WO2010100966A1 - 通信システム及び間欠受信方法 - Google Patents
通信システム及び間欠受信方法 Download PDFInfo
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- WO2010100966A1 WO2010100966A1 PCT/JP2010/050609 JP2010050609W WO2010100966A1 WO 2010100966 A1 WO2010100966 A1 WO 2010100966A1 JP 2010050609 W JP2010050609 W JP 2010050609W WO 2010100966 A1 WO2010100966 A1 WO 2010100966A1
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- Prior art keywords
- station apparatus
- mobile station
- reception
- component carriers
- control channel
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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
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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
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
- H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
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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
- 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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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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
- H04L5/0091—Signaling for the administration of the divided path
- H04L5/0096—Indication of changes in allocation
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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 a mobile station device, a communication system, and an intermittent reception method in an operation at the time of intermittent reception.
- the W-CDMA system is standardized as a third generation cellular mobile communication system, and services are started sequentially.
- HSDPA with higher communication speed has also been standardized and the service has started.
- standardization of the evolution of third generation radio access (Evolved Universal Terrestrial Radio Access; hereinafter referred to as “EUTRA”) is in progress.
- the EUTRA downlink communication system employs an OFDM (Orthogonal Frequency Division Multiplexing) method that is resistant to multipath interference and suitable for high-speed transmission.
- OFDM Orthogonal Frequency Division Multiplexing
- SC-FDMA Single carrier frequency division multiplexing
- PAPR Peak-to-average power ratio
- DFT Discrete Fourier Transform
- an OFDM (Orthogonal-Frequency-Division-Multiplexing) scheme has been proposed.
- a single carrier communication method of DFT (Discrete Fourier Transform) -spread OFDM method has been proposed.
- downlink pilot channel DPiCH Downlink Pilot Channel
- downlink synchronization channel DSCH Downlink Synchronization Channel
- downlink shared channel PDSCH Physical Downlink Shared Channel
- a channel PDCCH PhysicalCHDownlink Control Channel
- CCPCH Common Control Physical Channel
- the uplink pilot channel UPiCH Uplink Pilot Channel
- random access channel RACH Random Access Channel
- uplink shared channel PUSCH Physical Uplink Shared Channel
- uplink control channel PUCCH Physical Uplink Control Channel
- the downlink configuration is shown in FIG. 13 and FIG.
- One resource block is composed of 12 subcarriers and 7 OFDM symbols.
- one subframe is configured, and downlink shared channel PDSCH is allocated to at least one mobile station apparatus.
- the downlink control channel PDCCH uses the first to third symbols in the head resource block, and the downlink shared channel PDSCH uses the remaining OFDM symbols.
- the downlink pilot channel DPiCH is arranged in a Scattered format in the resource block as shown in FIG.
- FIG. 13 shows an example in which the base station apparatus has two transmission antennas, and there are two types of pilot symbols.
- a downlink is composed of a plurality of resource blocks.
- the reception of the downlink control channel PDCCH and the downlink shared channel PDSCH includes a continuous reception mode and a discontinuous reception (DRX) mode.
- the intermittent reception mode is introduced in order to suppress the power consumption of the mobile station apparatus connected to the base station apparatus.
- parameters related to intermittent reception (reception ON period, DRX interval, DRX start position, etc.) are specified from the base station apparatus to the mobile station apparatus, and then the downlink control channel PDCCH and downlink shared channel PDSCH in the continuous reception mode.
- the operation shifts to the intermittent reception mode from the DRX start position.
- the intermittent reception mode When the intermittent reception mode is entered, if the downlink control channel PDCCH is monitored during the reception period specified by the base station apparatus, and downlink control data addressed to the mobile station apparatus is detected on the downlink control channel PDCCH, reception ON The period is extended and further preparations are made for data reception of the downlink control channel PDCCH and the downlink shared channel PDSCH.
- the intermittent reception mode includes Short DRX and Long DRX, and Long DRX is DRX having a longer DRX interval than Short DRX.
- the intermittent reception mode is entered from Short DRX.
- the downlink shared channel PDSCH is not allocated in the downlink control channel PDCCH for a certain period
- the short DRX is shifted to the Long DRX.
- FIG. 16 shows the relationship between continuous reception, Short DRX and Long DRX.
- the Short DRX interval is 2 ms to 640 ms
- the Long DRX interval is 10 ms to 2560 ms, each of which is designated by the base station apparatus.
- Parameters related to discontinuous reception include a DRX interval, a reception ON period of the downlink control channel PDCCH, and a reception ON extension period that extends the reception ON period when the downlink control channel PDCCH is received within the reception ON period of the downlink control channel PDCCH.
- DRX start position reception ON period at the time of retransmission, and the like, and are sent to the mobile station apparatus by RRC layer (Radio-Resource-Control-Layer) messages (Non-Patent Documents 3, 4, 5).
- Advanced-EUTRA a further evolution of EUTRA.
- Advanced-EUTRA it is assumed that communication at a maximum transmission rate of 1 Gbps or more and 500 Mbps or more of the uplink is performed using a band up to a maximum of 100 MHz bandwidth in each of the uplink and the downlink.
- FIG. 17 Advanced-EUTRA considers realizing a 100 MHz band by bundling a plurality of 20 MHz bands of EUTRA so that a 100 MHz band can be accommodated by EUTRA mobile station apparatuses.
- one 20 MHz band of EUTRA is called a component carrier (CC).
- CC component carrier
- 3GPP TS (Technical Specification) 36.211, V8.50 (2008-012), Technical Specification Group Radio Access Network, Physical Channel and Modulation (Release 8) 3GPP TS (Technical Specification) 36.212, V8.50 (2008-012), Technical Specification Group Radio Access Network, Multiplexing and channel coding (Release 8) 3GPP TS (Technical Specification) 36.300, V8.70 (2008-012), Evolved Universal Terrestrial Radio Access (E-UTRA) and Evolved Universal Terrestrial Radio Access Network (E-UTRAN), Overall description 3GPP TS (Technical Specification) 36.321, V8.40 (2008-012), Evolved Universal Terrestrial Radio Access (E-UTRA) Medium Access Control (MAC) protocol specification 3GPP TS (Technical Specification) 36.331, V8.40 (2008-012), Evolved Universal Terrestrial Radio Access (E-UTRA) Radio Resource Control (RRC) Protocol specification
- RRC Radio Resource
- a mobile station device connected to a base station device has a continuous reception mode and an intermittent reception mode, and performs reception processing in intermittent reception according to the amount of data from the base station device. The details are not decided.
- the bandwidth processed by the Advanced-EUTRA mobile station device is wider than that of the EUTRA mobile station device, the power consumption increases, but the power consumption of the mobile station device in the intermittent reception mode is comparable to that of the EUTRA mobile station device. Power consumption is required.
- the present invention solves the above-described problem, and provides a base station apparatus and mobile station apparatus for the purpose of providing an efficient intermittent reception operation to an Advanced-EUTRA mobile station apparatus. It is.
- a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, all the mobile station apparatuses use one intermittent reception parameter at the time of intermittent reception.
- the control channel is monitored by all the component carriers, and when the control channel addressed to the own mobile station apparatus is received by one or more component carriers during the reception ON period, A mobile station apparatus characterized by extending a reception ON period.
