Terminal device, base station device, and communication method
By using RRC parameters to manage uplink transmissions and avoid collisions with synchronization signals, the communication efficiency and reception quality in wireless systems are improved, addressing inefficiencies in existing systems.
Patent Information
- Application Number
- JP2021213828
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2021-12-28
- Publication Date
- 2025-02-05
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Existing wireless communication systems face inefficiencies in managing uplink and downlink channels, particularly in scenarios where uplink channels collide with synchronization signal transmissions, leading to degraded reception quality and reduced communication efficiency.
A communication method and device configuration that utilizes RRC parameters to determine whether to drop uplink transmissions based on the presence of synchronization signal blocks, ensuring that uplink channels are not sent during collisions with synchronization signal transmissions, thereby maintaining communication efficiency.
Enhances communication efficiency by preventing uplink channel collisions with synchronization signals, thereby improving reception quality and reducing interference in wireless communication systems.
Smart Images

Figure 2025016819000001_ABST
Abstract
Description
[Technical field]
[0001] The present invention relates to a terminal device, a base station device, and a communication method. [Background technology]
[0002] The radio access method and radio network for cellular mobile communications (hereinafter referred to as "Long Term Evolution (LTE)" or "EUTRA: Evolved Universal Terrestrial Radio Access") is being developed by the Third Generation Partnership Project (3GPP: 3 rd The LTE standard is being considered in the LTE Generation Partnership Project. In LTE, a base station device is also called eNodeB (evolved NodeB), and a terminal device is also called UE (User Equipment). LTE is a cellular communication system in which areas covered by base station devices are arranged in multiple cell shapes. A single base station device may manage multiple serving cells.
[0003] 3GPP has been formulating wireless communication standards (NR: New Radio). Further expansion of the wireless communication standard is being considered (Non-Patent Document 1). [Prior art documents] [Non-patent literature]
[0004] [Non-Patent Document 1] “Summary of RAN Rel-18 Workshop”, RWS-210659, RAN chair, 3GPP RAN Rel-18 workshop, 28th June ― 2nd July, 2021 Summary of the Invention [Problem to be solved by the invention]
[0005] The present invention provides a terminal device, a base station device, and a communication method used in the terminal device that perform efficient communication. [Means for solving the problem]
[0006] (1) A first aspect of the present invention is a terminal device, comprising: a physical layer control unit that transmits a PUSCH; A first SS / PBCH block for a first SS / PBCH block located at a first frequency location in a serving cell. and an RRC layer processing unit that provides the physical layer control unit with RRC parameters for the first SS / PBCH block located at a second frequency position in the serving cell and second RRC parameters for a first SS / PBCH block located at a second frequency position in the serving cell, wherein the physical layer processing unit determines whether to drop the transmission of the PUSCH based on the first RRC parameters and the second RRC parameters.
[0007] (2) A second aspect of the present invention is a base station device, comprising: a physical layer control unit for receiving a PUSCH; a first SS / PBCH block located at a first frequency location in the serving cell; and an RRC layer processing unit configured to provide, to the physical layer control unit, a first RRC parameter for a first SS / PBCH block located at a second frequency position in the serving cell and a second RRC parameter for a first SS / PBCH block located at a second frequency position in the serving cell, wherein the physical layer processing unit determines whether to drop reception of the PUSCH based on the first RRC parameter and the second RRC parameter.
[0008] (3) A third aspect of the present invention is a communication method for use in a terminal device, comprising: and a first SS / PBCH block located at a first frequency location in the serving cell. and a first RRC parameter for the RRC signaling unit to be located at a second frequency location in the serving cell. and providing to a physical layer second RRC parameters for a first SS / PBCH block to be transmitted; and determining whether to drop transmission of the PUSCH based on the first RRC parameters and the second RRC parameters.
[0009] (4) A fourth aspect of the present invention is a communication method used in a base station device, receiving a first SS / PBCH broadcast channel located at a first frequency location in the serving cell; a first RRC parameter for locking and a second frequency location in the serving cell; and second RRC parameters for a first SS / PBCH block to be placed in a PUSCH block to a physical layer; and determining whether to drop reception of the PUSCH based on the first RRC parameters and the second RRC parameters. Effect of the Invention
[0010] According to the present invention, the terminal device can perform communication efficiently, and the base station device can perform communication efficiently. [Brief description of the drawings]
[0011] [Figure 1] 1 is a conceptual diagram of a wireless communication system 9 according to an aspect of the present embodiment. [Diagram 2] FIG. 2 is a diagram illustrating an example of a configuration of a resource grid according to an aspect of the present embodiment. [Diagram 3] 2 is a schematic block diagram illustrating a configuration example of a base station device 3 according to an aspect of the present embodiment. FIG. [Figure 4] 1 is a schematic block diagram showing an example of the configuration of a terminal device 1 according to an aspect of the present embodiment. [Diagram 5] 1 is a diagram showing an example of a procedure for transmitting a PUSCH of a terminal device 1 and a base station device 3 according to an embodiment of the present invention. [Figure 6]A figure showing an example of a frame configuration in TDD mode of a cell 6000 according to one embodiment of the present invention. [Figure 7] A figure showing an example of the configuration of an SS / PBCH block of a cell 6000 according to one embodiment of this invention. [Figure 8] A figure showing an example of transmission of an uplink channel according to one aspect of this embodiment. [Figure 9] FIG. 13 is a diagram illustrating an example of a carrier setting according to an embodiment of the present invention. [Figure 10] FIG. 9 is a diagram showing an example of setting the maximum number NRB of resource blocks in a transmission band setting 9001 according to an embodiment of the present invention. [Figure 11] 9 is a diagram illustrating an example of setting the minimum value of a guard band 9003 that can be set for a channel band 9000 according to an aspect of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] Hereinafter, an embodiment of the present invention will be described.
[0013] floor(C) may be a floor function for real number C. For example, floor(C) may be a function that outputs the largest integer not exceeding real number C. ceil(D) may be a ceiling function for real number D. For example, ceil(D) may be a function that outputs the smallest integer not below real number D. mod(E,F) may be a function that outputs the remainder when E is divided by F. mod(E,F) may be a function that outputs a value corresponding to the remainder when E is divided by F. exp(G)=e^G. Here, e is Napier's constant. H^I indicates H to the Ith power. max(J,K) is a function that outputs the maximum value of J and K. Here, max(J,K) is a function that outputs J or K when J and K are equal. min(L,M) is a function that outputs the maximum value of L and M. Here, min(L,M) is a function that outputs L or M when L and M are equal. round(N) is a function that outputs the integer value closest to N. “·” indicates multiplication.
[0014] FIG. 1 is a conceptual diagram of a wireless communication system 9 according to an embodiment of the present invention. The wireless communication system includes terminal devices 1A to 1C and a base station device 3 (BS#3: Base station#3). Hereinafter, the terminal devices 1A to 1C are collectively referred to as terminal device 1 (UE#1: User Equipment#1), which communicates with the base station device 3.
[0015] In the wireless communication system 9, the terminal device 1 and the base station device 3 may use one or more communication methods. For example, in the downlink of the wireless communication system 9, CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplex) may be used. In the uplink of the wireless communication system 9, either CP-OFDM or DFT-s-OFDM (Discrete Fourier Transform-spread-Orthogonal Frequency Division Multiplex) may be used. Here, DFT-s-OFDM is a communication method in which modified precoding is applied prior to signal generation in CP-OFDM. Here, modified precoding is also called DFT precoding.
[0016] As shown in Fig. 1, the base station device 3 may be configured with one transceiver device (or a transmission point, a transmitting device, a receiving point, a receiving device, a transceiver point). On the other hand, in some cases, the base station device 3 may be configured to include multiple transceivers. When the base station device 3 is configured with multiple transceivers, each of the multiple transceivers may be located at a different geographical location.
[0017] The base station device 3 may provide one or more serving cells. The serving cell may be defined as a set of resources used in the wireless communication system 9. Here, the serving cell is also referred to as a cell.
[0018] A serving cell may be configured to include one downlink component carrier and / or one uplink component carrier. A serving cell may be configured to include two or more downlink component carriers and / or two or more uplink component carriers. Downlink component carriers and uplink component carriers are also collectively referred to as component carriers.
[0019] For a component carrier, one or more SCS-specific carriers A subcarrier-spacing configuration μ may be associated with one SCS-specific carrier.
[0020] The resources in the wireless communication system 9 may be managed by a resource grid using subcarrier indexes and OFDM symbol indexes.
[0021] Subcarrier spacing (SCS) for a certain subcarrier spacing setting μ )Δf is Δf=2 μ For example, the subcarrier spacing setting μ may represent any of 0, 1, 2, 3, or 4.
[0022] Time unit T c =1 / (Δf max N f ) may be used to represent the length in the time domain, where Δf max= 480 kHz. f = 4096. The constant κ may be expressed as κ = Δf max N f / (Δf ref N f,ref )=64. Also, Δf ref may be 15 kHz. f,ref is 2048.
[0023] The downlink / uplink signal transmission is of length T f The system may be organized into radio frames (system frames, frames) of T f =(Δf max N f / 100)·T s =10ms may be acceptable.
[0024] A radio frame may be composed of 10 subframes, where the length of the subframe is T sf =(Δf max N f / 1000)·T s = 1 ms. The number of OFDM symbols per subframe may be N subframe,μ symb =N slot symb N subframe,μ slot may be also possible.
[0025] An OFDM symbol is used as a unit of time domain for the communication method used in the wireless communication system 9. For example, an OFDM symbol may be used as a unit of time domain for CP-OFDM. Also, an OFDM symbol may be used as a unit of time domain for DFT-s-OFDM.
[0026] A slot may consist of multiple OFDM symbols. For example, N consecutive slot symbOne slot may be composed of N OFDM symbols. For example, in the normal CP setting, slot symb In addition, in the setting of the extended CP, N slot symb =12.
[0027] Slots may be indexed in the time domain, e.g., slot index n μ s ranges from 0 to N in the subframe. subframe,μ slot The slot index n may be given in ascending order as integer values in the range -1 to μ s,f ranges from 0 to N in the radio frame. frame,μ slot Integer values in the range -1 through increasing order may be given.
[0028] FIG. 2 is a diagram showing an example of a resource grid configuration according to an embodiment of the present invention. In the resource grid of FIG. 2, the horizontal axis represents the OFDM symbol index l sym and the vertical axis is the subcarrier index k sc The resource grid in Figure 2 is size,μ grid,x N RB sc It contains N subcarriers. subframe,μ symb OFDM symbols, where N size,μ grid,x indicates the bandwidth of the SCS specific carrier. Also, N size,μ grid,x The value is in resource blocks.
[0029] Within the resource grid, subcarrier index k sc and OFDM symbol index l sym The resource identified by the RE element is It is also called the Element.
[0030] A resource block (RB) is N RB sc A resource block includes N consecutive subcarriers. A resource block is a general term for a common resource block, a physical resource block (PRB), and a virtual resource block (VRB). For example, RB sc =12.
[0031] A BWP (BandWidth Part) may be configured as a subset of a resource grid. Here, a BWP configured for a downlink is also called a downlink BWP. A BWP configured for an uplink is also called an uplink BWP.
[0032] An antenna port is defined such that the channel over which a symbol on the antenna port is conveyed can be inferred from the channel over which another symbol on the same antenna port is conveyed. For example, the channel may correspond to a physical channel. Also, the symbols are arranged in resource elements. In this case, the "channel" may mean a "propagation path". Also, the "channel" may mean a "physical channel".
