WO2011074817A2 - Procédé pour configurer une ressource, procédé d'émission-réception de données dans la ressource configurée et appareil permettant la mise en oeuvre dudit procédé dans un système de communication sans fil - Google Patents

Procédé pour configurer une ressource, procédé d'émission-réception de données dans la ressource configurée et appareil permettant la mise en oeuvre dudit procédé dans un système de communication sans fil Download PDF

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Publication number
WO2011074817A2
WO2011074817A2 PCT/KR2010/008687 KR2010008687W WO2011074817A2 WO 2011074817 A2 WO2011074817 A2 WO 2011074817A2 KR 2010008687 W KR2010008687 W KR 2010008687W WO 2011074817 A2 WO2011074817 A2 WO 2011074817A2
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WIPO (PCT)
Prior art keywords
resource block
block group
aggregated
information
transmitting
Prior art date
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Ceased
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PCT/KR2010/008687
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English (en)
Korean (ko)
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WO2011074817A3 (fr
Inventor
홍성권
권기범
김기태
박경민
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Pantech Co Ltd
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Pantech Co Ltd
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Priority claimed from KR1020100123240A external-priority patent/KR20110068854A/ko
Application filed by Pantech Co Ltd filed Critical Pantech Co Ltd
Priority to US13/515,662 priority Critical patent/US20120269152A1/en
Publication of WO2011074817A2 publication Critical patent/WO2011074817A2/fr
Publication of WO2011074817A3 publication Critical patent/WO2011074817A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • 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
    • H04L5/0042—Intra-user or intra-terminal allocation
    • 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
    • H04L5/0091—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/02—Selection of wireless resources by user or terminal

Definitions

  • the present invention relates to a wireless communication system and a method for configuring a resource, a method for transmitting and receiving data in a configured resource, and an apparatus therefor.
  • the present invention relates to a wireless communication system, and to provide a method and apparatus for aggregating resource block groups included in one or more CCs.
  • the present invention provides a method for configuring resources by collecting resource blocks included in at least one component carrier in a wireless communication system, transmitting and receiving data from the configured resources, and a terminal and a base station using the same.
  • the present invention also provides a method and apparatus for enabling efficient resource configuration by grouping resource block groups of at least one component carrier in a component carrier aggregation configuration in a wireless communication system.
  • the present invention also provides a resource configuration method and apparatus for simplifying the implementation of backward compatibility in the component carrier aggregation configuration in a wireless communication system.
  • the present invention also provides a method and apparatus for configuring resources for enabling simple configuration of a control channel for component carrier aggregation in a wireless communication system.
  • the present invention provides a method and apparatus for configuring resources that can reduce the blind decoding complexity of a terminal for decoding a downlink control channel.
  • a method of transmitting and receiving data by configuring a radio resource is a method for transmitting and receiving data by a base station in a wireless communication system, the resource block groups included in at least one element carrier Selecting one or more resource block groups to generate an aggregated resource block group, transmitting configuration information of the generated aggregated resource block group to a user terminal, and configuring the aggregated resource block group to the user terminal And allocating resources to transmit and receive data to and from the user terminal in the allocated resources, wherein the aggregated resource block group configuration information includes an element carrier indicator.
  • a method for transmitting and receiving data in a radio resource includes receiving configuration information of an aggregate resource block group from a base station in a method of transmitting and receiving data by a terminal in a wireless communication system, and receiving the aggregate resource from the base station. And allocating resources according to the configuration of the block group, and transmitting and receiving data to and from the base station through one or more resources in the aggregated resource block group, wherein the aggregated resource block group configuration information includes an element carrier indicator. It is characterized by.
  • An apparatus for transmitting and receiving data by configuring a radio resource is a base station apparatus for transmitting and receiving data in a wireless communication system, and includes one or more resource block groups among resource block groups included in one or more CCs.
  • a collective resource block group generation unit for selecting and generating an aggregate resource block group, a resource allocating unit for allocating resources to the user terminal according to the configuration of the aggregate resource block group, and configuration information of the generated aggregate resource block group
  • a transmitting / receiving unit transmitting and receiving data to and from the user terminal in a resource allocated by the resource allocator and the resource allocation group, wherein the aggregated resource block group configuration information includes a component carrier indicator.
  • An apparatus for transmitting and receiving data in a radio resource is a terminal device for transmitting and receiving data in a wireless communication system, which receives configuration information of an aggregate resource block group from a base station and transmits and receives data with the base station. And a transmitter / receiver, an aggregated resource block group information storage unit configured to store configuration information of the aggregated resource block group received from the base station, and a controller configured to control the transceiver to transmit and receive data in an allocated resource according to the configuration information.
