CN111836380A - Synchronization signal block receiving method, sending method, terminal and network side device - Google Patents

Abstract

Embodiments of the present invention provide a method for receiving a synchronization signal block, a method for sending it, a terminal, and a network-side device. The receiving method includes: receiving an SSB at a frequency position of an SSB in a target frequency band, where the target frequency band includes at least one continuous Sub-bands that can be used, each of the sub-bands includes multiple sub-channels with the same bandwidth, the multiple sub-channels are consecutively arranged, each of the sub-channels includes m SSBs, and m is greater than or equal to 1 A positive integer of , the i-th SSB in all subchannels of the subband is arranged according to the specified frequency interval, where 1≤i≤m. In the embodiment of the present invention, the frequency position of the SSB in the target frequency band is clarified, so that the SSB can be searched at a fixed frequency position, the complexity of the terminal searching for the SSB is reduced, and the power consumption of the terminal is reduced.

Description

Synchronization signal block receiving method, sending method, terminal and network side device

technical field

Embodiments of the present invention relate to the field of wireless communication technologies, and in particular, to a method for receiving and sending a synchronization signal block, a terminal, and a network-side device.

Background technique

A terminal (or user equipment, User Equipment, UE) can obtain a system related to base station synchronization by searching for a synchronization signal block (SS Block, SSB, also called a synchronization signal/physical broadcast signal block, SS/PBCH block). information.

In New Radio (NR), the channel position can be deployed arbitrarily within a frequency band (band), the bandwidth of which can be configured, and the position of the SSB can be deployed at any position within the channel.

However, in the NR unlicensed frequency band (NR in Unlicensed Spectrum, NR-U), subject to regulatory requirements, the deployment of the channel is relatively fixed, and the bandwidth of the channel must be an integer multiple of the sub-channel (such as 20MHz), and the sub-channels are arranged consecutively. If the definition method of SSB frequency position in NR is used, it will lead to too many possible frequency positions of SSB, increase the complexity of the initial search of the terminal, and increase the energy consumption of the terminal.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method for receiving a synchronization signal block, a method for sending it, a terminal, and a network-side device, which are used to solve the problem that the method for defining the frequency position of the related SSB is not applicable in the target frequency band.

In order to solve the above-mentioned technical problems, the present invention is achieved in this way:

In a first aspect, an embodiment of the present invention provides a method for receiving a synchronization signal block, which is applied to a terminal, including:

The SSB is received at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous available sub-frequency band, each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, a plurality of the sub-channels Continuously arranged, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged at a specified frequency interval, where 1 ≤i≤m.

In a second aspect, an embodiment of the present invention provides a method for sending a synchronization signal block, which is applied to a network side device, including:

The SSB is sent at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous available sub-frequency band, each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, a plurality of the sub-channels Continuously arranged, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged at a specified frequency interval, where 1 ≤i≤m.

In a third aspect, an embodiment of the present invention provides a terminal, including:

The receiving module is configured to receive the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each sub-frequency band includes a plurality of sub-channels with the same bandwidth, The sub-channels are arranged consecutively, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged according to the specified frequency interval cloth, where 1≤i≤m.

In a fourth aspect, an embodiment of the present invention provides a network side device, including:

The sending module is configured to send the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, The sub-channels are arranged consecutively, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged according to the specified frequency interval cloth, where 1≤i≤m.

In a fifth aspect, an embodiment of the present invention provides a terminal, including a processor, a memory, and a computer program stored on the memory and executable on the processor, when the computer program is executed by the processor The steps of implementing the above method for receiving a synchronization signal block.

In a sixth aspect, an embodiment of the present invention provides a network-side device, including a processor, a memory, and a computer program stored on the memory and executable on the processor, the computer program being executed by the processor When executed, the steps of the above-mentioned method for sending a synchronization signal block are realized.

In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method for receiving a synchronization signal block are implemented, Alternatively, when the computer program is executed by the processor, the steps of the above-mentioned method for sending a synchronization signal block are implemented.

In the embodiment of the present invention, the frequency position of the SSB in the target frequency band is clarified, so that the SSB can be searched at a fixed frequency position, the complexity of the terminal searching for the SSB is reduced, and the power consumption of the terminal is reduced.

Description of drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are for the purpose of illustrating preferred embodiments only and are not to be considered limiting of the invention. Also, the same components are denoted by the same reference numerals throughout the drawings. In the attached image:

FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention;

Fig. 2 is the schematic diagram of the determination method of the numbering of NR-ARFCN in 0-3000MHz frequency spectrum;

3 is a schematic flowchart of a method for receiving a synchronization signal block according to an embodiment of the present invention;

4 is a schematic diagram of a target frequency band according to an embodiment of the present invention;

5 is a schematic diagram of a target frequency band according to another embodiment of the present invention;

6 is a schematic diagram of a deployment method of an SSB according to Embodiment 1 of the present invention;

7 is a schematic diagram of a deployment method of an SSB according to Embodiment 2 of the present invention;

8 is a schematic diagram of a deployment method of an SSB according to Embodiment 3 of the present invention;

9 is a schematic diagram of a target frequency band according to Embodiment 5 of the present invention;

FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention;

FIG. 11 is a schematic structural diagram of a terminal according to another embodiment of the present invention;

FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present invention;

13 is a schematic flowchart of a method for sending a synchronization signal block according to an embodiment of the present invention;

14 is a schematic structural diagram of a network side device according to an embodiment of the present invention;

FIG. 15 is a schematic structural diagram of a network side device according to another embodiment of the present invention.

Detailed ways

The term "comprising" and any variations thereof in the description and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to the explicit Those steps or units are explicitly listed, but may include other steps or units not expressly listed or inherent to the process, method, product or apparatus. In addition, the use of "and/or" in the description and the claims indicates at least one of the connected objects, such as A and/or B, indicating that there are three cases including A alone, B alone, and both A and B.

In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as an example, illustration or illustration. Any embodiments or designs described as "exemplary" or "such as" in the embodiments of the present invention should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.

Embodiments of the present invention will be described below with reference to the accompanying drawings. The receiving method, the sending method, the terminal, and the network side device of the synchronization signal block provided by the embodiments of the present invention can be applied to a wireless communication system. The wireless communication system may adopt a 5G system, or an Evolved Long Term Evolution (Evolved Long Term Evolution, eLTE) system, or a subsequent evolved communication system.

Referring to FIG. 1 , it is a schematic structural diagram of a wireless communication system according to an embodiment of the present invention. As shown in FIG. 1 , the wireless communication system may include: a network-side device 11 and a terminal 12 , and the terminal 12 may be connected to the network-side device 11 . In practical applications, the connection between the above-mentioned various devices may be wireless connection. In order to conveniently and intuitively represent the connection relationship between the various devices, a solid line is used in FIG. 1 for illustration.

It should be noted that the above-mentioned communication system may include multiple terminals 12, and the network-side device 11 may communicate with multiple terminals 12 (transmit signaling or transmit data).

The network-side device 11 provided in this embodiment of the present invention may be a base station, and the base station may be a commonly used base station, an evolved node base station (eNB), or a network-side device in a 5G system (for example, Equipment such as next generation node base station (gNB) or transmission and reception point (transmission and reception point, TRP) or cell. Or a network-side device in a subsequent evolved communication system.

The terminal 12 provided in the embodiment of the present invention may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (Personal Digital Assistant, PDA).

Before describing the synchronization signal block receiving method, sending method, terminal, and network-side device in the embodiment of the present invention, several key technologies related to the embodiment of the present invention are first introduced.

1. Calibration of frequency position

1.1 Numbering of spectrum resources

Spectrum resources are the basis on which wireless communication works. Numbering the spectrum resources can quickly find the corresponding spectrum resources through the numbering. Table 1 lists the numbers assigned to spectrum resources by the 3rd Generation Partnership Project Radio Access Network 4 (3GPPRAN4) group.

Table 1: Numbering of spectrum resources

Spectrum resources Numbering Frequency Range FR1,FR2 Operating Bands Band n1,n2,…nX The number of the channel frequency position (RF Channel) NR-ARFCN Frequency number of SSB (SSB) GSCN

The frequency range of the spectrum resource can be determined by numbering the spectrum resource. The New Radio Absolute Radio Frequency Channel Number (NR-ARFCN) is the number of the channel frequency position. Synchronization Raster Channel, GSCN) is the frequency number of SSB.

1.2 Frequency Range (FR)

3GPP currently defines two frequency ranges, denoted by FR1 and FR2, respectively. Specifically, FR1 represents a frequency range from 450MHz-7125MHz, and FR2 represents a frequency range from 24250MHz-52600MHz. Different frequency ranges have different RF characteristics, so they need to be distinguished.

1.3 Operating bands

By further dividing the frequency range (eg FR1, FR2), one operating band can be obtained. In NR, the representation of a frequency band consists of the letter 'n' and the frequency band number, such as frequency bands n1, n2, n3. Table 2 shows the operating frequency bands (parts) defined in FR1.

Table 2: Operating frequency bands defined in FR1

For example, in the working frequency band n1, the frequency range of the uplink is 1920MHz-1980MHz, the frequency range of the downlink is 2110MHz-2170MHz, and the supported duplex mode is FDD.

1.4 channels

By further dividing the working frequency band, each channel can be obtained. The channel can be determined by the frequency location and bandwidth of the channel center.

2. Channel raster

3GPP RAN4 divides the frequency resources into 3 segments, please refer to Table 3, among them, 0-3000MHz, the frequency is numbered every 5kHz (that is, the global frequency grid of the 0-3000MHz band is 5kHz), the starting frequency is 0MHz, The corresponding number is 0, the number range of NR-ARFCN is 0-599999; 3000-24250MHz, this frequency is numbered every 15kHz (that is, the global frequency grid of the 3000-24250MHz band is 15kHz), the starting frequency of the number is 3000MHz, the corresponding number is 600000, the number range of NR-ARFCN is 600000-2016666; 24250-100000MHz, this frequency is numbered every 60kHz (that is, the global frequency grid of the 24250-100000MHz frequency band is 60kHz), the start of the numbering The frequency is 24250.08MHz, the corresponding number is 2016667, and the number range of NR-ARFCN is 2016667-3279165.

Table 3: Calibration of 0-100000MHz spectrum

Please refer to FIG. 2 , which is a schematic diagram of a method for determining the number of NR-ARFCN in the 0-3000MHz frequency spectrum. It can be seen from FIG. 2 that every 5 kHz corresponds to an NR-ARFCN number.

