Frequency domain position determination method and apparatus, network device, terminal, storage medium, and program product

Abstract

The present disclosure provides a frequency domain position determination method and apparatus, a network device, a terminal, a storage medium, and a program product. The method comprises: a terminal receives a first SSB, wherein the first SSB comprises a first frequency domain offset and / or a second frequency domain offset; and determining a third frequency domain offset on the basis of the first frequency domain offset, a frequency domain position of the first SSB, and a first synchronization frequency point, and / or determining a fourth frequency domain offset on the basis of the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point, wherein the third frequency domain offset is an offset between a frequency domain starting position of the first SSB and a frequency domain starting position of a second CRB, the fourth frequency domain offset is an offset between the frequency domain starting position of the second CRB and a frequency domain starting position of a first control resource, and the second CRB is an CRB where the frequency domain starting position of the first SSB is located.

Description

Frequency domain position determination method and apparatus, network device, terminal, storage medium, and program product

[0001] Cross-reference to Related Applications

[0002] The present application claims priority from Chinese Patent Application No. 202410643419.2 filed on May 22, 2024, the contents of which are incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present disclosure relates to the technical field of communication, and particularly relates to a frequency domain position determination method and apparatus, a network device, a terminal, a storage medium and a program product. BACKGROUND

[0004] In related technologies, a synchronization signal and PBCH block (SSB) for initial access is generally transmitted at a frequency domain position of a synchronization signal block in a synchronization raster, and the PBCH is a physical broadcast channel (Physical Broadcast Channel, PBCH); after receiving the SSB, a terminal can obtain a frequency domain position of a common resource block (CRB) and a frequency domain position of a control resource set (CORESET) corresponding to a common search space set (CSS set) of a type 0-physical downlink control channel (type 0-PDCCH) according to Kssb in the SSB and a PDCCH configuration indication (PDCCH-config indication).

[0005] In a design for network energy saving, a dynamically switched SSB can not be transmitted at the frequency domain position of the synchronization signal block, and the terminal cannot obtain the frequency domain positions of the CRB and the CORESET corresponding to the type 0-PDCCH CSS set when receiving the SSB transmitted at the frequency domain position other than the synchronization signal block. SUMMARY

[0006] To solve the problems in related technologies, the present disclosure provides a frequency domain position determination method and apparatus, a network device, a terminal, a storage medium and a program product.

[0007] The technical solution of the present disclosure embodiment is implemented as follows:

[0008] The method for determining a frequency domain position provided by the embodiments of the present disclosure comprises:

[0009] receiving a first SSB, wherein the first SSB comprises a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicates an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicates an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB is a CRB where the frequency domain start position of the second SSB is located, and the frequency domain position of the first SSB is different from that of the second SSB;

[0010] determining a third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB and a first synchronization frequency point, and / or determining a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB and the first synchronization frequency point, wherein the third frequency domain offset is an offset between the frequency domain start position of the first SSB and a frequency domain start position of a second CRB, and the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and the frequency domain start position of the first control resource, and the second CRB is a CRB where the frequency domain start position of the first SSB is located.

[0011] In the above scheme, the first synchronization frequency point is a frequency domain position of a synchronization signal block in a synchronization raster that is closest to the frequency domain position of the first SSB.

[0012] In the above scheme, the first synchronization frequency point is a frequency domain position of a synchronization signal block in a synchronization raster that is closest to the frequency domain position of the first SSB.

[0013] In the above scheme, the method further comprises:

[0014] receiving first information, wherein the first information indicates that the second SSB is transmitted at the first synchronization frequency point, or the first information indicates that the frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicates a center frequency point of the second SSB, and the center frequency point of the second SSB is the first synchronization frequency point.

[0015] In the above scheme, the method further comprises:

[0016] receive a second SSB, the second SSB is transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB is the first synchronization frequency point, or a center frequency point of the second SSB is the first synchronization frequency point.

[0017] In the foregoing solution, the third frequency domain offset is equal to (the first frequency domain offset + the fifth frequency domain offset) mod (12*the second value); wherein,

[0018] The fifth frequency domain offset is an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; the fifth frequency domain offset is in units or granularity of a subcarrier spacing of an SSB; and the second value is the minimum of a third value and 1, and the third value is a ratio between a subcarrier spacing of a CRB and a subcarrier spacing of an SSB.

[0019] In the foregoing solution, the fourth frequency domain offset is equal to the second frequency domain offset plus a sixth frequency domain offset, and the sixth frequency domain offset is an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; and the sixth frequency domain offset is in units or granularity of a resource block (RB) of a CRB.

[0020] In the foregoing solution, the fifth frequency domain offset is a predefined value.

[0021] In the foregoing solution, the sixth frequency domain offset is a predefined value.

[0022] In the foregoing solution, the frequency domain position of the first SSB is a predefined value, or,

[0023] The method further includes:

[0024] receiving second information indicating the frequency domain position of the first SSB.

[0025] In the foregoing solution, a transmission period of the first SSB is a first value, and the first value is a predefined value.

[0026] In the foregoing solution, the receiving the first SSB includes:

[0027] detecting the first SSB at the frequency domain position of the first SSB at least within a first time, and the first time is a predefined value.

[0028] The embodiments of the present disclosure further provide a frequency domain position determination method, including:

[0029] transmit a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB being a CRB where the frequency domain starting position of the second SSB is located, the first SSB being different from a frequency domain position of the second SSB.

[0030] In the foregoing solution, the method further comprises:

[0031] transmitting first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that a frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

[0032] In the foregoing solution, the method further comprises:

[0033] transmitting second information, the second information indicating a frequency domain position of the first SSB.

[0034] In the foregoing solution, the method further comprises:

[0035] transmitting a second SSB, the second SSB comprising the first frequency domain offset and / or the second frequency domain offset.

[0036] In the foregoing solution, the method further comprises:

[0037] transmitting a second SSB, the second SSB being transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

[0038] The embodiments of the present disclosure further provide a frequency domain position determination apparatus, comprising:

[0039] a first receiving unit configured to receive a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB being a CRB where the frequency domain starting position of the second SSB is located, the first SSB being different from a frequency domain position of the second SSB;

[0040] The determining unit is configured to determine a third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB, and a first synchronization frequency point, and / or determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; the third frequency domain offset is an offset between a frequency domain start position of the first SSB and a frequency domain start position of a second CRB, and the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and a frequency domain start position of the first control resource, and the second CRB is a CRB in which the frequency domain start position of the first SSB is located.

[0041] The present disclosure further provides a frequency domain position determining apparatus, comprising:

[0042] The first sending unit is configured to send a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, and the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB in which the frequency domain start position of the second SSB is located, and the frequency domain positions of the first SSB and the second SSB being different.

[0043] The present disclosure further provides a terminal, comprising a first processor and a first communication interface; wherein,

[0044] The first communication interface is configured to receive a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, and the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB in which the frequency domain start position of the second SSB is located, and the frequency domain positions of the first SSB and the second SSB being different.

[0045] The first processor is configured to determine a third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB, and a first synchronization frequency point, and / or determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; the third frequency domain offset is an offset between a frequency domain start position of the first SSB and a frequency domain start position of a second CRB, and the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and a frequency domain start position of the first control resource, and the second CRB is a CRB in which the frequency domain start position of the first SSB is located.

[0046] The embodiment of the present disclosure further provides a network device, comprising a second processor and a second communication interface; wherein

[0047] The second communication interface is configured to send a first SSB, wherein the first SSB comprises a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicates an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicates an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB is a CRB where the frequency domain starting position of the second SSB is located, and the first SSB is different from the frequency domain position of the second SSB.

[0048] The embodiment of the present disclosure further provides a terminal, comprising a first processor and a first memory for storing a computer program capable of running on the first processor,

[0049] The first processor is configured to execute the steps of any of the above-mentioned terminal-side methods when the computer program is running.

[0050] The embodiment of the present disclosure further provides a network device, comprising a second processor and a second memory for storing a computer program capable of running on the second processor,

[0051] The second processor is configured to execute the steps of any of the above-mentioned network device-side methods when the computer program is running.

[0052] The embodiment of the present disclosure further provides a storage medium having a computer program stored thereon, wherein the computer program is executed by a processor to implement the steps of any of the above-mentioned terminal-side methods or the steps of any of the above-mentioned network device-side methods.

[0053] The embodiment of the present disclosure further provides a computer program product comprising a computer program, wherein the computer program is executed by a processor to implement the steps of any of the above-mentioned methods.

