WO2015125623A1 - 移動通信システム及び移動局装置 - Google Patents
移動通信システム及び移動局装置 Download PDFInfo
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- WO2015125623A1 WO2015125623A1 PCT/JP2015/053262 JP2015053262W WO2015125623A1 WO 2015125623 A1 WO2015125623 A1 WO 2015125623A1 JP 2015053262 W JP2015053262 W JP 2015053262W WO 2015125623 A1 WO2015125623 A1 WO 2015125623A1
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- component carrier
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- duplex mode
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/28—Discontinuous transmission [DTX]; Discontinuous reception [DRX]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0852—Delays
- H04L43/0864—Round trip delays
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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
- H04L5/14—Two-way operation using the same type of signal, i.e. duplex
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
- H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Definitions
- the present invention relates to the field of mobile communication, and more particularly to discontinuous reception (DRX) control during carrier aggregation (CA) between different duplex modes.
- DRX discontinuous reception
- CA carrier aggregation
- LTE Long Termination Evolution
- LTE-advanced which are mobile communication standards standardized by 3GPP (Third Generation Partnership Project)
- DRX Discontinuous reception
- UE User Equipment
- HARQ RTT Hybrid Automatic Repeat Request Round Trip Time
- the HARQ RTT timer measures the timing at which the data is retransmitted when downlink data is received.
- the UE may not be active at least for retransmission of the data. This is because it is not expected to receive retransmission data until the timer expires. However, it will be excluded if it happens to be active due to other conditions.
- carrier aggregation Intra-eNB CA
- CC component carriers
- eNB evolved Node B
- component carriers bundled by carrier aggregation are limited to the same duplex mode. That is, the component carrier operated in the primary cell (PCell) and the component carrier operated in the secondary cell (SCell) are both FDD (Frequency Division Duplex) component carriers, or both are TDD (Time Division).
- Duplex time-division multiplexed component carrier.
- the HARQ round trip time that should be assumed differs depending on the duplex mode of the primary cell (PCell). Since the component carrier for transmitting ACK / NACK in the MAC (Media Access Control) layer is limited to the PCell component carrier (referred to as “PCC”), the HARQ round trip time depends on the PCell duplex mode. Because.
- TDD-FDD carrier aggregation it is assumed that both TDD and FDD are set to PCell and controlled.
- the HARQ round trip time is a fixed time (for example, 8 ms).
- different RRT values are defined according to the set “TDD config”, that is, the arrangement ratio of the downlink (DL) subframe and the uplink (UL) subframe. This is because the processing delay time varies depending on the DL / UL arrangement ratio.
- the HARQ RTT timer value is set separately for the PCell component carrier (PCC) and the SCell component carrier (referred to as “SCC”).
- the HARQ RTT timer value corresponding to the TDD setting (TDD config) is used for the SCell in the TDD mode.
- the downlink retransmission timing may be delayed.
- FDD HARQ RTT timer value 8ms is applied to FDD mode SCell, so UE becomes active even in subframes that are not expected to be retransmitted in the downlink. waste.
- a first component carrier operated in a first cell that performs radio communication in a first duplex mode and a second component carrier that is different from the first duplex mode.
- a mobile communication system that performs carrier aggregation using a second component carrier operated in a second cell that performs wireless communication in a duplex mode of A cell for transmitting an uplink control channel for delivery confirmation of the first component carrier and the second component carrier is set,
- the uplink control Perform intermittent reception control using a timer value according to the duplex mode of the cell transmitting the channel. It is characterized by that.
- TDD-FDD carrier aggregation When TDD-FDD carrier aggregation is performed between cells in different duplex modes, it is possible to implement intermittent reception control that suppresses delay in downlink retransmission timing and unnecessary battery consumption of the mobile station.
- TDD-FDD carrier aggregation It is a figure which shows the example of resource allocation of FDD and TDD. It is a figure which shows the selection example of the HARQ-RTT timer in the intermittent reception control of 1st Embodiment. It is a figure which shows the selection example of the HARQ-RTT timer in the intermittent reception control of 1st Embodiment. 5 is a flowchart of HAQR / RTT timer control performed in a mobile station. It is a figure which shows the selection example of the HARQ-RTT timer in the intermittent reception control of 2nd Embodiment.