The specific RF reference frequency can be calculated by numbering the spectrum resources. The specific calculation formula is as follows:

F _REF =F _ref-offs +(N _REF -N _ref-offs )

For example, for frequency number 521, first determine that its corresponding frequency range is 0-3000MHz, then the global frequency grid of this frequency range is 5kHz, the number of the starting frequency is 0, and the frequency is 0, then the formula can be calculated. The RF frequency corresponding to 521 is:

F _REF =0+5*(521-0)kHZ=2605kHZ

For the frequency number 601314, first determine that the corresponding frequency range is 3000-24250MHz, then the global frequency grid of this frequency range is 15kHz, the starting frequency is 3000MHz, and the number of the starting frequency is 600000, then the formula can be calculated. The corresponding RF frequencies of 601314 are:

F _REF =3000000+15*(601314–600000)kHZ=3019710kHz=3019.710MHz

The channel grid is defined in NR, and the base station can deploy channels on the channel grid. The channel raster may be 100kHz, 15kHz, 30kHz, 60kHz, 120kHz.

For example, in Table 4, the channel grid on band n1 is 100 kHz, the NR-ARFCN number range corresponding to the upstream frequency domain is 384000-396000, and the NR-ARFCN number range corresponding to the downstream frequency domain is 422000-434000. An NR-ARFCN number can also be used to indicate a frequency location.

Table 4: Applicable NR-ARFCN per operatingband (Applicable NR-ARFCN per operatingband)

3. Sync raster

The NR network defines a synchronization grid for 0-100 GHz, and the frequency position of the SSB on the working frequency band is SS _REF , which corresponds to GSCN. The base station may transmit the SSB on the synchronization grid. The location and calculation of GSCN in different frequency domain ranges are shown in Table 5:

Table 5: GSCN parameters for the global frequencyraster

For example, when GSCN=2, it can be concluded that N=1M=1, so the corresponding frequency position is 1250kHz.

Please refer to Table 6, which is the corresponding GSCN range of the working frequency band.

Table 6: Corresponding GSCN ranges for operating frequency bands

Please refer to FIG. 3. FIG. 3 is a method for receiving a synchronization signal block according to an embodiment of the present invention, which is applied to a terminal. The determination method includes:

Step 31: Receive the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each sub-frequency band includes a plurality of sub-channels with the same bandwidth, and a plurality of The sub-channels are arranged consecutively, each of the sub-channels contains m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged at a specified frequency interval, Among them, 1≤i≤m.

In the embodiment of the present invention, the frequency position of the SSB in the target frequency band is clarified, so that the SSB can be searched at a fixed frequency position, the complexity of the terminal searching for the SSB is reduced, and the power consumption of the terminal is reduced.

In this embodiment of the present invention, the sub-band includes at least one channel, each of the channels includes N sub-channels with the same bandwidth, a plurality of the sub-channels are arranged continuously, and N is a positive integer greater than or equal to 1. If the target frequency band is an unlicensed frequency band, the width of the sub-channel is 20 MHz, and the width of the channel in the sub-frequency band may be N*20 MHz.

In this embodiment of the present invention, optionally, the frequency position of the SSB is the center of the SSB.

In this embodiment of the present invention, if each subchannel includes only one SSB, that is, m and i are both equal to 1; if each subchannel includes multiple SSBs, that is, m is greater than 1, then i is greater than or equal to 1, less than or Any positive integer equal to M.

In this embodiment of the present invention, optionally, if the target frequency band includes an unusable frequency range, the target frequency band includes at least two consecutive sub-frequency bands that can be utilized.

Please refer to Figure 4, assuming that the frequency range of the target frequency band (for example, NR-U band nX) is F1-F2, and there is an unusable frequency range F3-F4 in this frequency band. At this time, the target frequency band F1-F2 can be Split into two consecutive available sub-bands F1-F3 and F4-F2.

Of course, in some other embodiments of the present invention, the target frequency band may also have multiple unusable frequency ranges. Please refer to FIG. 5 , assuming that the frequency range of the target frequency band (for example, NR-U band nX) is F1-F2 , there are 2 unusable frequency ranges F3-F4 and F5-F6 on this frequency band. At this time, the target frequency band F1-F2 can be divided into 3 continuous available sub-bands F1-F5, F6- F3 and F4-F2.

In this embodiment of the present invention, optionally, if the target frequency band does not include an unusable frequency range, the entire target frequency band is used as the sub-frequency band. That is to say, if the target frequency band does not include an unusable frequency range, the target frequency band is regarded as a continuous sub-band.

In the embodiment of the present invention, the frequency position of the SSB in the target frequency band may be represented in various manners, which will be described with an example below.

In some embodiments of the present invention, optionally, the frequency positions of the SSBs in the target frequency band include: the frequency positions of the SSBs in each of the sub-frequency bands.

In some embodiments of the present invention, optionally, the frequency position of the SSB of the sub-band is represented by the following parameters:

frequency positions of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the frequency positions of m SSBs in the last subchannel in the subband;

Alternatively, the frequency position of the SSB of the sub-band is represented by the following parameters:

the number of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the number of m SSBs in the last subchannel in the subband;

The number of the SSB is the frequency number of the SSB, or the number of the frequency position.

In some embodiments of the present invention, optionally, the frequency position of the SSB of the sub-band is represented in the following manner: f _start -<INTERVAL> - f _end ; where f _start is the first one of the sub-band the frequency position of the i-th SSB in the sub-channel; INTERVAL is the specified frequency interval, and f _end is the frequency position of the i-th SSB in the last sub-channel in the sub-band; or, the frequency of the sub-band The frequency position of the SSB is expressed in the following manner: N _start –<stepsize> – N _end ; wherein, N _start is the number of the i-th SSB in the first sub-channel of the sub-band; stepsize is the specified frequency interval The corresponding numbering step, N _end is the number of the ith SSB in the last sub-channel in the sub-band.

In this embodiment of the present invention, each sub-frequency band of the target frequency band may include multiple sub-channels with the same bandwidth, the multiple sub-channels are arranged continuously, and m SSB positions may be deployed in each sub-channel, where m is greater than or It is a positive integer equal to 1. The following example describes the method for defining the frequency position of the SSB in different deployment modes.

1. Only one fixed SSB position is deployed in a sub-channel, and it is deployed in the center of the sub-channel

In the embodiment of the present invention, by deploying the position of one SSB in one subchannel, the interference of adjacent channels can be reduced as much as possible.

For example, if the bandwidth of the sub-channel is 20MHz, an SSB position is deployed in the center of each 20MHz. Please refer to Figure 6. In Figure 6, CHANNEL is the sub-channel, and the black part is the unusable frequency range.

If the sub-channel contains only one first SSB, the frequency position of the first SSB is located in the center of the sub-channel, and the frequency position f ₀ of the first SSB in the first sub-channel of the sub-band is :

f ₀ =F1'+CHANNEL/2

Wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-channel.

2. Only one fixed SSB position is deployed in a sub-channel, and it is deployed at the edge of the sub-channel

In the embodiment of the present invention, by deploying the position of one SSB in one subchannel, the interference of adjacent channels can be reduced as much as possible.

For example, if the bandwidth of the subchannel is 20MHz, an SSB is deployed at the edge of each 20MHz. Please refer to Figure 7. In Figure 7, CHANNEL is the subchannel, and the black part is the unusable frequency range.

If only one second SSB is included in the sub-channel, the frequency position of the second SSB is located at the edge of the sub-channel, and the frequency position f ₁ of the second SSB in the first sub-channel of the sub-band is :

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following:

Option 1: Minimum guard band (GB1) required for the sub-channel (CHANNEL);

Option 2: the minimum guard band (GBN) required for the channel formed by the N sub-channels, where N is a positive integer;

Option 1 is selected by default.

For example, if N is 2, the minimum bandwidth required by 2*CHANNEL is GB2; if N is 3, the minimum bandwidth required by 3*CHANNEL is GB3...

BW _SSB is the SSB bandwidth, and its calculation method is BW _SSB =N _RB *12*SCS. N _RB represents the number of RBs included in the SSB, for example, 20; SCS is the subcarrier spacing of the SSB, and the default SSB SCS of NR-U is 30k.

3. Deploy 2 fixed SSB positions in a sub-channel, and deploy them at the center and edge of the sub-channel respectively

In the embodiment of the present invention, adding an SSB position in the subchannel can increase the flexibility of the initial search without significantly increasing the complexity of the initial search.

For example, if the bandwidth of the sub-channel is 20MHz, then deploy an SSB at the center and edge of each 20MHz. Please refer to Figure 8. In Figure 8, CHANNEL is the sub-channel, and the black part is the frequency range that cannot be used. .

If the subchannel includes only one first SSB and one second SSB, the frequency position of the first SSB is located at the center of the subchannel, and the frequency position of the second SSB is located at the edge of the subchannel, The frequency position f ₀ of the first SSB and the frequency position f ₁ of the second SSB in the first sub-channel of the sub-band are:

f ₀ =F1'+CHANNEL/2

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following:

Option 1: Minimum guard band required for said subchannel (GB1);

Option 2: the minimum guard band (GBN) required for the channel formed by the N sub-channels, where N is a positive integer;

Option 1: Minimum guard band (GB1) required for the sub-channel (CHANNEL);

Option 2: the minimum guard band (GBN) required for the channel formed by the N sub-channels, where N is a positive integer;

Option 1 is selected by default.

For example, if N is 2, the minimum bandwidth required by 2*CHANNEL is GB2; if N is 3, the minimum bandwidth required by 3*CHANNEL is GB3...

BW _SSB is the SSB bandwidth, and its calculation method is BW _SSB =N _RB *12*SCS. N _RB represents the number of RBs included in the SSB, for example, 20; SCS is the subcarrier spacing of the SSB, and the default SSB SCS of NR-U is 30k.

4. The position where n fixed SSBs are deployed in a sub-channel, where n is a positive integer greater than or equal to 2

If the sub-channel includes n SSBs, and n is a positive integer greater than or equal to 2, the frequency position f _j-1 of the j-th SSB in the first sub-channel of the sub-band is:

f _j-1 = f ₀ +f _shift(j-1)

Wherein, f ₀ is the frequency position of the designated SSB in the first sub-channel, and f _shift(j-1) is the frequency position of the j-th SSB in the first sub-channel and the frequency position of the designated SSB Offset between frequency positions, j is greater than or equal to 1 and less than or equal to n.

In this embodiment of the present invention, the designated SSB is one of the following:

the first SSB in the first subchannel;

an SSB deployed in the center of the first sub-channel;

an SSB deployed at the edge of the first subchannel;

SSBs deployed at any other designated location of the first subchannel.

