WO2013133374A1 - Mobile station - Google Patents

Mobile station Download PDF

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Publication number
WO2013133374A1
WO2013133374A1 PCT/JP2013/056280 JP2013056280W WO2013133374A1 WO 2013133374 A1 WO2013133374 A1 WO 2013133374A1 JP 2013056280 W JP2013056280 W JP 2013056280W WO 2013133374 A1 WO2013133374 A1 WO 2013133374A1
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Prior art keywords
mobile station
combination
carrier
frequency band
bandwidth
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PCT/JP2013/056280
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French (fr)
Japanese (ja)
Inventor
佑太 寒河江
高橋　秀明
アニール ウメシュ
耕平 清嶋
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株式会社エヌ・ティ・ティ・ドコモ
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Publication of WO2013133374A1 publication Critical patent/WO2013133374A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present invention relates to a mobile station.
  • the mobile station UE can perform CA with a single radio base station eNB using a plurality of “Component Carriers (CC)” in different frequency bands at the same time. It is configured as follows.
  • the mobile station UE sets one of a plurality of CCs as a PCC (Primary Component Carrer) and the other as a SCC (Secondary Component Carrer) in response to an instruction from the radio base station. ) Is configured to set as.
  • PCC Primary Component Carrer
  • SCC Secondary Component Carrer
  • the mobile station UE is included in the “Supported CC Bandwidth Combinations” that it supports in the “Band Combination” that it supports.
  • the mobile station UE is included in the “Supported CC Bandwidth Combinations” that it supports in the “Band Combination” that it supports.
  • the mobile station UE when the mobile station UE is operated with a combination of CC bandwidths that are not targeted, the PDSCH (Physical Downlink Shared Channel, physical downlink sharing) is used in the specific frequency band. There is a possibility that downlink data transmitted via the channel) cannot be received.
  • the PDSCH Physical Downlink Shared Channel, physical downlink sharing
  • the present invention has been made in view of the above-described problem, and when CA is operated in a specific frequency band, as a combination of CC bandwidths included in the combination of the corresponding frequency bands, Even if the operation is performed with a combination of non-CC bandwidths, it is possible to appropriately receive a downlink data signal transmitted via the PDSCH in a state where CA is performed in the specific frequency band.
  • the purpose is to provide a station.
  • the first feature of the present invention is used in a mobile communication system in which a combination of frequency bands in which CA can be performed and a combination of carrier bandwidths in the frequency band in which CA can be performed are defined.
  • a combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined.
  • the mobile station supports at least one of the combinations of carrier bandwidths in the plurality of frequency bands, the mobile station corresponds to the radio base station. It is configured to notify the maximum amount of data that can be processed within a predetermined period in the mobile station, not a combination of carrier bandwidths in the frequency band.
  • a transmitting unit comprises a transmitting unit.
  • the second feature of the present invention is used in a mobile communication system in which a combination of frequency bands in which CA can be performed and a combination of carrier bandwidths in the frequency band in which CA can be performed is defined.
  • a combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined.
  • the carrier in the first frequency band or the second frequency band is to include a receiving unit configured to receive a signal in the entire bandwidth of the main carrier of the carriers.
  • FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
  • FIG. 2 is a functional block diagram of the mobile station according to the first embodiment of the present invention.
  • FIG. 3 is a diagram for explaining an example of a combination of CAs that can be realized in the mobile communication system according to the first embodiment of the present invention.
  • FIG. 4 is a diagram for explaining functions of the receiving unit of the mobile station according to the first embodiment of the present invention.
  • FIG. 5 is a functional block diagram of the radio base station according to the first embodiment of the present invention.
  • FIG. 6 is a diagram for explaining the operation of the mobile station according to the first embodiment of the present invention.
  • the mobile communication system according to the present embodiment is an LTE-Advanced mobile communication system.
  • the mobile station UE can transmit and receive signals to and from the radio base station eNB by simultaneously using the CC of the frequency band F1 and the CC of the frequency band F2. That is, it is comprised so that CA can be performed.
  • the CC of the frequency band F1 is set as “PCC” and the CC of the frequency band F2 is set as “SCC” for the mobile station UE. It shall be.
  • the mobile station UE includes a management unit 11, a transmission unit 12, and a reception unit.
  • the management unit 11 is configured to manage a combination of frequency bands that the mobile station UE corresponds to among combinations of frequency bands that can perform CA (“E-UTRA Band Combination” illustrated in FIG. 3). .
  • the management unit 11 includes a combination of CC bandwidths within a frequency band in which CA can be performed in a combination of frequency bands supported by the mobile station UE ("Supported CC Bandwidth Combinations" illustrated in FIG. 3).
  • the mobile station UE is configured to manage a combination of corresponding bandwidths.
  • E-UTRA Band Combination and “Supported CC Bandwidth Combinations” may be defined as shown in FIG.
  • a plurality of “Supported CC Bandwidth Combinations” can be defined for one “E-UTRA Band Combination”.
  • the management unit 11 has a combination of “E-UTRA Band # 5” and “E-UTRA Band # 1” as “E-UTRA Band Combination” supported by the mobile station UE (“5, shown in FIG. 3). 1 ”) may be managed.
  • the management unit 11 sets “Supported CC Bandwidth Combinations” supported by the mobile station UE in the downlink as “10 MHz” in “E-UTRA Band # 5” and “10 MHz in“ E-UTRA Band # 1 ”. ”(“ DL: 10 + 10 ”shown in FIG. 3) may be managed.
  • the management unit 11 may be configured to manage the same combination as the downlink as “Supported CC Bandwidth Combinations” that the mobile station UE supports in the uplink.
  • the transmission unit 12 is configured to transmit various signals to the radio base station eNB with which the mobile station UE is communicating.
  • the transmission unit 12 when the mobile station UE supports at least one of “Supported CC Bandwidth Combinations” defined in the mobile communication system according to the present embodiment, the transmission unit 12 Thus, instead of “Supported CC Bandwidth Combinations” supported by the mobile station UE, the mobile station UE is configured to notify the maximum amount of data that can be processed within a predetermined period.
  • the predetermined period may be a predetermined number (for example, one) subframes or a predetermined number (for example, one) TTI (Transmission Time Interval).
  • the transmission unit 12 may be configured to notify the number of resource blocks as the above-described maximum data amount.
  • the transmission unit 12 may be configured to notify the maximum data amount by a predetermined bit in “UE Capability (capability information)”.
  • the receiving unit 13 is configured to receive various signals from the radio base station eNB with which the mobile station UE is communicating.
  • the receiving unit 13 is configured to receive control information including scheduling information, broadcast information, downlink data, and the like from the radio base station eNB.
  • the receiving unit 12 supports at least one of “Supported CC Bandwidth Combinations” defined in the mobile communication system according to the present embodiment, “E-UTRA Band # 5” or “ It is configured to receive signals in the entire bandwidth of the PCC in “E-UTRA Band # 1”.
  • the mobile station UE transmits “Supported CC Bandwidth Combinations” as “Supported CC Bandwidth Combinations” as “10 MHz” and “E-UTRA Band # 1” in “E-UTRA Band # 5”.
  • the CC in “E-UTRA Band # 1” is set as the “PCC” for the mobile station UE even when the combination of “10 MHz” in “ CC with a bandwidth of “10 MHz” is used in “E-UTRA Band # 5”, and a CC with a bandwidth of “20 MHz” is used in “E-UTRA Band # 1”.
  • the receiving unit 13 receives the “E-UT in which PCC is set. It is configured to receive signals in the entire band width of the "20MHz” the CC in A Band # 1 ".
