WO2018123623A1 - 端末装置、基地局装置、通信方法、および、集積回路 - Google Patents
端末装置、基地局装置、通信方法、および、集積回路 Download PDFInfo
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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
- H04L5/0094—Indication of how sub-channels of the path are allocated
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
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- H—ELECTRICITY
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Definitions
- the present invention relates to a terminal device, a base station device, a communication method, and an integrated circuit.
- a wireless access method and a wireless network for cellular mobile communication (hereinafter referred to as “Long Term Evolution (LTE: registered trademark)” or “Evolved Universal Terrestrial Access: EUTRA”) is a third generation partnership project (3rd Generation). Partnership Project: 3GPP).
- LTE-Advanced Pro which is an LTE extension technology
- NR New Radio technology
- eMBB enhanced Mobile BroadBand
- URLLC Ultra-Reliable and Low Latency Communication
- IoT Internet of Things
- mMTC massive machine type communication
- Non-Patent Document 2 it is considered that communication is performed using a plurality of different physical parameters (for example, subcarrier spacing) (Non-Patent Document 2), and the terminal device uses any one of the plurality of different physical parameters. It is necessary to specify whether to communicate with the base station apparatus.
- 3GPP R1-166878 http: // www. 3 gpp. org / ftp / tsg_ran / WG1_RL1 / TSGR1_86 / Docs / R1-166678.
- Non-patent Document 3 it is considered that a base station apparatus and a terminal apparatus communicate using a plurality of physical parameters (numerology) based on terminal capabilities and physical parameters supported by a cell.
- the necessary parameter notification method and application method have not been studied, and there has been a problem that communication between the base station apparatus and the terminal apparatus cannot be performed efficiently.
- An object of the present invention is to provide a communication method, a communication method used for the base station device, an integrated circuit mounted on the terminal device, and an integrated circuit mounted on the base station device.
- a first aspect of the present invention is a terminal device that communicates with a base station device via a cell, a transmission unit that transmits capability information to the base station device, and a radio resource control ( A reception unit that receives a reconfiguration message of RRC) and a control unit that sets parameters based on parameters included in the reconfiguration message of radio resource control, and the capability information is a maximum supported by the terminal device Contains information on the number of MAC entities.
- a second aspect of the present invention is a base station device that communicates with a terminal device via a cell, and includes capability information including information on the maximum number of MAC entities supported by the terminal device from the terminal device.
- a transmission unit that transmits a radio resource control (RRC) reconfiguration message to the terminal device, and a control unit that generates parameters included in the radio resource control reconfiguration message,
- the parameter includes at least setting information regarding one or more subcarrier intervals corresponding to the data radio bearer, and sets setting information regarding the subcarrier interval based on the capability information.
- a third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device via a cell, the step of transmitting capability information to the base station device, and the base station Receiving at least a radio resource control (RRC) reconfiguration message from a device, and setting parameters based on parameters included in the radio resource control reconfiguration message, wherein the capability information is a terminal Contains information on the maximum number of MAC entities supported by the device.
- RRC radio resource control
- a fourth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device via a cell, the function of transmitting capability information to the base station device, and the base station A function of receiving a radio resource control (RRC) reconfiguration message from a device and a function of setting a parameter based on a parameter included in the radio resource control reconfiguration message;
- the capability information includes information on the maximum number of MAC entities supported by the terminal device.
- the terminal device and the base station device can communicate efficiently.
- LTE (and LTE-A Pro) and NR may be defined as different RATs (Radio Access Technology).
- NR may be defined as a technology included in LTE.
- LTE may be defined as a technology included in NR. This embodiment may be applied to NR, LTE and other RATs. In the following description, terms related to LTE will be used for description, but the present invention may be applied to other technologies using other terms.
- FIG. 1 is a conceptual diagram of the wireless communication system of the present embodiment.
- the wireless communication system includes a terminal device 2 and a base station device 3.
- the base station apparatus 3 may comprise one or a plurality of transmission / reception points 4 (transmission reception points: TRP).
- the base station apparatus 3 may serve the terminal apparatus 2 with the communicable range (communication area) controlled by the base station apparatus 3 as one or a plurality of cells.
- the base station apparatus 3 may serve the terminal apparatus 2 by setting the communicable range (communication area) controlled by one or a plurality of transmission / reception points 4 as one or a plurality of cells.
- one cell may be divided into a plurality of partial areas (also referred to as a beamed area or a beamed cell), and the terminal device 2 may be served in each partial area.
- the partial region may be identified based on a beam index, a quasi-collocation index, or a precoding index used in beamforming.
- the communication area covered by the base station device 3 may have a different size and a different shape for each frequency. Moreover, the area to cover may differ for every frequency.
- a wireless network in which cells having different types of base station apparatuses 3 and different cell radii are mixed at the same frequency or different frequencies to form one communication system is referred to as a heterogeneous network.
- a wireless communication link from the base station device 3 to the terminal device 2 is referred to as a downlink.
- a wireless communication link from the terminal device 2 to the base station device 3 is referred to as an uplink.
- a direct wireless communication link from the terminal device 2 to another terminal device 2 is referred to as a side link.
- orthogonal frequency division including a cyclic prefix is performed.
- Multiplexing Orthogonal Division Division Multiplexing
- SC-FDM Single Carrier Frequency Multiplexing
- DFT-S-Frequency OFDM Discrete Fourier Transform Spreading OFDM
- M-CDM Multi-Carrier Code Division Multiplexing
- a universal filter multicarrier (UFMC: Universal-Filtered Multi- A carrier OFDM, a filter OFDM (F-OFDM: Filtered OFDM), a window-multiplied OFDM (Windowed OFDM), and a filter bank multicarrier (FBMC: Filter-Bank Multi-Carrier) may be used.
- UMC Universal-Filtered Multi- A carrier OFDM
- F-OFDM Filtered OFDM
- Windowed OFDM window-multiplied OFDM
- FBMC Filter-Bank Multi-Carrier
- OFDM is described as an OFDM transmission system, but the case of using the above-described other transmission system is also included in one aspect of the present invention.
- CP is not used in the wireless communication between the terminal device 2 and the base station device 3 and / or the wireless communication between the terminal device 2 and another terminal device 2, or zero padding is used instead of the CP.
- the above-described transmission method may be used.
- CP and zero padding may be added to both the front and rear.
- the terminal device 2 operates by regarding the inside of the cell as a communication area.
- the terminal device 2 may move to another appropriate cell by a cell reselection procedure when the terminal device 2 is not wirelessly connected (also referred to as an idle state or an RRC_IDLE state).
- a cell reselection procedure when the terminal device 2 is not wirelessly connected (also referred to as an idle state or an RRC_IDLE state).
- RRC_CONNECTED state When the terminal device 2 is wirelessly connected (connected state, also referred to as RRC_CONNECTED state), it may move to another cell by a handover procedure.
- an appropriate cell is a cell in which access from the terminal device 2 is determined not to be prohibited based on information indicated by the base station device 3, and the downlink reception quality is predetermined. Indicates a cell that satisfies a condition.
- the terminal device 2 may move to another appropriate cell by a cell reselection procedure in an inactive state (also referred to as an inactive state
- a cell set to be used for communication with the terminal device 2 among the cells of the base station device 3 is selected as a serving cell (Serving cell).
- a cell not used for other communication may be referred to as a neighbor cell.
- part or all of the system information required in the serving cell may be notified or notified to the terminal device 2 in another cell.
- one or a plurality of serving cells are set for the terminal device 2.
- the set serving cells may include one primary cell and one or a plurality of secondary cells.
- the primary cell may be a serving cell that has undergone an initial connection establishment procedure, a serving cell that has initiated a connection re-establishment procedure, or a cell that has been designated as a primary cell in a handover procedure.
- One or more secondary cells may be set when an RRC (Radio Resource Control) connection is established or after an RRC connection is established.
- RRC Radio Resource Control
- a cell group (also referred to as a master cell group (MCG)) composed of one or a plurality of serving cells including a primary cell (PCell) does not include a primary cell, and at least a random access procedure can be performed and is inactive Even if one or a plurality of cell groups (also referred to as a secondary cell group (SCG)) including one or a plurality of serving cells including a primary secondary cell (PSCell) that is not in a state are set for the terminal device 2 Good.
- MCG master cell group
- SCG secondary cell group
- TDD Time Division Duplex
- FDD Frequency Division Duplex
- the TDD (Time Division Duplex) method or the FDD (Frequency Division Duplex) method may be applied to all of the plurality of cells.
- cells to which the TDD scheme is applied and cells to which the FDD scheme is applied may be aggregated.
- a carrier corresponding to a serving cell is referred to as a downlink component carrier (or downlink carrier).
