Terminal and sensing method

Abstract

In a terminal, there are provided a transmission unit that transmits a sensing signal, and a control unit that stops transmission of the sensing signal when a specific opportunity is detected.

Description

Technical Field

[0001] This invention relates to terminals in wireless communication systems and sensing methods. Background Technology

[0002] In NR (New Radio) (also known as "5G"), which is the successor system to LTE (Long Term Evolution), technologies were introduced to meet requirements such as high-capacity systems, high-speed data transmission, low latency, simultaneous connection of multiple terminals, low cost, and power saving.

[0003] Furthermore, within 3GPP (registered trademark), research is underway on ISAC (Integrated Sensing and Communication), which utilizes nodes within the 3GPP (registered trademark) system for sensing surrounding objects. In ISAC, there is no need to mount a SIM card on the object being sensed; instead, the object's position is sensed through signal reflection.

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 38.322 V18.0.0 (2023-12)

[0007] Non-patent document 2: 3GPP TS 38.331 V18.0.0 (2023-12) Summary of the Invention

[0008] The problem that the invention aims to solve

[0009] When the terminal is a transmitter sending sensing signals, if the terminal moves outside the coverage area of ​​the base station, the sensing signals may not reach the base station. If the sensing signals do not reach the base station, the base station can stop sensing, but cannot send a signal to the terminal to stop sensing. As a result, the terminal will waste the power required to send the sensing signals.

[0010] The present invention has been made in view of the above aspects, and its object is to provide a technique for reducing useless power consumption in a terminal that transmits sensing signals.

[0011] Methods for solving problems

[0012] According to publicly available technology, a terminal is provided, the terminal having:

[0013] The transmitting unit transmits sensing signals; and

[0014] The control unit stops sending the sensing signal when a specific trigger is detected.

[0015] Invention Effects

[0016] According to the disclosed technology, a technique is provided for reducing unnecessary power consumption in terminals that transmit sensing signals. Attached Figure Description

[0017] Figure 1 This is a diagram used to illustrate a wireless communication system according to an embodiment of the present invention.

[0018] Figure 2 This is a diagram used to illustrate a wireless communication system according to an embodiment of the present invention.

[0019] Figure 3 This is a diagram illustrating an example of an ISAC implementation on a 3GPP (Registered Trademark) system.

[0020] Figure 4 This is a diagram illustrating an example of an architecture for sensing.

[0021] Figure 5 This is a diagram illustrating an example of an architecture for sensing.

[0022] Figure 6 This is a diagram illustrating an example of an architecture for sensing.

[0023] Figure 7 It is a diagram used to illustrate the topic.

[0024] Figure 8 It is a diagram used to illustrate the topic.

[0025] Figure 9 This is a flowchart of implementation method 1-1.

[0026] Figure 10 It is an existing specification referenced in implementation methods 1-3.

[0027] Figure 11 It is an existing specification referenced in implementation methods 1-3.

[0028] Figure 12 This is a flowchart of implementation method 2-1.

[0029] Figure 13 This is a diagram illustrating an example of the functional structure of a base station according to an embodiment of the present invention.

[0030] Figure 14 This is a diagram illustrating an example of the functional structure of a terminal according to an embodiment of the present invention.

[0031] Figure 15This is a diagram illustrating an example of the hardware structure of a base station or terminal according to an embodiment of the present invention.

[0032] Figure 16 This is a diagram illustrating an example of the structure of a vehicle according to an embodiment of the present invention. Detailed Implementation

[0033] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, the embodiments described below are examples, and the application of the present invention is not limited to these embodiments.

[0034] In the operation of the wireless communication system according to embodiments of the present invention, existing technologies are appropriately used. However, these existing technologies are, for example, existing LTE or existing NR, but are not limited to existing LTE or NR.

[0035] Furthermore, in the embodiments of the present invention described below, terms such as 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), and PUSCH (Physical Uplink Shared Channel) used in existing LTE or NR systems are sometimes used. This is for ease of description; the same signals, functions, etc., may also be referred to by other names.

[0036] Furthermore, in embodiments of the present invention, the duplex mode can be either TDD (Time Division Duplex) mode, FDD (Frequency Division Duplex) mode, or other modes (e.g., Flexible Duplex).

[0037] Furthermore, in embodiments of the present invention, the so-called "configure" of wireless parameters can be either a pre-configured specific value or a wireless parameter notified from the base station 10 or the terminal 20.

[0038] (System Structure)

[0039] Figure 1 This is a diagram illustrating a structural example (1) of a wireless communication system according to an embodiment of the present invention. Figure 1 As shown, the wireless communication system in an embodiment of the present invention includes a base station 10 and a terminal 20. Figure 1 The image shows one base station 10 and one terminal 20, but this is just one example; there could be multiple terminals.

[0040] Base station 10 is a communication device that provides one or more cells and communicates wirelessly with terminal 20. The physical resources of the wireless signal are defined in the time domain and 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 resource blocks. In addition, the TTI (Transmission Time Interval) in the time domain can be either a time slot or a subframe.

[0041] Base station 10 sends synchronization signals and system information to terminal 20. Synchronization signals may be, for example, NR-PSS and NR-SSS. System information, also known as notification information, is transmitted via NR-PBCH. Synchronization signals and system information may also be referred to as SSB (SS / PBCH block). Figure 1As shown, base station 10 transmits control signals or data to terminal 20 via DL (Downlink) and receives control signals or data from terminal 20 via UL (Uplink). Both base station 10 and terminal 20 are capable of beamforming for signal transmission and reception. Furthermore, both base station 10 and terminal 20 can apply MIMO (Multiple Input Multiple Output) based communication to DL or UL. Additionally, both base station 10 and terminal 20 can communicate via CA (Carrier Aggregation) through secondary cells (SCells) and primary cells (PCells). Further, terminal 20 can also communicate via DC (Dual Connectivity) through the primary cell of base station 10 and other primary and secondary cell groups (PSCells: Primary SCG Cells) of base station 10.

