terminal

Abstract

The terminal includes a transmission unit that repeatedly transmits a message related to random access using a first resource of application time division duplex or a second resource capable of utilizing a sub-band different from a frequency band of the time division duplex in a direction of transmission and reception in the frequency band, and a control unit that determines the second resource as a resource for the repeated transmission.

Description

Technical Field

[0001] This disclosure relates to terminals that support subband non-overlapping full duplex (SBFD). 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 mobile communication system known as Beyond 5G, 5G Evolution, or 6G.

[0003] Version 18 discusses a duplexing method that enables simultaneous use of downlink (DL) and uplink (UL) by utilizing multiple subbands that constitute the frequency band of Time Division Duplex (TDD). This duplexing method is called subband non-overlapping full duplex (SBFD). Furthermore, symbols applying SBFD can be called SBFD symbols. Additionally, within SBFD symbols, the subband used for DL ​​can also be called a DL subband, and the subband used for UL can also be called a UL subband.

[0004] Furthermore, for version 19, support for random access (RA) in SBFD was investigated (Non-Patent Document 1). Specifically, the extension of message transmission and reception in the random access channel (RACH) to SBFD symbols is being investigated.

[0005] In the RA (Automatic Access Request) phase, the terminal (hereinafter also referred to as the User Equipment (UE)) and the base station (hereinafter also referred to as the gNodeB (gNB)) exchange messages as shown below. First, the UE sends a preamble during a valid random access opportunity. Next, it receives a Random Access Response (RAR). Third, the UE sends Msg3 as an RRC (Redirect Access Control) connection request message. Fourth, the UE receives Msg4 as a contention resolution message. Finally, the UE sends a Hybrid Automatic Repeat Request (HARQ) ACK for Msg4.

[0006] Existing technical documents

[0007] Non-patent literature

[0008] Non-patent literature 1: "New WID: Evolution of NR duplex operation: Sub-band fullduplex (SBFD)", RP-234035, 3GPP TSG RAN Meeting #102, 3GPP, December 11-15, 2023 Summary of the Invention

[0009] However, in the aforementioned RA, various messages are expected to be repetitively transmitted to ensure rapid and reliable communication. On the other hand, SBFD symbols are transmitted within UL symbols, for example, within DL symbols; therefore, DL reception within the same symbol may interfere with UL transmission. Thus, from the perspective of interference, SBFD symbols have a different property from non-SBFD symbols.

[0010] Therefore, in scheduling where SBFD and non-SBFD symbols coexist, there is a concern about the impact of repeated transmissions due to differences in interference, leading to a desire to avoid repeated transmissions of messages related to random access. On the other hand, from the perspective of flexible resource allocation, there is also a desire to repeatedly transmit messages related to random access in scheduling where SBFD and non-SBFD symbols coexist.

[0011] Therefore, the purpose of this disclosure is to provide a terminal that can repeatedly transmit messages related to random access while taking into account the interference problem in scheduling where SBFD symbols and non-SBFD symbols coexist.

[0012] One disclosed embodiment is a terminal comprising: a transmitting unit (wireless transceiver unit 210) that repeatedly transmits messages related to random access using a first resource for applying time division duplex, or a second resource that can utilize a subband within the time division duplex frequency band with a transmission / reception direction different from the frequency band; and a control unit (control unit 270) that determines the second resource as the resource for repeated transmission.

[0013] One disclosed embodiment is a terminal comprising: a transmitting unit (wireless transceiver unit 210) that uses a first resource for applying time division duplex and a second resource that can utilize a subband within the frequency band of the time division duplex to repeatedly transmit messages related to random access; and a control unit (control unit 270) that determines the first resource and the second resource, which are consecutive in the time direction, as the resources for the repeated transmission. Attached Figure Description

[0014] Figure 1 This is a general structural diagram of a wireless communication system.

[0015] Figure 2 This is a diagram showing the frequency ranges used in wireless communication systems.

[0016] Figure 3 This is a diagram illustrating an example of the structure of wireless frames, subframes, time slots, and symbols used in a wireless communication system.

[0017] Figure 4 This is a functional block diagram of the terminal.

[0018] Figure 5 This is a functional block diagram of a base station.

[0019] Figure 6 This is a diagram showing an example of SBFD slots / symbols.

[0020] Figure 7 This is a diagram illustrating whether Msg3 PUSCH repetitions are allowed in SBFD symbols.

[0021] Figure 8 This is a diagram illustrating an example of whether Msg3 PUSCH can be repeated in SBFD symbols.

[0022] Figure 9 This is a diagram illustrating an example of whether Msg3 PUSCH can be repeated in SBFD symbols.

[0023] Figure 10 This is a diagram illustrating an example of the hardware structure of a base station and a terminal.

[0024] Figure 11 This is a diagram showing an example of the structure of a vehicle. Detailed Implementation

[0025] The embodiments are described below based on the accompanying drawings. Furthermore, the same or similar reference numerals are used to denote the same function or structure, and their descriptions are omitted where appropriate.

[0026] (1) Structure of wireless communication system

[0027] Figure 1 The wireless communication system 10 shown is a wireless communication system that follows a method known as 5G. On the other hand, the wireless communication system 10 can also be a wireless communication system that follows a method known as Beyond 5G, 5G Evolution, or 6G.

[0028] The wireless communication system 10 can support massive multiple-input multiple-output (Massive MIMO) that generates more directional beams by controlling wireless signals transmitted from multiple antenna elements, carrier aggregation (CA) that uses multiple component carriers (CC), and dual connectivity (DC) that communicates with two base stations simultaneously.

[0029] like Figure 1 As shown, the wireless communication system 10 includes a base station 100 (hereinafter also referred to as gNodeB (gNB) 100) constituting a Next Generation-Radio Access Network (NG-RAN) 20, and a terminal 200 (hereinafter also referred to as User Equipment (UE) 200) that communicates wirelessly with the gNB 100. The NG-RAN 20 is connected to a core network (CN) not shown. The CN consists of multiple network functions (NFs). NFs include, for example, the Access and Mobility Management Function (AMF) and the Network Data Analytics Function (NWDAF). The AMF, for example, performs registration for the UE 200. The NWDAF, for example, performs optimization for the CN. Furthermore, the specific structure of the wireless communication system 10, such as the number of gNB 100 and UE 200, is not limited to... Figure 1 The example shown. Furthermore, NG-RAN20 and CN can also be simply referred to as "network".

[0030] The gNB100 can also be a base station with a centralized-radio access network (C-RAN) structure, consisting of a distributed unit (DU) for connecting to the UE200 and a central unit (CU) for connecting to the network. In this case, the gNB100 can be replaced by a DU, a CU, or both. When the gNB100 is replaced by a DU, it can also be called gNB-DU. When the gNB100 is replaced by a CU, it can also be called gNB-CU. When the gNB100 is replaced by both a DU and a CU, the DU portion can be called gNB-DU, and the CU portion can be called gNB-CU.

[0031] In addition, the wireless communication system 10 can support multiple frequency ranges (FRs). That is, such as Figure 2As shown, the following FRs are also supported.

[0032] FR1: 410MHz~7.125GHz

[0033] FR2-1: 24.25GHz~52.6GHz

[0034] FR2-2: Over 52.6GHz to 71GHz

[0035] In FR1, a subcarrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5–100 MHz can be used. In FR2-1, an SCS of 60 or 120 kHz (which can be 240 kHz) and a BW of 50–400 MHz can be used.

[0036] In FR2-2, to avoid increasing phase noise, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a larger SCS can be applied.

[0037] In addition, such as Figure 3 As shown, one time slot in the wireless communication system 10 consists of 14 symbols. While maintaining this structure, a larger (wider) SCS results in a shorter symbol period (and time slot period). Furthermore, the SCS is not limited to... Figure 3 The frequency shown can be, for example, 480kHz, 960kHz, etc.

[0038] Furthermore, the number of symbols constituting one time slot does not necessarily have to be 14 symbols; for example, it could be 28 or 56 symbols. Also, the number of time slots in each subframe can vary depending on the SCS.