[0033] Two antenna ports are considered to be in a Quasi Co-Located (QCL) relationship when the large scale properties of a channel through which a symbol is transmitted at one antenna port can be estimated from the channel through which a symbol is transmitted at the other antenna port. Here, the large scale properties may include long-range properties of the channel. The large scale properties may include some or all of delay spread, Doppler spread, Doppler shift, average gain, average delay, and spatial Rx parameters. The first antenna port and the second antenna port being QCL with respect to beam parameters may mean that a receiving beam assumed by the receiving side for the first antenna port is the same (or corresponds) as a receiving beam assumed by the receiving side for the second antenna port. The first antenna port and the second antenna port being QCLs in terms of beam parameters may mean that a transmission beam assumed by the receiving side for the first antenna port and a transmission beam assumed by the receiving side for the second antenna port are the same (or correspond to each other). The terminal device 1 may assume that the two antenna ports are QCLs if the large-scale characteristics of a channel through which symbols are transmitted at one antenna port can be estimated from the channel through which symbols are transmitted at another antenna port. The two antenna ports being QCLs may mean that the two antenna ports are assumed to be QCLs.
[0034] Carrier aggregation is the process of aggregating multiple serving The carrier aggregation may be a communication using a cell. Also, the carrier aggregation may be a communication using a plurality of aggregated component carriers. Also, the carrier aggregation may be a communication using a plurality of aggregated downlink component carriers. Also, the carrier aggregation may be a communication using a plurality of aggregated uplink component carriers.
[0035] Fig. 3 is a schematic block diagram showing a configuration example of a base station device 3 according to one aspect of the present embodiment. As shown in Fig. 3, the base station device 3 includes a physical layer processing unit (radio transmission / reception unit) 30 and / or part or all of a higher layer processing unit 34. The physical layer processing unit 30 includes an antenna unit 31, an RF (Radio Frequency) processing unit 32, and part or all of a baseband processing unit 33. The higher layer processing unit 34 includes a media access control layer (MAC layer) processing unit 35, and part or all of a radio resource control (RRC) layer processing unit 36.
[0036] The physical layer processing unit 30 performs physical layer processing. Here, the physical layer processing may include some or all of the following: generation of a baseband signal of a physical channel, generation of a baseband signal of a physical signal, detection of information transmitted by the physical channel, and detection of information transmitted by the physical signal. The physical layer processing may also include mapping processing of a transport channel to a physical channel. Here, the baseband signal is also called a time-continuous signal.
[0037] For example, the physical layer processor 30 may generate a baseband signal of a downlink physical channel, where a transport block delivered from a higher layer on the DL-SCH may be placed on the downlink physical channel.
[0038] For example, the physical layer processing unit 30 may generate a baseband signal of a downlink physical signal.
[0039] For example, the physical layer processor 30 may attempt to detect information transmitted by an uplink physical channel, where a transport block of the information transmitted by the uplink physical channel may be delivered to higher layers on the UL-SCH.
[0040] For example, the physical layer processor 30 may attempt to detect information conveyed by an uplink physical signal.
[0041] The upper layer processing unit 34 is a MAC (Medium Access Control) layer, a packet data integration process, The MAC layer performs some or all of the processing for the Packet Data Convergence Protocol (PDCP) layer, Radio Link Control (RLC) layer, and RRC layer. Here, the MAC layer is also called the MAC sublayer. The PDCP layer is also called the PDCP sublayer. The RLC layer is also called the RLC sublayer. The RRC layer is also called the RRC sublayer.
[0042] The media access control layer processor (MAC layer processor) 35 performs MAC layer processing. The MAC layer processes include mapping between logical channels and transport channels, multiplexing one or more MAC SDUs (Service Data Units) into a transport block, One or more MACs of the transport block delivered by the physical layer on the UL-SCH This may include some or all of the following: decomposition into SDUs, application of Hybrid Automatic Repeat reQuest (HARQ) to transport blocks, and processing of scheduling requests.
[0043] The radio resource control layer processing unit 36 performs processing of the RRC layer. The processing of the RRC layer may include some or all of management of broadcast signals, management of an RRC connection / RRC idle state, and RRC reconfiguration.
[0044] The radio resource control layer processing unit 36 may manage RRC parameters used for various settings of the terminal device 1. For example, the radio resource control layer processing unit 36 may include the RRC parameters in an RRC message on a certain logical channel and transmit the RRC parameters to the terminal device 1. Here, the RRC message may be mapped to any one of a BCCH (Broadcast Control CHannel), a CCCH (Common Control CHannel), and a DCCH (Dedicated Control CHannel).
[0045] The radio resource control layer processing unit 36 may determine RRC parameters to be transmitted to the terminal device 1 based on the RRC parameters included in the RRC message transmitted from the terminal device 1. Here, the RRC message transmitted from the terminal device 1 may be related to a functional information report of the terminal device 1.
[0046] The physical layer processing unit 30 may perform some or all of the modulation processing, the encoding processing, and the transmission processing. The physical layer processing unit 30 may generate a physical signal based on some or all of the encoding processing, the modulation processing, and the baseband signal generation processing for the transport block. The physical layer processing unit 30 may place the physical signal in a certain BWP. The physical layer processing unit 30 may transmit the generated physical signal.
[0047] The physical layer processing unit 30 may perform one or both of demodulation and decoding. The physical layer processing unit 30 may deliver a transport block of information detected based on the demodulation and decoding of the received physical signal to a higher layer on the UL-SCH.
[0048] If carrier sensing is required in the serving cell band, physical layer processing The unit 30 may perform carrier sensing prior to transmitting a physical signal.
[0049] The RF unit 32 converts the signal received via the antenna unit 31 into a baseband signal. The RF unit 32 may convert the signal into a baseband (baseband signal) and remove unnecessary frequency components. The signal is output to the baseband unit 33 .
[0050] The baseband unit 33 may digitize the baseband signal input from the RF unit 32. The baseband unit 33 may remove a portion corresponding to a CP (Cyclic Prefix) from the digitized baseband signal. The baseband unit 33 may perform a Fast Fourier Transform (FFT) on the baseband signal from which the CP has been removed, to extract a signal in the frequency domain.
[0051] The baseband unit 33 may generate a baseband signal by performing an Inverse Fast Fourier Transform (IFFT) on the physical signal. The baseband unit 33 may add a CP to the generated baseband signal. The baseband unit 33 may convert the baseband signal to which the CP has been added into an analog signal. The baseband unit 33 may output the analog baseband signal to the RF unit 32.
[0052] The RF unit 32 may remove unnecessary frequency components from the baseband signal input from the baseband unit 33. The RF unit 32 may up-convert the baseband signal to a carrier frequency to generate an RF signal. The RF unit 32 may transmit the RF signal via the antenna unit 31. The RF unit 32 may also have a function of controlling transmission power.
[0053] For the terminal device 1, one or more serving cells (or component carriers, downlink component carriers, uplink component carriers) may be configured.
[0054] Each of the serving cells configured for the terminal device 1 may be any of a PCell (Primary cell), a PSCell (Primary SCG cell), and a SCell (Secondary Cell).
[0055] The PCell is a serving cell included in a Master Cell Group (MCG). ell executes an initial connection establishment procedure or a connection re-establishment procedure by the terminal device 1. This is the cell where the test is performed (the cell where the test was performed).
[0056] The PSCell is a serving cell included in a secondary cell group (SCG). The PSCell is a serving cell in which the terminal device 1 performs a random access procedure.
[0057] The SCell may be included in either the MCG or the SCG.
[0058] A serving cell group (cell group) is a general term for an MCG, an SCG, and a PUCCH cell group. A serving cell group may include one or more serving cells (or component carriers). One or more serving cells (or component carriers) included in a serving cell group may be operated by carrier aggregation.
[0059] One or more downlink BWPs may be configured for the terminal device 1. One or more uplink BWPs may be configured for each uplink BWP.
[0060] Of one or more downlink BWPs configured for the terminal device 1, one downlink BWP may be set as an active downlink BWP (or one downlink BWP may be activated). Of one or more uplink BWPs configured for the terminal device 1, one uplink BWP may be set as an active uplink BWP (or one uplink BWP may be activated).
[0061] The physical layer processing unit 30 may attempt to transmit the PDSCH, the PDCCH, and the CSI-RS on the active downlink BWP. The physical layer processing unit 10 may attempt to receive the PDSCH, the PDCCH, and the CSI-RS on the active downlink BWP. The physical layer processing unit 30 may attempt to receive the PUCCH and the PUSCH on the active uplink BWP. The physical layer processing unit 10 may attempt to transmit the PUCCH and the PUSCH on the active uplink BWP. Here, the active downlink BWP and the active uplink BWP are collectively referred to as the active BWP.
[0062] The physical layer processing unit 30 may not attempt to transmit the PDSCH, the PDCCH, and the CSI-RS on an inactive downlink BWP (a downlink BWP that is not an active downlink BWP). The physical layer processing unit 10 may not attempt to receive the PDSCH, the PDCCH, and the CSI-RS on an inactive downlink BWP. The physical layer processing unit 30 may not attempt to receive the PUCCH and the PUSCH on an inactive uplink BWP (an uplink BWP that is not an active uplink BWP). The physical layer processing unit 10 may not attempt to transmit the PUCCH and the PUSCH on an inactive uplink BWP. Here, the inactive downlink BWP and the inactive uplink BWP are collectively referred to as the inactive BWP.
[0063] A downlink BWP switch is a procedure for deactivating one active downlink BWP of a serving cell and activating one of the inactive downlink BWPs of the serving cell. The downlink BWP switch may be controlled by any of the physical layer, the MAC layer, and the RRC layer.
[0064] The uplink BWP switching is used to deactivate one active uplink BWP of a serving cell and activate one of the inactive uplink BWPs of the serving cell. The uplink BWP switching may be controlled by any of the physical layer, the MAC layer, and the RRC layer.
[0065] Of one or more downlink BWPs configured for the terminal device 1, two or more downlink BWPs may not be configured as active downlink BWPs. For a certain component carrier, one downlink BWP may be active at a certain time.
[0066] Of one or more uplink BWPs configured for the terminal device 1, two or more uplink BWPs may not be configured as active uplink BWPs. For a certain component carrier, one uplink BWP may be active at a certain time.
[0067] For each downlink component carrier, one downlink BWP may be set as the active BWP. The above downlink BWPs do not have to be set as active downlink BWPs.
[0068] For each uplink component carrier, one uplink BWP may be set as an active uplink BWP, i.e., for a given uplink component carrier, two or more uplink BWPs may not be set as active uplink BWPs.
[0069] Fig. 4 is a schematic block diagram showing a configuration example of a terminal device 1 according to one aspect of the present embodiment. As shown in Fig. 4, the terminal device 1 includes a physical layer processing unit (radio transmission / reception unit) 10 and part or all of an upper layer processing unit 14. The radio transmission / reception unit 10 includes an antenna unit 11, an RF unit 12, and part or all of a baseband unit 13. The upper layer processing unit 14 includes a medium access control layer processing unit 15 and part or all of a radio resource control layer processing unit 16.
[0070] The physical layer processing unit 10 performs processing of the physical layer.
[0071] For example, the physical layer processor 10 may generate a baseband signal of an uplink physical channel, where a transport block delivered from a higher layer on the UL-SCH may be placed on the uplink physical channel.
[0072] For example, the physical layer processing unit 10 may generate a baseband signal of an uplink physical signal.