In some embodiments of the present invention, optionally, the specified frequency interval is a fixed interval value, for example, 20 MHz, that is, the interval between the i-th SSBs in adjacent subchannels is the same.

In other embodiments of the present invention, in order to solve the offset problem, optionally, the specified frequency interval includes m frequency interval values, the m frequency interval values are used alternately in sequence, and m is a positive value greater than or equal to 2 Integer.

For example, the specified frequency interval includes three frequency interval values, namely INTERVAL1, INTERVAL2 and INTERVAL3, that is, the interval between the first subchannel of the subband and the i-th SSB in the second subchannel is INTERVAL1 , the interval between the second sub-channel and the i-th SSB in the third sub-channel is INTERVAL2, the interval between the third sub-channel and the i-th SSB in the fourth sub-channel is INTERVAL3, and the fourth sub-channel and The interval between the ith SSB in the fifth subchannel is INTERVAL1, the interval between the sixth subchannel and the ith SSB in the seventh subchannel is INTERVAL2... and so on.

Next, a method for calculating the frequency position of the SSB of the sub-band will be described.

1. The frequency position of the SSB is represented by the frequency value

The frequency position of the SSB in the sub-band is obtained in the following manner:

Step 41: Determine the frequency positions of m SSBs in the first subchannel of the subband;

Step 42: Adjust the frequency positions of the m SSBs in the first sub-channel to obtain the adjusted frequency positions of the m SSBs, and the adjusted frequency positions of the m SSBs are located in accordance with the global frequency grid. (i.e. ΔF _Global in the above-mentioned Table 3) is the frequency position of the granularity calibration, or is located at the frequency position of the SSB calibrated for the granularity according to the synchronization grid (for example, 1.44MHz in the above-mentioned Table 5);

Step 43: Adjust the specified frequency interval to obtain an adjusted specified frequency interval, where the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

Step 44: Determine the frequency positions of m SSBs in each of the sub-channels of the sub-band according to the adjusted frequency positions of the m SSBs and the adjusted designated frequency interval.

In the embodiment of the present invention, optionally, the adjusted frequency position f _0new of the SSB and the adjusted specified frequency interval INTERVAL _new are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, f _0old is the frequency position of the SSB before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, INTERVAL _old is the specified frequency interval before adjustment, and step is the global frequency grid grid or the synchronized grid.

为向下取整符号，

为向上取整符号。in,

to round down notation,

is the round-up symbol.

2. The frequency position of the SSB is numbered

The number of the SSB is the frequency number of the SSB, or the number of the frequency position.

The frequency position of the SSB in the sub-band is obtained in the following manner:

Step 51: Determine the frequency positions of m SSBs in the first subchannel of the subband;

Step 52: Calculate the number of m SSBs in the first subchannel according to the frequency positions of the m SSBs in the first subchannel;

Step 53: Determine the numbering step size corresponding to the specified frequency interval;

Step 54: Determine the numbers of m SSBs in each of the subchannels in the subband according to the numbers of the m SSBs in the first subchannel and the numbering step.

2.1. The number of the SSB is the frequency number of the SSB

The numbering GSCN _start of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f _0old is The frequency position of the ith SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

2.2. The number is the number of the frequency position

The number Nref _start of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f _0old is the frequency position of the i-th SSB in the first subchannel, and INTERVAL _old is the specified frequency interval, step is the global frequency grid of the frequency range where the target frequency band is located.

In the above embodiment of the present invention, the frequency positions of the SSBs in all the subchannels of the subband are located within the frequency range of the subband; or, the numbers of the SSBs in all the subchannels of the subband are located in the subband within the range of subband numbers.

The following describes the method for determining the frequency position of the synchronization signal block according to the embodiment of the present invention by taking an example.

Example 1

In this embodiment of the present invention, a sub-channel of a sub-band only includes a fixed frequency position of the SSB, and is deployed in the center of the sub-channel (the first SSB). For example, the sub-channel is 20 MHz, and the SSB is deployed in each 20 MHz center.

The method for determining the frequency position of the synchronization signal block in the embodiment of the present invention includes:

Step 61: Divide the target frequency band into at least one continuous available sub-band according to the unusable frequency range in the target frequency band.

As shown in Figure 6, the frequency range of the target frequency band is F1-F2, and the unusable frequency range in the middle is F3-F4. The target frequency band is divided into two consecutive sub-bands that can be used, and the two sub-bands correspond to The frequency ranges are F1-F3, F4-F2 respectively, assuming that the start frequency and stop frequency of any sub-band are F1' and F2' respectively;

Step 62: Determine the frequency position of the first SSB in the first sub-channel of each sub-band as f ₀ =F1'+CHANNEL/2;

Wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-channel;

Step 63: Determine the specified frequency interval between adjacent first SSBs. The specified frequency interval may be a fixed value, such as INTERVAL, or may include multiple frequency interval values (eg INTERVAL1, INTERVAL 2, INTERVAL3...), Multiple frequency interval values are used interchangeably with this.

Step 64: Adjust the frequency position f ₀ of the first SSB in the first sub-channel to obtain the adjusted frequency position of the first SSB, and the adjusted frequency position of the first SSB is located in accordance with the global frequency. The grid is at the frequency position of the granularity calibration, or at the frequency position of the SSB calibrated according to the synchronization grid as the granularity; the specified frequency interval is adjusted to obtain the adjusted specified frequency interval, and the adjusted specified frequency The interval is an integer multiple of the global frequency grid or the synchronization grid;

The adjusted frequency position f _0new of the first SSB and the adjusted specified frequency interval INTERVAL _new can be calculated using the following formula:

或者，

or,

或者，

or,

Wherein, f ₀ is the frequency position of the first SSB in the first sub-channel before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, and INTERVAL _old is the specified frequency before adjustment interval, step is the global frequency grid or the synchronization grid.

For example, f ₀ is calculated to be 5180MHz, and adjusted to be 5180.01MHz after being located at the frequency position calibrated according to the global frequency grid (such as 15kHz) as the granularity;

For another example, the specified frequency interval INTERVAL _old is 20MHz, which is 20.01MHz or 19.995MHz after being adjusted to an integer multiple of the global frequency grid (eg, 15kHz).

Optionally, the number of the first SSB in the first subchannel may also be calculated according to the frequency position of the first SSB in the first subchannel, and the numbering step corresponding to the specified frequency interval is calculated, and then, The number of the first SSB in each subchannel of the subband is determined according to the number of the first SSB in the first subchannel and the numbering step.

If the number of the SSB is the frequency number of the SSB; the following formula is used to calculate the number GSCN _start of the first SSB in the first subchannel and the number step size stepsize:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f ₀ is The frequency position of the first SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

If the number is the number of the frequency position; the following formula is used to calculate the number Nref _start of the first SSB in the first subchannel and the number step size stepsize:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f ₀ is the frequency position of the first SSB in the first sub-channel, and INTERVAL _old is the specified frequency interval , step is the global frequency grid of the frequency range where the target frequency band is located.

Step 65: Determine the frequency position of the first SSB in each subchannel of the subband according to the frequency position of the first SSB in the first subchannel and the specified frequency interval.

For example, if the specified frequency interval between adjacent first SSBs is INTERVAL _new , the frequency positions of the first SSBs in all sub-channels of the sub-band are:

{f _0new ,f _0new +INTERVAL _new ,f _0new +2*INTERVAL _new ,…,f _0new +N*INTERVAL _new ,…};

Among them, f _0new +N*INTERVAL _new is located in the frequency range of (F1', F2').

For example, if the specified frequency interval between adjacent first SSBs is (INTERVAL1, INTERVAL 2, INTERVAL 3), when they are used alternately in sequence, let INTERVAL 1+INTERVAL 2+INTERVAL 3=INTERVAL, then all the sub-channels of the sub-band The frequency location of the first SSB in is:

{[f _0new ,f _0new +INTERVAL1,f _0new +INTERVAL1+INTERVAL2],

【f _0new +INTERVAL,f _0new +INTERVAL1+INTERVAL,f _0new +INTERVAL1+INT ERVAL2+INTERVAL】,

【f _0new +2*INTERVAL,f _0new +INTERVAL1+2*INTERVAL,f _0new +INTERVAL1+INTERVAL2+2*INTERVAL】

...

【f _0new +N*INTERVAL,f _0new +INTERVAL1+N*INTERVAL,f _0new +INTERVAL1+INTERVAL2+N*INTERVAL】

......

}.

Step 66: Combine the frequency positions of the first SSBs in all sub-channels of all sub-frequency bands of the target frequency band to obtain all possible frequency positions of the first SSBs in the target frequency band.

When the frequency position of the SSB is represented by a number, the frequency position of the SSB may be represented in the following manner {GSCNstart-<stepsize>-GSCNend}.

Please refer to Table 7:

Table 7 Frequency location of SSB

In Table 7 above, f0 is the frequency position of the first SSB in the first sub-channel of sub-band 1 (for example, F1-F3), and f0-end is the frequency position of the first SSB in the last sub-channel of sub-band 1 , f0' is the frequency position of the first SSB in the first subchannel of subband 2 (eg F4-F2), and f0'-end is the frequency position of the first SSB in the last subchannel of subband 2.

Embodiment 2

In this embodiment of the present invention, a sub-channel of a sub-band only includes a fixed frequency position of the SSB, and is deployed at the edge of the sub-channel (the second SSB). For example, the sub-channel is 20 MHz, and the SSB is deployed at each 20 MHz center.

The method for determining the frequency position of the synchronization signal block in the embodiment of the present invention includes:

Step 71: Divide the target frequency band into at least one continuous sub-frequency band that can be used according to the unusable frequency range in the target frequency band.

As shown in Figure 7, the frequency range of the target frequency band is F1-F2, and the unusable frequency range in the middle is F3-F4. The target frequency band is divided into two consecutive sub-bands that can be used, and the two sub-bands correspond to The frequency ranges are F1-F3, F4-F2 respectively, assuming that the start frequency and stop frequency of any sub-band are F1' and F2' respectively;

Step 72: Determine the frequency position of the second SSB in the first sub-channel of each sub-band as f ₀₂ =F1'+CHANNEL-GB-BW _SSB /2;

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following:

Option 1: Minimum guard band (GB1) required for the sub-channel (CHANNEL);

Option 2: the minimum guard band (GBN) required for the channel formed by the N sub-channels, where N is a positive integer;

Option 1 is selected by default.