[0039] (2) Functional block structure of wireless communication system

[0040] (2.1) Functional block structure of the terminal

[0041] like Figure 4 As shown, the UE200 includes a wireless signal transceiver unit 210, an amplifier unit 220, a modem unit 230, and a control signal transceiver unit 20. Reference signal processing unit 240, encoding / decoding unit 250, data transceiver unit 260, and control unit 270.

[0042] The wireless transceiver unit 210 transmits and receives wireless signals with the gNB 100. The wireless transceiver unit 210 can also be configured as a transmitter sending wireless signals to the gNB 100 and a receiver receiving wireless signals from the gNB 100. The wireless signals can contain data or can be replaced by data. Transmission can also be replaced by reports, notifications, etc. Reception can also be replaced by setting, instructing, or notifying. Furthermore, setting can be achieved through setting information (information element (IE)) at the Radio Resource Control (RRC) layer, and instructing can be achieved through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0043] The wireless transceiver unit 210 of the embodiment is capable of performing random access (RA) to the gNB 100. Specifically, the wireless transceiver unit 210 is capable of sending and receiving various messages related to random access to the gNB 100. Hereinafter, the sending and receiving of various messages in RA will be briefly described.

[0044] First, the wireless transceiver unit 210 transmits a preamble (Msg1) during a valid random access opportunity determined based on a pre-defined RACH setting. Second, the wireless transceiver unit 210 receives Msg2 as a random access response (RAR).

[0045] Third, the wireless transceiver unit 210 sends Msg3 as an RRC connection request message. Furthermore, Msg3 is transmitted via the Physical Uplink Shared Channel (PUSCH), and therefore can also be referred to as Msg3 PUSCH. Fourth, the wireless transceiver unit 210 receives Msg4 as a contention resolution message.

[0046] Finally, the radio transceiver unit 210 sends a Hybrid Automatic Repeat Request (HARQ) ACK to Msg4. The HARQ ACK for Msg4 is sent via the Physical Uplink Control Channel (PUCCH), and therefore can also be called Msg4 HARQ-ACK PUCCH or Msg4 PUCCH. Random access is completed through the transmission of the Msg4 PUCCH.

[0047] The wireless transceiver unit 210 of the embodiment is capable of repeatedly transmitting the above-described random access related messages. That is, as random access related messages, the wireless transceiver unit 210 can repeatedly transmit the preamble, Msg3 PUSCH, and Msg4 HARQ-ACK PUCCH (Msg4 PUCCH). In addition, Msg3 PUSCH can be replaced with the physical uplink shared channel related to random access. Furthermore, Msg4 HARQ-ACK PUCCH (Msg4 PUCCH) can also be replaced with the physical uplink control channel related to random access.

[0048] The wireless transceiver unit 210 of the embodiment can repeatedly transmit messages related to random access using time-division duplex (TDD) resources (non-SBFD time slots / symbols). Furthermore, the wireless transceiver unit 210 can repeatedly transmit messages related to random access using resources (SBFD time slots / symbols) in subbands within the TDD frequency band that have a different transmission / reception direction than the frequency band. In this case, the wireless transceiver unit 210 can repeatedly transmit messages related to random access in the UL subband within the SBFD time slots / symbols. Additionally, in this specification, non-SBFD time slots / symbols are sometimes referred to as first resources, and SBFD time slots / symbols as second resources.

[0049] In the implementation of the wireless signal transceiver unit 210, when repeatedly transmitting messages related to random access, it can use only one of the first resource or the second resource, or it can use both. Furthermore, in the case of using only one of the first resource or the second resource, such as... Figure 7 as well as Figure 8 As shown, the wireless transceiver unit 210 can repeatedly transmit using either a second resource that spans the first resource in the time direction or a first resource that spans the second resource in the time direction. Furthermore, the control unit 270, described later, determines which resource to actually use when repeatedly transmitting messages related to random access.

[0050] The wireless transceiver unit 210 in the embodiment can also transmit the permission for repeated transmission in the second resource using a preamble transmitted in random access. The permission for repeated transmission can be transmitted as a UE capability or as a request for repeated transmission to gNB100.

[0051] The amplification unit 220 includes a power amplifier (PA) and a low-noise amplifier (LNA). The amplification unit 220 amplifies the wireless signal output from the wireless signal transceiver unit 210. Additionally, the amplification unit 220 amplifies the wireless signal output from the modem 230.

[0052] The modem 230 performs data modulation / demodulation, transmit power setting, and resource block allocation for each predetermined communication target (gNB100 or other gNB100). CP-OFDM / DFT-S-OFDM can also be applied in the modem 230. Furthermore, DFT-S-OFDM can be used not only for the uplink (UL) but also for the downlink (DL).

[0053] control signals The reference signal processing unit 240 performs processing of control signals, such as Radio Resource Control (RRC) signaling, that are transmitted and received with the gNB100.

[0054] control signals The reference signal processing unit 240 performs processing on reference signals transmitted and received with gNB100, such as demodulation reference signal (DMRS), phase tracking reference signal (PTRS), channel state information-reference signal (CSI-RS), sounding reference signal (SRS), and positioning reference signal (PRS).

[0055] In addition, the channels include control channels and data channels. Control channels include the Physical Uplink Control Channel (PUCCH), Physical Downlink Control Channel (PDCCH), Physical Random Access Channel (PRACH), and Physical Broadcast Channel (PBCH). Data channels include the Physical Uplink Shared Channel (PUSCH) and Physical Downlink Shared Channel (PDSCH).

[0056] The encoding / decoding unit 250 performs segmentation / linking and encoding / decoding of the data contained in the wireless signal for each predetermined communication target (gNB100 or other gNB100).

[0057] Specifically, the encoder / decoder 250 decodes the data output from the modem 230 and concatenates the decoded data. Additionally, the encoder / decoder 250 divides the data output from the data transceiver 260 into predetermined sizes and encodes the divided data.

[0058] The data transceiver unit 260 performs tasks such as assembling and decomposing Protocol Data Units (PDUs) and Service Data Units (SDUs) that constitute data between layers. These layers include the Media Access Control (MAC) layer, the Radio Link Control (RLC) layer, and the Packet Data Convergence Protocol (PDCP) layer. Furthermore, the data transceiver unit 260 performs error correction and retransmission control based on Hybrid Automatic Repeat Request (HARQ).

[0059] The control unit 270 controls the UE 200. For example, the control unit 270 controls the transmission and reception of wireless signals based on the wireless signal transceiver unit 210, amplification based on the amplification unit 220, data modulation / demodulation based on the modulation / demodulation unit 230, and control signals. The signal processing of the reference signal processing unit 240, the encoding / decoding based on the encoding / decoding unit 250, and the assembly / decomposition of data units based on the data transceiver unit 260.

[0060] The control unit 270 in this embodiment can determine the resources for repeated transmission. For example, the control unit 270 can determine the aforementioned second resource as a resource for repeated transmission. Furthermore, as... Figure 8 As shown, even when the second resource spans the first resource in the time direction, the control unit 270 can still determine such a second resource as a resource for repeated transmission. Furthermore, as... Figure 9 As shown, the control unit 270 can determine the first resource and the second resource that are consecutive in the time direction as resources for repeated transmission.

[0061] (2.2) Functional block structure of base station

[0062] like Figure 5 As shown, the gNB100 includes a wireless signal transceiver unit 110 and a control unit 120.

[0063] The wireless transceiver unit 110 transmits and receives wireless signals with the UE 200. The wireless transceiver unit 110 can also be configured as a transmitter sending wireless signals to the UE 200 and a receiver receiving wireless signals from the UE 200. The wireless signals can contain data or can be replaced by data. Transmission can also be replaced by settings, indications, notifications, etc. Reception can also be replaced by reports (performed), notifications (performed), etc. Furthermore, settings can be implemented through setting information (information elements (IE)) at the Radio Resource Control (RRC) layer, and indications can be implemented through control elements (CE) and downlink control information (DCI) at the Media Access Control (MAC) layer.

[0064] The wireless transceiver unit 110 in the embodiment can transmit (set) RACH settings to the UE200.

