WO2015046831A1 - Procédé d'attribution de ressources de canal de commande en liaison descendante d'un terminal et appareil associé - Google Patents

Procédé d'attribution de ressources de canal de commande en liaison descendante d'un terminal et appareil associé Download PDF

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Publication number
WO2015046831A1
WO2015046831A1 PCT/KR2014/008765 KR2014008765W WO2015046831A1 WO 2015046831 A1 WO2015046831 A1 WO 2015046831A1 KR 2014008765 W KR2014008765 W KR 2014008765W WO 2015046831 A1 WO2015046831 A1 WO 2015046831A1
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Prior art keywords
information
resource
control channel
downlink
allocated
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PCT/KR2014/008765
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English (en)
Korean (ko)
Inventor
박규진
최우진
Original Assignee
주식회사 케이티
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Priority claimed from KR1020140057938A external-priority patent/KR101904572B1/ko
Application filed by 주식회사 케이티 filed Critical 주식회사 케이티
Priority to US15/025,262 priority Critical patent/US10181931B2/en
Priority to CN201480053321.6A priority patent/CN105594139B/zh
Publication of WO2015046831A1 publication Critical patent/WO2015046831A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems

Definitions

  • the present invention proposes a method and apparatus for allocating an uplink control channel for uplink hybrid automatic repeat request (HARQ) ACK / NACK feedback of a machine type communication (MTC) terminal in a wireless communication system.
  • HARQ uplink hybrid automatic repeat request
  • MTC machine type communication
  • Machine type communication (hereinafter referred to as "MTC" communication) is a form of data communication, in which one or more entities represent machine or machine communication that does not necessarily require human interaction. . MTC communication that does not require human interaction refers to all communication methods in which communication is performed without human intervention in the communication process.
  • the MTC terminal may be installed in a place where the radio environment is worse than that of the general terminal.
  • it may be necessary to repeatedly transmit control information and / or data of each physical channel transmitted in one subframe unit in a plurality of subframes.
  • a resource of an uplink control channel through which response information of downlink data is transmitted may be determined as a function of a resource of a downlink control channel for scheduling downlink data.
  • an uncertainty may occur in the method of determining the resource of the uplink control channel for the MTC terminal, There is a possibility that resources of an uplink control channel and resources of an uplink control channel for a general terminal collide.
  • An object of the present invention is to provide a method and apparatus for allocating an uplink control channel of an MTC terminal to overcome the above-mentioned problem.
  • a method of transmitting response information of downlink data of a machine type communication (MTC) terminal includes information of a resource to which an uplink control channel for transmitting response information is allocated, and an uplink control channel are allocated.
  • Receiving configuration information including at least one of offset information of a resource; Receiving downlink control information for scheduling downlink data; Receiving downlink data; And the uplink control determined based on at least one of information of a resource of a downlink control channel for scheduling downlink data, information of a resource to which an uplink control channel is allocated, and offset information of a resource to which an uplink control channel is allocated. It provides a method comprising the step of transmitting the response information of the downlink data using the resources of the channel.
  • Another embodiment of the present invention is a resource setting method of response information of downlink data for a machine type communication (MTC) terminal of a base station, and information of a resource to which an uplink control channel to which response information is transmitted is allocated, and an uplink Transmitting configuration information including at least one of offset information of a resource to which a control channel is allocated; Transmitting downlink control information for scheduling downlink data; And transmitting downlink data, wherein a resource of an uplink control channel through which response information of the downlink data is transmitted is allocated to information of a resource of a downlink control channel for scheduling downlink data and an uplink control channel It provides a method, characterized in that determined based on at least one of the information of the allocated resources, and the offset information of the allocated resource control channel.
  • MTC machine type communication
  • Another embodiment of the present invention is a terminal for transmitting response information of downlink data to a base station, the information of the resource allocated to the uplink control channel to which the response information is transmitted, and the offset information of the resource allocated to the uplink control channel
  • a receiving unit for receiving configuration information including at least one of the following, receiving downlink control information for scheduling downlink data, and receiving downlink data; Response information of the downlink data based on at least one of information of a resource of a downlink control channel for scheduling downlink data, information of a resource to which an uplink control channel is assigned, and offset information of a resource to which an uplink control channel is assigned.
  • a control unit for determining a resource of an uplink control channel through which transmission is performed; And a transmitter for transmitting response information of downlink data using the determined uplink control channel resource.
