Terminal, base station, and wireless communication system

Abstract

This terminal has a first reception unit, a second reception unit, and a control unit. The first reception unit receives, from a base station, a first signal including first information indicating that a first resource, which is at least a part of resources for which a first monitoring opportunity for a second signal is set, may be used for another signal. The second reception unit receives the second signal from the base station. The control unit performs control of adjusting monitoring of the second signal transmitted from the base station in accordance with the first information.

Description

Terminals, base stations, and wireless communication systems

[0001] This invention relates to a terminal, a base station, and a wireless communication system.

[0002] Currently, mobile device traffic (smartphones and feature phones) accounts for the majority of network resources. Furthermore, the amount of traffic used by mobile devices is expected to continue to increase.

[0003] Furthermore, in addition to traffic used by mobile devices, IoT (Internet of Things) services (e.g., traffic systems, smart meters, monitoring systems for devices, etc.) are also being deployed. Therefore, networks are required to support services with diverse requirements. To support such diverse services, for example, the communication standards for fifth-generation mobile communications (5G or NR (New Radio)) (e.g., Non-Patent Documents 1-14) have been formulated with support for many use cases classified as eMBB (Enhanced Mobile Broadband), Massive MTC (Machine Type Communications), and URLLC (Ultra-Reliable and Low Latency Communications) in mind. Furthermore, the communication standards for fifth-generation mobile communications also specify technologies to reduce the power consumption of terminal devices.

[0004] In addition, in 3GPP (3rd Generation Partnership Project (registered trademark)), as a new technology for suppressing the power consumption of terminals, Low power wake up signal and receiver are being studied (Non-Patent Document 15). When realizing Low power wake up signal and receiver, a terminal includes a receiver with low power consumption (low-power receiver) and a receiver for performing data communication (main radio section). Here, when the terminal is not performing data communication (for example, in an idle state), it operates the low-power receiver and controls so as not to operate the main radio section. Then, when the terminal receives a wake-up signal via the low-power receiver, it activates the main radio section.

[0005] In addition, in 3GPP, in the signal of the low-power receiver (hereinafter, described as LP-WUS (Low Power Wake Up Signal)), it is assumed that 11 RBs (Resource Block) are used and 32-bit data is transmitted. Also, it is being studied to associate the opportunity to monitor LP-WUS (LO (LP-WUS occasion)) with the opportunity to monitor paging in the main radio section (PO (Paging occasion)) using an offset value (Non-Patent Document 16). Note that LP-WUS is a signal used, for example, to notify paging to a terminal.

[0006] 3GPP TS 37.324 V18.0.03GPP TS 37.340 V18.3.03GPP TS 38.201 V18.0.03GPP TS 38.202 V18.4.03GPP TS 38.211 V18.4.03GPP TS 38.212 V18.4.03GPP TS 38.213 V18.4.03GPP TS 38.214 V18.4.03GPP TS 38.215 V18.3.03GPP TS 38.300 V18.3.03GPP TS 38.321 V18.3.03GPP TS 38.322 V18.1.03GPP TS 38.323 V18.3.03GPP TS 38.331 V18.3.03GPP TR 38.869 V18.0.0R1-2407507

[0007] Incidentally, the resources occupied by LP-WUS may affect the resource allocation for transmitting other signals (e.g., SSB, CSI-RS, uplink signals). For example, if LO is determined by an offset value from PO, depending on the offset value, LP-WUS and other signals may collide. Also, for example, if a large amount of resources are occupied by LP-WUS, those resources cannot be used effectively when LP-WUS is not being transmitted. On the other hand, if other signals are transmitted using resources occupied by LP-WUS, the terminal receiving LP-WUS may not be able to operate correctly, and for example, the main receiver may not be able to start up.

[0008] Therefore, in networks where control using LP-WUS is possible, a method is needed to avoid collisions between LP-WUS and other signals.

[0009] The disclosed technology, made in view of the above, provides a method for controlling LP-WUS in a way that avoids collisions with other signals.

[0010] In one aspect, the present invention provides a terminal comprising: a first receiving unit that receives a first signal containing first information indicating that a first resource, which is at least some of the resources for which a first monitoring opportunity for a second signal is set, may be used by other signals; a second receiving unit that receives a second signal; and a control unit that performs control to adjust the monitoring of the second signal according to the first information.

[0011] LP-WUS can be controlled to avoid collisions with other signals.