  • the aggregated resource block group configuration information may include a component carrier indicator.
  • the carrier aggregation configuration in the wireless communication system there is an effect that can simplify the implementation of the backward compatibility (Backward Compatibility).
  • backward Compatibility backward compatibility
  • FIG. 1 is a diagram schematically illustrating a wireless communication system providing a method for configuring resources according to an embodiment of the present invention.
  • FIG. 2 is a diagram illustrating carrier aggregation for at least one component carrier used in a wireless communication system to provide a resource configuration method according to an embodiment of the present invention.
  • FIG. 3 is a diagram illustrating a configuration of an aggregate resource block group for a resource configuration method according to an embodiment of the present invention.
  • FIG. 4 is a flowchart illustrating an operation of a base station for a method for configuring resources through configuration of an aggregated resource block group for downlink in a method for configuring resources according to an embodiment of the present invention.
  • FIG. 5 is a flowchart illustrating an operation of a terminal for a resource configuration method through configuration of an aggregated resource block group for downlink in a resource configuration method according to an embodiment of the present invention.
  • FIG. 6 is a flowchart illustrating an operation of a base station for a method for configuring resources through configuration of an aggregated resource block group for uplink in a method for configuring resources according to an embodiment of the present invention.
  • FIG. 7 is a flowchart illustrating an operation of a terminal for a resource configuration method through configuration of an aggregate resource block group for uplink in a resource configuration method according to an embodiment of the present invention.
  • FIG. 8 is a diagram illustrating an example of number allocation when configuring an aggregate resource block group according to an embodiment of the present invention.
  • 9 is another exemplary diagram of number assignment when configuring an aggregate resource block group according to an embodiment of the present invention.
  • FIG. 10 is a diagram illustrating independent HARQ operation for each carrier for the configuration of an aggregated resource block group according to an embodiment of the present invention.
  • 11 is a configuration example of an aggregated resource block group in the configuration of a compatible carrier and an extended carrier in the configuration of an aggregated resource block group according to an embodiment of the present invention.
  • FIG. 12 is a diagram illustrating a structure of a base station for transmitting and receiving data to and from a user terminal by creating an aggregate resource block group according to an embodiment of the present specification.
  • FIG. 13 is a diagram illustrating a structure of a user terminal for transmitting and receiving data to and from a base station by allocating resources to an aggregate resource block group according to an embodiment of the present specification.
  • a wireless communication system is a system for providing 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).
  • UE user equipment
  • BS base station 20
  • Terminal 10 is a generic concept that means a user terminal in wireless communication, WCDMA and UE (User Equipment) in LTE, Long Term Evolution (LTE), HSPA, etc., as well as MS (Mobile Station) in GSM It should be interpreted as a concept that includes a user terminal (UT), a subscriber station (SS), and a wireless device.
  • WCDMA and UE User Equipment
  • LTE Long Term Evolution
  • HSPA High Speed Packet Access
  • MS Mobile Station
  • a base station 20 or a cell generally refers to a fixed station communicating with the terminal 10 and includes a Node-B, an evolved Node-B, and a Base Transceiver. It may be called other terms such as System, Access Point.
  • the base station 20 is referred to as an eNB.
  • the eNB 20 or the cell should be interpreted in a comprehensive sense indicating some areas covered by BS (Base Station) in CDMA, Node-B in WCDMA, and the like.
  • the term encompasses various coverage areas such as cell, picocell, and femtocell.
  • the terminal 10 and the eNB 20 are two (uplink or downlink) transmission and reception subjects used to implement the technology or the technical idea described in the present invention, which are used in a generic sense and are specifically referred to in terms or words. It is not limited by.
  • the uplink refers to a method of transmitting and receiving data to the eNB 20 by the terminal 10
  • the downlink refers to a method of transmitting and receiving data to the terminal 10 by the eNB 20. Means.
  • multiple access scheme applied to the wireless communication system in the present invention. That is, various multiple accesses such as code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access (FDMA), orthogonal frequency division multiple access (OFDMA), OFDM-FDMA, OFDM-TDMA, and OFDM-CDMA Techniques can be used to apply the invention.
  • CDMA code division multiple access
  • TDMA time division multiple access
  • FDMA frequency division multiple access
  • OFDMA orthogonal frequency division multiple access
  • OFDM-FDMA OFDM-FDMA
  • OFDM-TDMA OFDM-TDMA
  • OFDM-CDMA OFDM-CDMA Techniques can be used to apply the invention.