  • Another embodiment of the present invention is a base station for setting a resource of the response information of the downlink data for the Machine Type Communication (MTC) terminal of the base station, the information of the resource to which the uplink control channel to which the response information is transmitted, and A configuration information including at least one of offset information of a resource to which an uplink control channel is allocated, downlink control information for scheduling downlink data, and a transmitter for transmitting downlink data;
  • the resource of the uplink control channel transmitted includes at least one of information of a resource of a downlink control channel for scheduling downlink data, information of a resource to which an uplink control channel is assigned, and offset information of a resource to which an uplink control channel is allocated. It provides a base station characterized in that it is determined based on one.
  • FIG. 1 is a diagram illustrating an example of a wireless communication system to which an embodiment of the present invention is applied.
  • FIG. 2 is a flowchart illustrating a method according to an example of Embodiment 1 of the present invention.
  • FIG. 3 is a flowchart showing a method according to another example of Embodiment 1 of the present invention.
  • FIG. 4 is a diagram illustrating repeatedly transmitting a PDCCH through a plurality of downlink subframes according to an embodiment of the present invention.
  • FIG. 5 is a flowchart showing a method according to Embodiment 2 of the present invention.
  • FIG. 6 is a flowchart illustrating a method according to Embodiment 3 of the present invention.
  • FIG. 7 is a flowchart illustrating a PUCCH transmission method of a terminal according to an embodiment of the present invention.
  • FIG. 8 is a flowchart illustrating a PUCCH setting method of a base station according to an embodiment of the present invention.
  • FIG. 9 is a block diagram showing the configuration of a terminal according to another embodiment of the present invention.
  • FIG. 10 is a block diagram showing the configuration of a base station according to another embodiment of the present invention.
  • the MTC terminal may mean a terminal supporting low cost (or low complexity) or a terminal supporting coverage enhancement.
  • the MTC terminal may mean a terminal supporting low cost (or low complexity) and coverage enhancement.
  • the MTC terminal may mean a terminal defined in a specific category for supporting low cost (or low complexity) and / or coverage enhancement.
  • the MTC terminal may mean a newly defined 3GPP Release-13 low cost (or low complexity) UE category / type for performing LTE-based MTC related operations.
  • the MTC terminal supports enhanced coverage compared to the existing LTE coverage, or supports UE category / type defined in the existing 3GPP Release-12 or lower, or newly defined Release-13 low cost (or lower power consumption).
  • low complexity can mean UE category / type.
  • FIG. 1 shows an example of a wireless communication system to which an embodiment of the present invention is applied.
  • 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) 10 and a base station (Base Station, BS, or eNB) 20.
  • 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 20 or a cell generally refers to a station that communicates with the user terminal 10, and includes a Node-B, an evolved Node-B, an Sector, and a Site.
  • Site BTS (Base Transceiver System), Access Point (Access Point), Relay Node (Relay Node), RRH (Remote Radio Head), RU (Radio Unit), may be called other terms.
  • a base station or a cell is interpreted in a comprehensive sense to indicate some areas or functions covered by a base station controller (BSC) in CDMA, a NodeB in WCDMA, an eNB or a sector (site) in LTE, and the like. It is meant to cover various coverage areas such as mega cell, macro cell, micro cell, pico cell, femto cell and relay node, RRH, RU, small cell communication range.
  • BSC base station controller
  • the base station may be interpreted in two meanings. i) a device providing a megacell, a macrocell, a microcell, a picocell, a femtocell, a small cell with respect to the wireless area, or ii) may indicate the wireless area itself. In i) all devices that provide a given wireless area are controlled by the same entity or interact with each other to cooperatively configure the wireless area to 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 means a communication or communication path from a terminal to multiple transmission / reception points.
  • a transmitter may be part of multiple transmission / reception points, and a receiver may be part of a terminal.
  • a transmitter may be part of a terminal, and a receiver may be part of multiple transmission / reception points.
  • a situation in which a signal is transmitted and received through a channel such as a PUCCH, a PUSCH, a PDCCH, 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 base station 20 performs downlink transmission to the terminals 10.
  • the base station 20 is a downlink control information and uplink data channel such as a physical downlink shared channel (PDSCH), which is a main physical channel for unicast transmission, and scheduling required for reception of the PDSCH.
