WO2015046807A1 - Tdd-fdd 조인트 오퍼레이션에서의 응답정보 전송채널 타이밍 설정 방법 및 그 장치 - Google Patents
Tdd-fdd 조인트 오퍼레이션에서의 응답정보 전송채널 타이밍 설정 방법 및 그 장치 Download PDFInfo
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- WO2015046807A1 WO2015046807A1 PCT/KR2014/008695 KR2014008695W WO2015046807A1 WO 2015046807 A1 WO2015046807 A1 WO 2015046807A1 KR 2014008695 W KR2014008695 W KR 2014008695W WO 2015046807 A1 WO2015046807 A1 WO 2015046807A1
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- scell
- pcell
- phich
- tdd
- pusch
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
- H04L5/0055—Physical resource allocation for ACK/NACK
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
- H04L5/1469—Two-way operation using the same type of signal, i.e. duplex using time-sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
Definitions
- the present invention relates to a timing setting method of a response information transmission channel for uplink transmission of a terminal configured with cells operating in different duplex modes and an apparatus therefor, and more particularly, to one or more cells operating in different duplex modes.
- a method for setting a timing for receiving a response signal and an apparatus for implementing the same is provided in a terminal performing communication through the present invention.
- 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.
- a plurality of cells configured in the terminal may be divided into primary cells (PCell) and one or more secondary cells (Secondary Cells, SCells) according to their functions.
- the PCell may provide a secure input, may be changed only through a handover procedure, and may transmit a control channel for uplink.
- One or more SCells may be configured in the form of a set of serving cells together with a PCell depending on UE capability.
- PHICH Physical Hybrid ARQ Indicator CHannel
- the PHICH timing setting is required for the UE to receive the PHICH for the uplink allocation of the SCell in which the PCell is carrier merged and the uplink data of the SCell.
- the present invention provides a method for processing a PHICH by a terminal configured with a PCell and a SCell operating in different duplex modes, wherein each of the PCell and the SCell is set to be self-carrier scheduled and the PUSCH is transmitted from the PCell or the SCell, respectively.
- Receiving control information for the UE and transmitting the PUSCH in each of the PCell or SCell based on the control information and the PHICH for the PUSCH transmitted based on the PHICH timing of the PCell or SCell according to the PUSCH transmission from each of the PCell or SCell It provides a method comprising the step of receiving.
- the present invention also provides a method for processing a PHICH in a terminal configured with a PCell operating in a TDD duplex mode and a SCell operating in an FDD duplex mode, and a step of being configured to cross-carrier scheduling for the SCell and a PUSCH transmitted from the PCell to the SCell.
- the present invention provides a method for processing a PHICH in a terminal configured with a PCell operating in FDD duplex mode and a SCell operating in TDD duplex mode, the step of being configured to cross-carrier scheduling for the SCell and PUSCH transmitted from the SCell from the PCell Receiving the control information for the transmission and transmitting the PUSCH in the SCell based on the control information and receiving the PHICH for the transmitted PUSCH based on the PHICH timing of the SCell in the PCell .
- the present invention provides a method for transmitting a PHICH to a terminal configured with a PCell and SCell operating in a different duplex mode, the base station, controlling each of the PCell and SCell to be self-carrier scheduling and in each of the PCell or SCell of the terminal Transmitting control information for PUSCH transmission and receiving a PUSCH transmitted in each of the PCell or SCell based on the control information, and for the PUSCH based on the PHICH timing of the PCell or SCell according to the PUSCH transmission to the PCell or SCell, respectively. It provides a method comprising the step of transmitting a PHICH.
- the present invention also provides a method for transmitting a PHICH to a terminal configured with a PCell operating in the TDD duplex mode and a SCell operating in the TDD duplex mode, and controlling the cross carrier scheduling for the SCell and transmitting the information from the SCell to the PCell. Transmitting control information for transmitting the PUSCH, receiving the PUSCH transmitted from the SCell based on the control information, and transmitting the PHICH for the PUSCH to the PCell based on the PHICH timing of the PCell. do.
- the present invention also provides a method for transmitting a PHICH to a terminal configured with a PCell operating in an FDD duplex mode and a SCell operating in a TDD duplex mode, and controlling cross-carrier scheduling for the SCell and transmitting the SCell to the PCell. Transmitting control information for transmitting the PUSCH, receiving the PUSCH transmitted from the SCell based on the control information, and transmitting the PHICH for the PUSCH to the PCell based on the PHICH timing of the SCell. do.
- the present invention is a terminal for processing a PHICH configured PCell and SCell operating in different duplex mode, the control information for PUSCH transmission from the control unit and the PCell or SCell configured to each of the PCell and SCell is self-carrier scheduling
- a transmitter transmitting unit transmitting a PUSCH in each of the PCell or the SCell based on the receiving unit and the control information, wherein the receiving unit is a PHICH for the PUSCH transmitted based on the PHICH timing of the PCell or SCell according to the PUSCH transmission from the PCell or the SCell, respectively. It provides a terminal device for receiving the.
- the present invention also provides a UE for processing a PHICH configured with a PCell operating in the TDD duplex mode and a SCell operating in the FDD duplex mode.