  • the receiving unit 13 may be configured to receive control information including scheduling information via the PDCCH in the entire bandwidth of the PCC.
  • the receiving unit 13 may be configured to receive broadcast information in the entire bandwidth of the PCC.
  • the mobile station UE can receive the total of the downlink data size transmitted in the PCC and the downlink data size transmitted in the SCC.
  • the maximum data size may be configured to receive downlink data via the PDSCH.
  • CC in “E-UTRA Band # 5” is set as “PCC” for the mobile station UE, and “E-UTRA Band # 1” is set as “SCC”. Let us consider a case in which the CC is set.
  • a CC with a bandwidth of “10 MHz” is used in “E-UTRA Band # 5”
  • a CC with a bandwidth of “20 MHz” is used in “E-UTRA Band # 1”.
  • the receiving unit 13 of the mobile station UE that can handle a bandwidth of “20 MHz” can receive downlink data via the PDSCH on the CC (SCC) in the “E-UTRA Band # 1”.
  • the radio base station eNB includes a reception unit 21, a scheduling unit 22, and a transmission unit 23.
  • the receiving unit 21 is configured to receive various signals from the mobile station UE in communication with the radio base station eNB.
  • the receiving unit 21 is configured to receive the above-described “UE Capability” or the like from the mobile station UE.
  • the scheduling unit 22 is configured to perform scheduling processing for the mobile station UE.
  • the scheduling unit 22 may be configured to perform scheduling processing for the mobile station UE based on the above-described maximum data amount (for example, the number of resource blocks) acquired from the mobile station UE.
  • the scheduling unit 22 allocates resources for transmitting downlink data up to the bandwidth corresponding to the mobile station UE in the PCC of the mobile station UE, and allocates resources for transmitting the remaining downlink data in the SCC of the mobile station UE. It may be configured to allocate.
  • the scheduling unit 22 determines the CC bandwidth that the mobile station UE can receive based on the maximum transmission rate determined based on the “UE Category” of the mobile station UE and the MCS (Modulation and Coding Scheme) used for transmission. And scheduling processing may be performed based on the bandwidth.
  • MCS Modulation and Coding Scheme
  • the scheduling unit 22 may allocate the total so as to have a maximum width of 20 MHz.
  • the transmission unit 23 is configured to transmit various signals to the mobile station UE in communication with the radio base station eNB.
  • the transmission unit 23 transmits scheduling information of downlink data in the Pcell (PCC serving cell) and the Scell (SCC serving cell) to the mobile station UE via the PDCCH on the PCC of the mobile station UE. It may be configured as follows.
  • the transmission unit 23 is configured to transmit broadcast information (MIB (Master Information Block), SIB (System Information Block), etc.) on the PCC of the mobile station UE to the mobile station UE. It may be.
  • MIB Master Information Block
  • SIB System Information Block
  • the transmission part 23 may be comprised so that the alerting
  • the transmission unit 23 is configured to transmit downlink data to the mobile station UE via the PDSCH based on the result of the above scheduling process on the PCC and SCC of the mobile station UE. May be.
  • step S101 the mobile station UE receives the above-described control information and broadcast information in the entire bandwidth of the CC set as the PCC of the mobile station UE.
  • step S102 the mobile station UE receives downlink data via PDSCH on the PCC or SCC based on the control information and broadcast information.
  • the mobile station UE can perform the radio base station even when the CC bandwidth capable of performing CA in a specific frequency band is expanded.
  • the eNB By notifying the eNB of the maximum amount of data that can be processed in the mobile station UE during a predetermined period, it is possible to prompt the eNB to perform an appropriate scheduling process. Therefore, transmission is performed via the PDSCH in such a specific frequency band. Can be appropriately received.
  • the mobile station UE includes a CC band included in the “Supported CC Bandwidth Combinations” that it supports in the “Band Combination” that it supports. Even when operated with a CC having a bandwidth larger than the bandwidth, since it is configured to receive the entire bandwidth of the PCC, control information and broadcast information can be received in the PCC. CA can be performed.
  • the first feature of the present embodiment is that a combination of frequency bands capable of performing CA (E-UTRA Band Combination) and a combination of CC bandwidths within a frequency band capable of performing CA (Supported CC Bandwidth).
  • the radio base station eNB is notified of the maximum amount of data that can be processed within a predetermined period in the mobile station UE, not the combination of CC bandwidths in the frequency band supported by the mobile station UE
  • the gist of the present invention is to include a transmission unit 12 configured to do so.
  • the transmission unit 12 may be configured to notify the number of resource blocks as the above-described maximum data amount.
  • the second feature of the present embodiment is that a combination of frequency bands capable of performing CA (E-UTRA Band Combination) and a combination of CC bandwidths within a frequency band capable of performing CA (Supported CC Bandwidth).
  • a receiving unit 13 configured to receive a signal in the entire bandwidth of the PCC (main carrier) of the CC in the first frequency band or the CC in the second frequency band. This is the gist.
  • the reception unit 13 may be configured to receive control information including scheduling information via the PDCCH in the entire bandwidth of the PCC.
  • the receiving unit 13 may be configured to receive broadcast information in the entire PCC bandwidth.
  • the receiving unit 13 receives downlink data via the PDSCH in the entire bandwidth of the PCC, and the entire bandwidth of the PCC via the PDSCH in the SCC (subcarrier). It may be configured to receive downlink data that could not be received.
  • the operations of the mobile station UE and the radio base station eNB described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. .
  • Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
  • the storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE and the radio base station eNB. Moreover, this storage medium and processor may be provided in the mobile station UE and the radio base station eNB as a discrete component.
  • a CA when a CA is operated in a specific frequency band, as a combination of CC bandwidths included in the combination of the corresponding frequency bands, To provide a mobile station capable of appropriately receiving a downlink data signal transmitted via the PDSCH in a state where CA is performed in such a specific frequency band even if operation is performed in combination. it can.
  • UE ... mobile station eNB ... radio base station 11 ... management unit 12, 23 ... transmission unit 13, 21 ... reception unit 22 ... scheduling unit

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

Abstract

The purpose of the present invention is to enable the adequate reception of downstream data transmitted via a PDSCH in a predetermined frequency bandwidth, even if the bandwidth of a CC which can execute CA in the predetermined frequency bandwidth has expanded. A mobile station (UE) according to the present invention is equipped with a reception unit (12) which is configured so as to report, to a wireless base station (eNB), the maximum amount of data that can be processed in a specific period in the mobile station (UE), rather than a CC bandwidth combination in the frequency bandwidth with which the mobile station (UE) is compatible, when a combination of a first frequency bandwidth and a second frequency bandwidth has been specified as a frequency bandwidth combination in which CA can be executed, and a CC bandwidth combination in a plurality of frequency bandwidths has been specified, and the mobile station (UE) is compatible with at least one CC bandwidth combination in the plurality of frequency bandwidths.

Description

移動局Mobile station
　本発明は、移動局に関する。 The present invention relates to a mobile station.
　３ＧＰＰで仕様化が進められているＬＴＥ（Ｌｏｎｇ　Ｔｅｒｍ　Ｅｖｏｌｕｔｉｏｎ）-Ａｄｖａｎｃｅｄ方式の移動通信システムでは、「ＣＡ（Ｃａｒｒｉｅｒ　Ａｇｇｒｅｇａｔｉｏｎ）」を行うことが検討されている。 In the LTE (Long Term Evolution) -Advanced mobile communication system, which is being specified by 3GPP, it is considered to perform "CA (Carrier Aggregation)".