- a carrier corresponding to a serving cell is referred to as an uplink component carrier (or uplink carrier).
- a carrier corresponding to the serving cell is referred to as a side link component carrier (or side link carrier).
- a downlink component carrier, an uplink component carrier, and / or a side link component carrier are collectively referred to as a component carrier (or carrier).
- the following physical channels are used in wireless communication between the terminal device 2 and the base station device 3.
- the physical channel is used to transmit information output from an upper layer.
- PBCH Physical Broadcast Channel
- PCCH Physical Control Channel
- PSCH Physical Shared Channel
- PRACH Physical Random Access Channel
- the PBCH is used for the base station apparatus 3 to notify an important information block (MIB: Master Information Block, EIB: Essential Information Block) including important information (essential information) required by the terminal apparatus 2.
- MIB Master Information Block
- EIB Essential Information Block
- the important information block includes information on a position in a super frame composed of a plurality of radio frames (for example, information indicating part or all of a frame number (SFN) in the super frame). May be.
- SFN frame number
- information that can identify the region for example, identifier information of transmission beams constituting the region
- the important information may include a part or all of system information (SI: System Information) necessary for connection to the cell and mobility.
- SI System Information
- the system information may be divided into a plurality of blocks (system information blocks) depending on applications.
- a system information message may be composed of one or more system information blocks.
- the important information message may be a part of the system information message.
- a part or all of the important information message may be referred to as minimum system information (Minimum SI).
- Min SI minimum system information
- the PCCH is used to transmit uplink control information (UPCI).
- the uplink control information may include channel state information (CSI: Channel State Information) used to indicate the state of the downlink channel.
- the uplink control information may include a scheduling request (SR) used for requesting a UL-SCH resource.
- the uplink control information may include HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement).
- HARQ-ACK may indicate HARQ-ACK for downlink data (Transport block, Medium Access Control Protocol Data Unit: MAC PDU, Downlink-Shared Channel: DL-SCH).
- the PCCH is used for transmitting downlink control information (DCI) in the case of downlink wireless communication (wireless communication from the base station apparatus 3 to the terminal apparatus 2).
- DCI downlink control information
- one or a plurality of DCIs are defined for transmission of downlink control information. That is, the field for downlink control information is defined as DCI and mapped to information bits.
- DCI including information indicating whether a signal included in the scheduled PSCH is downlink radio communication or uplink radio communication may be defined as DCI.
- DCI including information indicating a downlink transmission period included in the scheduled PSCH may be defined as DCI.
- DCI including information indicating an uplink transmission period included in the scheduled PSCH may be defined as DCI.
- DCI including information indicating the timing of transmitting HARQ-ACK for the scheduled PSCH may be defined as DCI.
- DCI including information indicating the downlink transmission period, gap, and uplink transmission period included in the scheduled PSCH may be defined as DCI.
- DCI used for scheduling of one downlink radio communication PSCH (transmission of one downlink transport block) in one cell may be defined as DCI.
- DCI used for scheduling of one uplink radio communication PSCH (transmission of one uplink transport block) in one cell may be defined as DCI.
- DCI includes information on PSCH scheduling when the PSCH includes an uplink or a downlink.
- the DCI for the downlink is also referred to as a downlink grant or a downlink assignment.
- the DCI for the uplink is also referred to as an uplink grant or an uplink assignment.
- the PSCH is used for transmission of uplink data (UL-SCH: Uplink Shared Channel) or downlink data (DL-SCH: Downlink Shared Channel) from mediated access (MAC: Medium Access Control).
- UL-SCH Uplink Shared Channel
- DL-SCH Downlink Shared Channel
- MAC Medium Access Control
- RAR Random Access Response
- uplink it may be used to transmit HARQ-ACK and / or CSI along with uplink data. Further, it may be used to transmit only CSI or only HARQ-ACK and CSI. That is, it may be used to transmit only UCI.
- the base station device 3 and the terminal device 2 exchange (transmit / receive) signals in an upper layer (high layer).
- the base station device 3 and the terminal device 2 receive and transmit RRC signaling (RRC message: Radio Resource Control message, RRC information: Radio Resource Control) in the radio resource control (RRC: Radio Resource Control) layer. May be.
- RRC signaling RRC message: Radio Resource Control message
- RRC information Radio Resource Control
- the base station device 3 and the terminal device 2 may transmit and receive a MAC control element in a MAC (Medium Access Control) layer.
- the RRC signaling and / or the MAC control element is also referred to as an upper layer signal (higher layer signaling).
- the PSCH may be used to transmit RRC signaling and MAC control elements.
- the RRC signaling transmitted from the base station apparatus 3 may be common signaling for a plurality of terminal apparatuses 2 in the cell.
- the RRC signaling transmitted from the base station apparatus 3 may be signaling dedicated to a certain terminal apparatus 2 (also referred to as dedicated signaling). That is, the information specific to the terminal device 2 (UE Specific) may be transmitted to a certain terminal device 2 using dedicated signaling.
- the PSCH may be used for transmission of UE capability (UE Capability) in the uplink.
- the use of the logical channel DCCH (Dedicated Control Channel) for the transmission of the RRC message uses dedicated (unique) signaling for a certain terminal device 2.
- DCCH Dedicated Control Channel
- the downlink PCCH may be defined as PDCCH (Physical Downlink Control Channel)
- the uplink PCCH may be defined as PUCCH (Physical Uplink Control Channel).
- the downlink PSCH may be defined as PDSCH (Physical Downlink Shared Channel)
- the uplink PSCH may be defined as PUSCH (Physical Uplink Shared Channel).
- the PRACH may be used to transmit a random access preamble (random access message 1).
- PRACH indicates initial connection establishment (initial connection establishment) procedure, handover procedure, connection re-establishment procedure, synchronization for uplink transmission (timing adjustment), and PUSCH (UL-SCH) resource request May be used.
- C-RNTI Cell-Radio Network Temporary Identifier
- Temporary C-RNTI Temporary C-RNTI
- SPS C-RNTI is exclusively ORed with the CRC parity bits added to the downlink grant or uplink grant. May be.
- C-RNTI and SPS C-RNTI may be used as identifiers for identifying the terminal apparatus 2 in the cell.
- Temporary C-RNTI may be used in contention based random access procedures.
- the C-RNTI may be used to control PSCH (PDSCH and / or PUSCH) in one subframe.
- the SPS C-RNTI may be used to periodically allocate PSCH (PDSCH and / or PUSCH) resources.
- Temporary C-RNTI may be used during random access.
- SI-RNTI System Information RNTI
- SI-RNTI may be used as an identifier for identifying a system information message.
- SI-RNTI may be used to allocate a PDSCH resource for broadcasting (notifying) a system information message.
- One system information message may include one or more system information blocks.
- the following downlink physical signals may be used in downlink wireless communication.
- SS Synchronization signal
- RS Reference signal
- the synchronization signal may be used for the terminal device 2 to synchronize the downlink frequency domain and time domain.
- the synchronization signal may include PSS (Primary Synchronization Signal) and / or SSS (Second Synchronization Signal). Further, the synchronization signal may be used for selection / identification / determination of a base station transmission beam used by the base station device 3 and / or a terminal reception beam used by the terminal device 2 in downlink beamforming. That is, the synchronization signal may be used for the terminal device 2 to select / identify / determine the index of the base station transmission beam applied to the downlink signal by the base station device 3.
- the downlink reference signal (hereinafter also simply referred to as a reference signal) is mainly used by the terminal device 2 to correct the propagation path of the downlink physical channel. That is, the downlink reference signal may include a demodulation reference signal.
- the downlink reference signal may be used for the terminal apparatus 2 to calculate downlink channel state information. That is, the downlink reference signal may include a channel state information reference signal. Further, the downlink reference signal may be used for fine synchronization that allows determination of numerology for radio parameters and subcarrier spacing, FFT window synchronization, and the like.
- the downlink physical channel and the downlink physical signal may be collectively referred to as a downlink signal.
- Uplink physical channels and uplink physical signals may be collectively referred to as uplink signals.
- BCH, UL-SCH and DL-SCH are transport channels.
- a channel used in the medium access control (Medium Access Control: MAC) layer is referred to as a transport channel.
- a transport channel unit used in the MAC layer is also referred to as a transport block (TB) or a MAC PDU (Protocol Data Unit).
- the transport block is a unit of data that the MAC layer delivers to the physical layer. In the physical layer, the transport block is mapped to a code word, and an encoding process is performed for each code word.
- the protocol stack that handles user data of the terminal device 2 and the base station device 3 is a user plane (UP (User-plane, U-Plane)) protocol stack
- the protocol stack that handles control data is a control plane (CP ( Control-plane, C-Plane)) protocol stack.
