink transmission according to a mode is provided.
  • the present invention is a PCell and SCell operating in different duplex mode is configured in the terminal to process the control channel, the control unit for controlling the PCell and SCell each of the self-carrier scheduling and the uplink of the duplex mode of each of the PCell and SCell
  • a terminal apparatus including a transmitter for transmitting a PUSCH to each of a PCell and a SCell based on a control channel received according to a control channel reception timing for transmission.
  • the present invention also provides a PCell operating in the TDD duplex mode and a SCell operating in the FDD duplex mode to process a control channel, the control unit for controlling the SCell to cross-carrier scheduling from the PCell according to the duplex mode of the PCell
  • a terminal device including a transmitter for transmitting a PUSCH to an SCell based on a control channel received from a PCell according to a control channel reception timing for uplink transmission.
  • the present invention also provides a PCell operating in the TDD duplex mode and a SCell operating in the FDD duplex mode to process a control channel.
  • a terminal device including a transmitter for transmitting a PUSCH to an SCell based on a control channel received from a PCell according to a control channel reception timing for uplink transmission.
  • the present invention also provides a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode to process a control channel, the control unit for controlling the SCell to cross-carrier scheduling from the PCell according to the duplex mode of the SCell
  • a terminal device including a transmitter for transmitting a PUSCH to an SCell based on a control channel received from a PCell according to a control channel reception timing for uplink transmission.
  • the present invention also provides a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode to process a control channel, wherein the control unit controls the SCell to be cross-carrier scheduled from the PCell and according to the duplex mode of the PCell.
  • a terminal device including a transmitter for transmitting a PUSCH to an SCell based on a control channel received from a PCell according to a control channel reception timing for uplink transmission.
  • the present invention is a base station for controlling the PUSCH transmission of the terminal configured PCell and SCell operating in a different duplex mode, the control unit for controlling each PCell or SCell so that the self-carrier scheduling and uplink of the duplex mode of each of the PCell and SCell According to a control channel reception timing for link transmission, a base station apparatus including a receiver for receiving a PUSCH transmitted to each of the PCell and the SCell based on the control channel transmitted from each of the PCell and the SCell is provided.
  • the present invention provides a base station for controlling PUSCH transmission of a terminal configured with a PCell operating in the TDD duplex mode and a SCell operating in the FDD duplex mode, the control unit for controlling the PCell to cross-carrier scheduling the SCell in the duplex mode of the PCell According to the control channel reception timing for the uplink transmission according to the base station apparatus including a receiving unit for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell.
  • the present invention provides a base station for controlling PUSCH transmission of a terminal configured with a PCell operating in the TDD duplex mode and a SCell operating in the FDD duplex mode, the control unit for controlling the PCell to cross-carrier scheduling the SCell in the duplex mode of the SCell According to the control channel reception timing for the uplink transmission according to the base station apparatus including a receiving unit for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell.
  • the present invention provides a base station for controlling PUSCH transmission of a terminal configured with a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode, the control unit for controlling the PCell to cross-carrier scheduling the SCell in the duplex mode of the SCell According to the control channel reception timing for the uplink transmission according to the base station apparatus including a receiving unit for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell.
  • the present invention provides a base station for controlling PUSCH transmission of a terminal configured with a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode, the control unit for controlling the PCell to cross-carrier scheduling the SCell in the duplex mode of the PCell According to the control channel reception timing for the uplink transmission according to the base station apparatus including a receiving unit for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell.
  • the terminal and the base station performing the carrier aggregation operating in different duplex mode has an effect that can solve the ambiguity of the procedure to operate according to the configuration of the PCell and the SCell.
  • the accuracy of uplink and downlink data transmission / reception operations may be improved, thereby improving data transmission / reception reliability according to carrier aggregation.
  • 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 illustrating various scenarios of carrier aggregation.
  • FIG. 8 is a diagram illustrating a UL-DL configuration on a TDD frame structure.
  • FIG. 9 illustrates timing of PDCCH / EPDCCH for TDD UL transmission under a TDD UL-DL configuration.
  • FIG. 10 illustrates PHICH timing for TDD UL HARQ-ACK transmission under a TDD UL-DL configuration.
  • 11 to 17 exemplarily illustrate a case where a TDD Cell and an FDD Cell having respective TDD UL-DL configurations 0 to 6 become CAs for a TDD-FDD joint operation and a CA.
  • FIG. 18 is a diagram illustrating an example of an operation when a terminal is self-carrier scheduled according to another embodiment of the present invention.
  • 19 is a diagram illustrating an example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • 20 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • 21 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • 22 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • FIG. 23 is a diagram illustrating an example of an operation of a base station when a terminal is self-carrier scheduled according to another embodiment of the present invention.
  • 24 is a diagram illustrating an example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • 25 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • FIG. 26 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • FIG. 27 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • FIG. 28 is a diagram illustrating a configuration of a terminal according to another embodiment of the present invention.
  • 29 is a diagram illustrating a configuration of a base station according to another embodiment of the present invention.
  • 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 a viewpoint of a user terminal or 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 expressed 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 or 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, and the EPDCCH 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
  • Low power nodes represent nodes that use lower transmit (Tx) power than typical macro nodes.
  • a small cell could be constructed using a low power remote radio head (RRH), which is a geographically dispersed antenna within macro cell coverage.
  • RRH remote radio head
  • the macro cell and the RRH cell are constructed to be scheduled under the control of one base station.
  • an ideal backhaul is required between the macro cell node and the RRH.
  • An ideal backhaul means a backhaul that exhibits very high throughput and very low latency, such as optical fiber, dedicated point-to-point connections using LOS microwaves (Line Of Sight microwave).
  • non-ideal backhaul backhaul that exhibits relatively low throughput and large delay, such as digital subscriber line (xDSL) and Non LOS microwaves.
  • the plurality of serving cells may be merged through the single base station-based CA technology described above to provide a service to the terminal. That is, a plurality of serving cells may be configured for a terminal in a Radio Resource Control (RRC) connected state, and when an ideal backhaul is established between the macro cell node and the RRH, the macro cell And the RRH cell may be configured with serving cells to provide a service to the terminal.
  • RRC Radio Resource Control
  • the terminal may have only one RRC connection with the network.
  • one serving cell is a Non-Access Stratum (hereinafter referred to as 'NAS') mobility information (e.g., TAI: Tracking Area Identity) and one serving cell provides security input in RRC connection reset / handover.