[0042] Terminal 20 is a communication device with wireless communication capabilities, such as a smartphone, mobile phone, tablet computer, wearable terminal, or M2M (machine-to-machine) communication module. Figure 1 As shown, terminal 20 receives control signals or data from base station 10 via DL and transmits control signals or data to base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system. Furthermore, terminal 20 receives various reference signals transmitted from base station 10 and performs propagation path quality measurements based on the reception results of these reference signals. Alternatively, terminal 20 can be referred to as UE, and base station 10 as gNB.

[0043] Figure 2 This is a diagram used to illustrate an example (2) of a wireless communication system in an embodiment of the present invention. Figure 2 This illustrates an example of the structure of a wireless communication system implementing DC (dual connectivity). Figure 2 As shown, the system includes base station 10A, which acts as the MN (Master Node), and base station 10B, which acts as the SN (Secondary Node). Base station 10A and base station 10B are connected to the core network. Terminal 20 is capable of communicating with both base station 10A and base station 10B.

[0044] The cell group provided by base station 10A, which acts as the MN, is called the MCG (Master Cell Group), and the cell group provided by base station 10B, which acts as the SN, is called the SCG (Secondary Cell Group). Furthermore, in the DC, the MCG consists of one PCell and one or more SCells, and the SCG consists of one PSCell (Primary SCG Cell) and one or more SCells.

[0045] The processing operation in this embodiment can be achieved through... Figure 1 The system architecture shown can be used to execute this, or it can be done through... Figure 2 The system architecture shown can be used for execution, but it can also be executed through other system architectures.

[0046] (About ISAC (Integrated Sensing and Communication))

[0047] As mentioned earlier, within 3GPP (Trademarked), ISAC (Interactive Object Sensing) is being researched, utilizing nodes within the 3GPP (Trademarked) system for sensing surrounding objects. Figure 3 The image shows an example of an ISAC implementation on a 3GPP (Registered Trademark) system.

[0048] In ISAC, there is no need to mount a SIM card on the object being sensed; the object's position is sensed through signal reflection. Both base station 10 and terminal 20 can act as both transmitting and receiving nodes. Specific use cases include intruder detection in smart homes, drone flight position tracking, and road object detection.

[0049] Furthermore, the ISAC study for SA (Special Application) in 3GPP (registered trademark) specifies the following requirements (TR 22.837): "Subject to regulation and operator policy, the 5G network shall be able to activate, configure, and deactivate 5G wireless sensing based on parameters such as location and network conditions (e.g., network load)."

[0050] That is, 5G NW can activate, configure, and deactivate sensing based on the situation. In addition, although there has been no specific discussion on sensing deactivation, activation, configuration, and deactivation may be performed at a granularity such as on a unit of terminal 10 / base station 20 or on a unit of radio resources.

[0051] (Regarding the architecture for sensing)

[0052] In this embodiment, the case where the transmitter or receiver is the terminal 10 is taken as the example. Figures 4-6 An example of a sensing mode is shown when the transmitter or receiver is terminal 10. Figures 4-6 An example is shown where the sensed object is object 30 (such as a drone).

[0053] exist Figure 4 In the example shown, terminal 20 receives a sensing signal reflected by object 30. Figure 5 In the example shown, terminal 20 sends a sensing signal. In Figure 6 In the example shown, terminal 20A sends a sensing signal, and terminal 20B receives the sensing signal reflected by object 30.

[0054] (Regarding the research topic)

[0055] Consider the following situation: A terminal 20 is set to sense and the sensing is activated from base station 10. The terminal 20 moves outside the coverage area of ​​base station 10 and is unable to attach to other base stations 10. The issues in scenarios 1 and 2 will be explained below.

[0056] (1) Case 1: Terminal 20 is a receiver

[0057] like Figure 7 As shown in (a) and (b), when terminal 20 receives a sensing signal reflected by object 30, terminal 20 moves outside the coverage area of ​​base station 10.

[0058] Imagine that terminal 20 typically reports the set sensing results to base station 10. However, as Figure 7 As shown in (b), in this case, the sensing results cannot be reported from the terminal 20 to the base station 10.

[0059] Base station 10 can perform sensing deactivation when terminal 20 moves out of coverage, but it cannot send a deactivation instruction to terminal 20. As a result, terminal 20 will not be able to stop monitoring the configured radio resources, saving sensing results, and reporting sensing results. Therefore, terminal 20 will waste power unnecessarily.

[0060] (2) Case 2: Terminal 20 is a transmitter

[0061] like Figure 8 As shown in (a), (b), and (c), when terminal 20 sends a sensing signal, terminal 20 moves outside the coverage area of ​​base station 10.

[0062] Imagine that terminal 20 typically and continuously transmits a set sensing signal. However, in this case, there is a possibility that the sensing signal reaches base station 10 ((b) scenario 2-1), and there is also a possibility that the sensing signal does not reach base station 10 ((c) scenario 2-2).

[0063] In scenario 2-2, base station 10 is able to perform sensing deactivation, but cannot send a deactivation instruction to terminal 20. As a result, terminal 20 will be unable to stop transmitting sensing signals using the configured radio resources. Therefore, terminal 20 will waste power.

[0064] Hereinafter, Embodiment 1 and Embodiment 2 will be described as techniques for solving the above-mentioned problems. Embodiment 1 corresponds to Case 1 described above and is an embodiment where the terminal 20 is a receiver. Embodiment 2 corresponds to Case 2 described above and is an embodiment where the terminal 20 is a transmitter.

[0065] Implementation 1 includes Implementations 1-1 to 1-3, and Implementation 2 includes Implementations 2-1 to 2-3. Each implementation will be described below. Furthermore, in the following description, the "NW (network)" used to configure terminal 20 can be either base station 10 or a network node other than base station 10.

[0066] (Implementation Method 1-1)

[0067] In implementation 1-1, a timer is introduced for automatically stopping the reception of sensing signals. Specifically, it is described below.