　ＬＴＥ-Ａｄｖａｎｃｅｄ方式の移動通信システムでは、移動局ＵＥは、１つの無線基地局ｅＮＢとの間で、異なる周波数帯域の複数の「Ｃｏｍｐｏｎｅｎｔ　Ｃａｒｒｉｅｒ（ＣＣ）」を同時に用いて、ＣＡを行うことができるように構成されている。 In the LTE-Advanced mobile communication system, the mobile station UE can perform CA with a single radio base station eNB using a plurality of “Component Carriers (CC)” in different frequency bands at the same time. It is configured as follows.
　また、ＣＡが行われる場合、移動局ＵＥは、無線基地局からの指示に応じて、複数のＣＣの中から、１つをＰＣＣ（Ｐｒｉｍａｒｙ　Ｃｏｍｐｏｎｅｎｔ　Ｃａｒｒｅｒ）として設定し、その他をＳＣＣ（Ｓｅｃｏｎｄａｒｙ　Ｃｏｍｐｏｎｅｎｔ　Ｃａｒｒｅｒ）として設定するように構成されている。 In addition, when CA is performed, the mobile station UE sets one of a plurality of CCs as a PCC (Primary Component Carrer) and the other as a SCC (Secondary Component Carrer) in response to an instruction from the radio base station. ) Is configured to set as.
　また、ＬＴＥ-Ａｄｖａｎｃｅｄ方式では、ＣＡを行うことができる周波数帯域の組み合わせ（「Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」）に加えて、かかる周波数帯域の組み合わせに対して、該当周波数帯域の組み合わせに含まれる１つ又は複数のＣＣの帯域幅の組み合わせ（「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」）を規定することが提案されている（非特許文献１～４参照）。 In addition, in the LTE-Advanced scheme, in addition to the combination of frequency bands that can perform CA ("Band Combination"), one or more of the combinations of the frequency bands are included in the combination of the corresponding frequency bands. It has been proposed to define CC bandwidth combinations ("Supported CC Bandwidth Combinations") (see Non-Patent Documents 1 to 4).
　しかしながら、非特許文献３及び４で示される方法では、既存のＬＴＥ-Ａｄｖａｎｃｅｄ方式では、移動局ＵＥは、自身が対応する「Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」において、自身が対応する「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」に含まれる帯域幅よりも大きい帯域幅のＣＣで運用された場合には、ＣＡを行うことができないという問題点があった。 However, in the methods shown in Non-Patent Documents 3 and 4, in the existing LTE-Advanced scheme, the mobile station UE is included in the “Supported CC Bandwidth Combinations” that it supports in the “Band Combination” that it supports. When operated with a CC having a bandwidth larger than the bandwidth, there is a problem that CA cannot be performed.
　特に、ＬＴＥ-Ａｄｖａｎｃｅｄ方式の移動通信システムにおいて、特定の周波数帯域において、移動局ＵＥは、対象としないＣＣの帯域幅の組み合わせにて運用が行われていた場合に、かかる特定の周波数帯域内のＣＣを用いてＣＡを行うことができていたにも関わらず、かかる拡張の後には、かかる特定の周波数帯域内のＣＣを用いてＣＡを行うことができなくなってしまうという問題点があった。 In particular, in a mobile communication system of the LTE-Advanced scheme, in a specific frequency band, when the mobile station UE is operated with a combination of CC bandwidths not targeted, the mobile station UE In spite of having been able to perform CA using CC, there has been a problem that after such expansion, CA cannot be performed using CC within the specific frequency band.
　かかる場合、具体的には、移動局ＵＥは、対象としないＣＣの帯域幅の組み合わせで運用が行われていた場合に、かかる特定の周波数帯域において、ＰＤＳＣＨ（Ｐｈｙｉｓｃａｌ　Ｄｏｗｎｌｉｎｋ　Ｓｈａｒｅｄ　Ｃｈａｎｎｅｌ、物理下りリンク共有チャネル）を介して送信された下りデータを受信することができなくなってしまう可能性があった。 In this case, specifically, when the mobile station UE is operated with a combination of CC bandwidths that are not targeted, the PDSCH (Physical Downlink Shared Channel, physical downlink sharing) is used in the specific frequency band. There is a possibility that downlink data transmitted via the channel) cannot be received.
　そこで、本発明は、上述の課題に鑑みてなされたものであり、特定の周波数帯域においてＣＡが運用されている場合に、該当周波数帯域の組み合わせに含まれるＣＣの帯域幅の組み合わせとして、対象としていないＣＣの帯域幅の組み合わせにて運用が行われていたとしても、かかる特定周波数帯域において、ＣＡを行っている状態においてＰＤＳＣＨを介して送信された下りデータ信号を適切に受信することができる移動局を提供することを目的とする。 Therefore, the present invention has been made in view of the above-described problem, and when CA is operated in a specific frequency band, as a combination of CC bandwidths included in the combination of the corresponding frequency bands, Even if the operation is performed with a combination of non-CC bandwidths, it is possible to appropriately receive a downlink data signal transmitted via the PDSCH in a state where CA is performed in the specific frequency band. The purpose is to provide a station.
　本発明の第１の特徴は、ＣＡを行うことができる周波数帯域の組み合わせ、及び、ＣＡを行うことができる該周波数帯域内のキャリアの帯域幅の組み合わせが規定されている移動通信システムにおいて用いられる移動局であって、前記周波数帯域の組み合わせとして、第１周波数帯域及び第２周波数帯域の組み合わせが規定されており、複数の前記周波数帯域内のキャリアの帯域幅の組み合わせが規定されている場合で、かつ、前記移動局が、前記複数の周波数帯域内のキャリアの帯域幅の組み合わせの少なくとも１つに対応している場合には、無線基地局に対して、該移動局が対応している該周波数帯域内のキャリアの帯域幅の組み合わせではなく、該移動局において所定期間内に処理可能な最大データ量を通知するように構成されている送信部を具備することを要旨とする。 The first feature of the present invention is used in a mobile communication system in which a combination of frequency bands in which CA can be performed and a combination of carrier bandwidths in the frequency band in which CA can be performed are defined. In the case of a mobile station, a combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined. When the mobile station supports at least one of the combinations of carrier bandwidths in the plurality of frequency bands, the mobile station corresponds to the radio base station. It is configured to notify the maximum amount of data that can be processed within a predetermined period in the mobile station, not a combination of carrier bandwidths in the frequency band. And summarized in that comprises a transmitting unit.
　本発明の第２の特徴は、ＣＡを行うことができる周波数帯域の組み合わせ、及び、ＣＡを行うことができる該周波数帯域内のキャリアの帯域幅の組み合わせが規定されている移動通信システムにおいて用いられる移動局であって、前記周波数帯域の組み合わせとして、第１周波数帯域及び第２周波数帯域の組み合わせが規定されており、複数の前記周波数帯域内のキャリアの帯域幅の組み合わせが規定されている場合で、かつ、前記移動局が、前記複数の周波数帯域内のキャリアの帯域幅の組み合わせの少なくとも１つに対応している場合には、該第１周波数帯域内のキャリア又は該第２周波数帯域内のキャリアのうちの主キャリアの全帯域幅において信号を受信するように構成されている受信部を具備することを要旨とする。 The second feature of the present invention is used in a mobile communication system in which a combination of frequency bands in which CA can be performed and a combination of carrier bandwidths in the frequency band in which CA can be performed is defined. In the case of a mobile station, a combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined. And when the mobile station supports at least one of the combinations of bandwidths of carriers in the plurality of frequency bands, the carrier in the first frequency band or the second frequency band The gist of the invention is to include a receiving unit configured to receive a signal in the entire bandwidth of the main carrier of the carriers.
