Terminal and communication method

Abstract

The terminal includes: a control unit that determines at least one of intra-symbol OCC (Optical Code Control) and inter-symbol OCC (Optical Code Control) applied to a PUSCH modulated by DFT-s-OFDM or OFDM, wherein DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, PUSCH refers to Physical Uplink Shared Channel, and OCC refers to Orthogonal Cover Code; and a transmission unit that transmits the PUSCH with the applied OCC to a base station, wherein the control unit multiplexes UCI (Uplink Control Information) before performing the spread for OCC application.

Description

Technical Field

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

[0002] In NR (New Radio) (also known as "5G"), which is the successor system to LTE (Long Term Evolution), technologies are being researched to meet the requirements of high-capacity systems, high-speed data transmission, low latency, simultaneous connection of multiple terminals, low cost, and power saving (e.g., Non-Patent Literature 1).

[0003] In addition, NTN (Non-Terrestrial Network) is currently under research. NTN uses non-terrestrial networks such as satellites to provide services to areas that are mainly inaccessible to terrestrial 5G networks due to cost constraints (e.g., non-patent literature 2 and non-patent literature 3).

[0004] Existing technical documents

[0005] Non-patent literature

[0006] Non-patent document 1: 3GPP TS 38.300 V17.7.0 (2023-12)

[0007] Non-patent literature 2: 3GPP TR 38.821 V16.2.0 (2023-03)

[0008] Non-Patent Document 3: Konishi, “A Study Related to Downlink Frequency Sharing in HAPS Mobile Communication Systems”, IEEE General Conference, B-17-1, 2020

[0009] Non-patent document 4: 3GPP TS 38.211 V17.6.0 (2023-09)

[0010] Non-patent document 5: 3GPP TS 38.212 V17.7.0 (2023-12) Summary of the Invention

[0011] The problem that the invention aims to solve

[0012] In NTN, due to the large distance between the base station and the terminal, and the limited resources of the base station, it is necessary to enhance the capacity and throughput of the UL (Uplink). Therefore, methods are being investigated to apply OCC (Orthogonal Cover Code) to the PUSCH (Physical Uplink Shared Channel) transmission of DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing).

[0013] The present invention was made in view of the above-mentioned problems, and its purpose is to increase the uplink capacity in wireless communication systems.

[0014] Methods for solving problems

[0015] According to the disclosed technology, a terminal is provided, comprising: a control unit that determines at least one of intra-symbol OCC and inter-symbol OCC applied to a PUSCH modulated by DFT-s-OFDM or OFDM, wherein DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, PUSCH refers to Physical Uplink Shared Channel, and OCC refers to Orthogonal Cover Code; and a transmission unit that transmits the PUSCH with the applied OCC to a base station, wherein the control unit multiplexes UCI before performing the spread for OCC application, wherein UCI refers to Uplink Control Information.

[0016] The effects of the invention

[0017] According to publicly available technologies, it is possible to increase the uplink capacity in wireless communication systems. Attached Figure Description

[0018] Figure 1 The diagram shows an example (1) of NTN.

[0019] Figure 2 The diagram shows an example (2) of NTN.

[0020] Figure 3 The diagram shows an example (3) of NTN.

[0021] Figure 4 The figure shows an example (4) of NTN.

[0022] Figure 5 This is a diagram showing example (1) of OCC.

[0023] Figure 6 The figure shows example (2) of OCC.

[0024] Figure 7 The figure shows an example (3) of OCC.

[0025] Figure 8 This is a diagram illustrating an example of PUSCH signal generation.

[0026] Figure 9 This is a flowchart illustrating an example of PUSCH transmission in an embodiment of the present invention.

[0027] Figure 10 This is a diagram illustrating an example (1) of OCC in an embodiment of the present invention.

[0028] Figure 11 This is a diagram illustrating example (2) of OCC in an embodiment of the present invention.

[0029] Figure 12 This is a diagram illustrating an example (3) of OCC in an embodiment of the present invention.

[0030] Figure 13 This is a diagram illustrating an example (4) of OCC in an embodiment of the present invention.

[0031] Figure 14 This is a diagram illustrating an example (5) of OCC in an embodiment of the present invention.

[0032] Figure 15 This is a diagram illustrating an example (6) of OCC in an embodiment of the present invention.

[0033] Figure 16 This is a diagram illustrating an example (7) of OCC in an embodiment of the present invention.

[0034] Figure 17 This is a diagram illustrating an example (8) of OCC in an embodiment of the present invention.

[0035] Figure 18 This is a diagram illustrating an example of the functional structure of base station 10 in an embodiment of the present invention.

[0036] Figure 19 This is a diagram illustrating an example of the functional structure of terminal 20 in an embodiment of the present invention.

[0037] Figure 20 This is a diagram illustrating an example of the hardware structure of a base station 10 or a terminal 20 in an embodiment of the present invention.

[0038] Figure 21 This is a diagram illustrating an example of the structure of a vehicle 2001 according to an embodiment of the present invention. Detailed Implementation

[0039] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. Furthermore, the embodiments described below are merely examples, and the application of the present invention is not limited to the embodiments described below.

[0040] In the operation of the wireless communication system according to embodiments of the present invention, existing technologies are appropriately used. These existing technologies include, for example, existing LTE, but are not limited to, existing LTE. Furthermore, unless otherwise stated, the term "LTE" as used in this specification has a broad meaning that includes LTE-Advanced and subsequent methods (e.g., NR).

[0041] Furthermore, in the embodiments of the present invention described below, the terms SS (Synchronization Signal), PSS (Primary SS), SSS (Secondary SS), PBCH (Physical broadcast channel), PRACH (Physical random access channel), PDCCH (Physical Downlink Control Channel), PDSCH (Physical Downlink Shared Channel), PUCCH (Physical Uplink Control Channel), and PUSCH (Physical Uplink Shared Channel) used in conventional LTE are used. These are for ease of description, and the same signals, functions, etc., can also be referred to by other names. In addition, the above terms in NR correspond to NR-SS, NR-PSS, NR-SSS, NR-PBCH, NR-PRACH, NR-PDCCH, NR-PDSCH, NR-PUCCH, and NR-PUSCH, respectively. However, even signals used for NR are not necessarily explicitly labeled as "NR-".

[0042] Furthermore, in embodiments of the present invention, the duplex mode can be TDD (Time Division Duplex), FDD (Frequency Division Duplex), or other modes (e.g., Flexible Duplex).

[0043] Furthermore, in embodiments of the present invention, the “configure” wireless parameters can be pre-configured predetermined values ​​or wireless parameters notified from the base station 10 or the terminal 20.

