WO2011145511A1 - 移動局、無線基地局及び通信制御方法 - Google Patents
移動局、無線基地局及び通信制御方法 Download PDFInfo
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- WO2011145511A1 WO2011145511A1 PCT/JP2011/060990 JP2011060990W WO2011145511A1 WO 2011145511 A1 WO2011145511 A1 WO 2011145511A1 JP 2011060990 W JP2011060990 W JP 2011060990W WO 2011145511 A1 WO2011145511 A1 WO 2011145511A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
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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—Signalling for the administration of the divided path, e.g. signalling of configuration information
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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—Signalling for the administration of the divided path, e.g. signalling of configuration information
- 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. Transmission Power Control [TPC] 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 leader and terminal is follower
- H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is leader and terminal is follower 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. Transmission Power Control [TPC] 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
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] 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
- H04W52/0241—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where no transmission is received, e.g. out of range of the transmitter
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
- H04W52/0254—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity detecting a user operation or a tactile contact or a motion of the device
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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
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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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
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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
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
- H04W88/06—Terminal devices adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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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, a radio base station, and a communication control method.
- WCDMA Wideband code division multiple access
- HSDPA High-Speed Downlink Packet Access
- HSUPA High-speed uplink packet access
- LTE Long Term Evolution
- the LTE-advanced method is being studied by 3GPP.
- the requirements of the LTE-advanced scheme are summarized in 3GPP TS36.913 (V8.0.1).
- carrier aggregation is performed as a requirement.
- the mobile station UE can receive a downlink signal using a plurality of carriers at the same time, or can transmit an uplink signal using a plurality of carriers at the same time.
- Each carrier in the case where carrier aggregation is performed is referred to as a component carrier.
- the plurality of component carriers are classified into a primary component carrier that is a main carrier and other secondary component carriers.
- the communication using the primary component carrier and the secondary component carrier means that in addition to normal data transmission / reception, cell search and measurement in each component carrier, and radio link monitoring (Radio Link Monitoring) included.
- the cell search refers to establishing downlink synchronization using, for example, a downlink synchronization signal (Synchronization Signal) of a serving cell and an adjacent cell. Since the cell search is a process of detecting a destination cell in a state where the mobile station UE is moving, the mobile station UE needs to periodically perform a cell search.
- the measurement refers to, for example, measuring received power of a reference signal of a serving cell and an adjacent cell, more specifically, RSRP (Reference Signal Received Power) and the like.
- the cell search and the measurement process may be combined and called a measurement.
- the radio link monitoring refers to radio quality of a reference signal of a serving cell, more specifically, SIR (Signal-to-Interference Ratio) is measured, and whether or not the SIR is equal to or higher than a required threshold value.
- SIR Signal-to-Interference Ratio
- This is a process for determining that the serving cell is out-of-synchronization when it is equal to or less than a required threshold value.
- the processing related to the cell search, measurement, and radio link monitoring, and the performance specifications are, for example, 3GPP TS36.213 V8.8.0 (2009-09), 3GPP TS36.133 V8.7.0 (2009-09) It is described in.
- control called Activation / De-activation in the secondary component carrier In order to improve the above-described problem of power consumption, for example, it is considered to apply control called Activation / De-activation in the secondary component carrier.
- the mobile station UE does not transmit / receive normal data, and the frequency of the cell search, measurement, and radio link monitoring processes described above is also increased. Save battery by reducing.
- the above-described processing related to De-activation of the secondary component carrier is performed, for example, when the amount of data to be communicated is small.
- discontinuous reception (DRX) control for the purpose of battery saving of a UE of a mobile station is applied (3GPP TS36.321 V8.7.0 (2009-09)).
- the intermittent reception control in LTE is applied when the radio base station eNB and the mobile station UE are connected and there is no data to be communicated.
- the mobile station UE in the intermittent reception state is periodically That is, it is configured to intermittently receive a downlink control signal transmitted via a physical downlink control channel (PDCCH: Physical Downlink Control Channel).
- PDCCH Physical Downlink Control Channel
- the time for receiving the downlink control signal transmitted via the PDCCH is called On-duration (ON section, receiving section).
- On-duration On section, receiving section.
- the mobile station UE may receive the downlink control signal transmitted via the physical downlink control channel PDCCH intermittently, not at all timings, and intermittently perform the cell search, measurement, radio Since it is only necessary to monitor the link, the power consumption of the battery can be reduced.
- the mobile station UE performs physical downlink only in a reception interval (5 ms in the example of FIG. 1) set every DRX cycle (1280 ms in the example of FIG. 1). It is configured to perform reception of the link control channel PDCCH, cell search, measurement, monitoring of a radio link, and the like, and to turn off other transceivers. As a result, the mobile station UE can reduce the power consumption of the battery.
- a measurement gap for measuring carriers of different frequencies and carriers of different radio communication systems is defined (3GPP TS36.331 V8.8.0 (2009-12)).
- the size of the measurement gap is 6 ms, and the period is set to 40 ms or 80 ms, for example.
- the mobile station UE stops communication with the serving cell during the measurement gap, and measures the carrier of the different frequency or the carrier of a different radio communication system.
- De-activation is applied to the secondary component carrier when performing carrier aggregation.
- the mobile station UE communicates only with the primary component carrier in a normal state, and only when the above-described cell search, measurement, and radio link monitoring are performed in the secondary component carrier, the primary component carrier and the secondary component carrier. You will communicate with both.
- the mobile station UE performs communication with only the primary component carrier and when it communicates with both the primary component carrier and the secondary component carrier. Need to be switched.
- the primary component carrier when switching between a state in which communication is performed only with the primary component carrier and a state in which communication is performed with both the primary component carrier and the secondary component carrier.
- the fact that the data cannot be transmitted / received may mean that, for example, data intended to be transmitted / received is lost.
- the radio base station eNB determines when the above-mentioned data loss occurs. I can't figure it out.
- the present invention has been made in view of the above-mentioned problems, and by performing cell search and measurement of each component carrier appropriately while performing battery saving at the time of carrier aggregation, It is an object of the present invention to provide a mobile station, a radio base station, and a communication control method that can realize efficiency and stability of connectivity.
- the mobile station of the present invention A mobile station that communicates with a radio base station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The first communication unit is configured to regard a section before and after an ON section of a carrier in the intermittent reception state as a measurement gap.
- the communication control method of the present invention includes: A communication control method in a mobile station that communicates with a radio base station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first step of communicating with a carrier that is not in the intermittent reception state; A second step of communicating with the carrier in the intermittent reception state, In the first step, a section before and after an ON section of the carrier in the intermittent reception state is regarded as a measurement gap.
- the radio base station of the present invention is A radio base station that communicates with a mobile station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The first communication unit is configured to regard a section before and after an ON section of a carrier in the intermittent reception state as a measurement gap.
- the communication control method of the present invention includes: A communication control method in a radio base station that communicates with a mobile station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first step of communicating with a carrier that is not in the intermittent reception state; A second step of communicating with the carrier in the intermittent reception state, In the first step, a section before and after an on section of the carrier in the intermittent reception state is regarded as a measurement gap.
- the mobile station of the present invention A mobile station that communicates with a radio base station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The second communication unit regards a section before and after the on-section of the carrier in the intermittent reception state as a measurement gap, and in the intermittent reception state in a section before the on-section of the carrier in the intermittent reception state. It is characterized by being configured to perform a measurement related to a certain carrier.
- the present invention during carrier aggregation, while performing battery saving and appropriately performing cell search and measurement of each component carrier, system efficiency and connection It is possible to provide a mobile station, a radio base station, and a communication control method that can realize stability of performance.
- the mobile communication system according to the present embodiment is a system to which, for example, the LTE-Advanced scheme is applied. That is, the mobile communication system according to the present embodiment includes a radio base station eNB and a mobile station UE that communicates with the radio base station eNB, and the radio base station eNB and the mobile station UE use the LTE-Advanced scheme. Communicate. Note that the mobile station UE may be referred to as a user apparatus.