- FIG. 10 is a sequence diagram at the time of TDD-FDD carrier aggregation according to the second embodiment. It is a schematic block diagram of the mobile station of embodiment.
- FIG. 1 is a schematic configuration diagram of a mobile communication system 1 according to an embodiment.
- the mobile communication system 1 includes a first base station 10 that operates in a first duplex mode, a second base station 20 that operates in a second duplex mode, and a mobile station (UE) 30.
- the UE 30 transmits and receives data using the component carrier operated by the first base station 10 and the component carrier operated by the second base station 21.
- the first base station 10 is, for example, a macro base station (eNB) 10 and supports area FDD wireless communication within the service area 11 of the own station.
- the second base station 20 may be, for example, a radio device (RRE: Remote Radio Equipment) connected to the macro base station, or may be a small base station (eNB) 20, and may be a TDD system within the service area 21 of the own station. Supports wireless communication.
- RRE Remote Radio Equipment
- FIG. 2 shows an example of resource allocation for FDD and TDD.
- FDD frequency resources for uplink communication and frequency resources for downlink communication are always prepared. Therefore, the minimum transmission time is a fixed value obtained by adding the processing delay time in the UE 30 and the eNB 10 to the downlink transmission time and the uplink transmission time (each 1 subframe).
- the FDD HARQ round trip time is set to a minimum transmission time (for example, 8 ms).
- a certain frequency is time-divided and subframes are allocated to the uplink and the downlink.
- the arrangement ratio of the subframe for uplink communication (indicated by “D” in the figure) and the subframe for downlink communication (indicated by “U” in the figure) includes a plurality of types of configurations. Different round trip times are defined for each configuration.
- S in the figure is a special subframe for switching from the subframe “(D)” for downlink communication to the subframe “U” ⁇ for the uplink subframe.
- a component carrier operated by the FDD method is referred to as an “FDD component carrier”, and a component carrier operated by the TDD method is referred to as a “TDD component carrier”.
- TDD-FDD carrier aggregation is set in the UE 30. For example, communication using an FDD primary CC operated by the macro eNB 10 and a TDD secondary CC operated by the small eNB 20 is performed.
- the UE 30 also performs discontinuous reception (DRX) for battery saving and executes the HARQ process for each component carrier.
- DRX discontinuous reception
- the UE 30 uses the HARQ RTT timer value corresponding to the duplex mode of the cell that transmits the PUCCH for ACK / NACK.
- the HARQ RTT timer value for FDD (for example, 8 ms) is also applied to the component carrier of the TCell SCell (small eNB 20 in this example). ) Is set.
- the UE 30 in the “RRC connected” state transitions between two states of an active state and an inactive state.
- the UE 30 monitors the downlink control channel (PDCCH) for each component carrier, and provides feedback information such as channel quality (CQI) and precoding matrix (PMI) and a sounding reference signal (SRS). Report.
- the UE 30 does not monitor the PDCCH and does not report feedback information.
- the UE 30 When the UE 30 receives new transmission data or retransmission data of downlink data in each of the FDD component carrier and the TDD component carrier, the UE 30 turns on the HARQ RTT timer and becomes inactive until the timer expires. (It may become active due to other conditions such as inactivity timer activation, but such cases are excluded here.) At this time, the UE 30 sets the same HARQ RTT timer value (8 ms in this example) for both the primary component carrier (PCC) of the FDD of the macro eNB 10 and the secondary component carrier (SCC) of the TDD operated by the small eNB 20. Set. As a result, it is possible to avoid battery delay due to a delay in retransmission timing in the downlink and a transition to the active state at a timing that is too early.
- PCC primary component carrier
- SCC secondary component carrier
- FIG. 3 is a diagram illustrating a selection example of the HARQ RTT timer value according to the first embodiment.