[0044] Figure 1 This is a diagram illustrating example (1) of NTN. NTN (Non-Terrestrial Network) refers to a network that uses non-terrestrial devices such as satellites to provide services to areas that are primarily inaccessible to terrestrial 5G networks due to cost constraints. Furthermore, NTN enables the provision of more reliable services. For example, it is envisioned for applications in IoT (Internet of Things), ships, buses, trains, and critical communications. Additionally, NTN offers scalability based on efficient multicast or broadcast.

[0045] As an example of NTN, such as Figure 1 As shown, satellite 10A can retransmit signals sent from ground base station 10B and can provide services to areas such as mountainous regions where no ground base stations are deployed.

[0046] Alternatively, a terrestrial 5G network can also have the structure described below. A terrestrial 5G network includes one or more base stations 10 and terminals 20. Base station 10 is a communication device that provides one or more cells and wirelessly communicates with terminals 20. The physical resources of the wireless signal are defined in the time and frequency domains; the time domain can be defined by the number of OFDM symbols, and the frequency domain can be defined by the number of subcarriers or resource blocks. Base station 10 sends synchronization signals and system information to terminal 20. Synchronization signals are, for example, NR-PSS and NR-SSS. System information is transmitted, for example, via NR-PBCH, also known as broadcast information.

[0047] Base station 10 sends control signals or data to terminal 20 via DL (Downlink) and receives control signals or data from terminal 20 via UL (Uplink). Both base station 10 and terminal 20 are capable of beamforming for signal transmission and reception. Furthermore, both base station 10 and terminal 20 can apply MIMO (Multiple Input Multiple Output) based communication to DL or UL. Additionally, base station 10 and terminal 20 can also communicate via CA (Carrier Aggregation) based SCell (Secondary Cell) and PCell (Primary Cell).

[0048] Terminal 20 is a communication device with wireless communication capabilities, such as a smartphone, mobile phone, tablet computer, wearable terminal, or M2M (Machine-to-Machine) communication module. Terminal 20 receives control signals or data from base station 10 via DL and sends control signals or data to base station 10 via UL, thereby utilizing various communication services provided by the wireless communication system.

[0049] Figure 2 This is a diagram illustrating example (2) of an NTN. The area of ​​each cell or beam in an NTN is much wider compared to a terrestrial network (TN). Figure 2 This illustrates an example of an NTN structure formed through satellite retransmission. The connection between satellite 10A and NTN gateway 10B is called a feeder link, and the connection between satellite 10A and UE20 is called a service link.

[0050] like Figure 2 As shown, the differential delay between the near-side UE20A and the far-side UE20B is, for example, 10.3 ms in the case of GEO (Geosynchronous orbit) and 3.2 ms in the case of LEO (Low Earth orbit). Additionally, the beam size in the NTN is, for example, 3500 km in the case of GEO and 1000 km in the case of LEO.

[0051] Figure 3 This is a diagram illustrating example (3) of NTN. For example... Figure 3As shown, NTN is realized by satellites in space or flying objects in the air. For example, a satellite in GEO can be a satellite in a geostationary orbit at an altitude of 35,786 km. For example, a satellite in LEO can be a satellite in an orbit at an altitude of 500-2000 km with a period of 88-127 minutes. For example, HAPS (High Altitude Platform Station) can be a flying object in a hovering flight at an altitude of 8-50 km.

[0052] like Figure 3 As shown, GEO satellites, LEO satellites, and HAPS spacecraft can connect to ground station gNBs via gateways. Furthermore, the service area can be expanded in the order of HAPS, LEO, and GEO.

[0053] For example, NTN can extend the coverage of 5G networks to non-service areas or service areas. Additionally, NTN can improve the continuity, availability, and reliability of services in ships, buses, trains, or other critical communications. Furthermore, NTN can be notified by sending dedicated parameters to terminal 20; these dedicated parameters may be, for example, parameters related to the determination of Timing Advance (TA) based on satellite or airborne information.

[0054] Figure 4 The figure shows an example (4) of NTN. Figure 4 This illustrates an example of an NTN network architecture conceived as a transparent payload. Figure 4 As shown, the Core Network (CN) 10D, gNB 10C, and gateway 10B are interconnected. Gateway 10B is connected to satellite 10A via a feeder link. Satellite 10A is connected to terminal 20A or VSAT (Very Small Aperture Terminal) 20B via a service link. NR Uu is established between gNB 10C and terminal 20A or VSAT 20B.

[0055] Furthermore, the network architecture of NTN can employ either FDD or TDD. Additionally, the terrestrial cells can be fixed or mobile. Furthermore, terminal 20 can have GNSS (Global Navigation Satellite System) support capabilities. For example, a power level 3 handheld device can be envisioned in FR1. Additionally, VSAT devices can be envisioned at least in FR2.

[0056] Furthermore, the NTN network architecture can also envision regenerative payloads. For example, gNB functionality could be carried on satellites or spacecraft. Alternatively, gNB-DU could be carried on a satellite or spacecraft, while gNB-CU could be configured as a ground station.

[0057] In NTN (Non-Terrestrial Network), due to limited satellite resources, there is a need to enhance UL capacity and throughput. Therefore, methods are being investigated to apply OCC (Orthogonal Cover Code) to PUSCH transmission in DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing). Alternatively, OFDM can also be applied to PUSCH transmission.

[0058] Figure 5 This is a diagram illustrating example (1) of OCC. For example... Figure 5 As shown, time-domain OCC can be applied to PUCCH. Two complex symbols obtained by repeatedly modulating the complex symbol y(n) of PUCCH format 1 (refer to non-patent document 4) in the time domain are multiplied by orthogonal sequences w0(m) and w1(m), respectively. The orthogonal sequence w... i (m) is specified in the specification (see Non-Patent Literature 4).

[0059] Figure 6 This is a diagram illustrating example (2) of OCC. For example... Figure 6 As shown, frequency domain OCC can be applied to PUCCH. The four complex symbols obtained by repeatedly modulating the sequence d(0), d(1), d(2), d(3), d(4), and d(5) as PUCCH format 4 (refer to non-patent document 4) in the frequency domain are multiplied by the orthogonal sequences w0(k), w1(k), w2(k), and w3(k), respectively. The orthogonal sequence w i (k) As specified in the regulations (see Non-Patent Literature 4).

[0060] Figure 7 This is a diagram illustrating example (3) of OCC. OCC is introduced in DMRS (Demodulation reference signal) oriented towards PUSCH. Regarding FD (Frequency division)-OCC, w f (0) and w f (1) 2FD-OCC was used for basic DMRS, employing wf (0) to w f (3) 4FD-OCC is used for Enhanced DMRS. Regarding TD (Time Division)-OCC, w is used. l (0) and w l (1) 2FD-OCC was used in dual-symbol DMRS. Figure 7 This is an example of applying TD-OCC and FD-OCC to the DMRS of PUSCH.

