terminal

Abstract

The terminal has a control section that simultaneously connects with a first radio base station and a second radio base station, a reception section that receives a first setting related to intermittent reception of data transmitted by the first radio base station from the first radio base station, and a transmission section that transmits the first setting to the second radio base station.

Description

Technical Field

[0001] This disclosure relates to a terminal that can connect to multiple networks simultaneously. Background Technology

[0002] The 3rd Generation Partnership Project (3GPP) standardized the 5th generation mobile communication system (also known as 5G, New Radio (NR), or Next Generation (NG)) and also standardized the next generation mobile communication system known as Beyond 5G, 5G Evolution, or 6G.

[0003] In the 6G wireless communication systems that follow, it is expected that ultra-high-speed, high-capacity communication and massive connectivity exceeding those of 5G will be achieved (Non-Patent Document 1).

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: NTT Docomo, "Docomo 6G White Paper Version 5.0", [online], November 2022, [searched on March 15, 2024] Internet <URL: https: / / www.docomo.ne.jp / binary / pdf / corporate / technology / whitepaper_6g / DOCOMO_6G_White_PaperJP_20221116.pdf> Summary of the Invention

[0007] Consider the coexistence of 6G wireless communication systems and existing 5G wireless communication systems. Therefore, consider the scenario where a terminal (hereinafter also referred to as a user equipment (UE)) is simultaneously connected to both a 5G-compliant radio access network (5G RAN) and a 6G-compliant radio access network (6G RAN).

[0008] Furthermore, regarding settings related to DRX (Distributed Reception Default), it is considered to configure them independently for both the base stations constituting the 5G RAN (hereinafter referred to as 5G nodes) and the base stations constituting the 6G RAN (hereinafter referred to as 6G nodes). However, when DRX-related settings, such as the DRX interval, differ between the 5G nodes and 6G nodes, there are concerns about increased UE power consumption and accelerated battery drain.

[0009] Therefore, the purpose of this disclosure is to provide a terminal that can coordinate DRX-related settings between 5G nodes and 6G nodes, thereby reducing power consumption.

[0010] One disclosed embodiment is a terminal comprising: a control unit (control unit 270) that is simultaneously connected to a first wireless base station and a second wireless base station; a receiving unit (wireless signal transceiver unit 210) that receives from the first wireless base station a first setting related to intermittent reception of data transmitted by the first wireless base station; and a transmitting unit (wireless signal transceiver unit 210) that transmits the first setting to the second wireless base station. Attached Figure Description

[0011] Figure 1 This is a general structural diagram of a wireless communication system.

[0012] Figure 2 It is a graph showing the frequency range used in wireless communication systems.

[0013] Figure 3 This is a diagram illustrating the structure of wireless frames, subframes, time slots, and symbols used in a wireless communication system.

[0014] Figure 4 This is the functional block diagram of the terminal.

[0015] Figure 5 This is a functional block diagram of a base station.

[0016] Figure 6 This is a diagram illustrating examples of the architectures of 5G RAT (5G Radio Access Technology) and 6G RAT.

[0017] Figure 7 This is a diagram illustrating examples of the architectures of 5G RAT and 6G RAT.

[0018] Figure 8 This is a diagram illustrating an example of the protocol stack for a terminal that simultaneously connects to both 5G RAN and 6G RAN.

[0019] Figure 9 This is a timing diagram illustrating an example of a terminal notifying MG settings to 5G and 6G nodes.

[0020] Figure 10 This is a timing diagram illustrating an example of a terminal notifying 5G and 6G nodes of settings related to inter-frequency measurements.

[0021] Figure 11 This is a timing diagram representing an example of a terminal notifying 5G and 6G nodes of settings related to the serving cell.

[0022] Figure 12 This is a timing diagram illustrating an example of a terminal notifying 5G and 6G nodes of DRX settings.

[0023] Figure 13 This is a timing diagram representing an example of a terminal reporting overheating to 5G and 6G nodes.

[0024] Figure 14 This is a diagram illustrating an example of a coordinating node set up between 5G and 6G nodes.

[0025] Figure 15 This diagram illustrates an example of a coordinating node set up between 5G and 6G nodes.

[0026] Figure 16 This diagram illustrates an example of a coordinating node set up between 5G and 6G nodes.

[0027] Figure 17 This is a diagram illustrating examples of the architectures of 4G RAT, 5G RAT, and 6G RAT.

[0028] Figure 18 This is a diagram illustrating examples of the architectures of 4G RAT, 5G RAT, and 6G RAT.

[0029] Figure 19 This is a diagram illustrating an example of the hardware structure of a base station and a terminal.

[0030] Figure 20 This is a diagram illustrating an example of vehicle structure. Detailed Implementation

[0031] The embodiments are described below with reference to the accompanying drawings. Furthermore, the same or similar reference numerals are used to denote the same function and structure, and their descriptions are omitted where appropriate.

[0032] (1) Structure of wireless communication system

[0033] Figure 1 The wireless communication system 10 shown is a wireless communication system following a method known as 5G. Alternatively, the wireless communication system 10 can also follow a method known as Beyond 5G, 5G Evolution, or 6G. The wireless communication system 10 can also be referred to as RAT (Radio Access Technology). In this case, the 5G-compliant wireless communication system 10 can be referred to as 5G RAT, and the 6G-compliant wireless communication system 10 can be referred to as 6GRAT.

[0034] The wireless communication system 10 can support massive MIMO (Multiple-Input Multiple-Output) which generates more directional beams by controlling wireless signals transmitted from multiple antenna elements, carrier aggregation (CA) which uses multiple component carriers (CC), and dual connectivity (DC) which communicates simultaneously with two base stations.

[0035] like Figure 1 As shown, the wireless communication system 10 includes a base station 100 (hereinafter also referred to as gNodeB (gNB) 100) constituting a RAN (Radio Access Network) 20 and a terminal 200 (hereinafter also referred to as user equipment (UE) 200) that communicates wirelessly with the gNB 100. The RAN 20 is connected to a core network (CN) 30.

[0036] For example Figure 6 As shown, RAN20 can be either 5G RAN 20A (compliant with 5G) or 6G RAN 20B (compliant with 6G). Furthermore, gNB100 is not limited to referring to base stations constituting 5G RAN 20A, but can also refer to base stations constituting 6G RAN 20B. In cases where the two are distinguished, for example... Figure 9 As shown, the former can be described as 5G RAN node 100A or 5G node 100A, and the latter can be described as 6G RAN node 100B or 6G node 100B.

[0037] CN30 consists of multiple network functions (NFs). Examples of NFs include AMF (Access and Mobility Management Function) 300 and NWDAF (Network Data Analytics Function) 400. AMF 300, for example, performs UE 200 registration. NWDAF 400, for example, performs CN30 optimization. Figure 6 As shown, CN30 can be either CN(5GC)30A conforming to 5G or CN(6GC)30B conforming to 6G.

[0038] The specific structure of the wireless communication system 10, such as the number of gNB100 and UE200, is not limited to... Figure 1 The example shown. Furthermore, RAN20 and CN30 can be simply referred to as "network".

