Terminal, base station, and communication method

Abstract

A terminal is provided with: a reception unit that receives a synchronization signal from a base station in a non-contiguous frequency resource comprising a plurality of contiguous frequency resources; and a control unit that determines, on the basis of the synchronization signal, consecutive frequency resources including broadcast information from among the plurality of consecutive frequency resources.

Description

TECHNICAL FIELD

[0001] The present application relates to a terminal, a base station, and a communication method in a wireless communication system. BACKGROUND

[0002] In the 3GPP (registered trademark) (3rd Generation Partnership Project: 3rd Generation Partnership Project), in order to achieve further large capacity of system capacity, further high speed of data transmission speed, further low delay in a wireless interval, and the like, research on a wireless communication scheme (hereinafter, the wireless communication scheme will be referred to as "NR") called 5G or NR (New Radio) is being conducted. In 5G, in order to meet the requirement conditions of achieving a throughput of 10 Gbps or more and making the delay in the wireless interval 1 ms or less, research on various wireless technologies and network architectures is being conducted (for example, Non-Patent Literature 1 and Non-Patent Literature 2).

[0003] In NR, the LTE is supporting a carrier aggregation (CA) function of using a wideband region for securing data resources. In the carrier aggregation function, by bundling a plurality of component carriers (CC), it is possible to secure a wideband region of data resources.

[0004] PRIOR ART DOCUMENTS

[0005] NON-PATENT LITERATURE

[0006] Non-Patent Literature 1: 3GPP TS 38.300 V17.5.0 (2023-06)

[0007] Non-Patent Literature 2: 3GPP TS 38.401 V17.5.0 (2023-06)

[0008] Non-Patent Literature 3: 3GPP TS 38.331 V17.6.0 (2023-09) SUMMARY

[0009] PROBLEMS TO BE SOLVED BY THE INVENTION

[0010] In the carrier aggregation function, in order to more flexibly and efficiently perform resource allocation, a method for efficiently configuring non-continuous frequency resources by aggregating continuous frequency resources is being researched. However, there is no provision of an action associated with the transmission of broadcast information notified to the terminal when non-continuous frequency resources are configured by aggregating continuous frequency resources.

[0011] The present application has been achieved in view of the above-described aspects, and aims to transmit broadcast information to a terminal when non-continuous frequency resources are used in a frequency domain in wireless communication.

[0012] Means for solving the problem

[0013] According to the disclosed technology, a terminal is provided with a reception section that receives a synchronization signal from a base station in non-continuous frequency resources composed of a plurality of continuous frequency resources, and a control section that determines a continuous frequency resource containing broadcast information from the plurality of continuous frequency resources based on the synchronization signal.

[0014] Effects of the invention

[0015] According to the disclosed technology, broadcast information can be transmitted to a terminal when non-continuous frequency resources are used in a frequency domain in wireless communication. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a diagram showing a structure example of a wireless communication system in an embodiment of the present application.

[0017] Figure 2 is a diagram showing a structure example (1) of a virtual CC in an embodiment of the present application.

[0018] Figure 3 is a diagram showing a structure example (2) of a virtual CC in an embodiment of the present application.

[0019] Figure 4 is a diagram showing a first example of broadcast information in an embodiment of the present application.

[0020] Figure 5 is a diagram showing a second example of broadcast information in an embodiment of the present application.

[0021] Figure 6 is a diagram showing an example of a functional structure of a base station 10 in an embodiment of the present application.

[0022] Figure 7 is a diagram showing an example of a functional structure of a terminal 20 in an embodiment of the present application.

[0023] Figure 8 is a diagram showing an example of a hardware structure of the base station 10 or the terminal 20 in an embodiment of the present application.

[0024] Figure 9 is a diagram showing an example of a structure of a vehicle 2001 in an embodiment of the present application. DETAILED DESCRIPTION

[0025] Hereinafter, an embodiment of the present application will be described with reference to the drawings. In addition, the embodiment described below is only an example, and the embodiment to which the present application is applied is not limited to the embodiment below.

[0026] In the operation of the wireless communication system of the embodiment of the present application, a prior art is appropriately used. Among them, the prior art is, for example, the existing LTE, but is not limited to the existing LTE. In addition, unless otherwise specified, the term "LTE" used in this specification has a broad meaning including LTE-Advanced and the mode after LTE-Advanced (e.g., NR).

[0027] In addition, in the embodiment of the present application described below, the terms SS (Synchronization Signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel) and the like used in the existing LTE are used. These are for the convenience of description, and the same signals, functions and the like can be called by other names. In addition, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH and the like. However, even for the signals for NR, it is not necessarily explicitly described as "NR-".

[0028] In addition, in the embodiment of the present application, the duplex mode can be a TDD (Time Division Duplex) mode, can be an FDD (Frequency Division Duplex) mode, or can be a mode other than this (for example, a flexible duplex (Flexible Duplex) and the like).

[0029] Further, in the embodiment of the present application, the "Configure" wireless parameters and the like can be pre-configured with predetermined values, or can be configured with wireless parameters notified from the base station 10 or the terminal 20.

[0030] Figure 1 is a diagram showing a configuration example of a wireless communication system in the embodiment of the present application. As shown in Figure 1 the wireless communication system in the embodiment of the present application includes the base station 10 and the terminal 20. In Figure 1 each of the base station 10 and the terminal 20 is shown one, but this is only an example, and there can be a plurality of each.