  • 'NAS' Non-Access Stratum
  • TAI Tracking Area Identity
  • SCells Secondary Cells
  • SCells may be configured as a serving cell together with a PCell.
  • the present invention provides a joint operation between FDD and TDD to a UE belonging to a corresponding base station when a small cell and an arbitrary cell / base station / RRH / antenna / RU support different duplexes, that is, FDD and TDD in a multi-cell structure.
  • An operation method and apparatus of a terminal for enabling an operation), a base station method using the method, and an apparatus thereof are provided.
  • each duplex mode is used in the macro cell and the small cell and any cell / base station / RRH / antenna / RU, and CA and joint operations between the macro cell and the small cell, and uplink transmission of the terminal
  • 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.
  • the deployment of the small cell is divided in more detail according to whether or not to use the same frequency spectrum as the macro in terms of spectrum. The detailed configuration of the scenario will be described with reference to FIGS. 2 to 6.
  • FIG. 2 is a diagram illustrating a small cell deployment scenario.
  • FIG. 2 shows a typical representative configuration for the scenario of FIGS. 3 to 6.
  • 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 is 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 a 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.
  • Macro cell 511 is outdoors, 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 frequencies F1 and F2 used in the various small cell scenarios of FIGS. 1 and 2 to 6 described above may be frequencies supporting the same duplex mode, or F1 and F2 may have different duplex modes.
  • F1 may be a frequency that supports the FDD mode
  • F2 may be a frequency that supports the TDD mode or vice versa.
  • FIG. 7 is a diagram illustrating various scenarios of carrier aggregation.
  • the corresponding F1 and F2 may be frequencies supporting the same duplex mode, or the frequencies supporting different duplex modes may be considered.
  • F1 and F2 cells are co-located and overlapped under almost the same coverage.
  • Two layers are scenarios that provide sufficient coverage and mobility, and scenarios in which aggregation between overlapped F1 and F2 cells are possible.
  • F1 and F2 cells co-locate and overlap, but the coverage of F2 is smaller than that of F1.
  • F1 has sufficient coverage, mobility support is performed based on F1 coverage, and
  • F2 is a scenario used for improving throughput, and a scenario in which overlapping F1 and F2 cells are merged is possible.
  • F1 and F2 cells co-locate, but F2 antennas are directed to the cell edge to increase cell edge throughput.
  • Mobility support is performed based on F1 coverage, where F1 has sufficient coverage but F2 is potentially a coverage hole, and F1 and F2 cells on the same eNB can be merged where coverage overlaps. That is the scenario.
  • Scenario 740 is a scenario in which F1 has macro coverage and RRH at F2 is used to improve throughput in hot spot area. Mobility support is performed based on F1 coverage and with F1 macro cell. This is a scenario in which F2 RRHs cells can be merged.
  • F1 and F2 cells in the same eNB is a scenario that can be merged where the coverage overlap.
  • the terminal when the terminal configures dual connectivity, forms an RRC connection with the terminal, terminates the base station or S1-MME providing a cell (for example, a PCell), which is a reference for handover, and cores.
  • a base station serving as a mobility anchor for a network is described as a master base station or a first base station.
  • the master base station or the first base station may be a base station providing a macro cell, and may be a base station providing any one small cell in a dual connectivity deployment between small cells.
  • a base station that is distinguished from a master base station and provides additional radio resources to a terminal is described as a secondary base station or a second base station.
  • the first base station (master base station) and the second base station (secondary base station) may provide at least one cell to the terminal, respectively, and the first base station and the second base station may be connected through an interface between the first base station and the second base station. have.
  • a cell associated with the first base station may be referred to as a macro cell, and a cell associated with the second base station may be referred to as a small cell for clarity.
  • a cell associated with the first base station may also be described as a small cell.
  • the macro cell may mean each of at least one or more cells, and may be described as representing a whole cell associated with the first base station.
  • the small cell may also mean each of at least one or more cells, and may also be described as representing a whole cell associated with the second base station.
  • the cell may be a cell associated with the first base station.
  • the cell of the second base station may be described as another small cell or another small cell.
  • the macro cell may be associated with the master base station or the first base station
  • the small cell may be associated with the secondary base station or the second base station
  • a base station or a second base station may be associated with the macro cell, and the present invention also applies to a situation where the master base station or the first base station is associated with the small cell.
  • FDD may mean frame structure type 1 and TDD may mean frame structure type 2.
  • carrier aggregation in each of FDD and TDD duplex modes can be considered.
  • carrier aggregation in the same mode as in each of FDD and TDD it may be configured to distinguish component carriers (component carriers, CCs) as follows.
  • PCell primary cell
  • the terminal When the CA is configured, the terminal has one RRC connection with the network, and one serving cell is NAS mobility information at the time of RRC connection establishment / re-establishment / handover. (NAS mobility information), and one serving cell provides a security input during RRC connection reset / handover.
  • NAS mobility information NAS mobility information
  • Such cells are referred to as primary cells.
  • the carrier corresponding to the PCell is a downlink primary component carrier (DL PCC)
  • DL PCC downlink primary component carrier
  • UPCC uplink primary component carrier
  • the PCell may be changed only by a handover procedure, and the PCell is used for transmission of the PUCCH.
  • PCell unlike SCells, PCell cannot be de-activated.
  • re-establishment is triggered when the PCell experiences the RLF, and no reset occurs when the SCell experiences the RLF.
  • NAS information is also obtained from PCell.
  • SCells Secondary Cells
  • SCells may be configured in the form of a set of serving cells with a PCell.
  • the carrier corresponding to the SCell in downlink is a downlink secondary component carrier (DL SCC)
  • the carrier corresponding to the SCell in the uplink is an uplink secondary component carrier (UL SCC). to be.
  • DL SCC downlink secondary component carrier
  • UL SCC uplink secondary component carrier
  • a set of serving cells configured in one terminal always consists of one PCell and one or more SCells.
  • the number of serving cells that can be configured depends on the aggregation capability of the terminal.
  • Reconfiguration, addition and removal of SCells may be performed by RRC, and RRC may be used with a target PCell during intra-LTE handover in LTE. You can reconfigure, add, or remove SCells.
  • RRC signaling is used to transmit all required system information of the SCell. In the connected mode, the terminal does not need to directly obtain broadcast system information from the SCells.
