Terminal, base station, and wireless communication method

Abstract

This terminal that shares a frequency with a first-generation wireless access technology and supports a second-generation wireless access technology that is subsequent to the first-generation wireless access technology comprises: a communication unit for receiving information regarding a first resource which is used to transmit control information or a reference signal by a base station supporting the first-generation wireless access technology; and a control unit for controlling communication through the second-generation wireless access technology on the basis of the information regarding the first resource.

Description

Terminal, base station, and wireless communication method

[0001] The present disclosure relates to a terminal, a base station, and a wireless communication method.

[0002] The 3rd Generation Partnership Project (3GPP) has developed specifications for the 5th generation mobile communication system (5G, also known as New Radio (NR) or Next Generation 10 (NG)), and is also developing specifications for the next generation of mobile communication systems, known as Beyond 5G, 5G Evolution, or 6G.

[0003] In Release 15, dynamic spectrum sharing (DSS) was proposed to share frequencies between multiple wireless communication technologies, and from Release 15 to Release 18, enhancements were made to DSS as a technique for sharing frequencies between LTE and NR (for example, Non-Patent Document 1).

[0004] “Summary of Rel17 WI on NR Dynamic spectrum sharing (DSS)”, RP-220464, 3GPP TSG RAN Meeting #95-e, March 17-23, 2022

[0005] However, when frequency sharing is carried out in generations subsequent to 5G, there is a possibility that interference may occur.

[0006] One aspect of the present disclosure provides a terminal, a base station, and a wireless communication method that can avoid interference when frequency sharing is carried out in generations subsequent to 5G.

[0007] A terminal according to one aspect of the present disclosure is a terminal that shares frequencies with a first generation radio access technology and supports a second generation radio access technology that is a successor to the first generation, and includes a communication unit that receives information regarding a first resource used by a base station that supports the first generation radio access technology to transmit control information or a reference signal, and a control unit that controls communication of the second generation radio access technology based on the information regarding the first resource.

[0008] 1 is a diagram showing an overall schematic configuration of a wireless communication system. 2 is a diagram showing a frequency range used in the wireless communication system. 3 is a diagram showing an example configuration of a radio frame, subframe, slot, and symbol used in the wireless communication system. 4 is a sequence diagram showing an example of a CBRA procedure. 5 is a sequence diagram showing another example of the CBRA procedure. 6 is a sequence diagram showing an example of a CFRA procedure. 7 is a diagram showing an example of an SSB configuration. 8 is a diagram showing a comparison of each SS of LTE and NR. 9 is a diagram showing an example of an RRC that configures an SRS. 10 is a diagram showing an example of coexistence of NR and 6G. 11 is a diagram showing an example of the relationship between NR-SSB cells and frequencies. 12 is a diagram showing an example of signaled information. 13 is a diagram showing an example of coexistence of NR and 6G in an UL slot. 14 is a diagram showing examples of RM patterns at the same frequency and at different frequencies. 15 is a block diagram showing an example of the configuration of a base station according to an embodiment of the present disclosure. 16 is a block diagram showing an example of the configuration of a terminal according to an embodiment of the present disclosure. 17 is a diagram showing an example of the hardware configuration of a base station and a terminal according to an embodiment of the present disclosure. 18 is a diagram showing an example of the configuration of a vehicle according to an embodiment of the present disclosure.

[0009] Hereinafter, embodiments will be described with reference to the drawings. Note that the same or similar reference numerals are used to designate the same functions or configurations, and descriptions thereof will be omitted as appropriate.

[0010] 1 is a wireless communication system conforming to a method called 5G. Alternatively, the wireless communication system 10 may be a wireless communication system conforming to a method called Beyond 5G, 5G Evolution, or 6G.

[0011] The wireless communication system 10 can support Massive Multiple-Input Multiple-Output (Massive MIMO), which generates more directional beams by controlling wireless signals transmitted from multiple antenna elements, Carrier Aggregation (CA), which uses multiple component carriers (CCs) as a bundle, and Dual Connectivity (DC), which enables simultaneous communication with two base stations.

[0012] As shown in FIG. 1 , the wireless communication system 10 includes a base station 100 (hereinafter also referred to as a gNodeB (gNB) 100) constituting a Next Generation-Radio Access Network (NG-RAN) 20, and a terminal 200 (hereinafter also referred to as a user equipment (UE) 200) that performs wireless communication with the gNB 100. The NG-RAN 20 is connected to a core network (CN) (not shown). The CN is composed of multiple network functions (NFs). The NFs are, for example, an access and mobility management function (AMF) and a network data analytics function (NWDAF). The AMF performs, for example, registration of the UE 200. The NWDAF performs, for example, optimization of the CN. Note that the specific configuration of the wireless communication system 10, for example, the number of gNBs 100 and UEs 200, is not limited to the example shown in FIG. 1 . The NG-RAN 20 and the CN may be simply referred to as a "network."

[0013] The gNB100 may be a base station in a Centralized-Radio Access Network (C-RAN) configuration having a distributed unit (DU) having a function for connecting to the UE200 and a central unit (CU) having a function for connecting to the network. In this case, the gNB100 may be read as a DU, a CU, or a DU and a CU. When the gNB100 is read as a DU, it may be called a gNB-DU. When the gNB100 is read as a CU, it may be called a gNB-CU. When the gNB100 is read as a DU and a CU, the DU portion may be called a gNB-DU and the CU portion may be called a gNB-CU.

[0014] The wireless communication system 10 may also support multiple frequency ranges (FR). That is, as shown in Fig. 2, the wireless communication system 10 may support the following FRs: FR1: 410 MHz to 7.125 GHz FR2-1: 24.25 GHz to 52.6 GHz FR2-2: Over 52.6 GHz to 71 GHz

[0015] In FR1, a subcarrier spacing (SCS) of 15, 30, or 60 kHz and a bandwidth (BW) of 5 to 100 MHz may be used, while in FR2-1, an SCS of 60 or 120 kHz (or even 240 kHz) and a BW of 50 to 400 MHz may be used.

[0016] Note that SCS may be interpreted as numerology, which is defined in 3GPP TS 38.300 and corresponds to one subcarrier spacing in the frequency domain.

[0017] In FR2-2, to avoid an increase in phase noise, Cyclic Prefix-Orthogonal Frequency Division Multiplexing (CP-OFDM) or Discrete Fourier Transform-Spread-Orthogonal Frequency Division Multiplexing (DFT-S-OFDM) with a larger SCS may be applied.

[0018] 3 is a diagram showing an example of the configuration of a radio frame (system frame), subframe, and slot used in the radio communication system 10. As shown in FIG. 3, one slot is composed of 14 symbols, and the larger (wider) the SCS, the shorter the symbol period (and slot period). However, the SCS is not limited to the interval (frequency) shown in FIG. 3. For example, 480 kHz, 960 kHz, etc. may be used as the SCS.

[0019] Furthermore, the number of symbols constituting one slot does not necessarily have to be 14 (for example, it may be 28 or 56 symbols, etc.) Furthermore, the number of slots per subframe may differ depending on the SCS.

[0020] 3 may be called a time domain, a symbol period, a symbol time, etc. The frequency direction may be called a frequency domain, a resource block, a subcarrier, a bandwidth part (BWP), etc.

[0021] The wireless communication system 10 may support coverage enhancement (CE) that expands the coverage of a cell (or a physical channel) formed by the gNB 100. In coverage enhancement, a mechanism for increasing the success rate of reception of various physical channels, such as repeated transmission (repetition) of a PRACH (physical random access channel), may be provided.

[0022] For example, UE200 receives information related to the random access procedure from gNB100 as a downlink (DL) signal (e.g., SIB1 (System Information Block Type 1) etc.).

[0023] Further, for example, UE 200 transmits PRACH as an UL signal to gNB 100 using a RACH occasion (RO), which is a resource for transmitting a random access preamble. For example, UE 200 repeatedly transmits PRACH as an UL signal to gNB 100.

[0024] The UL signal may include, for example, a UL data signal and control information. For example, the UL signal may include information related to the processing capability of the UE 200 (e.g., UE capability). The UL signal may also include a reference signal.

[0025] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channel may include a physical uplink shared channel (PUSCH), and the control channel may include a physical uplink control channel (PUCCH). For example, the UE 200 transmits control information using the PUCCH and transmits UL data signals using the PUSCH. Note that the PUSCH is an example of an uplink shared channel, and the PUCCH is an example of an uplink control channel. The shared channel may also be called a data channel.

[0026] The reference signal included in the UL signal may include, for example, at least one of a Demodulation Reference Signal (DMRS), a Phase Tracking Reference Signal (PTRS), a Channel State Information - Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as the DMRS and PTRS are used to demodulate the UL data signal and are transmitted using the PUSCH.

[0027] Meanwhile, in response to the operation of UE200, gNB100 transmits information related to the RACH procedure to UE200 as a DL signal (e.g., SIB1, etc.).

[0028] Also, for example, gNB100 receives PRACH as an UL signal from UE200. For example, gNB100 repeatedly receives PRACH from UE200 as an UL signal.

[0029] Channels used for transmitting DL signals include, for example, data channels and control channels. For example, the data channel may include a physical downlink shared channel (PDSCH), and the control channel may include a physical downlink control channel (PDCCH). For example, the gNB 100 transmits control information to the UE 200 using the PDCCH, and transmits DL data signals using the PDSCH. Note that the PDSCH is an example of a downlink shared channel, and the PDCCH is an example of a downlink control channel. Note that the PDCCH may be interpreted as downlink control information (DCI), control information, etc. transmitted in the PDCCH.

[0030] The reference signal included in the DL signal may include, for example, at least one of a DMRS, a PTRS, a CSI-RS, an SRSRS, and a PRS for location information. For example, the reference signal such as a DMRS or a PTRS is used for demodulating a DL data signal and is transmitted using a PDSCH.

[0031] <Random Access Procedure> The NR random access procedure is performed for various purposes such as initial access, recovery from beam interference, handover, etc. The random access procedure includes a CBRA (Contention Based Random Access) procedure as a contention-based random access procedure and a CFRA (Contention Free Random Access) procedure as a contention-free random access procedure. Since the CBRA procedure is initiated by the UE 200 voluntarily, collisions may occur when multiple UEs 200 simultaneously initiate the random access procedure. On the other hand, CFRA allows the gNB 100 to instruct the connected UE 200 to perform the random access procedure so that collisions do not occur between multiple UEs 200.

[0032] In NR, a random access procedure may be performed by selecting a Synchronization Signal (SS) / Physical Broadcast Channel (PBCH) block, or by selecting a CSI-RS. The SS / PBCH block may be referred to as a Synchronization Signal Block (SSB) or synchronization signal, and the CSI-RS may be referred to as a reference signal.

[0033] FIG. 4 is a sequence diagram illustrating an example of a CBRA procedure.

[0034] For example, the gNB 100 transmits an SSB for each beam, and the UE 200 monitors the SSB of each beam. The UE 200 selects an SSB from among the multiple SSBs whose received power (RSRP: Reference Signal Received Power) is greater than a threshold (or is equal to or greater than a threshold), and transmits a random access preamble to the gNB 100 via a PRACH using an RO associated with (corresponding to) the selected SSB (step S101). The random access preamble (sometimes abbreviated as an RA preamble or RA preamble) may be appropriately referred to as a preamble, a PRACH preamble, a message 1, an Msg1, or the like.

[0035] The gNB 100 transmits a response message to Msg1 as a second message to the UE 200 via the PDSCH (step S102). This response message (second message) may be appropriately referred to as a random access response (RAR), RA Response, message 2 (Message 2), Msg2, or the like. After transmitting Msg1, the UE 200 may monitor the PDCCH used for scheduling the PDSCH including Msg2. Msg2 may include an uplink grant (UL Grant) (RAR uplink grant) used for scheduling the PUSCH including the third message transmitted by the UE 200.

[0036] The UE 200 transmits the PUSCH scheduled by the RAR uplink grant as a third message (step S103). For example, the UE 200 transmits a radio resource control (RRC) connection request, an RRC connection re-establishment request, or the like to the gNB 100 via the PUSCH. The third message may be appropriately referred to as a message 3, Msg 3, an RRC connection request, or the like.

[0037] The gNB 100 transmits a contention resolution message (Contention Resolution Message) as a fourth message via the PDSCH (step S104). This contention resolution message (fourth message) may be referred to as Message 4, Msg 4, or the like, as appropriate. After transmitting Msg 3, the UE 200 may monitor the PDCCH used for scheduling the PDSCH including Msg 4. Msg 4 may include a contention resolution ID (UE contention resolution ID). The contention resolution ID may be used to resolve contention between multiple UEs 200 transmitting signals using the same radio resources. If the contention resolution ID included in the Msg 4 received by the UE 200 is the same value as the ID for identifying the UE 200, the UE 200 determines that contention resolution is successful and may set the value of the Temporary Cell-Radio Network Temporary Identifier (TC-RNTI) in the Cell-Radio Network Temporary Identifier (C-RNTI) field. When the value of the TC-RNTI is set in the C-RNTI field, the UE 200 may consider that the RRC connection is completed. Msg4 may be referred to as an RRC connection setup, etc.

[0038] UE200, whose RRC connection has been completed, may transmit an Ack (Acknowledgement) via the PUCCH (PUCCH resource) indicated by the PUCCH resource indication field included in the PDCCH that scheduled Msg4 in order to notify gNB100 that the RRC connection has been completed. Also, after the RRC connection is established, UE200 may transmit UE capability to gNB100. The above-described random access procedure may be referred to as a Type 1 RACH procedure, a 4-step RACH procedure, a Type 1 RACH, a 4-step RACH, or the like.

[0039] FIG. 5 is a sequence diagram showing another example of the CBRA procedure.

[0040] The UE 200 transmits a message including an RA preamble and data to the gNB 100 (step S201). As an example, the UE 200 selects an RO in the same manner as selecting an RO in the 4-step RACH procedure, transmits an RA preamble in the RO, and transmits data in a PUSCH resource associated with the RO. This message may be appropriately referred to as Message A, Msg A, etc. Note that the RA preamble and data here may correspond to Msg 1 and Msg 3 in the 4-step RACH procedure, respectively. Msg A includes one RA preamble (referred to as Msg A PRACH) and one piece of data (referred to as Msg A PUSCH), and the Msg A PRACH and Msg A PUSCH are time-division multiplexed and transmitted. More specifically, the MsgA PRACH is one preamble with one preamble index in the MsgA RACH occasion (RO), and the MsgA PUSCH is one PUSCH with one PUSCH resource unit (PRU) in the MsgA PUSCH occasion (PO) according to the MsgA PUSCH configuration. Note that in this procedure, the resources for transmitting data are not limited to PUSCH resources, and may be resources of any channel for transmitting data (or control information).

[0041] The gNB 100 transmits the response message to the UE 200 as a second message (step S202). This response message (second message) may be appropriately referred to as Message B, Msg B, or the like. The content included in Message B may correspond to, for example, Msg2 and Msg4 in the 4-step RACH procedure. MsgB includes one PDSCH (and one PDCCH that schedules the PDSCH). From the perspective of the physical layer, the content of Msg2 and Msg4 is simply integrated into MsgB.

[0042] The UE 200, whose RRC connection has been completed, may transmit an Ack via the PUCCH (PUCCH resource) to notify the gNB 100 that the RRC connection has been completed. Also, after the RRC connection is established, the UE 200 may transmit UE capability to the gNB 100. The above-described random access procedure may be referred to as a Type 2 RACH procedure, a 2-step RACH procedure, a Type 2 RACH, a 2-step RACH, or the like. The 2-step RACH is supported to shorten the RACH delay.