[0068] The NW sets a new timer for terminal 20 with the following characteristics: activation / update trigger, expiration operation. Furthermore, the timer can be set for each terminal 20 or for each radio resource. Alternatively, the terminal 20 can be configured to hold the timer in advance even without settings from the NW.

[0069] <Initiation Opportunity>

[0070] The activation trigger is when the NW sets up sensing for the terminal 20. That is, when the terminal 20 receives settings from the NW to enable it to use specific wireless resources to receive sensing signals, the terminal 20 starts the timer. However, the activation trigger is not limited to this; for example, the terminal 20 may also start the timer when it receives a signal from the NW instructing it to start the timer.

[0071] <Opportunity for Renewal>

[0072] Terminal 20 updates the timer (returns to the initial value) based on either (1) or (2) below. Terminal 20 may set either (1) or (2) as the update trigger, or it may set both (1) and (2) as update triggers.

[0073] (1) When RRC reconfiguration is performed.

[0074] (2) When a new MAC CE is received from NW to update the timer.

[0075] <Procedures upon expiration>

[0076] If the timer expires, the terminal 20 performs the following operation (1) or (2).

[0077] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0078] (2) Terminal 20 stops sensing. More specifically, terminal 20 performs the operation described in (2-1) or (2-2) below.

[0079] (2-1)

[0080] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. In addition, terminal 20 stops reporting the sensing results.

[0081] (2-2)

[0082] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. Furthermore, terminal 20 discards the held sensing results. Additionally, terminal 20 stops reporting the sensing results.

[0083] <Processing Flow>

[0084] Along Figure 9 The flowchart shown illustrates an example of the processing procedure for terminal 20. In S101, terminal 20 is configured to sense via NW. In S102, terminal 20 starts a timer. If the timer expires (S103 "Yes"), then in S104, terminal 20 releases the radio resources, ends the monitoring of the sensed signal, and discards the results. Furthermore, terminal 20 stops reporting the sensed results.

[0085] If the timer has not yet expired ("No" in S103), in S105, terminal 20 performs RRC reconfiguration or receives a new MAC CE. In S106, terminal 20 updates the timer.

[0086] (Implementation methods 1-2)

[0087] In implementation methods 1-2, a threshold for channel quality (reception quality) is introduced for automatically stopping sensing. This threshold can be specified in the specification or, for example, set by the base station 10 to the terminal 20 via RRC configuration.

[0088] If the received signal (e.g., a reference signal transmitted from base station 10 such as CSI RS) is detected to have a reception quality lower than a threshold, terminal 20 performs the operation described in (1) or (2) below. Furthermore, "reception quality" has a broad meaning and includes received power. Examples of "reception quality" include RSRP, RSRQ, etc.

[0089] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0090] (2) Terminal 20 stops sensing. More specifically, terminal 20 performs the operation described in (2-1) or (2-2) below.

[0091] (2-1)

[0092] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. In addition, terminal 20 stops reporting the sensing results.

[0093] (2-2)

[0094] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. Furthermore, terminal 20 discards the held sensing results. Additionally, terminal 20 stops reporting the sensing results.

[0095] (Implementation methods 1-3)

[0096] In embodiments 1-3, sensing is automatically stopped when the RLC retransmission limit is exceeded. More specifically, as described below.

[0097] When the maximum number of ARQ retransmissions detected in the RLC (Radio Link Control) layer is reached, terminal 20 performs the operation described in (1) or (2) below. Furthermore, existing specifications (TS38.322, TS38.331) describe the operation of terminal 20 when the maximum number of ARQ retransmissions detected in the RLC layer is reached. Figure 10 , Figure 11 The underlined part can also be set as follows: in addition to the operation specified in the existing specification, the terminal 20 performs the following operations (1) or (2).

[0098] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0099] (2) Terminal 20 stops sensing. More specifically, terminal 20 performs the operation described in (2-1) or (2-2) below.

[0100] (2-1)

[0101] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. In addition, terminal 20 stops reporting the sensing results.

[0102] (2-2)

[0103] Terminal 20 releases the wireless resources of the set sensing signal and stops monitoring the sensing signal. Furthermore, terminal 20 discards the held sensing results. Additionally, terminal 20 stops reporting the sensing results.

[0104] (Effects of Implementation Method 1)

[0105] According to Embodiment 1, when the terminal 20 remains outside the coverage area of ​​the base station 10, the terminal 20 can automatically stop monitoring the sensing signal. This reduces unnecessary power consumption of the terminal 20.

[0106] (Implementation Method 2-1)

[0107] In implementation 2-1, a timer is introduced to automatically stop the transmission of sensing signals. Specifically, it is described below.

[0108] NW sets a new timer for terminal 20 with the following characteristics (startup / update trigger, expiration operation). Furthermore, the timer can be set either for each terminal 20 or for each radio resource. Alternatively, it can be configured so that terminal 20 holds the timer in advance even without NW configuration.

[0109] <Initiation Opportunity>

[0110] The activation trigger is when the NW sets up sensing for the terminal 20. That is, when the terminal 20 receives a setting from the NW to use specific wireless resources to transmit or receive sensing signals, the terminal 20 starts the timer. However, the activation trigger is not limited to this; for example, the terminal 20 may also start the timer when it receives a signal from the NW instructing it to start the timer.

[0111] <Opportunity for Renewal>

[0112] Terminal 20 updates the timer (returns to the initial value) based on either (1) or (2) below. Terminal 20 may set either (1) or (2) as the update trigger, or it may set both (1) and (2) as update triggers.

[0113] (1) When RRC reconfiguration is performed.

[0114] (2) When a new MAC CE is received from NW to update the timer.

[0115] <Procedures upon expiration>

[0116] If the timer expires, the terminal 20 performs the following operation (1) or (2).

[0117] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0118] (2) Terminal 20 stops transmitting sensing signals. More specifically, terminal 20 releases the wireless resources of the sensing signals that have been set and stops transmitting sensing signals.