[0012] Figure 1 shows an example of a wireless communication system according to Embodiment 1. Figure 2 shows an example of a functional configuration block diagram of a base station in the wireless communication system according to Embodiment 1. Figure 3 shows an example of a functional configuration block diagram of a terminal in the wireless communication system according to Embodiment 1. Figure 4 shows an example of a sequence of the wireless communication system in Embodiment 1. Figure 5 shows an example of resource arrangement in Embodiment 1. Figure 6 shows an example of resource arrangement in Embodiment 1. Figure 7 shows an example of the processing flow of a base station in Embodiment 1. Figure 8 shows an example of resource arrangement in Embodiment 2. Figure 9 shows an example of the hardware configuration of a base station. Figure 10 shows an example of the hardware configuration of a terminal.

[0013] Hereinafter, this embodiment will be described in detail with reference to the drawings. The problems and embodiments described herein are examples only and do not limit the scope of the rights of this application. In particular, even if the wording of the description is different, if it is technically equivalent, the technology of this application can be applied even with different wording and does not limit the scope of the rights. Furthermore, each embodiment can be appropriately combined as long as the processing content is not contradictory.

[0014] Furthermore, the terminology and technical content used in this specification may be appropriately adapted from the terminology and technical content described in specifications and contributions of communication standards such as 3GPP. Examples of such specifications are those described in Non-Patent Documents 1 to 14.

[0015] The following describes in detail, with reference to the drawings, embodiments of the base station, terminal, and wireless communication system disclosed in this application. The following embodiments are not intended to limit the disclosed technology. Embodiment 1

[0016] Figure 1 shows an example of a wireless communication system 1 in Embodiment 1. The wireless communication system 1 includes a base station 100 and terminals 200A and 200B. The base station 100 forms a cell C10. Terminals 200A and 200B are located within cell C10. When terminals 200A and 200B are not distinguished, they are simply referred to as terminal 200.

[0017] Furthermore, base station 100 may be a small wireless base station (including micro wireless base stations, femto wireless base stations, etc.) such as a macro wireless base station or pico wireless base station, or wireless base stations of various sizes, and may be described as a wireless communication device, communication device, transmitting device, etc. Also, terminal 200 may be a communication device with various functions that has the function of relaying signals, and may be described as a wireless communication device, communication device, receiving device, repeater, etc. Also, terminal 200 may be a wireless terminal of various devices with wireless communication functions such as mobile phones, smartphones, PDAs (Personal Digital Assistants), personal computers, vehicles, airplanes, drones, etc., or a device (sensor device, etc.) mounted on robots, AV equipment, home appliances, office equipment, vending machines, other living equipment, industrial equipment, etc., and may be described as a wireless communication device, communication device, receiving device, mobile station, etc.

[0018] Base station 100 is connected to the network via wired connections with network devices (higher-level devices and other base stations) not shown in the diagram. Alternatively, base station 100 may be connected to the network devices wirelessly instead of via wired connections.

[0019] The base station 100 may separate its wireless communication function with the terminal 200 from its digital signal processing and control functions into separate devices. In this case, the device with wireless communication functionality can be called an RRH (Remote Radio Head), and the device with digital signal processing and control functions can be called a BBU (Base Band Unit). The RRH may be installed extending from the BBU, and they may be connected by a wired connection such as an optical fiber, or they may be connected wirelessly. Alternatively, instead of separating into RRH and BBU as described above, the base station may be separated into, for example, a Central Unit (CU), a Distributed Unit (DU), and a Radio Unit (RU). The DU may include, for example, the functions of the MAC (Media Access Control) layer. Furthermore, the DU may include, for example, the functionality of the RLC (Radio Link Control) layer. The RU may include at least an RF radio circuit. The DU and RU may be integrated into a single configuration.

[0020] Meanwhile, terminal 200 communicates with base station 100 via wireless communication.

[0021] Next, the base station 100 will be described. Figure 2 shows an example of a functional configuration block diagram of the base station 100. The base station 100 has a wireless communication unit 110, a control unit 120, a storage unit 130, and a communication unit 140.

[0022] The wireless communication unit 110 consists of a transmitter 111 and a receiver 112, and communicates wirelessly with the terminal 200. Specifically, the transmitter 111 transmits to the terminal 200, for example, measurement signals (e.g., SS / PBCH, reference signal), random access procedure signals, RRC (Radio Resource Control) layer signals, downlink data signals, downlink control signals, and other downlink signals. The transmitter 111 also transmits an LP-WUS (Low Power Wake Up Signal) to the terminal 200.