[0043] FIG. 6 is a sequence diagram illustrating an example of a CFRA procedure.

[0044] The UE 200 is requested to transmit an RA preamble (Msg1) from the gNB 100. Here, the gNB 100 allocates the RA preamble (Msg1) via dedicated signaling (step S301). The PDCCH for such dedicated signaling may be referred to as a PDCCH order. The UE 200 may monitor the PDCCH (PDCCH order) to perform resource allocation for Msg1.

[0045] UE200 transmits the above-mentioned Msg1 to gNB100 (step S302).

[0046] The gNB100 transmits the above-mentioned Msg2 to the UE200 (step S303). After the RRC connection is completed, the UE200 may transmit an Ack via the PUCCH (PUCCH resource) to notify the gNB100 that the RRC connection has been completed. After the RRC connection is established, the UE200 may transmit the UE capability to the gNB100.

[0047] In this embodiment, in order to achieve coverage extension in the random access procedure, UE 200 may repeatedly transmit Msg1 (and therefore PRACH) in, for example, the above-described 4-step RACH procedure shown in Fig. 4 and the CFRA procedure shown in Fig. 6. However, in the present disclosure, Msg1 (and therefore PRACH) may also be repeatedly transmitted in the above-described 2-step RACH procedure shown in Fig. 5.

[0048] <Explanation of Terms> In this disclosure, 5G (5th generation) refers to the standardized wireless communication technology established by 3GPP (3rd Generation Partnership Project). Also, NR (New Radio) refers to a new radio access technology for 5G. In this disclosure, 5G is an example of "first generation radio access technology." Also, in this disclosure, "5G" and "NR" may be interchangeable.

[0049] In this disclosure, 6G (6th generation) refers to a standardized technology of the next generation of wireless communication technology after 5G, which is being formulated by 3GPP. 6G may be a standardized technology of a wireless communication technology of a generation subsequent to 5G. In this disclosure, 6G is an example of a "second generation wireless access technology subsequent to the first generation." 6G may be defined as a wireless communication technology having functions, capabilities, and operations not included in 5G.

[0050] In the following, an example will be shown in which the generation succeeding 5G is 6G, but the present disclosure is not limited to this. For example, the generation succeeding 5G may include a generation succeeding 6G that may be established in the future (e.g., "7G (7th generation)," "8G (8th generation)," etc.).

[0051] 5G-compliant UEs and gNBs are referred to as "5G-UEs" and "5G-gNBs," respectively, and 6G-compliant UEs and gNBs are referred to as "6G-UEs" and "6G-gNBs." A "5G-UE" may also be referred to as an "NR-UE."

[0052] Furthermore, a signal / channel / information / data X in 5G may be written as "5G-X" or "NR-X," and a signal / channel / information / data X in 6G may be written as "6G-X." For example, SSB in 5G may be written as "5G-SSB" or "NR-SSB," and SSB in 6G may be written as "6G-SSB."

[0053] Furthermore, signal / channel / information / data X in LTE (long term evolution) may be written as "LTE-X." For example, SS in LTE is written as "LTE-SS."

[0054] Furthermore, the time domain may be abbreviated as TD or T, and the frequency domain may be abbreviated as FD or F. For example, a time domain resource may be referred to as a TD resource, and a time domain instruction may be referred to as a TD instruction.

[0055] Furthermore, terms such as "information," "signal," "data," "parameter," and "channel" may be interchangeable. A channel may be abbreviated as "CH," a reference signal may be abbreviated as "RS," and a channel and / or reference signal may be abbreviated as "CH / RS." Terms such as "configured," "associated," and "supported" may be interchangeable.

[0056] Next, an example of a DL signal considered in this embodiment will be described.

[0057] <SSB> As described above, initial access of a UE in NR is performed in the following steps: acquiring a synchronization signal (hereinafter referred to as SS), acquiring broadcast information, and establishing a connection by random access. SS in NR includes two signals: a primary synchronization signal (PSS) and a secondary synchronization signal (SSS). In addition, SS in NR, together with PBCH, etc., the SS / PBCH block is also referred to as an SSB (synchronization signal block) hereinafter.

[0058] Fig. 7 is a diagram showing an example of the configuration of an SSB. The horizontal axis of Fig. 7 represents the time axis, and the vertical axis represents the frequency axis. As shown in Fig. 7, the SSB includes a PSS, an SSS, and a PBCH in four symbols.

[0059] Using SSB, the gNB provides the UE with initial access and mobility functions such as discovering NR cells, establishing frame synchronization, measuring downlink reception quality, and notifying the UE of system parameters necessary for receiving other broadcast information.

[0060] In NR, transmission candidate symbol positions for multiple SSBs are defined within a half frame. The SSBs are transmitted periodically, and different transmit beamforming techniques are applied to the multiple SSBs.

[0061] In NR, SSB is transmitted in resources specified by information called Frequency Domain Resource Allocation (FDRA) and Time Domain Resource Allocation (TDRA). The FDRA and TDRA may have a table format.

[0062] FDRA indicates resources in the frequency direction of SSB.

[0063] The TDRA indicates resources in the time direction for the SSB. For example, the TDRA includes information indicating the first OFDM symbol in which the SSB is transmitted.

[0064] The PSS is a known signal that the UE first attempts to detect during a cell search, and the SSS is a known signal for detecting a physical cell ID during a cell search.

[0065] The PBCH includes information (e.g., MIB (Master Information Block)) for the UE to establish frame synchronization with the NR cell after the SSB is detected. The PBCH also includes system parameters for receiving SIB (System Information Block) 1.

[0066] <NR-SS> A comparison between LTE-SS and NR-SS will be explained.

[0067] 8 is a diagram showing a comparison of each SS of LTE and NR. In FIG. 8, a comparison between NR-PSS and LTE-PSS, and a comparison between NR-SSS and LTE-SSS are shown.

[0068] As shown in Figure 8, the number of IDs for LTE-SS is 504, and the number of IDs for NR-SS is 1008. In other words, the number of IDs for physical cells of NR-SS is twice as many as that of LTE-SS.

[0069] As shown in Figure 8, the number of RBs and the sequence length of LTE-PSS are 6 and 63, respectively, and the number of RBs and the sequence length of NR-PSS are 12 and 127, respectively. In other words, the number of subcarriers / RBs and the sequence length of NR-SS are twice as many as those of LTE-SS.

[0070] As shown in Figure 8, in NR-SSS, the SCS is set to one of 15, 30, 120, or 240. That is, in NR-SS, scalable symbol width and bandwidth are set according to the SCS. This supports a wide frequency range with common baseband processing. A default SCS is defined for each band. The actual SCS is notified to the UE.

[0071] <NR-PBCH> PBCH may be a broadcast channel for the gNB to transmit the MIB to the UE. NR-PBCH has a large payload size of 56 bits. Some elements are generated in the physical layer (PHY layer). For example, timing-related information is generated in the PHY layer and changed within a transmission time interval (TTI). Note that information generated in higher layers does not change within a TTI. The timing-related information may be at least one of an SSB index, an LSB of the SFN, and a half-frame index.

[0072] Next, an example of system information will be described.

[0073] <NR-SIB1> SIB1 includes information for initial access, such as information about UL carriers and information about the configuration of random access signals. For example, SIB1 may include information about the scheduling of other SIBs. SIB1 indicates, for example, whether the other SIBs are provided on a periodic broadcast basis or on an on-demand basis.

[0074] SIB1 is transmitted via a PDSCH (e.g., a downlink-shared channel (DL-SCH)). SIB1 may correspond to the first RRC message excluding the MIB. SIB1 may be transmitted periodically at a specific period and may be repeatedly transmitted within the period.

[0075] SIB1 includes "cellSelectionInfo", "si-SchedulingInfo", and "servingCellConfigCommon".

[0076] "cellSelectionInfo" includes parameters for cell selection related to the serving cell. "si-SchedulingInfo" is an information element that includes information for obtaining a system information (SI) message. "servingCellConfigCommon" is an information element used to configure cell-specific parameters of the UE's serving cell. This information element includes parameters obtained from the SSB, MIB, or SIB when the UE accesses a cell from the idle state.

[0077] For example, "ServingCellConfigCommon" includes "ssb-PositionsInBurst." "ssb-PositionsInBurst" indicates the positions of SSB in the time domain.

[0078] CORESETZERO (control resource set zero) is a special CORESET that carries PDCCH / DCI for SIB1.

[0079] Next, an example of a UL signal considered in this embodiment will be described.

[0080] <PUSCH> PUSCH is a channel used for transmitting UL data, etc. The UE transmits the PUSCH in resources determined based on PUSCH resource allocation.

[0081] In resource allocation for PUSCH, SLIV (Start and Length Indicator Value) is used in time domain allocation. That is, in resource allocation for PUSCH, the start position and length are indicated in the time domain. Therefore, in resource allocation for PUSCH, consecutive symbols are indicated.

[0082] There are two types of PUSCH resource allocation in frequency domain allocation: Type 0 and Type 1. In Type 0, resource allocation is performed using a bitmap that associates one bit per RBG (resource block group). In this case, non-contiguous RBGs may be allocated to PUSCH resources. In Type 1, the start position and length are indicated at the RB level. In Type 1, the start position and length are indicated in the RIV (resource indication value) frequency domain, so contiguous RBs are indicated for PUSCH resource allocation.

[0083] <SRS (Sounding Reference Signal)> SRS is a reference signal for UL and is used to estimate channel quality in the gNB. The UE transmits the SRS according to the SRS configuration provided by the RRC.

[0084] Fig. 9 is a diagram showing an example of RRC for configuring SRS. As shown in Fig. 9, "SRS-Resource" includes information on multiple ports supported by SRS, information related to the transmission comb (Tx comb), time domain allocation, frequency domain allocation, and information on hopping. Based on this configuration, the UR configures resources to be used for transmitting the SRS and transmits the SRS.

[0085] Next, the frequency share considered in this embodiment will be described.

[0086] <DSS in NR> DSS (dynamic spectrum sharing) was proposed in Release-15 of NR (hereinafter referred to as Rel-15). DSS was further extended from Rel-15 to Rel-18 for spectrum sharing between LTE (long term evolution) and NR.

[0087] In DSS, rate matching is performed.

[0088] <Rate Matching> Rate matching in DSS sets a region of some resources to which data / information / signals, etc. cannot be allocated. For example, in a case where resources to which data cannot be allocated are set in the PDSCH, it is possible to avoid interference with other channels when the PDSCH partially overlaps with other channels.

[0089] For example, in DSS between LTE and 5G, the NR cell avoids interference with the LTE-CRS by setting rate matching around the LTE-CRS. For example, by setting rate matching around the LTE-CRS, the NR cell avoids scheduling (e.g., scheduling of PDSCH) in the RE of the LTE-CRS.

[0090] "RateMatchPatternLTE-CRS" is an information element used to set a rate match pattern around the LTE-CRS. The rate match pattern around the LTE-CRS may be a pattern indicating resources that avoid the LTE-CRS.

[0091] "RateMatchPatternLTE-CRS" includes fields called "carrierFreqDL", "carrierBandwidthDL", "mbsfn-SubframeConfigList", and "nrofCRS-Ports".

[0092] "carrierFreqDL" indicates the center of the LTE carrier. "carrierBandwidthDL" indicates the bandwidth (BW) of the LTE carrier in multiple PRBs. "mbsfn-SubframeConfigList" contains the configuration of the LTE MBSFN subframes. "nrofCRS-Ports" indicates the number of antenna ports of the LTE CRS for rate matching.

[0093] For example, in DSS between LTE and 5G, by configuring rate matching around the LTE-PSS / SSS / PBCH and PDCCH regions, the NR cell avoids interference with the LTE-PSS / SSS / PBCH and PDCCH regions. For example, by configuring rate matching around the LTE-PSS / SSS / PBCH and PDCCH regions, the NR cell avoids scheduling (e.g., scheduling of PDSCH) in the resources of the LTE-PSS / SSS / PBCH and PDCCH regions.

[0094] For example, "RateMatchPattern" is an information element (IE) used to set one rate matching pattern for PDSCH. The rate matching pattern for PDSCH may be a pattern indicating resources that avoid LTE-PSS / SSS / PBCH, etc. PDSCH scheduling is performed based on this matching pattern.

[0095] The "RateMatchPattern" includes fields called "resourceBlocks", "symbolsInResourceBlock", "periodicityAndPattern", "periodicityAndPattern", and "controlResourceSet". No scheduling (e.g., scheduling of PDSCH) is performed on resources specified by these fields.

[0096] "resourceBlocks" contains an indication of a bitmap for RB in the frequency domain. "symbolsInResourceBlock" contains an indication of a bitmap for 1 or 2 slots in the time domain. "periodicityAndPattern" contains an indication of a bitmap for repetition in the time domain of the above frequency and time domain patterns. "controlResourceSet" contains an indication of RM resources. "controlResourceSet" may be reused to indicate resources in CORESET.

[0097] As described above, the configuration of rate matching around the LTE-CRS (cell specific reference signal) is configured so that the NR cell avoids interference with the LTE-CRS.

[0098] As described above, the RB-level rate matching settings around the LTE-PSS / SSS / PBCH and PDCCH regions are configured so that the NR cell avoids interference with the LTE-PSS / SSS / PBCH and PDCCH regions.

[0099] In NR, rate matching is extended in different releases.

[0100] In NR Rel-15, one LTE-CRS rate matching pattern is set for each NR serving cell as rate matching (RM) for DSS.

[0101] In NR Rel-16, up to three non-overlapping LTE-CRS rate matching patterns in the frequency domain are set for each NR serving cell as rate matching (RM) for DSS. Also, in NR Rel-16, only when MTRP (multiple transmission and reception point) is set as rate matching (RM) for DSS, up to two overlapping LTE-CRS rate matching patterns are set for each NR serving cell.

[0102] In NR Rel-18, two overlapping LTE-CRS rate matching patterns are set for each NR serving cell as rate matching (RM) for DSS, regardless of the MTRP setting.

[0103] <ZP-CSI-RS-Resource> "ZP-CSI-RS-Resource" will be described as a legacy RE-level RM configuration signaling. "ZP-CSI-RS-Resource" is an information element used to configure zero-power CSI-RS resources. For example, "ZP-CSI-RS-Resource" is included in "PDSCH-Config" and signaled by RRC.

[0104] As ZP implies, no signal is transmitted in the ZP-CSI-RS resources.

[0105] "ZP-CSI-RS-Resource" includes fields called "resourceMapping" and "periodicityAndOffset".

[0106] "ResourceMapping" contains information about the occupancy of OFDM symbols and subcarriers of ZP-CSI-RS resources within a slot.

[0107] "periodicityAndOffset" contains information about the periodicity and slot offset of periodic / semi-persistent ZP-CSI-RS. The network (e.g., gNB) configures this value for periodic and semi-persistent ZP-CSI-RS to the UE.

[0108] Consideration 1: MRSS for 6G-5G Spectrum Sharing Multi-RAT spectrum sharing (MRSS) is a key technology for 5G-6G coexistence, especially when there is insufficient dedicated 6G spectrum and existing 5G / 5G-A spectrum is utilized.

[0109] 10 is a diagram showing an example of coexistence between NR and 6G. The horizontal axis of FIG. 10 represents the time axis, and the vertical axis represents the frequency axis. In MRSS, as shown in FIG. 10, coexistence of NR and 6G within the same frequency is being considered.

