A synchronization signal block transmission method and apparatus, a network-side device, and a terminal

Abstract

The application provides a synchronization signal block transmission method and device, a network side equipment and a terminal, and relates to the technical field of communication. The method is applied to the network side equipment and includes the following steps: determining a target synchronization signal block (SSB) configuration which is currently activated; wherein the target SSB configuration is at least one of multiple SSB configurations; transmitting an SSB to a terminal according to the target SSB configuration; wherein the target SSB configuration includes at least one of an SSB signal structure and an SSB mode; the SSB mode refers to an arrangement mode of SSB positions in one SSB scanning period; and the SSB signal structure includes at least one of the following: the length of an SSB, the format of a synchronization signal and the time-frequency resources occupied by the synchronization signal, the format of a broadcast signal and the time-frequency resources occupied by the broadcast signal. The scheme of the application realizes the arrangement of more SSBs in one scanning period under the premise of ensuring flexibility.

Description

Technical Field

[0001] This invention relates to the field of communication technology, and in particular to a method, apparatus, network-side equipment, and terminal for transmitting synchronization signal blocks. Background Technology

[0002] In 5G New Radio (NR), base stations use beamforming to increase the coverage distance of wireless signals and transmit synchronization and broadcast signals required by user terminals for cell search through beam scanning, thus achieving coverage of the entire cell. Within one beam scanning cycle, the base station transmits multiple Synchronization Signal Blocks (SSBs) with different index numbers. After receiving an SSB, the user terminal determines its downlink beam based on the index number of the synchronization signal block.

[0003] In existing 5G NR, on the one hand, SSB occupies four Orthogonal Frequency Division Multiplexing (OFDM) symbols. On the other hand, there is one SSB burst set within one SSB cycle. The SSB cycle is configured as 5ms, 10ms, 20ms, 40ms, 80ms, or 160ms. However, the SSB burst set is limited to a portion of the first 5ms of the SSB cycle, which cannot fully utilize the SSB cycle and limits the number of SSBs.

[0004] In non-terrestrial networks (NTNs), due to higher path transmission loss, the requirements for beam gain are more stringent, resulting in narrower coverage widths for each beam. Therefore, to cover larger areas, more Synchronization Signal Blocks (SSBs) need to be set up within a single scan cycle. However, the current number of SSBs supported by 5G NR is relatively insufficient. Therefore, how to set up more SSBs within a single scan cycle while maintaining flexibility is a pressing technical problem that needs to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a method, apparatus, network-side device, and terminal for transmitting synchronization signal blocks, which solves the problem of how to set more synchronization signal blocks (SSBs) within a scan cycle while ensuring flexibility.

[0006] In a first aspect, embodiments of the present invention provide a method for transmitting synchronization signal blocks, applied to a network-side device, comprising:

[0007] Determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0008] According to the target SSB configuration, send a synchronization signal block SSB to the terminal;

[0009] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0010] Secondly, embodiments of the present invention provide a method for transmitting a synchronization signal block, applied to a terminal, comprising:

[0011] Determine the target SSB configuration currently active on the network-side device; wherein, the target SSB configuration is at least one of multiple SSB configurations;

[0012] According to the target SSB configuration, receive the SSB sent by the network-side device;

[0013] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0014] Thirdly, embodiments of the present invention provide a synchronization signal block transmission device, applied to a network-side device, comprising:

[0015] The first determining module is used to determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0016] The first sending module is used to send a synchronization signal block SSB to the terminal according to the target SSB configuration;

[0017] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0018] Fourthly, embodiments of the present invention provide a synchronization signal block transmission device applied to a terminal, comprising:

[0019] The second determining module is used to determine the target SSB configuration currently activated by the network-side device; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0020] The first receiving module is configured to receive the SSB sent by the network-side device according to the target SSB configuration;

[0021] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0022] Fifthly, embodiments of the present invention provide a network-side device, including: a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the method for transmitting synchronization signal blocks as described in the first aspect above.

[0023] In a sixth aspect, embodiments of the present invention provide a terminal, including a transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; when the processor executes the program or instructions, it implements the method for transmitting synchronization signal blocks as described in the second aspect above.

[0024] To achieve the above objectives, embodiments of the present invention provide a readable storage medium having a program or instructions stored thereon, which, when executed by a processor, implement the steps in the method for transmitting synchronization signal blocks as described in the first or second aspect above.

[0025] The beneficial effects of the above-described technical solution of the present invention are as follows:

[0026] The solution of this application determines at least one currently active target SSB configuration from multiple SSB configurations; the target SSB configuration includes at least one of SSB signal construction and SSB mode; and sends a synchronization signal block (SSB) to the terminal according to the target SSB configuration. In this way, the SSB length can be flexibly configured by setting the SSB construction, and the arrangement of SSB positions within an SSB scan cycle can be flexibly set by configuring the SSB mode. Thus, flexibility is ensured while also meeting the need to set more SSBs within an SSB scan cycle. Attached Figure Description

[0027] Figure 1 This is a flowchart of a method for transmitting synchronization signal blocks according to an embodiment of the present invention;

[0028] Figure 2 A flowchart illustrating a method for transmitting a synchronization signal block according to another embodiment of the present invention;

[0029] Figure 3 This is a structural diagram of the transmission device for the synchronization signal block according to an embodiment of the present invention;

[0030] Figure 4 This is a structural diagram of a synchronization signal block transmission device according to another embodiment of the present invention;

[0031] Figure 5 This is a hardware structure diagram of the network-side device according to an embodiment of the present invention;

[0032] Figure 6 This is a hardware structure diagram of the terminal according to an embodiment of the present invention. Detailed Implementation

[0033] To make the technical problems, technical solutions and advantages of the present invention clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0034] It should be understood that the phrase "one embodiment" or "an embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of the invention. Therefore, "in one embodiment" or "in an embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0035] In various embodiments of the present invention, it should be understood that the sequence number of each process described below does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0036] In addition, the terms "system" and "network" are often used interchangeably in this article.

