Method and apparatus for transmitting and receiving signals, and communication system

Abstract

An embodiment of the present disclosure provides an apparatus and method for transmitting and receiving a signal, and a communication system, wherein the apparatus for transmitting and receiving a signal is applied to a network device, and includes a first transceiver configured to transmit indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB), where when a subcarrier spacing of the SSB is 960 kHz, the indication information does not indicate a frequency domain location corresponding to a synchronization raster having a predetermined global synchronization channel number (GSCN).

Description

[Technical Field]

[0001] The present disclosure relates to the field of communications technology. [Background technology]

[0002] The system information (SI) includes a master information block (MIB) and a system information block (SIB), which are divided into minimum system information (SI) and other system information. The minimum SI includes basic information required for initial access and information required for a terminal device to acquire other SIs. The minimum SI may also include the MIB and SIB1.

[0003] During the initial access procedure or to access the serving cell's Automatic Neighbor Cell Relation (ANR) information, the terminal device receives a synchronization signal / physical broadcast channel block (SS / PBCH block, SSB) and, according to the received SSB, receives a physical downlink shared channel (PDSCH) for carrying SIB1 scheduled by a physical downlink control channel (PDCCH).

[0004] It should be noted that the above description of the background is only provided for a clear and complete description of the present disclosure and for easy understanding by those skilled in the art, and it should not be understood that the above technical solutions are known to those skilled in the art as described in the background of the present disclosure. Summary of the Invention

[0005] In order to utilize higher spectrum resources with wider available bandwidth, New Radio (NR) is supported to operate in higher frequency bands.

[0006] For example, in 3GPP Release 17 (Rel-17), the specified frequency range FR2 may be extended to cover 24.25 GHz to 71 GHz. Frequency range FR2-1 covers 24.25 to 52.6 GHz, and frequency range FR2-2 covers 52.6 to 71 GHz.

[0007] Table 1 lists the correspondence between frequency range designations, corresponding frequency ranges, candidate subcarrier spacings (SCS) for SSB, and candidate SCS for control resource set 0 (CORESET#0). [Table 1]

[0008] As shown in Table 1, in the case of FR2-2, the SCSs that SSB can use include 120 kHz, 480 kHz, and 960 kHz, and the SCSs that SIB1 can use include 120 kHz, 480 kHz, and 960 kHz. However, there is currently no method for determining how FR2-2 transmits and receives SSB or SIB1 in the corresponding specified frequency range.

[0009] In order to solve at least one of the above problems, embodiments of the present disclosure disclose a method and apparatus for transmitting and receiving signals, as well as a communication system, in which indication information indicating a frequency domain location of an SSB is transmitted, thereby facilitating transmission or reception of the SSB at the frequency domain location indicated by the indication information.

[0010] According to an aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving signals, which is applied to a network device, the apparatus including a first transceiver unit, the first transceiver unit configured to transmit indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB), and when a subcarrier spacing of the SSB is 960 kHz, the indication information does not indicate a frequency domain location to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds.

[0011] According to another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving a signal, which is applied to a network device, the apparatus including a second transceiver unit, the second transceiver unit configured to receive indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB), and when a subcarrier spacing of the SSB is 960 kHz, the indication information does not indicate a frequency domain location to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds.

[0012] According to a further aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving signals, which is applicable to a network device, the apparatus including a third transceiver unit, the third transceiver unit being configured to transmit a synchronization signal / PBCH block (SSB), wherein when a subcarrier spacing of the SSB is 960 kHz, in a master information block (MIB) of the SSB, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value.

[0013] According to yet another aspect of the embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving a signal, which is applied to a network device, and the apparatus includes a fourth transceiver unit, Transmits a synchronization signal / PBCH block (SSB), and the MIB of the SSB is used to indicate information about the content of SIB1 related to the SSB; It is configured to transmit SIBs related to SSB.

[0014] According to yet another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving signals, which is applicable to a terminal device, the apparatus including a fifth transceiver unit, the fifth transceiver unit being configured to receive a synchronization signal / PBCH block (SSB), and when the subcarrier spacing of the SSB is 960 kHz, in a master information block (MIB) of the SSB, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value.

[0015] According to yet another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving a signal, which is applied to a terminal device, and the apparatus includes a sixth transceiver unit, receiving a synchronization signal / PBCH block (SSB), the MIB of the SSB being used to indicate information about the content of SIB1 associated with the SSB; It is configured to receive SIBs related to SSB.

[0016] According to yet another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving signals, which is applicable to a terminal device, and the apparatus includes a seventh transceiver unit, wherein the seventh transceiver unit is configured to receive a synchronization signal / PBCH block (SSB) having a subcarrier spacing (SCS) of 960 kHz, and to determine a control resource set 0 (CORESET#0) according to a synchronization raster defined for an SSB having an SCS of 120 kHz or 480 kHz.

[0017] According to yet another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving signals, which is applied to a network device, the apparatus including an eighth transceiver unit, the eighth transceiver unit configured to transmit a synchronization signal / PBCH block (SSB) having a subcarrier spacing (SCS) of 960 kHz and to transmit indication information, the indication information indicating a frequency domain location of control resource set 0 (CORESET#0) according to a synchronization raster defined for SSBs having an SCS of 120 kHz or 480 kHz.

[0018] According to still another aspect of an embodiment of the present disclosure, there is provided an apparatus for transmitting and receiving a signal, which is applied to a terminal device, and the apparatus includes a ninth transceiver unit, Receive SSB and SSB-related SIB1, If the subcarrier spacing of the SSB is 480 kHz or 960 kHz and / or the subcarrier spacing of the PDSCCH used to schedule the PDSCH carrying SIB1 is 480 kHz or 960 kHz, For an SSB with one time index, it is configured to monitor the PDCCH in only one slot, or to monitor the PDCCH over more than two non-consecutive slots.

[0019] An advantage of the embodiments of the present disclosure is that the indication information indicating the frequency domain location of the SSB is transmitted, thereby facilitating transmission or reception of the SSB at the frequency domain location indicated by the indication information.

[0020]

[0023] With reference to the following description and drawings, specific embodiments of the present disclosure will be described in detail to illustrate the principles and methods of use of the present disclosure. It should be understood that the scope of the embodiments of the present disclosure is not limited thereto. The embodiments of the present disclosure encompass many alternatives, modifications, and equivalents within the spirit and terms of the appended patentable scope.

[0021] Features described and / or illustrated with respect to one embodiment may be used in the same or similar manner in one or more other embodiments and / or in combination with or instead of features of the other embodiments.

[0022] It should be emphasized that the term "comprising", when used in this specification, is to be interpreted as specifying the presence of stated features, integers, steps or components, but does not exclude the presence or addition of one or more other features, integers, steps, components or groups thereof.

