WO2014157948A1 - Appareil pour émettre des informations de commande et appareil pour recevoir des informations de commande - Google Patents

Appareil pour émettre des informations de commande et appareil pour recevoir des informations de commande Download PDF

Info

Publication number
WO2014157948A1
WO2014157948A1 PCT/KR2014/002565 KR2014002565W WO2014157948A1 WO 2014157948 A1 WO2014157948 A1 WO 2014157948A1 KR 2014002565 W KR2014002565 W KR 2014002565W WO 2014157948 A1 WO2014157948 A1 WO 2014157948A1
Authority
WO
WIPO (PCT)
Prior art keywords
subframe
control information
subframes
downlink control
field indicating
Prior art date
Application number
PCT/KR2014/002565
Other languages
English (en)
Korean (ko)
Inventor
김선우
Original Assignee
인텔렉추얼디스커버리 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020130048728A external-priority patent/KR20140118647A/ko
Priority claimed from KR1020130048822A external-priority patent/KR20140118648A/ko
Application filed by 인텔렉추얼디스커버리 주식회사 filed Critical 인텔렉추얼디스커버리 주식회사
Priority to US14/779,426 priority Critical patent/US20160057737A1/en
Publication of WO2014157948A1 publication Critical patent/WO2014157948A1/fr

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
    • H04B7/2656—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA] for structure of frame, burst

