Method and apparatus for determining transmission time of synchronization signal block, and readable storage medium

Abstract

Provided in the present disclosure are a method and apparatus for determining the transmission time of a synchronization signal block (SSB), and a readable storage medium. The method comprises: receiving configuration information sent by a network device, wherein the configuration information is used for indicating at least one of the following: SSB transmission period, SSB transmission time offset, SSB transmission reference time, or SSB transmission start time; when the configuration information comprises the SSB transmission start time, determining, on the basis of the configuration information, the time domain position for SSB transmission by a secondary serving cell; and / or determining, on the basis of the configuration information and transmission indication information, the time domain position for SSB transmission by the secondary serving cell, wherein the transmission indication information is used for indicating the transmission state of the SSB. The present disclosure can effectively determine the time domain position for SSB transmission by a secondary serving cell, thereby preventing a terminal from blindly searching for an SSB within an SSB period, and further reducing power consumption of the terminal.

Description

Method, device and readable storage medium for determining synchronization signal block transmission time

[0001] The present disclosure claims priority from a Chinese patent application No. 202411387062.2 filed on September 30, 2024, and entitled "Method, device and readable storage medium for determining synchronization signal block transmission time", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present disclosure relates to the technical field of communication, and in particular to a method, device and readable storage medium for determining synchronization signal block transmission time. BACKGROUND

[0003] Wireless mobile communication networks usually deploy a large number of base stations, which are usually operated 24 hours a day without interruption, so a large amount of energy is consumed by the base stations of the mobile communication network every day.

[0004] In order to reduce energy consumption and realize a green communication network, an energy saving mechanism is introduced in a wireless communication system. When a user has a demand, a secondary serving cell can transmit different configurations of synchronization signal blocks (SSBs) at different times, and the SSBs can not be transmitted all the time.

[0005] However, in the related art, a terminal cannot determine the time domain position of the SSBs transmitted by the secondary serving cell, resulting in blind search of the SSBs and thus inability to reduce the power consumption of the terminal. SUMMARY

[0006] The present disclosure provides a method, device and readable storage medium for determining synchronization signal block transmission time, which solves the technical problem that in the related art, the time domain position of the SSBs transmitted by the secondary serving cell cannot be effectively determined, resulting in blind search of the SSBs and thus inability to reduce the power consumption of the terminal.

[0007] In a first aspect, the present disclosure provides a method for determining synchronization signal block transmission time, applied to a terminal, comprising:

[0008] receiving configuration information sent by a network device, the configuration information comprising at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission;

[0009] in a case where the start time of SSB transmission is included in the configuration information, determining the time domain position of the SSBs transmitted by the secondary serving cell according to the configuration information; and / or, determining the time domain position of the SSBs transmitted by the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate the transmission state of the SSBs.

[0010] In the embodiments of the present disclosure, the terminal receives the configuration information sent by the network device, and can determine the time domain position of the SSB transmitted by the secondary serving cell through the configuration information including the start time of the SSB transmission, and / or the configuration information and the transmission indication information. It is realized that the terminal can effectively determine the time domain position of the SSB transmitted by the secondary serving cell through the configuration information including the start time of the SSB transmission, and / or the configuration information combined with the transmission indication information, and blind search of the SSB in the SSB cycle by the terminal is avoided, thereby the power consumption of the terminal can be reduced.

[0011] In some embodiments, the reference time of the SSB transmission includes any of the following:

[0012] The time of the reference cell is taken as the reference time;

[0013] The time of the special cell is taken as the reference time;

[0014] The time of the current secondary serving cell is taken as the reference time, and the current secondary serving cell is the secondary serving cell currently transmitting the SSB;

[0015] The time of the special cell is taken as the reference time before synchronization, and the time of the current secondary serving cell is taken as the reference time after synchronization;

[0016] The time of the reference cell is taken as the reference time before synchronization, and the time of the current secondary serving cell is taken as the reference time after synchronization.

[0017] In the embodiments of the present disclosure, through the reference time of the SSB transmission, it can be determined which time of the cell is taken as the reference time of the SSB transmission, and through the start time of the SSB transmission in the configuration information and / or the transmission indication information, the time domain position of the SSB transmitted by the secondary serving cell can be effectively determined, blind search of the SSB in the SSB cycle by the terminal is avoided, and the power consumption of the terminal can be reduced.

[0018] In some embodiments, the start time of the SSB transmission is:

[0019] The start time of the first system frame number (SFN).

[0020] In the embodiments of the present disclosure, according to the starting time of the SSB transmission being the starting time of the first SFN, and the SSB transmission period and / or the time offset of the SSB transmission in the configuration information, or according to the starting time of the SSB transmission being the starting time of the first SFN, and the SSB transmission period and / or the time offset of the SSB transmission, the reference time of the SSB transmission in the configuration information, the time domain position of the SSB transmitted by the secondary serving cell can be effectively determined, the terminal is avoided from blindly searching for the SSB in the SSB period, and then the power consumption of the terminal can be reduced.

[0021] In some embodiments, the time offset of the SSB transmission includes at least one of:

[0022] The time offset of the secondary serving cell and the special cell;

[0023] The time offset of the secondary serving cell and the reference cell;

[0024] The SSB time offset of the secondary serving cell.

[0025] In the embodiments of the present disclosure, by the time offset of the SSB transmission, and the SSB transmission period in the configuration information, in combination with the starting time of the SSB transmission and / or the transmission indication information, or by the time offset of the SSB transmission, and the SSB transmission period and the reference time of the SSB transmission in the configuration information, in combination with the starting time of the SSB transmission and / or the transmission indication information, the time domain position of the SSB transmitted by the secondary serving cell can be effectively determined, the terminal is avoided from blindly searching for the SSB in the SSB period, and then the power consumption of the terminal can be reduced.

[0026] In some embodiments, the unit of the time offset of the SSB transmission is any one of:

[0027] Millisecond level;

[0028] Slot level;

[0029] Symbol level.

[0030] In some embodiments, the SSB time offset of the secondary serving cell includes at least one of:

[0031] The first time offset of the SSB of the secondary serving cell and the SSB defined by the cell;

[0032] The second time offset of the SSB of the secondary serving cell and the SSB always transmitted;

[0033] The time offset of the SSB appearing with the secondary serving cell as the time reference;

[0034] The time offset of the SSB appearing with the special cell as the time reference;

[0035] A time offset of a time when the SSB occurs with reference to the reference cell.

[0036] In some embodiments, the first time offset is:

[0037] a time offset by which a transmission time of the first SSB is later than a transmission time of the SSB defined by the first cell, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the SSB defined by the first cell; wherein the SSB defined by the first cell is an M1th SSB defined by the first cell with SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0038] In some embodiments, the second time offset is:

[0039] a time offset by which a transmission time of the first SSB is later than a transmission time of the SSB always transmitted, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the SSB always transmitted;

[0040] wherein the SSB always transmitted is an M2th SSB always transmitted with SFN equal to N2, N2 and M2 are both greater than or equal to 0, and N2 and M2 are both integers.

[0041] In some embodiments, if the configuration information includes a plurality of SSB transmission periods and / or a plurality of time offsets of SSB transmission, determining the time domain position of the SSB transmitted by the secondary serving cell according to the configuration information and the transmission indication information includes:

[0042] determining the SSB transmission period and / or the time offset of SSB transmission to be used from the configuration information according to the transmission indication information;

[0043] determining the time domain position of the SSB transmitted by the secondary serving cell according to the SSB transmission period and / or the time offset of SSB transmission to be used.

[0044] In the embodiments of the present disclosure, if the configuration information includes a plurality of SSB transmission periods and / or a plurality of time offsets of SSB transmission, the SSB transmission period and / or the time offset of SSB transmission to be used can be selected from the configuration information through the transmission indication information, and then the time domain position of the SSB transmitted by the secondary serving cell is determined, which avoids the terminal to blindly search for the SSB within the SSB period, and thus the power consumption of the terminal can be reduced.

[0045] In some embodiments, the method further includes:

[0046] determining a start effective time of the SSB transmission;

[0047] wherein the start effective time of the SSB transmission includes at least one of:

[0048] a start time of the SSB transmission indicated by the network device;

[0049] a time when the transmission indication information is received;

[0050] a time when the terminal waits for processing the signal after receiving the transmission indication information;

[0051] a start time of the SFN closest to the time when the transmission indication information is received;

[0052] a start time of the SFN next to the time when the transmission indication information is received;

[0053] a start time of the SFN previous to the time when the transmission indication information is received;

[0054] a start time of the SSB that is always transmitted closest to the time when the transmission indication information is received;

[0055] a start time of the SSB that is always transmitted next to the time when the transmission indication information is received;

[0056] a start time of the SSB that is always transmitted previous to the time when the transmission indication information is received.

[0057] In the embodiments of the present disclosure, in the process of determining the time domain position of the SSB transmission of the secondary serving cell, the start time of the SSB transmission is determined, and then the SSB transmission is determined, which can avoid the terminal to blindly search for the SSB in the SSB period, and further can reduce the power consumption of the terminal.

[0058] In some embodiments, after receiving the time offset of the SSB transmission, the calculation manner of the time offset of the SSB transmission includes at least one of the following:

[0059] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the special cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the special cell as the time reference;

[0060] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0061] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the reference cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the reference cell as the time reference;

[0062] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0063] In the case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0064] In the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0065] In the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or, in the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB;

[0066] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0067] In a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0068] In a case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the second time offset and the time offset of the always-transmitted SSB.

[0069] In the embodiments of the present disclosure, the calculation manner of the time offset of the SSB transmission can be implemented by one or more of the above-mentioned manners, to determine the time offset of the SSB transmission to be used, and then to determine the time domain position of the SSB transmission of the secondary serving cell by the SSB transmission period in the configuration information, the start time of the SSB transmission and / or the transmission indication information, or by the SSB transmission period in the configuration information, the reference time of the SSB transmission, and the start time of the SSB transmission and / or the transmission indication information, to avoid the terminal from blindly searching for the SSB in the SSB period, and to reduce the power consumption of the terminal.

[0070] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0071] a frequency point and a physical cell identifier (PCI);

[0072] an index of the secondary serving cell;

[0073] a cell global identifier (CGI).

[0074] In some embodiments, the first SFN is any one of the following:

[0075] a preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0076] The terminal receives the N3th SFN after receiving the transmission indication information sent by the network device, where N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0077] In some embodiments, the configuration information includes at least one of:

[0078] information of addition of the secondary serving cell;

[0079] information of SSB configuration of the secondary serving cell;

[0080] information of measurement object configuration.

[0081] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0082] In a second aspect, the present disclosure provides a method for determining a synchronization signal block transmission time, applied to a network device, and the method comprises:

[0083] sending configuration information and transmission indication information to the terminal, the transmission indication information being used to indicate an SSB transmission state; wherein the configuration information is used to determine a time domain position of SSB transmission of the secondary serving cell based on the transmission indication information; and / or,

[0084] sending configuration information including a start time of SSB transmission to the terminal, wherein the configuration information is used to determine a time domain position of SSB transmission of the secondary serving cell;

[0085] The configuration information includes at least one of: a synchronization signal block SSB transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

[0086] In the embodiments of the present disclosure, the network device can send configuration information including a start time of SSB transmission to the terminal, and / or the configuration information and the transmission indication information, so that the terminal can effectively determine the time domain position of SSB transmission of the secondary serving cell through the configuration information, and / or the configuration information in combination with the transmission indication information, thereby avoiding the terminal from blindly searching for SSBs within an SSB period, and further reducing the power consumption of the terminal.

[0087] In some embodiments, the reference time of SSB transmission includes any of:

[0088] taking the time of the reference cell as the reference time;

[0089] taking the time of the special cell as the reference time;

[0090] taking the time of the current secondary serving cell as the reference time, the current secondary serving cell being the secondary serving cell currently sending the SSB;

[0091] Before synchronization, the time of the special cell is used as the reference time, and after synchronization, the time of the current secondary serving cell is used as the reference time.

[0092] Before synchronization, the time of the reference cell is used as the reference time, and after synchronization, the time of the current secondary serving cell is used as the reference time.

[0093] In some embodiments, the start time of the SSB transmission is:

[0094] The start time of the first system frame number (SFN).

[0095] In some embodiments, the time offset of the SSB transmission includes at least one of:

[0096] The time offset of the secondary serving cell and the special cell;

[0097] The time offset of the secondary serving cell and the reference cell;

[0098] The SSB time offset of the secondary serving cell.

[0099] In some embodiments, the unit of the time offset of the SSB transmission is any of:

[0100] Millisecond level;

[0101] Slot level;

[0102] Symbol level.

[0103] In some embodiments, the SSB time offset of the secondary serving cell includes at least one of:

[0104] The first time offset of the SSB of the secondary serving cell and the cell-defined SSB;

[0105] The second time offset of the SSB of the secondary serving cell and the SSB that is always transmitted;

[0106] The time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0107] The time offset of the SSB occurrence with the special cell as the time reference;

[0108] The time offset of the SSB occurrence with the reference cell as the time reference.

[0109] In some embodiments, the first time offset is:

[0110] The transmission time of the first SSB is later than the transmission time of the SSB defined by the first cell by a time offset, or the transmission time of the first SSB is earlier than the transmission time of the SSB defined by the first cell by a time offset; wherein the SSB defined by the first cell is the M1th SSB defined by the first cell with SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0111] In some embodiments, the second time offset is:

[0112] The transmission time of the first SSB is later than the transmission time of the SSB always transmitted by a time offset, or the transmission time of the first SSB is earlier than the transmission time of the SSB always transmitted by a time offset; wherein the SSB always transmitted is the M2th SSB always transmitted with SFN equal to N2, N2 and M2 are both greater than or equal to 0, and N2 and M2 are both integers.

[0113] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0114] a frequency point and a physical cell identifier (PCI);

[0115] a secondary serving cell index;

[0116] a cell global identifier (CGI).

[0117] In some embodiments, the first SFN is any of the following:

[0118] a preconfigured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0119] the N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0120] In some embodiments, the configuration information is included in at least one of the following:

[0121] information about addition of a secondary serving cell;

[0122] information about SSB configuration of a secondary serving cell;

[0123] information about measurement object configuration.