[0065] The control unit 120 controls the gNB 100. For example, the control unit 120 controls the transmission and reception of wireless signals performed by the wireless signal transceiver unit 110. In addition, the control unit 120 performs scheduling for the UE 200.

[0066] The control unit 120 can control the handover (HO) of UE 200. HO can also be understood as, for example, migrating from gNB 100 to which UE 200 is connected to another gNB 100. In addition, the gNB 100 to which UE 200 is connected in the HO can be replaced with the cell or beam formed by the gNB 100. Furthermore, HO can also be replaced with terms such as cell migration, cell change, beam change, etc.

[0067] (3) SBFD

[0068] like Figure 6 As shown, SBFD can be applied to each time slot / symbol. In addition, for each time slot / symbol, besides DL and UL, SBFD can also be applied after being set to Flexible (FL) for use as DL or UL.

[0069] SBFD is a type of full-duplex duplex based on Time Division Duplex (TDD), which can simultaneously utilize multiple sub-bands that constitute the TDD frequency band. In addition, SBFD can also be described as a duplex method that defines multiple sub-bands within the TDD frequency band, or as a duplex method that allocates UL and DL non-overlapping in the frequency direction within the TDD time unit, or as full-duplex sub-bands.

[0070] The time slots / symbols for which SBFD is applied are referred to as SBFD time slots / symbols. "Applying SBFD" can also be understood as applying SBFD in at least a portion of the scheduling. That is, "time slots / symbols for which SBFD is applied" can be understood as time slots / symbols for which SBFD is applied within a scheduling that applies SBFD (SBFD time slots / symbols). Furthermore, "time units for which non-SBFD is applied" can be understood as time slots / symbols for which SBFD is not applied within a scheduling that applies SBFD (non-SBFD time slots / symbols).

[0071] like Figure 6 As shown, each sub-band (SBFD sub-band) constituting the SBFD time slot / symbol is assigned either DL or UL. Hereinafter, sub-bands assigned DL will be referred to as DL sub-bands, and sub-bands assigned UL will be referred to as UL sub-bands. Figure 6 In the diagram, time slots / symbols or subbands marked with "D" are DL time slots / symbols or DL ​​subbands, and those marked with "U" are UL time slots / symbols or UL subbands. Additionally, time slots / symbols marked with "F" in other diagrams are FL time slots / symbols.

[0072] The following is a brief explanation of the terminology related to SBFD.

[0073] • SBFD DL symbol: A symbol that is indicated as DL by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, and is a symbol with SBFD subband configured.

[0074] • SBFD FL symbol: A symbol indicated as FL by tdd-UL-DL-ConfigurationCommon or tdd-UL-DL-ConfigurationDedicated, and a symbol with SBFD subband configured.

[0075] • SBFD SSB symbols: These are symbols configured for SSB reception and are symbols configured with SBFD subbands.

[0076] • non-SBFD symbols: Symbols for which SBFD subbands are not configured.

[0077] Non-SBFD time slots / symbols and SBFD time slots / symbols can also be understood as time units. For example, a non-SBFD time slot / symbol can be interpreted as a time unit for applying TDD, and an SBFD time slot / symbol can be interpreted as a time unit that can utilize multiple sub-bands that constitute the frequency band of TDD (or sub-bands within the frequency band of TDD with different transmission and reception directions than the frequency band of TDD).

[0078] Non-SBFD time slots / symbols and SBFD time slots / symbols can be understood as resources observed from the time direction. For example, non-SBFD time slots / symbols can be interpreted as resources for applying TDD, while SBFD time slots / symbols can be interpreted as resources that can utilize multiple subbands constituting the TDD frequency band (or subbands within the TDD frequency band with different transmission and reception directions than the TDD frequency band).

[0079] (4) Operation of wireless communication system

[0080] (4.1) Problem

[0081] In scheduling where SBFD and non-SBFD symbols coexist, there is a concern about the impact of repeated transmissions due to differences in interference, leading to a desire to avoid repeated transmissions of messages related to random access. On the other hand, from the perspective of flexible resource allocation, there is also a desire to repeatedly transmit messages related to random access in scheduling where SBFD and non-SBFD symbols coexist.

[0082] (4.2) Action Examples

[0083] (4.2.1) Action Example 1

[0084] Reference Figures 7 to 9 Let's explain Action Example 1. In Action Example 1, UE200 determines whether to support repeated transmission of Msg3 PUSCH in the SBFD symbol set. Additionally, in... Figures 7 to 9 In this context, it is assumed that the boundary between UL symbols and DL symbols is the boundary of the time slot.

[0085] As a premise, it is assumed that UE200 supports Msg3 PUSCH without repeated transmissions in SBFD symbols (overlapping with SBFD symbols). In addition, the SBFD symbols in Action Example 1 are, for example, SBFD DL symbols and / or SBFD FL symbols and / or SBFDSSB symbols.

[0086] The following explanation uses option A to illustrate the case where repeated transmission of Msg3 PUSCH in SBFD symbols is not supported, and option B to illustrate the case where repeated transmission of Msg3 PUSCH is supported. However, the choice between option A and option B can be predefined by the standard or set or indicated by gNB100.

[0087] (4.2.1.1) Option A

[0088] In option A, the UE200 does not support repeated transmission of Msg3 PUSCH within SBFD symbols (overlapping with SBFD symbols). When option A is used, as... Figure 7The Msg3 PUSCH is repeatedly sent as shown.

[0089] First, as in case 1, if the SBFD symbol in option A does not contain the SBFD FL symbol, the traditional rule can be reused. That is, repeated transmissions of Msg3 PUSCH can be performed in both UL and FL symbols.

[0090] Next, as in scenario 2, if the SBFD symbol in option A includes the SBFD FL symbol, the decision on the repetitive time slot used for Msg3 PUSCH needs to be changed. This is because repetitive transmission of Msg3 PUSCH is permitted in both UL and FL symbols, but not in the SBFD FL symbol in this case.

[0091] In scenario 2, for Msg3 PUSCH with a repetition factor greater than 1, if the repeated transmission of PUSCH does not overlap with any DL / SSB symbol or SBFD symbol, UE200 determines the repetition time slot (N time slot) used for Msg3 PUSCH as the original repetition time slot (N time slot) used for Msg3 PUSCH.

[0092] (4.2.1.2) Option B

[0093] In option B, the UE200 supports repeated transmission of Msg3 PUSCH within SBFD symbols (overlapping with SBFD symbols). Additionally, the following description applies to Msg3 PUSCH with a repetition factor greater than 1.

[0094] (4.2.1.2.1) Option B-1

[0095] In option B-1, repeated transmissions of Msg3 PUSCH can be performed in SBFD symbols and non-SBFD symbols within one time slot / multiple different time slots. When using option B-1, such as... Figure 9 The Msg3 PUSCH is repeatedly transmitted as shown. Additionally, as a variation, the Msg3 PUSCH within a time slot can be limited to either SBFD or non-SBFD symbols. In other words, repeated transmission of the Msg3 PUSCH within a time slot is not expected / not permitted to overlap between SBFD and non-SBFD symbols.

[0096] In option B-1, if the repeated transmission of Msg3 PUSCH does not overlap with any non-SBFD DL symbol or (non-SBFD) SSB symbol (and does not overlap with both SBFD symbol and non-SBFD symbol simultaneously (and if Msg3 PUSCH overlaps with SBFD symbol in this time slot but does not overlap with the RB outside the UL subband of SBFD symbol)), UE200 determines the repeated time slot (N time slot) for Msg3 PUSCH as the initial repeated time slot (N time slot) for Msg3 PUSCH starting from time slot n+k2+Δ.

[0097] (4.2.1.2.2) Option B-2

[0098] In option B-2, repeated transmissions of multiple Msg3 PUSCHs across multiple time slots can be limited to SBFD symbols or to non-SBFD symbols. When using option B-2, such as... Figure 7 or Figure 8 The Msg3 PUSCH is repeatedly sent as shown.

[0099] Example 1: UE200 determines the symbol type (e.g., SBFD symbol type, non-SBFD symbol type) based on the initial time slot used for repeated transmission of Msg3 PUSCH.