Definitions

  • the present invention relates to an apparatus for transmitting and receiving control information in a wireless communication system.
  • LTE Long Term Evolution
  • LTE-A LTE Advanced
  • 3GPP 3rd Generation Partenership
  • a time-frequency resource is a control region to which a control channel (eg, Physical Downlink Control CHannel) is allocated and a data region to which a data channel (eg, Physical Downlink Shared CHannel (PDSCH)) is allocated.
  • a control channel eg, Physical Downlink Control CHannel
  • PDSCH Physical Downlink Shared CHannel
  • Data may be transmitted through a data region other than the control region in time-frequency resources.
  • a method capable of efficiently transmitting control information and reducing the size of the control area may be required.
  • An object of the present invention is to provide an apparatus capable of efficiently transmitting control information to reduce the size of a control region and thus to expand the size of the data region.
  • the control unit for generating downlink control information (Downlink Control Information, DCI) for one or more subframes; And a transmitter for transmitting the downlink control information through a downlink control channel.
  • DCI Downlink Control Information
  • the downlink control channel for receiving downlink control information (Downlink Control Information, DCI); And a control unit for extracting control information of a downlink data channel located in at least one subframe or control information of an uplink data channel located in at least one subframe from the downlink control information.
  • DCI Downlink Control Information
  • the control unit for generating downlink control information (Downlink Control Information, DCI); And a transmitter for transmitting the downlink control information through a downlink control channel, wherein the downlink control information includes a field indicating a subframe in which a data channel to which the downlink control information is applied is located.
  • DCI Downlink Control Information
  • a base station Provided is a base station.
  • a receiver for receiving downlink control information (DCI) including a field indicating a subframe through a downlink control channel; And a controller for controlling a data channel of a subframe indicated by a field indicating the subframe based on the downlink control information.
  • DCI downlink control information
  • FIG. 1 illustrates a communication system to which embodiments of the present invention are applied.
  • FIG. 2 is a conceptual diagram of small cell scenarios.
  • FIG. 3 illustrates one of the small cell scenarios of FIG. 2.
  • 4 and 5 illustrate another one of the small cell scenarios of FIG. 2.
  • FIG. 6 illustrates another one of the small cell scenarios of FIG. 2.
  • FIG. 7 is a diagram for explaining a concept of scheduling through PDCCH.
  • FIG 8 is a diagram illustrating a concept of multi-subframe scheduling through a PDCCH according to an embodiment of the present invention.
  • FIG. 9 illustrates a concept of multi-subframe scheduling through EPDCCH according to another embodiment of the present invention.
  • FIG. 10 is a diagram for explaining a concept of cross-carrier / multi-subframe scheduling according to another embodiment of the present invention.
  • 11 is a flowchart illustrating a method for transmitting and receiving control information according to an embodiment of the present invention.
  • 16 and 17 illustrate a concept of cross-carrier / cross-subframe scheduling according to another embodiment of the present invention.
  • FIG. 18 is a block diagram showing the configuration of a base station according to an embodiment of the present invention.
  • FIG. 19 is a block diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
  • FIG. 1 illustrates a communication system to which embodiments of the present invention are applied.
  • Communication systems are widely deployed to provide various communication services such as voice, packet data, and the like.
  • a communication system includes a user equipment (UE) 10 and a base station 20 that performs uplink and downlink communication with the terminal 10.
  • UE user equipment
  • base station 20 that performs uplink and downlink communication with the terminal 10.
  • the terminal 10 or a user equipment is a comprehensive concept that means a user terminal in wireless communication.
  • UE user equipment
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • HSPA mobile station
  • GSM UT
  • SS subscriber station
  • wireless device a wireless device that includes a user terminal, a subscriber station (SS), and a wireless device.
  • the base station 20 or cell generally refers to a station communicating with the terminal 10, and includes a base station, a node-B, an evolved node-B, and a base transceiver system. ), An access point, a relay node, a remote radio head (RRH), and a radio unit (RU).
  • the base station 20 or a cell is to be interpreted in a comprehensive sense indicating some areas covered by a base station controller (BSC) in a CDMA, a NodeB of a WCDMA, and the like, and a radio remote head connected to the base station )
  • BSC base station controller
  • a comprehensive concept of any type of device capable of communicating with one terminal such as a relay node, a sector of a macro cell, a site, or a micro cell such as a femtocell or picocell. Used as
  • the terminal 10 and the base station 20 are used in a generic sense as a transmitting and receiving entity used to implement the technology or technical idea described in the present specification and are not limited to the terms or words specifically referred to.
  • 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.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • OFDM OFDM
  • the present invention is a combination of the TDD (Time Division Duplex) method is transmitted using a different time, uplink transmission and downlink transmission, FDD (Frequency Division Duplex) method is transmitted using a different frequency, combining the TDD and FDD Applicable to hybrid duplexing method.
  • TDD Time Division Duplex
  • FDD Frequency Division Duplex
  • embodiments of the present invention are applicable to asynchronous wireless communication that evolves into Long Term Evolution (LTE) and LTE-advanced through GSM, WCDMA, HSPA, and synchronous wireless communication that evolves into CDMA, CDMA-2000, and UMB.
  • LTE Long Term Evolution
  • WCDMA Long Term Evolution-advanced through GSM
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High Speed Packet Access
  • CDMA Code Division Multiple Access
  • CDMA-2000 Code Division Multiple Access-2000
  • UMB Universal Mobile Broadband
  • the terminal 10 and the base station 20 may perform uplink and downlink communications.
  • the base station 20 performs downlink transmission to the terminal 10.
  • the base station 20 may transmit a physical downlink shared channel (PDSCH), which is a primary physical channel for unicast transmission.