[0124] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0125] In a third aspect, the present disclosure provides a device for determining transmission time of a synchronization signal block, the device being applied to a terminal, and the device comprising a memory, a transceiver, and a processor.

[0126] a memory for storing a computer program; a transceiver for transceiving data under control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations:

[0127] receive configuration information sent by the network device, the configuration information comprising at least one of: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission;

[0128] in a case where the start time of SSB transmission is included in the configuration information, determine, according to the configuration information, a time domain position of the SSB transmitted by the secondary serving cell; and / or, determine, according to the configuration information and transmission indication information, the time domain position of the SSB transmitted by the secondary serving cell, the transmission indication information being used to indicate a transmission state of the SSB.

[0129] In some embodiments, the reference time of SSB transmission comprises any one of:

[0130] a time of the reference cell as the reference time;

[0131] a time of the special cell as the reference time;

[0132] a time of the current secondary serving cell as the reference time, the current secondary serving cell being the secondary serving cell currently transmitting the SSB;

[0133] a time of the special cell as the reference time before synchronization, and a time of the current secondary serving cell as the reference time after synchronization;

[0134] a time of the reference cell as the reference time before synchronization, and a time of the current secondary serving cell as the reference time after synchronization.

[0135] In some embodiments, the start time of SSB transmission is:

[0136] a start time of a first system frame number (SFN).

[0137] In some embodiments, the time offset of SSB transmission comprises at least one of:

[0138] a time offset of the secondary serving cell and the special cell;

[0139] a time offset of the secondary serving cell and the reference cell;

[0140] an SSB time offset of the secondary serving cell.

[0141] In some embodiments, a unit of the time offset of SSB transmission is any one of:

[0142] a millisecond level;

[0143] Slot level

[0144] Symbol level.

[0145] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of:

[0146] a first time offset of the SSB of the secondary serving cell to a cell-defined SSB;

[0147] a second time offset of the SSB of the secondary serving cell to an always-transmitted SSB;

[0148] a time offset of a SSB occurrence with the secondary serving cell as a time reference;

[0149] a time offset of a SSB occurrence with a special cell as a time reference;

[0150] a time offset of a SSB occurrence with a reference cell as a time reference.

[0151] In some embodiments, the first time offset is:

[0152] a time offset of a transmission time of the first SSB later than a transmission time of a first cell-defined SSB, or a time offset of the transmission time of the first SSB earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0153] In some embodiments, the second time offset is:

[0154] a time offset of a transmission time of the first SSB later than a transmission time of an always-transmitted SSB, or a time offset of the transmission time of the first SSB earlier than the transmission time of the always-transmitted SSB;

[0155] wherein the always-transmitted SSB is an M2th always-transmitted SSB with SFN equal to N2, N2 and M2 are both greater than or equal to 0, and N2 and M2 are both integers.

[0156] In some embodiments, if the configuration information comprises a plurality of SSB transmission periods and / or a plurality of time offsets of SSB transmission, the processor is configured to, when determining the time domain position of the SSB transmission of the secondary serving cell according to the configuration information and the transmission indication information, comprising:

[0157] determining the SSB transmission period and / or the time offset of SSB transmission to be used from the configuration information according to the transmission indication information;

[0158] The time domain position of the SSB transmitted by the secondary serving cell is determined according to a SSB transmission period to be used and / or a time offset of the SSB transmission.

[0159] In some embodiments, the processor is further configured to perform the following operations:

[0160] determine a start effective time of the SSB transmission;

[0161] The start effective time of the SSB transmission includes at least one of the following:

[0162] a start time of the SSB transmission indicated by the network device;

[0163] a time when the transmission indication information is received;

[0164] a time of waiting for the terminal to process the signal after the transmission indication information is received;

[0165] a start time of the nearest SFN to the time when the transmission indication information is received;

[0166] a start time of the next SFN to the time when the transmission indication information is received;

[0167] a start time of the previous SFN to the time when the transmission indication information is received;

[0168] a start time of the nearest always-transmitted SSB to the time when the transmission indication information is received;

[0169] a start time of the next always-transmitted SSB to the time when the transmission indication information is received;

[0170] a start time of the previous always-transmitted SSB to the time when the transmission indication information is received.

[0171] In some embodiments, after the time offset of the SSB transmission is received, the calculation of the time offset of the SSB transmission includes at least one of the following:

[0172] In a case where the time of the special cell is used as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the special cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the special cell as the time reference;

[0173] In a case where the time of the special cell is used as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0174] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the reference cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0175] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0176] In a case where the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0177] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0178] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or in a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB;

[0179] In the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0180] In the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0181] In the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0182] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0183] a frequency point and a physical cell identifier (PCI);

[0184] an index of the secondary serving cell;

[0185] a cell global identifier (CGI).

[0186] In some embodiments, the first SFN is any one of the following:

[0187] a pre-configured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0188] The terminal receives the N3th SFN after receiving the transmission indication information sent by the network device, where N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0189] In some embodiments, the configuration information includes at least one of:

[0190] Information of secondary service cell addition;

[0191] Information of SSB configuration of the secondary service cell;

[0192] Information of measurement object configuration.

[0193] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0194] In a fourth aspect, the present disclosure provides a determination apparatus of synchronization signal block transmission time, the apparatus is applied to a network device, and the apparatus includes a memory, a transceiver, and a processor:

[0195] The memory is used to store a computer program; the transceiver is used to transceive data under the control of the processor; and the processor is used to read the computer program in the memory and perform the following operations:

[0196] Send configuration information and transmission indication information to the terminal, the transmission indication information is used to indicate the SSB transmission state; wherein the configuration information is used to determine the time domain position of the secondary service cell transmitting the SSB based on the transmission indication information; and / or,

[0197] Send the configuration information including the start time of the SSB transmission to the terminal, wherein the configuration information is used to determine the time domain position of the secondary service cell transmitting the SSB;

[0198] The configuration information includes at least one of the following: synchronization signal block SSB transmission period, SSB transmission time offset, SSB transmission reference time, and SSB transmission start time.

[0199] In some embodiments, the SSB transmission reference time includes any of the following:

[0200] Taking the time of the reference cell as the reference time;

[0201] Taking the time of the special cell as the reference time;

[0202] Taking the time of the current secondary service cell as the reference time, the current secondary service cell being the secondary service cell currently transmitting the SSB;

[0203] Taking the time of the special cell as the reference time before synchronization, and taking the time of the current secondary service cell as the reference time after synchronization;

[0204] Before synchronization, the time of the reference cell is used as the reference time, and after synchronization, the time of the current secondary serving cell is used as the reference time.

[0205] In some embodiments, the start time of the SSB transmission is:

[0206] the start time of the first system frame number (SFN).

[0207] In some embodiments, the time offset of the SSB transmission includes at least one of:

[0208] a time offset of the secondary serving cell and the special cell;

[0209] a time offset of the secondary serving cell and the reference cell;

[0210] an SSB time offset of the secondary serving cell.

[0211] In some embodiments, the unit of the time offset of the SSB transmission is any one of:

[0212] a millisecond level;

[0213] a slot level;

[0214] a symbol level.

[0215] In some embodiments, the SSB time offset of the secondary serving cell includes at least one of:

[0216] a first time offset of the SSB of the secondary serving cell and the SSB defined by the cell;

[0217] a second time offset of the SSB of the secondary serving cell and the SSB always transmitted;

[0218] a time offset of the occurrence of the SSB with the secondary serving cell as the time reference;

[0219] a time offset of the occurrence of the SSB with the special cell as the time reference;

[0220] a time offset of the occurrence of the SSB with the reference cell as the time reference.

[0221] In some embodiments, the first time offset is:

[0222] a time offset at which the transmission time of the first SSB is later than the transmission time of the first cell-defined SSB, or a time offset at which the transmission time of the first SSB is earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is the M1th cell-defined SSB with the SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0223] In some embodiments, the second time offset is:

[0224] a time offset sent later than a transmission time of the first SSB from a transmission time of the SSB always transmitted, or a time offset sent earlier than the transmission time of the first SSB from the transmission time of the SSB always transmitted; wherein the SSB always transmitted is the M2th SSB always transmitted with SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

[0225] In some embodiments, if a time of the reference cell is taken as a reference time, the configuration information further comprises at least one of the following:

[0226] a frequency point and a physical cell identifier (PCI);

[0227] an auxiliary serving cell index;

[0228] a cell global identifier (CGI).

[0229] In some embodiments, the first SFN is any one of the following:

[0230] a preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0231] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0232] In some embodiments, the configuration information comprises at least one of the following:

[0233] information of addition of the auxiliary serving cell;

[0234] information of SSB configuration of the auxiliary serving cell;

[0235] information of measurement object configuration.

[0236] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0237] In a fifth aspect, the present disclosure provides a determination apparatus of transmission time of a synchronization signal block, the apparatus being applied to a terminal, and the apparatus comprising:

[0238] a receiving unit, configured to receive configuration information sent by a network device, the configuration information comprising at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission;

[0239] The processing unit is configured to, in a case where the configuration information includes a start time of SSB transmission, determine a time domain position of SSB transmission of the secondary serving cell according to the configuration information; and / or determine the time domain position of SSB transmission of the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate a transmission state of the SSB.

[0240] In a sixth aspect, the present disclosure provides a determination apparatus of synchronization signal block transmission time, the apparatus being applied to a network device, and the apparatus comprises:

[0241] The sending unit is configured to send configuration information and transmission indication information to a terminal, the transmission indication information being used to indicate a transmission state of a synchronization signal block (SSB); wherein the configuration information is used to determine a time domain position of SSB transmission of a secondary serving cell based on the transmission indication information; and / or,

[0242] The sending unit is configured to send configuration information including a start time of SSB transmission to a terminal, wherein the configuration information is used to determine a time domain position of SSB transmission of a secondary serving cell.

[0243] The configuration information comprises at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

[0244] In a seventh aspect, the present disclosure provides a non-transitory readable storage medium, the non-transitory readable storage medium storing a computer program, the computer program being used to make a processor execute the method of any one of the above aspects.

[0245] The present disclosure provides a determination method and apparatus of synchronization signal block transmission time, and a readable storage medium. A terminal receives configuration information sent by a network device, and can determine a time domain position of SSB transmission of a secondary serving cell by using the configuration information including a start time of SSB transmission, and / or the configuration information and transmission indication information. The terminal can effectively determine the time domain position of SSB transmission of the secondary serving cell by using the configuration information including the start time of SSB transmission, and / or the configuration information combined with the transmission indication information, so as to avoid blind search of SSB in an SSB period, and further reduce power consumption of the terminal.

[0246] It should be understood that the content described in the foregoing summary section is not intended to limit or define key or important features of the embodiments of the present disclosure, nor is it used to limit the scope of the present disclosure. Other features of the present disclosure will become apparent from the following description. BRIEF DESCRIPTION OF DRAWINGS

[0247] In order to more clearly illustrate the technical solutions in the present disclosure or the related art, the following will briefly introduce the drawings needed to be used in the embodiments or the related description. Obviously, the drawings described below are only some of the embodiments of the present disclosure, and the ordinary skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0248] Fig. 1 is a flow diagram of a method for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0249] Fig. 2 is an interaction diagram 1 of a method for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0250] Fig. 3 is an interaction diagram 2 of a method for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0251] Fig. 4 is a flow diagram of a method for determining a synchronization signal block transmission time according to another embodiment of the present disclosure;

[0252] Fig. 5 is a structural diagram of a device for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0253] Fig. 6 is a structural diagram of a device for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0254] Fig. 7 is a structural diagram of a device for determining a synchronization signal block transmission time according to an embodiment of the present disclosure;

[0255] Fig. 8 is a structural diagram of a device for determining a synchronization signal block transmission time according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0256] In the embodiments of the present disclosure, the term "and / or" describes the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. The character " / " generally represents an "or" relationship between the associated objects before and after it.

[0257] In the embodiments of the present disclosure, the term "a plurality of" means two or more, and other quantifiers are similar.

[0258] The technical solutions in the embodiments of the present disclosure will be described clearly and completely in the following with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only some of the embodiments of the present disclosure, and not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by the ordinary skilled in the art without any creative effort are within the scope of protection of the present disclosure.

[0259] The embodiment of the present disclosure provides a method and device for determining synchronization signal block (SSB) transmission time. A network device provides configuration information to a terminal, and / or configuration information and transmission indication information. The terminal can effectively determine the time domain position of SSB transmission of a secondary serving cell by the configuration information including the start time of SSB transmission, and / or the configuration information combined with the transmission indication information, thereby avoiding blind search of SSB in the terminal in the SSB period, and further reducing the power consumption of the terminal.

[0260] The method and the device are based on the same application concept. Since the principles of the method and the device for solving problems are similar, the implementation of the device and the method can be referred to each other, and the repeated parts will not be described again.

[0261] Embodiments of the present disclosure will be described below with reference to the accompanying drawings. In the case of no conflict between the embodiments, the embodiments described below and the features in the embodiments can be combined with each other. In addition, the step sequence in each method embodiment described below is only an example, not a strict limitation.

[0262] Referring to FIG. 1, FIG. 1 is a flowchart of a method for determining synchronization signal block (SSB) transmission time provided by the embodiment of the present disclosure. The execution subject of the method for determining SSB transmission time provided by the embodiment is a terminal, such as a user equipment (English: User Equipment, abbreviated as: UE) or a user side. The method for determining SSB transmission time is described in detail below.

[0263] The method for determining SSB transmission time provided by the embodiment of the present disclosure includes the following steps:

[0264] Step 101, receiving configuration information sent by a network device, the configuration information including at least one of the following: synchronization signal block (SSB) transmission period, time offset of SSB transmission, reference time of SSB transmission, start time of SSB transmission;

[0265] Step 102, in the case that the configuration information includes the start time of SSB transmission, determining the time domain position of SSB transmission of a secondary serving cell according to the configuration information; and / or determining the time domain position of SSB transmission of the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate the transmission state of SSB.