[0119] <Processing Flow>

[0120] Along Figure 12 The flowchart shown illustrates the processing procedure of terminal 20. In S201, terminal 20 is configured to sense via NW. In S202, terminal 20 starts a timer. If the timer expires (S203 "Yes"), then in S204, terminal 20 releases the radio resources and ends the transmission of the sensing signal.

[0121] If the timer has not yet expired (No in S203), in S205, terminal 20 performs RRC reconfiguration or receives a new MAC CE. In S206, terminal 20 updates the timer.

[0122] (Implementation Method 2-2)

[0123] In implementation 2-2, a channel quality (reception quality) threshold is introduced for automatically stopping the transmission of sensing signals. This threshold can be specified in the specification or, for example, set by the base station 10 to the terminal 20 through RRC configuration.

[0124] If the received signal (e.g., a reference signal transmitted from base station 10 such as CSI RS) is detected to have a reception quality lower than a threshold, terminal 20 performs the operation described in (1) or (2) below. Furthermore, "reception quality" has a broad meaning, including received power. "Reception quality" can be, for example, RSRP, RSRQ, etc.

[0125] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0126] (2) Terminal 20 stops transmitting sensing signals. More specifically, terminal 20 releases the wireless resources of the sensing signals that have been set and stops transmitting sensing signals.

[0127] (Implementation methods 2-3)

[0128] In implementation methods 2-3, the transmission of sensing signals is automatically stopped when the RLC (Radio Link Control) retransmission limit is exceeded. More specifically, as described below.

[0129] When the maximum number of ARQ retransmissions in the RLC layer is detected, terminal 20 performs the operation described in (1) or (2) below. Furthermore, existing specifications (TS38.322, TS38.331) describe the operation of terminal 20 when the maximum number of ARQ retransmissions in the RLC layer is detected (as mentioned above). Figure 10 , Figure 11 The underlined part can also be set as follows: in addition to the operation specified in the existing specification, the terminal 20 performs the following operations (1) or (2).

[0130] (1) Terminal 20 deactivates the sensor. As a result of deactivation, the following (2) operation can also be performed.

[0131] (2) Terminal 20 stops transmitting sensing signals. More specifically, terminal 20 releases the wireless resources of the sensing signals that have been set and stops transmitting sensing signals.

[0132] (Effects of Implementation Method 2)

[0133] According to Embodiment 2, when the terminal 20 remains outside the coverage area of ​​the base station 10, the terminal 20 can automatically stop transmitting sensing signals. This reduces unnecessary power consumption of the terminal 20.

[0134] (Change 1)

[0135] The threshold values ​​in Embodiment 1-2 and Embodiment 2-2 can be the same or different. Furthermore, in addition to using the threshold value set by NW in Embodiment 1-2 in Embodiment 1-2, terminal 20 can also use the threshold value set by NW in Embodiment 2-2.

[0136] (Change 2)

[0137] Within Implementation 1, two or all of Implementation 1-1 to 1-3 may also be implemented in combination. For example, by combining Implementation 1-1 to 1-3, even before the timer expires, if an opportunity of Implementation 1-2 or Implementation 1-3 is detected, the terminal 20 may stop monitoring the sensing signal.

[0138] Furthermore, within Embodiment 2, two or all of Embodiments 2-1 to 2-3 can be combined. For example, by combining Embodiments 2-1 to 2-3, even before the timer expires, if the trigger of Embodiment 2-2 or Embodiment 2-3 is detected, the terminal 20 can stop transmitting the sensing signal.

[0139] In addition, any implementation method in Implementation Method 1 and any implementation method in Implementation Method 2 can be combined.

[0140] (Device structure)

[0141] Next, an example of the functional structure of base station 10 and terminal 20 performing the previously described processing and operations will be explained. Furthermore, base station 10 is an example of the NW described earlier.

[0142] <Base Station 10>

[0143] Figure 13 This is a diagram illustrating an example of the functional structure of base station 10. (As shown...) Figure 13 As shown, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130, and a control unit 140. Figure 13 The functional structure shown is only one example. The functional distinctions and names of the functional units can be arbitrary, as long as the operations involved in the embodiments of the present invention can be performed. Furthermore, the transmitting unit 110 and the receiving unit 120 can also be collectively referred to as a communication unit.

[0144] The transmitting unit 110 includes the following functions: generating a signal to be transmitted to the terminal 20 and transmitting the signal wirelessly. The receiving unit 120 includes the following functions: receiving various signals transmitted from the terminal 20 and obtaining, for example, higher-level information from the received signals. Furthermore, the transmitting unit 110 has the following functions: transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, PDCCH-based DCI, PDSCH-based data, etc., to the terminal 20.

[0145] The setting unit 130 stores the preset setting information and various setting information sent to the terminal 20 into the storage device of the setting unit 130, and reads them from the storage device as needed.

[0146] Control unit 140 controls base station 10. Alternatively, the signal transmission-related functional units in control unit 140 can be included in transmitting unit 110, and the signal reception-related functional units in control unit 140 can be included in receiving unit 120. Furthermore, transmitting unit 110 can be referred to as a transmitter, and receiving unit 120 as a receiver.

[0147] Terminal 20

[0148] Figure 14 This is a diagram illustrating an example of the functional structure of terminal 20. (As shown...) Figure 14 As shown, terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. Figure 14 The functional structure shown is only one example. The functional distinctions and names of the functional units can be arbitrary, as long as the operations involved in the embodiments of the present invention can be performed. The transmitting unit 210 and the receiving unit 220 can also be collectively referred to as a communication unit.

[0149] The transmitting unit 210 generates a transmitting signal based on the transmitting data and transmits the transmitting signal wirelessly. The receiving unit 220 receives various signals wirelessly and obtains higher-layer signals from the received physical layer signals. Furthermore, the receiving unit 220 has the following functions: receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, PDCCH-based DCI, PDSCH-based data, etc., transmitted from the base station 10. Alternatively, for example, the transmitting unit 210 can be configured to transmit PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc., to other terminals 20 as part of D2D communication, and the receiving unit 220 can receive PSCCH, PSSCH, PSDCH, or PSBCH from other terminals 20.