[0039] The gNB100 can also be a base station with a centralized-radio access network (C-RAN) structure, comprising a distributed unit (DU) for connecting to the UE200 and a central unit (CU) for connecting to the network. In this case, the gNB100 can be replaced by a DU, a CU, or both. When the gNB100 is replaced by a DU, it can also be called gNB-DU. When the gNB100 is replaced by a CU, it can also be called gNB-CU. When the gNB100 is replaced by both a DU and a CU, the DU portion can be called gNB-DU, and the CU portion can be called gNB-CU.

[0040] Furthermore, the wireless communication system 10 can also support multiple frequency ranges (FRs). That is, such as Figure 2 As shown, the following FRs can be supported.

[0041] FR1: 410MHz~7.125GHz

[0042] FR2-1: 24.25GHz~52.6GHz

[0043] FR2-2: 52.6GHz~71GHz

[0044] FR3: 7.125GHz~24.25GHz

[0045] In FR1, a subcarrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5–100 MHz can be used. In FR2-1, an SCS of 60 or 120 kHz (or 240 kHz) and a BW of 50 MHz–400 MHz can be used.

[0046] In FR2-2, to avoid increasing phase noise, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a larger SCS can be applied.

[0047] FR3 fills the frequency band between FR1 and FR2-1. As long as it refers to the same frequency band, it can be called by different names. Furthermore, the band width (BW) and frequency response standard (SCS) involved in FR3 can be the same as those used for FR1 or FR2-1, or different BW and SCS can be used.

[0048] In addition, such as Figure 3 As shown, one time slot in the wireless communication system 10 consists of 14 symbols. While maintaining this structure, a larger (wider) SCS results in a shorter symbol period (and time slot period). Furthermore, the SCS is not limited to... Figure 3 The frequency shown can be, for example, 480kHz, 960kHz, etc.

[0049] Furthermore, the number of symbols constituting one time slot does not necessarily have to be 14 symbols; for example, it could be 28 or 56 symbols. Additionally, the number of time slots per subframe can vary depending on the SCS.

[0050] (2) Functional block structure of wireless communication system

[0051] (2.1) Functional block structure of the terminal

[0052] like Figure 4 As shown, the UE200 includes a wireless signal transceiver unit 210, an amplifier unit 220, a modem unit 230, a control signal / reference signal processing unit 240, an encoding / decoding unit 250, a data transceiver unit 260, and a control unit 270.

[0053] The wireless transceiver unit 210 transmits and receives wireless signals with the gNB 100. The wireless transceiver unit 210 can be configured as a transmitter sending wireless signals to the gNB 100 and a receiver receiving wireless signals from the gNB 100. The wireless signal may contain data or may be replaced by data. Transmission may be replaced by reports, notifications, etc. Reception may be replaced by settings, instructions, notifications, etc. Furthermore, settings can be implemented through setting information (information elements (IE)) at the Radio Resource Control (RRC) layer, and instructions can be implemented through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0054] The wireless transceiver unit 210 in this embodiment can receive a setting for a first measurement gap from a first wireless base station. The first measurement gap is a period during which communication with the serving cell of the first wireless base station is suspended to perform neighboring cell measurements. Furthermore, the wireless transceiver unit 210 can send the setting for the first measurement gap to a second wireless base station. Here, the first wireless base station can be a 5G node 100A. Furthermore, the second wireless base station can be a 6G node 100B. In this case, the neighboring cell can be a neighboring cell of the serving cell of the 5G node 100A. That is, the first measurement gap can be understood as a period during which communication with the serving cell of the 5G node 100A is suspended to measure the neighboring cells of the serving cell of the 5G node 100A.

[0055] The wireless transceiver unit 210 in this embodiment can receive a setting for a second measurement gap from the second wireless base station. The second measurement gap is a period during which communication with the serving cell of the second wireless base station is suspended to perform neighboring cell measurements. Furthermore, the wireless transceiver unit 210 can send the setting for the second measurement gap to the first wireless base station. In this case, the neighboring cell can be a neighboring cell of the serving cell of the 6G node 100B. That is, the second measurement gap can be understood as the period during which communication with the serving cell of the 6G node 100B is suspended to measure the neighboring cells of the serving cell of the 6G node 100B.

[0056] The measurement gap (MG) can also be understood as the period during which the UE200 suspends communication with the serving cell in order to perform measurements of neighboring cells. MG settings may include, for example, the MG length (MGL), the MG repetition period (MGRP), and the timing advance of the MG. Additionally, the MG can be set to match the period and window width of the SMTC window (SSB-based RRM Measurement Timing Configuration window) used for the measurement synchronization signal (SSB).

[0057] MG can be the measurement gap per UE or the measurement gap per frequency (FR1 / FR2 / FR3 measurement gap).

[0058] In the embodiment where the first or second measurement gap is per UE measurement gap, the wireless signal transceiver unit 210 not only suspends communication with the serving cell of the first wireless base station, but also suspends communication with the serving cell of the second wireless base station.

[0059] In the embodiment where the first or second measurement gap is a measurement gap for each frequency (e.g., FR2 measurement gap), the wireless transceiver unit 210 not only suspends communication with the serving cell operating in FR2 of the first wireless base station, but also suspends communication with the serving cell operating in FR2 of the second wireless base station. On the other hand, in this case, the wireless transceiver unit 210 does not suspend communication with the serving cell operating in FR1 of the first wireless base station or with the serving cells operating in FR1 / FR3 of the second wireless base station.

[0060] In the embodiment where the measurement is an inter-frequency measurement performed on a neighboring cell at a different frequency than the serving cell, the wireless transceiver unit 210 can receive from the first wireless base station the number of measurement identities associated with that frequency measurement. Furthermore, it can transmit the number of these measurement identities to the second wireless base station. Additionally, the wireless transceiver unit 210 can request the first wireless base station to increase or decrease the number of measurement identities. That is, the wireless transceiver unit 210 can also send a request to the first wireless base station to change the number of measurement identities.

[0061] The wireless transceiver unit 210 of this embodiment can receive from the first wireless base station the number of serving cells set by the first wireless base station for the UE 200. Furthermore, it can transmit this number of serving cells to the second wireless base station. In addition, the wireless transceiver unit 210 can request the first wireless base station to increase or decrease the number of serving cells. That is, the wireless transceiver unit 210 can also send a request to the first wireless base station to change the number of serving cells.

[0062] The wireless transceiver unit 210 of the embodiment can receive a first setting related to the intermittent reception (DRX) of data transmitted by the first wireless base station from the first wireless base station. Furthermore, the wireless transceiver unit 210 can transmit this first setting to a second wireless base station.

[0063] The wireless transceiver unit 210 of the embodiment can receive a second setting related to the intermittent reception (DRX) of data transmitted by the second wireless base station from the second wireless base station. Furthermore, the wireless transceiver unit 210 can transmit this second setting to the first wireless base station.

[0064] The wireless signal transceiver unit 210 of the embodiment can transmit the start time of DRX to the second wireless base station (or the first wireless base station).

[0065] The first setting (or the second setting) may include the DRX cycle setting. The DRX cycle setting may be, for example, a DRX long cycle configuration or a DRX short cycle configuration. Furthermore, the first setting (or the second setting) may also include the DRX receive duration setting. The DRX receive duration setting may be, for example, a DRX-onDurationTimer configuration.

