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WO2013162185A1 - Procédé pour la mise en place de terminaux et de ressources de transmission de canal de commande de liaison montante destinées à des terminaux - Google Patents

Procédé pour la mise en place de terminaux et de ressources de transmission de canal de commande de liaison montante destinées à des terminaux Download PDF

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Publication number
WO2013162185A1
WO2013162185A1 PCT/KR2013/002720 KR2013002720W WO2013162185A1 WO 2013162185 A1 WO2013162185 A1 WO 2013162185A1 KR 2013002720 W KR2013002720 W KR 2013002720W WO 2013162185 A1 WO2013162185 A1 WO 2013162185A1
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Prior art keywords
scell
control channel
downlink data
uplink control
transmission
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PCT/KR2013/002720
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English (en)
Korean (ko)
Inventor
박동현
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Pantech Co Ltd
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Pantech Co Ltd
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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
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1893—Physical mapping arrangements
    • 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 signalling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure

Definitions

  • the present invention relates to a wireless communication system, and communicates using a plurality of CCs including a primary cell (PCell) and a secondary cell (SCell), and has different time division duplex (TDD) settings for the plurality of CCs.
  • the present invention relates to a technique for setting a transmission resource of an uplink control channel for transmitting a hybrid automatic repeat request (HARQ) Ack / Nack for a downlink data channel of a terminal.
  • HARQ hybrid automatic repeat request
  • LTE Long Term Evolution
  • LTE-A Long Term Advanced
  • 3GPP series High-speed and large-capacity communication systems that can transmit and receive various data such as video and wireless data, beyond voice-oriented services. Therefore, there is a demand for developing a technology capable of transmitting a large amount of data corresponding to a wired communication network.
  • a method of efficiently transmitting data through a plurality of CCs may be used.
  • TDD time division duplex
  • data may be transmitted and received by dividing transmission (Tx) and reception (Reception, Rx) into time slots using specific frequency bands.
  • Tx transmission
  • Rx reception
  • the timing of transmitting response information for data reception may be changed according to a method of configuring uplink (UL) and downlink (DL) in the TDD system.
  • CA carrier aggregation
  • CCs component carriers
  • TDD setting of each CC when the TDD setting of each CC is different, data is received at any timing. Consideration should be given as to whether to send the response information for, and also in what timing the response information should be allocated.
  • the resource to which response information is allocated in the terminal using the CA technology so that a collision does not occur between the terminal using the CA technology and the terminal using the CA technology without changing the technology for the terminal not using the existing CA. Should be set.
  • An object of the present invention is to provide a method and apparatus for determining a resource to which response information for data reception is allocated when a TDD configuration of two CCs in a multicarrier aggregation environment is different.
  • An embodiment of the present invention is to communicate using a plurality of component carriers including a primary cell (PCell) and a secondary cell (SCell), and in a system having different time division duplex (TDD) settings for the plurality of component carriers.
  • a method of configuring a transmission resource of an uplink control channel for transmitting a hybrid automatic repeat request (HARQ) Ack / Nack for a downlink data channel of a terminal, the uplink to transmit the HARQ Ack / Nack for the downlink data channel of the PCell Determining a transmission resource of a link control channel based on a resource index of a downlink control channel for transmitting control information for a downlink data channel of the PCell; And a transmission resource of an uplink control channel for transmitting HARQ Ack / Nack for a downlink data channel of the SCell based on a value of a transmission power control field or a value of a carrier indication field among control information of a downlink data channel of the SCell. It provides a method for
  • Another embodiment of the present invention is to communicate using a plurality of component carriers including a primary cell (PCell) and a secondary cell (SCell), and in a system having different time division duplex (TDD) settings for the plurality of component carriers.