[0037] In the embodiments provided in this application, it should be understood that "B corresponding to A" means that B is associated with A, and B can be determined based on A. However, it should also be understood that determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0038] like Figure 1 As shown, an embodiment of the present invention provides a method for transmitting a synchronization signal block, applied to a network-side device, comprising the following steps:

[0039] Step 101: Determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of multiple SSB configurations;

[0040] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0041] In this step, the SSB mode in the target SSB configuration is at least one of multiple SSB modes, and the SSB signal construction in the target SSB configuration is at least one of multiple SSB constructions.

[0042] Specifically, by configuring the SSB signal structure, the SSB length can be flexibly configured, such as one or more of {2, 3, 4, 5}. Furthermore, by configuring the SSB mode, multiple SSBs can be flexibly distributed throughout the entire SSB cycle. Thus, by setting the SSB structure, the SSB length can be flexibly configured to minimize the number of symbols occupied by an SSB (SSB length), achieving the goal of transmitting more SSBs within a given air interface resource. Moreover, by configuring the SSB mode, the arrangement of SSB positions within an SSB scan cycle can be flexibly set, ensuring that the SSB burst set is not limited to a portion of the first 5ms of the SSB cycle but is distributed throughout the entire SSB cycle, fully utilizing the SSB cycle and carrying more SSBs.

[0043] The symbol occupied by the SSB can be an OFDM symbol or other types of signal units.

[0044] It should be noted that the SSB defined in 5G NR cannot carry all the configuration information required for a user terminal to initiate random access. Some of the information is carried by System Information Block 1 (SIB1), so it actually requires more air interface resources. This application can also realize that all the configuration information required for a user terminal to initiate random access is carried by the SSB by configuring the SSB signal structure more flexibly.

[0045] Step 102: Send a synchronization signal block SSB to the terminal according to the target SSB configuration;

[0046] Specifically, network-side equipment (such as base stations) transmits SSBs within their coverage area using beam scanning, based on the target SSB configuration. The SSB contains synchronization and broadcast signals. The terminal (UE) detects the SSB to discover base station signals, obtain cell identifiers, and acquire the information required for access.

[0047] The above embodiments ensure flexibility and meet the need to set more SSBs within one SSB scan cycle, thus realizing a more flexible and effective SSB signal scanning method.

[0048] In one embodiment, the above method further includes at least one of the following:

[0049] The target SSB configuration is agreed upon through the protocol;

[0050] The target SSB configuration is associated with resource information; wherein, the resource information may include: frequency point and / or sub-carrier spacing (SCS);

[0051] The synchronization signal carries indication information of the target SSB configuration.

[0052] For example, if the number of SSB modes is 1, the base station does not need to indicate the SSB mode to the terminal. The terminal can determine the SSB mode used by the base station according to the protocol.

[0053] For example, if the number of SSB modes is greater than one, the base station selects one SSB mode as the active SSB mode during operation and deploys the actual SSB signal transmission according to that mode. As one implementation, the base station indicates the currently active SSB mode in the SSB signal, and the user terminal can determine the SSB mode currently used by the base station by parsing the information in the SSB signal. Specifically, an SSB mode indication field can be defined in the synchronization signal and / or broadcast signal. As another implementation, the SSB mode is associated with configurations such as frequency point and subcarrier spacing through protocol agreement. In this way, the base station does not need to indicate the SSB mode to the terminal; the terminal can determine the currently active SSB mode based on specific frequency point and / or subcarrier spacing information.

[0054] For example, the base station associates the activated SSB signal configuration with the configuration of resource information such as frequency point and subcarrier spacing. The base station does not indicate the SSB signal configuration to the terminal. The terminal can determine the SSB signal configuration based on the frequency point and / or subcarrier spacing.

[0055] For example, the base station carries indication information related to the construction of the SSB signal in the synchronization signal. After the terminal detects the synchronization signal, it can parse the indication information of the SSB signal construction. Specifically, for 5G NR-based synchronization signals, a portion of the information bits carried in the primary and secondary synchronization signals can be redefined to indicate the construction of the SSB signal.

[0056] In one embodiment, multiple SSB transmission opportunities within an SSB scan cycle are distributed throughout the entire SSB scan cycle.

[0057] It should be noted that a single SSB cycle contains several SSB transmission opportunities. Each SSB transmission opportunity represents the time-domain resource capable of transmitting one SSB. Within each SSB scan cycle, the SSB transmission opportunities are numbered sequentially from 0, denoted as issb, where issb = 0, 1, 2, ..., Nssb-1; where Nssb is the number of SSB transmission opportunities within an SSB cycle. On a given SSB transmission opportunity, the base station may or may not transmit an SSB signal, but the presence or absence of an actual SSB signal on that opportunity does not affect its arrangement and numbering.

[0058] Specifically, the SSB mode includes at least one of the following types:

[0059] Type 1: The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0060] For example, in this type one, the starting position of the nth SSB transmission opportunity in the SSB cycle is: Pssb = Lssb × n, where n = 0, 1, 2, ..., (Nssb - 1), Nssb = floor(Lcycle / Lssb);

[0061] Wherein, Pssb refers to the starting position of the SSB transmission timing (specifically, the symbol index of the first symbol of the SSB transmission timing within the SSB cycle, the same below), Nssb refers to the number of SSB transmission timings within one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle, and floor indicates rounding down; Nssb≥1, and Nssb is an integer.

[0062] When the SSB mode is type one, the SSB transmission timings are closely arranged and fill the entire SSB cycle, which can maximize the arrangement of SSB transmission timings and enable the SSB beam scan to cover more wavelengths.

[0063] Type 2: The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0064] For example, the starting position of the nth SSB transmission opportunity in the SSB cycle is: Pssb=7×n, where n=0,1,2,...,(Nssb-1),Nssb=floor(Lcycle / 7);

[0065] Where Pssb refers to the starting position of the SSB transmission timing, Nssb refers to the number of SSB transmission timings within one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle (number of symbols), and floor indicates rounding down; Nssb≥1, and Nssb is an integer.

[0066] In this example, the interval between SSB transmissions is slightly longer than that between Lssb transmissions.

[0067] In this type 2, on the one hand, the SSB transmission timing interval is distributed throughout the entire SSB cycle; on the other hand, other idle air interface resources are reserved between SSB transmission timings, which can be used to transmit other signals.

[0068] Type 3: The interval between two adjacent SSB transmission times within an SSB scan cycle is at least partially different.