For example, if N is 2, the minimum bandwidth required by 2*CHANNEL is GB2; if N is 3, the minimum bandwidth required by 3*CHANNEL is GB3...

BW _SSB is the SSB bandwidth, and its calculation method is BW _SSB =N _RB *12*SCS. N _RB represents the number of RBs included in the SSB, for example, 20; SCS is the subcarrier spacing of the SSB, and the default SSB SCS of NR-U is 30k.

Step 73: Determine the specified frequency interval between adjacent second SSBs, the specified frequency interval may be a fixed value, such as INTERVAL, or may include multiple frequency interval values (eg INTERVAL1, INTERVAL 2, INTERVAL3...), Multiple frequency interval values are used interchangeably with this.

Step 74: Adjust the frequency position f ₀₂ of the second SSB in the first sub-channel to obtain the adjusted frequency position of the second SSB, and the adjusted frequency position of the second SSB is located in accordance with the global frequency. The grid is at the frequency position of the granularity calibration, or at the frequency position of the SSB calibrated according to the synchronization grid as the granularity; the specified frequency interval is adjusted to obtain the adjusted specified frequency interval, and the adjusted specified frequency The interval is an integer multiple of the global frequency grid or the synchronization grid;

The adjusted frequency position f _0new of the second SSB and the adjusted specified frequency interval INTERVAL _new can be calculated using the following formula:

或者，

or,

或者，

or,

Wherein, f ₁ is the frequency position of the second SSB in the first sub-channel before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, and INTERVAL _old is the specified frequency before adjustment interval, step is the global frequency grid or the synchronization grid.

For example, f ₁ is calculated to be 5180MHz, and adjusted to be 5180.01MHz after being located at the frequency position calibrated according to the global frequency grid (such as 15kHz) as the granularity;

For another example, the specified frequency interval INTERVAL _old is 20MHz, which is 20.01MHz or 19.995MHz after being adjusted to an integer multiple of the global frequency grid (eg, 15kHz).

Optionally, the number of the second SSB in the first subchannel may also be calculated according to the frequency position of the second SSB in the first subchannel, and the numbering step corresponding to the specified frequency interval is calculated, and then, According to the number of the second SSB in the first subchannel and the numbering step size, the number of the second SSB in all the subchannels of the subband is determined.

If the number of the SSB is the frequency number of the SSB; the following formula is used to calculate the number GSCN _start of the second SSB in the first subchannel and the number step size stepsize:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f ₁ is The frequency position of the second SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

If the number is the number of the frequency position; use the following formula to calculate the number Nref _start of the second SSB in the first subchannel and the number step size stepsize:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f ₁ is the frequency position of the second SSB in the first sub-channel, and INTERVAL _old is the specified frequency interval , step is the global frequency grid of the frequency range where the target frequency band is located.

Step 75: Determine the frequency position of the second SSB in each sub-channel of the sub-band according to the frequency position of the second SSB in the first sub-channel and the specified frequency interval.

For example, if the specified frequency interval between adjacent second SSBs is INTERVAL _new , the frequency positions of the second SSBs in all sub-channels of the sub-band are:

{f _1new ,f _1new +INTERVAL _new ,f _1new +2*INTERVAL _new ,…,f _1new +N*INTERVAL _new ,…};

Among them, f _1new +N*INTERVAL _new is located in the frequency range of (F1', F2').

For example, if the specified frequency interval between adjacent second SSBs is (INTERVAL1, INTERVAL 2, INTERVAL 3), when they are used alternately in sequence, let INTERVAL 1+INTERVAL 2+INTERVAL 3=INTERVAL, then all sub-channels in the sub-band The frequency location of the second SSB in is:

{[f _1new ,f _0new +INTERVAL1,f _1new +INTERVAL1+INTERVAL2],

[f _1new +INTERVAL,f _1new +INTERVAL1+INTERVAL,f _1new +INTERVAL1+INT ERVAL2+INTERVAL],

[f _1new +2*INTERVAL,f _1new +INTERVAL1+2*INTERVAL,f _1new +INTERVAL1+INTERVAL2+2*INTERVAL]

...

[f _1new +N*INTERVAL,f _1new +INTERVAL1+N*INTERVAL,f _1new +INTERVAL1+INTERVAL2+N*INTERVAL]

......

}.

Step 76: Combine the frequency positions of the second SSBs in all sub-channels of all sub-frequency bands of the target frequency band to obtain all possible frequency positions of the second SSB in the target frequency band.

Embodiment 3

In this embodiment of the present invention, there are two fixed frequency positions of SSBs in a subchannel of a subband, which are respectively deployed at the center (first SSB) and edge (second SSB) of the subchannel. For example, the subchannel is 20 MHz, SSBs are deployed at the center and edge of each 20MHz.

The method for determining the frequency position of the synchronization signal block in the embodiment of the present invention includes:

Step 81: Divide the target frequency band into at least one continuous sub-band that can be used according to the unusable frequency range in the target frequency band.

As shown in Figure 8, the frequency range of the target frequency band is F1-F2, and the unusable frequency range in the middle is F3-F4. The target frequency band is divided into two consecutive sub-bands that can be used, and the two sub-bands correspond to The frequency ranges are F1-F3, F4-F2 respectively, assuming that the start frequency and stop frequency of any sub-band are F1' and F2' respectively;

Step 82: Determine the frequency position of the first SSB in the first sub-channel of each sub-band as f ₀ =F1'+CHANNEL/2, and the frequency position of the second SSB as f ₁ =F1'+CHANNEL-GB- BW _SSB /2;

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following:

Option 1: Minimum guard band (GB1) required for the sub-channel (CHANNEL);

Option 2: the minimum guard band (GBN) required for the channel formed by the N sub-channels, where N is a positive integer;

Option 1 is selected by default.

For example, if N is 2, the minimum bandwidth required by 2*CHANNEL is GB2; if N is 3, the minimum bandwidth required by 3*CHANNEL is GB3...

BW _SSB is the SSB bandwidth, and its calculation method is BW _SSB =N _RB *12*SCS. N _RB represents the number of RBs included in the SSB, for example, 20; SCS is the subcarrier spacing of the SSB, and the default SSB SCS of NR-U is 30k.

Step 83: Determine the specified frequency interval between adjacent first SSBs (or second SSBs). The specified frequency interval may be a fixed value, such as INTERVAL, or may include multiple frequency interval values (eg INTERVAL1, INTERVAL2, INTERVAL). 3...), multiple frequency interval values are used alternately.

Step 84: Adjust the frequency position f ₀ of the first SSB and the frequency position f ₁ of the second SSB in the first subchannel to obtain the adjusted frequency positions of the first SSB and the second SSB. The adjusted frequency positions of the first SSB and the second SSB are located at the frequency positions calibrated according to the global frequency grid as the granularity, or at the frequency positions of the SSBs calibrated according to the synchronization grid as the granularity; Adjust to obtain an adjusted specified frequency interval, where the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

For the specific adjustment method, please refer to the contents described in step 64 and step 74 in the above embodiment.

Step 85: Determine the frequency position of the first SSB in each sub-channel of the sub-band according to the frequency position of the first SSB in the first sub-channel and the specified frequency interval; The frequency positions of the second SSBs in the subchannels and the specified frequency interval determine the frequency positions of the second SSBs in all the subchannels of the subband.

For example, if the specified frequency interval between adjacent first SSBs (or second SSBs) is INTERVAL _new , the frequency positions of SSBs in all sub-channels of the sub-band are:

{[f _0new ,f _0new +INTERVAL _new ,f _0new +2*INTERVAL _new ,…,f _0new +N*INTERVAL _new ,…];

[f _1new ,f _1new +INTERVAL _new ,f _1new +2*INTERVAL _new ,…,f _1new +N*INTERVAL _new ,…]}.

Wherein, f _0new and f _1new are the adjusted frequency positions of the first SSB and the second SSB, respectively.

f _0new +N*INTERVAL _new is located in the frequency range of (F1', F2');

f _1new +N*INTERVAL _new is in the frequency range of (F1', F2').

For example, if the specified frequency interval between adjacent first SSBs (or second SSBs) is (INTERVAL1, INTERVAL 2, INTERVAL 3) used alternately in sequence, let INTERVAL 1+INTERVAL 2+INTERVAL 3=INTERVAL, then The frequency positions of the SSBs in all subchannels of the subband are:

{[f _0new ,f _0new +INTERVAL1,f _0new +INTERVAL1+INTERVAL2],

{[f _1new ,f _1new +INTERVAL1,f _1new +INTERVAL1+INTERVAL2],

[f _0new +INTERVAL,f _0new +INTERVAL1+INTERVAL,f _0new +INTERVAL1+INT ERVAL2+INTERVAL],

[f _1new +INTERVAL,f _1new +INTERVAL1+INTERVAL,f _1new +INTERVAL1+INT ERVAL2+INTERVAL],

【f _0new +2*INTERVAL,f _0new +INTERVAL1+2*INTERVAL,f _0new +INTERVAL1+INTERVAL2+2*INTERVAL】

[f _1new +2*INTERVAL,f _1new +INTERVAL1+2*INTERVAL,f _1new +INTERVAL1+INTERVAL2+2*INTERVAL]

...

【f _0new +N*INTERVAL,f _0new +INTERVAL1+N*INTERVAL,f _0new +INTERVAL1+INTERVAL2+N*INTERVAL】

[f _1new +N*INTERVAL,f _1new +INTERVAL1+N*INTERVAL,f _1new +INTERVAL1+INTERVAL2+N*INTERVAL]

......

}.

Wherein, f _0new and f _1new are the adjusted frequency positions of the first SSB and the second SSB, respectively.

Step 86: Combine the frequency positions of SSBs in all sub-channels of all sub-frequency bands of the target frequency band to obtain the frequency positions of all possible SSBs in the target frequency band.

When the frequency position of the SSB is represented by a number, the frequency position of the SSB may be represented in the following manner {GSCNstart-<stepsize>-GSCNend}.

Please refer to Table 8:

Table 8 Frequency location of SSB

In the above Table 8, f0 is the frequency position of the first SSB in the first sub-channel of sub-band 1 (for example, F1-F3), and f0-end is the frequency position of the first SSB in the last sub-channel of sub-band 1 , f1 is the frequency position of the second SSB in the first sub-channel of sub-band 1 (eg F1-F3), f1-end is the frequency position of the second SSB in the last sub-channel of sub-band 1, f0' is The frequency position of the first SSB in the first subchannel of subband 2 (for example, F4-F2), f0'-end is the frequency position of the first SSB in the last subchannel of subband 2, and f1' is the subband The frequency position of the second SSB in the first subchannel of 2 (for example, F4-F2), and f1'-end is the frequency position of the second SSB in the last subchannel of subband 2.