[0023] The receiving unit 112 can receive uplink signals transmitted from the terminal 200, such as random access procedure signals, RRC layer signals, uplink data signals, and uplink control signals.

[0024] The control unit 120 controls the base station 100. Specifically, the control unit 120 can control the establishment of an RRC connection with the terminal 200, signal processing of signals received by the receiving unit 112, creation of transmission blocks (TBs), and mapping of transmission blocks to wireless resources. The control unit 120 can also control the transmission of LP-WUS to terminal 200 where the main receiver is not activated.

[0025] The memory unit 130 can store, for example, downlink data signals.

[0026] The communication unit 140 connects to network devices (e.g., host devices, other base station devices) via wired or wireless connections and performs communication. Data signals received by the communication unit 140 for the terminal 200 can be stored in the storage unit 130. Note that the wireless communication unit 110 and the communication unit 140 may be collectively referred to as the communication unit.

[0027] Next, the terminal 200 will be described. Figure 3 is a diagram showing an example of a functional configuration block diagram of the terminal 200. As shown in Figure 3, the terminal 200 comprises a communication unit 210, a control unit 220, and a storage unit 230. Each of these components is connected so that signals and data can be input and output in one direction or bidirectionally. The communication unit 210 can be described separately as a transmitting unit 211, a first receiving unit 212, and a second receiving unit 213. For example, the first receiving unit 212 is an example of a main receiver. The second receiving unit 213 is an example of a low-power receiver. The low-power receiver may also be described as a wake-up receiver. The second receiving unit 213 may also be described as a receiver with lower power consumption than the first receiving unit 212.

[0028] The transmitting unit 211 transmits data signals and control signals wirelessly via an antenna. The antenna may be the same for both transmission and reception. The transmitting unit 211 transmits, for example, uplink signals such as random access procedure signals, RRC layer signals, uplink data signals, and uplink control signals.

[0029] The first receiving unit 212 receives downlink signals transmitted from the base station 100, such as random access procedure signals, downlink data signals, and downlink control signals. The received signals may also include, for example, reference signals used for channel estimation and demodulation. The first receiving unit 212 can also receive and measure measurement signals transmitted from the base station 100.

[0030] The second receiving unit 213 receives, for example, LP-WUS transmitted from the base station 100.

[0031] The control unit 220 controls the terminal 200. Specifically, the control unit 220 can control the establishment of an RRC connection with the base station 100, signal processing of signals received by the first receiver 212, creation of transmission blocks (TBs), and mapping of transmission blocks to radio resources. The control unit 220 can also control the measurement of measurement signals in the first receiver 212. Furthermore, the control unit 220 can control the activation of the first receiver 212 and the second receiver 213. For example, the control unit 220 controls the first receiver 212 to activate when the second receiver 213 receives an LP-WUS. The control unit 220 also controls the monitoring of the second signal in response to information indicating that at least some of the resources for which the monitoring opportunity for the second signal has been set may be used by other signals.

[0032] The storage unit 230 can store, for example, uplink data signals. The storage unit 230 can also store configuration information (or setting information) related to wireless communication transmitted from the base station 100.

[0033] Next, the processing flow of the wireless communication system 1 in Embodiment 1 will be explained using Figure 4. Figure 4 is a diagram showing an example of a sequence diagram of the wireless communication system 1.

[0034] The transmitting unit 111 of the base station 100 transmits a first signal to the terminal 200 (step S10). The first receiving unit 212 of the terminal 200 receives the first signal (step S10). The first signal includes, for example, setting information to set an opportunity to monitor a second signal. The first signal is, for example, a broadcast signal, MIB (Master Information Block), or SIBx (System Information Block x (where x is an integer)). The second signal is, for example, a Wake-UP signal. The control unit 220 of the terminal 200, upon receiving the first signal, sets an opportunity to monitor a second signal according to the setting information. The setting information also includes first information indicating that at least some of the resources for which an opportunity to monitor a second signal has been set may be used by other signals. Furthermore, the monitoring opportunity for the second signal is an example of the monitoring opportunity for the first signal. Resources that may be used by other signals within the monitoring opportunity for the second signal are examples of the first resources. Also, resources within the monitoring opportunity for the second signal, excluding the first resources, are examples of the second resources. In short, the monitoring opportunity for the second signal consists of the first and second resources.