[0069] For example, the starting position of the nth SSB transmission opportunity in an SSB cycle is: Pssb = Lssb × n, where n = 0, 1, 2, ..., (Nssb - 1), and mod(n, 4) ≠ 2 or 3, Nssb = floor(Lcycle / Lssb / 2); where Pssb refers to the starting position of the SSB transmission opportunity, Nssb refers to the number of SSB transmission opportunities in one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle (number of symbols), floor means rounding down, mod(n, 4) means the remainder of n divided by 4; Nssb ≥ 1, and Nssb is an integer.

[0070] In this type 3, the SSB transmission timing is unevenly distributed throughout the entire SSB cycle. While achieving the distribution of more SSBs, it also achieves the goal of reserving air interface resources for the transmission of other signals.

[0071] It should be noted that the interval between SSB transmission times can be set arbitrarily and can be different or partially the same. Furthermore, SSB transmission times can be configured to span multiple time slots or not; spanning multiple time slots means that an SSB crosses two adjacent time slots.

[0072] Of the three types mentioned above, the SSB cycle is flexibly configurable. The SSB cycle is configured with symbols as the smallest granularity, and can also be configured as an integer number of slots or milliseconds. One SSB cycle contains L cycles of symbols. The symbol indices within an SSB cycle start from 0 and are numbered 0, 1, 2, ..., Lcycle-1.

[0073] In one embodiment, the SSB mode is associated with the subcarrier spacing of the SSB.

[0074] In this embodiment, when it is necessary to consider coexistence with the terrestrial 5G NR network standard and to increase the number of SSB transmission opportunities, the SSB mode can be associated with the SSB subcarrier spacing.

[0075] Specifically, the SSB mode includes at least one of the following:

[0076] First Mode:

[0077] The subcarrier spacing of the SSB is 15kHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission opportunity in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥2, and Nssb is an integer.

[0078] In this first pattern, Pssb = 2, 8, 16, 24, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0079] Second mode:

[0080] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission opportunity in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0081] In this second mode, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0082] Third Mode:

[0083] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the third mode. The starting position of the nth SSB transmission opportunity in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities in one SSB scan period; Nssb≥2, and Nssb is an integer.

[0084] In this third mode, Pssb = 2, 8, 16, 24, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0085] Fourth mode:

[0086] The subcarrier spacing of the SSB is 120kHz, and the SSB mode is the fourth mode. The starting position of the nth SSB transmission opportunity in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0087] In this fourth pattern, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0088] Fifth Mode:

[0089] The subcarrier spacing of the SSB is 240 kHz, and the SSB mode is the fifth mode. The starting position of the nth SSB transmission opportunity in the fifth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56 × n, where n = 0, 1, 2, ..., (Nssb / 8 - 1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb ≥ 8, and Nssb is an integer.

[0090] In this fifth pattern, Pssb = 8, 12, 16, 20, 32, 36, 40, 44, ..., 8 + 56 × (Nssb / 8 - 1), 12 + 56 × (Nssb / 8 - 1), 16 + 56 × (Nssb / 8 - 1), 20 + 56 × (Nssb / 8 - 1), 32 + 56 × (Nssb / 8 - 1), 36 + 56 × (Nssb / 8 - 1), 40 + 56 × (Nssb / 8 - 1), 44 + 56 × (Nssb / 8 - 1).

[0091] Sixth Mode:

[0092] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the sixth mode. The starting position of the nth SSB transmission opportunity in the sixth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56 × n, where n = 0, 1, 2, ..., (Nssb / 8 - 1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb ≥ 8, and Nssb is an integer.

[0093] In this sixth pattern, Pssb = 8, 12, 16, 20, 32, 36, 40, 44, ..., 8 + 56 × (Nssb / 8 - 1), 12 + 56 × (Nssb / 8 - 1), 16 + 56 × (Nssb / 8 - 1), 20 + 56 × (Nssb / 8 - 1), 32 + 56 × (Nssb / 8 - 1), 36 + 56 × (Nssb / 8 - 1), 40 + 56 × (Nssb / 8 - 1), 44 + 56 × (Nssb / 8 - 1).

[0094] Seventh Mode:

[0095] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the seventh mode. The starting position of the nth SSB transmission opportunity in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0096] In this seventh pattern, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0097] Eighth Mode:

[0098] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the eighth mode. The starting position of the nth SSB transmission opportunity in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities in one SSB scan period; Nssb≥2, and Nssb is an integer.

[0099] In this eighth pattern, Pssb = 2, 8, 16, 24, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0100] It should be noted that in the above-mentioned sixth, seventh and eighth modes, the SSB timing of the sixth mode is aligned with the SSB transmission timing of the first and second modes, the SSB transmission timing of the seventh mode is aligned with the SSB transmission timing of the third mode, and the SSB transmission timing of the eighth mode is aligned with the SSB transmission timing of the fourth and fifth modes. This is conducive to the flexible deployment of SSB modes.

[0101] It should also be noted that in 5G NR, for SCS = 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz, the number of slots per millisecond (ms) are 1, 2, 4, 8, and 16 respectively, and the number of OFDM symbols are 14, 28, 56, 112, and 224 respectively. The time length of OFDM symbols differs between different SCSs; they are not in a one-to-one correspondence but rather have a multiple alignment relationship.

[0102] In one embodiment, the SSB mode is associated with the operating frequency of the base station. This embodiment eliminates or reduces the terminal's reliance on SSB mode indication information.

[0103] For example, the correspondence between operating frequencies and SSB modes can be seen in the table below:

[0104]

[0105]

[0106]

[0107] It should be noted that modes A1, B1, C1, D1, and E1 in the table above correspond to the first, second, third, fourth, and fifth modes mentioned above, respectively. For specific mode content and examples, please refer to the description in the above embodiments, which will not be repeated here.

[0108] like Figure 2 As shown, an embodiment of the present invention provides a method for transmitting a synchronization signal block, applied to a terminal, comprising the following steps:

[0109] Step 201: Determine the target SSB configuration currently activated by the network-side device; wherein the target SSB configuration is at least one of multiple SSB configurations.

[0110] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0111] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0112] In this step, the SSB mode in the target SSB configuration is at least one of multiple SSB modes, and the SSB signal construction in the target SSB configuration is at least one of multiple SSB constructions.