[0266] In the embodiments of the present disclosure, the terminal receives the configuration information sent by the network device, and can determine the time domain position of the SSB transmitted by the secondary serving cell through the configuration information including the start time of the SSB transmission, and / or the configuration information and the transmission indication information. The terminal can effectively determine the time domain position of the SSB transmitted by the secondary serving cell through the configuration information including the start time of the SSB transmission, and / or the configuration information combined with the transmission indication information, and blind search of the SSB in the SSB period is avoided, thereby reducing the power consumption of the terminal.

[0267] In the case that the start time of the SSB transmission is included in the configuration information, it can be understood that the start time of the SSB transmission is included in the configuration information. The following will not be described in detail.

[0268] In some embodiments, the configuration information includes: an SSB transmission period, a time offset of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information and the transmission indication information.

[0269] The configuration information includes: an SSB transmission period, a time offset of SSB transmission, and a start time of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information.

[0270] The configuration information includes: an SSB transmission period, a reference time of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information and the transmission indication information.

[0271] The configuration information includes: an SSB transmission period, a reference time of SSB transmission, and a start time of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information.

[0272] The configuration information includes: an SSB transmission period, a time offset of SSB transmission, and a reference time of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information and the transmission indication information.

[0273] The configuration information includes: an SSB transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission; and the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information.

[0274] In the case that the network side does not configure the time offset of the SSB transmission, it can be considered that the value of the time offset of the SSB transmission is equal to 0. In the case that the network side does not configure the transmission period of the SSB of the secondary serving cell, it can be considered that the transmission period of the SSB is equal to the transmission period of the SSB always transmitted or equal to the transmission period of the SSB defined by the cell.

[0275] In some embodiments, the SSB transmission period refers to a period of SSB transmission, which can be equal to or not equal to a conventional period. In this patent, no limitation is made.

[0276] In the embodiments of the present disclosure, by means of the SSB transmission period, in combination with the start time of SSB transmission and / or transmission indication information, or by means of the SSB transmission period, in combination with the time offset of SSB transmission and the start time of SSB transmission and / or transmission indication information, or by means of the SSB transmission period, in combination with the time offset of SSB transmission and the reference time of SSB transmission and the start time of SSB transmission and / or transmission indication information, the time domain position of SSB transmission of the secondary serving cell can be effectively determined, blind search of SSB in the SSB period by the terminal can be avoided, and the power consumption of the terminal can be reduced.

[0277] For example, in the case that the user side receives the configuration information of the network side (for example, a network device, etc., which will not be described below), the time domain position of SSB transmission of the secondary serving cell can be determined by at least three ways as follows:

[0278] Way 1: If the start time of SSB transmission is included in the configuration information received by the user side, the time domain position of SSB transmission of the secondary serving cell can be determined according to the configuration information without transmission indication information.

[0279] For way 1, referring to FIG. 2, FIG. 2 is an interaction schematic diagram one of a method for determining the transmission time of a synchronization signal block provided by the embodiments of the present disclosure. The steps of the method for determining the transmission time of the synchronization signal block include:

[0280] Step 201: The network device sends configuration information to the terminal; wherein the configuration information includes the start time of SSB transmission, and the configuration information further includes at least one of the following: the SSB transmission period, the time offset of SSB transmission, and the reference time of SSB transmission.

[0281] Step 202: The terminal determines the time domain position of SSB transmission of the secondary serving cell according to the configuration information.

[0282] Way 2: After the user side receives the configuration information, in the case that the user side receives the transmission indication information (sent by the network side), the time domain position of SSB transmission of the secondary serving cell is determined based on the configuration information and the transmission indication information.

[0283] For way 2, referring to FIG. 3, FIG. 3 is an interaction schematic diagram two of a method for determining the transmission time of a synchronization signal block provided by the embodiments of the present disclosure. The steps of the method for determining the transmission time of the synchronization signal block include:

[0284] Step 301, the network device sends configuration information to the terminal; wherein the configuration information comprises at least one of the following: synchronization signal block (SSB) transmission period, SSB transmission time offset, and SSB transmission reference time.

[0285] Step 302, the network device sends transmission indication information to the terminal; wherein the transmission indication information is used to indicate the transmission state of the SSB.

[0286] Step 303, the terminal determines the time domain position of the SSB transmission of the secondary serving cell according to the configuration information and the transmission indication information.

[0287] In step 301, the configuration information and the transmission indication information in step 302 can be sent simultaneously or not. If the configuration information and the transmission indication information are sent simultaneously, the configuration information and the transmission indication information can be carried by the same message or signaling, or the configuration information and the transmission indication information can be carried by different messages and / or different signaling, which is not limited herein. If the configuration information and the transmission indication information are not sent simultaneously, the order of step 301 and step 302 is not limited.

[0288] It should be noted that FIG. 2 and FIG. 3 can be implemented independently or in combination (for example, corresponding to mode 3), which is not limited herein.

[0289] Mode 3: If the configuration information received by the user side includes the start time of the SSB transmission, the time domain position can be determined only according to the configuration information, but the network side can send the transmission indication information subsequently. In the case that the user side receives the transmission indication information, the time domain position of the SSB transmission of the secondary serving cell can be determined according to the configuration information combined with the transmission indication information.

[0290] For mode 3, the steps of the synchronization signal block transmission time determination method comprise:

[0291] Step a1, same as step 201, that is, the network device sends configuration information to the terminal; wherein the configuration information includes the start time of the SSB transmission, and the configuration information further comprises at least one of the following: synchronization signal block (SSB) transmission period, SSB transmission time offset, and SSB transmission reference time.

[0292] Step a2, same as step 202, that is, the terminal determines the time domain position of the SSB transmission of the secondary serving cell according to the configuration information.

[0293] Step a3, same as step 302, that is, the network device sends transmission indication information to the terminal; wherein the transmission indication information is used to indicate the transmission state of the SSB.

[0294] Step a4, same as step 303, i.e., the terminal determines the time domain position of the SSB transmitted by the secondary service cell according to the configuration information and the transmission indication information.

[0295] In some embodiments, the transmission indication information indicates that the transmission state of the SSB is an active state or a transmission state.

[0296] The transmission indication information can be indicated together with the SSB configuration information, or indicated through layer 1 or layer 2 signaling, which is not limited here.

[0297] In some embodiments, the transmission indication information can indicate the transmission state of the SSB, or can indicate the configuration index of the SSB (for example, the network side configures SSB index 1: the period is equal to 40, and the time offset (for example, the offset value) is equal to 1; index 2: the period is equal to 80, and the offset value is equal to 2). For example, the transmission indication information can indicate an index value, and the user side determines the period and time offset of the SSB according to the index value. For example, the transmission indication information can indicate 1, which indicates that the period of the SSB is 40 and the time offset is 1.

[0298] In some embodiments, the reference time of the SSB transmission includes any of the following:

[0299] The time of the reference cell is taken as the reference time;

[0300] The time of the special cell is taken as the reference time;

[0301] The time of the current secondary service cell is taken as the reference time, and the current secondary service cell is the secondary service cell currently transmitting the SSB;

[0302] The time of the special cell is taken as the reference time before synchronization, and the time of the current secondary service cell is taken as the reference time after synchronization;

[0303] The time of the reference cell is taken as the reference time before synchronization, and the time of the current secondary service cell is taken as the reference time after synchronization.

[0304] A cell group is composed of one special cell (English: Special Primary Cell, abbreviated as: Spcell) and multiple secondary service cells (English: Secondary Cell, abbreviated as: Scell). The current secondary service cell refers to the current secondary service cell, i.e., the cell transmitting the SSB (for example, the SSB transmitted on demand, i.e., on-demand SSB, which will not be described below). The reference cell refers to other secondary service cells other than the current secondary service cell.

[0305] To reduce the network side power consumption, the secondary serving cell can not send SSB, or send a traditional sparse SSB. The traditional sparse SSB sent by the network side can be called always-on SSB. The Scell sends on-demand SSB to meet the user demand for SSB in the case that the user has a demand.

[0306] In some embodiments, the start time of the SSB transmission is:

[0307] The start time of the first system frame number (SFN).

[0308] In some embodiments, the first SFN is any one of the following:

[0309] A preconfigured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0310] The N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0311] In the embodiments of the present disclosure, the first SFN is the SFN of SFN=0. Wherein, the SFN is from 0.

[0312] Wherein, the start time of the SSB transmission configured by the network side can be the first system frame number (SFN), can also be a preconfigured SFN number, and can also be the N3th SFN after receiving the transmission indication information, which is not limited here.

[0313] In some embodiments, the time offset of the SSB transmission includes at least one of the following:

[0314] The time offset of the secondary serving cell and the special cell;

[0315] The time offset of the secondary serving cell and the reference cell;

[0316] The SSB time offset of the secondary serving cell.

[0317] In some embodiments, the unit of the time offset of the SSB transmission is any one of the following:

[0318] Millisecond level;

[0319] Slot level;

[0320] Symbol level.

[0321] The granularity of the time offset (e.g., offset value) of the SSB transmission configured by the network side can be SFN level and / or subframe level and / or millisecond (ms) level and / or slot level and / or symbol level.

[0322] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of:

[0323] a first time offset of the SSB of the secondary serving cell to a cell-defined SSB;

[0324] a second time offset of the SSB of the secondary serving cell to an always-on SSB;

[0325] a time offset of an occurrence of the SSB with the secondary serving cell as a time reference;

[0326] a time offset of an occurrence of the SSB with a special cell as a time reference;

[0327] a time offset of an occurrence of the SSB with a reference cell as a time reference.

[0328] The cell-defined SSB (CD-SSB for short) is specific to a certain cell and can include some information related to the configuration of the cell.

[0329] The SSB time offset of the secondary serving cell can be a time offset or a time offset. The time offset here can be a time offset of the SSB of the secondary serving cell to the CD-SSB (e.g., a first time offset), a time offset of the SSB of the secondary serving cell to the always-on SSB (e.g., a second time offset); the time offset can be a time offset of an occurrence of the SSB with a certain cell (e.g., the secondary serving cell, the special cell, the reference cell, etc.) as a time reference.

[0330] In some embodiments, the first time offset is:

[0331] a time offset by which the transmission time of the first SSB is later than the transmission time of the first cell-defined SSB, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0332] In some embodiments, M1 is greater than or equal to 1.

[0333] Taking SSB as an example, the time offset of on-demand SSB and CD-SSB, for example, how much time later / earlier the transmission time of the first on-demand SSB is sent than the transmission time of the first CD-SSB or the transmission time of the nearest CD-SSB or the transmission time of the previous CD-SSB or the transmission time of the next CD-SSB, or how much time later / earlier the transmission time of each on-demand SSB is sent than the transmission time of the nearest CD-SSB or the transmission time of the previous CD-SSB or the transmission time of the next CD-SSB.

[0334] In some embodiments, the second time offset is:

[0335] The time offset of the transmission time of the first SSB being sent later than the transmission time of the always-transmitted SSB, or the time offset of the transmission time of the first SSB being sent earlier than the transmission time of the always-transmitted SSB;

[0336] Wherein, the always-transmitted SSB is the M2th always-transmitted SSB with SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

[0337] In some embodiments, M2 is greater than or equal to 1.

[0338] Taking SSB as an example, the time offset of on-demand SSB and always-on SSB, for example, how much time later / earlier the transmission time of the first on-demand SSB is sent than the transmission time of the first always-on SSB or the transmission time of the nearest always-on SSB or the transmission time of the previous always-on SSB or the transmission time of the next always-on SSB, or how much time later / earlier the transmission time of each on-demand SSB is sent than the transmission time of the nearest always-on SSB or the transmission time of the previous always-on SSB or the transmission time of the next always-on SSB.

[0339] In some embodiments, if the configuration information includes multiple SSB transmission periods and / or time offsets of multiple SSB transmissions; according to the configuration information and the transmission indication information, determining the time domain position of the SSB transmitted by the secondary service cell, comprising:

[0340] According to the transmission indication information, determining the SSB transmission period and / or the time offset of the SSB transmission to be used from the configuration information;

[0341] According to the SSB transmission period and / or the time offset of the SSB transmission to be used, determining the time domain position of the SSB transmitted by the secondary service cell.

[0342] Taking the SSB as an example of the on-demand SSB, if there are multiple sets of time offsets of SSB transmission and / or SSB transmission periods, the network side can pre-configure multiple sets of time offsets of SSB transmission and / or SSB transmission periods, and the user side determines the time offset of SSB transmission and / or the SSB transmission period to be used through the transmission indication information after receiving the transmission indication information, and then determines the time domain position of the on-demand SSB.

[0343] If multiple SSB transmission periods and / or multiple time offsets of SSB transmission are included in the configuration information, the SSB transmission period and / or the time offset of SSB transmission to be used can be selected from the configuration information through the transmission indication information, and then the time domain position of the SSB transmitted by the secondary service cell is determined, so as to avoid the terminal blindly searching for the SSB in the SSB period, and thus the power consumption of the terminal can be reduced.

[0344] In some embodiments, the method further comprises:

[0345] determining the start effective time of SSB transmission;

[0346] The start effective time of SSB transmission includes at least one of the following:

[0347] the start time of SSB transmission indicated by the network device;

[0348] the time of receiving the transmission indication information;

[0349] the time of waiting for the terminal to process the signal after receiving the transmission indication information;

[0350] the start time of the nearest SFN from the time of receiving the transmission indication information;

[0351] the start time of the next SFN from the time of receiving the transmission indication information;

[0352] the start time of the previous SFN from the time of receiving the transmission indication information;

[0353] the start time of the nearest always-transmitted SSB from the time of receiving the transmission indication information;

[0354] the start time of the next always-transmitted SSB from the time of receiving the transmission indication information;

[0355] the start time of the previous always-transmitted SSB from the time of receiving the transmission indication information.

[0356] The time of the terminal processing the signal can be configured by the network side.

[0357] In the embodiments of the present disclosure, in the process of determining the time domain position of the SSB transmitted by the secondary serving cell, the start effective time of the SSB transmission is determined, and then the transmission of the SSB is determined, so that the terminal can avoid blind searching for the SSB in the SSB period, and the power consumption of the terminal can be reduced.

[0358] In the embodiments of the present disclosure, the start effective time of the SSB transmission is the time of receiving the transmission indication information, which means that if the time of receiving the transmission indication information by the user side is within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the time of receiving the transmission indication information (the time domain position starts to be effective); or if the time of receiving the transmission indication information by the user side is within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the transmission time domain position of the next SSB after receiving the transmission indication information (the time domain position starts to be effective); or if the time of receiving the transmission indication information by the user side is not within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the time domain position after the time of receiving the transmission indication information.