[0100] • Initial time slot determination: In the case that the repeated transmission of Msg3 PUSCH does not overlap with any non-SBFD DL symbol or (non-SBFD) SSB symbol (and does not overlap with both SBFD symbol and non-SBFD symbol simultaneously (and when Msg3 PUSCH overlaps with SBFD symbol in this time slot, it does not overlap with the RB outside the UL subband of SBFD symbol)), the initial time slot for repeated transmission of Msg3 PUSCH is the repeated time slot (N time slot) used for the initial Msg3PUSCH starting from time slot n+k2+Δ.

[0101] • When the Msg3 PUSCH symbol in the initial time slot is an SBFD symbol, the UE200 determines the repeated time slot (N time slot) used for Msg3 PUSCH as the repeated time slot (N time slot) used for the initial Msg3 PUSCH within the SBFD symbol for repeated PUSCH transmission.

[0102] • When the Msg3 PUSCH symbol in the initial time slot is a non-SBFD symbol, the UE200 determines the repeated time slot (N time slot) used for Msg3 PUSCH as the repeated time slot (N time slot) used for the initial Msg3 PUSCH that does not overlap with any DL / SSB symbol or SBFD symbol during the repeated transmission of PUSCH.

[0103] Example 2: UE200 determines the symbol type (e.g., SBFD symbol type, non-SBFD symbol type) based on RAR indication or gNB setting / indication.

[0104] • When the indicated or set symbol type is SBFD symbol type, UE200 determines the repetitive time slot (N time slot) used for Msg3 PUSCH as the initial repetitive time slot (N time slot) used for Msg3 PUSCH within the SBFD symbol for repeated transmission of PUSCH.

[0105] • When the indicated or set symbol type is non-SBFD symbol type, UE200 determines the repetitive time slot (N time slot) used for Msg3PUSCH as the initial repetitive time slot (N time slot) used for Msg3 PUSCH that does not overlap with any DL / SSB symbol or SBFD symbol during the repeated transmission of PUSCH.

[0106] Example 3: UE200 determines the repeated time slot (N time slot) used for Msg3 PUSCH, and expects that all PUSCH symbols in each time slot are either SBFD symbols or all non-SBFD symbols.

[0107] • In the case that repeated transmissions of Msg3 PUSCH do not overlap with any non-SBFD DL symbol or (non-SBFD) SSB symbol (and do not overlap with both SBFD symbol and non-SBFD symbol simultaneously (and when Msg3 PUSCH overlaps with SBFD symbol in this time slot, it does not overlap with the RB outside the UL subband of SBFD symbol)), UE200 determines the time slot for repeated transmissions of Msg3 PUSCH as the repeated time slot (N time slot) for the initial Msg3 PUSCH starting from time slot n+k2+Δ.

[0108] (4.2.2) Action Example 2

[0109] Action Example 2 is an example of power control related to the transmission of Msg3 PUSCH performed separately in SBFD symbols and non-SBFD symbols, as in Action Example 1.

[0110] • Alt-1: Sets the delta preamble power parameter used for Msg3 PUSCH in SBFD symbols and the delta preamble power parameter used for Msg3 PUSCH in non-SBFD symbols as separate parameters. For example, to calculate PREAMBLE_RECEIVED_TARGET_POWER, set separate delta preamble power parameters.

[0111] Example: In PUSCH-configCommon, set a new parameter msg3-DeltaPreamble-sbfd-r19. In this case, msg3-DeltaPreamble is used for Msg3 PUSCH transmission within non-SBFD symbols, and the new parameter msg3-DeltaPreamble-sbfd-r19 is used for Msg3 PUSCH transmission within SBFD symbols.

[0112] • Example: Configure common PUSCH settings separately in SBFD and non-SBFD. For example, set a new parameter PUSCH-configCommon-sbfd-r19 for SBFD. In this case, msg3-DeltaPreamble in PUSCH-configCommon for non-SBFD is used for Msg3 PUSCH transmission within non-SBFD symbols, and msg3-DeltaPreamble (or msg3-DeltaPreamble-sbfd-r19) in PUSCH-configCommon-sbfd-r19 for SBFD is used for Msg3 PUSCH transmission within SBFD symbols.

[0113] • Alt-2: Can set or indicate (target) power offset for Msg3 PUSCH transmission in SBFD symbols.

[0114] Example: Regarding the transmission of Msg3 PUSCH in SBFD symbols, the following formula can be applied. Additionally, the SBFD_offset in the mathematical formula can be set or indicated by the gNB100. The value (dB) of SBFD_offset can be positive (e.g., +1 / 2 / 3 dB) or negative (e.g., -1 / 2 / 3 dB).

[0115]

[0116] (4.2.3) Action Example 3

[0117] Action Example 3 will be explained. In Action Example 3, UE200 decides whether to support repeated transmission of the HARQ-ACK PUCCH for Msg4 in the SBFD symbol (also referred to as Msg4 HARQ-ACK PUCCH or Msg4 PUCCH in this specification). Additionally, in this specification, Msg4 PUCCH can be replaced with the HARQ-ACK PUCCH before the dedicated PUCCH resource is set.

[0118] As a prerequisite, UE200 supports Msg4PUCCH without repeated transmissions in SBFD symbols (overlapping with SBFD symbols). Additionally, the SBFD symbols in Example 3 are, for example, SBFD DL symbols and / or SBFD FL symbols and / or SBFD SSB symbols. Furthermore, UE200 may not support Msg4PUCCH without repeated transmissions in SBFD symbols (overlapping with SBFD symbols).

[0119] The following explanation uses option A to illustrate the case where repeated transmission of Msg4 PUCCH in SBFD symbols is not supported, and option B to illustrate the case where repeated transmission of Msg4 PUCCH is supported. However, the choice between option A and option B can be predefined by the standard or set or indicated by gNB100.

[0120] (4.2.3.1) Option A

[0121] In option A, UE200 does not support repeated transmission of Msg4 PUCCH in SBFD symbols (overlapping with SBFD symbols).

[0122] First, as in case 1, if the SBFD symbol in option A does not contain the SBFD FL symbol, the traditional rules can be reused. That is, repeated transmissions of Msg4 PUCCH can be performed using both UL and FL symbols.

[0123] Next, as in scenario 2, if the SBFD symbol in option A includes the SBFD FL symbol, the decision on the repetitive time slot used for Msg4 PUCCH needs to be changed. This is because repetitive transmission of Msg4 PUCCH is permitted in both UL and FL symbols, but not in the SBFD FL symbol in this case.

[0124] In scenario 2, for Msg4 PUCCH with a repetition factor greater than 1, if the repeated transmission of PUCCH is located within a UL symbol or a non-SBFD FL symbol not set for SSB (or if the repeated transmission of PUCCH does not overlap with any SBFD symbol or non-SBFD DL / SSB symbol), UE200 determines the repetition time slot (N time slot) for Msg4 PUCCH as the original repetition time slot (N time slot) for Msg4 PUCCH.

[0125] (4.2.3.2) Option B

[0126] In Option B, the UE200 supports repeated transmission of Msg4 PUCCH (overlapping with SBFD symbols) in SBFD symbols. Additionally, the following description applies to cases where a repetition factor greater than 1 is indicated by DCI format 1_0 with a CRC scrambled by TC-RNTI for scheduling Msg4 (Msg4 PDSCH).

[0127] (4.2.3.2.1) Option B-1

[0128] In option B-1, repeated transmission of multiple Msg4 PUCCHs in multiple time slots can be performed in SBFD symbols (non-SBFD symbols) in different time slots.

[0129] In option B-1, UE200 determines the initial Msg4 PUCCH recurring time slot (N slot) starting from the indicated or set PUCCH reporting time slot. The initial Msg4 PUCCH recurring time slot has at least one of the following.

[0130] • UL symbol, FL symbol (non-SBFD) SSB symbol, and SBFD DL (or SSB) symbol as the initial symbol

[0131] • Starting from consecutive UL symbols, consecutive FL symbols (non-SBFD) SSB symbols, and the initial symbol, consecutive SBFD DL (or SSB) symbols exceeding the number of symbols given by nrofsymbols.