- the “physical downlink shared channel (PDSCH) shared by each mobile station UE” and “physical downlink control channel (PDCCH: Physical Downlink Control)” are shared. Channel) ”is used.
- PDSCH physical downlink shared channel
- the ID of the mobile station UE that communicates using the “physical downlink shared channel (PDSCH)” via the “physical downlink control channel (PDCCH)” and the information on the transport format of the user data (that is, the downlink) Scheduling information) and control signals such as the ID of the mobile station UE that communicates using the “physical uplink shared channel (PUSCH)” and information on the transport format of user data (ie, uplink scheduling grant) are notified. .
- PDCCH Physical downlink control channel
- DCI downlink control information
- broadcast information is mapped to “BCCH: Broadcast Control Channel” as a logical channel and transmitted.
- BCH Broadcast Channel
- P- Physical Broadcast Channel
- DL-SCH Downlink Shared Channel
- PDSCH physical downlink shared channel
- PUSCH physical uplink shared channel
- PUCCH physical uplink control channel
- PUSCH Physical uplink shared channel
- the “Physical Uplink Control Channel (PUCCH)” allows downlink processing for use in scheduling processing, adaptive modulation / demodulation and coding processing (AMCS: Adaptive Modulation and Coding Scheme) of “Physical Downlink Shared Channel (PDSCH)”.
- ACS Adaptive Modulation and Coding Scheme
- PDSCH Physical Downlink Shared Channel
- Quality information CQI: Channel Quality Indicator
- delivery confirmation information Acknowledgement Information
- Such downlink quality information may be referred to as “CSI (Channel State Indicator)” which is an indicator that summarizes “CQI”, “PMI (Pre-coding Matrix Indicator)”, and “RI (Rank Indicator)”. .
- CSI Channel State Indicator
- PMI Pre-coding Matrix Indicator
- RI Rank Indicator
- the contents of the delivery confirmation information include an acknowledgment (ACK: Acknowledgment) indicating that the transmission signal has been properly received or a negative acknowledgment (NACK: Negative Acknowledgment) indicating that the transmission signal has not been properly received. It is expressed by either.
- ACK Acknowledgment
- NACK Negative Acknowledgment
- the above-described operation related to the communication channel used in the mobile communication system according to the present embodiment may be performed in one component carrier when carrier aggregation described later is performed, or may be performed on a plurality of component carriers. It may be performed across.
- downlink scheduling information may be transmitted on a certain component carrier, and a physical downlink shared channel corresponding to the downlink scheduling information may be transmitted on another component carrier.
- the uplink scheduling grant may be transmitted on a certain component carrier, and the physical uplink shared channel corresponding to the uplink scheduling grant may be transmitted on another component carrier.
- Carrier (Aggregation” may be applied. That is, communication using a plurality of “component carriers” is performed in the uplink or the downlink.
- component carrier corresponds to one system carrier in the LTE system. That is, in the LTE scheme, communication is performed using one “component carrier”. However, in the LTE-Advanced scheme, communication may be performed using two or more “component carriers”.
- the first communication area and the second communication area are almost completely overlapped geographically, but instead may be geographically overlapped at least partially.
- a third component carrier may exist in addition to the first component carrier and the second component carrier. Alternatively, there may be four or more component carriers.
- carrier aggregation is performed using a first component carrier (hereinafter referred to as a first carrier) and a second component carrier (hereinafter referred to as a second carrier).
- first carrier hereinafter referred to as a first carrier
- second carrier hereinafter referred to as a second carrier
- intermittent reception control is performed for each component carrier, the first carrier is not in the intermittent reception state (non-DRX state), and the second carrier is in DRX.
- the first carrier data transmission / reception is performed as usual, and cell search, measurement, and radio link monitoring are also performed without reducing the frequency.
- data transmission / reception is basically not performed on the second carrier, and cell search, measurement, and monitoring of the radio link are performed with a reduced frequency. Note that monitoring of the radio link may not be performed.
- the mobile station UE can reduce the processing load for the second carrier, that is, the processing load for cell search, measurement, and radio link monitoring described above, it is possible to perform battery saving. .
- the first carrier may be a primary component carrier.
- the second carrier may be a secondary component carrier.
- the above-mentioned Non-DRX state is a state in which parameters related to intermittent reception control are not set, or a parameter related to intermittent reception control is set, and a timer for intermittent reception control operates. Or a parameter related to intermittent reception control is set, a scheduling request is pending, or a parameter related to intermittent reception control is set, and uplink HARQ retransmission is performed. After receiving the random access response for the specified preamble and the parameter related to intermittent reception control, the downlink control signal for new transmission addressed to the local station is received. It may be at least one of the states that are not. Further, the DRX state may be a state other than the Non-DRX state described above.
- the above-described DRX state may be a state in which data transmission / reception is intermittently performed, or a state in which data transmission / reception and measurement of the carrier are intermittently performed. May be.
- the DRX state mentioned above may be the state where the measurement of the said carrier is intermittently performed more generally.
- an on-duration (ON section) is set for each DRX cycle.
- the section that is on-duration is called section A
- the section that is not on-duration is called section B.
- the DRX cycle may be, for example, 256 ms, 512 ms, or 1280 ms. Alternatively, the DRX cycle may be a value other than the above, for example.
- the DRX cycle controls how much battery saving can be performed in the mobile station UE.
- the mobile station UE Only in the section A, the mobile station UE is configured to perform cell search and measurement on the second carrier, monitoring of the radio link, and the like, and receive a downlink control signal transmitted via the PDCCH. Also, the mobile station UE is configured not to perform cell search and measurement regarding the second carrier, radio link monitoring, and reception of downlink control signals in the section B. With the above-described operation, the mobile station UE performs the above-described process regarding the second carrier only in the section A, and thus can perform battery saving.
- the downlink control signal is, for example, the above-described downlink scheduling information or uplink scheduling grant.
- the mobile station UE is a component carrier that is not in the intermittent reception state with respect to the first carrier, regardless of the sections A and B, normal data transmission / reception in the first carrier and cell search for the first carrier And monitoring of radio links.
- a receiver switching section is set before and after the on-duration in the intermittent reception control.
- the mobile station UE and the radio base station eNB can change the center frequency of the receiver of the mobile station UE in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier. Therefore, communication processing in the first carrier may be performed on the assumption that data transmission / reception is not possible in the first carrier.
- a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, the receiver switching section is hereinafter referred to as an on-duration gap section.
- such communication processing may include, for example, processing such as measurement and cell search related to the first carrier, and monitoring of a radio link, in addition to transmission and reception of data on the first carrier.
- the transmission / reception of data in the first carrier is reception of data in the downlink and transmission of data in the uplink for the mobile station UE, and transmission of data in the downlink for the radio base station eNB, and The reception of data in the uplink may be possible.
- the measurement and cell search processes may be collectively referred to as measurement.
- the mobile station UE does not perform downlink reception, uplink transmission, cell search, measurement gap, and radio link monitoring on the first carrier in the receiver switching section. It may be configured. Further, the radio base station eNB may be configured not to perform downlink transmission and uplink reception regarding the mobile station UE in the first carrier in the receiver switching section. Furthermore, the radio base station eNB performs scheduling related to the uplink and the downlink in the first carrier so that the downlink transmission and the uplink reception in the first carrier are not performed in the receiver switching section. It may be configured as follows.
- the mobile station UE and the radio base station eNB may be configured to perform communication processing in the first carrier, regarding such a receiver switching section as a section corresponding to a measurement gap.
- the communication processing in the first carrier is performed, for example, as described above, in the receiver switching section, It may mean that data transmission / reception in one carrier, cell search, measurement, radio link monitoring, etc. are not performed.