[0073] For example, the physical layer processing unit 10 may attempt to detect information transmitted by a downlink physical channel, where a transport block of the information transmitted by the downlink physical channel may be delivered to a higher layer on the DL-SCH.
[0074] For example, the physical layer processing unit 10 may attempt to detect information conveyed by a downlink physical signal.
[0075] The upper layer processing unit 14 is a MAC (Medium Access Control) layer, a packet data integration process, It performs some or all of the processing of the Packet Data Convergence Protocol (PDCP) layer, the Radio Link Control (RLC) layer, and the RRC layer.
[0076] A media access control layer processor (MAC layer processor) 15 performs MAC layer processing.
[0077] The radio resource control layer processing unit 16 performs processing for the RRC layer.
[0078] The radio resource control layer processing unit 16 may manage RRC parameters transmitted from the base station device 3. For example, the radio resource control layer processing unit 16 may acquire RRC parameters included in an RRC message on a certain logical channel, and set the acquired RRC parameters in a storage area of the terminal device 1. The RRC parameters set in the storage area of the terminal device 1 may be provided to a lower layer.
[0079] The radio resource control layer processing unit 16 may include function information generated based on the functions of the terminal device 1 in an RRC message and transmit the RRC message to the base station device 3.
[0080] The physical layer processing unit 10 may perform some or all of the modulation process, the encoding process, and the transmission process. The physical layer processing unit 10 may generate a physical signal based on some or all of the encoding process, the modulation process, and the baseband signal generation process for the transport block. The physical layer processing unit 10 may place the physical signal in a certain BWP. The physical layer processing unit 10 may transmit the generated physical signal.
[0081] The physical layer processing unit 10 may perform one or both of demodulation and decoding. The physical layer processing unit 10 may deliver a transport block of information detected based on the demodulation and decoding of the received physical signal to a higher layer on the DL-SCH.
[0082] When carrier sensing is required in the band of the serving cell, the physical layer processing unit 10 may perform carrier sensing prior to transmitting a physical signal.
[0083] The RF unit 12 converts the signal received via the antenna unit 11 into a baseband signal. The RF unit 12 may convert the signal into a baseband (baseband signal) and remove unnecessary frequency components. The signal is output to the baseband unit 13 .
[0084] The baseband unit 13 may digitize the baseband signal input from the RF unit 12. The baseband unit 13 may remove a portion corresponding to a CP (Cyclic Prefix) from the digitized baseband signal. The baseband unit 13 may perform a Fast Fourier Transform (FFT) on the baseband signal from which the CP has been removed, to extract a signal in the frequency domain.
[0085] The baseband unit 13 may generate a baseband signal by performing an Inverse Fast Fourier Transform (IFFT) on the physical signal. The baseband unit 13 may add a CP to the generated baseband signal. The baseband unit 13 may convert the baseband signal to which the CP has been added into an analog signal. The baseband unit 13 may output the analog baseband signal to the RF unit 12.
[0086] The RF unit 12 may remove unnecessary frequency components from the baseband signal input from the baseband unit 13. The RF unit 12 may up-convert the baseband signal to a carrier frequency to generate an RF signal. The RF unit 12 may transmit the RF signal via the antenna unit 31. The RF unit 12 may also have a function of controlling transmission power.
[0087] The physical signals will be explained below.
[0088] The physical signal is a general term for the downlink physical channel, the downlink physical signal, the uplink physical channel, and the uplink physical channel. The physical channel is a general term for the downlink physical channel and the uplink physical channel. The physical signal is a general term for the downlink physical signal and the uplink physical signal.
[0089] The uplink physical channel may correspond to a set of resource elements carrying information generated in a higher layer. The uplink physical channel may be a physical channel used in an uplink component carrier. The uplink physical channel may be transmitted by the physical layer processing unit 10. The uplink physical channel may be received by the physical layer processing unit 30. In the uplink of the wireless communication system according to one aspect of the present embodiment, some or all of the following uplink physical channels may be used. ·PUCCH (Physical Uplink Control CHannel) ·PUSCH (Physical Uplink Shared CHannel) ·PRACH(Physical Random Access CHannel) The PUCCH may be transmitted to deliver, transmit, or convey uplink control information (UCI). The uplink control information may be mapped to the PUCCH. The physical layer processing unit 10 may transmit the PUCCH in which the uplink control information is mapped. The physical layer processing unit 30 may receive the PUCCH in which the uplink control information is mapped.
[0090] Uplink control information (uplink control information bit, uplink control information sequence, uplink control information type) is channel state information (CSI), schedule The SR includes part or all of the Scheduling Request (SR) and HARQ-ACK (Hybrid Automatic Repeat request ACKnowledgement) information.
[0091] The channel state information is also referred to as a channel state information bit or a channel state information sequence. The scheduling request is also referred to as a scheduling request bit or a scheduling request sequence. The HARQ-ACK information is also referred to as a HARQ-ACK information bit or a HARQ-ACK information sequence.
[0092] The HARQ-ACK information may be composed of HARQ-ACK bits corresponding to a transport block (TB). A HARQ-ACK bit may indicate an acknowledgement (ACK) or a negative-acknowledgement (NACK) corresponding to a transport block. An ACK may indicate that the decoding of the transport block has been successfully completed. A NACK may indicate that the decoding of the transport block has not been successfully completed. The HARQ-ACK information may include one or more HARQ-ACK bits.
[0093] The HARQ-ACK for a transport block is also referred to as an HARQ-ACK for a PDSCH, where "HARQ-ACK for a PDSCH" refers to an HARQ-ACK for a transport block included in the PDSCH.
[0094] The scheduling request may be used to request UL-SCH resources for a new transmission. The scheduling request bit may be used to indicate either a positive SR or a negative SR. The scheduling request bit indicating a positive SR is also referred to as a "positive SR is conveyed". A positive SR may indicate that UL-SCH resources are requested by the media access control layer processing unit 15 for the initial transmission. The scheduling request bit indicating a negative SR is also referred to as a "negative SR is transmitted". A negative SR may indicate that UL-SCH resources are not requested by the media access control layer processing unit 15 for the initial transmission.
[0095] The channel state information may include some or all of a Channel Quality Indicator (CQI), a Precoder Matrix Indicator (PMI), and a Rank Indicator (RI). The CQI is an indicator related to the quality of a propagation path (e.g., propagation strength) or the quality of a physical channel, and the PMI is an indicator related to a precoder. The RI is an indicator related to a transmission rank (or the number of transmission layers).
[0096] The channel state information is an indicator regarding the reception state of a physical signal (e.g., CSI-RS) used for channel measurement. The value of the channel state information may be determined by the terminal device 1 based on the reception state assumed by the physical signal used for channel measurement. The channel measurement may include an interference measurement.
[0097] The PUCCH may be accompanied by a certain PUCCH format, where the PUCCH format may be a format of a physical layer processing of the PUCCH, and the PUCCH format may be a format of information conveyed using the PUCCH.
[0098] The PUSCH may be transmitted to transmit one or both of the uplink control information and the transport block. The PUSCH may be used to transmit one or both of the uplink control information and the transport block. The terminal device 1 may transmit the PUSCH in which the uplink control information and one or both of the transport block are arranged. The base station device 3 may receive the PUSCH in which the uplink control information and one or both of the transport block are arranged.
[0099] The PRACH may be transmitted to convey an index of a random access preamble. The terminal device 1 may transmit the PRACH. The base station device 3 may receive the PRACH. The terminal device 1 may transmit the random access preamble on the PRACH. The base station device 3 may receive the random access preamble on the PRACH.
[0100] The uplink physical signal may correspond to a set of resource elements. The uplink physical signal may not be used to transmit information generated in a higher layer. The uplink physical signal may be used to transmit information generated in a physical layer. The uplink physical signal may be a physical signal used in an uplink component carrier. The physical layer processing unit 10 may transmit the uplink physical signal. The physical layer processing unit 30 may receive the uplink physical signal. In the uplink of the wireless communication system according to one aspect of the present embodiment, some or all of the following uplink physical signals may be used. ·UL DMRS(UpLink Demodulation Reference Signal) ·SRS(Sounding Reference Signal) ·UL PTRS(UpLink Phase Tracking Reference Signal) UL DMRS is a general term for DMRS for PUSCH and DMRS for PUCCH.
[0101] A set of antenna ports of a DMRS for a PUSCH (a DMRS related to a PUSCH, a DMRS included in a PUSCH, a DMRS corresponding to a PUSCH) may be given based on a set of antenna ports for the PUSCH. For example, the set of antenna ports of a DMRS for a PUSCH may be the same as the set of antenna ports for the PUSCH.
[0102] The propagation path of the PUSCH may be estimated from the DMRS for the PUSCH.
[0103] The set of antenna ports for DMRS for PUCCH (DMRS related to PUCCH, DMRS included in PUCCH, DMRS corresponding to PUCCH) may be the same as the set of antenna ports for PUCCH.
[0104] The propagation path of the PUCCH may be estimated from the DMRS for the PUCCH.
[0105] The downlink physical channel may correspond to a set of resource elements carrying information generated in a higher layer. The downlink physical channel may be a physical channel used in a downlink component carrier. The physical layer processing unit 30 may transmit the downlink physical channel. The physical layer processing unit 10 may receive the downlink physical channel. In the downlink of the wireless communication system according to one aspect of the present embodiment, some or all of the following downlink physical channels may be used. ·PBCH(Physical Broadcast Channel) ·PDCCH (Physical Downlink Control Channel) ·PDSCH(Physical Downlink Shared Channel) PBCH is a MIB (Master Information Block) and physical layer control information. The MIB may be transmitted to convey either one or both of the following: physical layer control information is information generated at the physical layer. The MIB is transmitted to higher layers on the BCCH (Broadcast Control CHannel). This is an RRC message delivered by
[0106] The PDCCH may be transmitted to convey downlink control information (DCI). The downlink control information may be arranged in the PDCCH. The terminal device 1 may receive the PDCCH in which the downlink control information is arranged. The base station device 3 may transmit the PDCCH in which the downlink control information is arranged.
[0107] The downlink control information may be transmitted with a DCI format. The DCI format may be interpreted as a format of the downlink control information. The DCI format may be interpreted as a set of downlink control information set to a certain format of the downlink control information.
[0108] The base station device 3 may notify the terminal device 1 of the downlink control information by using a PDCCH with a DCI format. Here, the terminal device 1 may monitor the PDCCH to acquire the downlink control information. Unless otherwise specified, the DCI format and the downlink control information may be described as equivalent. For example, the base station device 3 may include the downlink control information in the DCI format and transmit it to the terminal device 1. In addition, the terminal device 1 may control the physical layer processing unit 10 by using the downlink control information included in the detected DCI format.
[0109] DCI format 0_0, DCI format 0_1, DCI format 1_0, and DCI format 1_1 are DCI formats. The uplink DCI format is a general term for DCI format 0_0 and DCI format 0_1. The downlink DCI format is a general term for DCI format 1_0 and DCI format 1_1.
[0110] DCI format 0_0 is used for scheduling a PUSCH arranged in a certain cell. DCI format 0_0 may include some or all of fields 1A to 1E. 1A) Identifier field for DCI formats 1B) Frequency domain resource assignment field field) 1C) Time domain resource assignment field ) 1D) Frequency hopping flag field 1E) MCS field (Modulation and Coding Scheme field) The DCI format specification field may indicate whether the DCI format including the DCI format specification field is an uplink DCI format or a downlink DCI format. That is, the DCI format specification field may be included in each of the uplink DCI format and the downlink DCI format. Here, the DCI format specification field included in the DCI format 0_0 may indicate 0.