[0061] Regarding DMRS ports, the basic number of DMRS ports is as follows.

[0062] Setting type 1: Single-symbol DMRS: 2 (comb / FDM) × 2 (FD-OCC) = 4 ports Dual-symbol DMRS: 2 (comb / FDM) × 2 (FD-OCC) × 2 (TD-OCC) = 8 ports Setting type 2: Single-symbol DMRS: 3 (FDM) × 2 (FD-OCC) = 6 ports Dual-symbol DMRS: 3 (comb teeth) × 2 (FD-OCC) × 2 (TD-OCC) = 12 ports The number of ports for the extended DMRS is as follows.

[0063] Setting type 1: Single-symbol DMRS: 4 (comb / FDM) × 2 (FD-OCC) = 8 ports Dual-symbol DMRS: 4 (comb / FDM) × 2 (FD-OCC) × 2 (TD-OCC) = 16 ports Setting type 2: Single-symbol DMRS: 6 (FDM) × 2 (FD-OCC) = 12 ports Dual-symbol DMRS: 6 (comb teeth) × 2 (FD-OCC) × 2 (TD-OCC) = 24 ports Figure 8 This is a diagram illustrating an example of PUSCH signal generation. (Example) Figure 8 As shown, the scrambled bit block b ～（q） (i) is input into sequence modulation. A block d of complex modulation symbols （q） (i) is input to the layer mapping. The complex modulation symbols x(i) of each codeword mapped to the layer are input to the transform precoder. The block y of the complex modulation symbols （0） (k) is input into the pre-encoder. The pre-encoded block z of the vector （p0） (i) is input into the mapping to physical resources.

[0064] In non-codebook-based transmission, the precoding matrix W is an identity matrix. In codebook-based transmission, the precoding matrix W depends on the number of antenna ports used in the transmission (see Non-Patent Document 4).

[0065] Figure 9 This is a flowchart illustrating an example of PUSCH transmission in an embodiment of the present invention. In step S101, the UE determines the OCC to be applied to the repeated PUSCH transmission. In step S102, the UE performs repeated PUSCH transmission with the OCC applied.

[0066] Furthermore, "orthogonal code" or "set of OCC sequences" refers to a sequence of orthogonal codes or orthogonal overlay codes applied to the PUSCH data transmission of a multiplexed UE. For example, an orthogonal code or orthogonal overlay code of length 4 is [1, -1, 1, -1], and "1 bit of orthogonal code or orthogonal overlay code" refers to 1 or 1-1.

[0067] When OCC is applied to PUSCH, the rules for UCI multiplexing on PUSCH need to be enhanced. Research is needed on UCI multiplexing using inter-slot OCC, intra-symbol OCC, and inter-symbol OCC.

[0068] The encoded UCI bits are multiplexed into the PUSCH according to the process shown below (see Non-Patent Document 5). This process is known as the conventional rule.

[0069] Step 1) Calculate the number of resource units reserved for potential HARQ-ACK transmission when the number of HARQ-ACK information bits is 0, 1, or 2 bits and there is no CG-UCI.

[0070] Step 2) If HARQ-ACK is present in the transmission of this PUSCH and the number of HARQ-ACK information bits is greater than 2, or if it is accompanied by CG-UCI, map the HARQ-ACK information to the resource element.

[0071] Step 3) When the CSI exists in a transmission on the PUSCH, map the CSI to the resource element.

[0072] Step 4) When the UL-SCH is in transmission on the PUSCH, map the UL-SCH to the resource element.

[0073] Step 5) If there is a HARQ-ACK for transmission on a PUSCH without CG-UCI and the number of HARQ-ACK information bits is 2 or less, map the HARQ-ACK information to the resource element.

[0074] Step 6) Generate encoded bits.

[0075] Action 1) When the PUSCH is transmitted via intra-symbol pre-DFT-OCC (i.e., FD-OCC), if UCI multiplexing on the PUSCH is applied to the overlap between the PUSCH and PUCCH regardless of repetition, the UCI information is multiplexed on the first RB, the set of first RBs, or the set of first subcarriers according to the traditional rules (steps 1-6 above). Block extension (i.e., copying processing of transmitted information for OCC application) is applied before transform precoding, and the UCI multiplexed to the first RB, the set of first RBs, or the set of first subcarriers is extended to other RBs or the set of subcarriers. Furthermore, this embodiment also applies to the case of non-periodic or semi-persistent CSI reporting on the PUSCH, i.e., when there is no PUCCH overlapping on the PUSCH.

[0076] Figure 10 This is a diagram illustrating an example (1) of OCC in an embodiment of the present invention. Figure 10 An example of a 4PRB PUSCH is shown. Figure 10 As shown, PUSCH, DMRS, and UCI are mapped. Additionally, DMRS symbols may include several unused REs. Figure 10 OCC is not used in this context. PUSCH can refer to UL-SCH, and the same applies below.

[0077] Figure 11 This is a diagram illustrating example (2) of OCC in an embodiment of the present invention. Figure 11 This is an example of an FD-OCC with a frequency domain of 1 PRB and an application length of 2. The UCI is multiplexed on the first 6 subcarriers, and the UCI, DMRS, and UL-SCH are replicated and mapped on the remaining 6 subcarriers through block expansion.

[0078] Figure 12 This is a diagram illustrating an example (3) of OCC in an embodiment of the present invention. Figure 12 This is an example of an FD-OCC with a frequency domain of 4 PRBs and an application length of 2. The UCI is multiplexed on the first 2 PRBs, and the UCI, DMRS, and UL-SCH are copied and mapped on the remaining 2 PRBs through block expansion.

[0079] Figure 13 This is a diagram illustrating an example (4) of OCC in an embodiment of the present invention. Figure 13 This is an example of an FD-OCC with a frequency domain of 4 PRBs and an application length of 4. The UCI is multiplexed on the initial PRB, and the UCI, DMRS, and UL-SCH are copied and mapped on each of the remaining 3 PRBs through block expansion.

[0080] The UCI is multiplexed into the initial set or sets of subcarriers. Each set is assigned 1 bit of OCC. Let k′ be the subcarrier index of the scheduled PUSCH, assuming it starts from 0 to M. sc PUSCH Up to ′-1. M sc PUSCH This is the number of subcarriers in the PUSCH. M sc PUSCH ′ is the number of subcarriers of PUSCH before pre-DFT-OCC, i.e., the number of subcarriers before extension.