図１は、本発明の第１の実施形態に係る移動通信システムの全体構成図である。FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention. 図２は、本発明の第１の実施形態に係る移動局の機能ブロック図である。FIG. 2 is a functional block diagram of the mobile station according to the first embodiment of the present invention. 図３は、本発明の第１の実施形態に係る移動通信システムで実現可能なＣＡの組み合わせの一例について説明するための図である。FIG. 3 is a diagram for explaining an example of a combination of CAs that can be realized in the mobile communication system according to the first embodiment of the present invention. 図４は、本発明の第１の実施形態に係る移動局の受信部の機能について説明するための図である。FIG. 4 is a diagram for explaining functions of the receiving unit of the mobile station according to the first embodiment of the present invention. 図５は、本発明の第１の実施形態に係る無線基地局の機能ブロック図である。FIG. 5 is a functional block diagram of the radio base station according to the first embodiment of the present invention. 図６は、本発明の第１の実施形態に係る移動局の動作を説明するための図である。FIG. 6 is a diagram for explaining the operation of the mobile station according to the first embodiment of the present invention.
（本発明の第１の実施形態に係る移動通信システム）
　図１乃至図６を参照して、本発明の第１の実施形態に係る移動通信システムについて説明する。本実施形態に係る移動通信システムは、ＬＴＥ-Ａｄｖａｎｃｅｄ方式の移動通信システムである。 (Mobile communication system according to the first embodiment of the present invention)
With reference to FIG. 1 thru | or FIG. 6, the mobile communication system which concerns on the 1st Embodiment of this invention is demonstrated. The mobile communication system according to the present embodiment is an LTE-Advanced mobile communication system.
　なお、本実施形態に係る移動通信システムにおいて、移動局ＵＥは、無線基地局ｅＮＢとの間で、周波数帯域Ｆ１のＣＣ及び周波数帯域Ｆ２のＣＣを同時に用いて、信号の送受信を行うことができるように構成されている、すなわち、ＣＡを行うことができるように構成されている。 In the mobile communication system according to the present embodiment, the mobile station UE can transmit and receive signals to and from the radio base station eNB by simultaneously using the CC of the frequency band F1 and the CC of the frequency band F2. That is, it is comprised so that CA can be performed.
　図１に示すように、本実施形態に係る移動通信システムでは、移動局ＵＥに対して、周波数帯域Ｆ１のＣＣが「ＰＣＣ」として設定され、周波数帯域Ｆ２のＣＣが「ＳＣＣ」として設定されているものとする。 As shown in FIG. 1, in the mobile communication system according to the present embodiment, the CC of the frequency band F1 is set as “PCC” and the CC of the frequency band F2 is set as “SCC” for the mobile station UE. It shall be.
　図２に示すように、移動局ＵＥは、管理部１１と、送信部１２と、受信部とを具備している。 As shown in FIG. 2, the mobile station UE includes a management unit 11, a transmission unit 12, and a reception unit.
　管理部１１は、ＣＡを行うことができる周波数帯域の組み合わせ（図３に示す「Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」）のうち、移動局ＵＥが対応する周波数帯域の組み合わせを管理するように構成されている。 The management unit 11 is configured to manage a combination of frequency bands that the mobile station UE corresponds to among combinations of frequency bands that can perform CA (“E-UTRA Band Combination” illustrated in FIG. 3). .
　また、管理部１１は、移動局ＵＥが対応する周波数帯域の組み合わせにおいて、ＣＡを行うことができる周波数帯域内のＣＣの帯域幅の組み合わせ（図３に示す「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」）のうち、移動局ＵＥが対応する帯域幅の組み合わせを管理するように構成されている。 Further, the management unit 11 includes a combination of CC bandwidths within a frequency band in which CA can be performed in a combination of frequency bands supported by the mobile station UE ("Supported CC Bandwidth Combinations" illustrated in FIG. 3). The mobile station UE is configured to manage a combination of corresponding bandwidths.
　例えば、本実施形態に係る移動通信システムでは、図３に示すように、「Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」及び「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」が規定されていてもよい。 For example, in the mobile communication system according to the present embodiment, “E-UTRA Band Combination” and “Supported CC Bandwidth Combinations” may be defined as shown in FIG.
　図３に示すように、本実施形態に係る移動通信システムにおいて、１つの「Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」に対して、複数の「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」を規定することができる。 As shown in FIG. 3, in the mobile communication system according to this embodiment, a plurality of “Supported CC Bandwidth Combinations” can be defined for one “E-UTRA Band Combination”.
　ここで、管理部１１は、移動局ＵＥが対応する「Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」として、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」及び「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」の組み合わせ（図３に示す「５，１」）について管理するように構成されていてもよい。 Here, the management unit 11 has a combination of “E-UTRA Band # 5” and “E-UTRA Band # 1” as “E-UTRA Band Combination” supported by the mobile station UE (“5, shown in FIG. 3). 1 ") may be managed.
　また、管理部１１は、下りリンクにおいて移動局ＵＥが対応する「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」として、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」内の「１０ＭＨｚ」及び「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内の「１０ＭＨｚ」の組み合わせ（図３に示す「ＤＬ：１０＋１０」）について管理するように構成されていてもよい。 In addition, the management unit 11 sets “Supported CC Bandwidth Combinations” supported by the mobile station UE in the downlink as “10 MHz” in “E-UTRA Band # 5” and “10 MHz in“ E-UTRA Band # 1 ”. ”(“ DL: 10 + 10 ”shown in FIG. 3) may be managed.
　また、管理部１１は、上りリンクにおいて移動局ＵＥが対応する「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」として、下りリンクと同様の組み合わせを管理するように構成されていてもよい。 Also, the management unit 11 may be configured to manage the same combination as the downlink as “Supported CC Bandwidth Combinations” that the mobile station UE supports in the uplink.
　送信部１２は、移動局ＵＥが通信中の無線基地局ｅＮＢに対して、各種信号を送信するように構成されている。 The transmission unit 12 is configured to transmit various signals to the radio base station eNB with which the mobile station UE is communicating.
　例えば、移動局ＵＥが、本実施形態に係る移動通信システムにおいて規定されている「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」の少なくとも１つに対応している場合には、送信部１２は、無線基地局ｅＮＢに対して、移動局ＵＥが対応している「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」ではなく、移動局ＵＥにおいて所定期間内に処理可能な最大データ量を通知するように構成されている。 For example, when the mobile station UE supports at least one of “Supported CC Bandwidth Combinations” defined in the mobile communication system according to the present embodiment, the transmission unit 12 Thus, instead of “Supported CC Bandwidth Combinations” supported by the mobile station UE, the mobile station UE is configured to notify the maximum amount of data that can be processed within a predetermined period.
　ここで、かかる所定期間は、所定数（例えば、１つ）のサブフレームであってもよいし、所定数の（例えば、１つ）のＴＴＩ（Ｔｒａｎｓｍｉｓｓｉｏｎ　Ｔｉｍｅ　Ｉｎｔｅｒｖａｌ）であってもよい。 Here, the predetermined period may be a predetermined number (for example, one) subframes or a predetermined number (for example, one) TTI (Transmission Time Interval).
　また、送信部１２は、上述の最大データ量として、リソースブロック数を通知するように構成されていてもよい。 Also, the transmission unit 12 may be configured to notify the number of resource blocks as the above-described maximum data amount.