  • Resource index of a downlink control channel for transmitting a transmission resource of an uplink control channel for transmitting a hybrid automatic repeat request (HARQ) Ack / Nack for the downlink data channel of the PCell and control information for a downlink data channel of the PCell
  • HARQ hybrid automatic repeat request
  • the transmission resource of the uplink control channel for transmitting the HARQ Ack / Nack for the downlink data channel of the SCell and the control resource for the downlink data channel of the SCell or the carrier indication field It provides a terminal comprising a data channel HARQ transmission resource setting unit to determine based on the value of.
  • the present invention described above provides a method and apparatus for determining a resource to which response information for data reception is allocated when the TDD configuration of two CCs in a multicarrier aggregation environment is different.
  • FIG. 1 illustrates a wireless communication system to which embodiments of the present invention can be applied.
  • case A illustrates a case where case A, case B, and case C are applied according to the TDD setting of the PCell and the TDD setting of the SCell.
  • FIG. 3 shows an example in which serving cells in which PCell is set to TDD configuration 0 and SCell is set to TDD configuration 1 are used for communication.
  • FIG. 4 illustrates an example in which configuration information for a PDSCH of an SCell is transmitted through a PDCCH of a PCell in the example of FIG. 3.
  • FIG. 5 is a flowchart illustrating a PUCCH A / N resource allocation method according to an embodiment.
  • FIG. 6 is a flowchart illustrating a PUCCH A / N resource allocation method according to another embodiment.
  • FIG. 7 is a flowchart illustrating a PUCCH A / N resource allocation method according to another embodiment.
  • FIG. 8 is a flowchart illustrating a PUCCH A / N resource allocation method according to another embodiment.
  • FIG. 9 is a block diagram illustrating a configuration of a terminal according to an embodiment.
  • FIG. 10 is a block diagram illustrating a configuration of a base station according to an embodiment.
  • Wireless communication systems are widely deployed to provide various communication services such as voice and packet data.
  • a wireless communication system includes a user equipment (UE) 10 and a base station 20 (BS) 20 performing uplink and downlink communication with the user equipment 10.
  • UE user equipment
  • BS base station 20
  • the terminal 10 is a comprehensive concept of a terminal in a wireless communication.
  • WCDMA Wideband Code Division Multiple Access
  • UE User Equipment
  • MS Mobile Station
  • UT User Interface
  • 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. Other terms may be referred to as a site, a base transceiver system (BTS), an access point, a relay node, and the like.
  • BTS base transceiver system
  • the base station 20 or a cell is a generic term representing 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 should be interpreted as meaning, and it means to cover all the various coverage areas such as megacell, macrocell, microcell, picocell, femtocell, radio resource head (RRH) and relay node communication range.
  • BSC base station controller
  • NodeB in WCDMA
  • eNB a sector
  • RRH radio resource head
  • one terminal 10 and one base station 20 are shown in FIG. 1, the present invention is not limited thereto. It is possible for one base station 20 to communicate with the plurality of terminals 10, and also for one terminal 10 to communicate with the plurality of base stations 20.
  • 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
  • TDD downlink and uplink time points are divided. If various TDD configurations exist, these time points may also vary.
  • Table 1 below shows the TDD configuration. It can be seen that each TDD configuration has a different UL-DL subframe transmission timing. This TDD setting is set cell-specific.
  • a region denoted by D is a downlink subframe and a region denoted by U is an uplink subframe in a radio frame including 10 subframes.
  • S is a subframe (downlink-to-uplink switch-point periodicity) switched from downlink to uplink. For example, when the TDD UL-DL configuration is “1”, when the subframe number is 0, 4, 5, 9, the downlink subframe is used, and when the subframe number is 2, 3, 7, 8 If the uplink is a subframe and the subframe numbers 1 and 6 are subframes that are switched from downlink to uplink.
  • the UE when using one of the TDD UL-DL configuration, the UE may know in advance at which time downlink and at what time. This information allows the terminal to predict and operate in advance.
  • a / N (Ack / Nack) for the PDSCH
  • a / N for the PDSCH transmitted on the PUCCH is called A / N or the PUCCH A / N for the PDSCH.