[0132] (Furthermore, when the PUCCH and SBFD symbols overlap within a time slot, the PUCCH RB does not overlap with the RB outside the UL subband within the SBFD symbol.)

[0133] • (Furthermore, PUCCH does not overlap with both SBFD and non-SBFD symbols simultaneously.)

[0134] (4.2.3.2.2) Option B-2

[0135] In option B-2, repeated transmission of multiple Msg4 PUCCHs in multiple time slots can be limited to SBFD symbols or to non-SBFD symbols.

[0136] Example 1: UE200 determines the symbol type (e.g., SBFD symbol type, non-SBFD symbol type) based on the initial time slot used for repeated transmission of Msg4 PUCCH.

[0137] The conditions of option B-2 in UE200, similar to those in action example 1, determine the initial time slot of the repeated time slot (N time slot) used by Msg4 PUCCH.

[0138] • When the Msg4 PUCCH symbol in the initial time slot is an SBFD symbol, the UE200 determines the repeated time slot (N time slot) used for Msg4 PUCCH as the repeated transmission time slot (N time slot) used for the initial Msg4 PUCCH within the SBFD symbol.

[0139] • When the Msg4 PUCCH symbol in the initial time slot is a non-SBFD symbol, the UE200 determines the repeated time slot (N slot) for the Msg4 PUCCH as the repeated time slot (N slot) for the initial Msg4 PUCCH if the repeated transmission of the PUCCH is located in the UL symbol or a non-SBFD FL symbol not set for SSB (or if the repeated transmission of the PUCCH does not overlap with any SBFD symbol or non-SBFD DL / SSB symbol).

[0140] Example 2: UE200 determines the symbol type (e.g., SBFD symbol type, non-SBFD symbol type) based on the indication of DCI format 1_0 with CRC scrambled by TC-RNTI based on the scheduling Msg4 (Msg4 PDSCH) or based on settings.

[0141] • When the indicated or set symbol type is SBFD symbol type, UE200 determines the repetition time slot (N time slot) used for Msg4 PUCCH as the initial repetition time slot (N time slot) used for Msg4 PUCCH within the SBFD symbol for the repeated transmission of PUCCH.

[0142] • When the indicated or set symbol type is non-SBFD symbol type, UE200 determines the repetition time slot (N time slot) used for Msg4PUCCH as the initial repetition time slot (N time slot) used for Msg4 PUCCH that does not overlap with any DL / SSB symbol or SBFD symbol during the repetition of PUCCH transmission.

[0143] Example 3: UE200 determines the repeated time slot (N time slot) used for Msg4 PUCCH in the same way as option B-2 in action example 1, and expects all PUCCH symbols in each time slot to be SBFD symbols or all non-SBFD symbols.

[0144] (4.2.4) Action Example 4

[0145] The following content can also be applied to the above action examples 1 to 3.

[0146] (4.2.4.1) The yes / no / request of Msg3 PUSCH in SBFD symbol

[0147] UE200 can also send a report / indication (required) via PRACH to indicate whether the identification of the time / frequency position of the SBFD subband is possible. In addition, UE200 can also send a report / indication (required) via PRACH to indicate whether / request the transmission of Msg3 PUSCH within the SBFD symbol.

[0148] As a variation of the latter, UE200 can also implicitly report the permission / request for transmission of Msg3 PUSCH within SBFD symbols by reporting the permission of the time / frequency position identification of the SBFD subband. For example, when UE200 reports the permission of the time / frequency position identification of the SBFD subband, this can imply / indicate whether / requests transmission of Msg3PUSCH within SBFD symbols are possible.

[0149] (4.2.4.2) The yes / no / request of Msg4 HARQ-ACK PUCCH in SBFD symbol

[0150] UE200 can report / indicate (requires reporting / indication) the availability of identification of the time / frequency position of the SBFD subband via PRACH or Msg3 PUSCH. Additionally, UE200 can also report / indicate (requires reporting / indication) the availability / request of Msg4 HARQ-ACK PUCCH transmission within the SBFD symbol via PRACH or Msg3 PUSCH.

[0151] As a variation of the latter, UE200 can also implicitly report the permission / request for transmission of Msg4 HARQ-ACK PUCCH within SBFD symbols by reporting the permission of identification of the time / frequency position of the SBFD subband. For example, when UE200 reports the permission of identification of the time / frequency position of the SBFD subband, this can imply / indicate the permission / request for transmission of Msg4HARQ-ACK PUCCH within the SBFD symbols.

[0152] Furthermore, as another variation, UE200 can also implicitly report the permission / request for transmission of Msg4 HARQ-ACK PUCCH within SBFD symbols by reporting the permission / request for transmission of Msg3 PUSCH within SBFD symbols. For example, when UE200 reports the permission / request for transmission of Msg3 PUSCH within SBFD symbols, this can imply / indicate the permission / request for transmission of Msg4 HARQ-ACK PUCCH within SBFD symbols.

[0153] (4.2.4.3) Reports / instructions on the permission / request of SBFD symbols transmitted via PRACH

[0154] When UE200 transmits via PRACH to report / indicate whether the identification of the time / frequency position of the SBFD subband is possible, and / or whether / request is transmitted via Msg3 PUSCH in the SBFD symbol, and / or whether / request is transmitted via Msg4 HARQ-ACK PUCCH in the SBFD symbol, it is possible to report whether / request is possible through a different PRACH resource than UEs that do not support / indicate whether / request is possible.

[0155] • Example 1: Individual preamble or PRACH resources can be configured based on feature combinations. In this case, feature combinations can indicate / set / import / define the recognition of time / frequency positions in SBFD subbands, and / or the permission / request for Msg3 PUSCH transmission within SBFD symbols, and / or the permission / request for Msg4 HARQ-ACK PUCCH transmission within SBFD symbols. For example, an additional RACH setting can be set as a feature combination, or a separate RO resource can be set thereby. Furthermore, individual preamble resources can also be set as feature combinations.

[0156] Example 2: Additional RACH settings can also be made for SBFD. In this case, UE200 implicitly indicates permission / request by using the RO in the RACH setting for SBFD. Furthermore, the rule used to determine the valid RO applied to the additional RACH setting can be either a traditional rule or an extended rule. Traditional and extended rules will be explained below.

[0157] The traditional rule for determining a valid RO is that a RO in the UL code (UL subband) or FL code (not set for SSB) from the UE's perspective is considered a valid RO, while a RO in the DL code (DL subband) or FL code (set for SSB) from the UE's perspective is considered an invalid RO.

[0158] The extended rules used for valid RO determination can also be composed of conditions used to determine valid ROs as shown below. Note that the extended rules used for valid RO determination are rules for cells where SBFD action is set on the gNB side. Furthermore, Cond-X in the figure corresponds to condition X.

[0159] Condition 1: All symbols are UL symbols

[0160] Condition 2: Each symbol is an FL symbol that has not been set for use by SSB.

[0161] Condition 3: Each symbol is a UL symbol or a non-SBFD FL symbol not set for SSB use.

[0162] • Condition 4: All symbols are SBFD symbols (e.g., SBFD DL symbols and / or SBFD FL symbols and / or SBFD SSB symbols).

[0163] • Condition 5: Each symbol is an SBFD symbol (e.g., SBFD DL symbol and / or SBFD FL symbol and / or SBFD SSB symbol) or a UL symbol, or an FL symbol not set for SSB, or a (non-SBFD) FL symbol not set for SSB.

[0164] • Condition 6: There must be at least an N_gap code segment following the last (non-SBFD) DL code segment, and / or at least an N_gap code segment following the last (non-SBFD) SSB code segment, and / or the (non-SBFD) code segment within the same PRACH slot must not precede the SSB code segment.

[0165] • Condition 7: Does not overlap with either non-SBFD symbols (e.g., UL symbols or non-SBFD FL symbols) or SBFD symbols (e.g., SBFDDL symbols and / or SBFD FL symbols and / or SBFD SSB symbols).

[0166] Condition 8: Does not overlap with non-SBFD DL symbols or (non-SBFD) SSB symbols

[0167] • Condition 9: The RB outside the UL subband in the SBFD symbol (e.g., SBFD DL symbol and / or SBFD FL symbol and / or SBFD SSB symbol) does not overlap.