- the present invention is a terminal for processing PHICH configured PCell operating in FDD duplex mode and SCell operating in TDD duplex mode, PUSCH transmission from the control unit and PCell configured to cross-carrier scheduling for the SCell from the SCell
- the present invention is a base station for transmitting a PHICH to a terminal configured PCell and SCell operating in different duplex mode, the control unit for controlling the PCell and SCell each self-carrier scheduling and PUSCH transmission in each of the PCell or SCell of the terminal
- the control unit for controlling the PCell and SCell each self-carrier scheduling and PUSCH transmission in each of the PCell or SCell of the terminal
- a transmitter for transmitting the control information for the receiver and a receiver for receiving the PUSCH transmitted from each of the PCell or the SCell based on the control information, wherein the transmitter is the PCell or the SCell, respectively, based on the PHICH timing of the PCell or the SCell.
- the present invention is a base station for transmitting a PHICH to a terminal configured with a PCell operating in the TDD duplex mode and SCell operating in the FDD duplex mode, the control unit to control the cross-carrier scheduling for the SCell and PUSCH transmitted from the SCell to the PCell
- a base station including a transmitter for transmitting control information for transmission and a receiver for receiving a PUSCH in the SCell based on the control information, wherein the transmitter includes a transmitter for transmitting the PHICH for the PUSCH to the PCell based on the PHICH timing of the PCell.
- the present invention is a base station for transmitting a PHICH to a terminal configured with a PCell operating in FDD duplex mode and a SCell operating in TDD duplex mode, the control unit to control the cross-carrier scheduling for the SCell and PUSCH transmitted from the SCell 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 present invention has an effect of improving the transmission and reception reliability of the uplink and downlink control channel including the HARQ-ACK operation to improve the data transmission and reception reliability according to the carrier merge.
- 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 are diagrams exemplarily illustrating 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 a timing relationship of PDCCH / EPDCCH for uplink data transmission in a TDD PCell according to an embodiment of the present invention.
- 19 and 20 are diagrams exemplarily illustrating a timing relationship of PDCCH / EPDCCH when TDD UL-DL configuration 0 is used as a PCell according to another embodiment of the present invention.
- 21 is a diagram illustrating PHICH timing according to a UL-DL configuration in a TDD PCell according to another embodiment of the present invention.
- 22 and 23 are diagrams exemplarily illustrating a PHICH timing relationship when a PCell is set to TDD UL-DL configuration 0 according to another embodiment of the present invention.
- 24 is a diagram illustrating an example of a terminal operation according to another embodiment of the present invention.
- 25 is a diagram illustrating another example of a terminal operation according to another embodiment of the present invention.
- 26 is a diagram illustrating another example of a terminal operation according to another embodiment of the present invention.
- FIG. 27 is a diagram illustrating an example of an operation of a base station according to another embodiment of the present invention.
- FIG. 28 is a diagram illustrating another example of an operation of a base station according to another embodiment of the present invention.
- 29 is a diagram illustrating another example of an operation of a base station according to another embodiment of the present invention.
- FIG. 30 is a diagram illustrating a configuration of a terminal according to another embodiment of the present invention.
- 31 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 cell generally refers to a station for communicating 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 refers to a comprehensive meaning of 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, and 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 refers to 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 described below may mean PDCCH or EPDCCH, and may also be used to include both PDCCH and EPDCCH.
- the EPDCCH which is an embodiment of the present invention, may be applied to the portion described as the PDCCH, and the 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-layer 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
- the present invention relates to a control channel and a PUSCH transmission / reception timing and a hybrid automatic repeat request-acknowledgement (HARQ-ACK) timing.
- HARQ-ACK hybrid automatic repeat request-acknowledgement
- 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.
- 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 reset, 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 TDD UL under an existing TDD UL-DL configuration, and detects PDCCH / EPDCCH detected in a corresponding nth subframe ( This means that the PUSCH is transmitted in the n + k) th subframe.
- the PUSCH for the PDCCH / EPDCCH detected in the 0 th subframe in the TDD UL-DL configuration 0 may be transmitted in the fourth 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 (n + k_PHICH) -th DL subframe.
- 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.
- the present invention relates to PHICH timing for transmitting HARQ-ACK for UL transmission in consideration of different duplex modes of FDD and TDD joint operation and FDD and TDD carrier aggregation. A specific method and apparatus are proposed.
- 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.
- a PHICH for transmitting HARQ-ACK for UL transmission in case of considering a joint operation and carrier aggregation of FDD and TDD, which are different duplex modes according to each embodiment, is considered.
- a method of operating a terminal and a base station regarding timing is proposed.
- the present invention relates to a PHICH timing method for transmitting HARQ-ACK for UL transmission, which may vary according to a TDD-FDD joint operation and a duplex mode of a cell designated as PCell and SCell in CA.
- a PHICH timing method for transmitting HARQ-ACK for UL transmission which may vary according to a TDD-FDD joint operation and a duplex mode of a cell designated as PCell and SCell in CA.
- the timing of the PDCCH / EPDCCH for the TDD-FDD joint operation and the UL transmission in CA and the UE operation regarding the PHICH timing for transmitting the HARQ-ACK associated with the CA 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.
- the PHICH for the PUSCH transmitted in each of the PCell and the SCell is received according to the PHICH timing of the cell in which the PUSCH is transmitted. Can be. Accordingly, when each of the PCell and the SCell is self-carrier scheduled, the PHICH for the PUSCH transmitted in the PCell and the SCell may be transmitted and received based on the PHICH timing of each of the PCell and the SCell.
- 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-ACK timing for UL transmitted in the existing FDD SCell transmits UL in the nth subframe by the UL grant received in the existing (n-4) th subframe, and (n + 4) th.
- the PHICH timing of the HARQ-ACK transmitted 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 UL grant for transmitting scheduling information of PDCCH / EPDCCH for UL transmission for the corresponding FDD SCell and PHICH for transmitting HARQ-ACK for the UL transmission There is a need for a method for improving transmission timing.