[0111] The frequency domain resource allocation field included in the DCI format 0_0 is used to allocate frequency resources for the PUSCH scheduled by the DCI format 0_0. It may be used to indicate the allocation of a service.
[0112] The time domain resource allocation field included in DCI format 0_0 may be used to indicate the allocation of time resources for the PUSCH scheduled by DCI format 0_0.
[0113] The frequency hopping flag field may be used to indicate whether frequency hopping is applied to the PUSCH scheduled by the DCI format 0_0.
[0114] The MCS field included in DCI format 0_0 may be used to indicate one or both of a modulation scheme for a PUSCH scheduled by the DCI format 0_0 and a target coding rate scheduled by the DCI format 0_1. The target coding rate may be a target coding rate for a transport block arranged in a PUSCH. The size of the transport block (TBS) arranged in a PUSCH is determined based on the target coding rate and The modulation scheme for the PUSCH may also be determined in part or in whole.
[0115] DCI format 0_0 may not include fields used for CSI requests.
[0116] DCI format 0_0 may not include a carrier indicator field. That is, a serving cell to which an uplink component carrier in which a PUSCH scheduled by DCI format 0_0 is arranged may be the same as a serving cell of a downlink component carrier in which a PDCCH including the DCI format 0_0 is arranged. The terminal device 1 may recognize that a PUSCH scheduled by the DCI format 0_0 is arranged in an uplink component carrier of a serving cell based on detecting DCI format 0_0 in a downlink component carrier of the serving cell.
[0117] The DCI format 0_0 may not include a BWP field. Here, the DCI format 0_0 may be a DCI format for scheduling a PUSCH without changing an active uplink BWP. The terminal device 1 may recognize that the PUSCH is to be transmitted without switching the active uplink BWP based on detecting the DCI format 0_0 used for scheduling the PUSCH.
[0118] DCI format 0_1 is used for scheduling a PUSCH allocated to a certain cell. DCI format 0_1 includes some or all of fields 2A to 2H. 2A) DCI format specific fields 2B) Frequency domain resource allocation field 2C) Uplink time domain resource allocation field 2D) Frequency hopping flag field 2E) MCS Field 2F) CSI request field 2G) BWP field 2H) Carrier indicator field The DCI format specific field included in DCI format 0_1 may indicate 0.
[0119] The frequency domain resource allocation field included in DCI format 0_1 may be used to indicate the allocation of frequency resources for the PUSCH scheduled by DCI format 0_1.
[0120] The time domain resource allocation field included in DCI format 0_1 may be used to indicate the allocation of time resources for the PUSCH scheduled by DCI format 0_1.
[0121] The MCS field included in DCI format 0_1 may be used to indicate one or both of a modulation scheme for a PUSCH scheduled by DCI format 0_1 and a target coding rate for a PUSCH scheduled by DCI format 0_1.
[0122] The BWP field of the DCI format 0_1 may be used to indicate an uplink BWP in which a PUSCH scheduled by the DCI format 0_1 is arranged. That is, the DCI format 0_1 may or may not involve a change in the active uplink BWP. The terminal device 1 may recognize the uplink BWP in which the PUSCH is arranged based on detecting the DCI format 0_1 used for scheduling the PUSCH.
[0123] The DCI format 0_1 that does not include a BWP field may be a DCI format that schedules a PUSCH without changing an active uplink BWP. The terminal device 1 may recognize that the PUSCH is transmitted without switching the active uplink BWP based on detecting the DCI format 0_1 that is used for scheduling a PUSCH and does not include a BWP field.
[0124] If the DCI format 0_1 includes a BWP field, but the terminal device 1 does not support the function of switching the BWP by the DCI format 0_1, the BWP field may be ignored by the terminal device 1. That is, the terminal device 1 that does not support the function of switching the BWP may recognize that the PUSCH is transmitted without switching the active uplink BWP based on detecting the DCI format 0_1 that is used for scheduling the PUSCH and includes the BWP field. Here, if the function of switching the BWP is supported, the radio resource control layer processing unit 16 may include function information indicating that the function of switching the BWP is supported in the RRC message.
[0125] The CSI request field may be used to indicate reporting of CSI.
[0126] When the DCI format 0_1 includes a carrier indicator field, the carrier indicator field may be used to indicate a serving cell of an uplink component carrier in which a PUSCH is arranged. The terminal device 1 may recognize, based on detecting the DCI format 0_1 in the downlink component carrier of a serving cell, that a PUSCH scheduled by the DCI format 0_1 is arranged in the uplink component carrier of the serving cell indicated by the carrier indicator field included in the DCI format 0_1.
[0127] If DCI format 0_1 does not include the carrier indicator field, A serving cell to which an uplink component carrier on which a PUSCH scheduled by the CI format 0_1 is arranged may be the same as a serving cell of a downlink component carrier on which a PDCCH including the DCI format 0_1 is arranged. The terminal device 1 may recognize that a PUSCH scheduled by the DCI format 0_1 is arranged on an uplink component carrier of a serving cell based on detecting DCI format 0_1 in a downlink component carrier of the serving cell.
[0128] DCI format 1_0 is used for scheduling a PDSCH allocated to a certain cell. DCI format 1_0 includes some or all of 3A to 3F. 3A) DCI format specific fields 3B) Frequency domain resource allocation field 3C) Time Domain Resource Allocation Field 3D) MCS field 3E) PDSCH_HARQ feedback timing indicator field 3F) PUCCH resource indicator field The DCI format specific field included in DCI format 1_0 may indicate 1.
[0129] The frequency domain resource allocation field included in DCI format 1_0 may be used to indicate the allocation of frequency resources for the PDSCH scheduled by that DCI format.
[0130] The time domain resource allocation field included in DCI format 1_0 may be used to indicate the allocation of time resources for the PDSCH scheduled by that DCI format.
[0131] The MCS field included in DCI format 1_0 may be used to indicate one or both of a modulation scheme for a PDSCH scheduled by the DCI format and a target coding rate for a PDSCH scheduled by the DCI format. The target coding rate may be a target coding rate for a transport block arranged in the PDSCH. The size of the transport block (TBS) arranged in the PDSCH may be a target coding rate. The rate may be determined based on one or both of the modulation scheme for the PDSCH.
[0132] The PDSCH_HARQ feedback timing indication field may be used to indicate an offset from the slot containing the last OFDM symbol of the PDSCH to the slot containing the first OFDM symbol of the PUCCH.
[0133] The PUCCH resource indication field may be used to indicate the resource of the PUCCH.
[0134] DCI format 1_0 may not include a carrier indicator field. That is, 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 the DCI format 1_0 is arranged. The terminal device 1 may recognize that a PDSCH scheduled by the DCI format 1_0 is arranged on a downlink component carrier based on detecting DCI format 1_0 in the downlink component carrier.
[0135] The DCI format 1_0 may not include a BWP field. Here, the DCI format 1_0 may be a DCI format for scheduling a PDSCH without changing an active downlink BWP. The terminal device 1 may recognize that the PDSCH is to be received without switching the active downlink BWP based on detecting the DCI format 1_0 used for scheduling the PDSCH.
[0136] DCI format 1_1 is used for scheduling a PDSCH arranged in a certain cell. DCI format 1_1 includes some or all of 4A to 4I. 4A) DCI format specific fields 4B) Frequency domain resource allocation field 4C) Time Domain Resource Allocation Field 4E) MCS Field 4F) PDSCH_HARQ feedback timing indication field 4G) PUCCH resource indication field 4H) BWP Field 4I) Career Indicator Field The DCI format specific field included in DCI format 1_1 may indicate 1.
[0137] The frequency domain resource allocation field included in DCI format 1_1 may be used to indicate the allocation of frequency resources for the PDSCH scheduled by DCI format 1_1.
[0138] The time domain resource allocation field included in DCI format 1_1 may be used to indicate the allocation of time resources for the PDSCH scheduled by DCI format 1_1.
[0139] The MCS field included in DCI format 1_1 may be used to indicate one or both of a modulation scheme for a PDSCH scheduled by DCI format 1_1 and a target coding rate for a PDSCH scheduled by DCI format 1_1.
[0140] If DCI format 1_1 includes a PDSCH_HARQ feedback timing indication field, the PDSCH_HARQ feedback timing indication field may be used to indicate an offset from a slot including the last OFDM symbol of the PDSCH to a slot including the first OFDM symbol of the PUCCH. If DCI format 1_1 does not include a PDSCH_HARQ feedback timing indication field, a parameter indicating an offset from a slot including the last OFDM symbol of the PDSCH to a slot including the first OFDM symbol of the PUCCH may be provided by the RRC layer.
[0141] The PUCCH resource indication field may be used to indicate the resource of the PUCCH.
[0142] The BWP field of DCI format 1_1 is used to indicate a downlink BWP in which a PDSCH scheduled by the DCI format 1_1 is arranged. That is, the DCI format 1_1 may or may not involve a change in the active downlink BWP. The terminal device 1 may recognize the downlink BWP in which the PDSCH is arranged based on detecting the DCI format 1_1 used for scheduling the PDSCH.
[0143] The DCI format 1_1 that does not include a BWP field may be a DCI format that schedules a PDSCH without changing an active downlink BWP. The terminal device 1 may recognize that the PDSCH is received without switching the active downlink BWP based on detecting the DCI format 1_1 that is used for scheduling a PDSCH and does not include a BWP field.
[0144] If the DCI format 1_1 includes a BWP field, but the terminal device 1 does not support the function of switching the BWP by the DCI format 1_1, the BWP field may be ignored by the terminal device 1. That is, the terminal device 1 that does not support the function of switching the BWP may recognize that the PDSCH is received without switching the active downlink BWP based on detecting the DCI format 1_1 that is used for scheduling the PDSCH and includes the BWP field. Here, if the function of switching the BWP is supported, the radio resource control layer processing unit 16 may include function information indicating that the function of switching the BWP is supported in the RRC message.
[0145] When a carrier indicator field is included in DCI format 1_1, the carrier indicator field may be used to indicate a serving cell of a downlink component carrier on which a PDSCH scheduled by the DCI format 1_1 is arranged. Based on detecting DCI format 1_1 in a downlink component carrier of a serving cell, the terminal device 1 may recognize that a PDSCH scheduled by the DCI format 1_1 is arranged on a downlink component carrier of a serving cell indicated by the carrier indicator field included in the DCI format 1_1.
[0146] When DCI format 1_1 does not include a carrier indicator field, a downlink component carrier on which a PDSCH scheduled by DCI format 1_1 is arranged may be the same as a downlink component carrier on which a PDCCH including the DCI format 1_1 is arranged. Based on detecting DCI format 1_1 in a certain downlink component carrier, the terminal device 1 may recognize that a PDSCH scheduled by the DCI format 1_1 is arranged on the downlink component carrier.
[0147] The PDSCH may be transmitted to transmit the transport block. The PDSCH may be used to transmit the transport block. The transport block may be arranged in the PDSCH. The base station device 3 may transmit the PDSCH in which the transport block is arranged. The terminal device 1 may receive the PDSCH in which the transport block is arranged.