[0110] The deployment of MRSS requires avoiding interference from 6G to existing NR systems. Avoiding interference is particularly challenging for periodic RS / periodic channels in NR. Periodic RS / periodic channels in NR include, for example, at least one of SSB, SIB1, other SIBs, CORESETZERO, paging or other settings indicated by SIBs, periodic / semi-persistent CSI-RS, etc.

[0111] A similar concept of setting rate matching patterns may also be supported in 6G.

[0112] In this embodiment, a rate matching method for avoiding interference from 6G to existing NR systems will be described. Illustratively, a rate matching signaling format and the operation of a UE for this purpose will be described.

[0113] In this embodiment, 5G (or NR) and 6G are used as examples of two systems or two wireless communication technologies, but the present disclosure is not limited thereto. Instead of 6G, the present disclosure may be applied to a system subsequent to 6G, or may be applied to two or more systems or wireless communication technologies subsequent to 6G.

[0114] In the following, Proposals 1 to 3, the signaling formats of RMs around NR-SSB, UE operations, etc. are explained. In Proposals 4 to 6, the signaling formats of RMs around signals / channels / information other than NR-SSB, UE operations, etc. are explained. Note that the following proposals may be combined as appropriate or may be used selectively.

[0115] <Proposal 1> In Proposal 1, configuration of rate matching around SSB in NR is supported for 6G-UE.

[0116] In Proposal 1, the 6G-UE acquires information regarding the rate matching settings around the SSB in the NR and controls 6G communications based on the settings according to the acquired information. Note that the SSB in the NR is an example of a synchronization signal transmitted by a gNB that supports 5G. Also, information regarding the rate matching settings around the SSB in the NR is an example of information regarding resources used by a gNB that supports 5G to transmit the SSB. Information regarding the rate matching settings around the SSB in the NR may be provided by the NW (e.g., gNB).

[0117] In addition, with regard to the method of providing information regarding rate matching configuration (e.g., signaling format), at least one of the following options may be applied.

[0118] <Option 1 of Proposal 1> In Option 1, a new setting called "RateMatchPatternNR-SSB" is provided to 6G-UE. This setting configures parameters related to NR-SSB. For example, this setting may be provided by SIB or RRC signaling. "RateMatchPatternNR-SSB" may indicate a rate matching pattern for rate matching around NR-SSB.

[0119] Under "RateMatchPatternNR-SSB", one or more of the following parameters related to the SSB configuration of the NR cell may be provided: DL frequency information for SSB (e.g., center frequency and / or bandwidth), ssb-PositionInBurst, ssb-Periodicity, SCS (subcarrier spacing), etc.

[0120] Note that the above "ssb-PositionsInBurst" indicates the position of the SSB in the time domain, and "ssb-Periodicity" indicates the period of the SSB.

[0121] <Option 2 of Proposal 1> In Option 2, a new RRC IE "RateMatchPattern-6G" is provided for 6G-UEs, which is an extension based on the legacy (e.g., NR or LTE) "RateMatchPattern" signaling format. This new RRC IE "RateMatchPattern-6G" may be used to indicate time domain resources and / or frequency domain resources to provide RM pattern configuration around NR-SSB. This new RRC IE may be provided by SIB or RRC signaling.

[0122] <Option 2-1 of Proposal 1> In Option 2-1, a new parameter is used for the time domain resource for RM. This new parameter is used to indicate a longer symbol index range. For example, a 70-bit bitmap is used to indicate symbol-level RM for 70 symbols. Note that 70 symbols correspond to 5 slots, with 14 symbols per slot. Note that "symbolsInResourceBlock" may be extended to support the configuration of more slots instead of 2 slots.

[0123] <Option 2-2 of Proposal 1> In Option 2-2, a new parameter, such as "ssb-PositionInBurst", is used to indicate an SSB index for the time domain resource for RM. For example, the new parameter is used to indicate SSB-level RM. That is, it is used to indicate 4-symbol-level RM for 1-bit TD indication. Note that TD RM indication at other levels, such as x-symbol level, x-slot level, x-minislot (also called minslot) level, or other granularities may be supported by bitmap signaling.

[0124] In addition, symbol-level RM is supported in NR DSS. Multi-symbol-level RM may be indicated in MRSS.

[0125] <Option 2-3 of Proposal 1> In Option 2-3, a greater granularity than the RB (resource block) level indication may be supported and configured for RM frequency domain resources. For example, one bit may be used for a set of multiple RBs. For example, in a bitmap, 20 RBs of frequency may be configured by a one-bit indication, or 4 RBs may be configured.

[0126] In NR DSS, RB-level RM is supported. In MRSS, multi-RB-level RM may be indicated.

[0127] Granularity finer than the RB level may be supported, for example, 0.5 RB level.

[0128] In addition, in Option 2 of Proposal 1, the candidate values ​​for "periodicityAndPattern" may match the candidate values ​​for periodicity for NR-SSB.

[0129] <Option 3 of Proposal 1> In Option 3, RM around the NR-SSB is set / instructed by referring to other parameters / other settings. The other parameters may be parameters other than parameters related to RM around the NR-SSB. The other parameters may be parameters for other purposes. Furthermore, the other settings may be settings other than settings related to RM around the NR-SSB. The other settings may be settings for other purposes. For example, assuming that NR-SSB measurement settings for intra-F / inter-F measurement are set in a 6G-UE, such measurement settings may be referenced for RM.

[0130] <Option 3-1 of Proposal 1> In Option 3-1, the RM indication is provided under the above-mentioned NR-SSB measurement setting. For example, the RM indication may be a one-bit indication for each measurement setting / NR cell / frequency / band / etc.

[0131] <Option 3-2 of Proposal 1> In Option 3-2, the RM indication is provided in a new RRC IE that is distinct from the above-mentioned NR-SSB measurement configuration. For example, the new RRC IE lists IDs of measurement configuration, NR cell, frequency, band, etc.

[0132] <Variation of Proposal 1> When SSB muting or SSB-less transmission or on-demand transmission (or other SSB-related network energy saving (NSW) operations) is performed in NR, the SSB muting pattern or SSB-less information configuration may be provided to the 6G-UE for RM pattern determination. In this case, the UE performs RM only on resources indicated as those on which SSB in NR is actually transmitted. Note that the SSB muting pattern or SSB-less information configuration may be performed via a bitmap having one bit for each SSB, SSB burst, or SSB interval. The SSB muting pattern or SSB-less information configuration may also include the start time of SSB-less transmission with a specific interval.

[0133] The configured RM configuration around the SSB in the NR may be enabled, disabled, updated, activated, or deactivated by at least one of the RRC, MAC CE, and DCI.

[0134] As described above, according to Proposal 1, the rate matching configuration around the SSB in NR is supported for 6G-UE. The 6G-UE acquires information about the rate matching configuration around the SSB in NR and controls 6G communication based on the settings according to the acquired information. As a result, even when the frequency between NR and 6G is shared, 6G communication is performed while avoiding overlap (or collision) with the SSB in NR, thereby avoiding interference from 6G to the existing NR system.

[0135] <Proposal 2> Proposal 2 describes the UE behavior for setting the RM pattern.

[0136] It is assumed that the 6G-UE does not use the TD / FD resources designated for RM for dynamic grant (DG) PDSCH / semi-persistent (SPS) PDSCH, and that the 6G-UE does not use the TD / FD resources designated for RM for other DL RS / DL CH.

[0137] Information is exchanged between the NR and 6G. For example, transmission of NR-SSB / P-CSI-RS / SIB1 / other SIBs (SIBs other than SIB1) / paging and / or corresponding RM configurations is supported. For example, at least one of these configurations may be transmitted from the NR-gNB to the 6G-gNB via an interface between gNBs (e.g., X2 / Xn). Alternatively, at least one of these configurations may be transmitted via an interface between another NR node (e.g., an NR node other than the NR-gNB) and another 6G node (e.g., a 6G node other than the 6G-gNB).

[0138] The NR's 5G-A NWES-related configuration may be transmitted to the 6G-gNB / 6G node for coordination. The NWES-related configuration may be at least one of a time domain, a frequency domain, a power domain, and a spatial domain.

[0139] As described above, in Proposal 2, the 6G-UE configures resources that are not used to receive DL signals such as DG PDSCH / SPS PDSCH / other DL RS / DL CH based on the settings made by the provided information. This makes it possible to avoid interference from 6G to the existing NR system even when frequencies are shared between NR and 6G.

[0140] Note that the UE operation described in Proposal 2 may be combined as the UE operation of other proposals. For example, when combined with Proposal 1, it is assumed that the 6G-UE does not use the TD / FD resources designated for RM of NR-SSB for DG PDSCH / SPS PDSCH. It is also assumed that the 6G-UE does not use the TD / FD resources designated for RM of NR-SSB for other DL RS / DL CH. Here, unused resources may be resources in which NR-SSB may exist. The UE operation described in Proposal 2 may be combined as the UE operation of other proposals described later.

[0141] <Proposal 3> For one 6G serving cell / BWP (bandswitch part) for a UE, an RM pattern for one NR-SSB (synchronization signal block) cell or RM patterns for multiple NR-SSB cells on the same frequency or different frequencies may be configured.

[0142] Figure 11 is a diagram showing an example of the relationship between NR-SSB cells and frequencies. NR-SSB cells #1 to #6 shown in Figure 11 include cells with the same frequency and cells with different frequencies. In the example of Figure 11, cells #1 to #3 are cells with the same frequency, and cells #4 to #6 are cells with the same frequency. For example, cells #3 and #6 are cells with different frequencies. Note that different TRPs (transmission and reception points) / beams are applied to cells with the same frequency.

[0143] To support RM patterns for multiple NR-SSB cells on the same frequency or different frequencies, any of the following signaling may be provided:

[0144] 12 is a diagram showing an example of the information to be signaled. In FIG. 12, examples of Alt. 1 to Alt. 6, which will be described later, are shown.

[0145] <Alt. 1> Assuming that the signaling format of Proposal 1 described above is for one NR-SSB cell, the signaling list in Proposal 1 supports the configuration of multiple NR-SSB cells. For example, the maximum number of NR-SSB cells is listed as N.

[0146] In the signaled information, a list including up to MAX_N "RateMatchPatternNR-SSB" is provided, as shown in Alt. 1 of Fig. 12 .

[0147] <Alt. 2> Assuming that the signaling format of Proposal 1 described above is for one NR-SSB cell, the signaling list in Proposal 1 supports the configuration of multiple NR-SSB cells with the restriction that the multiple NR-SSB cells are on different frequency resources. For example, the maximum number of NR-SSB cells is described as N1. In this case, different lists may be configured for NR-SSB cells on the same frequency / overlapping frequencies. The maximum number of lists is described as N2.

[0148] In the signaled information, a list containing up to N1 "RateMatchPatternNR-SSB"s is provided as shown in Alt. 2 of Figure 12. This single list corresponds to multiple NR-SSB cells with the restriction that the multiple NR-SSB cells are on different frequency resources.

[0149] Note that the list here may be the same as "LTE-CRS-PatternList-r16" or "lte-CRS-PatternList1-r16 / lte-CRS-PatternList2-r16".

[0150] <Alt. 3> Assuming that the signaling format of Proposal 1 described above is for one NR-SSB cell, the signaling list in Proposal 1 supports the configuration of multiple NR-SSB cells with the restriction that the multiple NR-SSB cells are on the same frequency resource / overlapping frequency resource. For example, the maximum number of NR-SSB cells is described as N3. Different lists may be configured for NR-SSB cells on different frequencies. Note that the maximum number of lists is described as N4.

[0151] In the signaled information, a list containing up to N3 "RateMatchPatternNR-SSB"s is provided as shown in Alt. 3 of Figure 12. This single list corresponds to multiple NR-SSB cells with the restriction that the multiple NR-SSB cells are on the same / overlapping frequency resources.

[0152] <Alt. 4> The signaling format based on Proposal 1 above is enhanced to support RM of multiple NR-SSB cells on the same frequency, where multiple signaling may be configured for NR-SSB cells on different / non-overlapping frequencies.

[0153] <Alt. 4-1> In each option of Proposal 1, at least one parameter may be common to multiple NR-SSBs. Also, in each option of Proposal 1, at least one parameter may be in multiple sets, and each set may be for one NR-SSB. For example, in Option 1, multiple "ssb-PositionsInBurst"s are set. For example, in Option 2, the TD RM indication may be common.

[0154] <Alt. 4-2> In each option of Proposal 1, the candidate values ​​may support the configuration of multiple NR-SSB cells. For example, in Option 2, the signaling of the TD RM indication may support a large range to cover the time positions of multiple NR-SSB cells.

[0155] In the signaled information, one "TD-Indication" corresponds to one "RateMatchPatternId" as shown in Alt. 4 of Figure 12. However, as shown in Figure 12, the "TD-Indication" supports a large range to cover the time positions of multiple NR-SSB cells.

[0156] <Alt. 5> The signaling format based on Proposal 1 described above is extended to support RM of multiple NR-SSB cells on different frequencies. Note that the different frequencies may be synchronized, for example, at the TD position of the SSB from a gNB with multiple CCs. Multiple signaling may be configured for NR-SSB cells from another gNB with multiple CCs.

[0157] In each option of Proposal 1, at least one parameter may be common across multiple carriers. Also, at least one parameter may be in multiple sets, with each set being for one frequency. For example, in Option 1, a common "ssb-PositionsInBurst" is set, and multiple center frequencies are indicated. For example, in Option 2, the TD RM indication may be common and a center frequency may be indicated.

[0158] In the signaled information, one "FD-Indication" corresponds to one "RateMatchPatternId" as shown in Alt. 5 of Fig. 12. However, one "FD-Indication" can be used to indicate multiple center frequencies.

[0159] <Alt. 6> The signaling format based on Proposal 1 above is extended to support RM of multiple NR-SSB cells, both on different frequencies and on the same frequency.

[0160] As an idea similar to that of <Alt. 4> and / or <Alt. 5> described above, <Alt. 6> is realized in which at least one parameter is common and at least one parameter is a plurality of sets.

[0161] In a multi-transmission and reception point (MTRP) scenario such as 6G, the above-mentioned <Alt. 1> to <Alt. 6> may be supported for at least one of a set of TRPs, a set of APs, a set of SSBs, and a set of CSI-RSs. Furthermore, the above-mentioned <Alt. 1> to <Alt. 6> may be configured for at least one of a set of TRPs, a set of APs, a set of SSBs, and a set of CSI-RSs. Furthermore, the above-mentioned <Alt. 1> to <Alt. 6> may be associated with at least one of a set of TRPs, a set of APs, a set of SSBs, and a set of CSI-RSs.

[0162] In an MTRP scenario such as 6G, the above-mentioned <Alt. 1> to <Alt. 6> may be supported for a super cell in a cell-free MIMO configuration. Also, the above-mentioned <Alt. 1> to <Alt. 6> may be configured for a super cell in a cell-free MIMO configuration. Also, the above-mentioned <Alt. 1> to <Alt. 6> may be associated with a super cell in a cell-free MIMO configuration.

[0163] In an MTRP scenario such as 6G, the above-mentioned <Alt. 1> to <Alt. 6> may be supported for a portion of a cell / super cell. Furthermore, the above-mentioned <Alt. 1> to <Alt. 6> may be configured for a portion of a cell / super cell. Furthermore, the above-mentioned <Alt. 1> to <Alt. 6> may be configured for a portion of a cell / super cell. For example, a cell / super cell may be replaced with any of a TRP, beam, RS, and QCL / TCI (Quasi Co-Location / Transmission Configuration Indication) state.