[0066] The wireless transceiver unit 210 of the embodiment can send overload information to the first wireless base station and the second wireless base station, indicating that the UE 200 is in an overload state. In other words, the wireless transceiver unit 210 can report that the UE 200 is overheating. In addition, the wireless transceiver unit 210 can receive an instruction from the first wireless base station or the second wireless base station to terminate the simultaneous connection with the first wireless base station and the second wireless base station. This instruction can be understood as an instruction to change the stack mode of the UE 200. The instruction to change the stack mode of the UE 200 can be understood as an instruction to change from dual stack mode to single stack mode. In addition, regarding stack mode, please refer to "(3) Network Architecture in Dual Connection" described later.

[0067] For example, an overload state occurs when the settings of the first and second wireless base stations exceed the processing capacity of the UE200. Furthermore, an overload state can also occur, for example, when the UE200's battery level decreases, causing the UE200 to switch to a power-saving mode. Therefore, overload information can also be replaced with battery information.

[0068] The wireless transceiver unit 210 of the embodiment can transmit first setting information that the first wireless base station can set for the UE 200 to the first wireless base station. In addition, the wireless transceiver unit 210 can transmit second setting information that the second wireless base station can set for the UE 200 to the second wireless base station.

[0069] In addition, the first setting information (or the second setting information) may also include at least one of the following. Furthermore, the first setting information (or the second setting information) may be sent together with the overload information described above, or it may be sent independently.

[0070] • Number of DL / UL PCells or SCells set by the first (or second) wireless base station

[0071] • The size of the aggregated bandwidth (AQB) across all DL / UL carriers set by the first (or second) wireless base station for each frequency band (FR1 / FR2 / FR3).

[0072] • The number of DL / UL MIMO layers set by the first (or second) wireless base station for each frequency band (FR1 / FR2 / FR3) for the serving cell operating in each frequency band.

[0073] The amplification unit 220 is composed of a power amplifier (PA) or a low noise amplifier (LNA). The amplification unit 220 amplifies the wireless signal output from the wireless signal transceiver unit 210. Additionally, the amplification unit 220 amplifies the wireless signal output from the modem 230.

[0074] The modem 230 performs data modulation / demodulation, transmit power setting, and resource block allocation for each predetermined communication destination (gNB100 or other gNB100). CP-OFDM / DFT-S-OFDM can also be applied in the modem 230. Furthermore, DFT-S-OFDM can be used not only for the uplink (UL) but also for the downlink (DL).

[0075] The control signal and reference signal processing unit 240 performs related processing of control signals, such as Radio Resource Control (RRC) signaling, that are transmitted and received with the gNB100.

[0076] The control signal and reference signal processing unit 240 performs related processing on reference signals transmitted and received with the gNB100, such as demodulation reference signal (DMRS), phase tracking reference signal (PTRS), channel state information-reference signal (CSI-RS), sounding reference signal (SRS), and positioning reference signal (PRS).

[0077] In addition, the channels include control channels and data channels. Control channels include the Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PDCCH), Physical Random Access Channel (PRACH), and Physical Broadcast Channel (PBCH). Data channels include the Physical Uplink Shared Channel (PUSCH) and Physical Downlink Shared Channel (PDSCH).

[0078] The encoding / decoding unit 250 performs segmentation / linking and encoding / decoding of the data contained in the wireless signal for each predetermined communication destination (gNB100 or other gNB100).

[0079] Specifically, the encoder / decoder 250 decodes the data output from the modem 230 and concatenates the decoded data. Furthermore, the encoder / decoder 250 divides the data output from the data transceiver 260 into predetermined sizes and encodes the divided data.

[0080] The data transceiver unit 260 performs tasks such as assembling and decomposing data units (PDUs (Protocol Data Units) / SDUs (Service Data Units)) that constitute data between layers. These layers include the Media Access Control (MAC) layer, the Radio Link Control (RLC) layer, and the Packet Data Convergence Protocol (PDCP) layer. Furthermore, the data transceiver unit 260 performs error correction and retransmission control based on HARQ (Hybrid Automatic Repeat Request).

[0081] The control unit 270 controls the UE 200. For example, the control unit 270 controls the transmission and reception of wireless signals based on the wireless signal transceiver unit 210, the amplification based on the amplification unit 220, the data modulation / demodulation based on the modulation / demodulation unit 230, the signal processing based on the control signal / reference signal processing unit 240, the encoding / decoding based on the encoding / decoding unit 250, and the assembly / decomposition of data units based on the data transceiver unit 260.

[0082] The control unit 270 in this embodiment can be connected to both the first and second wireless base stations simultaneously. That is, the control unit 270 can perform dual connectivity (DC) with both the first and second wireless base stations. Furthermore, the control unit 270 can perform measurements of neighboring cells. Alternatively, the measurement of neighboring cells can be replaced by the measurement of the synchronization signal (SSB) of the neighboring cells, or by the measurement of the received quality of that SSB (e.g., Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR)).

[0083] The control unit 270 of the implementation method can determine the start time of the DRX described above.

[0084] The control unit 270 in this embodiment can terminate the connection with either the first wireless base station or the second wireless base station based on the aforementioned instruction to terminate simultaneous connection. That is, the control unit 270 can change from dual stack mode to single stack mode based on this instruction.

[0085] The control unit 270 in the embodiment can also determine which wireless base station to terminate the connection with based on the priority set for the first wireless base station and the second wireless base station. Furthermore, priority can also be understood as prioritizing communication with either the first or the second wireless base station.

[0086] The control unit 270 in this embodiment can also determine which wireless base station to suspend the connection based on the frequency range (FR). Furthermore, FR can also be understood as the FR used in communication with the first (or second) wireless base station. For example, if FR2 is used in communication with the first wireless base station and FR3 is used in communication with the second wireless base station, the control unit 270 can suspend the connection with the second wireless base station using FR3 based on reasons such as FR2 having a wider coverage area. However, the reasons and the wireless base station to be suspended are just examples and are not limited to this.

[0087] The control unit 270 in this embodiment can also determine whether to terminate the connection with a wireless base station based on the reception quality. Reception quality can be, for example, Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), or Signal-to-Interference plus Noise Ratio (SINR). Reception quality can be understood as the reception quality of the serving cell of the first (or second) wireless base station. For example, when the reception quality of the serving cell of the first wireless base station is better than that of the serving cell of the second wireless base station, the control unit 270 can terminate the connection with the second wireless base station. However, the wireless base station for which the connection is to be terminated is just one example and is not limited to this.

[0088] (2.2) Functional block structure of base station

[0089] like Figure 5 As shown, the gNB100 has a wireless signal transceiver unit 110 and a control unit 120.

[0090] The wireless transceiver unit 110 transmits and receives wireless signals with the UE 200. The wireless transceiver unit 110 can also be configured as a transmitter sending wireless signals to the UE 200 and a receiver receiving wireless signals from the UE 200. The wireless signals can contain data or can be replaced by data. Transmission can also be replaced by settings, indications, notifications, etc. Reception can also be replaced by reports, notifications, etc. Furthermore, settings can be implemented through setting information (information elements (IE)) at the Radio Resource Control (RRC) layer, and indications can be implemented through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0091] The wireless transceiver unit 110 of the embodiment is capable of receiving information transmitted by the wireless transceiver unit 210. Furthermore, the wireless transceiver unit 110 is capable of transmitting the information received by the wireless transceiver unit 210.

[0092] The control unit 120 controls the gNB100. For example, the control unit 120 controls the transmission and reception of wireless signals performed by the wireless signal transceiver unit 110.