- UP User-plane, U-Plane
- CP Control-plane, C-Plane
- the physical layer provides a transmission service to an upper layer using a physical channel (Physical Channel).
- the PHY layer is connected to an upper medium access control layer (Medium Access Control layer: MAC layer) by a transport channel. Data moves between the MAC layer, the PHY layer, and the layer (layer) via the transport channel. Data transmission / reception is performed between the PHY layers of the terminal device 2 and the base station device 3 via a physical channel.
- Medium Access Control layer Medium Access Control layer: MAC layer
- the MAC layer maps various logical channels to various transport channels.
- the MAC layer is connected to an upper radio link control layer (Radio Link Control layer: RLC layer) through a logical channel.
- the logical channel is roughly classified according to the type of information to be transmitted, and is divided into a control channel for transmitting control information and a traffic channel for transmitting user information.
- the MAC layer has a function of controlling the PHY layer to perform intermittent transmission / reception (DRX / DTX), a function of executing a random access procedure, a function of notifying information of transmission power, a function of performing HARQ control, and the like.
- the RLC layer divides the data received from the upper layer (Segmentation) and adjusts the data size so that the lower layer can transmit data appropriately.
- the RLC layer also has a function for guaranteeing the QoS (Quality of Service) required by each data. That is, the RLC layer has functions such as data retransmission control.
- the packet data convergence protocol layer (Packet Data Convergence Protocol layer: PDCP layer) has a header compression function that compresses unnecessary control information in order to efficiently transmit IP packets as user data in a wireless section.
- the PDCP layer also has a data encryption function.
- the control plane protocol stack has a radio resource control layer (Radio Resource Control layer: RRC layer).
- RRC layer sets and reconfigures a radio bearer (RB), and controls a logical channel, a transport channel, and a physical channel.
- the RB may be divided into a signaling radio bearer (Signaling Radio Bearer: SRB) and a data radio bearer (Data Radio Bearer: DRB), and the SRB may be used as a route for transmitting an RRC message as control information. Good.
- the DRB may be used as a route for transmitting user data.
- Each RB may be set between the RRC layers of the base station device 3 and the terminal device 2.
- the PHY layer corresponds to the physical layer of the first layer in the hierarchical structure of the generally known Open Systems Interconnection (OSI) model, and the MAC layer, RLC layer, and PDCP layer are OSI.
- the RRC layer corresponds to the data link layer, which is the second layer of the model, and the network layer, which is the third layer of the OSI model.
- the above functional classification of the MAC layer, RLC layer, and PDCP layer is an example, and some or all of the functions may not be implemented. Also, some or all of the functions of each layer may be included in other layers.
- the MAC layer control element and RRC signaling are higher layer signals.
- RRC signaling is an upper layer signal. From the viewpoint of the RRC layer, the MAC layer and the physical layer are lower layers.
- the NAS layer is also referred to as an upper layer (Upper Layer).
- the signaling protocol used between the network and the terminal device 2 is divided into an access layer (Access Stratum: AS) protocol and a non-access layer (Non-Access Stratum: NAS) protocol.
- AS access layer
- the protocol below the RRC layer is an access layer protocol used between the terminal device 2 and the base station device 3.
- Protocols such as connection management (CM) and mobility management (MM) of the terminal device 2 are non-access layer protocols and are used between the terminal device 2 and the core network (CN).
- CM connection management
- MM mobility management
- CN core network
- communication using a non-access layer protocol is transparently performed via the base station device 3 between the terminal device 2 and a mobile management entity (Mobility Management Entity: MME).
- MME Mobile Management Entity
- subframes will be described. Although referred to as a subframe in this embodiment, it may be referred to as a resource unit, a radio frame, a time interval, a time interval, or the like. One or a plurality of subframes may constitute one radio frame.
- FIG. 4 is a diagram illustrating an example of a schematic configuration of a downlink slot according to the embodiment of the present invention.
- Each radio frame is 10 ms long.
- Each radio frame is composed of 10 subframes and X slots. That is, the length of one subframe is 1 ms.
- the uplink slot is defined in the same manner, and the downlink slot and the uplink slot may be defined separately.
- the signal or physical channel transmitted in each of the slots may be represented by a resource grid.
- the resource grid is defined by a plurality of subcarriers and a plurality of OFDM symbols.
- the number of subcarriers constituting one slot depends on the downlink and uplink bandwidths of the cell.
- Each element in the resource grid is referred to as a resource element.
- Resource elements may be identified using subcarrier numbers and OFDM symbol numbers.
- the resource block is used to express a mapping of resource elements of a certain physical downlink channel (PDSCH or the like) or uplink channel (PUSCH or the like).
- resource blocks virtual resource blocks and physical resource blocks are defined.
- a physical uplink channel is first mapped to a virtual resource block. Thereafter, the virtual resource block is mapped to the physical resource block.
- one physical resource block is defined by 7 consecutive OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain. The That is, one physical resource block is composed of (7 ⁇ 12) resource elements.
- one physical resource block is defined by, for example, 6 consecutive OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain. That is, one physical resource block is composed of (6 ⁇ 12) resource elements. At this time, one physical resource block corresponds to one slot in the time domain, and corresponds to 180 kHz (720 kHz in the case of 60 kHz) in the frequency domain when the subcarrier interval is 15 kHz. Physical resource blocks are numbered from 0 in the frequency domain.
- FIG. 5 is a diagram showing the relationship in the time domain of subframes, slots, and minislots.
- the subframe is 1 ms regardless of the subcarrier interval, the number of OFDM symbols included in the slot is 7 or 14, and the slot length varies depending on the subcarrier interval.
- the slot length may be defined as 0.5 / ( ⁇ f / 15) ms when the number of OFDM symbols constituting one slot is 7, where the subcarrier interval is ⁇ f (kHz).
- ⁇ f may be defined by a subcarrier interval (kHz).
- the slot length may be defined as 1 / ( ⁇ f / 15) ms.
- ⁇ f may be defined by a subcarrier interval (kHz).
- the slot length may be defined as X / 14 / ( ⁇ f / 15) ms.
- a mini-slot (may be referred to as a sub-slot) is a time unit configured with fewer OFDM symbols than the number of OFDM symbols included in the slot. This figure shows an example in which a minislot is composed of 2 OFDM symbols. The OFDM symbols in the minislot may coincide with the OFDM symbol timing that constitutes the slot.
- the minimum scheduling unit may be a slot or a minislot.
- FIG. 6 is a diagram illustrating an example of a slot or a subframe (subframe type).
- a case where the slot length is 0.5 ms at a subcarrier interval of 15 kHz is shown as an example.
- D indicates the downlink and U indicates the uplink.
- ⁇ Downlink part (duration)
- One or more of the gap and the uplink part (duration) may be included.
- 6A may be referred to as a certain time interval (for example, a minimum unit of time resources that can be allocated to one UE, or a time unit, etc.
- a plurality of minimum units of time resources are bundled to be referred to as a time unit.
- 6 (b) is an example used for downlink transmission, and FIG. 6 (b) performs uplink scheduling via the PCCH, for example, with the first time resource, and the processing delay and downlink of the PCCH. Uplink signal is transmitted through the uplink switching time and the gap for generating the transmission signal.
- FIG. 6 (c) is used for transmission of the downlink PCCH and / or downlink PSCH in the first time resource, through the processing delay, the downlink to uplink switching time, and the gap for transmission signal generation.
- the uplink signal may be used for transmission of HARQ-ACK and / or CSI, that is, UCI.
- FIG. 6 (d) is used for transmission of the downlink PCCH and / or downlink PSCH in the first time resource, via the processing delay, the downlink to uplink switching time, and the gap for transmission signal generation.
- the uplink signal may be used for transmission of uplink data, that is, UL-SCH.
- FIG. 6E shows an example in which all are used for uplink transmission (uplink PSCH or PCCH).
- the above-described downlink part and uplink part may be composed of a plurality of OFDM symbols as in LTE.
- the resource grid may be defined by a plurality of subcarriers and a plurality of OFDM symbols or SC-FDMA symbols. Further, the number of subcarriers constituting one slot may depend on the cell bandwidth. The number of OFDM symbols constituting one downlink part or uplink part may be 1 or 2 or more.
- each of the elements in the resource grid is referred to as a resource element. Also, the resource element may be identified using a subcarrier number and an OFDM symbol or an SC-FDMA symbol number.
- the base station apparatus 3 may transmit a signal having the subframe configuration in FIG.
- the terminal apparatus 2 in the connected state or inactive state is in communication, and the first base station apparatus 3
- a cell (first cell) or a cell (second cell) of the second base station apparatus 3 as a cell of a secondary cell group for example, a primary secondary cell (PSCell)
- the setting (addition or change) of the numerology of the secondary cell group when the secondary cell group does not include the first cell for example, when the PCell and the PSCell are different cells.