　例えば、送信部１２は、かかる最大データ量について、「ＵＥ　Ｃａｐａｂｉｌｉｔｙ（能力情報）」内の所定ビットによって通知するように構成されていてもよい。 For example, the transmission unit 12 may be configured to notify the maximum data amount by a predetermined bit in “UE Capability (capability information)”.
　受信部１３は、移動局ＵＥが通信中の無線基地局ｅＮＢから、各種信号を受信するように構成されている。 The receiving unit 13 is configured to receive various signals from the radio base station eNB with which the mobile station UE is communicating.
　例えば、受信部１３は、かかる無線基地局ｅＮＢから、スケジューリング情報を含む制御情報や、報知情報や、下りデータ等を受信するように構成されている。 For example, the receiving unit 13 is configured to receive control information including scheduling information, broadcast information, downlink data, and the like from the radio base station eNB.
　ここで、受信部１２は、本実施形態に係る移動通信システムにおいて規定されている「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」の少なくとも１つに対応している場合には、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」或いは「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のうちのＰＣＣの全帯域幅において信号を受信するように構成されている。 Here, if the receiving unit 12 supports at least one of “Supported CC Bandwidth Combinations” defined in the mobile communication system according to the present embodiment, “E-UTRA Band # 5” or “ It is configured to receive signals in the entire bandwidth of the PCC in “E-UTRA Band # 1”.
　例えば、図４（ａ）に示すように、移動局ＵＥが、下りリンクにおいて、「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」として、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」内の「１０ＭＨｚ」及び「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内の「１０ＭＨｚ」の組み合わせに対応している場合であっても、本実施形態に係る移動通信システムにおいて、移動局ＵＥに対する「ＰＣＣ」として「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のＣＣが設定されており、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」内において「１０ＭＨｚ」の帯域幅のＣＣが用いられ、かつ、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内において「２０ＭＨｚ」の帯域幅のＣＣが用いられている場合には、図４（ｂ）に示すように、受信部１３は、ＰＣＣが設定されている「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のＣＣの「２０ＭＨｚ」の全帯域幅において信号を受信するように構成されている。 For example, as illustrated in FIG. 4A, the mobile station UE transmits “Supported CC Bandwidth Combinations” as “Supported CC Bandwidth Combinations” as “10 MHz” and “E-UTRA Band # 1” in “E-UTRA Band # 5”. In the mobile communication system according to the present embodiment, the CC in “E-UTRA Band # 1” is set as the “PCC” for the mobile station UE even when the combination of “10 MHz” in “ CC with a bandwidth of “10 MHz” is used in “E-UTRA Band # 5”, and a CC with a bandwidth of “20 MHz” is used in “E-UTRA Band # 1”. 4 (b), the receiving unit 13 receives the “E-UT in which PCC is set. It is configured to receive signals in the entire band width of the "20MHz" the CC in A Band # 1 ".
　具体的には、受信部１３は、ＰＣＣの全帯域幅において、ＰＤＣＣＨを介して、スケジューリング情報を含む制御情報を受信するように構成されていてもよい。 Specifically, the receiving unit 13 may be configured to receive control information including scheduling information via the PDCCH in the entire bandwidth of the PCC.
　また、受信部１３は、ＰＣＣの全帯域幅において、報知情報を受信するように構成されていてもよい。 Further, the receiving unit 13 may be configured to receive broadcast information in the entire bandwidth of the PCC.
　さらに、受信部１３は、ＰＣＣ及びＳＣＣにおけるＰＤＳＣＨを介して通信を行う際に、ＰＣＣで送信される下りデータサイズ及びＳＣＣで送信される下りデータサイズの合計を、該当移動局ＵＥにおいて受信可能な最大データサイズとして、ＰＤＳＣＨを介して下りデータを受信するように構成されていてもよい。 Further, when the receiving unit 13 performs communication via the PDSCH in the PCC and the SCC, the mobile station UE can receive the total of the downlink data size transmitted in the PCC and the downlink data size transmitted in the SCC. The maximum data size may be configured to receive downlink data via the PDSCH.
　例えば、本実施形態に係る移動通信システムにおいて、移動局ＵＥに対する「ＰＣＣ」として「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」内のＣＣが設定されており、「ＳＣＣ」として「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のＣＣが設定されている場合について考える。 For example, in the mobile communication system according to the present embodiment, CC in “E-UTRA Band # 5” is set as “PCC” for the mobile station UE, and “E-UTRA Band # 1” is set as “SCC”. Let us consider a case in which the CC is set.
　また、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」内において「１０ＭＨｚ」の帯域幅のＣＣが用いられており、かつ、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内において「２０ＭＨｚ」の帯域幅のＣＣが用いられている場合について想定する。 Also, a CC with a bandwidth of “10 MHz” is used in “E-UTRA Band # 5”, and a CC with a bandwidth of “20 MHz” is used in “E-UTRA Band # 1”. Assuming that
　かかる場合、「２０ＭＨｚ」の帯域幅まで対応可能な移動局ＵＥの受信部１３は、「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のＣＣ（ＳＣＣ）上でＰＤＳＣＨを介して下りデータを受信可能である。 In such a case, the receiving unit 13 of the mobile station UE that can handle a bandwidth of “20 MHz” can receive downlink data via the PDSCH on the CC (SCC) in the “E-UTRA Band # 1”.
　かかる移動局ＵＥは、合計２０ＭＨｚ幅までを受信可能であるため、仮に「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５」において「５ＭＨｚ」のＰＤＳＣＨリソースが割り当てられていた場合、かかる移動局ＵＥは「Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１」内のＣＣ（ＳＣＣ）上で、ＰＤＳＣＨを介して「１５ＭＨｚ」の帯域幅の下りデータを受信するように構成されている。 Since such a mobile station UE can receive a total of up to 20 MHz, if a “5 MHz” PDSCH resource is allocated in “E-UTRA Band # 5”, the mobile station UE will be able to receive “E-UTRA Band”. On the CC (SCC) in “# 1”, downlink data having a bandwidth of “15 MHz” is received via the PDSCH.
　図５に示すように、無線基地局ｅＮＢは、受信部２１と、スケジューリング部２２と、送信部２３とを具備している。 As illustrated in FIG. 5, the radio base station eNB includes a reception unit 21, a scheduling unit 22, and a transmission unit 23.
　受信部２１は、無線基地局ｅＮＢと通信中の移動局ＵＥから、各種信号を受信するように構成されている。 The receiving unit 21 is configured to receive various signals from the mobile station UE in communication with the radio base station eNB.
　例えば、受信部２１は、かかる移動局ＵＥから、上述の「ＵＥ　Ｃａｐａｂｉｌｉｔｙ」等を受信するように構成されている。 For example, the receiving unit 21 is configured to receive the above-described “UE Capability” or the like from the mobile station UE.
　スケジューリング部２２は、かかる移動局ＵＥに対するスケジューリング処理を行うように構成されている。 The scheduling unit 22 is configured to perform scheduling processing for the mobile station UE.
　例えば、スケジューリング部２２は、移動局ＵＥから取得した上述の最大データ量（例えば、リソースブロック数）に基づいて、かかる移動局ＵＥに対するスケジューリング処理を行うように構成されていてもよい。 For example, the scheduling unit 22 may be configured to perform scheduling processing for the mobile station UE based on the above-described maximum data amount (for example, the number of resource blocks) acquired from the mobile station UE.
