Terminals and communication methods

Abstract

To provide a terminal (user device) and communication method that are given priority over scheduling terminals that have a function of controlling the communication of other terminals.SOLUTION: In a wireless communication system, a terminal 20 has a control unit that controls communication and a transmission / reception unit that transmits or receives at least one of information related to communication control and setting information. The transmission / reception unit receives from a base station device a notification to be set as a scheduling terminal that controls communication.SELECTED DRAWING: Figure 11

Description

[[Technical Field]]

[0001] The present invention relates to a terminal (user equipment) and a communication method in a wireless communication system. [[Background Art]]

[0002] In LTE (Long Term Evolution) and successor systems to LTE (e.g., LTE-A (LTE Advanced), NR (New Radio), also referred to as 5G), sidelink (also referred to as D2D (Device to Device)) technology, in which communication devices such as UEs perform direct communication without intervention of a base station gNB, has been studied (Non-Patent Document 1).

[0003] Furthermore, realization of V2X (Vehicle to Everything) has been studied and standardization is being promoted. Here, V2X is part of ITS (Intelligent Transport Systems), and is a general term encompassing: V2V (Vehicle to Vehicle), which refers to a form of communication performed between vehicles; V2I (Vehicle to Infrastructure), which refers to a form of communication performed between a vehicle and a road-side unit (RSU) installed on the side of a road; V2N (Vehicle to Nomadic device), which refers to a form of communication performed between a vehicle and a driver's mobile terminal; and V2P (Vehicle to Pedestrian), which refers to a form of communication performed between a vehicle and a pedestrian's mobile terminal. [[Prior Art Documents]] [[Non-Patent Documents]]

[0004] [[Non-Patent Document 1]] 3GPP TS 36.213 V14.3.0 (2017-06) [[Summary of the Invention]] [[Problem to be Solved by the Invention]]

[0005] The following channels are included in the direct-to-terminal communication channels used in direct-to-terminal communication (sidelink technology):

[0006] The channel that transmits control information such as SCI (Sidelink Control Information) is called PSCCH (Physical Sidelink Control Channel), and the channel that transmits data is called PSSCH (Physical Sidelink Shared Channel). Furthermore, NR V2X specifies support for PSCCH and HARQ (Hybrid Automatic Repeat Request) operation for PSCCH, and defines inter-terminal direct communication feedback control information (Sidelink Feedback Control Information (SFCI)) including HARQ-ACK. SFCI is transmitted over the inter-terminal direct communication feedback channel (Physical Sidelink Feedback Channel (PSFCH)).

[0007] As one of the sidelink transmission modes for NR-V2X, it has been proposed that in a terminal group (UE group) consisting of a scheduling terminal (scheduling UE) and member terminals (member UEs), the scheduling terminal schedules the member terminals. This transmission mode may be called sidelink transmission mode 2-d, or it may have a different name. The scheduling terminal may also be called a header terminal (header UE), and the member terminals may be called non-scheduling terminals, non-header terminals, etc.

[0008] In the future, the widespread adoption of scheduling terminals with scheduling capabilities is anticipated. Furthermore, scheduling terminals are not expected to be limited to vehicle-related terminals such as V2X, but will be used for a wide range of applications. They are also expected to be more functional and costly than terminals that are not scheduling terminals. However, the advantages of scheduling terminals that are suitable for scheduling other terminals have not been clearly defined.

[0009] The present invention has been made in view of the above points, and aims to provide a technology that provides preferential treatment to terminals that have functions to control the communication of other terminals, such as scheduling of other terminals. The present invention is not limited to terminal-to-terminal communication in V2X, but may be applied to any terminal. Furthermore, the present invention is not limited to terminals, but may be applied to, for example, base stations, access points, nodes, and IAB nodes. Also, scheduling in the present invention is not limited to direct terminal-to-terminal communication, but may be communication between a base station and a terminal. [Means for solving the problem]