- a second technical means in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, at the time of intermittent reception, an operation of monitoring a control channel with one component carrier is performed, and the other component carriers Then, when the control channel monitoring operation is performed and control data addressed to the mobile station apparatus is received during the reception ON period, the reception operation is performed for all component carriers connected during the reception ON extension period.
- This is a characteristic mobile station apparatus.
- a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, at the time of intermittent reception, an operation of monitoring the control channel with one component carrier is performed, and the other component carriers Then, when the control channel addressed to the mobile station apparatus is received during the reception ON period, the mobile station performs the reception operation on all component carriers connected in the next reception ON period. It is a station device.
- a fourth technical means in a mobile station apparatus connected to a base station apparatus using a plurality of component carriers, an operation of monitoring a control channel with one component carrier is performed at the time of intermittent reception, and other component carriers Is a mobile station apparatus that releases the connection with the base station apparatus.
- the base station device instructs the mobile station device to perform an intermittent reception operation using an RRC message.
- the base station device transmits a MAC message to the mobile station device to stop the intermittent reception operation.
- the mobile station apparatus transmits one intermittent reception parameter to the mobile station at the time of intermittent reception. This is applied to all component carriers used by the device, and the control channel is monitored by all component carriers, and the control channel addressed to the mobile station device is received by one or more component carriers during the reception ON period.
- the intermittent reception method extends the reception ON period in all component carriers.
- the mobile station apparatus monitors the control channel with one component carrier at the time of intermittent reception. In other component carriers, the control channel is not monitored, and control data addressed to the mobile station apparatus is received during the reception ON period.
- This is an intermittent reception method in which a reception operation is performed with a component carrier.
- the eighth technical means is that in the intermittent reception method by the mobile station apparatus connected to the base station apparatus using a plurality of component carriers, the mobile station apparatus monitors the control channel with one component carrier at the time of intermittent reception. In other component carriers, the control channel is not monitored, and when the control channel addressed to the mobile station apparatus is received during the reception ON period, all of the components connected in the next reception ON period are received.
- This is an intermittent reception method in which a reception operation is performed with a component carrier.
- the mobile station apparatus transmits a control channel with one component carrier at the time of intermittent reception.
- This is an intermittent reception method in which the monitoring operation is performed and the other component carriers are released from the connection with the base station apparatus.
- a tenth technical means is an intermittent reception method in which a mobile station apparatus performs intermittent reception in a communication system in which a base station apparatus and a mobile station apparatus are connected using a plurality of component carriers. Intermittent reception method in which intermittent reception operation is instructed by RRC message to station apparatus, and base station apparatus transmits MAC message to mobile station apparatus and stops intermittent reception operation when mobile station apparatus is performing intermittent reception It is.
- Power consumption can be reduced in the intermittent reception operation when the mobile station apparatus has a plurality of component carriers.
- FIG. 5 It is a figure which shows the operation example of the mobile station apparatus at the time of the intermittent reception of Example 5 of this invention. It is a block diagram of the mobile station apparatus of Example 5 of this invention. It is a figure which shows the operation example of the mobile station apparatus at the time of the intermittent reception of Example 6 of this invention. It is a figure which shows the operation example of the mobile station apparatus at the time of the intermittent reception of Example 7 of this invention. It is a figure which shows the channel structural example of EUTRA. It is a figure which shows the structural example of a downlink. It is another figure which shows the structural example of a downlink. It is a figure which shows the operation example of DRX. It is another figure which shows the operation example of DRX. It is a figure for demonstrating a component carrier.
- Example 1 A system shown in FIG. 17 is assumed as a system that can use a plurality of systems (or a plurality of bands) as shown in FIG. Further, as described with reference to FIGS. 15 and 16, a communication system having a continuous reception mode and a discontinuous reception (DRX) mode is assumed for downlink shared channel PDSCH reception.
- One band is called a component carrier (CC).
- the lower layer (physical layer) is considered to process data for each CC. That is, the data sent for each CC is different, and it is considered that the retransmission processing in the lower layer is also performed on a CC basis. For this reason, when the base station apparatus transmits DRX parameters for each CC and the mobile station apparatus performs DRX control for each CC, a separate operation is performed for each CC, so that the DRX effect is hardly lost. Therefore, the effect of DRX can be obtained by performing the same DRX operation in all CCs.
- the base station apparatus transmits the DRX parameters (DRX interval, downlink control channel PDCCH reception ON period, downlink control channel PDCCH reception ON period of the downlink control channel PDCCH through any one CC among a plurality of CCs.
- the mobile station apparatus is notified of the period for extending the reception ON period, the DRX start position, and the like.
- the mobile station apparatus starts DRX control from the DRX start position instructed by the base station apparatus.
- the mobile station apparatus applies DRX parameters passed from the base station apparatus to all CCs, and performs DRX control on all CCs from the DRX start position as shown in FIG.
- the reception ON period is extended in all CCs as shown in FIG. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH.
- the reception ON period can be extended for all CCs, and the base station apparatus can transmit a large amount of data to the mobile station apparatus during the reception ON period. Further, since the DRX parameter is transmitted by only one CC, it is not necessary to use a useless resource.
- the configuration of the mobile station device is shown in FIG.
- the configuration of the mobile station apparatus includes a radio unit 11, a transmission processing unit 12, a reception processing unit 13, a transmission data control unit 14, a scheduling unit 15, a control data extraction unit 16, and a DRX control unit 17.
- the scheduling unit 15 includes a control data creation unit 151, a control data analysis unit 152, and a UL scheduling unit 153.
- User data is input to the transmission data control unit 14, and the transmission data control unit 14 assigns each data to each channel according to an instruction from the scheduling unit 15 and sends the data to the transmission processing unit 12.
- the signal from the transmission data control unit 14 is encoded and modulated.
- the modulated signal is serial / parallel converted and parallelized, and then subjected to DFT (DiscretecreFourier Transform (Discrete Fourier Transform))-IFFT (Inverse Fast Fourier Transform (Inverse Fast Fourier Transform)) processing.
- DFT DiscretecreFourier Transform
- IFFT Inverse Fast Fourier Transform (Inverse Fast Fourier Transform)
- the serialized signal is inserted with a CP (Cyclic Prefix), which is converted into an analog signal by a D / A (digital / analog) conversion unit, and the radio unit 11 Up-converted to a radio frequency and transmitted from a transmitting antenna.
- CP Cyclic Prefix
- the radio unit 11 down-converts the radio signal received from the antenna and passes it to the reception processing unit 13.
- the reception processing unit 13 performs A / D (analog / digital) conversion on the signal passed from the wireless unit 11, performs FFT (Fast Fourier Transform) processing, decoding, demodulation processing, and the like, and demodulates them.
- Data is passed to the control data extraction unit 16.
- the control data extraction unit 16 looks at the downlink control channel PDCCH and determines whether the data is addressed to the own mobile station device. If the data is addressed to the own mobile station device, the downlink shared channel demodulated by the reception processing unit 13 PDSCH data is divided into control data and user data. Control data is passed to the uplink control unit, and user data is passed to the upper layer.
- the DRX control unit 17 is notified.
- the scheduling unit 15 is instructed to return a response to the received data.