[0148] The downlink physical signal may correspond to a set of resource elements. The downlink physical signal may not be used to convey information generated in a higher layer. The downlink physical signal may be used to convey information generated in a physical layer. The downlink physical signal may be a physical signal used in a downlink component carrier. The physical layer processing unit 10 may transmit the downlink physical signal. The physical layer processing unit 30 may receive a downlink physical signal. In the downlink of the wireless communication system according to one aspect of the present embodiment, at least some or all of the following downlink physical signals may be used. ·Synchronization signal (SS) ·DL DMRS(DownLink DeModulation Reference Signal) ·CSI-RS(Channel State Information-Reference Signal) ·DL PTRS(DownLink Phase Tracking Reference Signal) The synchronization signal may be used by the terminal device 1 to synchronize one or both of the frequency domain and the time domain of the downlink. The synchronization signal is a general term for a primary synchronization signal (PSS) and a secondary synchronization signal (SSS).
[0149] The antenna ports for the PSS, SSS, PBCH, and DMRS for the PBCH may be the same.
[0150] The PBCH on which a PBCH symbol is transmitted at a certain antenna port may be estimated by the DMRS for the PBCH that is placed in the slot to which the PBCH is mapped and is included in the SS / PBCH block to which the PBCH is included.
[0151] DL DMRS is a general term for DMRS for PBCH, DMRS for PDSCH, and DMRS for PDCCH.
[0152] A set of antenna ports of a DMRS for a PDSCH (DMRS related to a PDSCH, DMRS included in a PDSCH, DMRS corresponding to a PDSCH) may be given based on a set of antenna ports for the PDSCH. For example, the set of antenna ports of a DMRS for a PDSCH may be the same as the set of antenna ports for the PDSCH.
[0153] A propagation path of a PDSCH may be estimated from a DMRS for the PDSCH. If a set of resource elements on which a symbol of a certain PDSCH is transmitted and a set of resource elements on which a symbol of a DMRS for the certain PDSCH is transmitted are included in the same precoding resource group (PRG), the PDSCH on which a symbol of the PDSCH in a certain antenna port is transmitted may be estimated by the DMRS for the PDSCH.
[0154] The antenna port of the DMRS for the PDCCH (DMRS related to the PDCCH, DMRS included in the PDCCH, DMRS corresponding to the PDCCH) may be the same as the antenna port for the PDCCH.
[0155] A propagation path of a PDCCH may be estimated from a DMRS for the PDCCH. If the same precoder is applied (is assumed to be applied, is assumed to be applied) to a set of resource elements on which a symbol of a certain PDCCH is transmitted and a set of resource elements on which a symbol of a DMRS for the certain PDCCH is transmitted, a PDCCH on which a symbol of the PDCCH in a certain antenna port is transmitted may be estimated by the DMRS for the PDCCH.
[0156] The BCH (Broadcast CHannel), the UL-SCH (Uplink-Shared CHannel), and the DL-SCH (Downlink-Shared CHannel) are transport channels.
[0157] The BCH of the transport layer may be mapped to the PBCH of the physical layer. A transport block delivered from a higher layer on the BCH of the transport layer may be placed on the PBCH of the physical layer. Also, the UL-SCH of the transport layer may be mapped to the PUSCH of the physical layer. That is, a transport block delivered from a higher layer on the UL-SCH of the transport layer may be placed on the PUSCH of the physical layer. Also, the DL-SCH of the transport layer may be mapped to the PDSCH of the physical layer. That is, a transport block delivered from a higher layer on the DL-SCH of the transport layer may be placed on the PDSCH of the physical layer.
[0158] The transport layer may apply Hybrid Automatic Repeat reQuest (HARQ) to the transport block.
[0159] BCCH (Broadcast Control CHannel), CCCH (Common Control CHannel), And DCCH (Dedicated Control CHannel) is a logical channel. For example, The BCCH may be used to deliver an RRC message including an MIB or an RRC message including system information. The CCCH may be used to transmit an RRC message including an RRC parameter common to a plurality of terminal devices 1. Here, the CCCH may be used, for example, for terminal devices 1 that are not RRC-connected. The DCCH may be used to transmit an RRC message dedicated to a certain terminal device 1. Here, the DCCH may be used, for example, for terminal devices 1 that are RRC-connected.
[0160] The RRC parameters common to a plurality of terminal devices 1 are also referred to as common RRC parameters. Here, the common RRC parameters may be defined as parameters specific to a serving cell. Here, the parameters specific to a serving cell may be parameters common to terminal devices (e.g., terminal devices 1-A, B, and C) in which the serving cell is set.
[0161] For example, the common RRC parameters may be included in an RRC message delivered on the BCCH. For example, the common RRC parameters may be included in an RRC message delivered on the DCCH.
[0162] Among certain RRC parameters, RRC parameters different from common RRC parameters are also called dedicated RRC parameters. Here, the dedicated RRC parameters can provide dedicated RRC parameters to the terminal device 1-A in which the serving cell is set. In other words, the dedicated RRC parameters are RRC parameters that can provide unique settings for each of the terminal devices 1-A, 1-B, and 1-C.
[0163] The BCCH may be mapped to the BCH or DL-SCH. That is, an RRC message including MIB information may be delivered to the BCH. An RRC message including system information other than MIB may be delivered to the DL-SCH. The CCCH may be mapped to the DL-SCH or UL-SCH. That is, an RRC message mapped to the CCCH may be delivered to the DL-SCH or UL-SCH. The DCCH may be mapped to the DL-SCH or UL-SCH. That is, an RRC message mapped to the DCCH may be delivered to the DL-SCH or UL-SCH.
[0164] FIG. 5 is a diagram showing an example of a procedure for transmitting a PUSCH between the terminal device 1 and the base station device 3 according to one aspect of the present embodiment. As shown in FIG. 5, the radio resource control layer processing unit 36 and the radio resource control layer processing unit 16 exchange RRC messages. Also, the media access control layer processing unit 35 and the media access control layer processing unit 15 exchange MAC CE. Moreover, the physical layer processing unit 30 notifies the physical layer processing unit 10 of the DCI format.
[0165] The physical layer processor 10 interprets the received DCI format and delivers a part of the information obtained based on the interpretation to the media access control layer processor 15. Here, the part of the information obtained based on the interpretation is also referred to as HARQ information. For example, the HARQ information may include at least one or both of an HARQ process index (HPN: HARQ Process Index) and a new data indicator (NDI: New Data Indicator). Here, when the received DCI format schedules the transmission of a PUSCH, the DCI format corresponds to an uplink grant.
[0166] In some cases, the DCI format may be replaced by a random access response grant. For example, the random access response grant may be used in scheduling the initial transmission of a message 3 PUSCH in a random access procedure. Here, a PUSCH scheduled by a random access response grant in a 4-step contention-based random-access procedure is classified as a message 3 PUSCH. Also, a PUSCH scheduled by a DCI format with a CRC sequence scrambled by a TC-RNTI in a 4-step contention-based random-access procedure is classified as a message 3 PUSCH. Also, a PUSCH scheduled by a random access response grant in a contention-free random-access procedure is not classified as a message 3 PUSCH.
[0167] Here, in the two-step collision-based random access procedure, a PUSCH scheduled by a fallback random access response grant is classified as a fallback message 3 PUSCH. Also, in the two-step collision-based random access procedure, a PUSCH scheduled by a DCI format with a CRC sequence scrambled by a TC-RNTI is classified as a fallback message 3 PUSCH.
[0168] Next, the media access control layer processing unit 15 issues a transmission instruction to the physical layer processing unit 10 based on the uplink grant. Here, for the transmission instruction, the media access control layer processing unit 15 may further refer to RRC parameters provided by the radio resource control layer processing unit 16.
[0169] Next, the physical layer processing unit 10 transmits the PUSCH based on a transmission instruction issued by the media access control layer processing unit 15. Here, in order to transmit the PUSCH, the physical layer processing unit 10 may further refer to RRC parameters provided by the radio resource control layer processing unit 16.
[0170] Here, the RRC parameters that the radio resource control layer processing unit 16 provides to the media access control layer processing unit 15 or the physical layer processing unit 10 may be parameters managed by the radio resource control layer processing unit 16 based on an RRC message transmitted from the radio resource control layer processing unit 36.
[0171] Here, the radio resource control layer processing unit 36 may transmit an RRC parameter for determining a method for determining a transmission opportunity for the PUSCH to the radio resource control layer processing unit 16 by including the RRC parameter in an RRC message.
[0172] FIG. 6 illustrates a frame structure in a TDD mode of a cell 6000 according to an embodiment of the present invention. 6 is a diagram showing an example. In Fig. 6, the horizontal axis indicates the time domain, and the vertical axis indicates the frequency domain. Here, 6001 indicates the frequency band of the BWP set in the cell 6000. Here, the BWP 6100 indicates a pair consisting of a downlink BWP 6100a and an uplink BWP 6100b. That is, in FIG. 6, the frequency bandwidth of the downlink BWP 6100a and the frequency bandwidth of the uplink BWP 6100b are equal, and the frequency position of the downlink BWP 6100a and the frequency position of the uplink BWP 6100b are equal. In this way, for a first frequency band and a second frequency band, the frequency bandwidth of the first frequency band and the frequency bandwidth of the second frequency band are equal, and the frequency position of the first frequency band and the frequency position of the second frequency band are equal, which is also referred to as "the first frequency band and the second frequency band are equal". That is, in FIG. 6, the frequency band of the downlink BWP 6100a is equal to the frequency bandwidth of the uplink BWP 6100b. Equal to the wavenumber band.
[0173] The frequency position of a first band being equal to the frequency position of a second band means that the frequency position of the start of the first frequency band is equal to the frequency position of the start of the second frequency band, and that the frequency position of the end of the first frequency band is equal to the frequency position of the end of the second frequency band.
[0174] In FIG. 6, 6001 indicates a downlink area.
[0175] In FIG. 6, 6002 indicates a flexible area.
[0176] In FIG. 6, 6003 indicates an uplink area.
[0177] A pattern including the downlink region 6001, the flexible region 6002, and the uplink region 6003 is called a TDD pattern. 6010 is the periphery of the TDD pattern. Indicates the period.
[0178] 6101 is a BWP set for the first type terminal device 1. Here, the BWP 6100 may be recognized by the first type terminal device 1 and the second type terminal device 1.
[0179] For example, in a certain frequency band, the requirement for the number of antennas to be implemented in a first type of terminal device 1 is set lower than that in a second type of terminal device 1. For example, in a certain frequency band, the requirement for the number of antennas to be implemented in a first type of terminal device 1 may be two, and the requirement for the number of antennas to be implemented in a second type of terminal device 1 may be four.
[0180] For example, in a certain frequency band, a first set of frequency bandwidths that a first type of terminal device 1 should support may be a subset of the first set, and a second set of frequency bandwidths that a second type of terminal device 1 should support may be a subset of the first set. For example, in a certain frequency band, a first set of frequency bandwidths that a first type of terminal device 1 should support may be 5 MHz, 20 MHz, 40 MHz, and 100 MHz, and a second set of frequency bandwidths that a second type of terminal device 1 should support may be 5 MHz and 20 MHz.
[0181] For example, in a certain frequency band, the maximum value of the frequency bandwidth that the first type terminal device 1 should support may be smaller than the maximum value of the frequency bandwidth that the second type terminal device 1 should support. For example, in a certain frequency band, the maximum value of the frequency bandwidth that the first type terminal device 1 should support is 20 MHz, and The maximum frequency bandwidth that device 1 should support may be 100 MHz.
[0182] In this way, different types of terminal devices 1 may coexist in a serving cell. For example, the terminal device 1A and the terminal device 1B may be a first type of terminal device 1, and the terminal device 1C may be a second type of terminal device 1.