[0010] According to the disclosed technology, the system includes a transceiver unit that receives configuration information related to the control of communications of other terminals from a base station device, and a control unit that, based on the configuration information, makes a dedicated frequency band or resource available in addition to a common frequency band or resource, wherein the transceiver unit receives new configuration candidates for uplink transmission or downlink transmission before receiving the configuration information, and transmits a response to the configuration candidate to the base station device. Furthermore, it transmits a request to the base station device to be configured as a scheduling terminal that controls the communication of the other terminals, and receives a response to the request from the base station device. A device will be provided. [Effects of the Invention]

[0011] According to the disclosed technology, a technology is provided that provides preferential treatment to a terminal that has the function of controlling the communications of other terminals. [Brief explanation of the drawing]

[0012] [Figure 1] It is a diagram for explaining four types of sidelink transmission modes in NR-V2X. [Figure 2] It is a diagram for explaining a scheduling terminal. [Figure 3] It is a diagram for explaining the problem. [Figure 4] It is a diagram showing an example of preferential treatment. [Figure 5] It is a diagram showing another example of preferential treatment. [Figure 6] It is a diagram for explaining inter-UE mux for URLLC (Ultra-Reliable Low-Latency Communication). [Figure 7] It is a diagram for explaining an example of transmission and reception of messages between a terminal and a base station apparatus. [Figure 8] It is a diagram for explaining another example of transmission and reception of messages between a terminal and a base station apparatus. [Figure 9] It is a diagram for explaining still another example of transmission and reception of messages between a terminal and a base station apparatus. [Figure 10] It is a diagram showing an example of a functional configuration of the base station apparatus 10 according to the embodiment. [Figure 11] It is a diagram showing an example of a functional configuration of the terminal 20 according to the embodiment. [Figure 12] It is a diagram showing an example of a hardware configuration of the base station apparatus 10 and the terminal 20 according to the embodiment. DESCRIPTION OF EMBODIMENTS

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiments described below are merely examples, and the embodiments to which the present invention is applied are not limited to the following embodiments.

[0014] (Sidelink Transmission Mode) The sidelink transmission mode in NR-V2X will be described.

[0015] FIG. 1 is a diagram for explaining four types of sidelink transmission modes in NR-V2X.

[0016] In sidelink transmission mode 1 of NR-V2X, a terminal 20A transmits a PSCCH / PSSCH to a terminal 20B based on SL scheduling by a base station apparatus 10.

[0017] In sidelink transmission mode 2 of NR-V2X, PSCCH / PSSCH transmission is performed based on resource selection by the terminal itself. The sidelink transmission mode 2 of NR-V2X is further subdivided: in sidelink transmission mode 2-a of NR-V2X, the terminal 20A transmits a PSCCH / PSSCH to the terminal 20B based on resource selection by the terminal 20A itself, and the terminal 20B transmits a PSCCH / PSSCH to the terminal 20A based on resource selection by the terminal 20B itself. In sidelink transmission mode 2-c of NR-V2X, the terminal 20A transmits a PSSCH to the terminal 20B in accordance with RRC configuration of a resource pattern notified by the base station apparatus 10 or defined in the specification.

[0018] In sidelink transmission mode 2-d of NR-V2X, the terminal 20A performs scheduling for transmission by the terminal 20B by transmitting SL scheduling to the terminal 20B, and the terminal 20B transmits a PSCCH / PSSCH to the terminal 20A based on the scheduling.

[0019] (Scheduling Terminal) A scheduling UE in NR-V2X will be described.

[0020] FIG. 2 is a diagram for explaining a scheduling terminal.

[0021] As shown in Figure 2, a concept (mechanism) is being considered in which a scheduling terminal schedules (controls) transmissions for nearby terminals. While such a mechanism is not supported in NR-V2X release 16, it is conceivable that it will be supported in release 17, which will extend NR's sidelink capabilities. In the future, it is conceivable that this type of terminal control will become mainstream. Furthermore, such a mechanism is not limited to vehicle-related terminals like V2X, but is expected to become widespread in terminals for all kinds of applications.

[0022] Figure 3 is a diagram illustrating the problem. Figure 3 shows terminals that are performing scheduling terminal functions, terminals that can become scheduling terminals but are not performing scheduling terminal functions, and terminals that cannot become scheduling terminals.