[0164] When an RM pattern is configured and associated with a TRP / beam, the UE applies the RM pattern only if the received PDSCH (or PDSCH QCL / TCI state) is also associated with the same TRP / beam. Alternatively, when an RM pattern is configured and associated with a set of TRPs, the UE applies the RM pattern only if the received PDSCH (or PDSCH QCL / TCI state) is also associated with one of the same set of TRPs. Alternatively, when an RM pattern is configured and associated with a set of beams, the UE applies the RM pattern only if the received PDSCH (or PDSCH QCL / TCI state) is also associated with one of the same set of beams.

[0165] One or more RM configurations may further be enabled, disabled, updated, activated, or deactivated by one or more RRC, MAC CE, and / or DCI. For example, one or more RM configurations may further be enabled, disabled, updated, activated, or deactivated per configuration / cell / frequency, etc., by one or more RRC, MAC CE, and / or DCI.

[0166] Different predefined limits on the number of RM configurations around NR-SSB on the same frequency or different frequencies may be supported, similar to NR-LTE DSS.

[0167] <Capabilities of Proposals 1 to 3> As UE capabilities, capabilities related to at least one of the following may be reported from the UE to the network, etc. Whether MRSS with RM setting in a certain frequency / certain band is supported. Whether RM setting around NR-SSB is supported. Whether RM setting around NR-SSB is supported in overlapping or non-overlapping frequencies. The maximum number of RM patterns around NR-SSB or the number of NR-SSB cells configured for RM The maximum number of RM patterns around NR-SSB in overlapping frequencies with a 6G serving cell The maximum number of RM patterns around NR-SSB in non-overlapping frequencies with a 6G serving cell Alt. Maximum number of RM patterns in the list of configurations in 2 / 3 Whether to support RM configurations associated with a cell Whether to support RM configurations associated with a set of TRPs / set of APs / set of SSBs / set of CSI-RS Whether to support RM configurations associated with a super-cell in cell-free MIMO configuration Whether to support RM configurations associated with a part of a cell / super-cell (a cell / super-cell can be, for example, a TRP / beam)

[0168] <Proposal 4> In Proposal 4, for 6G-UE, the configuration of rate matching around CSI-RS (Channel Status Information-Reference Signal) in NR (configuration of rate matching around CSI-RS in NR) is supported. Here, CSI-RS may be P-CSI-RS (periodic-CSI-RS) or SP-CSI-RS (semi-persistent-CSI-RS). This support allows the 6G system to avoid interference with CSI-RS.

[0169] In Proposal 4, the 6G-UE acquires information regarding the rate matching settings around the CSI-RS in the NR and controls 6G communications based on the settings according to the acquired information. Note that the CSI-RS in the NR is an example of a reference signal transmitted by a gNB that supports 5G. Also, information regarding the rate matching settings around the CSI-RS in the NR is an example of information regarding resources used by a gNB that supports 5G to transmit the CSI-RS. Information regarding the rate matching settings around the CSI-RS in the NR may be provided by the NW (e.g., gNB).

[0170] In addition, with regard to the method of providing information regarding rate matching configuration (e.g., signaling format), at least one of the following options may be applied.

[0171] <Option 1 of Proposal 4> In Option 1, a new setting called "RateMatchPatternNR-CSI-RS" is provided to 6G-UE. This setting configures parameters related to the NR-CSI-RS. For example, this setting may be provided by SIB or RRC signaling. "RateMatchPatternNR-CSI-RS" may indicate a rate matching pattern for rate matching around the NR-CSI-RS.

[0172] Under "RateMatchPatternNR-CSI-RS", one or more of the following parameters related to resource configuration of CSI-RS may be provided: nrofPorts Frequency resource information (including RB location, bandwidth, and RE location within RB) Time domain resource information Density SCS

[0173] Note that the above "nrofPorts" indicates the port number (or the number of ports).

[0174] <Option 2 of Proposal 4> In Option 2, a new RRC IE "RateMatchPattern-6G" that is an extension based on the legacy (e.g., NR or LTE) "RateMatchPattern" signaling format is provided to 6G-UE. This new RRC IE "RateMatchPattern-6G" may be used to indicate time domain resources and / or frequency domain resources to provide RM pattern configuration around NR-CSI-RS. Note that this RRC IE may be provided by SIB or RRC signaling.

[0175] Under "RateMatchPattern-6G", an indication for the location of at least one RE within one RB is further provided based on the legacy RB-level indication and symbol-level indication. Alternatively, different granularity for FD / TD indication may be supported.

[0176] <Option 3 of Proposal 4> Option 3 implements RE-level RM configuration by extending legacy ZP-CSI-RS resource configuration, or by extending a combination of legacy RB-level and RE-level indication signaling formats.

[0177] <Option 4 of Proposal 4> In Option 4, RM around the NR-CSI-RS is configured / instructed by referring to other parameters / other settings. The other parameters may be parameters other than parameters related to RM around the NR-CSI-RS. The other parameters may be parameters for other purposes. Furthermore, the other settings may be settings other than settings related to RM around the NR-CSI-RS. The other settings may be settings for other purposes. For example, assuming that NR-CSI-RS measurement settings for intra-F / inter-F measurement are configured in a 6G-UE, such measurement settings may be referenced for RM.

[0178] <Option 4-1 of Proposal 4> In Option 4-1, the RM indication is provided under the above-mentioned NR-CSI-RS measurement configuration. For example, the RM indication may be a one-bit indication for each measurement configuration / NR cell / frequency / band.

[0179] <Option 4-2 of Proposal 4> In Option 4-2, the RM indication is provided in a new RRC IE that is distinct from the above-mentioned NR-CSI-RS measurement configuration. For example, the new RRC IE lists IDs of measurement configuration, NR cell, frequency, band, etc.

[0180] As described above, according to Proposal 4, the setting of rate matching around the CSI-RS in NR is supported for 6G-UE. The 6G-UE acquires information about the setting of rate matching around the CSI-RS in NR and controls 6G communications based on the setting according to the acquired information. This makes it possible to avoid overlap (or collision) with the CSI-RS in NR even when frequencies between NR and 6G are shared, thereby avoiding interference from 6G to the existing NR system.

[0181] <Proposal 5> In Proposal 5, similar to Proposal 1 and Proposal 4 described above, rate matching configuration is supported for at least one of SIB1, other SIBs, paging, CORESETZERO, etc. This avoids interference with signals such as SIB1, other SIBs, paging, CORESETZERO, etc. in NR. Note that the other SIB may be at least one SIB other than SIB1.

[0182] In Proposal 5, the 6G-UE acquires information regarding at least one surrounding rate matching setting such as SIB1, other SIBs, paging, CORESETZERO, etc. in the NR, and controls 6G communications based on the setting according to the acquired information. Note that at least one of SIB1, other SIBs, paging, CORESETZERO, etc. in the NR is an example of information or reference signal transmitted by a gNB supporting 5G. Also, information regarding at least one surrounding rate matching setting such as SIB1, other SIBs, paging, CORESETZERO, etc. in the NR is an example of information regarding resources used by a gNB supporting 5G to transmit at least one of SIB1, other SIBs, paging, CORESETZERO, etc. Information regarding at least one surrounding rate matching setting such as SIB1, other SIBs, paging, CORESETZERO, etc. in the NR may be provided by the NW (e.g., gNB).

[0183] In addition, with regard to the method of providing information regarding rate matching configuration (e.g., signaling format), at least one of the following options may be applied.

[0184] <Option 1 of Proposal 5> In Option 1, a new configuration called "RateMatchPatternNR-certainCH" is provided to 6G-UE. For example, the new configuration of "RateMatchPatternNR-certainCH" may be provided by SIB or by RRC signaling. The new configuration of "RateMatchPatternNR-certainCH" may have detailed T / F resource configuration related to SIB1. The new configuration of "RateMatchPatternNR-certainCH" may have detailed T / F resource configuration related to other SIBs. The new configuration of "RateMatchPatternNR-certainCH" may have detailed T / F resource configuration related to paging. The new configuration of "RateMatchPatternNR-certainCH" may have detailed T / F resource configuration related to CORESET. Note that "certainCH" here may refer to a channel including at least one of SIB1, other SIBs, paging, CORESETZERO, etc. in NR, or may be replaced with a term indicating the channel.

[0185] <Option 2 of Proposal 5> In Option 2, a new RRC IE "RateMatchPattern-6G" that is an extension based on the legacy (e.g., NR or LTE) "RateMatchPattern" signaling format is provided to 6G-UE. This new RRC IE "RateMatchPattern-6G" may be used to provide time domain resource indication and / or frequency domain resource indication. Note that this RRC IE may be provided by SIB or RRC signaling.

[0186] In Option 2, a different granularity may be supported. For example, a granularity more consistent with the granularity of SIB1 / other SIBs / paging / CORESETZERO / etc. may be supported. Also, for example, 2-symbol level granularity / 3-symbol level granularity may be supported for RM indication around CORESET. Also, multiple RB level granularity / PRB level granularity / BW (bandwidth) level granularity / BWP (bandwidth part) level granularity may be supported for RM indication around PDSCH.

[0187] <Option 3 of Proposal 5> In Option 3, RM around a certain channel is configured / instructed by referring to other parameters / other settings. The other parameters may be parameters other than parameters related to RM around a certain channel. The other parameters may be parameters for other purposes. Furthermore, the other settings may be settings other than settings related to RM around a certain channel. The other settings may be settings for other purposes. Note that the "certain channel" here may be a channel including at least one of SIB1 / other SIB / paging / CORESETZERO, etc. Note that since the 6G-UE also has its own signaling formats for settings for SIB1 / other SIB / paging / CORESETZERO, etc., these signaling formats are reused for RM configuration by referring to the config-ID for the channels such as SIB1 / other SIB / paging / CORESETZERO, etc.

[0188] <Variations of Proposal 5> As a variation, the rate matching settings for NR-SSB may be referenced to determine rate matching for NR CORESET #0, SIB1, other SIBs, and paging, etc.

[0189] For example, "information for rate matching of SSB" and "information for the resource relationship between NR-SSB and NR CORESET#0" are referred to in order to determine the rate matching of NR CORESET#0.

[0190] As described above, according to Proposal 5, at least one surrounding rate matching setting such as SIB1, other SIBs, paging, CORESETZERO, etc. in NR is supported for 6G-UE. The 6G-UE acquires information regarding at least one surrounding rate matching setting such as SIB1, other SIBs, paging, CORESETZERO, etc. in NR, and controls 6G communication based on the setting according to the acquired information. As a result, even when frequencies between NR and 6G are shared, 6G communication is performed while avoiding overlap (or collision) with SIB1, other SIBs, paging, CORESETZERO, etc. in NR, thereby avoiding interference from 6G to the existing NR system.

[0191] <Proposal 6> Proposal 6 describes a variation of each of the above proposals.

[0192] <Variation 1 of Proposal 6> The configured RM configuration of different CH / RS in the NR may be enabled, disabled, updated, activated, or deactivated by at least one of RRC, MAC CE, and DCI. Note that the CH / RS in the different CH / RS may be at least one of SSB, SIB1, other SIB, CORESET, etc. Note that only a portion of the parameters may be updated. The update is performed by at least one of RRC, MAC CE, and DCI.

[0193] <Variation 2 of Proposal 6> It is supported that a 6G-UE reads or reuses at least one cell-specific signaling / CH of NR. The signaling / CH is, for example, at least one of NR-SSB, MIB, and SIB.

[0194] Assuming the above that reading or reusing at least one cell-specific signaling / CH of the NR is supported, by the 6G-UE reading certain instructions / settings from the NR, the 6G-UE may interpret the instructions / settings in the NR of a certain CH / RS as RM instructions / settings in the vicinity of the NR-CH / RS for receiving the 6G-PDSCH.

[0195] For example, new explicit signaling will be introduced in 6G to indicate the enable / disable of the above interpretation for RM for 6G-UEs, and the new explicit signaling may be per CH, per RS, or per configuration.

[0196] For example, after reading the resource configuration of the P-CSI-RS via the NR-SIB, the 6G-UE performs RM around the location of the RE of the NR-P-CSI-RS upon explicit signaling instructions.

[0197] <Variation 3 of Proposal 6> When NW ES-related operations are performed in NR, for example, when at least one on-demand transmission or adaptation transmission is performed, at least one of the following alternatives may be used:

[0198] <Alt. 1> The above-mentioned settings related to on-demand transmission or adaptive transmission may also be provided to the 6G-UE. Note that this provision may be performed by at least one of SIB, RRC, MAC CE, and DCI. Furthermore, this provision may determine an RM pattern in the UE, or may update the RM pattern in the UE. Note that the 6G-UE performs RM only for resources in which a certain CH / RS in the NR is actually instructed to be transmitted.

[0199] <Alt. 2> Multiple RM configurations for different adaptation situations may be pre-configured for a 6G-UE. Then, the multiple RM configurations for different adaptation situations may be switched by signaling for switching. Note that this signaling may be performed by at least one of RRC, MAC CE, and DCI.

[0200] Note that <Alt. 1> and <Alt. 2> of Variation 3 of Proposal 6 above may be used in Variation 1 and / or Variation 2 of Proposal 6.

[0201] <Variation 4 of Proposal 6> Distinct RM configuration signaling may be designed for RMs around different CHs / RSs. Alternatively, a common configuration signaling framework may be designed for RMs around different CHs / RSs. For example, based on Option 2 in each of the above proposals (e.g., Proposals 1, 4, and 5), one common configuration signaling framework supports RMs around multiple types of CHs.

[0202] Variation 4 may be applied if different granularity of indication in the time and / or frequency domain is supported by the framework.

[0203] <Variation 5 of Proposal 6> A combination of the above Proposal 3 and the alternative of Proposal 6 may be applied in RM around different CH / RS and / or from different NR-cells and / or from different frequencies. Alternatively, another dimension of CH / RS may be considered in addition to the alternative of Proposal 6. For example, the following examples may be mentioned: - Enhanced signaling format to support RM of multiple NR cells on multiple CHs in one common frequency - Enhanced signaling format to support RM of multiple NR cells on one specific CH in one common frequency - Enhanced signaling format to support RM of multiple NR cells on one specific CH in different frequencies - Enhanced signaling format to support RM of multiple NR cells on multiple CHs in different frequencies

[0204] <Variation 6 of Proposal 6> The RMs around different CHs / RSs may be for any of a set of TRPs, a set of APs, a set of SSBs, and a set of CSI-RSs, as in the MTRP scenario. The RMs around different CHs / RSs may also be for a supercell in a cell-free MIMO setting, as in the MTRP scenario. The RMs around different CHs / RSs may also be for a part of a cell / supercell (e.g., a TRP or a beam), as in the MTRP scenario. The RMs around different CHs / RSs may be configured in association with each other for these purposes.

[0205] <Variation 7 of Proposal 6> Different predefined limits on the number of RM configurations around a CH / RS or multiple CHs / RSs in a common frequency may be supported, similar to NR-LTE DSS. Also, different predefined limits on the number of RM configurations around a CH / RS or multiple CHs / RSs in different frequencies may be supported, similar to NR-LTE DSS.

[0206] <UE Capabilities of Proposals 4 to 6> Information related to at least one of the following may be reported as a capability from a UE to the network. Note that a certain CH / RS may be at least one of NR-CSI-RS, SIB1, other SIBs, paging, and CORESETZERO. - Whether an RM pattern around a certain CH / RS is supported - Whether an RM pattern around multiple CHs / RSs is supported - The maximum number of RM patterns around a certain CH / RS in a frequency that overlaps with a 6G serving cell - The maximum number of RM patterns around multiple CHs / RSs in a frequency that overlaps with a 6G serving cell - The maximum number of RM patterns around a certain CH / RS in a frequency that does not overlap with a 6G serving cell - The maximum number of RM patterns around multiple CHs / RSs in a frequency that does not overlap with a 6G serving cell

[0207] The 6G-UE may support RM configuration around a specific NR CH / RS. For example, the 6G-UE may support RM configuration around a specific NR CH / RS based on at least a specific number of RM patterns.