[0093] (3) Network architecture in dual connectivity

[0094] Reference Figures 6 to 8 This indicates that UE200 performs simultaneous connection, i.e., performs dual connection (DC) network architecture.

[0095] Figure 6 and Figure 7 This indicates that UE200 performs 5G RAN20A and 6G RAN20B of DC, as well as CN30 (5GC30A and 6GC30B) connected to each RAN. Figure 6 This example illustrates an interface (IF) between 5G RAN20A and 6G RAN20B that enables communication of information such as settings for UE200. Figure 7 This indicates that no configuration is set between 5G RAN20A and 6G RAN20B. Figure 6 The IF statement shown is replaced by an example connecting 5GC30A and 6GC30B. Additionally, in... Figure 6 In the example shown, CN30 can be either 5GC30A or 6GC30B.

[0096] Figure 8 Indicates in Figure 7 The example provided illustrates the protocol stack of UE200, which performs DC operations on 5G RAN20A and 6G RAN20B. UE200 can independently possess both a protocol stack for 5G RAN and a protocol stack for 6G RAN. This type of protocol stack is called dual-stack. Furthermore, UE200 corresponding to dual-stack can also deactivate DC by migrating from dual-stack mode to single-stack mode, for example, communicating only with 5G RAN20A.

[0097] Protocol stacks typically include layers such as Physical (PHY), Media Access Control (MAC), Radio Link Control (RLC), Packet Data Convergence Protocol (PDCP), and Radio Resource Control (RRC). Furthermore, the protocol stack may include a Non-Access Layer (NAS) capable of connecting to the core network (CN).

[0098] like Figure 8 As shown, with NAS enabled, UE200 can request registration with at least one of 5GC30A and 6GC30B. UE200 can register with only one of 5GC30A and 6GC30B, or it can register with both 5GC30A and 6GC30B. The latter registration can also be referred to as dual registration.

[0099] (4) Operation of wireless communication system

[0100] (4.1) Topic

[0101] The issue of implementation involves a UE200 that is simultaneously connected to multiple RATs (specifically, multiple base stations).

[0102] (4.1.1) Topic 1

[0103] Consider that various parameters related to reception quality measurements are set independently by the base stations constituting the 5G RAN (hereinafter also referred to as 5G nodes) and the base stations constituting the 6G RAN (hereinafter also referred to as 6G nodes). For example, consider the measurement interval (MG) during which communication with the serving cell is suspended for neighboring cell measurements, the number of measurement identifiers associated with inter-frequency measurements, and the number of serving cells provided by the base station, all of which are set independently in the 5G and 6G nodes. However, depending on the network architecture, in some cases, the 5G and 6G nodes cannot recognize these parameters set in each other's nodes. In this case, scheduling may fail due to unrecognized MGs. Similarly, the number of measurement identifiers associated with inter-frequency measurements may be set beyond the upper limit that can be set for the UE, resulting in inter-frequency measurement failure for the UE. Likewise, the number of serving cells may be set beyond the upper limit that can be set for the UE, resulting in overheating.

[0104] (4.1.2) Topic 2

[0105] The settings related to DRX (Distributed Reception Default) are considered to be set independently by the base stations constituting the 5G RAN (hereinafter referred to as 5G nodes) and the base stations constituting the 6G RAN (hereinafter referred to as 6G nodes). However, if the DRX-related settings, such as the DRX interval, are different in the 5G nodes and 6G nodes, there are concerns about increased UE power consumption and faster battery depletion.

[0106] (4.1.3) Topic 3

[0107] Various settings are configured on the UE from the base stations constituting the 5G RAN (hereinafter referred to as 5G nodes) and the base stations constituting the 6G RAN (hereinafter referred to as 6G nodes). These settings include, for example, the maximum number of serving cells, the maximum bandwidth of carrier aggregation (CA), and the maximum number of MIMO layers. The load from these settings may exceed the UE's processing capacity, causing it to malfunction. Furthermore, there are concerns that the same problem may arise when the UE's battery is low, for example, due to the UE switching to power-saving mode.

[0108] (4.2) Example of an action

[0109] The following describes specific action examples. Additionally, in this manual, gNB100A (5G node 100A) can be replaced with 5G RAN20A, and gNB100B (6G node 100B) can be replaced with 6G RAN20B. Conversely, 5G RAN20A can be replaced with gNB100A (5G node 100A) constituting 5G RAN20A, and 6G RAN20B can be replaced with gNB100B (6G node 100B) constituting 6G RAN20B.

[0110] (4.2.1) Action Example 1

[0111] Reference Figures 9 to 11 Example 1 will be explained below. In Example 1, 5G node 100A and 6G node 100B are enabled to recognize the various parameters set for UE200 in each other's RAN.

[0112] (4.2.1.1) Action Example 1-1

[0113] like Figure 9 As shown, in Action Example 1-1, UE200 can send the MG setting notification received from 5G node 100A to 6G node 100B, and conversely, can send the MG setting notification received from 6G node 100B to 5G node 100A. The MG setting can be a per-UE measurement gap configuration indicating that UE200 suspends communication in any frequency band (FR), or it can be an FR1 / FR2 / FR3 measurement gap configuration indicating that UE200 suspends communication for each FR. For example, the FR1 measurement gap configuration indicates the setting of the MG that suspends communication using FR1 by UE200.

[0114] In addition, through, for example Figure 14 As shown, the coordination node 500 is set between 5G node 100A and 6G node 100B, and 5G node 100A and 6G node 100B can mutually recognize the MG set by 5G node 100A and the MG set by 6G node 100B.

[0115] As described above, in Action Example 1-1, UE200 can notify 6G node 100B of the MG settings received from 5G node 100A, and can also notify 5G node 100A of the MG settings received from 6G node 100B. Therefore, 5G node 100A and 6G node 100B can perform scheduling based on identifying MGs set by each other's RAN that UE200 cannot communicate with.

[0116] (4.2.1.2) Action Examples 1-2

[0117] like Figure 10 As shown in Action Example 1-2, UE200 can notify 6G node 100B of the settings for inter-freq measurements received from 5G node 100A, and conversely, can notify 5G node 100A of the settings for inter-freq measurements received from 6G node 100B. The settings for inter-freq measurements can be the number of inter-freq measurements performed by UE200; specifically, it can be the number of measurement identities set by 5G node 100A (or 6G node 100B) for UE200 to perform frequency measurements. Measurement identities can be associated with measurement objects. Furthermore, UE200 can also request the number of measurement identities set by 5G node 100A (or 6G node 100B). This request can specify a particular number or increase / decrease the currently set number of measurement identities.

[0118] Furthermore, UE200 can also notify 5G node 100A (or 6G node 100B) of the maximum number of measurement identifiers it can set for itself. The maximum number of measurement identifiers can, for example, be notified as UE capability of UE200. UE capability can include UE capability in single-stack mode and UE capability in dual-stack mode as described above. In addition, UE200 can also notify 5G node 100A (or 6G node 100B) whether it is operating in single-stack mode or dual-stack mode. Moreover, if the stack mode is switched, UE200 can also notify 5G node 100A (or 6G node 100B) only of the stack mode switch, without re-notifying the UE capability corresponding to the switched stack mode. This prevents frequent generation of updated UE capability signaling.