[0031] The base station 10 is a communication device that provides one or more cells and performs wireless communication with the terminal 20. The physical resources of the wireless signal are defined in the time domain and the frequency domain, the time domain can be defined by the number of OFDM (Orthogonal Frequency Division Multiplexing) symbols, and the frequency domain can be defined by the number of subcarriers or the number of resource blocks. The base station 10 transmits a synchronization signal and system information to the terminal 20. The synchronization signal is, for example, NR-PSS and NR-SSS. The system information is transmitted by, for example, NR-PBCH, and is also called broadcast information. The synchronization signal and the system information can also be referred to as SSB (SS / PBCH block). As shown in Figure 1 the base station 10 transmits a control signal or data to the terminal 20 through DL (Downlink), and receives a control signal or data from the terminal 20 through UL (Uplink). Both the base station 10 and the terminal 20 are capable of beamforming for transmitting and receiving signals. Further, both the base station 10 and the terminal 20 are capable of applying MIMO (Multiple Input Multiple Output) based communication to DL or UL. Further, both the base station 10 and the terminal 20 can also communicate via a secondary cell (SCell) and a primary cell (PCell) based on CA (Carrier Aggregation). Also, the terminal 20 can communicate via a primary cell of the base station 10 and a primary secondary cell group cell (PSCell) of another base station 10 based on DC (Dual Connectivity).

[0032] The terminal 20 is a smartphone, a mobile phone, a tablet, a wearable terminal, a communication module for M2M (Machine-to-Machine), or the like, which is a communication device having a wireless communication function. As shown in FIG. 1, the terminal 20 receives a control signal or data from the base station 10 through a DL and transmits a control signal or data to the base station 10 through a UL, thereby utilizing various communication services provided by a wireless communication system. In addition, the terminal 20 receives various reference signals transmitted from the base station 10 and performs measurement of a propagation path quality based on a reception result of the reference signals. Figure 1

[0033] In addition, in LTE and NR, a carrier aggregation function of using a wideband domain for securing data resources is supported. In the carrier aggregation function, by bundling a plurality of component carriers, it is possible to secure data resources of a wideband domain. For example, it is possible to use a width of 100 MHz by bundling a plurality of 20 MHz bandwidths.

[0034] In the conventional carrier aggregation function, it is necessary to schedule data resources for each of the plurality of component carriers that are bundled, and there is a problem that the overhead of resource allocation is large.

[0035] Here, a method of performing resource allocation in a scheduling unit different from a component carrier and a terminal that performs resource allocation in a scheduling unit different from a component carrier are described.

[0036] A framework of performing scheduling or aggregation in a granularity different from a component carrier is defined as frequency fragmentation. In addition, the so-called "component carrier" can refer to a set of frequency resources corresponding to the conventional scheduling unit (i.e., an actual CC described later), and a set of frequency resources in frequency fragmentation (i.e., a virtual CC described later) can also be referred to as a "component carrier".

[0037] In addition, in carrier aggregation, performing aggregation in a granularity different from a component carrier is defined as non-contiguous carrier aggregation.

[0038] In addition, in carrier aggregation (non-contiguous carrier aggregation), scheduling in a granularity different from a component carrier is defined as non-contiguous scheduling.

[0039] The granularity different from a component carrier described above can refer to a unit of a virtual CC, a unit of a BWP (Bandwidth Part), or a unit of a PRB (Physical Resource Block) or a set of PRBs. The virtual CC is a set of carriers that bundles all or a part of frequency resources included in each of a plurality of component carriers. For example, it is also possible to assume that a virtual CC is composed of a plurality of BWPs. ​

[0040] Figure 2 is a first diagram illustrating an example of a structure of a virtual CC according to an embodiment of the present application. Figure 2 The virtual CC #i illustrated is a carrier set obtained by bundling BWP #a and BWP #b included in each of a plurality of component carriers (CC #0 and CC #1).

[0041] Further, it is also conceivable that a virtual CC is constituted of a plurality of PRBs or PRB sets.

[0042] Figure 3 is a second diagram illustrating an example of a structure of a virtual CC according to an embodiment of the present application. Figure 3 The virtual CC #i illustrated is a carrier set obtained by bundling a plurality of PRBs included in each of a plurality of component carriers (CC #0 and CC #1). Further, the plurality of PRBs or PRB sets can be included in one or a plurality of BWPs.

[0043] Hereinafter, a CC before bundling is referred to as an actual CC, and a CC after bundling is referred to as a virtual CC or a nominal CC. Note that the names are not limited to these. Further, the actual CC can be not defined and set as a CC as long as it is a unit of a certain frequency resource. The virtual CC can be defined and set as a CC.

[0044] Further, the virtual CC can be used in channel mapping, scheduling, retransmission control (HARQ, Hybrid Automatic Repeat request), configuration, and the like, as with the conventional single CC.

[0045] Further, the actual CC can be replaced with a continuous frequency resource, and the virtual CC can be replaced with a non-continuous frequency resource.

[0046] The terminal 20 can also transmit terminal capability information indicating a structure of a virtual CC to the base station 10. The terminal capability information indicating the structure of the virtual CC can be, for example, information indicating that a virtual CC is constituted of a plurality of BWPs, or information indicating that a virtual CC is constituted of a plurality of PRBs.

[0047] Further, the terminal capability information indicating the structure of the virtual CC can be information indicating that a virtual CC constituted of a plurality of BWPs and a virtual CC constituted of a plurality of PRBs are supported.

[0048] The terminal 20 can also transmit terminal capability information indicating the structure of the virtual CC to the base station 10. The terminal capability information indicating the structure of the virtual CC can be, for example, information indicating that the virtual CC is composed of a plurality of BWPs or information indicating that the virtual CC is composed of a plurality of PRBs.

[0049] Further, the terminal capability information indicating the structure of the virtual CC can also be information indicating that both the virtual CC composed of a plurality of BWPs and the virtual CC composed of a plurality of PRBs are supported.