[0208] <Extension to NR-UE> The above RM configuration may be provided to an NR-UE. By providing the above RM configuration to an NR-UE, interference from NR to 6G periodic signals may be avoided. For example, the 6G periodic signals may be SSB-like signaling, P-CSI-RS signaling, etc. in 6G. UE capability similar to the above UE capability for 6G-UE may be introduced for NR-UE.

[0209] Information is exchanged between the NR and 6G. For example, transmission of 6G-SSB / P-CSI-RS / SIB1 / other SIBs (SIBs other than SIB1) / paging and / or corresponding RM configurations is supported. For example, at least one of these configurations may be transmitted from a 6G-gNB to an NR-gNB via an interface between gNBs (e.g., X2 / Xn). Alternatively, at least one of these configurations may be transmitted via an interface between another NR node (e.g., an NR node other than the NR-gNB) and another 6G node (e.g., a 6G node other than the 6G-gNB).

[0210] <Study Item 2: Rate Matching (Muting) in UL> Proposals 1 to 6 described above show rate matching for DL. According to Proposals 1 to 6, interference from 6G to existing NR systems is avoided in DL. For example, according to Proposals 1 to 6, 6G-UE avoids interference from 6G to NR-CH / RS by setting RM for receiving DL such as PDSCH.

[0211] Consideration item 2 is UL transmission.

[0212] For UL transmissions, UE-specific signaling is based on gNB scheduling, so with appropriate coordination between NR and 6G, interference in the UL may be avoided.

[0213] For example, in an UL slot in which periodic SRS is transmitted from an NR-UE in at least one symbol, when the gNB schedules the 6G UL, the gNB indicates the scheduled resources to avoid overlapping transmissions in the RE dominated by the NR-UE.

[0214] However, due to the restrictions on the pattern of PUSCH resources dictated by the TDRA / FDRA design in DCI, UL resources are not flexibly dictated to govern all of the resources available to 6G-UE.

[0215] One way is to introduce a more flexible and complex FDRA / TDRA indication extension, however, making the FDRA / TDRA indication more complex may result in increased signaling overhead.

[0216] Another approach is to introduce an indication for setting UL RM pattern / muting pattern, so that a simple FDRA / TDRA indication is sufficient.

[0217] Figure 13 is a diagram showing an example of coexistence of NR and 6G in a UL slot. Three cases are shown in Figure 13. The horizontal axis of each case indicates the time axis, and the vertical axis indicates the frequency axis. In each case, 6G resources and NR resources are distinguished by different aspects.

[0218] In case 1, the 6G-gNB can indicate T / F resources for 6G-PUSCH by DCI to avoid overlap with resources governed by NR. However, legacy (e.g., NR or LTE) indications have the following limitations: - Consecutive symbols are indicated in the time domain. - Consecutive RBs are indicated in the frequency domain (e.g., UL RA type 1). - Non-consecutive RBGs are indicated in the frequency domain (e.g., UL RA type 0).

[0219] Therefore, as in Case 1 and Case 2, resources in a continuous range in the time domain and continuous RBs or discontinuous RBGs in the frequency domain are indicated as 6G resources. As a result, as shown in Case 1 and Case 2, there is a possibility that some resources cannot be indicated.

[0220] On the other hand, if the resource for transmitting 6G-PUSCH is instructed to avoid resources controlled by NR, as in Case 3, resource utilization efficiency is improved. However, due to such instructions, it is difficult to introduce complex FDRA / TDRA instructions.

[0221] Rel-19 also considers subband full duplex (SBFD), and uplink muting configuration is being considered for SBFD. For example, the following points were agreed upon regarding UL resource muting for PUSCH: UL resource muting for PUSCH is indicated / determined based on semi-static configuration. Note that, for each assigned PRB, comb-2 for both DFT-S-OFDM and CP-OFDM is assumed, and up to two symbols are assumed in the time domain. Note that no new DCI field / MAC CE is introduced. PUSCH resource mapping, i.e., rate matching around muted REs, UCI resource determination in symbols with muted REs, and UL resource muting is not applied to MsgAPUSChH and Msg3PUSCH. UL resource muting is applied only to the UL in RRC_CONNECTED mode. - The UE assumes that the UL resource muting pattern does not overlap with UL DMRS or PT-RS in the same symbol. - Power boosting is assumed for REs in symbols with UL resource muting. Note that the PUSCH transmit power does not change across symbols. - The transport block size (TBS) determination for PUSCH does not change. - The above UL resource muting is subject to UE capability.

[0222] In SBFD, UL resources are muted for the purpose of facilitating measurement of cross link interference (CLI). Although the purpose is different from that of MRSS, the UE may operate in the same manner as in the RM pattern setting for interference avoidance in MRSS when configuring the UL muting pattern in the UL muting configuration.

[0223] Therefore, in the following embodiment, a method for avoiding interference from 6G to existing NR systems in the UL by introducing instructions for setting UL RM patterns / muting patterns is described.

[0224] <Proposal 7> Proposal 7 supports the configuration of an uplink (UL) rate matching pattern for 6G-UE. This support allows the 6G system to avoid interference with at least one periodic UL signaling in NR. For example, the periodic UL signaling in NR is NR periodic or semi-persistent SRS.

[0225] In Proposal 7, a 6G-UE acquires information regarding the configuration of a UL rate matching pattern, and controls 6G communication based on the configuration according to the acquired information. Note that UL is an example of a signal transmitted by a UE that supports 5G. Furthermore, information regarding the configuration of the UL rate matching pattern is an example of information regarding resources used by a UE that supports 5G to transmit a UL signal. Information regarding the configuration of the UL rate matching pattern may be provided by a NW (e.g., a gNB).

[0226] Regarding the method of providing information about rate matching settings, at least one of the following options may be applied.

[0227] <Option 1 of Proposal 7> In Option 1, a new RRC information element called "RateMatchPatternNR-UL-6G" is provided to 6G-UE. For example, this configuration provides 6G-UE with time-domain and / or frequency-domain resource indication for UL-RM pattern configuration. This configuration may be provided by SIB or RRC signaling.

[0228] For TD, an indication of period and starting offset is provided.

[0229] For TD, a symbol-level indication is provided in each period, e.g., a 14-bit bitmap is used to indicate 14 symbols, and a longer bitmap is used to indicate more symbols in one period.

[0230] For TD, indication of other granularities may be supported in each period, such as 2-symbol level, minislot level, 0.5 slot level, slot level, etc.

[0231] For FD, the bitmap may indicate granularity such as RE level, RB level, RBG level, etc.

[0232] For FD, a long bitmap may be provided to indicate the entire BW at the above granularity. Alternatively, the FD interval is configured to indicate a comb-like pattern in FD. For example, the comb-like pattern in FD is similar to the period in TD. A shorter bitmap may be provided to indicate FD resources within one FD interval or one FD period.

[0233] <Option 2 of Proposal 7> In Option 2, a new RRC information element called "RateMatchPatternNR-SRS-6G" is provided to 6G-UEs. For example, this information element provides 6G-UEs with T / F resource information related to SRS configuration. This configuration may be provided by SIB or RRC signaling.

[0234] The parameters include one or more of the following. Note that the parameters may include the parameters included in the above-mentioned SRS resource configuration: resourceMapping, transmissionComb, nrofSRS-Ports, freqDomainPosition, and freqDomainShift.

[0235] For example, "resourceMapping" indicates the resource of NR-SRS, "transmissionComb" indicates a comb pattern, and "nrofSRS-Ports" indicates the port number (or number of ports) of NR-SRS. For example, "freqDomainPosition" indicates the frequency position of NR-SRS, and "freqDomainShift" indicates the amount of shift in the position in the frequency domain.

[0236] <Option 3 of Proposal 7> In Option 3, UL RM is configured / instructed with reference to other parameters / other settings. The other parameters may be parameters other than parameters related to UL RM. The other parameters may be parameters for other purposes. Furthermore, the other settings may be settings other than settings related to UL RM. The other settings may be settings for other purposes.

[0237] For example, if a 6G-UE has its own signaling format configuration for SRS, this signaling format may be reused for RM configuration by referencing a specific Config-ID for SRS configuration. For example, an SRS-config with ID=8 is configured exclusively for the purpose of RM configuration for the 6G-UE. Then, the RM configuration may include SRS-config-ID 8 for UL RM. Note that in this case, the SRS-config with ID=8 is not a configuration for the 6G-UE's own transmission.

[0238] <Option 4 of Proposal 7> Option 4 provides a new RRC information element that references the signaling of UL muting configuration for subband full duplex (SBFD) in Rel-19 (R19).

[0239] As described above, according to Proposal 7, the setting of the UL rate matching pattern is supported for 6G-UE. The 6G-UE acquires information regarding the setting of the UL rate matching pattern and controls 6G communications based on the setting according to the acquired information. This makes it possible to avoid overlap (or collision) of UL signals (e.g., SRS) even when frequencies are shared between NR and 6G, thereby avoiding interference from 6G to existing NR systems.

[0240] <Proposal 8> In the UL, it is assumed that multiple NR-UEs are transmitting P (periodic)-SRS. It is desirable that the UL RM configuration supports RM configurations around multiple SRS configurations on the same frequency. For example, in a scenario where one 40 MHz 6G and two 20 MHz NRs are shared, the RM pattern takes into account SRSs on different frequencies.

[0241] Figure 14 is a diagram showing examples of RM patterns at the same frequency and at different frequencies. Two cases are shown in Figure 14. In each case, the horizontal axis indicates the time axis, and the vertical axis indicates the frequency axis. In each case, 6G resources and NR resources are distinguished in different ways.

[0242] In case 1, the NR frequency and the 6G frequency are the same frequency, and an RM pattern around the SRS at the same frequency is shown.

[0243] In Case 2, the NR frequency and the 6G frequency are different frequencies. For example, NR is 20 MHz and 6G is 40 MHz. In this Case 2, the RM patterns around the SRS at different frequencies are shown.

[0244] To support RM patterns on the same frequency or different frequencies, any of the following signaling may be provided:

[0245] <Alt. 1> Assuming that the signaling format of Proposal 7 described above is for RM around one SRS configuration, the signaling list in Proposal 7 supports RM around multiple SRS configurations. For example, the maximum number of SRS configurations is written as N. For example, the provided information may include "SEQUENCE (SIZE (1.. MAX_N)) OF RateMatchPatternUL-6G" as a list of "RateMatchPatternUL-6G".

[0246] <Alt. 2> Assuming that the signaling format of Proposal 7 described above is for RMs surrounding one SRS configuration, the signaling list in Proposal 7 supports RMs surrounding multiple SRS configurations with the restriction that the multiple SRS configurations are on different frequency resources. For example, the maximum number of SRS configurations with the restriction that the multiple SRS configurations are on different frequency resources is described as N1. Different lists may be configured for RMs surrounding SRS configurations on the same frequency / overlapping frequencies. Note that the maximum number of lists is described as N2.

[0247] <Alt. 3> Assuming that the signaling format of Proposal 7 described above is for RM around one SRS configuration, the signaling list in Proposal 7 supports RM configuration of multiple SRS configurations with the restriction that the multiple SRS configurations are on the same frequency resource / overlapping frequency resources. For example, the maximum number of SRS configurations with the restriction that the multiple SRS configurations are on the same frequency resource / overlapping frequency resources is described as N3. Different lists may be configured for RM around SRS configurations on different frequencies. Note that the maximum number of lists is described as N4.

[0248] <Alt. 4> To support RM of multiple SRS configurations on one same frequency, the signaling format based on Proposal 7 mentioned above is extended. Multiple signaling may be configured for RM around SRS on different / non-overlapping frequencies.

[0249] <Alt. 4-1> In each option of Proposal 7, at least one parameter may be common to multiple SRS configurations. Also, in each option of Proposal 7, at least one parameter may be in multiple sets, and each set may be for one SRS configuration.

[0250] <Alt. 4-2> In each option of Proposal 7, the candidate value may support RM configuration of multiple SRS configurations. Also, in each option of Proposal 7, the candidate granularity may support RM configuration of multiple SRS configurations.

[0251] <Alt. 5> The signaling format based on Proposal 7 described above is extended to support RM of multiple SRS configurations in different frequencies, which may have the same TD location, for example. Multiple signaling may be configured for SRS configurations with different TD locations in multiple CCs.

[0252] In each option of Proposal 7, at least one parameter may be common across multiple carriers, and at least one parameter may be in multiple sets, each set for one frequency.

[0253] <Alt. 6> The signaling format based on Proposal 7 mentioned above is extended to support RM of multiple SRS configurations, both on different frequencies and on the same frequency.

[0254] As an idea similar to that of <Alt. 4> and / or <Alt. 5> above, at least one parameter may be common, and at least one parameter may be in multiple sets.

[0255] <Proposal 9> The RM configuration in the above-mentioned Proposals 7 and 8 may be associated with and configured to at least one of a TRP set, an AP set, an SSB set, a CSI-RS set, and an SRS set. The RM configuration in the above-mentioned Proposals 7 and 8 may also be associated with and configured to a supercell in a cell-free MIMO configuration. The RM configuration in the above-mentioned Proposals 7 and 8 may also be for a part of a cell / supercell (e.g., TRP, beam, RS, QCL / TCI state). The RM configuration in the above-mentioned Proposals 7 and 8 may also be associated and configured for these.

[0256] The UE applies the RM / muting configuration for UL transmission only if an RM pattern is associated and configured with a TRP / beam and the scheduled PUSCH (or the QCL / TCI state of the PUSCH) is also associated with the same TRP / beam. Also, the UE adopts the RM / muting configuration for UL transmission only if an RM pattern is associated and configured with a set of TRPs / beams and the scheduled PUSCH (or the QCL / TCI state of the PUSCH) is also associated with one TRP / beam from the same set of TRPs / beams.

[0257] One or more UL RM / muting configurations may be enabled, disabled, updated, activated, or deactivated by at least one of RRC, MAC CE, and DCI, and one or more UL RM / muting configurations may be enabled, disabled, updated, activated, or deactivated on a per-configuration, per-cell, or per-frequency basis by at least one of RRC, MAC CE, and DCI.

[0258] Different predefined limits on the number of UL RM / muting settings on a common frequency may be supported, and different predefined limits on the number of UL RM / muting settings on different frequencies may be supported.

[0259] The UE's behavior with respect to the UL rate matching pattern (or UL muting pattern) may be as follows: It is assumed that the 6G-UE does not use the TD / FD resources designated for RM / muting for a dynamic grant (DG) PUSCH / configured grant (CG) PUSCH. It is also assumed that the 6G-UE does not use the TD / FD resources designated for RM / muting for other UL RS / CHs. The other UL RS / CHs may be, for example, a PUCCH, uplink control information (UCI), a PRACH, or a scheduling request (SR). Different behaviors may be configured or predefined for different UL RS / CHs when considering the RM pattern configuration. For example, the different behaviors may be at least one of dropping, postponing, and using a different transmission power control (TPC) loop index.

[0260] Information is exchanged between NR-6G. For example, transmission of NR-SRS / other NR-UL configurations and / or corresponding UL RM configurations from multiple NR-UEs is supported. For example, at least one of these configurations may be transmitted from an NR-gNB to a 6G-gNB via an interface between gNBs (e.g., X2 / Xn). Alternatively, at least one of these configurations may be transmitted via an interface between another NR node (e.g., an NR node other than the NR-gNB) and another 6G node (e.g., a 6G node other than the 6G-gNB).