- the setting of numerology may involve resetting or re-establishment (Re-establishment) of the second layer (PDCP layer, RLC layer and / or MAC layer).
- the setting of numerology may be accompanied by execution of random access in PSCell.
- the setting of the secondary cell group may be a synchronous secondary cell group reconfiguration procedure (a procedure with random access) including a second layer reset and / or re-establishment.
- the setting of the secondary cell group may be a synchronous secondary cell group resetting procedure (procedure with random access) including a security refresh if the DRB of the secondary cell group is set. This procedure may be used in various scenarios.
- the scenario includes establishment of a secondary cell group (Establishment), PSCell change, security key refresh, DRB change, and / or numerology change.
- the terminal device 2 may execute an operation related to the setting of the secondary cell group by receiving an RRC connection reconfiguration message including mobility control information (mobilityControlInfoSCG) for the secondary cell group.
- mobilityControlInfoSCG mobility control information
- the network controls the mobility of the terminal device 2. Further, the network may control the mobility of the terminal device 2 in an inactive state.
- the PCell may be changed using an RRC connection reconfiguration message including mobility control information.
- the SCell may be changed using an RRC connection reconfiguration message that includes (or does not include) mobility control information.
- the secondary cell group may be established, reconfigured, or released using an RRC connection reconfiguration message including (or not including) the mobility control information of the secondary cell group. Further, in the reconfiguration of the secondary cell group, when random access to the PSCell is necessary, a secondary cell group change procedure (that is, an RRC connection reconfiguration message including mobilityControlInfoSCG) may be used.
- the first base station apparatus 3 notifies the second base station apparatus 3 of a secondary cell addition request message (SeNB Addition Request) of the terminal apparatus 2 (step S71).
- a secondary cell addition request message SeNB Addition Request
- information on the communication capability of the terminal device 2 network resource allocation information, radio resource allocation information, information on the numerology used by the terminal device 2, and the terminal device 2 wants to use it.
- the information on the numerology being supported and the information on the numerology supported by the first base station apparatus 3 may be included.
- the second base station device 3 that has received the secondary cell addition request message in step S71, when approving the secondary cell addition request, sends a secondary cell addition request approval message (SeNB Addition Request Acknowledge to the first base station device 3). ) Is notified (step S72).
- the secondary cell addition request approval message may include a setting for the terminal device 2 by the second base station device 3.
- the secondary cell addition request approval message may include a part or all of the RRC connection reconfiguration message set for the terminal device 2.
- the RRC connection reconfiguration messages are (8A) rrc-TransactionIdentifier, (8B) measconfig, (8C) mobilityCouldInfo, (8D) dedicatedInfoNassList, (8E) radioRestrictCNS, (8E) (8H) fullConfig, (8I) sCellToReleaseList, (8J) sCellToAddModList, and (8K) systemInformationBlockDedicated may be included.
- rrc-TransactionIdentifier is an element used to identify an RRC procedure (transaction), and has an integer of 0 to 3, for example.
- measConfig is information for setting (Performed) measurement performed by the terminal device 2 and may include setting of a gap period for measurement.
- dedicatedInfoNASList is a list of NAS layer information specific to the terminal device 2 exchanged between the network and the terminal device 2 and includes NAS layer information for each DRB. The RRC layer transparently transmits this information. Are transferred to the upper layer (NAS layer).
- radioResourceConfigDedicated may include information used for setting, changing, and / or releasing an SRB or DRB, information for changing a MAC layer setting, information on a physical layer channel setting, and the like.
- securityConfigHO is a setting relating to security, and may include, for example, setting of an integrity protection algorithm in the AS layer of the SRB, setting of an SRB and / or DRB ciphering algorithm.
- fullConfig is information indicating whether or not a specific option is applied to the RRC connection reconfiguration message, and the terminal device 2 determines that (8H) fullConfig is included in the RRC connection reconfiguration message. You may make it apply the setting contained in a specific element.
- sCellToReleaseList, (8J) sCellToAddModList may include information used for adding, changing, and / or releasing a secondary cell.
- (8K) systemInformationBlockDedicated may include a part of the broadcast information of the target cell.
- mobilityControlInfo includes parameters necessary for mobility (for example, handover) by network control as shown in FIG. (8C) mobilityControlInfo is (9A) targetPhysCellCellId, (9B) carrierFreq, (9C) carrierBandwidth, (9D) t304, (9E) newUE-Identity, (9F) radioCondition May be included. Further, (8C) mobilityControlInfo may include various other information.
- targetPhysCellId indicates the target cell identifier (for example, physical cell identifier).
- carrierFreq indicates frequency information used by the terminal device 2 in the target cell.
- carrierBandwidth indicates information on the downlink and / or uplink bandwidth of the target cell.
- t304 indicates a timer value related to the handover. For example, the terminal device 2 may execute a predetermined process when the handover is not normally completed within the time indicated by the timer.
- newUE-Identity indicates a new identifier (for example, C-RNTI) of the terminal device 2 in the target cell.
- radioResourceConfigCommon includes information used for specifying common radio resource settings such as random access parameters and static physical layer parameters (Specify) as shown in FIG.
- radioResourceConfigCommon is (10A) rach-ConfigCommon, (10B) prach-Config, (10C) pdsch-ConfigCommon, (10D) push-Config-UmmFunCongFRS (10G) UplinkPowerControlCommon, (10H) antennaInfoCommon, (10I) p-Max, (10J) tdd-Config may be included.
- radioResourceConfigCommon may include other various information.
- the settings of (10C) pdsch-ConfigCommon and (10D) push-ConfigCommon may be combined into one setting (psch-ConfigCommon).
- rach-ConfigCommon includes information used to specify a general random access parameter (Generic random access parameter).
- Generic random access parameter For example, (10A) rach-ConfigCommon is threshold information for determining the number of preambles that are not used individually (non-dedicated) and which grouped preambles are used as random access preamble information. And / or some or all of the information regarding power ramping.
- patch-Config includes information used to specify the PRACH settings.
- (10B) patch-Config is a part of the index information of the root sequence of the random access preamble, the information of the time / frequency resource used for transmitting the random access preamble, and / or the information of the numerology used for transmitting the preamble. Or it may include all.
- pdsch-ConfigCommon includes information for specifying a common PDSCH setting.
- pdsch-ConfigCommon is information on the energy per unit resource of the downlink reference signal, information on the power ratio between the downlink reference signal and the PDSCH, and / or the numerology used for receiving the PDCCH and / or PDSCH. Part or all of this information.
- (10D) push-ConfigCommon includes information for specifying common PUSCH settings and / or uplink reference signal settings.
- (10D) push-ConfigCommon may include part or all of band information of PUSCH resources, hopping information, and / or numerology information used for transmission of PUCCH and / or PUSCH.
- puch-ConfigCommon includes information for specifying a common PUCCH setting.
- (10E) pucch-ConfigCommon may include numerology information used for transmission of PUCCH.
- (10F) soundingRS-UL-ConfigCommon includes information for specifying the setting of a common uplink reference signal that can be used for measurement by the base station apparatus 3.
- (10F) soundingRS-UL-ConfigCommon may include numerology information used for transmission of part or all of the uplink reference signal.
- uplinkPowerControlCommon includes information for specifying a common uplink power control setting.
- (10H) antennaInfoCommon includes information for specifying a common antenna setting.
- (10I) p-Max includes information for limiting uplink transmission by the terminal device 2.
- (10J) tdd-Config includes information for specifying a TDD-specific physical channel setting.
- (9G) rach-ConfigDedicated includes information used to specify individual random access parameters assigned to the terminal device 2. For example, it may include a part or all of information that explicitly indicates a format of random access preamble, time / frequency resources, and / or information of numerology used for transmission of the preamble.
- the terminal apparatus 2 transmits in the target cell (1) random access preamble, (2) PUSCH including RRC connection reconfiguration complete message
- the terminal device 2 receives at the target cell (1) a synchronization signal, (2) an important information block, (3) a PDCCH for receiving a PDSCH including a random access response message, and (4) a random access response message.
- Information may also be included.
- SCG-Configuration secondary cell group setting
- the setting of the secondary cell group may include a part or all of (11A) scg-ConfigPartMCG and (11B) scg-ConfigPartSCG.
- the scg-ConfigPartMCG is a setting related to the master cell group when the secondary cell group is set. For example, information related to key information update and / or information related to the power of the master cell group and the secondary cell group May be included.
- scg-ConfigPartSCG is a secondary cell group setting, for example, as shown in FIG. But you can.