[0183] For example, the terminal device 1 may report the type to which the terminal device 1 itself belongs to the base station device 3 in a random access procedure. For example, the terminal device 1 may report the type to which the terminal device 1 itself belongs through the transmission of a PRACH. For example, the terminal device 1 may determine the resource of the PRACH to be transmitted according to the type to which the terminal device 1 itself belongs. The base station device 3 may determine the type to which the terminal device 1 that transmitted the PRACH belongs according to the resource for detecting the PRACH.
[0184] For example, the terminal device 1 may report the type to which the terminal device 1 itself belongs through the transmission of the message 3. For example, the terminal device 1 may set the value of a bit included in the message 3 according to the type to which the terminal device 1 itself belongs.
[0185] As an example of a random access procedure for the terminal device 1 in the cell 6000, steps 1 to 3 will be described.
[0186] Step 1: A first type terminal device 1 attempts to detect a cell-defining SS / PBCH block in a cell 6000.
[0187] In step 1, the cell-defined SS / PBCH block may have a function of providing resources used for monitoring a PDCCH including the scheduling information of SIB1 among system information left in the cell 6000. Here, the resources used for monitoring a PDCCH including the scheduling information of SIB1 may be provided by a combination of a control resource set of index 0 and a search space set of index 0. Alternatively, the resources used for monitoring a PDCCH including the scheduling information of SIB1 may be a search space set of index 0.
[0188] Step 2: After step 1, the first type terminal device 1 attempts to acquire the SIB1. Here, the SIB1 may include information on the frequency band of the BWP6100 and information on the frequency band of the BWP6101.
[0189] Step 3: The first type terminal device 1 determines which BWP to refer to for configuration within the terminal device 1.
[0190] For example, the first type terminal device 1 may determine which BWP to refer to for configuration within the terminal device 1 based on whether or not the terminal device 1 supports the frequency bandwidth of the BWP6100. For example, if the first type terminal device 1 supports the frequency bandwidth of the BWP6100, the BWP6100 may be referenced for configuration within the terminal device 1. Also, if the first type terminal device 1 does not support the frequency bandwidth of the BWP6100, the BWP6101 may be referenced for configuration within the terminal device 1.
[0191] On the other hand, the second type terminal device 1 may be considered to be prohibited from connecting to the cell 6000 based on whether or not it supports the frequency bandwidth of the BWP 6100. For example, if the second type terminal device 1 supports the frequency bandwidth of the BWP 6100, the BWP 6100 may be referenced for configuration within the terminal device 1. Also, if the second type terminal device 1 does not support the frequency bandwidth of the BWP 6100, the terminal device 1 may not be allowed to connect to the cell 6000. may be considered prohibited.
[0192] Here, referring to a certain BWP for the setting in the terminal device 1 may mean applying some or all of the settings of the antenna unit 11, the RF unit 12, and the baseband unit 13 in the terminal device 1 based on the frequency bandwidth of the certain BWP. For example, Applying the setting of the antenna unit 11 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the antenna unit 11 so that it can receive a signal in the frequency bandwidth of the certain BWP. For example, applying the setting of the RF unit 12 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the RF unit 12 so that it can receive a signal in the frequency bandwidth of the certain BWP. For example, applying the setting of the baseband unit 13 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the baseband unit 13 so that it can receive a signal in the frequency bandwidth of the certain BWP.
[0193] After step 3, the terminal device 1 performs channel transmission / reception by referring to the RRC parameters related to the BWP selected in step 3. Here, if a cell-defined SS / PBCH block is placed outside the frequency band of the BWP 6101, the terminal device 1 that selected the BWP 6101 in step 3 cannot transmit the cell-defined SS / PBCH block.
[0194] Here, the non-cell defining SS / PBCH block is The non-cell-defined SS / PBCH blocks may be installed in the cell 6000. The non-cell-defined SS / PBCH blocks may be included in the frequency band of the BWP 6101.
[0195] Fig. 7 is a diagram showing an example of the configuration of an SS / PBCH block of a cell 6000 according to one aspect of this embodiment. In Fig. 7, the horizontal axis indicates the time domain, and the vertical axis indicates the frequency domain. Also, 7000 indicates a set of SS / PBCH blocks. Here, set 7000 is a general term for sets 7000a, 7000b, and 7000c. 7100 indicates , indicates the transmission periodicity of the set 7000. For example, 7100 may be 5 ms or 20 ms. For example, the value of the transmission periodicity 7100 may be provided by an RRC parameter. For example, the value of the transmission periodicity 7100 may be provided by an RRC parameter related to the BWP 6100. For example, the value of the transmission periodicity 7100 may be provided by an RRC parameter used to configure the BWP 6100.
[0196] In FIG. 7, 7001 indicates a set of SS / PBCH blocks. Here, set 7001 is a general term for set 7001a and set 7001b. 7101 indicates 7101 indicates a transmission periodicity of the set 7001. For example, 7101 may be 20 ms, 40 ms, 80 ms, or 160 ms. Thus, the value of the transmission periodicity 7101 may be greater than the value of the transmission periodicity 7100. Alternatively, the value of the transmission periodicity 7101 may be equal to the value of the transmission periodicity 7100. For example, the value of the transmission periodicity 7101 may be provided by an RRC parameter different from the RRC parameter used to provide the value of the transmission periodicity 7100. For example, the value of the transmission periodicity 7101 may be provided by an RRC parameter related to the BWP6101. For example, the value of the transmission periodicity 7101 may be provided by an RRC parameter used to configure the BWP6101.
[0197] Set 7000 includes eight SS / PBCH block candidates, each of which is assigned a candidate index from 0 to 7 in ascending order on the time axis. Here, the SS / PBCH block candidates may correspond to time-frequency resources used for transmitting the SS / PBCH blocks. For example, the SS / PBCH block with index n may be transmitted in a resource corresponding to the SS / PBCH block candidate with index n. For example, the SS / PBCH block with index n may be transmitted in a resource corresponding to the SS / PBCH block candidate with index n. In the resource corresponding to the block candidate, an SS / PBCH block with index mod(n,Q) may be transmitted, where Q is a value provided by the RRC parameter.
[0198] In the following, for simplicity of explanation, it is assumed that the SS / PBCH block with index n is transmitted in the resource corresponding to the SS / PBCH block candidate with index n.
[0199] Here, first information may be provided for the set 7000. For example, the first information may provide a set of indexes of SS / PBCH blocks transmitted in the set 7000. In FIG. 7, the first information indicates index 1, index 4, and index 6. In FIG. 7, the first information indicates that SS / PBCH blocks are transmitted in resources corresponding to SS / PBCH block candidates corresponding to black blocks among the eight blocks included in the set 7000. Also, in FIG. 7, the first information indicates that SS / PBCH blocks are not transmitted in resources corresponding to SS / PBCH block candidates corresponding to white blocks among the eight blocks included in the set 7000. For example, the first information may be provided by RRC parameters. For example, the first information may be provided by RRC parameters related to the BWP6100. For example, the first information may be provided by RRC parameters used for configuring the BWP6100.
[0200] Also, second information may be provided for the set 7001. For example, the second information may provide a set of indexes of SS / PBCH blocks transmitted in the set 7001. In FIG. 7, the second information indicates index 0, index 3, index 6, and index 7. In FIG. 7, the second information indicates that SS / PBCH blocks are transmitted in resources corresponding to SS / PBCH block candidates corresponding to black blocks among the eight blocks included in the set 7001. Also, in FIG. 7, the second information indicates that SS / PBCH blocks are not transmitted in resources corresponding to SS / PBCH block candidates corresponding to white blocks among the eight blocks included in the set 7001. For example, the second information may be provided by RRC parameters different from the RRC parameters used to provide the first information. For example, the second information may be provided by RRC parameters related to the BWP6101. For example, the second information may be provided by RRC parameters used to configure the BWP6101.
[0201] In FIG. 7, set 7000 may be used to transmit cell-defined SS / PBCH blocks. Also, the frequency band of Set 7000 is set to be included in BWP6100. In addition, the frequency band of Set 7000 is set so as not to be included in the band of BWP6101. Here, the frequency band of set 7000 is the SS / PBCH included in set 7000. A frequency band is defined as a frequency band of a block candidate. Here, a frequency band is included in another frequency band if 1) the frequency position of the start of the frequency band is not lower than the frequency position of the start of the other frequency band, and 2) the frequency position of the end of the frequency band is not higher than the frequency position of the end of the other frequency band. Also, a frequency band is not included in another frequency band if 1) the frequency position of the start of the frequency band is lower than the frequency position of the start of the other frequency band, or 2) the frequency position of the end of the frequency band is higher than the frequency position of the end of the other frequency band.
[0202] In FIG. 7, set 7001 may be used to transmit non-cell defined SS / PBCH blocks. In addition, the frequency band of the set 7001 is set to be included in the frequency band of the BWP6101. In FIG. 7, the frequency band of the BWP6101 is set to be included in the frequency band of the BWP6100. It may or may not be included in the wavenumber band.
[0203] In the configuration shown in FIG. 7, the first type terminal device 1 receives the cell-defined SS / PBCH Alternatively, the first SS / PBCH block may not be monitored, and non-cell-defined SS / PBCH blocks may be monitored. The terminal device 1 of the type 1 determines whether the cell 6 For example, the first type terminal device 1 may perform radio link monitoring (RLM) of the cell 6000. It is not necessary to use the cell-defined SS / PBCH block for Radio Link Monitoring.
[0204] The first type terminal device 1 refers to the SS / PBCH block index to determine the transmission configuration indicator state of the PDSCH, where for the first type terminal device 1, the SS / PBCH block index may correspond to a non-cell-defined SS / PBCH block.
[0205] On the other hand, if the transmission of the uplink channel scheduled by the first type terminal device 1 collides with the transmission of the cell-defined SS / PBCH block, the transmission of the uplink channel is stopped. This is because there is a risk that the transmission of the uplink channel may deteriorate the quality of reception of the cell definition SS / PBCH block by the second type terminal device 1.
[0206] In view of the above, the present application provides a terminal device 1 equipped with a suitable method for transmitting an uplink channel.
[0207] FIG. 8 is a diagram showing an example of transmission of an uplink channel according to one aspect of the present embodiment. In FIG. 8, 8000, 8001, 8002, and 8003 are uplink channels. Here, the uplink channel 8000 collides with the transmission of a cell-defined SS / PBCH block with index 1 and the transmission of a non-cell-defined SS / PBCH block with index 0. When the first type terminal device 1 transmits the uplink channel 8000, the transmission of the uplink channel 8000 may be dropped based on the fact that the uplink channel 8000 collides with the transmission of a cell-defined SS / PBCH block or the transmission of a non-cell-defined SS / PBCH block. Here, the collision between a certain channel and another channel indicates that at least one of the sets of OFDM symbols constituting the certain channel is the same as at least one of the sets of OFDM symbols constituting the other channel.
[0208] 8, the uplink channel 8001 collides with the transmission of a cell-defined SS / PBCH block with index 7. Here, when the first type terminal device 1 transmits the uplink channel 8001, the transmission of the uplink channel 8001 may be dropped based on the fact that the uplink channel 8001 collides with the transmission of a non-cell-defined SS / PBCH block.
[0209] 8, the uplink channel 8002 does not collide with any SS / PBCH block transmission. Here, the first type terminal device 1 may transmit the uplink channel 8002.