[0150] The setting unit 230 stores various setting information received from the base station 10 or other terminals via the receiving unit 220 into its own storage device, and reads it from the storage device as needed. In addition, the setting unit 230 also stores pre-set setting information. The control unit 240 controls the terminal 20.

[0151] This specification discloses at least the matters described in Appendix 1 and 2 below.

[0152] <Postscript 1>

[0153] (Note 1)

[0154] A terminal having:

[0155] The receiving unit receives the sensing signal; and

[0156] The control unit stops monitoring the sensing signal and stops reporting the sensing results when a specific trigger is detected.

[0157] (Note 2)

[0158] The terminal as described in Appendix 1, wherein,

[0159] When the specific opportunity is detected, the control unit discards the retained sensing results.

[0160] (Note 3)

[0161] The terminal as described in Appendix 1, wherein,

[0162] The specific opportunity is the expiration of the timer period.

[0163] (Note 4)

[0164] The terminal as described in Appendix 1, wherein,

[0165] The specific trigger is when the signal reception quality is below a threshold.

[0166] (Note 5)

[0167] The terminal as described in Appendix 1, wherein,

[0168] The specific trigger is when the number of retransmissions in the RLC layer reaches its limit.

[0169] (Note 6)

[0170] A sensing method executed by a terminal, comprising:

[0171] The steps for receiving sensing signals; and

[0172] Upon detecting a specific trigger, the monitoring of the sensing signal is stopped, and the reporting of the sensing results is halted.

[0173] According to any of the structures described above, techniques are provided for reducing useless power consumption in terminals receiving sensed signals. According to Appendix 2, by discarding the retained sensing results, it is possible, for example, to avoid reporting old sensing results when entering coverage area. According to Appendix 3, by using a timer, monitoring can be reliably stopped. According to Appendix 4, by using reception quality, judgment can be made quickly. According to Appendix 5, by using the retransmission count in the RLC layer, link degradation (e.g., falling outside coverage area) can be detected with high accuracy.

[0174] <Appendix 2>

[0175] (Note 1)

[0176] A terminal having:

[0177] The transmitting unit transmits sensing signals; and

[0178] The control unit stops sending the sensing signal when a specific trigger is detected.

[0179] (Note 2)

[0180] The terminal as described in Appendix 1, wherein,

[0181] The specific opportunity is the expiration of the timer period.

[0182] (Note 3)

[0183] The terminal as described in Appendix 1, wherein,

[0184] The specific trigger is when the signal reception quality is below a threshold.

[0185] (Note 4)

[0186] The terminal as described in Appendix 1, wherein,

[0187] The specific trigger is when the number of retransmissions in the RLC layer reaches its limit.

[0188] (Note 5)

[0189] A sensing method executed by a terminal, comprising:

[0190] The steps for sending sensing signals; and

[0191] The step of stopping the transmission of the sensing signal when a specific trigger is detected.

[0192] According to any of the structures described above, techniques are provided for reducing unnecessary power consumption in terminals transmitting sensing signals. According to Appendix 2, the use of a timer enables reliable stopping of sensing signal transmission. According to Appendix 3, the use of reception quality allows for rapid judgment. According to Appendix 4, the use of retransmission counts in the RLC layer enables high-precision detection of link degradation (e.g., becoming out of coverage).

[0193] (Hardware structure)

[0194] The block diagrams used in the description of the above embodiments ( Figure 13 as well as Figure 14 The diagram illustrates functional blocks. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices, or by using multiple devices. Functional blocks can also be implemented by combining software with one or more of the aforementioned devices.

[0195] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, regard as, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, a functional block (structural unit) that implements the sending function is called a transmitting unit or transmitter. Each of these functions is implemented in a way that is not particularly limited, as described above.

[0196] For example, in one embodiment of this disclosure, the base station 10, terminal 20, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 15 This diagram illustrates an example of the hardware structure of a base station 10 and a terminal 20 according to an embodiment of this disclosure. The base station 10 and the terminal 20 described above may also be physically configured as a computer device including a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0197] Additionally, in the following description, the term "device" can be replaced with circuit, device, unit, etc. The hardware structure of base station 10 and terminal 20 can be configured to include one or more of the devices shown in the figure, or it can be configured not to include any of the devices.

[0198] Regarding the various functions in base station 10 and terminal 20, specific software (programs) are read into the hardware such as processor 1001 and storage device 1002, so that processor 1001 performs calculations and controls communication via communication device 1004, or controls at least one of reading and writing data in storage device 1002 and auxiliary storage device 1003, thereby achieving the following:

[0199] The processor 1001 enables the operating system to operate and control the computer as a whole. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic units, registers, etc. For example, the control unit 140 and control unit 240 described above may also be implemented by the processor 1001.

[0200] Furthermore, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage device 1003 and the communication device 1004 to the storage device 1002, and performs various processes accordingly. As a program, a program that causes the computer to perform at least a portion of the operations described in the above embodiments can be used. For example, Figure 13 The control unit 140 of the base station 10 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Furthermore, for example, Figure 14 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Regarding the various processes described above, the case executed by one processor 1001 has been explained, but it is also possible for two or more processors 1001 to execute them simultaneously or sequentially. The processor 1001 can also be implemented using one or more chips. Furthermore, the program can also be transmitted from a network via a telecommunications line.

[0201] Storage device 1002 is a computer-readable recording medium, and may be composed of at least one of ROM (Read-Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. Storage device 1002 may also be referred to as a register, cache, main memory (main storage device), etc. Storage device 1002 is capable of storing executable programs (program code), software modules, etc., for implementing the communication method according to an embodiment of this disclosure.