- duplex mode of the PCell is TDD and the duplex mode of the SCell is FDD.
- First embodiment A method of matching timing of HARQ-ACK with respect to UL transmitted to an FDD SCell according to timing of a TDD PCell.
- 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 + 4) th 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.
- 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 According to the UL-DL configuration of the TDD PCell, the UL is transmitted from the FDD SCell. How to newly set the PDCCH / EPDCCH and PHICH timing for.
- 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 set to the PHICH timing, which is the timing of receiving the PDCCH / EPDCCH for the UL transmitted from the FDD SCell and / or the HARQ-ACK for the UL transmission.
- PHICH timing is the timing of receiving the PDCCH / EPDCCH for the UL transmitted from the FDD SCell and / or the HARQ-ACK for the UL transmission.
- 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 are diagrams exemplarily illustrating 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 newly defining a transmission timing of PDCCH / EPDCCH for additional UL transmission for UL of a corresponding FDD SCell and HARQ-ACK PHICH timing for UL. .
- the transmission timing of the PDCCH / EPDCCH in the TDD PCell for performing transmission in the nth UL subframe of the FDD SCell is at least (n-4) th earlier.
- the TDD PCell subframe of PSCH it is possible to configure transmission of PUSCH indicated by PDCCH / EPDCCH detection.
- the PHICH transmitting HARQ-ACK for the PUSCH transmitted in the nth UL subframe may be configured to be transmitted in the at least (n + 4) th TDD PCell DL subframe, even if the fastest PHICH is transmitted. That is, 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.
- FIG. 18 is a diagram illustrating 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.
- PUSCH transmission timing after PDCCH / EPDCCH detection is performed in a TDD PCell subframe may be performed as shown in the table of FIG. 18. 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).
- 5 may be configured by adding a value of k to the 0 th subframe of the TDD UL-DL configuration for 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.
- each 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 FIG. 18 may be separately defined.
- the definition of the PDCCH / EPDCCH timing for the PUSCH transmitted in the FDD SCell UL subframe described above with reference to FIG. 18 is to equally distribute the PDCCH / EPDCCH for the FDD SCell PUSCH on the TDD DL subframes.
- PDCCH / EPDCCH timing for the PUSCH transmitted in the FDD SCell UL subframe described above with reference to FIG. 18 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.
- 19 and 20 are diagrams exemplarily illustrating a timing relationship of PDCCH / EPDCCH when TDD UL-DL configuration 0 is used as a PCell according to another embodiment of the present invention.
- the PDCCH / EPDCCH for the UL PUSCH of the FDD SCell may be concentrated and allocated to a specific TDD DL subframe.
- the k value of the 0 th subframe may be 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 an UL subframe 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.
- the PHICH timing for the FDD SCell PUSCH transmission may be each embodiment as follows. This means that when the PHICH transmission for the UL transmission in the FDD SCell is performed in the TDD PCell, the PUSCH transmission of the nth subframe in the FDD SCell is performed. This means that the UE receives the PHICH for the FDD SCell PUSCH in the corresponding (n + k_PHICH) th subframe in the TDD PCell.
- 21 is a diagram illustrating PHICH timing according to a UL-DL configuration in a TDD PCell according to another embodiment of the present invention.
- a PHICH including HARQ-ACK for a PUSCH transmitted in UL subframe 0 of the FDD SCell may indicate a fifth DL subframe. Can be received through.
- the PHICH including the HARQ-ACK for the PUSCH transmitted in the UL subframe 2 of the FDD SCell may be received through a special subframe, which is subframe 6.
- the PHICH timing according to the second embodiment of the present invention may receive additional PHICH for PUSCH transmission through all UL subframes of the FDD SCell by setting additional HARQ-ACK timing in the UL-DL configuration of the existing TDD Cell. .
- the additional HARQ-ACK timing may be set such that PHICH for the FDD SCell PUSCH is equally distributed on the TDD DL subframes.
- timing information of a PUSCH and a PHICH for an FDD SCell exemplarily shows timing information of a PUSCH and a PHICH for an FDD SCell according to each TDD UL-DL configuration. Accordingly, timing information of the PUSCH and the PHICH for the FDD SCell may be independent according to each TDD UL-DL configuration, and seven combinations are shown in one table for convenience of description, but may be separately defined. That is, timing information of the PUSCH and the PHICH for the FDD SCell according to the TDD UL-DL configuration of FIG. 21 may be separately defined.
- 22 and 23 are diagrams exemplarily illustrating a PHICH timing relationship when a PCell is set to TDD UL-DL configuration 0 according to another embodiment of the present invention.
- the PHICH may be configured to be allocated to a specific TDD DL subframe according to the PHICH timing for the FDD SCell PUSCH according to the second embodiment of the present invention.
- FIG. 22 is a diagram illustrating a PHICH timing relationship when a PCell is set to TDD UL-DL configuration 0 according to another embodiment of the present invention.
- timing may be set to collect and allocate a TDD DL subframe in which a PHICH for a PUSCH of an FDD SCell is received.
- HARQ-ACK timing is added for uplink signals transmitted in UL subframes 0, 1, 5, and 6 of the FDD SCell. Can be set to This is because subframes 0, 1, 5, and 6 are configured as DL or special subframes in the existing TDD UL-DL configuration 0.
- HARQ-ACK timing for uplink signals transmitted in UL subframes 0, 1, 5, and 6 of the FDD SCell is additionally set, and a specific TDD PCell is used. It can be allocated intensively to the DL subframe of. That is, the PHICH for the PUSCH transmitted in UL subframes 0 and 1 of the FDD SCell may be configured to be received through DL subframe 5 of the TDD PCell.