[0023] A terminal capable of acting as a scheduling terminal would likely be highly functional and costly. However, if there were no advantages to being a terminal that schedules transmissions from other terminals, it is conceivable that no terminals would want to become scheduling terminals, hindering the widespread adoption of the scheduling terminal concept (mechanism).

[0024] If all terminals were required to support scheduling terminal functionality (for example, if it were mandated as a mandatory feature for D2D terminals), the cost of all terminals would increase. For instance, in types of D2D terminals where low cost is essential, the price might rise to accommodate scheduling terminal functionality.

[0025] Therefore, in order to make the scheduling terminal concept viable, it is considered necessary to offer advantages that are appropriate for a terminal that performs scheduling for other terminals.

[0026] (Embodiment 1) In the following explanation, "a terminal that operates as a scheduling terminal" may be replaced with "a terminal that can become a scheduling terminal."

[0027] One embodiment of the present invention is to provide preferential treatment to a terminal that operates as a scheduling terminal.

[0028] (A1) Figure 4 shows an example of preferential treatment. For example, as shown in Figure 4, a dedicated carrier may be provided to a terminal that operates as a scheduling terminal, in addition to a common carrier. The carrier may be replaced with a carrier component, a Bandwidth Part (BWP), or a frequency range.

[0029] (A2) Figure 5 shows another example of preferential treatment. As shown in Figure 5, more resources may be provided to terminals that operate as scheduling terminals. As more resources provided to terminals that operate as scheduling terminals, for example, more opportunities to send SRs (Scheduling Requests) may be provided. As shown in Figure 5, while the opportunity to send an SR for a normal terminal is once every five slots, the opportunity to send an SR for a terminal that operates as a scheduling terminal is three times every five slots (an opportunity to send an SR is provided in all slots where an SR can be sent). In this way, a terminal that operates as a scheduling terminal can send an SR immediately when it wants to send one. For example, the period of Configured Grant (CG) may be shortened (e.g., 1 slot) or the frequency may be increased for a terminal that operates as a scheduling terminal. Also, the period of Semi Persistent Scheduling (SPS) on the downlink may be shortened or the frequency may be increased for a terminal that operates as a scheduling terminal. Alternatively, for terminals acting as scheduling terminals, the aggregation level can be increased in the PDCCH (Physical Downlink Control Channel) (e.g., 4 or higher).

[0030] (A3) As a preferential treatment for terminals operating as scheduling terminals, terminals operating as scheduling terminals may be prevented from receiving RRC connection rejections (RRCReject) from the network.

[0031] (A4) Figure 6 is a diagram illustrating inter-UE mux for URLLC (Ultra-Reliable Low-Latency Communication). As shown in Figure 6, as preferential treatment for terminals acting as scheduling terminals, in inter-UE mux for URLLC, terminals acting as scheduling terminals may be prevented from having their own transmission resources canceled. In the example in Figure 6, the first slot shows a UL grant for a normal terminal (upper) and a UL grant for a terminal acting as a scheduling terminal (lower). In the third slot, a UL grant for URLLC occurs, and a cancellation indication is sent via a common PDCCH. As a result, in the fourth slot, normal terminals cannot send a PUSCH (Physical Uplink Shared Channel), while terminals acting as scheduling terminals can send a PUSCH. Furthermore, regarding cancellation indications sent on a per-terminal basis, terminals acting as scheduling terminals may be prevented from receiving cancellation indications.

[0032] (A5) As a preferential treatment for terminals operating as scheduling terminals, in inter-terminal multiplexing for URLLC, the transmission resources of terminals operating as scheduling terminals may be prevented from overlapping with transmissions of other terminals (e.g., URLLC terminals) that have increased their transmission power (power-boosted).

[0033] (A6) As preferential treatment for terminals operating as scheduling terminals, regarding preemption indications for transmissions to other terminals in downlink transmissions, the receiving resources of a terminal operating as a scheduling terminal may be prevented from being preempted by other terminals (e.g., URLLC terminals). A preemption indication is a notification indicating that, after a downlink transmission has been set, transmissions to other terminals set later will be preferentially acquired, and the earlier set downlink transmission has been canceled.