[0202] The auxiliary storage device 1003 is a computer-readable recording medium, and may be composed of at least one of the following: CD-ROM (Compact Disc ROM) or other optical discs, hard disks, flexible disks, optical discs (e.g., compact discs, digital multifunction discs, Blu-ray discs), smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. The aforementioned storage medium may also be other suitable media such as databases or servers that include at least one of the storage device 1002 and the auxiliary storage device 1003.

[0203] The communication device 1004 is hardware (transmitting and receiving device) used for communication between computers via at least one of a wired network and a wireless network. It is also referred to as a network device, network controller, network interface card (NIC), communication module, etc. To implement at least one of Frequency Division Duplex (FDD) and Time Division Duplex (TDD), the communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. For example, transmitting and receiving antennas, amplifier units, transmitting and receiving units, transmission path interfaces, etc., can also be implemented by the communication device 1004. The transmitting and receiving units can also be implemented by physically or logically separating the transmitting unit and the receiving unit.

[0204] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED light, etc.). Alternatively, input device 1005 and output device 1006 can also be an integrated structure (e.g., touch panel).

[0205] 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 between the devices.

[0206] Furthermore, the base station 10 and the terminal 20 can also 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), and an 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.

[0207] exist Figure 16 The diagram shows a structural example of vehicle 2001. For example... Figure 16 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gear shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. The terminal 20 or base station 10 described in the various methods / implementations of this disclosure can also be applied to a communication device mounted on the vehicle 2001, for example, it can also be applied to the communication module 2013.

[0208] The drive unit 2002 is configured, for example, as an engine, a motor, or a combination of an engine and a motor. The steering unit 2003 is configured to include at least a steering wheel (also called a handlebar) and to steer at least one of the front and rear wheels based on the operation of the steering wheel by the user.

[0209] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals from various sensors 2021 to 2029 of the vehicle 2001 are input into the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an ECU (Electronic Control Unit).

[0210] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front and rear wheels obtained by speed sensor 2022, air pressure signals of the front and rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depress amount signals obtained by accelerator pedal sensor 2029, brake pedal depress amount signals obtained by brake pedal sensor 2026, gear shift lever operation signals obtained by gear shift lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0211] The information service unit 2012 comprises various devices such as a car navigation system, audio system, speakers, television, and radio, used to provide various information such as driving information, traffic information, and entertainment information, as well as one or more ECUs that control these devices. The information service unit 2012 uses information obtained from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The information service unit 2012 may include input devices that accept input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that perform output to external sources (e.g., display, speaker, LED lights, touch panel, etc.).

[0212] The driver assistance system unit 2030 comprises various devices such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-resolution (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, which provide functions to prevent accidents or reduce the driver's workload, as well as one or more ECUs that control these devices. Furthermore, the driver assistance system unit 2030 sends and receives various information via the communication module 2013 to realize driver assistance functions or autonomous driving functions.

[0213] The communication module 2013 can communicate with the microprocessor 2031 and the constituent elements of the vehicle 2001 via a communication port. For example, the communication module 2013 sends and receives data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, front wheel 2007, rear wheel 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 29 in the vehicle 2001 via the communication port 2033.

[0214] The communication module 2013 can be controlled by the microprocessor 2031 of the electronic control unit 2010 and is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located either inside or outside the electronic control unit 2010. The external device can be, for example, a base station, a mobile station, etc. When the terminal 20 or the base station 10 is included in the communication module 2013, the communication module 2013 can perform the operations described in embodiments 1 to 2.

[0215] The communication module 2013 can also wirelessly transmit to an external device at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2028, information obtained based on those signals, and information input from an external source (user) obtained via the information service unit 2012. The electronic control unit 2010, the various sensors 2021-2028, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted via the communication module 2013 can also contain information based on the aforementioned inputs.

[0216] The communication module 2013 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) sent from external devices and displays it to the information service unit 2012 of the vehicle 2001. The information service unit 2012 can also be referred to as an output unit that outputs information (e.g., outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH)). Furthermore, the communication module 2013 stores various information received from external devices in a memory 2032 that can be utilized by the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0217] (Supplement to the implementation method)

[0218] The embodiments of the present invention have been described above, but the disclosed invention is not limited to these 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. Physically, one component may perform the operation of multiple functional units, or multiple components may perform the operation of one functional unit. 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 has been used to describe the base station 10 and the terminal 20, but such a device may also be implemented in hardware, software, or a combination thereof. The software operating via the processor of the base station 10 according to an embodiment of the present invention and the software operating via the processor of the terminal 20 according to an embodiment of the present invention can 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, or other suitable storage media, respectively.

[0219] Furthermore, the notification of information is not limited to the methods / implementations described in this disclosure, and other methods may also be used. For example, the notification of information may also be implemented through 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 combinations thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, it may be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0220] The various methods / implementations described in this disclosure can also be applied to LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal)), FRA (Future Radio Access), NR (New Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE The system may use at least one of the following: 802.16 (WiMAX, a registered trademark), IEEE 802.20, UWB (Ultra-Wideband), Bluetooth (Bluetooth, a registered trademark), systems using other suitable systems, and next-generation systems enhanced, modified, generated, or specified based on these. Furthermore, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G).

[0221] The processing procedures, timing, flowcharts, etc., of the various methods / implementations described in this specification may be rearranged in order, provided there is no contradiction. For example, for the methods described in this disclosure, the elements of various steps are indicated using an illustrative order, but are not limited to the specific order indicated.

[0222] In this specification, certain operations described as being performed by base station 10 may sometimes be performed through its upper node, depending on the circumstances. Clearly, in a network consisting of one or more network nodes including base station 10, various operations for communicating with terminal 20 can be performed by at least one of base station 10 and other network nodes besides base station 10 (e.g., MME or S-GW, but not limited to these). The above example illustrates a single network node other than base station 10, but other network nodes can also be a combination of multiple other network nodes (e.g., MME and S-GW).

[0223] Information or signals described in this disclosure may be output from a higher (or lower) layer to a lower (or higher) layer. They may also be input or output via multiple network nodes.