- radioResourceConfigDedicated SCG is a radio resource setting specific to the terminal device 2 for the SCG, and may include information for adding / changing a DRB, MAC layer setting information, a timer setting value, and / or constant information.
- pSCellToAddMod is addition / change information of a cell to be a PSCell, index information for identifying the SCell (PSCell), a cell identifier (for example, a physical cell identifier or a cell global identifier), and downlink carrier frequency information , PSCell common radio resource setting and / or PSCell terminal device 2 specific radio resource setting information may be included.
- sCellToAddModListSCG is information on addition / change of a cell to be an SCell of the secondary cell group, and may include a list of one or a plurality of SCell information. Further, each SCell information includes SCell index information for identifying the SCell, a cell identifier (for example, a physical cell identifier or a cell global identifier), downlink carrier frequency information, and / or SCell common radio resource setting information. May be included.
- sCellToReleaseListSCG is information for releasing the SCell of the secondary cell group, and may include a list of one or a plurality of SCell index information.
- mobilityControlInfoSCG is information necessary for changing the secondary cell group, and is used to specify an identifier assigned to the terminal device 2 and an individual random access parameter assigned to the terminal device 2 in the secondary cell group. Information and / or information regarding cryptographic algorithms may be included.
- terminal device 2 transmits the cell (PSCell or all SCells) in the secondary cell group reconfigured.
- Random access preamble (2) PUCCH, (3) PUSCH, (2) Random, (2) Random (2) Random received by cell (PSCell or all SCells) of secondary cell group in which terminal device 2 is reconfigured PDCCH for receiving a PDSCH including an access response message, (3) PDSCH including a random access response message, (4) PDCCH for receiving a PDSCH including a call (paging) message, (5) Call PDSCH including a message of paging), numerology may include information identifying the to some or all of the.
- (12E) mobility control info SCG included in numerology information used for preamble transmission as part of information used for specifying individual random access parameters assigned to terminal device 2 is included.
- (12B) pSCellToAddMod uses the numerology used for transmission / reception of the above-described signals and / or channels of PSCell (or common to cells of the secondary cell group). May be included.
- numerology information for example, (8E) radioResourceConfigDedicated and (12A) configuration information of each MAC layer of radioResourceConfigDedicated SCG
- the numerology used in each cell (or cell group) is included. Can be specified.
- the message is an example, and the RRC connection reconfiguration message may include information other than the RRC connection reconfiguration message, or may not include part of the information of the RRC connection reconfiguration message. Further, the RRC connection reconfiguration message may have a different structure, information element name, or parameter name from the RRC connection reconfiguration message.
- the first base station apparatus 3 that has received the secondary cell addition request approval message notifies the terminal apparatus 2 of the second RRC connection reconfiguration message (RRCConnectionReconfiguration) including the setting for the terminal apparatus 2 by transmitting the second RCC connection reconfiguration message (RRCConnectionReconfiguration).
- the secondary cell group setting with cell addition is instruct
- the terminal device 2 that can receive the RRC connection reconfiguration message and follow the setting including the RRC connection reconfiguration message transmits an RRC connection reconfiguration complete message (RRCConnectionReconfigurationComplete) to the first base station device 3 (step S74). . Further, based on the information of the RRC connection reset message, the following reset process is started (step S76). Also, the first base station apparatus 3 that has received the RRC connection reconfiguration completion message (RRCConnectionReconfigurationComplete) notifies the second base station apparatus 3 of a reconfiguration completion message (SeNB Reconfiguration Complete) (step 75).
- the terminal device 2 includes the mobility control information of the secondary cell group and the mobility control information of the master cell group (not a handover) in the RRC connection reconfiguration message, or RRC.
- the function of the MAC layer of the secondary cell group may be reset based on the setting.
- the terminal device 2 includes the mobility control information of the secondary cell group in the RRC connection reconfiguration message and does not include the mobility control information of the master cell group (not a handover), or is included in the RRC connection reconfiguration message.
- the PDCP layer may be re-established or data recovered when the secondary cell group setting is set to be released.
- the terminal device 2 when the terminal device 2 includes the mobility control information of the secondary cell group in the RRC connection reconfiguration message, or when the setting of the secondary cell group included in the RRC connection reconfiguration message is set to be released, The RLC layer of the master cell group and / or the RLC layer of the secondary cell group may be reestablished. Further, the terminal device 2 includes the mobility control information of the secondary cell group in the RRC connection reconfiguration message and does not include the mobility control information of the master cell group (not a handover), or is included in the RRC connection reconfiguration message. When the setting of the secondary cell group to be set is set to be released, other cells except the PSCell may be inactivated among the SCells of the secondary cell group.
- step S76 when the received secondary cell group setting is set to be released, the terminal device 2 releases the secondary cell group setting except for the DRB setting, and the secondary cell group You may stop the timer.
- the terminal device 2 may reconfigure the specific radio resource settings. Moreover, the terminal device 2 performs addition or change of PSCell, when the addition / change information of the cell used as PSCell is included in the RRC connection reconfiguration message. Moreover, the terminal device 2 may perform addition or change of SCell of a secondary cell group, when the addition / change information of the cell used as SCell of a secondary cell group is contained in a RRC connection reset message. Moreover, when the information for releasing the SCell of the secondary cell group is included in the RRC connection reconfiguration message, the terminal device 2 may execute the release of the SCell of the secondary cell group.
- the terminal device 2 may start downlink synchronization to the target PSCell (second cell).
- the terminal device 2 may detect the synchronization signal based on the information.
- the terminal device 2 may try to detect the synchronization signal using a predetermined numerology. Thereby, the numerology of the synchronization signal detected when there are a plurality of numerologies that may be used for the synchronization signal of the target cell can be uniquely specified.
- the terminal device 2 starts a random access procedure to transmit uplink data, and transmits a random access preamble.
- the second base station apparatus 3 that has received the random access preamble detects a transmission timing shift of the terminal apparatus 2 and transmits a random access response including information (timing advance command) for correcting the shift to the terminal apparatus 2.
- the terminal device 2 may transmit the random access preamble based on the information.
- the terminal device 2 may transmit the random access preamble using a predetermined numerology.
- an appropriate numerology can be set for each terminal device 2.
- the terminal device 2 may receive the random access response based on the information.
- the terminal device 2 may receive the random access response using the same numerology as the predetermined numerology or the synchronized synchronization signal. Good.
- an appropriate numerology can be set for each terminal device 2.
- the setting (addition or change) of numerology when the secondary cell group includes the first cell for example, when the PCell and the PSCell are the same cell.
- the setting of numerology may not involve a reset or re-establishment of a part of the second layer (PDCP layer, RLC layer and / or MAC layer). Also, the setting of numerology does not have to be accompanied by the execution of random access in PSCell. Further, the setting of the secondary cell group may be a secondary cell group reconfiguration procedure (a procedure not involving random access) that does not include a reset and / or re-establishment of a part of the second layer.
- the terminal device 2 may execute an operation related to the setting of the secondary cell group by receiving an RRC connection reconfiguration message including mobility control information (mobilityControlInfoSCG) for the secondary cell group.
- mobilityControlInfoSCG mobility control information
- the network controls the mobility of the terminal device 2. Further, the network may control the mobility of the terminal device 2 in an inactive state.
- the PCell may be changed using an RRC connection reconfiguration message including mobility control information.
- the SCell (including PSCell) may be changed using an RRC connection reconfiguration message that includes (or does not include) mobility control information.
- the secondary cell group may be established, reconfigured, or released using an RRC connection reconfiguration message including (or not including) the mobility control information of the secondary cell group. Further, in the reconfiguration of the secondary cell group, when random access to the PSCell is necessary, a secondary cell group change procedure (that is, an RRC connection reconfiguration message including mobilityControlInfoSCG) may be used.
- the first base station device 3 generates an RRC connection reconfiguration message set for the terminal device 2.
- the generated RRC connection reconfiguration message may have the same configuration as when the secondary cell group does not include the first cell.
- the first base station apparatus 3 notifies the terminal apparatus 2 of an RRC connection reconfiguration message (RRCConnectionReconfiguration) including a setting for the terminal apparatus 2, thereby setting a secondary cell group with the addition of the second cell. Is instructed to the terminal device 2 (step S131).
- RRC connection reconfiguration message RRCConnectionReconfiguration
- the terminal apparatus 2 that can receive the RRC connection reconfiguration message and follow the setting including the RRC connection reconfiguration message transmits an RRC connection reconfiguration complete message (RRCConnectionReconfigurationComplete) to the first base station apparatus 3 (step S132). . Furthermore, based on the information of the RRC connection reset message, the following reset process is started (step S133).
- the terminal device 2 includes the mobility control information of the secondary cell group and the mobility control information of the master cell group (not handover) in the RRC connection reconfiguration message, or RRC.