  • 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
  • LTE-A Long-Term Evolution-Advanced
  • GSM Global System for Mobile communications
  • WCDMA Long-Term Evolution-Advanced
  • HSPA High Speed Packet Access
  • CDMA-2000 High Speed Packet Access-2000
  • Resource allocation such as in the field of synchronous wireless communications evolving to 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.
  • Uplink and downlink transmit control information through control channels such as Physical Downlink Control CHannel (PDCCH), Physical Control Format Indicator CHannel (PCFICH), Physical Hybrid ARQ Indicator CHannel (PHICH), and Physical Uplink Control CHannel (PUCCH).
  • a data channel is configured such as PDSCH (Physical Downlink Shared CHannel), PUSCH (Physical Uplink Shared CHannel) and the like to transmit data.
  • LTE-A a standard based on a single carrier in LTE is discussed, and a combination of several bands having a band smaller than 20 MHz is discussed, while a component carrier band having a band above 20 MHz is discussed. have.
  • the discussion of multi-carrier aggregation in LTE-A is basically made by considering backward compatibility as much as possible based on the LTE standard, and up to 5 carriers are considered in uplink and downlink.
  • this carrier aggregation how to configure the expansion of the control channel and how to configure the data channel as the number of carriers increases.
  • the maximum of five carriers is increasing in number in accordance with the request of the quality of service.
  • At least one carrier or carrier pair in uplink and downlink is called an anchor carrier or a primary cell or a serving cell or a special cell, which is initially set by the UE. It is a carrier that accesses to and receives security and authentication information and controls for subsequent multicarrier aggregation.
  • uplink ACK / Negative Acknowledgment (ACKnowledgement / Negative ACKnowledgement) and CQI (hereinafter referred to as “CQI”)
  • CQI CQI
  • PMI Precoding Matrix Indicators, hereinafter referred to as "PMI”
  • RI Rank Indicator, hereinafter referred to as "RI”
  • the CQI / PMI / RI information is formed by various methods through a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH), which are uplink control channels.
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • FIG. 2 is a diagram illustrating carrier aggregation for at least one component carrier used in a wireless communication system to provide a resource configuration method according to an embodiment of the present invention.
  • the wireless communication system may have a carrier aggregation configuration using at least one component carrier (CC).
  • CC component carrier
  • DL CCs downlink component carriers
  • UL CC uplink component carriers
  • Uplink Component Carrier may have a carrier aggregation configuration as shown in FIG. In this case, there may be an asymmetric situation where the number of uplink component carriers and downlink component carriers are different from each other. That is, M and N may have different values.
  • each of the M downlink component carriers has a downlink data channel for data transmission, and some or all of the M downlink component carriers have a downlink control channel for transmission of control information.
  • each of the N uplink component carriers has an uplink data channel for data transmission, and some or all of the N uplink component carriers have an uplink control channel for transmission of control information.
  • the configuration of the downlink data channel and the uplink data channel may be configured based on a resource block group (RBG) including one or more resource blocks (RBs) having a two-dimensional configuration of time and frequency.
  • the downlink control channel may be a PDCCH or the like, and the downlink data channel may be a PDSCH or the like.
  • the uplink control channel mentioned above may be a PUCCH or the like, and the uplink data channel may be a PUSCH or the like. This can be applied to all embodiments of the present invention below.
  • the wireless communication system 100 connects a resource block group (RBG) existing in at least one component carrier while using at least one component carrier.
  • RBG resource block group
  • Resource Block Group perform resource allocation according to the configuration information of the aggregated resource block group.
  • the aggregated resource block group may include one or more resource block groups including one or more resource blocks.
  • the resource block group includes a resource block (RB), a physical resource block (PRB), and a resource block group (RBG), which are defined in 3rd Generation Partnership Project (3GPP) LTE / LTE-A as an example.
  • Resource block unit consisting of a frequency-time interval (two dimensions of time and frequency).
  • the data channel may be configured based on a resource block group.
  • Control information regarding user-specific and service-specific allocation of resources is determined at a higher layer than a physical layer of a serving eNB and is transmitted and operated through a control channel.
  • the aggregated resource block group may be connected by connecting an intra-carrier resource block group or by connecting an inter-carrier resource block group. Can be configured. That is, two or more resource block groups included in the aggregated resource block group may be connected to exist in the same CC or at least one of the two or more resource block groups included in the aggregated resource block group may be connected to and exist in another CC. .