[0359] In the embodiments of the present disclosure, the start effective time of the SSB transmission is the time of receiving the transmission indication information, which means that if the time of receiving the transmission indication information by the user side is within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the time of receiving the transmission indication information (the time domain position starts to be effective); or if the time of receiving the transmission indication information by the user side is within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the transmission time domain position of the next SSB after receiving the transmission indication information (the time domain position starts to be effective); or if the time of receiving the transmission indication information by the user side is not within the transmission time domain position of the SSB, the user side considers that the SSB starts to be transmitted from the time domain position after the time of receiving the transmission indication information.

[0360] In some embodiments, after receiving the time offset of the SSB transmission, the calculation method of the time offset of the SSB transmission includes at least one of the following:

[0361] In the case of taking the time of the special cell as the reference time, and the time offset of the SSB of the secondary serving cell is the time offset of the SSB appearing with the special cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB appearing with the special cell as the time reference;

[0362] In the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the time offset of the SSB taken as the reference time of the secondary serving cell;

[0363] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the time offset of the SSB taken as the reference time of the reference cell;

[0364] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the time offset of the SSB taken as the reference time of the secondary serving cell;

[0365] In the case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the time offset of the SSB taken as the reference time of the secondary serving cell;

[0366] In the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0367] In the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB;

[0368] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

[0369] In the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the second time offset and the time offset of the always-transmitted SSB.

[0370] In the case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

[0371] It should be noted that the time offset of the cell-defined SSB can not exist, and in the case that the time offset of the cell-defined SSB does not exist or is not indicated by the network side, the time offset of the cell-defined SSB is equal to 0. Correspondingly, in the calculation of the time offset of the SSB transmission, if the time offset of the cell-defined SSB is involved, the value is taken as 0. For example, in the case that the time offset of the cell-defined SSB does not exist or is not indicated by the network side, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB, that is, the time offset of the SSB transmission is equal to the first time offset. Other cases are similar and will not be described here. In the embodiments of the present disclosure, the calculation method of the time offset of the SSB transmission can be implemented by one or more of the above methods to determine the time offset of the SSB transmission to be used, and then the time domain position of the SSB transmission of the secondary serving cell is determined by the SSB transmission period in the configuration information, the start time and / or transmission indication information of the SSB transmission, or by the SSB transmission period in the configuration information, the reference time of the SSB transmission, and the start time and / or transmission indication information of the SSB transmission, so as to avoid the terminal blindly searching for the SSB in the SSB period, thereby reducing the power consumption of the terminal.

[0372] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further includes at least one of the following:

[0373] a frequency point and a physical cell identity (English: Physical Cell Identity, for short: PCI);

[0374] a secondary serving cell index;

[0375] a cell global identity (English: Cell Global Identity, for short: CGI).

[0376] In some embodiments, the configuration information includes at least one of the following:

[0377] information of the addition of the secondary serving cell;

[0378] information of the SSB configuration of the secondary serving cell;

[0379] information of the measurement object configuration.

[0380] The measurement object (English: Measurement Object, for short: MO) is a name defined in the protocol for configuring measurement, and the time offset, period, etc. of the on-demand SSB can also be configured here.

[0381] The determination method of the synchronization signal block transmission time is described in detail through exemplary embodiments.

[0382] The following embodiments take SSB as an example of on-demand SSB, but the implementation process is not limited to on-demand SSB, nor is it limited here.

[0383] Example 1: on-demand SSB time domain location with Spcell time as reference

[0384] 1) Step 1, network side configures on-demand SSB time domain location, including but not limited to one or more of the following:

[0385] a) SSB transmission period (e.g. transmission period of secondary service cell on-demand SSB).

[0386] b) Time offset of SSB transmission. In some embodiments, the time offset of SSB transmission includes but is not limited to one or more of the following: time offset of secondary service cell and special cell, time offset of secondary service cell and reference cell, SSB time offset of secondary service cell. In some embodiments, the SSB time offset of the secondary service cell includes but is not limited to one or more of the following: first time offset of SSB of the secondary service cell and CD-SSB, second time offset of SSB of the secondary service cell and always-on SSB, time offset of SSB occurrence with the secondary service cell as the time reference, time offset of SSB occurrence with the special cell as the time reference, time offset of SSB occurrence with the reference cell as the time reference.

[0387] c) Reference time of SSB transmission. In some embodiments, the reference time of SSB transmission includes but is not limited to one or more of the following: reference time with the time of the reference cell as the reference time, reference time with the time of the special cell as the reference time, reference time with the time of the current secondary service cell as the reference time, the current secondary service cell being the secondary service cell currently transmitting SSB, reference time with the time of the special cell as the reference time before synchronization and the time of the current secondary service cell as the reference time after synchronization, reference time with the time of the reference cell as the reference time before synchronization and the time of the current secondary service cell as the reference time after synchronization.

[0388] d) Start time of SSB transmission. The start time of SSB transmission includes but is not limited to one or more of the following: pre-configured SFN number, where SFN is equal to N4, and N4 is greater than or equal to 0; N3th SFN after receiving the transmission indication information sent by the network device, where N3 is configured by the network device.

[0389] Wherein the granularity of the time offset of SSB transmission can be SFN level and / or subframe level and / or ms level and / or slot level and / or symbol level.

[0390] In some embodiments, the time offset of on-demand SSB (e.g., the offset value of on-demand SSB transmission, which will not be described below) can be configured when the serving cell is added, for example, R19-offset is configured in ScellConfig (i.e., serving cell configuration), which is denoted as the time offset of on-demand SSB. R19-smtc can also be configured in ScellConfig, which is parallel to smtc in legacy, and implicitly indicates the time offset of on-demand SSB. The time offset of on-demand SSB (e.g., the time offset of on-demand SSB transmission, which will not be described below) can be configured in the configuration of on-demand SSB. The user receives the configuration of on-demand SSB to receive the related period, time offset, etc. configuration, for example, the configuration of offset, periodicity, etc. is denoted as the time offset, period, etc. of on-demand SSB, or smtc is configured, which implicitly indicates the period, time offset, etc. of on-demand SSB. The time offset of on-demand SSB can be configured in the measurement object configuration, for example, on-demand SSB smtc is indicated in MO, which indicates the time offset, period, etc. of on-demand SSB transmission of all on-demand SSB cells in the MO.

[0391] In some embodiments, the network side can configure one or more sets of the above SSB configurations. When different on-demand SSBs are activated, the corresponding index number is indicated, and the user side determines the SSB configuration according to the index number. For example, the network side configures two sets of SSB configurations, the SSB period of configuration 1 is 40 ms, and the time offset is 2. The SSB period of configuration 2 is 80 ms, and the time offset is 2. If the network side indicates index 2 by transmitting the indication information, the user side determines that the transmission period of SSB is 80 ms, and the time offset is 2.

[0392] In some embodiments, the transmission period of on-demand SSB can be consistent with the transmission period of always-transmitted SSB or cell-defined SSB or traditional SSB. If the network side does not configure the transmission period of on-demand SSB, the user can consider that the transmission period of on-demand SSB is consistent with the transmission period of always-transmitted SSB or cell-defined SSB or traditional SSB.

[0393] 2) Step 2, UE receives network side configuration, if the network side configuration configures the transmission state of on-demand SSB as transmission or active, if there is no reference time configured for SSB transmission, or the reference time is configured as "special cell time", or the protocol is predefined that UE determines the time domain position of on-demand SSB with reference to the time of SPCell (herein referred to as the time of SPCell). UE determines the time domain position of on-demand SSB with reference to the timing of SPCell of the current secondary serving cell related cell group based on the received network side configuration. After receiving the network side configuration (RRC message and / or L1 / L2 signaling), the method for UE to determine the time domain position of on-demand SSB includes but is not limited to the following two ways:

[0394] a) Way 2-1: the transmission time domain position of on-demand SSB (herein referred to as the transmission time domain position of on-demand SSB) is determined as follows:

[0395] SFN mod T = (FLOOR(Offset / 10));

[0396] if the Periodicity is larger than sf5:

[0397] subframe = Offset mod 10;

[0398] else:

[0399] subframe = Offset or (Offset+5);

[0400] with T = CEIL(Periodicity / 10).

[0401] Wherein SFN refers to the SFN of SPCell, UE determines the time domain position of on-demand SSB with reference to the timing of SPCell of the current secondary serving cell related cell group, Periodicity is the period of on-demand SSB, and Offset is the time offset (herein referred to as the time offset of on-demand SSB transmission, which will not be described below). The time offset is equal to at least one of the following:

[0402] If the network side configures "time offset of SSB occurrence with special cell as time reference", then Offset is equal to the value (i.e. "time offset of SSB occurrence with special cell as time reference");

[0403] If the network side configures the "time offset of secondary serving cell and special cell" and "time offset of SSB occurrence with secondary serving cell as time reference", then Offset is equal to the sum of the two values (i.e. "time offset of secondary serving cell and special cell" and "time offset of SSB occurrence with secondary serving cell as time reference").

[0404] If the network side configures the "second time offset of SSB of secondary serving cell and always transmitted SSB", and the always transmitted SSB is with the time of special cell as reference time, then Offset is equal to the sum of the second time offset and the time offset of always transmitted SSB.

[0405] If the network side configures the "time offset of secondary serving cell and special cell" and "second time offset of SSB of secondary serving cell and always transmitted SSB", and the always transmitted SSB is with the time of secondary serving cell as reference, then the time offset is equal to the sum of the two time offsets (i.e. "time offset of secondary serving cell and special cell" and "second time offset") and the time offset of always transmitted SSB.

[0406] If the network side configures the "first time offset of SSB of secondary serving cell and cell defined SSB", and the cell defined SSB is with the time of special cell as reference, then Offset is equal to the first time offset.

[0407] If the network side configures the "time offset of secondary serving cell and special cell" and "first time offset of SSB of secondary serving cell and cell defined SSB", and the cell defined SSB is with the time of secondary serving cell as reference, then the time offset is equal to the sum of the two time offsets (i.e. "time offset of secondary serving cell and special cell" and "first time offset").

[0408] Wherein, the time offset of always transmitted SSB refers to the time interval after the first symbol of SFN=0 after which the always transmitted SSB is transmitted, or refers to the time interval after which the always transmitted SSB is transmitted later than the CD-SSB or traditional SSB sent after the first symbol of SFN=0, or other protocol defined time offset size of always transmitted SSB, which is not limited in this patent.

[0409] The time-domain position of the on-demand SSB can be calculated according to the above formula. However, the starting transmission time (the starting effective time of transmission) of the on-demand SSB can be the starting time-domain position of SFN=0; or the starting time-domain position of SFN at the time when the user receives the transmission indication information (RRC message or L1 or L2 signaling); or the starting time-domain position of SFN closest to the time when the user receives the transmission indication information (RRC message or L1 or L2 signaling); or the starting time-domain position of the SFN one before the time when the user receives the transmission indication information (RRC message or L1 or L2 signaling); or the starting time-domain position of the SFN one after the time when the user receives the transmission indication information (RRC message or L1 or L2 signaling); or the starting time-domain position of a certain SFN number indicated or predefined from the network side.

[0410] In some embodiments, if the network side configures the starting time of SSB transmission, the user starts transmission from the starting time-domain position of the starting transmission time of SSB indicated by the network side, for example, the network side configures SSB to take effect from SFN=9, and the user considers that SSB starts transmission from the first symbol of SFN=9.

[0411] In some embodiments, if the time when the user receives the transmission indication information is within the time-domain position of the on-demand SSB, the user considers that the on-demand SSB starts transmission from the time when the transmission indication information is received; or the user considers that the on-demand SSB starts transmission from the time-domain position after a certain time interval after the time when the transmission indication information is received, for example, the time offset of the terminal processing signal; or the user considers that the on-demand SSB starts transmission from the transmission time-domain position of the next on-demand SSB.

[0412] In some embodiments, the starting transmission time (the starting effective time of transmission) of the on-demand SSB can be the starting transmission time of the conventional SSB or the cell-defined SSB or the always-transmitted SSB closest to the time when the transmission indication information is received; or the starting transmission time of the conventional SSB or the cell-defined SSB or the always-transmitted SSB one after the time when the transmission indication information is received; or the starting transmission time of the conventional SSB or the cell-defined SSB or the always-transmitted SSB one before the time when the transmission indication information is received.

[0413] The user side considers that the on-demand SSB starts to transmit from the SSB transmission time domain position after the start effective time (start transmission time). The user side considers that the on-demand SSB stops transmitting after the on-demand SSB starts to transmit until the transmission times of the SSB burst are reached, or the network side indicates that the on-demand SSB stops transmitting, or other on-demand SSB stop transmitting conditions are met.

[0414] b) Mode 2-2: The transmission time domain position of the on-demand SSB is determined in the following way:

[0415] (SFN-N) mod T = (FLOOR(Offset / 10));

[0416] if the Periodicity is larger than sf5:

[0417] subframe = Offset mod 10;

[0418] else:

[0419] subframe = Offset or (Offset+5);

[0420] with T = CEIL(Periodicity / 10).

[0421] If the SSB starts to transmit from SFN = N, the user can calculate the time domain position of the SSB by using the above formula.

[0422] The rest is the same as mode 1-1, which is not repeated here.

[0423] Example 2: On-demand SSB time domain position with the time of the SpCell as the reference time and with the time of the current secondary serving cell as the reference time

[0424] 1) Step 1, the same as step 1 in example 1.

[0425] 2) Step 2, before the user side and the secondary serving cell are synchronized, the same as step 2 in example 1.