[0224] The input and output information can be stored in a specific location (e.g., memory) or managed using a management table. The input and output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0225] The determination in this disclosure can be made by a value represented by 1 bit (0 or 1), by a true or false value (Boolean: true or false), or by a comparison of numerical values ​​(e.g., a comparison with a specific value).

[0226] Whether it is called software, firmware, middleware, microcode, hardware description language, or any other name, software should be broadly interpreted as instructions, instruction sets, code, code segments, program code, program, subprogram, software module, application, software application, software package, routine, subroutine, object, executable file, execution thread, process, function, etc.

[0227] Furthermore, software, instructions, and information can also be sent and received via a transmission medium. For example, when software is sent from a website, 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 a transmission medium.

[0228] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be mentioned throughout the above description, can also be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination thereof.

[0229] Furthermore, the terms described in this disclosure and those necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of the channel and the 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 a carrier frequency, cell, frequency carrier, etc.

[0230] The terms “system” and “network” used in this disclosure are interchangeable.

[0231] Furthermore, the information, parameters, etc., described in this disclosure can be represented by absolute values, relative values ​​with respect to a specific value, or other corresponding information. For example, wireless resources can also be indicated by a specific index.

[0232] The names used for the parameters described above are not limiting names in any respect. Furthermore, the mathematical 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 any suitable name; therefore, the various names assigned to these various channels and information elements are not limiting names in any respect.

[0233] In this disclosure, the terms "base station (BS)," "wireless base station," "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. There are also instances where terms such as macro cell, small cell, femtocell, and picocell are used to refer to base stations.

[0234] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its overall coverage area can be divided into several smaller areas, each of which can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head (RRH))). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​the base station and at least one of the base station subsystems providing communication services within that coverage area.

[0235] In this disclosure, the base station sends information to the terminal, which can also be rewritten with the base station instructing the terminal to perform information-based control and operation.

[0236] In this disclosure, the terms “Mobile Station (MS),” “User Terminal (user terminal),” “User Equipment (UE),” and “Terminal” are used interchangeably.

[0237] There are also instances where those skilled in the art use terms such as 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, hand set, user agent, mobile client, client, or several other appropriate terms to refer to a mobile station.

[0238] At least one of the base station and the mobile station can also be referred to as a transmitting device, a receiving device, a communication device, etc. Furthermore, at least one of the base station and the mobile station can also be a device mounted on a moving object, the moving object itself, etc. The moving object refers to a movable object whose speed of movement is arbitrary. This also includes situations where the moving object is stationary. Examples of moving objects include vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, trailers, rickshaws, ships (boats and other watercraft), airplanes, rockets, artificial satellites, drones (registered trademark), multi-rotor aircraft, quadcopters, balloons, and objects mounted on them, and are not limited to these. Furthermore, the moving object can also be a moving object that moves autonomously based on operating commands. Moreover, the moving object can be a means of transportation (e.g., vehicles, airplanes, etc.), a moving object that moves unmanned (e.g., drones, autonomous vehicles, etc.), or a robot (humanized or unmanned). In addition, at least one of the base station and the mobile station also includes a device that is not necessarily mobile during the communication operation. For example, at least one of the base station and the mobile station can also be an IoT (Internet of Things) device such as a sensor.

[0239] Furthermore, the base station in this disclosure can also be rewritten as a user terminal. For example, various methods / implementations of this disclosure can be applied to a structure that replaces the communication between the base station and the user terminal with communication between multiple terminals 20 (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, it can also be configured such that the terminal 20 has the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can also be rewritten as terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be rewritten as side channel.

[0240] Similarly, the user terminal in this disclosure can also be rewritten as a base station. In this case, it can also be configured such that the base station has the functions of the user terminal described above.

[0241] The terms "determining" and "determining" as used in this disclosure encompass a wide variety of actions. For example, "determining" and "determining" can include judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining. Furthermore, "determining" and "determining" can include receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory). Additionally, "determining" and "determining" can include resolving, selecting, choosing, establishing, and comparing. In other words, "determining" and "determining" can encompass situations where certain operations are considered "determining" and "determining." In addition, "judgment (decision)" can also be rewritten as "assuming", "expecting", "considering", etc.

[0242] The terms “connected,” “coupled,” or all variations thereof, refer to all direct or indirect connections or combinations between two or more elements, and can include cases where there is one or more intermediate elements between two mutually “connected” or “coupled” elements. The connection or combination between elements can be physical, logical, or a combination thereof. For example, “connected” can also be rewritten as “access.” In the context of this disclosure, it is possible to consider two elements being mutually “connected” or “coupled” using at least one of one or more wires, cables, or printed electrical connections, and, as several non-limiting and non-exclusive examples, being mutually “connected” or “coupled” using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, or light (both visible and invisible) region.

[0243] The reference signal can also be simply referred to as RS (Reference Signal), or it can be called a pilot depending on the standard applied.

[0244] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise specified. In other words, the word "based on" means both "based on only" and "based on at least".

[0245] Any reference to an element using the designations "first," "second," etc., as used in this disclosure does not comprehensively limit the quantity 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 may be used, or that the first element must take precedence over the second element in some form.

[0246] Alternatively, the term "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0247] When the terms "include," "including," and variations thereof are used in this disclosure, these terms, like the term "comprising," mean inclusive. Furthermore, the term "or" as used in this disclosure does not mean XOR.

[0248] A radio frame can also consist of one or more frames in the time domain. In the time domain, one or more frames can also be referred to as subframes. A subframe can be further composed 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).

[0249] A parameter set can also 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 processes performed by the transmitter and receiver in the frequency domain, and specific windowing processes performed by the transmitter and receiver in the time domain.

[0250] A time slot can also be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.) in the time domain. A time slot can also be a time unit based on a set of parameters.