- the setting of the secondary cell group included in the connection reconfiguration message is set to be released, the function of the MAC layer of the secondary cell group may be reset based on the setting.
- the terminal device 2 uses the PDCP layer. Need not be re-established or data recovered.
- the DRB split DRB
- SCG DRB SCG-only DRB
- the terminal device 2 may execute data recovery of the PDCP layer.
- the terminal device 2 when the terminal device 2 includes the mobility control information of the secondary cell group in the RRC connection reconfiguration message, or when the setting of the secondary cell group included in the RRC connection reconfiguration message is set to be released, The RLC layer of the master cell group and / or the RLC layer of the secondary cell group may be reestablished. Further, the terminal device 2 includes the mobility control information of the secondary cell group in the RRC connection reconfiguration message and does not include the mobility control information of the master cell group (not a handover), or is included in the RRC connection reconfiguration message. When the setting of the secondary cell group to be set is set to be released, other cells except the PSCell may be inactivated among the SCells of the secondary cell group.
- step S133 when the received secondary cell group setting is set to be released, the terminal device 2 releases the secondary cell group setting excluding the DRB setting, and the secondary cell group You may stop the timer.
- the terminal device 2 may reconfigure the specific radio resource setting when the RRC connection reconfiguration message includes a radio resource setting specific to the terminal device 2. Moreover, the terminal device 2 performs addition or change of PSCell, when the addition / change information of the cell used as PSCell is included in the RRC connection reconfiguration message. Moreover, the terminal device 2 may perform addition or change of SCell of a secondary cell group, when the addition / change information of the cell used as SCell of a secondary cell group is contained in a RRC connection reset message. Moreover, when the information for releasing the SCell of the secondary cell group is included in the RRC connection reconfiguration message, the terminal device 2 may execute the release of the SCell of the secondary cell group.
- the terminal device 2 is newly synchronized because the downlink of the target PSCell (first cell) has been synchronized. Although it is not necessary to start, downlink synchronization based on new numerology information may be started.
- the terminal device 2 may detect the synchronization signal based on the information.
- the terminal device 2 may try to detect the synchronization signal using a predetermined numerology. Thereby, the numerology of the synchronization signal detected when there are a plurality of numerologies that may be used for the synchronization signal of the target cell can be uniquely specified.
- the terminal device 2 may start a random access procedure and transmit a random access preamble to transmit uplink data.
- the third base station apparatus 3 that has received the random access preamble detects a transmission timing shift of the terminal apparatus 2 and transmits a random access response including information (timing advance command) for correcting the shift to the terminal apparatus 2.
- the terminal device 2 may transmit the random access preamble based on the information.
- the terminal device 2 may transmit the random access preamble using a predetermined numerology.
- an appropriate numerology can be set for each terminal device 2 when a plurality of numerologies are supported in the target cell.
- the terminal device 2 may receive the random access response based on the information.
- the terminal device 2 may receive the random access response using the same numerology as the predetermined numerology or the synchronized synchronization signal. Good.
- an appropriate numerology can be set for each terminal device 2.
- the terminal apparatus 2 may transmit an RRC connection reconfiguration completion message (RRCConnectionReconfigurationComplete) to the first base station apparatus 3 after synchronization with the downlink and / or uplink with the PSCell.
- the RRC connection reconfiguration completion message may be transmitted by PCell (allocated with SRB transmission resources).
- numerologies used in a cell can be specified.
- the DRB (and / or SRB) assigned to the SCG MAC entity may be reassigned to the default (MCG MAC entity).
- the MAC layer related to the MAC entity to be reassigned may be reset.
- the RLC layer associated with the released MAC entity and / or the reassigned MAC entity may be re-established.
- FIG. 14 is a diagram illustrating an example of the above (8E) radioResourceConfigDedicated, (14A) srb-ToAddModList, (14B) drb-ToAddModList, (14C) drb-ToReleaseList, (14D) macFigConD included.
- (14A) srb-ToAddModList, (14B) drb-ToAddModList, and (14C) drb-ToReleaseList are information used for setting, changing, and / or releasing SRBs and DRBs.
- (14D) mac-MainConfig is information for changing the setting of the MAC layer.
- (14E) physicalConfigDedicated is information regarding the channel setting of the physical layer.
- FIG. 15 is a diagram illustrating an example of notifying information of each MAC entity when one cell supports two MAC entities.
- m-mac-MainConfig and s-mac-MainConfig each include a setting of a MAC entity, and may further include information on a DRB (and / or SRB) transmitted / received using the MAC entity.
- a part or all of an identifier (drbIdentity) for identifying each DRB included in drb-ToAddModList and an identifier (srbIdentity) for identifying each SRB included in srb-ToAddModList are listed as m-mac-MainConfig. And s-mac-MainConfig.
- DRB (and / or SRB) not included in any setting may be assigned to a default (for example, a MAC entity set in m-mac-MainConfig). Thereby, signaling can be reduced.
- the DRB (and / or SRB) assigned to the MAC entity specified by s-mac-MainConfig is specified by default (for example, m-mac-MainConfig).
- (MAC entity) may be reassigned.
- the MAC layer related to the MAC entity to be reassigned may be reset.
- the RLC layer associated with the released MAC entity and / or the reassigned MAC entity may be re-established.
- FIG. 16 is a diagram illustrating another example of notifying information on each MAC entity when one cell supports two MAC entities.
- mac-MainConfig includes settings of one or more MAC entities, and each MAC entity setting may include an identifier (macConfidentity) for identifying the settings. Furthermore, information that links drbIdentity or srbIdentity with macConfidentity may be included as macIdToAddModList. Further, an identifier (macId) for identifying each piece of associated information may be included in macIdToAddModList. Furthermore, as information for deleting (releasing) the association, a list including one or more macIds to be deleted may be included as macIdToRemoveList. Thereby, it is possible to specify which MAC entity (s) is used to transmit / receive DRB (and / or SRB). Also, DRB (and / or SRB) that is not included in any setting may be assigned to a default (for example, a MAC entity specified by a default macConfident). Thereby, signaling can be reduced.
- a default for example, a MAC entity specified by a default macCon
- the DRB (and / or SRB) assigned to the MAC entity specified by macIdToRemoveList may be reassigned to the default (for example, the MAC entity specified by the default macConfidentity).
- the MAC layer related to the MAC entity to be reassigned may be reset.
- the RLC layer associated with the released MAC entity and / or the reassigned MAC entity may be re-established.
- the base station device 3 when the PCell and the PSCell are the same cell, the base station device 3 does not include the mobility control information (MobilityControlInfoSCG) of the secondary cell group in the RRC connection reconfiguration message, and the PCell and the PSCell In the case of different cells (and / or different frequencies), the mobility control information (MobilityControlInfoSCG) of the secondary cell group may be included in the RRC connection reconfiguration message. Thereby, unnecessary signaling can be avoided.
- MobilityControlInfoSCG mobility control information of the secondary cell group in the RRC connection reconfiguration message
- the terminal device 2 includes a part or all of the following information (A) to (D) in the radio
- D Information indicating the category of the terminal device 2 that supports the above (C)
- the base station apparatus 3 can perform an appropriate radio resource setting for the terminal apparatus 2.
- each DRB setting of drb-ToAddModList includes information indicating which (one or more) of the numerologies to use. May be.
- the word “numerology” has been used for convenience, but some or all of the following parameters (A) to (G) used in the system are numerology.
- transmission time interval (TTI) information may be included in the MAC layer setting (for example, each mac-MainConfig).
- the physical layer channel setting (for example, radioResourceConfigDedicated and physicalConfigDedicated) may include subcarrier interval information (for each signal and / or channel) and / or information on the number of OFDM symbols included in one subframe.
- the physical layer of the terminal device 2 may notify the MAC layer of the terminal device 2 of the transmission time interval of the received downlink data and / or the acquired transmission time interval of the uplink transmission resource. . Thereby, appropriate scheduling based on the transmission time interval can be performed in the MAC layer of the terminal device 2.
- FIG. 2 is a schematic block diagram showing the configuration of the terminal device 2 of the present embodiment.
- the terminal device 2 includes a wireless transmission / reception unit 20 and an upper layer processing unit 24.
- the wireless transmission / reception unit 20 includes an antenna unit 21, an RF (Radio Frequency) unit 22, and a baseband unit 23.
- the upper layer processing unit 24 includes a medium access control layer processing unit 25 and a radio resource control layer processing unit 26.
- the wireless transmission / reception unit 20 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit. Moreover, you may provide the control part which controls the operation
- the upper layer processing unit 24 outputs the uplink data (transport block) generated by the user operation or the like to the wireless transmission / reception unit 20.