　かかる場合、スケジューリング部２２は、移動局ＵＥのＰＣＣにおいて、移動局ＵＥが対応する帯域幅までの下りデータを送信するリソースを割り当て、移動局ＵＥのＳＣＣにおいて、残りの下りデータを送信するリソースを割り当てるように構成されていてもよい。 In such a case, the scheduling unit 22 allocates resources for transmitting downlink data up to the bandwidth corresponding to the mobile station UE in the PCC of the mobile station UE, and allocates resources for transmitting the remaining downlink data in the SCC of the mobile station UE. It may be configured to allocate.
　或いは、スケジューリング部２２は、移動局ＵＥの「ＵＥ　Ｃａｔｅｇｏｒｙ」に基づいて決定した最大伝送速度及び送信に用いるＭＣＳ（Ｍｏｄｕｌａｔｉｏｎ　ａｎｄ　Ｃｏｄｉｎｇ　Ｓｃｈｅｍｅ）に基づいて、かかる移動局ＵＥが受信可能なＣＣの帯域幅を算出し、かかる帯域幅に基づいて、スケジューリング処理を行うように構成されていてもよい。 Alternatively, the scheduling unit 22 determines the CC bandwidth that the mobile station UE can receive based on the maximum transmission rate determined based on the “UE Category” of the mobile station UE and the MCS (Modulation and Coding Scheme) used for transmission. And scheduling processing may be performed based on the bandwidth.
　例えば、スケジューリング部２２は、合計が最大で２０ＭＨｚ幅となるように割り当てるとしてもよい。 For example, the scheduling unit 22 may allocate the total so as to have a maximum width of 20 MHz.
　送信部２３は、無線基地局ｅＮＢと通信中の移動局ＵＥに対して、各種信号を送信するように構成されている。 The transmission unit 23 is configured to transmit various signals to the mobile station UE in communication with the radio base station eNB.
　例えば、送信部２３は、かかる移動局ＵＥに対して、移動局ＵＥのＰＣＣ上で、ＰＤＣＣＨを介して、Ｐｃｅｌｌ（ＰＣＣのサービングセル）及びＳｃｅｌｌ（ＳＣＣのサービングセル）における下りデータのスケジューリング情報を送信するように構成されていてもよい。 For example, the transmission unit 23 transmits scheduling information of downlink data in the Pcell (PCC serving cell) and the Scell (SCC serving cell) to the mobile station UE via the PDCCH on the PCC of the mobile station UE. It may be configured as follows.
　かかる構成によれば、「Ｃｒｏｓｓ-Ｃａｒｒｉｅｒ　Ｓｃｈｅｄｕｌｉｎｇ」を実現することができる。 According to such a configuration, “Cross-Carrier Scheduling” can be realized.
　また、送信部２３は、かかる移動局ＵＥに対して、移動局ＵＥのＰＣＣ上で、Ｐｃｅｌｌにおける報知情報（ＭＩＢ（Ｍａｓｔｅｒ　Ｉｎｆｏｒｍａｔｉｏｎ　Ｂｌｏｃｋ）やＳＩＢ（Ｓｙｓｔｅｍ　Ｉｎｆｏｒｍａｔｉｏｎ　Ｂｌｏｃｋ）等）を送信するように構成されていてもよい。 In addition, the transmission unit 23 is configured to transmit broadcast information (MIB (Master Information Block), SIB (System Information Block), etc.) on the PCC of the mobile station UE to the mobile station UE. It may be.
　なお、送信部２３は、かかる移動局ＵＥに対して、個別シグナリングによって、Ｓｃｅｌｌにおける報知情報を送信するように構成されていてもよい。 In addition, the transmission part 23 may be comprised so that the alerting | reporting information in Scell may be transmitted with respect to this mobile station UE by separate signaling.
　また、送信部２３は、かかる移動局ＵＥに対して、移動局ＵＥのＰＣＣ及びＳＣＣ上で、上述のスケジューリング処理の結果に基づいて、ＰＤＳＣＨを介して、下りデータを送信するように構成されていてもよい。 Further, the transmission unit 23 is configured to transmit downlink data to the mobile station UE via the PDSCH based on the result of the above scheduling process on the PCC and SCC of the mobile station UE. May be.
　以下、図６を参照して、本実施形態に係る移動局ＵＥの動作例について説明する。 Hereinafter, an operation example of the mobile station UE according to the present embodiment will be described with reference to FIG.
　図６に示すように、ステップＳ１０１において、移動局ＵＥは、移動局ＵＥのＰＣＣとして設定されているＣＣの全帯域幅において、上述の制御情報及び報知情報を受信する。 As shown in FIG. 6, in step S101, the mobile station UE receives the above-described control information and broadcast information in the entire bandwidth of the CC set as the PCC of the mobile station UE.
　ステップＳ１０２において、移動局ＵＥは、かかる制御情報及び報知情報に基づいて、ＰＣＣ又はＳＣＣ上で、ＰＤＳＣＨを介して、下りデータを受信する。 In step S102, the mobile station UE receives downlink data via PDSCH on the PCC or SCC based on the control information and broadcast information.
　本発明の第１の実施形態に係る移動通信システムによれば、移動局ＵＥは、特定の周波数帯域においてＣＡを行うことができるＣＣの帯域幅が拡張された場合であっても、無線基地局ｅＮＢに対して、移動局ＵＥにおいて所定期間中に処理可能な最大データ量を通知することによって、適切なスケジューリング処理を行うことを促すことができるため、かかる特定の周波数帯域においてＰＤＳＣＨを介して送信された下りデータを適切に受信することができる。 According to the mobile communication system according to the first embodiment of the present invention, the mobile station UE can perform the radio base station even when the CC bandwidth capable of performing CA in a specific frequency band is expanded. By notifying the eNB of the maximum amount of data that can be processed in the mobile station UE during a predetermined period, it is possible to prompt the eNB to perform an appropriate scheduling process. Therefore, transmission is performed via the PDSCH in such a specific frequency band. Can be appropriately received.
　また、本発明の第１の実施形態に係る移動通信システムによれば、移動局ＵＥは、自身が対応する「Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ」において、自身が対応する「Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ」に含まれるＣＣの帯域幅よりも大きい帯域幅のＣＣで運用された場合であっても、ＰＣＣの全帯域幅について受信するように構成されているため、ＰＣＣにおいて制御情報や報知情報を受信することができ、適切にＣＡを行うことができる。 In addition, according to the mobile communication system according to the first embodiment of the present invention, the mobile station UE includes a CC band included in the “Supported CC Bandwidth Combinations” that it supports in the “Band Combination” that it supports. Even when operated with a CC having a bandwidth larger than the bandwidth, since it is configured to receive the entire bandwidth of the PCC, control information and broadcast information can be received in the PCC. CA can be performed.
　以上に述べた本実施形態の特徴は、以下のように表現されていてもよい。 The features of the present embodiment described above may be expressed as follows.