  • PDSCH physical downlink shared channel
  • a physical downlink control channel (PDCCH) for transmitting scheduling grant information for transmission in eg, a physical uplink shared channel (PUSCH)
  • PUSCH physical uplink shared channel
  • PUCCH resource mapping for HARQ (Hybrid Automatic Repeat Request) ACK / NACK feedback for PDSCH reception scheduled through legacy PDCCH of a UE in an existing 3GPP LTE / LTE-Advanced system is represented by Equations (1) and (2) below.
  • the upper layer for example, RRC (Radio Resource Control)
  • DCI Downlink Control Information
  • Equations (1) and (2) above are PUCCHs for HARQ ACK / NACK feedback at antenna port 0 and antenna port 1, respectively, in a terminal supporting two antenna port transmissions in a corresponding terminal.
  • resource Refers to Represents a lowest CCE index value to which a corresponding DL scheduling grant has been transmitted. Is a cell-specific parameter set by higher layer (RRC) signaling.
  • a terminal in which one serving cell is configured in a frame structure type 1 (FDD) system PUCCH resource mapping scheme for HARQ ACK / NACK transmission through the PUCCH format 1a / 1b.
  • a PUCCH resource mapping rule for a terminal configured with one or more serving cells is determined as a function of a lowest CCE index and a higher layer parameter similarly to the above scheme, or in advance.
  • An ACK / NACK Resource Indication (ARI) scheme indicating a PUCCH resource to be used may be used.
  • the MTC terminal In the case of the MTC terminal, a low capability terminal with low hardware and software performance is assumed in order to reduce the unit cost. Accordingly, deterioration of the transmission and reception performance of the MTC terminal for the physical layer channels designed based on the UE category of the existing LTE / LTE-Advanced terminal and the corresponding UE capability is expected. Discussion is underway to improve the transmit / receive performance.
  • a method of power boosting for a corresponding physical layer channel and repetition of a plurality of subframes has been proposed.
  • a power gain is obtained by repeatedly transmitting a downlink control channel PDCCH through a plurality of downlink subframes to transmit one downlink control information (DCI) for an MTC terminal.
  • DCI downlink control information
  • the solution is being considered.
  • PDSCH a method of increasing reception performance of an MTC terminal by repeatedly transmitting through a plurality of downlink subframes has been considered.
  • DL assignment information for PDSCH reception which is a downlink data channel of any UE, is the same downlink. It was transmitted only through the PDCCH of the link subframe.
  • PUCCH resource allocation rule for uplink HARQ ACK / NACK transmission for the PDSCH reception was determined as a function of the lowest control channel element (CCE) on which the downlink allocation PDCCH or EPDCCH is transmitted. Accordingly, collisions between PUCCH resources for transmitting HARQ ACK / NACK by each UE can be avoided for PDSCH transmissions for different UEs transmitted through the same downlink subframe.
  • CCE control channel element
  • the CCE index value to be applied to the lowest CCE index is applied.
  • the PUCCH resource for the HARQ ACK / NAKC feedback of the general LTE terminal instead of the MTC terminal and the MTC terminal Conflicts between PUCCH resources may occur.
  • the present invention provides a method and apparatus for allocating PUCCH resources for uplink HARQ ACK / NACK feedback of an MTC terminal.
  • FIG. 2 is a flowchart illustrating a method according to an example of Embodiment 1.
  • the base station is a separate PUCCH resource start offset parameter for the MTC terminal, By defining a value (S210), it is included in the corresponding RRC signaling and transmitted to the terminal (S220).
  • the PUCCH resource mapping equations (1) and (2) of step S240 the UE determines a resource of the PUCCH by applying a replacement, and transmits HARQ ACK / NACK to the base station through the PUCCH of the determined resource. That is, in the case of the MTC terminal, it may be applied as shown in Equations (3) and (4) below.
  • the value may be set for each MTC terminal through UE-specific RRC signaling.
  • broadcasting may be broadcast to an MTC terminal in a corresponding cell through cell-specific RRC signaling or PBCH for an MTC terminal.
  • FIG. 3 is a flowchart illustrating a method according to another example of Embodiment 1.
  • the base station defines a plurality of candidate PUCCH resource start offset values for each MTC terminal through higher layer RRC signaling (
  • a plurality of candidate PUCCH resource start offset values may be transmitted to the terminal (S320), and the PUCCH resource start offset values to be applied when the PDSCH resource is allocated may be signaled to the terminal (S330).