- the measurement gap may be a time interval provided for measuring carriers of different frequencies or carriers of different wireless communication systems.
- the mobile station UE and the radio base station eNB are in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap section, the mobile station UE Since the receiver performs center frequency switching or the like, the second carrier may perform communication processing on the assumption that data transmission / reception is not possible on the second carrier.
- Such communication processing may include, for example, processing such as transmission / reception of data in the second carrier.
- the transmission / reception of data in the second carrier is reception of data in the downlink and transmission of data in the uplink for the mobile station UE, and transmission of data in the downlink for the radio base station eNB, and The reception of data in the uplink may be possible.
- the mobile station UE may be configured not to perform downlink reception and uplink transmission in the second carrier in the receiver switching section.
- the radio base station eNB may be configured not to perform downlink transmission and uplink reception regarding the mobile station UE in the second carrier in the receiver switching section.
- the radio base station eNB performs scheduling related to the uplink and downlink in the second carrier so that downlink transmission and uplink reception in the second carrier are not performed in the receiver switching section. It may be configured as follows.
- the mobile station UE and the radio base station eNB may perform communication processing on the second carrier by regarding the receiver switching section as a section corresponding to a measurement gap.
- the communication processing in the second carrier is performed, for example, as described above, in the receiver switching section, It may mean that data transmission / reception, cell search, measurement, radio link monitoring, etc. are not performed on two carriers.
- the measurement gap may be a time interval provided for measuring carriers of different frequencies or carriers of different wireless communication systems.
- the transmitter is switched in addition to the receiver. May be referred to as a transceiver switching section.
- a measurement gap accompanying the on-duration.
- the predetermined section set before and after the above-described on-duration may be called a measurement gap in the same manner as a normal measurement gap.
- the predetermined interval set before and after the on-duration may be, for example, 1 ms or 2 ms, respectively.
- the on-duration gap interval may be a value other than 1 ms or 2 ms.
- the size of a predetermined section set before and after the on-duration that is, the section set before the on-duration in the gap section for on-duration is as shown in FIG. It may be larger than the size of the section set after the duration. The effect of making the size of the section set before the on-duration larger than the size of the section set after the on-duration will be described later.
- the predetermined section set before the on-duration and the predetermined section set after the on-duration may be, for example, 6 ms and 1 ms, respectively.
- the predetermined section set before the on-duration and the predetermined section set after the on-duration may be, for example, 4 ms and 2 ms, respectively, or the on As long as the size of the predetermined section set before the -duration is larger than the size of the predetermined section set after the on-duration, other values may be used.
- the predetermined section set before and after the above-described on-duration that is, the on-duration gap section is applied only when the first carrier and the second carrier belong to the same frequency band, and the first carrier And the second carrier may not be applied when they belong to different frequency bands.
- the on-duration gap section is set, and when the first carrier and the second carrier belong to different frequency bands, By not setting the on-duration gap section, the on-duration gap section can be set only when necessary, and the efficiency of the system can be further improved.
- the on-duration in the second carrier exists only when the second carrier is in the DRX state, and does not exist when the second carrier is in the non-DRX state. Therefore, when the second carrier is in the Non-DRX state, the receiver of the mobile station UE is always in the state shown in FIG. 2, and the mobile station UE and the radio base station eNB Communication of the first carrier and the second carrier can be performed without considering the use gap interval. As a result, the mobile station UE and the radio base station eNB, when both the first carrier and the second carrier are in the Non-DRX state, the first carrier and the second carrier without a gap section for measurement Communication is possible, and loss of throughput can be avoided.
- the mobile station UE includes a first communication unit 102, a second communication unit 104, a DRX control unit 106, and a gap control unit 108.
- the first communication unit 102 includes a first downlink reception unit 102A, a first uplink transmission unit 102B, and a first measurement unit 102C
- the second communication unit 104 includes a second downlink reception unit 104A.
- a second uplink transmission unit 104B and a second measurement unit 104C are provided.
- the function part regarding the baseband process in the mobile station UE is illustrated, and the function part regarding the process (RF part) in the mobile station UE is not illustrated. That is, the receivers shown in FIGS. 2 and 3 are not illustrated because they are included in the functional unit related to RF processing.
- the configuration of the mobile station UE shown in the present embodiment may be applied regardless of the functional unit related to the RF processing.
- First communication unit 102, first downlink reception unit 102A, first uplink transmission unit 102B, first measurement unit 102C, second communication unit 104, second downlink reception unit 104A, second The uplink transmission unit 104B, the second measurement unit 104C, the DRX control unit 106, and the gap control unit 108 are connected to each other.
- the first communication unit 102 performs communication related to the first carrier. For example, the first communication unit 102 performs downlink reception and uplink transmission on the first carrier, cell search and measurement related to the first carrier, radio link monitoring, and the like.
- the first communication unit 102 relates to the first carrier in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap section. You may be comprised so that communication may not be performed.
- the first downlink receiving unit 102A receives a downlink signal in the first carrier.
- the downlink signal may be, for example, PDSCH or PDCCH.
- the downlink signal may be P-BCH as broadcast information, PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal) as a synchronization signal, or a downlink reference signal.
- the first downlink receiving unit 102A has the first interval in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap interval. You may be comprised so that the signal of the downlink in a carrier may not be received.
- the first uplink transmission unit 102B transmits an uplink signal in the first carrier.
- the uplink signal may be, for example, PUSCH or PUCCH.
- the uplink signal may be a sounding reference signal, a demodulation reference signal, or a random access channel.
- the first uplink transmission unit 102B performs the first uplink transmission in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap interval. It may be configured not to transmit uplink signals in the carrier.
- the first measurement unit 102C performs measurement processing such as cell search and measurement in the first carrier, and radio link monitoring.
- the first measurement unit 102C performs the cell search described above in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap section.
- measurement processing such as measurement and radio link monitoring may not be performed.
- the second communication unit 104 performs communication related to the second carrier. For example, the second communication unit 104 performs downlink reception and uplink transmission on the second carrier, cell search and measurement on the second carrier, radio link monitoring, and the like.
- the second communication unit 104 relates to the second carrier in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap section. You may be comprised so that communication may not be performed.
- the second downlink reception unit 104A receives a downlink signal in the second carrier.
- the downlink signal may be, for example, PDSCH or PDCCH.
- the downlink signal may be P-BCH as broadcast information, PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal) as a synchronization signal, or a downlink reference signal.
- the second downlink reception unit 104A performs the second interval in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, the on-duration gap interval. You may be comprised so that the signal of the downlink in a carrier may not be received.
- the second uplink transmission unit 104B transmits an uplink signal in the second carrier.
- the uplink signal may be, for example, PUSCH or PUCCH.
- the uplink signal may be a sounding reference signal, a demodulation reference signal, or a random access channel.
- the second uplink transmission unit 104B performs the second uplink transmission in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap interval. It may be configured not to transmit uplink signals in the carrier.
- the second measurement unit 104C performs measurement processing such as cell search and measurement in the second carrier, and monitoring of the radio link.
- the second measurement unit 104C performs a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, the on-duration gap section of the on-duration gap.
- measurement processing such as cell search and measurement in the second carrier, and monitoring of a radio link may be performed.
- the measurement may include measurement of Pathloss described later.
- the second measurement unit 104C has a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, the on-duration gap section of the on-duration gap.
- the meaning of performing measurement processing such as cell search and measurement in the second carrier and monitoring of the radio link in the previously set interval will be described.
- transmission power for uplink transmission is determined based on the latest Path loss as much as possible.
- the processing result of the measured path loss is reflected in the determination of the transmission power for the uplink transmission in consideration of processing delay and the like. It is difficult.
- the transmission power for uplink transmission is determined based on the latest Path loss by measuring the Path loss in the section set before On-duration. It is possible to improve the quality.
