Terminal, wireless base station, and wireless communication method

Abstract

A terminal receives, from a wireless base station, guaranteed communication quality information indicating communication quality that can be guaranteed in a mobile communication network, and assumes that the communication quality is guaranteed at least during a specific period on the basis of the received guaranteed communication quality information.

Description

Technical Field

[0001] This disclosure relates to terminals, wireless base stations, and wireless communication methods that support communication quality assurance. Background Technology

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

[0003] In 5G, the reliability of Ultra Reliable Low Latency Communication (URLLC) has been studied to achieve a rate as high as 99.9999%, while in 6G, it is envisioned to further improve by an order of magnitude (99.99999%) as the target value (Non-Patent Literature 1).

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: NTT Docomo, “Docomo 6G White Paper Version 5.0”, [Online] July 2023, Internet <URL:https: / / www.docomo.ne.jp / binary / pdf / corporate / technology / whitepaper_6g / DOCOMO_6G_White_PaperJP_20221116.pdf> Summary of the Invention

[0007] Mobile communication services in 5G and 6G that include URLLC are essentially public network services targeting a large number of unspecified users, and are primarily based on best-effort service.

[0008] Such mobile communication networks based on best-effort service have the following problems: for example, they cannot cope with short-term and explosive increases in traffic that may occur when there are dense user equipment (UE) terminals in a specific area, such as at an event or concert venue.

[0009] In particular, 6G envisions an increase in use cases requiring specific communication quality assurance, such as those for particular industries. Given this situation, the importance of communication quality assurance, both for mission-critical applications and for general users, is further enhanced.

[0010] Therefore, the following disclosure is made in view of the circumstances and its purpose is to provide terminals, wireless base stations and wireless communication methods that can ensure a certain level of communication quality.

[0011] One aspect of this disclosure is a terminal (UE 200A) comprising: a receiving unit (control signal / reference signal processing unit 240) that receives guaranteed communication quality information from a wireless base station, the guaranteed communication quality information representing the communication quality that can be guaranteed in a mobile communication network; and a control unit (control unit 270) that, based on the received guaranteed communication quality information, envisions that the communication quality is guaranteed at least for a specific period. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the wireless communication system 10.

[0013] Figure 2 This is a diagram illustrating an example of the structure of wireless frames, subframes, and time slots used in the wireless communication system 10.

[0014] Figure 3 This is the functional block structure diagram of gNB100, UE200A, and UE200B.

[0015] Figure 4 This is a diagram illustrating a communication timing example (one of) between the UE and gNB in ​​the first embodiment of the operation example 1.

[0016] Figure 5 Example of communication timing between UE and gNB in ​​the first embodiment of the operation example 1 is shown (second example).

[0017] Figure 6 This is a diagram illustrating the communication timing example (third example) between the UE and gNB in ​​the first embodiment of the operation example 1.

[0018] Figure 7 This is a diagram showing the correspondence between the ID of Operation Example 2 of the first embodiment and the minimum quality assurance request.

[0019] Figure 8 This is a diagram showing the correspondence between the ID of the first embodiment's operation example 2 and the minimum quality guarantee permission.

[0020] Figure 9 This is a diagram illustrating an example of resource allocation for a minimum quality guarantee license notification in the first embodiment of Operation Example 2.

[0021] Figure 10 This is a diagram illustrating an example of resource allocation for minimum quality assurance in Operation Example 3 of the first embodiment.

[0022] Figure 11 This is a diagram illustrating the structure of a cell for minimum quality assurance (MQA) and other cells for both non-MQAA and MQAA UEs, as well as an example of operation 3 of the first embodiment.

[0023] Figure 12 This is a diagram illustrating an example of the minimum quality assurance period for Operation Example 4 of the first embodiment.

[0024] Figure 13 This is a diagram illustrating an example of operation 4 of the first embodiment, showing a display example (smartphone) for enabling the user to identify that they are in the minimum quality assurance period.

[0025] Figure 14 This is a diagram illustrating an example of operation 4 of the first embodiment, used to enable the user to identify that the device is in the minimum quality assurance period (smartwatch).

[0026] Figure 15 This is a diagram illustrating a communication timing example (one of) between the UE and gNB in ​​the first embodiment of the operation example 6.

[0027] Figure 16 This is a diagram illustrating the communication timing example (second example) between the UE and gNB in ​​the first embodiment of the operation example 6.

[0028] Figure 17 This is a diagram showing an example of the SSB setting in the second embodiment's operation example 1-1.

[0029] Figure 18 This is a diagram illustrating a configuration example of a normal cell and a dedicated cell for a high-priority UE (UE) in Operation Example 1 of the second embodiment.

[0030] Figure 19 This is a diagram illustrating an example of the hardware structure of gNB100 and UE200A, UE200B.

[0031] Figure 20 This is a diagram showing a structural example of vehicle 2001. Detailed Implementation

[0032] 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.

[0033] (1) Overall general structure of wireless communication system

[0034] Figure 1This is a schematic diagram of the overall structure of the wireless communication system 10 according to this embodiment. The wireless communication system 10 is a wireless communication system following a protocol known as Beyond 5G, 5G Evolution, or 6G (hereinafter referred to as 6G), and includes a radio access network 20 (hereinafter referred to as RAN20), and terminals 200A and 200B (User Equipment 200A, 200B, hereinafter referred to as UE200A, UE200B). Alternatively, the wireless communication system 10 may also be a wireless communication system following a protocol other than 6G, such as 5G New Radio (NR).

[0035] RAN20 includes a radio base station 100 (hereinafter referred to as gNB100). Furthermore, the specific structure of the wireless communication system 10, which includes gNBs and UEs, is not limited to [specific details needed]. Figure 1 The example shown.

[0036] RAN20 actually includes multiple RAN nodes, specifically multiple gNBs (or ng-eNBs), connected to a 6G-compliant core network. Additionally, RAN20 and the core network can be simply referred to as "network". Furthermore, the network formed by UE200A, UE200B, RAN20 (including gNB100), and the core network can also be called a Public Land Mobile Network (PLMN).

[0037] The gNB100 is a 6G-compliant wireless base station that performs 6G-compliant wireless communication with UE200A and UE200B. By controlling the wireless signals transmitted from multiple antenna elements, the gNB100, along with UE200A and UE200B, can support massive MIMO with higher directional beamforming, carrier aggregation (CA) using multiple component carriers (CC), and dual connectivity (DC) that enables simultaneous communication between the UE and various nodes of multiple NG-RAN nodes.

[0038] The DC can be of the following types: Multi-RAT Dual Connectivity (MR-DC) utilizing multiple wireless access technologies, or Dual Connectivity utilizing only 6G. Furthermore, in MR-DC, any gNB can constitute the master node (MN), and other gNBs can constitute slave nodes (SN).

[0039] In addition, the wireless communication system 10 can support multiple frequency ranges (FRs). Specifically, the wireless communication system 10 can support the following FRs.

[0040] FR1: 410 MHz~7.125 GHz

[0041] FR2: ·FR2-1: 24.25 GHz~52.6 GHz • FR2-2: Over 52.6 GHz ~ 71 GHz In FR1, sub-carrier spacing (SCS) of 15, 30, or 60 kHz can be used, with a bandwidth (BW) of 5–100 MHz. FR2 is a higher frequency than FR1, and can use SCS of 60 or 120 kHz (including 240 kHz), with a bandwidth (BW) of 50–400 MHz.

[0042] Furthermore, the wireless communication system 10 can also support frequency bands higher than FR2. Specifically, the wireless communication system 10 can support frequency bands from 52.6 GHz up to 114.25 GHz.

[0043] In addition, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) / Discrete Fourier Transform-Spread (DFT-S-OFDM) with larger sub-carrier spacing (SCS) can also be applied. Moreover, DFT-S-OFDM can be applied not only to the uplink (UL) but also to the downlink (DL).

[0044] Figure 2 An example of the structure of wireless frames, subframes, and time slots used in wireless communication system 10 is shown.

[0045] like Figure 2 As shown, one time slot consists of 14 symbols. The larger (wider) the SCS, the shorter the symbol period (and time slot period). Furthermore, the number of symbols constituting one time slot does not necessarily have to be 14 symbols (e.g., 28, 56 symbols). Additionally, the number of time slots per subframe can vary depending on the SCS. Furthermore, the SCS can also be wider than 240kHz (e.g., ...). Figure 2 As shown, 480kHz and 960kHz).

[0046] in addition, Figure 2The time direction (t) shown can also be referred to as the time domain, symbol period, or symbol time, etc. Furthermore, the frequency direction can also be referred to as the frequency domain, resource block (RB), resource block group (RBG), subcarrier, BWP (Bandwidth part), etc.

[0047] Furthermore, in the wireless communication system 10, a mechanism to guarantee a certain level of communication quality can be implemented for UE200A and UE200B. This "certain level of communication quality," simply put, can refer to the minimum guaranteed communication quality, but is not necessarily limited to that minimum. For example, multiple levels of communication quality can be selectively guaranteed based on network conditions, or different levels of communication quality can be guaranteed based on the capabilities of the UE.

[0048] A guarantee of communication quality can mean that the service will always be available at that quality level during the guarantee period. In this sense, a service with guaranteed communication quality can be interpreted as a service as opposed to a best-effort service. However, regardless of the level of communication quality, for example, Ultra-Reliable Low-Latency Communication (URLLC) is a best-effort service where the quality of communication is correspondingly high but is not necessarily guaranteed. On the other hand, a service that can always enjoy the quality of communication even at a low level can be considered a service with guaranteed communication quality.

[0049] There are no specific limitations on the content of communication quality; typically, it can include throughput, latency, and the number of simultaneous UE connections. Specific examples of communication quality will be described later.

[0050] In this embodiment, different communication qualities can be guaranteed in UE200A and UE200B. Alternatively, any UE can be used as the object for guaranteeing communication quality.