[0113] Step 202: Receive the SSB sent by the network-side device according to the target SSB configuration;

[0114] Specifically, network-side equipment (such as base stations) transmits SSBs within their coverage area using beam scanning, based on the target SSB configuration. The SSB contains synchronization and broadcast signals. The terminal (UE) detects the SSB to discover base station signals, obtain cell identifiers, and acquire the information required for access.

[0115] The above embodiments ensure flexibility and meet the need to set more SSBs within one SSB scan cycle, thus realizing a more flexible and effective SSB signal scanning method.

[0116] In one embodiment, step 201 above includes at least one of the following:

[0117] The target SSB configuration is determined through an agreement.

[0118] The target SSB configuration is determined based on the association between SSB configuration and resource information;

[0119] The target SSB configuration is determined based on the indication information of the target SSB configuration carried in the synchronization signal;

[0120] The target SSB configuration is determined through a blind inspection.

[0121] For example, if the number of SSB modes is 1, the base station does not need to indicate the SSB mode to the terminal. The terminal can determine the SSB mode used by the base station according to the protocol.

[0122] For example, if the number of SSB modes is greater than one, the base station selects one SSB mode as the active SSB mode during operation and deploys the actual SSB signal transmission according to that mode. As one implementation, the base station indicates the currently active SSB mode in the SSB signal, and the user terminal can determine the SSB mode currently used by the base station by parsing the information in the SSB signal. Specifically, an SSB mode indication field can be defined in the synchronization signal and / or broadcast signal. As another implementation, the SSB mode is associated with configurations such as frequency point and subcarrier spacing through protocol agreement. In this way, the base station does not need to indicate the SSB mode to the terminal; the terminal can determine the currently active SSB mode based on specific frequency point and / or subcarrier spacing information.

[0123] For example, the base station associates the activated SSB signal configuration with the configuration of resource information such as frequency point and subcarrier spacing. The base station does not indicate the SSB signal configuration to the terminal. The terminal can determine the SSB signal configuration based on the frequency point and / or subcarrier spacing.

[0124] For example, the base station carries indication information related to the construction of the SSB signal in the synchronization signal. After the terminal detects the synchronization signal, it can parse the indication information of the SSB signal construction. Specifically, for 5G NR-based synchronization signals, a portion of the information bits carried in the primary and secondary synchronization signals can be redefined to indicate the construction of the SSB signal.

[0125] For example, the terminal can traverse different SSB lengths and determine the structure of the SSB signal activated by the network-side device through blind detection.

[0126] In one embodiment, multiple SSB transmission opportunities within an SSB scan cycle are distributed throughout the entire SSB scan cycle.

[0127] It should be noted that a single SSB cycle contains several SSB transmission opportunities. Each SSB transmission opportunity represents the time-domain resource capable of transmitting one SSB. Within each SSB scan cycle, the SSB transmission opportunities are numbered sequentially from 0, denoted as issb, where issb = 0, 1, 2, ..., Nssb-1; where Nssb is the number of SSB transmission opportunities within an SSB cycle. On a given SSB transmission opportunity, the base station may or may not transmit an SSB signal, but the presence or absence of an actual SSB signal on that opportunity does not affect its arrangement and numbering.

[0128] Based on the above embodiments, the SSB mode includes at least one of the following:

[0129] Type 1: The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0130] For example, in this type one, the starting position of the nth SSB transmission opportunity in the SSB cycle is: Pssb = Lssb × n, where n = 0, 1, 2, ..., (Nssb - 1), Nssb = floor(Lcycle / Lssb);

[0131] Wherein, Pssb refers to the starting position of the SSB transmission timing (specifically, the symbol index of the first symbol of the SSB transmission timing within the SSB cycle, the same below), Nssb refers to the number of SSB transmission timings within one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle, and floor indicates rounding down; Nssb≥1, and Nssb is an integer.

[0132] When the SSB mode is type one, the SSB transmission timings are closely arranged and fill the entire SSB cycle, which can maximize the arrangement of SSB transmission timings and enable the SSB beam scan to cover more wavelengths.

[0133] Type 2: The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0134] For example, the starting position of the nth SSB transmission opportunity in the SSB cycle is: Pssb=7×n, where n=0,1,2,...,(Nssb-1), Nssb=floor(Lcycle / 7);; Nssb≥1, and Nssb is an integer;

[0135] Where Pssb refers to the starting position of the SSB transmission timing, Nssb refers to the number of SSB transmission timings within one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle (number of symbols), and floor indicates rounding down.

[0136] In this example, the interval between SSB transmissions is slightly longer than that between Lssb transmissions.

[0137] In this type 2, on the one hand, the SSB transmission timing interval is distributed throughout the entire SSB cycle; on the other hand, other idle air interface resources are reserved between SSB transmission timings, which can be used to transmit other signals.

[0138] Type 3: The interval between two adjacent SSB transmission times within an SSB scan cycle is at least partially different.

[0139] For example, the starting position of the nth SSB transmission opportunity in an SSB cycle is: Pssb = Lssb × n, where n = 0, 1, 2, ..., (Nssb - 1), and mod(n, 4) ≠ 2 or 3, Nssb = floor(Lcycle / Lssb / 2); where Pssb refers to the starting position of the SSB transmission opportunity, Nssb refers to the number of SSB transmission opportunities in one SSB scan cycle, Lssb refers to the length of each SSB, Lcycle refers to the length of one SSB scan cycle (number of symbols), floor means rounding down, mod(n, 4) means the remainder of n divided by 4; Nssb ≥ 1, and Nssb is an integer.

[0140] In this type 3, the SSB transmission timing is unevenly distributed throughout the entire SSB cycle. While achieving the distribution of more SSBs, it also achieves the goal of reserving air interface resources for the transmission of other signals.

[0141] It should be noted that the interval between SSB transmission times can be set arbitrarily and can be different or partially the same. Furthermore, SSB transmission times can be configured to span multiple time slots or not; spanning multiple time slots means that an SSB crosses two adjacent time slots.