[0050] Further, the terminal 20 can also assume that the index for identifying each virtual CC is set by the base station 10 through RRC. Further, the terminal 20 can also assume that the index for identifying each virtual CC is the minimum value (for example, i = 0 in Figure 2 or Figure 3 ) or the maximum value (for example, i = 1 in Figure 2 or Figure 3 ) of the indices of the component carriers.

[0051] The terminal 20 can assume that the scheduling unit in the non-continuous scheduling is notified by (i) the virtual CC index, (ii) the index of the plurality of component carriers + the index of the plurality of BWPs, (iii) the index of the plurality of component carriers + the index of the plurality of PRBs or PRB sets, (iv) the index of the plurality of component carriers + the index of the plurality of BWPs + the index of the plurality of PRBs or PRB sets, and the like.

[0052] Further, the terminal 20 can also assume that the resource unit of the carrier aggregation is the virtual CC, the BWP, the PRB, or the PRB set.

[0053] According to the above-described actions, it is possible to realize resource allocation in the scheduling unit of a granularity different from that of the component carrier.

[0054] (Embodiment)

[0055] In the present embodiment, a method of transmitting broadcast information at the time of using non-continuous frequency resources in the frequency domain in wireless communication is described. Here, the broadcast information is the MIB (Master Information Block), the SIB1 (System Information Block 1), and the SIBX (System Information Block X, X is an integer of 2 or more) (see Non-Patent Literature 3). Further, the MIB contains information for receiving the SIB1 and the like. The SIB1 contains information for connection with a cell and information for receiving the SIBX and the like. The SIBX contains system information and the like. Further, in the present embodiment, the expression "MIB, SIB1, and SIBX" can be replaced with "at least one of MIB, SIB1, and SIBX".

[0056] In the present embodiment, in a case where a virtual CC is constituted by one or more actual CCs, the actions related to the MIB, SIB1, and SIBX are performed in association with the actual CC or the virtual CC. The base station 10 transmits the MIB, SIB1, and SIBX set by the actions to the terminal 20. The terminal 20 receives the MIB, SIB1, and SIBX from the base station 10.

[0057] (Method A)

[0058] In the method A, the MIB, SIB1, and SIBX are transmitted in the virtual CC, and can also be transmitted in any actual CC.

[0059] (Method Al)

[0060] The MIB, SIB1, and SIBX are decided to be transmitted in which actual CC based on the notification in the synchronization signal (Synchronization Signal, SS).

[0061] (Method B)

[0062] In the method B, the MIB, SIB1, and SIBX are transmitted in a specific actual CC.

[0063] (Method Bl)

[0064] The MIB, SIB1, and SIBX are transmitted in the same actual CC as the synchronization signal.

[0065] (Method B2)

[0066] The MIB, SIB1, and SIBX are transmitted in the actual CC corresponding to the synchronization signal. For example, the association (correspondence) of the resources in the time domain, frequency domain, and code domain of the synchronization signal and the actual CC of the MIB, SIB1, and SIBX is defined, and based on the definition, the actual CC in which the MIB, SIB1, and SIBX are transmitted is decided.

[0067] (Method B3)

[0068] In a case where a plurality of actual CCs are grouped, the MIB, SIB1, and SIBX are transmitted in the actual CCs included in the same group as the synchronization signal.

[0069] (Method that can be commonly applied in the method A and the method B)

[0070] Hereinafter, methods AB1 to AB4 that can be commonly applied in the method A and the method B will be described.

[0071] (Method AB1)

[0072] A specific time gap T (T is a time of a value of 0 or more) can be provided between the synchronization signal and the MIB, the SIB1, and the SIBX.

[0073] Figure 4 FIG. 1 is a diagram illustrating a first example of broadcast information according to an embodiment of the present application. Figure 4 In FIG. 1, a virtual CC is composed of actual CCs #0, #1, and #2. Here, a synchronization signal (SS) is transmitted in the actual CC #0, and an MIB is transmitted in the actual CC #2 decided based on the synchronization signal. Further, a time gap (T) is provided between the synchronization signal and the MIB.

[0074] (Method AB2)

[0075] The information included in the MIB, the SIB1, and the SIBX can be information common within the virtual CC, or can be commonly applied within the virtual CC.

[0076] (Method AB3)

[0077] The information included in the MIB, the SIB1, and the SIBX can be information for each actual CC, or can be applied to each actual CC. Alternatively, the information included in the MIB, the SIB1, and the SIBX can be information related to only a specific actual CC, or can be information notifying which actual CC it is related to.

[0078] (Method AB4)

[0079] The MIB, the SIB1, and the SIBX can be transmitted only once (1TX) within the virtual CC within a specific time interval. That is, the transmission of the MIB, the SIB1, and the SIBX can not be performed for each actual CC.

[0080] The MIB, the SIB1, and the SIBX can be transmitted within a single actual CC, or can be transmitted across (included in) a plurality of actual CCs.

[0081] In the case where the MIB, the SIB1, and the SIBX are transmitted across a plurality of actual CCs, it can be that a specific actual CC (for example, an actual CC having a minimum value of an index) among the actual CCs is an object of decision and restriction in any of the methods A1, B1, B2, and B3, or it can be that all of the actual CCs among the actual CCs are objects of decision and restriction in any of the methods A1, B1, B2, and B3.

[0082] (Method C)

[0083] In the method C, the MIB, the SIB1, and the SIBX are transmitted in all of the actual CCs. The transmission can also be different among the actual CCs.

[0084] (Method C1)

[0085] The resources of the MIB, the SIB1, and the SIBX can be notified per actual CC in the synchronization signal.

[0086] (Method C2)

[0087] The resources of the MIB, the SIB1, and the SIBX in the actual CC corresponding to the synchronization signal can also be notified in the synchronization signal, and the resources of the MIB, the SIB1, and the SIBX in the actual CC other than the actual CC corresponding to the synchronization signal can be notified in the MIB, the SIB1, and the SIBX.