Embodiment 4

In the embodiment of the present invention, a subchannel of a subband has more than two (eg n) fixed frequency positions of the SSB, for example, the subchannel is 20MHz, and the SSB is deployed at a fixed position of each 20MHz.

Step 91: According to the unusable frequency range in the target frequency band, the target frequency band is divided into at least one continuous sub-frequency band that can be used.

Step 92: Determine the frequency position f0 of the first SSB in the first subchannel of each subband, and the offset (offset) between the frequency position of the second SSB and the frequency position of the first SSB is fshift1 ; The offset between the frequency position of the third SSB and the frequency position of the first SSB is fshift2; ...

That is, the frequency position f _j-1 of the j-th SSB:

f _j-1 = f ₀ +f _shift(j-1)

Wherein, f ₀ is the frequency position of the designated SSB in the first sub-channel, f _shift(j-1) is the frequency position of the j-th SSB in the first sub-channel and the frequency position of the designated SSB Offset between frequency positions, j is greater than or equal to 1 and less than or equal to n.

Step 93: Determine the specified frequency interval between the i-th SSBs in the adjacent subchannels. The specified frequency interval may be a fixed value, such as INTERVAL, or may include multiple frequency interval values (eg INTERVAL1, INTERVAL 2, INTERVAL 3...), multiple frequency interval values are used alternately.

Step 94: Adjust the frequency positions of the n SSBs in the first subchannel to obtain the adjusted frequency positions of the n SSBs, and the adjusted frequency positions of the n SSBs are located in accordance with the global frequency grid. at the frequency position calibrated for the granularity, or at the frequency position of the SSB calibrated according to the synchronization grid as the granularity; the specified frequency interval is adjusted to obtain the adjusted specified frequency interval, and the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

For the specific adjustment method, please refer to the contents described in step 64 and step 74 in the above embodiment.

Step 95: Determine the frequency positions of n SSBs in each subchannel of the subband according to the frequency positions of the n SSBs in the first subchannel and the specified frequency interval.

For example, if the specified frequency interval between the ith SSBs in adjacent subchannels is INTERVAL, then the frequency positions of the ith SSBs in all subchannels of the subband are:

{

[f _new ,f _new +fshift1,f _new +fshift2,...],

[f _new +INTERVAL,f _new +fshift1+INTERVAL,f _new +fshift2+INTERVAL,...],}.

[f _new +N*INTERVAL,f _new +fshift1+N*INTERVAL,f _new +fshift2+N*INTERVAL,...]

......

}.

Among them, f _new +f shift-n+N*INTERVAL is located in the frequency range of (F1', F2');

f _new is the adjusted frequency position of the ith SSB.

When the frequency position of the SSB is represented by a number, the frequency position of the SSB may be represented in the following manner {GSCNstart-<stepsize>-GSCNend}.

Step 96: Combine the frequency positions of n SSBs in all sub-channels of all sub-frequency bands of the target frequency band to obtain the frequency positions of all possible SSBs in the target frequency band.

Embodiment 5

Referring to FIG. 9 , in the embodiment of the present invention, the frequency range of NR-U band n46 is 5150MHz-5925MHz, and two frequency ranges (5730-5735MHz and 5915MHz-5925MHz) in band n46 cannot be used.

In the embodiment of the present invention, the bandwidth of the sub-channel of band n46 is 20 MHz, and only one SSB is deployed every 20 MHz, and is deployed at the center of every 20 MHz, please refer to Table 9.

Table 9

In the frequency range of 5150MHz-5720MHz, a sub-channel is deployed every 20MHz from the beginning, the frequency position of the SSB on the first sub-channel is 5160.00, and the specified frequency interval between adjacent SSBs is 20.01MHz, then 5150MHz-5720MHz The frequency position of the SSB is expressed as 5160.00+N*20.01, where N is an integer from 0 to 27;

In the frequency range of 5735MHz-5925MHz, a sub-channel is deployed every 20MHz from the beginning, the frequency position of the SSB on the first sub-channel is 5745.00MHz, and the specified frequency interval between adjacent SSBs is 20.01MHz, then 5735MHz-5925MHz The frequency position of the SSB is expressed as 5745.00+M*20.01, where M is an integer from 0 to 8.

The frequency position of the SSB on the final band n46 is expressed as 5160+N*20.01, 5745.00+M*20.01, where N is an integer from 0-27 and M is an integer from 0-8.

Embodiment 6

In the embodiment of the present invention, the bandwidth of the sub-channel of band n46 is 20 MHz, and only one SSB is deployed every 20 MHz, and it is deployed in the center of every 20 MHz. It is assumed that the frequency position of the SSB in the first sub-channel is adjusted, and the adjusted The adjusted frequency position of the SSB is located at the frequency position of the SSB calibrated according to the synchronization grid (1.44MHz) granularity, and the frequency position of the SSB is given in the form of a GSCN number.

或者，

For the frequency range 5150MHz-5730MHz, the frequency position of the SSB of the first subchannel is 5160.00MHz, and the corresponding GSCN number is GSCN _start =(5160.00-3000)/1.44+7499=8999,

or,

The frequency locations of SSBs on other subchannels are as follows:

5160+20.16*27=5704.92<5730,5160+20.16*28=5725.08<5730,

GSCNend=8999+28*14=9391.

For the frequency range of 5150MHz-5730MHz, the frequency position of the SSB on it can be represented by the GSCN number: 8999-<14>-9391.

For the frequency range of 5735MH-5915MHz, the frequency position of the SSB on it can be represented by the GSCN number: 9405-<14>9517.

Embodiment 7

In the embodiment of the present invention, the bandwidth of the sub-channel of band n46 is 20MHz, and only one SSB is deployed every 20MHz, and it is deployed at the edge of every 20MHz. Please refer to Table 10:

Table 10

In the frequency range of 5150MHz-5720MHz, a sub-channel is deployed every 20MHz from the beginning, the frequency position of the SSB on the first sub-channel L is 5165.22, and the specified frequency interval between adjacent SSBs is 20.01MHz, then 5150MHz-5720MHz The frequency position of the SSB above is expressed as 5165.22+N*20.01, where N is an integer from 0 to 27;

In the frequency range of 5735MHz-5925MHz, a sub-channel is deployed every 20MHz from the beginning, the frequency position of the SSB on the first sub-channel is 5750.22MHz, and the specified frequency interval between adjacent SSBs is 20.01MHz, then 5735MHz-5925MHz The frequency position of the SSB on is expressed as 5750.22+M*20.01, where M is an integer from 0 to 8.

The frequency position of the SSB on the final band n46 is expressed as: 5165.22+N*20.01, 5750.22+M*20.01, where N is an integer from 0-27, and M is an integer from 0-8.

Embodiment 8

In the embodiment of the present invention, the bandwidth of the sub-channel of band n46 is 20MHz, and two SSBs are deployed every 20MHz, and they are respectively deployed at the center and edge of every 20MHz. Please refer to Table 11:

Table 11

The frequency position of the SSB on the final band n46 is expressed as

where N is an integer from 0-27 and M is an integer from 0-8.

The target frequency band in the embodiment of the present invention may be an unlicensed frequency band (NR-U). The current NR-U is usually in the 5GHz frequency band, and 6GHz, 7GHz or even other higher frequency bands (mm-wave) are introduced in NR-U. , the method for sending the synchronization signal block in the above-mentioned embodiment is still applicable.

Referring to FIG. 10, an embodiment of the present invention further provides a terminal 100, including:

The receiving module 101 is configured to receive the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, A plurality of the sub-channels are arranged consecutively, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is spaced according to a specified frequency arrangement, where 1≤i≤m.

Optionally, if the target frequency band includes an unusable frequency range, the target frequency band includes at least two consecutive available sub-frequency bands.

Optionally, if the target frequency band does not include an unusable frequency range, the entire target frequency band is used as the sub-band.

Optionally, the frequency positions of the SSBs in the target frequency band include: the frequency positions of the SSBs in each of the sub-frequency bands.

Optionally, the frequency position of the SSB of the sub-band is represented by the following parameters:

frequency positions of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the frequency positions of m SSBs in the last subchannel in the subband;

Alternatively, the frequency position of the SSB of the sub-band is represented by the following parameters:

the number of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the number of m SSBs in the last subchannel in the subband;

The number of the SSB is the frequency number of the SSB, or the number of the frequency position.

Optionally, the frequency position of the SSB of the sub-band is expressed in the following manner: f _start -<INTERVAL> - f _end ; where f _start is the i-th SSB in the first sub-channel of the sub-band. frequency position; INTERVAL is the specified frequency interval, and f _end is the frequency position of the i-th SSB in the last sub-channel in the sub-band; or

The frequency position of the SSB of the sub-band is represented in the following manner: N _start- <stepsize>-N _end ; wherein, N _start is the number of the i-th SSB in the first sub-channel of the sub-band; stepsize is The numbering step corresponding to the specified frequency interval, and N _end is the number of the i-th SSB in the last sub-channel in the sub-band.

Optionally, if the sub-channel contains only one first SSB, the frequency position of the first SSB is located in the center of the sub-channel, and the frequency of the first SSB in the first sub-channel of the sub-band is Position _f0 is:

f ₀ =F1'+CHANNEL/2

Wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-channel.

Optionally, if the sub-channel contains only one second SSB, the frequency position of the second SSB is located at the edge of the sub-channel, and the frequency of the second SSB in the first sub-channel of the sub-band is Position f1 is _:

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the subchannel contains only one first SSB and one second SSB, the frequency position of the first SSB is located in the center of the subchannel, and the frequency position of the second SSB is located in the subchannel. The edge of the channel, the frequency position f ₀ of the first SSB and the frequency position f ₁ of the second SSB in the first sub-channel of the sub-band are:

f ₀ =F1'+CHANNEL/2

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the sub-channel includes n SSBs, and n is a positive integer greater than or equal to 2, the frequency position f _j-1 of the j-th SSB in the first sub-channel of the sub-band is:

f _j-1 = f ₀ +f _shift(j-1)

Wherein, f ₀ is the frequency position of the designated SSB in the first sub-channel, and f _shift(j-1) is the frequency position of the j-th SSB in the first sub-channel and the frequency position of the designated SSB Offset between frequency positions, j is greater than or equal to 1 and less than or equal to n.

