Terminal device, base station device and communication method

By introducing a new frequency domain resource allocation mechanism in cellular mobile communication system, using the frequency domain resource allocation field in DCI format to determine the set of virtual resource blocks and map them to physical resource blocks, the existing system is solved in communication The lack of flexibility and efficiency has achieved more efficient resource management and performance improvement.

CN114208097BActive Publication Date: 2025-01-10SHARP KK
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Patent Information

Application Number
CN202080055509.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2019-08-09
Filing Date
2020-08-07
Publication Date
2025-01-10
Estimated Expiration
2040-08-07

AI Technical Summary

Technical Problem

Existing cellular mobile communication systems have shortcomings in communication flexibility and efficiency, especially in multiple scenarios (enhanced mobile broadband, machine-type communication and ultra-reliable low-latency communication) that are difficult to meet complex needs.

Method used

By introducing a new frequency domain resource allocation mechanism in terminal devices and base station devices, the frequency domain resource allocation field in the DCI format is used to determine the set of virtual resource blocks, including continuous and interlaced virtual resource blocks, and map them to physics Resource blocks to achieve more flexible and efficient resource management.

Benefits of technology

It improves the flexibility and efficiency of the communication system, can better adapt to the needs of different scenarios, and improves the overall performance of the system.

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Abstract

The PUSCH is scheduled by the random access response grant included in the random access response. L interlaces are configured for active UL BWPs. L The first L An interleave includes a set of VRB resource blocks, where each resource block satisfies the relationship I L =mod(I VRB +N start,u BWP,i ,M L ), the N start,u BWP,i is the starting common resource block of the active UL BWP with index i, and the resource block allocation information in the random access response grant indicates the resource block from the M L one or more interlaces in the active UL BWP, when the active UL BWP is different from the initial UL BWP, the first resource block allocated to the PUSCH is a resource block in the one or more interlaces in the initial UL BWP, and when the active UL BWP is the initial UL BWP, the second resource block allocated to the PUSCH is the same as the first resource block.
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Description

Technical Field

[0001] The invention relates to terminal equipment, base station equipment and a communication method. Background Art

[0002] In the 3rd Generation Partnership Project (3GPP), a radio access method and a radio network (hereinafter referred to as Long Term Evolution or Evolved Universal Terrestrial Radio Access) for cellular mobile communications have been studied. In LTE (Long Term Evolution), a base station device is also referred to as an evolved Node B (eNodeB), and a terminal device is also referred to as a user equipment (UE). LTE is a cellular communication system in which multiple areas are deployed in a cellular structure, wherein each of the multiple areas is covered by a base station device. A single base station device can manage multiple cells. Evolved Universal Terrestrial Radio Access is also referred to as E-UTRA.

[0003] In 3GPP, the next generation standard (New Radio: NR) has been studied to propose to the International Mobile Telecommunications 2020 (IMT-2020), the standard for the next generation mobile communication system defined by the International Telecommunication Union (ITU). NR is expected to meet the requirements of three scenarios, namely enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and ultra-reliable and low latency communication (URLLC), in a single technology framework.

[0004] For example, a wireless communication device may communicate with one or more devices using a communication structure. However, the communication structure used may only provide limited flexibility and / or efficiency. As shown in this discussion, systems and methods for improving communication flexibility and / or efficiency may be advantageous. Summary of the invention

[0005] In one example, a terminal device includes: a receiving circuit configured to receive a physical downlink control channel PDCCH having a downlink control information DCI format, the DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and a transmitting circuit configured to transmit a physical uplink shared channel PUSCH scheduled by the DCI format; wherein, in a case where a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a continuous virtual resource set, and in a case where a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set including a set of interleavings, each of the interleavings including one or more virtual resource blocks, and in a case where the first type of frequency domain resource allocation is applied to the PUSCH, a virtual resource block with an index n in the first set is mapped to a virtual resource block with an index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, and in case the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to the physical resource block with the index n.

[0006] In one example, a base station device includes: a transmission circuit, the transmission circuit is configured to send a physical downlink control channel PDCCH having a downlink control information DCI format, the DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and a receiving circuit, the receiving circuit is configured to receive a physical uplink shared channel PUSCH scheduled by the DCI format; wherein, in a case where a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a continuous virtual resource set, and in a case where a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set including a set of interlaces, each of the interlaces including one or more virtual resource blocks, and in a case where the first type of frequency domain resource allocation is applied to the PUSCH, a virtual resource block with an index n in the first set is mapped to a virtual resource block with an index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, and in case the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to the physical resource block with the index n.

[0007] In one example, a communication method used by a terminal device, the communication method comprising the following steps: receiving a physical downlink control channel PDCCH having a downlink control information DCI format, the DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and transmitting a physical uplink shared channel PUSCH scheduled by the DCI format; wherein, in a case where a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a continuous virtual resource set, and in a case where a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set including a set of interlaces, each of the interlaces including one or more virtual resource blocks, and in a case where the first type of frequency domain resource allocation is applied to the PUSCH, a virtual resource block with an index n in the first set is mapped to a virtual resource block with an index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, and in case the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to the physical resource block with the index n. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a conceptual diagram of a wireless communication system according to aspects of an embodiment of the present disclosure;

[0009] Figure 2 is a diagram showing a subcarrier spacing configuration u, a number of OFDM symbols per time slot N according to aspects of the disclosed embodiments. 时隙 符号 Examples of relationships between and CP configurations;

[0010] Figure 3 is a diagram showing an example of a method of configuring a resource grid according to aspects of an embodiment of the present disclosure;

[0011] Figure 4 is a diagram showing an example of a configuration of a resource grid 3001 according to aspects of an embodiment of the present disclosure;

[0012] Figure 5is a schematic block diagram showing a configuration example of a base station device 3 according to aspects of an embodiment of the present disclosure;

[0013] Figure 6 is a schematic block diagram showing a configuration example of a terminal device 1 according to an aspect of an embodiment of the present disclosure;

[0014] Figure 7 is a diagram showing a configuration example of an SS / PBCH block according to aspects of an embodiment of the present disclosure;

[0015] Figure 8 is a diagram showing an example of a PRACH resource setting according to aspects of an embodiment of the present disclosure;

[0016] Fig. 9 According to aspects of the embodiments of the present disclosure, RO 前导码 =64, N SSB 前导码,CBRA =64, N SSB RO An example of the association between the index of the SS / PBCH block candidate and the PRACH opportunity (SS-RO association) when = 1 and the first bitmap is set to {1,1,0,1,0,1,1,0};

[0017] Fig.10 According to aspects of the embodiments of the present disclosure, RO 前导码 =64, N SSB 前导码,CBRA =64, N SSB RO An example of the association between the index of the SS / PBCH block candidate and the PRACH opportunity (SS-RO association) when = 1 and the first bitmap is set to {1,1,0,1,0,1,0,0};

[0018] Fig.11 is a diagram showing an example of monitoring opportunities for a search space set according to aspects of an embodiment of the present disclosure;

[0019] Fig.12 is a diagram showing an example of a counting process according to aspects of an embodiment of the present disclosure;

[0020] Fig.13 is an example of a frequency domain resource allocation process for resource allocation type 1 for PUSCH according to aspects of the embodiments of the present disclosure;

[0021] Fig.14 is an example of interleaving in a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure.

[0022] Fig.15 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure.

[0023] Fig.16 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure.

[0024] Fig.17 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure. DETAILED DESCRIPTION

[0025] Floor(AX) may be a floor function of a real number AX. For example, floor(AX) may be a function that provides a maximum integer within a range not exceeding the real number AX. Ceil(BX) may be a ceiling function of a real number BX. For example, ceil(BX) may be a function that provides a minimum integer within a range not less than the real number BX. Mod(CX,DX) may be a function that provides a remainder obtained by dividing CX by DX. Here, CX is a real number. In addition, DX is a real number. Mod(CX,DX) may be a function that provides a value corresponding to the remainder of dividing CX by DX. It is exp(EX)=e^(EX). Here, e is Napier's constant. In addition, EX is a complex number or a real number. (FX)^(GX) indicates that GX is a power of FX. Here, FX is a complex number or a real number.

[0026] In a wireless communication system according to aspects of the embodiments of the present disclosure, at least OFDM (Orthogonal Frequency Division Multiplexing) is used. OFDM symbol is the time domain unit of OFDM. OFDM symbol includes at least one or more subcarriers. OFDM symbol is converted into a time-continuous signal in baseband signal generation. In the downlink, at least CP-OFDM (Cyclic Prefix Orthogonal Frequency Division Multiplexing) is used. In the uplink, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing) is used. DFT-s-OFDM can be given by applying transform precoding to CP-OFDM. Transform precoding can be a kind of DFT (Discrete Fourier Transform). CP-OFDM is OFDM using CP (Cyclic Prefix). DFT-s-OFDM also uses CP.

[0027] The OFDM symbol may be a name including the CP added to the OFDM symbol before the CP is added. That is, the OFDM symbol may be configured to include the OFDM symbol and the CP added to the OFDM symbol before the CP is added.

[0028] Figure 1 is a conceptual diagram of a wireless communication system according to aspects of an embodiment of the present disclosure. Figure 1In the wireless communication system, at least terminal devices 1A to 1C and a base station device 3 (BS#3: base station #3) are included. Hereinafter, the terminal devices 1A to 1C are also referred to as terminal device 1 (UE#1: user equipment #1).

[0029] The base station device 3 may be configured to include one or more transmission devices (or transmission points, receiving devices, receiving points). When the base station device 3 is configured by multiple transmission devices, each of the multiple transmission devices may be arranged at a different position.

[0030] The base station device 3 may provide one or more service cells. A service cell may be defined as a group of resources used for wireless communication. A service cell is also referred to as a cell.

[0031] The serving cell may be configured to include at least one or both of a downlink component carrier (downlink carrier) and an uplink component carrier (uplink carrier). The serving cell may be configured to include at least two or more downlink component carriers and / or two or more uplink component carriers. The downlink component carrier and the uplink component carrier are also referred to as component carriers (carriers).

[0032] For example, a resource grid may be provided for a component carrier. For example, a resource grid may be provided for a combination of a component carrier and a subcarrier spacing configuration u. The subcarrier spacing configuration u is also referred to as a parameter or a subcarrier spacing. Resource grid N size,u grid,x N RB sc The resource grid starts with the index N start,u grid The public resource block with index N start,u grid The common resource block is also called the reference point of the resource grid. The resource grid includes N 子帧,u 符号 OFDM symbols. The subscript x indicates the transmission direction. The transmission direction can be downlink or uplink. A resource grid is provided for the combination of antenna port p, subcarrier spacing configuration u, and transmission direction x.

[0033] N is given based on at least a high-level parameter (for example, a high-level parameter called CarrierBandwidth). size,u grid,x and N start,u grid . The high-level parameters are used to define one or more SCS (subcarrier spacing) specific carriers. The resource grid corresponds to the SCS specific carrier. The component carrier may include one or more SCS specific carriers. The SCS specific carrier may be indicated by a system information block (SIB). For each SCS specific carrier, a subcarrier spacing configuration u may be provided.

[0034] Figure 2 is a diagram showing a subcarrier spacing configuration u, a number of OFDM symbols per time slot N according to aspects of the disclosed embodiments. 时隙 符号 An example of the relationship between and CP configuration. Figure 2 In A, for example, when the subcarrier spacing configuration u is set to 2 and the CP configuration is set to normal CP (normal cyclic prefix), N 时隙 符号 =14, N 帧,u 时隙 =40, N 子帧,u 时隙 =4. In addition, Figure 2 In B, for example, when the subcarrier spacing configuration u is set to 2 and the CP configuration is set to extended CP (extended cyclic prefix), N 时隙 符号 =12,N 帧,u 时隙 =40; N 子帧,u 时隙 =4.

[0035] In a wireless communication system according to an aspect of the embodiments of the present disclosure, the time unit T c Can be used to represent length in the time domain. Time unit T c T c =1 / (df max *N f ). It is df max =480kHz. It is N f =4096. The constant k is k=df max *N f / (df ref N f,ref )=64. df ref is 15kHz. f,ref is 2048.

[0036] Signal transmission in the downlink and / or uplink may be organized into a group of length T f The radio frame (system frame, frame) of T f =(df max N f / 100)*T s =10ms. A radio frame is configured to include ten subframes. The subframe length is T Sf =(df max N f / 1000)T s =1ms. The number of OFDM symbols per subframe is N 子帧,u 符号 =N时隙 符号 N 子帧,u 时隙 .

[0037] For subcarrier spacing configuration u, the number and index of time slots included in the subframe may be given. For example, time slot index n u s Can be given in ascending order in the subframe, with values ​​from 0 to N 子帧,u 时隙 An integer value in the range of -1. For subcarrier spacing configuration u, the number of slots included in the radio frame and the index of the slots included in the radio frame may be given. In addition, the slot index n u s,f Can be given in ascending order in a radio frame, with values ​​from 0 to N 帧,u 时隙 Integer value in the range -1. Continuous N 时隙 符号 OFDM symbols can be included in one time slot. 时隙 符号 =14.

[0038] Figure 3 is a diagram illustrating an example of a method of configuring a resource grid according to aspects of an embodiment of the present disclosure. Figure 3 The horizontal axis in indicates the frequency domain. Figure 3 is a configuration example of a resource grid with a subcarrier spacing configuration u=u1 in the component carrier 300, and a configuration example of a resource grid with a subcarrier spacing configuration u=u2 in the component carrier 300. One or more subcarrier spacing configurations u may be set for a component carrier. Figure 3 It is assumed that u1=u2-1, but various aspects of the embodiment are not limited to the condition u1=u2-1.

[0039] Point 3000 is an identifier for identifying a subcarrier. Point 3000 is also referred to as point A. Common resource block set (CRB set) 3100 is a set of common resource blocks for subcarrier spacing configuration u1.

[0040] In the common resource block set 3100, the point 3000 (composed of Figure 3 The common resource block of the common resource block set 3100 (indicated by the upper right slash in FIG. 1 ) is also referred to as a reference point of the common resource block set 3100. The reference point of the common resource block set 3100 may be a common resource block with an index of 0 in the common resource block set 3100.

[0041] Offset 3011 is an offset from the reference point of common resource block set 3100 to the reference point of resource grid 3001. Offset 3011 is indicated by the number of common resource blocks relative to subcarrier spacing configuration u1. Resource grid 3001 includes N starting from the reference point of resource grid 3001. size,u grid1,x A common resource block.