- the scheduling unit 15 includes an UL scheduling unit 153, a control data analysis unit 152, and a control data creation unit 151.
- the control data creation unit 151 creates control data, and downlink data received by the control data extraction unit 16 Create a response for.
- the control data analysis unit 152 analyzes the control data, passes uplink data scheduling information to the UL scheduling unit 153, and passes DRX parameters for intermittent reception to the DRX control unit 17.
- the UL scheduling unit 153 controls the transmission data control unit 14 based on the scheduling information.
- the DRX control unit 17 performs power management for each processing unit, and performs power management for the radio unit 11, the transmission processing unit 12, the reception processing unit 13, and the like using the DRX parameters passed from the scheduling unit 15.
- the DRX operation is started from the DRX start position, and the radio unit 11 and the reception processing unit 13 are turned on during the reception ON period. Then, when there is a report of receiving the downlink control channel PDCCH from the control data extraction unit 16, the reception ON period is extended by the reception ON extension period. Further, when there is data transmission to the base station apparatus, the transmission processing unit 12 is powered on.
- the DRX control unit 17 may also perform power control of the transmission data control unit 14, the control data extraction unit 16, and the scheduling unit 15.
- the transmission processing unit 12 and the reception processing unit 13 are divided into processing units for each CC as shown in FIGS. 3 and 4, and power is supplied from the DRX control unit 17 to each CC processing unit, and the reception ON state is established. Alternatively, the CC that is not in the transmission state is turned off.
- the base station apparatus determines the CC used by the mobile station apparatus and notifies the mobile station apparatus of the component carrier used by the mobile station apparatus.
- the base station apparatus sets DRX parameters suitable for the mobile station apparatus and notifies the mobile station apparatus of the DRX parameters.
- Example 2 In the first embodiment, an example in which the DRX operation is performed in all CCs has been shown. However, in this embodiment, when intermittent reception is performed, an example in which intermittent reception is performed in one CC is illustrated.
- the base station apparatus transmits the DRX parameters (DRX interval, downlink control channel PDCCH reception ON period, downlink control channel PDCCH reception ON period of the downlink control channel PDCCH through any one CC among a plurality of CCs.
- the mobile station apparatus is notified of the period for extending the reception ON period, the DRX start position, and the like.
- the mobile station apparatus starts DRX control from the DRX start position instructed by the base station apparatus only by the CC that has received the DRX parameter. Then, the mobile station apparatus performs the intermittent reception operation with only one CC as shown in FIG.
- CCs other than CCs that perform DRX control do not perform reception processing.
- the mobile station apparatus When the mobile station apparatus receives control data addressed to the mobile station apparatus through the downlink control channel PDCCH during the reception ON period, the mobile station apparatus extends the reception ON period for all CCs as shown in FIG. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH. Thus, since the reception ON period can be extended for all CCs, the base station apparatus can transmit a large amount of data to the mobile station apparatus during the extended reception ON period. Since the downlink control channel PDCCH is monitored by only one CC while the mobile station apparatus is performing DRX control, power consumption is less than that by monitoring all CCs.
- DRX control may be performed with a plurality of CCs. For example, reception processing from the base station apparatus may be performed with five CCs during normal times, and two CCs may be monitored during DRX.
- reception processing from the base station apparatus may be performed with five CCs during normal times, and two CCs may be monitored during DRX.
- the reception ON period is extended in all CCs. Also good.
- Example 3 when intermittent reception is performed, an example in which intermittent reception is performed with one CC is shown.
- the base station apparatus transmits the DRX parameter (DRX interval, downlink control channel PDCCH reception ON period, downlink control channel PDCCH reception ON period of downlink control channel PDCCH through any one CC among a plurality of CCs.
- the mobile station apparatus is notified of the period for extending the reception ON period, the DRX start position, and the like.
- the mobile station apparatus starts DRX control from the DRX start position only with the CC that has received the DRX parameter.
- CCs other than CCs that perform DRX control do not perform reception processing.
- the mobile station apparatus performs an intermittent reception operation with one CC as shown in FIG.
- control data addressed to the mobile station apparatus is received on the downlink control channel PDCCH during the reception ON period, if the reception ON period is extended by the CC as shown in FIG. 6 and there is data transmitted from the base station apparatus , Receive processing. Then, the mobile station apparatus sets the reception ON state for all CCs during the next reception ON period.
- the reception ON period is extended for all CCs.
- the base station device transmits data when all CCs are in the reception ON state, and the mobile station device receives the data. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH.
- the reception state can be set for all CCs, and while the mobile station apparatus is performing DRX control, the downlink control channel PDCCH is monitored with only one CC. However, it consumes less power. In addition, the mobile station device can be easily controlled.
- DRX control may be performed with a plurality of CCs. For example, reception processing from the base station apparatus may be performed with five CCs during normal times, and two CCs may be monitored during DRX.
- Example 4 when intermittent reception is performed, an example in which intermittent reception is performed with one CC is shown.
- the base station apparatus transmits the DRX parameters (DRX interval, downlink control channel PDCCH reception ON period, downlink control channel PDCCH reception ON period of the downlink control channel PDCCH through any one CC among a plurality of CCs.
- the mobile station apparatus is notified of the period for extending the reception ON period, the DRX start position, and the like.
- the mobile station apparatus receives the DRX parameter
- the mobile station apparatus starts the intermittent reception operation from the DRX start position only with the CC that has received the DRX parameter. Note that the mobile station apparatus does not perform reception processing in CCs other than the CC that performs the intermittent reception operation.
- the mobile station apparatus performs DRX control with only one CC as shown in FIG.
- the reception ON period is extended only by the CC as shown in FIG. That is, during DRX control, data reception operation is performed with only one CC.
- the base station apparatus wants to transmit a large amount of data to the mobile station apparatus, the CC that performs DRX operation for a message that causes the mobile station apparatus to perform reception operation on all CCs (message that stops the intermittent reception operation) Send through.
- the mobile station apparatus receives the message and sets all CCs in a continuous reception state after the message processing.
- the message that returns to continuous reception at this time may be an upper layer (Radio Resource Control Layer: RRC layer) message, or a lower layer 1 bit such as a MAC (Medium Access Control) layer for faster processing.
- RRC layer Radio Resource Control Layer
- a flag may be used to start / stop the intermittent reception operation.
- the base station apparatus When the mobile station apparatus processes the message and determines that all CCs are in the reception state, the base station apparatus transmits data to all CCs, and the mobile station apparatus receives data from the base station apparatus. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH. It is possible to set the reception state for all CCs, and basically, while performing DRX control, the downlink control channel PDCCH is monitored with only one CC, so it is more than monitoring with all CCs. Less power consumption. In addition, the mobile station device can be easily controlled.
- the configurations of the mobile station apparatuses according to the second to fourth embodiments are the same as those of the mobile station apparatus described with reference to FIG.
- Example 5 In the fourth embodiment, continuous reception is performed for all CCs, and during intermittent reception, the operation is performed with one CC. However, in this embodiment, during intermittent reception, the operation is performed with one CC, and other CCs are operated. Shows an example of releasing.