  • the terminal determines the resources of the PUCCH using equations (3) and (4) (S340), and transmits the HARQ ACK / NACK to the base station through the PUCCH of the determined resources (S350).
  • a PUCCH resource start offset parameter to be applied may be indicated through a downlink allocation DCI format for an MTC terminal.
  • PUCCH resource start offset indication an explicit method of explicitly defining a PUCCH resource start offset indicator information area in a downlink allocation DCI format or using an existing information area may be used. have.
  • the MTC terminal By setting four candidate PUCCH resource start offset parameters of P2, and defining a 2-bit information area for indicating the corresponding PUCCH resource start offset in the downlink allocation DCI format, through this PUCCH resource mapping equation (3), ( It can be indicated to the PUCCH resource start offset to apply to 4).
  • an existing information area such as a TPC command may be used to indicate a corresponding PUCCH resource start offset without additionally defining a new information area.
  • the value to be applied among the candidate PUCCH resource start offsets may be implicitly informed.
  • the applied PUCCH resource start offset value may be determined according to a PDCCH aggregation level or a repetition level, that is, the number of PDCCH repetitions for transmitting a corresponding DCI.
  • FIG. 4 is a diagram illustrating repeatedly transmitting a PDCCH through a plurality of downlink subframes according to an embodiment of the present invention.
  • the PDCCH may be repeatedly transmitted through a plurality of downlink subframes in order to improve DCI reception performance of the MTC terminal.
  • the lowest CCE index to be applied to the above equations (3) and (4) You need a definition for the value.
  • a downlink allocation DCI for an arbitrary MTC terminal is repeatedly transmitted through PDCCHs of a plurality of downlink subframes, it is applied to the PUCCH resource mapping equation (3) or (4).
  • the lowest CCE index among CCEs used for transmitting the first PDCCH is applied. It can be defined as a value.
  • the lowest CCE index of the N th PDCCH, which is the last repeated PDCCH may be used. It can be defined as a value.
  • the smallest CCE index among all CCE indexes used for transmission of each N repeated PDCCHs is represented. It can be defined as a value.
  • the PUCCH resource starting offset is not defined in the equation for the existing LTE / LTE-A terminal without defining a new PUCCH resource starting offset for the MTC terminal as shown in FIG. 2 or FIG. 3. Value Even if you reuse it, you apply it to apply to the equations (1) and (2). The method of defining a value is also described above. The same way of defining the values can be applied.
  • Embodiment 2 PUCCH Resource Allocation to Downlink Allocation DCI
  • FIG. 5 is a flowchart showing a method according to Embodiment 2 of the present invention.
  • the base station presets a candidate PUCCH resource value for HARQ ACK / NACK feedback of the corresponding MTC terminal for each MTC terminal through higher layer signaling as shown in Table 1 below (S510), and allocates downlinks.
  • a PUCCH resource indicator field for indicating a PUCCH resource to be used among corresponding candidate PUCCH resource values may be defined through DCI and may be directly signaled to the UE (S520).
  • the terminal determines a PUCCH resource (S530), and transmits the HARQ ACK / NACK to the base station through the PUCCH of the determined resource (S540).
  • the number of candidate PUCCH resource values may be determined according to the size of the PUCCH resource indicator field of the downlink allocation DCI.
  • the PUCCH resource indicator field is composed of 2 bits
  • four candidate PUCCH resource values may be configured through higher layer signaling for configuring the corresponding PUCCH resource, and accordingly, downlink
  • the UE may map a PUCCH resource value to which HARQ ACK / NACK feedback is transmitted among four corresponding PUCCH resource values as shown in Table 1 below. have.
  • the PUCCH resource indicator field may use some of the newly defined or included information areas included in the downlink allocation as the corresponding PUCCH resource indicator.
  • a TPC command information area composed of 2 bits may be used for a corresponding PUCCH resource indicator.
  • each candidate PUCCH resource value may include a value of the number of PUCCH repetitions. That is, not only PUCCH resources to be used for the corresponding HARQ ACK / NACK feedback but also may be defined to repeatedly transmit HARQ ACK / NACK feedback through the corresponding PUCCH resources over a number of uplink subframes and set for each PUCCH resource value. .
  • FIG. 6 is a flowchart illustrating a method according to Embodiment 3 of the present invention.