[0051] A UE that is the object of communication quality assurance can also be called a High priority UE (high priority UE, high priority terminal). A High priority UE can be replaced by a UE whose communication quality is guaranteed, a UE that requests communication quality assurance, a UE whose minimum quality is guaranteed, a Guaranteed UE (guaranteed UE), or a UE that supports quality assurance functions.

[0052] A UE that is not subject to communication quality assurance can also be referred to as a Low priority UE. A Low priority UE can be replaced by a UE whose communication quality is not guaranteed, a UE that has not requested communication quality assurance, a non-guaranteed UE, or a UE that does not support quality assurance functions.

[0053] Furthermore, UE200A (and UE200B as well) can act as either a High priority UE or a Low priority UE based on its capabilities or status. In other words, whether UE200A is a High priority UE can be dynamically changed.

[0054] (2) Functional block structure of wireless communication system

[0055] Next, the functional block structure of the wireless communication system 10 will be described. Specifically, the functional block structure of UE200A will be described. Figure 3 This is the functional block structure diagram of gNB100, UE200A, and UE200B.

[0056] like Figure 3 As shown, UE200A (and UE200B as well) includes a wireless signal transceiver unit 210, an amplifier unit 220, a modem unit 230, and a control signal transceiver unit 210. The reference signal processing unit 240, the encoding / decoding unit 250, the data transceiver unit 260, and the control unit 270 are included.

[0057] In addition, Figure 3 Only the main functional blocks relevant to the description of the implementation are shown. It should be noted that the UE200A (gNB100) has other functional blocks (e.g., power supply section, etc.). Furthermore, Figure 3 This shows the functional block structure of UE200A. For information on the hardware structure, please refer to [link / reference needed]. Figure 19 .

[0058] The radio transceiver unit 210 transmits and receives radio signals following 6G standards. By controlling the radio (RF) signals transmitted from multiple antenna elements, the radio transceiver unit 210 can support Massive MIMO (which generates more directional beams), carrier aggregation (CA) that uses multiple component carriers (CC), and dual connectivity (DC) that enables simultaneous communication between the UE and each node of two NG-RAN nodes.

[0059] Furthermore, in this embodiment, UE200A can operate as either a High-priority UE (high-priority terminal) that is guaranteed for communication quality or a Low-priority UE that is not guaranteed for communication quality. The radio transceiver unit 210 can use radio resources different from those of the Low-priority UE to perform wireless communication as a High-priority UE whose specific communication quality is guaranteed in the mobile communication network. In this embodiment, the radio transceiver unit 210 can be configured as a communication unit.

[0060] Radio resources used by high-priority UEs can be exclusively secured separately from those used by low-priority UEs (or even from sources other than high-priority UEs). However, a portion of these radio resources can be shared with low-priority UEs. Radio resources can include resources in any area capable of performing wireless communication, such as the time domain, frequency domain, and spatial domain. Furthermore, there is no particular limitation on the unit of radio resources.

[0061] The amplification unit 220 is composed of a power amplifier (PA) and a low-noise amplifier (LNA). The amplification unit 220 amplifies the signal output from the modem 230 to a predetermined power level. Furthermore, the amplification unit 220 amplifies the RF signal output from the wireless transceiver unit 210.

[0062] The modem 230 performs data modulation / demodulation, transmit power setting, and resource block allocation for each predetermined communication destination (gNB100, etc.). Cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) / discrete Fourier transform-spread (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).

[0063] control signals The reference signal processing unit 240 performs processing related to various control signals transmitted and received by the UE200A, as well as processing related to various reference signals transmitted and received by the UE200A.

[0064] Specifically, control signals The reference signal processing unit 240 receives various control signals transmitted from the gNB 100 via a predetermined control channel, such as control signals from the Radio Resource Control (RRC) layer. Furthermore, the control signals... The reference signal processing unit 240 sends various control signals to the gNB100 via a predetermined control channel.

[0065] control signals The reference signal processing unit 240 performs processing using reference signals (RS) such as demodulation reference signal (DMRS) and phase tracking reference signal (PTRS).

[0066] DMRS is a terminal-specific reference signal (pilot signal) used to estimate fading channels used in data demodulation, and is known between the base station and the terminal. PTRS is a terminal-specific reference signal used to estimate phase noise, which is a problem in the high-frequency band.

[0067] In addition to DMRS and PTRS, the reference signal may also include Channel State Information-Reference Signal (CSI-RS), Sounding Reference Signal (SRS), and Positioning Reference Signal (PRS) for location information.

[0068] In addition, channels include control channels and data channels. Control channels may include PDCCH (Physical Downlink Control Channel), PUCCH (Physical Uplink Control Channel), RACH (Random Access Channel, containing downlink control information (DCI) including the Random Access Radio Network Temporary Identifier (RA-RNTI)), and Physical Broadcast Channel (PBCH), etc.

[0069] In addition, data channels include PDSCH and PUSCH, etc. Data can refer to data transmitted via data channels.

[0070] In addition, control signals The reference signal processing unit 240 can receive a guarantee license representing a specific communication quality guarantee in the mobile communication network from the network (specifically, gNB100). In this embodiment, the control signal The signal processing unit 240 can be configured as a receiving unit with guaranteed reception.

[0071] A warranty can be issued for either the minimum guaranteed quality of communication in a mobile communication network or for at least one of several different quality levels. Warranties can be sent via low-level signaling (e.g., DCI) or high-level signaling (e.g., RRC).

[0072] control signals The reference signal processing unit 240 can send a guarantee request to the gNB 100, requesting a guarantee of specific communication quality in the mobile communication network. In this embodiment, the control signal... The reference signal processing unit 240 can be configured as a transmitting unit for sending guarantee requests. The guarantee request can be sent via low-level signaling or high-level signaling.

[0073] control signals Reference signal processing unit 240 can send a guarantee request that includes at least one of the following: guarantee period, start timing, end timing, guarantee priority, and guarantee object for specific communication quality. gNB100 can send the aforementioned guarantee grant to UE200A based on the guarantee request sent from UE200A. Specific examples of guarantee requests and guarantee grants will be described later.

[0074] In addition, control signals The reference signal processing unit 240 can receive guaranteed communication quality information from the gNB 100, indicating the communication quality that can be guaranteed in the mobile communication network. In this embodiment, the control signal The reference signal processing unit 240 can be configured as a receiving unit for receiving information that ensures communication quality.

[0075] control signals The reference signal processing unit 240 can receive guaranteed communication quality information corresponding to the capability of the UE200A. The guaranteed communication quality information may include one or more parameters representing the guaranteed communication quality in the mobile communication network.

[0076] For example, control signals The reference signal processing unit 240 can receive guaranteed communication quality information including at least one of the following: throughput in UE200A, latency, throughput in the cell, reliability, and positioning accuracy of UE200A.

[0077] control signals The reference signal processing unit 240 can send an information request to the gNB100 requesting the guaranteed communication quality information. In this embodiment, the control signal... The reference signal processing unit 240 can be configured as a sending unit for sending information requests.

[0078] Information guaranteeing communication quality and information requests can be sent via either low-level signaling or high-level signaling. gNB100 can send the aforementioned information guaranteeing communication quality to UE200A based on the information request sent from UE200A. Specific examples of information requests and information guaranteeing communication quality will be described later.

[0079] In addition, control signals The reference signal processing unit 240 can receive information from the gNB 100 indicating whether acceptance of quality assurance communication guaranteeing a specific communication quality has been accepted in the mobile communication network. In this embodiment, the control signal The reference signal processing unit 240 can be configured as a receiving unit for receiving and accepting information.

[0080] Quality-assured communication refers to communication conducted through a mobile communication network (wireless communication system 10) that guarantees a specific level of communication quality. From this perspective, quality-assured communication can also be interpreted as accepting connections from high-priority UEs.

[0081] Acceptance information may simply indicate acceptance of a quality assurance communication (High priority UE), but it may also include parameters related to that communication. For example, acceptance information may include parameters related to the PRACH (Physical RACH) resources used by the High priority UE, the cell used by the High priority UE, etc. Acceptance information can be sent via low-level signaling or high-level signaling.

[0082] In addition, control signals The reference signal processing unit 240 can receive condition information from the gNB 100 representing guarantee conditions for ensuring specific communication quality in a mobile communication network. In this embodiment, the control signal... The reference signal processing unit 240 can be configured as a receiving unit for receiving condition information.

[0083] The guarantee conditions can be determined on the network side. Guarantee conditions (also known as quality assurance conditions) can be interpreted as the performance or state that the UE200A should possess to guarantee specific communication quality in a mobile communication network. This performance or state may include the reception quality (radio wave strength, etc.) of the UE200A, the area where the UE200A is located, etc.

[0084] control signals The reference signal processing unit 240 can send non-compliance information, indicating that the UE200A does not meet the aforementioned guarantee conditions, to the gNB100. In this embodiment, the control signal The reference signal processing unit 240 can be configured as a transmitting unit that transmits information that does not meet the requirements.

[0085] Specifically, control signals The reference signal processing unit 240 may send a non-compliance message if the control unit 270 determines that the guarantee conditions transmitted from the gNB 100 are not met. The condition information and the non-compliance message can be sent via low-level signaling or high-level signaling.

[0086] In addition, control signals The reference signal processing unit 240 can send capability information representing the terminal capabilities of UE200A to the network. In particular, in this embodiment, the control signal... Reference signal processing unit 240 can send UE Capability Information (UE Capability Information) related to communication quality assurance to gNB100 (refer to...) Figure 1 ).

[0087] For example, control signals The reference signal processing unit 240 can send UE Capability Information, indicating whether it has the terminal capabilities required to be a Highpriority UE, and the level of communication quality it can support, to the gNB100.

[0088] The encoding / decoding unit 250 performs data segmentation / linking and channel encoding / decoding, etc., for each predetermined communication destination (gNB100 or other gNB).