- the base station apparatus transmits the DRX parameters (DRX interval, downlink control channel PDCCH reception ON period, downlink control channel PDCCH reception ON period of the downlink control channel PDCCH through any one CC among a plurality of CCs. In the case of reception, the mobile station apparatus is notified of the period for extending the reception ON period, the DRX start position, and the like.
- the mobile station apparatus When receiving the DRX parameter, the mobile station apparatus starts DRX control from the DRX start position only with the CC that has received the DRX parameter. Note that the mobile station apparatus does not perform reception processing for CCs other than CCs that perform intermittent reception operations. Further, the CC that does not perform the intermittent reception operation is also disconnected from the base station apparatus.
- the mobile station apparatus performs an intermittent reception operation as shown in FIG.
- the reception ON period is extended by the CC as shown in FIG. That is, during DRX control, data reception operation is performed with only one CC.
- a base station apparatus wants to transmit a lot of data to a mobile station apparatus, it transmits the connection message with respect to other CC with respect to a mobile station apparatus through CC which is DRX-operating.
- the mobile station apparatus receives this message and shifts to a reception state for all CCs after the message processing.
- This connection message may specify the CC to be connected.
- the base station apparatus transmits data to all CCs when the mobile station apparatus processes the message and determines that all CCs are in a receiving state, and the mobile station apparatus receives this data. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH. It is possible to set the reception state for all CCs, and basically, while performing DRX control, the downlink control channel PDCCH is monitored with only one CC, so it is more than monitoring with all CCs. Less power consumption. Further, even in a CC that does not perform reception processing, the mobile station apparatus measures the radio quality of the base station apparatus and other base station apparatuses that are regularly connected. This wireless link quality measurement need not be performed, and power consumption is reduced.
- the configuration of the mobile station apparatus is shown in FIG.
- the configuration of the mobile station apparatus includes a radio unit 11, a transmission processing unit 12, a reception processing unit 13, a transmission data control unit 14, a scheduling unit 18, a control data extraction unit 16, and a DRX control unit 17.
- the scheduling unit 18 includes a control data creation unit 181, a control data analysis unit 182, a UL scheduling unit 183, and a CC management unit 184.
- the operations of the radio unit 11, the transmission processing unit 12, the reception processing unit 13, the transmission data control unit 14, and the control data extraction unit 16 are the same as the operations of the mobile station apparatus shown in FIG.
- the scheduling unit 18 includes a UL scheduling unit 183, a control data analysis unit 182, a control data creation unit 181, and a CC management unit 184.
- the control data creation unit 181 creates control data
- the control data extraction unit 16 receives the control data. Create a response for the downlink data.
- the control data analysis unit 182 analyzes the control data, passes uplink data scheduling information to the UL scheduling unit 183, and passes DRX parameters for intermittent reception to the DRX control unit 17. Also, CC setting / release information is passed to the CC management unit 184.
- the UL scheduling unit 183 controls the transmission data control unit 14 based on the scheduling information.
- the CC management unit 184 manages CC setting and release.
- the DRX control unit 17 is instructed to supply power to the set CC processing unit, and the power is supplied to each processing unit that processes the CC to be released when the intermittent reception operation is started.
- the DRX control unit 17 performs power management for each processing unit, and performs power management for the radio unit 11, the transmission processing unit 12, the reception processing unit 13, and the like with the DRX parameters passed from the scheduling unit 18.
- the DRX operation is started from the DRX start position, and the radio unit 11 and the reception processing unit 13 are turned on during the reception ON period.
- the reception ON period is extended by the reception ON extension period. Further, when there is data transmission to the base station apparatus, the transmission processing unit 12 is powered on. Further, power management for each processing unit is performed according to an instruction from the scheduling unit 18.
- the DRX control unit 17 may also perform power control of the transmission data control unit 14, the control data extraction unit 16, and the scheduling unit 18.
- the transmission processing unit 12 and the reception processing unit 13 are divided into processing units for each CC as shown in FIGS. 3 and 4, and power is supplied from the DRX control unit 17 to each CC processing unit, and the reception ON state. Alternatively, the CC that is not in the transmission state is turned off.
- the base station apparatus determines the CC used by the mobile station apparatus and notifies the mobile station apparatus of the component carrier used by the mobile station apparatus.
- the base station apparatus sets DRX parameters suitable for the mobile station apparatus and notifies the mobile station apparatus of the DRX parameters. Further, when the mobile station apparatus recognizes that the intermittent reception is started with the designated DRX parameter, the connection of CCs other than the CC performing the intermittent reception control is released. That is, no data is transmitted to the released CC.
- the base station device When the base station device stores a certain amount of data addressed to the mobile station device in the buffer of the base station device, the base station device sends a CC connection message to the mobile station device through the CC that is intermittently receiving, and continuously receives it on all CCs After confirming that, the data is transmitted to the mobile station apparatus.
- Example 6 In the fifth embodiment, an example in which the connection with the base station apparatus is released for the CC that is not performing the intermittent reception operation is shown. However, in this embodiment, the timing for releasing the connection with the base station apparatus is individually set. An example of setting for each CC is shown.
- the frequency of data reception may still increase, but in the case of a long period DRX reception state, the possibility of receiving a large amount of data is low. .
- DRX reception is performed with a plurality of CCs, and power consumption is reduced by sequentially reducing the number of CCs to be used.
- the base station apparatus When the base station apparatus receives a DRX parameter common to all CCs (DRX interval, downlink control channel PDCCH reception ON period, and downlink control channel PDCCH reception ON period of the downlink control channel PDCCH, the reception ON period
- the mobile station apparatus is notified of the period during which the mobile station apparatus is extended, the DRX start position, and the like. Also, the effective period of each CC after DRX is notified at the same time.
- the mobile station apparatus When receiving the DRX parameter, the mobile station apparatus starts DRX control for all CCs from the DRX start position. The mobile station apparatus performs an intermittent reception operation.
- the reception ON period is extended for all valid CCs as shown in FIG. That is, during DRX control, a data reception operation is performed with a valid CC.
- the mobile station apparatus stops reception processing at the CC and releases the CC.
- the valid period of the CC may be a period from the time when the DRX is entered, or may be a period from when data reception during the DRX was last received.
- a base station apparatus when a base station apparatus wants to transmit a lot of data to a mobile station apparatus, it transmits the connection message with respect to other CC with respect to a mobile station apparatus through CC which is DRX-operating.
- the mobile station apparatus processes the message and determines that all CCs are in the reception state, the base station apparatus transmits data to all CCs, and the mobile station apparatus receives this data. In this way, even if the base station apparatus does not transmit the downlink control channel PDCCH to all CCs, it transmits one downlink control channel PDCCH, and the mobile station apparatus receives one downlink control channel PDCCH.
- the reception state for all CCs, and basically, while performing DRX control, the downlink control channel PDCCH is monitored with only one CC, so it is more than monitoring with all CCs. Less power consumption. Further, even in a CC that does not perform reception processing, the mobile station apparatus measures the radio quality of the base station apparatus and other base station apparatuses that are regularly connected. This wireless link quality measurement need not be performed, and power consumption is reduced.
- the DRX parameters are common to all CCs, but the DRX parameters may be different for each CC. Since the effective period is set for each CC, there is no problem even if it operates individually.
- the configuration of the mobile station apparatus is the same as that of the mobile station apparatus described with reference to FIG.
