Terminals and base stations

Abstract

This terminal comprises a reception unit for receiving information that pertains to the adjustment of a cycle that has an active period for receiving a signal and a sleep period for not receiving the signal, and a control unit for adjusting the active period on the basis of the information and controlling reception of the signal in the adjusted active period.

Description

Technical Field

[0001] This disclosure relates to a terminal and a base station.

Background Art

[0002] The 3rd Generation Partnership Project (3GPP) has standardized the 5th generation mobile communication system (also referred to as 5G, New Radio (NR), or Next Generation (NG)), and is further promoting the standardization of the next generation, such as Beyond 5G, 5G Evolution, or 6G.

[0003] In 5G, technologies that meet requirements such as a large-capacity system, high data transmission speed, low latency, simultaneous connection of a large number of terminals, low cost, and power saving are being studied (for example, Non-Patent Document 1).

[0004] Regarding power saving, 3GPP has introduced an intermittent reception method for a terminal to receive signals with low power consumption. Note that power may be read as energy, and power saving may be read as power reduction or the like.

Prior Art Documents

Non-Patent Documents

[0005]

Non-Patent Document 1

Non-Patent Document 2

Summary of the Invention

[0006] In intermittent reception methods, there is room for further consideration regarding how to properly receive signals.

[0007] One aspect of this disclosure provides a terminal and a base station capable of appropriately receiving signals in an intermittent reception method.

[0008] A terminal according to one aspect of the present disclosure includes a receiving unit that receives information regarding the adjustment of a cycle having an active period for receiving a signal and a sleep period for not receiving the signal, and a control unit that adjusts the active period based on the information and controls the reception of the signal during the adjusted active period.

[0009] A base station according to one aspect of the present disclosure includes a control unit that generates information relating to the adjustment of a period having an active period in which a terminal receives a signal and a sleep period in which the terminal does not receive the signal, and a transmission unit that transmits the information. [Brief explanation of the drawing]

[0010] [Figure 1] This figure shows an example of a wireless communication system according to an embodiment of the present disclosure. [Figure 2] This figure shows an example of a frequency range used in a wireless communication system according to an embodiment of the present disclosure. [Figure 3] This figure shows an example of the configuration of wireless frames, subframes, and slots used in a wireless communication system according to an embodiment of the present disclosure. [Figure 4] This is a diagram illustrating CDRX in 3GPP Release 15. [Figure 5] This is a diagram illustrating WUS in 3GPP Release 16. [Figure 6] This figure shows an example of the relationship between the CDRX reception period and the timing of XR traffic arrival. [Figure 7] This figure shows the first example of a notification method. [Figure 8]A diagram showing a second example of the notification method. [Figure 9] A diagram showing a third example of the notification method. [Figure 10] A diagram showing a fourth example of the notification method. [Figure 11] A diagram showing a fifth example of the notification method. [Figure 12] A diagram showing a first example of the application of adaptation. [Figure 13] A diagram showing a second example of the application of adaptation. [Figure 14] A diagram showing a third example of the application of adaptation. [Figure 15] A diagram showing a fourth example of the application of adaptation. [Figure 16] A diagram showing a fifth example of the application of adaptation. [Figure 17] A block diagram showing an example of the configuration of a base station according to an embodiment of the present disclosure. [Figure 18] A block diagram showing an example of the configuration of a terminal according to an embodiment of the present disclosure. [Figure 19] A diagram showing an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. [Figure 20] A diagram showing an example of the configuration of a vehicle according to an embodiment of the present disclosure.

Embodiments for Carrying Out the Invention

[0011] Hereinafter, embodiments according to an aspect of the present disclosure will be described with reference to the drawings.

[0012] (Embodiment) <Wireless Communication System> FIG. 1 is a diagram showing an example of a wireless communication system 10 according to an embodiment of the present disclosure. The wireless communication system 10 is a wireless communication system compliant with 5G NR, and includes a Next Generation-Radio Access Network 20 (hereinafter, also referred to as NG-RAN 20) and a terminal 200 (hereinafter, also referred to as UE (User Equipment) 200).

[0013] Note that the wireless communication system 10 may be a wireless communication system compliant with a system called Beyond 5G, 5G Evolution, or 6G.

[0014] NG-RAN 20 includes a base station 100A (hereinafter, also referred to as gNB 100A) and a base station 100B (hereinafter, also referred to as gNB 100B). When it is not necessary to distinguish each of gNB 100A, gNB 100B, etc., they are collectively referred to as gNB or base station 100. Also, the number of gNBs and UEs is not limited to the example shown in FIG. 1.

[0015] NG-RAN 20 actually includes a plurality of NG-RAN nodes, specifically, gNBs (or ng-eNBs), and is connected to a core network (5GC, not shown) compliant with 5G. Note that NG-RAN 20 and 5GC may simply be expressed as "network". Also, hereinafter, gNB may be read as network (NW).

[0016] gNB100A and gNB100B are, for example, 5G-compliant base stations that perform 5G-compliant wireless communication with the UE200. gNB100A, gNB100B, and UE200 may support MIMO (Multiple-Input Multiple-Output), which generates a more directional beam BM by controlling the wireless signals transmitted from multiple antenna elements; Carrier Aggregation (CA), which uses multiple component carriers (CC); and Dual Connectivity (DC), which enables communication between the UE and each of the two NG-RAN nodes.

[0017] Furthermore, the wireless communication system 10 may support multiple frequency ranges (FRs). Figure 2 shows an example of an FR used in the wireless communication system 10. As shown in Figure 2, the wireless communication system 10 may support FR1 and FR2. The frequency bands of each FR are, for example, as follows. FR1: 410MHz~7.125GHz FR2: 24.25GHz~52.6GHz

[0018] In FR1, a subcarrier spacing (SCS) of 15kHz, 30kHz, or 60kHz may be used, and a bandwidth (BW) of 5 to 100MHz may be used. FR2 is a higher frequency than FR1, and an SCS of 60kHz or 120kHz (240kHz may be included) may be used, and a bandwidth (BW) of 50 to 400MHz may be used.

[0019] Note that SCS may also be interpreted as numerology. Numerology is defined in 3GPP TS 38.300 and corresponds to a single subcarrier interval in the frequency domain.

[0020] Furthermore, the wireless communication system 10 may support higher frequency bands than the FR2 frequency band. Specifically, the wireless communication system 10 may support frequency bands exceeding 52.6 GHz and up to 114.25 GHz. Such high frequency bands may be conveniently referred to as "FR2x". When using a bandwidth exceeding 52.6 GHz, a CP-OFDM (Cyclic Prefix - Orthogonal Frequency Division Multiplexing) / DFT-S-OFDM (Discrete Fourier Transform - Spread - Orthogonal Frequency Division Multiplexing) with a larger SCS may be applied.

[0021] Figure 3 shows an example of the configuration of wireless frames (system frames), subframes, and slots used in the wireless communication system 10. As shown in Figure 3, one slot consists of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period). However, the SCS is not limited to the interval (frequency) shown in Figure 3. For example, 480 kHz, 960 kHz, etc. may be used as the SCS.

[0022] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 (for example, it could be 28 or 56 symbols, etc.). In addition, the number of slots per subframe may differ depending on the SCS.

[0023] The time direction (t) shown in Figure 3 may also be called the time domain, symbol period, or symbol time. The frequency direction may also be called the frequency domain, resource block, subcarrier, bandwidth part (BWP), etc.

[0024] The gNB100 transmits control information, configuration information, etc., to the UE200 as a downlink (DL) signal to enable power saving for the gNB100.

[0025] Furthermore, for example, the gNB100 receives control information, data signals, and information regarding the processing capabilities of the UE200 (terminal capability information; e.g., UE capability) from the UE200 as uplink (UL) signals to enable power saving for the gNB100.

[0026] The channels used to transmit DL signals include, for example, a data channel and a control channel. For example, the data channel may include a Physical Downlink Shared Channel (PDSCH), and the control channel may include a Physical Downlink Control Channel (PDCCH). For example, gNB100 transmits control information to UE200 using the PDCCH and transmits DL data signals using the PDSCH. Note that PDSCH is an example of a Downlink Shared Channel, and PDCCH is an example of a Downlink Control Channel. Note that PDCCH may be interpreted as Downlink Control Information (DCI), control information, etc., transmitted in the PDCCH.

[0027] The reference signals included in the DL signal may include, for example, at least one of the following: DMRS (Demodulation Reference Signal), PTRS (Phase Tracking Reference Signal), CSI-RS (Channel State Information - Reference Signal), SRS (Sounding Reference Signal), and PRS (Positioning Reference Signal) for position information. For example, reference signals such as DMRS and PTRS are used to demodulate the DL data signal and are transmitted using PDSCH.

[0028] The UE200 is a communication device equipped with wireless communication capabilities, such as smartphones, mobile phones, tablets, wearable devices, and M2M (Machine-to-Machine) communication modules.

[0029] The UE200 utilizes various communication services provided by the wireless communication system 10 by receiving control signals or data signals from the gNB100 via DL and transmitting control signals or data signals to the gNB100 via UL. The UE200 also receives various reference signals transmitted from the gNB100 and performs propagation path quality measurements based on the reception results of said reference signals.

[0030] For example, the UE200 receives control information, setting information, etc., from the gNB100 as DL signals to enable power saving for the gNB100.

[0031] Furthermore, for example, the UE200 transmits control information, data signals, and terminal capability information of the UE200 to the gNB100 as UL signals to enable power saving for the gNB100.

[0032] The channels used to transmit UL signals include, for example, data channels and control channels. For example, the data channel may include a Physical Uplink Shared Channel (PUSCH), and the control channel may include a Physical Uplink Control Channel (PUCCH). For example, UE200 transmits control information using PUCCH and transmits UL data signals using PUSCH. Note that PUSCH is an example of an uplink shared channel, and PUCCH is an example of an uplink control channel. Shared channels may also be called data channels. Note that PUSCH or PUCCH may be interpreted as Uplink Control Information (UCI), control information, etc., transmitted in PUSCH or PUCCH.

[0033] The reference signals included in the UL signal may include, for example, at least one of DMRS, PTRS, CSI-RS, SRSRS, and PRS for location information. For example, reference signals such as DMRS and PTRS are used to demodulate the UL data signal and are transmitted using PUSCH.

[0034] <Power saving for the device> Next, as an example of achieving power saving in terminals, we will explain discontinuous reception (DRX) and connected mode DRX (CDRX) in conventional terminals.

[0035] Figure 4 is a diagram illustrating CDRX in 3GPP Release 15. In CDRX operation in 3GPP Release 15, the terminal is active during the DRX on-duration of the DRX cycle and monitors the PDCCH during the DRX on-duration.

[0036] Figure 5 is a diagram illustrating WUS in 3GPP Release 16. In 3GPP Release 16, PDCCH-based WUS can instruct one or more terminals whether to monitor PDCCH within the next DRX-on period.

[0037] DCI format 2_6, in which the CRC (Cyclic Redundancy Check) is scrambled by PS-RNTI (Power Saving - Radio Network Temporary Identifier), is used as a PDCCH-based WUS and is also called DCP (DCI with CRC scrambled by PS-RNTI).

[0038] The WUS monitoring occasion is set by an offset from the DRX-on period based on the terminal's capabilities. If the WUS indicates "Not Active" (i.e., there is no data being sent or received by the terminal), the terminal can skip monitoring during the DRX-on period and immediately enter sleep mode.

[0039] Furthermore, a default terminal operation may be set in case the PDCCH-based WUS is not detected due to, for example, a detection error.

[0040] DCI format 2_6 includes a 1-bit wake-up indicator (information) that indicates "active" or "inactive". Note that "active" may be interpreted as enabled, activated, or started, and "inactive" may be interpreted as disabled, disabled, or slept.

[0041] Traditionally, power saving in terminals has been achieved in the following ways, for example.

[0042] <Current status of discussions on energy conservation> Next, I will explain the discussion status regarding power saving in 3GPP Release 18. Release 18 is considering enhancements to reduce terminal power consumption considering XR (Extended Reality) traffic. For example, reducing terminal power consumption considering XR traffic requires addressing the characteristics of XR services. These characteristics of XR services include the periodicity of XR traffic, the occurrence of multiple flows, the occurrence of jitter, latency, and reliability. XR (Extended Reality) is a general term for technologies such as VR (Virtual Reality), AR (Augmented Reality), and MR (Mixed Reality).