- the measurement of the Path loss in the section set before the on-duration is the RSRP measurement (so-called measurement). ) In a section set before on-duration.
- RSRP measurement so-called measurement
- cell search and radio link monitoring can be performed based on the measurement results in subsequent on-duration. It is preferable to be performed in the section set to.
- the section set after On-Duration only the processing such as switching of the center frequency of the receiver described above occurs, whereas in the section set before On-Duration, the above-mentioned process is performed.
- the processing such as switching the center frequency of the receiver the above-described cell search, measurement, and radio link monitoring processing in the second carrier is performed, so the section set before the on-duration
- the size may be set larger than the size of the section set after the on-duration.
- the mobile station UE and the radio base station eNB perform the first on-duration gap section set before the on-duration in the intermittent reception control for the second carrier and the intermittent reception control for the second carrier.
- the second On-duration Gap section set after the On-duration in it may be assumed that data cannot be transmitted / received in the first carrier, and the communication processing in the first carrier may be performed.
- the size of the first on-duration gap interval may be set larger than the size of the second on-duration gap interval.
- the first on-duration gap section and the second on-duration gap section may be regarded as sections equivalent to the measurement gap, and communication control for the first carrier may be performed.
- the first on-duration gap section and the second on-duration gap section may be regarded as sections equivalent to the measurement gap, and communication regarding the first carrier may be stopped.
- the DRX control unit 106 is configured to manage whether or not the mobile station UE is in an intermittent reception state. More specifically, the DRX control unit 106 is configured to manage whether or not each of the first carrier and the second carrier is in an intermittent reception state. Then, the DRX control unit 106 includes a first communication unit 102 (a first downlink reception unit 102A, a first uplink transmission unit 102B, a first measurement unit 102C) and a second communication unit 104 (a second downlink reception unit 104A). , The second uplink transmission unit 104B, the second measurement unit 104C) and the gap control unit 108, whether each of the first carrier and the second carrier is in the intermittent reception state, that is, in the intermittent reception state. It is notified whether there is a non-discontinuous reception state and when the on-duration is in progress.
- the gap control unit 108 controls the measurement gap. More specifically, the measurement gap management for the measurement related to the carrier of the different frequency and the measurement related to the carrier of the different mobile communication system is performed, and the information indicating in which subframe the measurement gap is set is indicated in the DRX control unit.
- the gap control unit 108 manages and controls the above-described receiver switching section, that is, the on-duration gap section. That is, the gap control unit 108 sets a section set before and after the on-duration in the intermittent reception control for the second carrier, that is, sets an on-duration gap section, and sets the on-duration gap section as a DRX.
- Control unit 106 and first communication unit 102 first downlink reception unit 102A, first uplink transmission unit 102B, first measurement unit 102C
- second communication unit 104 second downlink reception unit 104A, second uplink
- the radio base station eNB includes a first communication unit 202, a second communication unit 204, a DRX control unit 206, and a gap control unit 208.
- the first communication unit 202 includes a first downlink transmission unit 202A and a first uplink reception unit 202B
- the second communication unit 204 includes a second downlink transmission unit 204A and a second uplink reception unit. 204B. Gap between first communication unit 202, first downlink transmission unit 202A, first uplink reception unit 202B, second communication unit 204, second downlink transmission unit 204A, second uplink reception unit 204B, DRX control unit 206
- the control unit 208 is connected to each other.
- the first communication unit 202 performs communication related to the first carrier. For example, the first communication unit 202 performs downlink transmission, uplink reception, and the like on the first carrier.
- the first communication unit 202 performs communication related to the first carrier in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap. It may be configured not to perform.
- the first downlink transmission unit 202A transmits a downlink signal in the first carrier.
- the downlink signal may be, for example, PDSCH or PDCCH.
- the downlink signal may be P-BCH as broadcast information, PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal) as a synchronization signal, or a downlink reference signal.
- the first downlink transmission section 202A has the first carrier in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap. It may be configured not to transmit a downlink signal.
- the first downlink transmission unit 202A may perform scheduling so that the mobile station UE does not receive a downlink signal in the on-duration gap.
- scheduling refers to a process of selecting which mobile station UE performs communication using a shared channel in a certain subframe.
- the first uplink receiver 202B receives an uplink signal in the first carrier.
- the uplink signal may be, for example, PUSCH or PUCCH.
- the uplink signal may be a sounding reference signal, a demodulation reference signal, or a random access channel.
- the first uplink receiving section 202B has the first carrier in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap. It may be configured not to receive uplink signals in.
- the first uplink reception unit 202B may perform scheduling so that the mobile station UE does not transmit an uplink signal in the on-duration gap.
- scheduling refers to a process of selecting which mobile station UE performs communication using a shared channel in a certain subframe. More specifically, the first uplink receiving unit 202B performs the mobile station UE in the downlink of the corresponding subframe so that the mobile station UE does not transmit an uplink signal in the on-duration gap. It may be configured not to transmit an uplink scheduling grant to the UE.
- the uplink scheduling grant may be transmitted via the first downlink transmission unit 202A.
- the second communication unit 204 performs communication related to the second carrier. For example, the second communication unit 204 performs downlink transmission, uplink reception, and the like on the second carrier.
- the second communication unit 204 relates to the second carrier in a predetermined section set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap section. You may be comprised so that communication may not be performed.
- the second downlink transmission unit 204A transmits a downlink signal in the second carrier.
- the downlink signal may be, for example, PDSCH or PDCCH.
- the downlink signal may be P-BCH as broadcast information, PSS (Primary Synchronization Signal), SSS (Secondary Synchronization Signal) as a synchronization signal, or a downlink reference signal.
- the second downlink transmission unit 204A performs the second interval in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, the on-duration gap interval. You may be comprised so that the signal of the downlink in a carrier may not be transmitted.
- the second downlink transmission unit 204A may perform scheduling so that the mobile station UE does not receive a downlink signal in the on-duration gap.
- scheduling refers to a process of selecting which mobile station UE performs communication using a shared channel in a certain subframe.
- the second uplink reception unit 204B receives an uplink signal on the second carrier.
- the uplink signal may be, for example, PUSCH or PUCCH.
- the uplink signal may be a sounding reference signal, a demodulation reference signal, or a random access channel.
- the second uplink reception unit 204B performs the second uplink reception in the predetermined interval set before and after the on-duration in the intermittent reception control for the second carrier, that is, in the on-duration gap interval. You may be comprised so that the signal of the uplink in a carrier may not be received.
- the second uplink reception unit 204B may perform scheduling so that the mobile station UE does not transmit an uplink signal in the on-duration gap.
- scheduling refers to a process of selecting which mobile station UE performs communication using a shared channel in a certain subframe.
- the second uplink receiving section 204B is configured to transmit the mobile station UE in the downlink of the corresponding subframe so that the mobile station UE does not transmit an uplink signal in the on-duration gap. It may be configured not to transmit an uplink scheduling grant to the UE.
- the uplink scheduling grant may be transmitted via the second downlink transmission unit 204A.
- the DRX control unit 206 is configured to manage and control whether or not each mobile station UE in the cell is in an intermittent reception state. More specifically, the DRX control unit 206 is configured to manage and control whether or not each mobile station in the cell is in an intermittent reception state for each of the first carrier and the second carrier. Then, the DRX control unit 206 includes a first communication unit 202 (first downlink transmission unit 202A, first uplink reception unit 202B) and a second communication unit 204 (second downlink transmission unit 204A, second uplink reception). Unit 204B) and gap control unit 208, whether each mobile station in the cell and each of the first carrier and the second carrier are in an intermittent reception state, that is, in an intermittent reception state. Alternatively, it is notified of the non-discontinuous reception state and when the on-duration is performed.