- FIG. 23 is a diagram illustrating another example of the PHICH timing when the PCell is set to TDD UL-DL configuration 0 according to another embodiment of the present invention.
- the PHICH timing for some subframes among the UL subframes of the FDD SCell may be set to be received in the 6th special subframe of the TDD PCell.
- the PHICH for the PUSCH transmitted in UL subframes 0 and 1 of the FDD SCell may be received in the special subframe 6 of the TDD PCell according to (n + k_PHICH).
- TDD UL-DL configuration 0 has been described above as an example, but other TDD UL-DL configurations may be set according to the same principle.
- the PDCCH / EPDCCH The UL index and subframe index information for transmitting the corresponding PUSCH may be included.
- the PHICH resources transmitted in the same subframe may be distinguished by the UL index and the subframe index information. Alternatively, it may be configured to include an additional parameter that enables the classification of PHICH resources.
- 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 receive the transmitted PHICH based on the PHICH timing according to the duplex mode of the PCell and the SCell.
- the PHICH for the PUSCH transmitted in the TDD SCell may be set according to each embodiment as follows in order to reduce waste of subframes and to efficiently receive PHICH.
- 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.
- all subframes are configured as DL subframes in one radio frame, and cross-carrier scheduling is performed.
- the FDD PCell performing the UL grant for the TDD SCell is transmitted.
- the PHICH for transmitting the HARQ-ACK for the uplink transmission transmitted in the TDD SCell is received in the FDD PCell.
- the PHICH timing according to the PUSCH of the UL transmitted from the TDD SCell may be set so that the PHICH timing of the TDD UL used during non-cross carrier scheduling is applied. 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 configured to operate in common with the PHICH timing of the same UE.
- 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 PHICH timing for uplink transmission transmitted to the TDD SCell may apply the PHICH timing of the FDD PCell.
- the DL subframe is configured in every radio frame in the FDD SCell. Therefore, even if the PHICH timing for transmitting HARQ-ACK for the uplink signal transmitted in the UL subframe of the TDD SCell is set equal to the PHICH timing of the FDD PCell, no problem occurs.
- the terminal receiving the grant is UL at the TDD SCell in the n subframe.
- 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 TDD-FDD joint operation and CA operation, and the CA may be used through two or more component carriers in UL and CA in UL. Not applicable, that is, even when using one component carrier (component carrier) are all applicable.
- 24 is a diagram illustrating an example of a terminal operation according to another embodiment of the present invention.
- the PCell and the SCell are set to be self-carrier scheduled, and the PUSCH from the PCell and the SCell, respectively.
- 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 self-carrier scheduled (S2410), and control information for PUSCH transmission from the PCell and the Scell, respectively It may be received (S2420). That is, the terminal may receive control information from the PCell to perform the PUSCH transmission in the subframe of the PCell, and likewise, the terminal may receive control information from the SCell to perform the PUSCH transmission in the subframe of the SCell.
- the UE may transmit the PUSCH in each of the PCell and the SCell based on the control information for the PUSCH transmission (S2430). For example, the PUSCH may be transmitted based on the control information received from the PCell, and the PUSCH may be transmitted from the SCell based on the control information received from the SCell.
- the UE may receive a PHICH including HARQ-ACK information on the transmitted PUSCH according to the PHICH timing according to the PUSCH transmission set from each of the PCell and the SCell (S2440).
- the PHICH for the PUSCH transmitted from the PCell may receive the transmitted PHICH based on the PHICH timing of the PCell.
- the PHICH for the PUSCH transmitted from the SCell may receive the transmitted PHICH based on the PHICH timing of the SCell.
- the PHICH for each PUSCH transmitted in the PCell and the SCell operating in different duplex modes configured in the terminal may be transmitted based on the PHICH timing set according to the duplex mode of each cell.
- the terminal may receive the transmitted PHICH based on the PHICH timing set according to the duplex mode of the corresponding cell.
- 25 is a diagram illustrating another example of a terminal operation according to another embodiment of the present invention.
- the SCell is configured to be cross-carrier scheduled for the SCell and from the PCell to the SCell.
- Receiving control information for PUSCH transmission transmitted from the SCell transmitting the PUSCH in the SCell based on the control information, and receiving the PHICH for the PUSCH transmitted based on the PHICH timing of the PCell in the PCell. Can be.
- a terminal configured with a PCell operating in the TDD duplex mode and an SCell operating in the FDD duplex mode may be configured to be cross-carrier scheduled for the SCell (S2510), and transmit the PUSCH to be transmitted from the scheduling cell to the SCell.
- control information regarding the terminal may be received.
- the PUSCH transmission of the SCell may be controlled based on the control information transmitted to the PCell.
- PUSCH transmission timing and PUSCH resource allocation of the PCell or the SCell may be performed based on UL grant information included in the PDCCH / EPDCCH transmitted to the PCell.
- the UE may transmit the PUSCH in the SCell based on control information (eg, SCell UL grant) received from the scheduling cell (S2530).
- control information eg, SCell UL grant
- the SCell may transmit the PUSCH based on control information received from the PCell, and since the SCell is configured in the FDD duplex mode, the PUSCH may be transmitted through the UL subframe.
- the UE may receive a PHICH for the PUSCH transmitted from the SCell based on the PHICH timing of the scheduling cell from the scheduling cell (S2540).
- the terminal may receive the PHICH for the PUSCH transmitted from the SCell in the PCell.