[0142] Of the three types mentioned above, the SSB period is flexibly configurable. The SSB period has a symbol as the smallest granularity and can be configured as an integer number of slots or milliseconds. One SSB period contains L cycles of symbols. The symbol indices within an SSB period start from 0 and are numbered 0, 1, 2, ..., Lcycle-1; Lcycle ≥ 1, and Nssb is an integer.

[0143] In one embodiment, the SSB mode is associated with the subcarrier spacing of the SSB.

[0144] In this embodiment, when it is necessary to consider coexistence with the terrestrial 5G NR network standard and to increase the number of SSB transmission opportunities, the SSB mode can be associated with the SSB subcarrier spacing.

[0145] Specifically, the SSB mode includes at least one of the following:

[0146] First Mode:

[0147] The subcarrier spacing of the SSB is 15kHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission opportunity in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥2, and Nssb is an integer.

[0148] In this first pattern, Pssb = 2, 8, 16, 22, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0149] Second mode:

[0150] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission opportunity in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0151] In this second mode, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0152] Third Mode:

[0153] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the third mode. The starting position of the nth SSB transmission opportunity in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities in one SSB scan period; Nssb≥2, and Nssb is an integer.

[0154] In this third mode, Pssb = 2, 8, 16, 24, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0155] Fourth mode:

[0156] The subcarrier spacing of the SSB is 120kHz, and the SSB mode is the fourth mode. The starting position of the nth SSB transmission opportunity in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0157] In this fourth pattern, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0158] Fifth Mode:

[0159] The subcarrier spacing of the SSB is 240 kHz, and the SSB mode is the fifth mode. The starting position of the nth SSB transmission opportunity in the fifth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56 × n, where n = 0, 1, 2, ..., (Nssb / 8 - 1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb ≥ 8, and Nssb is an integer.

[0160] In this fifth pattern, Pssb = 8, 12, 16, 20, 32, 36, 40, 44, ..., 8 + 56 × (Nssb / 8 - 1), 12 + 56 × (Nssb / 8 - 1), 16 + 56 × (Nssb / 8 - 1), 20 + 56 × (Nssb / 8 - 1), 32 + 56 × (Nssb / 8 - 1), 36 + 56 × (Nssb / 8 - 1), 40 + 56 × (Nssb / 8 - 1), 44 + 56 × (Nssb / 8 - 1).

[0161] Sixth Mode:

[0162] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the sixth mode. The starting position of the nth SSB transmission opportunity in the sixth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56 × n, where n = 0, 1, 2, ..., (Nssb / 8 - 1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb ≥ 8, and Nssb is an integer.

[0163] In this sixth pattern, Pssb = 8, 12, 16, 20, 32, 36, 40, 44, ..., 8 + 56 × (Nssb / 8 - 1), 12 + 56 × (Nssb / 8 - 1), 16 + 56 × (Nssb / 8 - 1), 20 + 56 × (Nssb / 8 - 1), 32 + 56 × (Nssb / 8 - 1), 36 + 56 × (Nssb / 8 - 1), 40 + 56 × (Nssb / 8 - 1), 44 + 56 × (Nssb / 8 - 1).

[0164] Seventh Mode:

[0165] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the seventh mode. The starting position of the nth SSB transmission opportunity in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities within one SSB scan period; Nssb≥4, and Nssb is an integer.

[0166] In this seventh pattern, Pssb = 4, 8, 16, 20, 32, 36, 44, 48, ..., 4 + 28 × (Nssb / 4 - 1), 8 + 8 × (Nssb / 4 - 1), 16 + × (Nssb / 4 - 1), 20 + × (Nssb / 4 - 1).

[0167] Eighth Mode:

[0168] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the eighth mode. The starting position of the nth SSB transmission opportunity in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); where Pssb refers to the starting position of the SSB transmission opportunity, and Nssb refers to the number of SSB transmission opportunities in one SSB scan period; Nssb≥2, and Nssb is an integer.

[0169] In this eighth pattern, Pssb = 2, 8, 16, 22, ..., 2 + 14 × (Nssb / 2 - 1), 8 + 4 × (Nssb / 2 - 1).

[0170] It should be noted that in the above-mentioned sixth, seventh and eighth modes, the SSB timing of the sixth mode is aligned with the SSB transmission timing of the first and second modes, the SSB transmission timing of the seventh mode is aligned with the SSB transmission timing of the third mode, and the SSB transmission timing of the eighth mode is aligned with the SSB transmission timing of the fourth and fifth modes. This is conducive to the flexible deployment of SSB modes.

[0171] It should also be noted that in 5G NR, for SCS = 15kHz, 30kHz, 60kHz, 120kHz, and 240kHz, the number of slots per millisecond (ms) are 1, 2, 4, 8, and 16 respectively, and the number of OFDM symbols are 14, 28, 56, 112, and 224 respectively. The time length of OFDM symbols differs between different SCSs; they are not in a one-to-one correspondence but rather have a multiple alignment relationship.

[0172] In one embodiment, the SSB mode is associated with the operating frequency of the base station. This embodiment eliminates or reduces the terminal's reliance on SSB mode indication information.

[0173] like Figure 3 As shown, a synchronization signal block transmission device 300 according to an embodiment of the present invention is applied to a network-side device. The device 300 includes:

[0174] The first determining module 301 is used to determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0175] The first sending module 302 is used to send a synchronization signal block SSB to the terminal according to the target SSB configuration;

[0176] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0177] Optionally, the device 300 further includes at least one of the following:

[0178] The first configuration module is used to define the target SSB configuration through a protocol.

[0179] The second configuration module is used to associate the target SSB configuration with resource information;

[0180] The third configuration module is used to carry indication information of the target SSB configuration through the synchronization signal.

[0181] Optionally, multiple SSB transmission opportunities within an SSB scan cycle can be distributed throughout the entire SSB scan cycle.

[0182] Optionally, the SSB mode includes at least one of the following:

[0183] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0184] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0185] The interval between two adjacent SSB transmissions within an SSB scan cycle is at least partially different.

[0186] Optionally, the SSB mode is associated with the subcarrier spacing of the SSB.