[0034] (A7) As a preferential treatment for terminals operating as scheduling terminals, a higher priority may be set or notified for transmissions / receptions of terminals operating as scheduling terminals than for transmissions / receptions of other terminals.

[0035] As shown in A1-A7 above, providing a high priority to terminals that operate as scheduling terminals can be considered an incentive for terminals to become scheduling terminals.

[0036] (Embodiment 2) As an embodiment of the present invention, it is conceivable that a base station device 10 and a terminal that can serve as a scheduling terminal send and receive messages for negotiation, configuration, and coordination.

[0037] (B0) The base station device 10 may request the terminal 20 to report its ability to operate as a scheduling terminal. The terminal 20 may report to the base station device 10 whether or not it has the ability to operate as a scheduling terminal.

[0038] (B1) Figure 7 illustrates an example of message transmission and reception between a terminal and a base station device. As shown in Figure 7, a terminal capable of operating as a scheduling terminal may request / suggest a preferred configuration of the uplink / downlink (UL / DL) to the base station device 10, and may also provide information regarding such preferred configuration. For example, it may request / suggest / provide a preferred cell and resources.

[0039] (B2) As shown in Figure 7, when terminal 20 is configured / notified as a scheduling terminal, terminal 20 may receive notified / provided settings from, for example, base station equipment 10. For example, the notified settings may be the same as the settings requested by terminal 20. Alternatively, the notified settings may be different from the settings requested by terminal 20. When terminal 20 is configured / notified as a scheduling terminal, such notification may or may not be made.

[0040] (B3) When terminal 20 is notified that it will be set as a scheduling terminal, terminal 20 may respond by indicating whether or not it accepts the setting / notification. If it accepts the setting / notification, terminal 20 may feed back to base station device 10 that it accepts the setting / notification and then operate as a scheduling terminal. If it does not accept the setting / notification, terminal 20 may feed back that it does not accept the setting / notification (rejection).

[0041] (B4) Figure 8 illustrates another example of message transmission and reception between a terminal and a base station device. As shown in Figure 8, terminal 20 may receive candidate new uplink / downlink (UL / DL) configurations from base station device 10 before being configured / notified as a scheduling terminal. If terminal 20 accepts the candidate new configuration, terminal 20 may provide feedback to base station device 10 that it accepts the candidate new configuration. After the feedback, terminal 20 may be configured / notified as a scheduling terminal. Here, the above new configuration may be received again. Alternatively, terminal 20 may assume that the above presented new configuration will be available when terminal 20 is configured / notified as a scheduling terminal. If terminal 20 does not accept the candidate new configuration, terminal 20 may notify that it does not accept becoming a scheduling terminal (rejection). The above candidate new configuration received by terminal 20 may only be the portion that changes the current configuration.

[0042] (B5) Figure 9 illustrates yet another example of message transmission and reception between a terminal and a base station device. As shown in Figure 9, a terminal 20 that can become a scheduling terminal may request the base station device 10 to become a scheduling terminal. Here, the physical resources used when making a request to the base station device 10 may be set as periodic resources (such as periodic resources for SR). The physical resources used when making a request to the base station device 10 may be set as semi-persistent resources (such as SP-CSI) and may be activated / deactivated or released. After the above request, the terminal 20 may receive whether or not the request has been accepted. If it receives confirmation that it has been accepted, the terminal 20 begins to operate as a scheduling terminal. The settings for operating as a scheduling terminal may be provided in advance, provided together with the acceptance, or provided after the acceptance. If it receives confirmation that it has not been accepted, the terminal 20 may be unable to make requests for a predetermined period (e.g., X) from the time of the rejection of acceptance. The specified period (X) may be defined by a slot, a request occasion, a time, a counter, or by any other means. The value of X may be defined, set, or notified. After the above request, terminal 20 may receive a setting / notification to become a scheduling terminal. The setting for operating as a scheduling terminal and / or a new setting for an uplink / downlink (UL / DL) (e.g., a setting for preferential treatment) may be associated with a setting / resource / ID for a periodic / semi-persistent request.

[0043] As described above, in Embodiment 2, terminal 20 can decide whether or not to operate as a scheduling terminal after considering the advantages and disadvantages of operating as a scheduling terminal.