  • PDSCH physical downlink shared channel
  • the base station 20 grants scheduling control for transmission on downlink control information such as scheduling required for reception of the PDSCH and uplink data channel (for example, a physical uplink shared channel (PUSCH)).
  • a control channel such as a physical downlink control channel (PDCCH) or an extended physical downlink control channel (enhanced PDCCH, EPDCCH) for transmitting information may be transmitted.
  • PDCCH physical downlink control channel
  • EPDCCH extended physical downlink control channel
  • FIG. 2 is a conceptual diagram of small cell scenarios.
  • the small cell may be within the coverage of the macro cell or may be out of coverage. Meanwhile, the small cell may use a common channel with a macro cell (co-channel deployment) or frequency may be separated.
  • FIG. 3 illustrates one of the small cell scenarios of FIG. 2.
  • a common channel of a macro cell and a small cell may be used.
  • a small cell cluster may be considered.
  • the number of small cells may be denser than that of R10 eICIC and R11 FeICIC / CoMP.
  • the number of small cells per cluster, backhaul assumptions between small cells, and time synchronization between small cells may be specified.
  • the small cell scenario shown in FIG. 3 may be an outdoor type. Meanwhile, non-ideal backhaul between macro cell and small cell may be configured between the macro cell and the small cell. At this time, macro coverage may exist.
  • Coordination may or may not be performed between macro and small cells.
  • the ideal backhaul and the non-ideal backhaul may be configured between small cells in a small cell cluster or between a cluster of small cells and at least one macro cell (eNB).
  • Non-ideal backhaul may be considered for other interfaces.
  • Non-ideal backhaul means backhaul, not the fiber used to implement RRH (CPRI).
  • 4 and 5 illustrate another one of the small cell scenarios of FIG. 2.
  • the frequency of the macro cell and the small cell can be used to be separated.
  • a small cell cluster may be considered.
  • the number of small cells may be denser than that of R10 eICIC and R11 FeICIC / CoMP.
  • the number of small cells per cluster, backhaul assumptions between small cells, and time synchronization between small cells may be specified.
  • the small cell scenario shown in FIG. 4 may be Outdoor.
  • the small cell scenario shown in FIG. 5 may be indoor.
  • non-ideal backhaul between macro cell and small cell may be configured between the macro cell and the small cell.
  • macro coverage may exist.
  • Coordination may or may not be performed between macro and small cells.
  • the ideal backhaul and the non-ideal backhaul may be configured between small cells in a small cell cluster or between a cluster of small cells and at least one macro cell (eNB). Can be. Non-ideal backhaul may be considered for other interfaces.
  • FIG. 6 illustrates another one of the small cell scenarios of FIG. 2.
  • a small cell cluster may be considered.
  • the number of small cells may be denser than that of R10 eICIC and R11 FeICIC / CoMP.
  • the number of small cells per cluster may be specified.
  • the small cell scenario shown in FIG. 6 may be indoor. Dense and non-dense small cells (both sparse and dense small cells) may be considered.
  • scheduling for a downlink data channel (eg, PDSCH) or an uplink data channel (eg, PUSCH) may be performed through a PDCCH or an EPDCCH.
  • FIG. 7 is a diagram for explaining a concept of scheduling through PDCCH.
  • the PDCCH 201 may be used to transmit downlink control information such as scheduling required for reception of the PDSCH 202 which is a downlink data channel.
  • the PDCCH 201 may be used to transmit downlink control information for the PDSCH 202 located in the same subframe.
  • the PDCCH 203 may be used to transmit scheduling grant information required for transmission of the PUSCH 204, which is an uplink data channel.
  • scheduling grant information necessary for transmission of the PUSCH 204 located in the n + 4 subframe is transmitted through the PDCCH 203 located in the n subframe.
  • scheduling acknowledgment information necessary for transmission of the PUSCH 204 located in the n + k subframe is transmitted through the PDCCH 203 located in the n subframe, and the value of k corresponds to the TDD configuration and subframe number n).
  • FIG. 7 illustrates a PDCCH located in a control region
  • an EPDCCH located in a data region may also transmit downlink control information or uplink scheduling grant information in a similar manner.
  • control information for a plurality of subframes is transmitted through one control channel (PDCCH or EPDCCH).
  • PDCCH control channel
  • EPDCCH EPDCCH
  • FIG 8 is a diagram illustrating a concept of multi-subframe scheduling through a PDCCH according to an embodiment of the present invention.
  • the PDCCH 301 may be used to convey control information for two or more PDSCHs 302, 303, and 304 located in two or more subframes.
  • the two or more PDSCHs may include not only the PDSCH 302 located in the same subframe as the PDCCH 301 but also the PDSCHs 303 and 304 located in a subframe different from the PDCCH 301.
  • control information for two or more PDSCHs 302, 303, and 304 may be the same.
  • the PDCCH 305 may be used to convey control information for two or more PUSCHs 306, 307, and 308 located in two or more subframes.
  • Two or more PUSCHs are located in an uplink subframe (ie, n + 4 subframe for FDD and n + k subframe for TDD) related to the downlink subframe in which the PDCCH 305 is located.
  • it may include PUSCHs 307 and 308 located in an uplink subframe not related to the downlink subframe in which the PDCCH 305 is located.
  • control information for two or more PUSCHs 306, 307, and 308 may be the same.
  • FIG. 9 illustrates a concept of multi-subframe scheduling through EPDCCH according to another embodiment of the present invention.
  • the EPDCCH 401 may be used to convey control information for two or more PDSCHs 402, 403, and 404 located in two or more subframes.
  • the two or more PDSCHs may include not only the PDSCH 402 located in the same subframe as the EPDCCH 401 but also the PDSCHs 403 and 404 located in a subframe different from the EPDCCH 401.
  • control information for two or more PDSCHs 402, 403, and 404 may be the same.
  • the EPDCCH 405 may be used to convey control information for two or more PUSCHs 406, 407, and 408 located in two or more subframes.
  • Two or more PUSCHs are located in an uplink subframe (ie, n + 4 subframe for FDD and n + k subframe for TDD) related to the downlink subframe in which EPDCCH 405 is located.
  • it may include PUSCHs 407 and 408 located in an uplink subframe not related to the downlink subframe in which the EPDCCH 405 is located.
  • control information for two or more PUSCHs 406, 407, and 408 may be the same.