- the radio unit 11, the transmission processing unit 12, the reception processing unit 13, the transmission data control unit 14, the scheduling unit 18, the control data extraction unit 16, and the DRX control unit 17 are configured.
- the scheduling unit 18, the operations of the control data creation unit 181, the control data analysis unit 182, and the UL scheduling unit 183 are the same.
- the CC management unit 184 manages CC setting and release.
- the DRX control unit 17 is instructed to supply power to the set CC processing unit.
- an instruction is given to stop power supply to each processing unit that is processing the CC whose effective period has passed.
- the base station apparatus determines the CC used by the mobile station apparatus and notifies the mobile station apparatus of the CC used by the mobile station apparatus.
- the base station apparatus sets DRX parameters suitable for the mobile station apparatus, and notifies the mobile station apparatus of the DRX parameters and the valid period of each CC after DRX. Also, intermittent reception is started with the DRX parameter designated by the mobile station apparatus, and the connection of the CC is released when the set valid period of each CC has passed.
- the base station device stores a certain amount of data addressed to the mobile station device in the buffer of the base station device, the base station device sends a CC connection message to the mobile station device through the CC that is intermittently receiving, and continuously receives it on all CCs. After confirming that, the data is transmitted to the mobile station apparatus.
- Example 7 During the intermittent reception operations of the second to sixth embodiments, intermittent reception is not performed on all CCs, but intermittent reception operations are performed on one CC, and reception operations are stopped on other CCs.
- the power consumption during the intermittent reception operation has been reduced by releasing the connection, but a method of intermittent reception while performing the intermittent reception operation with all CCs will be described below.
- This can be realized by individually setting DRX parameters for each CC and setting a long DRX interval.
- the current maximum DRX interval is 2.56 seconds, and setting a value longer than this makes it appear that the CC stops the reception operation.
- the base station apparatus sets a long interval value such as a DRX interval of 10 seconds, 100 seconds, or 1000 seconds in some CCs.
- the base station apparatus sets the reception ON period when the DRX parameter (DRX interval, downlink control channel PDCCH reception ON period, and downlink control channel PDCCH reception ON period of the downlink control channel PDCCH is received for each CC.
- the extension period, the DRX start position, etc.) are notified to the mobile station apparatus.
- the mobile station apparatus starts DRX control from the DRX start position designated for each CC, and the mobile station apparatus performs an intermittent reception operation.
- the reception ON period is extended by the CC that has received the downlink PDCCH.
- the base station apparatus transmits data to the CC in the reception ON period.
- the base station apparatus When the base station apparatus wants to transmit a large amount of data to the mobile station apparatus, it sends a connection message for returning to continuous reception to the CC in the reception ON period of the mobile station apparatus.
- the mobile station apparatus receives a message for returning to continuous reception from the base station apparatus, the mobile station apparatus stops the DRX operation for all CCs and returns to continuous reception.
- the base station apparatus processes the message and determines that all CCs are in the reception state, the base station apparatus transmits data to all CCs, and the mobile station apparatus receives this data.
- the message returned to continuous reception at this time may be an upper layer message, or may be a flag such as 1 bit of a lower layer such as a MAC (Medium Access Control) layer in order to speed up processing.
- MAC Medium Access Control
- the base station apparatus operates with a DRX interval of 1.28 seconds in one CC, and 10.1 in one CC.
- the two CCs set at 102.4 seconds are almost in a reception stop state, Since one CC performs a DRX operation that is longer than usual, the same effect can be obtained as when CC reception is stopped or released. In this way, the power consumption is small because it is not different from performing a DRX operation with one CC.
- the configuration of the mobile station apparatus is the same as that of the mobile station apparatus described with reference to FIG.
- Embodiments 1 to 7 the description is made without distinguishing between Short DRX and Long DRX, but DRX control as described above may be performed from Short DRX, or from Long DRX.
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Abstract
Description
一方、3GPPでは、第三世代無線アクセスの進化(Evolved Universal Terrestrial Radio Access;以下、「EUTRA」と呼称する)の標準化が進められている。