[0044] (Embodiment 3) In one embodiment of the present invention, the network (base station device 10) may provide preferential treatment to a terminal 20 that operates as a scheduling terminal.

[0045] (C1) The network (base station equipment 10) may set a higher priority for terminal 20 that operates as a scheduling terminal than for other terminals 20.

[0046] (C2) The network (base station equipment 10) may provide resources to terminal 20 which operates as a scheduling terminal with higher priority.

[0047] (C3) The network (base station equipment 10) may provide terminal 20 operating as a scheduling terminal with more carriers (e.g., CC) than other terminals 20.

[0048] (C4) The network (base station equipment 10) may consider the communication volume of terminal 20, which operates as a scheduling terminal, to be less than the actual communication volume. For example, it may be considered to be X% of the actual communication volume (X < 100).

[0049] (C5) The network (base station equipment 10) may set the maximum amount of communication that can be communicated without scheduling restrictions to be higher for the terminal 20 that operates as a scheduling terminal than for the maximum amount of communication of other terminals 20.

[0050] (C6) The network (base station equipment 10) may negotiate with terminal 20 that can operate as a scheduling terminal for setting up as a scheduling terminal and / or new settings for uplink / downlink (UL / DL) (e.g., settings for preferential treatment).

[0051] (Device configuration) Next, an example of the functional configuration of the base station device 10 and terminal 20 that perform the processes and operations described above will be explained. The base station device 10 and terminal 20 include functions to implement the embodiments described above. However, the base station device 10 and terminal 20 may each have only some of the functions in the embodiments.

[0052] <Base station equipment 10> Figure 10 is a diagram showing an example of the functional configuration of the base station device 10. As shown in Figure 10, the base station device 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. The functional configuration shown in Figure 7 is merely an example. Any functional classification and functional unit names are acceptable as long as they can perform the operations according to the embodiment of the present invention.

[0053] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The transmitting unit 110 also transmits information such as SL scheduling to the terminal 20. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining information from the received signals, for example, information from a higher layer.

[0054] The configuration unit 130 stores pre-configured configuration information and various configuration information to be transmitted to the terminal 20 in a storage device, and reads it from the storage device as needed. The contents of the configuration information include, for example, information related to V2X configuration.

[0055] As described in the embodiment, the control unit 140 performs processing related to the settings for the terminal 20 to perform V2X. Alternatively, the signal transmission function in the control unit 140 may be included in the transmission unit 110, and the signal reception function in the control unit 140 may be included in the reception unit 120.

[0056] <Terminal 20> Figure 11 shows an example of the functional configuration of terminal 20. As shown in Figure 11, terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. The functional configuration shown in Figure 11 is merely an example. The names of the functional categories and functional units can be anything as long as they can perform the operations according to the embodiment of the present invention.

[0057] The transmitting unit 210 creates a transmission signal from the transmission data and transmits the transmission signal wirelessly. The receiving unit 220 wirelessly receives various signals and obtains signals from higher layers from the received physical layer signals.

[0058] The setting unit 230 stores various setting information received from the base station device 10 or terminal 20 by the receiving unit 220 in its storage device and reads it from the storage device as needed. The setting unit 230 also stores pre-configured setting information. The content of the setting information includes, for example, information related to V2X and HARQ processing.

[0059] The control unit 240 controls D2D communication performed with other terminals 20, as described in the embodiment. The control unit 240 also performs V2X and HARQ processing. The signal transmission function in the control unit 240 may be included in the transmission unit 210, and the signal reception function in the control unit 240 may be included in the reception unit 220.

[0060] (Hardware configuration) The functional configuration diagrams (Figures 10 and 11) used in the description of the embodiments of the present invention above show functional units. These functional blocks (components) are realized by any combination of hardware and / or software. Furthermore, the means of realizing each functional block are not particularly limited. That is, each functional block may be realized by a single device in which multiple elements are physically and / or logically combined, or by two or more physically and / or logically separated devices connected directly and / or indirectly (for example, wired and / or wirelessly) and realized by these multiple devices.