  • the terminal 10 and the base station 20 may communicate using a plurality of component carriers (CCs). That is, the terminal 10 and the base station 20 may communicate by using a primary cell (PCell) and one or more secondary cells (SCell).
  • CCs component carriers
  • PCell primary cell
  • SCell secondary cells
  • control information of another component carrier may be transmitted through PDCCH or EPDCCH of one component carrier, which may be referred to as cross-carrier scheduling.
  • the terminal may be used to separate the frequency from the macro cell and the small cell. That is, the component carrier with which the terminal and the macro cell communicate with each other and the component carrier with which the terminal and the small cell communicate may be different.
  • the terminal and the macro cell may communicate through the PCell, and the terminal and the small cell may communicate through the SCell.
  • downlink control information may be received only from the macro cell through the PCell, and the small cell may be used only for data transmission through the SCell. In this case, when the small cell transmits only data through the SCell, the control region may not be set in the SCell.
  • FIG. 10 is a diagram for explaining a concept of cross-carrier / multi-subframe scheduling according to another embodiment of the present invention.
  • the PDCCH 501 of the PCell may be used to convey control information for two or more PDSCHs 502, 503, and 504 located in two or more subframes of the SCell.
  • the two or more PDSCHs may include not only the PDSCH 502 located in the same subframe as the PDCCH 501 but also the PDSCHs 503 and 504 located in a subframe different from the PDCCH 501.
  • control information for two or more PDSCHs 502, 503, and 504 may be the same.
  • the PDCCH 505 of the PCell may be used to convey control information for two or more PUSCHs 506, 507, 508 located in two or more subframes of the SCell.
  • Two or more PUSCHs are located in an uplink subframe (ie, n + 4 subframe for FDD and n + k subframe for TDD) related to the downlink subframe in which the PDCCH 505 is located.
  • it may include PUSCHs 507 and 508 located in an uplink subframe not related to the downlink subframe in which the PDCCH 505 is located.
  • control information for two or more PUSCHs 506, 507, and 508 may be the same.
  • the macro cell transmits control information to the terminal through the PDCCHs 501 and 505 of the PCell, and the small cell transmits data to the terminal through the PDSCHs 502, 503 and 504 of the SCell and PUSCH ( Data may be received from the terminal through 506, 507, 508.
  • the SCell may be a structure in which a control area for a control channel is not allocated and only a data area exists.
  • control information conveyed through the PCell is illustrated as for the data channel (PDSCH or PUSCH) of the SCell, but the present invention is not limited thereto.
  • control information delivered through one SCell may be for a data channel of another SCell.
  • control information is illustrated as being transmitted through the PDCCH in FIG. 10, this is merely an example, and control information may be transmitted through the EPDCCH.
  • downlink control information (DCI) transmitted through a PDCCH or an EPDCCH may include a field indicating one or more subframes.
  • the field indicating one or more subframes may be in a bitmap format for indicating a subframe to which downlink control information is applied among a plurality of subframes.
  • the field indicating one or more subframes may be a value indicating the number of subframes to which downlink control information is applied.
  • a plurality of patterns for subframes to which downlink control information is applied may be determined according to a preset rule, and a field indicating one or more subframes may be a value indicating one of a plurality of patterns.
  • the macro cell transmits downlink control information including a field indicating one or more subframes to the terminal, and the small cell transmits data through one or more subframes determined by a field indicating one or more subframes. It can be transmitted to the terminal.
  • a plurality of patterns for subframes to which downlink control information is applied are determined through higher layer signaling such as RRC (Radio Resource Control), and a field indicating one or more subframes indicates one of a plurality of patterns.
  • RRC Radio Resource Control
  • the macro cell transmits a plurality of patterns to the terminal through RRC signaling, and transmits downlink control information including a value indicating one of the plurality of patterns to the terminal, and the small cell is determined to the indicated pattern Data may be transmitted to the terminal through one or more subframes.
  • the downlink control information may include a field indicating a component carrier (eg, a channel indication field (CIF)) and a field indicating one or more subframes. have.
  • a component carrier eg, a channel indication field (CIF)
  • CIF channel indication field
  • some of the values of the field indicating the component carrier are used to indicate the component carrier and one subframe (that is, when no multi-subframe is applied), and the other part is used to indicate the component carrier and the plurality of subframes. Can be used to indicate.
  • the CIF may indicate up to eight cases as three bits and five cases may be used to indicate the component carrier, the remaining three may be used for multi-subframe scheduling.
  • Table 1 below shows an example in which three bits of CIF are used for component carrier and multi-subframe scheduling.
  • values 000-100 of the CIF indicate one CC and one subframe
  • values 101-111 of the CIF indicate one CC and a plurality of subframes.
  • CIF may indicate up to 16 cases as 4 bits, 5 cases may be used to indicate component carriers, and the remaining 11 may be used for multi-subframe scheduling.
  • the value 0000-0100 of the CIF indicates one CC and one subframe
  • the value 0101-1111 of the CIF indicates one CC and a plurality of subframes.
  • Tables 1 and 2 are provided for purposes of illustration, and alternatively the CIF may indicate component carrier and / or multi-subframe.
  • the number of subframes to which one downlink control information is applied may be determined semi-statically through higher layer signaling such as RRC.
  • the downlink control information may be transmitted in a cycle of the determined number of subframes. For example, when one downlink control information is applied to three subframes, the downlink control information is transmitted in three subframe periods, and the UE decodes PDCCH or EPDCCH in three subframe periods to control downlink. Information can be extracted.
  • the macro cell transmits information on the period and offset of the subframe in which the downlink control information is transmitted to the terminal to the terminal through the RRC, and downlink through the PDCCH or EPDCCH located in the subframe determined by the period and offset