[0035] The control unit 220 of terminal 200 performs a first process, which is a process of transitioning from a first state to a second state (step S20). The first state is, for example, a state in which a signal can be received by the first receiving unit 212 corresponding to the main receiver. The second state is, for example, a state in which a signal cannot be received by the first receiving unit 212 corresponding to the main receiver, but a signal can be received by the second receiving unit 213 corresponding to the low-power receiver. The first state may be described as the startup state, and the second state as the low-power state. The control unit 220 of terminal 200 controls the second receiving unit 213 to monitor for opportunities to monitor the second signal when terminal 200 is in the second state. The control unit 220 of terminal 200 also controls the terminal 200 not to receive signals via the first receiving unit 212 or to monitor signals when terminal 200 is in the second state. The first process is, for example, a process in which, after the terminal 200 has transitioned to an idle state or an inactive state, the wireless quality exceeds or is equal to a predetermined value, and the system transitions from the first state to the second state.

[0036] The control unit 120 of the base station 100 performs a second process (step S30) to determine which resource will transmit the second signal to the terminal 200 in the second state from the resource corresponding to the monitoring opportunity set using the first signal. Details of the second process will be described later.

[0037] The transmitting unit 111 of the base station 100 transmits a second signal using the resource determined in the second process (step S40). The second receiving unit 213 of the terminal 200 receives the second signal (step S40). The base station 100 can also cause the terminal 200 to perform control to receive a third signal by transmitting a second signal using the resource corresponding to the set monitoring opportunity.

[0038] The control unit 220 of the terminal 200 performs a third process, which includes receiving signals and monitoring signals via the first receiving unit 212 (step S50).

[0039] The transmitting unit 111 of the base station 100 transmits a third signal after transmitting a second signal (step S60). The first receiving unit 212 of the terminal 200 receives the third signal (step S60). The third signal is, for example, a paging message, a paging PDCCH (Physical Downlink Control Channel). The resource to which the third signal is transmitted may or may not be associated with the resource to which the second signal is received. The monitoring opportunity for the third signal is set, for example, by the first signal or a signal different from the first signal (for example, if the first signal is SIBx, the signal different from the first signal is SIBy or another RRC layer signal). The monitoring opportunity for the third signal is, for example, a paging opportunity (PO (Paging Occasion)). The third signal monitoring opportunity is an example of the second monitoring opportunity.

[0040] Here, the second process will be explained in detail using Figures 5, 6, and 7. Figures 5 and 6 show an example of resource arrangement in Embodiment 1. Figure 7 shows an example of processing at the base station 100 in Embodiment 1.

[0041] In Figures 5 and 6, the frequency direction is composed of frequency resources RB#1, RB#2, and RB#3, and time resources T#1, T#2, and T#3. Here, resources A#1, A#2, and A#3, to which other signals may be mapped, are set according to the first information. Resources A#1, A#2, and A#3, to which other signals may be mapped, may be set in common with time resources T#1 to T#3, or they may be set individually. Alternatively, they may be composed of some of the time resources T#1, T#2, and T#3. Time resources may also be described as intervals. Intervals correspond to time axis units such as subframes, slots, and symbols.

[0042] Using FIG. 7, the base station 100 will explain the second process. The base station 100 determines whether or not the transmission condition of the second signal is satisfied (step S31). Note that the transmission condition of the second signal is, for example, to receive an instruction (Paging request) for transmitting a paging signal from the upper device (for example, AMF (Application Management Function)) to the terminal 100.

[0043] When the transmission condition of the second signal is not satisfied (step S31: No), the process ends without performing the process related to the transmission of the second signal.

[0044] When the transmission condition of the second signal is satisfied (step S31: Yes), a resource for transmitting the second signal is determined (step S32). For example, any one of the monitoring opportunities of the second signal set in the setting information is determined as the resource for transmitting the second signal. Note that the base station 100 determines, for example, the resource B#1 in FIG. 6 as the resource for transmitting the second signal.

[0045] The base station 100 determines whether or not a predetermined condition is satisfied (step S33). Here, the predetermined condition will be described. Note that it will be described assuming that the base station 100 has determined to transmit the second signal using the resource B#1 within the frequency resource RB#3 and the time resource T#2 as shown in FIG. 6. Here, the base station 100 determines whether or not to map the second signal at the overlapping resource C#1 between the resource B#1 and the resource A#2. For example, when the control unit 120 of the base station 100 maps a signal different from the second signal (for example, SSB, CSI-RS, data signal) at the resource C#1, it is determined not to map the second signal at the resource C#1. In short, the control unit 120 of the base station 100 allocates the second signal to the resource excluding the resource C#1 among the resource B#1. Thus, the predetermined condition is whether or not it is possible to map the second signal at the resource C#1.