Optionally, the designated SSB is one of the following:

the first SSB in the first subchannel;

an SSB deployed in the center of the first sub-channel;

an SSB deployed at the edge of the first subchannel;

SSBs deployed at any other designated location of the first subchannel.

Optionally, the specified frequency interval is a fixed interval value; or

The specified frequency interval includes m frequency interval values, the m frequency interval values are used alternately in sequence, and m is a positive integer greater than or equal to 2.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Adjust the frequency positions of the m SSBs in the first sub-channel to obtain the adjusted frequency positions of the m SSBs, and the adjusted frequency positions of the m SSBs are located in the global frequency grid as the granularity calibration. at the frequency position of , or at the frequency position of the SSB calibrated according to the synchronization grid granularity;

Adjusting the specified frequency interval to obtain an adjusted specified frequency interval, where the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

According to the adjusted frequency positions of the m SSBs and the adjusted designated frequency interval, the frequency positions of the m SSBs in each of the subchannels of the sub-band are determined.

Optionally, the adjusted frequency position f _0new of the SSB and the adjusted specified frequency interval INTERVAL _new are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, f _0old is the frequency position of the SSB before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, INTERVAL _old is the specified frequency interval before adjustment, and step is the global frequency grid grid or the synchronized grid.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Calculate the numbers of m SSBs in the first subchannel according to the frequency positions of the m SSBs in the first subchannel;

determining the numbering step size corresponding to the specified frequency interval;

According to the numbers of the m SSBs in the first subchannel and the numbering step size, the numbers of the m SSBs in each of the subchannels of the subband are determined.

Optionally, the numbering of the SSB is the frequency numbering of the SSB; the numbering GSCN _start of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated using the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f _0old is The frequency position of the ith SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

Optionally, the numbering is the numbering of the frequency position; the numbering _Nrefstart of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f _0old is the frequency position of the i-th SSB in the first subchannel, and INTERVAL _old is the specified frequency interval, step is the global frequency grid of the frequency range where the target frequency band is located.

Optionally, the frequency positions of the SSBs in all the subchannels of the subband are located within the frequency range of the subband; or, the numbers of the SSBs in all the subchannels of the subband are located in the number of the subband within the range.

The terminal provided in the embodiment of the present invention can implement each process implemented by the terminal in the method embodiments of FIG. 1 to FIG. 9 , and to avoid repetition, details are not described here.

Please refer to FIG. 11, which is a schematic structural diagram of a terminal according to another embodiment of the present invention. The terminal 110 includes but is not limited to: a radio frequency unit 111, a network module 112, an audio output unit 113, an input unit 114, a sensor 115, and a display unit 116 , the user input unit 117 , the interface unit 118 , the memory 119 , the processor 1110 , and the power supply 1111 and other components. Those skilled in the art can understand that the terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than the one shown, or combine some components, or arrange different components. In the embodiment of the present invention, the terminal includes but is not limited to a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The radio frequency unit 111 is configured to receive the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each of the sub-frequency bands includes a plurality of sub-frequency bands with the same bandwidth channel, a plurality of the sub-channels are arranged consecutively, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, the i-th SSB in all the sub-channels of the sub-band is specified according to the Frequency interval arrangement, where 1≤i≤m.

In the embodiment of the present invention, the frequency position of the SSB in the target frequency band is clarified, so that the SSB can be searched at a fixed frequency position, the complexity of the terminal searching for the SSB is reduced, and the power consumption of the terminal is reduced.

The terminal provided in the embodiment of the present invention can implement each process implemented by the terminal in the method embodiments of FIG. 1 to FIG. 9 , and to avoid repetition, details are not described here.

It should be understood that, in this embodiment of the present invention, the radio frequency unit 111 can be used for receiving and sending signals during sending and receiving of information or during a call. Specifically, after receiving the downlink data from the base station, it is processed by the processor 1110; The uplink data is sent to the base station. Generally, the radio frequency unit 111 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 111 can also communicate with the network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband Internet access through the network module 112, such as helping the user to send and receive emails, browse web pages, and access streaming media.

The audio output unit 113 may convert audio data received by the radio frequency unit 111 or the network module 112 or stored in the memory 119 into audio signals and output as sound. Also, the audio output unit 113 may also provide audio output related to a specific function performed by the terminal 110 (eg, call signal reception sound, message reception sound, etc.). The audio output unit 113 includes a speaker, a buzzer, a receiver, and the like.

The input unit 114 is used to receive audio or video signals. The input unit 114 may include a graphics processor (Graphics Processing Unit, GPU) 1141 and a microphone 1142, and the graphics processor 1141 captures images of still pictures or videos obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode data is processed. The processed image frames may be displayed on the display unit 116 . The image frames processed by the graphics processor 1141 may be stored in the memory 119 (or other storage medium) or transmitted via the radio frequency unit 111 or the network module 112 . The microphone 1142 can receive sound and can process such sound into audio data. The processed audio data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 111 for output in the case of a telephone call mode.

The terminal 110 also includes at least one sensor 115, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 1161 according to the brightness of the ambient light, and the proximity sensor can turn off the display panel 1161 and/or when the terminal 110 is moved to the ear. or backlight. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (generally three axes), and can detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, The sensor 115 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared Sensors, etc., will not be repeated here.

The display unit 116 is used to display information input by the user or information provided to the user. The display unit 116 may include a display panel 1161, and the display panel 1161 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 117 may be used to receive input numerical or character information, and generate key signal input related to user settings and function control of the terminal. Specifically, the user input unit 117 includes a touch panel 1171 and other input devices 1172 . The touch panel 1171, also known as a touch screen, can collect the user's touch operations on or near it (such as the user's finger, stylus, etc., any suitable object or attachment on or near the touch panel 1171). operate). The touch panel 1171 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and then sends it to the touch controller. To the processor 1110, the command sent by the processor 1110 is received and executed. In addition, the touch panel 1171 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 1171 , the user input unit 117 may also include other input devices 1172 . Specifically, other input devices 1172 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.

Further, the touch panel 1171 can be covered on the display panel 1161. When the touch panel 1171 detects a touch operation on or near it, it transmits it to the processor 1110 to determine the type of the touch event, and then the processor 1110 determines the type of the touch event according to the touch The type of event provides corresponding visual output on display panel 1161 . Although in FIG. 11, the touch panel 1171 and the display panel 1161 are used as two independent components to realize the input and output functions of the terminal, in some embodiments, the touch panel 1171 and the display panel 1161 can be integrated to form a Realize the input and output functions of the terminal, which is not limited here.

The interface unit 118 is an interface for connecting an external device to the terminal 110 . For example, external devices may include wired or wireless headset ports, external power (or battery charger) ports, wired or wireless data ports, memory card ports, ports for connecting devices with identification modules, audio input/output (I/O) ports, video I/O ports, headphone ports, and more. The interface unit 118 may be used to receive input (eg, data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 110 or may be used between the terminal 110 and an external device transfer data.

The memory 119 may be used to store software programs as well as various data. The memory 119 may mainly include a stored program area and a stored data area, wherein the stored program area may store an operating system, an application program (such as a sound playback function, an image playback function, etc.) required for at least one function, etc.; Data created by the use of the mobile phone (such as audio data, phone book, etc.), etc. Additionally, memory 119 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 1110 is the control center of the terminal, using various interfaces and lines to connect various parts of the entire terminal, by running or executing the software programs and/or modules stored in the memory 119, and calling the data stored in the memory 119. Various functions of the terminal and processing data, so as to monitor the terminal as a whole. The processor 1110 may include one or more processing units; preferably, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs, etc., and the modem The processor mainly handles wireless communication. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1110.

The terminal 110 may also include a power supply 1111 (such as a battery) for supplying power to various components. Preferably, the power supply 1111 may be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption management through the power management system. Function.

In addition, the terminal 110 includes some unshown functional modules, which are not repeated here.

Please refer to FIG. 12 . FIG. 12 is a schematic structural diagram of a terminal according to another embodiment of the present invention. The terminal 120 includes a processor 121 and a memory 122 . In this embodiment of the present invention, the terminal 120 further includes: a computer program that is stored in the memory 122 and that can run on the processor 121. When the computer program is executed by the processor 121, the following steps are implemented:

The SSB is received at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous available sub-frequency band, each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, a plurality of the sub-channels Continuously arranged, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged at a specified frequency interval, where 1 ≤i≤m.

Optionally, if the target frequency band includes an unusable frequency range, the target frequency band includes at least two consecutive available sub-frequency bands.

Optionally, if the target frequency band does not include an unusable frequency range, the entire target frequency band is used as the sub-band.

Optionally, the frequency positions of the SSBs in the target frequency band include: the frequency positions of the SSBs in each of the sub-frequency bands.

Optionally, the frequency position of the SSB of the sub-band is represented by the following parameters:

frequency positions of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the frequency positions of m SSBs in the last subchannel in the subband;

Alternatively, the frequency position of the SSB of the sub-band is represented by the following parameters:

the number of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the number of m SSBs in the last subchannel in the subband;

The number of the SSB is the frequency number of the SSB, or the number of the frequency position.

Optionally, the frequency position of the SSB of the sub-band is expressed in the following manner: f _start -<INTERVAL> - f _end ; where f _start is the i-th SSB in the first sub-channel of the sub-band. frequency position; INTERVAL is the specified frequency interval, and f _end is the frequency position of the i-th SSB in the last sub-channel in the sub-band; or

The frequency position of the SSB of the sub-band is represented in the following manner: N _start- <stepsize>-N _end ; wherein, N _start is the number of the i-th SSB in the first sub-channel of the sub-band; stepsize is The numbering step corresponding to the specified frequency interval, and N _end is the number of the i-th SSB in the last sub-channel in the sub-band.

Optionally, if the sub-channel contains only one first SSB, the frequency position of the first SSB is located in the center of the sub-channel, and the frequency of the first SSB in the first sub-channel of the sub-band is Position _f0 is:

f ₀ =F1'+CHANNEL/2

Wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-channel.

Optionally, if the sub-channel contains only one second SSB, the frequency position of the second SSB is located at the edge of the sub-channel, and the frequency of the second SSB in the first sub-channel of the sub-band is Position f1 is _:

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the subchannel contains only one first SSB and one second SSB, the frequency position of the first SSB is located in the center of the subchannel, and the frequency position of the second SSB is located in the subchannel. The edge of the channel, the frequency position f ₀ of the first SSB and the frequency position f ₁ of the second SSB in the first sub-channel of the sub-band are:

f ₀ =F1'+CHANNEL/2

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the sub-channel includes n SSBs, and n is a positive integer greater than or equal to 2, the frequency position f _j-1 of the j-th SSB in the first sub-channel of the sub-band is:

f _j-1 = f ₀ +f _shift(j-1)

Wherein, f ₀ is the frequency position of the designated SSB in the first sub-channel, and f _shift(j-1) is the frequency position of the j-th SSB in the first sub-channel and the frequency position of the designated SSB Offset between frequency positions, j is greater than or equal to 1 and less than or equal to n.