- the gap control unit 208 controls the measurement gap. More specifically, the measurement gap is managed for measurements on carriers of different frequencies and measurements on carriers of different mobile communication systems, and the measurement gap is set in which subframe for each mobile station in the cell.
- the gap control unit 208 performs management and control of the above-described receiver switching section, that is, the on-duration gap section. That is, the gap control unit 108 sets a section set before and after the on-duration in the intermittent reception control for the second carrier, that is, sets an on-duration gap section, and sets the on-duration gap section as a DRX.
- step S302 the mobile station UE determines whether or not the sub-frame is a gap section before or after the on-duration of the Secondary Component Carrier (Secondary CC), that is, an On-duration gap section.
- the Secondary CC corresponds to the second carrier in the above description.
- the mobile station UE transmits an uplink in the primary component carrier (primary CC) in the sub-frame. And downlink reception is not performed (step S304).
- the Primary CC corresponds to the first carrier in the above description.
- the mobile station UE When the sub-frame is not a gap section before and after the on-duration of the secondary CC (step S302: NO), the mobile station UE performs uplink transmission or downlink in the primary CC as usual in the sub-frame. Is received (step S306).
- step S402 the mobile station UE determines whether or not the sub-frame is a gap interval before the on-duration of the Secondary CC.
- the mobile station UE calculates the path loss in the secondary CC in the sub-frame (step S404). ).
- the mobile station UE calculates Path loss based on normal control operation (note that Since this operation is a normal control operation, it is not described in the flowchart). In the operation illustrated in FIG. 10, Path loss is calculated in step S404. Instead, cell search, measurement, RSRP measurement, radio link monitoring, and the like may be performed.
- the radio base station eNB determines whether or not the sub-frame is a gap interval before and after the on-duration of the Secondary Component Carrier (Secondary CC) for the mobile station UE, that is, an On-duration gap interval. Determine whether.
- the Secondary CC corresponds to the second carrier in the above description.
- the radio base station eNB transmits the sub-frame to the mobile station UE in the sub-frame.
- the Primary Component Carrier corresponds to the first carrier in the above description.
- the radio base station eNB in the sub-frame, as a normal to the mobile station UE in the normal manner.
- uplink reception and downlink transmission are performed (step S506).
- the radio base station eNB determines whether or not the sub-frame is a gap section before and after the on-duration of the Secondary Component Carrier (Secondary CC) with respect to the mobile station UE, that is, an On-duration gap section. Determine whether.
- the Secondary CC corresponds to the second carrier in the above description.
- the radio base station eNB When the Sub-frame is a gap interval before and after the On-duration of the Secondary CC (step S602: YES), the radio base station eNB generates downlink transmission or uplink reception in the Primary CC related to the UE Do not schedule. (Step S604).
- the Primary CC corresponds to the first carrier in the above description.
- step S606 When the sub-frame is not a gap section before and after the on-duration of the secondary CC (step S602: NO), the radio base station eNB, in the sub-frame, Then, downlink scheduling is performed (step S606).
- the carrier in the DRX state is only the second carrier, but a plurality of carriers in the DRX state may exist instead.
- the first carrier may be in a non-DRX state
- the second carrier and the third carrier may be in a DRX state.
- the on-duration of the second carrier and the third carrier may be common. That is, when there are a plurality of component carriers in the DRX state, the on-duration of each component carrier may be common.
- the measurement before and after the DRX ON section is performed when the second carrier as the secondary component carrier is in the DRX state.
- the operation is considered to be a gap
- the measurement for measuring the second carrier is performed when the second carrier which is the secondary component carrier is in the De-activated state, that is, the state where it is not activated.
- An operation may be performed in which a section is defined and before and after the measurement section is regarded as a measurement gap. In this case, instead of before and after the measurement interval, the first and last intervals in the measurement interval may be regarded as the measurement gap.
- the measurement interval for measuring the second carrier is applied only when the second carrier is in the De-activated state, and the second carrier is in the Activated state, similarly to the ON interval (On-duration) in DRX control. If it is, it may not be applied.
- the mobile station, the radio base station, and the communication control method according to the present embodiment are not limited to the case where the secondary component carrier is in the DRX state, and are applied when the secondary component carrier is in the De-activated state. May be.
- the mobile station, the radio base station, and the communication control method according to the present embodiment are not limited to the case where the secondary component carrier is in the DRX state / non-DRX state, and the secondary component carrier always communicates. It may be applied to a state where communication is performed / a state where communication is performed intermittently.
- intermittent communication may be, for example, a state in which control signal monitoring, cell search, and measurement are intermittently performed and normal data communication is not performed.
- the radio base station eNB and the mobile station UE can make the first carrier It is possible to explicitly stop the uplink and downlink communications of the mobile station UE, and it is possible to avoid the event that the mobile station UE loses packets in a state where the radio base station eNB cannot manage.
- the second carrier transitions from the DRX state to the Non-DRX state, the on-duration does not exist and therefore the accompanying gap section does not exist.
- the first carrier and the second carrier are in the Non-DRX state, it is possible to reduce the throughput loss due to the gap section.
- the mobile station UE can measure Path loss and the like before the on-duration, and the uplink in the on-duration It is possible to improve the accuracy of the transmission power of the transmission.
- the SCC (Secondary) composed of the four sections shown in FIG. 13 is used instead of the on-duration and the sections before and after the on-duration shown in FIGS.
- the measurement section for (Component Carrier) is applied.
- the four sections may be referred to as a first section, a second section, a third section, and a fourth section from the beginning in time. Note that the SCC measurement section is also applied only when the second carrier is in the DRX state, similar to the on-duration shown in FIGS. 5 to 6 and the section before and after the on-duration.
- the sizes of the first section, the second section, the third section, and the fourth section may be 2 ms, 4 ms, 5 ms, and 2 ms, respectively.
- the sizes of the first section, the second section, the third section, and the fourth section may be values other than those described above.
- the first and fourth sections of the SCC measurement section are equivalent to the sections before and after the above-described on-duration. That is, the first interval and the fourth interval are regarded as the time when the receiver of the mobile station UE switches the center frequency and the like, and the first carrier communication is not performed. That is, the first section and the fourth section are regarded as measurement gaps, and the first carrier communication is not performed. That is, the radio base station eNB and the mobile station UE do not perform communication of the first carrier in the first section and the fourth section. In the first interval and the fourth interval, the second carrier is not communicated for the same reason.
- the second and third sections of the SCC measurement section are equivalent to the above-described on-duration for the first carrier.
- the second section and the third section are in the state of FIG. 2 as the receiver of the mobile station UE, and the first carrier communication is performed. That is, the radio base station eNB and the mobile station UE perform communication of the first carrier in the second section and the third section. That is, the second section and the third section are not a measurement gap for the first carrier, but are regarded as a normal section, and communication of the first carrier is performed.
- the second and third sections of the SCC measurement section are equivalent to the above-described on-duration for the second carrier.
- the mobile station UE performs measurement on the second carrier, for example, cell search, measurement, measurement of path loss with the serving cell, etc. at low frequency and starts communication. It is desirable to measure the second carrier again before improving the accuracy and improve the communication quality. Therefore, in the second section of the SCC measurement section, the second carrier is measured in the mobile station UE, and the second carrier is not communicated between the mobile station UE and the radio base station eNB. That is, the radio base station eNB and the mobile station UE do not communicate with the second carrier in the second section.
- communication of the second carrier is performed in the third section of the SCC measurement section. That is, the radio base station eNB and the mobile station UE perform communication of the second carrier in the third section.
- the mobile station UE may measure the second carrier even in the third section of the SCC measurement section.
- the mobile station UE performs cell search, measurement, and path loss measurement on the second carrier in the second section of the SCC measurement section, and performs uplink transmission and downlink reception on the second carrier. Not performed. Then, the mobile station UE performs uplink transmission and downlink reception on the second carrier in the third section of the SCC measurement section. In addition, the radio base station eNB does not perform uplink reception or downlink transmission on the second carrier in the second section of the SCC measurement section, and does not perform transmission of the second carrier in the third section of the SCC measurement section. Uplink reception and downlink transmission are performed.