[0187] Optionally, the SSB mode includes at least one of the following:

[0188] The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0189] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0190] The subcarrier spacing of the SSB is 30KHz, and the SSB mode is the third mode. The starting position of the nth SSB transmission timing in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0191] The subcarrier spacing of the SSB is 120kHz, and the SSB mode is the fourth mode. The starting position of the nth SSB transmission timing in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0192] The subcarrier spacing of the SSB is 240kHz, and the SSB mode is the fifth mode. The starting position of the nth SSB transmission timing in the fifth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0193] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the sixth mode. The starting position of the nth SSB transmission timing in the sixth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0194] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the seventh mode. The starting position of the nth SSB transmission timing in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0195] The subcarrier spacing of the SSB is 60KHz, and the SSB mode is the eighth mode. The starting position of the nth SSB transmission timing in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1).

[0196] Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

[0197] The apparatus provided in this embodiment of the invention can execute the method embodiment on the network device side described above. Its implementation principle and technical effect are similar, and will not be repeated here.

[0198] like Figure 4 As shown, a synchronization signal block transmission device 400 according to an embodiment of the present invention is applied to a terminal. The device 400 includes:

[0199] The second determining module 401 is used to determine the target SSB configuration currently activated by the network-side device; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0200] The first receiving module 402 is used to receive the SSB sent by the network-side device according to the target SSB configuration;

[0201] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0202] Optionally, the second determining module 401 includes at least one of the following:

[0203] The first determining submodule is used to determine the target SSB configuration through a protocol agreement;

[0204] The second determination submodule is used to determine the target SSB configuration based on the association between SSB configuration and resource information;

[0205] The third determining submodule is used to determine the target SSB configuration based on the indication information of the target SSB configuration carried in the synchronization signal;

[0206] The fourth determination submodule is used to determine the target SSB configuration through blind detection.

[0207] Optionally, multiple SSB transmission opportunities within an SSB scan cycle can be distributed throughout the entire SSB scan cycle.

[0208] Optionally, the SSB mode includes at least one of the following:

[0209] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0210] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0211] The interval between two adjacent SSB transmissions within an SSB scan cycle is at least partially different.

[0212] Optionally, the SSB mode is associated with the subcarrier spacing of the SSB.

[0213] Optionally, the SSB mode includes at least one of the following:

[0214] The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0215] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0216] The subcarrier spacing of the SSB is 30kHz, the SSB mode is the third mode, and the starting position of the nth SSB transmission timing in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0217] The subcarrier spacing of the SSB is 120kHz, the SSB mode is the fourth mode, and the starting position of the nth SSB transmission timing in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0218] The subcarrier spacing of the SSB is 240kHz, the SSB mode is the fifth mode, and the starting position of the nth SSB transmission timing in the fifth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0219] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the sixth mode, and the starting position of the nth SSB transmission timing in the sixth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0220] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the seventh mode, and the starting position of the nth SSB transmission timing in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0221] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the eighth mode, and the starting position of the nth SSB transmission timing in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0222] Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

[0223] The apparatus provided in this embodiment of the invention can execute the method embodiment on the terminal side described above. Its implementation principle and technical effect are similar, and will not be repeated here.

[0224] Another embodiment of the network-side device of the present invention, such as Figure 5 As shown, it includes a transceiver 510, a processor 500, a memory 520, and a program or instructions stored in the memory 520 and executable on the processor 500; when the processor 500 executes the program or instructions, it performs the following steps:

[0225] Determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations;

[0226] According to the target SSB configuration, send a synchronization signal block SSB to the terminal;

[0227] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0228] The transceiver 510 is used to receive and send data under the control of the processor 500.

[0229] Among them, Figure 5 In this context, the bus architecture may include any number of interconnected buses and bridges, specifically linking various circuits together, represented by one or more processors (processor 500) and memory (memory 520). The bus architecture may also link together 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 described further herein. The bus interface provides an interface. The transceiver 510 may be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 during operation.

[0230] Optionally, the processor 500 is also configured to read the computer program and perform the following steps:

[0231] The target SSB configuration is agreed upon through the protocol;

[0232] Associate the target SSB configuration with resource information;

[0233] The synchronization signal carries indication information of the target SSB configuration.

[0234] Optionally, multiple SSB transmission opportunities within an SSB scan cycle can be distributed throughout the entire SSB scan cycle.

[0235] Optionally, the SSB mode includes at least one of the following:

[0236] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0237] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0238] The interval between two adjacent SSB transmissions within an SSB scan cycle is at least partially different.

[0239] Optionally, the SSB mode is associated with the subcarrier spacing of the SSB.

[0240] Optionally, the SSB mode includes at least one of the following:

[0241] The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0242] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0243] The subcarrier spacing of the SSB is 30KHz, and the SSB mode is the third mode. The starting position of the nth SSB transmission timing in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0244] The subcarrier spacing of the SSB is 120kHz, and the SSB mode is the fourth mode. The starting position of the nth SSB transmission timing in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0245] The subcarrier spacing of the SSB is 240kHz, and the SSB mode is the fifth mode. The starting position of the nth SSB transmission timing in the fifth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0246] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the sixth mode. The starting position of the nth SSB transmission timing in the sixth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0247] The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the seventh mode. The starting position of the nth SSB transmission timing in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0248] The subcarrier spacing of the SSB is 60KHz, and the SSB mode is the eighth mode. The starting position of the nth SSB transmission timing in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0249] Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

[0250] Another embodiment of the present invention provides a mobile terminal, such as... Figure 6 As shown, it includes a transceiver 610, a processor 600, a memory 620, and a program or instructions stored in the memory 620 and executable on the processor 600; when the processor 600 executes the program or instructions, it performs the following steps:

[0251] Determine the target SSB configuration currently active on the network-side device; wherein, the target SSB configuration is at least one of multiple SSB configurations;

[0252] According to the target SSB configuration, receive the SSB sent by the network-side device;

[0253] The target SSB configuration includes at least one of SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal.

[0254] The transceiver 610 is used to receive and send data under the control of the processor 600.

[0255] Among them, Figure 6 In this context, the bus architecture can include any number of interconnected buses and bridges, specifically linking various circuits of one or more processors represented by processor 600 and memory represented by memory 620 together. 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 described further herein. The bus interface provides an interface. Transceiver 610 can be multiple elements, including transmitters and receivers, providing a unit for communicating with various other devices over a transmission medium. For different user equipment, user interface 630 can also be an interface capable of connecting external or internal devices, including but not limited to keypads, displays, speakers, microphones, joysticks, etc.