[0088] (Method applicable commonly in Method C1 and Method C2)

[0089] The information included in the MIB, the SIB1, and the SIBX in each actual CC can be applied within each actual CC.

[0090] In the transmission (TX) of the MIB, the SIB1, and the SIBX in each actual CC, the same setting can be performed between the actual CCs. Here, the setting can be, for example, a setting related to a time period, a time resource, a frequency resource, a sequence, a numerology, and the like. Further, the time period and the time resource can also be set in units of slots, subframes, and the like.

[0091] The MIB, the SIB1, and the SIBX can be transmitted within a single actual CC, or can be transmitted across (included in) a plurality of actual CCs.

[0092] In the case of across a plurality of actual CCs, it can be that a specific actual CC (for example, an actual CC with the smallest value of the index) among the actual CCs is the object of the determination and the constraint in any of the methods of A1, B1, B2, and B3, or it can also be that all of the actual CCs among the actual CCs are the object of the determination and the constraint in any of the methods of A1, B1, B2, and B3.

[0093] A specific time gap T (T is a time with a value of 0 or more) can be provided between the synchronization signal and the MIB, the SIB1, and the SIBX. Further, in the case of C2, a specific time gap T2 (T2 is a time with a value of 0 or more) can also be provided between the MIB, the SIB1, and the SIBX of the same actual CC as the synchronization signal and the MIB, the SIB1, and the SIBX of the other actual CC.

[0094] Figure 5 Fig. 2 is a diagram illustrating a second example of broadcast information according to an embodiment of the present application. Figure 5In the present embodiment, the virtual CC is composed of actual CCs #0, #1, and #2. Here, a synchronization signal (SS) and an MIB are transmitted in the actual CC #0, resources of the MIB in the actual CCs #1 and #2 other than the actual CC #0 are notified in the MIB, and the MIB is transmitted in the actual CCs #1 and #2. Further, a time gap (T) is provided between the synchronization signal and the MIB in the actual CC #0. Also, a time gap (T2) is provided between the MIB in the actual CC #0 and the MIBs in the actual CCs #1 and #2.

[0095] (First Modification Example)

[0096] A first modification example with respect to the above-described embodiment will be described. In the first modification example, different methods (the methods A to C described in the embodiment) can be applied to each of the MIB, the SIB1, and the SIBX. For example, the method B1 can be applied to the MIB, and the method A can be applied to the SIB1 and the SIBX.

[0097] In the method A and the method B, "synchronization signal" can be replaced with "MIB" or "SIB1". For example, in the case where the method B1 is applied to the MIB, and the method A is applied to the SIB1 and the SIBX, with respect to the SIB1 and the SIBX, it can be determined in which actual CC to transmit, on the basis of the notification in the "MIB" (not "synchronization signal").

[0098] (Second Modification Example)

[0099] A second modification example with respect to the above-described embodiment will be described. In the second modification example, actual CCs included in a certain virtual CC can be grouped, and the processing and the method applied to the actual CCs within a group and the processing and the method applied to the actual CCs between groups can be different. Here, the processing and the method are, for example, the processing and the method described in the method A, the method B, and the method C.

[0100] For example, it can be that the virtual CC is composed of actual CCs #0, #1, #2, and #3, the actual CCs #0 and #1 are grouped into a group #0, and the actual CCs #2 and #3 are grouped into a group #1. Here, with respect to transmission (broadcast information and a synchronization signal, or the like) of data within a group across the actual CCs #0 and #1 within the group #0 (that is, transmission of data of actual CCs including the same group), for example, the processing and the method described in the method A or the method B can be applied. Further, with respect to transmission (broadcast information and a synchronization signal, or the like) of data between groups across the actual CC #1 of the group #0 and the actual CC #2 of the group #1 (that is, transmission of data of actual CCs including different groups), for example, the processing and the method described in the method C can be applied.

[0101] The grouping can be performed based on a setting, can be determined based on numerology (for example, actual CCs having the same SCS are regarded as the same group, and the like), and can be determined based on frequency resources (for example, actual CCs having the same frequency band or frequency range (FR) are regarded as the same group, and the like).

[0102] (3rd Modification)

[0103] A 3rd modification with respect to the above-described embodiment will be described. In the 3rd modification, different methods can be applied to PDCCH and PDSCH related to SIB1 and SIBX. For example, method B1 can be applied to PDCCH, and method A can be applied to PDSCH (and PDSCH can span multiple actuals).

[0104] According to the above-described embodiment, in wireless communication, it is possible to transmit broadcast information when non-contiguous frequency resources are used in the frequency domain.

[0105] (Apparatus Structure)

[0106] Next, a functional configuration example of the base station 10 and the terminal 20 that execute the above-described processing and operation will be described. The base station 10 and the terminal 20 include functions to implement the above-described embodiment. However, the base station 10 and the terminal 20 can each have only a part of the functions in the embodiment.

[0107] <Base Station 10>

[0108] Figure 6 is a diagram illustrating an example of a functional configuration of the base station 10 in the embodiment. As illustrated in Figure 6 , the base station 10 includes a transmission section 110, a reception section 120, a setting section 130, and a control section 140. Figure 6 The functional configuration illustrated in the drawing is merely an example. As long as the operation related to the embodiment can be executed, the functional division and the names of the functional sections can be arbitrary. Furthermore, the transmission section 110 and the reception section 120 can be collectively referred to as a communication section.

[0109] The transmission section 110 includes a function of generating a signal to be transmitted to the terminal 20 side and transmitting the signal in a wireless manner. Furthermore, the transmission section 110 transmits an inter-network node message to another network node. The reception section 120 includes a function of receiving various signals transmitted from the terminal 20 and acquiring, for example, higher layer information from the received signal. Furthermore, the transmission section 110 has a function of transmitting an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL control signal, and the like to the terminal 20. Furthermore, the reception section 120 receives an inter-network node message from another network node.