- the upper layer processing unit 24 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and a radio resource control (Radio). A part or all of the processing of the Resource Control (RRC) layer is performed.
- MAC Medium Access Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- Radio radio resource control
- the medium access control layer processing unit 25 included in the upper layer processing unit 24 performs processing of the medium access control layer.
- the medium access control layer processing unit 25 controls transmission of the scheduling request based on various setting information / parameters managed by the radio resource control layer processing unit 26.
- the radio resource control layer processing unit 26 included in the upper layer processing unit 24 performs processing of the radio resource control layer.
- the radio resource control layer processing unit 26 manages various setting information / parameters of the own device.
- the radio resource control layer processing unit 26 sets various setting information / parameters based on the upper layer signal received from the base station apparatus 3. That is, the radio resource control layer processing unit 26 sets various setting information / parameters based on information indicating various setting information / parameters received from the base station apparatus 3.
- the wireless transmission / reception unit 20 performs physical layer processing such as modulation, demodulation, encoding, and decoding.
- the radio transmission / reception unit 20 separates, demodulates, and decodes the signal received from the base station apparatus 3 and outputs the decoded information to the upper layer processing unit 24.
- the radio transmission / reception unit 20 generates a transmission signal by modulating and encoding data, and transmits the transmission signal to the base station apparatus 3.
- the RF unit 22 converts the signal received via the antenna unit 21 into a baseband signal by orthogonal demodulation (down-conversion: down cover), and removes unnecessary frequency components.
- the RF unit 22 outputs the processed analog signal to the baseband unit.
- the baseband unit 23 converts the analog signal input from the RF unit 22 into a digital signal.
- the baseband unit 23 removes a portion corresponding to CP (Cyclic Prefix) from the converted digital signal, performs fast Fourier transform (FFT) on the signal from which CP is removed, and extracts a frequency domain signal. To do.
- CP Cyclic Prefix
- FFT fast Fourier transform
- the baseband unit 23 performs an inverse fast Fourier transform (IFFT) on the data to generate an SC-FDMA symbol, adds a CP to the generated SC-FDMA symbol, and converts the baseband digital signal to Generate and convert baseband digital signals to analog signals.
- IFFT inverse fast Fourier transform
- the RF unit 22 removes an extra frequency component from the analog signal input from the baseband unit 23 using a low-pass filter, up-converts the analog signal to a carrier frequency, and transmits it through the antenna unit 21. To do.
- the RF unit 22 amplifies power. Further, the RF unit 22 may have a function of controlling transmission power.
- the RF unit 22 is also referred to as a transmission power control unit.
- the terminal device 2 may be configured to include a plurality of parts or all of each unit in order to support transmission / reception processing in the same subframe of a plurality of frequencies (frequency bands, frequency bandwidths) or cells.
- FIG. 3 is a schematic block diagram showing the configuration of the base station apparatus 3 of the present embodiment.
- the base station apparatus 3 includes a radio transmission / reception unit 30 and an upper layer processing unit 34.
- the wireless transmission / reception unit 30 includes an antenna unit 31, an RF unit 32, and a baseband unit 33.
- the upper layer processing unit 34 includes a medium access control layer processing unit 35 and a radio resource control layer processing unit 36.
- the wireless transmission / reception unit 30 is also referred to as a transmission unit, a reception unit, or a physical layer processing unit. Moreover, you may provide the control part which controls the operation
- the upper layer processing unit 34 includes a medium access control (MAC: Medium Access Control) layer, a packet data integration protocol (Packet Data Convergence Protocol: PDCP) layer, a radio link control (Radio Link Control: RLC) layer, and a radio resource control (Radio). A part or all of the processing of the Resource Control (RRC) layer is performed.
- MAC Medium Access Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- Radio radio resource control
- the medium access control layer processing unit 35 included in the upper layer processing unit 34 performs processing of the medium access control layer.
- the medium access control layer processing unit 35 performs processing related to the scheduling request based on various setting information / parameters managed by the radio resource control layer processing unit 36.
- the radio resource control layer processing unit 36 included in the upper layer processing unit 34 performs processing of the radio resource control layer.
- the radio resource control layer processing unit 36 generates downlink data (transport block), system information, RRC message, MAC CE (Control Element), etc. arranged in the physical downlink shared channel, or obtains it from the upper node. , Output to the wireless transceiver 30.
- the radio resource control layer processing unit 36 manages various setting information / parameters of each terminal device 2.
- the radio resource control layer processing unit 36 may set various setting information / parameters for each of the terminal devices 2 via upper layer signals. That is, the radio resource control layer processing unit 36 transmits / notifies information indicating various setting information / parameters.
- the function of the wireless transmission / reception unit 30 is the same as that of the wireless transmission / reception unit 20, description thereof is omitted.
- the base station apparatus 3 is connected to one or more transmission / reception points 4, some or all of the functions of the wireless transmission / reception unit 30 may be included in each transmission / reception point 4.
- the upper layer processing unit 34 transmits (transfers) a control message or user data between the base station apparatuses 3 or between the upper network apparatus (MME, S-GW (Serving-GW)) and the base station apparatus 3. ) Or receive.
- MME upper network apparatus
- S-GW Serving-GW
- FIG. 3 other constituent elements of the base station apparatus 3 and transmission paths for data (control information) between the constituent elements are omitted, but other functions necessary for operating as the base station apparatus 3 are omitted. It is clear that it has a plurality of blocks as constituent elements.
- a radio resource management layer processing unit and an application layer processing unit exist above the radio resource control layer processing unit 36.
- part in the figure is an element that realizes the functions and procedures of the terminal device 2 and the base station device 3, which are also expressed by terms such as section, circuit, component device, device, and unit.
- Each of the parts denoted by reference numerals 20 to 26 included in the terminal device 2 may be configured as a circuit.
- Each of the parts denoted by reference numerals 30 to 36 included in the base station device 3 may be configured as a circuit.
- a first aspect of the present invention is a terminal device that communicates with a base station device via a cell, and receives a radio resource control (RRC) connection reconfiguration message from the base station device; Based on the parameter setting included in the radio resource control connection reconfiguration message, the control unit configured to set the parameter, the parameter setting for each of the plurality of cell groups, the setting for the target cell identifier information, subcarrier interval, Including at least information on a time length of a minimum unit of scheduling and / or information indicating a slot length, and performing re-establishment of PDCP layer or data recovery when the same cell is not included in the plurality of cell groups, PDCP layer data recovery is not performed when the same cell is included in multiple cell groups
- RRC radio resource control
- a second aspect of the present invention is a base station device that communicates with a terminal device via a cell, a receiving unit that receives information on radio access capability from the terminal device, and a radio resource for the terminal device.
- a transmission unit that transmits a control (RRC) connection reconfiguration message, and a control unit that generates a parameter setting included in the radio resource control connection reconfiguration message, wherein the parameter setting is a target cell for each of a plurality of cell groups.
- Identifier information, subcarrier interval settings, scheduling minimum unit time length information and / or slot length information, and based on the radio access capability information, the same cell is assigned to the plurality of cell groups. Determine whether it can be included.
- a third aspect of the present invention is a communication method applied to a terminal device that communicates with a base station device via a cell, wherein a radio resource control (RRC) connection reconfiguration message is sent from the base station device.
- RRC radio resource control
- a fourth aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device via a cell, and receives a radio resource control (RRC) connection reconfiguration message from the base station device.
- RRC radio resource control
- One aspect of the present invention is a terminal device that communicates with a base station device via a cell, a transmission unit that transmits capability information to the base station device, and radio resource control (RRC) from the base station device ) And a control unit configured to set parameters based on parameters included in the radio resource control reset message, and the capability information is a maximum supported by the terminal device. Contains information on the number of MAC entities.
- One aspect of the present invention is a base station device that communicates with a terminal device via a cell, and receives capability information including information on the maximum number of MAC entities supported by the terminal device from the terminal device
- a transmission unit that transmits a radio resource control (RRC) reconfiguration message to the terminal device, and a control unit that generates a parameter included in the radio resource control reconfiguration message.
- RRC radio resource control
- One aspect of the present invention is a communication method applied to a terminal apparatus that communicates with a base station apparatus via a cell, the step of transmitting capability information to the base station apparatus, and from the base station apparatus Receiving at least a radio resource control (RRC) reconfiguration message; and setting a parameter based on a parameter included in the radio resource control reconfiguration message; Contains information on the maximum number of MAC entities supported.
- RRC radio resource control
- One aspect of the present invention is an integrated circuit mounted on a terminal device that communicates with a base station device via a cell, the function of transmitting capability information to the base station device, and the base station device A function of receiving a radio resource control (RRC) reconfiguration message and a function of setting a parameter based on a parameter included in the radio resource control reconfiguration message;
- the information includes information on the maximum number of MAC entities supported by the terminal device.
