Communication method, apparatus and system

Abstract

The embodiments of the present application provide a communication method, an apparatus and a system. The method comprises: a third signaling comprises a third parameter and / or a fourth parameter, the third parameter being used for indicating at least one of the following: frequency domain resources of N sets of SBFD GBs, or frequency domain resources of N sets of SBFD uplink sub-bands, and the fourth parameter being used for indicating at least one of the following: frequency domain resources of N sets of SBFD uplink sub-bands, or frequency domain resources of N sets of SBFD downlink sub-bands. According to the embodiments of the present application, configuring the indicated frequency domain resources of SBFD uplink and downlink sub-bands and GBs can solve the resource utilization problem and the interference problem between SBFD terminals and network devices.

Description

Communication method, apparatus, and system

[0001] Cross-reference to Related Applications

[0002] This application claims priority to the Chinese Patent Application No. 202410468686.0, filed on April 17, 2024, and titled “Communication method, apparatus, and system,” the entire contents of which are incorporated herein by reference; and this application claims priority to the Chinese Patent Application No. 202410651371.X, filed on May 23, 2024, and titled “Communication method, apparatus, and system,” the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0003] The present application relates to the field of communication technology, and more particularly, to a communication method and apparatus. BACKGROUND

[0004] In a subband full duplex (SBFD) scheme of a time division duplex (TDD) system, one component carrier includes at least one subband, and the transmission direction of each subband on the same symbol can be different, that is, the transmission direction of some subbands is uplink, referred to as uplink subbands, and the transmission direction of some subbands is downlink, referred to as downlink subbands. In other words, there can be a difference between the transmission directions of different subbands within one component carrier. There can be a guard band (GB) between the uplink subbands and the downlink subbands.

[0005] Currently, the frequency domain resource configuration of the uplink and downlink subbands and the GB in the SBFD is not explicitly specified. SUMMARY

[0006] The present application provides a communication method, apparatus, and system for the frequency domain resource configuration of the uplink and downlink subbands and the GB in the SBFD.

[0007] To achieve the above-mentioned purpose, the embodiments of the present application adopt the following technical solutions:

[0008] In a first aspect, a method of communication is provided, which can be executed by a terminal device, or can be executed by a component (such as a chip, a chip system, a processor, or a circuit, etc.) for a terminal device, and the present application does not limit this.

[0009] The method comprises: receiving second signaling, wherein the second signaling comprises a first parameter or a second parameter, the first parameter is used to indicate at least one of the following: frequency domain resources of a subband full duplex (SBFD) guard band (GB), or frequency domain resources of an SBFD uplink subband, and the second parameter is used to indicate at least one of the following: frequency domain resources of the SBFD uplink subband, or frequency domain resources of an SBFD downlink subband.

[0010] With reference to the first aspect, in some implementations of the first aspect, the method can further comprise: the frequency domain resources can comprise a frequency domain location and / or a bandwidth, and thus the frequency domain resources of the SBFD GB can comprise a frequency domain location of the SBFD GB and / or a bandwidth of the SBFD GB, the frequency domain resources of the SBFD uplink subband can comprise a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD uplink subband, and the frequency domain resources of the SBFD downlink subband can comprise a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD downlink subband.

[0011] With reference to the first aspect, in some implementations of the first aspect, the method can further comprise: the bandwidth of the SBFD GB has two representation methods, one is the bandwidth of the SBFD GB directly indicated by the first parameter, and the other is a frequency interval of the adjacent SBFD uplink subband and the SBFD downlink subband indicated by the second parameter. The bandwidth of the SBFD GB is not less than a bandwidth of the SBFD GB supported by the terminal device, or the frequency interval of the adjacent SBFD uplink subband and the SBFD downlink subband indicated by the second parameter is not less than the bandwidth of the SBFD GB supported by the terminal device.

[0012] With reference to the first aspect, in some implementations of the first aspect, the method can further comprise: the bandwidth of the SBFD GB supported by the terminal device is reported through first signaling. The first signaling comprises first indication information and / or second indication information, the first indication information indicates whether the terminal device supports the capability of the SBFD GB, and the second indication information indicates the bandwidth of the SBFD GB supported by the terminal device. The bandwidth of the SBFD GB can be a minimum bandwidth of the SBFD GB supported by the terminal device.

[0013] With reference to the first aspect, in some implementations of the first aspect, the method can further comprise: the second signaling is RRC signaling.