  • FIG. 8 illustrates a UL-DL configuration on a TDD frame structure.
  • D is a downlink subframe
  • U is an uplink subframe
  • S is a special subframe.
  • FIG. 9 illustrates timing of PDCCH / EPDCCH for TDD UL transmission under a TDD UL-DL configuration.
  • the present invention relates to timing of PDCCH / EPDCCH for transmission of a TDD UL under an existing TDD UL-DL configuration.
  • the PDCCH / EPDCCH detected in a corresponding nth subframe is n. This means that the PUSCH is transmitted in the + kth subframe.
  • the PUSCH for the PDCCH / EPDCCH and the PHICH detected in the 0 th subframe in the TDD UL-DL configuration 0 may be transmitted in the 4 th subframe, and the 1 st subframe in the 0 TDD UL-DL configuration.
  • the PUSCH for the PDCCH / EPDCCH and PHICH detected at may be transmitted in the 7th subframe.
  • FIG. 10 illustrates PHICH timing for TDD UL HARQ-ACK transmission under a TDD UL-DL configuration.
  • the present invention relates to timing of PHICH transmission for HARQ-ACK transmission according to TDD UL under an existing TDD UL-DL configuration, and HARQ-ACK for PUSCH transmitted in subframe n.
  • the PHICH timing which is transmission, may transmit the PHICH in the DL subframe of the n + k_PHICH th.
  • carrier aggregation between a duplex mode of each of the FDD and the TDD is considered.
  • aggregation and joint operation between carriers having different duplex modes, such as FDD and TDD are not considered.
  • control channel and PUSCH transmission timing and the HARQ-ACK for UL transmission in the case of considering the duplex mode FDD and TDD joint operation and FDD and TDD carrier aggregation are considered. It is intended to propose a specific method and apparatus for the PHICH timing for transmitting the PHY.
  • the present invention can be applied when the base station considers a carrier operation of FDD and TDD and a joint operation of FDD and TDD, which are different duplex modes.
  • the operation of the terminal and the base station may be different from the case of performing carrier aggregation between the same duplex mode.
  • the PUSCH transmission timing according to the reception of the control channel (PDCCH / EPDCCH) needs to be defined differently.
  • PHICH timing for transmitting HARQ-ACK for UL transmission needs to be defined differently. Therefore, the present invention proposes an operation method of a terminal, an operation setting method for a terminal from a base station, and a terminal apparatus and a base station apparatus related thereto.
  • the control channel (PDCCH / EPDCCH) is received according to reception.
  • a method of operating a terminal and a base station regarding a PHICH timing for transmitting a PUSCH transmission timing and a HARQ-ACK for UL transmission is proposed.
  • the present invention provides timing of reception of a control channel (PDCCH / EPDCCH), which may vary according to the duplex mode of each cell designated as a PCell and a SCell during a TDD-FDD joint operation and a carrier aggregation. And a method related to PUSCH transmission timing according thereto.
  • a control channel PDCCH / EPDCCH
  • the TDD-FDD joint operation and timing of PDCCH / EPDCCH for UL transmission in CA and UE procedure related to PHICH timing for transmitting an associated HARQ-ACK are defined.
  • Carriers operating in different duplex modes are merged, or when performing joint operations between carriers operating in different duplex modes, the embodiments are divided and described according to the duplex modes of the PCell and the SCell.
  • TDD PCell and FDD is SCell
  • the TDD DL subframe designated as the TDD PCell exists only in a specific subframe according to the UL-DL configuration, whereas the UL subframe for the FDD SCell exists in all subframes in one radio frame.
  • a control channel for UL transmission defined in each duplex When the timing of PDCCH / EPDCCH) and the PHICH timing for transmitting HARQ-ACK are followed, each of the independent serving cells may operate well.
  • PUSCH may be transmitted according to the PUSCH transmission timing. That is, when the PCell is in the TDD or FDD duplex mode, the PUSCH may be transmitted according to the control channel and the PUSCH timing of the TDD or FDD.
  • the SCell may transmit the PUSCH according to the control channel and the PUSCH timing of the TDD or FDD when the SCell is in the TDD or FDD duplex mode.
  • cross-carrier scheduling In a terminal operating by a carrier merging or joint operation, it is called cross-carrier scheduling when a specific carrier transmits and receives control information of another carrier and performs scheduling.
  • each carrier since each carrier does not perform cross-carrier scheduling by transmitting and receiving control information, it is called non-cross carrier scheduling or self-carrier scheduling because scheduling is performed on each carrier. .
  • the terminal and the base station may operate according to the PHICH timing according to each duplex mode.
  • TDD PCell transmits PDCCH / EPDCCH for UL transmission to FDD SCell to control FDD SCell UL transmission. If a corresponding case occurs, ambiguity may occur in whether the UL data should be transmitted according to the timing specified in the TDD PCell or the UL data according to the FDD timing relationship according to the FDD SCell.
  • the HARQ timing for the UL transmitted in the existing FDD SCell transmits the UL in the nth subframe by the UL grant received in the existing (n-4) th subframe and transmits the (n + 4) th time.
  • the PHICH timing of HARQ-ACK was used. Accordingly, in the case of cross-carrier scheduling, when there is no DL subframe in the TDD PCell based on the nth UL transmission, scheduling may be performed according to PDCCH / EPDCCH in the corresponding UL. No problem occurs.
  • the UE cannot receive a PHICH for transmitting the HARQ-ACK for the corresponding UL. Occurs.
  • the transmission timing of the UL grant for transmitting the scheduling information of the PDCCH / EPDCCH for the UL transmission for the corresponding FDD SCell and the HARQ for the corresponding UL transmission There is a need for a method for improving transmission timing of a PHICH for transmitting an -ACK.
  • duplex mode of the PCell is TDD and the duplex mode of the SCell is FDD.
  • the timing of the PDCCH / EPDCCH for UL transmission for the FDD SCell is transmitted to the TDD PCell. Can be set to match. Meanwhile, a method of applying a timing used by the TDD PCell as a PHICH timing for transmitting HARQ-ACK for UL transmission to the FDD SCell may be considered.