[0046] When the predetermined conditions are satisfied (step S33: Yes), the base station 100 maps the second signal to a resource (e.g., resource B#1 in FIG. 6) including overlapping resources (e.g., resource C#1 in FIG. 6) (step S34). Also, when the predetermined conditions are not satisfied (step S33: No), the base station 100 maps the second signal to a resource (e.g., resource B#1 in FIG. 6) excluding the overlapping resources (e.g., resource C#1 in FIG. 6) (step S35).

[0047] By controlling in this way, it becomes possible to puncture a part of the resource B#1 (e.g., resource C#1) to which the second signal is mapped according to the network situation. Also, the terminal 200 blindly decodes the resource B#1 and determines whether the second signal is mapped to the resource C#1. For example, the terminal 200 performs a first decoding process of decoding assuming that there is no puncturing, and a second decoding process of decoding assuming that there is puncturing, and uses the results of the first decoding process and the second decoding process to determine whether the second signal is mapped to the resource C#1.

[0048] Alternatively, the base station 100 may indicate whether the second signal is mapped to the resource C#1 in a part of the resources (or bits) within the resource B#1.

[0049] Note that the first information may be information indicating a resource where the second signal cannot be mapped. In this case, the second signal is shifted and arranged from the specified resource according to the resource indicated by the first information. Note that, for example, the second signal can be classified into two parts: a first part that can be actually mapped and transmitted after being shifted and arranged according to the resource indicated by the first information, and a second part that cannot be mapped and transmitted. Here, the information classified into the second part can be notified by being reconstructed with other bits by rate matching.

[0050] As described above, in Embodiment 1, the base station 100 transmits a first signal to the terminal 200 that includes first information indicating that a first resource, which is at least a portion of the resources for which a first monitoring opportunity for the second signal is set, may be used by other signals. The base station 100 also determines the resources to which the second signal is transmitted according to the first information. The terminal 200 also performs control to adjust the monitoring of the second signal according to the first information. In this way, it is possible to control the second signal (e.g., LP-WUS) to avoid collisions with other signals (e.g., signals transmitted to other terminals, signals transmitted from other base stations to other terminals). Furthermore, since a portion of the second signal can be punctured, it is possible to easily secure resources when it is desired to utilize many resources for other terminals. Embodiment 2

[0051] In Embodiment 1, a first information is transmitted from the base station to the terminal indicating that the first resource, which is at least a portion of the resources for which the first monitoring opportunity of the second signal is set, may be used by other signals, and an example of control in accordance with the first information is described. In Embodiment 2, an example is described when the uplink section and the monitoring opportunity of the second signal overlap. Note that in Embodiment 2, the wireless communication system, base station, and terminal are the same as in Embodiment 1, so their description is omitted.

[0052] Using Figure 8, the resources for mapping the second signal in Embodiment 2 will be explained. Figure 8 is a diagram showing an example of resource arrangement in Embodiment 2. In Figure 8, for example, the uplink section (UL) and downlink section (DL) are set by a TDD (Time Division Duplex) configuration set by the second information. In the example in Figure 8, the downlink section is set in sections #0 to #3 and sections #5 to #8, and the uplink section is set in sections #4 and #9. The second information may be transmitted with the first signal, or with a signal different from the first signal. For example, the second information may be transmitted with SIB1. The second information is, for example, TDD-UL-DL-ConfigCommon.

[0053] Here, Figure 8 illustrates an example where the resources (or monitoring opportunities for the second signal) to which the second signal may be transmitted are set to intervals #2 through #5. Note that the resources (or monitoring opportunities for the second signal) to which the second signal may be transmitted are set according to the monitoring opportunities for the third signal. For example, by giving a predetermined offset to the monitoring opportunity for the third signal, the resources (or monitoring opportunities for the second signal) to which the second signal may be transmitted are set.

[0054] Figure 8 illustrates three patterns in the above case.

[0055] First, let's explain Pattern 1.