[0043] XR traffic is expected to have a characteristic of arriving periodically according to the FPS (frames per second).

[0044] As a method for intermittently receiving periodically arriving XR traffic, the use of the CDRX (Connected Mode Discontinuous Reception) function described above can be considered. Note that the DRX cycle and DRX on duration shown in Figure 5 can be considered the same as the CDRX cycle and CDRX on duration described below.

[0045] The following challenges exist when using CDRX functionality to intermittently receive XR traffic:

[0046] Figure 6 shows an example of the relationship between the reception period of the CDRX function and the arrival timing of XR traffic. Figure 6 shows the sleep period and active period of the CDRX function and the arrival timing of the XR traffic. In Figure 6, an example is shown where the period of the CDRX function is 20 ms and the arrival period of the XR traffic is 16.67 ms.

[0047] While the arrival cycles of XR traffic are non-integer values ​​such as 6.67ms, 8.33ms, and 16.67ms, the cycles in the CDRX function are specified to be integer values ​​such as 10ms and 20ms. Therefore, the arrival cycles of XR traffic and the cycles in the CDRX function are not aligned. As a result, as shown in Figure 6, XR traffic may not arrive during the activation period of the CDRX function's cycle, and the terminal may not be able to receive XR traffic.

[0048] In the following, the period in the CDRX function will be referred to as the CDRX cycle.

[0049] Jitter is expected to occur in XR traffic. Jitter is a small temporal fluctuation relative to the arrival timing of the original XR traffic. For example, for an XR traffic arrival period of 16.67 ms, a maximum of [-4, 4] ms of jitter is expected.

[0050] For example, jitter can increase the likelihood of XR traffic arriving outside of the CDRX on-duration period. If XR traffic is more likely to arrive outside of the CDRX on-duration period, the time required to receive the XR traffic increases, resulting in increased reception delay. For instance, if XR traffic arrives after the on-duration period, there is a higher chance that it will not be received until the next CDRX cycle, increasing reception delay.

[0051] For example, if the CDRX on-duration period is increased to avoid XR traffic arriving outside of the CDRX on-duration period due to jitter, the active time increases, and the terminal's power consumption increases.

[0052] On the other hand, if the CDRX on-duration period is shortened to suppress the increase in terminal power consumption, the likelihood of XR traffic arriving outside the CDRX on-duration period increases, further increasing reception delays.

[0053] As mentioned above, situations where the periods are not aligned, and / or where jitter occurs, can cause XR traffic to arrive outside the CDRX on-duration period. In other words, a discrepancy may occur between the timing (or duration) when the signal transmitted by the base station arrives and the timing (or duration) when the terminal receives the signal, which may prevent the terminal from properly receiving the signal transmitted from the base station.

[0054] In this embodiment, we propose a method for appropriately adapting the CDRX on duration (or CDRX active period) to avoid XR traffic arriving outside the CDRX on duration period. Here, adapting the CDRX on duration (or CDRX active period) may correspond to, for example, adapting the CDRX on duration (or CDRX active period) so that the time when XR traffic arrives is included within the CDRX on duration (or CDRX active period). Hereafter, adapting the CDRX on duration (or CDRX active period) will be referred to as adaptation of the CDRX on duration (or CDRX active period).

[0055] In the following explanation, the term "adaptation" in relation to CDRX on duration may be abbreviated as "adaptation".

[0056] Note that "CDRX on duration" may be interpreted as "CDRX active period." Furthermore, "CDRX on duration" may be interchangeable with other expressions such as "on period," "active period," or "startup period." Hereafter, "CDRX on duration" will be abbreviated as "on period" as appropriate. Also, in a CDRX cycle, any period different from the "CDRX on duration" may be referred to as the "sleep period." The "on period" is an example of a period during which the terminal can receive signals, while the "sleep period" is an example of a period during which the terminal cannot receive signals. Note that there may be signals that the terminal can receive during the sleep period.

[0057] Proposal 1 describes a method for notifying or specifying information regarding CDRX on duration adaptations. For example, in Proposal 1, the terminal may be notified of the CDRX on duration adaptation, or it may be specified in advance. Here, the base station (or network side) may notify the terminal of the adaptation. Upon receiving the notification of the adaptation, the terminal applies the CDRX on duration adaptation. Alternatively, the terminal applies the CDRX on duration adaptation according to the specified method.

[0058] Note that notifications regarding adaptation may be replaced with notifications of information related to adaptation. The information notified to the terminal may be included, for example, in the signal transmitted from the base station to the terminal. Notification of information to the terminal may be equivalent to the reception of information at the terminal.

[0059] Furthermore, "regulations" may refer to something that is determined by specifications, rules, etc., or the equivalent of the content that is determined by such specifications, rules, etc. Alternatively, regulations may refer to something that is implemented in a communication device (e.g., a base station or a terminal), or the equivalent of the function that is implemented therein. Furthermore, for example, the determination of a certain content does not necessarily have to be accompanied by notification of that content, or it may be accompanied by notification of that content. Also, for example, the notification of a certain content may be equivalent to the content being determined and then the determined content being notified, or the information may not be determined at all.

[0060] Proposals 2-4 describe the elements to be adapted as adaptations to CDRX on duration. The elements to be adapted may be elements (or parameters) that are adjusted.

[0061] Proposal 2 provides an example of an adaptation related to CDRX on duration, specifically an example where an adaptation of the CDRX on duration start position is notified or specified. In other words, Proposal 2 provides an example where the parameter to be adjusted is the CDRX on duration start position.

[0062] Proposal 3 provides an example of an adaptation to CDRX on duration, specifically an example of an adaptation of the duration of CDRX on duration being notified or specified. In other words, Proposal 3 provides an example where the parameter to be adjusted is the duration of CDRX on duration.

[0063] Proposal 4 provides an example of an adaptation to CDRX on duration, specifically an example of an adaptation to CDRX cycle length being notified or specified. In other words, Proposal 4 provides an example where the parameter to be adjusted is the CDRX cycle length.

[0064] Note that "adaptation" may be replaced with other terms such as "control," "adjustment," "management," "change," "arrangement," or "rearrangement." For example, "adaptation related to CDRX on duration" may be replaced with "control related to CDRX on duration" or "adjustment related to CDRX on duration."

[0065] The following explains each proposal.

[0066] <Proposal 1> In Proposal 1, the terminal may be notified of or specified an adaptation regarding CDRX on duration.

[0067] The method of notifying about CDRX on duration adaptations is not particularly limited. For example, CDRX on duration adaptations may be notified by at least one of the following: DCI (downlink control information), information exchanged at the MAC (medium access control) layer (e.g., MAC CE (control element)), and information signaled by RRC (radio resource control). Information signaled by RRC may be referred to as RRC information elements or as information notified by RRC signaling.

[0068] Notification of an adaptation regarding CDRX on duration may be equivalent to notification of information regarding the adaptation. The information regarding the adaptation may include at least one of the following: information indicating whether or not the adaptation is applied, information indicating the location of the CDRX on duration to which the adaptation is applied, and information indicating the elements to be adapted.

[0069] Furthermore, conditions and / or procedures for performing adaptations related to CDRX on duration may be specified. These conditions and / or procedures for performing adaptations related to CDRX on duration may be conditions and / or procedures for determining whether or not to perform an adaptation. Alternatively, these conditions and / or procedures for performing adaptations related to CDRX on duration may be conditions and / or procedures for determining the location of the CDRX on duration to which the adaptation will be applied when information regarding the adaptation is notified. These conditions and / or procedures for performing adaptations related to CDRX on duration may also be conditions and / or procedures for determining (or adjusting) the elements (parameters) to be adapted.

[0070] Information regarding adaptation may be communicated using multiple methods. For example, some information regarding adaptation may be communicated by DCI, and the remaining part by RRC signaling. Alternatively, some information regarding adaptation may be predetermined, and the remaining part may be communicated by DCI.

[0071] <Proposal 1-1> Proposal 1-1 describes two examples of notification methods.

[0072] Figure 7 shows the first example of a notification method. Two examples, Example 1 and Example 2, are shown in Figure 7. The horizontal axis in each example in Figure 7 represents the time axis. Each example in Figure 7 shows that the CDRX on duration and CDRX sleep period occur periodically.

[0073] In the following, CDRX on duration may be abbreviated as "on period," and CDRX sleep period may be abbreviated as "sleep period."

[0074] In each example in Figure 7, each rectangle corresponds to a time interval having a certain time width. Hereafter, each rectangle may be referred to as a "unit interval." However, a unit interval does not have to correspond to a specific time interval defined by specifications, etc. For example, a unit interval in each example in Figure 7 does not have to correspond to a specific time interval such as one symbol, one slot, and one frame.

[0075] One unit interval may correspond to a specific time interval defined by specifications, etc., multiple unit intervals may correspond to one specific time interval, or a unit interval of a specific first number may correspond to a time interval of a specific second number. The first number may be different from the second number.

[0076] Furthermore, while each example in Figure 7 shows an example in which one cycle (CDRX cycle) includes an on period having two unit intervals and a sleep period having the length of three unit intervals, the disclosure is not limited thereto.

[0077] Furthermore, for the sake of explanation, each example in Figure 7 is shown with an identification number to identify the ON period. Note that while identification numbers are shown in Figure 7 for the sake of explanation, an identification number does not need to be set for each ON period when the terminal uses the CDRX function for reception control. Also, the identification numbers in each example in Figure 7 are based on the relative positions of the ON periods and do not necessarily have to be numbers that indicate absolute positions. For example, in each example in Figure 7, the ON period labeled "#1" does not necessarily have to indicate the earliest ON period in the terminal.

[0078] In the following, any ON period marked with "#1" will be referred to as ON Period #1.

[0079] In Example 1 of Figure 7, information regarding adaptation is notified during ON period #1. In Example 1 of Figure 7, the terminal receives information regarding adaptation during ON period #1 and applies the adaptation during ON period #2. Here, applying the adaptation during ON period #2 may correspond to adjusting parameters related to ON period #2. For example, parameters related to ON period #2 may be at least one of the start position, end position, and length of ON period #2.

[0080] The information regarding the received adaptation may be included in the control channel (e.g., PDCCH), the data channel (e.g., PDSCH), or any other channel. Furthermore, the information regarding the received adaptation may be included in at least one of the following: DCI, information exchanged at the MAC layer (e.g., MAC CE), and information signaled at the RRC.

[0081] In Example 2 of Figure 7, information regarding adaptation is notified during the sleep period between ON period #1 and ON period #2. In Example 2 of Figure 7, information regarding adaptation is notified via DCI format 2_6 (e.g., a wake-up signal) that the terminal can receive during the sleep period. In Example 2 of Figure 7, the terminal receives information regarding adaptation via DCI format 2_6 and applies the adaptation during ON period #2.

[0082] Note that while Figure 7, Example 2 shows an example where adaptation information is notified by DCI format 2_6, this disclosure is not limited thereto. For example, adaptation information may be notified by at least one of the notification methods in DCI, MAC, and RRC. Adaptation information may be notified during the ON period, as shown in Figure 7, Example 1, or during the sleep period, as shown in Figure 7, Example 2. Alternatively, adaptation information may be notified before the operation of the CDRX function (e.g., before intermittent reception).

[0083] In Proposal 1-1, the terminal applies the adaptation during the on-period immediately following the reception of the adaptation information (on-period #2 in Figure 7). This allows the terminal to promptly perform appropriate reception processing during the on-period in which the adaptation is applied. Furthermore, because the signal can be received quickly, reception delays can be avoided.

[0084] <Proposal 1-2> Proposal 1-1 described above shows an example of applying the adaptation during the ON period immediately following the timing of receiving information about the adaptation (ON period #2 in Figure 7), but this disclosure is not limited thereto. Proposal 1-2 shows the CDRX immediately following notification of information about the adaptation Instead of being notified about CDRX on duration, information regarding future CDRX on-duration adaptations may be provided.

[0085] Figure 8 shows a second example of a notification method. Similar to Figure 7, Figure 8 shows two examples, Example 1 and Example 2. The horizontal axis in each example in Figure 8 represents the time axis.

[0086] Each example in Figure 8, similar to Figure 7, shows an example in which one cycle (CDRX cycle) includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0087] Figure 7 shows an example where the adaptation is applied during On Period #2, which corresponds to the on-time period immediately following notification of the adaptation, whereas Figure 8 shows an example where the adaptation is applied not during On Period #2, which corresponds to the next on-time period, On Period #3, which corresponds to the on-time period immediately following notification of the adaptation.