  • an additional ACK resource offset parameter for the MTC terminal Can be defined and applied to the PUCCH resource mapping expression. That is, for an arbitrary MTC terminal, an ARO (ACK Resource Offset) information region for additionally indicating a PUCCH resource offset value is additionally defined in the downlink allocation for the corresponding MTC terminal.
  • ARO ACK Resource Offset
  • To be applied to the PUCCH resource mapping expression for the MTC terminal of A value may be signaled to the terminal (S610).
  • the terminal determines a PUCCH resource (S620), and transmits HARQ ACK / NACK to the base station through the PUCCH of the determined resource (S630).
  • the values are fixed in table mapping method for each ARO value as shown in Table 2 below.
  • the value is defined, or the base station A value may be set and signaled to the corresponding MTC terminal.
  • PUCCH resource mapping rule for an MTC terminal is proposed.
  • PUCCH for DL HARQ ACK feedback of an arbitrary MTC terminal may also be repeatedly transmitted through a plurality of uplink subframes for coverage enhancement.
  • a PUCCH resource for DL HARQ ACK feedback is determined in one uplink subframe according to the proposed method, and the same determined by the above methods in a plurality of uplink subframes according to the number of repeated PUCCH transmissions. It may be defined to repeatedly transmit DL HARQ ACK feedback through the PUCCH resource.
  • the present invention does not include specific embodiments of the number of PUCCH repetitions for the HARQ ACK / NACK feedback of the MTC terminal, but it is apparent that the above-described embodiments can be applied regardless of the number of PUCCH repetitions. Do.
  • FIG. 7 is a flowchart illustrating a PUCCH transmission method of a terminal according to an embodiment of the present invention.
  • the terminal receives configuration information for PUCCH resource allocation through higher layer (eg, RRC) signaling from the base station (S710).
  • higher layer eg, RRC
  • the terminal receives a DCI for downlink allocation from the base station through the PDCCH or EPDCCH (S720).
  • the terminal receives data from the base station through the PDSCH based on the scheduling information in the DCI (S730).
  • the UE is a resource of the PUCCH in which HARQ ACK / NACK of the data received through the PDSCH is transmitted. ) Is determined (S740).
  • the terminal is a PUCCH resource start offset parameter for the MTC terminal in step S710 Receives configuration information, including, and in step S740 using the equations (3) and (4) resources of the PUCCH ( ) Can be determined. Or, the terminal performs PUCCH resource start offset parameter for the MTC terminal in step S710 Receive configuration information including a plurality of pieces, a plurality of steps in step S720 Receives control information indicating one of the resources of the PUCCH using equations (3) and (4) in step S740 ) Can be determined.
  • the terminal is a PUCCH resource start offset parameter for the MTC terminal in step S710.
  • Receive configuration information including a plurality of pieces, and in step S720 Receives control information indicating one of the resources of the PUCCH based on the control information in step S740 ( ) Can be determined.
  • the UE may offset a plurality of ACK resources in step S720.
  • Receives control information indicating one of the resources of the PUCCH using equations (5) and (6) in step S740 ( ) Can be determined.
  • a plurality of ACK resource offset May be set in advance or delivered from the base station to the terminal in step S710.
  • the lowest CCE index through which the PDCCH or EPDCCH is transmitted ( n CCE ) is (1) the lowest CCE index used for the first PDCCH or EPDCCH transmission, or (2) the lowest CCE index used for the last PDCCH or EPDCCH transmission, or (3) for the PDCCH or EPDCCH transmission. It may be the minimum value among the lowest CCE indexes used.
  • step S750 HARQ ACK / NACK of the data received through the PDSCH is transmitted to the base station.
  • steps S740 and S750 are described as being separately performed, but may be performed as one step.
  • uplink control determined based on at least one of information of a resource of a downlink control channel for scheduling downlink data, information of a resource to which an uplink control channel is allocated, and offset information of a resource to which an uplink control channel is allocated.
  • Response information of downlink data may be transmitted using a resource of a channel.
  • FIG. 8 is a flowchart illustrating a PUCCH resource setting method of a base station according to an embodiment of the present invention.
  • the base station transmits configuration information for PUCCH resource allocation through higher layer (eg, RRC) signaling to the terminal (S810).
  • higher layer eg, RRC
  • the base station transmits the DCI for downlink allocation through the PDCCH or EPDCCH to the terminal (S820).