[0042] Offset 3013 is the reference point from the resource grid 3001 to the reference point of BWP (Bandwidth Part) 3003 indexed as i1 (N start,u BWP,i1 ) offset.

[0043] Common resource block set 3200 is a common resource block set for subcarrier spacing configuration u2.

[0044] The points 3000 in the common resource block set 3200 (consisting of Figure 3 The common resource block of the common resource block set 3200 (the block indicated by the upper left slash in FIG. 1 ) is also referred to as a reference point of the common resource block set 3200. The reference point of the common resource block set 3200 may be a common resource block with an index of 0 in the common resource block set 3200.

[0045] Offset 3012 is the offset from the reference point of common resource block set 3200 to the reference point of resource grid 3002 (the block indicated by the vertical line). Offset 3012 is indicated by the number of common resource blocks for subcarrier spacing configuration u=u2. Resource grid 3002 includes N blocks starting from the reference point of resource grid 3002. size,u grid2,x A common resource block.

[0046] Offset 3014 is the reference point from resource grid 3002 to the reference point of BWP 3004 with index i2 (N start ,u Bwp,i2 ) offset.

[0047] Figure 4 3001 is a diagram showing an example of a configuration of a resource grid 3001 according to aspects of an embodiment of the present disclosure. Figure 4 In the resource grid, the horizontal axis indicates the OFDM symbol index l sym , and the vertical axis indicates the subcarrier index k sc The resource grid 3001 includes N size,u grid1,x N RB sc subcarriers, and includes N 子帧,u 符号 OFDM symbols. The subcarrier index k in the resource grid sc and OFDM symbol index lsym The identified resource is also called a resource element (RE: Resource Element).

[0048] Resource blocks (RBs) include N RB sc A resource block is a generic name for a common resource block, a physical resource block (PRB) and a virtual resource block (VRB). RB sc =12.

[0049] A resource block unit is a group of resources corresponding to an OFDM symbol in a resource block, that is, a resource block unit includes 12 resource elements corresponding to an OFDM symbol in a resource block.

[0050] The common resource blocks for subcarrier spacing configuration u are indexed in the common resource block set in the frequency domain in ascending order starting from 0. The common resource block with index 0 for subcarrier spacing configuration u includes point 3000 (or collides with, matches with).

[0051] The physical resource blocks for subcarrier spacing configuration u are indexed in the BWP in the frequency domain in ascending order starting from 0. The index n of the physical resource block relative to the subcarrier spacing configuration u is u PRB Satisfy n u CRB =n u PRB +N start,u BWP,i Relationship. start ,u BWP,i Indicates the reference point of the BWP with index i.

[0052] The virtual resource blocks for subcarrier spacing configuration u are indexed in the BWP in the frequency domain starting from 0 in ascending order.

[0053] A BWP is defined as a subset of common resource blocks included in a resource grid. A BWP includes start ,u BWP,i Starting N size,u BWP,i The BWP of a downlink component carrier is also called a downlink BWP. The BWP of an uplink component carrier is also called an uplink BWP.

[0054] An antenna port is defined such that the channel on which a symbol on the antenna port is transmitted can be inferred from the channel on which another symbol on the same antenna port is transmitted. For example, a channel may correspond to a physical channel. For example, a symbol may correspond to an OFDM symbol. For example, a symbol may correspond to a resource block unit. For example, a symbol may correspond to a resource element.

[0055] If the large-scale properties of the channel for symbol transmission on one antenna port are inferred from the channel for symbol transmission on another antenna port, the two antenna ports are said to be QCL (quasi co-located). The large-scale properties include some or all of delay spread, Doppler spread, Doppler shift, average gain, average delay and / or spatial Rx parameters.

[0056] Carrier aggregation can be used to communicate using multiple aggregated serving cells. Carrier aggregation can be communication using multiple aggregated link component carriers. Carrier aggregation can be communication using multiple aggregated downlink component carriers. Carrier aggregation can be communication using multiple aggregated uplink component carriers.

[0057] Figure 5 1 is a schematic block diagram showing a configuration example of a base station device 3 according to aspects of an embodiment of the present disclosure. Figure 5 As shown, the base station device 3 includes at least part or all of a wireless transmission / reception unit (physical layer processing unit) 30 and a high-level processing unit 34. The wireless transmission / reception unit 30 includes at least part or all of an antenna unit 31, an RF unit 32 (radio frequency unit 32), and a baseband unit 33. The high-level processing unit 34 includes at least part or all of a medium access control layer processing unit 35 and a radio resource control layer processing unit 36.

[0058] The wireless transmission / reception unit 30 includes at least part or all of a wireless transmission unit 30a and a wireless reception unit 30b. The configuration of the baseband unit 33 included in the wireless transmission unit 30a and the configuration of the baseband unit 33 included in the wireless reception unit 30b may be the same or different. The configuration of the RF unit 32 included in the wireless transmission unit 30a and the configuration of the RF unit 32 included in the wireless reception unit 30b may be the same or different. The configuration of the antenna unit 31 included in the wireless transmission unit 30a and the configuration of the antenna unit 31 included in the wireless reception unit 30b may be the same or different.

[0059] The high-level processing unit 34 provides downlink data (transmission blocks) to the wireless transmission / reception unit 30 (or the wireless transmission unit 30a). The high-level processing unit 34 performs part or all of the processing in the medium access control layer (MAC layer), the packet data convergence protocol layer (PDCP layer), the radio link control layer (RLC layer) and / or the radio resource control layer (RRC layer).

[0060] The medium access control layer processing unit 35 included in the higher layer processing unit 34 performs processing of the MAC layer.

[0061] The radio resource control layer processing unit 36 ​​included in the high-layer processing unit 34 performs processing of the RRC layer. The radio resource control layer processing unit 36 ​​manages various configuration information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 36 ​​can configure the RRC parameters based on the RRC message received from the terminal device 1.

[0062] The wireless transmission / reception unit 30 (or the wireless transmission unit 30a) performs processing such as encoding and modulation. The wireless transmission / reception unit 30 (or the wireless transmission unit 30a) generates a physical signal by encoding and modulating the downlink data. The wireless transmission / reception unit 30 (or the wireless transmission unit 30a) generates a time-continuous signal of the physical signal by IFFT (Inverse Fast Fourier Transform) of the OFDM symbols in the physical signal. The time-continuous signal is also called a baseband signal. The wireless transmission / reception unit 30 (or the wireless transmission unit 30a) transmits the time-continuous signal to the terminal device 1 via radio frequency. The wireless transmission / reception unit 30 (or the wireless transmission unit 30a) can arrange the time-continuous signal on the component carrier and transmit the time-continuous signal to the terminal device 1.

[0063] For example, the baseband unit 33 generates a physical signal by encoding and modulating the downlink data. Then, the baseband unit 33 generates a time-continuous signal of the physical signal by IFFT of the OFDM symbol in the physical signal. Then, the RF unit 32 transmits the time-continuous signal to the terminal device 1 via radio frequency by using the antenna unit 31.

[0064] The wireless transmission / reception unit 30 (or the wireless reception unit 30b) may perform a channel access procedure prior to transmission of a time-continuous signal of a physical signal.

[0065] The wireless transmission / reception unit 30 (or wireless reception unit 30b) performs processing such as demodulation and decoding. The wireless transmission / reception unit 30 (or wireless reception unit 30b) receives a time-continuous signal of a physical signal from the terminal device 1 via radio frequency. The wireless transmission / reception unit 30 (or wireless reception unit 30b) extracts the frequency domain component of the physical signal by fast Fourier transform (FFT) of the time-continuous signal. The frequency domain component of the physical signal is also referred to as the OFDM symbol of the physical signal. The wireless transmission / reception unit 30 (or wireless reception unit 30b) extracts uplink data by demodulating and decoding the physical signal.

[0066] At least one or more serving cells (or one or more component carriers, one or more downlink component carriers, one or more uplink component carriers) may be configured for the terminal device 1 .

[0067] Each serving cell in the serving cell group for the terminal device 1 may be any one of a PCell (primary cell), a PSCell (primary SCG cell), and a SCell (secondary cell).

[0068] The PCell is a serving cell included in the MCG (Master Cell Group). The PCell is a cell (implementation cell) in which the terminal device 1 performs an initial connection establishment procedure or a connection reestablishment procedure.

[0069] The PSCell is a serving cell included in an SCG (Secondary Cell Group). The PSCell is a serving cell to which the terminal device 1 performs random access in a reconfiguration procedure with synchronization (Reconfiguration with Synchronization).

[0070] SCell can be included in either MCG or SCG.

[0071] A serving cell group (cell group) is a name including at least MCG and SCG. A serving cell group may include one or more serving cells (or one or more component carriers). One or more serving cells (or one or more component carriers) included in a serving cell group may be operated through carrier aggregation.

[0072] One or more downlink BWPs may be configured for each serving cell (or each downlink component carrier).One or more uplink BWPs may be configured for each serving cell (or each uplink component carrier).

[0073] In one or more downlink BWP sets for a serving cell (or downlink component carrier), one downlink BWP may be set as an active downlink BWP (or one downlink BWP may be activated). In one or more uplink BWP sets for a serving cell (or uplink component carrier), one uplink BWP may be set as an active uplink BWP (or one uplink BWP may be activated).

[0074] The PDSCH, PDCCH and CSI-RS may be received in the active downlink BWP. The terminal device 1 may receive the PDSCH, PDCCH and CSI-RS in the active downlink BWP. The PUCCH and PUSCH may be sent on the active uplink BWP. The terminal device 1 may transmit the PUCCH and PUSCH in the active uplink BWP. The active downlink BWP and the active uplink BWP are also referred to as active BWPs.

[0075] PDSCH, PDCCH and CSI-RS may not be received in a downlink BWP (inactive downlink BWP) other than the active downlink BWP. Terminal device 1 may not receive PDSCH, PDCCH and CSI-RS in a downlink BWP other than the active downlink BWP. It is not necessary to transmit PUCCH and PUSCH in an uplink BWP (inactive uplink BWP) other than the active uplink BWP. Terminal device 1 may not transmit PUCCH and PUSCH in an uplink BWP other than the active uplink BWP. Inactive downlink BWP and inactive uplink BWP are also referred to as inactive BWP.

[0076] Downlink BWP switching deactivates an active downlink BWP and activates one of the inactive downlink BWPs other than the active downlink BWP. Downlink BWP switching may be controlled by a BWP field included in downlink control information. Downlink BWP switching may be controlled based on higher layer parameters.

[0077] Uplink BWP switching is used to deactivate an active uplink BWP and activate any inactive uplink BWP except the active uplink BWP. Uplink BWP switching may be controlled by a BWP field included in the downlink control information. Uplink BWP switching may be controlled based on higher layer parameters.

[0078] In the one or more downlink BWP sets for the serving cell, two or more downlink BWPs may not be set as active downlink BWPs.For the serving cell, one downlink BWP may be active at a specific time.

[0079] In the one or more uplink BWP sets for the serving cell, two or more uplink BWPs may not be set as active uplink BWPs.For the serving cell, one uplink BWP may be active at a specific time.

[0080] Figure 6 1 is a schematic block diagram showing a configuration example of a terminal device 1 according to an aspect of an embodiment of the present disclosure. Figure 6 As shown, the terminal device 1 includes at least part or all of a wireless transmission / reception unit (physical layer processing unit) 10 and a high-level processing unit 14. The wireless transmission / reception unit 10 includes at least part or all of an antenna unit 11, an RF unit 12, and a baseband unit 13. The high-level processing unit 14 includes at least part or all of a medium access control layer processing unit 15 and a radio resource control layer processing unit 16.

[0081] The wireless transmission / reception unit 10 includes at least part or all of a wireless transmission unit 10a and a wireless reception unit 10b. The configuration of the baseband unit 13 included in the wireless transmission unit 10a and the configuration of the baseband unit 13 included in the wireless reception unit 10b may be the same or different. The configuration of the RF unit 12 included in the wireless transmission unit 10a and the configuration of the RF unit 12 included in the wireless reception unit 10b may be the same or different. The configuration of the antenna unit 11 included in the wireless transmission unit 10a and the configuration of the antenna unit 11 included in the wireless reception unit 10b may be the same or different.

[0082] The high-layer processing unit 14 provides uplink data (transport block) to the wireless transmission / reception unit 10 (or wireless transmission unit 10a). The high-layer processing unit 14 performs processing of the MAC layer, the packet data integration protocol layer, the radio link control layer and / or the RRC layer.

[0083] The medium access control layer processing unit 15 included in the higher layer processing unit 14 performs processing of the MAC layer.

[0084] The radio resource control layer processing unit 16 included in the higher layer processing unit 14 performs processing of the RRC layer. The radio resource control layer processing unit 16 manages various configuration information / parameters (RRC parameters) of the terminal device 1. The radio resource control layer processing unit 16 configures the RRC parameters based on the RRC message received from the base station device 3.

[0085] The wireless transmission / reception unit 10 (or the wireless transmission unit 10a) performs processing such as encoding and modulation. The wireless transmission / reception unit 10 (or the wireless transmission unit 10a) generates a physical signal by encoding and modulating the uplink data. The wireless transmission / reception unit 10 (or the wireless transmission unit 10a) generates a time-continuous signal of the physical signal by IFFT (Inverse Fast Fourier Transform) of the OFDM symbol in the physical signal. The time-continuous signal is also called a baseband signal. The wireless transmission / reception unit 10 (or the wireless transmission unit 10a) transmits the time-continuous signal to the base station device 3 via radio frequency. The wireless transmission / reception unit 10 (or the wireless transmission unit 10a) can arrange the time-continuous signal on the BWP (active uplink BWP) and transmit the time-continuous signal to the base station device 3.

[0086] For example, the baseband unit 13 generates a physical signal by encoding and modulating the downlink data. Then, the baseband unit 13 generates a time-continuous signal of the physical signal by IFFT of the OFDM symbol in the physical signal. Then, the RF unit 12 transmits the time-continuous signal to the base station device 3 via radio frequency by using the antenna unit 11.

[0087] The WTRU 10 (or WTRU 10b) may perform a channel access procedure prior to transmission of a time-continuous signal of a physical signal.

[0088] The wireless transmission / reception unit 10 (or wireless transmission unit 10b) performs processing such as demodulation and decoding. The wireless transmission / reception unit 10 (or wireless transmission unit 10b) receives a time-continuous signal of a physical signal from the base station device 3 via radio frequency. The wireless transmission / reception unit 10 (or wireless transmission unit 10b) extracts the frequency domain component of the physical signal by fast Fourier transform (FFT) of the time-continuous signal. The frequency domain component of the physical signal is also called the OFDM symbol of the physical signal. The wireless transmission / reception unit 10 (or wireless transmission unit 10b) extracts uplink data by demodulating and decoding the physical signal.