- the PHICH for the PUSCH transmitted from the SCell may be received at the PHICH timing determined according to the TDD UL-DL configuration of the PCell. That is, the terminal may receive the PHICH transmitted by the base station based on the PHICH timing of the PCell.
- the PHICH for the PUSCH transmitted to the SCell may be received in the downlink subframe of the PCell to which the HARQ-ACK timing of the TDD PCell is applied.
- the PHICH timing for the PUSCH transmitted in the UL subframe of the FDD SCell may be applied differently according to the PHICH timing applied to the UL-DL configuration of the TDD PCell. In this case, however, there may be a problem in that PHICH timing for the UL subframe of a specific FDD SCell cannot be set.
- the PHICH timing for the UL subframe of the specific FDD SCell having the above-described problem may be further defined. That is, when the PCell is set to TDD and the SCell is set to FDD, the PHICH may be received in a downlink subframe of the PCell to which additional HARQ-ACK timing is applied to the HARQ-ACK timing of the TDD PCell.
- the additional HARQ-ACK timing may be configured to equally distribute HARQ-ACK timing for uplink signals transmitted in the uplink subframe of the SCell mapped to the downlink subframe of the TDD PCell to the downlink subframe on the TDD PCell. , May be configured to concentrate on some subframes of the downlink subframe of the PCell. For example, it may be set to be equally distributed as shown in FIG. 18, or set to be concentrated in a specific subframe as shown in FIGS. 19 and 20.
- the terminal in a method in which a UE configured with a PCell operating in the FDD duplex mode and an SCell operating in the TDD duplex mode according to the present invention processes a PHICH, the terminal is configured to be cross-carrier scheduled for the SCell.
- Receiving control information for PUSCH transmission transmitted from the SCell from the PCell transmitting the PUSCH from the SCell based on the control information, and receiving the PHICH for the transmitted PUSCH based on the PHICH timing of the SCell from the PCell. It may include a step.
- a terminal configured with a PCell operating in the FDD duplex mode and a SCell operating in the TDD duplex mode may be configured to be cross-carrier scheduled for the SCell (S2610), and control of PUSCH transmission to be transmitted from the scheduling cell to the SCell Information may be received (S2620).
- the PUSCH transmission of the SCell may be controlled based on the control information transmitted to the PCell.
- PUSCH transmission timing and PUSCH resource allocation of the PCell or the SCell may be performed based on UL grant information included in the PDCCH / EPDCCH transmitted to the PCell.
- the UE may transmit the PUSCH in the SCell based on control information (eg, SCell UL grant) received from the scheduling cell (S2630).
- control information eg, SCell UL grant
- the SCell may transmit the PUSCH based on the control information received from the PCell, and since the SCell is configured in the TDD duplex mode, the PUSCH may be transmitted according to the corresponding TDD UL-DL configuration.
- the UE may receive a PHICH for the PUSCH transmitted from the SCell based on the PHICH timing of the cell configured to be scheduled from the scheduling cell (S2640). For example, the UE may receive the PHICH for the PUSCH transmitted from the SCell at the PHICH timing according to the TDD UL-DL configuration of the SCell. That is, the base station may receive the PHICH transmitted based on the TDD PHICH timing of the SCell.
- the PHICH may be received in a downlink subframe of the PCell to which the HARQ-ACK timing of the TDD SCell is applied.
- the PHICH for the uplink signal transmitted in subframe n may be received in the downlink subframe (n + 4) of the PCell. It may be. That is, the PHICH timing of the FDD PCell may be equally applied.
- FIG. 27 is a diagram illustrating an example of an operation of a base station according to another embodiment of the present invention.
- the base station In a method for transmitting a PHICH to 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 and SCell to self-carrier scheduling and the PCell or Transmitting control information for PUSCH transmission in each of the SCells, receiving a PUSCH transmitted in each of the PCell or SCell, and transmitting a PUSCH to the PCell or SCell based on the PHICH timing of the PCell or SCell according to the PUSCH transmission to each of the PCells or SCells, respectively. And transmitting the PHICH.
- a base station performing communication with a terminal configured with a PCell and a SCell operating in different duplex modes may control the PCell or the SCell to be self-carrier scheduled, and in step S2710, the PCSCH and the SCell transmit the PUSCH.
- Control information for transmitting may be transmitted (S2720).
- the control information of the PCell or the SCell may be transmitted from the corresponding PCell or the SCell to control self scheduling.
- the base station may receive the PUSCH transmitted in the PCell or SCell based on the control information for PUSCH transmission in each of the PCell and SCell from the terminal (S2730).
- the base station may transmit a PHICH including HARQ-ACK information according to the PUSCH transmission set in each of the PCell and the SCell for the PUSCH received by the PCell or the SCell (S2740).
- the transmission timing of the PHICH depends on the timing set according to the duplex mode of each of the PCell or the SCell in which the PUSCH is received.
- the PUSCH received by the PCell transmits the PHICH according to the PHICH timing according to the FDD.
- the PUSCH received by the SCell may transmit the PHICH according to the PHICH timing according to the TDD.
- the PHICH may be transmitted at the PHICH timing according to the duplex mode of the cell in which the PUSCH is received.
- FIG. 28 is a diagram illustrating another example of an operation of a base station according to another embodiment of the present invention.
- the base station In a method for transmitting a PHICH to a terminal configured with a PCell operating in the 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 cross carrier scheduling for the SCell and PCell Transmitting control information for the PUSCH transmission transmitted from the SCell, receiving the PUSCH transmitted from the SCell based on the control information, and transmitting the PHICH for the PUSCH to the PCell based on the PHICH timing of the PCell. It may include.