  • the base station transmits data to the terminal through the PDSCH (S830).
  • the base station is a PUCCH resource start offset parameter for the MTC terminal in step S810 Transmits the configuration information including a, and the terminal uses the equations (3) and (4) of the PUCCH resource ( ) Can be determined.
  • the base station determines the PUCCH resource start offset parameter for the MTC terminal in step S810 Transmits configuration information including a plurality of pieces of data, and in step S820, And transmits control information indicating one of the resources of the PUCCH using equations (3) and (4). ) Can be determined.
  • the base station determines the PUCCH resource start offset parameter for the MTC terminal in step S810. Transmit configuration information including a plurality, and in step S820 And transmits control information indicating one of the resources of the PUCCH based on the control information. ) Can be determined.
  • the base station offsets a plurality of ACK resources in step S820 After transmitting control information indicating one of the terminal, the terminal uses the equations (5) and (6) of the PUCCH resource ( ) Can be determined. At this time, a plurality of ACK resource offset May be previously set or delivered from the base station to the terminal in step S810.
  • the lowest CCE index through which the PDCCH or EPDCCH is transmitted ( n CCE ) is (1) the lowest CCE index used for the first PDCCH or EPDCCH transmission, or (2) the lowest CCE index used for the last PDCCH or EPDCCH transmission, or (3) for the PDCCH or EPDCCH transmission. It may be the minimum value among the lowest CCE indexes used.
  • FIG. 9 is a block diagram showing the configuration of a terminal according to another embodiment of the present invention.
  • the terminal 900 includes a controller 910, a receiver 920, and a transmitter 930.
  • the receiver 920 may receive configuration information for PUCCH resource allocation from a base station through higher layer (eg, RRC) signaling.
  • higher layer eg, RRC
  • the receiver 920 may receive a DCI for downlink allocation from the base station through the PDCCH or the EPDCCH, and may receive data through the PDSCH based on scheduling information in the DCI.
  • the controller 910 is a resource of the PUCCH in which HARQ ACK / NACK of the data received through the PDSCH is transmitted. ) Can be determined.
  • the transmitter 930 determines the resources of the determined PUCCH ( HARQ ACK / NACK of the data received through the PDSCH can be transmitted to the base station.
  • the receiver 920 is a PUCCH resource start offset parameter for the MTC terminal Receives configuration information, including, and the control unit 930 is a resource of the PUCCH using equations (3) and (4) ) Can be determined.
  • the receiver 920 may be a PUCCH resource start offset parameter for the MTC terminal.
  • Receive configuration information including a plurality of; Receives control information indicating one of the control unit 910, the control unit 910 using the equations (3) and (4) of the PUCCH resources ( ) Can be determined.
  • the receiver 920 may include a PUCCH resource start offset parameter for the MTC terminal.
  • Receive configuration information including a plurality, and a plurality of Receives control information indicating one of the control unit, the controller 910 is based on the control information of the PUCCH ( ) Can be determined.
  • the receiver 920 may offset a plurality of ACK resources. Receiving control information indicating one of the control unit 910, the control unit 910 uses the equations (5) and (6) of the PUCCH resource ( ) Can be determined. At this time, a plurality of ACK resource offset May be previously set or delivered from the base station to the terminal through higher layer signaling.
  • the lowest CCE index through which the PDCCH or EPDCCH is transmitted ( n CCE ) is (1) the lowest CCE index used for the first PDCCH or EPDCCH transmission, or (2) the lowest CCE index used for the last PDCCH or EPDCCH transmission, or (3) for the PDCCH or EPDCCH transmission. It may be the minimum value among the lowest CCE indexes used.
  • FIG. 10 is a block diagram showing the configuration of a base station according to another embodiment of the present invention.
  • the base station 1000 includes a controller 1010, a transmitter 1020, and a receiver 1030.
  • the controller 1010 controls the overall operation of the base station according to the PUCCH resource allocation for the uplink HARQ ACK / NACK feedback of the MTC terminal required to perform the above-described present invention.
  • the transmitter 1020 may transmit configuration information for PUCCH resource allocation through higher layer (eg, RRC) signaling to the terminal.
  • higher layer eg, RRC
  • the transmitter 1020 may transmit a DCI for downlink allocation through the PDCCH or the EPDCCH to the terminal, and may transmit data through the PDSCH.
  • the receiver 1030 may receive an ACK / NACK for the PDSCH from the terminal through the PUCCH.