  • the UE transmits the PUSCH for the n th PDCCH / EPDCCH received the scheduling information (grant) in the (n-4) th subframe configured in the existing FDD-FDD CA of the FDD SCell
  • PDCCH / EPDCCH and PHICH timing may be set regardless of whether the corresponding HARQ-ACK is transmitted through the PHICH in the DL of the n + 4th subframe, which is the PHICH transmission timing of the existing FDD. That is, the reception timing of the PDCCH / EPDCCH for the TDD UL shared channel associated with the UL-DL subframe configuration used by the TDD PCell and the PHICH timing for transmitting HARQ-ACK are applied to the FDD SCell.
  • This method is applied to the FDD SCell as if the TDD SCell was added. That is, the PUSCH transmission of the SCell may be performed based on the timing of the UL-DL configuration configured to be used in the TDD PCell. In other words, the PUSCH transmission of the SCell may be transmitted based on the control channel received according to the control channel reception timing for the uplink configured to be used in the PCell.
  • the DL subframe of the TDD PCell for scheduling UL of the nth subframe for the aforementioned FDD SCell does not exist or is transmitted in a specific subframe.
  • the problem that there is no DL subframe on the TDD PCell for receiving the PHICH of the HARQ-ACK for the UL can be improved.
  • Second embodiment Control channel and PUSCH timing for UL to be transmitted to FDD SCell according to the timing of FDD SCell.
  • the PHICH timing for the uplink signal transmitted in the UL subframe of the FDD SCell under the specific UL-DL configuration configured in the specific TDD PCell is based on the TDD PCell timing.
  • the problem of wasting frames may occur.
  • the timing of the PCell according to the UL-DL configuration set in the TDD PCell is determined by the timing of receiving the PDCCH / EPDCCH for the UL transmitted from the FDD SCell and / or the PHICH timing, which is HARQ-ACK for the UL transmission.
  • the FDD SCell UL subframe mapped with the DL subframe of the TDD PCell, since the corresponding subframe was a DL subframe in the existing TDD PCell, PDCCH / EPDCCH and PHICH related timing information for UL transmission do not exist. Does not cause problems.
  • the scheduling grant timing and the PHICH from the TDD DL subframe There is no timing.
  • the UE cannot transmit the UL subframe belonging to the corresponding FDD SCell. This may reduce the uplink data rate of the FDD SCell by 40% to 90% according to the UL-DL configuration configured for each TDD PCell.
  • 11 to 17 exemplarily illustrate a case where a TDD Cell and an FDD Cell having respective TDD UL-DL configurations 0 to 6 become CAs for a TDD-FDD joint operation and a CA.
  • 11 through 17 show examples of a case where a TDD Cell and an FDD Cell having respective TDD UL-DL configurations are CAs for respective TDD-FDD joint operations and CAs.
  • the subframe shaded in the UL frequency band in the FDD Cell when operating in the TDD-FDD joint operation and CA, the timing of the PDCCH / EPDCCH for the transmission to the FDD SCell UL and the transmission of the corresponding FDD SCell UL
  • FIG. 11 is a diagram illustrating a case where a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 0 according to an embodiment of the present invention become CA.
  • subframes 0, 1, 5, and 6 of the FDD SCell have a subframe of the TDD PCell having the same index as the corresponding subframe as a downlink or a special subframe. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, an operation for uplink signal transmission of subframes 0, 1, 5, and 6 of the FDD cell A problem arises in which this cannot be done. This causes subframe waste of the FDD SCell.
  • FIG. 12 is a diagram illustrating a case in which a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 1 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is configured as a downlink or a special subframe. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, the uplink signal of subframes 0, 1, 4, 5, 6, and 9 of the FDD cell The problem arises that the operation on the transmission cannot be performed. This causes subframe waste of the FDD SCell.
  • FIG. 13 is a diagram illustrating a case in which a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 2 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is configured as a downlink or a special subframe. have. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, subframes 0, 1, 3, 4, 5, 6, 8, and 9 of the FDD Cell There is a problem that the operation for the uplink signal transmission of the can not be performed. This causes subframe waste of the FDD SCell.
  • FIG. 14 illustrates a case in which a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 3 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is configured as a downlink or a special subframe. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, the uplink of subframes 0, 1, 5, 6, 7, 8, and 9 of the FDD Cell is uplinked. There arises a problem that the operation for link signal transmission cannot be performed. This causes subframe waste of the FDD SCell.
  • FIG. 15 is a diagram illustrating a case where a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 4 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is configured as a downlink or a special subframe. have. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, subframes 0, 1, 4, 5, 6, 7, 8, and 9 of the FDD Cell There is a problem that the operation for the uplink signal transmission of the can not be performed. This causes subframe waste of the FDD SCell.
  • FIG. 16 is a diagram illustrating a case where a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 5 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is a downlink or special subframe. It is set. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, 0, 1, 3, 4, 5, 6, 7, 8, and 9 of the FDD Cell.
  • an operation for uplink signal transmission of a subframe cannot be performed. This causes subframe waste of the FDD SCell.
  • FIG. 17 illustrates a case in which a TDD Cell and an FDD Cell having a TDD UL-DL configuration of 6 according to an embodiment of the present invention become CA.
  • a subframe of the TDD PCell having the same index as the corresponding subframe is configured as a downlink or a special subframe. Therefore, when the FDD SCell is configured to follow the PDCCH / EPDCCH and PHICH timing of the TDD PCell according to the first embodiment described above, it is used to transmit uplink signals of subframes 0, 1, 5, 6, and 9 of the FDD cell. The problem arises that the operation cannot be performed. This causes subframe waste of the FDD SCell.
  • the second embodiment of the present invention provides a method for defining a control channel reception timing for additional UL transmission and ULQ HARQ-ACK PHICH timing for the UL of the corresponding FDD SCell.
  • the control channel reception timing according to the second embodiment of the present invention may follow the timing of the FDD SCell. That is, the PUSCH transmission of the SCell may be transmitted based on the control channel received according to the control channel reception timing for the uplink configured to be used in the SCell.
  • the reception timing of the control channel (PDCCH / EPDCCH) in the TDD PCell for performing PUSCH transmission in the n-th UL subframe of the FDD SCell is a TDD PCell subframe before the (n-4) th minimum.
  • the control channel (PDCCH / EPDCCH) can be set to be transmitted by the PUSCH indicated by the detection (detection).
  • the PHICH transmitting the HARQ-ACK for the PUSCH transmitted in the nth UL subframe may be transmitted in the at least (n + 4) th TDD PCell DL subframe, even if the fastest PHICH is transmitted.