  • FIG. 3 is a diagram illustrating a configuration of an aggregate resource block group for a resource configuration method according to an embodiment of the present invention.
  • resource block group 1 (RBG 1-1) in downlink component carrier 1, resource block group 1 (RBG 2-1) and resource block group 2 (RBG 2 in downlink component carrier 2). -2) and a resource block group 1 (RBG M-1) in the downlink component carrier M may be connected to form one aggregated resource block group.
  • resource block group 3 (RBG 2-3) in downlink component carrier 2 is not connected to a resource block group existing in downlink component carrier 2 or other downlink component carriers.
  • One aggregate resource block group may be formed.
  • the number of resource block groups of each component carrier of the carrier aggregation may be the same for each carrier set, but may be configured differently. This is because resource characteristics of the channel of each component carrier may vary from terminal to terminal.
  • the aggregation of groups need not be configured to collect uniformly for each component carrier.
  • the entire CC may be defined as one resource block group.
  • the divided resource block groups are divided into downlink and uplink, respectively.
  • the operation of the eNB 20 and the terminal 10 in the series of wireless communication system 100 including the configuration of the aggregated resource block group for each of the downlink and uplink, and resource allocation and data transmission and reception accordingly This will be described with reference to FIGS. 4 to 7.
  • FIG. 4 is an operation flowchart of the eNB 20
  • FIG. 5 is an operation flowchart of the terminal 10.
  • FIG. 4 is a flowchart illustrating an operation of an eNB for a method for configuring resources through configuration of an aggregated resource block group for downlink in a method for configuring resources according to an embodiment of the present invention.
  • the eNB 20 uses uplink control channel (eg, uplink channel information used for configuring the aggregated resource block group for the downlink). It receives from the terminal 10 through the PUCCH (S400).
  • uplink control channel eg, uplink channel information used for configuring the aggregated resource block group for the downlink. It receives from the terminal 10 through the PUCCH (S400).
  • the eNB 20 may determine the variability of the received uplink channel information and the SNR (Signal-to-Noise Ratio, SNR) value or MCS (Modulation and Coding Scheme, hereinafter “MCS”) value.
  • SNR Signal-to-Noise Ratio
  • MCS Modulation and Coding Scheme, hereinafter “MCS” value.
  • the aggregated resource block group is configured by connecting some resource block groups of all resource block groups present in at least one component carrier for downlink (S402).
  • the eNB 20 receives uplink channel information such as a channel quality indicator (CQI), a precoding matrix indicator (PMI), a rank indicator (RI), and the like.
  • Aggregation of resource block groups may be performed by comparing variability and levels to form an aggregate resource block group.
  • an aggregate resource block group may be formed by concatenating (collecting) similar resource block groups in a predetermined range where the variability of channel information is similarly slow in a defined range and a level of an SNR value or an MCS value is defined.
  • the variation of channel information may be similarly fast in a defined range, and similar resource block groups may be concatenated (collected) to form another aggregate resource block group in a predetermined range in which a level of an SNR value or an MCS value is defined. Can be.
  • the eNB 20 adds one or more information such as quality of service (QoS) request, fairness, maximization of downlink total capacity, and downlink control channel blind decoding capability.
  • QoS quality of service
  • a downlink aggregation resource block group may be configured by connecting some resource block groups among all resource block groups present in at least one component carrier for downlink.
  • the eNB 20 transmits configuration information of the aggregated resource block group for the downlink to the terminal 10 through a downlink control channel (eg, PDCCH) (S404). ).
  • a downlink control channel eg, PDCCH
  • Resource allocation for the downlink data channel (eg, PDSCH) is performed based on the configuration information of the aggregated resource block group for the downlink (S406). At this time, the resource allocation information for the downlink data channel (eg PDSCH) may be transmitted to the terminal 10 through the downlink control channel (eg PDCCH).
  • the downlink control channel eg PDCCH
  • the eNB 20 transmits data to the terminal 10 through a downlink data channel (eg, PDSCH) based on the resource allocation information for the downlink (S408). That is, downlink resource allocation configures and transmits a downlink data channel (eg, PDSCH) in accordance with the configuration of the aggregated resource block group for the downlink described above.
  • a downlink data channel eg, PDSCH
  • the eNB 20 may receive a report on whether there is an abnormality in resource allocation from the terminal 10 (S410). In this case, the eNB 20 may proceed with the reconfiguration of the aggregated resource block group in consideration of the report. For example, an existing aggregate resource block group may be released, a new aggregate resource block group may be formed, or the aggregate resource block group itself may be abandoned. In connection with forming a new aggregated resource block group, the eNB 20 reconfigures all aggregated resource block groups for resource allocation abnormality, or allocates only those aggregated resource block groups with abnormal resource allocation. You can also reconfigure and allocate resources.