- the downlink communication may be performed in both the second section and the third section because the above-described path loss measurement and the like are unnecessary. In this case, only uplink communication is not performed in the second interval. That is, the mobile station UE performs cell search and measurement of the second carrier, path loss measurement and downlink reception in the second section of the SCC measurement section, and performs uplink transmission in the second carrier. Absent. The mobile station UE performs both uplink transmission and downlink reception on the second carrier in the third section of the SCC measurement section. Also, the radio base station eNB performs downlink transmission on the second carrier in the second section of the SCC measurement section, and does not receive uplink, and in the third section of the SCC measurement section. In the second carrier, both uplink reception and downlink transmission are performed.
- the on-duration is further divided into two, and the first section of the two divided is used to measure the second carrier and is divided into two.
- the second section is used for communication of the second carrier.
- communication of the first carrier may be performed in both the first section and the second section divided into the two.
- the second carrier communication may be transmission of an uplink data signal triggered by an uplink scheduling grant, or transmission of a downlink data signal notified by downlink scheduling information.
- Good That is, whether or not the uplink scheduling grant and downlink scheduling information can be transmitted and the first, second, third, and fourth sections of the SCC measurement section are defined, and the above-described SCC Whether to allow communication in the measurement section may be set.
- a mobile station that communicates with a radio base station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The mobile station, wherein the first communication unit is configured to regard a section before and after an ON section of a carrier in the intermittent reception state as a measurement gap.
- the first communication unit is In a carrier that is not in the intermittent reception state, a first downlink receiving unit that performs downlink reception; In a carrier that is not in the intermittent reception state, a first uplink transmission unit that performs uplink transmission; A first measurement unit that performs measurement in a carrier that is not in the intermittent reception state; The carrier that is not in the intermittent reception state is configured to include a first monitoring unit that performs radio link monitoring,
- the second communication unit is A second downlink receiving unit that performs downlink reception in the carrier in the intermittent reception state; A second uplink transmitter that performs uplink transmission in the carrier in the intermittent reception state; A second measurement unit that performs measurement in the carrier in the intermittent reception state;
- the carrier that is not in the intermittent reception state is The parameter related to intermittent reception control is not set, or A parameter related to intermittent reception control is set and a timer for intermittent reception control is operating, or A parameter related to intermittent reception control is set and a scheduling request is pending, or A state in which parameters related to discontinuous reception control are set and the HARQ retransmission timing of the uplink, or A parameter related to intermittent reception control is set, and after receiving a random access response for the specified preamble, a downlink control signal for new transmission addressed to the own station has not been received, A carrier in at least one of the states of The mobile station according to item 1, wherein the carrier in the intermittent reception state is a carrier in a state other than the above.
- the measurement gap is Item 2.
- the first communication unit is Item 2.
- the first uplink transmission unit includes: Item 3. The mobile station according to Item 2, wherein uplink transmission is not performed in a carrier that is not in the discontinuous reception state before and after the ON interval.
- a communication control method in a mobile station that communicates with a radio base station using two or more carriers When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first step of communicating with a carrier that is not in the intermittent reception state; A second step of communicating with the carrier in the intermittent reception state, In the first step, the communication control method is configured so that a section before and after an ON section of a carrier in the intermittent reception state is regarded as a measurement gap.
- a radio base station that communicates with a mobile station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The radio base station, wherein the first communication unit is configured to regard a section before and after an on section of a carrier in the intermittent reception state as a measurement gap.
- the first communication unit is A first downlink transmission unit that performs downlink transmission in a carrier that is not in the intermittent reception state; A carrier that is not in the intermittent reception state, and configured to include a first uplink receiving unit that performs uplink reception;
- the second communication unit is A second downlink transmitter that performs downlink transmission in the carrier in the intermittent reception state; Item 10.
- the radio base station according to Item 9, wherein the carrier in the intermittent reception state is configured to include a second uplink reception unit that performs uplink reception.
- the first communication unit is Item 10.
- the first downlink transmission unit is Item 10.
- a communication control method in a radio base station that communicates with a mobile station using two or more carriers When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first step of communicating with a carrier that is not in the intermittent reception state; A second step of communicating with the carrier in the intermittent reception state, The communication control method according to claim 1, wherein in the first step, a section before and after an on section of the carrier in the intermittent reception state is regarded as a measurement gap.
- a mobile station that communicates with a radio base station using two or more carriers, When the two or more carriers are constituted by a carrier that is not in an intermittent reception state and a carrier that is in an intermittent reception state, A first communication unit that communicates with a carrier that is not in the intermittent reception state; A second communication unit for communicating with the carrier in the intermittent reception state, The second communication unit regards a section before and after the on-section of the carrier in the intermittent reception state as a measurement gap, and in the intermittent reception state in a section before the on-section of the carrier in the intermittent reception state.
- a mobile station configured to perform a measurement related to a certain carrier.
- the operations of the mobile station UE and the radio base station eNB described above may be applied to mobile stations, radio base stations, and control stations other than systems to which LTE-Advanced is applied.
- the present invention may be applied to mobile stations, radio base stations, and control stations in LTE, WCDMA, CDMA2000, and WiMAX.
- 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 a storage medium of an arbitrary format such as a CD-ROM.
- Such a 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 or the radio base station eNB. Further, the storage medium and the processor may be provided as a discrete component in the mobile station UE or the radio base station eNB.