  • the control channel including the UL grant information for the PUSCH transmitted to the FDD SCell, that is, PDCCH / EPDCCH may be received at intervals of 4 ms or 4 TTI with the corresponding PUSCH.
  • Table 1 shows an example of a timing relationship of PDCCH / EPDCCH for uplink data transmission in a TDD PCell according to an embodiment of the present invention.
  • PDCCH / EPDCCH for FDD SCell PUSCH may be equally distributed and transmitted on TDD DL subframes.
  • the PUSCH transmission timing after PDCCH / EPDCCH detection is performed in the TDD PCell subframe may be performed as shown in Table 1 below. That is, this means that (n + k) by PDCCH / EPDCCH detected in the corresponding nth subframe in the TDD PCell in case PDCCH / EPDCCH transmission of UL for the FDD SCell is made in the TDD PCell (cross carrier scheduling). This means that the PUSCH is transmitted on the FDD SCell in the) th subframe.
  • the underlined k value according to each TDD UL-DL configuration is a newly defined additional timing in the existing TDD configuration. That is, in case of TDD UL-DL configuration 0, the PDCCH / EPDCCH received in the 0 th subframe may include PUSCH scheduling information in the UL subframe of the 4 th TDD Cell, which is (n + 4).
  • the FDD SCell of the present invention When the FDD SCell of the present invention is added, 5 may be added to the 0 th subframe of the TDD UL-DL configuration as 5 for the PUSCH scheduling of the 5 th FDD subframe. Accordingly, the PUSCH in the fifth subframe of the FDD SCell may be scheduled based on the PDCCH / EPDCCH received in the zeroth subframe of the TDD PCell.
  • the table shown in Table 1 exemplarily shows timing information of a PUSCH and a PDCCH / EPDCCH for an FDD SCell according to each TDD UL-DL configuration. Accordingly, the transmission timing of the PUSCH of the SCell according to each TDD UL-DL configuration may be independent, and for convenience of description, seven combinations are shown as one table, but may be separately defined. That is, each transmission timing of the PUSCH of the SCell according to the TDD UL-DL configuration of Table 1 may be defined separately.
  • the definition of the PDCCH / EPDCCH timing for the PUSCH transmitted in the FDD SCell UL subframe described with reference to Table 1 above is to equally distribute the PDCCH / EPDCCH for the FDD SCell PUSCH on the TDD DL subframes.
  • Table 1 The definition of the PDCCH / EPDCCH timing for the PUSCH transmitted in the FDD SCell UL subframe described with reference to Table 1 above is to equally distribute the PDCCH / EPDCCH for the FDD SCell PUSCH on the TDD DL subframes.
  • the PDCCH / EPDCCH timing may be configured to be allocated to a specific TDD DL subframe.
  • Tables 2 and 3 exemplarily show a timing relationship between PDCCH / EPDCCH when TDD UL-DL configuration 0 is PCell according to another embodiment of the present invention.
  • PDCCH / EPDCCH for the UL PUSCH of the corresponding FDD SCell may be centrally allocated to a specific TDD DL subframe.
  • the k value of the 0 th subframe may be set to 4, 5, and 6.
  • the PDCCH / EPDCCH received through the 0 th subframe may include PUSCH scheduling information of the (n + k) th subframe. Accordingly, PUSCH scheduling information of UL subframes 5 and 6 of the FDD SCell may be included.
  • PUSCH scheduling information of UL subframes of FDD SCells 5 and 6 may be received through subframe 1 of the TDD PCell.
  • control information for scheduling the PUSCH of the UL subframe of the FDD SCell which cannot be scheduled through the conventional TDD UL-DL configuration, may be configured to be intensively allocated to a specific subframe of the TDD PCell.
  • TDD configuration 0 is taken as an example, the same principle may be applied to other TDD UL-DL configurations.
  • it may be transmitted by including subframe index information for transmitting the corresponding PUSCH on the PDCCH / EPDCCH. That is, the UL subframe index (index) for the corresponding FDD SCell may be indicated by using the UL index information, so that the PUSCH may be transmitted in the corresponding UL subframe.
  • FDD PCell and TDD is SCell
  • a case where the duplex mode of the PCell is FDD and the duplex mode of the SCell may be considered. Even in this case, when the PCell and the SCell are self-carrier scheduled, the terminal may transmit the PUSCH based on the control channel reception timing according to the duplex mode of the PCell and the SCell.
  • control channel reception timing for the PUSCH transmitted in the TDD SCell may be set according to each embodiment as follows to reduce waste of subframes and efficiently transmit PUSCH.
  • the SCell operating in the TDD duplex mode may be added to the PCell operating in the FDD duplex mode.
  • scheduling of the UL subframe for the TDD SCell may be performed from the DL subframe of the FDD PCell.
  • the FDD PCell when cross-carrier scheduling is performed, in the FDD PCell, all subframes are configured as DL subframes in one radio frame, and cross-carrier scheduling is performed. In the FDD PCell performing the UL grant for the TDD SCell is transmitted. In addition, the PHICH for transmitting the HARQ-ACK for the uplink transmission transmitted in the TDD SCell is received in the FDD PCell.
  • the PUSCH transmission and control channel reception timing of the UL transmitted from the TDD SCell may be applied based on the TDD duplex mode of the SCell.
  • the PHICH timing may be set to apply the PHICH timing of the TDD UL used in non-cross carrier scheduling. That is, the PHICH timing of the UL transmitted from the TDD SCell may be set to follow FIG. 10 described above.
  • the PHICH timing according to another embodiment of the present invention is set to be the same as the PHICH timing shown in FIG. 10 so that non-cross-carrier scheduling and cross-carrier scheduling are performed. At this time, it may be set to have the same PHICH timing. That is, when the TDD duplex mode is included, the TDD-TDD CA and the TDD-FDD CA may be set to have the same PHICH timing of the same UE so that the UE may operate.
  • control channel reception timing and the PUSCH transmission timing transmitted to the SCell may be applied according to the TDD UL-DL configuration of the SCell like non-cross carrier scheduling. That is, it can be applied according to the timing table of FIG.
  • the PUSCH transmission of the SCell may be transmitted based on the control channel received according to the control channel reception timing for the uplink configured to be used in the SCell.