- the terminal device 2 and the base station device 3 can communicate efficiently.
- the uplink transmission scheme can be applied to both communication systems of the FDD (frequency division duplex) scheme and the TDD (time division duplex) scheme.
- the names of the parameters and events shown in the embodiments are referred to for convenience of explanation, and even if the names actually applied differ from the names of the embodiments of the present invention, It does not affect the gist of the invention claimed in the embodiments of the invention.
- connection used in each embodiment is not limited to a configuration in which a certain device and another certain device are directly connected using a physical line, and is logically connected. And a configuration in which wireless connection is performed using a wireless technology.
- the terminal device 2 is also called a user terminal, a mobile station device, a communication terminal, a mobile device, a terminal, a UE (User Equipment), and an MS (Mobile Station).
- the base station device 3 includes a radio base station device, a base station, a radio base station, a fixed station, an NB (NodeB), an eNB (evolved NodeB), a BTS (Base Transceiver Station), a BS (Base Station), an NR NB (NR NodeB). ), NNB, TRP (Transmission and Reception Point), gNB (next generation Node B).
- the base station device 3 can be realized as an aggregate (device group) composed of a plurality of devices.
- Each of the devices constituting the device group may include a part or all of each function or each functional block of the base station device 3 according to the above-described embodiment.
- the device group only needs to have one function or each function block of the base station device 3.
- the terminal device 2 according to the above-described embodiment can also communicate with the base station device 3 as an aggregate.
- the base station device 3 in the above-described embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) or a next generation core network (NextGen Core).
- the base station device 3 in the above-described embodiment may have a part or all of the functions of the upper node for the eNodeB.
- a program that operates on an apparatus according to one aspect of the present invention is a program that controls a central processing unit (CPU) or the like to function a computer so as to realize the function of the embodiment according to one aspect of the present invention. Also good.
- the program or information handled by the program is temporarily stored in a volatile memory such as a Random Access Memory (RAM), a non-volatile memory such as a flash memory, a Hard Disk Drive (HDD), or other storage system.
- RAM Random Access Memory
- HDD Hard Disk Drive
- a program for realizing the functions of the embodiments according to one aspect of the present invention may be recorded on a computer-readable recording medium. You may implement
- the “computer system” here is a computer system built in the apparatus, and includes hardware such as an operating system and peripheral devices.
- the “computer-readable recording medium” refers to a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a medium that dynamically holds a program for a short time, or other recording medium that can be read by a computer. Also good.
- each functional block or various features of the apparatus used in the above-described embodiments can be implemented or executed by an electric circuit, for example, an integrated circuit or a plurality of integrated circuits.
- Electrical circuits designed to perform the functions described herein can be general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or others Programmable logic devices, discrete gate or transistor logic, discrete hardware components, or a combination thereof.
- a general purpose processor may be a microprocessor or a conventional processor, controller, microcontroller, or state machine.
- the electric circuit described above may be configured by a digital circuit or an analog circuit.
- one or more aspects of the present invention can use a new integrated circuit based on the technology.
- the present invention is not limited to the above-described embodiment.
- an example of the apparatus has been described.
- the present invention is not limited to this, and a stationary or non-movable electronic device installed indoors or outdoors, such as an AV device, a kitchen device, It can be applied to terminal devices or communication devices such as cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other daily life equipment.
- One embodiment of the present invention is used in, for example, a communication system, a communication device (for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device), an integrated circuit (for example, a communication chip), a program, or the like. be able to.
- a communication device for example, a mobile phone device, a base station device, a wireless LAN device, or a sensor device
- an integrated circuit for example, a communication chip
- a program or the like.
- Terminal device 3
- Base station device 20
- Radio transmission / reception unit 21 22
- Antenna unit 22 22
- RF unit 23 23
- Baseband unit 24 34
- Upper layer processing unit 25 35
- Medium access control layer processing unit 26 36
- Radio resource Control layer processor 4 4
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Abstract
Description
本願は、2016年12月27日に日本に出願された特願2016-252807号について優先権を主張し、その内容をここに援用する。
・PBCH(Physical Broadcast CHannel)
・PCCH(Physical Control CHannel)
・PSCH(Physical Shared CHannel)
・PRACH(Physical Random Access CHannel)
・同期信号(Synchronization signal:SS)
・参照信号(Reference Signal:RS)
・下りリンクパート(デュレーション)
・ギャップ
・上りリンクパート(デュレーション)のうち1つまたは複数を含んでよい。
3 基地局装置
20、30 無線送受信部
21、31 アンテナ部
22、32 RF部
23、33 ベースバンド部
24、34 上位層処理部
25、35 媒体アクセス制御層処理部
26、36 無線リソース制御層処理部
4 送受信点
Claims (4)
- 基地局装置とセルを介して通信する端末装置であって、
前記基地局装置に能力情報を送信する送信部と、
前記基地局装置から無線リソース制御(RRC)の再設定メッセージを受信する受信部と、
前記無線リソース制御の再設定メッセージに含まれるパラメータに基づき、パラメータの設定を行う制御部とを備え、
前記能力情報は、端末装置がサポートする最大のMACエンティティ数の情報を含む
端末装置。 - 端末装置とセルを介して通信する基地局装置であって、
前記端末装置から、前記端末装置がサポートする最大のMACエンティティ数の情報を含む能力情報を受信する受信部と、
前記端末装置に無線リソース制御(RRC)の再設定メッセージを送信する送信部と、
前記無線リソース制御の再設定メッセージに含まれるパラメータを生成する制御部とを備え、
前記パラメータは、データ無線ベアラに対応する1以上のサブキャリア間隔に関する設定情報を少なくとも含み、
前記能力情報に基づき、前記サブキャリア間隔に関する設定情報を設定する
基地局装置。 - 基地局装置とセルを介して通信する端末装置に適用される通信方法であって、
前記基地局装置に能力情報を送信するステップと、
前記基地局装置から無線リソース制御(RRC)の再設定メッセージを受信するステップと、
前記無線リソース制御の再設定メッセージに含まれるパラメータに基づき、パラメータの設定を行うステップとを少なくとも含み、
前記能力情報は、端末装置がサポートする最大のMACエンティティ数の情報を含む
通信方法。 - 基地局装置とセルを介して通信する端末装置に実装される集積回路であって、
前記基地局装置に能力情報を送信する機能と、
前記基地局装置から無線リソース制御(RRC)の再設定メッセージを受信する機能と、
前記無線リソース制御の再設定メッセージに含まれるパラメータに基づき、パラメータの設定を行う機能とを前記端末装置に対して発揮させ、
前記能力情報は、端末装置がサポートする最大のMACエンティティ数の情報を含む
集積回路。
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EP17888134.8A EP3565317B1 (en) | 2016-12-27 | 2017-12-14 | Terminal device, base station device, communication method, and integrated circuit |
US16/472,928 US11283581B2 (en) | 2016-12-27 | 2017-12-14 | Terminal apparatus, base station apparatus, communication method, and integrated circuit |
MX2019007706A MX2019007706A (es) | 2016-12-27 | 2017-12-14 | Aparato terminal, aparato de estacion base, metodo de comunicación y circuito integrado. |
AU2017387731A AU2017387731B2 (en) | 2016-12-27 | 2017-12-14 | Terminal apparatus, base station apparatus, communication method, and integrated circuit |
CN201780075388.3A CN110140383B (zh) | 2016-12-27 | 2017-12-14 | 终端装置、基站装置、通信方法以及集成电路 |
RU2019119567A RU2762797C2 (ru) | 2016-12-27 | 2017-12-14 | Терминальное устройство, устройство базовой станции, способ связи и интегральная схема |
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JP2016252807A JP2020031254A (ja) | 2016-12-27 | 2016-12-27 | 端末装置、基地局装置、通信方法、および、集積回路 |
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CN112913322A (zh) * | 2018-10-31 | 2021-06-04 | 夏普株式会社 | 终端装置、基站装置以及方法 |
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EP3565317B1 (en) | 2023-09-06 |
AU2017387731B2 (en) | 2022-03-17 |
JP2020031254A (ja) | 2020-02-27 |
RU2762797C2 (ru) | 2021-12-23 |
CN110140383A (zh) | 2019-08-16 |
CN110140383B (zh) | 2022-04-26 |
AU2017387731A1 (en) | 2019-07-11 |
EP3565317A4 (en) | 2020-12-30 |
RU2019119567A (ru) | 2021-01-29 |
EP3565317A1 (en) | 2019-11-06 |
US20190356460A1 (en) | 2019-11-21 |
RU2019119567A3 (ja) | 2021-04-06 |
US11283581B2 (en) | 2022-03-22 |
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