[0426] 3) Step 3, if the "Reference time for SSB transmission" is not configured or is configured as "Before synchronization, the time of the special cell is used as the reference, and after synchronization, the time of the current secondary serving cell is used as the reference". In some embodiments, the protocol is predefined for the user side to determine the time-domain position of the on-demand SSB with the time of the current secondary serving cell as the reference time. After the user and the secondary serving cell are synchronized, the user receives the on-demand SSB transmission indication, and the user determines the time-domain position of the on-demand SSB with the timing of the current secondary serving cell as the reference. After receiving the transmission indication of the on-demand SSB, the user determines the time-domain position of the on-demand SSB in a manner similar to the various methods of step 2) of embodiment 1, but the SFN refers to the SFN of the current secondary serving cell, the user uses the timing of the current secondary serving cell as the reference, and the time offset offset is equal to at least one of the following:

[0427] If the network side configures the "Time offset of SSB occurrence with the secondary serving cell as the time reference", then offset is equal to this value (i.e., the time offset of SSB occurrence with the secondary serving cell as the time reference);

[0428] If the network side configures the "Second time offset of SSB of the secondary serving cell and always-transmitted SSB", and the always-transmitted SSB is referenced with the time of the secondary serving cell, then offset is equal to the sum of this time offset (i.e., the second time offset) and the time offset of the always-transmitted SSB.

[0429] If the network side configures the "First time offset of SSB of the secondary serving cell and cell-defined SSB", and the cell-defined SSB is referenced with the time of the secondary serving cell, then offset is equal to this time offset (i.e., the first time offset).

[0430] Example, embodiment 3: On-demand SSB time-domain position with reference cell time as reference time

[0431] 1) Step 1, same as step 1 in embodiment 1.

[0432] 2) Step 2, UE receives network side configuration, if the network side configuration is "reference time is the time of reference cell", or the protocol predefines that the timing of user cell x is the reference to determine the time domain position of on-demand SSB. Then the user takes the timing of reference cell x as the reference, and determines the time domain position of on-demand SSB based on the received on-demand SSB transmission period and / or duration and / or time offset. The method of determining the time domain position of on-demand SSB by the user is similar to the various methods of embodiment 1 step 2), but SFN refers to the SFN of the reference cell, the user takes the timing of reference cell x as the reference, and the time offset offset is equal to at least one of the following:

[0433] If the network side configures "time offset of SSB occurrence with reference to reference cell", then Offset is equal to this value (i.e. "time offset of SSB occurrence with reference to reference cell");

[0434] If the network side configures "time offset of secondary serving cell and reference cell" and "time offset of SSB occurrence with reference to secondary serving cell", then Offset is equal to the sum of the two values (i.e. "time offset of secondary serving cell and reference cell" and "time offset of SSB occurrence with reference to secondary serving cell").

[0435] If the network side configures "second time offset of SSB of secondary serving cell and always transmitted SSB", and the always transmitted SSB is with reference to the time of reference cell, then Offset is equal to the sum of this time offset (i.e. second time offset) and the time offset of always transmitted SSB.

[0436] If the network side configures "time offset of secondary serving cell and reference cell" and "second time offset of SSB of secondary serving cell and always transmitted SSB", and the always transmitted SSB is with reference to the time of secondary serving cell, then the time offset is equal to the sum of the two time offsets (i.e. "time offset of secondary serving cell and reference cell" and "second time offset") and the time offset of always transmitted SSB.

[0437] If the network side configures "first time offset difference of SSB of secondary serving cell and cell defined SSB", and the cell defined SSB is with reference to the time of reference cell, then Offset is equal to this time offset (i.e. first time offset).

[0438] If the network side configures both "time offset of secondary serving cell and reference cell" and "first time offset difference of SSB of secondary serving cell and SSB defined by the cell", and the SSB defined by the cell is referenced to the time of the secondary serving cell, the time offset equals the sum of the two time offsets (i.e. "time offset of secondary serving cell and reference cell" and "first time offset").

[0439] Example 4: On-demand SSB time domain location with reference time as the time of the reference cell and with reference time as the time of the current secondary serving cell

[0440] 1) Step 1, same as step 1 in example 1.

[0441] 2) Step 2, before the user side and the secondary serving cell are synchronized, same as step 2 in example 3.

[0442] 3) Step 3, after the user side and the secondary serving cell are synchronized, if configured as "reference time as the time of the reference cell before synchronization and reference time as the time of the current secondary serving cell after synchronization" or the protocol is predetermined to determine the on-demand SSB time domain location for the user side with reference time as the time of the current secondary serving cell. After the user side receives the on-demand SSB transmission indication, the user side determines the on-demand SSB time domain location with reference to the timing of the current secondary serving cell. The method for the user side to determine the on-demand SSB time domain location is similar to each method in step 3 of example 2, and the time offset offset equals at least one of the following:

[0443] If the network side configures "time offset of SSB occurrence with reference cell as time reference", then Offset equals the value;

[0444] If the network side configures both "time offset of secondary serving cell and reference cell" and "time offset of SSB occurrence with secondary serving cell as time reference", then Offset equals the sum of the two values.

[0445] If the network side configures "second time offset of SSB of secondary serving cell and always transmitted SSB", and the always transmitted SSB is referenced to the time of the reference cell, then Offset equals the sum of the time offset (i.e. second time offset) and the time offset of the always transmitted SSB.

[0446] If the network side configures the time offset between the secondary serving cell and the reference cell and the second time offset between the SSB of the secondary serving cell and the always-transmitted SSB, and the always-transmitted SSB is referenced to the time of the secondary serving cell, the time offset is equal to the sum of the two time offsets (i.e., the time offset between the secondary serving cell and the reference cell and the second time offset) and the time offset of the always-transmitted SSB.

[0447] If the network side configures the first time offset between the SSB of the secondary serving cell and the cell-defined SSB, and the cell-defined SSB is referenced to the time of the reference cell, the Offset is equal to the time offset (i.e., the first time offset).

[0448] If the network side configures the time offset between the secondary serving cell and the reference cell and the first time offset between the SSB of the secondary serving cell and the cell-defined SSB, and the cell-defined SSB is referenced to the time of the secondary serving cell, the time offset is equal to the sum of the two time offsets (i.e., the time offset between the secondary serving cell and the reference cell and the first time offset).

[0449] Therefore, in the present disclosure, the terminal (e.g., the user side) can determine the accurate time of on-demand SSB transmission according to the configuration information and the transmission indication information of the network side (i.e., the network device), prevent the user side from blindly searching for SSBs in on-demand SSBs, reduce the power consumption of the user side, and measure on-demand SSBs for time-frequency synchronization and / or L1 / L3 measurement.

[0450] It should be noted that the method for determining the transmission time of the synchronization signal block provided by the present disclosure takes the terminal (e.g., UE, etc.) as the execution subject, and the implementation process can refer to the embodiments shown in FIGS. 1-3 and Embodiments 1-4, which will not be described in detail here.

[0451] Referring to FIG. 4, FIG. 4 is a flowchart of a method for determining the transmission time of a synchronization signal block according to another embodiment of the present disclosure. The execution subject of the method for determining the transmission time of the synchronization signal block provided by the present embodiment is a network device, and the method for determining the transmission time of the synchronization signal block will be described in detail below.

[0452] The method for determining the transmission time of the synchronization signal block provided by the present embodiment includes the following steps:

[0453] Step 401: sending configuration information including the start time of SSB transmission to the terminal, and / or sending configuration information and transmission indication information to the terminal, the transmission indication information being used to indicate the SSB transmission state.

[0454] The configuration information includes at least one of: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

[0455] The configuration information is used to determine a time domain position of SSB transmission of the secondary serving cell.

[0456] In the embodiments of the present disclosure, the network device can send the terminal configuration information including the start time of SSB transmission, and / or the configuration information and the transmission indication information, so that the terminal can effectively determine the time domain position of SSB transmission of the secondary serving cell through the configuration information, and / or the configuration information combined with the transmission indication information, thereby avoiding the terminal blindly searching for SSB in the SSB period, and further reducing the power consumption of the terminal.

[0457] In some embodiments, the reference time of SSB transmission includes any one of:

[0458] The time of the reference cell is used as the reference time.

[0459] The time of the special cell is used as the reference time.

[0460] The time of the current secondary serving cell is used as the reference time, and the current secondary serving cell is the secondary serving cell currently sending SSB.

[0461] The time of the special cell is used as the reference time before synchronization, and the time of the current secondary serving cell is used as the reference time after synchronization.

[0462] The time of the reference cell is used as the reference time before synchronization, and the time of the current secondary serving cell is used as the reference time after synchronization.

[0463] In some embodiments, the start time of SSB transmission is:

[0464] The start time of the first system frame number (SFN).

[0465] In some embodiments, the time offset of SSB transmission includes at least one of:

[0466] The time offset of the secondary serving cell and the special cell.

[0467] The time offset of the secondary serving cell and the reference cell.

[0468] The SSB time offset of the secondary serving cell.

[0469] In some embodiments, the time offset of the SSB transmission is in units of any one of the following:

[0470] millisecond level;

[0471] slot level;

[0472] symbol level.

[0473] In some embodiments, the time offset of the SSB of the secondary serving cell comprises at least one of the following:

[0474] a first time offset difference between the SSB of the secondary serving cell and the SSB defined by the cell;

[0475] a second time offset between the SSB of the secondary serving cell and the SSB always transmitted;

[0476] a time offset of the occurrence of the SSB with the secondary serving cell as a time reference;

[0477] a time offset of the occurrence of the SSB with a special cell as a time reference;

[0478] a time offset of the occurrence of the SSB with a reference cell as a time reference.

[0479] In some embodiments, the first time offset is:

[0480] a time offset by which the transmission time of the first SSB is later than the transmission time of the first cell-defined SSB, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is the M1th cell-defined SSB with SFN equal to N1, and both N1 and M1 are greater than or equal to 0 and are integers.

[0481] In some embodiments, the second time offset is:

[0482] a time offset by which the transmission time of the first SSB is later than the transmission time of the always-transmitted SSB, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the always-transmitted SSB; wherein the always-transmitted SSB is the M2th always-transmitted SSB with SFN equal to N2, and both N2 and M2 are greater than or equal to 0 and are integers.

[0483] In some embodiments, if the time of the reference cell is taken as a reference time, the configuration information further comprises at least one of the following:

[0484] a frequency point and a physical cell identifier (PCI);

[0485] a secondary serving cell index;

[0486] a cell global identifier (CGI).

[0487] In some embodiments, the first SFN is any one of the following:

[0488] a preconfigured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0489] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0490] In some embodiments, the configuration information includes at least one of the following:

[0491] information of secondary service cell addition;

[0492] information of SSB configuration of the secondary service cell;

[0493] information of measurement object configuration.

[0494] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0495] It should be noted that the method for determining the synchronization signal block transmission time provided by the network device as the execution subject can refer to the implementation process of the embodiments shown in FIGS. 2-4, embodiments 1-4, and the implementation process will not be described here.

[0496] Based on the same technical concept, the present embodiment also provides a synchronization signal block transmission time determination apparatus, which can realize the functions of the terminal in the foregoing embodiments.

[0497] Referring to FIG. 5, FIG. 5 is a structural schematic diagram of a synchronization signal block transmission time determination apparatus provided by an embodiment of the present disclosure. As shown in FIG. 5, the synchronization signal block transmission time determination apparatus provided by the present embodiment is applied to a terminal, and the synchronization signal block transmission time determination apparatus provided by the present embodiment includes a transceiver 500, which is used to receive and send data under the control of a processor 510.

[0498] In FIG. 5, the bus architecture can include any number of interconnected buses and bridges, which are represented by the processor 510 and the various circuits of the memory 520 linked together by the bus architecture. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art and thus, are not further described herein. The bus interface provides an interface. The transceiver 500 can be a plurality of elements, i.e., including a transmitter and a receiver, which provide a means for communicating with various other apparatus over a transmission medium, including a wireless channel, a wired channel, optical cable, and the like. The user interface 530 can also be an interface capable of coupling an external device to the apparatus for needs, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

[0499] The processor 510 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 510 in performing operations.

[0500] In some embodiments, the processor 510 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0501] The processor executes any method provided by the embodiments of the present disclosure by calling a program stored in the memory according to obtained executable instructions. The processor and the memory can also be physically arranged separately.

[0502] In the embodiment, the apparatus includes: a memory 520 configured to store a computer program; a transceiver 500 configured to transceive data under control of a processor; and the processor 510 configured to read the computer program in the memory and perform the following operations:

[0503] receive configuration information sent by a network device, the configuration information including at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission;

[0504] In a case that the start time of the SSB transmission is included in the configuration information, a time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information; and / or, the time domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information and the transmission indication information, the transmission indication information being used to indicate a transmission state of the SSB.

[0505] In some embodiments, the reference time of the SSB transmission comprises any one of the following:

[0506] a time of a reference cell as the reference time;

[0507] a time of a special cell as the reference time;

[0508] a time of a current secondary serving cell as the reference time, the current secondary serving cell being a secondary serving cell currently transmitting the SSB;

[0509] a time of a special cell as the reference time before synchronization, and a time of a current secondary serving cell as the reference time after synchronization;

[0510] a time of a reference cell as the reference time before synchronization, and a time of a current secondary serving cell as the reference time after synchronization.

[0511] In some embodiments, the start time of the SSB transmission is:

[0512] a start time of a first system frame number (SFN).

[0513] In some embodiments, the time offset of the SSB transmission comprises at least one of the following:

[0514] a time offset of the secondary serving cell and a special cell;

[0515] a time offset of the secondary serving cell and a reference cell;

[0516] an SSB time offset of the secondary serving cell.

[0517] In some embodiments, a unit of the time offset of the SSB transmission is any one of the following:

[0518] a millisecond level;

[0519] a slot level;

[0520] a symbol level.

[0521] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of the following:

[0522] a first time offset difference between an SSB of the secondary serving cell and a cell-defined SSB;

[0523] a second time offset of the SSB of the secondary serving cell from the always-transmitted SSB;

[0524] a time offset of the occurrence of the SSB with the secondary cell as a time reference;

[0525] a time offset of the occurrence of the SSB with the special cell as a time reference;

[0526] a time offset of the occurrence of the SSB with the reference cell as a time reference.

[0527] In some embodiments, the first time offset is:

[0528] a time offset by which the transmission time of the first SSB is later than the transmission time of the first cell-defined SSB, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with SFN equal to N1, and both N1 and M1 are greater than or equal to 0 and are integers.