  • a downlink-related set index (K: ⁇ k 0 , k 1 ,... k M-1 ⁇ ) indicating which downlink subframe is transmitted through which downlink subframe is transmitted is as follows. It may be as shown in Table 2.
  • the PUCCH resource may be determined implicitly as shown in Equation 1 below.
  • M is the number of downlink subframes associated with the uplink subframe n, and 0 ⁇ i ⁇ M-1.
  • c is selected from ⁇ 0, 1, 2, 3 ⁇ , Satisfies the ego, Is the number of downlink resource blocks, Is the number of subcarriers (eg, 12) in the resource block, Is the number of the first CCE (control channel elements) used for transmission of the corresponding PDCCH in the subframe (nk i ).
  • PUCCH format 1 / 1a / 1b resource reserved for SR (Scheduling Request) transmission PUCCH format 1 / 1a / 1b resource indicated by Acknowledgment Resource Indication (ARI), reserved for Semi-Persistent Scheduling (SPS) transmission
  • PUCCH format 1 / 1a / 1b may be transmitted using a PUCCH format 1 / 1a / 1b resource, etc.
  • the system bandwidth is 10 MHz (50 Physical Resource Block (PRB)), Assume the case of (SR, ARI, SPS, etc. not transmitted).
  • PRB Physical Resource Block
  • n c 0 when CCE is 0 ⁇ 10 Is 0 to 10.
  • n when CCE is 11 ⁇ 26, c 1 Is 11-26.
  • n when CCE is 27 ⁇ 43 c 2 Is 27-43.
  • n CCE is 44 ⁇ 60 c 3 Is 44-60.
  • cCE 0 ⁇ 10
  • i 1 Is 11-21.
  • cCE 11 ⁇ 26
  • i 1 Is 38-53.
  • cCE 27 ⁇ 43
  • i 1 Is 71-87.
  • cCE 0 ⁇ 10
  • cCE 11 ⁇ 26
  • i 1 Is 49 to 64
  • i 2 Is 65 to 80.
  • CCE 27 ⁇ 43
  • i 1 Is 98 ⁇ 114
  • i 2 Is 115-131.
  • cCE 44 ⁇ 60
  • i 1 Is 149-165
  • i 2 Is 166-182.
  • cCE 0 ⁇ 10
  • i 3 Is 33-43.
  • cCE 11 ⁇ 26
  • i 1 Is 60 to 75
  • i 2 Is 76 ⁇ 91
  • i 3 Is 92-107.
  • a multicarrier aggregation (CA) technique that combines one or more component carriers (CC) may be used.
  • the plurality of CCs may include one primary cell (PCell) and one or more secondary cells (SCell).
  • a terminal communicating with a base station in a CA environment may perform communication through a plurality of aggregated CCs having different TDD settings.
  • the PUCCH A / N may be delivered only through the PCell.
  • the PUCCH HARQ Ack / Nack timing in the PCell may follow the TDD configuration of the PCell (see Table 2).
  • the PUCCH HARQ Ack / Nack timing in the SCell may be one of the following three cases.
  • Case A When downlink subframes of the PCell are a superset of downlink subframes of the SCell, the PUCCH HARQ Ack / Nack timing of the SCell may follow the TDD configuration of the PCell. In other words, when the uplink subframes of the PCell are a subset of the uplink subframes of the SCell, the PUCCH HARQ Ack / Nack timing of the SCell may follow the TDD configuration of the PCell.
  • Case B When the set of downlink subframes of the PCell is a subset of the set of downlink subframes of the SCell, the PUCCH HARQ Ack / Nack timing of the SCell may follow the TDD configuration of the SCell. In other words, when the uplink subframes of the PCell are an expanded set of uplink subframes of the SCell, the PUCCH HARQ Ack / Nack timing of the SCell may follow the TDD configuration of the SCell.