[0023] Elements and features depicted in one drawing or embodiment of the invention may be combined with elements and features depicted in one or more additional drawings or embodiments. Further, in the drawings, the same reference numerals designate corresponding parts throughout the several views and may be used to designate the same or similar parts in more than one embodiment. [Brief explanation of the drawings]

[0024] [Figure 1]FIG. 1 is a schematic diagram of a communication system of the present disclosure. [Figure 2] 1 is a schematic diagram of the frequency relationship between resource blocks (RBs) corresponding to SSBs and synchronization rasters. [Figure 3] A schematic diagram of reception of SSB and SIB1 by a terminal device during the initial access procedure. [Figure 4] Schematic diagram of ANR function. [Figure 5] A schematic diagram of reception of SSB and SIB1 by a terminal device in the ANR procedure. [Figure 6] 1 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the first aspect of the present disclosure. [Figure 7] 4 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the second aspect of the present disclosure. [Figure 8] 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the third aspect. [Figure 9] FIG. 10 is another schematic diagram of a method for transmitting and receiving signals according to an embodiment of the third aspect. [Figure 10] 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fourth aspect. [Figure 11] FIG. 10 is another schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fourth aspect. [Figure 12] FIG. 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fifth aspect. [Figure 13] FIG. 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the sixth aspect. [Figure 14] FIG. 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the seventh aspect. [Figure 15] FIG. 14 is a schematic diagram of implementation 1 of operation 1402. [Figure 16] FIG. 14 is a schematic diagram of implementation 2 of operation 1402. [Figure 17] FIG. 10 is a schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the eighth aspect. [Figure 18] FIG. 10 is another schematic diagram of a device for transmitting and receiving signals according to an embodiment of the eighth aspect. [Figure 19] FIG. 10 is a further schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the eighth aspect. [Figure 20] FIG. 13 is yet another schematic diagram of a device for transmitting and receiving signals according to an embodiment of the eighth aspect. [Figure 21] FIG. 12 is a schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. [Figure 22] FIG. 13 is another schematic diagram of the device for transmitting and receiving signals according to the embodiment of the ninth aspect. [Figure 23] FIG. 10 is a further schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. [Figure 24] FIG. 13 is yet another schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. [Figure 25] FIG. 10 is yet another schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. [Figure 26] FIG. 16 is a schematic diagram of a terminal device according to an embodiment of the tenth aspect. [Figure 27] FIG. 16 is a schematic diagram of a network device according to an embodiment of the tenth aspect. [Figure 28] FIG. 14 is a schematic diagram of implementation 3 of operation 1402. DETAILED DESCRIPTION OF THE INVENTION

[0025] These and further aspects and features of the present disclosure will become apparent with reference to the following description and accompanying drawings. In the description and drawings, specific embodiments of the invention are disclosed in detail to illustrate some of the ways in which the principles of the invention may be employed, but it should be understood that the invention is not so limited in scope. Rather, the invention includes all alterations, modifications, and equivalents falling within the spirit and terms of the appended claims.

[0026] In the embodiments of the present disclosure, terms such as "first," "second," etc. are used to distinguish different elements in terms of names, but do not indicate the spatial or chronological order of those elements, and those elements should not be limited by those terms. The term "and / or" includes any one or all combinations of one or more of the associated listed terms. The terms "comprise," "include," and "have" refer to the presence of stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0027] In the embodiments of the present disclosure, the singular (such as a or an) should include the plural and be understood broadly as "a kind of" or "a type of," but should not be defined as meaning "one," and the term "said" should be understood to include both the singular and the plural unless otherwise stated. Furthermore, the term "according to" should be understood as "at least partially according to" unless otherwise stated.

[0028] In embodiments of the present disclosure, the terms "communications network" or "wireless communication network" may refer to a network that satisfies any one of the following communications standards: Long Term Evolution (LTE), Long Term Evolution-Advanced (LTE-A), Wideband Code Division Multiple Access (WCDMA), and High-Speed ​​Packet Access (HSPA).

[0029] Additionally, communications between devices within the communications system may be performed according to any stage of communications protocols, including, but not limited to, the following communications protocols: 1G (Generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, 5G, and New Radio (NR), and / or other communications protocols now known or that may be developed in the future.

[0030] In embodiments of the present disclosure, the term "network device" refers to a device in a communication system that connects user equipment to a communication network and provides services to the user equipment, for example. Network devices may include, but are not limited to, the following devices: nodes and / or donors in the IAB architecture, base stations (BSs), access points (APs), transmit / receive points (TRPs), broadcast transmitters, mobile management entities (MMEs), gateways, servers, radio network controllers (RNCs), base station controllers (BSCs), etc.

[0031] A base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB). It may also include a remote radio head (RRH), a remote radio unit (RRU), a relay, or a low-power node (e.g., femto and pico). The term "base station" may include some or all of its functions, and each base station may provide communication coverage for a particular geographic area. Additionally, the term "cell" may refer to a base station and / or its coverage area, depending on the context of the term.

[0032] In embodiments of the present disclosure, the term "user equipment (UE)" or "terminal equipment (TE) or terminal device" refers to, for example, an apparatus that accesses a communication network and receives network services via a network device. A terminal device may be fixed or mobile and may also be referred to as a mobile station (MS), terminal, subscriber station (SS), access terminal (AT), etc.

[0033] Terminal devices may include, but are not limited to, the following devices: cellular telephones, personal digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptops, cordless telephones, smart cell phones, smart watches, and digital cameras.

[0034] As another example, in scenarios such as the Internet of Things (IoT), the user equipment may be a machine or device that performs monitoring or measurement, including, but not limited to, a machine-type communication (MTC) terminal, an in-vehicle communication terminal, a device-to-device (D2D) terminal, or a machine-to-machine (M2M) terminal.

[0035] Furthermore, the term "network side" or "network device side" refers to the side of the network and may be a base station or one or more network devices including those mentioned above. The term "user side" or "terminal side" or "terminal equipment side" refers to the side of the user or terminal and may be a UE and may include one or more terminal equipment mentioned above.

[0036] In the following description, to avoid confusion, the terms "uplink control signal" and "uplink control information (UCI)" or "physical uplink control channel (PUCCH)" are synonymous, and the terms "uplink data signal" and "uplink data information" or "physical uplink shared channel (PUSCH)" are synonymous.

[0037] The terms "downlink control signal" and "downlink control information (DCI)" or "physical downlink control channel (PDCCH)" are synonymous, and the terms "downlink data signal" and "downlink data information" or "physical downlink shared channel (PDSCH)" are synonymous.

[0038] Furthermore, transmitting or receiving a PUSCH may be understood as transmitting or receiving uplink data carried by the PUSCH, transmitting or receiving a PUCCH may be understood as transmitting or receiving uplink information carried by the PUCCH, and transmitting or receiving a PRACH may be understood as transmitting or receiving a preamble carried by the PRACH. An uplink signal may include an uplink data signal and / or an uplink control signal, etc., and may be referred to as an uplink transmission, uplink information, or uplink channel. Sending an uplink transmission on an uplink resource may be understood as sending an uplink transmission by using the uplink resource. Similarly, downlink data / signal / channel / information may be understood accordingly.

[0039] In embodiments of the present disclosure, the higher layer signaling may be radio resource control (RRC) signaling, such as RRC messages, including MIBs, system information, and dedicated RRC messages, or may be referred to as RRC information elements (IEs). The higher layer signaling may also be medium access control (MAC), or may be referred to as MAC control elements (CEs), although the present disclosure is not limited thereto.

[0040] Scenarios for embodiments of the present disclosure will be described below as examples, but the present disclosure is not limited thereto.

[0041] 1 is a schematic diagram of a communication system of the present disclosure, in which a terminal device and a network device are schematically illustrated as an example. As shown in FIG. 1, a communication system 100 may include a network device 101 and a terminal device 102 (for simplicity, an example including only one terminal device is schematically illustrated in FIG. 1).

[0042] In an embodiment of the present disclosure, existing traffic or traffic that may be implemented in the future may be carried between the network device 101 and the terminal device 102. For example, such traffic may include, but is not limited to, enhanced Mobile Broadband (eMBB), Massive Machine Type Communication (MTC), and Ultra-Reliable and Low-Latency Communication (URLLC).

[0043] The terminal device 102 may transmit data to the network device 101, for example, in a grant-free manner. The network device 101 receives data transmitted by one or more terminal devices 102 and feeds back information, such as acknowledgement (ACK) / negative acknowledgement (NACK) information, to the terminal device 102, and the terminal device 102 may acknowledge the reception and terminate the transmission process, or may transmit new data or perform data retransmission.

[0044] Furthermore, before the terminal device 102 is connected to the network device 101, the network device 101 may transmit information about system information to the terminal device 102. The terminal device 102 detects the received information, achieves downlink synchronization, and establishes a connection with the network device 101.