[0089] Specifically, the encoding / decoding unit 250 divides the data output from the data transceiver unit 260 into predetermined sizes and performs channel coding on the divided data. Furthermore, the encoding / decoding unit 250 decodes the data output from the modem unit 230 and concatenates the decoded data.

[0090] The data transceiver unit 260 performs the transmission and reception of Protocol Data Units (PDUs) and Service Data Units (SDUs). Specifically, the data transceiver unit 260 performs the assembly / disassembly of PDUs / SDUs in multiple layers (Media Access Control (MAC), Radio Link Control (RLC), and Packet Data Convergence Protocol (PDCP), etc.). In addition, the data transceiver unit 260 performs error correction and retransmission control based on Hybrid Automatic Repeat Request (ARQ).

[0091] The control unit 270 controls the functional blocks constituting the UE200A. In particular, in this embodiment, the control unit 270 is capable of performing controls related to ensuring specific communication quality in a mobile communication network.

[0092] Specifically, the control unit 270 can be conceived as having a guarantee of a specific communication quality based on a specific communication quality received from the gNB100, at least for a specific period.

[0093] As mentioned above, a specific communication quality can be the minimum communication quality guaranteed in a mobile communication network, or it can be a phased communication quality that differs from the level corresponding to the UE's capabilities. The specific period is not particularly limited; typically, it can be a time slot unit, a half-frame unit, or it can be specified by the number of seconds.

[0094] Based on this guarantee, the control unit 270 can set up radio resources secured to ensure a specific communication quality. As described above, radio resources secured to ensure a specific communication quality can be interpreted as radio resources used by high priority UEs, or as radio resources exclusively secured that are different from those used by low priority UEs (or other than high priority UEs).

[0095] Furthermore, based on the guaranteed communication quality information received from gNB100, control unit 270 can envision that the specific communication quality is guaranteed at least for a specific period. Specifically, control unit 270 can refer to the communication quality that can be guaranteed in the mobile communication network as shown by the guaranteed communication quality information, and assume that the UE200A has appropriate capabilities, to envision that the communication quality is guaranteed.

[0096] The control unit 270 can receive guaranteed communication quality information corresponding to the capability of the UE200A, and perform settings corresponding to the capability of the UE200A based on the guaranteed communication quality information. For example, the control unit 270 can secure the required radio resources based on the guaranteed throughput and perform settings that utilize the radio resources.

[0097] Furthermore, as a High priority UE (High-priority UE) whose specific communication quality is guaranteed in a mobile communication network, the control unit 270 can execute settings that use radio resources that are distinct from those used by Low priority UEs (Low-priority UEs) whose specific communication quality is not guaranteed.

[0098] Examples of radio resources used by high-priority UEs, distinct from those used by low-priority UEs, include the following. Specifically, the control unit 270 can execute settings for cells (which may be dedicated cells) used by high-priority UEs. In addition to cells, gNB, CC, RB, and BAND (band) can also be set for high-priority UEs.

[0099] Furthermore, the control unit 270 can also use the random access channel resources (PRACH resources) used by the high priority UE to perform the initial connection (which can also be interpreted as a random access (RA) procedure). That is to say, the PRACH resources used by the high priority UE can be different from the PRACH resources used by other UEs.

[0100] The control unit 270 can also execute settings that utilize radio resources only when the UE200A is in the High priority UE state. As described above, the state of the UE200A (High priority UE or other than High priority UE) can be dynamically changed. When the UE200A is in the High priority UE state, the control unit 270 can execute settings that utilize radio resources used by High priority UEs.

[0101] The control unit 270 can also determine that the UE200A is a high priority UE based on the fact that the setting for using radio resources for a high priority UE has been executed. That is, when the setting for using radio resources for a high priority UE has been executed, the control unit 270 can implicitly determine that the UE is a high priority UE, regardless of permission from the network to be a high priority UE.

[0102] Furthermore, the control unit 270 can establish a connection with the mobile communication network when the mobile communication network accepts a quality assurance communication. Specifically, the control unit 270 can determine whether a quality assurance communication has been accepted based on acceptance information indicating whether the communication has been accepted.

[0103] The control unit 270 can also determine whether to establish a connection with the mobile communication network based on the capabilities of the UE200A, after determining whether to accept a quality assurance communication based on the acceptance information. Specifically, the control unit 270 can determine whether the UE200A is capable of performing a quality assurance communication based on parameters related to the quality assurance communication contained in the acceptance information.

[0104] Furthermore, the control unit 270 can establish a connection with the mobile communication network based on guarantee conditions indicated by condition information received from the network. Specifically, the control unit 270 can determine whether the capabilities of the UE200A meet the guarantee conditions for ensuring specific communication quality in the mobile communication network. If the capabilities of the UE200A meet the guarantee conditions, the control unit 270 can establish a connection with the mobile communication network and perform wireless communication with guaranteed communication quality.

[0105] gNB100 can have the same functions as UE200A mentioned above. Specifically, gNB100 (control signals) The reference signal processing unit 240 may include: a receiving unit that receives from a terminal a guarantee request for guaranteeing a specific communication quality in a mobile communication network; and a sending unit that, based on the received guarantee request, sends a guarantee permission to the terminal indicating that the specific communication quality is guaranteed.

[0106] In addition, gNB100 may include: a receiving unit that receives from a terminal an information request indicating guaranteed communication quality information that can be guaranteed in a mobile communication network; and a sending unit that sends the guaranteed communication quality information to the terminal based on the information request.

[0107] In addition, gNB100 may include: a transmitting unit that transmits to a terminal acceptance information indicating whether a quality assurance communication guaranteeing a specific communication quality has been accepted in the mobile communication network; and a control unit that performs a connection with a terminal requesting to connect to the mobile communication network based on the acceptance information.

[0108] (3) Operation of wireless communication system

[0109] Next, the operation of the wireless communication system 10 will be explained. Specifically, the operation related to ensuring the communication quality in the wireless communication system 10 (mobile communication network) will be explained.

[0110] (3.1) Prerequisites and topics

[0111] As mentioned above, mobile communications using public networks are typically "best-effort" based. Therefore, communication operators (network operators) providing communication services based on mobile networks cannot control sudden spikes in traffic. For example, if traffic surges explosively in crowded environments such as concerts, it is impossible to guarantee even the minimum quality of communication (e.g., making phone calls or browsing websites becomes impossible).

[0112] Mission-critical use cases (e.g., URLLC) have been discussed as 5G use cases. However, when providing mission-critical communication services using public networks, as mentioned above, the expected communication quality (throughput, latency, number of simultaneous connections, etc.) cannot be achieved when there is an increase in surrounding traffic or when there is an increase in traffic within the mission-critical communication service.

[0113] In particular, 6G envisions an increase in use cases requiring certain communication quality guarantees, such as those for specific industries. Given this situation, the importance of communication quality guarantees, both for mission-critical applications and for general users, is further enhanced. Both general user and mission-critical use cases require mechanisms to ensure a "minimum communication quality."

[0114] However, in mobile communication networks to date, there are the following fundamental issues regarding minimum quality assurance.

[0115] • Topic (0): It is difficult to guarantee the minimum quality with limited resources.

[0116] Due to the limited frequency resources and the inability to configure wireless base stations indefinitely, the following question arises: Does a mechanism exist that ensures consistent communication quality for all service users, regardless of time or location?

[0117] • Problem (1): It is difficult to guarantee minimum quality (for all employees).

[0118] If the number of temporary users is unknown, it is difficult to guarantee the minimum quality for all users with limited resources.

[0119] • Topic (2): It is difficult to guarantee the minimum quality for (anyone).

[0120] The minimum quality that can be guaranteed varies depending on the performance / type of the device (UE), making it difficult to guarantee that the minimum quality of the service KPI (Key Performance Indicator) can be met for all users.

[0121] • Topic (3): It is difficult to guarantee minimum quality (at any time).

[0122] Wireless quality varies constantly due to various factors, so it is impossible to guarantee specific KPIs (such as throughput, reliability, etc.).

[0123] • Topic (4): It is difficult to guarantee the minimum quality for (any place).

[0124] Due to limitations in the number of wireless base stations that can be configured, or factors such as the surrounding communication environment, it is difficult to ensure a specific quality in any location.

[0125] (3.2) Action Summary

[0126] The following describes an example of actions related to the minimum quality assurance required to solve the aforementioned problems. A system that achieves minimum quality assurance can be implemented by a network operator conditionally ensuring a predetermined quality for users based on quality statistics. The conditions, predetermined quality, and statistics can be envisioned as follows.

[0127] • (Conditions): Users who can guarantee the minimum quality of service will be determined for each community.

[0128] For example, in cell #1, a minimum quality guarantee can be ensured only for X users (number of UEs). If the number of users who can guarantee the minimum quality exceeds the capacity, the guarantee may not be provided or may not be possible.

[0129] Minimum quality guarantees can be ensured only if specific areas / predetermined electric field strength and other reception quality conditions (RSRP: Reference Signal Received Power, RSRQ: Reference Signal Received Quality, SINR: Signal-to-Interference plus Noise power Ratio, etc.) are met. For example, areas that are difficult to cover, such as the sea or the air, can be designated as "outside the target". Furthermore, conditions such as not being in an environment with significant radio wave attenuation, for example, the UE entering a room surrounded by lead, or the user covering part of the antenna with their hand, can also be used.

[0130] • (Pre-determined quality)

[0131] • (Option 1): The network notifies the UE of the minimum quality that can be guaranteed based on each UE's capability. For example, for UEs with Reduced UE Capability (RedCap), the guaranteed throughput is XXX bps and latency is XXX ms; for enhanced Mobile Broadband (eMBB) UEs (high-end UEs), the guaranteed throughput is YYY bps and latency is YYY ms (YYY≥XXX). This may also include UEs oriented towards URLLC.

[0132] • (Option 2): Only the quality that can be ensured through mandatory capabilities is guaranteed as the minimum quality. For example, it is not necessary to always guarantee 8-layer MIMO x32CC CAx1024 QAM as the minimum quality; for example, the minimum quality achieved through 4-layer x1CC x64QAM can also be guaranteed.