[0168] That is, the valid ROs in the extended rules used to determine valid ROs can include combinations of ROs that satisfy one or more of these conditions. These combinations of conditions can be predefined in the standard or set by the gNB. For example, a valid RO can also include the following ROs.

[0169] Example 1: A Route that satisfies condition 1 (which is also determined to be a valid Route in the traditional rules).

[0170] Example 2: RO satisfying conditions 2 / 3 and 6

[0171] Example 2-1: If the parenthetical statement relating to non-SBFD is not applied in condition 6, it can be determined as a valid RO under conventional rules.

[0172] Example 2-2: In the case where the parenthetical statement relating to non-SBFD is applied in condition 6, it can be determined as an invalid RO under the conventional rule. This is because the conditions used to determine a valid RO in this case are further relaxed.

[0173] Example 3: RO satisfying conditions 2 / 3 and 9 (and 6)

[0174] Example 4: RO satisfying conditions 4 (and 6)

[0175] Example 5: RO satisfying conditions 4 and 9 (and 6)

[0176] Example 6: RO satisfying conditions 5 (and 6)

[0177] Example 7: RO satisfying conditions 5 and 9 (and condition 6)

[0178] Example 8: RO satisfying condition 7 (and at least one of conditions 6 / 8)

[0179] Example 9: RO satisfying conditions 7 and 9 (and at least one of conditions 6 / 8)

[0180] Example 3: After UE200 determines an RO as invalid by the conventional rules described above, it uses the RO that is determined as valid by the extended rules to implicitly indicate whether it is possible or not / requested.

[0181] (4.2.4.4) Reports / instructions on the permission / request of SBFD symbols sent via Msg3 PUSCH

[0182] When UE200 reports / indicates the availability of identification of the time / frequency position of the SBFD subband via Msg3 PUSCH, and / or the availability / request transmitted via Msg4 HARQ-ACK PUCCH in the SBFD symbol, it can report (or may report) the availability / request via higher-layer signaling (e.g., MAC CE) within Msg3 PUSCH. Furthermore, when UE200 reports / indicates the availability of identification of the time / frequency position of the SBFD subband via Msg3 PUSCH, and / or the availability / request transmitted via Msg4 HARQ-ACK PUCCH in the SBFD symbol, it can report (or may report) the availability / request via higher-layer signaling (e.g., DMRS port and / or TDRA and / or FDRA) within Msg3 PUSCH.

[0183] • Example: For DMRS ports that are different from those of UEs that do not support / do not indicate permission / request, they can be predefined for UEs that indicate / report permission / request, or they can be indicated.

[0184] • Example: Different TDRA interpretations can be applied to the indication / report permission / request of UE200. For example, the indication / report permission / request of UE200 can determine the time slot used for Msg3 PUSCH transmission when the Msg3 PUSCH symbol is an SBFD symbol.

[0185] • Example: Different FDRA interpretations can be applied to UE200 indicating / reporting permission / request. For example, UE200 indicating / reporting permission / request could also determine frequency domain resource allocation only within the UL subband of the SBFD symbol.

[0186] (4.2.4.5) Supports variations of features in the standard

[0187] • It can support PRACH transmission within SBFD symbols (e.g., SBFD DL symbols and / or SBFD FL symbols and / or SBFDSSB symbols, the same below), and / or Msg3 PUSCH transmission within SBFD symbols, and / or Msg4 HARQ-ACK PUCCH transmission within SBFD symbols in the standard.

[0188] • The standard may not support PRACH transmission within SBFD symbols, but it may support Msg3 PUSCH transmission within SBFD symbols and / or Msg4 HARQ-ACK PUCCH transmission within SBFD symbols.

[0189] • It is also possible to not support PRACH transmission within SBFD symbols and / or Msg3PUSCH transmission within SBFD symbols in the standard, but to support Msg4 HARQ-ACK PUCCH transmission within SSBFD symbols in the standard.

[0190] (4.2.4.6) Changes in UE capability

[0191] • UE200 may also not support / report the permission of PRACH transmission within SBFD symbols, but support / report the permission / request of Msg3 PUSCH transmission within SBFD symbols, and / or the permission / request of Msg4 HARQ-ACK PUCCH transmission within SBFD symbols.

[0192] • UE200 may also not support / report the yes / no / request of Msg3 PUSCH transmission within SBFD symbols, but report / indicate the yes / no / request of Msg4 HARQ-ACK PUCCH transmission within SBFD symbols.

[0193] • UE200 may also not support / report the yes / no / request of Msg4 HARQ-ACK PUCCH transmission within SBFD symbols, but report / indicate the yes / no / request of Msg3 PUSCH transmission within SBFD symbols.

[0194] • The permission to transmit PRACH within SBFD symbols may be a necessary condition for UE200 to report the permission / request of transmission of Msg3PUSCH within SBFD symbols, and / or the permission / request of transmission of Msg4 HARQ-ACK PUCCH within SBFD symbols.

[0195] • The permission to send Msg3 PUSCH within the SBFD symbol may be a necessary condition for UE200 to report the permission / request to send Msg4HARQ-ACK PUCCH within the SBFD symbol.

[0196] (5) Functions and effects

[0197] According to the above implementation method, UE200 can repeatedly send messages related to random access while taking into account the interference problem in scheduling where SBFD symbols and non-SBFD symbols coexist.

[0198] In particular, by setting only the second resource (SBFD slot / symbol) for repeatedly transmitting random access related messages, reliable transmission of random access related messages can be achieved regardless of the difference in interference levels with the first resource (non-SBFD slot / symbol). Furthermore, by setting both the first and second resources, which are consecutive in the time direction, for repeatedly transmitting random access related messages, rapid transmission of random access related messages can be achieved despite the difference in interference levels compared to the first resource.

[0199] (6) Other implementation methods

[0200] The present invention has been described above according to the embodiments, but the present invention is not limited to these descriptions and various modifications and improvements can be made, which will be obvious to those skilled in the art.

[0201] The above examples of actions can be combined and used in combination as long as they do not contradict each other.

[0202] Furthermore, the block diagrams used in the description of the above embodiments illustrate blocks based on functions. These functional blocks (components) are implemented through any combination of at least one of hardware and software. Moreover, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within the aforementioned single device or the aforementioned multiple devices.

[0203] The functions include judgment, decision, determination, calculation, calculation, processing, derivation, investigation, search, confirmation, receiving, sending, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assigning, but are not limited to these. For example, the functional block (structural part) that performs the sending function is called the transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0204] For example, in one embodiment of this disclosure, the base station 100, terminal 200, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 10 This is a diagram illustrating an example of the hardware structure of a base station 100 and a terminal 200 according to one embodiment of the present disclosure. The base station 100 and the terminal 200 described above may also be configured as a computer device that physically includes a processor 1001, a memory 1002, a storage device 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, etc.

[0205] Additionally, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 100 and terminal 200 can be configured to include one or more of the devices shown in the figures, or it can be configured to exclude some of the devices.

[0206] The functions of the base station 100 and the terminal 200 are implemented by reading predetermined software (programs) into hardware such as the processor 1001 and the memory 1002, so that the processor 1001 performs calculations and controls the communication of the communication device 1004 or controls at least one of reading out and writing data in the memory 1002 and the storage device 1003.

[0207] The processor 1001 controls the computer as a whole, for example, by instructing the operating system to operate. The processor 1001 may also be a central processing unit (CPU) that includes interfaces with peripheral devices, control devices, arithmetic devices, registers, etc.

[0208] 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. While the various processes described above are explained as being executed by one processor 1001, they can also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented using more than one chip. Additionally, the program can be transmitted from a network via a telecommunications line.

[0209] 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, main memory (main storage device), etc. The memory 1002 can store programs (program code), software modules, etc., that are executable for implementing the wireless communication method according to one embodiment of this disclosure.

[0210] 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 disks, 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 storage medium may be, for example, a database, server, or other suitable media that includes at least one of memory 1002 and storage device 1003.