  • the timing of the FDD PCell may be applied to the control channel reception timing for the PUSCH transmitted to the TDD SCell and the PUSCH transmission timing according to the control channel reception. That is, the PUSCH transmission of the SCell may be transmitted based on the control channel received according to the control channel reception timing for the uplink configured to be used in the PCell. For example, PDCCH / EPDCCH of the PUSCH transmitted in the nth subframe may be received in the (n-4) th subframe. Or, it may be set to be received in a minimum (n-4) th subframe.
  • the terminal receiving the grant may transmit the UL to the TDD SCell in the n subframe.
  • k may be four.
  • the PUSCH and PHICH timing for the UL transmitted to the TDD SCell is set to match the FDD PCell, so that the same is the case for the FDD-FDD CA and the FDD-TDD CA regardless of the different duplex modes. It may be considered as a method for enabling PHICH timing.
  • the first to fourth embodiments of the present invention described above are scenarios used in the TDD-FDD joint operation and the CA operation, and the CA may be used through two or more component carriers in the UL and the CA in the UL. Not applicable, that is, even when using one component carrier (component carrier) are all applicable.
  • FIG. 18 is a diagram illustrating an example of an operation when a terminal is self-carrier scheduled according to another embodiment of the present invention.
  • a terminal configured with a PCell and a SCell operating in different duplex modes may be configured such that each of the PCell and the SCell is set to self-carrier scheduling and And transmitting the PUSCH to each of the PCell and the SCell based on the received control channel according to the control channel reception timing for the uplink transmission in the duplex mode.
  • a terminal configured with a PCell and a SCell operating in different duplex modes may be self-scheduled (S1810).
  • a control channel including a UL grant for PUSCH transmission of each of the PCell and the SCell may be transmitted in each of the PCell and the SCell.
  • the terminal may receive the control channel transmitted from each cell and perform PUSCH transmission of the corresponding cell.
  • the terminal may include transmitting a PUSCH to each of the PCell and the SCell based on the received control channel according to the control channel reception timing for the uplink transmission of each of the PCell and the SCell (S1820). For example, in the case of the PUSCH transmitted to the PCell, the terminal may transmit according to the control channel and the PUSCH timing according to the duplex mode of the PCell. In addition, the PUSCH transmitted to the SCell may be transmitted according to the control channel and the PUSCH timing according to the duplex mode of the SCell.
  • the PUSCH may be transmitted at timing based on the duplex mode of the cell regardless of whether the duplex mode of the PCell is TDD or FDD.
  • the control channel may be PDCCH / EPDCCH.
  • 19 is a diagram illustrating an example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in an FDD duplex mode is a method for processing a control channel, wherein the SCell is cross-carrier scheduled from the PCell and the duplex of the PCell. And transmitting the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the mode.
  • a terminal configured with a PCell operating in the TDD duplex mode and an SCell operating in the FDD duplex mode may be cross-carrier scheduled from the PCell (S1910).
  • the control channel transmitted from the PCell includes UL grant information of the SCell, and the terminal may control the PUSCH transmission of the SCell based on the information included in the control channel transmitted from the PCell.
  • the terminal may transmit the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission in the duplex mode of the PCell (S1920).
  • the PUSCH may be transmitted to the SCell according to the control channel and the PUSCH transmission timing of the PCell operating in the TDD duplex mode. That is, the PUSCH transmission subframe may be determined as shown in FIG. 9 according to the TDD UL-DL configuration of the PCell.
  • 20 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • a terminal configured with a PCell operating in a TDD duplex mode and an SCell operating in the FDD duplex mode comprises the steps of cross-carrier scheduling of the SCell from the PCell and the duplex of the SCell. And transmitting the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the mode.
  • the SCell may be cross-carrier scheduled from the PCell (S2010).
  • the control channel transmitted from the PCell includes UL grant information of the SCell, and the terminal may control the PUSCH transmission of the SCell based on the information included in the control channel transmitted from the PCell.
  • the terminal may transmit the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell (S2020).
  • the PUSCH may be transmitted to the SCell according to the control channel and the PUSCH transmission timing of the SCell operating in the FDD duplex mode.
  • the control channel including the UL grant for the PUSCH transmitted in the nth subframe may be received in the (n-4) th subframe. That is, the control channel transmitted and received from the PCell and the PUSCH transmitted to the SCell may have an interval of 4 ms. Or an interval of 4 TTIs.
  • 21 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • a step of cross-carrier scheduling of the SCell from the PCell and duplex of the SCell And transmitting the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the mode.
  • a terminal configured with a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode may be cross-carrier scheduled from the PCell (S2110).
  • the control channel transmitted from the PCell includes UL grant information of the SCell, and the terminal may control the PUSCH transmission of the SCell based on the information included in the control channel transmitted from the PCell.
  • the UE may transmit the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission in the duplex mode of the SCell (S2120).
  • the PUSCH may be transmitted to the SCell according to the control channel and the PUSCH transmission timing of the SCell operating in the TDD duplex mode. That is, a PUSCH transmission subframe may be determined as shown in FIG. 9 according to the TDD UL-DL configuration of the SCell.
  • 22 is a diagram illustrating another example of an operation when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • a method of processing a control channel by a terminal configured with a PCell operating in FDD duplex mode and a SCell operating in TDD duplex mode according to another embodiment of the present invention, the step of cross-carrier scheduling of the SCell from the PCell and the duplex of the PCell And transmitting the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the mode.
  • the terminal configured with the PCell operating in the FDD duplex mode and the SCell operating in the TDD duplex mode may be cross-carrier scheduled from the PCell (S2210).
  • the control channel transmitted from the PCell includes UL grant information of the SCell, and the terminal may control the PUSCH transmission of the SCell based on the information included in the control channel transmitted from the PCell.
  • the terminal may transmit the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for uplink transmission in the duplex mode of the PCell (S2220).
  • the PUSCH may be transmitted to the SCell according to the control channel and the PUSCH transmission timing of the PCell operating in the FDD duplex mode.
  • the control channel including the UL grant for the PUSCH transmitted in the nth subframe may be received in the (n-4) th subframe. That is, the control channel transmitted and received from the PCell and the PUSCH transmitted to the SCell may be set to have an interval of 4 ms. Or it may be set to have an interval of 4 TTI.
  • 23 to 27 are diagrams illustrating operations of a base station according to each embodiment of the present invention.
  • FIG. 23 is a diagram illustrating an example of an operation of a base station when a terminal is self-carrier scheduled according to another embodiment of the present invention.