[0089] Hereinafter, a physical signal (signal) will be described.

[0090] Physical signal is a general term for downlink physical channel, downlink physical signal, uplink physical channel and uplink physical channel. Physical channel is a general term for downlink physical channel and uplink physical channel.

[0091] An uplink physical channel may correspond to a group of resource elements that carry information and / or uplink control information originating from a higher layer. An uplink physical channel may be a physical channel used in an uplink component carrier. An uplink physical channel may be transmitted by a terminal device 1. An uplink physical channel may be received by a base station device 3. In a wireless communication system according to an aspect of an embodiment of the present disclosure, at least part or all of PUCCH (Physical Uplink Control Channel), PUSCH (Physical Uplink Shared Channel) and PRACH (Physical Random Access Channel) may be used.

[0092] PUCCH can be used to transmit uplink control information (UCI: uplink control information). PUCCH can be sent to deliver (transmit, transmit) uplink control information. Uplink control information can be mapped to PUCCH (or arranged in PUCCH). Terminal device 1 can transmit PUCCH in which uplink control information is arranged. Base station device 3 can receive PUCCH in which uplink control information is arranged.

[0093] The uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) includes at least part or all of channel state information (CSI: Channel State Information), scheduling request (SR: Scheduling Request) and HARQ-ACK (Hybrid Automatic Repeat Request Acknowledgement).

[0094] The channel state information is transmitted by using a channel state information bit or a channel state information sequence. The scheduling request is also called a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also called a HARQ-ACK information bit or a HARQ-ACK information sequence.

[0095] The HARQ-ACK information may include a HARQ-ACK state corresponding to a transport block (TB: transport block, MAC PDU: medium access control protocol data unit, DL-SCH: downlink channel, UL-SCH: uplink channel, PDSCH: physical downlink shared channel, PUSCH: physical uplink shared channel). The HARQ-ACK state may indicate an ACK (acknowledgement) or NACK (negative acknowledgement) corresponding to the transport block. ACK may indicate that the transport block has been successfully decoded. NACK may indicate that the transport block has not been successfully decoded. The HARQ-ACK information may include a HARQ-ACK codebook, which includes one or more HARQ-ACK states (or HARQ-ACK bits).

[0096] For example, the correspondence between the HARQ-ACK information and the transport block may mean that the HARQ-ACK information corresponds to the PDSCH used for transmission of the transport block.

[0097] The HARQ-ACK status may indicate ACK or NACK corresponding to one CBG (Code Block Group) included in a transport block.

[0098] The scheduling request may be used at least to request PUSCH (or UL-SCH) resources for new transmissions. The scheduling request may be used to indicate a positive SR or a negative SR. The fact that the scheduling request indicates a positive SR is also referred to as "sending a positive SR". A positive SR may indicate that the terminal device 1 is requesting PUSCH (or UL-SCH) resources for initial transmission. A positive SR may indicate that the higher layer will trigger a scheduling request. A positive SR may be sent when the higher layer commands the sending of a scheduling request. The fact that the scheduling request bit indicates a negative SR is also referred to as "sending a negative SR". A negative SR may indicate that the terminal device 1 is not requesting PUSCH (or UL-SCH) resources for initial transmission. A negative SR may indicate that the higher layer did not trigger a scheduling request. A negative SR may be sent if the higher layer does not command the sending of a scheduling request.

[0099] The channel state information may include at least part or all of a channel quality indicator (CQI), a precoder matrix indicator (PMI), and a rank indicator (RI). CQI is an indicator related to channel quality (e.g., propagation quality) or physical channel quality, and PMI is an indicator related to a precoder. RI is an indicator related to a transmission level (or the number of transmission layers).

[0100] The channel state information may be provided based at least on the reception of one or more physical signals (e.g., one or more CSI-RS) at least for channel measurement. The terminal device 1 may select the channel state information based at least on the reception of one or more physical signals for channel measurement. The channel measurement may include interference measurement.

[0101] The PUCCH may correspond to a PUCCH format. The PUCCH may be a set of resource elements used to transmit the PUCCH format. The PUCCH may include a PUCCH format. The PUCCH format may include UCI.

[0102] PUSCH can be used to transmit uplink data (transport blocks) and / or uplink control information. PUSCH can be used to transmit uplink data (transport blocks) and / or uplink control information corresponding to UL-SCH. PUSCH can be used to transmit uplink data (transport blocks) and / or uplink control information. PUSCH can be used to transmit uplink data (transport blocks) and / or uplink control information corresponding to UL-SCH. Uplink data (transport blocks) may be arranged in PUSCH. Uplink data (transport blocks) corresponding to UL-SCH may be arranged in PUSCH. Uplink control information may be arranged to PUSCH. Terminal device 1 may transmit PUSCH in which uplink data (transport blocks) and / or uplink control information are arranged. Base station device 3 may receive PUSCH in which uplink data (transport blocks) and / or uplink control information are arranged.

[0103] PRACH can be used to transmit random access preamble. PRACH can be used to transmit random access preamble. PRACH sequence X u,v (n) by x u,v (n) = x u (mod(n+C v ,L RA ))Definition. u It can be a ZC sequence (Zadoff-Chu sequence). u Can be obtained by x u =exp(-jpui(i+1) / L RA ) definition. j is an imaginary unit. p is the circulation ratio. C v Corresponds to the cyclic shift of PRACH. RA Corresponds to the length of PRACH. RA It can be 839 or 139 or another value. I is between 0 and L RA An integer in the range of -1. U is a sequence index of PRACH. Terminal device 1 can transmit PRACH. Base station device 3 can receive PRACH.

[0104] For a given PRACH opportunity, 64 random access preambles are defined. At least based on the cyclic shift C of the PRACH v and the PRACH sequence index u to specify (determine, give) the random access preamble code.

[0105] An uplink physical signal may correspond to a group of resource elements. An uplink physical signal may not carry information generated in a higher layer. An uplink physical signal may be a physical signal used in an uplink component carrier. Terminal device 1 may transmit an uplink physical signal. Base station device 3 may receive an uplink physical signal. In a radio communication system according to an aspect of an embodiment of the present disclosure, at least part or all of UL DMRS (uplink demodulation reference signal), SRS (sounding reference signal), and UL PTRS (uplink phase tracking reference signal) may be used.

[0106] UL DMRS is a common name for DMRS for PUSCH and DMRS for PUCCH.

[0107] A set of antenna ports for DMRS for PUSCH (DMRS associated with PUSCH, DMRS included in PUSCH, DMRS corresponding to PUSCH) may be given based on a set of antenna ports for PUSCH. That is, a set of DMRS antenna ports for PUSCH may be the same as a set of antenna ports for PUSCH.

[0108] The transmission of the PUSCH and the transmission of the DMRS for the PUSCH may be indicated (or scheduled) by one DCI format. The PUSCH and the DMRS for the PUSCH may be collectively referred to as the PUSCH. The transmission of the PUSCH may be the transmission of the PUSCH and the DMRS for the PUSCH.

[0109] The PUSCH can be estimated from the DMRS used for the PUSCH. That is, the propagation path of the PUSCH can be estimated from the DMRS used for the PUSCH.

[0110] A set of antenna ports for a DMRS of a PUCCH (DMRS associated with a PUCCH, DMRS included in a PUCCH, DMRS corresponding to a PUCCH) may be the same as a set of antenna ports of the PUCCH.

[0111] The transmission of PUCCH and the transmission of DMRS for PUCCH may be indicated (or triggered) by a DCI format. The arrangement of PUCCH in resource elements (resource element mapping) and / or the arrangement of DMRS for PUCCH in resource elements may be provided by at least one PUCCH format. PUCCH and DMRS for PUCCH may be collectively referred to as PUCCH. The transmission of PUCCH may be the transmission of PUCCH and DMRS for PUCCH.

[0112] The PUCCH can be estimated from the DMRS used for the PUCCH. That is, the propagation path of the PUCCH can be estimated from the DMRS used for the PUCCH.

[0113] A downlink physical channel may correspond to a group of resource elements that carry information from a higher layer and / or downlink control information. A downlink physical channel may be a physical channel used in a downlink component carrier. The base station device 3 may transmit a downlink physical channel. The terminal device 1 may receive a downlink physical channel. In a wireless communication system according to aspects of an embodiment of the present disclosure, at least part or all of the PBCH (Physical Broadcast Channel), the PDCCH (Physical Downlink Control Channel), and the PDSCH (Physical Downlink Shared Channel) may be used.

[0114] PBCH can be used to transmit MIB (Master Information Block) and / or physical layer control information. Physical layer control information is a type of downlink control information. PBCH can be sent to deliver MIB and / or physical layer control information. BCH can be mapped (or corresponded) to PBCH. Terminal device 1 can receive PBCH. Base station device 3 can transmit PBCH. Physical layer control information is also called PBCH payload and timing-related PBCH payload. MIB may include one or more high-level parameters.

[0115] The physical layer control information includes 8 bits. The physical layer control information may include at least part or all of 0A to 0D. 0A is radio frame information. 0B is half radio frame information (half system frame information). 0C is SS / PBCH block index information. 0D is subcarrier offset information.

[0116] The radio frame information is used to indicate the radio frame in which the PBCH is transmitted (including the radio frame of the time slot in which the PBCH is transmitted). The radio frame information is represented by 4 bits. The radio frame information may be represented by 4 bits of a radio frame indicator. The radio frame indicator may include 10 bits. For example, the radio frame indicator may be used to identify at least radio frames from index 0 to index 1023.

[0117] The half radio frame information is used to indicate whether the PBCH is transmitted in the first five subframes or in the last five subframes in the radio frame in which the PBCH is transmitted. Here, the half radio frame may be configured to include five subframes. The half radio frame may be configured by the first half of the five subframes in the ten subframes included in the radio frame. The half radio frame may be configured by the last half of the five subframes in the ten subframes included in the radio frame.

[0118] The SS / PBCH block index information is used to indicate the SS / PBCH block index. The SS / PBCH block index information may be represented by 3 bits. The SS / PBCH block index information may be composed of 3 bits of the SS / PBCH block index indicator. The SS / PBCH block index indicator may include 6 bits. The SS / PBCH block index indicator may be used to identify at least SS / PBCH blocks from index 0 to index 63 (or from index 0 to index 3, from index 0 to index 7, from index 0 to index 9, from index 0 to index 19, etc.).

[0119] The subcarrier offset information is used to indicate the subcarrier offset. The subcarrier offset information may be used to indicate the difference between the first subcarrier in which the PBCH is arranged and the first subcarrier in which the control resource set with index 0 is arranged.

[0120] PDCCH can be used to transmit downlink control information (DCI). PDCCH can be transmitted to deliver downlink control information. Downlink control information can be mapped to PDCCH. Terminal device 1 can receive PDCCH in which downlink control information is arranged. Base station device 3 can transmit PDCCH in which downlink control information is arranged.

[0121] The downlink control information may correspond to a DCI format. The downlink control information may be included in the DCI format. The downlink control information may be arranged in each field of the DCI format.

[0122] DCI format is a generic name for DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1. Uplink DCI format is a generic name for DCI format 0_0 and DCI format 0_1. Downlink DCI format is a generic name for DCI format 1_0 and DCI format 1_1.

[0123] DCI format 0_0 is used at least for scheduling the PUSCH of a cell (or the PUSCH arranged on the cell). DCI format 0_0 includes at least part or all of fields 1A to 1E. 1A is a DCI format identification field (an identifier field of a DCI format). 1B is a frequency domain resource allocation field (FDRA field). 1C is a time domain resource allocation field (TDRA field). 1D is a frequency hopping flag field. 1E is an MCS field (modulation and coding scheme field).

[0124] The DCI format identification field may indicate whether the DCI format including the DCI format identification field is an uplink DCI format or a downlink DCI format. The DCI format identification field included in DCI format 0_0 may indicate 0 (or may indicate that DCI format 0_0 is an uplink DCI format).

[0125] The frequency domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation (assignment) of frequency resources for PUSCH. The frequency domain resource allocation field included in DCI format 0_0 may be used at least to indicate the allocation (assignment) of frequency resources for PUSCH scheduled by DCI format 0_0.

[0126] The frequency domain resource allocation field in any DCI format includes frequency domain resource allocation information. The frequency domain resource allocation information may indicate the type of resource allocation, and the type may include at least part or both of resource allocation type 0 and resource allocation type 1. If the frequency domain resource allocation information indicates the type of resource allocation, the frequency domain resource allocation information includes resource allocation type information and resource block allocation information. The resource allocation type information indicates the type of resource allocation. The resource block allocation information indicates a set of resource blocks in the frequency domain for a physical channel scheduled by any DCI format.

[0127] The time domain resource allocation field included in the DCI format 0_0 may be used at least to indicate the allocation of time resources for the PUSCH. The time domain resource allocation field included in the DCI format 0_0 may be used at least to indicate the allocation of time resources for the PUSCH scheduled by the DCI format 0_0.

[0128] The frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to PUSCH. The frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to PUSCH scheduled by DCI format 0_0.

[0129] The MCS field included in the DCI format 0_0 may be used to indicate at least a part or all of the modulation scheme of the PUSCH and / or the target coding rate of the PUSCH. The MCS field included in the DCI format 0_0 may be used to indicate at least a part or all of the modulation scheme of the PUSCH and / or the target coding rate of the PUSCH scheduled by the DCI format 0_0. The size of the transport block of the PUSCH (TBS: Transport Block Size) may be given based on at least a part or all of the target coding rate and the modulation scheme of the PUSCH.

[0130] DCI format 0_0 may not include a field for CSI request. That is, DCI format 0_0 may not request CSI.

[0131] DCI format 0_0 may not include a carrier indicator field. An uplink component carrier on which a PUSCH scheduled by DCI format 0_0 is arranged may be the same as an uplink component carrier on which a PDCCH including DCI format 0_0 is arranged.

[0132] DCI format 0_0 may not include a BWP field. An uplink BWP on which a PUSCH scheduled by DCI format 0_0 is arranged may be the same as an uplink BWP on which a PDCCH including DCI format 0_0 is arranged.

[0133] DCI format 0_1 ​​is used at least for scheduling the PUSCH of a cell (or arranged on a cell). DCI format 0_1 ​​includes at least part or all of fields 2A to 2H. 2A is a DCI format identification field. 2B is a frequency domain resource allocation field. 2C is a time domain resource allocation field. 2D is a frequency hopping flag field. 2E is an MCS field. 2F is a CSI request field. 2G is a BWP field. 2H is a carrier indicator field.