[0088] In Example 1 of Figure 8, information regarding adaptation is notified during ON period #1. In Example 1 of Figure 8, the terminal receives information regarding adaptation during ON period #1 and applies the adaptation during ON period #3.

[0089] In Example 2 of Figure 8, information regarding the adaptation is notified during the sleep period between ON period #1 and ON period #2. In Example 2 of Figure 8, information regarding the adaptation is notified via DCI format 2_6 (e.g., a wake-up signal) that the terminal can receive during the sleep period. In Example 2 of Figure 8, the terminal receives the information regarding the adaptation via DCI format 2_6 and applies the adaptation during ON period #3.

[0090] The specific on-season in which the adaptation applies may be notified or specified. Furthermore, in the following, information indicating which on-season in which the adaptation applies may be referred to as "information regarding the on-season in which the adaptation applies." Information regarding the on-season in which the adaptation applies may be included in the information regarding the adaptation, or it may be notified separately from the information regarding the adaptation.

[0091] Information regarding the on-period to which the adaptation is applied may or may not be communicated to the terminal. In each example in Figure 8, information indicating that the on-period to which the adaptation is applied is on-period #3 may or may not be communicated to the terminal.

[0092] If information regarding the on-time period for which the adaptation will be applied is provided, the device may determine the on-time period for which the adaptation will be applied based on that information.

[0093] If information regarding the on-time period to which the adaptation applies is not provided, the terminal may determine the on-time period to which the adaptation applies based on when it received information about the adaptation and certain conditions. In other words, in this case, the terminal may determine the on-time period to which the adaptation applies based on the provisions regarding which on-time period the adaptation applies.

[0094] For example, one decision-making method is for the terminal to determine that the Nth on-period (where N is an integer greater than or equal to 1) that occurs after the timing of receiving information about the adaptation is the on-period to which the adaptation will be applied. Note that each example in Figure 7 corresponds to the case where N=1 in this decision-making method, and each example in Figure 8 corresponds to the case where N=2 in this decision-making method.

[0095] In proposals 1-2, the terminal applies the adaptation during an on-period (on-period #3 in Figure 8) after a specific time has elapsed (for example, a specific number of on-periods) since receiving the adaptation information. This allows the adaptation to be applied at the appropriate time, enabling proper reception processing. Furthermore, this allows control over the time between receiving the adaptation information and applying the adaptation, ensuring the terminal has sufficient time to begin applying the adaptation and to receive signals during the on-period in which the adaptation is applied, thus enabling proper reception processing. Additionally, it avoids situations where the terminal fails to receive the signal and experiences reception delays because it cannot apply the adaptation in time after receiving the adaptation information.

[0096] Furthermore, proposals 1-2 allow for flexible notifications by enabling notifications about the adaptation at any time prior to the on-period when the adaptation is applied. For example, early notifications can be made to apply the adaptation in accordance with the timing of anticipated XR traffic. In addition, notifications about the adaptation can be consolidated and sent together with notifications of other control information, resulting in more efficient notifications.

[0097] <Proposal 1-3> While proposals 1-1 and 1-2 above illustrate examples where adaptation is applied during a single on-period, this disclosure is not limited thereto. Proposal 1-3 below illustrates an example where adaptation is applied during multiple on-periods.

[0098] Figure 9 shows a third example of a notification method. Figure 9 shows two examples, Example 1 and Example 2. The horizontal axis in each example in Figure 9 represents the time axis.

[0099] Each example in Figure 9, similar to Figures 7 and 8, shows an example in which one cycle (CDRX cycle) includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0100] In Example 1 of Figure 9, information regarding adaptation is notified during ON period #1. In Example 1 of Figure 9, the terminal receives information regarding adaptation during ON period #1, applies the adaptation during ON period #3, and does not apply the adaptation during ON period #2 and from ON period #4 onward. In other words, in Example 1 of Figure 9, the terminal may apply the adaptation only during ON period #3.

[0101] In Example 2 of Figure 9, information regarding adaptation is notified during ON period #1. In Example 2 of Figure 9, the terminal receives information regarding adaptation during ON period #1, applies the adaptation during ON periods #2 and #3, and does not apply the adaptation from ON period #4 onward. In other words, in Example 2 of Figure 9, the terminal may apply the adaptation only during ON periods #2 and #3.

[0102] In Figure 9, Example 2 shows an example where the adaptation is applied to temporally adjacent on-periods #2 and #3. However, it is also possible to notify that the adaptation will be applied to multiple temporally non-adjacent on-periods (for example, on-periods #2 and #4).

[0103] As with Proposal 1-2, the specific on-season period to which the adaptation will apply may be notified or specified.

[0104] For example, if information indicating which on-time periods the adaptation will apply to is sent to the device (e.g., information about the on-time periods to which the adaptation will apply), the adaptation may be applied only to the notified on-time periods. In this case, the adaptation may be applied to the notified on-time periods and not to on-time periods other than those notified.

[0105] Furthermore, if, for example, it is specified which on-time periods the adaptation applies to, the adaptation may be applied only to the specified on-time periods. In this case, the adaptation may be applied to the specified on-time periods and not to on-time periods other than the specified on-time periods.

[0106] Furthermore, for example, it may be notified or specified which on-time periods the adaptation applies to. Information indicating which on-time periods the adaptation applies to may be included in the information regarding the on-time periods to which the adaptation applies.

[0107] For example, at least one of the following may be notified or specified: the number of on-periods to which the adaptation is applied, the duration of the adaptation, the start position of the multiple on-periods to which the adaptation is applied, and the end position of the on-periods to which the adaptation is applied. The period in which the adaptation is applied may also be notified or specified. The period in which the adaptation is applied may, for example, indicate that the adaptation is applied in one on-period out of four temporally adjacent on-periods, and not in the remaining three.

[0108] The start position of the ON period to which the adaptation applies, and / or the end position of the ON period to which the adaptation applies, may be notified or specified as absolute positions. Alternatively, the start position of the ON period to which the adaptation applies, and / or the end position of the ON period to which the adaptation applies, may be notified or specified as relative positions with respect to a certain position. That certain position may be, for example, the position (or timing) at which information regarding the adaptation is received, the position (or timing) at which reception by CDRX begins, or any other position (or timing).

[0109] Furthermore, the start position of the on-period to which the adaptation is applied, and / or the end position of the on-period to which the adaptation is applied, may be represented by the SFN (System Frame Number) position, the slot position, and the symbol position.

[0110] Furthermore, the period during which the adaptation applies may be notified or specified. Alternatively, for example, the period during which the adaptation applies may be notified or specified using a timer.

[0111] The examples in Figure 9 illustrate how information regarding adaptation is notified during an on-period (e.g., on-period #1), but this disclosure is not limited thereto. For example, information regarding adaptation may be notified in DCI format 2_6, as shown in Example 2 of Figure 7.

[0112] In proposals 1-3, the terminal applies adaptation during one or more on-periods based on the regulations and / or notifications. This allows the terminal to properly process reception during multiple on-periods, even if there is a discrepancy between the arrival timing of the base station signal and the on-period itself, for example, at intervals corresponding to multiple on-periods. Furthermore, since information regarding adaptations for multiple on-periods can be notified collectively, the number of notifications regarding adaptations can be reduced, thereby suppressing the increase in power consumption required for receiving information.

[0113] <Proposal 1-4> Proposal 1-4 shows an example of continuous application of adaptation.

[0114] Figure 10 shows a fourth example of a notification method. Figure 10 shows two examples, Example 1 and Example 2. The horizontal axis in each example in Figure 10 represents the time axis.

[0115] Each example in Figure 10, similar to Figures 7-9, shows an example in which one cycle (CDRX cycle) includes an on period with two unit intervals and a sleep period with the length of three unit intervals.

[0116] In Example 1 of Figure 10, information regarding adaptation is notified during ON period #1. In Example 1 of Figure 10, the terminal receives information regarding adaptation during ON period #1 and applies the adaptation during each ON period from ON period #2 onward.

[0117] In Example 2 of Figure 10, information regarding adaptation is notified during ON period #1. In Example 2 of Figure 10, the terminal receives information regarding adaptation during ON period #1 and applies the adaptation during each ON period from ON period #3 onward.

[0118] As with proposals 1-2 and 1-3, the specific on-season to which the adaptation will apply may be notified or specified.

[0119] For example, if information indicating which on-time period the adaptation will be applied to is notified to the device (e.g., information regarding the on-time period to which the adaptation will be applied), the adaptation may be continuously applied to the notified on-time period and to on-time periods thereafter.

[0120] For example, in Example 1 of Figure 10, if the terminal is notified that the on-time period to which the adaptation will be applied is on-time period #2, the terminal will continuously apply the adaptation during on-time period #2 and subsequent on-time periods.

[0121] Furthermore, if, for example, it is specified which on-time periods to which the adaptation applies, the adaptation may be applied to the specified on-time period and to on-time periods thereafter.

[0122] For example, in Example 1 of Figure 10, if it is specified that the on-time period to which adaptation is applied is on-time period #2, the terminal will continuously apply adaptation during on-time period #2 and subsequent on-time periods.

[0123] Whether or not to continuously apply adaptation may be notified or stipulated. For example, whether or not to continuously apply adaptation may be switched based on specific conditions. For example, a terminal may decide whether or not to continuously apply adaptation based on specific conditions.

[0124] The examples in Figure 10 illustrate how information regarding adaptation is communicated during an on-period (e.g., on-period #1), but the disclosure is not limited thereto. For example, information regarding adaptation may be communicated in DCI format 2_6, as shown in Example 2 of Figure 7.

[0125] In proposals 1-4, the terminal applies adaptations during multiple consecutive on-time periods based on regulations and / or notifications. This allows the terminal to properly process reception during multiple on-time periods where adaptations are applied, even if, for example, there is a persistent delay between the arrival timing of signals from the base station and the on-time period. Furthermore, since information regarding adaptations for multiple on-time periods can be notified collectively, the number of notifications regarding adaptations can be reduced, thereby suppressing the increase in power consumption required for receiving information.

[0126] Furthermore, in Proposal 1-4, if the application of a continuous adaptation is to be stopped, information indicating that the application of the adaptation will be stopped may be notified. Also, if the applied adaptation is to be switched, information indicating that the application of the adaptation will be switched may be notified. Here, switching adaptations may correspond to, for example, switching the elements being adapted and / or switching the content of the adaptations.

[0127] <Proposals 1-5> Proposal 1-5 provides an example where a time constraint is set between the notification of information regarding the adaptation and the commencement of its application.

[0128] Note that time constraints may be replaced with other notations such as timelines or application delays.

[0129] Proposals 1-5 include Alternation 1 (Alt.1) and Alternation 2 (Alt.2), as shown below.

[0130] (Alt.1) When information regarding an adaptation is notified to a device, the target of the adaptation may be notified in a manner that satisfies the time constraints. In other words, the device does not expect to be notified of an adaptation target that does not satisfy the time constraints. In this case, the device may expect to be notified of an adaptation target that does satisfy the time constraints. Here, the target of the adaptation may be at least one on period during which the adaptation is applied.

[0131] (Alt.2) The device may begin applying the adaptation after it has been notified about the adaptation and after the time constraint has been met. In this case, the device will not begin applying the adaptation between the time it is notified about the adaptation and the time constraint has been met.

[0132] In Alt.1, the terminal does not need to determine whether the time constraint is met; the base station determines which adaptation destinations satisfy the time constraint and notifies the terminal of these destinations. On the other hand, in Alt.2, the terminal determines whether the time constraint is met and, based on that determination, decides which adaptation destinations to apply to.

[0133] Figure 11 shows a fifth example of the notification method. Figure 11 shows two versions: Alt.1 and Alt.2. In Figure 11, the horizontal axis of Alt.1 and Alt.2 represents the time axis.

[0134] Alt.1 and Alt.2 in Figure 11, similar to Figures 7-10, show an example where one cycle (CDRX cycle) includes an on period with two unit intervals and a sleep period with the length of three unit intervals. Furthermore, Alt.1 and Alt.2 in Figure 11 show the time intervals that are constrained as "time constraints".