[0054] In the method, apparatus, network device, terminal, and storage medium provided in the embodiments of the present disclosure, the network device sends a first SSB; the terminal receives the first SSB, the first SSB including a first frequency domain offset and / or a second frequency domain offset, determines a third frequency domain offset according to the first frequency domain offset, a frequency domain position of the first SSB, and a first synchronization frequency point, and / or determines a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; the first frequency domain offset indicates an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicates an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB is a CRB in which the frequency domain start position of the second SSB is located, the frequency domain positions of the first SSB and the second SSB are different, the third frequency domain offset is an offset between a frequency domain start position of the first SSB and a frequency domain start position of a second CRB, the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and the frequency domain start position of the first control resource, and the second CRB is a CRB in which the frequency domain start position of the first SSB is located. It can be seen that in the embodiments of the present disclosure, the terminal can determine the third frequency domain offset and / or the fourth frequency domain offset according to the first SSB, so as to determine the frequency domain start position of the second CRB according to the third frequency domain offset, determine the frequency domain start position of the first control resource according to the fourth frequency domain offset and the frequency domain start position of the second CRB, and the first control resource is used for scheduling Remaining Minimum System Information (RMSI) or System Information Block 1 (SIB1). The above scheme enables the terminal to determine the position of the CRB resource grid and / or the frequency domain position of the first control resource when receiving the first SSB that is not sent on the first synchronization frequency point or the SSB including the information about the SSB of the other frequency point (different from the first synchronization frequency point) carried in the Master Information Block (MIB). BRIEF DESCRIPTION OF DRAWINGS

[0055] FIG. 1 is an example diagram of a related art SSB-subcarrierOffset field indicating the frequency domain position of a CRB;

[0056] FIG. 2 is an example diagram of a related art PDCCH-ConfigSIB1 field indicating the frequency domain position of a CORESET corresponding to a Type0-PDCCH CSS set;

[0057] FIG. 3 is an example diagram of a related art time domain adjustment of an SSB;

[0058] FIG. 4 is an example diagram of transmitting different SSBs according to the related art and embodiments of the present disclosure;

[0059] FIG. 5 is an example diagram of transmitting different SSBs according to the related art;

[0060] FIG. 6 is an example diagram of a terminal detecting SSBs according to the related art;

[0061] FIG. 7 is a flowchart of a frequency domain position determination method according to an embodiment of the present disclosure;

[0062] FIG. 8 is an example diagram of a third frequency domain offset according to an embodiment of the present disclosure;

[0063] FIG. 9 is an example diagram of a fourth frequency domain offset according to an embodiment of the present disclosure;

[0064] FIG. 10 is an example diagram of a fifth frequency domain offset according to an embodiment of the present disclosure;

[0065] FIG. 11 is an example diagram of a fifth frequency domain offset according to an embodiment of the present disclosure;

[0066] FIG. 12 is a flowchart of a frequency domain position determination method according to an embodiment of the present disclosure;

[0067] FIG. 13 is a structural diagram of a frequency domain position determination apparatus according to an embodiment of the present disclosure;

[0068] FIG. 14 is a structural diagram of a frequency domain position determination apparatus according to an embodiment of the present disclosure;

[0069] FIG. 15 is a structural diagram of a terminal according to an embodiment of the present disclosure;

[0070] FIG. 16 is a structural diagram of a network device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0071] In the related art, when a terminal or a user equipment (UE) is just powered on, the terminal will first perform basic time domain, frequency domain, and spatial domain synchronization based on a synchronization signal and a physical broadcast channel block (SSB). Meanwhile, the terminal also receives basic system information, such as a system information block (SIB) or SIB1, based on the SSB. Based on the system information, the terminal can obtain basic information of a current serving cell (or a serving frequency point), and further initiates random access and performs data transmission. In the prior art, the SSB can be transmitted at a frequency domain location of a synchronization signal block (also referred to as an SS block) in a synchronization raster, or the frequency domain location (center frequency point) of the SSB is the frequency domain location of a certain synchronization signal block. Table 1 gives an example of a relationship between the frequency domain location of the synchronization signal block and a global synchronization channel number (GSCN) for indicating the frequency domain location of the synchronization signal block at which the SSB can be transmitted. The terminal can scan or search for the SSB according to the frequency domain location of the synchronization signal block in Table 1.

[0072] Table 1

[0073] After the terminal is powered on, the terminal will first scan a frequency point at which the SSB can be transmitted according to a synchronization raster (or a synchronization frequency point) to detect the SSB transmitted by the base station. The SSB includes a master information block (MIB), and the MIB is used to indicate basic time domain, frequency domain, and spatial domain information, and a time-frequency location of a CORESET corresponding to a Type0-PDCCH CSS set corresponding to SIB1. The terminal searches for the SSB with a frequency domain location of a certain synchronization signal block in frequency domain locations of multiple synchronization signal blocks in the synchronization raster as a center frequency point when initially accessing, or the center frequency point (frequency domain location) of the searched SSB is the frequency domain location of the certain synchronization signal block in the frequency domain locations of the multiple synchronization signal blocks.

[0074] After receiving the SSB, the terminal can obtain the SSB-subcarrierOffset field in the MIB. Based on the field, the terminal can learn the difference or offset between the starting subcarrier (or called subcarrier 0) of the CRB corresponding to the frequency domain starting position of the received SSB and the starting subcarrier (or called subcarrier 0) of the SSB in the resource element (RE) level. Specifically, the RE is indicated in the granularity of the subcarrier interval of the SSB. FIG. 1 shows an example of the related art SSB-subcarrierOffset field indicating the frequency domain position of the CRB. In FIG. 1, indicates the CRB resource where the frequency domain starting position of the SSB (or the first RE / initial RE of the SSB) is located; Kssb is the interval or offset between the frequency domain starting position of the CRB and the frequency domain starting position of the SSB, in the unit of the subcarrier interval of the SSB.

[0075] After receiving the SSB, the terminal device can obtain the PDCCH-ConfigSIB1 field in the MIB. The field indicates the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set. The high 4 bits of the field will indicate the frequency domain offset from the CRB where the frequency domain starting position of the SSB is located to the frequency domain starting position of the CORESET corresponding to the Type0-PDCCH CSS set. Specifically, the high 4 bits indicate 16 possible values. Table 2 shows an example of the content indicated by the high 4 bits in the PDCCH-ConfigSIB1 field.

[0076] Table 2

[0077] In Table 2, the Number of RB CORESET parameter defines the number of RBs of the CORESET in the initial bandwidth part (BWP), and also defines the bandwidth of the initial BWP; currently, the protocol defines three bandwidths: 24 RBs, 48 RBs, and 96 RBs. The Number of Symbols CORESET parameter defines the number of symbols of the CORESET in the initial BWP, and the value range is 1-3; the offset (RBs) parameter defines the offset between the starting RB of the CORESET in the initial BWP and the RB0 of the SSB. FIG. 2 shows an example of the related art PDCCH-ConfigSIB1 field indicating the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set, and the unit of the indicated frequency domain position is the subcarrier interval of the CRB. CRBn in FIG. 2 is the CRB where the frequency domain starting position of the SSB is located.

[0078] As shown in FIG. 3, in order to realize the adjustment of the time-domain transmission of SSB, adaptation enhancement is needed for SSB; that is, when the network load increases, SSB is transmitted using a more intensive transmission mode; when the network load is small, SSB is transmitted using a more sparse transmission mode. In FIG. 3, SSB can be divided into always-transmitted SSB and on-off SSB, the always-transmitted SSB is sparse SSB, and the on-off SSB can be understood as SSB changing from dense to sparse.

[0079] In order not to affect the initial access of the terminal device of the old system (if the on-off SSB happens to be turned on, and the terminal device of the old system accesses the network based on the SSB, if the on-off SSB is turned off after a period of time, the terminal device of the old system cannot search for SSB, thereby affecting the performance of the terminal device), the on-off SSB can not be transmitted in the synchronization raster of the prior art, as shown in FIG. 4. It can be understood that the SSB not transmitted in the synchronization raster is the SSB not transmitted in the frequency domain position of the synchronization signal block in the synchronization raster.