[0529] In some embodiments, the second time offset is:

[0530] a time offset by which the transmission time of the first SSB is later than the transmission time of the always-transmitted SSB, or a time offset by which the transmission time of the first SSB is earlier than the transmission time of the always-transmitted SSB;

[0531] wherein the always-transmitted SSB is an M2th always-transmitted SSB with SFN equal to N2, and both N2 and M2 are greater than or equal to 0 and are integers.

[0532] In some embodiments, if the configuration information includes multiple SSB transmission periods and / or multiple time offsets of SSB transmission, the processor 510 is configured to, in a case where the time-domain position of the SSB transmitted by the secondary serving cell is determined according to the configuration information and the transmission indication information:

[0533] determine, according to the transmission indication information, the SSB transmission period and / or the time offset of SSB transmission to be used from the configuration information;

[0534] determine the time-domain position of the SSB transmitted by the secondary serving cell according to the SSB transmission period and / or the time offset of SSB transmission to be used.

[0535] In some embodiments, the processor is further configured to perform the following operations:

[0536] determine a start effective time of the SSB transmission;

[0537] wherein the start effective time of the SSB transmission includes at least one of the following:

[0538] a start time of the SSB transmission indicated by the network device;

[0539] a time when the transmission indication information is received;

[0540] a time when the terminal waits for processing the signal after receiving the transmission indication information;

[0541] a start time of the SFN closest to the time when the transmission indication information is received;

[0542] a start time of the SFN next to the time when the transmission indication information is received;

[0543] a start time of the SFN previous to the time when the transmission indication information is received;

[0544] a start time of the SSB that is always transmitted closest to the time when the transmission indication information is received;

[0545] a start time of the SSB that is always transmitted next to the time when the transmission indication information is received;

[0546] a start time of the SSB that is always transmitted previous to the time when the transmission indication information is received.

[0547] In some embodiments, after receiving the time offset of the SSB transmission, the time offset of the SSB transmission is calculated in the following at least one way:

[0548] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the special cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the special cell as the time reference;

[0549] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0550] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the reference cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the reference cell as the time reference;

[0551] In a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0552] In a case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0553] In a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0554] In a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB;

[0555] In a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0556] In a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0557] In a case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to a sum of the second time offset and the time offset of the always-transmitted SSB.

[0558] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0559] a frequency point and a physical cell identifier (PCI);

[0560] a secondary serving cell index;

[0561] a cell global identifier (CGI).

[0562] In some embodiments, the first SFN is any one of the following:

[0563] a preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0564] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0565] In some embodiments, the configuration information is included in at least one of the following:

[0566] information of addition of the secondary serving cell;

[0567] information of SSB configuration of the secondary serving cell;

[0568] information of measurement object configuration.

[0569] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0570] It should be noted that the synchronization signal block transmission time determination apparatus provided by the present disclosure can implement all the method steps implemented by the terminal in the synchronization signal block transmission time determination method embodiment, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described here.

[0571] Based on the same technical concept, the present disclosure also provides a synchronization signal block transmission time determination apparatus, which can implement the functions of the terminal in the foregoing embodiments.

[0572] Referring to FIG. 6, FIG. 6 is a structural schematic diagram of a synchronization signal block transmission time determination apparatus provided by an embodiment of the present disclosure. As shown in FIG. 6, the synchronization signal block transmission time determination apparatus provided by the present embodiment is applied to a terminal, and the synchronization signal block transmission time determination apparatus 600 comprises a receiving unit 601 and a processing unit 602.

[0573] The receiving unit 601 is configured to receive configuration information sent by a network device, wherein the configuration information comprises at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

[0574] The processing unit 602 is configured to, in the case where the configuration information comprises the start time of SSB transmission, determine a time domain position of SSB transmission of a secondary serving cell according to the configuration information; and / or, determine the time domain position of SSB transmission of the secondary serving cell according to the configuration information and transmission indication information, wherein the transmission indication information is used to indicate a transmission state of the SSB.

[0575] In some embodiments, the reference time of SSB transmission comprises any one of the following:

[0576] The time of a reference cell is used as the reference time;

[0577] The time of a special cell is used as the reference time;

[0578] The time of a current secondary serving cell is used as the reference time, wherein the current secondary serving cell is a secondary serving cell currently sending the SSB;

[0579] The time of a special cell is used as the reference time before synchronization, and the time of a current secondary serving cell is used as the reference time after synchronization;

[0580] The time of a reference cell is used as the reference time before synchronization, and the time of a current secondary serving cell is used as the reference time after synchronization.

[0581] In some embodiments, the starting time of the SSB transmission is:

[0582] the starting time of a first system frame number (SFN).

[0583] In some embodiments, the time offset of the SSB transmission comprises at least one of:

[0584] a time offset of the secondary serving cell and the special cell;

[0585] a time offset of the secondary serving cell and the reference cell;

[0586] a SSB time offset of the secondary serving cell.

[0587] In some embodiments, the time offset of the SSB transmission is in units of any one of:

[0588] a millisecond level;

[0589] a slot level;

[0590] a symbol level.

[0591] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of:

[0592] a first time offset difference of the SSB of the secondary serving cell and the SSB defined by the cell;

[0593] a second time offset of the SSB of the secondary serving cell and the SSB always transmitted;

[0594] a time offset of the SSB occurrence with the secondary serving cell as a time reference;

[0595] a time offset of the SSB occurrence with the special cell as a time reference;

[0596] a time offset of the SSB occurrence with the reference cell as a time reference.

[0597] In some embodiments, the first time offset is:

[0598] a time offset of a transmission time of a first SSB later than a transmission time of a first cell-defined SSB, or a time offset of the transmission time of the first SSB earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with an SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0599] In some embodiments, the second time offset is:

[0600] The transmission time of the first SSB is sent with a time offset later than the transmission time of the always-transmitted SSB, or the transmission time of the first SSB is sent with a time offset earlier than the transmission time of the always-transmitted SSB.

[0601] The always-transmitted SSB is the M2th always-transmitted SSB with SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

[0602] In some embodiments, if the configuration information includes a plurality of SSB transmission periods and / or a plurality of time offsets of SSB transmission, the processing unit 602 is configured to:

[0603] According to the transmission indication information, determine the SSB transmission period and / or the time offset of SSB transmission to be used from the configuration information.

[0604] According to the SSB transmission period and / or the time offset of SSB transmission to be used, determine the time domain position of the SSB transmitted by the secondary service cell.

[0605] In some embodiments, the method further includes:

[0606] Determine the start effective time of SSB transmission.

[0607] The start effective time of SSB transmission includes at least one of the following:

[0608] The start time of SSB transmission indicated by the network device;

[0609] The time when the transmission indication information is received;

[0610] The time of waiting for the terminal to process the signal after receiving the transmission indication information;

[0611] The start time of the SFN closest to the time when the transmission indication information is received;

[0612] The start time of the SFN after the time when the transmission indication information is received;

[0613] The start time of the SFN before the time when the transmission indication information is received;

[0614] The start time of the always-transmitted SSB closest to the time when the transmission indication information is received;

[0615] The start time of the always-transmitted SSB after the time when the transmission indication information is received;

[0616] The start time of the always-transmitted SSB before the time when the transmission indication information is received.

[0617] In some embodiments, the time offset of the SSB transmission is calculated in a manner comprising at least one of the following after receiving the time offset of the SSB transmission:

[0618] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the special cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the special cell as the time reference;

[0619] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0620] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the reference cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the reference cell as the time reference;

[0621] In a case where the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0622] In a case where the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0623] In a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case where the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB;

[0624] In the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell, the first time offset, and the time offset of the cell-defined SSB; or in the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell, the second time offset, and the time offset of the always-transmitted SSB.

[0625] In the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

[0626] In the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in the case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB.

[0627] In the case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the secondary serving cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

[0628] In some embodiments, if a time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0629] a frequency point and a physical cell identifier (PCI);

[0630] an index of the secondary serving cell;

[0631] a cell global identifier (CGI).

[0632] In some embodiments, the first SFN is any one of the following:

[0633] a preconfigured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0634] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0635] In some embodiments, the configuration information comprises at least one of the following:

[0636] information of addition of the secondary serving cell;

[0637] information of SSB configuration of the secondary serving cell;

[0638] information of measurement object configuration.

[0639] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0640] It should be noted that the synchronization signal block transmission time determination apparatus provided by the present disclosure can realize all the method steps realized by the terminal in the above-mentioned synchronization signal block transmission time determination method embodiment, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described here.

[0641] Based on the same technical concept, the present disclosure further provides a synchronization signal block transmission time determination apparatus, which can realize the functions of the network device in the above-mentioned embodiments.

[0642] Referring to FIG. 7, FIG. 7 is a structural schematic diagram of a synchronization signal block transmission time determination apparatus provided by an embodiment of the present disclosure. As shown in FIG. 7, the synchronization signal block transmission time determination apparatus provided by the present embodiment is applied to a network device, and the synchronization signal block transmission time determination apparatus provided by the present embodiment comprises a transceiver 700, which is used to receive and send data under the control of a processor 710.

[0643] In FIG. 7, the bus architecture can include any number of interconnecting buses and bridges, depending on the bus architecture supported by the processor 710 and the memory 720 that are linked together by the various circuits of the bus architecture, which can include a processor 710 and a memory 720. The bus architecture can also link various other circuits such as peripheral devices, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be further described herein. The bus interface provides an interface. The transceiver 700 can be a plurality of elements, i.e., including a transmitter and a receiver, which provides a unit for communicating with various other devices on transmission media, including wireless channels, wired channels, optical cables, and the like. The processor 710 is responsible for managing the bus architecture and general processing, and the memory 720 can store data used by the processor 710 in performing operations.

[0644] The processor 710 can be a central processing unit (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (CPLD), and the processor can also adopt a multi-core architecture.

[0645] In this embodiment, the device includes a memory 720, a transceiver 700, and a processor 710:

[0646] The memory 720 is configured to store a computer program, the transceiver 700 is configured to transceive data under the control of the processor, and the processor 710 is configured to read the computer program in the memory and perform the following operations:

[0647] The configuration information and the transmission indication information are sent to the terminal, and the transmission indication information is used to indicate the SSB transmission state; wherein, the configuration information is used to determine the time domain position of the SSB transmission of the secondary service cell based on the transmission indication information; and / or,

[0648] The configuration information including the start time of the SSB transmission is sent to the terminal, wherein the configuration information is used to determine the time domain position of the SSB transmission of the secondary service cell;

[0649] The configuration information includes at least one of the following: synchronization signal block (SSB) transmission period, time offset of SSB transmission, reference time of SSB transmission, and start time of SSB transmission.

[0650] In some embodiments, the reference time of the SSB transmission includes any one of the following:

[0651] The time of the reference cell is taken as the reference time;

[0652] with the time of the special cell as the reference time;

[0653] with the time of the current secondary serving cell as the reference time, the current secondary serving cell being the secondary serving cell from which the SSB is currently transmitted;

[0654] with the time of the special cell as the reference time before synchronization, and with the time of the current secondary serving cell as the reference time after synchronization;

[0655] with the time of the reference cell as the reference time before synchronization, and with the time of the current secondary serving cell as the reference time after synchronization.

[0656] In some embodiments, the start time of the SSB transmission is:

[0657] the start time of the first SFN.

[0658] In some embodiments, the time offset of the SSB transmission comprises at least one of:

[0659] a time offset of the secondary serving cell and the special cell;

[0660] a time offset of the secondary serving cell and the reference cell;

[0661] a SSB time offset of the secondary serving cell.

[0662] In some embodiments, the time offset of the SSB transmission is in units of any one of:

[0663] a millisecond level;

[0664] a slot level;

[0665] a symbol level.

[0666] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of:

[0667] a first time offset difference of the SSB of the secondary serving cell and the SSB defined by the cell;

[0668] a second time offset of the SSB of the secondary serving cell and the SSB that is always transmitted;

[0669] a time offset of the SSB occurrence with the secondary serving cell as the time reference;

[0670] a time offset of the SSB occurrence with the special cell as the time reference;

[0671] a time offset of the SSB occurrence with the reference cell as the time reference.

[0672] In some embodiments, the first time offset is:

[0673] the transmission time of the first SSB is later than the transmission time of the SSB defined by the first cell by a time offset, or the transmission time of the first SSB is earlier than the transmission time of the SSB defined by the first cell by a time offset; wherein the SSB defined by the first cell is an M1th SSB defined by the first cell with SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0674] In some embodiments, the second time offset is:

[0675] the transmission time of the first SSB is later than the transmission time of the SSB always transmitted by a time offset, or the transmission time of the first SSB is earlier than the transmission time of the SSB always transmitted by a time offset; wherein the SSB always transmitted is an M2th SSB always transmitted with SFN equal to N2, N2 and M2 are both greater than or equal to 0, and N2 and M2 are both integers.

[0676] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of:

[0677] a frequency point and a physical cell identifier (PCI);

[0678] an auxiliary serving cell index;

[0679] a cell global identifier (CGI).

[0680] In some embodiments, the first SFN is any of:

[0681] a preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0682] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0683] In some embodiments, the configuration information is included in at least one of:

[0684] information of addition of an auxiliary serving cell;

[0685] information of SSB configuration of the auxiliary serving cell;

[0686] information of measurement object configuration.

[0687] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0688] It should be noted that the determination apparatus of the synchronization signal block transmission time provided by the present disclosure can realize all the method steps of the network device for determining the synchronization signal block transmission time, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described here.

[0689] Based on the same technical concept, the present disclosure also provides a determination apparatus of a synchronization signal block transmission time, which can realize the functions of the network device in the foregoing embodiments.

[0690] Referring to FIG. 8, FIG. 8 is a structural schematic diagram of a determination apparatus of a synchronization signal block transmission time provided by an embodiment of the present disclosure. As shown in FIG. 8, the determination apparatus of the synchronization signal block transmission time provided by the present embodiment is applied to a network device, and the determination apparatus 800 of the synchronization signal block transmission time comprises a sending unit 801.

[0691] The sending unit 801 is configured to send configuration information and transmission indication information to a terminal, and the transmission indication information is used to indicate an SSB transmission state; wherein the configuration information is used to determine a time domain position of an SSB transmission of a secondary serving cell based on the transmission indication information; and / or,

[0692] The sending unit 801 is configured to send configuration information comprising a start time of the SSB transmission to the terminal, wherein the configuration information is used to determine the time domain position of the SSB transmission of the secondary serving cell.