- a base station communicating with a terminal configured with a PCell and a SCell operating in different duplex modes may control the SCell to be cross-carrier scheduled from a scheduling cell (S2810) and to transmit from the scheduling cell to the SCell.
- the control information for the PUSCH transmission may be transmitted (S2820).
- the UE may control cross carrier scheduling by transmitting PDCCH / EPDCCH including UL grant information of the SCell as control information transmitted to the PCell.
- the control information may be transmitted in a DL subframe of the PCell.
- the base station may receive the PUSCH transmitted from the SCell based on the control information transmitted from the scheduling cell from the terminal (S2830). For example, a PUSCH transmitted in the SCell may be received based on control information transmitted from the PCell, and since the SCell is configured in the FDD duplex mode, the PUSCH may be received through the UL subframe.
- the base station may transmit a PHICH for the PUSCH from the scheduling cell based on the PHICH timing of the scheduling cell (S2840).
- the PHICH including HARQ-ACK information on the PUSCH received by the SCell may be transmitted from the PCell to the UE based on the PHICH timing of the PCell.
- the base station When the base station transmits the PHICH, it may be applied differently according to the duplex mode of the above-described SCell. Specifically, PHICH timing that can be applied according to each of the above-described embodiments will be described.
- the PHICH for the PUSCH transmitted to the SCell may be transmitted to the PCell by applying the PHICH timing of the TDD PCell. That is, the PHICH for the PUSCH received in the UL subframe of the FDD SCell may be differently applied and transmitted according to the PHICH timing applied to the UL-DL configuration of the TDD PCell. In this case, however, there may be a problem in that PHICH timing for the UL subframe of a specific FDD SCell cannot be set.
- the PHICH timing for the UL subframe of the specific FDD SCell having the above-described problem may be further defined. That is, when the PCell is set to TDD and the SCell is set to FDD, the PHICH may be transmitted in a downlink subframe of the PCell to which the additional PHICH timing is applied to the PHICH timing of the TDD PCell.
- the additional HARQ-ACK timing may be set such that the HARQ-ACK timing for the uplink signal received in the uplink subframe of the SCell mapped to the downlink subframe of the TDD PCell is evenly distributed to the downlink subframe on the TDD PCell. , May be configured to concentrate on some subframes of the downlink subframes of the PCell. For example, it may be set to be equally distributed as shown in FIG. 18, or set to be concentrated in a specific subframe as shown in FIGS. 19 and 20.
- 29 is a diagram illustrating another example of an operation of a base station according to another embodiment of the present invention.
- the base station In a method of transmitting a PHICH to a terminal configured with a PCell operating in FDD duplex mode and a SCell operating in TDD duplex mode, the base station according to another embodiment of the present invention, controlling the cross carrier scheduling for the SCell and PCell Transmitting control information for PUSCH transmission transmitted from the SCell, receiving the PUSCH transmitted from the SCell based on the control information, and transmitting the PHICH for the PUSCH to the PCell based on the PHICH timing of the SCell. It may include.
- a base station performing communication with a terminal configured with a PCell and a SCell operating in different duplex modes may control the SCell to be cross-carrier scheduled from a scheduling cell (S2910) and to transmit from the scheduling cell to the SCell.
- the control information for the PUSCH transmission may be transmitted (S2920).
- the UE may control cross carrier scheduling by transmitting PDCCH / EPDCCH including UL grant information of the SCell as control information transmitted to the PCell.
- the control information may be transmitted in a DL subframe of the PCell.
- the base station may receive the PUSCH transmitted from the SCell based on the control information transmitted from the scheduling cell from the terminal (S2930). For example, based on the control information transmitted from the PCell can receive the PUSCH transmitted in the SCell, since the SCell is configured in the TDD duplex mode can receive the PUSCH from the UL subframe according to the TDD UL-DL configuration. .
- the base station may transmit the PHICH for the PUSCH based on the PHICH timing of the cell configured to be scheduled from the scheduling cell (S2940).
- the PHICH including HARQ-ACK information on the PUSCH received by the SCell may be transmitted from the PCell to the UE based on the PHICH timing of the SCell.
- the PHICH may be transmitted in a downlink subframe of the PCell to which the PHICH timing of the TDD SCell is applied.
- the PHICH for the PUSCH received in the subframe n may be transmitted in the downlink subframe (n + 4) of the PCell. That is, the PHICH timing of the FDD PCell may be equally applied.
- the PCell / SCell between the terminal and the base station.
- the ambiguity between the UE and the BS regarding the behavior of the UE operating according to the configuration of the BS and the configuration of the BS can be solved.
- 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. 30 is a diagram illustrating a configuration of a terminal according to another embodiment of the present invention.
- the terminal 3000 includes a controller 3010, a transmitter 3020, and a receiver 3030.
- the PCell and the SCell, respectively, from the control unit 3010 and the PCell or SCell is set to be self-carrier scheduling
- the PHICH for the PUSCH transmitted based on the PHICH timing may be further received.
- a PUSCH transmission transmitted from the PCell and the control unit 3010 configured to cross-carrier scheduling for the SCell is performed.
- a PUSCH transmission transmitted from the control cell 3010 and the PCell transmitted from the PCell to the SCell is configured.
- the receiver 3030 may receive a PHICH transmitted at a timing set according to the above-described embodiments.
- the transmitter 3020 and the receiver 3030 are used to transmit and receive signals, messages, and data necessary for carrying out the above-described present invention.