[0134] The DCI format identification field included in DCI format 0_1 ​​may indicate 0 (or may indicate that DCI format 0_1 ​​is an uplink DCI format).

[0135] The frequency domain resource allocation field included in the DCI format 0_1 ​​may be used at least to indicate the allocation of frequency resources for the PUSCH. The frequency domain resource allocation field included in the DCI format 0_1 ​​may be used at least to indicate the allocation of frequency resources for the PUSCH scheduled by the DCI format.

[0136] The time domain resource allocation field included in the DCI format 0_1 ​​may be used at least to indicate the allocation of time resources for the PUSCH. The time domain resource allocation field included in the DCI format 0_1 ​​may be used at least to indicate the allocation of time resources for the PUSCH scheduled by the DCI format 0_1.

[0137] The frequency hopping flag field may be used at least to indicate whether frequency hopping is applied to the PUSCH scheduled by DCI format 0_1.

[0138] The MCS field included in the DCI format 0_1 ​​may be used to indicate at least part or all of the modulation scheme of the PUSCH and / or the target coding rate of the PUSCH. The MCS field included in the DCI format 0_1 ​​may be used to indicate at least part or all of the modulation scheme of the PUSCH and / or the target coding rate of the PUSCH scheduled by the DCI format.

[0139] When DCI format 0_1 ​​includes a BWP field, the BWP field may be used to indicate an uplink BWP on which a PUSCH scheduled by DCI format 0_1 ​​is arranged. When DCI format 0_1 ​​does not include a BWP field, the uplink BWP on which a PUSCH is arranged may be an active uplink BWP. When the number of uplink BWPs in an uplink component carrier configured in terminal device 1 is two or more, the number of bits of the BWP field included in DCI format 0_1 ​​for scheduling a PUSCH arranged on an uplink component carrier may be one or more. When the number of uplink BWPs in an uplink component carrier configured in terminal device 1 is one, the number of bits of the BWP field included in DCI format 0_1 ​​for scheduling a PUSCH arranged on an uplink component carrier may be zero.

[0140] The CSI request field is at least used to indicate CSI reporting.

[0141] If DCI format 0_1 ​​includes a carrier indicator field, the carrier indicator field may be used to indicate the uplink component carrier (or service cell) on which the PUSCH is arranged. When DCI format 0_1 ​​does not include a carrier indicator field, the service cell on which the PUSCH is arranged may be the same as the service cell on which the PDCCH including the DCI format 0_1 ​​for scheduling the PUSCH is arranged. When the number of uplink component carriers (or the number of service cells) in the service cell group configured in the terminal device 1 is two or more (when uplink carrier aggregation operates in the service cell group), or when cross-carrier scheduling is configured for the service cell group, the number of bits of the carrier indicator field included in the DCI format 0_1 ​​for scheduling the PUSCH arranged on the service cell group may be one or more (for example, 3). When the number of uplink component carriers (or the number of service cells) in the service cell group configured in the terminal device 1 is one (when uplink carrier aggregation is not operated in the service cell group), or when cross-carrier scheduling is not configured for the service cell group, the number of bits of the carrier indicator field included in the DCI format 0_1 ​​for scheduling the PUSCH arranged on the service cell group can be zero.

[0142] DCI format 1_0 is used at least for scheduling the PDSCH of a cell (arranged on the cell). DCI format 1_0 includes at least part or all of fields 3A to 3F. 3A is a DCI format identification field. 3B is a frequency domain resource allocation field. 3C is a time domain resource allocation field. 3D is an MCS field. 3E is a PDSCH-to-HARQ-feedback indicator field. 3F is a PUCCH resource indicator field.

[0143] The DCI format identification field included in DCI format 1_0 may indicate 1 (or may indicate that DCI format 1_0 is a downlink DCI format).

[0144] The frequency domain resource allocation field included in DCI format 1_0 may be used at least to indicate frequency resource allocation of PDSCH.The frequency domain resource allocation field included in DCI format 1_0 may be used at least to indicate frequency resource allocation of PDSCH scheduled by DCI format 1_0.

[0145] The time domain resource allocation field included in the DCI format 1_0 may be used at least to indicate the time resource allocation of the PDSCH. The time domain resource allocation field included in the DCI format 1_0 may be used at least to indicate the time resource allocation of the PDSCH scheduled by the DCI format 1_0.

[0146] The MCS field included in the DCI format 1_0 may be used to indicate at least a modulation scheme of the PDSCH and / or part or all of the target coding rate of the PDSCH. The MCS field included in the DCI format 1_0 may be used to indicate at least a modulation scheme of the PDSCH scheduled by the DCI format 1_0 and / or part or all of the target coding rate of the PDSCH. The size of the transport block of the PDSCH (TBS: transport block size) may be given based at least on part or all of the target coding rate and the modulation scheme of the PDSCH.

[0147] The PDSCH-to-HARQ-Feedback Timing Indicator field may be used at least to indicate an offset from a time slot including a last OFDM symbol of a PDSCH scheduled by DCI format 1_0 to another time slot including a first OFDM symbol of a PUCCH triggered by DCI format 1_0.

[0148] The PUCCH resource indicator field may be a field indicating the index of any one or more PUCCH resources included in a PUCCH resource set for PUCCH transmission. A PUCCH resource set may include one or more PUCCH resources. The PUCCH resource indicator field may trigger PUCCH transmission using a PUCCH resource indicated at least based on the PUCCH resource indicator field.

[0149] DCI format 1_0 may not include a carrier indicator field. A downlink component carrier on which a PDSCH scheduled by DCI format 1_0 is arranged may be the same as a downlink component carrier on which a PDCCH including DCI format 1_0 is arranged.

[0150] DCI format 1_0 may not include a BWP field. A downlink BWP on which a PDSCH scheduled by DCI format 1_0 is arranged may be the same as a downlink BWP on which a PDCCH including DCI format 1_0 is arranged.

[0151] DCI format 1_1 is used at least for scheduling the PDSCH of a cell (or arranged on a cell). DCI format 1_1 includes at least part or all of fields 4A to 4H. 4A is a DCI format identification field. 4B is a frequency domain resource allocation field. 4C is a time domain resource allocation field. 4D is an MCS field. 4E is a PDSCH-to-HARQ-feedback indicator field. 4F is a PUCCH resource indicator field. 4G is a BWP field. 4H is a carrier indicator field.

[0152] The DCI format identification field included in DCI format 1_1 may indicate 1 (or may indicate that DCI format 1_1 is a downlink DCI format).

[0153] The frequency domain resource allocation field included in DCI format 1_1 may be used to indicate at least frequency resource allocation of PDSCH.The frequency domain resource allocation field included in DCI format 1_0 may be used to indicate at least frequency resource allocation of PDSCH scheduled by DCI format 1_1.

[0154] The time domain resource allocation field included in the DCI format 1_1 may be used at least to indicate the time resource allocation of the PDSCH. The time domain resource allocation field included in the DCI format 1_1 may be used at least to indicate the time resource allocation of the PDSCH scheduled by the DCI format 1_1.

[0155] The MCS field included in the DCI format 1_1 may be used to indicate at least part or all of the modulation scheme of the PDSCH and / or the target coding rate of the PDSCH. The MCS field included in the DCI format 1_1 may be used to indicate at least part or all of the modulation scheme of the PDSCH and / or the target coding rate of the PDSCH scheduled by the DCI format 1_1.

[0156] When DCI format 1_1 includes the PDSCH-to-HARQ-feedback timing indicator field, the PDSCH-to-HARQ-feedback timing indicator field indicates an offset from a time slot including the last OFDM symbol of a PDSCH scheduled by DCI format 1_1 to another time slot including the first OFDM symbol of a PUCCH triggered by DCI format 1_1. When DCI format 1_1 does not include the PDSCH-to-HARQ-feedback timing indicator field, an offset from a time slot including the last OFDM symbol of a PDSCH scheduled by DCI format 1_1 to another time slot including the first OFDM symbol of a PUCCH triggered by DCI format 1_1 is identified by a higher layer parameter.

[0157] When DCI format 1_1 includes a BWP field, the BWP field may be used to indicate a downlink BWP on which a PDSCH scheduled by DCI format 1_1 is arranged. When DCI format 1_1 does not include a BWP field, the downlink BWP on which the PDSCH is arranged may be an active downlink BWP. When the number of downlink BWPs in a downlink component carrier configured in terminal device 1 is two or more, the number of bits of the BWP field included in DCI format 1_1 for scheduling a PDSCH arranged on a downlink component carrier may be one or more. When the number of downlink BWPs in a downlink component carrier configured in terminal device 1 is one, the number of bits of the BWP field included in DCI format 1_1 for scheduling a PDSCH arranged on a downlink component carrier may be zero.

[0158] If DCI format 1_1 includes a carrier indicator field, the carrier indicator field may be used to indicate a downlink component carrier (or serving cell) on which a PDSCH is arranged. When DCI format 1_1 does not include a carrier indicator field, the downlink component carrier (or serving cell) on which a PDSCH is arranged may be the same as a downlink component carrier (or serving cell) on which a PDCCH including a DCI format 1_1 for scheduling a PDSCH is arranged. When the number of downlink component carriers (or the number of serving cells) in a service cell group configured in the terminal device 1 is two or more (when downlink carrier aggregation operates in a service cell group), or when cross-carrier scheduling is configured for a service cell group, the number of bits of the carrier indicator field included in the DCI format 1_1 for scheduling a PDSCH arranged on the service cell group may be one or more (e.g., 3). When the number of downlink component carriers (or the number of service cells) in the service cell group configured in the terminal device 1 is one (when downlink carrier aggregation is not operated in the service cell group), or when cross-carrier scheduling is not configured for the service cell group, the number of bits of the carrier indicator field included in the DCI format 1_1 for scheduling the PDSCH arranged on the service cell group can be zero.

[0159] The PDSCH may be used to transmit one or more transport blocks. The PDSCH may be used to transmit one or more transport blocks corresponding to the DL-SCH. The PDSCH may be used to transmit one or more transport blocks. The PDSCH may be used to transmit one or more transport blocks corresponding to the DL-SCH. One or more transport blocks may be arranged in the PDSCH. One or more transport blocks corresponding to the DL-SCH may be arranged in the PDSCH. The base station device 3 may transmit the PDSCH. The terminal device 1 may receive the PDSCH.

[0160] A downlink physical signal may correspond to a group of resource elements. A downlink physical signal may not carry information generated in a higher layer. A downlink physical signal may be a physical signal used in a downlink component carrier. A downlink physical signal may be transmitted by a base station device 3. A downlink physical signal may be transmitted by a terminal device 1. In a wireless communication system according to an aspect of an embodiment of the present disclosure, at least part or all of SS (synchronization signal), DL DMRS (downlink demodulation reference signal), CSI-RS (channel state information reference signal) and DL PTRS (downlink phase tracking reference signal) may be used.

[0161] The synchronization signal may be used at least for the terminal device 1 to synchronize in the frequency domain and / or time domain for the downlink. The synchronization signal is a common name for PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal).

[0162] Figure 7 is a diagram showing an example of a configuration of an SS / PBCH block according to aspects of an embodiment of the present disclosure. Figure 7 In the figure, the horizontal axis indicates the time domain (OFDM symbol index l sym ), and the vertical axis indicates the frequency domain. The oblique line block indicates a group of resource elements of the PSS. The grid line block indicates a group of resource elements of the SSS. In addition, the block in the horizontal line indicates a group of resource elements of the PBCH and a group of resource elements of the DMRS for the PBCH (DMRS related to the PBCH, DMRS included in the PBCH, corresponding to the DMRS of the PBCH).

[0163] like Figure 7As shown, the SS / PBCH block includes PSS, SSS and PBCH. The SS / PBCH block includes 4 consecutive OFDM symbols. The SS / PBCH block includes 240 subcarriers. PSS is allocated the 57th to 183rd subcarriers of the first OFDM symbol. SSS is allocated the 57th to 183rd subcarriers of the third OFDM symbol. The first subcarrier to the 56th subcarrier of the first OFDM symbol may be set to zero. The 184th to the 240th subcarrier of the first OFDM symbol may be set to zero. The 49th to the 56th subcarrier of the third OFDM symbol may be set to zero. The 184th to the 192nd subcarrier of the third OFDM symbol may be set to zero. In the first to the 240th subcarrier of the second OFDM symbol, the PBCH is allocated subcarriers that are not allocated to the DMRS for the PBCH. In the first to the 48th subcarrier of the third OFDM symbol, the PBCH is allocated subcarriers that are not allocated to the DMRS for the PBCH. In the 193rd to 240th subcarriers of the third OFDM symbol, the PBCH is allocated subcarriers not allocated to the DMRS for the PBCH. In the 1st to 240th subcarriers of the 4th OFDM symbol, the PBCH is allocated subcarriers not allocated to the DMRS for the PBCH.

[0164] The antenna ports of PSS, SSS, PBCH, and DMRS for PBCH in the SS / PBCH block may be the same.

[0165] The PBCH can be estimated from the DMRS for PBCH. For the DM-RS for PBCH, the channel on which a symbol for PBCH on an antenna port is transmitted can be inferred from the channel on which another symbol for DM-RS on an antenna port is transmitted only when the two symbols are within the SS / PBCH block transmitted in the same slot and have the same SS / PBCH block index.

[0166] DL DMRS is a common name for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.

[0167] A set of antenna ports for DMRS of PDSCH (DMRS associated with PDSCH, DMRS included in PDSCH, DMRS corresponding to PDSCH) may be given based on a set of antenna ports of PDSCH. A set of antenna ports for DMRS of PDSCH may be the same as a set of antenna ports of PDSCH.

[0168] The transmission of the PDSCH and the transmission of the DMRS for the PDSCH may be indicated (or scheduled) by one DCI format. The PDSCH and the DMRS for the PDSCH may be collectively referred to as the PDSCH. Transmitting the PDSCH may be transmitting the PDSCH and the DMRS for the PDSCH.

[0169] The PDSCH can be estimated from the DMRS for the PDSCH. For the DM-RS associated with the PDSCH, the channel on which a symbol for the PDSCH on one antenna port is transmitted can be inferred from the channel on which another symbol for the DM-RS on the antenna port is transmitted only if both symbols are within the same resources as the scheduled PDSCH, in the same time slot, and in the same PRG (precoding resource group).