  • Case C When the set of downlink subframes of the PCell is not a subset or an expanded set of the set of downlink subframes of the SCell, the PUCCH HARQ Ack / Nack timing of the SCell is set to a TDD other than the TDD setting of the PCell or SCell. You can follow For example, the PUCCH HARQ Ack / Nack timing of the SCell may follow a TDD configuration in which subframes including both downlink subframes of the PCell and downlink subframes of the SCell are configured as downlink subframes.
  • the PUCCH HARQ Ack / Nack timing of the SCell may follow a TDD configuration in which a common subframe among the uplink subframes of the PCell and the uplink subframe of the SCell is configured as an uplink subframe.
  • the PUCCH HARQ Ack / Nack timing of the SCell may be as shown in FIG. 2.
  • 2 illustrates a case where case A, case B, and case C are applied according to the TDD setting of the PCell and the TDD setting of the SCell, and the TDD setting applied to the case C is displayed.
  • a resource for PUCCH A / N may collide.
  • FIG. 3 illustrates, as an example, a case in which serving cells in which PCell is set to TDD configuration 0 and SCell is set to TDD configuration 1 are used for communication.
  • the PCell may determine the PUCCH HARQ Ack / Nack timing according to the TDD configuration 0. That is, referring to Table 2, A / N for PDSCH in downlink subframe 6 of PCell is transmitted in uplink subframe 2 and PDSCH in downlink subframe 0 of PCell in uplink subframe 4. A / N is transmitted, A / N for PDSCH in downlink subframe 1 of PCell is transmitted in uplink subframe 7, and PDSCH in downlink subframe 5 of PCell in uplink subframe 9 A / N for is transmitted.
  • the SCell may determine the PUCCH HARQ Ack / Nack timing according to TDD configuration 1.
  • a / N for PDSCH in downlink subframes 5 and 6 of the SCell is transmitted in uplink subframe 2
  • a / N for PDSCH is transmitted
  • a / N for PDSCH in downlink subframes 0 and 1 of SCell is transmitted in uplink subframe 7
  • downlink subframe for SCell in uplink subframe 8 A / N for PDSCH at 4 is transmitted.
  • an existing UE eg, 3GPP
  • the PUCCH resource allocated for the PCell of the terminal using CA technology as well as the terminal according to Rel-8 / 9/10 may collide with the PUCCH resource allocated for the SCell of the terminal using CA technology.
  • the PUCCH resource is determined.
  • control information transmitted through a control channel (eg, PDCCH) of one CC may include configuration of a data channel (eg, PDSCH) of another CC.
  • FIG. 4 illustrates an example in which configuration information for a PDSCH of an SCell is transmitted through a PDCCH of a PCell in the example of FIG. 3.
  • configuration information of PDSCH (PDSCH1) of subframe 0 of SCell may be transmitted through PDCCH (PDCCH1) of subframe 0 of PCell.
  • configuration information for PDSCH (PDSCH2) in subframe 1 of SCell may be transmitted through PDCCH (PDCCH2) in subframe 1 of PCell.
  • configuration information for PDSCH (PDSCH3) in subframe 0 of PCell may be transmitted through PDCCH (PDCCH3) in subframe 0 of PCell.
  • a / N for PDSCH (PDSCH1) of subframe 0 of SCell A / N for PDSCH (PDSCH2) of subframe 1 of SCell, and PDSCH (PDSCH3) of subframe 1 of PCell. Both A / Ns are transmitted in uplink subframe 7 of the PCell.
  • the A / N transmission resource for the PDSCH located in the SCell is also the first of the PDCCH located in the PCell. Can be derived from the CCE index. In such a case, a collision may occur as described above.
  • the PUCCH A / N resource for the SCell may be derived in an implicit manner rather than implicitly from the first CCE index of the PDCCH according to equation (1).
  • FIG. 5 is a flowchart illustrating a PUCCH A / N resource allocation method according to an embodiment.
  • the base station delivers an A / N resource indicator (ARI) resource mapping table to the terminal through higher layer signaling (eg, RRC (Radio Resource Control) signaling) (S510).