[0135] In Alt.1 of Figure 11, information regarding adaptation is notified to the terminal during ON period #1. In Alt.1 of Figure 11, ON period #2 is an ON period within the time interval constrained as a "time constraint." That is, ON period #2 is an ON period that does not satisfy the time constraint. Therefore, ON period #2 is not included in the scope of application of adaptation. In this case, the terminal does not need to expect notification of information indicating that ON period #2 is a target of adaptation. Also, in this case, the terminal may expect notification of information indicating that ON periods #3 and later are targets of adaptation.

[0136] In Alt.2 of Figure 11, during ON period #1, information regarding adaptation is notified to the terminal. Then, in Alt.2 of Figure 11, ON period #2 is an ON period within the time interval constrained as a "time constraint". In other words, ON period #2 is an ON period that does not satisfy the time constraint. In this case, the terminal determines that ON period #2 is an ON period that does not satisfy the time constraint, and that ON period #3 is an ON period that satisfies the time constraint. The terminal then applies adaptation from ON period #3 onward.

[0137] Figure 11 shows an example where the adaptation applies to ON periods #4 and beyond that which satisfy the time constraint, but this disclosure is not limited to this. For example, the scope to which the adaptation applies among the ON periods that satisfy the time constraint may be defined or notified. For example, it may be defined or notified that the adaptation applies to the K (K is an integer greater than or equal to 1) ON periods that satisfy the time constraint, starting from the earliest in terms of time.

[0138] Information regarding time constraints may be specified or notified. For example, at least one of the following may be specified or notified: the length of the time constrained as a time constraint, the starting position (or reference position) of the time constrained as a time constraint, etc.

[0139] The starting point (or reference point) of the time constraint may be, for example, the timing when information regarding adaptation is notified, or the start or end point of the ON period during which information regarding adaptation is notified.

[0140] Figure 11 shows an example in which information regarding adaptation is notified during an ON period (e.g., ON period #1), but the disclosure is not limited thereto. For example, as shown in Example 2 of Figure 7, information regarding adaptation may be notified by DCI format 2_6. In this case, the start position (or reference position) of the time constraint may be the timing at which DCI format 2_6 is notified, or it may be the start or end position of an ON period that occurs immediately after the timing at which DCI format 2_6 is notified.

[0141] In proposals 1-5, the terminal applies the adaptation during the ON period (ON period #3 in Figure 11) after the time constrained by the time constraint has elapsed since receiving the adaptation information. This allows the adaptation to be applied at the appropriate time, enabling proper reception processing. Furthermore, this allows control over the time between receiving the adaptation information and applying the adaptation, ensuring that the terminal has sufficient time to begin applying the adaptation and that it can receive signals during the ON period after the adaptation is applied, thus enabling proper reception processing.

[0142] As explained above, Proposal 1 notifies or specifies the terminal about the CDRX on duration adaptation. In this case, Proposal 1 allows the terminal to apply the adaptation during an appropriate on-duration after receiving the information about the adaptation. This avoids a discrepancy between the timing of the signal arrival from the base station and the timing (reception period) of the terminal's reception, enabling the terminal to perform reception processing appropriately.

[0143] Furthermore, information indicating whether or not the above-mentioned Proposal 1 is supported may be specified or notified. For example, UE capability indicating whether or not the above-mentioned Proposal 1 is supported may be specified or notified. UE capability is an example of terminal capability information and may be notified from the terminal to the base station.

[0144] Furthermore, for example, a UE capability indicating the support for each example shown in Proposals 1-1 to 1-5, or at least one support for each Alt, may be specified or notified. If a UE capability indicating the support for each example shown in Proposals 1-1 to 1-5, or two or more support for each Alt, is specified, these two or more support capabilities may be specified as individual UE capabilities or as a common UE capability.

[0145] For example, a UE capability may be defined that indicates whether or not it supports the notification of adaptation information during the on-time period, as shown in Example 1 of Figure 7. Alternatively, a UE capability may be defined that indicates whether or not it supports the notification of adaptation information in DCI format 2_6, as shown in Example 2 of Figure 7. These UE capabilities may be defined as individual UE capabilities or as a common UE capability.

[0146] Furthermore, UE capabilities regarding time constraints until the start of adaptation application, as shown in Figure 11, may be defined or notified. For example, time constraints that a terminal can support may be defined or notified as UE capabilities. For example, multiple UE types that can support different time constraints may be defined, and information indicating which of the defined UE types the terminal is may be notified as UE capability. Here, different time constraints are time constraints in which at least one of the length of time constrained as a time constraint and the start position (or reference position) of the time constrained as a time constraint are different from each other.

[0147] The examples in Proposal 1 described above show cases where information regarding adaptation is communicated during a single on-period or sleep period (e.g., DCI format 2_6), but this disclosure is not limited thereto. For example, information regarding adaptation may be communicated during multiple on-periods, multiple sleep periods (e.g., DCI format 2_6), or a combination of on-periods and sleep periods. The method of communication may be predetermined, communicated to the terminal, or communicated to the base station as part of the terminal's UE capability.

[0148] <Proposal 2> In Proposal 2, the adaptation of the location of CDRX on duration may be notified or specified.

[0149] <Proposal 2-1> In Proposal 2-1, the terminal shifts the start position of the on-time period during which adaptation is applied. Note that shifting the start position of the on-time period during which adaptation is applied may be equivalent to shortening or lengthening the length of the sleep period immediately preceding the on-time period during which adaptation is applied.

[0150] In the following, on-periods to which adaptation applies by notice or regulation may be referred to as on-period#X (where X is an integer greater than or equal to 1). On-periods that follow on-period#X may be referred to as on-period#Y (where Y is an integer greater than X).

[0151] The number of on-periods to which the adaptation applies (e.g., the number of X) may be one or more. Similarly, the number of on-periods that follow on-period #X (e.g., the number of Y) may be one or more. If there are multiple X values, Y may be an integer greater than the largest X among them.

[0152] For example, if there are multiple on-duty periods to which the adaptation applies by notice or regulation, on-duty period #X may correspond to the earliest on-duty period among those multiple on-duty periods. In this case, a portion of on-duty period #Y may also be instructed by notice or regulation to be subject to the adaptation.

[0153] In Proposal 2-1, the length of the ON period #X does not need to be changed. In Proposal 2-1, the length of the ON period #X may be the same as when no adaptation is applied. In other words, in Proposal 2, the end position of the ON period #X may be shifted in accordance with the change in the start position of the ON period #X. In this case, the amount of shift and the time direction of the shift for the start position of the ON period #X and the amount of shift and the time direction of the shift for the end position of the ON period #X may be the same.

[0154] In addition, in Proposal 2-1, any of the following Alts may be applied to the start position of the on-period (e.g., on-period #Y) that follows the on-period to which the adaptation is applied (e.g., on-period #X).

[0155] (Alt.1) The starting position of on-period #Y is maintained when adaptation is not applied. In this case, the length of the sleep period between on-period #X and the next on-period #Y is extended. Here, the amount by which the length of the sleep period is changed may be the same as the amount by which the starting position of on-period #X is shifted.

[0156] Note that an extension of the duration may simply be described as "extension of duration." Furthermore, "extension" may be replaced with other terms such as "increase," "enlargement," or "expansion."

[0157] Note that shortening the length of a period may simply be described as "shortening of the period." Furthermore, "shortening" may be replaced with other terms such as "decrease" or "reduction." The length of a period may also be described as "period length" or "interval."

[0158] (Alt.2) The period is maintained as if the adaptation were not applied. In other words, in this case, the start position of ON period #Y is also shifted, similar to the shift of the start position of ON period #X. Here, the amount of the shift of the start position of ON period #Y may be the same as the amount of the shift of the start position of ON period #X.

[0159] (Alt.3) Similar to Alt.2, the period is maintained, but unlike Alt.2, the adaptation is also applied during the ON period #Y. In this case, the starting position is shifted during ON periods #X and #Y. In other words, in Alt.3, the period after the adaptation is applied is maintained in each CDRX cycle.

[0160] Each example from Alt.1 to Alt.3 will be explained using Figure 12.

[0161] Figure 12 shows the first example of adaptation application. Figure 12 shows both an example where adaptation is not applied ("No Adaptation") and an example where adaptation is applied during ON period #2 ("Adaptation Applied"). In the example where adaptation is applied during ON period #2, three distinct examples, Alt.1 to Alt.3, are shown. The horizontal axis in Figure 12 represents the time axis.

[0162] Each example in Figure 12, similar to Figures 7-11, shows an example where a single cycle (CDRX cycle) without adaptation includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0163] In Figure 12, adaptation is applied during ON period #2. In other words, in this case, ON period #X corresponds to ON period #2, and ON period #Y corresponds to ON period #3 and beyond. In this example, the start position of ON period #2 is shifted forward by one unit interval. Note that the amount of the shift is not limited to this. Note that the shift of the start position of ON period #2 forward by one unit interval may be equivalent to shortening the length of the sleep period preceding ON period #2 by one unit interval.

[0164] In Alt.1, an example of the adaptation applied in Figure 12, the start position of ON period #3 is maintained at the same position as in the example where the adaptation is not applied. Maintaining the same start position of ON period #3 as in the example where the adaptation is not applied can be considered equivalent to extending the length of the sleep period between ON period #2 and ON period #3.

[0165] Alt.1 states that the start and end positions of the on-period #Y following on-period #X to which the adaptation is applied are maintained at the same positions as the on-period #Y when the adaptation is not applied, but this disclosure is not limited thereto. For example, the start and end positions of the on-period #Y following on-period #X to which the adaptation is applied may gradually approach the same position as the start position of the on-period #Y when the adaptation is not applied.

[0166] To explain using Alt.1 in Figure 12, for example, if the start and end positions of on-period #2 are shifted forward by a shift amount ΔT2, the start and end positions of on-period #3 may also be shifted forward by a shift amount ΔT3, which is smaller than the shift amount ΔT2. Then, the start and end positions of on-period #4 are maintained at the same position as on-period #4 when adaptation is not applied. In this way, the further an on-period is from on-period #2, the closer it may gradually approach the same position as on-period #Y when adaptation is not applied.

[0167] In Alt.2 of the example in Figure 12 where the adaptation is applied, the CDRX cycle from on-period #2 onwards is maintained at the same period as in the example where the adaptation is not applied. In this case, the start position of each on-period from on-period #3 onwards is shifted forward by one unit interval compared to the start position in the case where the adaptation is not applied.

[0168] Alt.2 shows an example where the period is maintained when adaptation is not applied, but this disclosure is not limited to this. For example, the period may be shifted gradually to approach the period when adaptation is not applied.

[0169] To illustrate using Alt.2 in Figure 12, for example, if the start and end positions of ON period #2 are shifted forward by a shift amount ΔT2 (one unit interval in Figure 12), the start and end positions of ON period #3 may also be shifted forward by a shift amount ΔT3, which is smaller than the shift amount ΔT2 (for example, half the length of a unit interval). Then, the start and end positions of ON period #4 are maintained at the same positions as ON period #4 when no adaptation is applied. In this way, the further the CDRX cycle is from ON period #2, the more gradually it may approach the same period as when no adaptation is applied.

[0170] In Alt.3 of the example in Figure 12 where the adaptation is applied, the CDRX cycle from ON period #2 onwards is maintained at the same period as when the adaptation is applied. Here, the period when the adaptation is applied may be a period that includes an ON period having two unit intervals and a sleep period having the length of two unit intervals.

[0171] As shown in Alt.3 of the example where the adaptation in Figure 12 is applied, each CDRX cycle from on-period #2 onwards includes an on-period with two unit intervals and a sleep period with the length of two unit intervals.

[0172] Figure 12 shows an example where the start position is shifted, but this disclosure is not limited to this. The end position may be shifted instead of the start position. An example where the end position is shifted will be explained using Figure 13.

[0173] Figure 13 shows a second example of the application of adaptation. Similar to Figure 12, Figure 13 shows an example where adaptation is not applied ("No Adaptation") and an example where adaptation is applied during ON period #2 ("Adaptation Applied"). In the example where adaptation is applied during ON period #2, three examples, Alt.1 to Alt.3, are shown separately, similar to Figure 12. The horizontal axis in Figure 13 represents the time axis.

[0174] Each example in Figure 13, similar to Figures 7-11, shows an example where a single cycle (CDRX cycle) without adaptation includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0175] In the example where adaptation is applied during ON period #2 in Figure 13, the start position of ON period #2 is shifted backward by one unit interval. However, the amount of the shift is not limited to this. Note that the shifting of the start position of ON period #2 backward by one unit interval may be equivalent to extending the length of the sleep period preceding ON period #2 by one unit interval.