[0119] Furthermore, if the total number of measurement identifiers set by the 5G node 100A and the 6G node 100B exceeds the maximum number of measurement identifiers that can be set for itself (UE capability), the UE200 may notify the 5G node 100A (or the 6G node 100B) of a reconfiguration failure. Alternatively, the failure cause could also indicate that the maximum number of measurement identifiers has been exceeded.

[0120] In addition, through, for example Figure 14 As shown, a coordination node 500 is set between 5G node 100A and 6G node 100B. 5G node 100A and 6G node 100B can mutually recognize the frequency measurement settings set by 5G node 100A and the frequency measurement settings set by 6G node 100B.

[0121] As described above, in Action Example 1-2, UE200 can notify 6G node 100B of the frequency inter-measurement settings received from 5G node 100A, and can also notify 5G node 100A of the frequency inter-measurement settings received from 6G node 100B. Therefore, 5G node 100A and 6G node 100B can perform frequency inter-measurement settings based on recognizing the frequency inter-measurement settings set by each other's RAN.

[0122] (4.2.1.3) Action Examples 1-3

[0123] like Figure 11 As shown, in Action Examples 1-3, UE200 can notify 6G node 100B of the setting of the number of serving cells received from 5G node 100A, and can also notify 5G node 100A of the setting of the number of serving cells received from 6G node 100B. The setting of the number of serving cells can be based on each frequency. For example, the setting of the number of serving cells can include the number of serving cells for FR1, the number of serving cells for FR2, and the number of serving cells for FR3. Furthermore, UE200 can notify 6G node 100B of the frequency list measured in 5G RAN20A, and notify 5G node 100A of the frequency list measured in 6G RAN20B.

[0124] In addition, UE200 can also request the number of serving cells set by 5G node 100A (or 6G node 100B) from 5G node 100A (or 6G node 100B). This request can specify a particular number, or increase or decrease the currently set number of serving cells. Furthermore, as mentioned above, the requested number of serving cells can also be based on each frequency. For example, the requested number of serving cells can include the number of serving cells for FR1, the number of serving cells for FR2, and the number of serving cells for FR3.

[0125] Furthermore, UE200 can also report the following to 5G node 100A (or 6G node 100B). This reporting can, for example, be performed as a UE capability.

[0126] In 5G single-stack mode, this refers to the maximum number of serving cells that the 5G node 100A can configure for FR1, FR2, and FR3.

[0127] In 6G single-stack mode, this refers to the maximum number of serving cells for FR1, FR2, and FR3 that can be configured on the 6G node 100B.

[0128] In dual-stack mode, the maximum number of serving cells for FR1, FR2, and FR3 can be set for 5G node 100A, and the maximum number of serving cells for FR1, FR2, and FR3 can be set for 6G node 100B.

[0129] The UE200 reports the above information in advance, thereby allowing the UE200 to set the number of serving cells that does not pose a problem for it by simply notifying the 5G node 100A (or 6G node 100B) of single or double stack mode.

[0130] In addition, through, for example Figure 14 The coordination node 500, as shown, is set between 5G node 100A and 6G node 100B. 5G node 100A and 6G node 100B can mutually identify the number of serving cells (or the frequency list mentioned above) set by 5G node 100A and the number of serving cells (or the frequency list mentioned above) set by 6G node 100B.

[0131] As described above, in Operation Examples 1-3, UE200 can send the serving cell number setting notification received from 5G node 100A to 6G node 100B, and conversely, can send the serving cell number setting notification received from 6G node 100B to 5G node 100A. Therefore, 5G node 100A and 6G node 100B can set the serving cell number based on recognizing the serving cell number setting configured by each other's RAN.

[0132] (4.2.2) Action Example 2

[0133] Reference Figure 12 Example 2 of the action will be explained. Example 2 of the action enables 5G node 100A and 6G node 100B to recognize the DRX settings set for UE200 in each other's RAN.

[0134] like Figure 12 As shown, in Action Example 2, UE200 can notify 6G node 100B of the DRX configuration (5G DRXconfig) in its communication with 5G node 100A. Furthermore, it can notify 5G node 100A of the DRX configuration (6G DRX config) in its communication with 6G node 100B. The DRX configuration can be, for example, a DRX long cycle configuration, a DRX short cycle configuration, or a DRX-onDurationTimer configuration.

[0135] In addition, UE200 can notify 5G node 100A (or 6G node 100B) of the start time of DRX. Alternatively, the start time of DRX can also be a time specified by UE200.

[0136] In addition, 5G node 100A and 6G node 100B can be connected via, for example... Figure 14 As shown, a coordination node 500 is set up between 5G node 100A and 6G node 100B to identify the 5G DRX configuration and the 6G DRX configuration.

[0137] As described above, in Action Example 2, UE200 can notify 6G node 100B of the 5G DRX configuration and notify 5G node 100A of the 6G DRX configuration. Therefore, DRX-related settings can be commonalized in 5G node 100A and 6G node 100B, thus reducing the power consumption of UE200 involved in DRX.

[0138] (4.2.3) Action Example 3

[0139] Reference Figure 13 Example 3 of the action is explained. Example 3 reports to 5G node 100A and 6G node 100B that UE200, which is simultaneously connected to 5G node 100A and 6G node 100B, has exceeded its processing capacity, i.e., overheating, due to excessive settings.

[0140] like Figure 13 As shown, in Action Example 3, UE200 reports overheating to 5G node 100A and 6G node 100B. In this case, via, for example... Figure 14 As shown, a coordinating node 500 is set up between 5G node 100A and 6G node 100B. 5G node 100A and 6G node 100B can coordinate which node the UE 200 prioritizes communicating with (or disables communication with which node). Based on this coordination, 5G node 100A (or 6G node 100B) can instruct the UE 200 to switch its stack mode from dual-stack mode to single-stack mode.

[0141] UE200 can notify the 6G node 100B of the following in an overheating report.

[0142] • Number of DL / UL PCells or SCells set for 5G node 100A

[0143] • The size of the aggregated bandwidth across all DL / UL carriers set for each frequency band (FR1 / FR2 / FR3) of the 5G node 100A.

[0144] • The number of DL / UL MIMO layers for the serving cell operating in each frequency band (FR1 / FR2 / FR3) as configured for 5G node 100A.

[0145] The UE200 can notify the 5G node 100A of the following in an overheating report.

[0146] • Number of DL / UL PCells or SCells set for 6G node 100B

[0147] • The size of the aggregated bandwidth across all DL / UL carriers set for each frequency band (FR1 / FR2 / FR3) of the 6G node 100B.

[0148] • The number of DL / UL MIMO layers for the serving cell operating in each frequency band (FR1 / FR2 / FR3) as configured for the 6G node 100B.

[0149] UE200 can also determine allowedReducedConfigForOverheating for 5G node 100A and 6G node 100B respectively, and notify the determined allowedReducedConfigForOverheating.

[0150] The allowedReducedConfigForOverheating for 5G node 100A decisions and notifications can include the following.

[0151] • The maximum number of downlink / uplink PCells / SCells that the 5G RAN node is allowed to configure.

[0152] • The maximum aggregated bandwidth across all downlink / uplink carriers of FR1, FR2, and FR3, respectively, that the 5G RAN node is allowed to configure.