[0256] The processor 600 is responsible for managing the bus architecture and general processing, while the memory 620 can store the data used by the processor 600 when performing operations.

[0257] Optionally, the processor 600 is also configured to read the computer program and perform the following steps:

[0258] The target SSB configuration is determined through an agreement.

[0259] The target SSB configuration is determined based on the association between SSB configuration and resource information;

[0260] The target SSB configuration is determined based on the indication information of the target SSB configuration carried in the synchronization signal;

[0261] The target SSB configuration is determined through a blind inspection.

[0262] Optionally, multiple SSB transmission opportunities within an SSB scan cycle can be distributed throughout the entire SSB scan cycle.

[0263] Optionally, the SSB mode includes at least one of the following:

[0264] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero.

[0265] The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero.

[0266] The interval between two adjacent SSB transmissions within an SSB scan cycle is at least partially different.

[0267] Optionally, the SSB mode is associated with the subcarrier spacing of the SSB.

[0268] Optionally, the SSB mode includes at least one of the following:

[0269] The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0270] The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0271] The subcarrier spacing of the SSB is 30kHz, the SSB mode is the third mode, and the starting position of the nth SSB transmission timing in the third mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0272] The subcarrier spacing of the SSB is 120kHz, the SSB mode is the fourth mode, and the starting position of the nth SSB transmission timing in the fourth mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0273] The subcarrier spacing of the SSB is 240kHz, the SSB mode is the fifth mode, and the starting position of the nth SSB transmission timing in the fifth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0274] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the sixth mode, and the starting position of the nth SSB transmission timing in the sixth mode is: Pssb={8,12,16,20,32,36,40,44}+56×n, where n=0,1,2,...,(Nssb / 8-1); Nssb≥8, and Nssb is an integer;

[0275] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the seventh mode, and the starting position of the nth SSB transmission timing in the seventh mode is: Pssb={4, 8, 16, 20}+28×n, where n=0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer;

[0276] The subcarrier spacing of the SSB is 60kHz, the SSB mode is the eighth mode, and the starting position of the nth SSB transmission timing in the eighth mode is: Pssb={2,8}+14×n, where n=0,1,2,...,(Nssb / 2-1); Nssb≥2, and Nssb is an integer;

[0277] Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

[0278] This invention provides a readable storage medium storing a program or instructions. When executed by a processor, the program or instructions implement the steps in the synchronization signal block transmission method described above, achieving the same technical effect. To avoid repetition, further details are omitted here. The computer-readable storage medium may include read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0279] It should be further noted that the terminals described in this specification include, but are not limited to, smartphones, tablets, etc., and many of the functional components described are referred to as modules in order to emphasize the independence of their implementation.

[0280] In this embodiment of the invention, the module can be implemented in software so that it can be executed by various types of processors. For example, an identified executable code module may include one or more physical or logical blocks of computer instructions, which may be constructed as objects, procedures, or functions. Nevertheless, the executable code of the identified module does not need to be physically located together, but may include different instructions stored in different bits, which, when logically combined, constitute the module and achieve the module's intended purpose.

[0281] In practice, an executable code module can be a single instruction or many instructions, and can even be distributed across multiple different code segments, different programs, and across multiple memory devices. Similarly, operational data can be identified within the module and can be implemented in any suitable form and organized within any suitable type of data structure. This operational data can be collected as a single dataset or distributed across different locations (including different storage devices), and can exist, at least in part, solely as electronic signals within the system or network.

[0282] When a module can be implemented using software, considering the current level of hardware technology, modules that can be implemented in software can be implemented using hardware circuits by those skilled in the art to achieve the corresponding functions, without considering cost. These hardware circuits include conventional very-large-scale integrated circuits (VLSI) or gate arrays, as well as existing semiconductors such as logic chips and transistors, or other discrete components. Modules can also be implemented using programmable hardware devices, such as field-programmable gate arrays, programmable array logic, and programmable logic devices.

[0283] The exemplary embodiments described above are with reference to the accompanying drawings. Many different forms and embodiments are feasible without departing from the spirit and teachings of the invention. Therefore, the invention should not be construed as limiting the exemplary embodiments set forth herein. Rather, these exemplary embodiments are provided to make the invention complete and convey the scope of the invention to those skilled in the art. In these drawings, component dimensions and relative dimensions may be exaggerated for clarity. The terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. As used herein, unless clearly indicated otherwise, the singular forms “a,” “an,” and “the” are intended to include all such forms. It will be further understood that the terms “comprising” and / or “including”, when used in this specification, indicate the presence of the stated features, integers, steps, operations, components, and / or elements, but do not exclude the presence or addition of one or more other features, integers, steps, operations, components, and / or groups thereof. Unless otherwise indicated, when stated, a range of values ​​includes the upper and lower limits of the range and any subranges in between.

[0284] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A method for transmitting a synchronization signal block, characterized in that, Applied to network-side devices, including: Determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations; According to the target SSB configuration, send a synchronization signal block SSB to the terminal; The target SSB configuration includes SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle, and the transmission opportunities of multiple SSBs within an SSB scan cycle are distributed throughout the entire SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal; The SSB mode includes at least one of the following: The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero. The interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero. The interval between two adjacent SSB transmissions within an SSB scan cycle is at least partially different.

2. The method for transmitting synchronization signal blocks according to claim 1, characterized in that, The method further includes at least one of the following: The target SSB configuration is agreed upon through the protocol; Associate the target SSB configuration with resource information; The synchronization signal carries indication information of the target SSB configuration.

3. The method for transmitting a synchronization signal block according to claim 1, characterized in that, The SSB mode is associated with the subcarrier spacing of the SSB.