[0081] M sc PUSCH =M sc PUSCH / N, where N can be represented as {1, 2, ..., maximum length of OCC}.

[0082] k and M sc PUSCH It can be replaced by k′ and M sc PUSCH And apply the traditional rules of cases 1) to 6) above. That is, the mapping to OCI resources and PUSCH can be oriented towards the initial set or each set of subcarriers.

[0083] Extensions can also be applied after reusing UCI.

[0084] Figure 14 This is a diagram illustrating example (5) of the OCC in an embodiment of the present invention. Figure 14 As shown, expansion can be performed by multiplying the first 6 subcarriers by weight w0 and the next 6 subcarriers by weight w1.

[0085] When a PUSCH is transmitted in inter-symbol OCC mode (i.e., intra-slot TD-OCC), the following actions can be performed when UCI multiplexing is applied to the PUSCH over overlap with PUSCH and PUCCH that are not accompanied or are accompanied by repetition.

[0086] UCI information is multiplexed onto the first X symbols of a time slot according to traditional rules. Block-based extensions can be applied before or after transform precoding. UCI multiplexed onto the first X symbols can be extended to symbols of other sets or clusters.

[0087] Initially, X symbols are allocated as a unit of 1 bit OCC. For example, X = (number of PUSCH data symbols / length of the applied OCC), which is an integer value.

[0088] Furthermore, the proposal can also be applied to non-periodic or semi-static CSI reporting on PUSCH. That is, it can also be applied to situations where PUCCHs do not overlap in PUSCH.

[0089] The UCI is multiplexed into the initial set or sets of subcarriers. Each set is assigned 1 bit of OCC. Let L′ be the OFDM symbol index of the scheduled PUSCH, assuming it starts from 0 to M. symbol PUSCH ′-1. M symbol PUSCH M is the number of OFDM symbols in the PUSCH. symbol PUSCH ′ is the number of OFDM symbols in the PUSCH before OCC, i.e., the number of OFDM symbols before extension.

[0090] M symbol PUSCH =M symbol PUSCH / N, where N can be represented as {1, 2, ..., maximum length of OCC}.

[0091] L and M symbol PUSCH It can be replaced by L′ and M symbol PUSCH And apply the traditional rules of cases 1) to 6) above. That is, the mapping to OCI resources and PUSCH can be directed to the initial set or each set of OFDM symbols.

[0092] Extensions can also be applied after reusing UCI.

[0093] Figure 15 This is a diagram illustrating an example (6) of the OCC in an embodiment of the present invention. Figure 15 As shown, the expansion can be performed by multiplying the first 7 OFDM symbols by weight w0 and the next 7 OFDM symbols by weight w1.

[0094] like Figure 15 As in the example, one can imagine that the DMRSs in each set or cluster of OFDM symbols are located in the same position for each set or cluster. Network-based settings or instructions can ensure that the DMRSs are configured in the same position for each set or cluster. Alternatively, the DMRS positions can be determined for the initial set or cluster, and these positions can also be applied to the remaining sets or clusters.

[0095] When the DMRS in different sets or clusters of symbols assigned to an OCC are not in the same position, the following options can be applied.

[0096] Option 1) UCI ​​reuse is not envisioned. UCI or PUCCH is discarded.

[0097] 2) The UCI multiplexed on the initial X symbols is directly extended to the set or cluster of other symbols. Symbols with DMRS are excluded from this behavior. That is, for symbol groups other than those with DMRS, the actual position of the DMRS can be disregarded when performing the extension.

[0098] Figure 16 This is a diagram illustrating an example (7) of the OCC in an embodiment of the present invention. Figure 16 As shown, when configuring DMRS for symbol #2 of the starting set, configuring UCI for symbols #0, #1, and #3 of the starting set, configuring PUSCH for symbols #4, #5, and #6 of the starting set, and configuring DMRS for symbol #5 of the next set, it is possible to configure UCI for symbols #0, #1, and #2 of the next set, and configure PUSCH for symbols #3, #4, and #6 of the next set.

[0099] For example, UCI is mapped starting from the first non-DMRS symbol, and UCI or data is not transmitted on DMRS symbols. That is, UCI multiplexing is not associated with the symbol position where DMRS is used.

[0100] Option 3) The UCI (i.e., HARQ-ACK) mapped before the first DMRS symbol of the first set or cluster can be extended to the first DMRS symbol of each set or cluster.

[0101] Figure 17 This is a diagram illustrating an example (8) of the OCC in an embodiment of the present invention. Figure 17 As shown, the UCI (HARQ-ACK) of symbol #3, which was mapped to the first DMRS symbol of the first set or cluster before expansion, can be expanded (mapped) to the symbol #5, which was mapped to the first DMRS symbol of the second set or cluster. Additionally, the UCI (CSI) mapped from the starting symbol of the first set or cluster can be expanded (mapped) to the starting symbol of the second set or cluster.

[0102] Option 3) Symbols with UCI can be applied regardless of whether UL-SCH is included. Option 3) Symbols with UCI can also be applied only when UL-SCH is not included. Option 3) Symbols with HARQ-ACK can also be applied regardless of whether CSI is included. Option 3) Symbols with HARQ-ACK can also be applied only when CSI is not included.

[0103] In addition, inter-slot OCC, inter-symbol OCC, and intra-symbol OCC can also be combined and applied to PUSCH simultaneously.

[0104] The following UE capabilities can also be defined.

[0105] • Does it support PUSCH for application slot-to-slot, symbol-to-symbol, and intra-symbol OCC?

[0106] • Does it support the application of inter-slot, inter-symbol, and intra-symbol OCC PUSCH when UCI multiplexing is activated?

[0107] • Does it support UCI multiplexing on PUSCH that uses inter-slot, inter-symbol, and intra-symbol OCC?

[0108] Additionally, the OCC index can be replaced with the antenna port index. Furthermore, OCC and the OCC index can be interchanged. Additionally, OCC and / or the OCC index can be replaced with information related to the OCC. Information related to the OCC could be, for example, the length of the OCC. Furthermore, the above actions can be applied when performing UCI multiplexing of PUSCH, or when not performing UCI multiplexing of PUSCH.

[0109] According to the above embodiments, applying OCC in PUSCH transmission can increase the UL capacity and improve the throughput of the system.

[0110] That is, in wireless communication systems, it can increase the uplink capacity.

[0111] (Device structure)

[0112] Next, an example of the functional structure of the base station 10 and terminal 20 performing the processes and actions described above will be explained. The base station 10 and terminal 20 include the functions implemented in the above embodiments. However, the base station 10 and terminal 20 may each have only a portion of the functions described in the embodiments.