[0261] <Proposal 10> In MRSS, if the TDD settings for NR-UE and 6G-UE do not match, the UL slot for the 6G-UE may be the DL slot for the NR-UE. In this case, for the UL transmission of the 6G-UE, consider the UL RM around the NR-DL CH / RS. For example, consider that 6G performs UL operation (e.g., PUSCH transmission) based on the RM setting around the CSI-RS in the NR.

[0262] For the setting of the rate matching pattern (or muting pattern) for 6G-UE, the RM pattern is supported to be around the NR DL CH / RS. Note that the NR DL CH / RS may be NR-SSB / SIB1 / other SIB / CORESET, etc. Regarding the method of providing the UL RM setting (e.g., signaling format), any of the following options may be applied.

[0263] <Option 1 of Proposal 10> The signaling format for DL ​​RM configuration shown in any of Proposals 1 to 6 above may be supported for the signaling format for UL RM configuration.

[0264] <Option 2 of Proposal 10> Under the UL RM configuration, the ID of the DL RM configuration from any of the above Proposals 1 to 6 is included in the UL RM configuration. For the RM configuration provided under the UL RM configuration, the UE may apply RM / muting for UL transmissions.

[0265] <UE Capabilities of Proposals 7 to 10> Information related to at least one of the following may be reported from the UE to the network as a capability. Note that here, DL CH / RS may be at least one of NR-CSI-RS, SIB1, other SIB, paging, and CORESETZERO. - Whether UL RM / muting configuration in a certain frequency / band is supported - Whether UL RM / muting configuration for transmission of PUSCH / PUCCH / UCI / PRACH / SR, etc. is supported - Whether UL RM configuration around NR-SRS is supported - The maximum number of RM patterns around NR-SRS - The maximum number of RM patterns around NR-SRS in overlapping frequencies - The maximum number of RM patterns around NR-SRS in non-overlapping frequencies - Alt. 2 and Alt. 3 of Proposal 8 above 3. Maximum number of RM patterns in the list of configurations Whether or not to support UL RM configuration associated with a cell Whether or not to support UL RM configuration associated with at least one of a set of TRPs, a set of APs, a set of SSBs, a set of CSI-RSs, and a set of SRSs Whether or not to support UL RM configuration associated with a super-cell in a cell-free MIMO configuration Whether or not to support UL RM configuration associated with a part of a cell / super-cell (e.g., a cell / super-cell may be a TRP / beam) Whether or not to support RM configuration around a specific DL CH / RS Maximum number of RM patterns around a CH / RS Maximum number of RM patterns around multiple DL CHs / RSs on non-overlapping frequencies

[0266] <Note 0> In this disclosure, "beam" may be replaced with "SSB," "CSI-RS," "TRS," "SRS," "other reference signal," and any of DL / UL / joint TCI states.

[0267] L1-RSRP / L1-SINR may be replaced with L1-RSRQ / L3-RSRP / L3-SINR / L3-RSRQ / filtered L1 measurement / enhanced L1 measurement.

[0268] <Note 1: UE capability> A UE may report at least one of the following capabilities. For example, a UE may report a capability to a network (e.g., a base station). A capability may indicate, for example, whether a proposal (or an option of a proposal, or an alternative of a proposal) is supported. - Capability of each proposal - Capability of each option of a proposal - Capability of a combination of two or more options of a proposal - Capability of each alternative of a proposal - Capability of a combination of two or more alternatives of a proposal

[0269] The UE may report the above capabilities for each frequency. Capabilities may be reported for each UE. Capabilities may be reported for each of FR (frequency range) 1, FR2, FR2-1, FR2-2, and FR3. Capabilities may be reported for each SCS (subcarrier spacing). Capabilities may be reported for each band. Capabilities may be reported for each BC (band combination). Capabilities may be reported for each FC (frequency combination). Capabilities may be reported for each FSPC (Feature Set Per Component-carrier).

[0270] The UE may report the above capabilities for each cell. For example, capabilities may be reported for each UE. Capabilities may be reported for each cell. Capabilities may be reported for each TDD (time division duplex). Capabilities may be reported for each FDD (frequency division duplex). Capabilities may be reported for each TDD and FDD.

[0271] <Note 2: Method for selecting options and combinations> With regard to the present disclosure, at least one of whether to apply a proposal, which proposal to apply, which option (or multiple options) to use, and which alternative (or multiple alternatives) to use may be set by a parameter of a higher layer, may be determined by a parameter of a related higher layer, may be indicated by a MAC CE or DCI, may be determined based on a capability of the UE, or may be defined by a specification. Furthermore, at least one of whether to apply a proposal, which proposal to apply, which option (or multiple options) to use, and which alternative (or multiple alternatives) to use may be based on a condition described in a specification. Furthermore, at least one of whether to apply a proposal, which proposal to apply, which option (or multiple options) to use, and which alternative (or multiple alternatives) to use may be based on a condition described in a specification. Furthermore, at least one of whether to apply a proposal, which proposal is applied, which option(s) to use, and which alternative(s) to use may be determined by at least one of higher layer parameter configuration, MAC CE, DCI, and reported UE capability, or may be determined by a combination of the above.

[0272] In the present disclosure, multiple options and / or multiple alternatives may be combined into one option or one alternative.

[0273] In this disclosure, "Serving" may be replaced with any of "Serving Beam / SpCell", "Serving Beam", "SpCell", and "Serving SpCell".

[0274] <Note 3: Example of signaling from NW to UE> In the present disclosure, a UE may receive at least one of the following types of information from a NW (network). Note that the NW may be replaced by a gNB or a base station. Information via higher layer signaling (e.g., an RRC message, an LPP (LTE Positioning Protocol) message) MAC CE MAC CE having a new LCID (logical channel ID) in the subheader MAC CE extended from an existing MAC CE (e.g., introduction of a new octet) DCI DCI having an existing DCI field and / or a newly introduced DCI field DCI having a CRC (cyclic redundancy check) scrambled by an existing RNTI (Radio Network Temporary Identifier) ​​and / or a newly introduced RNTI DCI having an existing DCI format or a newly introduced DCI format Information of a combination of the above

[0275] In the present disclosure, the UE may receive information of at least one of the following periodic types from the NW: Option 1: Periodically Option 2: Semi-persistent Option 3: Aperiodic Note that the information of type Option 2 or Option 3 may be triggered by the UE or by an instruction from the gNB.

[0276] <Note 4: Example of signaling from UE to NW> In the present disclosure, the UE may report at least one of the following types of information to the NW. Note that the NW may be replaced by a gNB or a base station. Information via higher layer signaling (e.g., RRC message, LPP (LTE Positioning Protocol) message) MAC CE MAC CE with a new LCID (logical channel ID) in the subheader MAC CE extended from existing MAC CE (e.g., introduction of a new octet) UCI ​​UCI of PUCCH or UCI of PUSCH Information of a combination of the above

[0277] In the present disclosure, the UE may report information of at least one of the following periodicity types to the NW: Option 1: Periodically Option 2: Semi-persistent Option 3: Aperiodic Note that the information of type Option 2 or Option 3 may be triggered by the UE or by an instruction from the gNB.

[0278] In the present disclosure, A / B may mean at least one of A and B. In the present disclosure, "A / B / C" may mean "at least one of A, B, and C."

[0279] In the present disclosure, higher layer signaling may be, for example, any one of Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information, etc., or a combination thereof.

[0280] The MAC signaling may use, for example, a MAC Control Element (MAC CE), a MAC Protocol Data Unit (PDU), etc. The broadcast information may be, for example, a Master Information Block (MIB), a System Information Block (SIB), Remaining Minimum System Information (RMSI), Other System Information (OSI), etc.

[0281] The physical layer signaling may be, for example, downlink control information (DCI).

[0282] In the present disclosure, "A overlaps with B," "A overlaps with B," and "at least a portion of A overlaps with at least a portion of B" may be read as interchangeable. Also, "A overlaps with B," and "all or a portion of A overlaps with all or a portion of B" may be read as interchangeable.

[0283] The present disclosure may be applied under at least one of the following conditions: when a UE reports UE capabilities corresponding to at least one function / capability to a NW; and when a UE capability corresponding to at least one function / capability is configured / activated / instructed to the UE by higher layer signaling. The present disclosure may be applied when a specific higher layer parameter is configured / activated / instructed to the UE.

[0284] Next, the configurations of the base station 100 and the terminal 200 will be described. Note that the configurations of the base station 100 and the terminal 200 described below are examples of functions related to this embodiment. The base station 100 and the terminal 200 may have functions not shown. Furthermore, the functional divisions and / or names of the functional units are not limited as long as the functions perform the operations related to this embodiment.

[0285] <Configuration of Base Station> Fig. 15 is a block diagram showing an example of the configuration of base station 100 according to the embodiment. Base station 100 includes, for example, a transmitting unit 101, a receiving unit 102, and a control unit 103. Base station 100 communicates with terminal 200 (see Fig. 16) wirelessly.

[0286] The transmitter 101 transmits a downlink (DL) signal to the terminal 200. For example, the transmitter 101 transmits the DL signal under the control of the controller 103. The transmitter 101 transmits, for example, the various signals, channels, setting information, control information, etc. described in the above embodiments to the terminal 200 as the DL signal.

[0287] The DL signal may include, for example, a downlink data signal and control information (e.g., DCI (Downlink Control Information)). The DL signal may also include information indicating scheduling related to signal transmission of terminal 200 (e.g., an UL grant). The DL signal may also include control information of higher layers (e.g., control information of RRC (Radio Resource Control)). The DL signal may also include a reference signal.

[0288] Channels used for transmitting DL signals include, for example, a data channel and a control channel. For example, the data channel may include a PDSCH (Physical Downlink Shared Channel), and the control channel may include a PDCCH (Physical Downlink Control Channel). For example, the base station 100 transmits control information to the terminal 200 using the PDCCH and transmits downlink data signals using the PDSCH.

[0289] The reference signal included in the DL signal may include at least one of, for example, a Demodulation Reference Signal (DMRS), a Phase Tracking Reference Signal (PTRS), a Channel State Information-Reference Signal (CSI-RS), a Sounding Reference Signal (SRS), and a Positioning Reference Signal (PRS) for position information. For example, reference signals such as the DMRS and PTRS are used for demodulating downlink data signals and are transmitted using the PDSCH.

[0290] The receiving unit 102 receives an uplink (UL) signal transmitted from the terminal 200. For example, the receiving unit 102 receives the UL signal under the control of the control unit 103. The receiving unit 102 receives, for example, a signal related to the PRACH and random access as the UL signal.

[0291] The control unit 103 controls the communication operations of the base station 100, including the transmission processing of the transmission unit 101 and the reception processing of the reception unit 102. For example, the control unit 103 performs operations other than the transmission and reception described in the above embodiment (note that these operations may be performed by the reception unit 102 and / or the transmission unit 101).

[0292] For example, the control unit 103 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 101. The control unit 103 also outputs the data, control information, etc. received from the receiving unit 102 to the upper layer.

[0293] For example, the control unit 103 allocates resources (or channels) used for transmitting and receiving DL signals and / or resources used for transmitting and receiving UL signals based on signals (e.g., data and control information, etc.) received from the terminal 200 and / or data and control information, etc. acquired from a higher layer. Information on the allocated resources may be included in control information transmitted to the terminal 200.

[0294] Control unit 103 configures PUCCH resources as an example of allocation of resources used for transmitting and receiving UL signals. Information related to PUCCH configuration (PUCCH configuration information), such as a PUCCH cell timing pattern, may be reported to terminal 200 by RRC.

[0295] Here, the transmitting unit 101 and the receiving unit 102 (which may be collectively referred to as a communication unit) communicate with the terminal 200 .

[0296] For example, in 6G (an example of a second-generation radio access technology that is a successor to the first generation) that shares frequencies with 5G (an example of a first-generation radio access technology), the base station 100 supports 6G, and the communication unit of the base station 100 transmits information regarding a first resource that the base station supporting 5G uses to transmit a synchronization signal (e.g., NR-SSB). The control unit 103 controls 6G communication based on the information regarding the first resource. Here, the control of 6G communication includes resource allocation, scheduling, etc. for transmitting and receiving 6G DL and / or UL signals. The control of 6G communication also includes transmission processing of 6G DL signals and / or reception processing of 6G UL signals.

[0297] Also, for example, in 6G that shares frequencies with 5G, base station 100 supports 6G, and the communication unit of base station 100 transmits information regarding a first resource used by the base station supporting 5G to transmit control information (for example, SIB1, other SIBs, paging, CORESETZERO) or a reference signal (for example, CSI-RS). Control unit 103 controls 6G communication based on the information regarding the first resource.

[0298] Furthermore, for example, in 6G that shares frequencies with 5G, base station 100 supports 6G, and the communication unit of base station 100 transmits information regarding a first resource that is used by a terminal that supports 5G to transmit a signal (e.g., SRS). Control unit 103 controls 6G communication based on the information regarding the first resource.

[0299] 16 is a block diagram showing an example of the configuration of a terminal 200 according to an embodiment. The terminal 200 includes, for example, a receiving unit 201, a transmitting unit 202, and a control unit 203. The terminal 200 communicates with the base station 100, for example, wirelessly.

[0300] The receiving unit 201 receives a DL signal transmitted from the base station 100. For example, the receiving unit 201 receives the DL signal under the control of the control unit 203.

[0301] The transmitting unit 202 transmits an UL signal to the base station 100. For example, the transmitting unit 202 transmits the UL signal under the control of the control unit 203. For example, the transmitting unit 202 transmits a signal related to the PRACH and random access to the base station 100.

[0302] The UL signal may include, for example, an uplink data signal and control information (e.g., UCI (Uplink Control Information)). For example, information related to the processing capability of the terminal 200 (e.g., capability) may be included. The UL signal may also include a reference signal.

[0303] Channels used for transmitting UL signals include, for example, data channels and control channels. For example, the data channels may include a PUSCH (Physical Uplink Shared Channel), and the control channels may include a PUCCH (Physical Uplink Control Channel). For example, the terminal 200 transmits control information from the base station 100 using the PUCCH and transmits uplink data signals using the PUSCH.

[0304] The reference signal included in the UL signal may include, for example, at least one of a DMRS, a PTRS, a CSI-RS, an SRS, and a PRS. For example, the reference signal such as the DMRS or the PTRS is used for demodulating an uplink data signal and is transmitted using an uplink channel (for example, a PUSCH).

[0305] The control unit 203 controls the communication operations of the terminal 200, including the reception processing in the receiving unit 201 and the transmission processing in the transmitting unit 202. For example, the control unit 203 performs operations other than the transmission and reception described in the above embodiment (note that these operations may be performed by the receiving unit 201 and / or the transmitting unit 202).

[0306] For example, the control unit 203 acquires information such as data and control information from the upper layer and outputs it to the transmitting unit 202. Also, the control unit 203 outputs, for example, the data and control information received from the receiving unit 201 to the upper layer.

[0307] For example, the control unit 203 controls transmission of information to be fed back to the base station 100. The information to be fed back to the base station 100 may include, for example, HARQ ACK / NACK, Channel State Information (CSI), or a Scheduling Request (SR). The information to be fed back to the base station 100 may be included in UCI. The UCI is transmitted, for example, in PUCCH resources.