この時、下りリンク制御チャネルPDCCHは、先頭のリソースブロックの中で1~3シンボル目を使用し、下りリンク共用チャネルPDSCHは、残りのOFDMシンボルを使用する。また、下りリンクパイロットチャネルDPiCHは、図21に示すようにリソースブロックの中でScattered(スキャッタード)形式で配置される。尚、図13は基地局装置の送信アンテナが2本の場合の例であり、2種類のパイロットシンボルが存在する例である。尚、複数のリソースブロックから下りリンクが構成される。
間欠受信モードは基地局装置から移動局装置に間欠受信に関するパラメータ(受信ON期間やDRX間隔、DRX開始位置など)が指定された後、連続受信モードで下りリンク制御チャネルPDCCH及び下りリンク共用チャネルPDSCHの受信の受信がなくなるとDRX開始位置から間欠受信モードに移行する。
そして、図17に示すように、Advanced-EUTRAでは、100MHzの帯域をEUTRAの移動局装置も収容できるようにEUTRAの20MHzの帯域を複数個束ねることで、100MHz帯域を実現することを考えている。尚、Advanced-EUTRAでは、EUTRAの1つの20MHzの帯域をコンポーネントキャリア(Component Carrier:CC)と呼んでいる。
図14のようなシステムを複数個(または、複数帯域)利用してできるシステムで図17の様なシステムを想定する。また、図15、図16で説明したように下りリンク共用チャネルPDSCH受信には連続受信モードと間欠受信(DRX:Discontinuous Reception)モードがある通信システムを想定する。尚、1つの帯域のことをコンポーネントキャリア(Component Carrier:CC)と呼ぶ。
この為、基地局装置がCC毎にDRXパラメータを送信し、移動局装置がCC毎にDRX制御を行った場合、CC毎に別々の動作を行ってしまうので、DRX効果はあまり無くなってしまう。よって、全CCで同じDRX動作をするようにすることで、DRXする効果が得られる。
基地局装置は、複数あるCCの内のいずれか1つのCCを通してDRXパラメータ(DRX間隔、下りリンク制御チャネルPDCCHの受信ON期間、下りリンク制御チャネルPDCCHの受信ON期間内に下りリンク制御チャネルPDCCHを受信した場合に受信ON期間を延ばす期間、DRX開始位置など)を移動局装置に通知する。移動局装置は、DRXパラメータを受信すると基地局装置から指示されたDRX開始位置からDRX制御を開始する。移動局装置は、基地局装置から渡さされたDRXパラメータを全CCに適用し、DRX開始位置から全CCに対して図1に示したようにDRX制御する。
尚、送信処理部12、受信処理部13は、図3、図4のように各CC毎に処理部が分かれており、DRX制御部17から各CC処理部に電源が供給され、受信ON状態または送信状態でないCCは電源が切られる。
実施例1では、全CCでDRX動作を行う例を示したが、本実施例では、間欠受信を行っている時は、1つのCCで間欠受信を行う例を示す。
基地局装置は、複数あるCCの内のいずれか1つのCCを通してDRXパラメータ(DRX間隔、下りリンク制御チャネルPDCCHの受信ON期間、下りリンク制御チャネルPDCCHの受信ON期間内に下りリンク制御チャネルPDCCHを受信した場合に受信ON期間を延ばす期間、DRX開始位置など)を移動局装置に通知する。移動局装置は、DRXパラメータを受信すると、DRXパラメータを受信したCCのみで、基地局装置から指示されたDRX開始位置からDRX制御を開始する。そして、移動局装置は、図5のように1つのCCのみで間欠受信動作を行う。尚、DRX制御をするCC以外の他のCCは、受信処理を行わない。
また、複数の受信ON期間に連続して下りリンク制御チャネルPDCCHを受信したり、ある特定の時間位置で下りリンク制御チャネルPDCCHを受信した場合に全CCで受信ON期間の延長をするようにしても良い。
本実施例では、間欠受信を行っている時は、1つのCCで間欠受信を行う例を示す。
基地局装置は、複数あるCCの内のいずれか1つのCCを通してDRXパラメータ(DRX間隔、下りリンク制御チャネルPDCCHの受信ON期間、下りリンク制御チャネルPDCCHの受信ON期間内に下りリンク制御チャネルPDCCHを受信した場合に受信ON期間を延ばす期間、DRX開始位置など)を移動局装置に通知する。移動局装置は、DRXパラメータを受信すると、DRXパラメータを受信したCCのみでDRX開始位置からDRX制御を開始する。尚、DRX制御をするCC以外の他のCCは、受信処理を行わない。
本実施例では、間欠受信を行っている時は、1つのCCで間欠受信を行う例を示す。
基地局装置は、複数あるCCの内のいずれか1つのCCを通してDRXパラメータ(DRX間隔、下りリンク制御チャネルPDCCHの受信ON期間、下りリンク制御チャネルPDCCHの受信ON期間内に下りリンク制御チャネルPDCCHを受信した場合に受信ON期間を延ばす期間、DRX開始位置など)を移動局装置に通知する。移動局装置は、DRXパラメータを受信すると、DRXパラメータを受信したCCのみでDRX開始位置から間欠受信動作を開始する。尚、移動局装置は、間欠受信動作を行うCC以外の他のCCでは、受信処理を行わない。
尚、実施例2から4の移動局装置の構成は図2で説明した移動局装置の構成と同じである。
実施例4では、連続受信は全CCで動作し、間欠受信中は1つのCCで動作する例を示したが、本実施例では、間欠受信動作中は1つのCCで動作し、その他のCCは解放する例を示す。
基地局装置は、複数あるCCの内のいずれか1つのCCを通してDRXパラメータ(DRX間隔、下りリンク制御チャネルPDCCHの受信ON期間、下りリンク制御チャネルPDCCHの受信ON期間内に下りリンク制御チャネルPDCCHを受信した場合に受信ON期間を延ばす期間、DRX開始位置など)を移動局装置に通知する。移動局装置は、DRXパラメータを受信すると、DRXパラメータを受信したCCのみでDRX開始位置からDRX制御を開始する。尚、移動局装置は間欠受信動作を行うCC以外の他のCCは、受信処理を行わない。更に前記の間欠受信動作を行わないCCについては、基地局装置との接続も切断する。
無線部11、送信処理部12、受信処理部13、送信データ制御部14、制御データ抽出部16の動作は、図2で示した移動局装置の動作と同じである。
DRX制御部17は、各処理部の電源管理を行い、スケジューリング部18から渡されたDRXパラメータで、無線部11、送信処理部12、受信処理部13等の電源管理を行う。DRX開始位置からDRX動作を開始して、受信ON期間に無線部11、受信処理部13の電源を入れる。そして、制御データ抽出部16から下りリンク制御チャネルPDCCHを受信した報告があった場合、受信ON延長期間分、受信ON期間を延ばす。また、基地局装置へのデータ送信がある場合に送信処理部12に電源を入れる。また、スケジューリング部18からの指示により、各処理部への電源管理を行う。尚、図示していないが、DRX制御部17は、送信データ制御部14、制御データ抽出部16、スケジューリング部18の電源制御も行っても良い。
尚、送信処理部12、受信処理部13は、図3、図4のように各CC毎に処理部が分かれており、DRX制御部17から各CC処理部に電源が供給され、受信ON状態または送信状態でないCCは電源が切られる。
実施例5では、間欠受信動作を行っていないCCについては、基地局装置との接続を解放していた例を示したが、本実施例では、基地局装置との接続を解放するタイミングを個々のCC毎に設定する例を示す。
移動局装置が通常受信状態から間欠受信状態に移行した段階では、まだ、データ受信の頻度は多くなる可能性があるが、長い期間のDRX受信状態の場合、大量のデータ受信の可能性は少ない。つまり、DRX受信状態に移行した初期の期間は、複数のCCでDRX受信をして、順次、使用するCCを少なくすることで消費電力の削減になる。
基地局装置は、移動局装置がメッセージの処理を行い、全CCが受信状態になったと判断した場合に全CCにデータを送信し、移動局装置がこのデータを受信する。この様にすることで、基地局装置が全CCに下りリンク制御チャネルPDCCHを送信しなくても、1つの下りリンク制御チャネルPDCCHを送信し、移動局装置は1つの下りリンク制御チャネルPDCCHを受信するだけで、全CCに対して受信状態を設定でき、基本的にDRX制御している間は、1つのCCのみだけで下りリンク制御チャネルPDCCHのモニタリングを行うので、全CCでモニタリングするよりも消費電力は少なく済む。また、受信処理を行わないCCにおいても移動局装置は、定期的に接続している基地局装置や他の基地局装置の無線品質の測定を行っている。この無線リンクの品質測定を行わなくてもよくなり、消費電力の低減になる。
尚、本実施例では、全CCにおいて共通のDRXパラメータとしたが、CC毎にDRXのパラメータが異なってもよい。これは、CC毎に有効期間を設定しているので、個別に動作しても問題ない。
無線部11、送信処理部12、受信処理部13、送信データ制御部14、スケジューリング部18、制御データ抽出部16、DRX制御部17から構成する。スケジューリング部18において、制御データ作成部181、制御データ解析部182、ULスケジューリング部183の動作は同じである。
CC管理部184は、CCの設定、解放を管理する。CCが設定された場合、DRX制御部17に設定されたCC処理部へ電源供給するように指示する。基地局装置から指示されたDRX後の各CCの有効な期間が過ぎた場合に有効期間の過ぎたCCを処理している各処理部への電源供給を停止するように指示する。
実施例2~6までの間欠受信動作中においては、全CCで間欠受信を行うのではなく、1つのCCで間欠受信動作を行い、その他のCCでは受信動作を停止させたり、基地局装置との接続を解放したりして、間欠受信動作時の消費電力を低減させていたが、全CCで間欠受信動作をさせながら、間欠受信する方法を以下に説明する。
これは、各CCに対してDRXパラメータを個別に設定し、長いDRX間隔を設定することで実現できる。現状の最大のDRX間隔は2.56秒であり、これよりも長い値を設定することで、CCが受信動作を停止させるように見せることができる。例えば、基地局装置は、DRX間隔が、10秒、100秒、1000秒のような長い間隔値をいくつかのCCに設定する。
Claims (10)
- 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置において、
間欠受信時には、1つの間欠受信パラメータを移動局装置が利用している全コンポーネントキャリアに対して適用し、全コンポーネントキャリアで制御チャネルをモニタリングする動作を行い、受信ON期間に1つ以上のコンポーネントキャリアで自移動局装置宛の制御チャネルを受信した場合に、全コンポーネントキャリアで受信ON期間を延長する移動局装置。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置において、
間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアでは、制御チャネルのモニタリングを行なわない動作を行い、受信ON期間に自移動局装置宛の制御データを受信した場合に、受信ON延長期間に接続している全コンポーネントキャリアで受信動作を行う移動局装置。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置において、