[0110] The setting section 130 stores setting information set in advance and various setting information transmitted to the terminal 20. The setting information is, for example, broadcast information regarding non-continuous frequency resources and the like.

[0111] As explained in the embodiment, the control section 140 performs control regarding non-continuous frequency resources. The function section in the control section 140 regarding signal transmission can be included in the transmission section 110, and the function section in the control section 140 regarding signal reception can be included in the reception section 120.

[0112] <terminal 20>

[0113] Figure 7 is a diagram showing an example of a functional structure of the terminal 20 in the embodiment. As shown in Figure 7 , the terminal 20 has a transmission section 210, a reception section 220, a setting section 230, and a control section 240. Figure 7 The functional structure shown in the drawing is merely an example. The functional division and the names of the function sections can be arbitrary as long as the actions involved in the embodiment of the present application can be performed. Further, the transmission section 210 and the reception section 220 can be collectively referred to as a communication section.

[0114] The transmission section 210 generates a transmission signal from transmission data and transmits the transmission signal in a wireless manner. The reception section 220 receives various signals in a wireless manner and acquires higher layer signals from the received physical layer signals. Further, the reception section 220 has a function of receiving an NR-PSS, an NR-SSS, an NR-PBCH, a DL / UL / SL control signal, and the like transmitted from the base station 10. Also, for example, as D2D communication, the transmission section 210 transmits a PSCCH (Physical Sidelink Control Channel), a PSSCH (Physical Sidelink Shared Channel), a PSDCH (Physical Sidelink Discovery Channel), a PSBCH (Physical Sidelink Broadcast Channel), and the like to other terminals 20, and the reception section 220 receives a PSCCH, a PSSCH, a PSDCH, or a PSBCH, and the like from other terminals 20.

[0115] The setting section 230 stores various setting information received by the reception section 220 from the base station 10. Further, the setting section 230 also stores setting information set in advance. The setting information is, for example, broadcast information regarding non-continuous frequency resources and the like.

[0116] As explained in the embodiments, the control section 240 performs control related to discontinuous frequency resources. The function section in the control section 240 related to signal transmission can also be included in the transmitting section 210, and the function section in the control section 240 related to signal reception can also be included in the receiving section 220.

[0117] (Hardware structure)

[0118] The block diagrams used in the explanation of the above-described embodiments Figure 6 and Figure 7 illustrate blocks in units of functions. These function blocks (structural sections) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each function block is not particularly limited. That is, each function block can be realized using one device that is physically or logically combined, or two or more devices that are physically or logically separated can be connected directly or indirectly (for example, using wires, wireless, or the like) and realized using the plurality of devices. The function block can also be realized in combination with software in the above-described one device or the above-described plurality of devices.

[0119] The functions include judgment, decision, determination, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, election, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, assigning, and the like, but are not limited to these. For example, a function block (structural section) that functions to transmit is called a transmitting unit or a transmitter. In any case, as described above, the method of realization is not particularly limited.

[0120] For example, the base station 10, the terminal 20, and the like in one embodiment of the present disclosure can also function as a computer that performs processing of the wireless communication method of the present disclosure. Figure 8 is a diagram illustrating an example of the hardware structure of the base station 10 and the terminal 20 of one embodiment of the present disclosure. The above-described base station 10 and terminal 20 can also be configured as a computer device that physically includes the processor 1001, the storage 1002, the auxiliary storage 1003, the communication device 1004, the input device 1005, the output device 1006, the bus 1007, and the like.

[0121] In addition, in the following description, the expression "device" can be replaced with "circuit," "apparatus," "unit," or the like. The hardware structures of the base station 10 and the terminal 20 can be configured to include one or more of the illustrated devices, or can be configured not to include a part of the devices.

[0122] Each function in the base station 10 and the terminal 20 is realized by reading predetermined software (program) into the hardware such as the processor 1001, the storage 1002, and causing the processor 1001 to perform arithmetic operation, and controlling at least one of communication of the communication device 1004 or reading and writing of data in the storage 1002 and the auxiliary storage 1003.

[0123] The processor 1001 controls the entire computer by causing an operating system to operate, for example. The processor 1001 can also be configured by a central processing device (CPU: Central Processing Unit) including an interface with a peripheral device, a control device, an arithmetic device, a register, and the like. The above-described control section 140, the control section 240, and the like can also be realized by the processor 1001, for example.

[0124] Further, the processor 1001 reads a program (program code), a software module, or data, and the like from at least one of the auxiliary storage 1003 and the communication device 1004 to the storage 1002, and performs various processes based on the same. As the program, a program that causes a computer to perform at least a part of the operations described in the above-described embodiments is used. For example, Figure 6 The control section 140 of the illustrated base station 10 can also be realized by a control program stored in the storage 1002 and operating in the processor 1001. Also, for example, Figure 7 The control section 240 of the illustrated terminal 20 can also be realized by a control program stored in the storage 1002 and operating in the processor 1001. Although the above-described various processes are described as being executed by one processor 1001, the above-described various processes can also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be realized by one or more chips. In addition, the program can be transmitted from a network via a telecommunication line.

[0125] The storage 1002 is a computer-readable recording medium, and can be constituted by at least one of, for example, a ROM (Read Only Memory), an EPROM (Erasable Programmable ROM), an EEPROM (Electrically Erasable Programmable ROM), a RAM (Random Access Memory), and the like. The storage 1002 can also be referred to as a register, a cache, a main memory (main storage), and the like. The storage 1002 is capable of holding a program (program code), a software module, and the like that can be executed in order to implement a communication method according to an embodiment of the present disclosure.