[0045] A global synchronization raster for the frequency range 0-100 GHz is defined in NR. Based on this, a synchronization raster and an SCS for SSB are further defined for the operating band.

[0046] Table 2 lists the Global Synchronization Channel Numbers (GSCN) for the global frequency raster. [Table 2]

[0047] In Table 2, SSREF represents the reference frequency of the synchronization block.

[0048] FIG. 2 is a schematic diagram of the frequency relationship between the resource blocks (RBs) corresponding to the SSBs and the synchronization rasters.

[0049] 3 is a schematic diagram of the reception of SSB and SIB1 by the terminal device in the initial access procedure. As shown in FIG. 3, in the initial access procedure, the reception of SSB and SIB1 by the terminal device 102 includes the following operations:

[0050] Action 301: An SSB is detected and received in a synchronous raster.

[0051] Operation 302: It is determined whether the cellBar field of the SSB is barred, and if so, there is no need to receive SIB1 according to the SSB (regardless of whether the SSB has an associated SIB1), and it is further determined whether the intraFrequencySelection field is not allowed, and if so, there is no need to detect and receive other SSBs at the frequency domain location of the SSB (i.e., the UE determines that access to the network cannot be performed based on the SSB transmitted at the frequency domain location), and if not (i.e., if intraFrequencySelection is allowed), proceed to detect and receive other SSBs at the frequency domain location of the SSB, and further, if in operation 302 the cellBar field is not barred, proceed to operation 303.

[0052] Operation 303: Determine whether the SSB is associated with SIB1 (or whether there is a CORESET (CORESET#0) for Type0-PDCCH CSS (i.e., CORESET for Type0-PDCCH CSS, CSS is Common Search Space) or whether the cell broadcasts SIB1), and if so, proceed to operation 304; if not, detect and receive other SSBs.

[0053] Action 304: The CORESET for the Type0-PDCCH CSS is determined.

[0054] Operation 305: In the Type0-PDCCH CSS, the PDCCH for scheduling the PUSCH used to carry SIB1 is monitored and received.

[0055] Operation 306: A PDSCH scheduled by a PDCCH used to carry SIB1 is received, and SIB1 is obtained.

[0056] 4 is a schematic diagram of the ANR function. As shown in FIG. 4, the ANR function may include the following operations:

[0057] Action 1: A terminal device (eg, a UE) sends a measurement report of cell B to cell A, where the physical CID (Phy-CID) of cell B is 5.

[0058] Action 2: Cell A sends a Global CID Request to the UE to request the UE to send the Global CID of cell B with Phy-CID=5 (i.e., cell A instructs the UE to read the NCGI / ECGI, TAC, RANAC, PLMN ID, etc. (not all of them are necessarily broadcast) broadcast by cell B).

[0059] Operation 2b: The UE acquires a broadcast channel (BCCH) from cell B (i.e., the UE receives MIB and SIB1 from cell B) to read the NCGI / ECGI, TAC, RANAC, PLMN ID, etc. (included in SIB1) broadcast by cell B. Specifically, the UE may determine that the cell does not broadcast SIB1 according to the MIB carried by the SSB of cell B.

[0060] Action 3: The UE sends the global CID of cell B to cell A (specifically, when cell B does not broadcast SIB1, SIB1 is not reported).

[0061] 5 is a schematic diagram of the terminal device 102 receiving SSB and SIB1 during the ANR procedure. As shown in FIG. 5, during the ANR procedure, the terminal device 102 receives SSB and SIB1, including the following operations:

[0062] Action 501: An SSB is detected and received at a frequency domain location indicated by the base station and according to a physical cell identification indicated by the base station.

[0063] Operation 502: Determine whether the SSB received in operation 301 has an associated SIB (i.e., whether a CORESET (CORESET#0) for Type0-PDCCH CSS exists or whether the cell broadcasts SIB1), and if so, proceed to operation 503; otherwise, return to operation 501.

[0064] Action 503: The CORESET for the Type0-PDCCH CSS is determined.

[0065] Operation 504: In the Type0-PDCCH CSS, a PDCCH for scheduling a PUSCH used to carry SIB1 is monitored and received.

[0066] Operation 505: A PDSCH scheduled by a PDCCH used to carry SIB1 is received, and SIB1 is obtained.

[0067] In embodiments of the present disclosure, the use of a frequency domain position of a synchronization raster to which an SSB of a subcarrier spacing (SCS) corresponds (or a frequency domain position of a synchronization raster defined for an SSB of an SCS) refers to a terminal device (e.g., UE) blindly detecting (e.g., detecting and receiving without signaling an indication of the frequency domain position of the SSB) the frequency domain position based on which an SSB of an SCS is used.

[0068] [Embodiment of the First Aspect] An embodiment of the first aspect provides a method for transmitting and receiving signals, which is applied to a network device, such as the network device 101 of FIG.

[0069] 6 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the first aspect of the present disclosure. As shown in FIG. 6, the method includes the following operations:

[0070] Action 601: An indication of the frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB) is transmitted.

[0071] In operation 601, when the subcarrier spacing of the SSB is 960 kHz, the indication information does not indicate a frequency domain location to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds, i.e., the frequency domain location indicated by the indication information is different from (i.e., cannot be or should not be) a frequency domain location to which a synchronization raster having a predetermined GSCN value corresponds.

[0072] In an embodiment of the first aspect, SSB may be transmitted in the frequency range of FR2-2. Furthermore, a synchronization raster having a predetermined GSCN value may also be in the frequency range of FR2-2.

[0073] In an embodiment of the first aspect, the indication information may be included in RRC signaling. For example, the RRC signaling may indicate the frequency domain location of an SSB whose SCS is 960 kHz, but not the frequency domain location of a synchronization raster having a predetermined GSCN value.

[0074] In at least one embodiment, if a corresponding synchronization raster is not defined for an SSB with an SCS of 960 kHz, a synchronization raster having a given global synchronization channel number value (GSCN value) refers to a synchronization raster defined by 120 kHz and / or 480 kHz SSBs (i.e., a synchronization raster that blindly detects SSBs with an SCS of 120 kHz and / or a synchronization raster that blindly detects SSBs with an SCS of 480 kHz). For example, when radio resource control (RRC) signaling indicates the frequency domain location of an SSB with an SCS of 960 kHz, the frequency domain location corresponding to the GSCN value of 120 kHz and / or 480 kHz may not be indicated. Thus, forward compatibility requirements may be met.

[0075] Forward compatibility considerations include:

[0076] In Rel-17, SSBs using 960 kHz are not used to support initial access, so the included MIBs and / or associated SIB1s may not contain the necessary information to support initial access. For example, SIB1 may not contain inservingCellConfigCommon, and in that case, SSBs are not used for initial access. That is, even if a UE can receive SSBs during initial access, it cannot complete initial access to the network based on the SSBs. If the current release (Rel-17) allows SSBs to be transmitted at any frequency domain location, while a later release (e.g., Rel-18) supports initial access of SSBs based on 960 kHz (i.e., in later releases, UEs blindly detect SSBs with an SCS of 960 kHz), the initial access of UEs in the later releases may be affected. For example, a UE in a later release may receive an SSB with an SCS of 960 kHz when performing initial access, but may not be able to obtain the necessary information to support the initial access based on the SSB, and thus may not be able to complete the initial access based on the SSB, increasing the latency and complexity of the UE when performing initial access. By restricting the frequency domain location of an SSB with an SCS of 960 kHz in the current release, the possibility that an SSB with an SCS of 960 kHz may be blindly detected in a later release based on a frequency domain location that is unavailable in the current release may be maintained, thereby avoiding the potential adverse effect of an SSB with an SCS of 960 kHz in the current release on a later release and ensuring forward compatibility.