[0113] <Base Station 10>

[0114] Figure 18 This is a diagram illustrating an example of the functional structure of base station 10 in an embodiment of the present invention. For example... Figure 18 As shown, the base station 10 has a transmitting unit 110, a receiving unit 120, a setting unit 130 and a control unit 140. Figure 18 The functional structure shown is only one example. As long as the actions involved in the embodiments of the present invention can be performed, the functional distinctions and names of the functional parts can be arbitrary.

[0115] The transmitting unit 110 includes the function of generating a signal to be transmitted to the terminal 20 and wirelessly transmitting the signal. Furthermore, the transmitting unit 110 transmits inter-network node messages to other network nodes. The receiving unit 120 includes the function of receiving various signals transmitted from the terminal 20 and obtaining, for example, higher-level information from the received signals. Furthermore, the transmitting unit 110 has the function of transmitting NR-PSS, NR-SSS, NR-PBCH, DL / UL control signals, etc., to the terminal 20. Furthermore, the receiving unit 120 receives inter-network node messages from other network nodes.

[0116] The setting unit 130 stores preset setting information and various setting information sent to the terminal 20. The content of the setting information includes, for example, information related to communication in the NTN.

[0117] As described in the embodiment, the control unit 140 performs control related to communication in the NTN. Furthermore, the control unit 140 controls communication with the terminal 20 based on a UE capability report related to radio parameters received from the terminal 20. Alternatively, the signal transmission-related functions of the control unit 140 may be included in the transmitting unit 110, and the signal reception-related functions of the control unit 140 may be included in the receiving unit 120.

[0118] Terminal 20

[0119] Figure 19 This is a diagram illustrating an example of the functional structure of terminal 20 in an embodiment of the present invention. For example... Figure 19 As shown, the terminal 20 has a transmitting unit 210, a receiving unit 220, a setting unit 230, and a control unit 240. Figure 19 The functional structure shown is only one example. As long as the actions involved in the embodiments of the present invention can be performed, the functional distinctions and names of the functional parts can be arbitrary.

[0120] The transmitting unit 210 generates a transmission signal based on the transmission data and transmits the transmission signal wirelessly. The receiving unit 220 wirelessly receives various signals and obtains higher-layer signals from the received physical layer signals. Furthermore, the receiving unit 220 has the function of receiving NR-PSS, NR-SSS, NR-PBCH, DL / UL / SL control signals, etc., transmitted from the base station 10. For example, as D2D communication, the transmitting unit 210 transmits PSCCH (Physical Sidelink Control Channel), PSSCH (Physical Sidelink Shared Channel), PSDCH (Physical Sidelink Discovery Channel), PSBCH (Physical Sidelink Broadcast Channel), etc., to other terminals 20, and the receiving unit 120 receives PSCCH, PSSCH, PSDCH, or PSBCH from other terminals 20.

[0121] The setting unit 230 stores various setting information received from the base station 10 by the receiving unit 220. In addition, the setting unit 230 also stores preset setting information. The content of the setting information includes, for example, information related to communication in the NTN.

[0122] As described in the embodiment, the control unit 240 performs control related to communication in the NTN. Alternatively, the signal transmission-related functions of the control unit 240 may be included in the transmitting unit 210, and the signal reception-related functions of the control unit 240 may be included in the receiving unit 220.

[0123] (Hardware structure)

[0124] The block diagram used in the description of the above embodiments ( Figure 18 and Figure 19 The diagram illustrates blocks organized by function. These functional blocks (structural units) are implemented through any combination of at least one of hardware and software. Furthermore, there are no particular limitations on the implementation method of each functional block. That is, each functional block can be implemented using a single device that is physically or logically combined, or by directly or indirectly (e.g., using wired, wireless, etc.) connecting two or more physically or logically separate devices. Functional blocks can also be implemented by combining software within the aforementioned single or multiple devices.

[0125] 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, a functional block (structural unit) that performs the sending function is called a transmitting unit or transmitter. In short, as mentioned above, there are no particular limitations on the implementation method.

[0126] For example, in one embodiment of this disclosure, the base station 10, terminal 20, etc., can also function as a computer for processing the wireless communication method of this disclosure. Figure 20 This is a diagram illustrating an example of the hardware structure of a base station 10 and a terminal 20 according to an embodiment of the present disclosure. The base station 10 and the terminal 20 may also be configured as a computer device that physically includes a processor 1001, a storage device 1002, an auxiliary storage device 1003, a communication device 1004, an input device 1005, an output device 1006, and a bus 1007.

[0127] Additionally, in the following description, the term "device" can be replaced with "circuit," "device," "unit," etc. The hardware structure of base station 10 and terminal 20 can be configured to include one or more of the devices shown in the figures, or it can be configured to not include any of them.

[0128] The functions of base station 10 and terminal 20 are implemented by reading predetermined software (program) into hardware such as processor 1001 and storage device 1002, so that processor 1001 performs calculations and controls the communication of communication device 1004 or controls at least one of reading and writing data in storage device 1002 and auxiliary storage device 1003.

[0129] 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 units, arithmetic units, registers, etc. For example, the control unit 140 and control unit 240 described above can also be implemented using the processor 1001.

[0130] Furthermore, the processor 1001 reads programs (program code), software modules, or data from at least one of the auxiliary storage devices 1003 and communication devices 1004, and performs various processes accordingly. As a program, a program is used that causes the computer to perform at least a portion of the actions described in the above embodiments. For example, Figure 18 The control unit 140 of the base station 10 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. And, for example, Figure 19 The control unit 240 of the terminal 20 shown can also be implemented by a control program stored in the storage device 1002 and operated in the processor 1001. Although it has been described that the various processes described above are executed by one processor 1001, the various processes described above can also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 can also be implemented by more than one chip. In addition, the program can also be sent from the network via a telecommunications line.

[0131] Storage device 1002 is a computer-readable recording medium, and may be composed of at least one of ROM (Read Only Memory), EPROM (Erasable Programmable ROM), EEPROM (Electrically Erasable Programmable ROM), RAM (Random Access Memory), etc. Storage device 1002 may also be referred to as a register, cache, main memory (main storage device), etc. Storage device 1002 can store programs (program code), software modules, etc., that are executable for implementing the communication method according to one embodiment of this disclosure.

[0132] The auxiliary storage device 1003 is a computer-readable recording medium, such as at least one of the following: CD-ROM (CompactDisc ROM) or other optical discs, hard disks, floppy disks, magneto-optical discs (e.g., compact discs, digital multifunction discs, Blu-ray discs), smart cards, flash memory (e.g., cards, sticks, key drives), floppy disks, magnetic stripes, etc. The aforementioned storage medium may, for example, be a database, server, or other suitable media that includes at least one of the storage device 1002 and the auxiliary storage device 1003.