間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアでは、制御チャネルのモニタリングを行なわない動作を行い、受信ON期間に自移動局装置宛の制御チャネルを受信した場合に、次の受信ON期間に接続している全コンポーネントキャリアで受信動作を行う移動局装置。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置において、
間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアは基地局装置との接続を解放する移動局装置。 - 複数のコンポーネントキャリアを使用して基地局装置と移動局装置が接続している通信システムにおいて、基地局装置が移動局装置にRRCメッセージで間欠受信動作を指示し、移動局装置が間欠受信を行っている場合に、基地局装置が移動局装置にMACメッセージを送信して、間欠受信動作を停止させる通信システム。
- 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置による間欠受信方法において、
前記移動局装置が、間欠受信時には、1つの間欠受信パラメータを該移動局装置が利用している全コンポーネントキャリアに対して適用し、全コンポーネントキャリアで制御チャネルをモニタリングする動作を行い、受信ON期間に1つ以上のコンポーネントキャリアで自移動局装置宛の制御チャネルを受信した場合に、全コンポーネントキャリアで受信ON期間を延長する間欠受信方法。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置による間欠受信方法において、
前記移動局装置が、間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアでは、制御チャネルのモニタリングを行なわない動作を行い、受信ON期間に自移動局装置宛の制御データを受信した場合に、受信ON延長期間に接続している全コンポーネントキャリアで受信動作を行う間欠受信方法。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置による間欠受信方法において、
前記移動局装置が、間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアでは制御チャネルのモニタリングを行なわない動作を行い、受信ON期間に自移動局装置宛の制御チャネルを受信した場合に、次の受信ON期間に接続している全コンポーネントキャリアで受信動作を行う間欠受信方法。 - 複数のコンポーネントキャリアを使用して基地局装置と接続している移動局装置による間欠受信方法おいて、
前記移動局装置が、間欠受信時には、1つのコンポーネントキャリアで制御チャネルをモニタリングする動作を行い、その他のコンポーネントキャリアは基地局装置との接続を解放する間欠受信方法。 - 複数のコンポーネントキャリアを使用して基地局装置と移動局装置が接続している通信システムで前記移動局装置が間欠受信を行うための間欠受信方法において、基地局装置が移動局装置にRRCメッセージで間欠受信動作を指示し、移動局装置が間欠受信を行っている場合に、基地局装置が移動局装置にMACメッセージを送信して、間欠受信動作を停止させる間欠受信方法。
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2011040516A1 (ja) * | 2009-10-02 | 2011-04-07 | 日本電気株式会社 | 無線通信システム、無線端末、無線基地局、無線通信方法、及びプログラム |
WO2012147640A1 (ja) * | 2011-04-27 | 2012-11-01 | シャープ株式会社 | 基地局、端末、通信システム、通信方法および集積回路 |
JP2012235470A (ja) * | 2011-05-06 | 2012-11-29 | Innovative Sonic Corp | キャリアアグリゲーション(ca)における時分割多重(tdd)及び周波数分割多重(fdd)モードに対する間欠受信(drx)動作の改善方法及び装置 |
JP2012257243A (ja) * | 2011-05-23 | 2012-12-27 | Innovative Sonic Corp | 時分割多重(tdd)モードにおけるバンド間キャリアアグリゲーション(ca)を改善する方法及び装置 |
WO2014208622A1 (ja) * | 2013-06-26 | 2014-12-31 | シャープ株式会社 | 無線通信システム、基地局装置、端末装置、無線通信方法および集積回路 |
JP2015167419A (ja) * | 2009-04-27 | 2015-09-24 | 日本電気株式会社 | キャリアアグリゲーションのための通信デバイスの制御 |
US9271281B2 (en) | 2011-05-06 | 2016-02-23 | Innovation Sonic Corporation | Method and apparatus to improve inter-band carrier aggregation (CA) in TDD (time division duplex) mode |
JP2019517200A (ja) * | 2016-05-13 | 2019-06-20 | 華為技術有限公司Huawei Technologies Co.,Ltd. | ダウンリンク制御情報送信方法および装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9113416B2 (en) * | 2010-11-10 | 2015-08-18 | Qualcomm Incorporated | System and method for reducing overhead of searcher tasks for discontinuous reception |
EP2749099B1 (en) * | 2011-09-08 | 2019-12-11 | Telefonaktiebolaget LM Ericsson (publ) | Method in a base station, a base station, computer programs and computer readable means |
US10492176B2 (en) | 2013-08-02 | 2019-11-26 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods, network node, wireless device, computer programs and computer program products for use with discontinuous reception |
EP3122140A4 (en) * | 2014-03-19 | 2017-11-15 | Sharp Kabushiki Kaisha | Terminal device, base station device, communication system, communication method, and integrated circuit |
US10334447B2 (en) * | 2015-02-27 | 2019-06-25 | Qualcomm Incorporated | Discontinuous reception procedures with enhanced component carriers |
US10159108B2 (en) * | 2015-04-10 | 2018-12-18 | Motorola Mobility Llc | DRX handling in LTE license assisted access operation |
US11956753B2 (en) * | 2015-07-10 | 2024-04-09 | Qualcomm Incorporated | Common search space for machine type communications |
EP3446423B1 (en) | 2016-04-19 | 2021-09-22 | Telefonaktiebolaget LM Ericsson (PUBL) | Applying more robust transmission procedure |
CN112312522B (zh) * | 2019-08-01 | 2022-03-29 | 大唐移动通信设备有限公司 | 节能下行控制信道信息的传输方法、终端及网络侧设备 |
US12041000B2 (en) | 2021-08-05 | 2024-07-16 | Qualcomm Incorporated | Techniques for communicating data channel transmissions |
US11985597B2 (en) * | 2021-08-05 | 2024-05-14 | Qualcomm Incorporated | Techniques for aperiodic discontinuous reception mode communications |
WO2023210008A1 (ja) * | 2022-04-28 | 2023-11-02 | 株式会社Nttドコモ | 端末、基地局、無線通信システム及び無線通信方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003259448A (ja) * | 2002-02-28 | 2003-09-12 | Sony Corp | 無線通信方法、無線通信システム、無線基地局、無線通信端末、プログラム及び媒体 |
WO2008001726A1 (fr) * | 2006-06-26 | 2008-01-03 | Panasonic Corporation | Terminal de radiocommunications, station de base de radiocommunications et procédé de radiocommunications |
WO2008054103A1 (en) * | 2006-10-30 | 2008-05-08 | Lg Electronics Inc. | Method for transitioning between multiple reception levels |
JP2008306267A (ja) * | 2007-06-05 | 2008-12-18 | Sharp Corp | 移動局装置、基地局装置、通信システム、プログラム及び通信方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2127420B1 (en) * | 2007-01-30 | 2015-07-22 | InterDigital Technology Corporation | Implicit drx cycle length adjustment control in lte_active mode |
US7898995B2 (en) | 2007-02-21 | 2011-03-01 | Qualcomm, Incorporated | Dynamic adjustment of inactivity timer threshold for call control transactions |
KR20080084533A (ko) * | 2007-03-16 | 2008-09-19 | 엘지전자 주식회사 | 이동통신 시스템에서의 데이터 통신 방법 |