[0308] Control unit 203 configures PUCCH resources based on configuration information (for example, configuration information such as a PUCCH cell timing pattern and / or DCI notified by RRC) received from base station 100. Control unit 203 determines PUCCH resources to be used for transmitting information to be fed back to base station 100. Under the control of control unit 203, transmission unit 202 transmits the information to be fed back to base station 100 in the PUCCH resources determined by control unit 203.

[0309] Note that the channel used for transmitting the DL signal and the channel used for transmitting the UL signal are not limited to the above-mentioned examples. For example, the channel used for transmitting the DL signal and the channel used for transmitting the UL signal may include a Random Access Channel (RACH) and a Physical Broadcast Channel (PBCH). The RACH may be used to transmit DCI including a Random Access Radio Network Temporary Identifier (RA-RNTI), for example.

[0310] Here, the receiving unit 201 and the transmitting unit 202 (which may be collectively referred to as a communication unit) communicate with a network such as the base station 100 .

[0311] For example, in 6G (an example of a second-generation radio access technology that is a successor to the first generation) that shares frequencies with 5G (an example of a first-generation radio access technology), terminal 200 supports 6G, and the communication unit of terminal 200 receives information regarding a first resource used by a base station that supports 5G to transmit a synchronization signal (e.g., NR-SSB). Control unit 203 controls 6G communication based on the information regarding the first resource. Here, control of 6G communication includes resource allocation, scheduling, etc. for transmitting and receiving 6G DL and / or UL signals. Control of 6G communication also includes transmission processing of 6G DL signals and / or reception processing of 6G UL signals.

[0312] Furthermore, for example, in 6G that shares frequencies with 5G, terminal 200 supports 6G, and the communication unit of terminal 200 receives information regarding a first resource used by a base station supporting 5G to transmit control information (e.g., SIB1, other SIBs, paging, CORESETZERO) or a reference signal (e.g., CSI-RS). Control unit 203 controls 6G communication based on the information regarding the first resource.

[0313] Furthermore, for example, in 6G that shares frequencies with 5G, terminal 200 supports 6G, and the communication unit of base station 100 receives information regarding a first resource used by the terminal supporting 5G to transmit a signal (e.g., SRS). Control unit 203 controls 6G communication based on the information regarding the first resource.

[0314] The present disclosure has been described above. Note that the division of items in the above description is not essential to the present disclosure, and items described in two or more items may be used in combination as needed, and items described in one item may be applied to items described in another item (unless they are inconsistent).

[0315] <Hardware Configuration, etc.> The block diagrams used to explain the above embodiments show functional blocks. These functional blocks (components) are realized by any combination of at least one of hardware and software. Furthermore, the method for realizing each functional block is not particularly limited. That is, each functional block may be realized using a single device that is physically or logically coupled, or may be realized using two or more physically or logically separated devices that are directly or indirectly connected (e.g., using wires, wirelessly, etc.) and these multiple devices. The functional block may also be realized by combining software with the single device or the multiple devices.

[0316] Functions include, but are not limited to, judgment, determination, assessment, calculation, computation, processing, derivation, investigation, search, confirmation, reception, transmission, output, access, resolution, selection, selection, establishment, comparison, assumption, expectation, consideration, broadcasting, notifying, communicating, forwarding, configuring, reconfiguring, allocating, mapping, and assignment. For example, a functional block (component) that performs transmission is called a transmitting unit or transmitter. As mentioned above, there are no particular limitations on how these functions are implemented.

[0317] For example, a base station, a terminal, or the like according to an embodiment of the present disclosure may function as a computer that performs processing of the wireless communication method of the present disclosure. Fig. 17 is a diagram illustrating an example of the hardware configuration of a base station and a terminal according to the embodiment. The above-described base station 100 and terminal 200 may be physically configured as a computer device including a processor 1001, a memory 1002, a storage 1003, a communication device 1004, an input device 1005, an output device 1006, a bus 1007, and the like.

[0318] In the following description, the term "apparatus" can be interpreted as a circuit, a device, a unit, etc. The hardware configuration of base station 100 and terminal 200 may be configured to include one or more of the apparatuses shown in the drawings, or may be configured to exclude some of the apparatuses.

[0319] Each function in the base station 100 and the terminal 200 is realized by loading specified software (programs) onto hardware such as the processor 1001 and the memory 1002, causing the processor 1001 to perform calculations, control communication by the communication device 1004, and control at least one of reading and writing data in the memory 1002 and the storage 1003.

[0320] The processor 1001 controls the entire computer by running, for example, an operating system. The processor 1001 may be configured by a central processing unit (CPU) including an interface with peripheral devices, a control device, an arithmetic unit, a register, etc. For example, the above-mentioned control unit 103 and control unit 203 may be realized by the processor 1001.

[0321] Furthermore, the processor 1001 reads programs (program codes), software modules, data, etc. from at least one of the storage 1003 and the communication device 1004 into the memory 1002 and executes various processes in accordance with these. The programs used are those that cause a computer to execute at least some of the operations described in the above-described embodiments. For example, the control unit 103 of the base station 100 and the control unit 203 of the terminal 200 may be implemented by a control program stored in the memory 1002 and running on the processor 1001, and similar implementations may be made for other functional blocks. While the above-described various processes have been described as being executed by one processor 1001, they may also be executed simultaneously or sequentially by two or more processors 1001. The processor 1001 may be implemented by one or more chips. The programs may also be transmitted from a network via a telecommunications line.

[0322] The memory 1002 is a computer-readable recording medium and may be configured by, for example, at least one of a read-only memory (ROM), an erasable programmable ROM (EPROM), an electrically erasable programmable ROM (EEPROM), a random access memory (RAM), etc. The memory 1002 may also be called a register, a cache, a main memory (primary storage device), etc. The memory 1002 can store executable programs (program codes), software modules, etc. for implementing a wireless communication method according to an embodiment of the present disclosure.

[0323] Storage 1003 is a computer-readable recording medium, and may be composed of at least one of, for example, an optical disk such as a CD-ROM (Compact Disc ROM), a hard disk drive, a flexible disk, a magneto-optical disk (e.g., a compact disk, a digital versatile disk, a Blu-ray (registered trademark) disk), a smart card, a flash memory (e.g., a card, a stick, a key drive), a floppy (registered trademark) disk, a magnetic strip, etc. Storage 1003 may also be referred to as an auxiliary storage device. The above-mentioned storage medium may be, for example, a database, a server, or other appropriate medium including at least one of memory 1002 and storage 1003.

[0324] The communication device 1004 is hardware (transmission / reception device) for communicating between computers via at least one of a wired network and a wireless network, and is also referred to as, for example, a network device, a network controller, a network card, a communication module, etc. The communication device 1004 may be configured to include a high-frequency switch, a duplexer, a filter, a frequency synthesizer, etc. to realize at least one of frequency division duplex (FDD) and time division duplex (TDD). For example, the above-mentioned transmitter 101, receiver 102, receiver 201, transmitter 202, etc. may be realized by the communication device 1004.

[0325] The input device 1005 is an input device (e.g., a keyboard, a mouse, a microphone, a switch, a button, a sensor, etc.) that receives input from the outside. The output device 1006 is an output device (e.g., a display, a speaker, an LED lamp, etc.) that outputs to the outside. The input device 1005 and the output device 1006 may be integrated into one device (e.g., a touch panel).

[0326] Furthermore, each device, such as the processor 1001 and the memory 1002, is connected by a bus 1007 for communicating information. The bus 1007 may be configured using a single bus, or may be configured using different buses between each device.

[0327] Furthermore, base station 100 and terminal 200 may be configured to include hardware such as a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a programmable logic device (PLD), or a field programmable gate array (FPGA), and some or all of the functional blocks may be realized by the hardware. For example, processor 1001 may be implemented using at least one of these pieces of hardware.

[0328] <Notification of Information, Signaling> Notification of information is not limited to the embodiments described in the present disclosure and may be performed using other methods. For example, notification of information may be performed by physical layer signaling (e.g., Downlink Control Information (DCI), Uplink Control Information (UCI)), higher layer signaling (e.g., Radio Resource Control (RRC) signaling, Medium Access Control (MAC) signaling, broadcast information (Master Information Block (MIB), System Information Block (SIB))), other signals, or a combination thereof. Furthermore, RRC signaling may be referred to as an RRC message, and may be, for example, an RRC Connection Setup message, an RRC Connection Reconfiguration message, or the like.

[0329] <Applicable Systems> The embodiments described in the present disclosure are applicable to LTE (Long Term Evolution), LTE-Advanced (LTE-A), SUPER 3G, IMT-Advanced, 4G (4th generation mobile communication system), 5G (5th generation mobile communication system), 6th generation mobile communication system (6G), xth generation mobile communication system (xG) (xG (x is, for example, an integer or a decimal)), FRA (Future Radio Access), NR (new Radio), New radio access (NX), Future generation radio access (FX), W-CDMA (registered trademark), GSM (registered trademark), CDMA2000, UMB (Ultra Mobile Broadband), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.17 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (Wi-Fi (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (Wi-Fi (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark)), IEEE 802.34 (WiMAX (registered trademark The present invention may be applied to at least one of systems using 802.20, UWB (Ultra-Wide Band), Bluetooth (registered trademark), or other suitable systems, and next-generation systems that are extended, modified, created, or defined based on these systems. The present invention may also be applied to a combination of multiple systems (e.g., a combination of LTE and / or LTE-A with 5G).

[0330] <Processing Procedures, etc.> The processing procedures, sequences, flowcharts, etc. of each aspect / embodiment described in this disclosure may be rearranged unless inconsistent. For example, the methods described in this disclosure present elements of various steps using an example order, and are not limited to the particular order presented.

[0331] <Operation of Base Station> In the present disclosure, specific operations described as being performed by a base station may also be performed by its upper node in some cases. In a network consisting of one or more network nodes having a base station, it is clear that various operations performed for communication with a terminal may be performed by at least one of the base station and another network node other than the base station (for example, an MME or an S-GW, etc., but are not limited to these). Although the above example illustrates a case where there is one other network node other than the base station, a combination of multiple other network nodes (for example, an MME and an S-GW) may also be used.

[0332] <Direction of Input / Output> Information, etc. (see <Information, Signal>) can be output from a higher layer (or a lower layer) to a lower layer (or a higher layer). It may also be input / output via multiple network nodes.

[0333] <Handling of Input / Output Information, etc.> Input / output information, etc. may be stored in a specific location (for example, memory) or may be managed using a management table. Input / output information, etc. may be overwritten, updated, or added. Output information, etc. may be deleted. Input information, etc. may be sent to another device.

[0334] <Determination method> The determination may be made based on a value represented by one bit (0 or 1), a Boolean value (true or false), or a numerical comparison (e.g., comparison with a predetermined value).

[0335] <Variations of Aspects, etc.> Each aspect / embodiment described in the present disclosure may be used alone, in combination, or switched depending on the implementation. In addition, notification of predetermined information (e.g., notification that "X is true") is not limited to being done explicitly, but may be done implicitly (e.g., by not notifying the predetermined information).

[0336] Although the present disclosure has been described in detail above, it is clear to those skilled in the art that the present disclosure is not limited to the embodiments described herein. The present disclosure can be implemented in modified and altered forms without departing from the spirit and scope of the present disclosure as defined by the claims. Therefore, the description of the present disclosure is intended to be illustrative and does not have any limiting meaning on the present disclosure.

[0337] <Software> Software shall be construed broadly to mean instructions, instruction sets, code, code segments, program code, programs, subprograms, software modules, applications, software applications, software packages, routines, subroutines, objects, executable files, threads of execution, procedures, functions, etc., whether referred to as software, firmware, middleware, microcode, hardware description language, or otherwise.

[0338] Software, instructions, information, etc. may also be transmitted or received over a transmission medium. For example, if software is transmitted from a website, server, or other remote source using wired technologies (such as coaxial cable, fiber optic cable, twisted pair, Digital Subscriber Line (DSL)), and / or wireless technologies (such as infrared, microwave), then these wired and / or wireless technologies are included within the definition of transmission media.

[0339] Information, Signals, etc., described in this disclosure may be represented using any of a variety of different technologies. For example, data, instructions, commands, information, signals, bits, symbols, chips, etc., which may be referred to throughout the above description, may be represented by voltages, currents, electromagnetic waves, magnetic fields or magnetic particles, optical fields or photons, or any combination thereof.

[0340] Note that terms described in this disclosure and terms necessary for understanding this disclosure may be replaced with terms having the same or similar meanings. For example, at least one of a channel and a symbol may be a signal (signaling). Furthermore, a signal may be a message. Furthermore, a component carrier (CC) may be called a carrier frequency, a cell, a frequency carrier, etc.

[0341] <System, Network> As used in this disclosure, the terms "system" and "network" are used interchangeably.

[0342] <Parameter and Channel Names> Furthermore, the information, parameters, and the like described in the present disclosure may be expressed using absolute values, relative values ​​from a predetermined value, or other corresponding information. For example, a radio resource may be indicated by an index.

[0343] The names used for the above-described parameters are not intended to be limiting in any way. Furthermore, the mathematical expressions using these parameters may differ from those explicitly disclosed in this disclosure. The various channels (e.g., PUCCH, PDCCH, etc.) and information elements may be identified by any suitable names, and therefore the various names assigned to these various channels and information elements are not intended to be limiting in any way.

[0344] <Base Station> In the present disclosure, terms such as "base station (BS)," "radio base station," "fixed station," "NodeB," "eNodeB (eNB)," "gNodeB (gNB)," "access point," "transmission point," "reception point," "transmission / reception point," "cell," "sector," "cell group," "carrier," and "component carrier" may be used interchangeably. A base station may also be referred to by terms such as a macrocell, a small cell, a femtocell, and a picocell.

[0345] A base station can accommodate one or more (e.g., three) cells. When a base station accommodates multiple cells, the overall coverage area of ​​the base station can be partitioned into multiple smaller areas, and each smaller area can also be provided with communication services by a base station subsystem (e.g., a remote radio head (RRH)). The terms "cell" or "sector" refer to part or the entire coverage area of ​​a base station and / or base station subsystem that provides communication services within that coverage area.

[0346] In the present disclosure, the base station transmitting information to a terminal may be interpreted as the base station instructing the terminal to control or operate based on the information.

[0347] Mobile Station In this disclosure, the terms "Mobile Station (MS)," "user terminal," "User Equipment (UE)," "terminal," and the like may be used interchangeably.

[0348] A mobile station may also be referred to by those skilled in the art as a subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable terminology.

[0349] <Base Station / Mobile Station> At least one of the base station and the mobile station may be referred to as a transmitting device, a receiving device, a communication device, etc. At least one of the base station and the mobile station may be a device mounted on a mobile object, the mobile object itself, etc. The mobile object refers to a movable object, and may move at any speed. Naturally, this also includes cases where the mobile object is stationary. Examples of the mobile object include, but are not limited to, vehicles, transport vehicles, automobiles, motorcycles, bicycles, connected cars, excavators, bulldozers, wheel loaders, dump trucks, forklifts, trains, buses, handcars, rickshaws, ships and other watercraft, airplanes, rockets, satellites, drones (registered trademark), multicopters, quadcopters, balloons, and objects mounted thereon. The mobile object may also be a mobile object that moves autonomously based on an operational command. It may be a vehicle (e.g., a car, an airplane, etc.), an unmanned mobile object (e.g., a drone, an autonomous vehicle, etc.), or a robot (manned or unmanned). At least one of the base station and the mobile station may be a device that does not necessarily move during communication operations. For example, at least one of the base station and the mobile station may be an IoT (Internet of Things) device such as a sensor.