- the UE 30 receives the downlink data by performing TDD-FDD carrier aggregation using the PCell component carrier, the SCell # 1 component carrier, and the SCell # 2 component carrier. Depending on the error detection result of each component carrier, ACK or NACK is multiplexed on the PCell PUCCH and transmitted. In this case, the HARQ RTT timer value corresponding to the PCell duplex mode that transmits the PUCCH for ACK / NACK is used for all the component carriers that are the targets of TDD-FDD carrier aggregation.
- the HARQ RTT timer value for FDD is used for all component carriers. If the PCell is TDD, the HARQ RTT corresponding to the PCell's "TDDTDconfig" for all component carriers A timer value is used.
- the base station (macro eNB 10 in this example) that has received the PUCCH performs retransmission scheduling for each component carrier based on the ACK / NACK response of each component carrier included in the PUCCH.
- FIG. 4 is a diagram illustrating another selection example of the HARQ RTT timer value according to the first embodiment.
- ACK / NACK of each component carrier is transmitted on PUCCH of SCell # 1.
- the UE 30 receives downlink data using a PCell component carrier, a SCell # 1 component carrier, and a SCell # 2 component carrier.
- the ACK or NACK for each component carrier is multiplexed with the PUCCH of SCell # 1 and transmitted.
- the HARQ RTT timer value corresponding to the duplex mode of SCell # 2 is used for all component carriers.
- HARQ RTT timer value corresponding to “TDD config” of SCell # 1 is used for all component carriers.
- SCell # 1 is FDD
- HARQ RTT of all component carriers A minimum transmission time, for example, 8 ms is set as the timer value.
- SCel # 1 may be a secondary cell operated by the macro eNB 10 or a cell operated by the small eNB 20. Since the PUCCH is used for a data retransmission request, a low error rate is required.
- ACK / ACK is performed on the PUCCH of SCell # 1 based on the duality of the uplink and downlink channels of TDD. It is fully conceivable to send a NACK.
- the base station that has received the PUCCH performs retransmission scheduling for each component carrier based on the ACK / NACK response of each component carrier included in the PUCCH.
- the ACK / NACK result may be notified to the macro eNB 10 that provides PCell.
- FIG. 5 is a flowchart of intermittent reception control in the UE 30. The process of FIG. 5 is performed for each component carrier that is a target of TDD-FDD carrier aggregation.
- the UE 30 determines whether or not the component carrier that transmits the ACK / NACK PUCCH is an FDD component carrier (S102).
- the HARQ RTT timer value is set to a fixed value of the FDD HARQ round trip time, for example, 8 ms (S103).
- the value of the HARQ RTT timer is set to a value corresponding to “TDD config” (S104).
- Second Embodiment 6 and 7 are diagrams illustrating examples of selection of the HARQ RTT timer value according to the second embodiment.
- ACK / NACK is transmitted using a plurality of PUCCHs.
- the UE 30 uses a PCell component carrier (PCC), a SCell # 1 component carrier (SCC # 1), and a SCell # 2 component carrier (SCC # 2) to perform a TDD-FDD carrier. Aggregation is performed and downlink data is received.
- PCell component carrier PCC
- SCell # 1 component carrier SCC # 1
- SCell # 2 component carrier SCC # 2
- the UE 30 transmits ACK / NACK for the downlink PCC on the PCell PUCCH, and transmits ACK / NACK for the downlink SCC # 1 and the downlink SCC # 2 on the PUCCH of SCell # 1. It has been configured.
- the UE 30 uses the HARQ RTT timer value corresponding to the PCell duplex mode for the PCC, and uses the HARQ RTT timer value corresponding to the SCell # 1 duplex mode for the SCC # 1 and SCC # 2. .
- the HARQHARTT timer value for the PCC is set to 8 ms.
- a value corresponding to “TDD config” of SCell # 1 is set as the HARQ RTT timer value for SCC # 1 and SCC # 2.
- TDD-FDD carrier aggregation can suppress delay of retransmission timing and wasteful battery consumption while minimizing the number of HARQ RTT timers.