[0014] In some implementations of the first aspect, the method further includes that the frequency domain resource of the SBFD GB indicated by the first parameter and / or the frequency domain resource of the SBFD uplink sub-band is UE-specific or cell-common, or the frequency domain resource of the SBFD uplink sub-band indicated by the second parameter and / or the frequency domain resource of the SBFD downlink sub-band is UE-specific or cell-common.

[0015] Configuring the UE-specific SBFD GB frequency domain resource, and / or the SBFD uplink sub-band frequency domain resource, and / or the SBFD downlink sub-band frequency domain resource can achieve the technical effects of improving resource configuration efficiency and reducing interference between terminal devices.

[0016] Configuring the cell-common SBFD GB frequency domain resource, and / or the SBFD uplink sub-band frequency domain resource, and / or the SBFD downlink sub-band frequency domain resource can achieve the technical effect of configuring the SBFD GB frequency domain resource, and / or the SBFD uplink sub-band frequency domain resource, and / or the SBFD downlink sub-band frequency domain resource when the network device does not receive the GB capability report of the terminal device, so as to meet the communication requirements of the SBFD terminal device.

[0017] In a second aspect, a method of communication is provided. The method can be performed by a network device, or can be performed by a component (such as a chip, a chip system, a processor, or a circuit, etc.) for a network device. The present application does not limit this.

[0018] The method includes: sending second signaling, the second signaling including a first parameter or a second parameter, the first parameter being used to indicate at least one of the following: a frequency domain resource of a sub-band full duplex (SBFD) guard band (GB), or a frequency domain resource of an SBFD uplink sub-band, the second parameter being used to indicate at least one of the following: the frequency domain resource of the SBFD uplink sub-band, or a frequency domain resource of an SBFD downlink sub-band.

[0019] In some implementations of the second aspect, the method further includes that the frequency domain resource can include a frequency domain location and / or a bandwidth, so that the frequency domain resource of the SBFD GB can include a frequency domain location of the SBFD GB and / or a bandwidth of the SBFD GB, the frequency domain resource of the SBFD uplink sub-band can include a frequency domain location of the SBFD uplink sub-band and / or a bandwidth of the SBFD uplink sub-band, and the frequency domain resource of the SBFD downlink sub-band can include a frequency domain location of the SBFD uplink sub-band and / or a bandwidth of the SBFD downlink sub-band.

[0020] In some implementations of the second aspect, in combination with the second aspect, the method can further include: the bandwidth of the SBFD GB has two representation methods, one is the bandwidth of the SBFD GB directly indicated by the first parameter, and the other is the frequency interval of the adjacent SBFD uplink sub-band and the SBFD downlink sub-band indicated by the second parameter. The bandwidth of the SBFD GB is not less than the bandwidth of the SBFD GB supported by the terminal device, or the frequency interval of the adjacent SBFD uplink sub-band and the SBFD downlink sub-band indicated by the second parameter is not less than the bandwidth of the SBFD GB supported by the terminal device.

[0021] In some implementations of the second aspect, in combination with the second aspect, the method can further include: the bandwidth of the SBFD GB supported by the terminal device is reported through the first signaling. The first signaling includes first indication information and / or second indication information, the first indication information indicates whether the terminal device supports the capability of the SBFD GB, and the second indication information indicates the bandwidth of the SBFD GB supported by the terminal device. The bandwidth of the SBFD GB can be the minimum bandwidth of the SBFD GB supported by the terminal device.

[0022] In some implementations of the second aspect, in combination with the second aspect, the method can further include: the second signaling is RRC signaling.

[0023] In some implementations of the second aspect, in combination with the second aspect, the method can further include: the frequency domain resource of the SBFD GB indicated by the first parameter and / or the frequency domain resource of the SBFD uplink sub-band is UE-specific or cell-common, or the frequency domain resource of the SBFD uplink sub-band indicated by the second parameter and / or the frequency domain resource of the SBFD downlink sub-band is UE-specific or cell-common.

[0024] In a third aspect, a capability reporting method is provided. The method can be executed by a terminal device, or can be executed by a component (such as a chip, a chip system, a processor, or a circuit, etc.) for a terminal device, and the present application does not limit this.