  • the link control information is transmitted to the terminal, and the small cell may transmit data to the terminal on a periodic basis.
  • 11 is a flowchart illustrating a method for transmitting and receiving control information according to an embodiment of the present invention.
  • the base station generates a DCI for one or more subframes (S1110).
  • the DCI may include a field indicating one or more subframes.
  • the field indicating one or more subframes may be in a bitmap format for indicating a subframe to which downlink control information is applied among a plurality of subframes.
  • the field indicating one or more subframes may be a value indicating the number of subframes to which downlink control information is applied.
  • a plurality of patterns for subframes to which downlink control information is applied may be determined according to a preset rule, and a field indicating one or more subframes may be a value indicating one of a plurality of patterns.
  • the macro cell transmits downlink control information including a field indicating one or more subframes to the terminal, and the small cell transmits data through one or more subframes determined by a field indicating one or more subframes. It can be transmitted to the terminal.
  • a plurality of patterns for subframes to which downlink control information is applied are determined through higher layer signaling such as RRC (Radio Resource Control), and a field indicating one or more subframes indicates one of a plurality of patterns.
  • RRC Radio Resource Control
  • the macro cell transmits a plurality of patterns to the terminal through RRC signaling, and transmits downlink control information including a value indicating one of the plurality of patterns to the terminal, and the small cell is determined to the indicated pattern Data may be transmitted to the terminal through one or more subframes.
  • the downlink control information may include a field indicating a component carrier (eg, a channel indication field (CIF)) and a field indicating one or more subframes. have.
  • a component carrier eg, a channel indication field (CIF)
  • CIF channel indication field
  • some of the values of the field indicating the component carrier are used to indicate the component carrier and one subframe (that is, when no multi-subframe is applied), and the other part is used to indicate the component carrier and the plurality of subframes. Can be used to indicate.
  • the number of subframes to which one downlink control information is applied may be determined semi-statically through higher layer signaling such as RRC.
  • the downlink control information may be transmitted in a cycle of the determined number of subframes. For example, when one downlink control information is applied to three subframes, the downlink control information is transmitted in three subframe periods, and the UE decodes PDCCH or EPDCCH in three subframe periods to control downlink. Information can be extracted.
  • the macro cell transmits information on the period and offset of the subframe in which the downlink control information is transmitted to the terminal to the terminal through the RRC, and downlink through the PDCCH or EPDCCH located in the subframe determined by the period and offset
  • the link control information is transmitted to the terminal, and the small cell may transmit data to the terminal on a periodic basis.
  • the base station transmits the generated DCI to the terminal (S1120), the terminal receiving the DCI extracts control information of PDSCH or PUSCH located in one or more subframes (S1130), and the terminal extracts The downlink data is received through the PDSCH using the control information or the uplink data is transmitted through the PUSCH (S1140).
  • 12 and 13 illustrate a concept of cross-subframe scheduling through PDCCH according to another embodiment of the present invention.
  • 12 illustrates downlink cross-subframe scheduling
  • FIG. 13 illustrates uplink cross-subframe scheduling.
  • the PDCCH 601 located in the subframe n is used to transmit control information for the PDSCH 603 located in the subframe n, which is the same subframe, and the PDCCH 602 is another subframe. It is used to convey control information for the PDSCH 604 located in subframe m.
  • the PDCCH 605 located in the subframe n is allocated to an uplink subframe associated with the downlink subframe n (that is, n + 4 subframe for FDD and n + k subframe for TDD). It is used to convey control information for the located PUSCH 607.
  • the PDCCH 606 is used to convey control information for the PUSCH 608 located in an uplink subframe not related to the downlink subframe n.
  • FIG. 14 and 15 illustrate a concept of cross-subframe scheduling through EPDCCH according to another embodiment of the present invention.
  • FIG. 14 illustrates downlink cross-subframe scheduling
  • FIG. 15 illustrates uplink cross-subframe scheduling.
  • the EPDCCH 701 located in the subframe n is used to transmit control information for the PDSCH 703 located in the subframe n, which is the same subframe, and the EPDCCH 702 is another subframe. It is used to convey control information for the PDSCH 704 located in subframe m.
  • the EPDCCH 705 located in the subframe n is assigned to an uplink subframe associated with the downlink subframe n (that is, n + 4 subframe for FDD and n + k subframe for TDD). It is used to convey control information for the location PUSCH 707.
  • EPDCCH 706 is used to convey control information for PUSCH 708 located in an uplink subframe that is not associated with downlink subframe n.
  • the terminal 10 and the base station 20 may communicate using a plurality of component carriers (CCs). That is, the terminal 10 and the base station 20 may communicate by using a primary cell (PCell) and one or more secondary cells (SCell).
  • CCs component carriers
  • PCell primary cell
  • SCell secondary cells
  • control information of another component carrier may be transmitted through PDCCH or EPDCCH of one component carrier, which may be referred to as cross-carrier scheduling.
  • the UE may use the macro cell and the small cell to separate the frequency. That is, the component carrier with which the terminal and the macro cell communicate with each other and the component carrier with which the terminal and the small cell communicate may be different.
  • the terminal and the macro cell may communicate through the PCell, and the terminal and the small cell may communicate through the SCell.
  • the downlink control information may be received only from the macro cell through the PCell, and the small cell may be used only for data transmission through the SCell. In this case, when the small cell transmits only data through the SCell, the control region may not be set in the SCell.
  • FIG. 16 and 17 illustrate a concept of cross-carrier / cross-subframe scheduling according to another embodiment of the present invention.
  • FIG. 16 illustrates downlink cross-carrier / cross-subframe scheduling