[0153] • The maximum number of downlink / uplink MIMO layers of each serving cell operating on FR1, FR2, and FR3 that the 5G RANnode is allowed to configure.

[0154] The allowedReducedConfigForOverheating for 6G node 100B decisions and notifications can include the following.

[0155] • The maximum number of downlink / uplink PCells / SCells that the 6G RAN node is allowed to configure.

[0156] • The maximum aggregated bandwidth across all downlink / uplink carriers of FR1, FR2, and FR3, respectively, that the 6G RAN node is allowed to configure.

[0157] • The maximum number of downlink / uplink MIMO layers of each serving cell operating on FR1, FR2, and FR3 that the 6G RANnode is allowed to configure.

[0158] In addition, UE200 can also send a request to 5G node 100A (or 6G node 100B) to switch from dual-stack mode to single-stack mode (to make communication with either node idle or deactivated). This request can be included in the overheating report mentioned above, or it can be sent separately (e.g., when UE200's battery is low). Based on this request, 5G node 100A and 6G node 100B can coordinate to prioritize (or disable) communication with either node, and instruct UE200 to switch its stack mode from dual-stack mode to single-stack mode.

[0159] When UE200 switches from dual-stack mode to single-stack mode, the node that UE200 prioritizes for communication can be determined based on a pre-determined priority. Priority can also be given to communication with base stations included in a RAT with wide coverage or base stations using lower frequencies (e.g., 5G node 100A). Furthermore, priority can also be given to setting communication with base stations included in a RAT with narrow coverage or base stations using higher frequencies (e.g., 6G node 100B) to an idle or deactivated state.

[0160] Priority can also be determined through coordination between 5G node 100A and 6G node 100B. This coordination can also be performed via the aforementioned coordinating node 500. For example, 5G node 100A can notify 6G node 100B that it is included in the wide coverage RAT. Through this notification, it can be determined whether communication with 5G node 100A is prioritized. The determined priority can be set by either 5G node 100A or 6G node 100B for UE200. Alternatively, UE200 can be notified which node is included in the wide coverage RAT, thus using this notification instead of prioritization.

[0161] On the other hand, priority can be determined by OAM (Operations, Administration and Maintenance) or CN30 (not shown) and set in 5G RAN20A and 6G RAN20B.

[0162] The priority can also be set by default to prioritize communication with the 5G node 100A. Additionally, the priority can also be set by default to prioritize communication with the 6G node 100B.

[0163] Priority can also be determined by the UE200. That is, the UE200 can decide which node to prioritize communication with. The UE200 can also determine which RAT has a wide coverage area and prioritize communication with nodes included in the RAT with the wide coverage area. The determination of coverage area size can, for example, be replaced by determining which frequency set by each node is lower. Alternatively, the UE200 can also determine which RAT / cell has good quality (e.g., Reference Signal Received Power (RSRP), Reference Signal Received Quality (RSRQ), Signal to Interference plus Noise Ratio (SINR)) and prioritize communication with nodes with good communication quality. Furthermore, prioritizing communication with one party's node can also be replaced by disabling communication with another party's node.

[0164] As described above, UE200 reports an overheating state in Action Example 3, thus enabling a switch from dual-stack mode to single-stack mode.

[0165] (4.2.4) Coordination Node

[0166] Reference Figures 14 to 16 This indicates the coordination node 500 that can be applied in the above action example. For example... Figure 14 As shown, a coordination node 500 is configured to primarily exchange information regarding UE200 settings between 5G node 100A and 6G node 100B. Alternatively, the coordination node 500 can also be configured in OAM, and can also be configured as follows: Figure 15 As shown, it is set in CN30 (e.g., 6GC30B). In this case, the coordinating node 500 can also be called the mobility manager 500.

[0167] Figure 16 It means Figure 15 A diagram illustrating a variation is shown. Specifically, it illustrates a case where the 6G node 100B is separated into a CU and a DU, and the CU is located in the 6GC30B instead of the 6G RAN20B. In this case, the coordinating node 500 can be understood as being contained within the 6G node 100B or the 6GC30B.

[0168] (5) Other implementation methods

[0169] The present invention has been described above according to the embodiments, but the present invention is not limited to these descriptions. It is obvious to those skilled in the art that various modifications and improvements can be made.

[0170] In the above embodiment, the first wireless base station is set as 5G node 100A and the second wireless base station is set as 6G node 100B. However, the first wireless base station can also be set as 6G node 100B and the second wireless base station as 5G node 100A. That is, the above embodiment can also be applied by replacing 5G node 100A and 6G node 100B with each other.

[0171] like Figure 17 and Figure 18 As shown, the network architecture of the above-described embodiment can also include 4G RAN20C and 4GC30C. In this case, UE200 can connect to any two RANs simultaneously, or it can connect to three RANs simultaneously. Furthermore, in Figure 17 In the case of, with Figure 6 The situation is the same; any one CN30 is sufficient. Figure 17 In this case, any two CN30s can exist.

[0172] The above examples of actions can be combined and applied in combination as long as they do not contradict each other.

[0173] Furthermore, the block diagrams used in the description of the above embodiments illustrate blocks based on function. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Moreover, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within the aforementioned single device or the aforementioned multiple devices.

[0174] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (structural part) that performs the sending function is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0175] For example, in one embodiment of this disclosure, the base station 100, terminal 200, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 19 This is a diagram illustrating an example of the hardware structure of a base station 100 and a terminal 200 according to an embodiment of the present disclosure. The base station 100 and the terminal 200 can be configured as a computer device that physically includes a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007, etc.

[0176] Additionally, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 100 and terminal 200 can be configured to include one or more of the devices shown in the figures, or it can be configured to not include any of them.

[0177] The functions of the base station 100 and the terminal 200 are implemented by reading predetermined software (programs) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of reading out and writing data in the memory 1002 and the storage device 1003.

[0178] The processor 1001 controls the computer as a whole, for example, by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc.

[0179] Furthermore, the processor 1001 reads programs (program code), software modules, data, etc., from at least one direction of memory 1002 in the storage device 1003 and the communication device 1004, and performs various processes accordingly. The program is used to cause the computer to perform at least a portion of the actions described in the above embodiments. Although it has been described that the various processes described above are performed by one processor 1001, the various processes described above can also be performed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented using more than one chip. Additionally, the program can also be transmitted from a network via a telecommunications line.

[0180] The memory 1002 is a computer-readable recording medium, and may be composed of at least one of the following: Read Only Memory (ROM), Erasable Programmable Memory (EPROM), Electrically Erasable Programmable Memory (EEPROM), Random Access Memory (RAM). The memory 1002 may be referred to as a register, cache memory, main memory (main storage device), etc. The memory 1002 can store programs (program code), software modules, etc., that are executable for performing the wireless communication method according to one embodiment of the present disclosure.

[0181] Storage device 1003 is a computer-readable recording medium, and may be composed of at least one of the following: optical discs such as CD-ROM (Compact Disc ROM), hard disk drives, floppy disks, magneto-optical discs (e.g., compact discs, digital multifunction discs, Blu-ray discs), smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. Storage device 1003 may also be referred to as an auxiliary storage device. The aforementioned storage medium may be, for example, a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0182] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. For example, it may also be referred to as a network device, network controller, network interface card (NIC), communication module, etc. The communication device 1004 may also be configured to include high-frequency switches, duplexers, filters, frequency synthesizers, etc., to implement at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0183] Input device 1005 is an input device that accepts input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, etc.). Output device 1006 is an output device that performs output to external sources (e.g., display, speaker, LED, etc.). Alternatively, input device 1005 and output device 1006 can also be integrated (e.g., a touch panel).