[0211] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. For example, it may also be referred to as a network device, network controller, network interface card (NIC), communication module, etc. The communication device 1004 may also be configured to include high-frequency switches, duplexers, filters, frequency synthesizers, etc., to implement at least one of frequency division duplex (FDD) and time division duplex (TDD).

[0212] 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).

[0213] Furthermore, the processor 1001, memory 1002, and other devices are connected via a bus 1007 for communicating information. The bus 1007 can be configured using a single bus or different buses can be used between each device.

[0214] Furthermore, the base station 100 and the terminal 200 can be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a programmable logic device (PLD), 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.

[0215] The notification of information is not limited to the forms / implementations described in this disclosure, and other methods may also be used. For example, the notification of information may be implemented through physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling), broadcast information (Master Information Block (MIB), System Information Block (SIB)), other signals, or combinations thereof. Furthermore, RRC signaling may also be referred to as RRC messages, for example, RRC Connection Setup messages, RRC Connection Reconfiguration messages, etc.

[0216] The various forms / implementations described in this disclosure can also be applied to systems utilizing LTE (Long Term Evolution), LTE-A (LTE-Advanced), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (x is, for example, an integer or a decimal), Future Radio Access (FRA), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE The system may include at least one of 802.20, Ultra-Wideband (UWB), Bluetooth (registered trademark), other suitable systems, and next-generation systems based on these systems that have been extended, modified, generated, or specified. Additionally, multiple systems may be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0217] The processing procedures, timing, and flow of the various forms / implementations described in this disclosure may be changed in order, provided there is no 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.

[0218] In this disclosure, specific 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, various actions for communication with a terminal can obviously be performed by at least one of the base station and other network nodes besides the base station (e.g., consider MME or S-GW, but not limited to these). The above illustrates the 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., MME and S-GW).

[0219] 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.

[0220] Input or output information can be stored in a specific location (e.g., memory) or managed using a management table. Input or output information can be overwritten, updated, or appended. Output information can also be deleted. Input information can also be sent to other devices.

[0221] 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).

[0222] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a "It is X" notification) is not limited to being explicit, but can also be implicit (e.g., not being notified of the predetermined information).

[0223] 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.

[0224] In addition, software, commands, information, etc., can be sent and received via a transmission medium. For example, when software is sent from a webpage, server, or other remote source using at least one of wired technologies (coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL) etc.) and wireless technologies (infrared, microwave, etc.), at least one of these wired and wireless technologies is included within the definition of a transmission medium.

[0225] 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.

[0226] 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.

[0227] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0228] Furthermore, the information, parameters, etc., described in this disclosure can be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources can also be indicated using indexes.

[0229] The names used for the above parameters are non-limiting in any respect. Furthermore, the formulas, etc., using these parameters sometimes differ from those explicitly disclosed in this disclosure. Various channels (e.g., PUCCH, PDCCH, etc.) and information elements can be identified by all appropriate names, therefore the various names assigned to these channels and information elements are non-limiting in any respect.

[0230] 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.

[0231] A base station can accommodate one or more (e.g., three) cells (also called sectors). When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be divided into multiple smaller areas, each of which can also provide communication services through a base station subsystem (e.g., a small indoor base station (Remote Radio Head: RRH)). Terms such as "cell" or "sector" refer to a portion or all of the coverage area of ​​at least one of the base station and base station subsystem providing communication services within that coverage area.

[0232] 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.

[0233] In this disclosure, the terms "terminal", "user terminal", "mobile station (MS)" and "user equipment (UE)" are used interchangeably.

[0234] 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.

[0235] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Furthermore, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to a movable object with an arbitrary speed of movement. It also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, rear cars, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Additionally, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., car, airplane), a mobile body that moves unmanned (e.g., drone, autonomous vehicle), 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 operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0236] Furthermore, the base station in this disclosure can also be replaced by a terminal. For example, various forms / implementations of this disclosure can be applied to a structure that replaces the communication between the base station and the terminal with communication between multiple terminals (e.g., also referred to as D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.). In this case, the terminal 200 can also be configured to have the functions of the base station 100 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0237] Similarly, the terminal in this disclosure can also be replaced by a base station. In this case, the base station 100 can also be configured to have the functions of the terminal 200 described above.

[0238] Figure 11 An example of the structure of vehicle 2001 is shown. For example... Figure 11As 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.

[0239] The drive unit 2002 may consist of, for example, an engine, a motor, or a hybrid power system of an engine and a motor.

[0240] The steering unit 2003 includes at least a steering wheel (also called a steering wheel) configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0241] The electronic control unit 2010 consists of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (I / O port) 2033. Signals from various sensors 2021 to 2027 of the vehicle are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an Electronic Control Unit (ECU).

[0242] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front and rear wheels obtained by speed sensor 2022, air pressure signals of the front and rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal 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 obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0243] The Information Service Unit 2012 consists of various devices such as a car navigation system, audio system, speakers, television, and radio, which provide (output) various information such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The Information Service Unit 2012 uses information obtained from external devices via communication modules 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001.

[0244] The Information Services Department 2012 may include input devices that accept input from external sources (e.g., keyboard, mouse, microphone, switch, button, sensor, touch panel, etc.) and output devices that implement output to external sources (e.g., monitor, speaker, LED light, touch panel, etc.).

[0245] The Driver Assistance System 2030 comprises various devices used to provide functions such as preventing accidents or reducing the driver's workload, including millimeter-wave radar, light detection and ranging (LiDAR), cameras, positioning devices (e.g., GNSS), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps), gyroscope systems (e.g., inertial measurement units (IMUs), inertial navigation systems (INS)), artificial intelligence (AI) chips, and AI processors, as well as one or more ECUs that control these devices. Furthermore, the Driver Assistance System 2030 transmits and receives various information via the communication module 2013 to realize driver assistance or autonomous driving functions.

[0246] The communication module 2013 can communicate with the microprocessor 2031 and the components of the vehicle 2001 via the communication port. For example, the communication module 2013 can send and receive data with the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, gear shift lever 2006, left and right front wheels 2007, left and right rear wheels 2008, axle 2009, microprocessor 2031 in the electronic control unit 2010, memory (ROM, RAM) 2032, and sensors 2021 to 2029 in the vehicle 2001 via the communication port 2033.

[0247] 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.

[0248] The communication module 2013 can also wirelessly transmit at least one of the signals input to the electronic control unit 2010 from the various sensors 2021-2029, the information obtained based on those signals, and the information obtained via the information service unit 2012 based on input from an external source (user) to an external device. The electronic control unit 2010, the various sensors 2021-2029, and the information service unit 2012 can also be referred to as input units that receive input. For example, the PUSCH transmitted by the communication module 2013 can contain information based on the aforementioned inputs.

[0249] 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 provided by the vehicle. The information service unit 2012 can also be referred to as an output unit that outputs information (for example, outputs information to devices such as displays and speakers based on the PDSCH received by the communication module 2013 (or the data / information decoded from the PDSCH).

[0250] In addition, the communication module 2013 stores various information received from external devices in a memory 2032 available to the microprocessor 2031. The microprocessor 2031 can also control 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 2029, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0251] As used in this disclosure, terms such as "determining" and "determining" sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, which are considered as actions of "determining" or "determining." Furthermore, "determining" or "determining" may include actions such as receiving (e.g., receiving information), transmitting (e.g., sending information), inputting, outputting, and accessing (e.g., accessing data in memory), which are considered as actions of "determining" or "determining." Additionally, "determining" or "determining" may include actions such as resolving, selecting, choosing, establishing, and comparing, which are considered as actions of "determining" or "determining." That is, "judgment" and "decision" can include matters that are considered as having been "judged" or "decided". In addition, "judgment (decision)" can also be replaced by "assuming", "expecting", "considering", etc.

[0252] 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.

[0253] The reference signal can also be abbreviated as RS, or, depending on the standard applied, as a pilot.

[0254] 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".

[0255] 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 a first element and a second element does not imply that only two elements can be used, or that in any form the first element must precede the second element.

[0256] Alternatively, the term "unit" in the structure of the above devices can be replaced with "section," "circuit," "equipment," etc.