[0170] An antenna port for a DMRS of a PDCCH (a DMRS associated with a PDCCH, a DMRS included in a PDCCH, a DMRS corresponding to a PDCCH) may be the same as an antenna port of the PDCCH.

[0171] The PDCCH can be estimated from the DMRS for the PDCCH. For the DM-RS associated with the PDCCH, the channel on which a symbol for the PDCCH on one antenna port is transmitted can be inferred from the channel on which another symbol for the DM-RS on the same antenna port is transmitted only if the two symbols are within resources that the UE can assume that they use the same precoding (i.e., within resources in a REG packet).

[0172] BCH (Broadcast Channel), UL-SCH (Uplink Channel) and DL-SCH (Downlink Channel) are transport channels. The channels used in the MAC layer are called transport channels. The unit of the transport channel used in the MAC layer is also called a transport block (TB) or a MAC PDU (Protocol Data Unit). In the MAC layer, HARQ (Hybrid Automatic Repeat Request) control is performed for each transport block. A transport block is a unit of data delivered by the MAC layer to the physical layer. In the physical layer, a transport block is mapped to a codeword, and a modulation process is performed on each codeword.

[0173] One UL-SCH and one DL-SCH may be provided for each serving cell. BCH may be provided for PCell. BCH may not be provided for PSCell and SCell.

[0174] BCCH (Broadcast Control Channel), CCCH (Common Control Channel) and DCCH (Dedicated Control Channel) are logical channels. BCCH is a channel used by the RRC layer to deliver MIB or system information. CCCH can be used to transmit common RRC messages among multiple terminal devices 1. CCCH can be used for terminal devices 1 that are not connected via RRC. DCCH can be used at least to transmit dedicated RRC messages to terminal devices 1. DCCH can be used for terminal devices 1 in RRC connected mode.

[0175] The RRC message includes one or more RRC parameters (information elements). For example, the RRC message may include a MIB. For example, the RRC message may include system information (SIB: System Information Block, MIB). SIB is a common name for various types of SIBs (e.g., SIB1, SIB2). For example, the RRC message may include a message corresponding to the CCCH. For example, the RRC message may include a message corresponding to the DCCH. The RRC message is a general term for a public RRC message and a dedicated RRC message.

[0176] The BCCH in a logical channel can be mapped to the BCH or DL-SCH in a transport channel. The CCCH in a logical channel can be mapped to the DL-SCH or UL-SCH in a transport channel. The DCCH in a logical channel can be mapped to the DL-SCH or UL-SCH in a transport channel.

[0177] The UL-SCH in the transport channel can be mapped to the PUSCH in the physical channel. The DL-SCH in the transport channel can be mapped to the PDSCH in the physical channel. The BCH in the transport channel can be mapped to the PBCH in the physical channel.

[0178] A high-layer parameter is a parameter included in an RRC message or a MAC CE (Medium Access Control Element). A high-layer parameter is a general name for information included in MIB, system information, a message corresponding to CCCH, a message corresponding to DCCH, and MAC CE.

[0179] The process performed by the terminal device 1 includes at least part or all of the following 5A to 5C. 5A is a cell search. 5B is a random access. 5C is a data communication.

[0180] Cell search is a process used by terminal device 1 to synchronize with a cell in the time domain and / or frequency domain and detect a physical cell identity. Terminal device 1 can detect a physical cell ID by performing time domain and / or frequency domain synchronization with a cell through cell search.

[0181] The sequence of the PSS is given based on at least the physical cell ID. The sequence of the SSS is given based on at least the physical cell ID.

[0182] The SS / PBCH block candidate indicates a resource where there may be a transmission of the SS / PBCH block. The SS / PBCH block may be transmitted at the resource indicated as the SS / PBCH block candidate. The base station device 3 may transmit the SS / PBCH block at the SS / PBCH block candidate. The terminal device 1 may receive (detect) the SS / PBCH block at the SS / PBCH block candidate.

[0183] A set of SS / PBCH block candidates in a half radio frame is also referred to as an SS burst set. An SS burst set is also referred to as a transmission window, an SS transmission window, or a DRS transmission window (Discovery Reference Signal Transmission Window). An SS burst set is a general name including at least a first SS burst set and a second SS burst set.

[0184] The base station device 3 transmits one or more indexed SS / PBCH blocks at a predetermined period. The terminal device 1 can detect at least one SS / PBCH block of the one or more indexed SS / PBCH blocks. The terminal device 1 can attempt to decode the PBCH included in the SS / PBCH block.

[0185] Random access is a procedure including at least part or all of message 1, message 2, message 3, and message 4.

[0186] Message 1 is a process in which the terminal device 1 transmits PRACH. The terminal device 1 transmits PRACH in one PRACH opportunity selected from one or more PRACH opportunities based at least on the index of the SS / PBCH block candidate detected according to the cell search.

[0187] The PRACH timing configuration may include a PRACH configuration period (PCF) T PCF , the number of PRACH opportunities N included in the time domain of the PRACH configuration period PCF R o ,t , the number of PRACH opportunities included in the frequency domain N RO,f , the number of random access preambles N allocated for each PRACH opportunity for random access RO 前导码 , the number of preambles N allocated for contention-based random access (CBRA) for each SS / PBCH block candidate index SSB 前导码,CBRA , and the number N of PRACH opportunities allocated for contention-based random access for each SS / PBCH block candidate index SSB RO .

[0188] At least based on the PRACH opportunity configuration, at least part or all of the time domain resources and frequency domain resources of the PRACH opportunity.

[0189] An association between an index of an SS / PBCH block candidate corresponding to an SS / PBCH block detected by terminal device 1 and a PRACH opportunity may be provided based at least on first bitmap information indicating one or more indices of an SS / PBCH block candidate for transmitting an SS / PBCH block actually transmitted. Terminal device 1 may determine an association between an index of an SS / PBCH block candidate including an SS / PBCH block detected by terminal device 1 and a PRACH opportunity. For example, the first element of the first bitmap information may correspond to an SS / PBCH block candidate having an index of 0. For example, the second element of the first bitmap information may correspond to an SS / PBCH block candidate having an index of 1. For example, the Lth element of the first bitmap information may correspond to an SS / PBCH block candidate having an index of 1. SSB -1 element may correspond to an element with index L SSB LSSB is the number of SS PBCH block candidates included in the SS burst set.

[0190] Figure 8 is a diagram showing an example of a PRACH resource setting according to aspects of an embodiment of the present disclosure. Figure 8 In the PRACH configuration period T PCF is 40ms, the number of PRACH opportunities N included in the time domain of the PRACH configuration period PCF RO,t is 1, and the number of PRACH opportunities included in the frequency domain is N RO,f Serves 2.

[0191] For example, the first bitmap information (ssb-PositionInBurst) indicating the index of the SS / PBCH block candidate for transmitting the SS / PBCH block is {1,1,0,1,0,1,0,0}. The index of the SS / PBCH block candidate for transmitting the SS / PBCH block is also called the actually transmitted SS / PBCH block or the actually transmitted SS / PBCH block candidate.

[0192] Fig. 9 According to aspects of the embodiments of the present disclosure, RO 前导码 =64, N SSB 前导码,CBRA =64, N SSB RO An example of association between the index of SS / PBCH block candidates and PRACH opportunities (SS-RO association) when = 1 and the first bitmap is set to {1, 1, 0, 1, 0, 1, 1, 0}. Fig. 9 In the example, it is assumed that the PRACH timing configuration is the same as Figure 8 Same as in Fig. 9In, the SS / PBCH block candidate with index 0 may correspond to the PRACH opportunity with index 0 (RO#0), the SS / PBCH block candidate with index 1 may correspond to the PRACH opportunity with index 1 (RO#1), and the SS / PBCH block candidate with index 3 may correspond to the PRACH opportunity with index 2 (RO#2), the SS / PBCH block candidate with index 5 may correspond to the PRACH opportunity with index 3 (RO#3), and the SS / PBCH block candidate with index 6 may correspond to the PRACH opportunity with index 4 (RO#4). Fig. 9 In the PRACH association period (PRACH AP) T APP is 120ms, including PRACH opportunities from index 0 to index 4. Fig. 9 In the PRACH association pattern period (PRACH APP) T APP is 160ms. Fig. 9 In the embodiment, the PRACH association pattern period includes a PRACH association period.

[0193] Fig.10 According to aspects of the embodiments of the present disclosure, RO 前导码 =64, N SSB 前导码,CBRA =64, N SSB RO An example of association between the index of SS / PBCH block candidates and PRACH opportunities (SS-RO association) when = 1 and the first bitmap is set to {1, 1, 0, 1, 0, 1, 0, 0}. Fig.10 In the example, it is assumed that the PRACH timing configuration is the same as Figure 8 Same as in Fig.10 In, the SS / PBCH block candidate with index 0 may correspond to the PRACH opportunity with index 0 (RO#0) and the PRACH opportunity with index 4 (RO#4), the SS / PBCH block candidate with index 1 may correspond to the PRACH opportunity with index 1 (RO#1) and the PRACH opportunity with index 5 (RO#5), the SS / PBCH block candidate with index 3 may correspond to the PRACH opportunity with index 2 (RO#2) and the PRACH opportunity with index 6 (RO#6), and the SS / PBCH block candidate with index 5 may correspond to the PRACH opportunity with index 3 (RO#3) and the PRACH opportunity with index 7 (RO#7). In Fig.10 In the PRACH association period (PRACH AP) T AP is 80ms, including PRACH opportunities from index 0 to index 3. Fig. 9In the PRACH association pattern period (PRACH APP) T APP is 160ms. Fig. 9 In the embodiment, the PRACH association pattern period includes two PRACH association periods.

[0194] The smallest index of the “SS / PBCH block candidate actually used for transmitting the SS / PBCH block” indicated by the first bitmap information may correspond to the first PRACH opportunity (PRACH opportunity with index 0). The nth index of the “SS / PBCH block candidate actually used for transmitting the SS / PBCH block” indicated by the first bitmap information may correspond to the nth PRACH opportunity (PRACH opportunity with index n-1).

[0195] The index of the PRACH opportunity is set to the PRACH opportunity included in the PRACH association pattern period, with priority given to the frequency axis (frequency first, time second).

[0196] exist Fig. 9 In, the PRACH opportunity corresponding to at least one SS / PBCH block candidate actually transmitted is a PRACH opportunity with indexes 0 to 4, and the PRACH configuration period including at least one PRACH opportunity corresponding to at least one SS PBCH block candidate actually transmitted is the first to third PRACH configuration periods. Fig.10 In the embodiment, the PRACH opportunity corresponding to at least one SS / PBCH block candidate actually transmitted is a PRACH opportunity with indexes 0 to 3, and the PRACH configuration period including at least one PRACH opportunity corresponding to at least one SS / PBCH block candidate actually transmitted is a first to a second PRACH configuration period.

[0197] When T is met APP >k*T AP When the maximum integer k is 2 or greater, a PRACH association pattern period is configured to include k PRACH association periods. Fig.10 In the case of satisfying T APP >k*T AP The maximum integer k is 2, so the first PRACH association period includes two PRACH configuration periods starting from the beginning, and the second PRACH association period includes the third PRACH configuration period to the fourth PRACH configuration period.

[0198] The terminal device 1 may transmit a PRACH having a random access preamble in a PRACH timing selected from among PRACH timings corresponding to the index of the detected SS / PBCH block candidate. The base station device 3 may receive a PRACH in the selected PRACH timing.

[0199] Message 2 is a process in which the terminal device 1 attempts to detect DCI format 1_0 having CRC (Cyclic Redundancy Check) scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier). The terminal device 1 may attempt to detect DCI format 1_0 in the search space set.

[0200] Message 3 is a procedure for transmitting a PUSCH scheduled by a random access response grant included in a PDSCH (random access response) scheduled by DCI format 1_0 detected in the process of message 2. The random access response grant is indicated by a MAC CE, which is included in a PDSCH scheduled by DCI format 1_0.

[0201] The PUSCH scheduled based on the random access response grant is message 3PUSCH or PUSCH.Message 3PUSCH contains contention resolution identifier MAC CE.Content resolution ID MAC CE includes contention resolution ID.

[0202] Retransmission of message 3 PUSCH is scheduled by DCI format 0_0 with CRC scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

[0203] Message 4 is a process of attempting to detect DCI format 1_0 having CRC scrambled by C-RNTI (Cell-Radio Network Temporary Identifier) ​​or TC-RNTI. Terminal device 1 receives PDSCH scheduled based on DCI format 1_0. PDSCH may include a contention resolution ID.

[0204] Data communication is a general term used for downlink communication and uplink communication.

[0205] In data communication, terminal device 1 attempts to detect PDCCH (attempts to monitor PDCCH, monitors PDCCH) in resources identified at least based on one or all of a control resource set and a search space set. This is also referred to as "terminal device 1 attempts to detect PDCCH in the control resource set", "terminal device 1 attempts to detect PDCCH in the search space set", "terminal device 1 attempts to detect PDCCH candidates in the control resource set", "terminal device 1 attempts to detect PDCCH candidates in the search space set", "terminal device 1 attempts to detect DCI format in the control resource set", or "terminal device 1 attempts to detect DCI format in the search space set".

[0206] The control resource set is a resource set configured by a plurality of resource blocks in a time slot and a predetermined number of OFDM symbols.

[0207] The resource set used for the control resource set may be indicated by a higher layer parameter. The number of OFDM symbols included in the control resource set may be indicated by a higher layer parameter.

[0208] A PDCCH may also be referred to as a PDCCH candidate.

[0209] A search space set may be defined as a group of PDCCH candidates. A search space set may be a common search space (CSS) set or a UE-specific search space (USS) set.

[0210] The CSS set is a generic name for a PDCCH common search space set of type 0, a PDCCH common search space set of type 0a, a PDCCH common search space set of type 1, a PDCCH common search space set of type 2, and a PDCCH common search space set of type 3. The USS set may also be referred to as a UE-specific PDCCH search space set.

[0211] The type-0 PDCCH common search space set may be used as a common search space set with an index of 0. The type-0 PDCCH common search space set may be a common search space set with an index of 0.

[0212] The search space set is associated with (included in, corresponds to) a control resource set. The index of the control resource set associated with the search space set may be indicated by a higher layer parameter.

[0213] For the search space set, part or all of 6A to 6C may be indicated by at least a high-level parameter. 6A is the PDCCH monitoring period. 6B is the PDCCH monitoring pattern within the time slot. 6C is the PDCCH monitoring offset.