- 31 is a diagram showing the configuration of a base station according to another embodiment of the present invention.
- a base station 3100 includes a receiver 3130, a controller 3110, and a transmitter 3120.
- the control unit 3110 and the PCell of the terminal to control each of the PCell and SCell is self-carrier scheduling Or a transmitter 3120 for transmitting control information for PUSCH transmission in each of the SCells, and a receiver 3130 for receiving a PUSCH transmitted in each of the PCell or SCell based on the control information, wherein the transmitter 3120 is a PCell.
- the PHICH for the PUSCH may be further transmitted to the SCell based on the PHICH timing of the PCell or the SCell.
- the control unit 3110 for controlling cross carrier scheduling for the SCell and the PCell are transmitted from the SCell.
- the PHICH can be further transmitted.
- the control unit 3110 for controlling the cross carrier scheduling for the SCell and the PCell are transmitted from the SCell.
- the PHICH may be further transmitted.
- the transmitter 3120 may transmit the PHICH in a downlink subframe of the Pcell to which the HARQ-ACK timing of the TDD Pcell is applied.
- the PHICH timing for the PUSCH received in the UL subframe of the FDD SCell may be applied differently according to the UL-DL configuration of the TDD PCell. In this case, however, there may be a problem in that PHICH timing for the UL subframe of a specific FDD SCell cannot be set.
- the controller 3110 may additionally define the PHICH timing for the UL subframe of the specific FDD SCell in which the aforementioned problem occurs as in the second embodiment.
- the transmitter 3120 may transmit a PHICH in a downlink subframe of the Pcell to which an additional HARQ-ACK timing is applied to the HARQ-ACK timing of the TDD Pcell.
- the controller 3110 equally distributes HARQ-ACK timing for the uplink signal received in the uplink subframe of the Scell mapped to the downlink subframe of the TDD Pcell. Or, it may be set to concentrate on some subframes of the downlink subframe of the Pcell. For example, it may be set to be equally distributed as shown in FIG. 18, or set to be concentrated in a specific subframe as shown in FIGS. 19 and 20.
- the transmitter 3120 may transmit the PHICH in the downlink subframe of the Pcell to which the HARQ-ACK timing of the TDD Scell is applied.
- the transmitter 3120 sets the PHICH for the uplink signal received in subframe n to the downlink subframe (n + 4) of the Pcell. You can also send from. That is, the PHICH timing of the FDD PCell may be equally applied.
- the receiver 3130 receives uplink control information, data, and messages from the terminal through a corresponding channel.
- the transmitter 3120 transmits downlink control information, data, and a message to a terminal through a corresponding channel.
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Abstract
Description
Claims (16)
- 서로 다른 듀플렉스 모드로 동작하는 PCell 및 SCell이 구성된 단말이 PHICH를 처리하는 방법에 있어서,상기 PCell 및 상기 SCell 각각이 셀프 캐리어 스케줄링 되도록 설정되는 단계;상기 PCell 또는 상기 SCell로부터 각각 PUSCH 전송을 위한 제어정보를 수신하는 단계;상기 제어정보에 기초하여 상기 PCell 또는 상기 SCell 각각에서 상기 PUSCH를 전송하는 단계; 및상기 PCell 또는 상기 SCell 각각으로부터 상기 PUSCH 전송에 따른 상기 PCell 또는 상기 SCell의 PHICH 타이밍에 기초하여 전송된 상기 PUSCH에 대한 PHICH를 수신하는 단계를 포함하는 방법.
- 제 1항에 있어서,상기 PCell의 듀플렉스 모드는 TDD로 설정되고, 상기 SCell의 듀플렉스 모드는 FDD로 설정되는 방법.
- 제 1항에 있어서,상기 PCell의 듀플렉스 모드는 FDD로 설정되고, 상기 SCell의 듀플렉스 모드는 TDD로 설정되는 방법.
- FDD 듀플렉스 모드로 동작하는 PCell 및 TDD 듀플렉스 모드로 동작하는 SCell이 구성된 단말이 PHICH를 처리하는 방법에 있어서,상기 SCell에 대해서 크로스 캐리어 스케줄링 되도록 설정되는 단계;상기 PCell로부터 상기 SCell에서 전송되는 PUSCH 전송을 위한 제어정보를 수신하는 단계;상기 제어정보에 기초하여 상기 SCell에서 상기 PUSCH를 전송하는 단계; 및상기 PCell에서 상기 SCell의 PHICH 타이밍에 기초하여 전송된 상기 PUSCH에 대한 PHICH를 수신하는 단계를 포함하는 방법.
- 기지국이 서로 다른 듀플렉스 모드로 동작하는 PCell 및 SCell이 구성된 단말로 PHICH를 전송하는 방법에 있어서,상기 PCell 및 상기 SCell 각각이 셀프 캐리어 스케줄링 되도록 제어하는 단계;상기 단말의 상기 PCell 또는 상기 SCell 각각에서의 PUSCH 전송을 위한 제어정보를 전송하는 단계;상기 제어정보에 기초하여 상기 PCell 또는 상기 SCell 각각에서 전송된 상기 PUSCH를 수신하는 단계; 및상기 PCell 또는 상기 SCell 각각으로 상기 PUSCH 전송에 따른 상기 PCell 또는 상기 SCell의 PHICH 타이밍에 기초하여 상기 PUSCH에 대한 PHICH를 전송하는 단계를 포함하는 방법.
- 제 5항에 있어서,상기 PCell의 듀플렉스 모드는 TDD로 설정되고, 상기 SCell의 듀플렉스 모드는 FDD로 설정되는 방법.