[0176] In Alt.1, an example of the adaptation applied in Figure 13, the start position of ON period #3 is maintained at the same position as in the example where the adaptation is not applied. Maintaining the start position of ON period #3 at the same position as in the example where the adaptation is not applied can be considered equivalent to shortening the length of the sleep period between ON period #2 and ON period #3.

[0177] In Alt.2 of the example in Figure 13 where the adaptation is applied, the CDRX cycle from on-period #2 onwards is maintained at the same period as in the example where the adaptation is not applied. In this case, the start position of each on-period from on-period #3 onwards is shifted back by one unit interval compared to the start position in the case where the adaptation is not applied.

[0178] In Alt.3 of the example in Figure 13 where adaptation is applied, the CDRX cycle from on-period #2 onwards is maintained at the same period as when adaptation is applied. Here, the period when adaptation is applied may be a period that includes an on-period with two unit intervals and a sleep period with the length of four unit intervals.

[0179] As shown in Alt.3 of the example where the adaptation in Figure 13 is applied, each CDRX cycle from on-period #2 onwards includes an on-period with two unit intervals and a sleep period with the length of four unit intervals.

[0180] In Proposal 2-1, the terminal shifts the position (start and end positions) of the ON period to which adaptation is applied over time. This avoids a discrepancy between the arrival timing of the base station signal and the terminal's reception timing (reception period), allowing the terminal to properly process the reception. Furthermore, since the length of the ON period is not changed in Proposal 2-1, an increase in power consumption in the terminal can be suppressed.

[0181] <Proposal 2-2> Proposal 2-1 shows an example where the start position of on-period #X is shifted and the end position of on-period #X is shifted during the on-period (on-period #X) to which the adaptation is applied. Proposal 2-2 shows an example where the start position of on-period #X is shifted during the on-period (on-period #X) to which the adaptation is applied, while the end position of on-period #X is maintained at the same position as when the adaptation is not applied. By shifting the start position of on-period #X and maintaining the end position of on-period #X at the same position as when the adaptation is not applied, the length of on-period #X is changed.

[0182] In addition, in Proposal 2-2, any of the following Alts may be applied to the start position of the on-period (e.g., on-period #Y) that follows the on-period to which the adaptation is applied (e.g., on-period #X).

[0183] (Alt.1) The start and end positions of the on-period #Y are maintained when no adaptation is applied. In this case, the length of the sleep period between on-period #X and on-period #Y is not changed.

[0184] (Alt.2) The start position of ON period #Y is shifted in the same way as the start position of ON period #X. Similarly, the end position of ON period #Y is also shifted in the same way as the start position of ON period #X. Here, the amount of shift of the start position and the amount of shift of the end position of ON period #Y may be the same as the amount of shift of the start position of ON period #X.

[0185] (Alt.3) In Alt.1 and Alt.2, the adaptation is not applied during the ON period #Y, but in Alt.3, the adaptation is applied during the ON period #Y. In this case, the start position of the ON period #Y is shifted in the same way as the shift of the start position of the ON period #X. The end position of the ON period #Y is maintained in the same position as when the adaptation is not applied, similar to the end position of the ON period #X. In other words, in Alt.3, the period after the adaptation is applied is maintained in each CDRX cycle.

[0186] Figure 14 shows a third example of the application of adaptation. Figure 14 shows an example where adaptation is not applied ("No adaptation") and an example where adaptation is applied during ON period #2 ("Adaptation applied"). In the example where adaptation is applied during ON period #2, three examples, Alt.1 to Alt.3, are shown separately. The horizontal axis in Figure 14 represents the time axis.

[0187] Each example in Figure 14, similar to Figures 7-11, shows an example where a single cycle (CDRX cycle) without adaptation includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0188] In the example where adaptation is applied during ON period #2 in Figure 14, the start position of ON period #2 is shifted forward by one unit interval. However, the amount of the shift is not limited to this. Note that the shift of the start position of ON period #2 forward by one unit interval may be equivalent to shortening the length of the sleep period preceding ON period #2 by one unit interval.

[0189] In the example in Figure 14 where adaptation is applied during ON period #2, the end position of ON period #2 is maintained at the same position as when adaptation is not applied.

[0190] In Alt.1, an example of the adaptation applied in Figure 14, the start and end positions of On Period #3 are maintained at the same positions as in the example where the adaptation is not applied. Maintaining the same start position for On Period #3 as in the example where the adaptation is not applied is equivalent to maintaining the length of the sleep period between On Period #2 and On Period #3.

[0191] In Alt.2 of the example in Figure 14 where the adaptation is applied, the start and end positions of the on-periods from on-period #3 onwards are shifted forward by one unit interval compared to when the adaptation is not applied, similar to the shift in the start position of on-period #2. In other words, in this case, the sleep period between on-period #2 and on-period #3 is shortened by one unit interval.

[0192] In Alt.3 of the example in Figure 14 where the adaptation is applied, the adaptation is applied to each of the on periods from on period #3 onwards. In this example, the start position of the on periods from on period #3 onwards is shifted forward by one unit interval compared to when the adaptation is not applied, similar to the shift in the start position of on period #2. On the other hand, the end position of the on periods from on period #3 onwards is maintained at the same position as when the adaptation is not applied, similar to the end position of on period #2. In other words, in this case, the period when the adaptation is applied is maintained in each CDRX cycle. Here, the period when the adaptation is applied may be a period that includes an on period having three unit intervals and a sleep period having the length of two unit intervals.

[0193] As shown in Alt.3 of the example where the adaptation in Figure 14 is applied, each CDRX cycle from on period #2 onwards includes an on period with three unit intervals and a sleep period with the length of two unit intervals.

[0194] In Proposal 2-2, the terminal shifts one of the start and end positions of the ON period to which adaptation is applied in the time direction, while maintaining the other position at the same location as when adaptation is not applied. This avoids a discrepancy between the timing of signal arrival from the base station and the terminal's reception timing (reception period), allowing the terminal to perform reception processing appropriately. Furthermore, since Proposal 2-2 shifts only one of the start and end positions of the ON period to which adaptation is applied in the time direction, control can be easily performed. In addition, since Proposal 2-2 changes the length of a portion of the ON period while leaving the length of the remaining ON period unchanged, an increase in power consumption in the terminal can be suppressed.

[0195] As explained above, Proposal 2 notifies or specifies the adaptation of the CDRX on duration position as an example of the application of adaptation. In this case, Proposal 2 allows the terminal to move, extend, or shorten the on duration at an appropriate time (or for an appropriate period). This avoids a discrepancy between the timing of the arrival of the signal from the base station and the timing (reception period) of the terminal's reception, enabling the terminal to perform reception processing appropriately.

[0196] Furthermore, in the above-mentioned Proposal 2 (Proposals 2-1 and 2-2), at least one of the shift amount that shifts the position of the ON period to which the adaptation applies, and the direction in which the position of the ON period to which the adaptation applies is shifted, may be specified or notified. The position of the ON period may be only the start position of the ON period, only the end position, or both the start and end positions. For example, one of the shift amount that shifts the start position of the ON period and the direction in which the start position of the ON period is shifted may be notified, and the other may be specified. For example, the shift amount that shifts the start position of the ON period may be specified as a fixed amount, and information indicating whether the direction of the shift is forward or backward in the time direction may be notified. Alternatively, for example, one of the shift amount that shifts the end position of the ON period and the direction in which the end position of the ON period is shifted may be notified, and the other may be specified. For example, the shift amount that shifts the end position of the ON period may be specified as a fixed amount, and information indicating whether the direction of the shift is forward or backward in the time direction may be notified.

[0197] Furthermore, the shift amount may be expressed in specific time units such as SFN, slot, and symbol, or in absolute values ​​of time widths such as ms and μs, or in combination thereof. Also, the position (start position and / or end position) of the ON period to which the adaptation is applied may be expressed in specific time units such as SFN, slot, and symbol, or in absolute values ​​of time widths such as ms and μs, or in combination thereof.

[0198] Furthermore, in the above-mentioned Proposal 2 (Proposals 2-1 and 2-2), information indicating the location (start and / or end) of the ON period to which the adaptation applies may be specified or notified. The start of the ON period may be indicated by a specific time unit such as SFN, slot, and symbol, by an overall position, or by a relative position from a certain reference position. The reference position may be, for example, the immediately preceding ON period.

[0199] Alternatively, instead of providing information indicating the start and end positions of the on-period to which the adaptation applies, the system may provide either the start or end position of the on-period to which the adaptation applies, along with the length of the on-period.

[0200] <Proposal 3> Proposal 3 may provide notification or specify the adaptation of the duration of CDRX on duration.

[0201] In Proposal 3, the terminal modifies the length of an on-period (e.g., on-period #X) to which the adaptation is applied. The modification of the period length may be at least one of extending or shortening the period length. An example of extending the length of on-period #X is given below, but the disclosure is not limited thereto. For example, the length of on-period #X may be shortened.

[0202] In Proposal 3, any of the following Alts may be applied to the start position of the on-period (e.g., on-period #Y) that follows the on-period to which the adaptation is applied (e.g., on-period #X). Note that the following Alts may be applied not only when extending on-period #X, but also when shortening on-period #X.

[0203] (Alt.1) The start position of on-period #Y is maintained when adaptation is not applied. In this case, the length of the sleep period between on-period #X and on-period #Y is shortened. Here, the length by which the sleep period is shortened may be the same as the length by which on-period #X is extended.

[0204] Additionally, the length of the on-period #Y may be extended in the same way as the on-period #X, or it may be maintained at the length when no adaptation is applied.

[0205] (Alt.2) The starting position of ON period #Y may be shifted in accordance with increases or decreases in the length of ON period #X. In this case, the amount by which the starting position of ON period #Y is shifted may be the same as the length by which ON period #X is extended.

[0206] Additionally, the length of the on-period #Y may be extended in the same way as the on-period #X, or it may be maintained at the length when no adaptation is applied.

[0207] Figure 15 shows a fourth example of the application of adaptation. Figure 15 shows an example where adaptation is not applied ("No Adaptation") and an example where adaptation is applied during ON period #2 ("Adaptation Applied"). In the example where adaptation is applied during ON period #2, two examples, Alt.1 and Alt.2, are shown separately. The horizontal axis in Figure 15 represents the time axis.

[0208] Each example in Figure 15, similar to Figures 7-11, shows an example where a single cycle (CDRX cycle) without adaptation includes an on period with two unit intervals and a sleep period with a length of three unit intervals.

[0209] In the example where adaptation is applied during ON period #2 in Figure 15, the duration of ON period #2 is extended by one unit interval. However, the amount of extension is not limited to this. Note that extending the duration of ON period #2 by one unit interval may be equivalent to shifting the end position of ON period #2 backward by one unit interval.

[0210] In Alt.1, an example of the adaptation applied in Figure 15, the starting position of the on-periods from on-period #3 onwards is maintained at the same position as in the example where the adaptation is not applied. Note that the fact that the starting position of on-period #3 is maintained at the same position as in the example where the adaptation is not applied corresponds to a reduction in the length of the sleep period between on-period #2 and on-period #3.

[0211] In addition, in Alt.1, an example where the adaptation shown in Figure 15 is applied, the duration of the on-periods from on-period #3 onwards may be extended, similar to on-period #2.

[0212] In Alt.2 of the example where the adaptation is applied in Figure 15, the start and end positions of the on periods from on period #3 onwards are sequentially shifted backward in accordance with the extension of the duration of on period #2. In other words, in this case, the length of each sleep period is maintained at the same length as when the adaptation is not applied.

[0213] In addition, in Alt.2 of the example where the adaptation in Figure 15 is applied, the duration of the on-periods from on-period #3 onwards may be extended in the same way as on-period #2.

[0214] As explained above, Proposal 3 may also specify or notify about the adaptation of the CDRX on duration. In this case, Proposal 3 allows the terminal to extend or shorten the on duration at an appropriate time (or for an appropriate period). This avoids a discrepancy between the timing of the arrival of the signal from the base station and the timing (reception period) of the terminal's reception, enabling the terminal to perform reception processing appropriately.

[0215] In addition, in Proposal 3, the length of the extension of the ON period may be specified or notified.