[0080] Meanwhile, for a cell, the information carried in the SSB should be consistent. In other words, the information carried in the SSB not transmitted in the frequency domain position of the synchronization signal block is the same as the information carried in the SSB transmitted in the frequency domain position of the synchronization signal block. Since the MIB included in the SSB is high-layer configuration information, for a specific cell, there is only one set of MIB configuration; the SSB not transmitted in the synchronization raster still carries the MIB of the SSB transmitted in the synchronization raster, that is, the MIB in all SSBs indicates the frequency domain offset of the Kssb corresponding to the SSB transmitted in the synchronization raster and the Type0-PDCCH CSS set corresponding to the CORESET; when the terminal device receives the SSB not transmitted in the synchronization raster, it cannot directly determine the frequency domain position of the CRB and the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set based on the SSB.

[0081] As shown in FIG. 5, Kssb1 included in the SSB transmitted in the synchronization raster can indicate the frequency domain position of the CRB where the frequency domain starting position of the SSB is located, the PDCCH-ConfigSIB1 field included in the SSB transmitted in the synchronization raster can accurately indicate the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set; Kssb1 included in the SSB not transmitted in the synchronization raster cannot indicate the frequency domain position of the CRB where the frequency domain starting position of the SSB is located, the PDCCH-ConfigSIB1 field included in the SSB not transmitted in the synchronization raster cannot accurately indicate the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set; in addition, if the frequency domain positions of the SIB1 and the CORESET corresponding to the Type0-PDCCH CSS set in the system are unchanged, the MIB in the SSB also cannot indicate the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set.

[0082] In addition, for the on-off SSB, the adjustment of the transmission situation is very dynamic (sometimes there is, sometimes there is not; or sometimes long period, sometimes short period). When performing initial cell selection, if the terminal equipment follows the existing SSB transmission understanding, it may not be able to normally receive the SSB and access the cell, thereby causing the problem of increasing the initial access delay. FIG. 6 shows an example in which the terminal equipment cannot normally receive the SSB.

[0083] Based on this, in various embodiments of the present disclosure, the network device transmits a first SSB; the terminal receives the first SSB, the first SSB includes a first frequency domain offset and / or a second frequency domain offset, a third frequency domain offset is determined according to the first frequency domain offset, the frequency domain position of the first SSB and the first synchronization frequency point, and / or a fourth frequency domain offset is determined according to the second frequency domain offset, the frequency domain position of the first SSB and the first synchronization frequency point; the first frequency domain offset indicates the offset between the frequency domain starting position of the second SSB and the frequency domain starting position of the first CRB, the second frequency domain offset indicates the offset between the frequency domain starting position of the first CRB and the frequency domain starting position of the first control resource, the first CRB is the CRB where the frequency domain starting position of the second SSB is located, the frequency domain positions of the first SSB and the second SSB are different, the third frequency domain offset is the offset between the frequency domain starting position of the first SSB and the frequency domain starting position of the second CRB, and the fourth frequency domain offset is the offset between the frequency domain starting position of the second CRB and the frequency domain starting position of the first control resource, the second CRB is the CRB where the frequency domain starting position of the first SSB is located. It can be seen that in the embodiments of the present disclosure, the first SSB is an SSB not transmitted on the first synchronization frequency point, and the terminal can determine the third frequency domain offset and / or the fourth frequency domain offset according to the first SSB, so as to determine the frequency domain starting position of the second CRB according to the third frequency domain offset, and determine the frequency domain starting position of the first control resource according to the fourth frequency domain offset and the frequency domain starting position of the second CRB, the first control resource being used for scheduling RMSI or SIB1. The above scheme enables the terminal to determine the position of the CRB resource grid and / or the frequency domain position of the first control resource when receiving the first SSB not transmitted on the first synchronization frequency point, or when the received SSB includes the related information of the SSB of the other frequency point (different from the first synchronization frequency point) carried in the MIB.

[0084] The present disclosure will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0085] The present disclosure provides a frequency domain position determination method, applied to a terminal, which can be described as a terminal device or a UE. As shown in FIG. 7, the method includes:

[0086] Step 701: receiving a first SSB.

[0087] The first SSB includes a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicates the offset between the frequency domain starting position of the second SSB and the frequency domain starting position of the first CRB, the second frequency domain offset indicates the offset between the frequency domain starting position of the first CRB and the frequency domain starting position of the first control resource, the first CRB is the CRB where the frequency domain starting position of the second SSB is located, and the frequency domain positions of the first SSB and the second SSB are different.

[0088] Here, the terminal receives the first SSB transmitted by the network device, and the network device can be a base station or a cell. The first frequency domain offset can be understood as Kssb, first frequency domain offset information, a first frequency domain offset indication, or a first offset, which is carried in the SSB-subcarrierOffset field included in the MIB in the first SSB; the second frequency domain offset can be understood as second frequency domain offset information, a second frequency domain offset indication, or a second offset, which can be carried in the PDCCH-ConfigSIB1 field included in the MIB in the first SSB, for example, the second frequency domain offset can be an offset indicated by the high 4 bits of the PDCCH-configSIB1 field included in the MIB. The first frequency domain offset is a RE-level offset, that is, the first frequency domain offset is in units or granularity of the sub-carrier spacing (SCS) of the SSB, and the sub-carrier spacing of the first SSB is the same as that of the second SSB. The second frequency domain offset is a RB-level offset, and the second frequency domain offset is in units or granularity of the RB of the CRB, or the second frequency domain offset is in units or granularity of the sub-carrier spacing of the CRB, and the sub-carrier spacing of the first CRB is the same as that of the second CRB.

[0089] The first control resource is used for scheduling the remaining minimum system information (RMSI) or SIB1. The first control resource can be a CORESET corresponding to the Type0-PDCCH CSS set, that is, the first control resource can be CORESET0 / CSS0, and the corresponding English can be the CORESET for type0-PDCCH CSS set.

[0090] It should be noted that the frequency domain position can also be explained as subcarrier 0, or the frequency domain position corresponding to the starting subcarrier, or the center frequency point or frequency point. For example, the frequency domain position of the first SSB can be the center frequency point of the first SSB, or the center frequency point of the transmission occasion corresponding to the first SSB; the first synchronization frequency point can be the center frequency point of the second SSB, or the center frequency point of the transmission occasion corresponding to the second SSB. For another example, the frequency domain position of the first SSB can be the frequency point of the first SSB, or the frequency point of the transmission occasion corresponding to the first SSB; the first synchronization frequency point can be the frequency point of the second SSB, or the frequency point of the transmission occasion corresponding to the second SSB.

[0091] It should be noted that the first SSB can be understood as an SSB not transmitted on the first synchronization frequency point, or an SSB not transmitted on the frequency domain position of the synchronization signal block in the synchronization raster, or an SSB that is turned on and off.

[0092] It should be noted that when the terminal detects the first SSB at the frequency point or the transmission frequency point of the first SSB (or in other words, does not detect the SSB at the first synchronization frequency point, or in other words, detects the SSB at the "non-synchronization grid") when performing initial cell selection, the terminal considers, or in other words, the terminal can assume that:

[0093] In a possible implementation, the transmission period of the SSB is a first period, and a possible value of the first period is 160 milliseconds (ms);

[0094] In another possible implementation, the transmission period of the SSB can be 20, 40, 80, or 160 ms;

[0095] In another possible implementation, the transmission period of the SSB can be greater than 20 ms;

[0096] In another possible implementation, the terminal detects the first SSB at the current frequency point for at least a first time. For example, the first time is 160 ms.

[0097] In an embodiment, the transmission period of the first SSB is a first value, and the first value is a predefined value.

[0098] Here, the terminal can detect and receive the first SSB according to the transmission period of the first SSB. The first value can be 160 milliseconds (ms). It should be noted that the transmission period of the first SSB can also be configured and transmitted to the terminal device by the network device.

[0099] In the embodiments of the present disclosure, by defining the first value, the terminal can explicitly search for the preset transmission period of the first SSB at the frequency point, which can save the power consumption of the terminal, reduce the initial cell selection delay of the terminal, and improve the initial access efficiency.

[0100] In order to save the power consumption of the terminal, in an embodiment, the receiving the first SSB includes:

[0101] Detecting the first SSB at the frequency domain location of the first SSB for at least a first time, and the first time is a predefined value.

[0102] Here, the first time can be 160 milliseconds (ms). In the embodiments of the present disclosure, by defining the first time, the terminal can explicitly search for the time of the first SSB at the frequency point, and improve the initial access efficiency.