- 제 5항에 있어서,상기 PCell의 듀플렉스 모드는 FDD로 설정되고, 상기 SCell의 듀플렉스 모드는 TDD로 설정되는 방법.
- 기지국이 FDD 듀플렉스 모드로 동작하는 PCell 및 TDD 듀플렉스 모드로 동작하는 SCell이 구성된 단말로 PHICH를 전송하는 방법에 있어서,상기 SCell에 대해서 크로스 캐리어 스케줄링 되도록 제어하는 단계;상기 PCell로 상기 SCell에서 전송되는 PUSCH 전송을 위한 제어정보를 전송하는 단계;상기 제어정보에 기초하여 상기 SCell에서 전송된 상기 PUSCH를 수신하는 단계; 및상기 PCell로 상기 SCell의 PHICH 타이밍에 기초하여 상기 PUSCH에 대한 PHICH를 전송하는 단계를 포함하는 방법.
- 서로 다른 듀플렉스 모드로 동작하는 PCell 및 SCell이 구성된 PHICH를 처리하는 단말에 있어서,상기 PCell 및 상기 SCell 각각이 셀프 캐리어 스케줄링 되도록 설정되는 제어부;상기 PCell 또는 상기 SCell로부터 각각 PUSCH 전송을 위한 제어정보를 수신하는 수신부; 및상기 제어정보에 기초하여 상기 PCell 또는 상기 SCell 각각에서 상기 PUSCH를 전송하는 송신부를 포함하되,상기 수신부는 상기 PCell 또는 상기 SCell 각각으로부터 상기 PUSCH 전송에 따른 상기 PCell 또는 상기 SCell의 PHICH 타이밍에 기초하여 전송된 상기 PUSCH에 대한 PHICH를 수신하는 단말.
- 제 9항에 있어서,상기 PCell의 듀플렉스 모드는 TDD로 설정되고, 상기 SCell의 듀플렉스 모드는 FDD로 설정되는 단말.
- 제 9항에 있어서,상기 PCell의 듀플렉스 모드는 FDD로 설정되고, 상기 SCell의 듀플렉스 모드는 TDD로 설정되는 단말.
- FDD 듀플렉스 모드로 동작하는 PCell 및 TDD 듀플렉스 모드로 동작하는 SCell이 구성된 PHICH를 처리하는 단말에 있어서,상기 SCell에 대해서 크로스 캐리어 스케줄링 되도록 설정되는 제어부;상기 PCell로부터 상기 SCell에서 전송되는 PUSCH 전송을 위한 제어정보를 수신하는 수신부; 및상기 제어정보에 기초하여 상기 SCell에서 상기 PUSCH를 전송하는 송신부를 포함하되,상기 수신부는 상기 PCell에서 상기 SCell의 PHICH 타이밍에 기초하여 전송된 상기 PUSCH에 대한 PHICH를 수신하는 단말.
- 서로 다른 듀플렉스 모드로 동작하는 PCell 및 SCell이 구성된 단말로 PHICH를 전송하는 기지국에 있어서,상기 PCell 또는 상기 SCell 각각이 셀프 캐리어 스케줄링 되도록 제어하는 제어부;상기 단말의 상기 PCell 또는 상기 SCell 각각에서의 PUSCH 전송을 위한 제어정보를 전송하는 송신부; 및상기 제어정보에 기초하여 상기 PCell 또는 상기 SCell 각각에서 전송된 상기 PUSCH를 수신하는 수신부를 포함하되,상기 송신부는 상기 PCell 또는 상기 SCell 각각으로 상기 PCell 또는 상기 SCell의 PHICH 타이밍에 기초하여 상기 PUSCH에 대한 PHICH를 전송하는 기지국.
- 제 13항에 있어서,상기 PCell의 듀플렉스 모드는 TDD로 설정되고, 상기 SCell의 듀플렉스 모드는 FDD로 설정되는 기지국.
- 제 13항에 있어서,상기 PCell의 듀플렉스 모드는 FDD로 설정되고, 상기 SCell의 듀플렉스 모드는 TDD로 설정되는 기지국.
- FDD 듀플렉스 모드로 동작하는 PCell 및 TDD 듀플렉스 모드로 동작하는 SCell이 구성된 단말로 PHICH를 전송하는 기지국에 있어서,상기 SCell에 대해서 크로스 캐리어 스케줄링되도록 제어하는 제어부;상기 PCell로 상기 SCell에서 전송되는 PUSCH 전송을 위한 제어정보를 전송하는 송신부; 및상기 제어정보에 기초하여 상기 SCell에서 전송된 상기 PUSCH를 수신하는 수신부를 포함하되,상기 송신부는 상기 PCell로 상기 SCell의 PHICH 타이밍에 기초하여 상기 PUSCH에 대한 PHICH를 전송하는 기지국.
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US15/025,001 US9871612B2 (en) | 2013-09-27 | 2014-09-18 | Method for setting timing of response information transmission channel in TDD-FDD joint operation and apparatus therefor |
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KR20140061209A KR20150035674A (ko) | 2013-09-27 | 2014-05-21 | Tdd-fdd 조인트 오퍼레이션에서의 응답정보 전송채널 타이밍 설정 방법 및 그 장치 |
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RESEARCH IN MOTION: "Design of HARQ and Scheduling Timing Linkage to Support Inter-band CA with Different TDD Configurations", 3GPP TSG RAN WG1 MEETING #68,RL-120336, 6 February 2012 (2012-02-06), DRESDEN, GERMANY * |
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