  • FIG. 17 illustrates uplink cross-carrier / cross-subframe scheduling.
  • the PDCCHs 801 and 802 of the PCell may be used to carry control information for the PDSCHs 803 and 804 of the SCell.
  • the PDCCH 801 located in subframe n in the PCell is used to transmit control information for the PDSCH 803 located in subframe n, which is the same subframe in the SCell, and the PDCCH ( 803 is used to convey control information for the PDSCH 804 located in subframe m, which is another subframe in the SCell.
  • the PDCCHs 805 and 806 of the PCell may be used to convey control information for the PUSCHs 807 and 808 of the SCell.
  • the PDCCH 805 located in subframe n in the PCell is located in an uplink subframe associated with the downlink subframe n in the SCell (that is, n + 4 subframe for FDD and n + k subframe for TDD). It is used to convey control information for the PUSCH 807.
  • the PDCCH 806 located in subframe n in the PCell is used to convey control information for the PUSCH 808 located in an uplink subframe not related to the downlink subframe n in the SCell.
  • the macro cell transmits control information to the terminal through the PDCCHs 801, 802, 805, and 806 of the PCell, and the small cell transmits data to the terminal through the PDSCHs 803 and 804 of the SCell. It can transmit and receive data from the terminal through the PUSCH (807, 808).
  • the SCell may be a structure in which a control area for a control channel is not allocated and only a data area exists.
  • control information conveyed through the PCell is illustrated as for the data channel (PDSCH or PUSCH) of the SCell, but the present invention is not limited thereto.
  • control information delivered through one SCell may be for a data channel of another SCell.
  • control information is transmitted through the PDCCH, this is only an example, and control information may be transmitted through the EPDCCH.
  • DCI transmitted through PDCCH or EPDCCH may include a field indicating a subframe.
  • a field indicating a subframe may be a value indicating a difference between a subframe in which a PDCCH is located and a subframe in which a PDSCH is indicated by the PDCCH.
  • the value of the field indicating the subframe may be a value indicating the number of downlink subframes from the subframe in which the PDSCH is located.
  • the value of the field indicating the subframe may be "0".
  • a field indicating a subframe may be an uplink subframe associated with a downlink subframe in which the PDCCH is located (that is, n + 4 subframe for FDD and n + k sub for TDD). Frame) and a subframe in which the PUSCH indicated by the PDCCH is located.
  • the value of the field indicating the subframe may be a value indicating the number of uplink subframes from the uplink subframe associated with the downlink subframe in which the PUSCH is located.
  • a plurality of patterns for a subframe to which downlink control information is applied are determined according to a preset rule, and a field indicating a subframe may be a value indicating one of the plurality of patterns.
  • the macro cell transmits downlink control information including a field indicating one or more subframes to the terminal, and the small cell through one or more subframes determined by a field indicating one or more subframes. Data can be transmitted to the terminal.
  • a plurality of patterns for a subframe to which downlink control information is applied are determined through higher layer signaling such as RRC (Radio Resource Control), and a field indicating a subframe may be one of a plurality of patterns. It may be an indicating value.
  • the macro cell transmits a plurality of patterns to the terminal through RRC signaling, and transmits downlink control information including a value indicating one of the plurality of patterns to the terminal, and the small cell is determined to the indicated pattern Data may be transmitted to the terminal through one or more subframes.
  • the downlink control information may include a field indicating a component carrier (eg, a channel indication field (CIF)) and a field indicating a subframe.
  • a component carrier eg, a channel indication field (CIF)
  • some of the values of the field indicating the component carrier may be used for multi-subframe scheduling.
  • the CIF may indicate up to eight cases as three bits and five cases may be used to indicate the component carrier, the remaining three may be used for cross-subframe scheduling.
  • Table 3 below shows an example in which 3 bits of CIF are used for component carrier and cross-subframe scheduling.
  • a value 000-100 of a CIF indicates a subframe (subframe 0) associated with control information including one CC and a CIF, and values 101-111 of the CIF include one CC and a CIF. It indicates a subframe 1 that is not related to the control information.
  • the CIF may indicate up to 16 cases as 4 bits, 5 cases may be used to indicate component carriers, and the remaining 11 may be used for cross-subframe scheduling.
  • the value 0000-0100 of the CIF indicates a subframe (subframe 0) associated with control information including one CC and the CIF, and the values 0101-1111 of the CIF include one CC and the CIF. Indicates subframes (subframe 1 and subframe 2) not related to the control information.
  • subframe 0 indicates a subframe related to control information including CIF.
  • subframe 0 may be the same subframe as the subframe in which the control information including the CIF is transmitted.
  • subframe 0 is an uplink subframe associated with a downlink subframe in which control information including CIF is truncated (that is, n + 4 subframe for FDD and n + k subframe for TDD). May be).
  • Tables 3 and 4 are provided for purposes of illustration, and in other ways the CIF may indicate component carrier and / or cross-subframe.
  • FIG. 18 is a block diagram showing the configuration of a base station according to an embodiment of the present invention.
  • a base station 1800 includes a controller 1810, a transmitter 1820, and a receiver 1830.
  • the controller 1810 controls the overall operation of the base station according to the multi-subframe scheduling required to perform the above-described present invention.
  • the transmitter 1820 and the receiver 1830 are used to transmit and receive signals, messages, and data necessary for carrying out the present invention.
  • FIG. 19 is a block diagram illustrating a configuration of a terminal according to an embodiment of the present invention.
  • a user terminal 1900 includes a receiver 1910, a controller 1920, and a transmitter 1930.
  • the receiver 1910 receives downlink control information, data, and a message from a base station through a corresponding channel.
  • controller 1920 controls the overall operation of the terminal according to the multi-subframe scheduling required to perform the above-described present invention.
  • the transmitter 1930 transmits uplink control information, data, and a message to a base station through a corresponding channel.