  • the ARI resource mapping table includes a 2-bit value of the ARI delivered using the transmit power control (TPC) field in the downlink control information (DCI) transmitted through the PDCCH, and a corresponding explicitly allocated resource set. can do.
  • the resource set is a PUCCH resource ( ) May be included.
  • the ARI resource mapping table may be as shown in Table 7 below.
  • Table 7 shows that a value of one ARI indicates a resource set composed of one PUCCH A / N resource, but one resource set may be configured of a plurality of PUCCH A / N resources.
  • the SCell is a 2 TB transmission mode as a multi-input multi-output (MIMO)
  • MIMO multi-input multi-output
  • a / N transmission resources may be needed.
  • each transmission resource set may include two PDSCH transmission resources.
  • the base station transmits a PDCCH having DCI information through cross-carrier scheduling for PDSCH transmission on the SCell (S520).
  • DCI includes a 2-bit TPC field that can be used as an ARI.
  • the ARI may be delivered using the TPC field in the DCI. Since a plurality of data channels may be located on a plurality of carriers in a CA environment, a plurality of DCIs for transmitting control information of each data channel may be delivered.
  • the TPC field for transmission power control of the terminal may be located in each DCI.
  • the TPC field in one DCI may be used to control the transmission power of the UE, and the TPC field in the other DCI may be used as an ARI for configuring PUCCH A / N transmission resources.
  • the TPC field of the DCI for the PDSCH of the PCell transmitted through the downlink subframe of the PCell is used for transmission power control of the UE and the DCI of the PDSCH of the SCell transmitted through the downlink subframe of the PCell.
  • the TPC field may be used as an ARI for configuring A / N transmission resource for PDSCH of SCell.
  • the terminal determines the PUCCH A / N transmission resource of the SCell using the ARI value transmitted through the TPC field in the DCI (S540).
  • the terminal determines the PUCCH A / N transmission resource corresponding to the 2-bit ARI value using the ARI resource matching table transmitted through higher layer signaling.
  • the PUCCH A / N transmission resource for the PDSCH transmission of the PCell may be determined using the first CCE index of the PDCCH according to Equation 1 described above.
  • step S540 may be executed when the UE determines that the PUCCH A / N transmission resources according to Equation 1 collide in an uplink subframe. That is, the UE determines whether or not the PUCCH A / N transmission resource according to Equation 1 collides in an uplink subframe (S530). If it is determined that the PUCCH A / N transmission resources collide (YES in S530), the UE determines the PUCCH A / N transmission resources for the PDSCH of the SCell by using a 2-bit ARI value in the DCI (S540).
  • the UE determines the PUCCH A / N transmission resources using the first CCE index of the PDCCH of the SCell according to Equation 1 described above ( S550).
  • the terminal transmits the PUCCH A / N using the determined PUCCH A / N transmission resource (S560).
  • FIG. 6 is a flowchart illustrating a PUCCH A / N resource allocation method for HARQ-ACK / NACK transmission for PDSCH transmission on a SCell according to another embodiment.
  • the base station transmits a carrier indicator field (CIF) mapping table to the terminal through higher layer signaling (eg, RRC signaling) (S610).
  • the CIF mapping table may include a 3-bit value delivered using a CIF in the DCI transmitted through the PDCCH and a resource set corresponding thereto. Where the resource set is one or more PUCCH resources ( ) May be included.
  • One bit of the 3-bit CIF field may be used to refer to one of two CCs for original purposes.
  • the remaining 2 bits may be used to explicitly refer to the PUCCH A / N transmission resource for PDSCH transmission on the SCell.
  • the CIF mapping table may be as shown in Table 8 below.
  • the base station transmits a DCI for cross-carrier scheduling through the PDCCH (S620).
  • DCI includes a 3-bit CIF composed of 1 bit for indicating a serving cell and 2 bits for indicating an explicit PUCCH A / N transmission resource.