[0056] In Pattern 1, the resources (or monitoring opportunities for the second signal) on which the second signal may be transmitted consist of sections S#2 to S#5. Since section S#4 is an uplink section, the information containing the second signal that the base station 100 maps to section S#4 will be punctured. In short, Pattern 1 is an example of puncturing an uplink section when the resources (or monitoring opportunities for the second signal) on which the second signal may be transmitted overlap with an uplink section.

[0057] Next, I will explain Pattern 2.

[0058] In Pattern 2, the resources (or monitoring opportunities for the second signal) on which the second signal may be transmitted consist of sections S#2, S#3, S#5, and S#6. This is because section S#4 is an uplink section, so the base station 100 designates the four sections from section S#2 onwards as resources (or monitoring opportunities for the second signal) on which the second signal may be transmitted, excluding section S#4. In short, Pattern 2 is an example of how, if the resources (or monitoring opportunities for the second signal) on which the second signal may be transmitted overlap with an uplink section, the uplink section is avoided and the resources are placed behind it.

[0059] Finally, let's discuss pattern 3.

[0060] In Pattern 3, the resources (or monitoring opportunities for the second signal) from which the second signal may be transmitted consist of sections S#5, S#6, S#7, and S#8. This is because section S#4, which is an uplink section, is included in the middle, so the four sections starting from section S#5, which follows the uplink section, are designated as resources (or monitoring opportunities for the second signal) from which the second signal may be transmitted. In short, Pattern 3 is an example of how, if the resources (or monitoring opportunities for the second signal) from which the second signal may be transmitted overlap with an uplink section, the uplink section is avoided, and the resources (or monitoring opportunities for the second signal) from which the second signal may be transmitted start from the section following the uplink section. Note that sections correspond to time axis units such as subframes, slots, and symbols.

[0061] Furthermore, patterns 1 to 3 may be combined in a manner that does not contradict each other. For example, the starting position of a resource (or an opportunity to monitor the second signal) where a second signal may be transmitted may be determined using the method of pattern 3, and then, if the uplink section is still in progress, processing for that uplink section may be performed using the method of pattern 1 or pattern 2.

[0062] As described above, in Embodiment 2, if the resource on which the second signal may be transmitted (or the opportunity to monitor the second signal) overlaps with the resources in the uplink section, processing that takes the uplink section into consideration can be performed. Therefore, it is possible to prevent the second signal from colliding with the uplink signal.

[0063] Furthermore, the contents of Embodiment 1 and Embodiment 2 may be combined. For example, allocation control is performed using the method described in Embodiment 1 in the section of resources (or monitoring opportunities for the second signal) to which the second signal set in Embodiment 2 may be transmitted. For example, section S#3 in Figure 8 may correspond to section T#2 in Figure 6. In short, the section in Figure 8 and the section in Figure 6 may be the same length. Hardware configuration of each device in each embodiment

[0064] The hardware configuration of each device in the wireless communication system of each embodiment will be described based on Figures 9 to 10.

[0065] Figure 9 shows an example of the hardware configuration of base station 100. As shown in Figure 9, base station 100 has, as hardware components, an RF (Radio Frequency) circuit 320 equipped with an antenna 310, a CPU (Central Processing Unit) 330, a DSP (Digital Signal Processor) 340, a memory 350, and a network IF (Interface) 360. The CPU 330 is connected via a bus to enable input and output of various signals and data signals. The memory 350 includes, for example, at least one of RAM (Random Access Memory) such as SDRAM (Synchronous Dynamic Random Access Memory), ROM (Read Only Memory), and flash memory, and stores programs, control information, and data signals.

[0066] The correspondence between the functional configuration of the base station 100 shown in Figure 2 and the hardware configuration of the base station 100 shown in Figure 9 will be explained. The transmitting unit 111 and the receiving unit 112 (or wireless communication unit 110) are realized by, for example, an RF circuit 320, or an antenna 310 and an RF circuit 320. The control unit 120 is realized by, for example, a CPU 330, a DSP 340, a memory 350, and a digital electronic circuit (not shown). Examples of digital electronic circuits include ASIC (Application Specific Integrated Circuit), FPGA (Field Programmable Gate Array), and LSI (Large Scale Integration). The storage unit 130 is realized by, for example, a memory 350. The communication unit 140 is realized by, for example, a network IF 360.

[0067] Furthermore, while the base station 100 can generate multiple data signals transmitted in multiple subbands, the filters that generate these signals may be configured independently for each subband.