[0350] Furthermore, the base station in the present disclosure may be read as a terminal. For example, the embodiments of the present disclosure may be applied to a configuration in which communication between a base station and a terminal is replaced with communication between multiple terminals (which may be called, for example, Device-to-Device (D2D) or Vehicle-to-Everything (V2X)). In this case, the terminal 200 may be configured to have the functions of the base station 100 described above. Furthermore, terms such as "uplink" and "downlink" may be read as terms corresponding to communication between terminals (for example, "side"). For example, terms such as an uplink channel and a downlink channel may be read as a side channel.

[0351] Similarly, the term "terminal" in the present disclosure may be read as "base station." In this case, the base station 100 may be configured to have the functions of the terminal 200 described above.

[0352] Fig. 18 shows an example configuration of a vehicle 2001. As shown in Fig. 18, the vehicle 2001 includes a drive unit 2002, a steering unit 2003, an accelerator pedal 2004, a brake pedal 2005, a shift lever 2006, front wheels 2007, rear wheels 2008, an axle 2009, an electronic control unit 2010, various sensors 2021 to 2029, an information service unit 2012, and a communication module 2013. Each aspect / embodiment described in the present disclosure may be applied to a communication device mounted on the vehicle 2001, and may be applied to the communication module 2013, for example.

[0353] The drive unit 2002 is configured, for example, by an engine, a motor, or a hybrid of an engine and a motor. The steering unit 2003 includes at least a steering wheel (also called a handle) and is configured to steer at least one of the front wheels and the rear wheels based on the operation of the steering wheel operated by the user.

[0354] The electronic control unit 2010 is composed of a microprocessor 2031, a memory (ROM, RAM) 2032, and a communication port (IO port) 2033. Signals are input to the electronic control unit 2010 from various sensors 2021 to 2029 provided in the vehicle 2001. The electronic control unit 2010 may also be called an ECU (Electronic Control Unit).

[0355] The signals from the various sensors 2021 to 2029 include a current signal from a current sensor 2021 that senses the current of the motor, a rotation speed signal of the front and rear wheels obtained by a rotation speed sensor 2022, an air pressure signal of the front and rear wheels obtained by an air pressure sensor 2023, a vehicle speed signal obtained by a vehicle speed sensor 2024, an acceleration signal obtained by an acceleration sensor 2025, an accelerator pedal depression amount signal obtained by an accelerator pedal sensor 2029, a brake pedal depression amount signal obtained by a brake pedal sensor 2026, a shift lever operation signal obtained by a shift lever sensor 2027, and a detection signal for detecting obstacles, vehicles, pedestrians, etc. obtained by an object detection sensor 2028.

[0356] The information service unit 2012 is composed of various devices, such as a car navigation system, an audio system, speakers, a television, and a radio, for providing (outputting) various types of information, such as driving information, traffic information, and entertainment information, and one or more ECUs that control these devices. The information service unit 2012 provides various types of multimedia information and multimedia services to the occupants of the vehicle 2001 by using information acquired from external devices via the communication module 2013, etc.

[0357] The information service unit 2012 may include input devices (e.g., keyboards, mice, microphones, switches, buttons, sensors, touch panels, etc.) that accept input from the outside, and may also include output devices (e.g., displays, speakers, LED lamps, touch panels, etc.) that output to the outside.

[0358] The driving assistance system unit 2030 is composed of various devices that provide functions for preventing accidents and reducing the driving burden on the driver, such as millimeter-wave radar, LiDAR (Light Detection and Ranging), cameras, positioning locators (e.g., GNSS, etc.), map information (e.g., high-definition (HD) maps, autonomous vehicle (AV) maps, etc.), gyro systems (e.g., IMU (Inertial Measurement Unit), INS (Inertial Navigation System), etc.), AI (Artificial Intelligence) chips, and AI processors, as well as one or more ECUs that control these devices. In addition, the driving assistance system unit 2030 transmits and receives various information via the communication module 2013 to realize the driving assistance function or the autonomous driving function.

[0359] The communication module 2013 can communicate with the microprocessor 2031 and components of the vehicle 2001 via the communication port. For example, the communication module 2013 transmits and receives data via the communication port 2033 to and from the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, microprocessor 2031 and memory (ROM, RAM) 2032 in the electronic control unit 2010, and sensors 2021 to 29, which are provided in the vehicle 2001.

[0360] The communication module 2013 is a communication device that can be controlled by the microprocessor 2031 of the electronic control unit 2010 and can communicate with an external device. For example, it transmits and receives various information to and from the external device via wireless communication. The communication module 2013 may be located either inside or outside the electronic control unit 2010. The external device may be, for example, a base station, a mobile station, or the like.

[0361] The communication module 2013 may transmit at least one of signals from the above-mentioned various sensors 2021 to 2029 input to the electronic control unit 2010, information obtained based on the signals, and information based on input from the outside (user) obtained via the information service unit 2012 to an external device via wireless communication. The electronic control unit 2010, the various sensors 2021 to 2029, the information service unit 2012, etc. may be referred to as input units that accept input. For example, the PUSCH transmitted by the communication module 2013 may include information based on the above-mentioned input.

[0362] The communication module 2013 receives various information (traffic information, traffic signal information, vehicle distance information, etc.) transmitted from an external device and displays it on the information service unit 2012 provided in the vehicle 2001. The information service unit 2012 may also be called an output unit that outputs information (for example, outputs information to a device such as a display or speaker based on the PDSCH received by the communication module 2013 (or data / information decoded from the PDSCH)).

[0363] Furthermore, the communication module 2013 stores various information received from external devices in a memory 2032 that can be used by the microprocessor 2031. Based on the information stored in the memory 2032, the microprocessor 2031 may control the drive unit 2002, steering unit 2003, accelerator pedal 2004, brake pedal 2005, shift lever 2006, front wheels 2007, rear wheels 2008, axle 2009, sensors 2021 to 2029, and the like provided in the vehicle 2001.

[0364] <Meaning and Interpretation of Terms> As used in this disclosure, the terms "determining" and "determining" may encompass a wide variety of actions. "Determining" and "determining" may include, for example, judging, calculating, computing, processing, deriving, investigating, looking up, searching, inquiring (e.g., searching a table, database, or other data structure), ascertaining something that is considered to be a "judging" or "determining," and the like. "Determining" and "determining" may also include receiving (e.g., receiving information), transmitting (e.g., sending information), input, output, accessing (e.g., accessing data in memory), and the like that are considered to be a "judging" or "determining." Furthermore, "judgment" and "decision" can include regarding resolving, selecting, choosing, establishing, comparing, etc. as having been "judged" or "decided." In other words, "judgment" and "decision" can include regarding some action as having been "judged" or "decided." Furthermore, "judgment (decision)" can be interpreted as "assuming," "expecting," "considering," etc.

[0365] The terms "connected," "coupled," or any variation thereof, refer to any direct or indirect connection or coupling between two or more elements, and may include the presence of one or more intermediate elements between two elements that are "connected" or "coupled" to each other. The coupling or connection between elements may be physical, logical, or a combination thereof. For example, "connected" may be read as "access." As used in this disclosure, two elements may be considered to be "connected" or "coupled" to each other using one or more wires, cables, and / or printed electrical connections, as well as electromagnetic energy having wavelengths in the radio frequency range, microwave range, and optical (both visible and invisible) range, as some non-limiting and non-exhaustive examples.

[0366] <Reference Signal> A reference signal can also be abbreviated as RS (Reference Signal), and may also be called a pilot depending on the applicable standard.

[0367] <Meaning of "based on"> As used in this disclosure, the phrase "based on" does not mean "based only on," unless expressly stated otherwise. In other words, the phrase "based on" means both "based only on" and "based at least on."

[0368] "First," "Second" Any reference to an element using designations such as "first," "second," etc., used in this disclosure does not generally limit the quantity or order of those elements. These designations may be used in this disclosure as a convenient method of distinguishing between two or more elements. Thus, a reference to a first and a second element does not imply that only two elements may be employed or that the first element must precede the second element in some way.

[0369] <Means> The "means" in the configuration of each device above may be replaced with "section," "circuit," "device," etc.

[0370] Open Format: When the terms "include," "including," and variations thereof are used in this disclosure, these terms are intended to be inclusive, similar to the term "comprising." Furthermore, when the term "or" is used in this disclosure, it is not intended to be an exclusive or.

[0371] <Time Units such as TTI, Frequency Units such as RB, and Radio Frame Configuration> A radio frame may be composed of one or more frames in the time domain. Each of the one or more frames in the time domain may be called a subframe. A subframe may further be composed of one or more slots in the time domain. A subframe may have a fixed time length (e.g., 1 ms) that is independent of numerology.

[0372] Numerology may be a communication parameter that applies to the transmission and / or reception of a signal or channel, and may indicate, for example, at least one of subcarrier spacing (SCS), bandwidth, symbol length, cyclic prefix length, transmission time interval (TTI), number of symbols per TTI, radio frame structure, specific filtering operations performed by the transceiver in the frequency domain, and specific windowing operations performed by the transceiver in the time domain.

[0373] A slot may be composed of one or more symbols in the time domain (such as an Orthogonal Frequency Division Multiplexing (OFDM) symbol or a Single Carrier Frequency Division Multiple Access (SC-FDMA) symbol). A slot may be a time unit based on numerology.

[0374] A slot may include multiple minislots. Each minislot may consist of one or multiple symbols in the time domain. A minislot may also be called a subslot. A minislot may consist of fewer symbols than a slot. A PDSCH (or PUSCH) transmitted in a time unit larger than a minislot may be called PDSCH (or PUSCH) mapping type A. A PDSCH (or PUSCH) transmitted using a minislot may be called PDSCH (or PUSCH) mapping type B.

[0375] The radio frame, subframe, slot, minislot, and symbol all represent time units for transmitting signals, and may be referred to by other names corresponding to the radio frame, subframe, slot, minislot, and symbol.

[0376] For example, one subframe may be called a transmission time interval (TTI), multiple consecutive subframes may be called a TTI, or one slot or one minislot may be called a TTI. That is, at least one of the subframe and the TTI may be a subframe (1 ms) in existing LTE, a period shorter than 1 ms (for example, 1-13 symbols), or a period longer than 1 ms. Note that the unit representing the TTI may be called a slot, minislot, etc. instead of a subframe.

[0377] Here, TTI refers to, for example, the smallest time unit for scheduling in wireless communication. For example, in an LTE system, a base station performs scheduling to allocate radio resources (such as frequency bandwidth and transmission power that can be used by each user terminal) to each user terminal in TTI units. Note that the definition of TTI is not limited to this.

[0378] The TTI may be a transmission time unit for a channel-encoded data packet (transport block), a code block, a code word, etc., or may be a processing unit for scheduling, link adaptation, etc. When a TTI is given, the time interval (e.g., the number of symbols) to which a transport block, a code block, a code word, etc. is actually mapped may be shorter than the TTI.

[0379] When one slot or one minislot is called a TTI, one or more TTIs (i.e., one or more slots or one or more minislots) may be the minimum time unit for scheduling. Also, the number of slots (minislots) constituting the minimum time unit for scheduling may be controlled.

[0380] A TTI having a time length of 1 ms may be called a regular TTI (TTI in LTE Rel. 8-12), normal TTI, long TTI, regular subframe, normal subframe, long subframe, slot, etc. A TTI shorter than a regular TTI may be called a shortened TTI, short TTI, partial or fractional TTI, shortened subframe, short subframe, minislot, subslot, slot, etc.

[0381] In addition, a long TTI (e.g., a normal TTI, a subframe, etc.) may be interpreted as a TTI having a time length of more than 1 ms, and a short TTI (e.g., a shortened TTI, etc.) may be interpreted as a TTI having a TTI length shorter than the TTI length of a long TTI and greater than or equal to 1 ms.

[0382] A resource block (RB) is a resource allocation unit in the time domain and the frequency domain, and may include one or more consecutive subcarriers in the frequency domain. The number of subcarriers included in an RB may be the same regardless of numerology, for example, 12. The number of subcarriers included in an RB may be determined based on numerology.

[0383] The time domain of an RB may include one or more symbols and may have a length of one slot, one minislot, one subframe, or one TTI. One TTI, one subframe, etc. may each be composed of one or more resource blocks.

[0384] Note that one or more RBs may also be called a physical resource block (PRB), a sub-carrier group (SCG), a resource element group (REG), a PRB pair, an RB pair, etc.

[0385] Furthermore, a resource block may be composed of one or more resource elements (REs). For example, one RE may be a radio resource region of one subcarrier and one symbol.

[0386] A Bandwidth Part (BWP) (which may also be referred to as a fractional bandwidth) may represent a subset of contiguous common resource blocks (RBs) for a given numerology on a given carrier, where the common RBs may be identified by their index relative to a Common Reference Point of the carrier. PRBs may be defined in a BWP and numbered within the BWP.

[0387] The BWP may include a BWP for UL (UL BWP) and a BWP for DL ​​(DL BWP). One or more BWPs may be configured for a UE within one carrier.

[0388] At least one of the configured BWPs may be active, and the UE may not expect to transmit or receive a given signal / channel outside the active BWP. Note that the terms "cell," "carrier," etc. in this disclosure may be read as "BWP."

[0389] The above-described structures of radio frames, subframes, slots, minislots, symbols, etc. are merely examples, and various changes may be made to the number of subframes included in a radio frame, the number of slots per subframe or radio frame, the number of minislots included in a slot, the number of symbols and RBs included in a slot or minislot, the number of subcarriers included in an RB, the number of symbols in a TTI, the symbol length, the cyclic prefix (CP) length, etc.

[0390] <Maximum Transmit Power> The "maximum transmit power" in the present disclosure may refer to the maximum value of transmit power, the nominal UE maximum transmit power, or the rated UE maximum transmit power.

[0391] Articles In this disclosure, where articles are added by translation, such as a, an, and the in English, the disclosure may include that the nouns following these articles are plural.

[0392] <"Different"> In the present disclosure, the term "A and B are different" may mean "A and B are different from each other." Note that the term may also mean "A and B are each different from C." Terms such as "separate" and "coupled" may also be interpreted in the same way as "different."

[0393] One aspect of the present disclosure is useful in wireless communication systems.

[0394] 100 Base station 200 Terminal 101, 202 Transmitter 102, 201 Receiver 103, 203 Controller

Claims

1. A terminal that shares frequencies with a first generation radio access technology and supports a second generation radio access technology that is a successor to the first generation, comprising: a communication unit that receives information regarding a first resource used by a base station that supports the first generation radio access technology to transmit control information or a reference signal; and a control unit that controls communication of the second generation radio access technology based on the information regarding the first resource.

2. The terminal according to claim 1, wherein the information about the first resource is information extended based on information about a rate match pattern in the first generation.

3. The terminal according to claim 1, wherein the control information is at least one of SIB (system information block) 1, an SIB other than SIB 1, paging, and CORESET (control resource set).

4. The terminal according to claim 1, wherein the reference signal is a channel state information reference signal (CSI-RS).

5. A first base station that shares frequencies with a first generation radio access technology and supports a second generation radio access technology that is a successor to the first generation, comprising: a communication unit that transmits information regarding a first resource used by a second base station that supports the first generation radio access technology to transmit control information or a reference signal; and a control unit that controls communication of the second generation radio access technology based on the information regarding the first resource.

6. A wireless communication method in which a terminal that shares frequencies with a first-generation wireless access technology and supports a second-generation wireless access technology that is a successor to the first-generation wireless access technology receives information about a first resource used by a base station that supports the first-generation wireless access technology to transmit control information or a reference signal, and controls communication of the second-generation wireless access technology based on the information about the first resource.

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