[0257] 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.

[0258] A radio frame can consist of one or more frames in the time domain. In the time domain, one or more frames can be called subframes. A subframe can also consist of one or more time slots in the time domain. A subframe can be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0259] 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.

[0260] A time slot can be composed of one or more symbols (Orthogonal Frequency Division Multiplexing (OFDM) symbols, Single Carrier Frequency Division Multiple Access (SC-FDMA) symbols, etc.) in the time domain. A time slot can be a time unit based on a set of parameters.

[0261] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Additionally, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type B.

[0262] 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.

[0263] For example, a subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, a time slot or a mini-time slot can also be called a TTI. That is to say, at least one of the subframe and TTI can be a subframe in the existing LTE (1ms), a period shorter than 1ms (e.g., 1 to 13 symbols), or a period longer than 1ms. In addition, the unit representing TTI can also be called a time slot, mini-time slot, etc., instead of a subframe.

[0264] Here, TTI refers, for example, to the smallest unit of time for scheduling in wireless communication. For instance, in an LTE system, the base station schedules the allocation of radio resources (bandwidth, transmit power, etc., available to each terminal) to each terminal in units of TTI. However, the definition of TTI is not limited to this.

[0265] 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.

[0266] Furthermore, when one time slot or one mini-time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini-time slot) can also 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.

[0267] A TTI with a duration of 1ms can also be called a normal TTI (TTI in LTE Rel.8~12), regular TTI, long TTI, normal subframe, regular subframe, long subframe, time slot, etc. A TTI shorter than a normal TTI can also be called a shortened TTI, short TTI, partial TTI (partial or fractional TTI), shortened subframe, short subframe, mini time slot, sub-time slot, time slot, etc.

[0268] Additionally, for long TTIs (e.g., normal TTIs, subframes, etc.), they can be replaced with TTIs with a duration of more than 1ms. For short TTIs (e.g., shortened TTIs, etc.), they can be replaced with TTIs with a duration of less than long TTIs but more than 1ms.

[0269] 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.

[0270] Furthermore, the temporal domain of an RB can contain one or more symbols, and can be 1 time slot, 1 mini-time slot, 1 subframe, or 1 TTI in length. 1 TTI, 1 subframe, etc., can each be composed of one or more resource blocks.

[0271] In addition, one or more RBs can also be called Physical Resource Blocks (PRBs), Sub-Carrier Groups (SCGs), Resource Element Groups (REGs), PRB pairs, RB pairs, etc.

[0272] Furthermore, a resource block can consist of one or more resource elements (REs). For example, 1 RE can be a radio resource area with 1 subcarrier and 1 symbol.

[0273] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in 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.

[0274] A BWP can include a UL BWP and a DL BWP. For a UE, one or more BWPs can be set within one carrier.

[0275] At least one of the configured BWPs can be active, and it is not assumed that the UE will transmit or receive predetermined signals / channels outside of an active BWP. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0276] The structures of radio frames, subframes, time slots, mini-time slots, and symbols described above are merely illustrative. For example, the number of subframes contained in a radio frame, the number of time slots in each subframe or radio frame, the number of mini-time slots contained within a time slot, the number of symbols and RBs contained in a time slot or mini-time slot, the number of subcarriers contained in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, and other structures can be varied in many ways.

[0277] The term "maximum transmit power" as used in this disclosure may refer to the maximum value of the transmit power, the nominal maximum transmit power, or the rated maximum transmit power.

[0278] In this disclosure, for example, in cases where articles are added through translation, such as in English (e.g., a, an, and the), this disclosure may also include cases where the noun following these articles is in a plural form.

[0279] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Furthermore, 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."

[0280] The present disclosure has been described in detail above, but it will be clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented as modifications and variations without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the present disclosure is for illustrative purposes only and is not intended to be limiting.

[0281] (Postscript)

[0282] The aforementioned disclosure can also be expressed as follows.

[0283] The first feature is a terminal comprising: a transmitting unit that uses a first resource for applying time division duplex or a second resource that can utilize a subband within the frequency band of the time division duplex with a transmission and reception direction different from the frequency band to repeatedly transmit messages related to random access; and a control unit that determines the second resource as the resource for repeated transmission.

[0284] The second feature is that, in the first feature, the transmitting unit uses the second resource that spans the first resource in the time direction to perform the repeated transmission.

[0285] The third feature is that, in the first or second feature, the transmitting unit transmits the permission for repeated transmission in the second resource by means of a preamble transmitted in the random access.

[0286] The fourth feature is that, in any one of the first to third features, the sending unit repeatedly transmits the message in relation to the physical uplink shared channel of the random access.

[0287] The fifth feature is that, in any one of the first to third features, the sending unit repeatedly transmits the physical uplink control channel related to the random access as the message.

[0288] The sixth feature is a terminal comprising: a transmitting unit that uses a first resource for applying time division duplex and a second resource that can repeatedly transmit messages related to random access within the frequency band of the time division duplex using a subband whose transmission and reception direction is different from that of the frequency band; and a control unit that determines the first resource and the second resource that are consecutive in the time direction as the resources for the repeated transmission.

[0289] Label Explanation

[0290] 10 Wireless Communication Systems

[0291] 20 NG-RAN

[0292] 100 base stations

[0293] 110 Wireless Signal Transceiver Unit

[0294] 120 Control Department

[0295] 200 terminals

[0296] 210 Wireless Signal Transceiver Unit

[0297] 220 Enlarged Section

[0298] 230 Modulation and Demodulation Section

[0299] 240 Control Signal & Reference Signal Processing Unit

[0300] 250: Encoding / Decoding Section

[0301] 260 Data Transceiver Department

[0302] 270 Control Department

[0303] 1001 processor

[0304] 1002 Memory

[0305] 1003 Storage device

[0306] 1004 Communication device

[0307] 1005 Input Device

[0308] 1006 Output Device

[0309] 1007 bus

[0310] Vehicle 2001

[0311] 2002 Drive Unit

[0312] 2003 Steering Unit

[0313] 2004 Accelerator Pedal

[0314] 2005 Brake Pedal

[0315] 2006 gearshift lever

[0316] Front wheels around 2007

[0317] 2008 rear wheels (left and right)

[0318] 2009 axle

[0319] 2010 Electronic Control Department

[0320] 2012 Information Service Department

[0321] 2013 Communication Module

[0322] 2021 Current Sensor

[0323] 2022 Speed ​​Sensor

[0324] 2023 Barometric Pressure Sensor

[0325] 2024 vehicle speed sensor

[0326] 2025 Accelerometer

[0327] 2026 Brake Pedal Sensor

[0328] 2027 Gearshift sensor

[0329] 2028 Object Detection Sensor

[0330] 2029 Accelerator Pedal Sensor

[0331] 2030 Driver Assistance Systems Department

[0332] 2031 microprocessor

[0333] 2032 Memory (ROM, RAM)

[0334] 2033 Communication Port (IO Port)

Claims

1. A terminal, comprising: The transmitting unit uses a first resource for time-division duplexing, or a second resource that can utilize a subband within the time-division duplex frequency band with a transmission / reception direction different from the frequency band, to repeatedly transmit messages related to random access; and The control unit determines the second resource as the resource for repeated transmission.

2. The terminal according to claim 1, wherein, The transmitting unit uses the second resource, which spans the first resource in the time direction, to perform the repeated transmission.

3. The terminal according to claim 1, wherein, The transmitting unit uses a preamble sent in the random access to send the permission for repeated transmission in the second resource.

4. The terminal according to claim 1, wherein, As a message, the transmitting unit repeatedly transmits the physical uplink shared channel related to the random access.

5. The terminal according to claim 1, wherein, As a message, the sending unit repeatedly transmits the physical uplink control channel related to the random access.

6. A terminal, comprising: The transmitting unit uses a first resource for applying time-division duplex and a second resource that can utilize a subband within the time-division duplex frequency band with a transmission / reception direction different from the frequency band, to repeatedly transmit messages related to random access; and The control unit determines the first and second resources, which are consecutive in the time direction, as the resources for repeated transmission.

Images