[0126] The auxiliary storage 1003 is a computer-readable recording medium, and can be constituted by at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (for example, a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (for example, a card, a stick, a Key drive), a Floppy (registered trademark) disk, a magnetic stripe, and the like. The above-described storage medium can be, for example, a database, a server, and other appropriate medium that includes at least one of the storage 1002 and the auxiliary storage 1003.

[0127] The communication device 1004 is hardware (a transceiver device) for performing communication between computers via at least one of a wired network and a wireless network, and can also be referred to as a network device, a network controller, a network card, a communication module, and the like. The communication device 1004 can also be constituted to include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, and the like, in order to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, a transceiving antenna, an amplification section, a transceiving section, a transmission path interface, and the like can also be implemented by the communication device 1004. The transceiving section can also be implemented physically or logically by a transmission section and a reception section.

[0128] The input device 1005 is an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, and the like) that receives an input from the outside. The output device 1006 is an output device (for example, a display, a speaker, an LED lamp, and the like) that implements an output to the outside. In addition, the input device 1005 and the output device 1006 can also be integrally constituted (for example, a touch panel).

[0129] Furthermore, the processor 1001 and storage device 1002, among other devices, are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses used between the devices.

[0130] Furthermore, the base station 10 and the terminal 20 can 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 a FPGA (Field Programmable Gate Array), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0131] Figure 9 An example of the structure of vehicle 2001 is shown. For example... Figure 9 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gearshift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. The various forms / implementations described in this disclosure can also be applied to communication devices mounted on the vehicle 2001, for example, to the communication module 2013.

[0132] The drive unit 2002 may be composed, for example, an engine, a motor, or a hybrid power system of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a steering wheel), configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel by the user.

[0133] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2029 of the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an ECU (Electronic Control Unit).

[0134] As signals from various sensors 2021 to 2029, there are a current signal from a current sensor 2021 that senses a current of a motor, a rotational speed signal of a front wheel or a rear wheel acquired by a rotational speed sensor 2022, an air pressure signal of the front wheel or the rear wheel acquired by an air pressure sensor 2023, a vehicle speed signal acquired by a vehicle speed sensor 2024, an acceleration signal acquired by an acceleration sensor 2025, a depression amount signal of an accelerator pedal acquired by an accelerator pedal sensor 2029, a depression amount signal of a brake pedal acquired by a brake pedal sensor 2026, an operation signal of a shift lever acquired by a shift lever sensor 2027, a detection signal for detecting an obstacle, a vehicle, a pedestrian, or the like acquired by an object detection sensor 2028, and the like.

[0135] The information service section 2012 is constituted by various devices for providing (outputting) various information such as driving information, traffic information, entertainment information, and the like, and one or more ECUs that control these devices, such as a car navigation system, an audio system, a speaker, a television, a radio, and the like. The information service section 2012 provides various multimedia information and multimedia services to an occupant of the vehicle 2001 using information acquired from an external device via the communication module 2013 or the like. The information service section 2012 can include an input device (for example, a keyboard, a mouse, a microphone, a switch, a button, a sensor, a touch panel, or the like) that receives an input from the outside, and can include an output device (for example, a display, a speaker, an LED lamp, a touch panel, or the like) that performs an output to the outside.

[0136] The driving assistance system section 2030 is constituted by various devices for providing a function of preventing an accident from occurring or reducing a driving load on a driver, such as a millimeter wave radar, a LiDAR (Light Detection and Ranging), a camera, a positioner for positioning (for example, a GNSS or the like), map information (for example, a high-definition (HD) map, an autonomous vehicle (AV) map, or the like), a gyro system (for example, an IMU (Inertial Measurement Unit), an INS (Inertial Navigation System), or the like), an AI (Artificial Intelligence) chip, an AI processor, and one or more ECUs that control these devices. In addition, the driving assistance system section 2030 transmits and receives various information via the communication module 2013, and realizes a driving assistance function or an autonomous driving function.

[0137] The communication module 2013 can communicate with the microprocessor 2031 and the constituent elements of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data between the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the microprocessor 2031, and the memory (ROM, RAM) 2032 within the electronic control section 2010, and the sensors 2021 to 2029 possessed by the vehicle 2001 via the communication port 2033.

[0138] The communication module 2013 can be controlled by the microprocessor 2031 of the electronic control section 2010, and is a communication device that can communicate with external devices. For example, various information is transmitted and received between the external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control section 2010. The external devices can be, for example, base stations, mobile stations, and the like.

[0139] The communication module 2013 can also transmit at least one of the signals input to the electronic control section 2010 from the various sensors 2021 to 2028 described above, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service section 2012 to the external devices via wireless communication. The electronic control section 2010, the various sensors 2021 to 2028, the information service section 2012, and the like can also be referred to as input sections that accept input. For example, the PUSCH transmitted by the communication module 2013 can contain information based on the above input.

[0140] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, and the like) transmitted from the external devices, and displays the information on the information service section 2012 possessed by the vehicle 2001. The information service section 2012 can also be referred to as an output section that outputs information (for example, outputs information to a display, a speaker, and the like based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013) to a device. In addition, the communication module 2013 stores the various information received from the external devices in the memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive section 2002, the steering section 2003, the accelerator pedal 2004, the brake pedal 2005, the shift lever 2006, the front wheels 2007, the rear wheels 2008, the axles 2009, the sensors 2021 to 2029, and the like possessed by the vehicle 2001 based on the information stored in the memory 2032.

[0141] (Summary of Embodiments)

[0142] As described above, according to the embodiment of the present application, there is provided a terminal having: a reception section that receives a synchronization signal from a base station in a non-continuous frequency resource constituted by a plurality of continuous frequency resources; and a control section that decides a continuous frequency resource containing broadcast information from among the plurality of continuous frequency resources based on the synchronization signal.