[0061] Furthermore, for example, both the base station device 10 and the terminal 20 in one embodiment of the present invention may function as computers that perform processing according to the embodiment of the present invention. Figure 12 is a diagram showing an example of the hardware configuration of a wireless communication device which is a base station device 10 or a terminal 20 according to an embodiment of the present invention. The base station device 10 and the terminal 20 described above may each be physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0062] In the following explanation, the term "device" can be read as "circuit," "device," "unit," etc. The hardware configuration of the base station device 10 and the terminal 20 may include one or more of the devices shown in 1001 to 1006 in the figure, or it may be configured to omit some of the devices.

[0063] Each function in the base station device 10 and terminal 20 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and storage device 1002, which allows the processor 1001 to perform calculations and control communication by the communication device 1004, and the reading and / or writing of data to the storage device 1002 and auxiliary storage device 1003.

[0064] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may consist of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc.

[0065] Furthermore, the processor 1001 reads programs (program code), software modules, or data from the auxiliary storage device 1003 and / or the communication device 1004 into the storage device 1002, and executes various processes accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above-described embodiment. For example, the transmitter 110, receiver 120, setting unit 130, and control unit 140 of the base station device 10 shown in Figure 10 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Also, for example, the transmitter 210, receiver 220, setting unit 230, and control unit 240 of the terminal 20 shown in Figure 11 may be implemented by a control program stored in the storage device 1002 and operated by the processor 1001. Although the above-described processes have been explained as being executed by one processor 1001, they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented on one or more chips. The program may also be transmitted over a network via a telecommunications line.

[0066] The storage device 1002 is a computer-readable recording medium and may consist of at least one of the following: ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. The storage device 1002 may also be called a register, cache, main memory, etc. The storage device 1002 can store executable programs (program code), software modules, etc., for carrying out the processing according to one embodiment of the present invention.

[0067] The auxiliary storage device 1003 is a computer-readable recording medium and may consist of at least one of the following: an optical disc such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disc, a digital multipurpose disc, a Blu-ray® disc), a smart card, flash memory (e.g., a card, a stick, a key drive), a floppy® disk, a magnetic strip, etc. The auxiliary storage device 1003 may also be called an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, server, or other suitable medium including the storage device 1002 and / or the auxiliary storage device 1003.

[0068] The communication device 1004 is hardware (transmitting / receiving device) for communicating between computers via a wired and / or wireless network, and is also referred to as a network device, network controller, network card, communication module, etc. For example, the transmitting unit 110 and receiving unit 120 of the base station device 10 may be implemented as the communication device 1004. Also, the transmitting unit 210 and receiving unit 220 of the terminal 20 may be implemented as the communication device 1004.

[0069] The input device 1005 is an input device that accepts input from an external source (e.g., a keyboard, mouse, microphone, switch, button, sensor, etc.). The output device 1006 is an output device that outputs to an external source (e.g., a display, speaker, LED lamp, etc.). The input device 1005 and the output device 1006 may be configured as an integrated unit (e.g., a touch panel).

[0070] Furthermore, each device, such as the processor 1001 and the storage device 1002, is connected by a bus 1007 for communicating information. The bus 1007 may consist of a single bus or different buses may be used for communication between devices.

[0071] Furthermore, the base station device 10 and the terminal 20 may each be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or an FPGA (Field Programmable Gate Array), and some or all of each functional block may be realized by such hardware. For example, the processor 1001 may be implemented using at least one of these pieces of hardware.

[0072] (Supplement to the embodiment) While embodiments of the present invention have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, substitutions, etc. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to the present invention, and matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as they do not contradict each other). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical parts. The operation of multiple functional units may be physically performed by one part, or the operation of one functional unit may be physically performed by multiple parts. Regarding the processing procedures described in the embodiments, the order of processing may be changed as long as it does not contradict each other. For the convenience of explaining the processing, the base station device 10 and terminal 20 have been described using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof. The software operated by the processor of the base station device 10 according to an embodiment of the present invention and the software operated by the processor of the terminal 20 according to an embodiment of the present invention may be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.