[0068] Figure 10 shows an example of the hardware configuration of terminal 200. As shown in Figure 10, terminal 200 has, as hardware components, an RF circuit 420 equipped with an antenna 410, a CPU 430, a DSP 440, and a memory 450. The memory 450 includes at least one of RAM such as SDRAM, ROM, and flash memory, and stores programs, control information, and data signals.

[0069] The correspondence between the functional configuration of terminal 200 shown in Figure 3 and the hardware configuration of terminal 200 shown in Figure 10 will be explained. The transmitting unit 211, the first receiving unit 212, and the second receiving unit 213 (or communication unit 210) are realized by, for example, an RF circuit 420, or an antenna 410 and an RF circuit 420. The control unit 220 is realized by, for example, a CPU 430, a DSP 440, a memory 450, and a digital electronic circuit (not shown). Examples of digital electronic circuits include ASICs, FPGAs, and LSIs. The storage unit 230 is realized by, for example, a memory 450. Note that the first receiving unit 212 and the second receiving unit 213 may use separate antennas 410 and RF circuits 420.

[0070] Furthermore, each embodiment may be combined as appropriate, within the bounds of consistency.

[0071] Although each embodiment describes an example of a base station and a terminal, the disclosed technology is not limited to these examples and can be applied to various devices such as electronic equipment mounted on automobiles, trains, airplanes, satellites, electronic equipment transported by drones, robots, AV equipment, home appliances, office equipment, vending machines, and other everyday devices.

[0072] Furthermore, although each embodiment was explained using fifth-generation mobile communication as an example, the disclosed technology is not limited to these. For example, the disclosed technology may be applied to mobile communication of different generations, such as sixth-generation or seventh-generation.

[0073] 1 Wireless Communication System 100 Base Station C10 Cell 110 Wireless Communication Unit 111 Transmitter Unit 112 Receiver Unit 120 Control Unit 130 Memory Unit 140 Communication Unit 200 Terminal 210 Communication Unit 211 Transmitter Unit 212 First Receiver Unit 213 Second Receiver Unit 220 Control Unit 230 Memory Unit 310 Antenna 320 RF Circuit 330 CPU 340 DSP 350 Memory 360 Network IF 410 Antenna 420 RF Circuit 430 CPU 440 DSP 450 Memory

Claims

1. A terminal comprising: a first receiving unit that receives a first signal which includes first information indicating that a first resource, which is at least some of the resources for which a first monitoring opportunity for a second signal is set, may be used by another signal; a second receiving unit that receives the second signal; and a control unit that performs control to adjust the monitoring of the second signal in accordance with the first information.

2. The terminal according to claim 1, wherein the first information includes information indicating a first resource where the second signal may be punctured, and the control unit determines, in accordance with the first information, whether the second signal is punctured in the first resource and controls the device to perform receiving processing of the second signal.

3. The terminal according to claim 1, wherein the first information includes information indicating that the second signal is not mapped to the first resource, and the control unit controls the second resource, excluding the first resource among the first monitoring opportunities, to perform the reception processing of the second signal.

4. The terminal according to claim 3, wherein the receiving process includes rate matching processing for the second signal.

5. The terminal according to claim 1, wherein the control unit, upon receiving the second signal, activates the first receiving unit and controls the first receiving unit to receive the third signal.

6. The terminal according to claim 5, wherein the first signal is a System information block, the second signal is a Wake-UP signal, and the third signal is a paging signal.

7. The terminal according to claim 5, wherein the first monitoring opportunity is set according to the first information, the second monitoring opportunity of the third signal, and the offset value.

8. The terminal according to claim 1, wherein the first receiving unit receives second information for setting an uphill section and a downhill section, and the control unit, when the first monitoring opportunity overlaps with the uphill section, uses the uphill section as the first resource and controls the monitoring of the second signal.

9. A base station comprising: a transmitting unit that transmits a first signal and a second signal, which transmits a first signal containing first information indicating that a first resource, which is at least some of the resources for which a first monitoring opportunity for a second signal is set, may be used by other signals; and a control unit that performs control to determine the resource on which the second signal is transmitted according to the first information.

10. A wireless communication system comprising: a first signal including first information indicating that a first resource, which is at least some of the resources for which a first monitoring opportunity for a second signal is set, may be used by another signal; a base station transmitting the second signal; and a terminal receiving the first signal and receiving the second signal, wherein the terminal performs control to adjust the monitoring of the second signal in accordance with the first information.

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