[0133] • (Statistical values): This also ensures that the statistical values ​​of quality achieved within a predetermined period are higher than a threshold. For example, it can ensure an average throughput of XXX bps and a latency of XXX ms per minute.

[0134] Alternatively, an average BLER can be guaranteed instead of an instantaneous BLER (Block Error Rate). The predetermined quality may not be achieved in every single transmission and reception, and the minimum quality throughput and latency values ​​(e.g., round-trip time) can be set to include cases where a block is retransmitted with a certain probability of error.

[0135] Even with the conditions, predetermined quality, and statistical values ​​described above, there are still aspects where it is physically difficult to completely guarantee the minimum quality. Therefore, the system described above can also be used to guarantee the minimum quality and provide commercial support. For example, in cases where the minimum quality cannot be guaranteed, a portion of the service fee can be refunded to the user.

[0136] Furthermore, based on the overall description of the implementation method, the following interpretation can also be applied.

[0137] (i) In at least one action example, the following options or alternatives can be applied.

[0138] • Based on higher layer parameter settings

[0139] • Determined by the higher-order parameters that follow the association.

[0140] • Represented by MAC CE (Control Element) or DCI

[0141] • Determined based on UE capabilities

[0142] As specified by 3GPP standards

[0143] • Alternatively, it can be determined based on the conditions described in the 3GPP specifications, according to the settings of higher-layer parameters / MAC CE / DCI and the reported UE capabilities (a combination of the above determinations).

[0144] Furthermore, by describing the implementation method as a whole, multiple options (action examples) or alternatives can be combined into one option or alternative.

[0145] (ii) The UE is able to receive the following types of information from the network (the network can also be replaced by a gNB).

[0146] • Information via higher-level signaling (e.g., RRC messages)

[0147] ·MAC CE

[0148] It can also be a MAC CE with a new LCID (Logical Channel ID) in the sub-header. To extend an existing MAC CE, for example, a new octet can be imported.

[0149] ·DCI

[0150] The DCI field can be an existing DCI field or a newly introduced DCI field. The RNTI can be a DCI scrambled with CRC (Cyclic Redundancy Checksum) using an existing RNTI or a newly introduced RNTI.

[0151] • UCI (Uplink Control Information) via PUCCH or PUSCH

[0152] • A combination of the above information

[0153] Furthermore, through the overall description of the implementation method, the UE can receive the following periodic information from the network: • (Opt 1): periodically • (Opt 2): Semi-persistent (can be triggered by indication from UE or gNB) • (Opt 3): Aperiodic (can be triggered by indication from UE or gNB) (3.3) (First Embodiment) (3.3.1) Action Example 1 In a minimum quality assurance system, it can be assumed that the frequency and / or demand for minimum quality assurance requests can be controlled on the gNB side.

[0154] The demand and supply of minimum quality assurance (MQA) can vary constantly depending on factors such as region or time. The demand for MQA requests can be envisioned as increasing with the business area. In this environment, only a limited number of users (e.g., mission-critical scenarios) request paid MQA, thus avoiding situations where an unspecified majority of users request MQA.

[0155] However, even with such a mechanism, measures are needed to address situations where minimum quality assurance requests exceed the capacity of network-side devices or frequency resources. For example, the following measures could be considered.

[0156] • Dynamically increase or decrease the capacity of network devices (in the case of using vRAN (virtual RAN), it is conceivable that the processing capacity of network devices can be dynamically increased or decreased).

[0157] • Adjust the price for providing the minimum quality guarantee. By adjusting the price for providing the minimum quality guarantee, demand can be kept below the capacity of network equipment and frequency resources, thereby ensuring the minimum quality of truly essential mission-critical services.

[0158] Figure 4 The following is an example of the communication timing between the UE and gNB in ​​Action Example 1 (one of them). As described above, the users who are guaranteed the minimum communication quality can be limited, and the minimum quality guarantee is applied only to the UEs that require the minimum quality guarantee (e.g., UE#1) (minimum quality guarantee type). The minimum quality guarantee is not applied to other UEs (e.g., UE#2) (best-effort type).

[0159] UE#1, which requires a minimum quality guarantee, can send a "Minimum Quality Guarantee Request" to the gNB. The gNB only applies the minimum quality guarantee to UEs that have set or received notification of "Minimum Quality Guarantee Grant" from other nodes. In this case, the following actions can also be applied.

[0160] • (i) In cases such as increased traffic in the surrounding area where minimum quality assurance is provided, the “minimum quality assurance license” can also be cancelled by the network. It is also conceivable that the gNB periodically or non-periodically notifies the UE of the “minimum quality assurance license”, and the UE performs minimum quality assurance only when such notification is received (on the UE side, the “minimum quality assurance” application can be displayed on the UE’s screen, etc., see Action Example 4).

[0161] (ii) Even in cases of increased peripheral traffic, the "Minimum Quality Assurance Grant" may not be cancelled. Once the UE receives the "Minimum Quality Assurance Grant," it cannot be cancelled unless the UE voluntarily cancels it (a first-mover advantage mechanism). In this case, the minimum quality assurance can be cancelled if the UE sends a "Minimum Quality Assurance Cancellation Request" and receives a response from the gNB. Alternatively, the UE can be configured to send "Minimum Quality Assurance Requests" periodically or non-periodically, with minimum quality assurance only performed during periods when the gNB prompts for permission.

[0162] • (iii) Alternatively, minimum quality assurance may be performed only for a certain period of time, starting from X code points / slots (Xms) after the start of the minimum quality assurance request / license (see reference). Figure 4 The specified period can be defined by 3GPP specifications or set via higher-level signaling. Alternatively, it can be reported through UE Capability Information. After the specified period ends, the UE may be excluded from the minimum quality assurance program. If the UE wishes to maintain minimum quality assurance, it can continuously send minimum quality assurance requests or request minimum quality assurance for an extended period.

[0163] Furthermore, as mentioned above, mechanisms that operate at higher levels are useful when reducing the latency of minimum quality assurance requests and permissions. On the other hand, where greater latency is permissible, request and permission processing can also be performed at even higher levels (including the application layer).

[0164] Figure 5 Example of communication timing between UE and gNB in ​​Action Example 1 (Part 2). Figure 6 Example 3 shows the communication timing between UE and gNB in ​​Action Example 1.

[0165] like Figure 5 As shown, the network can terminate the minimum quality guarantee period even midway through. The minimum quality guarantee can be cancelled after a predetermined time, symbol, or time slot, provided a cancellation notice is sent from the network.

[0166] Alternatively, the UE may choose not to assume that the network will suspend the minimum quality guarantee period midway through the minimum quality guarantee period.

[0167] In this case, no additional charges or changes in unit prices for communication services required for the minimum quality guarantee may occur during the minimum quality guarantee period. Alternatively, the network may change the charges or unit prices for the minimum quality guarantee period even midway through.

[0168] Depending on network congestion, the network may change the cost or unit price midway through the minimum quality guarantee period. If the user (UE) does not take spontaneous action during the change, the minimum quality can continue to be guaranteed.

[0169] Alternatively, users can notify the network whether the minimum quality guarantee continues when the unit price changes. Without such notification, the minimum quality guarantee can be cancelled after a predetermined time, symbol, or time slot from the date of the unit price change instruction.

[0170] Alternatively, users can notify the network of a cancellation request for the minimum quality guarantee when the unit price changes. In the case of cancellation of the minimum quality guarantee, the minimum quality guarantee can be cancelled after a predetermined time, symbol, or time slot from the date of the cancellation request (if no cancellation request is notified, the minimum quality guarantee can continue during the minimum quality guarantee period).

[0171] According to this action example, since a guarantee is granted based on a minimum quality guarantee request from the UE, it is possible to increase the likelihood of maintaining the minimum quality for the requested user while responding to the minimum quality guarantee corresponding to the UE's request.

[0172] (3.3.2) Action Example 2

[0173] The minimum quality assurance request can be sent from the UE to the gNB using the following method. Figure 7 This shows an example of the correspondence between the ID of action example 2 and the minimum quality assurance request.

[0174] For messages sent by a minimum quality assurance request, any of the following methods may also be applied.

[0175] • 1 bit of information (on / off). For example, it can also notify whether a request has been made based on whether a resource has been sent (e.g., send only if a request has been made).

[0176] • Additional information can be notified. For example, it can include the minimum quality assurance period, start time, end time, guarantee priority, and the KPI value to be guaranteed (details will be discussed later). KPI value candidates can also be specified through 3GPP standards or set by higher layers, and the corresponding ID can be notified. Alternatively, the minimum quality assurance period can be notified as an absolute time period.

[0177] In addition, any of the following methods can be applied to the physical channel through which the minimum quality guarantee request is sent.

[0178] • You can set up dedicated UL resources (e.g., dedicated SR (Scheduling Request) resources, dedicated PUCCH resources) to send minimum quality assurance requests through the set resources.

[0179] • Minimum quality assurance requests can be sent via MAC CE (or via PUSCH). SR / PRACH can be sent without a UL grant. Alternatively, a dedicated SR resource with a UL grant can be configured to send minimum quality assurance requests.

[0180] In addition, the minimum quality guarantee license can be sent from the gNB to the UE using the following method.

[0181] Figure 8 This shows an example of the correspondence between the ID of action example 2 and the minimum quality guarantee license. Figure 9 This example illustrates the allocation of resources for the minimum quality guarantee permission notification in Action Example 2.

[0182] For information sent under the minimum quality guarantee license, any of the following methods may also be applied.

[0183] • 1 bit of information (on / off). Predefined DCIs can be used (e.g., DCIs received in a predetermined CORSET / search space, DCIs scrambled by a predetermined RNTI).