[0184] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses used between devices.

[0185] Furthermore, the base station 100 and the terminal 200 can 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), or a field-programmable gate array (FPGA), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0186] The notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, the notification of information may be implemented through physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling), broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or combinations thereof. Furthermore, RRC signaling may also be referred to as RRC messages, such as RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0187] The various forms / implementations described in this disclosure can also be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (x is, for example, an integer or a decimal), Future Radio Access (FRA), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE The system may include at least one of 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), other suitable systems, and next-generation systems based on, modified, generated, or specified from these systems. Furthermore, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0188] The processing steps, timing, and processes described in this disclosure can be rearranged without contradiction. For example, the elements of various steps are indicated using an illustrative order in the methods described in this disclosure, but are not limited to the specific order indicated.

[0189] In this disclosure, certain actions performed by the base station are sometimes also performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having a base station, it is obvious that various actions performed to communicate with a terminal can be performed by at least one of the base station and other network nodes besides the base station (e.g., considering an MME or S-GW, but not limited to these). The above illustration depicts a single other network node besides the base station, but it can also be a combination of multiple other network nodes (e.g., an MME and an S-GW).

[0190] It can output information and signals (information, etc.) from a higher (or lower) level to a lower (or higher) level. It can also be input or output through multiple network nodes.

[0191] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0192] The determination can be made by the value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by comparing numerical values ​​(e.g., comparing with a predetermined value).

[0193] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a notification of "It is X") is not limited to being explicit, but can also be implicit (e.g., without notification of the predetermined information).

[0194] Software, whether called software, firmware, middleware, microcode, hardware description language, or by other names, should be broadly interpreted as referring to commands, command sets, code, code segments, program code, programs, subroutines, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, execution threads, procedures, functions, etc.

[0195] In addition, software, commands, and information can also be sent and received via transmission media. For example, when using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), etc.) and wireless technologies (infrared, microwave, etc.) to send software from a webpage, server, or other remote source, at least one of these wired and wireless technologies is included within the definition of transmission media.

[0196] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description as a whole can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0197] Furthermore, the terms used in this disclosure and those necessary for understanding this disclosure may be replaced with terms that have the same or similar meanings. For example, at least one of the channel and symbol may also be a signal (signaling). Additionally, a signal may also be a message. Furthermore, a component carrier (CC) may also be referred to as carrier frequency, cell, frequency carrier, etc.

[0198] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0199] Furthermore, the information, parameters, etc., described in this disclosure may be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources may be indicated using indexes.

[0200] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0201] In this disclosure, the terms "Base Station (BS)," "wireless base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" are used interchangeably. Sometimes, terms such as macro cell, small cell, femtocell, and picocell are also used to refer to base stations.

[0202] A base station can accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, each of which can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head, RRH)). The terms "cell" or "sector" refer to a portion or the entire coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0203] In this disclosure, the base station sending information to the terminal can also be replaced by the base station instructing the terminal on information-based control / actions.

[0204] In this disclosure, the terms "terminal", "user terminal", "mobile station (MS)" and "user equipment (UE)" are used interchangeably.

[0205] For mobile stations, those skilled in the art sometimes also use the following terms: subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handheld device, user agent, mobile client, client, or some other appropriate terms.

[0206] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Additionally, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to an object capable of movement, with arbitrary speed. This also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, two-wheeled trailers, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., automobiles, airplanes, etc.), a mobile body moving in an unmanned manner (e.g., drones, autonomous vehicles, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0207] Furthermore, the base station in this disclosure can also be replaced by a terminal. For example, various forms / implementations of this disclosure can be applied to a structure that replaces the communication between the base station and the terminal with communication between multiple terminals (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the terminal 200 can also be configured to have the functions of the base station 100 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0208] Similarly, the terminal in this disclosure can be replaced by a base station. In this case, the base station 100 can also be configured to have the functions of the terminal 200 described above.

[0209] Figure 20 An example of the structure of vehicle 2001 is shown. For example... Figure 20As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gear shift lever 2006, left and right front wheels 2007, left and right 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.

[0210] The drive unit 2002 may consist of, for example, an engine, a motor, or a hybrid power system of an engine and a motor.

[0211] The steering unit 2003 includes at least a steering wheel (also called a steering wheel), configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0212] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2027 of the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an Electronic Control Unit (ECU).

[0213] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front or rear wheels obtained by speed sensor 2022, air pressure signals of the front or rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depress signal obtained by accelerator pedal sensor 2029, brake pedal depress signal obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0214] The Information Service Unit 2012 consists of various devices such as a car navigation system, audio system, speakers, television, and radio, which provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via communication modules 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0215] The Information Services Department 2012 may include input devices that accept input from external sources (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) and output devices that implement output to external sources (such as monitors, speakers, LED lights, touch panels, etc.).

[0216] The Driver Assistance System 2030 comprises various devices used to provide functions such as preventing accidents or reducing the driver's workload, including millimeter-wave radar, light detection and ranging (LiDAR), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to realize driver assistance or autonomous driving functions.

[0217] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 2001 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 2029 in the vehicle 2001 via the communication port 2033.

[0218] The communication module 2013, controlled by the microprocessor 2031 of the electronic control unit 2010, is a communication device capable of communicating with external devices. For example, it can transmit and receive various types of information with external devices via wireless communication. The communication module 2013 can be located inside or outside the electronic control unit 2010. External devices can be, for example, base stations, mobile stations, etc.

[0219] The communication module 2013 can also wirelessly transmit at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2029 described above, the information obtained based on those signals, and the information obtained via the information service unit 2012 based on input from an external source (user) to an external device. The electronic control unit 2010, the various sensors 2021-2029, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 can contain information based on the aforementioned inputs.

[0220] The communication module 2013 receives various information (traffic information, signal information, inter-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 of the vehicle. The information service unit 2012 can also be referred to as an output unit that outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or the data / information decoded from the PDSCH).

[0221] Furthermore, the communication module 2013 stores various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control components of the vehicle 2001, such as the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gearshift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, and sensors 2021-2029, based on the information stored in the memory 2032.

[0222] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining as actions that have been "judged" or "determined." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in storage) as actions that have been "judged" or "determined." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing as actions that have been "judged" or "determined." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0223] The terms “connected,” “coupled,” or any variations thereof refer to any direct or indirect connection or combination between two or more elements, including situations where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, they are “connected” or “coupled” to each other using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions).

[0224] The reference signal can be abbreviated as RS, or it can be called a pilot signal depending on the standard applied.

[0225] As used in this disclosure, the word "based on" does not mean "based on only" unless otherwise expressly stated. In other words, the word "based on" means both "based on only" and "based on at least".

[0226] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements can be taken, or that in any form the first element must precede the second element.

[0227] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0228] When the terms "include," "including," and their variations are used in this disclosure, these terms, like the term "comprising," imply inclusion. Furthermore, the term "or" as used in this disclosure does not refer to XOR.