CN101272529B (zh) * | 2007-03-20 | 2011-12-21 | 华为技术有限公司 | 一种非连续接收方法、装置与系统 |
AU2008287763B2 (en) * | 2007-08-15 | 2013-08-22 | Ntt Docomo, Inc. | Mobile communication system and mobile station |
US8340121B2 (en) * | 2007-08-22 | 2012-12-25 | Qualcomm Incorporated | Method and apparatus for transmission of circuit switched voice over packet switched networks |
WO2009033253A1 (en) * | 2007-09-14 | 2009-03-19 | Research In Motion Limited | System and method for discontinuous reception control start time |
US8526377B2 (en) * | 2008-03-25 | 2013-09-03 | Telefonaktiebolaget Lm Ericsson (Publ) | DRX functionality in multi-carrier wireless networks |
WO2010044721A1 (en) * | 2008-10-17 | 2010-04-22 | Telefonaktiebolaget L M Ericsson (Publ) | Method for improving battery life and harq retransmissions in wireless communications systems |
EP3554170A1 (en) * | 2008-10-20 | 2019-10-16 | InterDigital Patent Holdings, Inc. | Carrier aggregation |
US8514793B2 (en) | 2008-10-31 | 2013-08-20 | Interdigital Patent Holdings, Inc. | Method and apparatus for monitoring and processing component carriers |
WO2010078365A1 (en) * | 2008-12-30 | 2010-07-08 | Interdigital Patent Holdings, Inc. | Discontinuous reception for carrier aggregation |
US8867441B2 (en) * | 2009-01-14 | 2014-10-21 | Lg Electronics Inc. | Wireless apparatus for a multi-carrier system |
KR101717522B1 (ko) * | 2009-04-27 | 2017-03-17 | 엘지전자 주식회사 | 다중 반송파를 지원하는 무선 통신 시스템에서 하향링크 제어채널을 모니터링하는 방법 및 장치 |
-
2010
- 2010-01-20 US US13/254,737 patent/US9100141B2/en active Active
- 2010-01-20 CA CA2754057A patent/CA2754057C/en active Active
- 2010-01-20 EP EP10748564.1A patent/EP2405691B1/en active Active
- 2010-01-20 WO PCT/JP2010/050609 patent/WO2010100966A1/ja active Application Filing
- 2010-01-20 CN CN201410648213.5A patent/CN104540191B/zh active Active
- 2010-01-20 CN CN201080011804.1A patent/CN102342158B/zh not_active Expired - Fee Related
- 2010-01-20 KR KR1020117021500A patent/KR101307028B1/ko active IP Right Grant
- 2010-01-20 JP JP2011502679A patent/JP5048157B2/ja active Active
-
2012
- 2012-07-17 JP JP2012158436A patent/JP2012195979A/ja active Pending
-
2014
- 2014-04-30 JP JP2014093313A patent/JP5702877B2/ja not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003259448A (ja) * | 2002-02-28 | 2003-09-12 | Sony Corp | 無線通信方法、無線通信システム、無線基地局、無線通信端末、プログラム及び媒体 |
WO2008001726A1 (fr) * | 2006-06-26 | 2008-01-03 | Panasonic Corporation | Terminal de radiocommunications, station de base de radiocommunications et procédé de radiocommunications |
WO2008054103A1 (en) * | 2006-10-30 | 2008-05-08 | Lg Electronics Inc. | Method for transitioning between multiple reception levels |
JP2008306267A (ja) * | 2007-06-05 | 2008-12-18 | Sharp Corp | 移動局装置、基地局装置、通信システム、プログラム及び通信方法 |
Non-Patent Citations (1)
Title |
---|
YLVA JADING ET AL.: "Mobile Broadband, from LTE towards LTE-Advanced", 2008 NEN IEICE COMMUNICATIONS SOCIETY CONFERENCE BT-4-4, 2 September 2008 (2008-09-02), pages SS-49, XP008167905 * |
Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015167419A (ja) * | 2009-04-27 | 2015-09-24 | 日本電気株式会社 | キャリアアグリゲーションのための通信デバイスの制御 |
US11147054B2 (en) | 2009-04-27 | 2021-10-12 | Nec Corporation | Communication system |
US10542532B2 (en) | 2009-04-27 | 2020-01-21 | Nec Corporation | Communications system |
US11889524B2 (en) | 2009-04-27 | 2024-01-30 | Nec Corporation | Communications system |
US9888464B2 (en) | 2009-04-27 | 2018-02-06 | Nec Corporation | Communications system |
WO2011040516A1 (ja) * | 2009-10-02 | 2011-04-07 | 日本電気株式会社 | 無線通信システム、無線端末、無線基地局、無線通信方法、及びプログラム |
US9042248B2 (en) | 2009-10-02 | 2015-05-26 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
JP2015039211A (ja) * | 2009-10-02 | 2015-02-26 | 日本電気株式会社 | 無線通信システム、無線端末、無線基地局及び無線通信方法 |
US9629082B2 (en) | 2009-10-02 | 2017-04-18 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
US9749952B2 (en) | 2009-10-02 | 2017-08-29 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
US11792731B2 (en) | 2009-10-02 | 2023-10-17 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
US10912029B2 (en) | 2009-10-02 | 2021-02-02 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
US10924994B2 (en) | 2009-10-02 | 2021-02-16 | Nec Corporation | Radio communication system, radio terminals, radio base stations, radio communication method and program |
WO2012147640A1 (ja) * | 2011-04-27 | 2012-11-01 | シャープ株式会社 | 基地局、端末、通信システム、通信方法および集積回路 |
US9271281B2 (en) | 2011-05-06 | 2016-02-23 | Innovation Sonic Corporation | Method and apparatus to improve inter-band carrier aggregation (CA) in TDD (time division duplex) mode |
JP2012235470A (ja) * | 2011-05-06 | 2012-11-29 | Innovative Sonic Corp | キャリアアグリゲーション(ca)における時分割多重(tdd)及び周波数分割多重(fdd)モードに対する間欠受信(drx)動作の改善方法及び装置 |
JP2012257243A (ja) * | 2011-05-23 | 2012-12-27 | Innovative Sonic Corp | 時分割多重(tdd)モードにおけるバンド間キャリアアグリゲーション(ca)を改善する方法及び装置 |
WO2014208622A1 (ja) * | 2013-06-26 | 2014-12-31 | シャープ株式会社 | 無線通信システム、基地局装置、端末装置、無線通信方法および集積回路 |
JP2019517200A (ja) * | 2016-05-13 | 2019-06-20 | 華為技術有限公司Huawei Technologies Co.,Ltd. | ダウンリンク制御情報送信方法および装置 |
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