[0184] • Notification of additional information. For example, this could include the minimum quality assurance period, start time, end time, and guaranteed KPIs. Alternatively, KPI candidates can be specified through 3GPP standards or set by higher layers, and the corresponding ID can be notified. Alternatively, the minimum quality assurance period can also be notified as an absolute time period.

[0185] In addition, any of the following methods may be applied to physical channels that guarantee minimum quality transmission.

[0186] • Notification via DCI / MAC CE / RRC.

[0187] • Dedicated DL resources can be configured (e.g., dedicated notification via physical channel / RS). The UE can envision being notified of guaranteed clearance and performing measurements in a predetermined resource (specified by 3GPP specifications or set by higher layers) after the request is sent. Furthermore, the UE can also determine whether guaranteed clearance exists based on the reception results.

[0188] The notification of guaranteed permission can also be enabled or disabled. For example, a pre-defined resource (time / frequency / symbol (Cyclic shift / Orthogonal Cover Code (OCC) index)) can be notified. When the UE detects a received signal via the pre-defined resource, it determines that the permission is guaranteed (like the Physical HARQ (hybrid automatic repeat request) Indicator Channel, where each UE only measures the resource corresponding to its own in the information broadcast from the radio base station and receives the signal sent to its own UE).

[0189] • It is also conceivable that UEs that do not receive warranty licenses will not be licensed minimum quality guarantees.

[0190] The KPIs related to minimum quality assurance can be set to at least one of the following. Alternatively, multiple KPIs can be combined.

[0191] UE throughput

[0192] • The lowest / highest value and / or in the UE's communication

[0193] • Statistical values ​​(e.g., CDF (Cumulative Distribution Function) 50%, CDF 5% value, etc.).

[0194] • Latency

[0195] • The lowest / highest value and / or in the UE's communication

[0196] • Statistical values ​​(e.g., CDF 50%, CDF 5% value, etc.)

[0197] • Cell capacity (total throughput of all UEs within a cell)

[0198] • Minimum value / maximum value and / or

[0199] • Statistical values ​​(e.g., CDF 50%, CDF 5% value, etc.)

[0200] • Reliability

[0201] • The lowest / highest value and / or in the UE's communication

[0202] • Statistical values ​​(e.g., CDF 50%, CDF 5% value, etc.)

[0203] • Positioning

[0204] • The minimum / maximum value of the positioning accuracy of the UE, and / or

[0205] • Statistical values ​​(e.g., CDF 50%, CDF 5% value, etc.)

[0206] According to this example, by specifying a minimum communication quality guaranteed based on KPIs, a more granular mechanism for minimum quality assurance can be provided.

[0207] (3.3.3) Action Example 3

[0208] To ensure minimum quality assurance, the following mechanism can be applied. Specifically, a portion of radio resources (frequency, time, communication devices / equipment (antenna, gNB, etc.)) can be preferentially or exclusively allocated to UEs in the minimum quality assurance category.

[0209] Figure 10 This illustrates an example of resource allocation for minimum quality assurance in Action Example 3. For example... Figure 10 As shown, a portion of the resources in the frequency and time directions can be preferentially or exclusively used for minimum quality assurance.

[0210] Other resources can be allocated to UEs that do not meet minimum quality assurance requirements. Alternatively, other resources can be allocated to both UEs that do not meet minimum quality assurance requirements and UEs that meet minimum quality assurance requirements.

[0211] For example, a portion of resources / channels / RS can be allocated to both types of UEs (and can also be measured / received). Broadcast information such as SSB (Synchronization Signal / Physical Broadcast Channel blocks), CSI-RS, TRS, UE common PDCCH, PDSCH (PDCCH received in CSS (Common search space) and PDSCH scheduled by that PDCCH), paging, and MBS (Multicast and Broadcast Services) - PDSCH can also be received by both types of UEs.

[0212] Other UE-specific resources (such as UE-specific PDCCH / PDSCH (PDCCH received in the USS (UE specific search space) and PDSCH scheduled by that PDCCH)) can also be allocated to UEs with the lowest quality assurance.

[0213] In this way, the UE with minimum quality assurance can perform the measurement / reception of the predetermined resources (time / frequency / CDM (Code Division Multiplexing) / BWP / CC / CORESET (control resourcesets)) only during the period of minimum quality assurance.

[0214] Figure 11 The diagram illustrates the structure of cells for minimum quality assurance (MQA) UEs and other types of UEs, including non-MQA UEs and MQA UEs, as shown in Example 3.

[0215] The pre-defined cell / PCI (Physical Cell ID) / CC / BWP / TRP (Transmission Reception Point) can be set so that only users guaranteed with the minimum communication quality (during the period of guaranteed minimum quality) can use it for connection / transmission.

[0216] Regarding measurement reports and beam association reports (Measurementreport / Inter-cell L1 beam report), when a UE requests minimum quality assurance or has configured to perform measurements, it can measure the communication quality of two types of cells: "Cells oriented towards minimum quality assurance" and "Other / Cells oriented towards both." The UE can measure L1-RSRP / SINR / RSRQ and / or L3-RSRP / SINR / RSRQ separately and report the measurement results for each cell to the gNB. Alternatively, the UE can report the measurement results of a cell selected from the measurement results of other cells based on predetermined rules to the gNB. Other UEs can measure the communication quality of "Other / Cells oriented towards both" and report it to the gNB.

[0217] Regarding handover / PCI cell handover, the UE can also permit a connection to a cell oriented towards the minimum quality guarantee only if the minimum communication quality is guaranteed (during the minimum quality guarantee period). After the minimum quality guarantee period has elapsed, the UE can send a handover request to "other / two types of cells" or perform a handover based on an instruction from the gNB.

[0218] According to this example, by setting up dedicated resources for UEs with minimum quality assurance, such as cells with minimum quality assurance, a more reliable minimum quality assurance can be achieved.

[0219] (3.3.4) Action Example 4

[0220] The additional costs (occupancy fees for equipment, radio resources, etc.) required to ensure the minimum quality of communication can be borne by the UE (user) that guarantees the minimum quality.

[0221] As described above, the minimum quality guarantee request can be notified to the gNB from the UE side. It is preferable to provide a function (such as an on-screen button, a slider, etc.) for the user to spontaneously request the minimum quality guarantee from the communication operator. Additionally, it is preferable to provide a display function to allow the user to identify that they are in a minimum quality guarantee period.

[0222] Figure 12 This shows an example of the minimum quality assurance period for action example 4. For example... Figure 12As shown, the minimum quality guarantee period can be specified by the network based on a request from the user (UE), and can be set continuously or intermittently. Furthermore, the minimum quality guarantee can be applied on the premise of a guarantee request from the UE, but such a request is not mandatory. In other words, the minimum quality guarantee can be applied to a specific UE based on its subscription information, regardless of whether the network receives a guarantee request from the UE.

[0223] As a method of charging for the minimum quality guarantee, any of the following can also be applied.

[0224] Additional costs may be incurred during the minimum quality guarantee period (e.g., 0 yen per 30 seconds).

[0225] • Additional charges will be incurred during the minimum quality guarantee period, depending on the actual communication time / data volume (e.g., 0 yen per packet).

[0226] • During the minimum quality guarantee period, a fee discount is applied based on the actual time / amount of communication not being conducted (e.g., negative 0 yen for every 30 seconds).

[0227] Figure 13 Example 4 shows a display example (smartphone) used to identify the user as being in the minimum quality assurance period. Figure 14 Example 4 illustrates a display example (smartwatch) used to allow the user to identify that they are in the minimum quality assurance period.

[0228] like Figure 13 as well as Figure 14 As shown, on-screen displays or light sources such as lamps can be used to notify the user that the terminal (UE) is in the minimum quality assurance period.

[0229] In addition, the minimum quality guarantee price can be displayed through icons / buttons / logos within the screen, or through the screen's borders / lines. Alternatively, the price can be displayed based on the screen's color scheme.

[0230] In addition, Figure 13 as well as Figure 14 The example shown corresponds only to the values ​​"Normal" and "Minimum Quality Assurance Period," but the Minimum Quality Assurance Period can also be displayed in multiple stages (e.g., levels 1-5). In this case, each level can be displayed through color variations, numerical values, markers, etc. Alternatively, the remaining Minimum Quality Assurance Period can be displayed on the screen (e.g., 0 seconds remaining).

[0231] According to this action example, since the minimum quality guarantee period is displayed on the UE in a timely manner, the user can reliably recognize that the minimum quality guarantee has been applied.

[0232] (3.3.5) Action Example 5

[0233] The communication quality of the guaranteed object can be determined by any of the following methods.

[0234] • (Opt 1): The quality that can be ensured (or will be ensured) for each UE notification.

[0235] For example, it can be notified that "quality X can be guaranteed if the parameter set of the capability meets specific condition #1". Or, it can be notified that "quality Y can be guaranteed if condition #2 is met". The communication quality that can be guaranteed (will be guaranteed) can also be changed according to the UE's capabilities. Thus, for UEs with high capabilities, higher communication quality can be guaranteed.

[0236] • (Opt 2): The same quality that can be guaranteed (or will be guaranteed) is notified to all UEs.

[0237] It is also possible to determine the quality that can be guaranteed at the cell level. For example, one can envision the quality that the network can guarantee based on mandatory capabilities and notify the UE of that quality. Alternatively, the UE can be notified of the quality that can be guaranteed in its own cell, neighboring cells, or both its own cell and neighboring cells. Thus, the communication quality that can be guaranteed at the cell level can be determined, thereby simplifying the decision-making process.

[0238] (3.3.6) Action Example 6

[0239] The following actions can be used to inform the UE of the communication quality guaranteed by the network as a minimum. Figure 15 This shows an example (one) of the communication timing between the UE and gNB in ​​Action Example 6. For example... Figure 15 As shown, the UE can request information on the communication quality that the network can guarantee based on an on-demand approach.

[0240] For example, a UE can request information about the quality that can be guaranteed from the network after quality assurance communication has begun. In this case, the UE can be configured to request the quality information that can be guaranteed only after reporting capabilities have been established. Therefore, the quality that the network can guarantee can be determined based on the UE capabilities of each UE.