[0229] A radio frame can consist of one or more frames in the time domain. Each frame in the time domain is called a subframe. A subframe can also consist of one or more time slots in the time domain. A subframe can have a fixed duration (e.g., 1 ms) independent of the parameter set (numerology).

[0230] A parameter set can be communication parameters applied to at least one of the transmission and reception of a signal or channel. For example, a parameter set can represent at least one of the following: subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering processing performed by the transceiver in the frequency domain, and specific windowing processing performed by the transceiver in the time domain.

[0231] In the time domain, a time slot can be composed of one or more symbols (OFDM (Orthogonal Frequency Division Multiplexing) symbols, SC-FDMA (Single Carrier Frequency Division Multiple Access) symbols, etc.). A time slot can be a time unit based on a set of parameters.

[0232] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0233] Radio frames, subframes, time slots, mini-time slots, and symbols all represent time units for transmitting signals. Radio frames, subframes, time slots, mini-time slots, and symbols can each be referred to by other corresponding names.

[0234] For example, a single subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a single time slot or a single mini-time slot can also be called a TTI. That is, at least one of a subframe or TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1 to 13 symbols), or a period longer than 1ms. Furthermore, the unit representing TTI may not be called a subframe, but rather a time slot, mini-time slot, etc.

[0235] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal) to each terminal in units of TTI. However, the definition of TTI is not limited to this.

[0236] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than the TTI.

[0237] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of the schedule can be controlled.

[0238] A TTI with a duration of 1ms is also called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0239] Additionally, a long TTI (e.g., a normal TTI, a subframe, etc.) can be replaced with a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can be replaced with a TTI with a duration of less than a long TTI but more than 1 ms.

[0240] A resource block (RB) is a unit of resource allocation in both the time and frequency domains. In the frequency domain, it can contain one or more consecutive subcarriers. The number of subcarriers contained in an RB can be the same regardless of the parameter set, for example, it can be 12. The number of subcarriers contained in an RB can also be determined based on the parameter set.

[0241] Furthermore, the temporal domain of an RB can contain one or more symbols, which can be a time slot, a mini-time slot, a subframe, or the length of a TTI. A TTI, a subframe, etc., can each be composed of one or more resource blocks.

[0242] In addition, one or more RBs can also be called Physical Resource Block (PRB), Sub-Carrier Group (SCG), Resource Element Group (REG), PRB Pair, RB Pair, etc.

[0243] Furthermore, a resource block can consist of one or more resource elements (REs). For example, one RE can be a radio resource area consisting of one subcarrier and one symbol.

[0244] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) represents a subset of contiguous common resource blocks (RBs) used for a specific parameter set on a given carrier. Here, common RBs are determined by their indices relative to a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0245] A BWP can include a UL BWP and a DL BWP. One or more BWPs can be set for a UE within a single carrier.

[0246] At least one of the configured BWPs can be active, and the scenario of the UE transmitting or receiving predetermined signals / channels outside of the active BWP is not considered. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0247] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other structures can be varied in many ways.

[0248] The term "maximum transmit power" as used in this disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power, or the rated maximum transmit power.

[0249] In this disclosure, for example, in cases where articles are added through translation, such as in English (a, an, and the), this disclosure also includes cases where the noun following these articles is in a plural form.

[0250] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Additionally, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0251] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0252] (Postscript)

[0253] The above disclosure can also be expressed as follows.

[0254] The first feature is a terminal having: a control unit that is simultaneously connected to a first wireless base station and a second wireless base station; a receiving unit that receives from the first wireless base station a first setting related to intermittent reception of data transmitted by the first wireless base station; and a transmitting unit that transmits the first setting to the second wireless base station.

[0255] In the first feature, the receiving unit receives a second setting related to the intermittent reception of data transmitted by the second wireless base station from the second wireless base station, and the transmitting unit transmits the second setting to the first wireless base station.

[0256] The terminal with the third feature is in the first or second feature, wherein the first setting includes the period setting for intermittent reception.

[0257] The terminal with the fourth feature is in any one of the first to third features, wherein the first setting includes the reception period setting in the intermittent reception.

[0258] In the fifth feature, in any one of the first to fourth features, the transmitting unit sends the start time of the intermittent reception to the second wireless base station.

[0259] In the fifth feature, the control unit determines the start time of the sixth feature of the terminal.

[0260] Label Explanation

[0261] 10: Wireless Communication System

[0262] 20: RAN

[0263] 20A: 5G RAN

[0264] 20B: 6G RAN

[0265] 20C: 4G RAN

[0266] 30:CN

[0267] 30A: 5GC

[0268] 30B: 6GC

[0269] 30C: 4GC

[0270] 100: Base station

[0271] 100A: 5G node

[0272] 100B: 6G node

[0273] 110: Wireless Signal Transceiver Unit

[0274] 120: Control Department

[0275] 200: Terminal

[0276] 210: Wireless Signal Transceiver Unit

[0277] 220: Enlarged section

[0278] 230: Modulation and Demodulation Section

[0279] 240: Control Signal & Reference Signal Processing Unit

[0280] 250: Encoding / Decoding Section

[0281] 260: Data Transceiver Department

[0282] 270: Control Department

[0283] 300: AMF

[0284] 400: NWDAF

[0285] 500: Coordination Node

[0286] 1001: Processor

[0287] 1002: Memory

[0288] 1003: Storage device

[0289] 1004: Communication device

[0290] 1005: Input device

[0291] 1006: Output device

[0292] 1007: Bus

[0293] 2001: Vehicles

[0294] 2002: Drive Unit

[0295] 2003: Steering Unit

[0296] 2004: Accelerator Pedal

[0297] 2005: Brake Pedal

[0298] 2006: Gear Shift

[0299] 2007: Left and right front wheels

[0300] 2008: Left and right rear wheels

[0301] 2009: Axle

[0302] 2010: Electronic Control Department

[0303] 2012: Information Services Department

[0304] 2013: Communication Module

[0305] 2021: Current Sensor

[0306] 2022: Speed ​​Sensor

[0307] 2023: Barometric Pressure Sensor

[0308] 2024: Vehicle Speed ​​Sensor

[0309] 2025: Accelerometer

[0310] 2026: Brake Pedal Sensor

[0311] 2027: Gearshift Sensor

[0312] 2028: Object Detection Sensor

[0313] 2029: Accelerator Pedal Sensor

[0314] 2030: Driver Assistance Systems Department

[0315] 2031: Microprocessors

[0316] 2032: Memory (ROM, RAM)

[0317] 2033: Communication port (IO port)

Claims

1. A terminal having: The control unit is simultaneously connected to the first wireless base station and the second wireless base station; The receiving unit receives from the first wireless base station a first setting related to the intermittent reception of data transmitted by the first wireless base station; and The transmitting unit sends the first setting to the second wireless base station.

2. The terminal according to claim 1, wherein, The receiving unit receives a second setting related to the intermittent reception of data transmitted by the second wireless base station from the second wireless base station. The transmitting unit sends the second setting to the first wireless base station.

3. The terminal according to claim 1, wherein, The first setting includes the period setting for the intermittent reception.

4. The terminal according to claim 3, wherein, The first setting includes the reception period setting in the intermittent reception.

5. The terminal according to claim 1, wherein, The transmitting unit sends the start time of the intermittent reception to the second wireless base station.

6. The terminal according to claim 5, wherein, The control unit determines the start time.

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