  • the 3-bit CIF is '100'
  • the value of '1' of the first 1 bit indicates that the PDSCH is transmitted by the SCell
  • the value of '00' of the remaining 2 bits is A / for the PDSCH of the SCell.
  • N indicates that the transmission resource is determined by the first resource set.
  • Two bits for indicating the A / N resource in the CIF may be used as an indicator for the PUCCH format 1 / 1a / 1b resource for PDSCH transmission transmitted through the SCell. Therefore, two bits for indicating A / N resource of CIF in PDCCH for PDSCH transmission of PCell and two bits for indicating A / N resource of CIF in PDCCH for PDSCH transmission of SCell may be the same value.
  • the CIF in the PDCCH for PDSCH transmission of the SCell is '100' in which '1' for indicating the SCell and '00' for indicating the A / N transmission resource for the PDSCH of the SCell are combined
  • the CIF may be '000' in which '0' for indicating the PCell and '00' for indicating the A / N transmission resource for the PDSCH of the SCell are combined.
  • the terminal determines the PUCCH A / N transmission resource of the SCell using the value transmitted through the CIF in the DCI (S640).
  • the terminal determines a PUCCH A / N transmission resource corresponding to a value of 2 bits in the CIF using the CIF mapping table transmitted through higher layer signaling.
  • the PUCCH A / N transmission resource of the PCell may be determined using the first CCE index of the PDCCH according to Equation 1 described above.
  • the above-described step S640 may be executed when the UE determines that the PUCCH A / N transmission resource according to Equation 1 collides in an uplink subframe. That is, the terminal determines whether or not the PUCCH A / N transmission resource according to Equation 1 collides in an uplink subframe (S630). If it is determined that the PUCCH A / N transmission resources collide (YES in S630), the UE determines the PUCCH A / N transmission resources for the PDSCH of the SCell using a value of 2 bits in the CIF (S640).
  • the UE determines the PUCCH A / N transmission resources by using the first CCE index of the PDCCH of the SCell according to Equation 1 described above ( S650).
  • the terminal transmits the HARQ A / N for the PDSCH using the determined PUCCH A / N transmission resources (S660).
  • FIG. 7 is a flowchart illustrating a PUCCH A / N resource allocation method according to another embodiment.
  • the base station transmits a resource set for PUCCH format 3 to the terminal through higher layer signaling (S710).
  • the UE determines whether a PUCCH A / N transmission resource according to Equation 1 collides in an uplink subframe (S720).
  • the format of the PUCCH for transmitting PUCCH A / N is changed to PUCCH format 3
  • the resource of the switched PUCCH format 3 is determined using the information received through higher layer signaling (S730).
  • the UE determines the PUCCH A / N transmission resources using the first CCE index of the PDCCH according to Equation 1 described above ( S740).
  • the PUCCH transmission format may be 1 / 1a / 1b.
  • the terminal transmits HARQ A / N for PDSCH transmission using the determined PUCCH A / N transmission resource (S750).
  • FIG. 8 is a flowchart illustrating a HARQ A / N resource allocation method for a PDSCH according to another embodiment.
  • the base station transmits information on a PUCCH format 1 / 1a / 1b resource to a terminal through higher layer signaling (S810).
  • the UE determines the PUCCH A / N transmission resource by using the resource information received in step S810 (S820). That is, the UE does not determine the A / N transmission resource for the PDSCH using the resources of the PDCCH for transmitting the control information for the PDSCH, but the PUCCH A / N transmission resource by the information explicitly provided through higher layer signaling. Determine.
  • the terminal transmits the PUCCH A / N using the determined PUCCH A / N transmission resource (S830).
  • FIG. 9 is a block diagram illustrating a configuration of a terminal according to an embodiment.
  • the terminal 900 determines whether the PUCCH A / N transmission resource setting unit 910 for setting the PUCCH A / N transmission resources and the PUCCH A / N transmission resources collide with each other.