[0693] The configuration information comprises at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of the SSB transmission, a reference time of the SSB transmission, and a start time of the SSB transmission.

[0694] In some embodiments, the reference time of the SSB transmission comprises any one of the following:

[0695] The time of a reference cell is taken as the reference time;

[0696] The time of a special cell is taken as the reference time;

[0697] The time of a current secondary serving cell is taken as the reference time, and the current secondary serving cell is a secondary serving cell currently sending the SSB;

[0698] The time of a special cell is taken as the reference time before synchronization, and the time of a current secondary serving cell is taken as the reference time after synchronization;

[0699] The time of a reference cell is taken as the reference time before synchronization, and the time of a current secondary serving cell is taken as the reference time after synchronization.

[0700] In some embodiments, the start time of the SSB transmission is:

[0701] a start time of the first SFN.

[0702] In some embodiments, the time offset of the SSB transmission comprises at least one of:

[0703] a time offset of the secondary serving cell and the special cell;

[0704] a time offset of the secondary serving cell and the reference cell;

[0705] a SSB time offset of the secondary serving cell.

[0706] In some embodiments, the time offset of the SSB transmission is in units of any one of:

[0707] a millisecond level;

[0708] a slot level;

[0709] a symbol level.

[0710] In some embodiments, the SSB time offset of the secondary serving cell comprises at least one of:

[0711] a first time offset difference of the SSB of the secondary serving cell and the cell-defined SSB;

[0712] a second time offset of the SSB of the secondary serving cell and the SSB always transmitted;

[0713] a time offset of the SSB occurrence with the secondary serving cell as a time reference;

[0714] a time offset of the SSB occurrence with the special cell as a time reference;

[0715] a time offset of the SSB occurrence with the reference cell as a time reference.

[0716] In some embodiments, the first time offset is:

[0717] a time offset of a transmission time of a first SSB later than a transmission time of a first cell-defined SSB, or a time offset of the transmission time of the first SSB earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with an SFN equal to N1, N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

[0718] In some embodiments, the second time offset is:

[0719] The transmission time of the first SSB is sent with a time offset later than the transmission time of the always-transmitted SSB, or the transmission time of the first SSB is sent with a time offset earlier than the transmission time of the always-transmitted SSB; wherein the always-transmitted SSB is the M2th always-transmitted SSB with SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

[0720] In some embodiments, if the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following:

[0721] a frequency point and a physical cell identifier (PCI);

[0722] an auxiliary serving cell index;

[0723] a cell global identifier (CGI).

[0724] In some embodiments, the first SFN is any one of the following:

[0725] a preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0;

[0726] an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

[0727] In some embodiments, the configuration information is included in at least one of the following:

[0728] information about addition of an auxiliary serving cell;

[0729] information about SSB configuration of the auxiliary serving cell;

[0730] information about measurement object configuration.

[0731] In some embodiments, the transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

[0732] It should be noted that the determination apparatus for the transmission time of the synchronization signal block provided by the present disclosure can realize all the method steps implemented by the network device in the method embodiment of determining the transmission time of the synchronization signal block, and achieve the same technical effects. Therefore, the same parts and beneficial effects of the method embodiment will not be described here.

[0733] The technical solutions provided by the embodiments of the present disclosure can be applied to various systems. For example, the applicable systems can be a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a long term evolution advanced (LTE-A) system, a universal mobile system (UMTS), a worldwide interoperability for microwave access (WiMAX) system, a 5G new radio (NR) system and its evolved communication system, a 6G (sixth generation mobile communication technology) system, and the like. The various systems can include terminal devices and network devices. The system can also include a core network part, such as an evolved packet system (EPC), a 5G core network (5GC), and the like.

[0734] The terminal device involved in the embodiments of the present disclosure can refer to a device that provides voice and / or data connectivity for a user, a handheld device with wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the name of the terminal device can also be different, for example, in the 5G system or the 6G system, the terminal device can be called user equipment (User Equipment, UE). The wireless terminal device can be a USB storage device, other personal computer memory devices and a dongle, and can also communicate with one or more core networks (Core Network, CN) through a radio access network (Radio Access Network, RAN). The wireless terminal device can be a mobile terminal device, such as a mobile phone (or called “cellular” phone) and a computer with a mobile terminal device, for example, it can be a portable, pocket, handheld, computer built-in or vehicle-mounted mobile device, which exchanges language and / or data with the radio access network. For example, personal communication service (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDA), personal computers, tablet computers, machine type communication (Machine-type Communication, MTC) terminal devices, etc. The wireless terminal device can also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, and a wireless access device and a router / modem that meet the limitations of the present definition, etc. The embodiments of the present disclosure are not limited.

[0735] The network device related to the embodiments of the present disclosure can be a base station, which can include a plurality of cells serving terminals. According to different application scenarios, the base station can also be referred to as an access point, or can be a device in an access network that communicates with wireless terminal devices through one or more sectors over an air interface, or other names. The network device can be used to exchange received air frames and Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which can include an Internet Protocol (IP) communication network. The network device can also coordinate the management of the properties of the air interface. For example, the network device related to the embodiments of the present disclosure can be an evolved network device (eNB or e-NodeB) in a long term evolution (LTE) system, a 5G base station (gNB) in a 5G network architecture, and the like. It can also be a home evolved base station (HeNB), a relay node, a femto, a pico, a network test device, and the like, which is not limited in the embodiments of the present disclosure. In some network structures, the network device can include a centralized unit (CU) node and a distributed unit (DU) node, and the centralized unit and the distributed unit can also be arranged geographically apart.

[0736] It should be noted that the division of units in the embodiments of the present disclosure is illustrative, and is only a logical functional division. In actual implementation, another division manner can be used. In addition, each functional unit in each embodiment of the present disclosure can be integrated in one processing unit, or each unit can exist physically, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.

[0737] When the integrated unit is realized in the form of a software functional unit and sold or used as an independent product, it can be stored in a processor-readable storage medium. Based on this understanding, the technical solutions of the present disclosure, essentially or the part that makes contributions to the related art, or all or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium, and includes a plurality of instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor execute all or part of the steps of the embodiments of the present disclosure methods.

[0738] The embodiments of the present disclosure further provide a non-transitory readable storage medium. The non-transitory readable storage medium stores a computer program, and the computer program is used to make the processor execute any one of the method embodiments.

[0739] The non-transitory readable storage medium can be any available medium or data storage device that the processor can access, including but not limited to a magnetic memory (such as a floppy disk, a hard disk, a magnetic tape, a magneto-optical disk (MO), etc.), an optical memory (such as a CD, a DVD, a BD, a HVD, etc.), and a semiconductor memory (such as a ROM, an EPROM, an EEPROM, a non-volatile memory (NAND FLASH), a solid state disk (SSD)), etc.

[0740] Those skilled in the art should understand that the embodiments of the present disclosure can be provided as a method, a system, or a computer program product. Therefore, the present disclosure can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present disclosure can take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to a magnetic disk storage and an optical storage, etc.) including computer-usable program code.

[0741] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each flow and / or block in the flowcharts and / or block diagrams can be implemented by computer executable instructions, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams. These computer executable instructions can be provided to the processor of a general purpose computer, a special purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing devices produce the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0742] These processor executable instructions can also be stored in a processor readable storage medium that can direct the computer or other programmable data processing devices to work in a specific manner, so that the instructions stored in the processor readable storage medium produce a product including instruction devices, which implement the functions specified in one or more flows in the flowcharts and / or one or more blocks in the block diagrams.

[0743] Obviously, those skilled in the art can make various modifications and variations to the present disclosure without departing from the spirit and scope of the present disclosure. Thus, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and their equivalents, the present disclosure is also intended to include these modifications and variations.

Claims

1. A method of determining a synchronization signal block transmission time, wherein, Applied to a terminal, the method comprises: Receiving configuration information sent by a network device, the configuration information comprising at least one of: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission; In the case where the start time of SSB transmission is included in the configuration information, determining the time domain position of SSB transmission by the secondary serving cell according to the configuration information; and / or determining the time domain position of SSB transmission by the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate the transmission state of SSB.

2. The method of claim 1, wherein, The reference time of SSB transmission comprises any of: Taking the time of a reference cell as the reference time; Taking the time of a special cell as the reference time; Taking the time of a current secondary serving cell as the reference time, the current secondary serving cell being the secondary serving cell currently sending the SSB; Taking the time of a special cell as the reference time before synchronization, and taking the time of a current secondary serving cell as the reference time after synchronization; Taking the time of a reference cell as the reference time before synchronization, and taking the time of a current secondary serving cell as the reference time after synchronization.

3. The method of claim 1, wherein, The start time of SSB transmission is: The start time of a first system frame number (SFN).

4. The method of claim 1, wherein, The time offset of SSB transmission comprises at least one of: The time offset of the secondary serving cell and a special cell; The time offset of the secondary serving cell and a reference cell; The SSB time offset of the secondary serving cell.

5. The method of claim 4, the unit of the time offset of SSB transmission being any of: A millisecond level; A slot level; A symbol level.

6. The method of claim 4, wherein, The SSB time offset of the secondary serving cell comprises at least one of: The first time offset of the SSB of the secondary serving cell and a cell-defined SSB; The second time offset of the SSB of the secondary serving cell and an always-on SSB; The time offset of the occurrence of an SSB taking the secondary serving cell as the time reference; The time offset of the occurrence of an SSB taking the special cell as the time reference; The time offset of the occurrence of an SSB taking the reference cell as the time reference.

7. The method of claim 6, wherein, The first time offset is: The time offset of the transmission time of the first SSB being later than the transmission time of a first cell-defined SSB, or the time offset of the transmission time of the first SSB being earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with an SFN equal to N1, both N1 and M1 being greater than or equal to 0, and both N1 and M1 being integers.

8. The method of claim 6, wherein, The second time offset is: The time offset of the transmission time of the first SSB being later than the transmission time of an always-on SSB, or the time offset of the transmission time of the first SSB being earlier than the transmission time of the always-on SSB; Wherein the always-on SSB is an M2th always-on SSB with an SFN equal to N2, both N2 and M2 being greater than or equal to 0, and both N2 and M2 being integers.

9. The method of any one of claims 1-8, wherein, In a case that the configuration information includes a plurality of the SSB transmission periods and / or time offsets of a plurality of the SSB transmissions, determining, according to the configuration information and transmission indication information, a time domain position of the SSB transmitted by the secondary serving cell comprises: determining, according to the transmission indication information, a SSB transmission period and / or a time offset of a SSB transmission to be used from the configuration information; determining, according to the SSB transmission period and / or the time offset of the SSB transmission to be used, the time domain position of the SSB transmitted by the secondary serving cell.

10. The method of any one of claims 1-8, wherein, The method further comprises: determining a start effective time of the SSB transmission; wherein the start effective time of the SSB transmission comprises at least one of: a start time of the SSB transmission indicated by the network device; a time when the transmission indication information is received; a time of waiting for terminal processing signal after the transmission indication information is received; a start time of a nearest SFN to the time when the transmission indication information is received; a start time of a next SFN to the time when the transmission indication information is received; a start time of a previous SFN to the time when the transmission indication information is received; a start time of a nearest always-transmitted SSB to the time when the transmission indication information is received; a start time of a next always-transmitted SSB to the time when the transmission indication information is received; a start time of a previous always-transmitted SSB to the time when the transmission indication information is received.

11. The method according to any one of claims 6-8, wherein, In a case that a time offset of the SSB transmission is received, a calculation manner of the time offset of the SSB transmission comprises at least one of: in a case that a time of a special cell is used as a reference time, and a SSB time offset of the secondary serving cell is a time offset of a SSB occurrence with the special cell as a time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the special cell as the time reference; in a case that a time of a special cell is used as a reference time, and the SSB time offset of the secondary serving cell is a time offset of a SSB occurrence with the secondary serving cell as a time reference, the time offset of the SSB transmission is equal to a sum of a time offset of the secondary serving cell and the special cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference; in a case that a time of a reference cell is used as a reference time, and the SSB time offset of the secondary serving cell is a time offset of a SSB occurrence with the reference cell as a time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the reference cell as the time reference; in a case that a time of a reference cell is used as a reference time, and the SSB time offset of the secondary serving cell is a time offset of a SSB occurrence with the secondary serving cell as a time reference, the time offset of the SSB transmission is equal to a sum of a time offset of the secondary serving cell and the reference cell and the time offset of the SSB occurrence with the secondary serving cell as the time reference; In a case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the time offset of the SSB occurrence with the secondary serving cell as the time reference, the time offset of the SSB transmission is equal to the time offset of the SSB occurrence with the secondary serving cell as the time reference; In a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB; In a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the special cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB; In a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or, in a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB; In a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the first time offset, and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the reference cell, the second time offset, and the time offset of the always-transmitted SSB. In a case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the secondary serving cell is taken as the reference time, and the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

12. The method of claim 2, wherein, If the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following: a frequency point and a physical cell identifier (PCI); an index of the secondary serving cell; a cell global identifier (CGI).

13. The method of claim 3, wherein, The first SFN is any one of the following: a pre-configured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0; an N3th SFN after the transmission indication information sent by the network device is received, wherein the N3 is configured by the network device, the N3 is greater than or equal to 0, and the N3 is an integer.

14. The method of any one of claims 1-8, wherein, The configuration information is included in at least one of the following: information of addition of the secondary serving cell; information of SSB configuration of the secondary serving cell; information of measurement object configuration.

15. The method of any one of claims 1-8, wherein, The transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

16. A method of determining a synchronization signal block transmission time, wherein, The method is applied to a network device, and the method comprises: sending configuration information and transmission indication information to a terminal, wherein the transmission indication information is used to indicate a SSB transmission state; and / or sending configuration information including a start time of the SSB transmission to the terminal, wherein the configuration information is used to determine a time domain position of SSB transmission of a secondary serving cell; The configuration information comprises at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

17. The method of claim 16, wherein, The reference time of the SSB transmission comprises any one of the following: the time of the reference cell is taken as the reference time; The time of the special cell is taken as the reference time before synchronization, and the time of the current secondary serving cell is taken as the reference time after synchronization. The time of the current secondary serving cell is taken as the reference time. The time of the special cell is taken as the reference time before synchronization, and the time of the current secondary serving cell is taken as the reference time after synchronization. The time of the reference cell is taken as the reference time before synchronization, and the time of the current secondary serving cell is taken as the reference time after synchronization.