  • the base station In a method for controlling a PUSCH transmission of a terminal configured with a PCell and a SCell operating in a different duplex mode, the base station according to another embodiment of the present invention, the step of controlling each of the PCell or SCell to self-carrier scheduling and the PCell and the And receiving the PUSCH transmitted to each of the PCell and the SCell based on the control channel transmitted from each of the PCell and the SCell according to the control channel reception timing for the uplink transmission of each of the SCell duplex modes.
  • the base station may control the terminal to be self-carrier scheduled (S2310).
  • the control information related to the PCell is transmitted to the control channel of the PCell
  • the control information related to the SCell is the control channel of the SCell. Can transmit Through this, the terminal may be scheduled as described above using the received control information.
  • the base station may receive the PUSCH transmitted to each of the PCell and the SCell based on the control channel transmitted from each of the PCell and the SCell according to the control channel reception timing for the uplink transmission of the duplex mode of the PCell and the SCell. (S2320). For example, when the terminal transmits a PUSCH to the PCell based on the information of the control channel transmitted to the PCell, the base station may receive it. In addition, if the PUSCH is transmitted to the SCell based on the information of the control channel transmitted to the SCell, the base station may receive it. In this case, the control channel reception and PUSCH transmission timing of each cell may be a timing set according to the duplex mode of each cell.
  • the PUSCH received by the PCell may be a PUSCH transmitted according to a control channel defined according to each UL-DL configuration and a PUSCH transmission timing as shown in FIG. 9.
  • the PUSCH received at the SCell may be a PUSCH transmitted based on the timing of the FDD. That is, when the subframe in which the PDCCH / EPDCCH including the information for PUSCH transmission of the SCell is transmitted is the nth subframe, the subframe in which the received PUSCH is transmitted may be the (n + 4) th subframe.
  • 24 is a diagram illustrating an example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • the base station In a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in the FDD duplex mode, the base station according to another embodiment of the present invention, controlling the PCell to cross-carrier scheduling the SCell And receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell.
  • the base station may control the terminal to control cross carrier scheduling (S2410).
  • the control information related to the SCell is transmitted through a control channel of the PCell, thereby controlling cross-carrier scheduling of the SCell of the terminal.
  • the UL grant information for the PUSCH transmitted to the SCell may be transmitted through the control channel of the PCell.
  • the information indicating that the UL grant of the control channel is related to the SCell is included, so that the UE can confirm that the received control channel information is information related to the SCell.
  • the base station may receive the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell (S2420). For example, when the terminal to be cross-carrier scheduled receives control information on the PUSCH transmitted to the SCell through the PCell, the control channel reception timing and the PUSCH timing may be set based on the duplex mode of the PCell. The base station may receive the PUSCH transmitted in the SCell based on the duplex mode timing of the PCell.
  • a timing set according to the TDD mode which is a duplex mode of the PCell, may be applied to the PDCCH / EPDCCH of the PUSCH transmitted and received in the FDD SCell. That is, in the case of the PCell operating in the TDD duplex mode, the base station may receive the PUSCH transmitted from the SCell according to the control channel reception timing and the PUSCH transmission timing defined according to each TDD UL-DL configuration as shown in FIG. 9.
  • 25 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • the base station In a method for controlling a PUSCH transmission of a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in the FDD duplex mode, the base station according to another embodiment of the present invention, controlling the PCell to cross-carrier scheduling the SCell And receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell.
  • the base station may control the terminal to be cross-carrier scheduled (S2510).
  • the control information related to the SCell is transmitted through a control channel of the PCell, thereby controlling cross-carrier scheduling of the SCell of the terminal.
  • the UL grant information for the PUSCH transmitted to the SCell may be transmitted through the control channel of the PCell.
  • the information indicating that the UL grant of the control channel is related to the SCell is included, so that the UE can confirm that the received control channel information is information related to the SCell.
  • the base station may receive the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell (S2520). For example, when the terminal to be cross-carrier scheduled receives control information on the PUSCH transmitted to the SCell through the PCell, the control channel reception timing and the PUSCH timing may be set based on the duplex mode of the SCell. The base station may receive the PUSCH transmitted in the SCell based on the duplex mode timing of the SCell.
  • a timing set according to the FDD mode which is a duplex mode of the SCell, may be applied to the PDCCH / EPDCCH of the PUSCH transmitted and received in the FDD SCell.
  • the PUSCH transmitted in the nth subframe received by the base station in the SCell may be a PUSCH transmitted based on control information included in the PDCCH / EPDCCH transmitted in the n-4th subframe according to the FDD control channel reception timing. That is, the PDCCH / EPDCCH and PUSCH transmission timing may be 4 ms. Or it may be set at intervals of 4 TTI.
  • FIG. 26 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • controlling the PCell to cross-carrier scheduling the SCell And receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell.
  • the base station may control the terminal to be cross-carrier scheduled (S2610).
  • the control information related to the SCell is transmitted through a control channel of the PCell, thereby controlling cross-carrier scheduling of the SCell of the terminal.
  • the UL grant information for the PUSCH transmitted to the SCell may be transmitted through the control channel of the PCell.
  • the information indicating that the UL grant of the control channel is related to the SCell is included, so that the UE can confirm that the received control channel information is information related to the SCell.
  • the base station may receive the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell (S2620). For example, when the terminal to be cross-carrier scheduled receives control information on the PUSCH transmitted to the SCell through the PCell, the control channel reception timing and the PUSCH timing may be set based on the duplex mode of the SCell. The base station may receive the PUSCH transmitted in the SCell based on the duplex mode timing of the SCell.
  • a timing set according to the TDD mode which is a duplex mode of the SCell, may be applied to the PDCCH / EPDCCH of the PUSCH transmitted and received in the TDD SCell. That is, in case of the SCell operating in the TDD duplex mode, as shown in FIG. 9, the base station may receive the PUSCH transmitted from the SCell according to the control channel reception timing and the PUSCH transmission timing defined according to each TDD UL-DL configuration.
  • FIG. 27 is a diagram illustrating another example of an operation of a base station when a terminal is cross-carrier scheduled according to another embodiment of the present invention.
  • controlling the PCell to cross-carrier scheduling the SCell And receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell.
  • the base station may control the terminal to control cross carrier scheduling (S2710).
  • the control information related to the SCell is transmitted through a control channel of the PCell, thereby controlling cross-carrier scheduling of the SCell of the terminal.