- UE ... mobile station 102 ... first communication unit 102A ... first downlink reception unit 102B ... first uplink transmission unit 102C ... first measurement unit 104A ... second downlink reception unit 104B ... second uplink transmission unit 104C ... 2nd measurement unit 106 ... DRX control unit 108 ... gap control unit eNB ... radio base station 202A ... first downlink transmission unit 202B ... first uplink reception unit 204A ... second downlink transmission unit 204B ... second uplink reception Unit 206 ... DRX control unit 208 ... Gap control unit
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Abstract
Description
2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする。
2つ以上のキャリアを用いて無線基地局と通信を行う移動局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする。
2つ以上のキャリアを用いて移動局と通信を行う無線基地局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする。
2つ以上のキャリアを用いて移動局と通信を行う無線基地局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすことを特徴とする。
2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第2通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなし、かつ、前記間欠受信状態であるキャリアのオン区間の前の区間において、前記間欠受信状態であるキャリアに関するメジャメントを行うように構成されていることを特徴とする。
以下、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、図面を参照しつつ説明する。本実施形態を説明するための全図において、同一機能を有するものは同一符号を用い、繰り返しの説明は省略する。
本発明に係る移動局UE、無線基地局eNB、通信制御方法の変更例を以下に示す。
2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする移動局。
前記第1通信部は、
前記間欠受信状態ではないキャリアにおいて、下りリンクの受信を行う第1下りリンク受信部と、
前記間欠受信状態ではないキャリアにおいて、上りリンクの送信を行う第1上りリンク送信部と、
前記間欠受信状態ではないキャリアにおいて、メジャメントを行う第1メジャメント部と、
前記間欠受信状態ではないキャリアにおいて、無線リンクのモニタリングを行う第1モニタリング部とを具備するように構成され、
前記第2通信部は、
前記間欠受信状態であるキャリアにおいて、下りリンクの受信を行う第2下りリンク受信部と、
前記間欠受信状態であるキャリアにおいて、上りリンクの送信を行う第2上りリンク送信部と、
前記間欠受信状態であるキャリアにおいて、メジャメントを行う第2メジャメント部と、
前記間欠受信状態であるキャリアにおいて、無線リンクのモニタリングを行う第2モニタリング部とを具備するように構成されていることを特徴とする項目1に記載の移動局。
前記間欠受信状態ではないキャリアとは、
間欠受信制御に関連するパラメータが設定されていない状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、間欠受信制御のためのタイマーが動作している状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、スケジューリングリクエストがペンディングされている状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、上りリンクのHARQの再送タイミングである状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、指定されたプリアンブルに対するランダムアクセスリスポンスの受信の後に、自局宛の新規送信のための下りリンクの制御信号を受信していない状態、
の内の少なくとも1つの状態にあるキャリアであり、
前記間欠受信状態であるキャリアとは、上記以外の状態にあるキャリアであることを特徴とする項目1に記載の移動局。
前記メジャメントギャップとは、
異なる周波数のキャリアや異なる無線通信システムのキャリアを測定するために設けられる時間区間であることを特徴とする項目1に記載の移動局。
前記第1通信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信を行わないことを特徴とする項目1に記載の移動局。
前記第1上りリンク送信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける上りリンクの送信を行わないことを特徴とする項目2に記載の移動局。
前記オン区間の前後の区間に関して、
前記オン区間の前の区間の長さは、前記オン区間の後の長さよりも大きいことを特徴とする項目1に記載の移動局。
2つ以上のキャリアを用いて無線基地局と通信を行う移動局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする通信制御方法。
2つ以上のキャリアを用いて移動局と通信を行う無線基地局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする無線基地局。
前記第1通信部は、
前記間欠受信状態ではないキャリアにおいて、下りリンクの送信を行う第1下りリンク送信部と、
前記間欠受信状態ではないキャリアにおいて、上りリンクの受信を行う第1上りリンク受信部とを具備するように構成され、
前記第2通信部は、
前記間欠受信状態であるキャリアにおいて、下りリンクの送信を行う第2下りリンク送信部と、
前記間欠受信状態であるキャリアにおいて、上りリンクの受信を行う第2上りリンク受信部とを具備するように構成されていることを特徴とする項目9に記載の無線基地局。
前記第1通信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信を行わないことを特徴とする項目9に記載の無線基地局。
前記第1下りリンク送信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信が行われないように、上りリンク及び下りリンクのスケジューリングを行うことを特徴とする項目9に記載の無線基地局。
前記オン区間の前後の区間に関して、
前記オン区間の前の区間の長さは、前記オン区間の後の長さよりも大きいことを特徴とする項目9に記載の無線基地局。
2つ以上のキャリアを用いて移動局と通信を行う無線基地局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすことを特徴とする通信制御方法。
2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第2通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなし、かつ、前記間欠受信状態であるキャリアのオン区間の前の区間において、前記間欠受信状態であるキャリアに関するメジャメントを行うように構成されていることを特徴とする移動局。
102…第1通信部
102A…第1下りリンク受信部
102B…第1上りリンク送信部
102C…第1測定部
104A…第2下りリンク受信部
104B…第2上りリンク送信部
104C…第2測定部
106…DRX制御部
108…ギャップ制御部
eNB…無線基地局
202A…第1下りリンク送信部
202B…第1上りリンク受信部
204A…第2下りリンク送信部
204B…第2上りリンク受信部
206…DRX制御部
208…ギャップ制御部
Claims (15)
- 2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする移動局。 - 前記第1通信部は、
前記間欠受信状態ではないキャリアにおいて、下りリンクの受信を行う第1下りリンク受信部と、
前記間欠受信状態ではないキャリアにおいて、上りリンクの送信を行う第1上りリンク送信部と、
前記間欠受信状態ではないキャリアにおいて、メジャメントを行う第1メジャメント部と、
前記間欠受信状態ではないキャリアにおいて、無線リンクのモニタリングを行う第1モニタリング部とを具備するように構成され、
前記第2通信部は、
前記間欠受信状態であるキャリアにおいて、下りリンクの受信を行う第2下りリンク受信部と、
前記間欠受信状態であるキャリアにおいて、上りリンクの送信を行う第2上りリンク送信部と、
前記間欠受信状態であるキャリアにおいて、メジャメントを行う第2メジャメント部と、
前記間欠受信状態であるキャリアにおいて、無線リンクのモニタリングを行う第2モニタリング部とを具備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。 - 前記間欠受信状態ではないキャリアとは、
間欠受信制御に関連するパラメータが設定されていない状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、間欠受信制御のためのタイマーが動作している状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、スケジューリングリクエストがペンディングされている状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、上りリンクのHARQの再送タイミングである状態、あるいは、
間欠受信制御に関連するパラメータが設定され、かつ、指定されたプリアンブルに対するランダムアクセスリスポンスの受信の後に、自局宛の新規送信のための下りリンクの制御信号を受信していない状態、
の内の少なくとも1つの状態にあるキャリアであり、
前記間欠受信状態であるキャリアとは、上記以外の状態にあるキャリアであることを特徴とする請求項1に記載の移動局。 - 前記メジャメントギャップとは、
異なる周波数のキャリアや異なる無線通信システムのキャリアを測定するために設けられる時間区間であることを特徴とする請求項1に記載の移動局。 - 前記第1通信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信を行わないことを特徴とする請求項1に記載の移動局。 - 前記第1上りリンク送信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける上りリンクの送信を行わないことを特徴とする請求項2に記載の移動局。 - 前記オン区間の前後の区間に関して、
前記オン区間の前の区間の長さは、前記オン区間の後の長さよりも大きいことを特徴とする請求項1に記載の移動局。 - 2つ以上のキャリアを用いて無線基地局と通信を行う移動局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする通信制御方法。 - 2つ以上のキャリアを用いて移動局と通信を行う無線基地局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第1通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすように構成されていることを特徴とする無線基地局。 - 前記第1通信部は、
前記間欠受信状態ではないキャリアにおいて、下りリンクの送信を行う第1下りリンク送信部と、
前記間欠受信状態ではないキャリアにおいて、上りリンクの受信を行う第1上りリンク受信部とを具備するように構成され、
前記第2通信部は、
前記間欠受信状態であるキャリアにおいて、下りリンクの送信を行う第2下りリンク送信部と、
前記間欠受信状態であるキャリアにおいて、上りリンクの受信を行う第2上りリンク受信部とを具備するように構成されていることを特徴とする請求項9に記載の無線基地局。 - 前記第1通信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信を行わないことを特徴とする請求項9に記載の無線基地局。 - 前記第1下りリンク送信部は、
前記オン区間の前後の区間において、前記間欠受信状態ではないキャリアにおける通信が行われないように、上りリンク及び下りリンクのスケジューリングを行うことを特徴とする請求項9に記載の無線基地局。 - 前記オン区間の前後の区間に関して、
前記オン区間の前の区間の長さは、前記オン区間の後の長さよりも大きいことを特徴とする請求項9に記載の無線基地局。 - 2つ以上のキャリアを用いて移動局と通信を行う無線基地局における通信制御方法であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1ステップと、
前記間欠受信状態であるキャリアと通信を行う第2ステップとを備え、
前記第1ステップにおいて、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなすことを特徴とする通信制御方法。 - 2つ以上のキャリアを用いて無線基地局と通信を行う移動局であって、
前記2つ以上のキャリアは、間欠受信状態ではないキャリアと間欠受信状態であるキャリアとにより構成される場合に、
前記間欠受信状態ではないキャリアと通信を行う第1通信部と、