　本実施形態の第１の特徴は、ＣＡを行うことができる周波数帯域の組み合わせ（Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ）、及び、ＣＡを行うことができる周波数帯域内のＣＣの帯域幅の組み合わせ（Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ）が規定されている移動通信システムにおいて用いられる移動局ＵＥであって、かかる周波数帯域の組み合わせとして、第１周波数帯域（例えば、Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５）及び第２周波数帯域（例えば、Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１）の組み合わせが規定されており、複数の周波数帯域内のＣＣの帯域幅の組み合わせが規定されている場合で、かつ、移動局ＵＥが、かかる複数の周波数帯域内のＣＣの帯域幅の組み合わせの少なくとも１つに対応している場合には、無線基地局ｅＮＢに対して、移動局ＵＥが対応している周波数帯域内のＣＣの帯域幅の組み合わせではなく、移動局ＵＥにおいて所定期間内に処理可能な最大データ量を通知するように構成されている送信部１２を具備することを要旨とする。 The first feature of the present embodiment is that a combination of frequency bands capable of performing CA (E-UTRA Band Combination) and a combination of CC bandwidths within a frequency band capable of performing CA (Supported CC Bandwidth). A mobile station UE used in a mobile communication system in which a combination is defined, and as a combination of such frequency bands, a first frequency band (for example, E-UTRA Band # 5) and a second frequency band (for example, E -A combination of UTRA Band # 1) is specified, and a combination of CC bandwidths in a plurality of frequency bands is specified, and the mobile station UE has CCs in the plurality of frequency bands. Corresponds to at least one of the bandwidth combinations If the mobile station UE is not, the radio base station eNB is notified of the maximum amount of data that can be processed within a predetermined period in the mobile station UE, not the combination of CC bandwidths in the frequency band supported by the mobile station UE The gist of the present invention is to include a transmission unit 12 configured to do so.
　本実施形態の第１の特徴において、送信部１２は、上述の最大データ量として、リソースブロック数を通知するように構成されていてもよい。 In the first feature of the present embodiment, the transmission unit 12 may be configured to notify the number of resource blocks as the above-described maximum data amount.
　本実施形態の第２の特徴は、ＣＡを行うことができる周波数帯域の組み合わせ（Ｅ-ＵＴＲＡ　Ｂａｎｄ　Ｃｏｍｂｉｎａｔｉｏｎ）、及び、ＣＡを行うことができる周波数帯域内のＣＣの帯域幅の組み合わせ（Ｓｕｐｐｏｒｔｅｄ　ＣＣ　Ｂａｎｄｗｉｄｔｈ　Ｃｏｍｂｉｎａｔｉｏｎｓ）が規定されている移動通信システムにおいて用いられる移動局ＵＥであって、かかる周波数帯域の組み合わせとして、第１周波数帯域（例えば、Ｅ-ＵＴＲＡ　Ｂａｎｄ＃５）及び第２周波数帯域（例えば、Ｅ-ＵＴＲＡ　Ｂａｎｄ＃１）の組み合わせが規定されており、複数の周波数帯域内のＣＣの帯域幅の組み合わせが規定されている場合で、かつ、移動局ＵＥが、かかる複数の周波数帯域内のＣＣの帯域幅の組み合わせの少なくとも１つに対応している場合には、第１周波数帯域内のＣＣ又は該第２周波数帯域内のＣＣのうちのＰＣＣ（主キャリア）の全帯域幅において信号を受信するように構成されている受信部１３を具備することを要旨とする。 The second feature of the present embodiment is that a combination of frequency bands capable of performing CA (E-UTRA Band Combination) and a combination of CC bandwidths within a frequency band capable of performing CA (Supported CC Bandwidth). A mobile station UE used in a mobile communication system in which a combination is defined, and as a combination of such frequency bands, a first frequency band (for example, E-UTRA Band # 5) and a second frequency band (for example, E -A combination of UTRA Band # 1) is specified, and a combination of CC bandwidths in a plurality of frequency bands is specified, and the mobile station UE has CCs in the plurality of frequency bands. Corresponds to at least one of the bandwidth combinations A receiving unit 13 configured to receive a signal in the entire bandwidth of the PCC (main carrier) of the CC in the first frequency band or the CC in the second frequency band. This is the gist.
　本実施形態の第２の特徴において、受信部１３は、ＰＣＣの全帯域幅において、ＰＤＣＣＨを介して、スケジューリング情報を含む制御情報を受信するように構成されていてもよい。 In the second feature of the present embodiment, the reception unit 13 may be configured to receive control information including scheduling information via the PDCCH in the entire bandwidth of the PCC.
　本実施形態の第２の特徴において、受信部１３は、ＰＣＣの全帯域幅において、報知情報を受信するように構成されていてもよい。 In the second feature of the present embodiment, the receiving unit 13 may be configured to receive broadcast information in the entire PCC bandwidth.
　本実施形態の第２の特徴において、受信部１３は、ＰＣＣの全帯域幅において、ＰＤＳＣＨを介して、下りデータを受信し、ＳＣＣ（副キャリア）において、ＰＤＳＣＨを介して、ＰＣＣの全帯域幅において受信できなかった下りデータを受信するように構成されていてもよい。 In the second feature of the present embodiment, the receiving unit 13 receives downlink data via the PDSCH in the entire bandwidth of the PCC, and the entire bandwidth of the PCC via the PDSCH in the SCC (subcarrier). It may be configured to receive downlink data that could not be received.
　なお、上述の移動局ＵＥ及び無線基地局ｅＮＢの動作は、ハードウェアによって実施されてもよいし、プロセッサによって実行されるソフトウェアモジュールによって実施されてもよいし、両者の組み合わせによって実施されてもよい。 Note that the operations of the mobile station UE and the radio base station eNB described above may be implemented by hardware, may be implemented by a software module executed by a processor, or may be implemented by a combination of both. .
　ソフトウェアモジュールは、ＲＡＭ（Ｒａｎｄｏｍ　Ａｃｃｅｓｓ　Ｍｅｍｏｒｙ）や、フラッシュメモリや、ＲＯＭ（Ｒｅａｄ　Ｏｎｌｙ　Ｍｅｍｏｒｙ）や、ＥＰＲＯＭ（Ｅｒａｓａｂｌｅ　Ｐｒｏｇｒａｍｍａｂｌｅ　ＲＯＭ）や、ＥＥＰＲＯＭ（Ｅｌｅｃｔｒｏｎｉｃａｌｌｙ　Ｅｒａｓａｂｌｅ　ａｎｄ　Ｐｒｏｇｒａｍｍａｂｌｅ　ＲＯＭ）や、レジスタや、ハードディスクや、リムーバブルディスクや、ＣＤ-ＲＯＭといった任意形式の記憶媒体内に設けられていてもよい。 Software modules include RAM (Random Access Memory), flash memory, ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electronically Erasable and Programmable, Removable ROM, and Hard Disk). Alternatively, it may be provided in an arbitrary format storage medium such as a CD-ROM.
　かかる記憶媒体は、プロセッサが当該記憶媒体に情報を読み書きできるように、当該プロセッサに接続されている。また、かかる記憶媒体は、プロセッサに集積されていてもよい。また、かかる記憶媒体及びプロセッサは、ＡＳＩＣ内に設けられていてもよい。かかるＡＳＩＣは、移動局ＵＥ及び無線基地局ｅＮＢ内に設けられていてもよい。また、かかる記憶媒体及びプロセッサは、ディスクリートコンポーネントとして移動局ＵＥ及び無線基地局ｅＮＢ内に設けられていてもよい。 The storage medium is connected to the processor so that the processor can read and write information from and to the storage medium. Further, such a storage medium may be integrated in the processor. Such a storage medium and processor may be provided in the ASIC. Such an ASIC may be provided in the mobile station UE and the radio base station eNB. Moreover, this storage medium and processor may be provided in the mobile station UE and the radio base station eNB as a discrete component.
　以上、上述の実施形態を用いて本発明について詳細に説明したが、当業者にとっては、本発明が本明細書中に説明した実施形態に限定されるものではないということは明らかである。本発明は、請求の範囲の記載により定まる本発明の趣旨及び範囲を逸脱することなく修正及び変更態様として実施することができる。従って、本明細書の記載は、例示説明を目的とするものであり、本発明に対して何ら制限的な意味を有するものではない。 As described above, the present invention has been described in detail using the above-described embodiments. However, it is obvious for those skilled in the art that the present invention is not limited to the embodiments described in the present specification. The present invention can be implemented as modifications and changes without departing from the spirit and scope of the present invention defined by the description of the scope of claims. Therefore, the description of the present specification is for illustrative purposes and does not have any limiting meaning to the present invention.