[0214] The monitoring opportunity of the search space set may correspond to one or more OFDM symbols to which the first OFDM symbol of the control resource set associated with the search space set is allocated. The monitoring opportunity of the search space set may correspond to a resource identified by the first OFDM symbol of the control resource set associated with the search space set. The monitoring opportunity of the search space set is given based on at least part or all of the PDCCH monitoring periodicity, the PDCCH monitoring pattern within the time slot, and the PDCCH monitoring offset.

[0215] Fig.11 is a diagram showing an example of monitoring opportunities for a search space set according to aspects of an embodiment of the present disclosure. Fig.11 , search space set 91 and search space set 92 are sets in the primary cell 301 , search space set 93 is a set in the secondary cell 302 , and search space set 94 is a set in the secondary cell 303 .

[0216] exist Fig.11, blocks indicated by grid lines indicate search space set 91, blocks indicated by upper right slanted lines indicate search space set 92, blocks indicated by upper left slanted lines indicate search space set 93, and blocks indicated by horizontal lines indicate search space set 94.

[0217] exist Fig.11 , the PDCCH monitoring periodicity of search space set 91 is set to 1 time slot, the PDCCH monitoring offset of search space set 91 is set to 0 time slot, and the PDCCH monitoring pattern of search space set 91 is [1,0,0,0,0,0,0,1,0,0,0,0,0,0,0]. That is, the monitoring timing of search space set 91 corresponds to the first OFDM symbol (OFDM symbol #0) and the eighth OFDM symbol (OFDM symbol #7) in each time slot.

[0218] exist Fig.11 , the PDCCH monitoring periodicity of search space set 92 is set to 2 time slots, the PDCCH monitoring offset of search space set 92 is set to 0 time slots, and the PDCCH monitoring pattern of search space set 92 is [1,0,0,0,0,0,0,0,0,0,0,0,0,0]. That is, the monitoring timing of search space set 92 corresponds to the first OFDM symbol (OFDM symbol #0) in each even time slot.

[0219] exist Fig.11 , the PDCCH monitoring periodicity of search space set 93 is set to 2 time slots, the PDCCH monitoring offset of search space set 93 is set to 0 time slot, and the PDCCH monitoring pattern of search space set 93 is [0,0,0,0,0,0,0,1,0,0,0,0,0,0,0]. That is, the monitoring timing of search space set 93 corresponds to the eighth OFDM symbol (OFDM symbol #8) in each even time slot.

[0220] exist Fig.11 , the PDCCH monitoring periodicity of search space set 94 is set to 2 time slots, the PDCCH monitoring offset of search space set 94 is set to 1 time slot, and the PDCCH monitoring pattern of search space set 94 is [1,0,0,0,0,0,0,0,0,0,0,0,0,0]. That is, the monitoring timing of search space set 94 corresponds to the first OFDM symbol (OFDM symbol #0) in each odd time slot.

[0221] The type-0 PDCCH common search space set may be used at least for a DCI format having a cyclic redundancy check (CRC) sequence scrambled by SI-RNTI (System Information-Radio Network Temporary Identifier).

[0222] The class 0a PDCCH common search space set may be used at least for DCI formats with a cyclic redundancy check sequence scrambled by SI-RNTI.

[0223] The type-1 PDCCH common search space set may be used for at least a DCI format having a CRC sequence scrambled by RA-RNTI (Random Access-Radio Network Temporary Identifier) ​​or a CRC sequence scrambled by TC-RNTI (Temporary Cell-Radio Network Temporary Identifier).

[0224] Type-2 PDCCH common search space set may be used for DCI formats with a CRC sequence scrambled by P-RNTI (Paging-Radio Network Temporary Identifier).

[0225] A type-3 PDCCH common search space set is available for DCI formats with a CRC sequence scrambled by a C-RNTI (Cell-Radio Network Temporary Identifier).

[0226] The UE-specific search space set may be used at least for DCI formats with a CRC sequence scrambled by the C-RNTI.

[0227] In downlink communication, terminal device 1 can detect the downlink DCI format. The detected downlink DCI format is used at least for resource allocation of PDSCH. The detected downlink DCI format is also called downlink allocation. Terminal device 1 attempts to receive PDSCH. Based on the PUCCH resources indicated according to the detected downlink DCI format, the HARQ-ACK corresponding to the PDSCH (corresponding to the HARQ-ACK of the transport block included in the PDSCH) can be reported to the base station device 3.

[0228] In uplink communication, terminal device 1 can detect an uplink DCI format. The detected uplink DCI format is used at least for resource allocation of PUSCH. The detected uplink DCI format is also called an uplink grant. Terminal device 1 transmits PUSCH.

[0229] The base station device 3 and the terminal device 1 may perform a channel access process in the service cell C. The base station device 3 and the terminal device 1 may perform transmission of a transmission wave in the service cell C. For example, the service cell C may be a service cell configured in an unlicensed frequency band. The transmission wave is a physical signal transmitted from the base station device 3 to the medium or a physical signal transmitted from the terminal device 1 to the medium.

[0230] The base station device 3 and the terminal device 1 may perform a channel access process on a carrier f of the serving cell c. The base station device 3 and the terminal device 1 may perform transmission of a transmission wave on a carrier f of the serving cell c. The carrier f is a carrier included in the serving cell c. The carrier f may be configured by a set of resource blocks given based on high-level parameters.

[0231] The base station apparatus 3 and the terminal apparatus 1 may perform a channel access procedure on a carrier f of the serving cell c. The base station apparatus 3 and the terminal apparatus 1 may perform transmission of a transmission wave on a BWP b of a carrier f of the serving cell c. The BWP b is a subset of resource blocks included in the carrier f.

[0232] The base station device 3 and the terminal device 1 may perform a channel access procedure in the BWP b of the carrier f of the serving cell c. The base station device 3 and the terminal device 1 may perform transmission of a transmission wave in the carrier f of the serving cell c. Performing transmission of a transmission wave on the carrier f of the serving cell c may be transmitting a transmission wave on any set of BWPs included in the carrier f of the serving cell c.

[0233] The base station apparatus 3 and the terminal apparatus 1 may perform a channel access procedure in the BWP b of the carrier f of the serving cell c. The base station apparatus 3 and the terminal apparatus 1 may transmit a transmission wave in the BWP b of the carrier f of the serving cell c.

[0234] The channel access process may include at least one or both of a first sensing process and a counting process. The first channel access process may include a first measurement. The first channel access process may not include a counting process. The second channel access process may include at least both the first measurement and the counting process. The channel access process is a name that includes part or all of the first channel access process and the second channel access process.

[0235] After performing the first channel access procedure, a transmission wave including at least an SS / PBCH block may be transmitted. After performing the first channel access procedure, the gNB may transmit at least part or all of the SS / PBCH block, the PDSCH including broadcast information, the PDCCH including a DCI format for scheduling the PDSCH, and the CSI-RS. After performing the second channel access procedure, a transmission wave including at least a PDSCH including information other than the broadcast information may be transmitted. The PDSCH including the broadcast information may include at least part or all of the following: a PDSCH including system information, a PDSCH including paging information, and a PDSCH for random access (e.g., message 2 and / or message 4).

[0236] The transmission wave is also called DRS (Discovery Reference Signal), which includes at least part or all of the SS / PBCH block, the PDSCH including broadcast information, the PDCCH including the DCI format for scheduling the PDSCH, and the CSI-RS. DRS can be a set of physical signals transmitted after the first channel access process.

[0237] If the period of the DRS is less than or equal to a predetermined length and the duty cycle of the DRS is less than or equal to a predetermined value, a transmission wave including the DRS may be transmitted after performing the first channel access procedure. When the duration of the DRS exceeds a predetermined length, a transmission wave including the DRS may be transmitted after performing the second channel access procedure. When the duty cycle of the DRS exceeds a predetermined value, a transmission wave including the DRS may be transmitted after performing the second channel access procedure. For example, the predetermined length may be 1 ms. For example, the predetermined value may be 1 / 20.

[0238] Transmitting the transmission wave after performing the channel access procedure may be transmitting the transmission wave based on the channel access procedure.

[0239] The first measurement may be that the medium is detected to be idle during one or more LBT time slot durations of the postponed duration. Here, LBT (Listen Before Talk) may be a process in which whether the medium is idle or busy is given based on carrier sensing. Carrier sensing may be used to perform energy detection in the medium. For example, "busy" may be a state in which the amount of energy detected by carrier sensing is equal to or greater than a predetermined threshold. "Idle" may be a state in which the amount of energy detected by carrier sensing is less than a predetermined threshold. In addition, the amount of energy detected by carrier sensing equal to a predetermined threshold may be "idle". In addition, the amount of energy detected by carrier sensing equal to a predetermined threshold may be "busy".

[0240] The LBT slot duration is the time unit of the LBT. For each LBT slot duration, a medium idle or busy state can be provided. For example, the LBT slot duration can be 9 microseconds.

[0241] Delay duration T d may include at least a duration T f and one or more LBT time slot durations. For example, the duration T f Can be 16 microseconds.

[0242] Fig.12 is a diagram showing an example of a counting process according to aspects of an embodiment of the present disclosure. The counting process includes at least part or all of steps A1 to A6. Step A1 includes setting the value N of the counter to N init Here, N init is a value randomly (or pseudo-randomly) selected from integer values ​​in the range of 0 to CWp. CWp is the contention window size (CWS) for channel access priority p.

[0243] In step A2, it is determined whether the value of the counter N is zero. Step A2 includes the operation of completing (or terminating) the channel access process when the counter N is zero. Step A2 includes the operation of proceeding to step A3 when the counter N is not zero. Fig.12 In step A2, "true" corresponds to the fact that the evaluation formula is true in the step including the operation of determining the evaluation formula. In addition, "false" corresponds to the fact that the evaluation formula is false in the step including the operation of determining the evaluation formula. In step A2, the evaluation formula corresponds to the counter N=0.

[0244] For example, step A3 may include the step of decrementing the value N of the counter. Decrementing the value N of the counter may be to reduce the value N of the counter by 1. That is, decrementing the value N of the counter may be to set the value N of the counter to N-1.

[0245] For example, step A3 may include the step of decrementing the value N of the counter when N>0. In addition, step A3 may include the step of decrementing the value N of the counter when the base station device 3 or the terminal device 1 chooses to decrement the counter N. Step A3 may also include the step of decrementing the value N of the counter when N>0 and the base station device 3 chooses to decrement the counter N. Step A3 may also include the step of decrementing the value N of the counter when N>0 and the terminal device 1 chooses to decrement the counter N.

[0246] For example, step A4 may include an operation of performing carrier sensing on the medium in the LBT time slot duration d, and an operation of proceeding to step A2 if the LBT time slot duration d is idle. In addition, step A4 may include an operation of proceeding to step A2 when it is determined through carrier sensing that the LBT time slot duration d is idle. In addition, step A4 may include an operation of performing carrier sensing in the LBT time slot duration d, and an operation of proceeding to step A5 when the LBT time slot duration d is busy. In addition, step A4 may include an operation of proceeding to step A5 when it is determined through carrier sensing that the LBT time slot duration d is busy. Here, the LBT time slot duration d may be the next LBT time slot duration of the LBT time slot duration that has been carrier sensed during the counting process. In step A4, the evaluation formula may correspond to the LBT time slot duration d being idle.

[0247] In step A5, the medium is idle until the medium is detected to be busy during a specific LBT time slot duration included in the delay duration, or the medium is idle during all LBT time slot durations included in the delay duration. This includes performing carrier sensing until "idle" is detected.

[0248] Step A6 includes an operation of proceeding to step A5 when medium busy is detected in a specific LBT time slot duration included in the delay duration. Step A6 includes an operation of proceeding to step A2 when medium idle is detected in all LBT time slot durations included in the delay duration. In step A6, the evaluation formula may correspond to medium idle in a specific LBT time slot duration.

[0249] CW min,p Indicates the minimum value in the range of possible values ​​of the contention window size CWp for channel access priority p. max,p Indicates the maximum value in the range of possible values ​​of the contention window size CWp for channel access priority p.

[0250] When transmitting a transmission wave including at least a physical channel (eg, PDSCH) associated with channel access priority p, CWp is managed by base station device 3 or terminal device 1. Base station device 3 or terminal device 1 adjusts CWp before step A1 in the counting process.

[0251] For a PUSCH scheduled by a DCI format with a CRC scrambled by TC-RNTI, the frequency domain resource allocation information is provided by the frequency domain resource allocation field in the DCI format. The resource block allocation information in the frequency domain resource allocation information indicates a group of VRBs used for the PUSCH. For a DCI format with a CRC scrambled by TC-RNTI, the frequency domain resource allocation information may not include resource allocation type information.

[0252] For a PUSCH scheduled by a random access response grant, the frequency domain resource allocation information is provided by the random access response grant. The resource block allocation information in the frequency domain resource allocation field indicates a group of VRBs used for the PUSCH. Here, if N size BWP If it is equal to or less than 180, the frequency domain resource allocation field is truncated to the ceil(log2(N size BWP *(N size BWP +1) / 2)) LSBs (least significant bits). Here, N size BWP is the number of resource blocks in the initial UL BWP for terminal device 1 in case of PUSCH scheduled by a random access response grant. In addition, if N size BWP If it is greater than 180, the value is set to '0' by floor(log2(N size BWP *(N size BWP +l) / 2))-14 MSB (most significant bit) in NULhop The bit is then appended to the frequency domain resource allocation field. Here, N UL,hop The number of bits indicating the frequency offset value of the frequency hopping. UL,hop Can be 0, 1, or 2, based at least on the value of the Hopping Flag field in the Random Access Response Grant and N size BWP The truncated frequency domain resource allocation field or the additional frequency domain resource allocation field provides frequency domain resource allocation information.

[0253] The truncated frequency domain resource allocation field or the additional frequency domain resource allocation field may be interpreted as a frequency domain resource allocation field for DCI format 0_0 detected in the CSS set.

[0254] The truncated frequency domain resource allocation field or the additional frequency domain resource allocation field may be interpreted in the same manner as the frequency domain resource allocation field for DCI format 0_0 detected in the CSS set.

[0255] The truncated frequency-domain resource allocation field or the additional frequency-domain resource allocation field may be interpreted based on the assumption that DCI format 0_0 is detected in the CSS set.