[0103] In order to accurately receive the second SSB, in an embodiment, the method further includes:

[0104] receive first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that a frequency domain location of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

[0105] Here, the terminal can receive the first information sent by the network device before receiving the first SSB or the second SSB, and receive the second SSB according to the first information. For example, the frequency domain location of the second SSB is determined according to the first information, and the second SSB is received at the frequency domain location of the second SSB. The second SSB can be transmitted on the first synchronization frequency point. The first frequency domain offset and / or the second frequency domain offset can be included in the second SSB; or the second SSB can be transmitted on the first synchronization frequency point, or the frequency domain location of the second SSB is the first synchronization frequency point, or the center frequency point of the second SSB is the first synchronization frequency point.

[0106] In the embodiments of the present disclosure, by indicating the transmission location or the frequency domain location of the second SSB through the first information, that is, indicating the location of the first synchronization frequency point, the terminal can quickly determine the first synchronization frequency point, reduce or lower the complexity of the terminal in calculating the fifth frequency domain offset and / or the sixth frequency domain offset, thereby reducing the complexity of the terminal in determining the third frequency domain offset and / or the fourth frequency domain offset; the terminal can also accurately receive the second SSB according to the first information, perform initial cell selection and access according to the second SSB, reduce the initial cell selection delay of the terminal, and thereby improve the initial access efficiency.

[0107] To facilitate the terminal in receiving the second SSB, the network device can transmit the second SSB on the first synchronization frequency point. Based on this, in an embodiment, the method further includes:

[0108] receiving a second SSB, the second SSB being transmitted on the first synchronization frequency point, or a frequency domain location of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

[0109] Here, the second SSB can be understood as an SSB transmitted on the first synchronization frequency point. The first frequency domain offset and / or the second frequency domain offset can be included in the first SSB.

[0110] It should be noted that, in the case that the terminal receives the second SSB, the terminal determines the frequency domain starting position of the first CRB based on the first frequency domain offset and the offset between the frequency domain starting position of the second SSB and the frequency domain starting position of the first CRB, so as to determine the frequency domain starting position or the frequency domain position of the first CRB; and determines the frequency domain starting position of the first control resource based on the second frequency domain offset and the offset between the frequency domain starting position of the first CRB and the frequency domain starting position of the first control resource, so as to determine the frequency domain starting position of the first control resource, i.e., the frequency domain starting position or the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set.

[0111] Step 702: determining a third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB and the first synchronization frequency point, and / or determining a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB and the first synchronization frequency point.

[0112] The third frequency domain offset is the offset between the frequency domain starting position of the first SSB and the frequency domain starting position of the second CRB, and the fourth frequency domain offset is the offset between the frequency domain starting position of the second CRB and the frequency domain starting position of the first control resource. The second CRB is the CRB in which the first SSB is located.

[0113] Here, the terminal determines the third frequency domain offset according to the first frequency domain offset, and according to the frequency domain position of the first SSB and the first synchronization frequency point; and / or determines the fourth frequency domain offset according to the second frequency domain offset, and according to the frequency domain position of the first SSB and the first synchronization frequency point. The frequency domain position of the first SSB can be informed to the terminal by the network device, can be determined or detected by the terminal in the process of receiving the first SSB, or can be a predefined value.

[0114] The terminal can determine the third frequency domain offset according to the first frequency domain offset and the offset value or difference value between the first synchronization frequency point and the frequency domain position of the first SSB; or can determine the third frequency domain offset according to the first frequency domain offset and the offset value or difference value between the frequency domain position of the first SSB and the first synchronization frequency point. The terminal can determine the fourth frequency domain offset according to the second frequency domain offset and the offset value or difference value between the first synchronization frequency point and the frequency domain position of the first SSB; or can determine the fourth frequency domain offset according to the second frequency domain offset and the offset value or difference value between the frequency domain position of the first SSB and the first synchronization frequency point.

[0115] It should be noted that, in the case that the terminal obtains the third frequency domain offset, the terminal can determine the frequency domain starting position of the second CRB or the frequency domain position of the second CRB according to the third frequency domain offset and the frequency domain starting position of the first SSB; in the case that the terminal determines the frequency domain starting position of the second CRB, the terminal can determine the frequency domain starting position of the first control resource according to the fourth frequency domain offset and the frequency domain starting position of the second CRB, so as to obtain the frequency domain starting position or the frequency domain position of the CORESET corresponding to the Type0-PDCCH CSS set.

[0116] The third frequency domain offset can be referred to as a third offset, which is a RE-level offset, that is, the third frequency domain offset is in units of or granularity of the subcarrier spacing of the SSB, and the subcarrier spacing of the first SSB is the same as the subcarrier spacing of the second SSB; the third frequency domain offset is shown in FIG. 8. The fourth frequency domain offset can be referred to as a fourth offset, which is a RB-level offset, that is, the fourth frequency domain offset is in units of or granularity of the subcarrier spacing of the CRB, or the fourth frequency domain offset is in units of or granularity of the RB of the CRB, and the subcarrier spacing of the first CRB is the same as the subcarrier spacing of the second CRB; the fourth frequency domain offset is shown in FIG. 9.

[0117] In order to quickly and accurately determine the third frequency domain offset, in an embodiment, the determining the third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point comprises:

[0118] determining a fifth frequency domain offset according to the frequency domain position of the first SSB and the first synchronization frequency point;

[0119] determining the third frequency domain offset according to the first frequency domain offset and the fifth frequency domain offset.

[0120] Here, the terminal determines the offset between the frequency domain position of the first SSB and the first synchronization frequency point according to the frequency domain position of the first SSB and the first synchronization frequency point, to obtain the fifth frequency domain offset; and determines the third frequency domain offset according to the first frequency domain offset and the fifth frequency domain offset. The fifth frequency domain offset is in units of or granularity of the subcarrier spacing of the SSB. The fifth frequency domain offset can be an offset value or a difference value of the first synchronization frequency point and the frequency domain position of the first SSB, or an offset value or a difference value of the frequency domain position of the first SSB and the first synchronization frequency point. The fifth frequency domain offset can be referred to as a fifth offset.

[0121] The terminal can determine the third frequency domain offset as the sum of the first frequency domain offset and the fifth frequency domain offset. The terminal can also determine the seventh frequency domain offset according to the first frequency domain offset and the fifth frequency domain offset, determine the fourth value according to 12 and the second value, and determine the third frequency domain offset according to the seventh frequency domain offset and the fourth value. The seventh frequency domain offset can be equal to the sum of the first frequency domain offset and the fifth frequency domain offset, or the seventh frequency domain offset can be equal to the first frequency domain offset minus the fifth frequency domain offset, and the fourth value can be the product of 12 and the second value. The seventh frequency domain offset can be referred to as the seventh frequency domain for short. It should be noted that the second value is the minimum value of the third value and 1, and the third value is the ratio between the subcarrier spacing of the CRB and the subcarrier spacing of the SSB. Since one RB has 12 subcarriers in the frequency domain, the fourth value is the product of 12 and the second value. The subcarrier spacing of the first CRB is the same as the subcarrier spacing of the second CRB, and the subcarrier spacing of the first SSB is the same as the subcarrier spacing of the second SSB. The subcarrier spacing can be understood as the interval of subcarriers.

[0122] For example, the terminal can determine the third frequency domain offset based on formula 1 or formula 2.

[0123] Formula 1 is: third frequency domain offset = (first frequency domain offset + fifth frequency domain offset) mod (12*second value). The fifth frequency domain offset can be the offset value or difference value of the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point. The fifth frequency domain offset is in units or granularity of the subcarrier spacing of the SSB. The second value is the minimum value of the third value and 1, and the third value is the ratio between the subcarrier spacing of the CRB and the subcarrier spacing of the SSB. It can be understood that the subcarrier spacing of the first SSB is the same as the subcarrier spacing of the second SSB, and the subcarrier spacing of the first CRB is the same as the subcarrier spacing of the second CRB. The fifth frequency domain offset can also be a predefined value.

[0124] Formula 2 is: third frequency domain offset = (first frequency domain offset - fifth frequency domain offset) mod (12*second value). The fifth frequency domain offset can be the offset value or difference value of the first synchronization frequency point and the frequency domain position of the first SSB, or the fifth frequency domain offset is equal to the first synchronization frequency point minus the frequency domain position of the first SSB. The fifth frequency domain offset can also be a predefined value.

[0125] In order to enable the terminal to more quickly calculate the third frequency domain offset to obtain the accurate frequency domain starting position of the second CRB, a calculation formula for calculating the third frequency domain offset can be defined. Based on this, in an embodiment, the third frequency domain offset is equal to (first frequency domain offset + fifth frequency domain offset) mod (12*second value); wherein,

[0126] The fifth frequency domain offset is an offset value or difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; the fifth frequency domain offset is in units or granularity of a subcarrier spacing of an SSB; the second value is a minimum value of 1 and a third value, and the third value is a ratio between a subcarrier spacing of a CRB and a subcarrier spacing of an SSB.