[0216] Furthermore, while Proposal 3 shows an example of extending the length of the on-duty period, the length of the on-duty period may also be shortened. The amount by which the on-duty period is shortened may be specified or notified.

[0217] Furthermore, in Proposal 3, the adaptation may or may not be applied to the on-period (on-period #Y) that follows the on-period (on-period #X) to which the adaptation is applied.

[0218] <Proposal 4> Proposal 4 may provide notification or specify the adaptation of the CDRX cycle length.

[0219] Figure 16 shows a fifth example of the application of adaptation. Figure 16 shows both an example where adaptation is not applied ("No Adaptation") and an example where adaptation is applied ("Adaptation Applied"). In the example where adaptation is applied, two examples are shown separately: Example 1, where adaptation is applied during On Period #1, and Example 2, where adaptation is applied during On Period #2. The horizontal axis in Figure 16 represents the time axis.

[0220] Each example in Figure 16, similar to Figures 7-11, shows an example where a single cycle (CDRX cycle) without adaptation includes an on period with two unit intervals and a sleep period with the length of three unit intervals.

[0221] As shown in Figure 16, both Example 1 and Example 2, where the adaptation is applied, share the commonality that the CDRX cycle is changed to include an on period with two unit intervals and a sleep period with the length of two unit intervals as a result of the adaptation. On the other hand, Example 1 and Example 2, where the adaptation is applied, differ in the notification of the adaptation and the timing of its application. For example, the on period to which the adaptation is applied differs between Example 1 and Example 2.

[0222] In Example 1 of Figure 16, adaptation is applied during ON period #1, and the length of the sleep period following ON period #1 is shortened by one unit interval. Note that the amount of shortening is not limited to this.

[0223] In Example 2 of Figure 16, adaptation is applied during ON period #2, and the length of the sleep period preceding ON period #2 is shortened by one unit interval. Note that the amount of shortening is not limited to this.

[0224] Note that in Examples 1 and 2 of Figure 16, examples are shown where the length of the CDRX cycle is changed, including an on-period where adaptation is not applied (e.g., on-period #3). However, the length of the CDRX cycle during an on-period where adaptation is not applied may be the same as in the example where adaptation is not applied ("No Adaptation").

[0225] As explained above, Proposal 4 notifies or specifies the adaptation of the CDRX cycle length. In this case, Proposal 4 requires the terminal to adjust the CDRX cycle length so that the ON period is located at an appropriate time (or period). For example, the adjustment of the CDRX cycle length includes at least one of extending and shortening the ON period length, and extending and shortening the sleep period length. This avoids a discrepancy between the timing of the arrival of the signal from the base station and the timing of the terminal's reception (reception period), allowing the terminal to perform reception processing appropriately.

[0226] The above-mentioned proposals may be used in combination. The combination of proposals may be fixed, or the combination of proposals may be changed. The content of the combination of proposals may be prescribed, or it may be notified.

[0227] Furthermore, the above-mentioned proposals may be used interchangeably. The proposed substitutions may be prescribed or notified.

[0228] Furthermore, UE capability indicating whether or not one of the above-mentioned proposals can be supported may be defined or notified. Alternatively, UE capability indicating whether or not multiple of the above-mentioned proposals can be supported may be defined or notified.

[0229] The unit of time in each of the above examples may be milliseconds (ms), or other units such as seconds (s), microseconds (μs), or nanoseconds (ns). Alternatively, the unit of time may be a specific time unit such as SFN, slot, or symbol.

[0230] Note that "On duration" (or "On period") may also refer to the period during which the "On duration timer" is running.

[0231] In the embodiments described above, the method for determining whether or not to apply adaptation, the method for determining the on-period for applying adaptation, the method for determining the element to be adapted (e.g., a parameter adjusted by adaptation), and the method for adjusting that element (e.g., a method for determining the amount by which the starting position is shifted) are not particularly limited. For example, a base station may determine at least one of the following based on specific criteria (e.g., criteria related to transmission and reception timing, reception quality, traffic volume, reliability required by traffic, etc.): whether or not to apply adaptation, the on-period for applying adaptation, the element to be adapted, and the method for adjusting that element. Alternatively, a terminal may determine at least one of the following based on specific criteria: whether or not to apply adaptation, the on-period for applying adaptation, the element to be adapted, and the method for adjusting that element. Furthermore, at least one of the following—whether or not to apply adaptation, the on-period for applying adaptation, the element to be adapted, and the method for adjusting that element—may be predetermined.

[0232] For example, the base station may decide to apply the adaptation if the timing of the XR traffic is not included in the CDRX on duration interval, and not apply the adaptation if the timing of the XR traffic is included in the CDRX on duration interval.

[0233] In the embodiments described above, an example was shown where the signal transmitted from the base station and received by the terminal during the ON period (the signal received intermittently) is an XR traffic signal. However, this disclosure is not limited to this example. The signal received intermittently by the terminal may be a signal different from the XR traffic signal.

[0234] Furthermore, while the above-described embodiments mention the CDRX function as an intermittent reception method, this disclosure is not limited thereto. Each of the proposals in the above-described embodiments may be used in reception methods other than the CDRX function.

[0235] Furthermore, while the embodiments described above illustrate an example in which a terminal intermittently receives signals transmitted from a base station, this disclosure is not limited to this. For example, the proposals of the embodiments described above may also be used when a base station intermittently receives signals transmitted from a terminal. Alternatively, the proposals of the embodiments described above may also be used in sidelink communication when one terminal intermittently receives signals transmitted from another terminal.

[0236] In the embodiments described above, "active" may be interpreted as "enabled," "activated," "started," etc., and "inactive" may be interpreted as "disabled," "removed," "sleep," etc. "Signal" may be interpreted as "information," "control information," "notification," etc.

[0237] (Device configuration) Next, we will describe an example of the functional configuration of the base station 100 and terminal 200 that perform the processes and operations described above. The base station 100 and terminal 200 may have functions to implement the embodiments described above. However, the base station 100 and terminal 200 may each have only some of the functions in the embodiments.

[0238] <Base station> Figure 17 is a block diagram showing an example of the configuration of a base station 100 according to one embodiment of the present disclosure. The base station includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. The base station 100 communicates wirelessly with a terminal 200 (see Figure 18). The transmitting unit 101 and the receiving unit 102 may collectively be referred to as the communication unit.

[0239] The transmitting unit 101 transmits a DL signal to the terminal 200. For example, the transmitting unit 101 transmits the DL signal under the control of the control unit 103. For example, the DL signal may include information indicating the scheduling of signal transmission at the terminal 200 (e.g., UL grant), upper-layer control information, etc.

[0240] For example, the transmitting unit 101 transmits various control signals (such as control signals for the RRC layer), reference signals, data signals, etc., to the terminal 200 as DL signals. The transmitting unit 101 transmits various signals, channels, setting information, control information, etc., as described in the above embodiment, to the terminal 200 as DL signals.

[0241] For example, the transmitting unit 101 transmits information about adaptation, generated by the control unit 103, to the terminal 200. The transmitting unit 101 also transmits data signals (for example, XR traffic signals) generated by the control unit 103 to the terminal 200.

[0242] The receiving unit 102 receives the UL signal transmitted from the terminal 200. For example, the receiving unit 102 receives the UL signal under the control of the control unit 103.

[0243] For example, the receiving unit 102 receives signals from the terminal 200 as UL signals, including terminal capability information (e.g., UE capability), various control signals, reference signals, data signals, etc.

[0244] The control unit 103 controls the overall (communication) operation of the base station 100, including the transmission process in the transmission unit 101 and the reception process in the reception unit 102.

[0245] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmission unit 101. The control unit 103 also outputs the data and control information received from the reception unit 102 to the upper layer.

[0246] For example, the control unit 103 allocates resources used for transmitting and receiving DL signals and / or UL signals based on signals received from terminal 200 (e.g., data and control information, etc.) and / or data and control information, etc. acquired from higher layers. Information regarding the allocated resources may be included in the control information transmitted to terminal 200.

[0247] The control unit 103 performs operations other than transmission and reception as described in the above embodiment (these operations may also be performed by the transmission unit 101 and / or the reception unit 102).

[0248] For example, the control unit 103 determines whether or not to apply the adaptation, and if so, the on-period for which the adaptation will be applied. Based on the determination result, the control unit 103 generates information about the adaptation to be sent to the terminal 200. Alternatively, for example, the control unit 103 may determine the elements to be adapted (for example, at least one of the parameters to be adjusted (start position, end position, and length of the on-period)) and the amount by which the determined parameters will be adjusted. The control unit 103 may also generate information including the determined content as control information.

[0249] <Terminal> Figure 18 is a block diagram showing an example of the configuration of a terminal 200 according to one embodiment of the present disclosure. The terminal 200 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203. The terminal 200 communicates wirelessly with, for example, a base station 100 (see Figure 17). The receiving unit 201 and the transmitting unit 202 may collectively be referred to as the communication unit.

[0250] The receiving unit 201 receives DL signals transmitted from the base station 100. For example, the receiving unit 201 receives DL signals under the control of the control unit 203.

[0251] For example, the receiving unit 201 receives various control signals, reference signals, data signals, etc. from the base station 100 as DL signals. The receiving unit 201 receives various signals, channels, setting information, control information, etc., as described in the above embodiment, from the base station 100 as DL signals.

[0252] For example, during the ON period, the receiving unit 201 receives a signal from the base station 100. The received signal may include information related to adaptation. The received signal may also include XR traffic signals.

[0253] The transmitting unit 202 transmits the UL signal to the base station 100. For example, the transmitting unit 202 transmits the UL signal under the control of the control unit 203.

[0254] For example, the transmitting unit 202 transmits signals containing information about the processing capabilities of the terminal 200, various control signals, reference signals, data signals, etc., as UL signals to the base station 100.

[0255] The control unit 203 controls the overall (communication) operation of the terminal 200, including the receiving process in the receiving unit 201 and the transmission process in the transmitting unit 202.

[0256] For example, the control unit 203 acquires information such as data and control information from the upper layer and outputs it to the transmission unit 202. The control unit 203 also outputs data and control information received from the receiving unit 201 to the upper layer.

[0257] For example, the control unit 203 applies the adaptation during the ON period based on the received information about the adaptation and / or predetermined information. The ON period during which the adaptation is applied may be determined based on the received information about the adaptation or based on predetermined conditions. Also, for example, the control unit 103 determines the elements to be adapted (for example, at least one of the parameters to be adjusted (start position, end position, and length of the ON period)) based on predetermined conditions and / or received information, and determines the amount by which the determined parameters are adjusted. The control unit 103 applies the adaptation based on the determined information.

[0258] The control unit 203 performs operations other than the transmission and reception described in the above embodiment (these operations may also be performed by the receiving unit 201 and / or the transmitting unit 202).

[0259] This concludes the explanation of this disclosure. The division of items in the above explanation is not essential to this disclosure, and matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as they do not contradict each other).

[0260] <Hardware configuration, etc.> The block diagrams used in the description of the above embodiments show functional units. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method of realizing each functional block is not particularly limited. That is, each functional block may be realized using one device that is physically or logically coupled, or it may be realized using two or more physically or logically separated devices that are directly or indirectly connected (for example, using wired or wireless connections). A functional block may also be realized by combining the above one device or the above multiple devices with software.

[0261] Functions include, but are not limited to, judgment, decision, judgment, calculation, calculation, processing, derivation, investigation, exploration, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, assumption, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating (mapping), and assigning. For example, a functional block (configuration part) that enables transmission is called a transmitting unit or transmitter. As mentioned above, the method of implementation is not particularly limited.

[0262] For example, a base station, user terminal, etc. in one embodiment of the present disclosure may function as a computer that processes the wireless communication method of the present disclosure. Figure 19 is a diagram showing an example of the hardware configuration of a base station 100 and a terminal 200 according to one embodiment of the present disclosure. The above-mentioned base station 100 and terminal 200 may be physically configured as a computer device including a processor 1001, memory 1002, storage 1003, communication device 1004, input device 1005, output device 1006, bus 1007, etc.

[0263] In the following explanation, the term "device" can be interpreted as a circuit, device, unit, etc. The hardware configuration of the base station 100 and terminal 200 may include one or more of the devices shown in the figure, or it may be configured without some of the devices.