[0256] There are at least 3 ways of interpreting the frequency domain resource allocation field. The first interpretation is for the case where DCI format 0_0 is detected in the CSS set. The second interpretation is for the case where DCI format 0_0 is detected in the USS set, and the number of bits of the frequency domain resource allocation field in DCI format 0_0 (or the number of bits of DCI format 0_0) is derived from the size of the active UL BWP for terminal device 1. The third interpretation is for the case where DCI format 0_0 is detected in the USS set, the number of bits of the frequency domain resource allocation field in DCI format 0_0 (or the number of bits of DCI format 0_0) is derived from the size of the initial UL BWP for terminal device 1, and the frequency domain resource allocation field is applied to an active UL BWP that is different from the initial UL BWP.

[0257] The resource block allocation information in the frequency domain resource allocation field indicates a group of VRBs used for PUSCH. The frequency domain resource allocation information may include N UL,hop The VRB is in the active UL BWP for terminal device 1.

[0258] Hereinafter, a first explanation for a case where DCI format 0_0 is detected in a CSS set is described.

[0259] Fig.13 is an example of a frequency domain resource allocation process for resource allocation type 1 for PUSCH according to aspects of the embodiments of the present disclosure. Fig.13 In , each block represents a resource block. Fig.13 In A, each block represents a VRB. Fig.13 In B, each block represents a PRB.

[0260] The resource allocation of PUSCH in VRB area is indicated by RIV (Resource Indicator Value), which is determined by resource block allocation information. RIV indicates the resource allocation of PUSCH with index RB start The starting VRB and the length L of the VRBs allocated continuously RBs In terms of length.

[0261] In case that the resource block allocation information indicates RIV, the resource block allocation information is also referred to as a type 1 resource allocation field.

[0262] In (L RBs -1) is less than or equal to floor(N size BWP / 2), RIV is equal to N size BWP *(L RBs -1)+RB start . In (L RBs -1) is greater than floor(N size BWP / 2), RIV is equal to N size BWP *(N size BWP -L RBs +1)+N size BWP -1-RB start For the first explanation, N size BWP is the number of resource blocks used for the initial UL BWP of terminal device 1. For the second interpretation, N size BWP is the number of resource blocks used for the active UL BWP of terminal device 1.

[0263] For the third interpretation, the formula for deriving the RIV is different from that of the first and second interpretations.

[0264] exist Fig.13 In A, the VRBs allocated to PUSCH are indicated by the upper left slash. The VRBs allocated to PUSCH are mapped to the corresponding PRBs through VRB-to-PRB mapping. In VRB-to-PRB mapping, if condition X is met, the VRB with index n is mapped to the VRB with index n+N. start BWP,0 -N start BWP,iPRB of. In addition, in the case where condition X is not satisfied, the VRB with index n is mapped to the PRB with index n. Condition X includes part or all of condition X1, condition X2, condition X3, condition X4, condition X5 and condition X6. Condition X1 is that the PUSCH is scheduled by a random access response grant. Condition X2 is that the PUSCH is scheduled by a DCI format with a CRC scrambled by TC-RNTI. Condition X3 is that the PUSCH is in an active UL BWP with index i for terminal device 1, where N start BWP,i is the index of the starting common resource block of the active UL BWP with index i. Condition X4 is that the active UL BWP with index i includes all physical resource blocks of the initial UL BWP for terminal device 1, where N start BWP,0 is the index of the starting common resource block of the initial UL BWP. Condition X5 is that the active UL BWP with index i is configured to have the same subcarrier spacing as the subcarrier spacing of the initial UL BWP. Condition X6 is that the active UL BWP with index i is configured to have the same CP length as the CP length of the initial UL BWP.

[0265] For example, condition X may be that the PUSCH is scheduled by a random access response grant or by a DCI format with a CRC scrambled by the TC-RNTI in an active UL BWP, the active UL BWP includes all physical resource blocks of the initial UL BWP, the active UL BWP has the same subcarrier spacing as the initial UL BWP, and the active UL BWP has the same CP length as the initial UL BWP.

[0266] exist Fig.13 In B, when condition X is met, the PRBs allocated to the PUSCH are indicated by the upper left slash based on the VRB-to-PRB mapping.

[0267] For NR-U (Unlicensed New Radio), the frequency domain resource allocation process for PUSCH can be enhanced by using an interlace-based method to meet the requirements required by NR-U. The interlace-based method can be that the resource block allocation information indicates a set of interlaces each including one or more resource blocks. Here, each interlace in the interlace may include one or more CRBs, one or more PRBs, or one or more VRBs.

[0268] For example, the indication method may be based at least on the RIV. Here, in the indication method, the resource block allocation information indicates a starting index of an interlace for the PUSCH and the number of interlaces allocated to the PUSCH.

[0269] For example, the indication method may be based at least on a bitmap. Here, in the indication method, the resource block allocation information comprises a bitmap, wherein each bit in the bitmap corresponds to an interlace.

[0270] Fig.14 is an example of interleaving in a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure. Fig.14 In FIG. 1 , each block represents a resource block. In addition, a horizontal line represents interlace 2001. In addition, an upper left oblique line represents interlace 2002. In addition, an oblique grid line represents interlace 2003. In addition, a grid line represents interlace 2004. In addition, an upper right oblique line represents interlace 2005. The total number of interlaces N in a BWP (or SCS specific carrier) is M It could be 5, 10 or something else.

[0271] like Fig.14 As shown, each resource block in the aggregate bandwidth 2013 may be included in an interlace. An interlace index may be cyclically assigned to each resource block in the frequency domain. Here, point 3000 is a reference point for the interlace index assignment. For example, Fig.14 In FIG. 1 , the index 0 may be assigned to a resource block including a subcarrier having the same center frequency as point 3000. For example, a resource block having an index of I CRB The interleaving index of the common resource block I L Based on at least the relationship I L =mod(I CRB ,N M ) is given. Here, N M is the number of interleavings in a BWP (or in a specific carrier of an SCS). For example, in a BWP with index i, VRB The interleaving index I of the virtual resource block L Based on at least the relationship I L =mod(I VRB +N start,u BWP,i ,N M ) is given. Here, N start,u BWP,i Indicates the reference point of the BWP with index i. For example, L The interleaving may include a set of virtual resource blocks. VRB Each resource block in the virtual resource block satisfies I L =mod(I VRB +N start,u BWP,i ,N M ).

[0272] exist Fig.14In FIG. 2 , there is a gap 2099 between bandwidth 2011 and bandwidth 2012. The gap may be used as a potential guard band for bandwidth 2011 and bandwidth 2012. However, it is also possible that there is no gap between bandwidth 2011 and bandwidth 2012.

[0273] Bandwidth 2011 , bandwidth 2012 , and gap 2099 may be aggregated into aggregate bandwidth 2013 .

[0274] Fig.15 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure. Fig.15 In FIG. 1 , it is assumed that the resource block allocation information indicates interlace 2002 and interlace 2003. In addition, it is assumed that bandwidth 2012 is configured as the active UL BWP for terminal device 1. In addition, it is assumed that Fig.15 The resource blocks described in are VRBs. In this case, the VRBs allocated to PUSCH can be represented by the upper left slash and slash grid lines. All other outlined boxes are not allocated to PUSCH.

[0275] In the case where the resource block allocation information indicates a set of interlaces for PUSCH, the VRBs allocated to PUSCH may be VRBs included in the set of interlaces. Here, the VRBs are defined within the active UL BWP for the terminal device 1.

[0276] Fig.16 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure. Fig.16 In FIG. 1 , it is assumed that the resource block allocation information indicates interlace 2002 and interlace 2003. In addition, it is assumed that the aggregate bandwidth 2013 is configured as the active UL BWP for terminal device 1. In addition, it is assumed that Fig.16 The resource blocks described in are VRBs. In this case, the VRBs allocated to PUSCH can be represented by the upper left slash and slash grid lines. All other outlined boxes are not allocated to PUSCH.

[0277] In the case where the resource block allocation information indicates a set of interlaces for PUSCH, the VRBs allocated to PUSCH may be VRBs included in the set of interlaces. Here, the VRBs are defined within the active UL BWP for the terminal device 1.

[0278] Fig.17 is an example of a frequency domain resource allocation process according to aspects of the embodiments of the present disclosure. Fig.17 In FIG. 1 , it is assumed that the resource block allocation information indicates interlace 2002 and interlace 2003. In addition, it is assumed that the aggregate bandwidth 2013 is configured as the active UL BWP for terminal device 1. In addition, it is assumed that the bandwidth 2012 is configured as the initial UL BWP for terminal device 1. In addition, it is assumed that Fig.16The resource blocks described in are VRBs. In this case, the VRBs allocated to PUSCH can be represented by the upper left slash and slash grid lines. All other outlined boxes are not allocated to PUSCH.

[0279] In the case where the resource block allocation information indicates a set of interlaces for PUSCH, the VRB allocated to PUSCH may be a VRB within a bandwidth included in the set of interlaces. Here, the VRB is defined within the active UL BWP for terminal device 1. In addition, the bandwidth is defined so as to have the same number of resource blocks as the initial UL BWP, but the bandwidth starts from the starting VRB in the active UL BWP.

[0280] For PUSCH scheduled by a random access response grant or a DCI format with a CRC scrambled by TC-RNTI, the resource block allocation for PUSCH needs to be handled carefully because the base station device 3 cannot identify the terminal device for which the base station device 3 needs to grant PUSCH. For example, the resource block allocation can be the same regardless of the active UL BWP of the terminal device.

[0281] In the first solution, in the first case where condition X is satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the first resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the initial UL BWP. If the first resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0282] In the first solution, in the second case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the second resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the initial UL BWP. If the second resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0283] In the first solution, in a third case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the third resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. If the third resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0284] In the first solution, in a fourth case where a PUSCH is scheduled by a DCI format 0_0 detected in a USS set and having a CRC scrambled by a C-RNTI, an active UL BWP is a UL BWP different from an initial UL BWP (a UL BWP with an index i), and the resource block allocation information indicates one or more interlaces, a fourth resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. If the fourth resource block is a VRB, the VRB with an index n is mapped to a PRB with an index n.

[0285] In the first solution, in the fifth case where the PUSCH is scheduled by DCI format 0_1 ​​with CRC scrambled by C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the fifth resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. If the fifth resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0286] In the first solution, in a sixth case where condition X is satisfied, the active UL BWP is the initial UL BWP, and the resource block allocation information indicates one or more interlaces, the sixth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the initial UL BWP. If the sixth resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0287] In the first solution, in the seventh case where condition X is not satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates a set of interlaces, the seventh resource block allocated to the PUSCH may be a resource block in the set of interlaces included in the active UL BWP. If the fifth resource block is a VRB, the VRB with index n is mapped to the PRB with index n.

[0288] In the first solution, in the case where the active UL BWP is a UL BWP different from the initial UL BWP (ULBWP with index i), and the resource block allocation information indicates one or more interlaces, the eighth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the initial UL BWP. If the eighth resource block is a VRB, the VRB with index n is mapped to the PRB with index n. In the case where the active UL BWP is the initial UL BWP, and the resource block allocation information indicates the one or more interlaces, the ninth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the initial UL BWP. If the ninth resource block is a VRB, the VRB with index n is mapped to the PRB with index n. The eighth resource block may be the same as the ninth resource block.

[0289] In a first solution, the staggered allocation may be based at least on the relationship I L =mod(I CRB ,N M ) or I L =mod(I VRB +N start,u BWP,i ,N M ). Here, N start,u BVP,i Indicates the reference point of the UL BWP with index i. In the first solution, L The interleaving may include having index I satisfying the relationship VRB resource block.

[0290] In a first solution, the first resource block may be the same as the sixth resource block in case the set of interlaces indicated by the resource block allocation information is the same and the initial UL BWP includes a different set of resource blocks from the UL BWP.

[0291] In a first solution, the first resource block may be different from the third (or fourth, fifth, seventh) resource block when the set of interlaces indicated by the resource block allocation information is the same and the initial UL BWP includes a different set of resource blocks from the UL BWP.

[0292] In the second solution, in the first case where condition X is satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the tenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP with limited bandwidth. The starting resource block of the limited bandwidth may be the same as the starting resource block of the active UL BWP. In terms of resource blocks, the length of the limited bandwidth may be the same as the length of the initial UL BWP. If the tenth resource block is a VRB, the VRB with index n is mapped to the VRB with index n+N. VRBtoPRB,second For example, N VRBtoPRB,second Can be N start BWP,0 -N start BWP,i +I start L,0 -I start L,i For example, N VRBtoPRB,second Can be N start BWP,0 -N start BWP,i -I start L,0 +I start L,i For example, N VRBtoPRB,second Can be N start BWP,0 -N start BWP,i +I start L,0 -I start L,i +M L For example, N VRBtoPRB,second Can be N start BWP,0 -N start BWP,i -I start L,0 +I start L,i +M L For example, N VRBtoPRB,second Can be based on at least N start BWP,0 、N slart BWP,i ,I start L,0 ,I start L,i and M L Here, I start L,0is the interleaving index of the starting resource block in the initial UL BWP. start L,i is the interlace index of the starting resource block in the UL BWP with index i.

[0293] In the second solution, in the second case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (the UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the eleventh resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP having a limited bandwidth. In terms of resource blocks, the length of the limited bandwidth is the same as the length of the initial UL BWP. For example, if the eleventh resource block is a VRB, the VRB with index n may be mapped to the VRB with index n+N. VRBtoPRB,second For example, if the eleventh resource block is a VRB, the VRB with index n may be mapped to the PRB with index n+N. start BWP,0 -N start BWP,i of PRB.

[0294] In the second solution, in the third case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the twelfth resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. For example, if the twelfth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0295] In the second solution, in a fourth case where the PUSCH is scheduled by DCI format 0_0 detected in the USS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the thirteenth resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. For example, if the thirteenth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0296] In the second solution, in the fifth case where the PUSCH is scheduled by DCI format 0_1 ​​with CRC scrambled by C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the fourteenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the fourteenth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0297] In the second solution, in a sixth case where condition X is satisfied, the active UL BWP is the initial UL BWP, and the resource block allocation information indicates one or more interlaces, the fifteenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the fifteenth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0298] In the second solution, in the seventh case where condition X is not satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the sixteenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the sixteenth resource block is a VRB, the VRB with index n may be mapped to a PRB with index n.

[0299] In a second solution, the staggered allocation may be based at least on the relationship I L =mod(I CRB ,N M ) or I L =mod(I VRB +N start,u BWP,i ,N M ). Here, N start,u BWP,i Indicates the reference point of the UL BWP with index i.

[0300] In a second solution, the tenth resource block may be the same as the fifteenth resource block in the case where the one or more interlaces indicated by the resource block allocation information are the same and the initial UL BWP includes a different set of resource blocks from the UL BWP. VRBtoPRB,second It may be arranged such that the tenth resource block is the same as the fifteenth resource block.