[0127] Here, the second value can be denoted as min(1, the third value). The third value is equal to the subcarrier spacing of the CRB / the subcarrier spacing of the SSB.

[0128] For example, if the first frequency domain offset is 11, the fifth frequency domain offset is 36, the subcarrier spacing of the SSB is 15 KHz, and the subcarrier spacing of the CRB is 30 KHz, then the third frequency domain offset is (11+36) mod (12*2) = 23.

[0129] To improve the efficiency of determining the third frequency domain offset, in an embodiment, the fifth frequency domain offset is a predefined value.

[0130] Here, the fifth frequency domain offset can be an offset value or difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; the fifth frequency domain offset is in units or granularity of a subcarrier spacing of an SSB. Since the fifth frequency domain offset is a predefined value, the terminal can directly read the fifth frequency domain offset, and the terminal does not need to determine the fifth frequency domain offset, which can improve the efficiency of determining the third frequency domain offset.

[0131] To quickly and accurately determine the fourth frequency domain offset, in an embodiment, the fourth frequency domain offset is determined according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point, including:

[0132] According to the frequency domain position of the first SSB and the first synchronization frequency point, a sixth frequency domain offset is determined;

[0133] The fourth frequency domain offset is determined according to the second frequency domain offset and the sixth frequency domain offset.

[0134] Here, the terminal can determine the fourth frequency domain offset as the sum of the second frequency domain offset and the sixth frequency domain offset, i.e., fourth frequency domain offset = second frequency domain offset + sixth frequency domain offset. The terminal can also determine the fourth frequency domain offset as the frequency domain offset obtained by subtracting the sixth frequency domain offset from the second frequency domain offset, i.e., fourth frequency domain offset = second frequency domain offset - sixth frequency domain offset. The sixth frequency domain offset is in units of or granularity of RBs of CRBs. Thus, the frequency domain location of the CORESET corresponding to the Type0-PDCCH CSS set can be determined according to the first SSB. The sixth frequency domain offset can be the offset value or difference between the first synchronization frequency point and the frequency domain location of the first SSB, or the offset value or difference between the frequency domain location of the first SSB and the first synchronization frequency point. The sixth frequency domain offset can be referred to as a sixth offset.

[0135] For example, the terminal can determine the fourth frequency domain offset based on formula 3 or formula 4.

[0136] Formula 3 is: the fourth frequency domain offset is equal to the second frequency domain offset plus the sixth frequency domain offset, the sixth frequency domain offset is the offset value or difference between the frequency domain location of the first SSB and the first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain location of the first SSB minus the first synchronization frequency point; the sixth frequency domain offset can also be a predefined value. The sixth frequency domain offset is in units of or granularity of RBs of CRBs.

[0137] Formula 4 is: the fourth frequency domain offset is equal to the second frequency domain offset minus the sixth frequency domain offset. The sixth frequency domain offset can be the offset value or difference between the first synchronization frequency point and the frequency domain location of the first SSB, or the sixth frequency domain offset is equal to the first synchronization frequency point minus the frequency domain location of the first SSB; the sixth frequency domain offset can also be a predefined value.

[0138] In order to enable the terminal to more quickly calculate the fourth frequency domain offset to obtain the accurate frequency domain starting location of the CORESET corresponding to the Type0-PDCCH CSS set, a formula for calculating the fourth frequency domain offset can be defined. Based on this, in an embodiment, the fourth frequency domain offset is equal to the sum of the second frequency domain offset and the sixth frequency domain offset, the sixth frequency domain offset is the offset value or difference between the frequency domain location of the first SSB and the first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain location of the first SSB minus the first synchronization frequency point.

[0139] Here, the fourth frequency domain offset is equal to the second frequency domain offset plus the sixth frequency domain offset; the sixth frequency domain offset is in units of or granularity of RBs of CRBs. For example, if the second frequency domain offset is 36 and the sixth frequency domain offset is 24, then the fourth frequency domain offset is (36 + 24) = 60.

[0140] In order to improve the efficiency of determining the fourth frequency domain offset, in an embodiment, the sixth frequency domain offset is a predefined value.

[0141] Here, the sixth frequency domain offset can be an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; the sixth frequency domain offset is in units of RBs of CRB. Since the sixth frequency domain offset is a predefined value, the terminal can directly read the sixth frequency domain offset, and the terminal does not need to determine the sixth frequency domain offset, which can improve the efficiency of determining the fourth frequency domain offset.

[0142] Before determining the third frequency domain offset and / or the fourth frequency domain offset, the terminal needs to obtain the frequency domain position of the first SSB, which can be a predefined value or indicated by the network side. Based on this, in an embodiment, the frequency domain position of the first SSB is a predefined value, or the method further comprises:

[0143] receiving second information indicating the frequency domain position of the first SSB.

[0144] Here, the terminal can determine the frequency domain position of the first SSB according to the second information. Alternatively, the frequency domain position of the first SSB is a predefined value.

[0145] Since the frequency domain position of the first SSB is a predefined value, the terminal can directly read the frequency domain position of the first SSB, and the terminal does not need to detect or identify or determine the frequency domain position of the first SSB, which can improve the efficiency of determining the third frequency domain offset and / or the fourth frequency domain offset. By indicating the frequency domain position of the first SSB through the second information, the terminal can quickly determine the frequency domain position of the first SSB, thereby reducing or reducing the complexity of the terminal determining the third frequency domain offset and / or the fourth frequency domain offset; it can also accurately or correctly receive the first SSB according to the second information, so as to perform initial cell selection and access according to the first SSB, thereby reducing the initial cell selection delay of the terminal, thereby improving the initial access efficiency.

[0146] In an embodiment, the first synchronization frequency point is the frequency domain position of the synchronization signal block closest to the frequency domain position of the first SSB in the synchronization raster.

[0147] It should be noted that the first synchronization frequency point can also be a predefined synchronization frequency point or frequency domain position or frequency point. The synchronization raster is a grid in the frequency domain, which includes the frequency domain positions of multiple synchronization signal blocks (Synchronization signal block frequency position). The English name of the synchronization signal block is Synchronization Signal Block or SS Block.

[0148] In the embodiments of the present disclosure, since the synchronization raster is a predefined frequency point, the terminal can quickly determine the synchronization raster closest to the first SSB, reduce or lower the complexity of the terminal in calculating the fifth frequency domain offset and / or the sixth frequency domain offset, and reduce or lower the complexity of the terminal in determining the third frequency domain offset and / or determining the fourth frequency domain offset.

[0149] In order to reduce or lower the complexity of the terminal in calculating the fifth frequency domain offset and / or the sixth frequency domain offset, and reduce or lower the complexity of the terminal in determining the third frequency domain offset and / or determining the fourth frequency domain offset, in an embodiment, the first synchronization frequency point is a frequency domain position of a synchronization signal block in the synchronization raster, which is closest to the frequency domain position of the first SSB and lower than the frequency domain position of the first SSB in the frequency domain, or the first synchronization frequency point is a frequency domain position of a synchronization signal block in the synchronization raster, which is closest to the frequency domain position of the first SSB and higher than the frequency domain position of the first SSB in the frequency domain.

[0150] Here, the frequency domain position of the first synchronization frequency point is closest to the frequency domain position of the first SSB, and the frequency domain position of the first synchronization frequency point can be lower or higher than the frequency domain position of the first SSB; the fifth frequency domain offset and the sixth frequency domain offset can be positive or negative. As shown in FIG. 10, in the case that the frequency domain position of the first synchronization frequency point is lower than the frequency domain position of the first SSB, the fifth frequency domain offset and the sixth frequency domain offset are positive values or positive numbers. As shown in FIG. 11, in the case that the frequency domain position of the first synchronization frequency point is higher than the frequency domain position of the first SSB, the fifth frequency domain offset and the sixth frequency domain offset are negative values or negative numbers.

[0151] Correspondingly, the embodiments of the present disclosure also provide a frequency domain position determination method, applied to a network device, the network device comprising a base station, as shown in FIG. 12, the method comprising:

[0152] Step 1201: transmitting a first SSB.

[0153] The first SSB comprises a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB being a CRB where the frequency domain starting position of the second SSB is located, and the frequency domain position of the first SSB being different from that of the second SSB.

[0154] In an embodiment, the frequency domain position of the first SSB is a predefined value.