[0133] The communication device 1004 is hardware (transceiver) used for communication between computers via at least one of a wired network and a wireless network. It may also be referred to as a network device, network controller, network interface card (NIC), communication module, etc. The communication device 1004 may, for example, be configured to include a high-frequency switch, duplexer, filter, frequency synthesizer, etc., to implement at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, transceiver antennas, amplifiers, transceiver units, transmission path interfaces, etc., can also be implemented using the communication device 1004. The transceiver unit may also be physically or logically separated into a transmitting unit and a receiving unit.

[0134] 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).

[0135] Furthermore, the processor 1001 and storage device 1002, among other devices, are connected via a bus 1007 for communicating information. The bus 1007 can be configured as a single bus or as different buses used between the devices.

[0136] Furthermore, the base station 10 and the terminal 20 can be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an ASIC (Application Specific Integrated Circuit), a PLD (Programmable Logic Device), or a FPGA (Field Programmable Gate Array), and can also use this hardware to implement part or all of the functional blocks. For example, the processor 1001 can also be implemented using at least one of these hardware components.

[0137] Figure 21 An example of the structure of vehicle 2001 is shown. For example... Figure 21As shown, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a gearshift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021-2029, an information service unit 2012, and a communication module 2013. The various forms / implementations described in this disclosure can also be applied to communication devices mounted on the vehicle 2001, for example, to the communication module 2013.

[0138] The drive unit 2002 may be composed, for example, an engine, a motor, or a hybrid power system 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 wheels and the rear wheels based on the operation of the steering wheel by the user.

[0139] 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 2029 of the vehicle 2001 are input to the electronic control unit 2010. The electronic control unit 2010 can also be referred to as an ECU (Electronic Control Unit).

[0140] The signals from various sensors 2021 to 2029 include current signals from current sensor 2021 that senses the current of the motor, speed signals of the front or rear wheels obtained by speed sensor 2022, air pressure signals of the front or rear wheels obtained by air pressure sensor 2023, vehicle speed signals obtained by vehicle speed sensor 2024, acceleration signals obtained by acceleration sensor 2025, accelerator pedal depress signal obtained by accelerator pedal sensor 2029, brake pedal depress signal obtained by brake pedal sensor 2026, gear lever operation signals obtained by gear lever sensor 2027, and detection signals obtained by object detection sensor 2028 for detecting obstacles, vehicles, pedestrians, etc.

[0141] The Information Service Unit 2012 comprises various devices such as a car navigation system, audio system, speakers, television, and radio, used to 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 a communication module 2013, etc., to provide various multimedia information and multimedia services to the occupants of the vehicle 2001. The Information Service Unit 2012 may include input devices that accept input from external sources (such as keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.), and may also include output devices that perform output to external sources (such as displays, speakers, LED lights, touch panels, etc.).

[0142] 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.

[0143] 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, front wheel 2007, rear wheel 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.

[0144] 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.

[0145] 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 described above, the information obtained based on those signals, and the information obtained via the information service unit 2012 based on input from an external source (user) to an external device. The electronic control unit 2010, the various sensors 2021-2028, 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 can contain information based on the aforementioned inputs.

[0146] The communication module 2013 receives various information (traffic information, signal information, vehicle-to-vehicle information, etc.) sent from external devices and displays it on the information service unit 2012 of the vehicle 2001. The information service unit 2012 can also be referred to as an output unit for outputting information (e.g., outputting information to devices such as displays and speakers based on PDSCH received by the communication module 2013 (or data / information decoded from that PDSCH). Furthermore, 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, gearshift lever 2006, front wheels 2007, rear wheels 2008, axles 2009, sensors 2021-2029, etc., of the vehicle 2001 based on the information stored in the memory 2032.

[0147] (Summary of implementation methods)

[0148] As described above, according to an embodiment of the present invention, a terminal is provided, comprising: a control unit that determines at least one of intra-symbol OCC and inter-symbol OCC applied to a PUSCH modulated by DFT-s-OFDM or OFDM, wherein DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, PUSCH refers to Physical Uplink Shared Channel, and OCC refers to Orthogonal Cover Code; and a transmission unit that transmits the PUSCH with the applied OCC to a base station, wherein the control unit multiplexes UCI before performing the spread for OCC application, wherein UCI refers to Uplink Control Information.

[0149] Based on the above structure, applying OCC in PUSCH transmission can increase the UL capacity and throughput of the system. That is, in a wireless communication system, it can increase the uplink capacity.

[0150] Alternatively, when applying OCC within the symbol of frequency domain extension, the control unit multiplexes the UCI to the initial RB, the initial set of RBs, or the subcarrier set, where RB stands for Resource Block. Based on this structure, applying OCC in PUSCH transmission can increase the UL capacity and improve throughput in the system.

[0151] Alternatively, the control unit can divide the number of subcarriers before expansion by a number between 1 and the maximum OCC length to determine the number of subcarriers after expansion. According to this structure, applying OCC in PUSCH transmission can increase the UL capacity and improve throughput in the system.

[0152] Alternatively, the control unit can multiplex the UCI to the initial symbol set when applying inter-symbol OCC in time-domain extended mode. According to this structure, applying OCC in PUSCH transmission can increase the UL capacity and improve throughput in the system.

[0153] Alternatively, the control unit may configure the UCI on the symbols following the first DMRS symbol in each of the extended sets, where DMRS refers to the Demodulation Reference Signal. Based on this structure, applying OCC in PUSCH transmission can increase the UL capacity and improve throughput in the system.

[0154] Furthermore, according to an embodiment of the present invention, a communication method is provided, wherein a terminal performs the following steps: determining at least one of an intra-symbol OCC and an inter-symbol OCC applied to a PUSCH modulated by DFT-s-OFDM or OFDM, wherein DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, PUSCH refers to Physical Uplink Shared Channel, and OCC refers to Orthogonal Cover Code; transmitting the PUSCH with the applied OCC to a base station; and multiplexing UCI before performing the spread for OCC application, wherein UCI refers to Uplink Control Information.

[0155] Based on the above structure, applying OCC in PUSCH transmission can increase the UL capacity and throughput of the system. That is, in a wireless communication system, it can increase the uplink capacity.

