BACKGROUND

It was put forward in a recent discussion on a 3rd generation partnership project (3GPP) that some frequency bands need to use two types of subcarrier spacings (SCSs).

SUMMARY

The present disclosure generally relates to the communication technology field, and more specifically to a method and device for processing a physical broadcast channel (PBCH) bandwidth, a base station and a computer readable storage medium.

According to a first aspect of the embodiment of the disclosure, a method for processing a PBCH bandwidth is provided, which includes the following operations:

it is determined whether a current frequency band is a frequency band of a preset type, the frequency band of the preset type being capable of using two types of subcarrier spacings (SCSs);

in response to that the current frequency band is the frequency band of the preset type, a number of bits of PBCH information included in a payload of a PBCH corresponding to the current frequency band is reduced and a number of resource elements (REs) occupied by a demodulation reference signal (DMRS) in a synchronization signal block (SSB) corresponding to the current frequency is kept unchanged, or, the number of bits of the PBCH information included in the payload of the PBCH corresponding to the current frequency band is kept unchanged and the number of the REs occupied by the DMRS in the SSB corresponding to the current frequency band is reduced.

In some embodiments of the present disclosure, the operation of reducing the number of bits of PBCH information included in the payload of the PBCH corresponding to the current frequency band includes:

the PBCH information in the payload is reduced by 14-22 bits.

In some embodiments of the present disclosure, the operation of reducing the PBCH information in the payload by 14-22 bits includes:

the PBCH information in the payload is reduced by 18 bits.

In some embodiments of the present disclosure, the operation of reducing the number of the REs occupied by the DMRS in the SSB corresponding to the current frequency band includes:

the DMRS in the SSB corresponding to the current frequency band is reduced by 24-48 REs.

In some embodiments of the present disclosure, the operation of reducing the DMRS in the SSB corresponding to the current frequency band by 24-48 REs includes:

the DMRS in the SSB corresponding to the current frequency band is reduced by 36 REs.

In some embodiments of the present disclosure, the method further includes:

in response to that the current frequency band is not the frequency band of the preset type, a bandwidth of the PBCH is kept unchanged by reducing the number of bits of PBCH information included in the payload of the PBCH corresponding to the current frequency band and increasing the number of REs occupied by the DMRS in the SSB corresponding to the current frequency band.

According to a second aspect of the embodiment of the disclosure, a device for processing a PBCH bandwidth is provided, which includes the following portions:

a determining portion, configured to determine whether a current frequency band is a frequency band of a preset type, wherein the frequency band of the preset type is capable of using two types of SCSs; and

a first processing portion, configured to: if the determining portion determines that the current frequency band is the frequency band of the preset type, reduce a number of bits of PBCH information included in a payload of a PBCH corresponding to the current frequency band and keep a number of REs occupied by a DMRS in a SSB corresponding to the current frequency unchanged, or, keep the number of bits of the PBCH information included in the payload of the PBCH corresponding to the current frequency band unchanged and reduce the number of the REs occupied by the DMRS in the SSB corresponding to the current frequency band.

In some embodiments of the present disclosure, the first processing portion includes the following sub-portion:

a first reducing sub-portion, configured to reduce the PBCH information in the payload by 14-22 bits.

In some embodiments of the present disclosure, the first reducing sub-portion is configured to:

reduce the PBCH information in the payload by 18 bits.

In some embodiments of the present disclosure, the first processing portion includes the following sub-portion:

a second reducing sub-portion, configured to reduce the DMRS in the SSB corresponding to the current frequency band by 24-48 REs.

In some embodiments of the present disclosure, the second reducing sub-portion is configured to:

reduce the DMRS in the SSB corresponding to the current frequency band by 36 REs.

In some embodiments of the present disclosure, the device further includes the following portion:

a second processing portion, configured to keep, if the determining portion determines that the current frequency band is not the frequency band of the preset type, a bandwidth of the PBCH unchanged by reducing the number of bits of PBCH information included in the payload of the PBCH corresponding to the current frequency band and increasing the number of REs occupied by the DMRS in the SSB corresponding to the current frequency band.

According to a third aspect of the embodiment of the disclosure, a base station is provided, which includes:

a processor;

a memory configured to store instructions executable by the processor;

wherein the processor is configured to:

determine whether a current frequency band is a frequency band of a preset type, the frequency band of the preset type being capable of using two types of SCSs; and

in response to that the current frequency band is the frequency band of the preset type, reduce a number of bits of PBCH information included in a payload of a PBCH corresponding to the current frequency band and keep a number of REs occupied by DMRS in a SSB corresponding to the current frequency unchanged, or, keep the number of bits of the PBCH information included in the payload of the PBCH corresponding to the current frequency band unchanged and reduce the number of the REs occupied by the DMRS in the SSB corresponding to the current frequency band.

According to a fourth aspect of the embodiment of the disclosure, a computer readable storage medium is provided. The computer readable storage medium stores computer instructions that, when executed by a processor, cause the processor to implement operations of the above method for processing the PBCH bandwidth.

It is to be understood that the above general descriptions and detailed descriptions below are only exemplary and explanatory and not intended to limit the present disclosure.