[0155] In an embodiment, the first synchronization frequency point is a frequency domain position of a synchronization signal block in the synchronization raster, which is closest to the frequency domain position of the first SSB.

[0156] In an embodiment, the first synchronization frequency point is a frequency domain position of a synchronization signal block in the synchronization raster, which is lower than the frequency domain position of the first SSB and closest to the frequency domain position of the first SSB, or the first synchronization frequency point is a frequency domain position of a synchronization signal block in the synchronization raster, which is higher than the frequency domain position of the first SSB and closest to the frequency domain position of the first SSB.

[0157] In order to enable the terminal to determine the first synchronization frequency point more quickly and reduce or lower the complexity of the terminal in calculating the fifth frequency domain offset and / or the sixth frequency domain offset, the network device can indicate the transmission position of the second SSB to the terminal. Based on this, in an embodiment, the method further includes:

[0158] sending first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that the frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating the center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

[0159] Here, the network device can send the first information to the terminal before sending the first SSB or sending the second SSB.

[0160] In order to facilitate the terminal to accurately receive the first SSB and reduce the power consumption of the terminal, the network side can indicate the frequency domain position of the first SSB. Based on this, in an embodiment, the method further includes:

[0161] sending second information, the second information indicating the frequency domain position of the first SSB.

[0162] In an embodiment, the method further includes:

[0163] sending the second SSB, the second SSB including the first frequency domain offset and / or the second frequency domain offset.

[0164] Here, the network device can send the second SSB before sending the first SSB, so that the terminal, in the case of receiving the second SSB, determines the offset between the frequency domain start position of the second SSB and the frequency domain start position of the first CRB based on the first frequency domain offset, thereby determining the frequency domain start position or the frequency domain position of the first CRB; determines the offset between the frequency domain start position of the first CRB and the frequency domain start position of the first control resource based on the second frequency domain offset, thereby determining the frequency domain start position of the first control resource, i.e., determining the frequency domain start position or the frequency domain position of the CORESET corresponding to the type 0-PDCCH CSS set.

[0165] In an embodiment, the method further includes:

[0166] transmitting a second SSB, the second SSB being transmitted on the first synchronization frequency point, or a frequency domain location of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

[0167] To implement the method on the terminal side, the embodiments of the present disclosure further provide a frequency domain location determination apparatus, which is arranged on a terminal, as shown in FIG. 13, and the apparatus includes:

[0168] a first receiving unit 1301 configured to receive a first SSB, the first SSB including a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start location of a second SSB and a frequency domain start location of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start location of the first CRB and a frequency domain start location of a first control resource, the first CRB being a CRB where the frequency domain start location of the second SSB is located, the first SSB being different from a frequency domain location of the second SSB;

[0169] a determining unit 1302 configured to determine a third frequency domain offset according to the first frequency domain offset, the frequency domain location of the first SSB and a first synchronization frequency point, and / or to determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain location of the first SSB and the first synchronization frequency point, the third frequency domain offset being an offset between the frequency domain start location of the first SSB and a frequency domain start location of a second CRB, the fourth frequency domain offset being an offset between the frequency domain start location of the second CRB and the frequency domain start location of the first control resource, the second CRB being a CRB where the frequency domain start location of the first SSB is located.

[0170] In an embodiment, the first synchronization frequency point is a frequency domain location of a synchronization signal block in a synchronization raster closest to the frequency domain location of the first SSB.

[0171] In an embodiment, the first synchronization frequency point is a frequency domain location of a synchronization signal block in a synchronization raster lower than the frequency domain location of the first SSB and closest to the frequency domain location of the first SSB, or the first synchronization frequency point is a frequency domain location of a synchronization signal block in a synchronization raster higher than the frequency domain location of the first SSB and closest to the frequency domain location of the first SSB.

[0172] In an embodiment, the apparatus further includes:

[0173] The second receiving unit is configured to receive first information, where the first information indicates that the second SSB is transmitted on the first synchronization frequency point, or the first information indicates that a frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicates a center frequency point of the second SSB, and the center frequency point of the second SSB is the first synchronization frequency point.

[0174] In an embodiment, the apparatus further includes:

[0175] The third receiving unit is configured to receive a second SSB, where the second SSB is transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB is the first synchronization frequency point, or a center frequency point of the second SSB is the first synchronization frequency point.

[0176] In an embodiment, the third frequency domain offset is equal to (the first frequency domain offset + the fifth frequency domain offset) mod (12*the second value), where the fifth frequency domain offset is an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point, and the second value is a minimum value of a third value and 1, and the third value is a ratio between a subcarrier spacing of a CRB and a subcarrier spacing of an SSB.

[0177] In an embodiment, the fifth frequency domain offset is a predefined value.

[0178] In an embodiment, the fourth frequency domain offset is equal to the second frequency domain offset plus a sixth frequency domain offset, and the sixth frequency domain offset is an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point.

[0179] In an embodiment, the fifth frequency domain offset is a predefined value.

[0180] In an embodiment, the sixth frequency domain offset is a predefined value.

[0181] In an embodiment, the frequency domain position of the first SSB is a predefined value, or the apparatus further includes:

[0182] The fourth receiving unit is configured to receive second information, where the second information indicates the frequency domain position of the first SSB.

[0183] In an embodiment, a transmission period of the first SSB is a first value, and the first value is a predefined value.

[0184] In an embodiment, the first receiving unit 1301 is specifically configured to detect the first SSB at the frequency domain location of the first SSB at least within a first time, and the first time is a predefined value.

[0185] In actual application, the first receiving unit 1301, the second receiving unit, the third receiving unit and the fourth receiving unit can be implemented by a processor in a frequency domain location determination apparatus in combination with a communication interface, and the determination unit 1302 can be implemented by a processor in the frequency domain location determination apparatus.

[0186] In order to implement the method on the network equipment side in the embodiments of the present disclosure, the embodiments of the present disclosure further provide a frequency domain location determination apparatus arranged on a network equipment, as shown in FIG. 14, the apparatus comprises:

[0187] A first sending unit 1401 is configured to send a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB being a CRB where the frequency domain starting position of the second SSB is located, and the first SSB being different from the frequency domain position of the second SSB.

[0188] In an embodiment, the apparatus further comprises:

[0189] A second sending unit is configured to send first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that the frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

[0190] In an embodiment, the apparatus further comprises:

[0191] A third sending unit is configured to send second information, the second information indicating the frequency domain position of the first SSB.

[0192] In an embodiment, the apparatus further comprises:

[0193] A fourth sending unit is configured to send a second SSB, the second SSB comprising the first frequency domain offset and / or the second frequency domain offset.

[0194] In an embodiment, the apparatus further comprises:

[0195] The fifth sending unit is configured to send a second SSB, wherein the second SSB is transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB is the first synchronization frequency point, or a center frequency point of the second SSB is the first synchronization frequency point.

[0196] In actual application, the first sending unit 1401, the second sending unit, the third sending unit, the fourth sending unit, and the fifth sending unit can be implemented by a processor in the frequency domain position determination apparatus in combination with a communication interface.

[0197] It should be noted that: the above embodiment provides the frequency domain position determination apparatus, and only the above-mentioned division of each program module is used as an example for illustration. In actual application, the above-mentioned processing can be completed by different program modules according to needs, that is, the internal structure of the apparatus is divided into different program modules to complete all or part of the above-mentioned processing. In addition, the frequency domain position determination apparatus and the frequency domain position determination method provided in the above embodiment belong to the same concept, and the specific implementation process is detailed in the method embodiment, which will not be repeated here.

[0198] Based on the hardware implementation of the above program modules, and in order to implement the method on the terminal side of the embodiment of the present disclosure, the embodiment of the present disclosure further provides a terminal, as shown in FIG. 15, the terminal 1500 comprises:

[0199] The first communication interface 1501 can interact with other network nodes.

[0200] The first processor 1502 is connected with the first communication interface 1501 to realize information interaction with other network nodes, and is used to run a computer program to execute the method provided by one or more technical solutions on the terminal side. The computer program is stored on the first memory 1503.

[0201] Specifically, the first communication interface 1501 is configured to receive a first SSB, wherein the first SSB comprises a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicates an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicates an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB is a CRB where the frequency domain starting position of the second SSB is located, and the frequency domain position of the first SSB is different from that of the second SSB.

[0202] The first processor 1502 is configured to determine a third frequency domain offset according to the first frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point, and / or determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; the third frequency domain offset is an offset between the frequency domain start position of the first SSB and the frequency domain start position of a second CRB, and the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and the frequency domain start position of the first control resource, and the second CRB is a CRB in which the frequency domain start position of the first SSB is located.