[0301] In a second solution, the tenth resource block may be different from the twelfth (or thirteenth, fourteenth, sixteenth) resource block when the one or more interlaces indicated by the resource block allocation information are the same and the initial UL BWP includes a different set of resource blocks from the UL BWP.

[0302] In the third solution, in the first case where condition X is satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the seventeenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP with limited bandwidth. The starting resource block of the limited bandwidth is the same as the starting resource block of the active UL BWP. In terms of resource blocks, the length of the limited bandwidth is the same as the length of the initial UL BWP. If the seventeenth resource block is a VRB, the VRB with index n is mapped to the VRB with index n+N. star BWP,0 -N start BWP,i of PRB.

[0303] In the third solution, in the second case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (the UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the eighteenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP with limited bandwidth. In terms of resource blocks, the length of the limited bandwidth is the same as the length of the initial UL BWP. For example, if the eighteenth resource block is a VRB, the VRB with index n may be mapped to the VRB with index n+N. start BWP,0 -N start BWP,i of PRB.

[0304] In the third solution, in the third case where the PUSCH is scheduled by DCI format 0_0 detected in the CSS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the nineteenth resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the nineteenth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0305] In the third solution, in the fourth case where the PUSCH is scheduled by DCI format 0_0 detected in the USS set and having a CRC scrambled by the C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the twentieth resource block allocated to the PUSCH may be a resource block in the one or more interlaces included in the active UL BWP. For example, if the twentieth resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0306] In the third solution, in the fifth case where the PUSCH is scheduled by DCI format 0_1 ​​with CRC scrambled by C-RNTI, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the twenty-first resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the twenty-first resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0307] In the third solution, in the sixth case where condition X is satisfied, the active UL BWP is the initial UL BWP, and the resource block allocation information indicates one or more interlaces, the twenty-second resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the twenty-second resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0308] In the third solution, in the seventh case where condition X is not satisfied, the active UL BWP is a UL BWP different from the initial UL BWP (UL BWP with index i), and the resource block allocation information indicates one or more interlaces, the twenty-third resource block allocated to the PUSCH may be a resource block included in the one or more interlaces in the active UL BWP. For example, if the twenty-third resource block is a VRB, the VRB with index n may be mapped to the PRB with index n.

[0309] For example, in the third solution, the staggered allocation may be based at least on the relationship I L =mod(I VRB ,N M ).

[0310] In a third solution, the seventeenth resource block may be identical to the twenty-second resource block when the one or more interlaces indicated by the resource block allocation information are identical and the initial UL BWP includes a different set of resource blocks from the UL BWP. In the third solution, the relationship of the interlace allocation may be set such that the seventeenth resource block is identical to the twenty-second resource block.

[0311] In a third solution, the seventeenth resource block may be different from the nineteenth (or twentieth, twenty-first, twenty-third) resource block when the one or more interlaces indicated by the resource block allocation information are the same and the initial UL BWP includes a different set of resource blocks from the UL BWP.

[0312] In order to achieve the above-mentioned object, various aspects of the present invention are designed to provide the following countermeasures. Specifically, a terminal device 1 according to a first aspect of the present invention includes: a receiving circuit configured to receive a random access response; and a transmitting circuit configured to transmit a PUSCH in an active UL BWP with an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M L interlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB resource blocks, where each resource block satisfies the relationship I L =mod(I VRB +N start,u BWP,i ,M L ), the N start,u BWP,i is the starting common resource block of the active UL BWP with index i, and the resource block allocation information in the random access response grant indicates the resource block from the M L one or more interlaces in the active UL BWP, when the active UL BWP is different from the initial UL BWP, the first resource block allocated to the PUSCH is a resource block in the one or more interlaces in the initial UL BWP, and when the active UL BWP is the initial UL BWP, the second resource block allocated to the PUSCH is the same as the first resource block.

[0313] Furthermore, the terminal device 1 according to the second aspect of the present invention comprises: a receiving circuit configured to receive a random access response; and a transmitting circuit configured to transmit a PUSCH in an active UL BWP with an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M Linterlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB Virtual resource blocks, where each resource block satisfies the relationship I L =mod(I VRB +N start,u BWP,i ,M L ), the resource block allocation information in the random access response grant indicates the resource block allocation information from the M L The virtual resource blocks allocated to the PUSCH are virtual resource blocks in the one or more interlaces in the active UL BWP with limited bandwidth, the starting virtual resource block of the limited bandwidth is the same as the starting resource block of the initial UL BWP, and the virtual resource blocks with index n in the allocated virtual resource blocks are mapped to the virtual resource blocks with index n+N VRBtoPRB physical resource blocks, in the case where the active UL BWP is different from the initial UL BWP, the Nv RBtoPRB At least based on I start L,0 and I start L,i Part or all of the I start L,0 is the interleaving index of the starting resource block of the initial ULBWP, and the I start L,i is the interlace index of the starting resource block of the active UL BWP.

[0314] Furthermore, the base station device 1 according to the third aspect of the present invention comprises: a receiving circuit configured to receive a random access response; and a transmitting circuit configured to transmit a PUSCH in an active UL BWP having an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M L interlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB Virtual resource blocks, where each resource block satisfies the relationship I L =mod(I VRB ,M L ), the resource block allocation information in the random access response grant indicates the resource block allocation information from the M LThe virtual resource blocks allocated to the PUSCH are virtual resource blocks in the one or more interlaces in the active UL BWP with limited bandwidth, the starting virtual resource block of the limited bandwidth is the same as the starting resource block of the initial UL BWP, and the virtual resource blocks with index n in the allocated virtual resource blocks are mapped to the virtual resource blocks with index n+N start BWP,0 -N start BWP,i Physical resource blocks, N start BWP,0 is the starting common resource block of the initial UL BWP, and N start BWP,i is the starting common resource block of this active UL BWP.

[0315] Furthermore, the base station device 3 according to the fourth aspect of the present invention comprises: a transmission circuit configured to transmit a random access response; and a reception circuit configured to receive a PUSCH in an active UL BWP having an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M L interlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB resource blocks, where each resource block satisfies the relationship I L =mod(I VRB +N start,u BWP,i ,M L ), the N start,u BWP,i is the starting common resource block of the active ULBWP with index i, and the resource block allocation information in the random access response grant indicates the resource block from the M L In one or more interlaces of the active UL BWP, when the active UL BWP is different from the initial UL BWP, the first resource block allocated to the PUSCH is a resource block in the one or more interlaces in the initial UL BWP, and when the active UL BWP is the initial UL BWP, the second resource block allocated to the PUSCH is the same as the first resource block.

[0316] Furthermore, the base station device 3 according to the fifth aspect of the present invention comprises: a transmission circuit configured to transmit a random access response; and a reception circuit configured to receive a PUSCH in an active UL BWP having an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M Linterlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB Virtual resource blocks, where each resource block satisfies the relationship I L =mod(I VRB +N start,u BWP,i ,M L ), the resource block allocation information in the random access response grant indicates the resource block allocation information from the M L The virtual resource blocks allocated to the PUSCH are virtual resource blocks in the one or more interlaces in the active UL BWP with limited bandwidth, the starting virtual resource block of the limited bandwidth is the same as the starting resource block of the initial UL BWP, and the virtual resource blocks with index n in the allocated virtual resource blocks are mapped to the virtual resource blocks with index n+N VRBtoPRB physical resource blocks, in the case where the active UL BWP is different from the initial UL BWP, the N VRBtoPRB At least based on I start L,0 and I start L,i Part or all of the I start L,0 is the interleaving index of the starting resource block of the initial UL BWP, and the I start L,i is the interlace index of the starting resource block of the active UL BWP.

[0317] Furthermore, the base station device 3 according to the sixth aspect of the present invention comprises: a transmission circuit configured to transmit a random access response; and a reception circuit configured to receive a PUSCH in an active UL BWP having an index i, wherein the PUSCH is scheduled by a random access response grant included in the random access response, M L interlaces are configured for the active UL BWP. L The first L An interleave includes a set of VRB Virtual resource blocks, where each resource block satisfies the relationship I L =mod(I VRB ,M L ), the resource block allocation information in the random access response grant indicates the resource block allocation information from the M LThe virtual resource blocks allocated to the PUSCH are virtual resource blocks in the one or more interlaces in the active UL BWP with limited bandwidth, the starting virtual resource block of the limited bandwidth is the same as the starting resource block of the initial UL BWP, and the virtual resource blocks with index n in the allocated virtual resource blocks are mapped to the virtual resource blocks with index n+N start BWP,0 -N start BWP,i Physical resource blocks, N start BWP,0 is the starting common resource block of the initial UL BWP, and N start BWP,i is the starting common resource block of this active UL BWP.

[0318] Each of the programs running on the base station device 3 and the terminal device 1 according to aspects of the present invention can be a program that controls a central processing unit (CPU) or the like, so that the program causes the computer to operate in a manner that realizes the functions according to the above-mentioned embodiments of the present invention. The information processed in these devices is temporarily stored in a random access memory (RAM) while being processed. Thereafter, the information is stored in various types of read-only memories (ROMs) such as flash ROMs and hard disk drives (HDDs), and is read by the CPU to be modified or rewritten when necessary.

[0319] Note that the terminal device 1 and the base station device 3 according to the above-described embodiment may be partially implemented by a computer. In this case, the configuration may be implemented by recording a program for implementing such control functions on a computer-readable recording medium and causing a computer system to read the program recorded on the recording medium for execution.

[0320] Note that it is assumed that the "computer system" mentioned here refers to a computer system built into the terminal device 1 or the base station device 3, and the computer system includes an OS and hardware components such as peripheral devices. In addition, "computer-readable recording medium" refers to portable media such as floppy disks, magneto-optical disks, ROMs, CD-ROMs, etc., and storage devices such as hard disks built into the computer system.

[0321] In addition, the "computer-readable recording medium" may include a medium that dynamically retains the program for a short period of time, such as a communication line for transmitting the program through a network (such as the Internet) or through a communication line (such as a telephone line), and may also include a medium that retains the program for a fixed period of time, such as a volatile memory within a computer system, in which case the computer system operates as a server or client. In addition, the program may be configured to implement some of the above functions, and may also be configured to be able to implement the above functions in combination with a program already recorded in the computer system.

[0322] In addition, the base station device 3 according to the above embodiment can be implemented as an aggregation (device group) including multiple devices. Each device configuring such a device group may include some or all functions or functional blocks of the base station device 3 according to the above embodiment. The device group may include each common function or each functional block of the base station device 3. In addition, the terminal device 1 according to the above embodiment can also communicate with the base station device as an aggregation.

[0323] In addition, the base station device 3 according to the above embodiment can be used as an evolved universal terrestrial radio access network (E-UTRAN) and / or NG-RAN (next generation RAN, NR-RAN). In addition, the base station device 3 according to the above embodiment may have some or all functions of a node higher than eNodeB or gNB.

[0324] In addition, some or all of the parts of each of the terminal device 1 and the base station device 3 according to the above-mentioned embodiment can be generally implemented as an LSI (which is an integrated circuit) or can be implemented as a chipset. The functional blocks of each of the terminal device 1 and the base station device 3 can be implemented as a chip alone, or some or all of the functional blocks can be integrated into the chip. In addition, the circuit integration technology is not limited to LSI, and can be implemented using a dedicated circuit or a general-purpose processor. In addition, in the case where a circuit integration technology that replaces LSI appears with the advancement of semiconductor technology, an integrated circuit based on the technology can also be used.

[0325] In addition, according to the above-mentioned embodiments, the terminal device has been described as an example of a communication device, but the present invention is not limited to such terminal devices and is applicable to terminal devices or communication devices of fixed or stationary electronic devices installed indoors or outdoors, such as audio and video (AV) equipment, kitchen equipment, cleaning machines or washing machines, air conditioning equipment, office equipment, vending machines, and other household equipment.

[0326] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the specific configuration is not limited to these embodiments and includes, for example, modifications to the design that fall within the scope of the gist of the present invention. In addition, within the scope of one aspect of the present invention defined by the claims, various modifications are possible, and embodiments obtained by appropriately combining the technical means disclosed according to different embodiments are also included in the technical scope of the present invention. In addition, configurations in which constituent elements described in the corresponding embodiments and having the same effects as each other are replaced with each other are also included in the technical scope of the present invention.

Claims

1. A terminal device, comprising: a receiving circuit configured to receive a physical downlink control channel PDCCH having a downlink control information DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and a transmitting circuit configured to transmit a physical uplink shared channel PUSCH scheduled by the DCI format; in, In case a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a contiguous set of virtual resources, and In case a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set comprising a group of interlaces, each of the interlaces comprising one or more virtual resource blocks, In the case where the first type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with index n in the first set is mapped to the virtual resource block with index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, In case that the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to a physical resource block with the index n.

2. A base station device, comprising: a transmission circuit configured to transmit a physical downlink control channel PDCCH having a downlink control information DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and A receiving circuit, wherein the receiving circuit is configured to receive a physical uplink shared channel PUSCH scheduled by the DCI format; in, In case a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a contiguous set of virtual resources, and In case a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set comprising a group of interlaces, each of the interlaces comprising one or more virtual resource blocks, In the case where the first type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with index n in the first set is mapped to the virtual resource block with index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, In case that the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to a physical resource block with the index n.

3. A communication method used by a terminal device, the communication method comprising the following steps: receiving a physical downlink control channel PDCCH having a downlink control information DCI format having a cyclic redundancy check CRC scrambled by a temporary cell-radio network temporary identifier TC-RNTI, and Transmitting a physical uplink shared channel PUSCH scheduled by the DCI format; in, In case a first type of frequency domain resource allocation is applied to the PUSCH, a frequency domain resource allocation field in the DCI format is used to determine a first set of virtual resource blocks for the PUSCH, wherein the first set includes a contiguous set of virtual resources, and In case a second type of frequency domain resource allocation is applied to the PUSCH, the frequency domain resource allocation field is used to determine a second set comprising a group of interlaces, each of the interlaces comprising one or more virtual resource blocks, In the case where the first type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with index n in the first set is mapped to the virtual resource block with index n+N start BWP,0 -N start BWP,i physical resource blocks, the N start BWP,0 is the index of the starting common resource block of the initial UL BWP, the N start BWP,i is the index of the starting common resource block of the active UL BWP, In case that the second type of frequency domain resource allocation is applied to the PUSCH, the virtual resource block with the index n is mapped to a physical resource block with the index n.

Citation Information

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