18. The method of claim 16, wherein, The start time of the SSB transmission is: The start time of the first SFN.

19. The method of claim 16, wherein, The time offset of the SSB transmission includes at least one of: The time offset of the secondary serving cell and the special cell; The time offset of the secondary serving cell and the reference cell; The SSB time offset of the secondary serving cell.

20. The method of claim 19, the unit of the time offset of the SSB transmission is any one of: Millisecond level; Slot level; Symbol level.

21. The method of claim 19, wherein, The SSB time offset of the secondary serving cell includes at least one of: The first time offset of the SSB of the secondary serving cell and the cell-defined SSB; The second time offset of the SSB of the secondary serving cell and the always-transmitted SSB; The time offset of the SSB occurrence with the secondary serving cell as the time reference; The time offset of the SSB occurrence with the special cell as the time reference; The time offset of the SSB occurrence with the reference cell as the time reference.

22. The method of claim 21, the first time offset is: the transmission time of the first SSB is later than the transmission time of the SSB defined by the first cell by a time offset, or the transmission time of the first SSB is earlier than the transmission time of the SSB defined by the first cell by a time offset; wherein The first cell-defined SSB is the M1th cell-defined SSB with the SFN equal to N1, wherein N1 and M1 are both greater than or equal to 0, and N1 and M1 are both integers.

23. The method of claim 21, the second time offset is: the transmission time of the first SSB is sent later than the transmission time of the always transmitted SSB by a time offset, or the transmission time of the first SSB is sent earlier than the transmission time of the always transmitted SSB by a time offset; wherein The always-transmitted SSB is the M2th always-transmitted SSB with the SFN equal to N2, wherein N2 and M2 are both greater than or equal to 0, and N2 and M2 are both integers.

24. The method of claim 17, wherein, If the time of the reference cell is taken as the reference time, the configuration information further includes at least one of: The frequency point and the physical cell identifier (PCI); The secondary serving cell index; The cell global identifier (CGI).

25. The method of claim 18, wherein, The first SFN is any one of: A preconfigured SFN sequence number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0; The N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein the N3 is configured by the network device, the N3 is greater than or equal to 0, and the N3 is an integer.

26. The method of any one of claims 16-25, wherein, The configuration information is included in at least one of: The information of the secondary serving cell addition; The information of the SSB configuration of the secondary serving cell; The information of the measurement object configuration.

27. The method of any one of claims 16-25, wherein, The transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

28. An apparatus for determining a synchronization signal block transmission time, wherein, The device is applied to a terminal, and the device includes: A receiving unit, configured to receive the configuration information sent by the network device, wherein the configuration information includes at least one of: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission. The processing unit is configured to: in a case where the configuration information comprises a start time of SSB transmission, determine a time domain position of SSB transmission of the secondary serving cell according to the configuration information; and / or determine the time domain position of SSB transmission of the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate a transmission state of SSB.

29. An apparatus for determining a synchronization signal block transmission time, wherein, The device is applied to a network equipment, and the device comprises: The sending unit is configured to send configuration information and transmission indication information to a terminal, the transmission indication information being used to indicate a transmission state of SSB; wherein the configuration information is used to determine a time domain position of SSB transmission of a secondary serving cell based on the transmission indication information; and / or, The sending unit is configured to send configuration information comprising a start time of SSB transmission to a terminal, wherein the configuration information is used to determine a time domain position of SSB transmission of a secondary serving cell. The configuration information comprises at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission.

30. An apparatus for determining a synchronization signal block transmission time, wherein, The device is applied to a terminal, and the device comprises a memory, a transceiver, and a processor: The memory is configured to store a computer program; The transceiver is configured to transceive data under the control of the processor; and the processor is configured to read the computer program in the memory and perform the following operations: receive configuration information sent by a network equipment, the configuration information comprising at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of SSB transmission, a reference time of SSB transmission, and a start time of SSB transmission; in a case where the configuration information comprises a start time of SSB transmission, determine a time domain position of SSB transmission of a secondary serving cell according to the configuration information; and / or determine the time domain position of SSB transmission of the secondary serving cell according to the configuration information and transmission indication information, the transmission indication information being used to indicate a transmission state of SSB.

31. The apparatus of claim 30, wherein, The reference time of SSB transmission comprises any one of the following: taking a time of a reference cell as the reference time; taking a time of a special cell as the reference time; taking a time of a current secondary serving cell as the reference time, the current secondary serving cell being a secondary serving cell currently sending the SSB; taking a time of a special cell as the reference time before synchronization, and taking a time of a current secondary serving cell as the reference time after synchronization; taking a time of a reference cell as the reference time before synchronization, and taking a time of a current secondary serving cell as the reference time after synchronization.

32. The apparatus of claim 30, wherein, The start time of SSB transmission is: a start time of a first system frame number (SFN).

33. The apparatus of claim 30, wherein, The time offset of SSB transmission comprises at least one of the following: a time offset of the secondary serving cell and a special cell; a time offset of the secondary serving cell and a reference cell; an SSB time offset of the secondary serving cell.

34. The apparatus of claim 33, wherein, The unit of the time offset of SSB transmission is any one of the following: a millisecond level; a slot level; a symbol level.

35. The apparatus of claim 33, wherein, The SSB time offset of the secondary serving cell comprises at least one of the following: a first time offset of an SSB of the secondary serving cell and a cell-defined SSB. a second time offset of the SSB of the secondary serving cell from an always-on SSB always-on SSB; a time offset of a time of occurrence of the SSB with respect to a time reference of the secondary serving cell; a time offset of a time of occurrence of the SSB with respect to a time reference of the special cell; a time offset of a time of occurrence of the SSB with respect to a time reference of the reference cell.

36. The apparatus of claim 35, wherein, The first time offset is: a time offset of a time of transmission of the first SSB from a time of transmission of a first cell-defined SSB, or a time offset of a time of transmission of the first SSB from a time of transmission of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with an SFN equal to N1, and N1 and M1 are both greater than or equal to 0 and are integers.

37. The apparatus of claim 35, wherein, The second time offset is: a time offset of a time of transmission of the first SSB from a time of transmission of an always-on SSB, or a time offset of a time of transmission of the first SSB from a time of transmission of the always-on SSB; wherein the always-on SSB is an M2th always-on SSB with an SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

38. The apparatus of any one of claims 30-37, wherein, In a case where the configuration information includes a plurality of SSB transmission periods and / or a plurality of time offsets of SSB transmission, the processor, when determining a time domain position of SSB transmission of a secondary serving cell according to the configuration information and transmission indication information, has functions of: determining, according to the transmission indication information, a SSB transmission period and / or a time offset of SSB transmission to be used from the configuration information; determining a time domain position of SSB transmission of a secondary serving cell according to the SSB transmission period and / or the time offset of SSB transmission to be used.

39. The device of any one of claims 30-37, wherein, The processor further has functions of: determining a start effective time of SSB transmission; wherein the start effective time of SSB transmission includes at least one of: a start time of SSB transmission indicated by a network device; a time of receiving the transmission indication information; a time of waiting for terminal processing of a signal after receiving the transmission indication information; a start time of an SFN closest to a time of receiving the transmission indication information; a start time of an SFN next to a time of receiving the transmission indication information; a start time of an SFN previous to a time of receiving the transmission indication information; a start time of an always-on SSB closest to a time of receiving the transmission indication information; a start time of an always-on SSB next to a time of receiving the transmission indication information; a start time of an always-on SSB previous to a time of receiving the transmission indication information.

40. The apparatus of any one of claims 35-37, wherein, After receiving a time offset of SSB transmission, a calculation manner of the time offset of SSB transmission includes at least one of: In the case that the time of the special cell is taken as the reference time and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the time reference of the special cell, the time offset of the SSB transmission is equal to the time offset of the SSB taken as the time reference of the special cell; In the case that the time of the special cell is taken as the reference time and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the time reference of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the time offset of the special cell and the time offset of the SSB taken as the time reference of the secondary serving cell; In the case that the time of the reference cell is taken as the reference time and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the time reference of the reference cell, the time offset of the SSB transmission is equal to the time offset of the SSB taken as the time reference of the reference cell; In the case that the time of the reference cell is taken as the reference time and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the time reference of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the time offset of the reference cell and the time offset of the SSB taken as the time reference of the secondary serving cell; In the case that the time of the secondary serving cell is taken as the reference time and the SSB time offset of the secondary serving cell is the time offset of the SSB taken as the time reference of the secondary serving cell, the time offset of the SSB transmission is equal to the time offset of the SSB taken as the time reference of the secondary serving cell; In the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the time reference of the special cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the time reference of the special cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB; In the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the time reference of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the first time offset and the time offset of the cell-defined SSB; or in the case that the time of the special cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the time reference of the secondary serving cell, the time offset of the SSB transmission is equal to the sum of the time offset of the secondary serving cell and the special cell and the second time offset and the time offset of the always-transmitted SSB; In a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB. In a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB. In a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the first time offset, and the cell-defined SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the first time offset and the time offset of the cell-defined SSB; or in a case that the time of the reference cell is taken as the reference time, the SSB time offset of the secondary serving cell is the second time offset, and the always-transmitted SSB is taken as the reference time of the reference cell, the time offset of the SSB transmission is equal to the sum of the second time offset and the time offset of the always-transmitted SSB.

41. The apparatus of claim 31, wherein, If the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following: a frequency point and a physical cell identifier (PCI); an index of the secondary serving cell; a cell global identifier (CGI).

42. The apparatus of claim 32, wherein, The first SFN is any one of the following: a pre-configured SFN number, wherein the SFN is equal to N4, and N4 is greater than or equal to 0; an N3th SFN after receiving the transmission indication information sent by the network device, wherein the N3 is configured by the network device, the N3 is greater than or equal to 0, and the N3 is an integer.

43. The device of claims 30-37, wherein, The configuration information is included in at least one of the following: information of addition of the secondary serving cell; information of SSB configuration of the secondary serving cell; information of measurement object configuration.

44. The device of claims 30-37, wherein, The transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

45. An apparatus for determining a synchronization signal block transmission time, wherein, The device is applied to a network device, and the device comprises a memory, a transceiver, and a processor. a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations: sending configuration information and transmission indication information to a terminal, the transmission indication information being used for indicating an SSB transmission state; wherein the configuration information is used for determining a time domain position of an SSB transmitted by a secondary serving cell based on the transmission indication information; and / or, sending configuration information including a start time of the SSB transmission to a terminal, wherein the configuration information is used for determining a time domain position of an SSB transmitted by a secondary serving cell; wherein the configuration information includes at least one of the following: a synchronization signal block (SSB) transmission period, a time offset of the SSB transmission, a reference time of the SSB transmission, a start time of the SSB transmission.

46. The device of claim 45, wherein, The reference time of the SSB transmission includes any of the following: taking a time of a reference cell as the reference time; taking a time of a special cell as the reference time; taking a time of a current secondary serving cell as the reference time, the current secondary serving cell being a secondary serving cell currently sending the SSB; taking a time of a special cell as the reference time before synchronization, and taking a time of a current secondary serving cell as the reference time after synchronization; taking a time of a reference cell as the reference time before synchronization, and taking a time of a current secondary serving cell as the reference time after synchronization.

47. The device of claim 45, wherein, The start time of the SSB transmission is: a start time of a first system frame number (SFN).

48. The device of claim 45, wherein, The time offset of the SSB transmission includes at least one of the following: a time offset of the secondary serving cell and a special cell; a time offset of the secondary serving cell and a reference cell; an SSB time offset of the secondary serving cell.

49. The device of claim 48, wherein, The unit of the time offset of the SSB transmission is any of the following: a millisecond level; a slot level; a symbol level.

50. The device of claim 48, wherein, The SSB time offset of the secondary serving cell includes at least one of the following: a first time offset of an SSB of the secondary serving cell and a cell-defined SSB; a second time offset of an SSB of the secondary serving cell and an always-transmitted SSB; a time offset of an SSB occurrence with the secondary serving cell as a time reference; a time offset of an SSB occurrence with the special cell as a time reference; a time offset of an SSB occurrence with the reference cell as a time reference.

51. The device of claim 50, wherein, The first time offset is: a time offset of a transmission time of a first SSB being later than a transmission time of a first cell-defined SSB, or a time offset of the transmission time of the first SSB being earlier than the transmission time of the first cell-defined SSB; wherein the first cell-defined SSB is an M1th cell-defined SSB with a system frame number (SFN) equal to N1, and N1 and M1 are both greater than or equal to 0 and are integers.

52. The device of claim 50, wherein, The second time offset is: The transmission time of the first SSB is sent with a time offset later than the transmission time of the always-transmitted SSB, or the transmission time of the first SSB is sent with a time offset earlier than the transmission time of the always-transmitted SSB; wherein the always-transmitted SSB is the M2th always-transmitted SSB with SFN equal to N2, and N2 and M2 are both greater than or equal to 0 and are integers.

53. The device of claim 46, wherein, If the time of the reference cell is taken as the reference time, the configuration information further comprises at least one of the following: a frequency point and a physical cell identifier (PCI); an auxiliary serving cell index; a cell global identifier (CGI).

54. The device of claim 47, wherein, The first SFN is any of the following: a pre-configured SFN number, wherein SFN is equal to N4, and N4 is greater than or equal to 0; an N3th SFN after the terminal receives the transmission indication information sent by the network device, wherein N3 is configured by the network device, N3 is greater than or equal to 0, and N3 is an integer.

55. The device of any one of claims 45-54, wherein, The configuration information is contained in at least one of the following: information about addition of the auxiliary serving cell; information about SSB configuration of the auxiliary serving cell; information about measurement object configuration.

56. The device of any one of claims 45-54, wherein, The transmission indication information is used to indicate that the transmission state of the SSB is an active state or a transmission state.

57. A non-transitory readable storage medium, wherein, The non-transitory readable storage medium stores a computer program, and the computer program is used to make the processor execute the method in any one of claims 1 to 27.

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