[0143] With the above-described structure, in wireless communication, when a non-continuous frequency resource is used in the frequency domain, it is possible to transmit broadcast information to a terminal.

[0144] The control section can also be conceived to contain the synchronization signal and the broadcast information in the same continuous frequency resource, or. It can also be conceived that, in a plurality of groups after grouping the plurality of continuous frequency resources, the synchronization signal and the broadcast information are contained in the same group.

[0145] With the above-described structure, in wireless communication, when a non-continuous frequency resource is used in the frequency domain, it is possible to transmit broadcast information to a terminal.

[0146] The broadcast information can also contain information that is commonly applied in the non-continuous frequency resource, and information that is applied in each continuous frequency resource in the non-continuous frequency resource.

[0147] With the above-described structure, in wireless communication, when a non-continuous frequency resource is used in the frequency domain, it is possible to transmit broadcast information to a terminal.

[0148] Further, according to the embodiment of the present application, there is provided a terminal having: a reception section that receives a synchronization signal from a base station in a non-continuous frequency resource constituted by a plurality of continuous frequency resources; and a control section that decides a resource of broadcast information contained in a continuous frequency resource different from a continuous frequency resource containing the synchronization signal based on broadcast information contained in the same continuous frequency resource as the continuous frequency resource containing the synchronization signal.

[0149] With the above-described structure, in wireless communication, when a non-continuous frequency resource is used in the frequency domain, it is possible to transmit broadcast information to a terminal.

[0150] Further, according to the embodiment of the present application, there is provided a base station having: a control section that generates a synchronization signal in a non-continuous frequency resource constituted by a plurality of continuous frequency resources, the synchronization signal containing information for deciding a continuous frequency resource containing broadcast information; and a transmission section that transmits the synchronization signal to a terminal in the non-continuous frequency resource.

[0151] With the above-described structure, in wireless communication, when a non-continuous frequency resource is used in the frequency domain, it is possible to transmit broadcast information to a terminal.

[0152] In addition, according to an embodiment of the present invention, a communication method is provided, which is executed by a terminal and includes the following steps: receiving a synchronization signal from a base station in a non-contiguous frequency resource consisting of a plurality of consecutive frequency resources; and determining a consecutive frequency resource containing broadcast information based on the synchronization signal.

[0153] With the above structure, in wireless communication, when using discontinuous frequency resources in the frequency domain, it is possible to send broadcast information to the terminal.

[0154] (Supplement to the implementation method)

[0155] The embodiments of the present invention have been described above, but the disclosed invention is not limited to such embodiments. Those skilled in the art should understand various modifications, alterations, substitutions, and replacements. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these values ​​are merely examples, and any appropriate values ​​may be used. The distinctions between items in the above description are not essential to the present invention. Items described in two or more items may be combined as needed, and items described in one item may be applied to items described in another item (as long as there is no contradiction). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical components. Multiple functional units may be operated by a single physical component, or a single functional unit may be operated by multiple physical components. Regarding the processing described in the embodiments, the order of processing may be interchanged unless there is a contradiction. For ease of explanation, a functional block diagram is used to illustrate the base station 10 and terminal 20, but such a device may also be implemented by hardware, software, or a combination thereof. The software operating according to the embodiments of the present invention via the processor of the base station 10 and the software operating according to the embodiments of the present invention via the processor of the terminal 20 may also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server and other suitable storage media, respectively.

[0156] Further, the notification of the information is not limited to the forms / embodiments explained in the present disclosure, and can be performed using other methods. For example, the notification of the information can be implemented by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher 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 a combination thereof. Further, the RRC signaling can be referred to as an RRC message, and for example, can be an RRC connection setup message, an RRC connection reconfiguration message, or the like.

[0157] The forms / embodiments explained in the present disclosure can also be applied to at least one of systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-WideBand), Bluetooth (registered trademark), other appropriate systems, and next-generation systems extended therefrom. Further, a plurality of systems (e.g., at least one of LTE and LTE-A and 5G, etc.) can be combined and applied.

[0158] For the processes, timings, flows, and the like of the forms / embodiments described in this specification, the order can be changed without contradiction. For example, for the methods described in this disclosure, the elements of the various steps are prompted using the order of the examples, but are not limited to the specific order prompted.

[0159] In this specification, a specific action by the base station 10 is sometimes also performed by an upper node thereof according to the situation. In a network constituted by one or a plurality of network nodes having the base station 10, it is obvious that various actions performed for communication with the terminal 20 can be performed by at least one of the base station 10 and other network nodes (for example, consider MME or S-GW, or the like, but not limited to these) other than the base station 10. In the above, a case where the other network nodes other than the base station 10 is 1 is exemplified, but the other network nodes can also be a combination of a plurality of other network nodes (for example, MME and S-GW).

[0160] The information or the like described in this disclosure can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It can also be input or output via a plurality of network nodes.

[0161] The information or the like input or output can be saved in a specific location (for example, a memory), and can be managed using a management table. The information or the like input or output can be rewritten, updated, or appended. The information or the like output can also be deleted. The information or the like input can also be transmitted to other devices.

[0162] The determination in this disclosure can be performed by a value (0 or 1) represented by 1 bit, by a Boolean value (true or false), or by comparison of numerical values (for example, comparison with a predetermined value).

[0163] For software, regardless of being called software, firmware, middleware, microcode, hardware description language, or by another name, it should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs (programs), subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and the like.

[0164] In addition, software, commands, and information can also be sent and received via transmission media. For example, when software is sent from a webpage, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of transmission media.

[0165] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description as a whole can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0166] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0167] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0168] Furthermore, the information, parameters, etc., described in this disclosure may be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources may be indicated using indexes.