Optionally, the designated SSB is one of the following:

the first SSB in the first subchannel;

an SSB deployed in the center of the first sub-channel;

an SSB deployed at the edge of the first subchannel;

SSBs deployed at any other designated location of the first subchannel.

Optionally, the specified frequency interval is a fixed interval value; or

The specified frequency interval includes m frequency interval values, the m frequency interval values are used alternately in sequence, and m is a positive integer greater than or equal to 2.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Adjust the frequency positions of the m SSBs in the first sub-channel to obtain the adjusted frequency positions of the m SSBs, and the adjusted frequency positions of the m SSBs are located in the global frequency grid as the granularity calibration. at the frequency position of , or at the frequency position of the SSB calibrated according to the synchronization grid granularity;

Adjusting the specified frequency interval to obtain an adjusted specified frequency interval, where the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

According to the adjusted frequency positions of the m SSBs and the adjusted designated frequency interval, the frequency positions of the m SSBs in each of the subchannels of the sub-band are determined.

Optionally, the adjusted frequency position f _0new of the SSB and the adjusted specified frequency interval INTERVAL _new are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, f _0old is the frequency position of the SSB before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, INTERVAL _old is the specified frequency interval before adjustment, and step is the global frequency grid grid or the synchronized grid.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Calculate the numbers of m SSBs in the first subchannel according to the frequency positions of the m SSBs in the first subchannel;

determining the numbering step size corresponding to the specified frequency interval;

According to the numbers of the m SSBs in the first subchannel and the numbering step size, the numbers of the m SSBs in each of the subchannels of the subband are determined.

Optionally, the numbering of the SSB is the frequency numbering of the SSB; the numbering GSCN _start of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated using the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f _0old is The frequency position of the ith SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

Optionally, the numbering is the numbering of the frequency position; the numbering _Nrefstart of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f _0old is the frequency position of the i-th SSB in the first subchannel, and INTERVAL _old is the specified frequency interval, step is the global frequency grid of the frequency range where the target frequency band is located.

Optionally, the frequency positions of the SSBs in all the subchannels of the subband are located within the frequency range of the subband; or, the numbers of the SSBs in all the subchannels of the subband are located in the number of the subband within the range.

Referring to FIG. 13 , an embodiment of the present invention further provides a method for sending a synchronization signal block, which is applied to a network side device, including:

Step 131: Send the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each sub-frequency band includes multiple sub-channels with the same bandwidth, and multiple The sub-channels are arranged consecutively, each of the sub-channels contains m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is arranged at a specified frequency interval, Among them, 1≤i≤m.

Referring to FIG. 14, an embodiment of the present invention further provides a network-side device 140, including:

The sending module 141 is configured to send the SSB at the frequency position of the SSB in the target frequency band, the target frequency band includes at least one continuous sub-frequency band that can be used, and each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, A plurality of the sub-channels are arranged consecutively, each of the sub-channels includes m SSBs, m is a positive integer greater than or equal to 1, and the i-th SSB in all the sub-channels of the sub-band is spaced according to a specified frequency arrangement, where 1≤i≤m.

Please refer to FIG. 15 . FIG. 15 is a schematic structural diagram of a network side device according to another embodiment of the present invention. The network side device 150 includes a processor 151 and a memory 152 . In this embodiment of the present invention, the network-side device 150 further includes: a computer program stored in the memory 152 and executable on the processor 151, and the computer program is executed by the processor 151 to implement the following steps: SSB is sent at the frequency position, the target frequency band includes at least one continuous sub-frequency band that can be used, each of the sub-frequency bands includes a plurality of sub-channels with the same bandwidth, a plurality of the sub-channels are arranged continuously, and each sub-frequency band is arranged continuously. The sub-channel includes m SSBs, where m is a positive integer greater than or equal to 1, and the i-th SSB in all sub-channels of the sub-band is arranged at a specified frequency interval, where 1≤i≤m.

In the above-mentioned embodiments shown in Figures 13, 14 and 15:

Optionally, if the target frequency band includes an unusable frequency range, the target frequency band includes at least two consecutive available sub-frequency bands.

Optionally, if the target frequency band does not include an unusable frequency range, the entire target frequency band is used as the sub-band.

Optionally, the frequency positions of the SSBs in the target frequency band include: the frequency positions of the SSBs in each of the sub-frequency bands.

Optionally, the frequency position of the SSB of the sub-band is represented by the following parameters:

frequency positions of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the frequency positions of m SSBs in the last subchannel in the subband;

Alternatively, the frequency position of the SSB of the sub-band is represented by the following parameters:

the number of m SSBs in the first subchannel of the subband;

the specified frequency interval;

the number of m SSBs in the last subchannel in the subband;

The number of the SSB is the frequency number of the SSB, or the number of the frequency position.

Optionally, the frequency position of the SSB of the sub-band is expressed in the following manner: f _start -<INTERVAL> - f _end ; where f _start is the i-th SSB in the first sub-channel of the sub-band. frequency position; INTERVAL is the specified frequency interval, and f _end is the frequency position of the i-th SSB in the last sub-channel in the sub-band; or

The frequency position of the SSB of the sub-band is represented in the following manner: N _start- <stepsize>-N _end ; wherein, N _start is the number of the i-th SSB in the first sub-channel of the sub-band; stepsize is The numbering step corresponding to the specified frequency interval, and N _end is the number of the i-th SSB in the last sub-channel in the sub-band.

Optionally, if the sub-channel contains only one first SSB, the frequency position of the first SSB is located in the center of the sub-channel, and the frequency of the first SSB in the first sub-channel of the sub-band is Position _f0 is:

f ₀ =F1'+CHANNEL/2

Wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-channel.

Optionally, if the sub-channel contains only one second SSB, the frequency position of the second SSB is located at the edge of the sub-channel, and the frequency of the second SSB in the first sub-channel of the sub-band is Position f1 is _:

f ₀ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the subchannel contains only one first SSB and one second SSB, the frequency position of the first SSB is located in the center of the subchannel, and the frequency position of the second SSB is located in the subchannel. The edge of the channel, the frequency position f ₀ of the first SSB and the frequency position f ₁ of the second SSB in the first sub-channel of the sub-band are:

f ₀ =F1'+CHANNEL/2

f ₁ =F1'+CHANNEL-GB-BW _SSB /2

Wherein, F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-channel, BW _SSB is the bandwidth of the SSB, and GB is selected from one of the following: the minimum guard band required by the sub-channel , or, the minimum guard band required for a channel formed by combining the N sub-channels, where N is a positive integer.

Optionally, if the sub-channel includes n SSBs, and n is a positive integer greater than or equal to 2, the frequency position f _j-1 of the j-th SSB in the first sub-channel of the sub-band is:

f _j-1 = f ₀ +f _shift(j-1)

Wherein, f ₀ is the frequency position of the designated SSB in the first sub-channel, and f _shift(j-1) is the frequency position of the j-th SSB in the first sub-channel and the frequency position of the designated SSB Offset between frequency positions, j is greater than or equal to 1 and less than or equal to n.

Optionally, the designated SSB is one of the following:

the first SSB in the first subchannel;

an SSB deployed in the center of the first sub-channel;

an SSB deployed at the edge of the first subchannel;

SSBs deployed at any other designated location of the first subchannel.

Optionally, the specified frequency interval is a fixed interval value; or

The specified frequency interval includes m frequency interval values, the m frequency interval values are used alternately in sequence, and m is a positive integer greater than or equal to 2.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Adjust the frequency positions of the m SSBs in the first sub-channel to obtain the adjusted frequency positions of the m SSBs, and the adjusted frequency positions of the m SSBs are located in the global frequency grid as the granularity calibration. at the frequency position of , or at the frequency position of the SSB calibrated according to the synchronization grid granularity;

Adjusting the specified frequency interval to obtain an adjusted specified frequency interval, where the adjusted specified frequency interval is an integer multiple of the global frequency grid or the synchronization grid;

According to the adjusted frequency positions of the m SSBs and the adjusted designated frequency interval, the frequency positions of the m SSBs in each of the subchannels of the sub-band are determined.

Optionally, the adjusted frequency position f _0new of the SSB and the adjusted specified frequency interval INTERVAL _new are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, f _0old is the frequency position of the SSB before adjustment, F _ref-offs is the starting frequency domain position of the frequency range where the target frequency band is located, INTERVAL _old is the specified frequency interval before adjustment, and step is the global frequency grid grid or the synchronized grid.

Optionally, the frequency position of the SSB in the sub-band is obtained in the following manner:

determining the frequency positions of m SSBs in the first subchannel of the subband;

Calculate the numbers of m SSBs in the first subchannel according to the frequency positions of the m SSBs in the first subchannel;

determining the numbering step size corresponding to the specified frequency interval;

According to the numbers of the m SSBs in the first subchannel and the numbering step size, the numbers of the m SSBs in each of the subchannels of the subband are determined.

Optionally, the numbering of the SSB is the frequency numbering of the SSB; the numbering GSCN _start of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated using the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the serial number of the starting frequency domain position of the frequency range where the target frequency band is located, GSCN _ref-offs is the serial number of the starting synchronization signal block frequency domain position of the frequency range where the target frequency band is located, and f _0old is The frequency position of the ith SSB in the first subchannel, INTERVAL _old is the specified frequency interval, and step is the synchronization grid of the frequency range where the target frequency band is located.

Optionally, the numbering is the numbering of the frequency position; the numbering _Nrefstart of the i-th SSB in the first subchannel and the numbering step size stepsize are calculated by the following formula:

或者，

or,

或者，

or,

Wherein, F _ref-offs is the number of the starting frequency domain position of the frequency range where the target frequency band is located, f _0old is the frequency position of the i-th SSB in the first subchannel, and INTERVAL _old is the specified frequency interval, step is the global frequency grid of the frequency range where the target frequency band is located.

Optionally, the frequency positions of the SSBs in all the subchannels of the subband are located within the frequency range of the subband; or, the numbers of the SSBs in all the subchannels of the subband are located in the number of the subband within the range.