[0241] The UE may request quality information (below the required capacity) from the network, depending on the situation (e.g., throughput: XXX bps, etc.). Furthermore, in response to this request, the UE may receive at least one of the following pieces of information from the network.

[0242] • Information on the quality that can be guaranteed (if the request is permitted).

[0243] For example, it may include information such as throughput: XXX bps, latency: YYY ms that can be guaranteed, and information related to the validity period of the quality guarantee.

[0244] • Request rejection information (cases where the request was rejected)

[0245] For example, it can also include a reason for rejection (error cause). If there is no response from the network within a certain period of time from the date of the request, the UE can determine that the request has been rejected.

[0246] Figure 16 This shows a second example of the communication timing between the UE and gNB in ​​Action Example 6. Figure 16 As shown, the network can proactively notify the UE of the communication quality that the network can guarantee.

[0247] The UE can receive the guaranteed communication quality when quality-assured communication has commenced through at least any of the following methods.

[0248] • System Information Block (SIB, which can be any SIB)

[0249] • Group common signaling (e.g., multicast / broadcast)

[0250] • Dedicated signaling

[0251] The UE can assume that the guaranteed communication quality is valid for the following period once quality-assured communication has commenced.

[0252] • A certain period of X symbols / slot (X ms) after receiving the information guaranteeing the quality of communication in the event of commencement of quality-assured communication.

[0253] • The period from the moment the information guaranteeing the quality of communication is received again, up to the point after X symbols / slots (Xms) have elapsed.

[0254] • The period from the receipt of information guaranteeing communication quality upon commencement of quality assurance communication until a specific date and time (e.g., xx hour xx minute xx second, 20xx year).

[0255] The UE can also envision different values ​​for X based on the received quality assurance information (communication quality assurance information).

[0256] Furthermore, the UE can also envision a time gap between the notification of quality assurance information and the commencement of quality assurance communication. For example, the value of this gap (G symbol / slot (Gms)) can be notified to the UE from the network, and the value of this gap can also be uniquely specified by the 3GPP specification.

[0257] According to this action example, since the UE is notified of the quality assurance information, the UE can take appropriate measures, including whether the quality assurance communication can be utilized.

[0258] (3.4) (Second Implementation)

[0259] In the wireless communication system 10, there may be UEs that perform normal best-effort communication (also known as existing UEs or low-priority UEs) and UEs that guarantee the lowest quality (high-priority UEs).

[0260] Thus, in an environment where low-priority UEs and high-priority UEs coexist, sufficient resources need to be guaranteed for the low-priority UEs in order to achieve the minimum quality guarantee. On the other hand, it is not easy to satisfy the requests of both parties by accommodating existing UEs with limited resources (only resources not guaranteed for low-priority UEs).

[0261] In this implementation, minimum quality assurance is achieved by supporting only the resources that the minimum quality assurance UE can utilize, thus accommodating existing UEs with limited resources.

[0262] (3.4.0) Action Example 0

[0263] To achieve a minimum quality guarantee, the UE may need to possess a certain level of capability. For example, if quality guarantees are to be provided for low-end UEs such as IoT (Internet of Things) terminals, the minimum quality guarantee may become difficult.

[0264] Therefore, in this action example, the minimum capabilities required for acting as a High priority UE can be specified. Specifically, the mandatory capabilities required for acting as a High priority UE can be specified through 3GPP specifications.

[0265] If a UE lacks this capability, it may not initiate requests, indications, or minimum quality assurance communications to obtain the status of a High priority UE. In this case, the UE may determine this capability based on information received from the network, or as specified by 3GPP specifications.

[0266] According to this example, because a mandatory capability is specified for use with a High priority UE, the minimum quality guarantee for High priority UEs can be implemented more reliably.

[0267] (3.4.1) Action Example 1

[0268] The resources used for minimum quality assurance communication can be ensured as follows.

[0269] • (Example 1): Regarding allocable resources, they are guaranteed for high priority UEs and allocated to the UE through scheduling (which may be dedicated to the UE).

[0270] • (Example 2): Resources for minimum quality assurance communication are secured separately.

[0271] Resources that the network determines between high-priority and low-priority UEs, as well as resources not specifically allocated to a UE, are difficult to secure through scheduling. Specifically, the following requirements need to be met.

[0272] When including the initial connection (which can also be interpreted as a random access procedure) within the scope of quality assurance, the resources used for the initial connection must also be guaranteed for use by high-priority UEs. Therefore, cells used by high-priority UEs or PRACH resources used by high-priority UEs can be supported.

[0273] • Resources for which we need to ensure that quality assurance requests (assurance requests) are sent. We need to avoid situations where we cannot send quality assurance requests and thus fail to guarantee minimum quality.

[0274] Furthermore, when a UE's status dynamically changes to either a High priority UE or a Low priority UE, it's necessary to avoid resetting RRC (Real-Time Control) and other parameters with each change. Therefore, resources can be configured to be used only by High priority UEs. This allows for the pre-configuration of resources for High priority UEs and Low priority UEs, reducing the frequency of RRC resetting.

[0275] (3.4.1.1) Action Example 1-1

[0276] Figure 17 This shows an example of SSB configuration for action example 1-1. Figure 17As shown, it can support SSBs dedicated to High priority UEs (or can be replaced with cell, synchronization signal (SS), etc.).

[0277] A UE can be identified as a cell / SS used by a High priority UE under the following circumstances.

[0278] • Specific Physical Cell ID (PCI)

[0279] For example, suppose PCI 0~X are cells used by low priority UEs (or by both low priority UEs and high priority UEs), and PCI X+1~Y are cells used by high priority UEs.

[0280] The Master Synchronization Signal (PSS) is a specific sequence index.

[0281] • The secondary synchronization signal (SSS) is a specific sequence index.

[0282] • Cells corresponding to a specific global synchronization raster index (e.g., GSCN).

[0283] • Cells corresponding to a specific frequency (band)

[0284] For example, specific frequency bands can be allocated for use by high-priority UEs.

[0285] In addition, it is also possible to broadcast which SSB is for a High priority UE or a Low priority UE through the SSB broadcast message (PBCH). For example, it is possible to broadcast whether the SSB is for a High priority UE or a Low priority UE in a predetermined field of the broadcast message of each SSB.

[0286] High priority UEs can also be configured to perform initial access (RACH transmission) using an SSB without depending on the value of this predetermined field. Low priority UEs can perform initial access (RACH transmission) using an available SSB based on the value of this predetermined field.

[0287] Alternatively, the index corresponding to the cell dedicated to the High priority UE can be determined for each region. Furthermore, Low priority UEs can also be designed to behave as follows within the cell used by High priority UEs.

[0288] • Low priority UEs cannot initiate a random access procedure (initial connection) in this cell.

[0289] • Low priority UEs cannot transmit signals / channels in this cell.

[0290] Figure 18 This shows configuration examples for a normal cell and a high-priority UE-dedicated cell in Action Example 1. For example... Figure 18 As shown, cells #1-1 to #1-3 are normal cells, and cells #2-1 to #2-x are cells dedicated to high priority UEs.

[0291] Because high-priority UEs can connect to more cells, capacity for high-priority UEs can be improved. Additionally, different PCIs can be assigned to each cell.

[0292] Furthermore, to prevent interference between cells, cells #1-x can use PCI = 0 ~ (p-1), and cells #2-x can use PCI = p ~ (p+q-1). Thus, cells #1-x can reuse p PCIs, and cells #2-x can reuse an additional q PCIs, suppressing interference (inter-sequence interference) between regular cells and high-priority UE-dedicated cells.

[0293] (3.4.1.2) Action Examples 1-2

[0294] The UE can receive information from the network about the PRACH resources used by the High priority UE and information about resources other than those PRACH resources.

[0295] Specifically, the UE can receive this information through any of the following methods.

[0296] • Received via system information (e.g., SIB1).

[0297] • Receive PRACH resource information for High priority UEs via dedicated signaling.

[0298] • Receive PRACH resource information for High priority UEs via group common signaling (e.g., multicast / broadcast).

[0299] In addition, the UE can also receive information indicating that it is for a high-priority UE and other PRACH preambles and / or RACH occasions outside of the PRACH resource. For example, as a feature combination, it can be set to be for a high-priority UE, and the PRACH resource associated with the feature combination is determined to be for a high-priority UE.

[0300] Low priority UEs can transmit PRACH without using the PRACH resources available to high priority UEs. In other words, low priority UEs can use PRACH resources designated for low priority UEs to transmit PRACH.

[0301] High priority UEs can also be designed to behave as follows.

[0302] • Use the PRACH resources available to the High priority UE to send PRACH.

[0303] • Use the PRACH resources of the High priority UE or the PRACH resources of the Low priority UE, or resources of both parties to send PRACH.

[0304] High priority UEs can also use the PRACH resources allocated to high priority UEs to send PRACHs when quality assurance is requested, and use the PRACH resources allocated to low priority UEs to send PRACHs when quality assurance is not requested.

[0305] In addition, in the PRACH resources used by High priority UEs, multiple PRACH transmissions (Frequency Division Multiplexing (FDM), Code Division Multiplexing (CDM), or Time Division Multiplexing (TDM)) can be envisioned in a single transmission opportunity.

[0306] (3.4.1.3) Action Examples 1-3

[0307] The UE can configure resources that can only be used when the UE is in the High priority UE state. For example, the following resources may be included.

[0308] • Configured grant of resources for PUSCH

[0309] • PUCCH resources for scheduling requests

[0310] • Monitor PDCCH resources (CORESET, search space)

[0311] Semi-Persistent PDSCH Resources

[0312] • Resources for measurement / reporting

[0313] High priority UEs can be designed to use resources that are only available to high priority UEs, or they can be designed to use resources other than those available to high priority UEs. Therefore, when the UE's state dynamically changes to high priority UE or low priority UE, the number of RRC reconfigurations can be reduced by pre-setting the resources used by high priority UEs and low priority UEs.