Landscapes

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

Abstract

La présente invention porte sur un procédé et un appareil pour planifier une émission de liaison descendante ou de liaison montante dans une pluralité de sous-trames à travers un canal de commande afin de réduire un surdébit de canal de commande.
PCT/KR2014/002565 2013-03-27 2014-03-26 Appareil pour émettre des informations de commande et appareil pour recevoir des informations de commande WO2014157948A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/779,426 US20160057737A1 (en) 2013-03-27 2014-03-26 Apparatus for transmitting control information and apparatus for receiving control information

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
KR20130032724 2013-03-27
KR10-2013-0032710 2013-03-27
KR10-2013-0032724 2013-03-27
KR20130032710 2013-03-27
KR1020130048728A KR20140118647A (ko) 2013-03-27 2013-04-30 제어 정보의 전송 장치, 및 제어 정보의 수신 장치
KR10-2013-0048822 2013-04-30
KR1020130048822A KR20140118648A (ko) 2013-03-27 2013-04-30 제어 정보의 전송 장치, 및 제어 정보의 수신 장치
KR10-2013-0048728 2013-04-30

Publications (1)

Publication Number Publication Date
WO2014157948A1 true WO2014157948A1 (fr) 2014-10-02

Family

ID=51624813

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/KR2014/002565 WO2014157948A1 (fr) 2013-03-27 2014-03-26 Appareil pour émettre des informations de commande et appareil pour recevoir des informations de commande

Country Status (1)