[0264] Each function in the base station 100 and terminal 200 is realized by loading predetermined software (programs) onto hardware such as the processor 1001 and memory 1002, which allows the processor 1001 to perform calculations and control communication by the communication device 1004, or control at least one of reading and writing data in the memory 1002 and storage 1003.

[0265] The processor 1001 controls the entire computer, for example, by running an operating system. The processor 1001 may be composed of a central processing unit (CPU) that includes interfaces with peripheral devices, control units, arithmetic units, registers, etc. For example, the control units 103 and 203 described above may be implemented by the processor 1001.

[0266] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes accordingly. The program used is one that causes the computer to execute at least a part of the operations described in the above embodiment. For example, the control unit 103 of the base station 100 and the control unit 203 of the terminal 200 may be implemented by control programs stored in the memory 1002 and running on the processor 1001, and other functional blocks may be implemented similarly. The above-described various processes have been explained as being executed by one processor 1001, but they may be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The program may also be transmitted from the network via a telecommunications line.

[0267] Memory 1002 is a computer-readable recording medium and may consist of at least one of the following: ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. Memory 1002 may also be called a register, cache, main memory, etc. Memory 1002 can store executable programs (program code), software modules, etc., for carrying out a wireless communication method according to one embodiment of the present disclosure.

[0268] Storage 1003 is a computer-readable recording medium and may be composed of at least one of, for example, optical discs such as CD-ROM (Compact Disc ROM), hard disk drives, flexible disks, magneto-optical disks (e.g., compact discs, digital versatile discs, Blu-ray (registered trademark) discs), smart cards, flash memories (e.g., cards, sticks, key drives), floppy (registered trademark) disks, magnetic strips, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage media may be, for example, a database, a server, or other appropriate media including at least one of memory 1002 and storage 1003.

[0269] Communication device 1004 is hardware (a transmission / reception device) for performing communication between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. Communication device 1004 may be configured to include, for example, a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. in order to implement at least one of frequency division duplex (FDD: Frequency Division Duplex) and time division duplex (TDD: Time Division Duplex). For example, the above-mentioned transmission unit 101, reception unit 102, reception unit 201, and transmission unit 202, etc. may be implemented by communication device 1004. Communication device 1004 may be physically or logically separated and implemented by a transmission unit and a reception unit.

[0270] Input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) for receiving external input. Output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) for performing output to the external. Note that input device 1005 and output device 1006 may have an integrated configuration (e.g., a touch panel).

[0271] Also, each device such as the processor 1001 and the memory 1002 is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus or may be configured using different buses for each device.

[0272] Further, the base station 100 and the terminal 200 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), a field programmable gate array (FPGA), etc., and some or all of the functional blocks may be realized by the hardware. For example, the processor 1001 may be implemented using at least one of these hardware.

[0273] (Summary of Embodiment) According to an embodiment of the present disclosure, there is provided a terminal including: a receiving unit that receives information regarding adjustment of a cycle having an active period for receiving a signal and a sleep period during which the signal is not received; and a control unit that adjusts the active period based on the information and controls reception of the signal during the adjusted active period.

[0274] With the above configuration, it is possible to avoid a deviation between the arrival timing of a signal from the base station and the reception timing (reception period) of the terminal based on the information regarding adjustment, and appropriate reception processing can be performed in the terminal.

[0275] In this terminal, the receiving unit receives the information regarding adjustment of a cycle including a second active period that is later than the first active period during the first active period.

[0276] With the above configuration, based on the information regarding the adjustment, it is possible to avoid discrepancies between the timing of signal arrival from the base station and the timing (reception period) of reception by the terminal, allowing the terminal to perform reception processing appropriately.

[0277] In this terminal, the receiving unit receives the information included in the downlink control information that can be received during the sleep period.

[0278] With the above configuration, control is performed based on information that can be received during the sleep period, allowing for quick changes to the reception process.

[0279] In this terminal, the control unit adjusts a third active period that occurs after a specific amount of time has elapsed since receiving the information.

[0280] The above configuration allows for flexible notification, as information regarding adjustments can be provided in advance.

[0281] In this terminal, the control unit adjusts a plurality of the active periods.

[0282] With the above configuration, information for multiple active periods can be notified collectively, thereby reducing the number of notifications and suppressing the increase in power consumption required for receiving information.

[0283] According to embodiments of the present disclosure, a base station is provided that includes a control unit that generates information regarding the adjustment of a period having an active period in which the terminal receives a signal and a sleep period in which the terminal does not receive the signal, and a transmission unit that transmits the information.

[0284] With the above configuration, based on the information regarding the adjustment, it is possible to avoid discrepancies between the timing of signal arrival from the base station and the timing (reception period) of reception by the terminal, allowing the terminal to perform reception processing appropriately.

[0285] According to an embodiment of the present disclosure, there is provided a terminal including: a control unit that adjusts an active period in a cycle having an active period for receiving a signal and a sleep period for not receiving the signal; and a receiving unit that receives the signal in the adjusted active period.

[0286] With the above configuration, it is possible to avoid a deviation between the arrival timing of a signal from a base station and the reception timing (reception period) of the terminal, and appropriate reception processing can be performed in the terminal.

[0287] In this terminal, the control unit shifts a first active period among a plurality of the active periods provided periodically in the time direction.

[0288] With the above configuration, a deviation between the arrival timing of a signal from a base station and the reception timing (reception period) of the terminal can be avoided by shifting in the time direction, so that an increase in power consumption in the terminal can be suppressed.

[0289] In this terminal, the control unit adjusts the time position of a second active period following the first active period to the same time position as when the first active period is not adjusted.

[0290] With the above configuration, since the time position is not changed, complication of control can be avoided.

[0291] In this terminal, the control unit adjusts the time interval of a sleep period following the first active period to the same time interval as when no adjustment is made.

[0292] With the above configuration, since the time interval is not changed, complication of control can be avoided.

[0293] <00C0969>In this terminal, the control unit changes the length of a first active period among a plurality of the active periods provided periodically and / or a first sleep period following the first active period.

[0294] With the above configuration, by changing the length of some active or sleep periods, it is possible to avoid discrepancies between the timing of signal arrival from the base station and the timing (reception period) of reception by the terminal, thereby suppressing an increase in power consumption in the terminal.

[0295] According to embodiments of the present disclosure, a base station is provided which includes a control unit that generates a signal to be received during the active period after the period having been adjusted to include an active period during which the terminal receives a signal and a sleep period during which the terminal does not receive the signal, and a transmission unit that transmits the signal.

[0296] With the above configuration, it is possible to avoid a discrepancy between the timing of signal arrival from the base station and the timing (reception period) of reception by the terminal, allowing the terminal to perform reception processing appropriately.

[0297] (Supplement to the embodiment) While embodiments of this disclosure have been described above, the disclosed invention is not limited to such embodiments, and those skilled in the art will understand various modifications, alterations, alternatives, substitutions, etc. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these numerical values ​​are merely examples, and any appropriate values ​​may be used. The division of items in the above description is not essential to this disclosure, and matters described in two or more items may be combined as needed, and matters described in one item may be applied to matters described in another item (as long as they do not contradict each other). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical parts. The operation of multiple functional units may be physically performed by one part, or the operation of one functional unit may be physically performed by multiple parts. The processing procedures described in the embodiments may be rearranged as long as they do not contradict each other. For the convenience of explaining the processing, the base station 100 and terminal 200 have been described using functional block diagrams, but such devices may be implemented in hardware, software, or a combination thereof. The software operated by the processor of the base station 100 in accordance with the embodiments of this disclosure and the software operated by the processor of the terminal 200 in accordance with the embodiments of this disclosure may each be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, registers, hard disk (HDD), removable disk, CD-ROM, database, server, or any other suitable storage medium.

[0298] <Information notification, signaling> Information notification is not limited to the embodiments described herein and may be carried out by other means. For example, information notification may be carried out by physical layer signaling (e.g., DCI (Downlink Control Information), UCI (Uplink Control Information)), upper layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling, broadcast information (MIB (Master Information Block), SIB (System Information Block))), other signals, or combinations thereof. RRC signaling may also be called RRC messages, and may be, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0299] <Applicable Systems> Each aspect / embodiment described in this disclosure includes 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 (where x is, for example, an integer or 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 802.16 (WiMAX (registered trademark)), and IEEE This may apply to at least one system utilizing 802.20, UWB (Ultra-WideBand), Bluetooth®, or other appropriate systems, and to next-generation systems extended, modified, created, or defined based thereon. It may also apply to a combination of multiple systems (for example, a combination of at least one of LTE and LTE-A with 5G).

[0300] <Processing Procedures, etc.> The processing procedures, sequences, flowcharts, etc., of each aspect / embodiment described herein may be reordered, provided they are consistent with each other. For example, the methods described herein present various step elements in an exemplary order and are not limited to that specific order.

[0301] <Base station operation> The specific operations described in this disclosure as being performed by a base station may, in some cases, be performed by its upper node. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal can be performed by the base station and at least one other network node (for example, an MME or S-GW, but not limited to these). Although the above example illustrates a case where there is one other network node besides the base station, it may also be a combination of multiple other network nodes (for example, an MME and an S-GW).

[0302] <Input / Output Direction> Information, etc. (see the section on <Information, Signals>) can be output from a higher layer (or lower layer) to a lower layer (or higher layer). Input and output may occur via multiple network nodes.

[0303] <Handling of input / output information, etc.> Input and output information may be stored in a specific location (e.g., memory) or managed using a management table. Input and output information may be overwritten, updated, or appended to. Output information may be deleted. Input information may be transmitted to other devices.

[0304] <Judgment method> The determination may be made by a value represented by 1 bit (0 or 1), by a boolean value (true or false), or by a numerical comparison (for example, a comparison with a predetermined value).

[0305] <Variations in form, etc.> Each aspect / embodiment described herein may be used individually, in combination, or switched between as needed during implementation. Furthermore, notification of specific information (e.g., notification that "X is") is not limited to explicit notification, but may also be implicit (e.g., by not providing such notification).

[0306] Although the present disclosure has been described in detail above, it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the intent and scope of the present disclosure as defined by the claims. Therefore, the descriptions in the present disclosure are illustrative and not intended to be restrictive in any way.

[0307] <Software> Software should be broadly interpreted to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, and so on, whether they are called software, firmware, middleware, microcode, hardware description languages, or by any other name.

[0308] Furthermore, software, instructions, information, etc., may be transmitted and received via a transmission medium. For example, if software is transmitted from a website, server, or other remote source using at least one of wired technology (such as coaxial cable, fiber optic cable, twisted pair, or digital subscriber line (DSL)) and wireless technology (such as infrared or microwave), then at least one of these wired and wireless technologies is included in the definition of a transmission medium.

[0309] <Information, Signals> The information, signals, etc. described in this disclosure may be represented using any of the various different techniques. For example, the data, instructions, commands, information, signals, bits, symbols, chips, etc. that may be referred to throughout the above description may be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0310] In addition, terms used in this disclosure and terms 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 symbol may be a signal (signaling). Also, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, cell, frequency carrier, etc.

[0311] <Systems, Networks> The terms “system” and “network” as used in this disclosure are interchangeable.

[0312] <Parameters, channel name> Furthermore, the information, parameters, etc., described in this disclosure may be expressed using absolute values, relative values ​​from a given value, or other corresponding information. For example, wireless resources may be indicated by an index.

[0313] The names used for the parameters described above are not restrictive in any way. Furthermore, the formulas and other expressions using these parameters may differ from those expressly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any suitable name, and therefore, the various names assigned to these various channels and information elements are not restrictive in any way.

[0314] <Base station> In this disclosure, terms such as "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" may be used interchangeably. Base stations may also be referred to by terms such as macrocell, small cell, femtocell, and picocell.

[0315] A base station can accommodate one or more (e.g., three) cells. If a base station accommodates multiple cells, the entire coverage area of ​​the base station can be divided into several smaller areas, each of which may also be provided with communication services by a base station subsystem (e.g., a Remote Radio Head (RRH)). The terms “cell” or “sector” refer to part or all of the coverage area of ​​at least one of the base station and / or base station subsystems that provide communication services in that coverage.

[0316] In this disclosure, the transmission of information by a base station to a terminal may be interpreted as the base station instructing the terminal to perform information-based control or operation.

[0317] <Mobile Station> In this disclosure, terms such as "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" may be used interchangeably.

[0318] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or several other appropriate terms.