4. The method for transmitting synchronization signal blocks according to claim 3, characterized in that, The SSB mode includes at least one of the following: The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer. The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb = {4, 8, 16, 20} + 28 × n, where n = 0, 1, 2, ..., (Nssb / 4 - 1); Nssb ≥ 4, and Nssb is an integer; The subcarrier spacing of the SSB is 30KHz, and the SSB mode is the third mode. The starting position of the nth SSB transmission timing in the third mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer; The subcarrier spacing of the SSB is 120KHz, and the SSB mode is the fourth mode. The starting position of the nth SSB transmission timing in the fourth mode is: Pssb = {4, 8, 16, 20} + 28×n, where n = 0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer; The subcarrier spacing of the SSB is 240kHz, and the SSB mode is the fifth mode. The starting position of the nth SSB transmission timing in the fifth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56×n, where n = 0, 1, 2, ..., (Nssb / 8-1); Nssb≥8, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the sixth mode. The starting position of the nth SSB transmission timing in the sixth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56×n, where n = 0, 1, 2, ..., (Nssb / 8-1); Nssb≥8, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the seventh mode. The starting position of the nth SSB transmission timing in the seventh mode is: Pssb = {4, 8, 16, 20} + 28 × n, where n = 0, 1, 2, ..., (Nssb / 4 - 1); Nssb ≥ 4, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, and the SSB mode is the eighth mode. The starting position of the nth SSB transmission timing in the eighth mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer; Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

5. A method for transmitting a synchronization signal block, characterized in that, Applied to terminals, including: Determine the target SSB configuration currently active on the network-side device; wherein, the target SSB configuration is at least one of multiple SSB configurations; According to the target SSB configuration, receive the SSB sent by the network-side device; The target SSB configuration includes SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle, with multiple SSB transmission opportunities distributed throughout the entire SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal; the SSB mode includes at least one of the following: the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is at least partially different.

6. The method for transmitting a synchronization signal block according to claim 5, characterized in that, Determining the currently active target SSB configuration of the network-side device includes at least one of the following: The target SSB configuration is determined through an agreement. The target SSB configuration is determined based on the association between SSB configuration and resource information; The target SSB configuration is determined based on the indication information of the target SSB configuration carried in the synchronization signal; The target SSB configuration is determined through a blind inspection.

7. The method for transmitting a synchronization signal block according to claim 5, characterized in that, The SSB mode is associated with the subcarrier spacing of the SSB.

8. The method for transmitting a synchronization signal block according to claim 7, characterized in that, The SSB mode includes at least one of the following: The subcarrier spacing of the SSB is 15KHz, and the SSB mode is the first mode. The starting position of the nth SSB transmission timing in the first mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer. The subcarrier spacing of the SSB is 30kHz, and the SSB mode is the second mode. The starting position of the nth SSB transmission timing in the second mode is: Pssb = {4, 8, 16, 20} + 28 × n, where n = 0, 1, 2, ..., (Nssb / 4 - 1); Nssb ≥ 4, and Nssb is an integer; The subcarrier spacing of the SSB is 30KHz, the SSB mode is the third mode, and the starting position of the nth SSB transmission timing in the third mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer; The subcarrier spacing of the SSB is 120KHz, the SSB mode is the fourth mode, and the starting position of the nth SSB transmission timing in the fourth mode is: Pssb = {4, 8, 16, 20} + 28×n, where n = 0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer; The subcarrier spacing of the SSB is 240kHz, the SSB mode is the fifth mode, and the starting position of the nth SSB transmission timing in the fifth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56×n, where n = 0, 1, 2, ..., (Nssb / 8-1); Nssb≥8, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, the SSB mode is the sixth mode, and the starting position of the nth SSB transmission timing in the sixth mode is: Pssb = {8, 12, 16, 20, 32, 36, 40, 44} + 56×n, where n = 0, 1, 2, ..., (Nssb / 8-1); Nssb≥8, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, the SSB mode is the seventh mode, and the starting position of the nth SSB transmission timing in the seventh mode is: Pssb = {4, 8, 16, 20} + 28 × n, where n = 0, 1, 2, ..., (Nssb / 4-1); Nssb≥4, and Nssb is an integer; The subcarrier spacing of the SSB is 60kHz, the SSB mode is the eighth mode, and the starting position of the nth SSB transmission timing in the eighth mode is: Pssb = {2, 8} + 14×n, where n = 0, 1, 2, ..., (Nssb / 2-1); Nssb≥2, and Nssb is an integer; Wherein, Pssb refers to the starting position of the SSB transmission timing, and Nssb refers to the number of SSB transmission timings within one SSB scan cycle.

9. A transmission device for a synchronization signal block, characterized in that, Applied to network-side devices, including: The first determining module is used to determine the currently active target synchronization signal block (SSB) configuration; wherein the target SSB configuration is at least one of a plurality of SSB configurations; The first sending module is used to send a synchronization signal block SSB to the terminal according to the target SSB configuration; The target SSB configuration includes SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle, with multiple SSB transmission opportunities distributed throughout the entire SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal; the SSB mode includes at least one of the following: the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is at least partially different.

10. A transmission device for a synchronization signal block, characterized in that, Applied to terminals, including: The second determining module is used to determine the target SSB configuration currently activated by the network-side device; wherein the target SSB configuration is at least one of a plurality of SSB configurations; The first receiving module is configured to receive the SSB sent by the network-side device according to the target SSB configuration; The target SSB configuration includes SSB signal construction and SSB mode; the SSB mode refers to the arrangement of SSB positions within an SSB scan cycle, with multiple SSB transmission opportunities distributed throughout the entire SSB scan cycle; the SSB signal construction includes at least one of the following: SSB length, synchronization signal format and time-frequency resources occupied by the synchronization signal, broadcast signal format and time-frequency resources occupied by the broadcast signal; the SSB mode includes at least one of the following: the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is the same and not zero; the interval between two adjacent SSB transmission opportunities within an SSB scan cycle is at least partially different.

11. A network-side device, comprising: A transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; characterized in that, when the processor executes the program or instructions, it implements the method for transmitting a synchronization signal block as described in any one of claims 1-4.

12. A terminal, comprising: A transceiver, a processor, a memory, and a program or instructions stored in the memory and executable on the processor; characterized in that, when the processor executes the program or instructions, it implements the method for transmitting a synchronization signal block as described in any one of claims 5-8.

13. A readable storage medium having a program or instructions stored thereon, characterized in that, When the program or instructions are executed by the processor, they implement the steps in the method for transmitting a synchronization signal block as described in any one of claims 1-4, or the steps in the method for transmitting a synchronization signal block as described in any one of claims 5-8.

Images