- the ACK / NACK for the downlink PCell component carrier (PCC) and the downlink SCell # 1 component carrier (SCC # 1) is transmitted on the PUCCH of SCell # 1
- the downlink SCell # 2 ACK / NACK for the second component carrier (SCC # 2) is configured to be transmitted on the PUCCH of SCell # 2.
- UE30 uses the HARQ RTT timer value corresponding to the duplex mode of SCell # 1 for PCC and SCC # 1, and for SCC # 2, SCell # 2 Use the HARQ RTT timer value corresponding to the duplex mode.
- the HARQ RTT timer value for PCC and SCC # 1 is set to 8 ms.
- a value corresponding to “TDD config” of SCell # 2 is set as the HARQ RTT timer value for SCC # 2.
- TDD-FDD carrier aggregation can suppress delay of retransmission timing and wasteful battery consumption while minimizing the number of HARQHARTT timers.
- FIG. 8 is a processing sequence diagram between the UE 30 and the base station (eNB) at the time of TDD-FDD carrier aggregation according to the second embodiment.
- a base station that operates a PCell for the UE 30 adds a cell in a different duplex mode (for example, a cell that is operated by the small eNB 20) as a SCell, and sends an individual control signal “RRC connection reconfiguration” to the UE 30. (S201).
- the UE 30 sets the SCell and transmits a completion notification “RRC connection reconfiguration complete” to the eNB (S202).
- the eNB Since the SCell is in the de-activate state immediately after being added, the eNB transmits a command for making the added SCell an Activate state (which can be scheduled) (S203).
- the eNB transmits downlink data to the UE using a PCell component carrier (PCC) (S204), and transmits downlink data to the UE using a SCell component carrier (SCC) in a different duplex mode (S205).
- PCC PCell component carrier
- SCC SCell component carrier
- the UE 30 that has received the downlink data by the PCC starts the HARQellRTT timer for PCell using a timer value corresponding to the PCell duplex mode, and notifies the error detection result of the downlink data by the PCell PUCCH (S206).
- UE 30 receives downlink data in SCC
- UE 30 activates a SRQ HARQ ⁇ RTT timer using a timer value corresponding to the SCell duplex mode, and notifies an error detection result of downlink data in SCell PUCCH (S207).
- the HARQ T RTT timer for PCell is started using the timer value corresponding to the minimum PCell duplex mode, and the error detection result of the downlink data is displayed on the PCell PUCCH. Notice.
- the PCRQ HARQ RTT timer is started using a timer value corresponding to the PCell duplex mode, and the downlink data error detection result is notified on the PCell PUCCH.
- the PUCCH used for transmission of ACK / NACK may be specified semi-statically by an RRC (Radio Resource Control) signal.
- RRC Radio Resource Control
- FIG. 9 is a schematic block diagram of the mobile station (UE) 30 of the embodiment.
- the UE 30 includes a downlink (DL) signal receiving unit 31, an uplink (UL) signal receiving unit 32, a component carrier (CC) management unit 33, and a discontinuous reception (DRX) control unit 35.
- DL downlink
- UL uplink
- CC component carrier
- DRX discontinuous reception
- the DL signal receiving unit receives the downlink data signal on each component carrier from a cell in a different duplex mode.
- various control signals including individual control signals are received from the PCell.
- the individual control signals include SCell setting / addition / change requests at the time of carrier aggregation.
- the UL signal transmission unit 32 transmits the error detection result of the downlink data of the PCell component carrier (PCC) and the SCell component carrier (SCC) on the PUCCH of one or more specific cells.
- PCC PCell component carrier
- SCC SCell component carrier
- the CC management unit 33 performs SCell setting / addition / change in response to a Sell setting / addition / change request from the PCell, and manages the component carriers operated in the PCell and SCell. When carrier aggregation between different duplex modes is performed, the component carrier of each cell is associated with the corresponding duplex mode and managed.
- the CC management unit 33 also manages setting information on which cell's PUCCH transmits ACK / NACK for each component carrier used in carrier aggregation.