[0077] In a specific example, the RRC signaling may be MeasObjectNR. For example, when ssbSubcarrierSpacing in MeasObjectNR indicates 960 kHz, ssbFrequency in MeasObjectNR cannot indicate the frequency domain location of the GSCN value corresponding to 120 kHz and / or 480 kHz, as shown in Table 3 below. [Table 3]

[0078] In another example, the RRC signaling may be servingCellConfigCommon. For example, when ssbSubcarrierSpacing in servingCellConfigCommon indicates 960 kHz, absoluteFrequencySSB (in frequencyInfoDL) in DownlinkConfigCommon within servingCellConfigCommon cannot indicate the frequency domain location of GSCN values ​​corresponding to 120 kHz and / or 480 kHz.

[0079] In at least another embodiment, the synchronization raster having a predetermined global synchronization channel number value (GSCN value) is the synchronization raster defined for an SSB whose SCS is 960 kHz. For example, if a corresponding synchronization raster is defined for an SSB whose SCS is 960 kHz, when RRC signaling indicates the frequency-domain location of an SSB whose SCS is 960 kHz, the frequency-domain location of the GSCN value corresponding to 960 kHz is not indicated (e.g., cannot be indicated), and the SSB is not transmitted (e.g., cannot be transmitted) on the synchronization raster defined for 960 kHz.

[0080] In an embodiment of the first aspect, as shown in FIG. 6, a method for transmitting and receiving a signal may include the following operations.

[0081] Action 602: If an SSB is transmitted and the subcarrier spacing of the SSB is 960 kHz, the frequency domain location of the SSB is different from the frequency domain location of the synchronization raster having a given global synchronization channel number value (GSCN value).

[0082] The SSB transmitted in operation 602 is the SSB indicated by the indication information in operation 601 .

[0083] Furthermore, the network device / cell transmitting the SSB in operation 602 may be the same as or different from the network device / cell transmitting the indication information in operation 601. Thus, if the SCS of the transmitted SSB is 960 kHz, the network device restricts the frequency domain location of the SSB with an SCS of 960 kHz in the current release, so that the frequency domain location of the SSB differs from the frequency domain location corresponding to the synchronization raster with a predetermined GSCN value on the terminal device side. This allows the terminal device to maintain the possibility of blindly detecting the SSB with an SCS of 960 kHz to perform initial access in a subsequent release based on a frequency domain location that cannot be used in the current release, thereby avoiding the potential adverse effect of the SSB with an SCS of 960 kHz in the current release on subsequent releases and ensuring forward compatibility.

[0084] [Embodiment of the Second Aspect] Addressing at least the same problem as the embodiment of the first aspect, an embodiment of a second aspect of the present disclosure provides a method for transmitting and receiving a signal, which is applied to a terminal device. The method for transmitting and receiving a signal in the embodiment of the second aspect corresponds to the method for transmitting and receiving a signal in the embodiment of the first aspect.

[0085] As shown in FIG. 7, the method for transmitting and receiving signals includes the following operations.

[0086] Action 701: An indication of a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB) is received.

[0087] In operation 701, if the subcarrier spacing of the SSB is 960 kHz, the indication does not indicate the frequency domain location to which the synchronization raster having the given global synchronization channel number (GSCN) value corresponds.

[0088] For example, the indication information is included in the RRC signaling.

[0089] In at least one embodiment, the synchronization raster having the predetermined Global Synchronization Channel Number (GSCN) value is the synchronization raster defined for 120 kHz and / or 480 kHz SSB.

[0090] In at least one other embodiment, the synchronization raster having the predetermined global synchronization channel number (GSCN) value is the synchronization raster defined for SSB with an SCS that is 960 kHz.

[0091] In an embodiment of the second aspect, SSB is received in the frequency range of FR2-2. Furthermore, the synchronization raster is in the frequency range of FR2-2.

[0092] According to an embodiment of the second aspect, indication information indicating the frequency domain location of the SSB is received, thereby facilitating transmission or reception of the SSB at the frequency domain location indicated by the indication information, thereby ensuring forward compatibility.

[0093] [Embodiment of the Third Aspect] An embodiment of the third aspect provides a method for transmitting and receiving signals, applied to a network device, such as the network device 101 of FIG.

[0094] 8 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the third aspect. As shown in FIG. 8, the method includes the following operations:

[0095] Action 801: A synchronization signal / PBCH block (SSB) is transmitted.

[0096] In operation 801, if the subcarrier spacing of the SSB is 960 kHz, in the master information block (MIB) of the SSB, a cell selection related field is set to a first predetermined value and / or a cell reselection related field is set to a second predetermined value.

[0097] In at least one embodiment, as shown in Table 4, the cell selection related field is a cell bar field, the cell reselection related field is an intra-frequency cell reselection field, the first predetermined value is a value indicating barred, and the second predetermined value is a value indicating allowed. [Table 4]

[0098] In the information fields included in the MIB, cellBarredintraFreqReselection is used to indicate information about cell selection and reselection. In the existing technology, if the SSB of the SCS is not used for cell selection and reselection, these two information fields have no effect, that is, these two information fields can be set to any value. In the existing technology, if the SSB with an SCS of 960 kHz may not be used for cell selection and reselection, the two information fields can also be set to any value. However, compatibility issues may occur.

[0099] Therefore, in consideration of forward compatibility, it is necessary to restrict the values ​​of two information fields for an SSB with an SCS of 960 kHz. For example, for an SSB with an SCS of 960 kHz, cellBarred in the MIB within the SSB should indicate "barred" and / or intraFreqReselection should indicate "allowed." For example, as shown in Table 4, for an SSB with an SCS of 960 kHz, cellBarred in the MIB within the SSB should indicate "barred" and intraFreqReselection should indicate "allowed." The frequency domain location of the SSB may or may not be restricted (as described in the embodiment of the first aspect). That is, the embodiments of the first and second aspects may be combined in one implementation, or the embodiments of the first and second aspects may be implemented separately in different implementations.

[0100] For example, cellBarred should indicate that barred is another way to solve the forward compatibility problem described in 1. In this way, even if a later release UE receives an SSB having an SCS of 960 kHz, which cannot be used for initial access, when performing initial access, the UE will not further receive its associated SIB1 based on the indication of the SSB, since its cellBarred should indicate barred, thereby reducing the impact on the initial access of the later release UE to some extent.

[0101] Furthermore, the reason why intraFreqReselection should indicate "allowed" is that in the conventional method, if the cellBarred in the MIB of the highest-ranked cell indicates "barred" while intraFreqReselection indicates "notAllowed," the terminal device determines that the network does not allow intra-frequency cell selection or reselection. In other words, the network device is prohibited from accessing all cells that transmit SSBs at this frequency domain location. In the current release, if an SSB with an SCS of 960 kHz is transmitted at any frequency domain location and the value of intraFreqReselection is arbitrary, a UE of a later release may detect an SSB with an SCS of 960 kHz during initial access. Therefore, in the embodiment of the second aspect, the value of intraFreqReselection is set to a second predetermined value ("allowed").

[0102] In at least one embodiment, SSB is transmitted within the FR2-2 frequency range.

[0103] In at least one embodiment, the synchronous raster is in the frequency range of FR2-2.

[0104] 9 is another schematic diagram of the method for transmitting and receiving signals according to the embodiment of the third aspect. As shown in FIG. 9, the method for transmitting and receiving signals includes the following operations.

[0105] Action 901: A synchronization signal / PBCH block (SSB) is transmitted, and the MIB of the SSB contains information used to indicate information about the content of SIB1 associated with the SSB.

[0106] Action 902: SIB1 associated with the SSB is transmitted.