  • the PUCCH A / N transmission resource setting unit 910 may set the PUCCH A / N transmission resource based on the first index of the PDCCH according to Equation (1).
  • the PUCCHH A / N transmission resource collision determination unit 920 determines that the PUCCH A / N transmission resource in the PCell determined by Equation 1 and the PUCCH A / N transmission resource in the SCell determined by Equation 1 are uplink subframes. It is possible to determine whether they collide with each other.
  • the PUCCH A / N transmission resource collision determination unit 920 determines that the PUCCH A / N transmission resource in the PCell and the PUCCH A / N transmission resource in the SCell collide with each other in an uplink subframe, the PUCCH A / N The transmission resource setting unit 910 may reset the PUCCH A / N transmission resource of the SCell in another manner.
  • the PUCCH A / N transmission resource setting unit 910 may set the PUCCH A / N transmission resource by using the TPC field in the DCI as an ARI that designates the PUCCH A / N transmission resource of the SCell.
  • Information on the PUCCH A / N transmission resource corresponding to the value of the ARI may be provided in advance through higher layer signaling.
  • the PUCCH A / N transmission resource setting unit 910 may set a PUCCH A / N transmission resource of the SCell using a part (for example, 2 bits) of CIF (3 bits) in the DCI.
  • Information on the PUCCH A / N transmission resource corresponding to the value of the CIF may be provided in advance through higher layer signaling.
  • the resource PUCCH A / N transmission resource setting unit 910 may perform the PUCCH A / N transmission using the PUCCH format 3 and may set the transmission resource of the PUCCH format 3.
  • Information on the transmission resource of the PUCCH format 3 may be provided in advance through higher layer signaling.
  • the PUCCH A / N transmission resource setting unit 910 determines that the PUCCH A / N transmission resource collision resource determination unit 920 determines whether the resource collides with the PUCCH A / N transmission resource of the SCell. It is described as resetting. However, the PUCCH A / N transmission resource collision determination unit 920 is omitted, and the PUCCH A / N transmission resource setting unit 910 may set the PUCCH A / N transmission resources regardless of resource collision.
  • the PUCCH A / N transmission resource setting unit 910 sets the transmission resource of the PUCCH A / N of the PCell according to Equation 1, and the transmission resource of the PUCCH A / N of the SCell is the value of the above-described ARI, It is also possible to set based on the value of the CIF, resource allocation information of PUCCH format 3, or resource allocation information delivered through higher layer signaling.
  • the transmitter 930 transmits the PUCCH A / N through an uplink subframe through the resources set by the PUCCH A / N transmission resource setting unit 910.
  • FIG. 10 is a block diagram illustrating a configuration of a base station according to an embodiment.
  • the base station 1000 sets a mapping table including mapping information on PUCCH A / N transmission resources of a SCell in advance and transmits the preset information transmitting unit 1010 to transmit to a terminal through higher layer signaling. And a resource information transmitter 1020 for transmitting information for designating the PUCCH A / N transmission resource of the SCell to the terminal through the PDCCH using a mapping table.
  • the table transmitted to the terminal through the preset information transmitter 1010 may include an ARI using a TPC field in the DCI and a PDSCH transmission resource corresponding to the ARI.
  • the resource information transmitter 1020 may transmit a value for designating one set of PDSCH transmission resources in the table through the TPC field of the DCI for the PDSCH of the SCell.
  • the table transmitted to the terminal through the preset information transmitter 1010 may include a collection of serving cell information and PDSCH transmission resources corresponding to CFI and CFI in the DCI.
  • the resource information transmitter 1020 may transmit a value that designates one set of PDSCH transmission resources in the table through the CFI of the DCI for the PDSCH of the SCell.

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  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)
PCT/KR2013/002720 2012-04-27 2013-04-02 Procédé pour la mise en place de terminaux et de ressources de transmission de canal de commande de liaison montante destinées à des terminaux Ceased WO2013162185A1 (fr)

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