  • the resource allocation information may be included in a downlink control information (DCI) message carried by the PDCCH and transmitted.
  • DCI downlink control information
  • FIG. 5 is a flowchart illustrating an operation of a terminal for a resource configuration method through configuration of an aggregated resource block group for downlink in a resource configuration method according to an embodiment of the present invention.
  • the terminal 10 measures uplink channel information, which is information necessary for this, so that an aggregate resource block group for downlink can be configured in the eNB 20 and then an uplink control channel (eg, PUCCH). Transmit to the eNB 20 via (S500). Accordingly, the eNB 20 configures the aggregated resource block group for the downlink, and the base station transmits the configuration information of the aggregated resource block group for the downlink.
  • uplink control channel eg, PUCCH
  • the terminal 10 receives the configuration information of the aggregated resource group for the downlink from the eNB (S502), and the data received through the downlink data channel (eg PDSCH) based on the configuration information of the aggregated resource block group. Decode (S504).
  • the terminal 10 compares the decoding performance value with a predefined expectation value, senses whether there is an abnormality in resource allocation according to the configuration of the aggregated resource block group, and reports it to the eNB 20 according to the comparison result (S506). Accordingly, the eNB 20 may release the existing aggregated resource block group, form a new aggregated resource block group, or give up the aggregated resource block group itself in view of the report.
  • the aggregated resource block group configured in the wireless communication system 100 is an aggregated resource block group for uplink according to an example of the present invention
  • the configuration of the aggregated resource block group for uplink and accordingly Resource configuration methods for resource allocation for a link and data transmission and reception through these resource configuration methods will be described.
  • FIG. 6 is a flowchart illustrating an operation of an eNB for a method for configuring resources through configuration of an aggregated resource block group for uplink in a method for configuring resources according to an embodiment of the present invention.
  • the eNB 20 may include a reference signal of a data channel (eg, PUSCH) and a control channel (eg, PUCCH) received through uplink.
  • Channel information is extracted from (S600).
  • the eNB 20 links the resource block groups of some of all resource block groups present in at least one CC for uplink with reference to the variability of the extracted channel information and the level of the SNR value or the MCS value.
  • An aggregate resource block group for uplink is configured (S602).
  • the eNB 20 minimizes performance degradation of an uplink data channel (eg, PUSCH) and minimizes performance degradation of the uplink data channel (eg, PDCCH). If it is determined that there is a benefit in grant decoding of resource allocation for a PUSCH, the aggregation of resource block groups is determined to form an aggregated resource block group for uplink, and the configuration information about this is transmitted to the terminal 10. Transmit (S604). That is, when the aggregated resource block group for the uplink is configured, the eNB 20 transmits configuration information of the aggregated resource block group configured for the uplink to the terminal 10 through a downlink control channel (eg, PDCCH). (S604).
  • a downlink control channel eg, PDCCH
  • the eNB 20 performs resource allocation for the uplink data channel (eg, PUSCH) based on the configuration information of the aggregated resource block group for the uplink (S606). That is, an uplink data channel (eg PUSCH) grant is configured on a downlink control channel (eg PDCCH) DCI. At this time, the resource allocation information for the uplink data channel (eg PUSCH) may be transmitted to the terminal 10 through the downlink control channel (eg PDCCH). The eNB 20 may receive data from the terminal 10 through an uplink data channel (eg, PUSCH) based on resource allocation information for the uplink data channel (eg, PUSCH) (S608).
  • an uplink data channel (eg, PUSCH) grant is configured on a downlink control channel (eg PDCCH) DCI.
  • the resource allocation information for the uplink data channel (eg PUSCH) may be transmitted to the terminal 10 through the downlink control channel (eg PDCCH).
  • the eNB 20 may
  • the above-mentioned resource allocation information may be included in a DCI message used for transmission of a resource grant for an uplink data channel (eg, PUSCH) and transmitted through a downlink control channel (eg, PDCCH).
  • a DCI message used for transmission of a resource grant for an uplink data channel (eg, PUSCH) and transmitted through a downlink control channel (eg, PDCCH).
  • FIG. 7 is a flowchart illustrating an operation of a terminal for a resource configuration method through configuration of an aggregate resource block group for uplink in a resource configuration method according to an embodiment of the present invention.
  • the terminal 10 may be configured according to the configuration information of the aggregated resource block group in the eNB 20 described above.