[0107] In operation 901, when the subcarrier spacing of an SSB is 960 kHz, the information used to indicate information about the content of SIB1 associated with the SSB indicates that SIB1 is used only for Automatic Neighbor Relationship (ANR) reporting or Cell Global Identifier (CGI) reporting (ANR / CGI reporting), or that SIB1 does not contain information to support initial access. Thus, potential adverse effects of an SSB with an SCS of 960 kHz in a current release on subsequent releases can be avoided, and forward compatibility can be ensured.

[0108] In operation 901, SSB is transmitted within the frequency range of FR2-2. Furthermore, in operation 901, the synchronization raster is within the frequency range of FR2-2.

[0109] According to the third embodiment, the potential adverse effects of SSB with SCS of 960 kHz in the current release on subsequent releases can be avoided and forward compatibility can be ensured.

[0110] [Embodiment of the Fourth Aspect] Addressing at least the same problem as the embodiment of the third aspect, an embodiment of a fourth aspect of the present disclosure provides a method for transmitting and receiving a signal, which is applied to a terminal device. The method for transmitting and receiving a signal in the embodiment of the fourth aspect corresponds to the method for transmitting and receiving a signal in the embodiment of the third aspect.

[0111] 10 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fourth aspect. As shown in FIG. 10, the method for transmitting and receiving signals according to the embodiment of the fourth aspect includes the following operations.

[0112] Action 1001: A synchronization signal / PBCH block (SSB) is received.

[0113] In operation 1001, if the subcarrier spacing of the SSB is 960 kHz, in the master information block (MIB) of the SSB, a cell selection related field is set to a first predetermined value and / or a cell reselection related field is set to a second predetermined value.

[0114] For example, the cell selection related field is a cell bar field, the cell reselection related field is an intra-frequency cell reselection field, the first predetermined value is a value indicating barred, and the second predetermined value is a value indicating allowed.

[0115] 11 is another schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fourth aspect. As shown in FIG. 11, the method for transmitting and receiving signals includes the following operations.

[0116] Action 1101: A synchronization signal / PBCH block (SSB) is received, and the MIB of the SSB contains information used to indicate information about the content of SIB1 associated with the SSB.

[0117] Action 1102: SIB1 associated with an SSB is received.

[0118] In operation 1101, if the subcarrier spacing of the SSB is 960 kHz, the information used to indicate information about the content of SIB1 associated with the SSB indicates that SIB1 is used only for Automatic Neighbor Relationship (ANR) reporting or Cell Global Identifier (CGI) reporting (ANR / CGI reporting), or that SIB1 does not contain information to support initial access.

[0119] In operations 1001 and 1101, SSB is received within the frequency range of FR2-2, and in operations 1001 and 1101, the synchronization raster is within the frequency range of FR2-2.

[0120] According to the fourth embodiment, the potential adverse effects of SSB with SCS of 960 kHz in the current release on subsequent releases can be avoided and forward compatibility can be ensured.

[0121] [Embodiment of the Fifth Aspect] An embodiment of the fifth aspect provides a method for transmitting and receiving signals, applied to a terminal device, such as the terminal device 102 of FIG.

[0122] 12 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the fifth aspect. As shown in FIG. 12, the method for transmitting and receiving signals according to the embodiment of the fifth aspect includes the following operations.

[0123] Action 1201: A synchronization signal / PBCH block (SSB) having an SCS of 960 kHz is received.

[0124] Action 1202: Control resource set 0 (CORESET#0) is determined according to the synchronization raster defined for SSB with SCS being 120 kHz or 480 kHz.

[0125] As shown in FIG. 12, the method further includes the following operations.

[0126] Action 1203: A PDCCH used for scheduling a PDSCH carrying SIB1 is received according to the determined CORESET#0.

[0127] In operation 1201, SSB is received within the frequency range of FR2-2.

[0128] The synchronous raster involved in operation 1202 is in the frequency range of FR2-2.

[0129] In an embodiment of the fifth aspect, when a terminal device receives an SSB with an SCS of 960 kHz (i.e., the first SSB) to receive a PDCCH for scheduling a PDSCH carrying SIB1, the terminal device determines CORESET#0 according to the synchronization raster to which an SSB with an SCS of 120 kHz or 480 kHz (i.e., the second SSB) corresponds. The second SSB may be actually transmitted (i.e., it is an SSB that has actually been transmitted), or the second SSB may not actually be transmitted (i.e., it is not an SSB that has actually been transmitted).

[0130] [Embodiment of the Sixth Aspect] An embodiment of the sixth aspect provides a method for transmitting and receiving signals, applied to a network device, such as the network device 101 of FIG.

[0131] 13 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the sixth aspect. As shown in FIG. 13, the method for transmitting and receiving signals according to the embodiment of the sixth aspect includes the following operations.

[0132] Action 1301: A synchronization signal / PBCH block (SSB) having a subcarrier spacing (SCS) that is 960 kHz is transmitted.

[0133] Action 1302: An indication is transmitted, the indication indicating a frequency domain location of control resource set 0 (CORESET#0) according to a synchronization raster defined for an SSB having an SCS of 120 kHz or 480 kHz.

[0134] In operation 1301, SSB is transmitted within the frequency range FR2-2.

[0135] The synchronous raster involved in operation 1302 is in the frequency range of FR2-2.

[0136] In an embodiment of the sixth aspect, the instruction information transmitted in operation 1302 may indicate a frequency domain position of control resource set 0 (CORESET#0) according to a synchronization raster defined for an SSB (i.e., the second SSB) having an SCS of 120 kHz or 480 kHz. Thus, after receiving an SSB (i.e., the first SSB) having an SCS of 960 kHz, the terminal device determines CORESET#0 according to a synchronization raster defined for an SSB (i.e., the second SSB) having an SCS of 120 kHz or 480 kHz in order to receive a PDCCH for scheduling a PDSCH carrying SIB1. That is, after receiving an SSB (i.e., the first SSB) having an SCS of 960 kHz, the terminal device performs blind detection at a frequency domain position of the synchronization raster corresponding to an SSB (i.e., the second SSB) having an SCS of 120 kHz or 480 kHz in order to receive a PDCCH for scheduling a PDSCH carrying SIB1.

[0137] [Embodiment of the Seventh Aspect] An embodiment of the seventh aspect provides a method for transmitting and receiving signals, applied to a terminal device, such as the terminal device 102 of FIG.

[0138] 14 is a schematic diagram of a method for transmitting and receiving signals according to an embodiment of the seventh aspect. As shown in FIG. 14, the method for transmitting and receiving signals includes the following operations.

[0139] Action 1401: An SSB and an SIB1 associated with the SSB are received.

[0140] Action 1402: If the subcarrier spacing of the SSB is 480 kHz or 960 kHz and / or if the subcarrier spacing of the PDCCH used to schedule the PDSCH carrying SIB1 is 480 kHz or 960 kHz, for an SSB with one time index, the PDCCH is not monitored in two consecutive slots.

[0141] In operation 1401, SSB and SIB1 are received within the frequency range of FR2-2.

[0142] In implementation 1 of operation 1402, if the subcarrier spacing of the SSB is 480 kHz or 960 kHz, and / or if the subcarrier spacing of the PDCCH used to schedule the PDSCH carrying SIB1 is 480 kHz or 960 kHz, for an SSB having a certain index (a time index used to characterize the time-domain position of the SSB within the transmission window, such as an SSB index or a candidate SSB index), the UE monitors the PDCCH in only one slot. For example, for an SSB having a certain index, the UE monitors the PDCCH in slot n_0, which is determined in the manner shown in Table 5. Here, the slot is based on the SCS of the PDCCH described above, or the SCS to which the slot corresponds is the SCS of the PDCCH described above. [Table 5] [Table 6]

[0143] Figure 15 is a schematic diagram of implementation 1 of operation 1402. As shown in Figure 15, based on the settings in Table 6, it is assumed that for an SSB with a certain index, when M = 1 / 2, M = 1, and M = 2, the terminal device monitors the PDCCH in only one slot.