[0203] In an embodiment, the first synchronization frequency point is a frequency domain position of a synchronization signal block in a synchronization raster closest to the frequency domain position of the first SSB.

[0204] In an embodiment, the first synchronization frequency point is a frequency domain position of a synchronization signal block in a synchronization raster lower than the first SSB and closest to the frequency domain position of the first SSB, or the first synchronization frequency point is a frequency domain position of a synchronization signal block in a synchronization raster higher than the first SSB and closest to the frequency domain position of the first SSB.

[0205] In an embodiment, the first communication interface 1501 is further configured to receive first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that the frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, and the center frequency point of the second SSB is the first synchronization frequency point.

[0206] In an embodiment, the first communication interface 1501 is further configured to receive a second SSB, and the second SSB is transmitted on the first synchronization frequency point, or the frequency domain position of the second SSB is the first synchronization frequency point, or the center frequency point of the second SSB is the first synchronization frequency point.

[0207] In an embodiment, the third frequency domain offset is equal to (the first frequency domain offset + the fifth frequency domain offset) mod (12*the second value); wherein,

[0208] The fifth frequency domain offset is an offset value or a difference value between the frequency domain position of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point; and the second value is the minimum value of a third value and 1, and the third value is a ratio between a subcarrier spacing of a CRB and a subcarrier spacing of an SSB.

[0209] In an embodiment, the fourth frequency domain offset is equal to a sum of the second frequency domain offset and a sixth frequency domain offset, the sixth frequency domain offset is an offset value or difference value between the frequency domain position of the first SSB and a first synchronization frequency point, or the sixth frequency domain offset is equal to the frequency domain position of the first SSB minus the first synchronization frequency point.

[0210] In an embodiment, the fifth frequency domain offset is a predefined value.

[0211] In an embodiment, the sixth frequency domain offset is a predefined value.

[0212] In an embodiment, the frequency domain position of the first SSB is a predefined value, or the first communication interface 1501 is further configured to receive second information, the second information indicating the frequency domain position of the first SSB.

[0213] In an embodiment, the transmission period of the first SSB is a first value, and the first value is a predefined value.

[0214] In an embodiment, the first communication interface 1501 is specifically configured to detect the first SSB at the frequency domain position of the first SSB at least in a first time, and the first time is a predefined value.

[0215] It should be noted that the specific processing process of the first processor 1502 and the first communication interface 1501 can be understood with reference to the above method.

[0216] Of course, in actual application, various components in the terminal 1500 are coupled together through the bus system 1504. It can be understood that the bus system 1504 is used to realize the connection and communication between the components. In addition to including a data bus, the bus system 1504 also includes a power bus, a control bus and a status signal bus. However, for the purpose of clear illustration, various buses are marked as the bus system 1504 in FIG. 15.

[0217] The first memory 1503 in the embodiment of the present disclosure is used to store various types of data to support the operation of the terminal 1500. Examples of these data include: any computer programs used for operation on the terminal 1500.

[0218] The method disclosed by the embodiments of the present disclosure can be applied to the first processor 1502 or implemented by the first processor 1502. The first processor 1502 can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method can be completed by integrated logic circuits of hardware in the first processor 1502 or instructions in the form of software. The first processor 1502 described above can be a general processor, a digital signal processor (DSP), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The first processor 1502 can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present disclosure. The general processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiments of the present disclosure, the hardware decoding processor can be directly embodied as a hardware decoding processor to complete execution, or a combination of hardware and software modules in the decoding processor to complete execution. The software module can be located in a storage medium, which is located in the first memory 1503, and the first processor 1502 reads the information in the first memory 1503 to complete the steps of the above method in combination with the hardware.

[0219] In exemplary embodiments, the terminal 1500 can be implemented by one or more application specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), field programmable gate arrays (FPGAs), general-purpose processors, controllers, micro controller units (MCUs), microprocessors, or other electronic elements, for executing the foregoing method.

[0220] Based on the hardware implementation of the above program module, and in order to implement the method on the network device side in the embodiments of the present disclosure, the embodiments of the present disclosure further provide a network device. As shown in FIG. 16, the network device 1600 includes:

[0221] The second communication interface 1601 can interact with other network nodes to exchange information;

[0222] The second processor 1602 is connected with the second communication interface 1601 to realize information interaction with other network nodes, and is used to run a computer program to execute the method provided by one or more technical solutions of the network device. The computer program is stored in the second memory 1603.

[0223] Specifically, the second communication interface 1601 is configured to send a first SSB, the first SSB including a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting position of a second SSB and a frequency domain starting position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain starting position of the first CRB and a frequency domain starting position of a first control resource, the first CRB being a CRB where the frequency domain starting position of the second SSB is located, and the first SSB having a different frequency domain position from the second SSB.

[0224] In an embodiment, the second communication interface 1601 is further configured to send first information, the first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that a frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

[0225] In an embodiment, the second communication interface 1601 is further configured to send second information, the second information indicating a frequency domain position of the first SSB.

[0226] In an embodiment, the second communication interface 1601 is further configured to send a second SSB, the second SSB including the first frequency domain offset and / or the second frequency domain offset.

[0227] In an embodiment, the second communication interface 1601 is further configured to send a second SSB, the second SSB being transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

[0228] It should be noted that the specific processing process of the second processor 1602 and the second communication interface 1601 can be understood with reference to the above method.

[0229] Of course, in practice, the various components of network device 1600 are coupled together by a bus system 1604. It is understood that more than one bus system can be present in the network device 1600, and that the bus system 1604 can include a number of bus segments. The various components of network device 1600 are coupled together and to the bus system 1604 via bus adapters (not shown). The bus adapters can be any of a number of different types of adapters suitable for coupling components together and to the bus system 1604. For example, the bus adapters can include a plurality of integrated circuits, a plurality of integrated circuits and logic for handling data communications, a plurality of integrated circuits and a plurality of logic gates, or a plurality of integrated circuits and a plurality of discrete hardware components.

[0230] The second memory 1603 in the embodiments of the present disclosure is configured to store various types of data to support the operation of the network device 1600. Examples of the data include: any computer programs for operating on the network device 1600.

[0231] The method disclosed in the above embodiments of the present disclosure can be applied to the second processor 1602 or implemented by the second processor 1602. The second processor 1602 can be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above method can be completed by the integrated logic circuit of hardware or the instruction in the form of software in the second processor 1602. The second processor 1602 described above can be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The second processor 1602 can implement or execute the disclosed methods, steps and logic block diagrams in the embodiments of the present disclosure. The general-purpose processor can be a microprocessor or any conventional processor, etc. In combination with the steps of the method disclosed in the embodiments of the present disclosure, the hardware decoding processor can be directly embodied as a hardware decoding processor to complete execution, or a combination of hardware and software modules in the decoding processor to complete execution. The software module can be located in the storage medium, which is located in the second memory 1603, and the second processor 1602 reads the information in the second memory 1603 to complete the steps of the above method in combination with the hardware.

[0232] In exemplary embodiments, the network device 1600 can be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general-purpose processors, controllers, MCUs, Microprocessors, or other electronic elements for executing the above method.

[0233] It can be understood that the memory (the first memory 1503 and the second memory 1603) of the embodiments of the present disclosure can be a volatile memory or a non-volatile memory, and can also include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (Read Only Memory, ROM), a programmable read-only memory (Programmable Read-Only Memory, PROM), an erasable programmable read-only memory (Erasable Programmable Read-Only Memory, EPROM), an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a ferromagnetic random access memory (ferromagnetic random access memory, FRAM), a flash memory (Flash Memory), a magnetic surface memory, an optical disc, or a compact disc read-only memory (Compact Disc Read-Only Memory, CD-ROM); the magnetic surface memory can be a disk memory or a tape memory. The volatile memory can be a random access memory (Random Access Memory, RAM) used as an external cache. By way of example but not limitation, many forms of RAM can be used, such as static random access memory (Static Random Access Memory, SRAM), synchronous static random access memory (Synchronous Static Random Access Memory, SSRAM), dynamic random access memory (Dynamic Random Access Memory, DRAM), synchronous dynamic random access memory (Synchronous Dynamic Random Access Memory, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate Synchronous Dynamic Random Access Memory, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced Synchronous Dynamic Random Access Memory, ESDRAM), synchronous link dynamic random access memory (SyncLink Dynamic Random Access Memory, SLDRAM), direct memory bus random access memory (Direct Rambus Random Access Memory, DRRAM).The memory described in the embodiments of the present disclosure is intended to include, but not limited to, these and any other suitable types of memory.