[0251] A time slot can also contain multiple mini-time slots. Each mini-time slot can also 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 also consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units longer than a mini-time slot can also be called PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using mini-time slots can also be called PDSCH (or PUSCH) mapping type B.

[0252] 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 other names.

[0253] For example, a subframe can also be called a Transmission Time Interval (TTI), multiple consecutive subframes can be called a TTI, 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 in existing LTE (1ms), a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. Furthermore, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe. Additionally, a time slot can also be called a unit of time. The unit of time can also vary for each cell depending on the parameter set.

[0254] 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 each terminal 20 by allocating radio resources (frequency bandwidth, transmission power, etc., available to each terminal 20) in units of TTI. However, the definition of TTI is not limited to this.

[0255] A 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 unit of processing such as scheduling and link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) mapping transmission blocks, code blocks, codewords, etc., can be shorter than that TTI.

[0256] Additionally, where a time slot or a 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 also be the minimum time unit for scheduling. Furthermore, the number of time slots (mini-time slots) constituting the minimum time unit of the schedule can also be controlled.

[0257] A TTI with a duration of 1ms can also be referred to as a normal TTI (TTI in LTE Rel.8-12), a standard TTI, a long TTI, a normal subframe, a standard subframe, a long subframe, a time slot, etc. A TTI shorter than a normal TTI can also be referred to as a shortened TTI, a short TTI, a partial TTI (partial or fractional TTI), a shortened subframe, a short subframe, a mini time slot, a sub-time slot, a time slot, etc.

[0258] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can also be rewritten as a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can also be rewritten as a TTI with a duration of less than a long TTI but more than 1 ms.

[0259] A resource block (RB) is a unit of resource allocation in both the time and frequency domains, and can also contain one or more consecutive subcarriers in the frequency domain. The number of subcarriers in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers in an RB can also be determined based on the parameter set.

[0260] Furthermore, the time domain of an RB can also contain one or more symbols, or it can be the length of a time slot, a mini-time slot, a subframe, or a TTI. A TTI, a subframe, etc., can also be composed of one or more resource blocks.

[0261] In addition, one or more RBs can also be referred to as Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0262] Furthermore, a resource block can also consist of one or more resource elements (REs). For example, an RE can also be a radio resource area consisting of a subcarrier and a symbol.

[0263] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can also represent a subset of contiguous common resource blocks (RBs) used for a parameter set within a carrier. Here, common RBs can also be determined by indexing RBs based on a common reference point of that carrier. PRBs can also be defined within a BWP and assigned numbers within that BWP.

[0264] A BWP can also include a UL BWP and a DL BWP. One or more BWPs can also be set for terminal 20 within a single carrier.

[0265] At least one of the configured BWPs may be active, and terminal 20 may not intend to transmit or receive specific signals / channels outside of the active BWPs. Additionally, terms such as "cell" and "carrier" in this disclosure may be replaced with "BWP".

[0266] The structures described above, such as radio frames, subframes, time slots, mini-time slots, and symbols, 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.

[0267] In this disclosure, for example, in cases where articles are added through translation, such as a, an, and the in English, the disclosure may also include cases where the noun following these articles is in a plural form.

[0268] In this disclosure, the term "A is different from B" can also mean "A and B are different from each other". Additionally, this term can also mean "A and B are different from C respectively". Terms such as "separate" and "combined" can also be interpreted in the same way as "different".

[0269] The various methods / implementations described in this disclosure can be used individually, in combination, or switched during execution. Furthermore, notification of specific information (e.g., a "It is X" notification) is not limited to explicit notification; it can also be implicit (e.g., by not notifying the user of that specific information).

[0270] The present disclosure has been described in detail above, but it should 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 in modified and altered ways without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description in this disclosure is for illustrative purposes only and is not intended to be restrictive in any way.

[0271] Explanation of reference numerals in the attached figures

[0272] 10 base stations

[0273] 110 Transmitting Unit

[0274] 120 receiving unit

[0275] 130 Setting Unit

[0276] 140 Control Unit

[0277] 20 terminals

[0278] 210 Transmitting Unit

[0279] 220 Receiving Unit

[0280] 230 Setting Unit

[0281] 240 Control Unit

[0282] 1001 processor

[0283] 1002 Storage device

[0284] 1003 Auxiliary storage device

[0285] 1004 Communication device

[0286] 1005 Input Device

[0287] 1006 Output Device

[0288] Vehicle 2001

[0289] 2002 Drive Unit

[0290] 2003 Steering Unit

[0291] 2004 Accelerator Pedal

[0292] 2005 Brake Pedal

[0293] 2006 gear shift lever

[0294] 2007 front wheel

[0295] 2008 rear wheel

[0296] 2009 axle

[0297] 2010 Electronic Control Unit

[0298] 2012 Information Service Unit

[0299] 2013 Communication Module

[0300] 2021 Current Sensor

[0301] 2022 Speed ​​Sensor

[0302] 2023 Barometric Pressure Sensor

[0303] 2024 vehicle speed sensor

[0304] 2025 Accelerometer

[0305] 2026 Brake Pedal Sensor

[0306] 2027 Shift Lever Sensor

[0307] 2028 Object Detection Sensor

[0308] 2029 Accelerator Pedal Sensor

[0309] 2030 Driver Assistance System Unit

[0310] 2031 microprocessor

[0311] 2032 Memory (ROM, RAM)

[0312] 2033 Communication port (IO port).

Claims

1. A terminal, comprising: The transmitting unit transmits sensing signals; and The control unit stops sending the sensing signal when a specific trigger is detected.

2. The terminal as described in claim 1, wherein, The specific opportunity is the expiration of the timer period.

3. The terminal as described in claim 1, wherein, The specific trigger is when the signal reception quality is below a threshold.

4. The terminal as described in claim 1, wherein, The specific trigger is when the number of retransmissions in the RLC layer reaches its limit.

5. A sensing method executed by a terminal, comprising: The steps for sending sensing signals; and The step of stopping the transmission of the sensing signal when a specific trigger is detected.

Images