[0144] In implementation 2 of operation 1402, if the subcarrier spacing of an SSB is 480 kHz or 960 kHz, and / or if the subcarrier spacing of a PDCCH used to schedule a PDSCH carrying SIB1 is 480 kHz or 960 kHz, for an SSB having a certain index (time index), the terminal device monitors the PDCCH over two or more non-consecutive slots. For example, as shown in Table 7, for an SSB having a certain index, the PDCCH is monitored in slots n_0 and n_0+k (k>=2). Here, the slot is based on the SCS of the PDCCH described above, or in other words, the SCS to which the slot corresponds is the SCS of the PDCCH described above. [Table 7]

[0145] Figure 16 is a schematic diagram of implementation 2 of operation 1402. As shown in Figure 16, it is assumed that k = 2. As shown in Figure 16, for M = 1 / 2, M = 1, and M = 2, for an SSB with a certain index, the terminal device may monitor the PDCCH over two or more non-consecutive slots.

[0146] In implementation 2 of operation 1402, the two or more non-consecutive slots may be predefined or indicated by the SSB received in operation 1401.

[0147] In operation 1402, for more than two non-consecutive slots, there are multiple slots spaced apart, and the number of slots is predefined or indicated by the SSB received in operation 1401. For example, in the above example, the value of k is predefined or indicated by the MIB in the SSB. Thus, the terminal device can determine the coincidence of slot n_0 and slot n_0+1, and thereby monitor the PDCCH.

[0148] Furthermore, in at least one embodiment, operation 1402 may be replaced with the operation of the following implementation 3. In implementation 3, if the subcarrier spacing of the SSB is 480 kHz or 960 kHz and / or if the subcarrier spacing of the PDCCH used to schedule the PDSCH carrying SIB1 is 480 kHz or 960 kHz, the slot for monitoring the PDCCH may be determined according to a reference SCS (e.g., 120 kHz). The reference SCS is different from the SCS of the PDCCH used to schedule the PDSCH carrying SIB1 (i.e., the PDCCH to be monitored).

[0149] For example, for an SSB having a certain index, the method of Table 7 determines the first slots n_0 and n_0+k (e.g., k=1) for monitoring the PDCCH based on the reference SCS. Furthermore, slots n_0 and n_(0+m) included in the first slots n_0 and n_0+k for monitoring the PDCCH based on the SCS of the PDCCH to be monitored may be determined, and the PDCCH may be monitored in slots n_0 and n_(0+m) based on the SCS of the PDCCH to be monitored.

[0150] Figure 28 is a schematic diagram of implementation 3 of operation 1402. In Figure 28, the reference SCS is 120 kHz, and the SCS of the PDCCH is 480 kHz.

[0151] In at least one embodiment, the methods of embodiment 1, embodiment 2, and embodiment 3 may be combined. For example, different methods are adapted for different index settings, and as another example, different methods are used for different values ​​of M. In an embodiment of the seventh aspect, the problem of how to determine and monitor a PDCCH that schedules a PDSCH carrying SIB1 may be solved.

[0152] [Embodiment of the Eighth Aspect] An embodiment of the present disclosure provides an apparatus for transmitting and receiving signals, which is applied to a network device.

[0153] 17 is a schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the eighth aspect. As shown in FIG. 17, the apparatus for transmitting and receiving signals 1700 includes a first transceiver 1701, which is configured to transmit indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of SSB is 960 kHz, the indication information does not indicate the frequency domain position to which the synchronization raster having the global synchronization channel number (GSCN) corresponds.

[0154] For a description of the device 1700 for transmitting and receiving signals, reference may be made to the embodiments of the first aspect.

[0155] 18 is another schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the eighth aspect. As shown in FIG. 18, the apparatus for transmitting and receiving signals 1800 includes a third transceiver unit 1801, which is configured to transmit a synchronization signal / PBCH block (SSB); When the subcarrier spacing of the SSB is 960 kHz, in the master information block (MIB) of the SSB, the cell selection related field is set to a first predetermined value and / or the cell reselection related field is set to a second predetermined value.

[0156] For a description of the device 1800 for transmitting and receiving signals, reference may be made to the embodiments of the third aspect.

[0157] 19 is a further schematic diagram of a device for transmitting and receiving signals according to an embodiment of the eighth aspect. As shown in FIG. 19, the device for transmitting and receiving signals 1900 includes a fourth transceiver 1901, which Transmits a synchronization signal / PBCH block (SSB), and the MIB of the SSB is used to indicate information about the content of SIB1 related to the SSB; It is configured to transmit SIBs related to SSB.

[0158] For a description of the device 1900 for transmitting and receiving signals, reference may be made to the embodiments of the third aspect.

[0159] 20 is yet another schematic diagram of a device for transmitting and receiving signals according to an embodiment of the eighth aspect. As shown in FIG. 20, the device for transmitting and receiving signals 2000 includes an eighth transceiver unit 2001, which is configured to transmit a synchronization signal / PBCH block (SSB) with a subcarrier spacing (SCS) of 960 kHz and transmit instruction information; The indication information indicates the frequency domain location of control resource set 0 (CORESET#0) according to the synchronization raster defined for SSB with SCS of 120 kHz or 480 kHz.

[0160] For a description of the device 2000 for transmitting and receiving signals, reference can be made to the embodiments of the sixth aspect.

[0161] [Embodiment of the ninth aspect] An embodiment of the present disclosure provides a device for transmitting and receiving signals, which is applied to a terminal device.

[0162] 21 is a schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. As shown in FIG. 21, the apparatus for transmitting and receiving signals 2100 includes a second transceiver unit 2101, which is configured to receive indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of SSB is 960 kHz, the indication information does not indicate the frequency domain position to which the synchronization raster having a given global synchronization channel number (GSCN) corresponds.

[0163] For a description of the device 2100 for transmitting and receiving signals, reference can be made to the embodiments of the second aspect.

[0164] 22 is another schematic diagram of a signal transmitting / receiving device according to an embodiment of the ninth aspect. As shown in FIG. 22, the signal transmitting / receiving device 2200 includes a fifth transceiver unit 2201, which is configured to receive a synchronization signal / PBCH block (SSB); When the subcarrier spacing of the SSB is 960 kHz, in the master information block (MIB) of the SSB, the cell selection related field is set to a first predetermined value and / or the cell reselection related field is set to a second predetermined value.

[0165] For a description of the device 2200 for transmitting and receiving signals, reference may be made to the embodiments of the fourth aspect.

[0166] 23 is a further schematic diagram of an apparatus for transmitting and receiving signals according to an embodiment of the ninth aspect. As shown in FIG. 23, the apparatus for transmitting and receiving signals 2300 includes a sixth transceiver 2301, which includes: receiving a synchronization signal / PBCH block (SSB), the MIB of the SSB being used to indicate information about the content of SIB1 associated with the SSB; It is configured to receive SIBs related to SSB.

[0167] For a description of the device 2300 for transmitting and receiving signals, reference can be made to the embodiments of the fourth aspect.

[0168] 24 is yet another schematic diagram of a device for transmitting and receiving signals according to an embodiment of the ninth aspect. As shown in FIG. 24, the device for transmitting and receiving signals 2400 includes a seventh transceiver 2401, which includes: Receives a synchronization signal / PBCH block (SSB) with a subcarrier spacing (SCS) of 960 kHz, The SCS is configured to determine control resource set 0 (CORESET#0) according to the synchronization raster defined for SSB where SCS is 120 kHz or 480 kHz.

[0169] For a description of the device 2400 for transmitting and receiving signals, reference may be made to the embodiments of the fifth aspect.