  • the terminal 10 receives configuration information of the aggregated resource block group for the uplink configured in the eNB 20 from the eNB (S700), and applies the configuration information of the aggregated resource block group for the uplink.
  • the downlink control channel eg, PDCCH
  • S702 the downlink control channel
  • the terminal 10 may transmit data through an uplink data channel (for example, PUSCH) (S704).
  • the configuration information of the aggregated resource block group may include information indicating the location of the aggregated resource block group, and the information indicating the position of the aggregated resource block group is transmitted to the aggregated resource block group using the same CC indicator.
  • a number assigned to the aggregated resource block group may be included using an assigned number or another CC indicator.
  • the numbering of the aggregated resource block group may use the same component carrier indicator or different component carrier indicators.
  • FIG. 8 an example of assigning a number to an aggregated resource block group by using the same CC indicator is shown in FIG. 8, and an example of assigning a number to an aggregated resource block group using another CC indicator is shown in FIG. 9.
  • the UE 10 In connection with the numbering of the aggregated resource block group, there may be several methods for indicating the location of the allocated resource block group in the PDCCH in the carrier.
  • the UE 10 is informed of the location of the resource block group allocated in the following three ways with respect to the number of the predetermined resource block groups as a constant field in the DCI format in the PDCCH.
  • the first method is a method in which one bit represents an allocation state of one resource block group and a location of an allocated resource block group in the entire resource block group in a constant length bit string.
  • the second method collects and classifies resource block groups having a predetermined interval from all resource block groups and allocates resource block groups only.
  • the third method is indexing for all possible number of start and end resource block groups in a carrier.
  • FIG. 8 is a diagram illustrating an example of number allocation when configuring an aggregate resource block group according to an embodiment of the present invention.
  • FIG. 8 it shows a case in which a component carrier A having 10 resource block groups and a carrier B having 5 resource block groups are connected.
  • the resource block groups 0, 2 and 5 in the carrier A are respectively the resource block groups 1, 3 and 4 in the carrier B, respectively.
  • three aggregated resource block groups such as A0-B1, A2-B3 and A5-B4 are configured, and resource block groups 8 and 9 on carrier A are connected within carrier A, such as A8-A9. Aggregated resource block group is configured.
  • A1, A3, A4, A6, A7, B0 and B2 are seven aggregate resource block groups composed of one resource block group.
  • the numbering of these 11 aggregated resource block groups can be assigned a number as shown in FIG.
  • () represents the number of the aggregated resource block group. Numbering shown in FIG. 8 may be configured based on the following criteria.
  • numbers may be assigned in the order of CCs having the largest number of resource block groups among CCs forming the aggregated resource block group.
  • the number of the aggregated resource block group may be assigned according to the existing number of the CC as a reference.
  • numbers may be assigned to element carriers having a small number of resource block groups in order. At this time, an already assigned resource block group may be excluded from numbering.
  • 11 aggregate resource blocks can be obtained for 15 resource block groups, and the location of the aggregated resource blocks can be represented in the same manner as in the existing resource allocation indexing method.
  • the PDCCH is transmitted for each CC and the CC can be configured to indicate the CC to which resources are allocated in the DCI format in the PDCCH.
  • the field indicating these instructions is defined as a component carrier indicator.
  • the connected CCs may be considered as one CC group and may use the same CC indicator.
  • the group RB is assigned to belong to one CC indicator selected from the CCs.
  • An aggregated resource block group e.g., A1, A3, A4, A6, A7 resource block group on carrier A, and B0 and B2 resource block group on carrier B
  • the component carrier indicator of the component carrier to which it belongs can be used. This numbering is shown in FIG.
  • 9 is another exemplary diagram of number assignment when configuring an aggregate resource block group according to an embodiment of the present invention.
  • (0) and (1) in A (0) and B (1) mean component carrier indicators, respectively.
  • the numbering of the aggregated resource block group is based on A (0), and the aggregated resource block group (e.g., 0 in element carrier B) which belongs to component carrier B and consists of only one resource block group.
  • the aggregated resource block group composed of the resource block group and the aggregated resource block group composed of the second resource block group) are independently numbered by using (1) which is the component carrier indicator of component carrier B.
  • FIG. 10 is a diagram illustrating independent HARQ operation for each carrier for the configuration of an aggregated resource block group according to an embodiment of the present invention.
  • the HARQ operation is independently performed for each component carrier. That is, the information blocks of the terminal 10, that is, the UE, are separated and transmitted in a transport block form for each carrier, and the receiving end transmits and receives a decoding successor for each carrier.