[0169] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0170] In this disclosure, the terms "base station (BS)," "wireless base station," "base station device," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" are used interchangeably. Sometimes, terms such as macro cell, small cell, femtocell, and picocell are also used to refer to base stations.

[0171] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its coverage area can be divided into several smaller areas, each of which can provide communication services through a base station subsystem (e.g., a small indoor base station RRH: Remote Radio Head). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0172] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control. action.

[0173] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" can be used interchangeably.

[0174] For mobile stations, those skilled in the art sometimes also use the following terms: 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, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0175] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Additionally, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to an object capable of movement, with arbitrary speed. This also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, two-wheeled trailers, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., automobiles, airplanes, etc.), a mobile body moving in an unmanned manner (e.g., drones, autonomous vehicles, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0176] Furthermore, the base station in this disclosure can also be replaced by a user terminal. For example, the communication between the base station and the user terminal can be replaced by communication between multiple terminals 20 (e.g., D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.), and various forms / implementations of this disclosure can also be applied. In this case, the terminal 20 can also be configured to have the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0177] Similarly, the user terminal in this disclosure can be replaced by a base station. In this case, the base station can also be configured to have the functions of the aforementioned user terminal.

[0178] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory), which are considered as actions of "determining" or "determining." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0179] The terms “connected,” “coupled,” or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to “connect” or “couple” to each other.

[0180] The reference signal can be simply called RS (Reference Signal), or, depending on the standard applied, pilot.

[0181] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0182] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements can be taken, or that in any form the first element must precede the second element.

[0183] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0184] When the terms "include," "including," and their variations are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0185] A radio frame can consist of one or more frames in the time domain. In the time domain, one or more frames can be called subframes. A subframe can also consist of one or more time slots in the time domain. A subframe can also be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0186] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: Subcarrier Spacing (SCS), bandwidth, symbol length, cyclic prefix length, Transmission Time Interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0187] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0188] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0189] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can also be referred to by their respective alternative names.

[0190] For example, a subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a time slot or a mini-time slot can also be called a TTI. That is, at least one of a subframe and a TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. In addition, the unit representing TTI may not be called a subframe, but a time slot, mini-time slot, etc.

[0191] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal 20) in units of TTI. However, the definition of TTI is not limited to this.

[0192] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than the TTI.

[0193] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of the schedule can be controlled.

[0194] A TTI with a duration of 1ms is also called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0195] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can be understood as a TTI with a duration of more than 1ms, and a short TTI (e.g., a shortened TTI, etc.) can be understood as a TTI with a duration of less than a long TTI but more than 1ms.

[0196] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined based on the parameter set.

[0197] Furthermore, the temporal domain of an RB can contain one or more symbols, which can be a time slot, a mini-time slot, a subframe, or the length of a TTI. A TTI, a subframe, etc., can each be composed of one or more resource blocks.

[0198] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0199] Furthermore, a resource block can consist of one or more resource elements (REs). For example, one RE can be a radio resource area consisting of one subcarrier and one symbol.

[0200] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can also represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in a certain carrier. Here, common RBs can be determined by indexing RBs based on a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0201] A BWP can include a UL BWP and a DL BWP. One or more BWPs can be set for a UE within a single carrier.

[0202] At least one of the configured BWPs can be active, and the scenario of the UE transmitting or receiving predetermined signals / channels outside of the active BWP is not considered. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0203] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, and the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in many ways.

[0204] In this disclosure, for example, in cases where articles are added through translation, such as in English (a, an, and the), this disclosure also includes cases where the noun following these articles is in a plural form.

[0205] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Additionally, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0206] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not being notified of the predetermined information).

[0207] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0208] Label Explanation

[0209] 10: Base station

[0210] 110: Sending Department

[0211] 120: Receiving Department

[0212] 130: Setting Department

[0213] 140: Control Department

[0214] 20: Terminal

[0215] 210: Sending Department

[0216] 220: Receiving Department

[0217] 230: Setting Department

[0218] 240: Control Department

[0219] 1001: Processor

[0220] 1002: Storage device

[0221] 1003: Auxiliary storage device

[0222] 1004: Communication device

[0223] 1005: Input device

[0224] 1006: Output device

Claims

1. A terminal having: A receiving unit that receives synchronization signals from a base station in a non-contiguous frequency resource consisting of multiple consecutive frequency resources; and The control unit, based on the synchronization signal, determines the consecutive frequency resources containing broadcast information from the plurality of consecutive frequency resources.

2. The terminal according to claim 1, wherein, The control unit assumes that the synchronization signal and the broadcast information are contained in the same continuous frequency resources. Alternatively, it is conceivable that the synchronization signal and the broadcast information are contained in the same group within multiple groups after the multiple consecutive frequency resources are grouped.

3. The terminal according to claim 1, wherein, The broadcast information includes at least one of the information that is commonly applied in the non-contiguous frequency resources and the information that is applied in each contiguous frequency resource in the non-contiguous frequency resources.

4. A terminal having: A receiving unit that receives synchronization signals from a base station in a non-contiguous frequency resource consisting of multiple consecutive frequency resources; and The control unit determines, based on the broadcast information contained in the same continuous frequency resources as the continuous frequency resources containing the synchronization signal, the resources containing the broadcast information in the continuous frequency resources that are different from the continuous frequency resources containing the synchronization signal.

5. A base station, comprising: A control unit generates a synchronization signal among discontinuous frequency resources consisting of multiple consecutive frequency resources. The synchronization signal includes information for determining consecutive frequency resources containing broadcast information. The transmitting unit transmits the synchronization signal to the terminal in the discontinuous frequency resources.

6. A communication method, executed by a terminal, comprising the following steps: In a discontinuous frequency resource consisting of multiple consecutive frequency resources, a synchronization signal is received from the base station; and Based on the synchronization signal, a continuous frequency resource containing broadcast information is determined.

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