[0210] 8, the uplink channel 8003 collides with the transmission of the cell-defined SS / PBCH block of index 4. Here, the first type terminal device 1 may drop the transmission of the uplink channel 8003 based on the fact that the uplink channel 8003 collides with the transmission of the cell-defined SS / PBCH block.
[0211] That is, the first type terminal device 1 may determine whether to drop the transmission of the uplink channel based on the first information and the second information. For example, the first type terminal device 1 may determine whether to drop the transmission of the uplink channel based on the presence or absence of the transmission of the cell definition SS / PBCH block provided by the first information and the presence or absence of the transmission of the cell definition SS / PBCH block provided by the second information.
[0212] On the other hand, the second type of terminal device 1 may be further divided into two subtypes, which are referred to as a 2A type terminal device 1 and a 2B type terminal device 1.
[0213] For example, a type 2A terminal device 1 may be a terminal device 1 that does not recognize that non-cell defined SS / PBCH blocks are transmitted in cell 6000, and a type 2B terminal device 1 may be a terminal device 1 that recognizes that non-cell defined SS / PBCH blocks are transmitted in cell 6000.
[0214] For example, the 2A type terminal device 1 may be a terminal device 1 that does not recognize the second information, and the 2B type terminal device 1 may be a terminal device 1 that recognizes the second information.
[0215] For example, when a type 2A terminal device 1 transmits an uplink channel 8000, the transmission of the uplink channel 8000 may be dropped based on the fact that the uplink channel 8000 collides with the transmission of a cell-defined SS / PBCH block.
[0216] For example, when a type 2A terminal device 1 transmits an uplink channel 8001, the transmission of the uplink channel 8001 does not need to be dropped based on the fact that the uplink channel 8001 does not collide with the transmission of a cell-defined SS / PBCH block.
[0217] For example, when a type 2A terminal device 1 transmits an uplink channel 8002, the transmission of the uplink channel 8002 does not need to be dropped based on the fact that the uplink channel 8002 does not collide with the transmission of a cell-defined SS / PBCH block.
[0218] For example, when a type 2A terminal device 1 transmits an uplink channel 8003, the transmission of the uplink channel 8003 may be dropped based on the fact that the uplink channel 8003 collides with the transmission of a cell-defined SS / PBCH block.
[0219] That is, the terminal device 1 of the 2A type determines the uplink channel based on the first information. For example, the terminal device 1 of type 2A may determine whether to drop the transmission of The second A may determine whether to drop the transmission of the uplink channel based on the presence or absence of the transmission of the cell definition SS / PBCH block provided by the first information. The terminal device 1 of the type does not need to recognize the second information.
[0220] For example, when the terminal device 1 of type 2B transmits the uplink channel 8001, The transmission of uplink channel 8001 may be dropped based on the uplink channel 8001 colliding with the transmission of a non-cell defined SS / PBCH block.
[0221] For example, the second-type terminal device 1 may transmit an uplink channel 8002. stomach.
[0222] For example, the terminal device 1 of type 2B has an uplink channel 8003 in the cell definition SS Transmissions on uplink channel 8003 may be dropped based on colliding with transmissions of the / PBCH block.
[0223] That is, the terminal device 1 of the 2B type determines, based on the first information and the second information, For example, the second B channel may be determined to be a dropped channel. A terminal device 1 of this type may determine whether or not to drop transmission of an uplink channel based on whether or not a cell definition SS / PBCH block is transmitted as provided by the first information and whether or not a cell definition SS / PBCH block is transmitted as provided by the second information.
[0224] For example, dropping the transmission of an uplink channel may mean not performing the transmission even though the transmission of the uplink channel is scheduled. For example, dropping the transmission of an uplink channel may mean not determining a transmission opportunity for the uplink channel. For example, dropping the transmission of an uplink channel in a certain slot may mean not counting the certain slot for the transmission of the uplink channel. For example, dropping the transmission of an uplink channel in a certain slot may mean not determining the certain slot as a slot for the transmission of the uplink channel.
[0225] Here, referring to a certain BWP for the setting in the terminal device 1 may mean applying some or all of the settings of the antenna unit 11, the RF unit 12, and the baseband unit 13 in the terminal device 1 based on the frequency bandwidth of the certain BWP. For example, Applying the setting of the antenna unit 11 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the antenna unit 11 so that it can receive a signal in the frequency bandwidth of the certain BWP. For example, applying the setting of the RF unit 12 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the RF unit 12 so that it can receive a signal in the frequency bandwidth of the certain BWP. For example, applying the setting of the baseband unit 13 in the terminal device 1 based on the frequency bandwidth of a certain BWP may mean setting the baseband unit 13 so that it can receive a signal in the frequency bandwidth of the certain BWP.
[0226] Applying some or all of the settings of the antenna unit 11, the RF unit 12, and the baseband unit 13 in the terminal device 1 based on a certain frequency band may involve determining one or both of the channel band and the transmission band setting based on the certain frequency band.
[0227] FIG. 9 is a diagram showing an example of carrier setting according to one aspect of the present embodiment. The horizontal axis in FIG. 9 indicates frequency. Also, a channel bandwidth 9000 is a continuous The channel band 9000 may be defined by various frequency resources. The channel band 9000 may be frequency resources defined by regulations, radio laws, or other reasons of each country. The transmission bandwidth configuration 9001 may be configured by a subset of frequency resources included in the channel band 9000. The transmission bandwidth configuration 9001 may be configured by one or more resource blocks. The black blocks are also called active resource blocks, and a band configured by the active resource blocks is called a transmission bandwidth 9002. A frequency resource that is inside the channel band 9000 and outside the transmission bandwidth configuration 9001 is called a guard band 9003. Both ends of the channel band 9000 are called channel edges 9004.
[0228] The channel band 9000 may be an uplink channel band or a downlink channel band. The transmission band setting 9001 may be an uplink transmission band setting or a downlink transmission band setting. The transmission band 9002 may be an uplink transmission band or a downlink transmission band. The guard band 9003 may be an uplink guard band or a downlink guard band. The channel edge 9004 may be an uplink channel edge or a downlink channel edge.
[0229] FIG. 10 shows the maximum number N of resource blocks in a transmission band setting 9001 according to one aspect of this embodiment. RB10 is a diagram showing an example of a setting of the maximum number N of resource blocks in the transmission band setting 9001. The top column of the table shown in FIG. 10 indicates the width of the frequency resource of the channel band 9000. That is, for example, the width of the frequency resource of the channel band 9000 may be any of 5 MHz, 10 MHz, 15 MHz, 20 MHz, 25 MHz, 30 MHz, 40 MHz, 50 MHz, 60 MHz, 80 MHz, 90 MHz, and 100 MHz. The leftmost column of the table shown in FIG. 10 indicates the subcarrier spacing (unit: kHz). Each of the elements not included in the top column of the table shown in FIG. 10 and not included in the leftmost column of the table indicates the maximum number N of resource blocks in the transmission band setting 9001. RB For example, when the width of the frequency resource of the channel band 9000 is 5 MHz and the subcarrier interval is 15 kHz, the maximum number N RB may be 25. In addition, when the width of the frequency resource of the channel band 9000 is 30 MHz and the subcarrier spacing is 30 kHz, the maximum number N of resource blocks in the transmission band setting 9001 may be RB In addition, the maximum number N of resource blocks in the transmission band setting 9001 when the width of the frequency resource of the channel band 9000 is 5 MHz and the subcarrier spacing is 60 kHz may be 78. RB may be N / A. N / A may mean that it is not defined. In other words, the maximum number N of resource blocks in the transmission band setting 9001 corresponding to a set of the width of the frequency resource of a certain channel band 9000 and a certain subcarrier spacing value is RB N / A may indicate that the set of values of the width of the frequency resource of the certain channel band 9000 and the certain subcarrier spacing is not defined.
[0230] The transmission band setting 9001 may be used at least to set requirements for some or all of out-of-band radiation, in-channel band reception sensitivity, and adjacent channel band reception sensitivity. For example, some or all of the out-of-band radiation, in-channel band reception sensitivity, and adjacent channel band reception sensitivity may be given based at least on the number N of resource blocks of a certain transmission band setting 9001. For example, the adjacent channel band reception sensitivity may be given for each set of the frequency resource width of a certain channel band 9000 and the transmission power value in the number N of resource blocks of a certain transmission band setting 9001. In addition, the maximum number N of resource blocks of a certain transmission band setting 9001 may be set based on the number N of resource blocks of a certain transmission band setting 9001. RB For example, the adjacent channel band reception sensitivity may be determined based on the width of the frequency resource of a certain channel band 9000 and the maximum number N of resource blocks of a certain transmission band setting 9001. RB may be provided for each set of transmit power values in
[0231] The transmission band 9002 may indicate a set of resource blocks on which the transmission of the physical signal is performed. For example, the transmission band 9002 may correspond to a frequency domain resource allocation of a PDSCH. The transmission band 9002 may also correspond to a frequency domain resource allocation of a PUSCH. The resource blocks included in the transmission band 9002 are also referred to as active resource blocks. The transmission band 9002 may be a DCI format. The frequency domain resource allocation field may be based at least on the value of a frequency domain resource allocation field included in the mat.
[0232] Fig. 11 is a diagram showing an example of setting the minimum value of a guard band 9003 that can be set for a channel band 9000 according to one aspect of this embodiment. The top column of the table shown in Fig. 11 indicates the width of the frequency resource of the channel band 9000. The leftmost column of the table shown in Fig. 11 indicates the subcarrier spacing (unit: kHz). Each element not included in the topmost column of the table and not included in the leftmost column of the table indicates the minimum value (in kHz) of the guard band 9003 that can be set for the channel band 9000. For example, when the width of the frequency resource of the channel band 9000 is 5 MHz and the subcarrier interval is 15 kHz, the minimum value of the guard band 9003 may be 242.5 kHz. When the width of the frequency resource of the channel band 9000 is 30 MHz and the subcarrier interval is 30 kHz, the minimum value of the guard band 9003 may be 945 kHz. When the width of the frequency resource of the channel band 9000 is 5 MHz and the subcarrier interval is 60 kHz, the minimum value of the guard band 9003 may be N / A.
[0233] 11, the relationship between the channel band 9000 and the subcarrier spacing may be given by (CHBW-RBvalue*SCS*12) / 2-SCS / 2. Here, CHBW is the width of the frequency resource of the channel band 9000, and may be expressed in units of kHz. Furthermore, RBvalue may be the number N of resource blocks of the transmission band setting 9001 included in the channel band 9000. Furthermore, RBvalue may be the maximum number N of resource blocks of the transmission band setting 9001 included in the channel band 9000. RB RBvalue may be the maximum number N of resource blocks in the transmission band setting 9001 in the table shown in FIG. RB In addition, SCS may be a subcarrier interval, and the unit may be kHz.
[0234] The bandwidth of the guard band 9003 provided based on the transmission bandwidth setting 9001 set in the channel band 9000 may be set so as not to fall below the minimum value of the guard band 9003.
[0235] Various aspects of the device according to one aspect of this embodiment will be described below.
[0236] (1) In order to achieve the above object, the aspects of the present invention provide the following means. That is, a first aspect of the present invention is a terminal device, comprising: a physical layer control unit that transmits a PUSCH; A first SS / PBCH block for a first SS / PBCH block located at a first frequency location in a serving cell. and an RRC layer processing unit that provides the physical layer control unit with RRC parameters for the first SS / PBCH block located at a second frequency position in the serving cell and second RRC parameters for a first SS / PBCH block located at a second frequency position in the serving cell, wherein the physical layer processing unit determines whether to drop the transmission of the PUSCH based on the first RRC parameters and the second RRC parameters.