前記間欠受信状態であるキャリアと通信を行う第2通信部とを具備し、
前記第2通信部は、前記間欠受信状態であるキャリアのオン区間の前後の区間をメジャメントギャップとみなし、かつ、前記間欠受信状態であるキャリアのオン区間の前の区間において、前記間欠受信状態であるキャリアに関するメジャメントを行うように構成されていることを特徴とする移動局。
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| AU2011256549A AU2011256549A1 (en) | 2010-05-17 | 2011-05-12 | Mobile station, radio base station, and communication control method |
| CN2011800351746A CN103004254A (zh) | 2010-05-17 | 2011-05-12 | 移动台、无线基站以及通信控制方法 |
| CA2798857A CA2798857A1 (en) | 2010-05-17 | 2011-05-12 | Mobile station, radio base station, and communication control method |
| NZ603578A NZ603578A (en) | 2010-05-17 | 2011-05-12 | Mobile station, radio base station, and communication control method |
| MX2012013310A MX2012013310A (es) | 2010-05-17 | 2011-05-12 | Estacion movil, estacion base de radio, y metodo de control de comunicacion. |
| EP11783445.7A EP2574094B1 (en) | 2010-05-17 | 2011-05-12 | Mobile station, and communication control method |
| KR1020127031068A KR20130022407A (ko) | 2010-05-17 | 2011-05-12 | 이동국, 무선기지국 및 통신제어방법 |
| US13/698,312 US20130107742A1 (en) | 2010-05-17 | 2011-05-12 | Mobile station, radio base station, and communication control method |
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| US14/701,876 Continuation US9414316B2 (en) | 2010-05-17 | 2015-05-01 | Mobile station, radio base station, and communication control method |
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| Country | Link |
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| US (2) | US20130107742A1 (ja) |
| EP (1) | EP2574094B1 (ja) |
| JP (1) | JP5300785B2 (ja) |
| KR (1) | KR20130022407A (ja) |
| CN (2) | CN105187182B (ja) |
| AU (1) | AU2011256549A1 (ja) |
| CA (1) | CA2798857A1 (ja) |
| MX (1) | MX2012013310A (ja) |
| NZ (1) | NZ603578A (ja) |
| TR (1) | TR201815160T4 (ja) |
| WO (1) | WO2011145511A1 (ja) |
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| JP5661865B2 (ja) * | 2010-05-17 | 2015-01-28 | 株式会社Nttドコモ | 移動局 |
| JP5281699B2 (ja) * | 2012-01-24 | 2013-09-04 | 株式会社エヌ・ティ・ティ・ドコモ | 無線基地局 |
| US20130250908A1 (en) * | 2012-03-23 | 2013-09-26 | Nokia Siemens Networks Oy | Base station power savings and control thereof |
| KR101622069B1 (ko) | 2012-05-29 | 2016-05-17 | 후지쯔 가부시끼가이샤 | 무선 통신 시스템, 이동국 및 기지국 |
| WO2014184668A2 (en) * | 2013-04-05 | 2014-11-20 | Nokia Corporation | Relaxed performance requirements for offloading measurements |
| US9986473B2 (en) * | 2013-05-07 | 2018-05-29 | Qualcomm Incorporated | User equipment panic state(s) under connected mode discontinuous reception state in long term evolution |
| CN103298123B (zh) * | 2013-05-27 | 2015-11-11 | 大唐移动通信设备有限公司 | 一种载波聚合辅载波激活与去激活方法及装置 |
| HK1216573A1 (zh) | 2013-08-12 | 2016-11-18 | 瑞典爱立信有限公司 | 用於异构网络中的测量的聚簇周期间隙 |
| US10334588B2 (en) | 2013-12-11 | 2019-06-25 | Qualcomm Incorporated | Carrier sense adaptive transmission (CSAT) coordination in unlicensed spectrum |
| JP6356973B2 (ja) | 2014-01-28 | 2018-07-11 | 株式会社Nttドコモ | 移動端末、基地局及び通信制御方法 |
| CN103888987B (zh) | 2014-03-21 | 2017-12-19 | 电信科学技术研究院 | 一种数据传输及其控制方法及装置 |
| JP5869637B1 (ja) * | 2014-08-11 | 2016-02-24 | 株式会社Nttドコモ | ユーザ装置、及び測定制御方法 |
| US9848425B2 (en) * | 2014-10-28 | 2017-12-19 | Intel Corporation | Communication device and method for controlling transceiver chains of a communication device |
| JP2016139990A (ja) * | 2015-01-28 | 2016-08-04 | 富士通株式会社 | 通信システム |
| EP3257321B1 (en) | 2015-03-13 | 2020-01-08 | Huawei Technologies Co., Ltd. | Apparatus and methods in a wireless communication network for discontinuous reception and data reception |
| WO2017027066A1 (en) * | 2015-08-12 | 2017-02-16 | Intel IP Corporation | Method of measurement gap enhancement |
| WO2017038563A1 (ja) * | 2015-08-31 | 2017-03-09 | 株式会社Nttドコモ | ユーザ端末、無線基地局及び無線通信方法 |
| JP6039830B2 (ja) * | 2016-01-07 | 2016-12-07 | 株式会社Nttドコモ | ユーザ装置、及び測定制御方法 |
| JP6253746B2 (ja) * | 2016-11-04 | 2017-12-27 | 株式会社Nttドコモ | ユーザ装置、及び測定制御方法 |
| JP6509410B2 (ja) * | 2018-06-15 | 2019-05-08 | 株式会社Nttドコモ | 移動端末、基地局及び通信制御方法 |
| US11647460B2 (en) * | 2018-12-26 | 2023-05-09 | Mediatek Singapore Pte. Ltd. | Method and apparatus for indicating power saving information in mobile communications |
| GB2628794A (en) * | 2023-04-04 | 2024-10-09 | Nokia Technologies Oy | Method, apparatus and computer program |
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2011
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- 2011-05-12 TR TR2018/15160T patent/TR201815160T4/tr unknown
- 2011-05-12 MX MX2012013310A patent/MX2012013310A/es active IP Right Grant
- 2011-05-12 KR KR1020127031068A patent/KR20130022407A/ko not_active Ceased
- 2011-05-12 CN CN201510490683.8A patent/CN105187182B/zh active Active
- 2011-05-12 CA CA2798857A patent/CA2798857A1/en not_active Abandoned
- 2011-05-12 EP EP11783445.7A patent/EP2574094B1/en active Active
- 2011-05-12 WO PCT/JP2011/060990 patent/WO2011145511A1/ja not_active Ceased
- 2011-05-12 AU AU2011256549A patent/AU2011256549A1/en not_active Abandoned
- 2011-05-12 NZ NZ603578A patent/NZ603578A/en not_active IP Right Cessation
- 2011-05-12 CN CN2011800351746A patent/CN103004254A/zh active Pending
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2015
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| WO2013176822A3 (en) * | 2012-05-25 | 2014-03-06 | Motorola Mobility Llc | Reducing the effects of interference experienced by a communication device |
| CN104285404A (zh) * | 2012-05-25 | 2015-01-14 | 摩托罗拉移动有限责任公司 | 减少通信设备经历的干扰的影响 |
| CN104285404B (zh) * | 2012-05-25 | 2018-06-08 | 谷歌技术控股有限责任公司 | 减少通信设备经历的干扰的影响 |
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Also Published As
| Publication number | Publication date |
|---|---|
| NZ603578A (en) | 2014-03-28 |
| US20150237582A1 (en) | 2015-08-20 |
| AU2011256549A1 (en) | 2012-12-06 |
| CA2798857A1 (en) | 2011-11-24 |
| KR20130022407A (ko) | 2013-03-06 |
| US9414316B2 (en) | 2016-08-09 |
| EP2574094A1 (en) | 2013-03-27 |
| JP5300785B2 (ja) | 2013-09-25 |
| MX2012013310A (es) | 2013-02-01 |
| TR201815160T4 (tr) | 2018-11-21 |
| US20130107742A1 (en) | 2013-05-02 |
| CN105187182B (zh) | 2019-06-14 |
| EP2574094A4 (en) | 2017-01-18 |
| EP2574094B1 (en) | 2018-09-26 |
| CN103004254A (zh) | 2013-03-27 |
| CN105187182A (zh) | 2015-12-23 |
| JP2012004608A (ja) | 2012-01-05 |
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