[0319] <Base station / mobile station> At least one of the base station and the mobile station may be called a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to a movable object, and its speed of movement is arbitrary. This also includes the case when the mobile body is stationary. The mobile body includes, but is not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcarts, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and items mounted on them. The mobile body may also be a mobile body that moves autonomously based on operation commands. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile body (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). Furthermore, at least one of the base station and the mobile station may include devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0320] Furthermore, the term "base station" in this disclosure may be interpreted as "user terminal." For example, the various aspects / embodiments of this disclosure may be applied to a configuration in which communication between a base station and a user terminal is replaced with communication between multiple user terminals (which may be called, for example, D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the terminal 200 may have the functions that the base station 100 has. Also, terms such as "uplink" and "downlink" may be interpreted as terms corresponding to terminal-to-terminal communication (for example, "side"). For example, uplink channel, downlink channel, etc., may be interpreted as side channel.

[0321] Similarly, the term "user terminal" in this disclosure may be replaced with "base station." In this case, the base station 100 may be configured to have the same functions as the terminal 200 described above.

[0322] Figure 20 shows an example of the configuration of vehicle 2001. As shown in Figure 20, vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. Each aspect / embodiment described in this disclosure may be applied to a communication device mounted on vehicle 2001, for example, to the communication module 2013.

[0323] The drive unit 2002 consists of, for example, an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel, which is operated by the user.

[0324] The electronic control unit 2010 consists of a microprocessor 2031, memory (ROM, RAM) 2032, and communication ports (IO ports) 2033. Signals from various sensors 2021 to 2029 installed in the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0325] Signals from various sensors 2021-2029 include current signals from current sensor 2021 which senses motor current, front and rear wheel rotation speed signals obtained by rotation speed sensor 2022, front and rear wheel air pressure signals obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depression signals obtained by accelerator pedal sensor 2029, brake pedal depression signals obtained by brake pedal sensor 2026, shift lever operation signals obtained by shift lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0326] The Information Services Unit 2012 consists of various devices for providing (outputting) various types of information such as driving information, traffic information, and entertainment information, including a car navigation system, audio system, speakers, television, and radio, and one or more ECUs that control these devices. The Information Services Unit 2012 uses information acquired from external devices via a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0327] Information Services Section 2012 may include input devices that accept input from external sources (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) and output devices that perform output to external sources (e.g., displays, speakers, LED lamps, touch panels, etc.).

[0328] The driver assistance system unit 2030 consists of various devices that provide functions to prevent accidents or reduce the driver's workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. The driver assistance system unit 2030 also sends and receives various information via the communication module 2013 to realize driver assistance functions or autonomous driving functions.

[0329] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via its communication port. For example, the communication module 2013 sends and receives data via its communication port 2033 to the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, the microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021-2029 provided in the vehicle 2001.

[0330] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with external devices. For example, it can send and receive various types of information to and from external devices via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station or a mobile station.

[0331] The communication module 2013 may transmit at least one of the following to an external device via wireless communication: signals from the various sensors 2021 to 2029 input to the electronic control unit 2010, information obtained based on said signals, and information based on input from an external source (user) obtained via the information service unit 2012. The electronic control unit 2010, the various sensors 2021 to 2029, the information service unit 2012, etc., may also be called input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above input.

[0332] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) transmitted from an external device and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may also be called an output unit, which outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH (or data / information decoded from the PDSCH) received by the communication module 2013). The communication module 2013 also stores the various information received from the external device in memory 2032, which is available to the microprocessor 2031. Based on the information stored in memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc., provided in the vehicle 2001.

[0333] <Meaning and interpretation of terms> As used in this disclosure, the terms “determining” and “determining” may encompass a wide variety of actions. “Determining” may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiry (e.g., searching in a table, database, or other data structure), and ascertaining. “Determining” may also include, for example, receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, and accessing (e.g., accessing data in memory). Furthermore, "judgment" and "decision" can include considering something as having been "judged" or "decided" after resolving, selecting, choosing, establishing, comparing, etc. In other words, "judgment" and "decision" can include considering something as having been "judged" or "decided" after some action. Also, "judgment (decision)" can be reinterpreted as "assuming," "expecting," or "considering."

[0334] The terms “connected,” “coupled,” or any variation thereof, mean any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are “connected” or “coupled” with each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, “connection” may be reinterpreted as “access.” As used in this disclosure, two elements may be considered to be “connected” or “coupled” with each other using at least one of one or more wires, cables, and printed electrical connections, and, in some non-limiting and non-exclusive examples, electromagnetic energy having wavelengths in the radio frequency domain, microwave domain, and optical (both visible and invisible) domain.

[0335] <Reference signal> The reference signal can also be abbreviated as RS (Reference Signal), and may be called a pilot depending on the applicable standard.

[0336] <Meaning of "based on"> In this disclosure, the phrase "based on" does not mean "based solely on" unless otherwise specified. In other words, the phrase "based on" means both "based solely on" and "based at least on."

[0337] <"First," "Second"> Any reference to elements using the designations “first,” “second,” etc., as used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient way to distinguish between two or more elements. Accordingly, references to the first and second elements do not imply that only two elements may be employed, or that the first element must precede the second element in any way.

[0338] <Means> In the configurations of each of the above devices, the "means" may be replaced with a "section", "circuit", "device", etc.

[0339] <Open format> In the present disclosure, when the terms "include", "including" and their variants are used, these terms are intended to be inclusive, similar to the term "comprising". Further, the term "or" used in the present disclosure is not intended to be an exclusive disjunction.

[0340] <Time units such as TTI, frequency units such as RB, radio frame configuration> A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that does not depend on numerology.

[0341] Numerology may be a communication parameter applied to at least one of the transmission and reception of a certain signal or channel. Numerology may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame configuration, specific filtering processing performed by a transceiver in the frequency domain, specific windowing processing performed by a transceiver in the time domain, etc.

[0342] A slot may consist of one or more symbols in the time domain (such as OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A slot may also be a time unit based on neurology.

[0343] A slot may include multiple minislots. Each minislot may consist of one or more symbols in the time domain. Minislots may also be called subslots. Minislots may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0344] Wireless frames, subframes, slots, minislots, and symbols all represent units of time when transmitting a signal. Different names may be used for each of these terms.

[0345] For example, one subframe may be called a Transmission Time Interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one mini-slot may be called a TTI. In other words, at least one of a subframe and a TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (e.g., 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, mini-slot, etc., instead of a subframe.

[0346] Here, TTI refers to, for example, the smallest unit of time for scheduling in wireless communication. For example, in an LTE system, the base station schedules each user terminal to allocate wireless resources (such as the frequency bandwidth and transmission power available to each user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0347] TTI may be a transmission time unit for channel-encoded data packets (transport blocks), code blocks, code words, etc., or it may be a processing unit for scheduling, link adaptation, etc. Given a TTI, the actual time interval (e.g., number of symbols) to which the transport block, code block, code word, etc. are mapped may be shorter than the given TTI.

[0348] Furthermore, if one slot or one mini-slot is referred to as TTI, then one or more TTIs (i.e., one or more slots or one or more mini-slots) may constitute the minimum time unit of scheduling. In addition, the number of slots (number of mini-slots) that constitute the minimum time unit of scheduling may be controlled.

[0349] A TTI with a time length of 1ms may also be called a normal TTI, long TTI, normal subframe, long subframe, slot, etc. A TTI shorter than a normal TTI may also be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, mini slot, sub slot, slot, etc.

[0350] Furthermore, long TTIs (e.g., normal TTIs, subframes, etc.) may be interpreted as TTIs with a time length exceeding 1 ms, and short TTIs (e.g., shortened TTIs, etc.) may be interpreted as TTIs with a TTI length less than that of a long TTI but 1 ms or more.

[0351] A resource block (RB) is a resource allocation unit in the time domain and frequency domain, and in the frequency domain, it may contain one or more consecutive subcarriers. The number of subcarriers in an RB may be the same regardless of the neurology, for example, 12. The number of subcarriers in an RB may be determined based on the neurology.

[0352] Furthermore, the time domain of RB may contain one or more symbols and may be the length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc., may each consist of one or more resource blocks.

[0353] One or more RBs may also be called a Physical RB (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB pair, RB pair, etc.

[0354] Furthermore, a resource block may consist of one or more resource elements (REs). For example, one RE may be a radio resource area comprising one subcarrier and one symbol.

[0355] A Bandwidth Part (BWP), also known as a partial bandwidth, may represent a subset of consecutive common resource blocks (RBs) for a given neurology in a given carrier. Here, the common RBs may be identified by an index of the RBs relative to the carrier's common reference point. A PRB may be defined and numbered within a BWP.

[0356] A BWP may include BWPs for UL (UL BWP) and BWPs for DL ​​(DL BWP). One or more BWPs may be configured within a single carrier for a UE.

[0357] At least one of the configured BWPs may be active, and the UE does not need to assume that it will send or receive a given signal / channel outside of the active BWP. In this disclosure, terms such as "cell" and "carrier" may be read as "BWP".

[0358] The structures described above, such as wireless frames, subframes, slots, minislots, and symbols, are merely illustrative. For example, the number of subframes included in a wireless frame, the number of slots per subframe or wireless frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, and the number of symbols, symbol length, and cyclic prefix (CP) length within a TTI can be varied in various ways.

[0359] <Maximum transmission power> The term "maximum transmit power" as used in this disclosure may mean the maximum value of the transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0360] <article> In this disclosure, if articles are added by translation, such as a, an, and the in English, this disclosure may include the fact that the noun following these articles is plural.

[0361] <"Different"> In this disclosure, the term "A and B are different" may mean "A and B are different from each other." The term may also mean "A and B are each different from C." Terms such as "separate" and "combine" may be interpreted similarly to "different." [Industrial applicability]

[0362] This disclosure is useful for wireless communication systems. [Explanation of Symbols]

[0363] 10 Wireless communication systems 20 NG-RAN 100 base stations (gNB) 200 terminals (UE) 101,202 Transmitter 102,201 Receiving Unit 103,203 Control Unit 1001 Processor 1002 memory 1003 Storage 1004 Communication device 1005 Input device 1006 Output device 1007 Bus

Claims

1. A receiving unit that receives information regarding the adjustment of a period having an active period for receiving a signal and a sleep period for not receiving the signal, Based on the above information, a control unit adjusts the active period and controls the reception of the signal during the adjusted active period, Equipped with, The receiving unit receives the information included in the downlink control information that can be received during the sleep period during the sleep period. The control unit adjusts the active period after a specific time has elapsed since receiving the information. The control unit does not adjust the active period included in the specific time. Terminal.

2. A receiving unit that receives information regarding the adjustment of a period having an active period for receiving a signal and a sleep period for not receiving the signal, Based on the above information, a control unit adjusts the active period and controls the reception of the signal during the adjusted active period, Equipped with, The receiving unit receives the information included in the downlink control information that can be received during the sleep period during the sleep period. The aforementioned information includes information indicating which active period is being adjusted. Terminal.

3. A receiving unit that receives information regarding the adjustment of a period having an active period for receiving a signal and a sleep period for not receiving the signal, Based on the above information, a control unit adjusts the active period and controls the reception of the signal during the adjusted active period, Equipped with, The receiving unit receives the information included in the downlink control information that can be received during the sleep period during the sleep period. The information includes a shift amount that shifts the starting position of the active period. Terminal.

4. A control unit that generates information regarding the adjustment of a cycle having an active period during which the terminal receives a signal and a sleep period during which the terminal does not receive the signal, A transmitting unit that transmits the aforementioned information, Equipped with, The aforementioned information is included in the downlink control information that the terminal can receive during the sleep period. The aforementioned information includes information indicating which active period is being adjusted. Base station.

5. A control unit that generates information regarding the adjustment of a period having an active period during which the terminal receives a signal and a sleep period during which the terminal does not receive the signal, A transmitting unit that transmits the aforementioned information, Equipped with, The aforementioned information is included in the downlink control information that the terminal can receive during the sleep period. The information includes a shift amount that shifts the starting position of the active period. Base station.

6. When the control unit shifts the start position of the active period based on the shift amount, it also shifts the end position of the active period based on the shift amount. The terminal according to claim 3.

7. If the control unit shifts the start position of the active period based on the shift amount, it does not shift the end position of the active period. The terminal according to claim 3.

8. The control unit shifts the start position of each of the multiple active periods based on the shift amount. The terminal according to claim 3.

Images