  • the UL grant information for the PUSCH transmitted to the SCell may be transmitted through the control channel of the PCell.
  • the information indicating that the UL grant of the control channel is related to the SCell is included, so that the UE can confirm that the received control channel information is information related to the SCell.
  • the base station may receive the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell (S2720). For example, when the terminal to be cross-carrier scheduled receives control information on the PUSCH transmitted to the SCell through the PCell, the control channel reception timing and the PUSCH timing may be set based on the duplex mode of the PCell. The base station may receive the PUSCH transmitted in the SCell based on the duplex mode timing of the PCell.
  • a timing set according to the FDD mode which is a duplex mode of the PCell, may be applied to the PDCCH / EPDCCH of the PUSCH transmitted and received by the FDD PCell.
  • the PUSCH transmitted in the nth subframe received by the base station in the SCell may be a PUSCH transmitted based on control information included in the PDCCH / EPDCCH transmitted in the n-4th subframe according to the FDD control channel reception timing. That is, the PDCCH / EPDCCH and PUSCH transmission timing may be 4 ms. Or at intervals of 4 TTIs.
  • the PCell / SCell is configured between the terminal and the base station. It is possible to resolve the ambiguity between the UE and the base station for the behavior of the terminal operating according to the configuration of the base station.
  • an access procedure performed between the terminal and the base station and up / downlink data transmission and transmission and reception operations of an uplink / downlink control channel including HARQ operation can be accurately set.
  • to ensure the reliability of data transmission between the terminal and the base station which provides an effect that can increase the data rate of the uplink / downlink.
  • FIG. 28 is a diagram illustrating a configuration of a terminal according to another embodiment of the present invention.
  • the terminal 2800 includes a controller 2810, a transmitter 2820, and a receiver 2830.
  • a PCell and a SCell configured to operate in different duplex modes are configured to process a control channel.
  • the control unit 2810 and PCell and SCell respectively control the PCell and the SCell to be self-carrier scheduled.
  • the transmitter 2820 may transmit a PUSCH to each of the PCell and the SCell based on the received control channel according to the control channel reception timing for the uplink transmission in the duplex mode.
  • the controller 2810 controls the SCell to be cross-carrier scheduled from the PCell.
  • the controller 2810 controls the SCell to be cross-carrier scheduled from the PCell.
  • a transmitter 2820 that transmits the PUSCH to the SCell based on the control channel received from the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell.
  • controller 2810 may control the overall control of the control channel reception timing and the PUSCH transmission timing according to the duplex mode when operating in different duplex modes required to perform the above-described embodiments of the present invention. Control the operation.
  • the receiver 2830 may receive a control channel transmitted at a timing set according to the above-described embodiments. Also, the transmitter 2820 and the receiver 2830 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
  • 29 is a diagram illustrating a configuration of a base station according to another embodiment of the present invention.
  • a base station 2900 includes a receiver 2930, a controller 2910, and a transmitter 2920.
  • the control unit 2910 and the PCell for controlling each of the PCell or SCell self-scheduling and The receiver 2930 may receive a PUSCH transmitted to each of the PCell and the SCell based on the control channel transmitted from each of the PCell and the SCell according to the control channel reception timing for the uplink transmission of each SCell duplex mode.
  • a control unit for controlling the PCell to cross-carrier scheduling And a receiver 2930 for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell may include.
  • a control unit for controlling the PCell to cross-carrier scheduling And a receiver 2930 for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell may include.
  • a control unit for controlling the PCell to cross-carrier scheduling And a receiver 2930 for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the SCell may include.
  • a control unit for controlling the PCell to cross-carrier scheduling And a receiver 2930 for receiving the PUSCH transmitted to the SCell based on the control channel for the uplink transmission of the SCell transmitted to the PCell according to the control channel reception timing for the uplink transmission according to the duplex mode of the PCell may include.
  • control unit 2910 is based on a control channel reception timing and a PUSCH transmission timing that can be set differently according to each duplex mode from a terminal operating in different duplex modes required to perform the above-described embodiments of the present invention. It controls the overall operation of the base station according to receiving and processing the transmitted PUSCH.
  • the receiver 2930 receives uplink control information, data, and messages from the terminal through a corresponding channel.
  • the transmitter 2920 may transmit a PDCCH or an EPDCCH to a control channel including a UL grant to the terminal.
  • the downlink control information, data, and messages are transmitted through the corresponding channel.

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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 concerne un procédé pour définir la synchronisation d'un canal de commande pour les émissions de liaison montante d'un terminal lorsque les cellules sont configurées pour fonctionner dans des modes de duplexage différents, et un appareil associé, et plus particulièrement un procédé pour définir la synchronisation pour les émissions PUSCH d'après les chronogrammes d'émission/réception des informations d'ordonnancement pour les émissions de données de liaison montante et le PDCCH/EPDCCH reçu en fonctionnement combiné TDD-FDD et agrégation de porteuses, et un appareil pour la mise en œuvre du procédé. Plus précisément, la présente invention suggère un procédé et un appareil pour le traitement d'un canal de commande au moyen d'un terminal lorsqu'une PCell et une SCell sont configurées pour fonctionner dans des modes de duplexage différents, le procédé comprenant les étapes suivantes : ordonnancement d'auto-porteuse au niveau de la PCell comme de la SCell ; et envoi d'un PUSCH à la PCell comme à la SCell, basé sur le canal de commande reçu selon la synchronisation de réception du canal de commande pour les émissions de liaison montante dans les modes de duplexage de la PCell et de la SCell.
PCT/KR2014/008639 2013-09-27 2014-09-17 Procédé pour définir la synchronisation d'un canal de commande en fonctionnement combiné tdd-fdd et appareil associé WO2015046800A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201480053610.6A CN105580298B (zh) 2013-09-27 2014-09-17 在tdd-fdd联合运营中的控制信道时序设置方法及其装置
US15/024,899 US20160219543A1 (en) 2013-09-27 2014-09-17 Method for setting timing of control channel in tdd-fdd joint operation and apparatus therefor

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20130115725 2013-09-27
KR10-2013-0115725 2013-09-27
KR10-2014-0061203 2014-05-21
KR20140061203A KR20150035673A (ko) 2013-09-27 2014-05-21 Tdd-fdd 조인트 오퍼레이션에서의 제어채널 타이밍 설정 방법 및 그 장치

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