[0156] (Supplement to the implementation method)

[0157] The embodiments of the present invention have been described above, but the disclosed invention is not limited to such embodiments. Those skilled in the art should understand various modifications, alterations, substitutions, and replacements. Specific numerical examples have been used to facilitate understanding of the invention, but unless otherwise specified, these values ​​are merely examples, and any appropriate values ​​may be used. The distinctions between items in the above description are not essential to the present invention. Items described in two or more items may be combined as needed, and items described in one item may be applied to items described in another item (as long as there is no contradiction). The boundaries of functional units or processing units in the functional block diagram do not necessarily correspond to the boundaries of physical components. Multiple functional units may be operated by a single physical component, or a single functional unit may be operated by multiple physical components. Regarding the processing described in the embodiments, the order of processing may be interchanged unless there is a contradiction. For ease of explanation, a functional block diagram is used to illustrate the base station 10 and terminal 20, but such a device may also be implemented by hardware, software, or a combination thereof. The software operating according to the embodiments of the present invention via the processor of the base station 10 and the software operating according to the embodiments of the present invention via the processor of the terminal 20 may also be stored in random access memory (RAM), flash memory, read-only memory (ROM), EPROM, EEPROM, register, hard disk (HDD), removable disk, CD-ROM, database, server and other suitable storage media, respectively.

[0158] 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., DCI (Downlink Control Information), UCI (Uplink Control Information)), higher layer signaling (e.g., RRC (Radio Resource Control) signaling, MAC (Medium Access Control) signaling), broadcast information (MIB (Master Information Block), SIB (System Information Block)), other signals, or combinations thereof. Additionally, RRC signaling may be referred to as an RRC message, for example, it may also be an RRC Connection Setup message, an RRC Connection Reconfiguration message, etc.

[0159] 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, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), FRA (Future Radio Access), NR (new Radio), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, UWB (Ultra-Wideband), Bluetooth (registered trademark), other suitable systems, and next-generation systems extended therefrom. Furthermore, multiple systems can be combined (e.g., a combination of at least one of LTE and LTE-A with 5G, etc.) for application.

[0160] The processing procedures, timing, and flow of the various forms / implementations described in this specification may be rearranged in order, provided there is no contradiction. For example, the elements of various steps are indicated using an illustrative order for the methods described in this disclosure, but are not limited to the specific order indicated.

[0161] In this specification, certain actions performed by base station 10 may sometimes also be performed by its upper node, depending on the circumstances. In a network consisting of one or more network nodes having base station 10, it is obvious that various actions performed to communicate with terminal 20 can be performed by at least one of base station 10 and other network nodes besides base station 10 (e.g., considering MME or S-GW, but not limited to these). The above example illustrates the case where there is one other network node besides base station 10, but other network nodes can also be a combination of multiple other network nodes (e.g., MME and S-GW).

[0162] The information or signals described in this disclosure can be output from a higher (or lower) layer to a lower (or higher) layer. They can also be input or output via multiple network nodes.

[0163] 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.

[0164] The determination in this disclosure can be made by a value represented by 1 bit (0 or 1), by a Boolean value (Boolean: true or false), or by a comparison of numerical values ​​(e.g., a comparison with a predetermined value).

[0165] 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.

[0166] In addition, software, commands, and information can also be sent and received via transmission media. 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 transmission media.

[0167] The information, signals, etc., described in this disclosure can also be represented using any of a variety of different technologies. For example, the data, commands, instructions, information, signals, bits, symbols, chips, etc., that may be involved in the above description as a whole can be represented by voltage, current, electromagnetic waves, magnetic fields or magnetic particles, light fields or photons, or any combination of these.

[0168] 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.

[0169] The terms “system” and “network” as used in this disclosure are used interchangeably.

[0170] Furthermore, the information, parameters, etc., described in this disclosure may be represented using absolute values, relative values ​​to predetermined values, or other corresponding information. For example, wireless resources may be indicated using indexes.

[0171] 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.

[0172] In this disclosure, the terms "base station (BS)," "wireless base station," "base station device," "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.

[0173] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, its coverage area can be divided into several smaller areas, each of which can provide communication services through a base station subsystem (e.g., a small indoor base station RRH: Remote Radio Head). 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.

[0174] 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.

[0175] In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," and "terminal" can be used interchangeably.

[0176] 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.

[0177] At least one of the base station and mobile station can also be referred to as a transmitting device, receiving device, communication device, etc. Additionally, at least one of the base station and mobile station can also be a device mounted on a mobile body, the mobile body itself, etc. The mobile body refers to an object capable of movement, with arbitrary speed. This also includes situations where the mobile body is stationary. Examples of mobile bodies include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, two-wheeled trailers, rickshaws, ships (ships and other watercraft), airplanes, rockets, artificial satellites, Drone (registered trademark), multi-rotor helicopters, quadcopter helicopters, balloons, and objects mounted on them. Furthermore, the mobile body can also be a mobile body that moves autonomously based on operating commands. It can be a means of transportation (e.g., automobiles, airplanes, etc.), a mobile body moving in an unmanned manner (e.g., drones, autonomous vehicles, etc.), or a robot (humanized or unmanned). Additionally, at least one of the base station and mobile station also includes devices that do not necessarily move during communication operations. For example, at least one of the base station and the mobile station can be an IoT (Internet of Things) device such as a sensor.

[0178] Furthermore, the base station in this disclosure can also be replaced by a user terminal. For example, the communication between the base station and the user terminal can be replaced by communication between multiple terminals 20 (e.g., D2D (Device-to-Device), V2X (Vehicle-to-Everything), etc.), and various forms / implementations of this disclosure can also be applied. In this case, the terminal 20 can also be configured to have the functions of the base station 10 described above. In addition, terms such as "uplink" and "downlink" can be replaced with terms corresponding to inter-terminal communication (e.g., "side"). For example, uplink channel, downlink channel, etc., can also be replaced with side channel.

[0179] Similarly, the user terminal 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 the aforementioned user terminal.

[0180] The terms "determining" and "determining" as used in this disclosure sometimes encompass a variety of actions. For example, "determining" or "determining" may include actions such as judging, calculating, computing, processing, deriving, investigating, searching (e.g., searching in a table, database, or other data structure), and ascertaining, 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.

[0181] 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.

[0182] The reference signal can be simply called RS (Reference Signal), or, depending on the standard applied, pilot.

[0183] 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".

[0184] Any reference to elements using the designations "first," "second," etc., as used in this disclosure does not necessarily limit the number or order of these elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Therefore, references to the first and second elements do not imply that only two elements can be taken, or that in any form the first element must precede the second element.

[0185] Alternatively, the "unit" in the structure of the above devices can be replaced with "section", "circuit", "equipment", etc.

[0186] 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.

[0187] 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 also be a fixed time length (e.g., 1 ms) independent of the parameter set (numerology).

[0188] 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.

[0189] 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.