[0314] (3.4.1.3') Action Examples 1-3'

[0315] A UE can determine its status as a High priority UE when communicating through a dedicated cell for High priority UEs. Furthermore, a UE can also determine its status as a High priority UE starting from the next timing interval (e.g., symbol, time slot reference).

[0316] • Timing of receiving the Random Access Response (RAR) corresponding to the PRACH resource dedicated to the High priority UE

[0317] • Successful timing of initial connection establishment was achieved by transmitting PRACH using PRACH resources dedicated to the High priority UE.

[0318] • Timing of receiving the signal to start the High priority UE state

[0319] • The timing of the HARQ ACK corresponding to the PDSCH / PDCCH of the signal that initiates the High priority UE state was sent.

[0320] Alternatively, a timeout period (e.g., a pre-defined period or a period set / indicated by the network) from which the High priority UE's state begins can be used as the starting timeout period.

[0321] In addition, the UE can also determine that the state of the High priority UE has ended in the next timing (e.g., symbol, time slot reference).

[0322] • Timing of receiving a signal indicating the end of the High priority UE's state

[0323] • The timing of the HARQ ACK corresponding to the PDSCH / PDCCH corresponding to the signal indicating the end of the High priority UE's state was transmitted.

[0324] • The high priority UE's status begins and a predetermined period (e.g., a pre-defined period or a period set / indicated by the network) has elapsed.

[0325] Alternatively, a timeout period (e.g., a pre-defined period or a period set / indicated by the network) from which the High priority UE's state ends can also be used as the timeout period.

[0326] According to this example, by distinguishing between the resources used by High priority UEs and the resources used by Low priority UEs, the minimum quality guarantee for High priority UEs can be achieved more reliably.

[0327] (3.4.2) Action Example 2

[0328] Due to limited radio resources, the number of UEs eligible for quality assurance is naturally limited. If the number of High priority UEs increases excessively, it becomes difficult to guarantee minimum quality for all High priority UEs. Therefore, in this example, the number of High priority UEs can be controlled.

[0329] To avoid an excessive increase in the number of high priority UEs, the network may decide not to accept new quality assurance communications depending on the situation.

[0330] Specifically, in order to control the number of high priority UEs, information (acceptance information) can be broadcast to the UEs indicating whether the network will accept the high priority UE.

[0331] The UE can receive information indicating whether the network has newly accepted a quality assurance communication (acceptance information). The acceptance information may also include the following information.

[0332] • Indicates whether a new High priority UE has been processed.

[0333] For example, the UE can receive a message indicating whether PRACH transmission can be performed using the PRACH resources of the High priority UE to initiate new quality assurance communication. Additionally, the UE can also receive a message indicating whether communication can be performed via the cell used by the High priority UE to initiate new quality assurance communication.

[0334] The UE may choose not to send a minimum quality guarantee request if it does not receive this information or if the minimum quality guarantee request is not accepted.

[0335] • Information indicating the period of suspension of acceptance when no new High priority UEs are accepted.

[0336] In addition, the UE can receive this information via PBCH or via system information (such as SIB1).

[0337] Alternatively, the network may choose not to specifically broadcast a rejection message for additional (new) High priority UEs. Alternatively, the network may suspend the transmission of SS / instructions for High priority UEs, or switch all SS to SS for Low priority UEs.

[0338] According to this example, the UE can perform connection to the network only when receiving quality assurance communication, thus increasing the likelihood of guaranteeing minimum quality for high priority UEs.

[0339] (3.4.3) Action Example 3

[0340] In the context of mobile communication networks, the availability of guaranteed quality is particularly limited by the communication environment. For example, if a high-priority UE moves outside the area where the minimum quality guarantee is required (which can be interpreted as not meeting the conditions determined by the network), minimum quality guaranteed communication cannot be provided for the high-priority UE. Furthermore, if the high-priority UE does not meet the predetermined radio wave strength (not meeting the conditions determined by the network), minimum quality guaranteed communication cannot be provided for the high-priority UE either.

[0341] Therefore, in this example of operation, the communication quality (radio quality) of the High priority UE can be controlled. Specifically, it is possible to detect situations where the network no longer meets the determined conditions due to factors such as UE movement.

[0342] To detect whether the UE meets the conditions determined by the network, the UE can receive information related to quality assurance conditions (condition information) from the network. The condition information may include the following information.

[0343] • The UE meets the predetermined radio wave strength.

[0344] For example, the UE can receive the radio wave strength required for quality assurance (L1 / L3-RSRP / SINR / RSRQ).

[0345] • Exists within the designated area

[0346] For example, the UE can receive information about the area that can guarantee quality (at least one of Area ID, cell GlobalID, Physical cell ID, ARFCN (Absolute Radio-Frequency Channel Number), and Evolved Cell (for 4G) Global Identifier).

[0347] • A combination of the above information

[0348] For example, the condition that "quality can be guaranteed when the predetermined radio wave strength is met and the area is within a predetermined region" can also be added.

[0349] There are no particular limitations on the method for receiving condition information; the UE can receive condition information using any method described in the action summary (3.2). Furthermore, if the UE does not meet the conditions determined by the network, the UE can send a message to the network indicating that the quality assurance conditions are not met (a non-compliance message). There are no particular limitations on the method for sending the non-compliance message; the UE can send the non-compliance message using any method described in the action summary (3.2).

[0350] According to this example, the communication quality (radio quality) of the High priority UE can be controlled, thus ensuring the minimum quality guarantee for the High priority UE more reliably.

[0351] (4) Other implementation methods

[0352] The above describes the implementation method, but it is not limited to the described implementation method. Various modifications and improvements can be made, which will be obvious to those skilled in the art.

[0353] For example, in the above implementation, 6G utilization is assumed, but in wireless communication methods other than 6G such as 5G / NR, the same minimum quality guarantee mechanism can also be provided.

[0354] In the above implementation, terms such as communication quality, quality, wireless quality, and performance are used, but these terms can also be interpreted as having the same meaning.

[0355] Furthermore, in the above description, the terms configure, activate, update, indicate, enable, specify, and select can be interchanged. Similarly, the terms link, associate, correspond, and map can be interchanged, as can allocate, assign, monitor, and map.

[0356] Furthermore, specific, dedicated, UE specific, and UE dedicated can be used interchangeably. Similarly, common, shared, group-common, UE common, and UE shared can also be used interchangeably.

[0357] The block diagram used in the description of the above embodiments ( Figure 3 The diagram illustrates blocks organized by function. These functional blocks (components) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can be implemented by combining software with one or more of the aforementioned devices.

[0358] 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 enables sending is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0359] Furthermore, the aforementioned gNB100 and UE200A, UE200B (the device) can also function as a computer for processing the wireless communication method disclosed herein. Figure 19 This is a diagram illustrating an example of the hardware structure of the device. (As shown...) Figure 19 As shown, the device can also be configured as a computer device including 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.

[0360] Additionally, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of this device can be configured as either a device comprising one or more of the illustrated components, or a device without any components.

[0361] The functional blocks of the device (refer to) Figure 3 This can be achieved through any hardware element or combination of hardware elements of the computer device.

[0362] Furthermore, the functions of the device are implemented by reading predetermined software (programs) into hardware such as processor 1001 and memory 1002, so that processor 1001 performs calculations and controls communication of communication device 1004 or controls at least one of reading and writing data in memory 1002 and storage device 1003.

[0363] The processor 1001 controls the computer as a whole 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 units, registers, etc.

[0364] 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. Moreover, the various processes described above can be executed by one processor 1001, or by two or more processors 1001 simultaneously or sequentially. The processor 1001 can also be implemented using more than one chip. Additionally, the program can be transmitted from a network via a telecommunications line.

[0365] 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 read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), and 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 may store programs (program code), software modules, etc., capable of executing the methods involved in one embodiment of this disclosure.

[0366] 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 multipurpose 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 recording medium may, for example, be a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0367] 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 called a network device, network controller, network card, communication module, etc.

[0368] The communication device 1004 may also be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc., to realize at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0369] 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).

[0370] Furthermore, devices such as processor 1001 and memory 1002 are connected via bus 1007 for communicating information. Bus 1007 can be a single bus or can be composed of different buses between devices.

[0371] Furthermore, the device 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), and a field-programmable gate array (FPGA), which can be used to implement some or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0372] Furthermore, 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., RRC signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or combinations thereof. In addition, RRC signaling may also be referred to as an RRC message, for example, it may be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0373] The various forms / implementations described in this disclosure can also be applied to systems utilizing Long Term Evolution (LTE), LTE-Advanced (LTE-A), Super 3, 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 being, for example, an integer or decimal), Future Radio Access (FRA), New Radio (NR), 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 these systems. Furthermore, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.).

[0374] The processing steps, timing, and processes described in this disclosure can be rearranged in order 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.

[0375] 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 case where there is only one 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).

[0376] Information and signals (such as data) can be output from a higher (or lower) layer to a lower (or higher) layer. They can also be input or output through multiple network nodes.

[0377] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input and output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0378] 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).

[0379] The various forms / implementations described in this disclosure can be used individually, in combination, or switched between each other during execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not notifying the predetermined information).

[0380] 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.

[0381] In addition, software, commands, and information can also be sent and received via transmission media. For example, when software is sent from a website, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of transmission media.

[0382] 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 can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0383] 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.

[0384] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0385] 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 also be indicated using indexes.

[0386] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters may sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by any appropriate name, and therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0387] 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.

[0388] 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, and each smaller area can also provide communication services through the base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)).

[0389] Terms such as “cell” or “sector” refer to a portion or the entire coverage area of ​​at least one of the base stations and base station subsystems that provide communication services within that coverage area.

[0390] 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.

[0391] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" are used interchangeably.

[0392] 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.