[0073] Furthermore, the notification of information is not limited to the embodiments / models described herein and may be carried out in other ways. For example, the notification of information may be carried out by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or combinations thereof. Also, RRC signaling may be called RRC messages, and may be, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0074] Each aspect / embodiment described herein may be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G, 5G, FRA (Future Radio Access), W-CDMA®, GSM®, CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth®, and other appropriate systems, and / or next-generation systems extended based thereon.

[0075] The processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described herein may be reordered, provided they are consistent with each other. For example, the methods described herein present various step elements in an exemplary order and are not limited to that specific order.

[0076] In this specification, specific operations performed by the base station device 10 may, in some cases, be performed by its upper node. In a network consisting of one or more network nodes having a base station device 10, it is clear that various operations performed for communication with the terminal 20 may be performed by the base station device 10 and / or other network nodes other than the base station device 10 (for example, an MME or S-GW, but not limited to these). Although the above example illustrates a case where there is one other network node other than the base station device 10, there may also be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0077] Each aspect / embodiment described herein may be used individually, in combination, or switched between as needed during execution.

[0078] Terminal 20 may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or several other appropriate terms.

[0079] The base station device 10 may also be referred to by those skilled in the art as NB (NodeB), eNB (evolved NodeB), gNB, base station, or some other appropriate term.

[0080] As used herein, the terms “determining” and “determining” may encompass a wide variety of actions. “Determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up (e.g., looking up in a table, database or other data structure), and ascertaining. “Determining” may also include, for example, receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and accessing (e.g., accessing data in memory). Furthermore, "judgment" and "decision" can include considering something as having "judgmented" or "decided" after resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" and "decision" can include considering something as having "judgmented" or "decided" on some action.

[0081] As used herein, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0082] To the extent that “include,” “including,” and their variations are used herein or in the claims, these terms are intended to be inclusive, just as the term “comprising.” Furthermore, the term “or” as used herein or in the claims is not intended to be exclusive OR.

[0083] Throughout this disclosure, if articles are added by translation, such as a, an, and the in English, these articles may include multiple things unless it is clearly indicated otherwise by the context.

[0084] Although the present invention has been described in detail above, it will be clear to those skilled in the art that the present invention is not limited to the embodiments described herein. The present invention can be implemented in modified and altered forms without departing from the spirit and scope of the invention as defined by the claims. Therefore, the description herein is for illustrative purposes only and is not intended to be restrictive in any way to the present invention.

[0085] Furthermore, scheduling of other terminals is an example of controlling the communications of other terminals, and information regarding the ability to operate as a scheduling terminal, as well as information requesting to operate as a scheduling terminal, are examples of information related to controlling the communications of other terminals. In addition, preferred configurations for uplink / downlink (UL / DL) and candidates for new uplink / downlink (UL / DL) configurations are examples of information related to setting preferential treatment. [Explanation of Symbols]

[0086] 10 Base station equipment 110 Transmitter 120 Receiver 130 Setting section 140 Control Unit 20 devices 210 Transmitter 220 Receiver 230 Setting section 240 Control Unit 1001 Processor 1002 Storage device 1003 Auxiliary storage device 1004 Communication device 1005 Input device 1006 Output device

Claims

1. A transceiver unit that receives setting information related to the control of communication of other terminals from the base station equipment, A control unit that performs control to enable the use of a dedicated frequency band or resource in addition to a common frequency band or resource based on the aforementioned setting information, It has, Before receiving the setting information, the transmitting / receiving unit receives a new setting candidate for uplink transmission or downlink transmission, transmits a response to the setting candidate to the base station device, and further transmits a request to the base station device to be set as a scheduling terminal that controls the communication of other terminals, and receives a response to the request from the base station device. Terminal.

2. The steps include receiving configuration information related to controlling the communication of other terminals from the base station equipment, Based on the aforementioned configuration information, the step of performing control to enable the use of a dedicated frequency band or resource in addition to a common frequency band or resource, Before receiving the aforementioned configuration information, the system receives a new configuration candidate for uplink transmission or downlink transmission, transmits a response to the configuration candidate to the base station device, and further transmits a request to the base station device to be configured as a scheduling terminal that controls the communication of other terminals, and receives a response to the request from the base station device. A communication method performed by a terminal having [a certain feature / ability].

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