[0170] 25 is yet another schematic diagram of a device for transmitting and receiving signals according to an embodiment of the ninth aspect. As shown in FIG. 25, the device for transmitting and receiving signals 2500 includes a ninth transceiver unit 5401, and the ninth transceiver unit 2501 Receive SSB and SSB-related SIB1, When the subcarrier spacing of the SSB is 480 kHz or 960 kHz and / or the subcarrier spacing of the PDSCCH used to schedule the PDSCH carrying SIB1 is 480 kHz or 960 kHz, for an SSB with one time index, it is configured to monitor the PDCCH in only one slot or to monitor the PDCCH over more than two non-consecutive slots.

[0171] For a description of the device 2500 for transmitting and receiving signals, reference may be made to the embodiments of the seventh aspect.

[0172] [Embodiment of the Tenth Aspect] Embodiments of the present disclosure provide a communication system including a reduced-capability (RedCap) UE and a network device.

[0173] 26 is a schematic diagram of a terminal device according to an embodiment of the tenth aspect. As shown in FIG. 26, the terminal device 2600 may include a processor 2610 and a memory 2620, where the memory 2620 stores data and programs and is coupled to the processor 2610. It should be noted that this diagram is merely exemplary, and that other types of structures may be used to replace or substitute this structure to achieve telecommunications or other functions.

[0174] For example, the processor 2610 may be configured to execute a program to perform the methods as described in the embodiments of the second, fourth, fifth and seventh aspects.

[0175] As shown in Fig. 26, the terminal device 2600 may further include a communication module 2630, an input unit 2640, a display 2650, and a power supply 2660, and the functions of the above components are similar to those in the related art and will not be further described in this specification. It should be noted that the terminal device 2600 does not necessarily include all parts shown in Fig. 26, and the above components are not essential. Furthermore, the terminal device 2600 may include parts not shown in Fig. 26, and the related art may be referenced.

[0176] 27 is a schematic diagram of a network device according to an embodiment of the tenth aspect. As shown in FIG. 27, the network device 2700 may include a processor 2710 (e.g., a central processing unit (CPU)) and a memory 2720, which is coupled to the processor 2710. The memory 2720 may store various data, and may further store a program 2730 for information processing and execute the program 2730 under the control of the processor 2710.

[0177] For example, the processor 2710 may be configured to execute a program to perform the methods as described in the embodiments of the first, third and sixth aspects.

[0178] 27, the network device 2700 may include a transceiver 2740 and an antenna 2750. The functions of the above components are similar to those in the related art and will not be further described in this specification. The network device 2700 does not necessarily include all parts shown in FIG. 27, and the network device 2700 may include parts not shown in FIG. 27, for which reference may be made to the related art.

[0179] An embodiment of the present disclosure provides a computer-readable program that, when executed on a terminal device, causes the terminal device to perform the methods as described in the embodiments of the second, fourth, fifth, and seventh aspects.

[0180] An embodiment of the present disclosure provides a computer storage medium including a computer-readable program for causing a terminal device to perform a method as described in the embodiments of the second, fourth, fifth, and seventh aspects.

[0181] An embodiment of the present disclosure provides a computer readable program that, when executed on a terminal device, causes the terminal device to perform the methods as described in the embodiments of the first, third and sixth aspects.

[0182] An embodiment of the present disclosure provides a computer storage medium including a computer-readable program for causing a terminal device to perform a method as described in the embodiments of the first, third, and sixth aspects.

[0183] The above-described apparatus and method of the present disclosure may be implemented by hardware or by hardware in combination with software. The present disclosure relates to a computer-readable program that, when executed by a logic device, enables the logic device to execute the above-described apparatus or component, or to perform the above-described method or step. The present disclosure also relates to a storage medium for storing the above-described program, such as a hard disk, a floppy disk, a CD, a DVD, a flash memory, etc.

[0184] The methods / apparatuses described with reference to the embodiments of the present disclosure may be embodied directly in hardware, as software modules executed by a processor, or as a combination thereof. For example, one or more functional block diagrams and / or one or more combinations of functional block diagrams shown in the drawings may correspond to software modules of computer program procedures or to hardware modules. Such software modules may correspond to respective steps shown in the drawings. Furthermore, the hardware modules may be implemented by farming the software modules, for example, by using a field programmable gate array (FPGA).

[0185] The soft module may be located in RAM, flash memory, ROM, EPROM, EEPROM, registers, hard disk, floppy disk, CD-ROM, or any other form of memory medium known in the art. The memory medium may be coupled to the processor such that the processor can read information from and write information to the memory medium, or the memory medium may be a component of the processor. The processor and the memory medium may be located in an ASIC. The soft module may be stored in the memory of the mobile terminal or in a pluggable memory card of the mobile terminal. For example, if the device (e.g., the mobile terminal) uses a relatively large-capacity MEGA-SIM card or a large-capacity flash memory device, the soft module may be stored in the MEGA-SIM card or the large-capacity flash memory device.

[0186] One or more of the functional blocks and / or one or more combinations of functional blocks in the figures may be implemented as a universal processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete lead hardware component, or any combination thereof that performs the functions described herein. Also, one or more of the functional block diagrams and / or one or more combinations of one or more of the functional block diagrams in the figures may be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple processors, one or more microprocessors communicatively coupled with a DSP, or any other such configuration.

[0187] The present disclosure has been described above with reference to specific embodiments. However, it should be understood by those skilled in the art that such descriptions are merely illustrative and are not intended to limit the protection scope of the present invention. Various modifications and changes may be made by those skilled in the art according to the spirit and principle of the present invention, and such modifications and changes fall within the scope of the present invention.

[0188] Regarding implementations including the above embodiments, the following notes are further disclosed.

[0189] (First supplementary group) 1. A method for transmitting and receiving signals applied to a network device, comprising: transmitting indication information indicating a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the indication information does not indicate a frequency domain position to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds. method. 2. The method of claim 1, The indication information is included in RRC signaling. method. 3. The method of claim 1, The synchronization raster having the predetermined global synchronization channel number (GSCN) is a synchronization raster defined for 120 kHz or 480 kHz SSB. method. 4. The method of claim 1, The synchronization raster having a predetermined Global Synchronization Channel Number (GSCN) is the synchronization raster defined for SSB with an SCS of 960 kHz. method. 5. The method of claim 1, The SSB is transmitted within the FR2-2 frequency range. method. 6. The method of claim 1, The synchronous raster is within the frequency range of FR2-2; method. 7. The method of claim 1, transmitting the synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of the SSB is 960 kHz, in a master information block (MIB) of the SSB, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value; method. 8. The method of claim 7, the cell selection related field is a cell prohibition field; The cell reselection related field is an intra-frequency cell reselection (intraFreqReselection) field, the first predetermined value is a value indicating prohibition, The second predetermined value is a value indicating that it is permitted. method 9. The method of claim 1, transmitting the synchronization signal / PBCH block (SS / PBCH block, SSB), wherein a master information block (MIB) of the SSB includes information used to indicate information about the content of a SIB1 associated with the SSB; transmitting a SIB1 associated with said SSB; The method further comprises: 10. The method of claim 9, When the subcarrier spacing of the SSB is 960 kHz, the information used to indicate information about the content of SIB1 associated with the SSB indicates that the SIB1 is used only for ANR reporting or CGI reporting, or that the SIB1 does not contain information to support initial access. method.