- the DRX control unit 35 includes an FDD HARQ RTT timer 36, a TDD HARQ RTT timer 38, and a counter management unit 37 that individually manages the counter value (timer value) of each timer.
- the DRX control unit 35 determines which PUCCH should be used to transmit ACK / NACK for each component carrier based on the setting information of the CC management unit 33. To do. Then, according to the duplex mode of the cell transmitting the PUCCH, at least one of the FDD HARQ RTT timer 36 and the TDD HARQ RTT timer 38 is activated to control the transition to the inactive state.
- the FDD HARQ RTT timer 36 is used when the cell that transmits the PUCCH is an FDD cell, and the timer value is set to 8 ms, for example.
- the TDD HARQ RTT timer 38 is used when the cell transmitting the PUCCH is a TDD cell, and a value corresponding to “TDD config” of the PUCCH transmission cell is used as the timer value.
- the UE may report the presence / absence of the capability to the eNB, and the control may be applied only to the UE with the capability.
- the small eNB is described as an example of the second base station that operates the SCell that is the target of carrier aggregation.
- the second base station is a child station such as an RRE, carrier aggregation (Intra- The same applies to eNB CA).
Abstract
Description
前記第1コンポーネントキャリア、及び前記第2コンポーネントキャリアの送達確認用の上りリンク制御チャネルを送信するセルが設定されており、
移動局は、前記第1コンポーネントキャリアで送られてくる第1下りデータ信号と、前記第2コンポーネントキャリアで送られてくる第2下りリンクデータ信号の少なくとも一方を受信したときに、前記上りリンク制御チャネルを送信するセルのデュプレックスモードに応じたタイマ値を用いて間欠受信制御を行う、
ことを特徴とする。
(1)ACK(Acknowledgement)/NACK(Negative Acknowledgement)を単一の上りリンク制御チャネル(PUCCH:Physical Uplink Control Channel)で通知する場合においては、TDD-FDDキャリアアグリゲーションの対象となっているすべてのコンポーネントキャリアに対してPUCCHを送信するセルのデュプレックス・モードに応じたHARQ RTTタイマ値を用い、
(2)PUCCH送信を行うセルが複数ある場合には、PUCCHを送信する各セルのデュプレックス・モードに応じたHARQ RTTタイマ値を用いる、
ことを提案する。
<第1実施形態>
第1実施形態では、TDD-FDDキャリアアグリゲーションにおいて、下りリンクデータ送信に対するACK/NACK応答をひとつのPUCCHで行う場合を例にとる。
このとき、UE30は、マクロeNB10のFDDのプライマリコンポーネントキャリア(PCC)と、スモールeNB20が運用するTDDのセカンダリコンポーネントキャリア(SCC)の双方に対して、同じHARQ RTTタイマ値(この例では8ms)を設定する。これにより、下りリンクでの再送タイミングの遅延や、早すぎるタイミングでのアクティブ状態への遷移によるバッテリー消費を回避することができる。
<第2実施形態>
図6及び図7は、第2実施形態のHARQ RTTタイマ値の選択例を示す図である。第2実施形態では、複数のPUCCHでACK/NACKを送信する。
<移動局構成>
図9は、実施形態の移動局(UE)30の概略ブロック図である。UE30は、下りリンク(DL)信号受信部31と、上りリンク(UL)信号受信部32と、コンポーネントキャリア(CC)管理部33と、間欠受信(DRX)制御部35を有する。
Claims (10)