  • the receiving end transmits and receives a decoding successor for each carrier.
  • resource allocation is performed in the form of an aggregate resource block group, resources are allocated based on the aggregated resource block group to which the resource block group is connected, but transport blocks may be transmitted separately by carrier. That is, as shown in FIG. 10, an independent HARQ operation for each carrier may be configured.
  • an extension carrier that does not have a downlink control channel (PDCCH) in the component carrier and additionally provides resources by extension of another carrier.
  • PDCCH downlink control channel
  • An example of an extended carrier configuration may be used. That is, such an extended carrier configuration may provide an efficient means for providing resource allocation of an extended carrier that is managed by control information of a component carrier having a downlink control channel (PDCCH) and provides additional resources.
  • the component carrier in the carrier aggregation configuration using a plurality of component carriers, can be divided into a compatible carrier and a non-compatible carrier, which divides compatibility and incompatibility.
  • Standard is LTE Rel. Is it compatible with 8.
  • Resource allocation by an aggregate resource block group can be applied regardless of compatibility in this division, but it is a resource allocation method that enables a compatible carrier and an extended carrier to be used together. That is, the existing LTE Rel. It is possible to form the carrier aggregation by adopting the standard of 8 almost as it is and adding an extended carrier so that the existing LTE implementation result can be used as it is.
  • Carrier aggregation of this type has the advantage of reducing the cost and period for the development and verification, and at the same time the cost and period for standardization work in terms of implementation.
  • FIG. 11 illustrates an example of a configuration of an aggregated resource block group in the configuration of a compatible carrier and an extended carrier in the configuration of an aggregated resource block group according to an embodiment of the present invention.
  • resource allocation of a compatible carrier is performed from a PDCCH of a compatible carrier, and resource allocation of an extended carrier may be performed by control information in a downlink control channel (PDCCH) of a connected compatible carrier.
  • PDCH downlink control channel
  • the eNB 20 configures an aggregated resource block group by connecting resource block groups present in at least one element carrier used in the wireless communication system 100 and performs resource allocation according to the configuration information of the aggregated resource block group. can do.
  • the eNB 20 transmits configuration information of the aggregated resource block group to the terminal 10 through a downlink control channel, Resource allocation for the downlink data channel is performed based on the configuration information, and resource allocation information is transmitted to the terminal 10 through the downlink control channel, and data is transmitted through the downlink data channel based on the resource allocation information. Transmit to terminal 10.
  • the eNB 20 transmits configuration information of the aggregated resource block group to the terminal 10 through a downlink control channel, Resource allocation for the uplink data channel is performed based on the configuration information, and the resource allocation information is transmitted to the terminal 10 through the downlink control channel, and the data is transmitted through the uplink data channel based on the resource allocation information. Received from (10).
  • the aggregated resource block group includes one or more resource block groups, in particular, when the aggregated resource block group includes two or more resource block groups, two or more resource block groups included in the aggregated resource block group are the same elements. At least one of two or more resource block groups included in the carrier or in the aggregate resource block group may be present in and connected to another component carrier.
  • the terminal 10 receives, from the eNB 20, configuration information of an aggregated resource block group configured by linking resource block groups present in at least one component carrier used in the wireless communication system 100. Data may be transmitted and received with the eNB 20 according to the configuration information of the aggregated resource block group.
  • the terminal 10 receives and decodes data through a downlink data channel based on the configuration information of the aggregated resource block group.
  • the terminal 10 analyzes the downlink control channel based on the configuration information of the aggregated resource block group, and uplink according to the analysis result. Send data through the data channel.
  • FIG. 12 is a diagram illustrating a structure of an eNB for transmitting and receiving data to and from a user terminal by creating an aggregate resource block group according to an embodiment of the present specification.
  • the configuration of an eNB includes an aggregated resource block group generator 1210, a resource allocator 1220, and a transceiver 1230.
  • the aggregated resource block group generation unit 1210 generates an aggregated resource block group by selecting one or more resource block groups among the resource block groups included in one or more element carriers, and the resource allocator 1220 generates the aggregated resource block group in the user terminal. Allocates resources according to the organization of aggregate resource block groups.
  • the transceiver 1230 transmits the generated configuration information of the aggregated resource block group to the user terminal, and transmits and receives data with the user terminal in the resource allocated by the resource allocator.
  • the transceiver 1230 receives uplink channel information from the user terminal, and the aggregated resource block group generator 1210 receives the received information.
  • the aggregated resource block group is generated using one or more of variability of uplink channel information, signal-to-noise ratio (SNR) value, or modulation and coding scheme (MCS).