[0190] A time slot can contain multiple mini-time slots. Each mini-time slot can consist of one or more symbols in the time domain. Furthermore, a mini-time slot can also be called a sub-time slot. A mini-time slot can consist of fewer symbols than a time slot. PDSCH (or PUSCH) transmitted in time units larger than mini-time slots can be called PDSCH (or PUSCH) mapping type (type) A. PDSCH (or PUSCH) transmitted using mini-time slots can be called PDSCH (or PUSCH) mapping type (type) B.

[0191] 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.

[0192] For example, a subframe can be called a Transmission Time Interval (TTI), multiple consecutive subframes can also be called a TTI, and a time slot or a mini-time slot can also be called a TTI. That is, at least one of a subframe and a TTI can be a subframe (1ms) in existing LTE, a period shorter than 1ms (e.g., 1-13 symbols), or a period longer than 1ms. In addition, the unit representing TTI may not be called a subframe, but a time slot, mini-time slot, etc.

[0193] 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 20) in units of TTI. However, the definition of TTI is not limited to this.

[0194] The Time Interval (TTI) can be a unit of time for transmitting channel-coded data packets (transmission blocks), code blocks, codewords, etc., or it can be a processing unit such as scheduling or link adaptation. Furthermore, when a TTI is given, the actual time interval (e.g., the number of symbols) that the transmission block, code block, codeword, etc., are mapped to can be shorter than the TTI.

[0195] Furthermore, when one time slot or one mini time slot is referred to as a TTI, more than one TTI (i.e., more than one time slot or more than one mini time slot) can become the minimum time unit for scheduling. In addition, the number of time slots (mini time slots) constituting the minimum time unit of the schedule can be controlled.

[0196] 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.

[0197] Additionally, a long TTI (e.g., a normal TTI, a subframe, etc.) can be replaced with a TTI with a duration of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) can be replaced with a TTI with a duration of less than a long TTI but more than 1 ms.

[0198] 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.

[0199] Furthermore, the temporal domain of an RB can contain one or more symbols, which can be a time slot, a mini-time slot, a subframe, or the length of a TTI. A TTI, a subframe, etc., can each be composed of one or more resource blocks.

[0200] 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.

[0201] 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.

[0202] The Bandwidth Part (BWP) (also known as partial bandwidth, etc.) can also represent a subset of contiguous common resource blocks (RBs) used for a certain parameter set in a certain 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.

[0203] 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.

[0204] At least one of the configured BWPs can be active, and the scenario of the UE transmitting or receiving predetermined signals / channels outside of the active BWP is not considered. Furthermore, the terms "cell," "carrier," etc., used in this disclosure can be replaced with "BWP."

[0205] 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, and the number of symbols in a TTI, symbol length, and cyclic prefix (CP) length can be varied in many ways.

[0206] 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 also includes cases where the noun following these articles is in a plural form.

[0207] In this disclosure, the phrase "A and B are different" can mean "A and B are not the same." Additionally, this phrase can also mean "A and B are each different from C." Terms such as "separate" and "combined" can also be interpreted in the same way as "different."

[0208] The various forms / implementations described in this disclosure can be used individually or in combination, and can be switched depending on the execution. Furthermore, the notification of predetermined information (e.g., a notification of "It is X") is not limited to being explicit, but can also be implicit (e.g., without notification of the predetermined information).

[0209] 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.

[0210] Label Explanation

[0211] 10: Base station

[0212] 110: Sending Department

[0213] 120: Receiving Department

[0214] 130: Setting Department

[0215] 140: Control Department

[0216] 20: Terminal

[0217] 210: Sending Department

[0218] 220: Receiving Department

[0219] 230: Setting Department

[0220] 240: Control Department

[0221] 1001: Processor

[0222] 1002: Storage device

[0223] 1003: Auxiliary storage device

[0224] 1004: Communication device

[0225] 1005: Input device

[0226] 1006: Output device

[0227] 2001: Vehicles

[0228] 2002: Drive Unit

[0229] 2003: Steering Unit

[0230] 2004: Accelerator Pedal

[0231] 2005: Brake Pedal

[0232] 2006: Gear Shift

[0233] 2007: Front Wheel

[0234] 2008: Rear Wheel

[0235] 2009: Axle

[0236] 2010: Electronic Control Department

[0237] 2012: Information Services Department

[0238] 2013: Communication Module

[0239] 2021: Current Sensor

[0240] 2022: Speed ​​Sensor

[0241] 2023: Barometric Pressure Sensor

[0242] 2024: Vehicle Speed ​​Sensor

[0243] 2025: Accelerometer

[0244] 2026: Brake Pedal Sensor

[0245] 2027: Gearshift Sensor

[0246] 2028: Object Detection Sensor

[0247] 2029: Accelerator Pedal Sensor

[0248] 2030: Driver Assistance Systems Department

[0249] 2031: Microprocessors

[0250] 2032: Memory (ROM, RAM)

[0251] 2033: Communication port (IO port)

Claims

1. A terminal having: The control unit determines at least one of the intra-symbol OCC (Optical Code Correction) and inter-symbol OCC (Optical Code Correction) applied to the PUSCH modulated by DFT-s-OFDM or OFDM, wherein... DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing; PUSCH refers to Physical Uplink Shared Channel; and OCC refers to Orthogonal Cover Code. The transmitting unit sends the PUSCH, which applies the OCC, to the base station. The control unit reuses UCI before executing extensions for OCC applications, where UCI stands for Uplink Control Information.

2. The terminal according to claim 1, wherein, When applying OCC within the symbol in the frequency domain extension, the control unit multiplexes the UCI to the initial RB, the initial set of RBs, or the set of subcarriers, where RB refers to Resource Block.

3. The terminal according to claim 2, wherein, The control unit determines the number of subcarriers after expansion by dividing the number of subcarriers before expansion by a number between 1 and the maximum length of the OCC.

4. The terminal according to claim 1, wherein, When applying inter-symbol OCC in time-domain extended form, the control unit multiplexes the UCI onto the initial symbol set.

5. The terminal according to claim 4, wherein, The control unit will also configure the UCI configured on the symbol after the first DMRS symbol in each of the extended sets, where DMRS refers to the demodulation reference signal.

6. A communication method in which a terminal performs the following steps: Determine at least one of the intra-symbol OCC in the frequency domain spread and the inter-symbol OCC in the time domain spread for PUSCH modulated by DFT-s-OFDM or OFDM, wherein, DFT-s-OFDM refers to Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing, PUSCH refers to Physical Uplink Shared Channel, and OCC refers to Orthogonal Cover Code. Send the PUSCH with the OCC applied to the base station; and UCI, which stands for Uplink Control Information, is reused before implementing extensions for OCC applications.

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