[0237] (2) Also, in the first aspect of the present invention, the PBCH included in the first SS / PBCH block includes a MIB corresponding to the serving cell, and the PBCH included in the second SS / PBCH block does not include a MIB.
[0238] (3) Also, in the first aspect of the present invention, some of the information bits included in the PBCH included in the first SS / PBCH block indicate resources of a control resource set with index 0 in the serving cell, and none of the information bits included in the PBCH included in the second SS / PBCH block are used to indicate the resources of the control resource set.
[0239] (4) Also, in the first aspect of the present invention, the SIB1 in the serving cell includes first information used to determine a first frequency band of a first initial BWP and second information used to determine a second frequency band of the second initial BWP, wherein the first frequency position is a band from a first starting frequency to a first ending frequency, the second frequency position is a band from a second starting frequency to a second ending frequency, the first starting frequency and the first ending frequency are included in the first frequency band, the second starting frequency and the second ending frequency are included in the second frequency band, and at least one of the first starting frequency and the first ending frequency is not included in the second frequency band.
[0240] (5) In the first aspect of the present invention, the physical layer processing unit is block and monitors the second SS / PBCH block.
[0241] (6) In the first aspect of the present invention, the n-th bit of the first RRC parameter The m-th bit of the second RRC parameter indicates whether the first SS / PBCH block is transmitted in a resource corresponding to the SS / PBCH block candidate with index n-1, and the m-th bit of the second RRC parameter indicates whether the second SS / PBCH block is transmitted in a resource corresponding to the SS / PBCH block candidate with index m-1.
[0242] (7) A second aspect of the present invention is a base station device, comprising: and a first SS / PBCH block located at a first frequency location in a serving cell. a first RRC parameter for transmitting the second RRC signal to the serving cell; and an RRC layer processing unit that provides second RRC parameters for one SS / PBCH block to the physical layer control unit, wherein the physical layer processing unit determines whether to drop reception of the PUSCH based on the first RRC parameters and the second RRC parameters.
[0243] (8) Also, in a second aspect of the present invention, the PBCH included in the first SS / PBCH block includes a MIB corresponding to the serving cell, and the PBCH included in the second SS / PBCH block does not include a MIB.
[0244] (9) Also, in a second aspect of the present invention, some of the information bits included in the PBCH included in the first SS / PBCH block indicate resources of a control resource set with index 0 in the serving cell, and none of the information bits included in the PBCH included in the second SS / PBCH block are used to indicate the resources of the control resource set.
[0245] (10) Also, in a second aspect of the present invention, SIB1 in the serving cell includes first information used to determine a first frequency band of a first initial BWP and second information used to determine a second frequency band of the second initial BWP, wherein the first frequency position is a band from a first starting frequency to a first ending frequency, the second frequency position is a band from a second starting frequency to a second ending frequency, the first starting frequency and the first ending frequency are included in the first frequency band, the second starting frequency and the second ending frequency are included in the second frequency band, and at least one of the first starting frequency and the first ending frequency is not included in the second frequency band.
[0246] (11) In the second aspect of the present invention, the n-th bit of the first RRC parameter The m-th bit of the second RRC parameter indicates whether the first SS / PBCH block is transmitted on a resource corresponding to the SS / PBCH block candidate with index n-1, and the m-th bit of the second RRC parameter indicates whether the second SS / PBCH block is transmitted on a resource corresponding to the SS / PBCH block candidate with index m-1.
[0247] The base station device 3 and the program operating in the terminal device 1 according to the present invention control a CPU (Central Processing Unit) and the like so as to realize the functions of the above-mentioned embodiment according to the present invention. The information handled by these devices is temporarily stored in RAM (Random Access Memory) during processing. Then, it is stored in various ROMs such as Flash ROM (Read Only Memory) and HDD. D (Hard Disk Drive) and is read, modified, and written by the CPU as necessary. The inclusion takes place.
[0248] In addition, a part of the terminal device 1 and the base station device 3 in the above-mentioned embodiment may be realized by a computer. In that case, a program for realizing this control function may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to realize the control function.
[0249] The "computer system" here refers to a computer system built into the terminal device 1 or base station device 3, and includes hardware such as an OS and peripheral devices. Also, the "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, and storage devices such as hard disks built into the computer system.
[0250] Furthermore, the term "computer-readable recording medium" may include a medium that dynamically stores a program for a short period of time, such as a communication line when transmitting a program via a network such as the Internet or a communication line such as a telephone line, and a medium that stores a program for a certain period of time, such as a volatile memory inside a computer system that serves as a server or client in such a case. The above program may be one that realizes part of the above-mentioned functions, or may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system.
[0251] Furthermore, the base station device 3 in the above-described embodiment can also be realized as an aggregate (device group) consisting of a plurality of devices. Each of the devices constituting the device group may have some or all of the functions or functional blocks of the base station device 3 according to the above-described embodiment. It is sufficient for the device group to have all of the functions or functional blocks of the base station device 3. Furthermore, the terminal device 1 according to the above-described embodiment can also communicate with the base station device as an aggregate.
[0252] In addition, the base station device 3 in the above-mentioned embodiment may be an EUTRAN (Evolved Universal Terrestrial Radio Access Network) and / or an NG-RAN (NextGen RAN, NR RAN). In addition, the base station device 3 in the above-mentioned embodiment may have a part or all of the functions of an upper node for an eNodeB and / or a gNB.
[0253] In addition, some or all of the terminal device 1 and base station device 3 in the above-mentioned embodiment may be realized as an LSI, which is typically an integrated circuit, or may be realized as a chip set. Each functional block of the terminal device 1 and base station device 3 may be individually formed into a chip, or some or all of them may be integrated into a chip. The integrated circuit method is not limited to LSI, and may be realized by a dedicated circuit or a general-purpose processor. Furthermore, if an integrated circuit technology that replaces LSI appears due to advances in semiconductor technology, it is also possible to use an integrated circuit based on that technology.
[0254] In addition, in the above-described embodiment, a terminal device is described as an example of a communication device, but the present invention is not limited to this and can also be applied to terminal devices or communication devices such as stationary or non-movable electronic devices installed indoors or outdoors, for example, AV equipment, kitchen equipment, cleaning / washing equipment, air conditioning equipment, office equipment, vending machines, and other household appliances.
[0255] Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and the present invention may be modified in any manner without departing from the gist of the present invention. In addition, the present invention can be modified in various ways within the scope of the claims, and embodiments obtained by appropriately combining the technical means disclosed in the different embodiments are also included in the technical scope of the present invention. Also included are configurations in which elements described in the above embodiments are replaced with elements that have the same effect. [Explanation of symbols]
[0256] 1(1A, 1B, 1C) Terminal equipment 3 Base station equipment 9. Wireless Communication Systems 10, 30 Physical layer processing unit 10a, 30a Radio transmitter 10b, 30b Wireless receiver 11, 31 Antenna section 12, 32 RF section 13, 33 Baseband section 14, 34 Upper layer processing unit 15, 35 Media access control layer processing unit 16, 36 Radio resource control layer processing unit 6000 cells 6001, 6002, 6003 area 6010 Pattern 6100, 6101 BWP 7000, 7001 Set 7100, 7101 period 8000, 8001, 8002, 8003 PUSCH 9000 Channel Bandwidth 9001 Transmission Bandwidth Settings 9002 Transmission Band 9003 Guard Band 9004 Channel Edge
Claims
1. A physical layer control unit that transmits a PUSCH; A first SS / PBCH block for a first SS / PBCH block located at a first frequency location in a serving cell. and an RRC layer processor configured to provide the physical layer controller with one RRC parameter and a second RRC parameter for a first SS / PBCH block located at a second frequency position in the serving cell; The physical layer processing unit determines whether to drop the transmission of the PUSCH based on the first RRC parameter and the second RRC parameter. Terminal device.
2. The PBCH included in the first SS / PBCH block includes a MIB corresponding to the serving cell, and the PBCH included in the second SS / PBCH block does not include a MIB. The terminal device according to claim 1 .
3. A part of the information bits included in the PBCH included in the first SS / PBCH block is The control resource set of index 0 in the SS / PBCH block indicates the resource of the control resource set of index 0 in the SS / PBCH block. It is not used to indicate the resource in the The terminal device according to claim 1 .
4. The SIB1 in the serving cell includes first information used to determine a first frequency band of a first initial BWP and second information used to determine a second frequency band of the second initial BWP; the first frequency location is a band from a first start frequency to a first end frequency, the second frequency location is a band from a second start frequency to a second end frequency, the first start frequency and the first end frequency are included in the first frequency band; the second start frequency and the second end frequency are included in the second frequency band; At least one of the first start frequency and the first end frequency is not included in the second frequency band. The terminal device according to claim 1 .
5. The physical layer processing unit does not monitor the first SS / PBCH block, but monitors the second SS / PBCH block. The terminal device according to claim 1 .
6. The n-th bit of the first RRC parameter is the SS / PBCH block with index n-1. indicating whether the first SS / PBCH block is transmitted on a resource corresponding to the candidate. 、 The m-th bit of the second RRC parameter is the SS / PBCH block with index m-1. indicating whether the second SS / PBCH block is transmitted on a resource corresponding to the candidate. 、 The terminal device according to claim 1 .
7. A physical layer control unit for receiving a PUSCH; A first SS / PBCH block for a first SS / PBCH block located at a first frequency location in a serving cell. and an RRC layer processor configured to provide the physical layer controller with one RRC parameter and a second RRC parameter for a first SS / PBCH block located at a second frequency position in the serving cell; The physical layer processing unit determines whether to drop the reception of the PUSCH based on the first RRC parameter. and determining the second RRC parameter based on the second RRC parameter. Base station equipment.
8. The PBCH included in the first SS / PBCH block includes a MIB corresponding to the serving cell, and the PBCH included in the second SS / PBCH block does not include a MIB. The base station device according to claim 7.
9. A part of the information bits included in the PBCH included in the first SS / PBCH block is The control resource set of index 0 in the SS / PBCH block indicates the resource of the control resource set of index 0 in the SS / PBCH block. It is not used to indicate the resource in the The base station device according to claim 7.
10. The SIB1 in the serving cell includes first information used to determine a first frequency band of a first initial BWP and second information used to determine a second frequency band of the second initial BWP; the first frequency location is a band from a first start frequency to a first end frequency, the second frequency location is a band from a second start frequency to a second end frequency, the first start frequency and the first end frequency are included in the first frequency band; the second start frequency and the second end frequency are included in the second frequency band; At least one of the first start frequency and the first end frequency is not included in the second frequency band. The base station device according to claim 7.
11. The n-th bit of the first RRC parameter is the SS / PBCH block with index n-1. indicating whether the first SS / PBCH block is transmitted on a resource corresponding to the candidate. 、 The m-th bit of the second RRC parameter is the SS / PBCH block with index m-1. indicating whether the second SS / PBCH block is transmitted on a resource corresponding to the candidate. 、 The base station device according to claim 7.
12. A communication method for use in a terminal device, comprising: transmitting a PUSCH; A first SS / PBCH block for a first SS / PBCH block located at a first frequency location in a serving cell. providing, to a physical layer, the first RRC parameters and second RRC parameters for a first SS / PBCH block located at a second frequency location in the serving cell; Whether to drop the transmission of the PUSCH is determined based on the first RRC parameter and the second RRC determining based on the parameter Communication methods.