[0234] In the example embodiments, the embodiments of the present disclosure also provide a storage medium, specifically a computer readable storage medium, for example, a first memory 1503 storing a computer program executable by the first processor 1502 of the terminal 1500 to complete the steps of the aforementioned terminal side method. For another example, a second memory 1603 storing a computer program executable by the second processor 1602 of the network device 1600 to complete the steps of the aforementioned network device side method. The computer readable storage medium can be FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disc, or CD-ROM, etc.

[0235] In the example embodiments, the embodiments of the present disclosure also provide a computer program product, including a computer program executable by the first processor 1502 of the terminal 1500 to complete the steps of the aforementioned terminal side method. The computer program is executable by the second processor 1602 of the network device 1600 to complete the steps of the aforementioned network device side method.

[0236] It should be noted that "first", "second", etc. are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. Multiple items can be two or more items, and multiple can be two or more.

[0237] In addition, the technical solutions described in the embodiments of the present disclosure can be combined arbitrarily without conflict.

[0238] The above is only a preferred embodiment of the present disclosure, and is not intended to limit the protection scope of the present disclosure.

Claims

1. A method for determining a frequency domain location, comprising: receiving a first synchronization signal and physical broadcast channel block (SSB), the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain starting location of a second SSB and a frequency domain starting location of a first common resource block (CRB), the second frequency domain offset indicating an offset between the frequency domain starting location of the first CRB and a frequency domain starting location of a first control resource, the first CRB being a CRB where the frequency domain starting location of the second SSB is located, the first SSB having a different frequency domain location from the second SSB; determining a third frequency domain offset according to the first frequency domain offset, the frequency domain location of the first SSB and a first synchronization frequency point, and / or determining a fourth frequency domain offset according to the second frequency domain offset, the frequency domain location of the first SSB and the first synchronization frequency point; the third frequency domain offset being an offset between the frequency domain starting location of the first SSB and a frequency domain starting location of a second CRB, the fourth frequency domain offset being an offset between the frequency domain starting location of the second CRB and the frequency domain starting location of the first control resource, the second CRB being a CRB where the frequency domain starting location of the first SSB is located.

2. The method of claim 1, wherein, the first synchronization frequency point being a frequency domain location of a synchronization signal block in a synchronization raster that is closest to the frequency domain location of the first SSB.

3. The method of claim 1, wherein, the first synchronization frequency point being a frequency domain location of a synchronization signal block in a synchronization raster that is closest to the frequency domain location of the first SSB, or the first synchronization frequency point being a frequency domain location of a synchronization signal block in a synchronization raster that is closest to the frequency domain location of the first SSB. 4.The method of claim 1, further comprising: receiving first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that the frequency domain location of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point. 5.The method of claim 1, further comprising: receiving a second SSB, the second SSB being transmitted on the first synchronization frequency point, or the frequency domain location of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

6. The method according to any one of claims 1 to 5, wherein, the third frequency domain offset being equal to (the first frequency domain offset + a fifth frequency domain offset) mod (12* a second value) ; wherein the fifth frequency domain offset being an offset value or a difference value between the frequency domain location of the first SSB and the first synchronization frequency point, or the fifth frequency domain offset being equal to the frequency domain location of the first SSB minus the first synchronization frequency point, and the second value being a minimum value of a third value and 1, the third value being a ratio between a subcarrier spacing of a CRB and a subcarrier spacing of an SSB.

7. The method according to any one of claims 1 to 5, wherein, The fourth frequency domain offset is equal to a sum of the second frequency domain offset and a sixth frequency domain offset, the sixth frequency domain offset being an offset value or difference value between a frequency domain position of the first SSB and a first synchronization frequency point, or the sixth frequency domain offset being equal to the frequency domain position of the first SSB minus the first synchronization frequency point.

8. The method of claim 6, wherein, The fifth frequency domain offset is a predefined value.

9. The method of claim 7, wherein, The sixth frequency domain offset is a predefined value.

10. The method according to any one of claims 1 to 5, 8, 9, wherein, The frequency domain position of the first SSB is a predefined value, or the method further comprises: receiving second information indicating the frequency domain position of the first SSB.

11. The method according to any one of claims 1 to 5, 8, 9, wherein, The transmission period of the first SSB is a first value, the first value being a predefined value.

12. The method according to any one of claims 1 to 5, 8, 9, wherein, The receiving the first SSB comprises: detecting the first SSB at the frequency domain position of the first SSB at least within a first time, the first time being a predefined value.

13. A frequency domain position determination method, comprising: transmitting a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB where the frequency domain start position of the second SSB is located, the first SSB being different from the frequency domain position of the second SSB.

14. The method of claim 13, the method further comprising: transmitting first information indicating that the second SSB is transmitted on the first synchronization frequency point, or the first information indicating that a frequency domain position of the second SSB is the first synchronization frequency point, or the first information indicating a center frequency point of the second SSB, the center frequency point of the second SSB being the first synchronization frequency point.

15. The method of claim 13, the method further comprising: transmitting second information indicating a frequency domain position of the first SSB.

16. The method of any one of claims 13 to 15, the method further comprising: transmitting a second SSB, the second SSB comprising the first frequency domain offset and / or the second frequency domain offset.

17. The method of any one of claims 13 to 15, the method further comprising: transmitting a second SSB, the second SSB being transmitted on the first synchronization frequency point, or a frequency domain position of the second SSB being the first synchronization frequency point, or a center frequency point of the second SSB being the first synchronization frequency point.

18. A frequency domain position determination apparatus, comprising: The first receiving unit is configured to receive a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB where the frequency domain start position of the second SSB is located, the first SSB being different from the second SSB in frequency domain position; The determining unit is configured to determine a third frequency domain offset according to the first frequency domain offset, a frequency domain position of the first SSB, and a first synchronization frequency point, and / or determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; The third frequency domain offset is an offset between the frequency domain start position of the first SSB and a frequency domain start position of a second CRB, and the fourth frequency domain offset is an offset between the frequency domain start position of the second CRB and the frequency domain start position of the first control resource, the second CRB being a CRB where the frequency domain start position of the first SSB is located.

19. A frequency domain position determination apparatus, comprising: The first sending unit is configured to send a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB where the frequency domain start position of the second SSB is located, the first SSB being different from the second SSB in frequency domain position.

20. A terminal comprising: The first processor and the first communication interface; wherein The first communication interface is configured to receive a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB where the frequency domain start position of the second SSB is located, the first SSB being different from the second SSB in frequency domain position; The first processor is configured to determine a third frequency domain offset according to the first frequency domain offset, a frequency domain position of the first SSB, and a first synchronization frequency point, and / or determine a fourth frequency domain offset according to the second frequency domain offset, the frequency domain position of the first SSB, and the first synchronization frequency point; the third frequency domain offset being an offset between the frequency domain start position of the first SSB and a frequency domain start position of a second CRB, and the fourth frequency domain offset being an offset between the frequency domain start position of the second CRB and the frequency domain start position of the first control resource, the second CRB being a CRB where the frequency domain start position of the first SSB is located.

21. A network device comprising: a second processor and a second communication interface; wherein the second communication interface is configured to transmit a first SSB, the first SSB comprising a first frequency domain offset and / or a second frequency domain offset, the first frequency domain offset indicating an offset between a frequency domain start position of a second SSB and a frequency domain start position of a first CRB, the second frequency domain offset indicating an offset between the frequency domain start position of the first CRB and a frequency domain start position of a first control resource, the first CRB being a CRB where the frequency domain start position of the second SSB is located, the first SSB having a different frequency domain position than the second SSB.

22. A terminal comprising a first processor and a first memory for storing a computer program capable of running on the first processor, wherein the first processor being configured to perform the steps of the method according to any one of claims 1 to 12 when running the computer program.

23. A network device comprising a second processor and a second memory for storing a computer program capable of running on the second processor, wherein the second processor being configured to perform the steps of the method according to any one of claims 13 to 17 when running the computer program.

24. A storage medium having stored thereon a computer program, the computer program being executable by a processor to perform the steps of the method according to any one of claims 1 to 12 or to perform the steps of the method according to any one of claims 13 to 17.

25. A computer program product comprising a computer program, the computer program being executable by a processor to perform the steps of the method according to any one of claims 1 to 17.

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