[0190] (Second group of notes) 1. A method for transmitting and receiving signals, applied to a terminal device, comprising: receiving an indication of a frequency domain location of a synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the indication information does not indicate a frequency domain position to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds. method. 2. The method of claim 1, The indication information is included in RRC signaling. method. 3. The method of claim 1, The synchronization raster having the predetermined global synchronization channel number (GSCN) is a synchronization raster defined for 120 kHz or 480 kHz SSB. method. 4. The method of claim 1, The synchronization raster having a predetermined Global Synchronization Channel Number (GSCN) is the synchronization raster defined for SSB with an SCS of 960 kHz. method. 5. The method of claim 1, The SSB is transmitted within the FR2-2 frequency range. method. 6. The method of claim 1, The synchronous raster is within the frequency range of FR2-2; method. 7. The method of claim 1, receiving the synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of the SSB is 960 kHz, in a master information block (MIB) of the SSB, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value; method. 8. The method of claim 7, the cell selection related field is a cell prohibition field; The cell reselection related field is an intra-frequency cell reselection (intraFreqReselection) field, the first predetermined value is a value indicating prohibition, The second predetermined value is a value indicating that it is permitted. method 9. The method of claim 1, receiving the synchronization signal / PBCH block (SS / PBCH block, SSB), wherein a master information block (MIB) of the SSB includes information used to indicate information about the content of a SIB1 associated with the SSB; receiving an SIB1 associated with said SSB; The method further comprises: 10. The method of claim 9, When the subcarrier spacing of the SSB is 960 kHz, the information used to indicate information about the content of SIB1 associated with the SSB indicates that the SIB1 is used only for ANR reporting or CGI reporting, or that the SIB1 does not contain information to support initial access. method.

[0191] (Third supplementary group) 1. A method for transmitting and receiving signals, applied to a terminal device, comprising: Receiving a synchronization signal / PBCH block (SS / PBCH block, SSB) having a subcarrier spacing (SCS) of 960 kHz; determining a control resource set 0 (CORESET#0) according to a synchronization raster defined for the SSB where the SCS is 120 kHz or 480 kHz; A method having the following. 2. The method of claim 1, and receiving a PDCCH used to schedule a PDSCH carrying an SIB1 according to the determined CORESET#0. method. 3. The method of claim 1, The SSB is received within the frequency range FR2-2; method. 4. The method of claim 1, The synchronous raster is within the frequency range of FR2-2; method.

[0192] (Fourth Supplementary Group) 1a. A method for transmitting and receiving signals applied to a network device, comprising: Transmitting a synchronization signal / PBCH block (SS / PBCH block, SSB) having a subcarrier spacing (SCS) of 960 kHz; Transmitting instruction information; and The indication information indicates a frequency domain location of a control resource set 0 (CORESET #0) according to a synchronization raster defined for the SSB where the SCS is 120 kHz or 480 kHz. method. 2a. The method according to claim 1a, The SSB is transmitted within the FR2-2 frequency range. method.

[0193] (5th Annex Group) 1. A method for transmitting and receiving signals, applied to a terminal device, comprising: receiving an SSB and an SIB1 associated with the SSB; If the subcarrier spacing of the SSB is 480 kHz or 960 kHz, and / or the subcarrier spacing of the PDCCH used to schedule the PDSCH carrying the SIB1 is 480 kHz or 960 kHz, For the SSB having one time index, monitoring the PDCCH in only one slot or monitoring the PDCCH over two or more non-consecutive slots. A method having the following. 2. The method of claim 1, The two or more non-consecutive slots are predefined or indicated by the SSB; method. 3. The method of claim 1, the number of slots spaced apart between the two or more non-consecutive slots is predefined or indicated by the SSB; method. 4. The method of claim 1, The SSB is received within the frequency range FR2-2; method.

[0194] 1a. A method for transmitting and receiving signals, applied to a terminal device, comprising: receiving an SSB and an SIB1 associated with the SSB; If the subcarrier spacing of the SSB is 480 kHz or 960 kHz, and / or the subcarrier spacing of the PDCCH used to schedule the PDSCH carrying the SIB1 is 480 kHz or 960 kHz, determining a slot for monitoring the PDCCH according to a reference SCS (e.g., 120 kHz); the reference SCS is different from the subcarrier spacing of a PDCCH used to schedule a PDSCH carrying the SIB1; method.

Claims

1. An apparatus that can be applied to a network device, a memory and a processor coupled to the memory; The processor is configured to transmitting a system information block 1 (SIB1) associated with a synchronization signal / PBCH block (SS / PBCH block, SSB); When the subcarrier spacing of the synchronization signal / PBCH block is 480 kHz or 960 kHz and / or when the subcarrier spacing of a PDCCH used to schedule a PDSCH carrying the SIB1 is 480 kHz or 960 kHz, for an SSB with index i, the PDCCH is controlled to be transmitted in at least two non-consecutive slots; The subcarrier spacing (SCS) corresponding to the at least two non-consecutive slots is the subcarrier spacing (SCS) of the PDCCH; The at least two non-consecutive slots include slot n 0 and slot n 0 +k (k≧2), where n 0 is [Equation 1] The value of k is predefined, Index i is the candidate SSB index, Device.

2. the transmitter is further configured to transmit an indication of a frequency domain location of the synchronization signal / PBCH block; When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the indication information does not indicate a frequency domain position to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds.

10. The apparatus of claim 1.

3. The indication information is included in RRC signaling.

3. The apparatus of claim 2.

4. the synchronization raster having the predetermined global synchronization channel number is a synchronization raster defined for 120 kHz and / or 480 kHz SSB, or the synchronization raster having the predetermined global synchronization channel number is the synchronization raster defined for SSB with an SCS of 960 kHz; 3. The apparatus of claim 2.

5. When a subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value in a master information block (MIB) of the synchronization signal / PBCH block.

10. The apparatus of claim 1.

6. When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the information used to indicate the content of SIB1 associated with the synchronization signal / PBCH block indicates that the SIB1 is used only for ANR reporting or CGI reporting, or that the SIB1 does not contain information to support initial access.

10. The apparatus of claim 1.

7. An apparatus that can be applied to a terminal device, a receiver configured to receive a system information block 1 (SIB1) associated with a synchronization signal / PBCH block (SS / PBCH block, SSB); a processor configured to control, for an SSB having index i, to monitor the PDCCH in at least two non-consecutive slots when the subcarrier spacing of the synchronization signal / PBCH block is 480 kHz or 960 kHz and / or when the subcarrier spacing of a PDCCH used to schedule a PDSCH carrying the SIB1 is 480 kHz or 960 kHz; Including, The subcarrier spacing (SCS) corresponding to the at least two non-consecutive slots is the subcarrier spacing (SCS) of the PDCCH; The at least two non-consecutive slots include slot n 0 and slot n 0 +k (k≧2), where n 0 is [Equation 2] The value of k is predefined, Index i is the candidate SSB index, Device.

8. the receiver is further configured to receive an indication of a frequency domain location of the synchronization signal / PBCH block; When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the indication information does not indicate a frequency domain position to which a synchronization raster having a predetermined global synchronization channel number (GSCN) corresponds.

8. The apparatus of claim 7.

9. The indication information is included in RRC signaling.

9. The apparatus of claim 8.

10. the synchronization raster having the predetermined global synchronization channel number is the synchronization raster defined for SSB with an SCS of 960 kHz; 9. The apparatus of claim 8.

11. When a subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, a cell selection-related field is set to a first predetermined value and / or a cell reselection-related field is set to a second predetermined value in a master information block (MIB) of the synchronization signal / PBCH block.

8. The apparatus of claim 7.

12. When the subcarrier spacing of the synchronization signal / PBCH block is 960 kHz, the information used to indicate the content of SIB1 associated with the synchronization signal / PBCH block indicates that the SIB1 is used only for ANR reporting or CGI reporting, or that the SIB1 does not contain information to support initial access.

8. The apparatus of claim 7.

13. The at least two non-consecutive slots are predefined or indicated by the synchronization signal / PBCH block; and / or the number of slots disposed between the at least two non-consecutive slots is predefined or indicated by the synchronization signal / PBCH block; 8. The apparatus of claim 7.

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