- 第1のデュプレックスモードで無線通信を行う第1セルで運用される第1コンポーネントキャリアと、前記第1のデュプレックスモードと異なる第2のデュプレックスモードで無線通信を行う第2セルで運用される第2コンポーネントキャリアとを用いてキャリアアグリゲーションを行う移動通信システムにおいて、
前記第1コンポーネントキャリア、及び前記第2コンポーネントキャリアの送達確認用の上りリンク制御チャネルを送信するセルが設定されており、
移動局は、前記第1コンポーネントキャリアで送られてくる第1下りリンクデータ信号と、前記第2コンポーネントキャリアで送られてくる第2下りリンクデータ信号の少なくとも一方を受信したときに、前記上りリンク制御チャネルを送信するセルのデュプレックスモードに応じたタイマ値を用いて間欠受信制御を行う、
ことを特徴とする移動通信システム。 - 前記第1コンポーネントキャリアと前記第2コンポーネントキャリアの送達確認用に、単一の前記上りリンク制御チャネルが設定されている場合に、
前記移動局は、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記上りリンク制御チャネルを送信するセルの前記デュプレックスモードに応じた前記タイマ値を用いることを特徴とする請求項1に記載の移動通信システム。 - 単一の前記上りリンク制御チャネルが周波数分割多重モードの前記第1セルに設定されている場合に、前記移動局は、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記周波数多重モードでの最小往復伝送時間を表す前記タイマ値を用いることを特徴とする請求項2に記載の移動通信システム。
- 単一の前記上りリンク制御チャネルが時分割多重モードの前記第2セルに設定されている場合に、前記移動局は、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記第2セルの上りリンクサブフレームと下りリンクサブフレームの配置比率に応じた前記タイマ値を用いることを特徴とする請求項2に記載の移動通信システム。
- 前記第1セルと前記第2セルに、前記送達確認用の前記上りリンク制御チャネルが設定されている場合に、
前記移動局は、前記第1コンポーネントキャリアに対して前記第1のデュプレックスモードに応じたタイマ値を用い、前記第2コンポーネントキャリアに対して前記第2のデュプレックスモードに応じたタイマ値を用いて、個別に前記間欠受信制御を行うことを特徴とする請求項1に記載の移動通信システム。 - 第1のデュプレックスモードで無線通信を行う第1セルで運用される第1コンポーネントキャリアと、前記第1のデュプレックスモードと異なる第2のデュプレックスモードで無線通信を行う第2セルで運用される第2コンポーネントキャリアとを用いてキャリアアグリゲーションを行う移動通信システムで用いられる移動局装置において、
前記第1コンポーネントキャリア、前記第2コンポーネントキャリア、及び前記第1コンポーネントキャリアと前記第2コンポーネントキャリアの送達確認用の上りリンク制御チャネルを送信するセルを管理する管理部と、
前記第1コンポーネントキャリアで送られてくる第1下りリンクデータ信号と、前記第2コンポーネントキャリアで送られてくる第2下りリンクデータ信号の少なくとも一方を受信したときに、前記管理部で管理される情報に基づいて、前記上りリンク制御チャネルを送信するセルのデュプレックスモードに応じたタイマ値を用いて間欠受信制御を行う制御部と、
を有することを特徴とする移動局装置。 - 前記制御部は、前記第1コンポーネントキャリアと前記第2コンポーネントキャリアの送達確認用に、単一の前記上りリンク制御チャネルが設定されている場合に、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記上りリンク制御チャネルを送信するセルの前記デュプレックスモードに応じた前記タイマ値を用いることを特徴とする請求項6に記載の移動局装置。
- 前記制御部は、単一の前記上りリンク制御チャネルが周波数分割多重モードの前記第1セルに設定されている場合に、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記周波数分割多重モードでの最小往復伝送時間を表す前記タイマ値を用いることを特徴とする請求項7に記載の移動局装置。
- 前記制御部は、単一の前記上りリンク制御チャネルが時分割多重モードの前記第2セルに設定されている場合に、前記移動局は、前記第1コンポーネントキャリアと、前記第2コンポーネントキャリアのそれぞれに対して、前記第2セルの上りリンクサブフレームと下りリンクサブフレームの配置比率に応じた前記タイマ値を用いることを特徴とする請求項7に記載の移動局装置。
- 前記制御部は、前記第1セルと前記第2セルに、前記送達確認用の前記上りリンク制御チャネルが設定されている場合に、前記第1コンポーネントキャリアに対して前記第1のデュプレックスモードに応じたタイマ値を用い、前記第2コンポーネントキャリアに対して前記第2のデュプレックスモードに応じたタイマ値を用いて、個別に前記間欠受信制御を行うことを特徴とする請求項6に記載の移動局装置。
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