[0393] 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 can be a vehicle (e.g., a car, an airplane, etc.), a mobile body moving in an unmanned manner (e.g., a drone, an autonomous vehicle, etc.), or a robot (humanized or unmanned). Furthermore, at least one of the base station and mobile station also includes devices that do not necessarily move during communication. For example, at least one of the base station and mobile station can be an IoT (Internet of Things) device such as a sensor.

[0394] Furthermore, the base station in this disclosure can also be replaced by a mobile station (user terminal, hereinafter the same). For example, various forms / implementations of this disclosure can also be applied to structures that replace communication between the base station and the mobile station with communication between multiple mobile stations (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the structure can also be configured such that the mobile station has the functions of the base station. In addition, terms such as "uplink" and "downlink" can also be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc. can be replaced with side channel (or side link).

[0395] Similarly, the mobile station in this disclosure can be replaced by a base station. In this case, the base station can also be configured to have the functions of a mobile station.

[0396] 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).

[0397] 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.

[0398] 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.

[0399] 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 a time unit larger than a mini-time slot can also be called PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using mini-time slots can also be called PDSCH (or PUSCH) mapping type B.

[0400] 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.

[0401] 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., 1-13 symbols), or a period longer than 1ms. Furthermore, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe.

[0402] 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 user terminal) in TTI units. However, the definition of TTI is not limited to this.

[0403] 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 that TTI.

[0404] Furthermore, when a time slot or a mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini-time slots) constituting the minimum time unit for scheduling can also be controlled.

[0405] A TTI with a duration of 1ms is also called a normal TTI (TTI in LTE Rel.8-12), a long TTI, a normal subframe, a long subframe, or a time slot. A TTI shorter than a normal TTI can also be called a shortened TTI, a short TTI, a partial or fractional TTI, a shortened subframe, a short subframe, a mini time slot, a sub-time slot, or a time slot.

[0406] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) can be understood as a TTI with a duration of more than 1ms, and a short TTI (e.g., a shortened TTI, etc.) can be understood as a TTI with a duration of less than a long TTI but more than 1ms.

[0407] 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.

[0408] Furthermore, the temporal domain of an RB can include one or more symbols, or it can be the length of a time slot, a mini-time slot, a subframe, or a TTI. A TTI, a subframe, etc., can also be composed of one or more resource blocks.

[0409] 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.

[0410] 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.

[0411] 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 can be determined by indexing RBs based on a common reference point of that carrier. PRBs can be defined and numbered within a BWP.

[0412] 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.

[0413] At least one of the configured BWPs can be active, and it is not necessary to assume that the UE will transmit or receive predetermined signals / channels outside of the active BWP. In addition, the terms "cell" and "carrier" in this disclosure can be replaced by "BWP".

[0414] 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, etc., can be varied in many ways.

[0415] The terms “connected,” “coupled,” or any variations thereof are intended to indicate any direct or indirect connection or combination between two or more elements, including cases where there is one or more intermediate elements between the two elements that are “connected” or “coupled.” The combination or connection between elements can be physical, logical, or a combination of these. For example, “access” can be used instead of “connected.” In the context of this disclosure, it can be understood that two elements are “connected” or “coupled” to each other using at least one of one or more wires, cables, and printed electrical connections, and, as some non-limiting and non-inclusive examples, using electromagnetic energy with wavelengths in the wireless frequency domain, microwave region, and light (including both visible and invisible regions) to “connect” or “couple” to each other.

[0416] The reference signal can be simply called the Reference Signal (RS), or, depending on the standard applied, the pilot.

[0417] 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".

[0418] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0419] 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, reference to the first or second element does not imply that only two elements can be used there, or that the first element must in some form precede the second element.

[0420] 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.

[0421] 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.

[0422] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include situations where actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining are considered as "determining" or "determining." Furthermore, "determining" or "determining" may include situations where actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory) are considered as "determining" or "determining." Additionally, "determining" or "determining" may include situations where actions such as resolving, selecting, choosing, establishing, and comparing are considered as "determining" or "determining." That is, "judgment" and "decision" can include situations where certain actions are regarded as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0423] In this disclosure, the phrase "A and B are different" can mean "A and B are different from each other." 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."

[0424] Figure 20 An example of the structure of vehicle 2001 is shown. For example... Figure 20 As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gear shift lever 2006, 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.

[0425] The drive unit 2002 may consist of, for example, an engine, a motor, or a hybrid powertrain of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a steering wheel), configured to steer at least one of the front and rear wheels based on user-operated steering wheel movements. 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 2021-2027 present in the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 may also be referred to as an ECU (Electronic Control Unit).

[0426] The signals from various sensors 2021 to 2028 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front and rear wheels obtained by speed sensor 2022, air pressure signals of the front and rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal input signals obtained by accelerator pedal sensor 2029, brake pedal input signals obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals for detecting obstacles, vehicles, pedestrians, etc. obtained by object detection sensor 2028.

[0427] 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 vehicle 1.

[0428] The Information Services Department 2012 may include input devices (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from external sources, and may also include output devices (such as monitors, speakers, LEDs, touch panels, etc.) that implement output to external sources.

[0429] The Driver Assistance System 2030 comprises various devices used to prevent accidents or reduce driver workload, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System)), AI (Artificial Intelligence) chips, and AI processors, 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 achieve driver assistance or autonomous driving functions.

[0430] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 1 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 2028 in the vehicle 2001 via the communication port 2033.

[0431] 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.

[0432] 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 2021-2028, 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 2021-2028, 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 may include information based on the aforementioned inputs.

[0433] 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 for outputting information (for example, outputting information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH). In addition, the communication module 2013 stores the various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axles 2009, sensors 2021 to 2028, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0434] 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 in modified and altered ways without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description in this disclosure is for illustrative purposes only and is not intended to be limiting in any way.

[0435] (Postscript)

[0436] The above disclosure can also be expressed as follows. The first feature is a terminal comprising: a receiving unit that receives guaranteed communication quality information from a wireless base station, the guaranteed communication quality information representing the communication quality that can be guaranteed in a mobile communication network; and a control unit that, based on the received guaranteed communication quality information, envisions that the communication quality is guaranteed at least for a specific period.

[0437] The second feature is that, in the first feature, the terminal includes a transmitting unit that sends an information request to the wireless base station requesting the information to ensure communication quality.

[0438] The third feature is that, in the first or second feature, the receiving unit receives the guaranteed communication quality information corresponding to the capabilities of the terminal, and the control unit executes settings corresponding to the capabilities of the terminal based on the guaranteed communication quality information.

[0439] The fourth feature is that, in features 1 to 3, the receiving unit receives the guaranteed communication quality information, which includes at least one of the following: throughput in the terminal, latency, throughput in the cell, reliability, and positioning accuracy of the terminal.

[0440] Label Explanation

[0441] 10 Wireless Communication Systems

[0442] 20 RAN

[0443] 100 gNB

[0444] 200A, 200B UE

[0445] 210 Wireless Signal Transceiver Unit

[0446] 220 Enlarged Section

[0447] 230 Modulation and Demodulation Section

[0448] 240 control signal Reference Signal Processing Unit

[0449] 250 Encoding / Decoding Unit

[0450] 260 Data Transceiver Department

[0451] 270 Control Department

[0452] 1001 processor

[0453] 1002 Memory

[0454] 1003 Storage device

[0455] 1004 Communication device

[0456] 1005 Input Device

[0457] 1006 Output Device

[0458] 1007 bus

[0459] Vehicle 2001

[0460] 2002 Drive Unit

[0461] 2003 Steering Unit

[0462] 2004 Accelerator Pedal

[0463] 2005 Brake Pedal

[0464] 2006 gearshift lever

[0465] Front wheels around 2007

[0466] 2008 rear wheels (left and right)

[0467] 2009 axle

[0468] 2010 Electronic Control Department

[0469] 2012 Information Service Department

[0470] 2013 Communication Module

[0471] 2021 Current Sensor

[0472] 2022 Speed ​​Sensor

[0473] 2023 Barometric Pressure Sensor

[0474] 2024 vehicle speed sensor

[0475] 2025 Accelerometer

[0476] 2026 Brake Pedal Sensor

[0477] 2027 Gearshift sensor

[0478] 2028 Object Detection Sensor

[0479] 2029 Accelerator Pedal Sensor

[0480] 2030 Driver Assistance Systems Department

[0481] 2031 microprocessor

[0482] 2032 Memory (ROM, RAM)

[0483] 2033 Communication Port

Claims

1. A terminal, comprising: A receiving unit receives guaranteed communication quality information from a wireless base station, the guaranteed communication quality information representing the guaranteed communication quality in a mobile communication network; and The control unit, based on the received guaranteed communication quality information, envisions that the communication quality is guaranteed at least for a specific period.

2. The terminal according to claim 1, wherein, The terminal includes a transmitting unit, which sends an information request to the wireless base station requesting the information to ensure communication quality.

3. The terminal according to claim 2, wherein, The receiving unit receives the guaranteed communication quality information corresponding to the capabilities of the terminal. Based on the guaranteed communication quality information, the control unit executes settings corresponding to the capabilities of the terminal.

4. The terminal according to claim 1, wherein, The receiving unit receives the guaranteed communication quality information, which includes at least one of the following: throughput in the terminal, latency, throughput in the cell, reliability, and positioning accuracy of the terminal.

5. A wireless base station, comprising: A receiving unit receives from a terminal an information request for guaranteed communication quality information, wherein the guaranteed communication quality information represents the communication quality that can be guaranteed in a mobile communication network; and The sending unit sends the communication quality assurance information to the terminal based on the information request.

6. A wireless communication method, which is a wireless communication method in a terminal, comprising the following steps: Receive guaranteed communication quality information from a wireless base station, wherein the guaranteed communication quality information represents the communication quality that can be guaranteed in a mobile communication network; and Based on the received guaranteed communication quality information, it is envisioned that the communication quality is guaranteed at least for a specific period.

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