　なお、日本国特許出願第２０１２－０５０３０３号（２０１２年３月７日出願）の全内容が、参照により、本願明細書に組み込まれている。 Note that the entire contents of Japanese Patent Application No. 2012-050303 (filed on March 7, 2012) are incorporated herein by reference.
　以上説明したように、本発明によれば、特定の周波数帯域においてＣＡが運用されている場合に、該当周波数帯域の組み合わせに含まれるＣＣの帯域幅の組み合わせとして、対象としていないＣＣの帯域幅の組み合わせにて運用が行われていたとしても、かかる特定周波数帯域において、ＣＡを行っている状態においてＰＤＳＣＨを介して送信された下りデータ信号を適切に受信することができる移動局を提供することができる。 As described above, according to the present invention, when a CA is operated in a specific frequency band, as a combination of CC bandwidths included in the combination of the corresponding frequency bands, To provide a mobile station capable of appropriately receiving a downlink data signal transmitted via the PDSCH in a state where CA is performed in such a specific frequency band even if operation is performed in combination. it can.
ＵＥ…移動局
ｅＮＢ…無線基地局
１１…管理部
１２、２３…送信部
１３、２１…受信部
２２…スケジューリング部 UE ... mobile station eNB ... radio base station 11 ... management unit 12, 23 ... transmission unit 13, 21 ... reception unit 22 ... scheduling unit

Claims (6)

  1. 　ＣＡ（Ｃａｒｒｉｅｒ　Ａｇｇｒｅｇａｔｉｏｎ）を行うことができる周波数帯域の組み合わせ、及び、ＣＡを行うことができる該周波数帯域内のキャリアの帯域幅の組み合わせが規定されている移動通信システムにおいて用いられる移動局であって、
    　前記周波数帯域の組み合わせとして、第１周波数帯域及び第２周波数帯域の組み合わせが規定されており、複数の前記周波数帯域内のキャリアの帯域幅の組み合わせが規定されている場合で、かつ、前記移動局が、前記複数の周波数帯域内のキャリアの帯域幅の組み合わせの少なくとも１つに対応している場合には、無線基地局に対して、該移動局が対応している該周波数帯域内のキャリアの帯域幅の組み合わせではなく、該移動局において所定期間内に処理可能な最大データ量を通知するように構成されている送信部を具備することを特徴とする移動局。     A mobile station used in a mobile communication system in which a combination of frequency bands capable of performing CA (Carrier Aggregation) and a combination of carrier bandwidths in the frequency band capable of performing CA are defined. ,
    A combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined, and the mobile station However, when it corresponds to at least one of the combinations of the bandwidths of the carriers in the plurality of frequency bands, the carrier of the carrier in the frequency band that the mobile station corresponds to the radio base station A mobile station comprising a transmitter configured to notify a maximum data amount that can be processed within a predetermined period in the mobile station, not a combination of bandwidths.
  2. 　前記送信部は、前記最大データ量として、リソースブロック数を通知するように構成されていることを特徴とする請求項１に記載の移動局。 The mobile station according to claim 1, wherein the transmission unit is configured to notify the number of resource blocks as the maximum data amount.
  3. 　ＣＡ（Ｃａｒｒｉｅｒ　Ａｇｇｒｅｇａｔｉｏｎ）を行うことができる周波数帯域の組み合わせ、及び、ＣＡを行うことができる該周波数帯域内のキャリアの帯域幅の組み合わせが規定されている移動通信システムにおいて用いられる移動局であって、
    　前記周波数帯域の組み合わせとして、第１周波数帯域及び第２周波数帯域の組み合わせが規定されており、複数の前記周波数帯域内のキャリアの帯域幅の組み合わせが規定されている場合で、かつ、前記移動局が、前記複数の周波数帯域内のキャリアの帯域幅の組み合わせの少なくとも１つに対応している場合には、該第１周波数帯域内のキャリア又は該第２周波数帯域内のキャリアのうちの主キャリアの全帯域幅において信号を受信するように構成されている受信部を具備することを特徴とする移動局。     A mobile station used in a mobile communication system in which a combination of frequency bands capable of performing CA (Carrier Aggregation) and a combination of carrier bandwidths in the frequency band capable of performing CA are defined. ,
    A combination of a first frequency band and a second frequency band is defined as a combination of the frequency bands, and a combination of carrier bandwidths in a plurality of the frequency bands is defined, and the mobile station Is compatible with at least one of the combinations of carrier bandwidths in the plurality of frequency bands, the main carrier of the carrier in the first frequency band or the carrier in the second frequency band. A mobile station comprising a receiving unit configured to receive a signal in the entire bandwidth.
  4. 　前記受信部は、前記主キャリアの全帯域幅において、ＰＤＣＣＨ（Ｐｈｙｓｉｃａｌ　Ｄｏｗｎｌｉｎｋ　Ｃｏｎｔｒｏｌ　Ｃｈａｎｎｅｌ）を介して、スケジューリング情報を含む制御情報を受信するように構成されていることを特徴とする請求項３に記載の移動局。 The said receiving part is comprised so that the control information containing scheduling information may be received via PDCCH (Physical Downlink Control Channel) in the whole bandwidth of the said main carrier. Mobile stations.
  5. 　前記受信部は、前記主キャリアの全帯域幅において、報知情報を受信するように構成されていることを特徴とする請求項３に記載の移動局。 The mobile station according to claim 3, wherein the receiving unit is configured to receive broadcast information in the entire bandwidth of the main carrier.
  6. 　前記受信部は、前記主キャリアの全帯域幅において、ＰＤＳＣＨ（Ｐｈｙｓｉｃａｌ　Ｄｏｗｎｌｉｎｋ　Ｓｈａｒｅｄ　Ｃｈａｎｎｅｌ）を介して、下りデータを受信し、副キャリアにおいて、ＰＤＳＣＨを介して、該主キャリアの全帯域幅において受信できなかった下りデータを受信するように構成されていることを特徴とする請求項３に記載の移動局。 The reception unit can receive downlink data via the PDSCH (Physical Downlink Shared Channel) in the entire bandwidth of the main carrier, and can receive the subcarrier in the entire bandwidth of the main carrier via the PDSCH. 4. The mobile station according to claim 3, wherein the mobile station is configured to receive downlink data that has not been received.
PCT/JP2013/056280 2012-03-07 2013-03-07 Mobile station WO2013133374A1 (en)

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Citations (3)

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WO2010087172A1 (en) * 2009-02-02 2010-08-05 三菱電機株式会社 Mobile communication system
WO2011121774A1 (en) * 2010-03-31 2011-10-06 富士通株式会社 Wireless communication method, wireless communication system and wireless communication apparatus
JP2011205655A (en) * 2011-04-26 2011-10-13 Sharp Corp Mobile station device, processor, wireless communication system, communication control method, communication control program, and base station apparatus

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WO2010087172A1 (en) * 2009-02-02 2010-08-05 三菱電機株式会社 Mobile communication system
WO2011121774A1 (en) * 2010-03-31 2011-10-06 富士通株式会社 Wireless communication method, wireless communication system and wireless communication apparatus
JP2011205655A (en) * 2011-04-26 2011-10-13 Sharp Corp Mobile station device, processor, wireless communication system, communication control method, communication control program, and base station apparatus

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