  • the transmitter 1020 is a PUCCH resource start offset parameter for the MTC terminal Transmits the configuration information including a, and the terminal uses the equations (3) and (4) of the PUCCH resource ( ) Can be determined.
  • the transmitter 1020 is a PUCCH resource start offset parameter for the MTC terminal Transmits configuration information including a plurality of And transmits control information indicating one of the resources of the PUCCH using equations (3) and (4). ) Can be determined.
  • the transmitter 1020 is a PUCCH resource start offset parameter for the MTC terminal Transmit configuration information including a plurality of And transmits control information indicating one of the resources of the PUCCH based on the control information. ) Can be determined.
  • the transmitter 1020 may be configured to offset a plurality of ACK resources. After transmitting control information indicating one of the terminal, the terminal uses the equations (5) and (6) of the PUCCH resource ( ) Can be determined. At this time, a plurality of ACK resource offset May be previously set or delivered from the base station to the terminal in step S810.
  • the lowest CCE index through which the PDCCH or EPDCCH is transmitted ( n CCE ) is (1) the lowest CCE index used for the first PDCCH or EPDCCH transmission, or (2) the lowest CCE index used for the last PDCCH or EPDCCH transmission, or (3) for the PDCCH or EPDCCH transmission. It may be the minimum value among the lowest CCE indexes used.

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

Abstract

L'invention concerne un procédé et un appareil d'attribution de ressources de PUCCH pour un renvoi d'information d'ACK/NACK de HARQ en liaison montante d'un terminal de communication de type machine (MTC) dans un système 3GPP LTE/LTE avancé.
PCT/KR2014/008765 2013-09-27 2014-09-22 Procédé d'attribution de ressources de canal de commande en liaison descendante d'un terminal et appareil associé WO2015046831A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US15/025,262 US10181931B2 (en) 2013-09-27 2014-09-22 Method for uplink control channel resource allocation of terminal and apparatus thereof
CN201480053321.6A CN105594139B (zh) 2013-09-27 2014-09-22 终端的上行链路控制信道资源分配方法及其设备

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR10-2013-0115367 2013-09-27
KR20130115367 2013-09-27
KR10-2014-0057938 2014-05-14
KR1020140057938A KR101904572B1 (ko) 2013-09-27 2014-05-14 단말을 위한 상향 링크 제어 채널 자원 설정 방법 및 장치

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CN109041223A (zh) * 2017-06-08 2018-12-18 华为技术有限公司 一种通信方法及相关设备
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Cited By (12)

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CN106161293A (zh) * 2015-04-09 2016-11-23 电信科学技术研究院 一种数据传输方法及设备
CN106161293B (zh) * 2015-04-09 2019-05-24 电信科学技术研究院 一种数据传输方法及设备
WO2016182287A1 (fr) * 2015-05-08 2016-11-17 엘지전자 주식회사 Procédé et appareil d'émission et de réception de signal de liaison montante dans un système de communications sans fil
US10506567B2 (en) 2015-05-08 2019-12-10 Lg Electronics Inc. Method and apparatus for transmitting and receiving uplink signal in wireless communication system
CN107733828A (zh) * 2016-08-12 2018-02-23 电信科学技术研究院 一种确定基带参数的方法和设备
CN107733828B (zh) * 2016-08-12 2020-10-09 电信科学技术研究院 一种确定基带参数的方法和设备
US11394596B2 (en) 2016-08-12 2022-07-19 Datang Mobile Communications Equipment Co., Ltd. Method and device for determining baseband parameter
CN111095956A (zh) * 2017-05-17 2020-05-01 汉阳大学校产学协力团 通过无线通信系统获得终端的位置信息的方法和装置
CN111095956B (zh) * 2017-05-17 2023-12-05 汉阳大学校产学协力团 通过无线通信系统获得终端的位置信息的方法和装置
CN109041223A (zh) * 2017-06-08 2018-12-18 华为技术有限公司 一种通信方法及相关设备
CN109041223B (zh) * 2017-06-08 2024-02-13 华为技术有限公司 一种通信方法及相关设备
WO2019083249A1 (fr) * 2017-10-23 2019-05-02 엘지전자 주식회사 Procédé de détermination par un terminal d'une ressource de canal de commande de liaison montante dans un système de communication sans fil et terminal d'utilisation dudit procédé

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