  • SNR signal-to-noise ratio
  • MCS modulation and coding scheme
  • the transceiver 1230 receives a report on whether there is a resource allocation error from the user terminal, and when there is an error in resource allocation, the aggregated resource block group generation unit 1210 may reconfigure the aggregated resource block group.
  • the aggregated resource block group generation unit 1210 extracts uplink channel information allocated to the user terminal to determine the variability of the uplink channel information, signal-to-noise ratio (SNR) value, or MCS (Modulation) of the extracted information. and Coding Scheme) to generate the aggregated resource block group.
  • SNR signal-to-noise ratio
  • MCS Modulation
  • FIG. 13 is a diagram illustrating a structure of a user terminal for transmitting and receiving data to and from an eNB by allocating resources to an aggregate resource block group according to an embodiment of the present specification.
  • a configuration of a user terminal includes a controller 1310, an aggregate resource block group information storage unit 1320, and a transceiver 1330.
  • the transceiver 1330 receives configuration information of the aggregated resource block group from the eNB and transmits and receives data with the eNB, and the aggregated resource block group information storage unit 1320 is configured to receive the configuration information of the aggregated resource block group from the eNB. Save it.
  • the controller 1310 controls the transceiver 1330 to transmit and receive data in the allocated resource according to the configuration information.
  • the controller 1310 controls uplink channel information to transmit the measured information to the transceiver to transmit to the eNB.
  • the controller 1310 may determine whether there is a resource allocation error, and control the transceiver 1330 to transmit a report on whether there is a resource allocation error to the eNB.

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

Abstract

La présente invention concerne un système de communication sans fil, un procédé pour configurer une ressource, un procédé pour émettre-recevoir des données dans la ressource configurée et un appareil permettant la mise en oeuvre de ce procédé. Le procédé selon l'invention consiste à sélectionner un ou plusieurs groupes de blocs de ressources parmis les groupes de blocs de ressources contenus dans au moins une ou plusieurs porteuses de composants de manière à générer un groupe de blocs de ressources agrégés; puis à attribuer les ressources en fonction de la configuration du groupe de blocs de ressources agrégés et à émettre-recevoir les données. Les informations concernant le groupe de blocs de ressources agrégés contient un indicateur de porteuse de composants.
PCT/KR2010/008687 2009-12-15 2010-12-07 Procédé pour configurer une ressource, procédé d'émission-réception de données dans la ressource configurée et appareil permettant la mise en oeuvre dudit procédé dans un système de communication sans fil Ceased WO2011074817A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US13/515,662 US20120269152A1 (en) 2009-12-15 2010-12-07 Method for configuring a resource, method for transceiving data in the configured resource, and apparatus for same in a wireless communication system

Applications Claiming Priority (4)

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KR20090124442 2009-12-15
KR10-2009-0124442 2009-12-15
KR10-2010-0123240 2010-12-06
KR1020100123240A KR20110068854A (ko) 2009-12-15 2010-12-06 무선통신 시스템에서의 자원 구성 방법과 구성된 자원에서의 데이터 송수신 방법 및 이를 위한 장치

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018209285A1 (fr) * 2017-05-12 2018-11-15 Qualcomm Incorporated Affectation de commande de liaison descendante à l'aide de groupes de ressources à agrégation de porteuses

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US6333936B1 (en) * 1998-04-29 2001-12-25 Telefonaktiebolaget Lm Ericsson (Publ) Method and apparatus for allocating processing resources
CN104639306B (zh) * 2007-03-19 2019-04-16 Lg电子株式会社 移动通信系统中资源分配及传输/接收资源分配信息的方法
KR100913099B1 (ko) * 2008-01-07 2009-08-21 엘지전자 주식회사 분산형 가상자원블록 스케쥴링 방법

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018209285A1 (fr) * 2017-05-12 2018-11-15 Qualcomm Incorporated Affectation de commande de liaison descendante à l'aide de groupes de ressources à agrégation de porteuses
KR20200006532A (ko) * 2017-05-12 2020-01-20 퀄컴 인코포레이티드 캐리어 집성 자원 그룹들을 사용한 다운 링크 제어 할당
US10880067B2 (en) 2017-05-12 2020-12-29 Qualcomm Incorporated Downlink control allocation using carrier aggregation resource groups
KR102300980B1 (ko) 2017-05-12 2021-09-09 퀄컴 인코포레이티드 캐리어 집성 자원 그룹들을 사용한 다운 링크 제어 할당

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