Embodiments of the present invention further provide a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, each process of the foregoing method for sending a synchronization signal block is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium is, for example, a read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes the element.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present invention can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk, CD), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present invention.

The embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of the present invention, without departing from the spirit of the present invention and the scope protected by the claims, many forms can be made, which all belong to the protection of the present invention.

Claims (24)

1. A method for receiving a synchronization signal block, applied to a terminal, includes:

receiving SSBs at the frequency positions of the SSBs in a target frequency band, wherein the target frequency band comprises at least one continuous sub-frequency band which can be utilized, each sub-frequency band comprises a plurality of sub-channels with the same bandwidth, the sub-channels are continuously arranged, each sub-channel comprises m SSBs, m is a positive integer greater than or equal to 1, the ith SSBs in all sub-channels of the sub-frequency band are arranged according to a specified frequency, and i is greater than or equal to 1 and is less than or equal to m.

2. The method of claim 1,

if the target frequency band comprises an unavailable frequency range, the target frequency band comprises at least two continuous available sub-frequency bands.

3. The method of claim 1,

and if the target frequency band does not comprise the frequency range which cannot be utilized, the whole block of the target frequency band is used as the sub-frequency band.

4. The method of claim 1, wherein the frequency location of the SSB in the target frequency band comprises: the frequency location of the SSB for each of the sub-bands.

5. The method of claim 4,

the frequency location of the SSB of the sub-band is represented by the following parameters:

frequency locations of m SSBs in a first subchannel of the frequency sub-band;

the specified frequency interval;

frequency locations of m SSBs in a last subchannel in the frequency sub-band;

or, the frequency position of the SSB of the sub-band is represented by the following parameters:

numbering m SSBs in a first subchannel of the frequency sub-band;

the specified frequency interval;

numbering m SSBs in the last subchannel in the frequency sub-band;

the number of the SSB is a frequency number of the SSB, or a number of a frequency location.

6. The method of claim 4,

the frequency location of the SSB of the sub-band is represented in the following way: f. of_start–<INTERVAL>–f_end； wherein ,f_startThe frequency position of the ith SSB in the first sub-channel of the sub-frequency band; interval is the specified frequency INTERVAL, f_endIs the frequency position of the ith SSB in the last sub-channel in the sub-band;

or ,

the frequency location of the SSB of the sub-band is represented in the following way: n is a radical of_start–<stepsize>–N_end； wherein ,N_startNumbering the ith SSB in the first sub-channel of the sub-band; stepsize is the number step length corresponding to the specified frequency interval, N_endNumbering the ith SSB in the last sub-channel in the sub-band.

7. The method of any one of claims 1 to 6,

if the sub-channel only comprises one first SSB, the frequency position of the first SSB is located at the center of the sub-channel, and the frequency position f of the first SSB in the first sub-channel of the sub-band₀Comprises the following steps:

f₀＝F1’+CHANNEL/2

wherein, F1' is the starting frequency position of the sub-band, and CHANNEL is the bandwidth of the sub-CHANNEL.

8. The method of any one of claims 1 to 6,

if the sub-channel only comprises a second SSB, the frequency position of the second SSB is located at the edge of the sub-channel, and the frequency position f of the second SSB in the first sub-channel of the sub-band₁Comprises the following steps:

f₁＝F1’+CHANNEL-GB-BW_SSB/2

wherein F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-CHANNEL, BW_SSBFor the bandwidth of the SSB, GB is selected from one of: the minimum guard band required by the sub-channels, or the minimum guard band required by the channel formed by combining N sub-channels, wherein N is a positive integer.

9. The method of any one of claims 1 to 6,

if the sub-channel only comprises a first SSB and a second SSB, the frequency location of the first SSB is located at the center of the sub-channel, the frequency location of the second SSB is located at the edge of the sub-channel, and the frequency location f of the first SSB in the first sub-channel of the sub-band is located at the edge of the sub-channel₀And frequency location f of the second SSB₁Comprises the following steps:

f₀＝F1’+CHANNEL/2

f₁＝F1’+CHANNEL-GB-BW_SSB/2

wherein F1' is the starting frequency position of the sub-band, CHANNEL is the bandwidth of the sub-CHANNEL, BW_SSBFor the bandwidth of the SSB, GB is selected from one of: the minimum guard band required by the sub-channels, or the minimum guard band required by the channel formed by combining N sub-channels, wherein N is a positive integer.

10. The method of any one of claims 1 to 6,

if the sub-channel comprises n SSBs, where n is a positive integer greater than or equal to 2, the frequency position f of the jth SSB in the first sub-channel of the sub-band_j-1Comprises the following steps:

f_j-1＝f₀+f_shift(j-1)

wherein ,f₀For the frequency location of the designated SSB in the first sub-channel, f_shift(j-1)And j is the offset between the frequency position of the jth SSB in the first sub-channel and the frequency position of the designated SSB, and is greater than or equal to 1 and less than or equal to n.

11. The method of claim 10, wherein the specified SSB is one of:

a first SSB in the first sub-channel;

an SSB deployed in the center of the first sub-channel;

an SSB deployed at an edge of the first subchannel;

and the SSBs are deployed at other arbitrary designated positions of the first sub-channel.

12. The method of claim 1,

the specified frequency interval is a fixed interval value; or

The specified frequency interval comprises m frequency interval values, the m frequency interval values are sequentially and alternately used, and m is a positive integer greater than or equal to 2.

13. The method of any of claims 1-6, wherein the frequency location of the SSB in the sub-band is obtained by:

determining frequency positions of m SSBs in a first sub-channel of the sub-band;

adjusting the frequency positions of the m SSBs in the first sub-channel to obtain adjusted frequency positions of the m SSBs, wherein the adjusted frequency positions of the m SSBs are located at frequency positions calibrated according to a global frequency grid as granularity, or at frequency positions of the SSBs calibrated according to a synchronous grid as granularity;

adjusting the specified frequency interval to obtain an adjusted specified frequency interval, wherein the adjusted specified frequency interval is an integral multiple of the global frequency grid or the synchronous grid;

and determining the frequency positions of the m SSBs in each sub-channel of the sub-frequency band according to the adjusted frequency positions of the m SSBs and the adjusted specified frequency interval.

14. The method of claim 13, wherein the adjusted frequency location f of the SSB_0newAnd the adjusted specified frequency INTERVAL INTERVAL_newCalculated by the following formula:

or ,

or ,

wherein ,f_0oldFor the frequency location of the SSB before adjustment, F_ref-offsIs the initial frequency domain position of the frequency range in which the target frequency band is positioned, INTERVAL_oldStep is the global frequency grid or the synchronization grid for the specified frequency interval before adjustment.

15. The method of any of claims 1-6, wherein the frequency location of the SSB in the sub-band is obtained by:

determining frequency positions of m SSBs in a first sub-channel of the sub-band;

calculating the numbers of the m SSBs in the first sub-channel according to the frequency positions of the m SSBs in the first sub-channel;

determining a numbering step corresponding to the specified frequency interval;

and determining the numbers of the m SSBs in each sub-channel of the sub-band according to the numbers of the m SSBs in the first sub-channel and the number step.

16. The method of claim 15, wherein the number of SSBs is a frequency number of SSBs; numbering GSCN of ith SSB in said first sub-channel_startAnd the numbering step size stepsize is calculated by adopting the following formula:

or ,

or ,

wherein ,F_ref-offsNumbering the initial frequency domain position of the frequency range of the target frequency band, GSCN_ref-offsNumbering the frequency domain positions of the initial synchronization signal blocks in the frequency range of the target frequency band, f_0oldFor the frequency position of the ith SSB in the first sub-channel, INTERVAL_oldAnd step is the synchronous grid of the frequency range of the target frequency band for the specified frequency interval.

17. The method of claim 15, wherein the number is a number of frequency locations; number Nref of ith SSB in the first sub-channel_startAnd the numbering step size stepsize is calculated by adopting the following formula:

or ,

or ,

wherein ,F_ref-offsNumbering the initial frequency domain position of the frequency range in which the target frequency band is located, f_0oldFor the frequency position of the ith SSB in the first sub-channel, INTERVAL_oldAnd step is the global frequency grid of the frequency range where the target frequency band is located for the specified frequency interval.

18. The method of claim 4,

the frequency positions of the SSBs in all sub-channels of the sub-band lie within the frequency range of the sub-band;

or

The numbering of the SSBs in all sub-channels of the sub-band is within the numbering range of the sub-band.

19. A method for sending a synchronization signal block is applied to a network side device, and is characterized by comprising the following steps:

the method comprises the steps of sending the SSB at the frequency position of the SSB in a target frequency band, wherein the target frequency band comprises at least one continuous sub-frequency band which can be utilized, each sub-frequency band comprises a plurality of sub-channels with the same bandwidth, the sub-channels are continuously arranged, each sub-channel comprises m SSBs, m is a positive integer which is larger than or equal to 1, the ith SSB in all the sub-channels of the sub-frequency band is arranged according to a specified frequency interval, and i is larger than or equal to 1 and is smaller than or equal to m.

20. A terminal, comprising:

the receiving module is configured to receive an SSB at a frequency position of the SSB in a target frequency band, where the target frequency band includes at least one continuous sub-frequency band that can be utilized, each sub-frequency band includes a plurality of sub-channels with the same bandwidth, the plurality of sub-channels are arranged continuously, each sub-channel includes m SSBs, m is a positive integer greater than or equal to 1, the ith SSB in all sub-channels of the sub-frequency band is arranged according to a specified frequency interval, and i is greater than or equal to 1 and is less than or equal to m.

21. A network-side device, comprising:

a sending module, configured to send an SSB at a frequency position of the SSB in a target frequency band, where the target frequency band includes at least one continuous sub-frequency band that can be utilized, each sub-frequency band includes multiple sub-channels with the same bandwidth, the multiple sub-channels are arranged continuously, each sub-channel includes m SSBs, m is a positive integer greater than or equal to 1, the ith SSB in all sub-channels of the sub-frequency band is arranged according to a specified frequency interval, and i is greater than or equal to 1 and is less than or equal to m.

22. A terminal, characterized in that it comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of reception of a synchronization signal block according to any one of claims 1 to 18.

23. A network side device comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the method of transmitting a synchronization signal block as claimed in claim 19.

24. A computer-readable storage medium, characterized in that a computer program is stored on the computer-readable storage medium, which computer program, when being executed by a processor, realizes the steps of the method for receiving a synchronization signal block according to any one of claims 1 to 18, or which computer program, when being executed by a processor, realizes the steps of the method for transmitting a synchronization signal block according to claim 19.

Images