Country Link
WO (1) WO2014157948A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110105050A1 (en) * 2009-11-02 2011-05-05 Qualcomm Incorporated Cross-carrier/cross-subframe indication in a multi-carrier wireless network
WO2012108679A2 (fr) * 2011-02-08 2012-08-16 엘지전자 주식회사 Procédé et dispositif de programmation dans un système à agrégation de porteuses
WO2012150823A2 (fr) * 2011-05-05 2012-11-08 엘지전자 주식회사 Procédé de réception d'un signal de liaison descendante, dispositif utilisateur, procédé d'émission d'un signal de liaison descendante, et station de base associée
US20120320840A1 (en) * 2010-01-06 2012-12-20 Lg Electronics Inc. Method and device for sending data via cross-carrier scheduling in wireless communication system supporting plurality of component carriers
WO2013015652A2 (fr) * 2011-07-28 2013-01-31 엘지전자 주식회사 Procédé destiné à l'émission-réception de données dans un système d'accès sans fil et station de base et terminal conçus pour ce procédé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110105050A1 (en) * 2009-11-02 2011-05-05 Qualcomm Incorporated Cross-carrier/cross-subframe indication in a multi-carrier wireless network
US20120320840A1 (en) * 2010-01-06 2012-12-20 Lg Electronics Inc. Method and device for sending data via cross-carrier scheduling in wireless communication system supporting plurality of component carriers
WO2012108679A2 (fr) * 2011-02-08 2012-08-16 엘지전자 주식회사 Procédé et dispositif de programmation dans un système à agrégation de porteuses
WO2012150823A2 (fr) * 2011-05-05 2012-11-08 엘지전자 주식회사 Procédé de réception d'un signal de liaison descendante, dispositif utilisateur, procédé d'émission d'un signal de liaison descendante, et station de base associée
WO2013015652A2 (fr) * 2011-07-28 2013-01-31 엘지전자 주식회사 Procédé destiné à l'émission-réception de données dans un système d'accès sans fil et station de base et terminal conçus pour ce procédé

Similar Documents

Publication Publication Date Title
WO2014051293A1 (fr) Procédé et appareil d'ajustement de décodage aveugle dans un canal de commande de liaison descendante
WO2016108584A1 (fr) Procédés et appareils d'accès au canal sur la liaison montante et transmissions pour lte sur spectre non autorisé
WO2013012190A2 (fr) Procédé et appareil permettant de limiter une sous-trame en liaison descendante dans un mode tdd
WO2015065048A1 (fr) Procédé et appareil pour commander un rapport d'informations d'état de canal (csi) periodique
WO2018043960A1 (fr) Procédé et dispositif de transmission et de réception de données dans un réseau sans fil de prochaine génération
WO2010013980A2 (fr) Procédé d'affectation de ressources pour liaison terrestre et liaison d'accès dans un système de communication sans fil comprenant un relais
WO2010039011A2 (fr) Procédé et dispositif d'attribution de ressources de sous-trames sans fil
WO2014116071A1 (fr) Procédé et appareil pour transmission de canal de contrôle dans un système d'agrégation de porteuses intracellulaire
WO2010013962A2 (fr) Station relais et son procédé de fonctionnement dans un système de communication radio
WO2013005970A2 (fr) Procédé et appareil d'émission et de traitement d'informations de commande dans un système de duplexage par répartition dans le temps utilisant des composantes porteuses multiples
WO2018093180A1 (fr) Procédé et appareil d'émission et de réception de données de commande de liaison montante dans un réseau sans fil de prochaine génération
WO2015050339A1 (fr) Procédé d'émission et de réception d'un canal de commande en liaison descendante, et appareil associé
WO2014171754A1 (fr) Procédé et appareil permettant la transmission et la réception d'informations de commande en liaison descendante
WO2013125897A1 (fr) Procédés et appareils de réception ou d'émission de signal de liaison descendante dans une sous-trame mbsfn
WO2015046830A1 (fr) Procédé d'émission-réception d'un canal de données de liaison descendante et appareil associé
WO2018080274A1 (fr) Procédé et dispositif d'émission-réception d'un canal de données dans un réseau sans fil de la prochaine génération
WO2011126279A2 (fr) Procédé permettant de transmettre dans une grande mesure un signal de référence d'estimation de canal et procédé et dispositif permettant de transmettre et de recevoir un signal de référence d'estimation de canal en utilisant ce procédé
WO2015020477A1 (fr) Procédé et appareil pour commander une synchronisation de requête automatique de répétition hybride (harq) de liaison descendante dans un environnement de transmission bilatérale simultanée à répartition dans le temps (tdd)
WO2011129632A2 (fr) Procédé de commande d'émission apériodique d'un signal de commande, et procédé et appareil d'émission-réception de signal de commande utilisant le procédé
WO2019194574A1 (fr) Procédé et appareil pour la prise en charge d'une opération de relais pour urllc dans un système de communication sans fil
WO2015046831A1 (fr) Procédé d'attribution de ressources de canal de commande en liaison descendante d'un terminal et appareil associé
WO2018080212A2 (fr) Procédé et dispositif de planification de canal de commande de liaison montante dans un réseau sans fil de nouvelle génération
WO2016010276A1 (fr) Procédé de traitement de retransmission de données et appareil associé
WO2013024987A2 (fr) Procédé de commande d'émission srs au niveau d'une extrémité d'émission, extrémité d'émission associée, procédé d'émission srs d'un terminal et terminal associé
WO2016013779A1 (fr) Procédé de réception d'informations de programmation de cellule de spectre sans licence, et dispositif associé

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14775575

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 14779426

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14775575

Country of ref document: EP

Kind code of ref document: A1