[0025] The method includes: sending first signaling, the first signaling including first indication information and / or second indication information, the first indication information indicating whether the terminal device supports the capability of the SBFD GB, and the second indication information indicating the bandwidth of the SBFD GB supported by the terminal device.

[0026] In some implementations of the third aspect, in combination with the third aspect, the method can further include: the reported bandwidth of the SBFD GB is the minimum bandwidth of the SBFD GB supported by the terminal device.

[0027] In some implementations of the third aspect, in combination with the third aspect, the method can further include that the reported bandwidth of the SBFD GB is related to a bandwidth of the SBFD downlink sub-band and / or a bandwidth of the SBFD uplink sub-band. For example, GB Size=Z*BW1, or GB Size=Z*BW2, or GB Size=Z*max(BW1, BW2), or GB Size=Z*min(BW1, BW2), or GB Size=Z*(BW1+BW2), where GB Size is the bandwidth of the GB, BW1 is the bandwidth of the downlink sub-band, and BW2 is the bandwidth of the uplink sub-band. BW1 can be the bandwidth of the downlink sub-band adjacent to the GB, and BW2 can be the bandwidth of the uplink sub-band adjacent to the GB. Z is a coefficient, and Z>0, for example, Z can take values of 0.8, 0.9, 0.1, 0.12, 0.13, etc.

[0028] In some implementations of the third aspect, in combination with the third aspect, the method can further include that the first indication information, when taking the first state value, indicates the capability of supporting the SBFD GB, and the first indication information, when taking the first state value, indicates the capability of not supporting the SBFD GB.

[0029] In some implementations of the third aspect, in combination with the third aspect, the method can further include that the first indication information, when present, indicates the capability of supporting the SBFD GB.

[0030] In some implementations of the third aspect, in combination with the third aspect, the method can further include that the first signaling is RRC signaling.

[0031] A fourth aspect provides a capability reporting method, which can be executed by a network device or a component (such as a chip, a chip system, a processor, or a circuit, etc.) for the network device, and the present application does not limit this.

[0032] The method includes receiving first signaling, the first signaling including first indication information and / or second indication information, the first indication information indicating whether the terminal device supports the capability of the SBFD GB, and the second indication information indicating a bandwidth of the SBFD GB supported by the terminal device.

[0033] In some implementations of the fourth aspect, in combination with the fourth aspect, the method can further include that the reported bandwidth of the SBFD GB is the bandwidth of the smallest SBFD GB supported by the terminal device.

[0034] In some implementations of the fourth aspect, in combination with the fourth aspect, the method can further include that the reported bandwidth of the SBFD GB is related to a bandwidth of the SBFD downlink sub-band and / or a bandwidth of the SBFD uplink sub-band. For example, GB Size = Z*BW1, or GB Size = Z*BW2, or GB Size = Z*max(BW1, BW2), or GB Size = Z*min(BW1, BW2), or GB Size = Z*(BW1+BW2), where GB Size is the bandwidth of the GB, BW1 is the bandwidth of the downlink sub-band, and BW2 is the bandwidth of the uplink sub-band. BW1 can be the bandwidth of the downlink sub-band adjacent to the GB, and BW2 can be the bandwidth of the uplink sub-band adjacent to the GB. Z is a coefficient, and Z>0. For example, Z can be 0.8, 0.9, 0.1, 0.12, 0.13, etc.

[0035] In some implementations of the fourth aspect, in combination with the fourth aspect, the method can further include that the first indication information, when taking the first state value, indicates the capability of supporting the SBFD GB, and the first indication information, when taking the first state value, indicates the capability of not supporting the SBFD GB.

[0036] In some implementations of the fourth aspect, in combination with the fourth aspect, the method can further include that the first indication information, when present, indicates the capability of supporting the SBFD GB.

[0037] In some implementations of the fourth aspect, in combination with the fourth aspect, the method can further include that the first signaling is RRC signaling.

[0038] A fifth aspect provides a communication method, which can be executed by a network device or a component (such as a chip, a chip system, a processor, or a circuit, etc.) for the network device, and the present application does not limit this.

[0039] The method includes: sending third signaling, the third signaling including a third parameter or a fourth parameter, the third parameter being used to indicate at least one of the following: frequency domain resources of N sets of SBFD GBs, or frequency domain resources of N sets of SBFD uplink sub-bands, and the fourth parameter being used to indicate at least one of the following: frequency domain resources of N sets of SBFD uplink sub-bands, or frequency domain resources of N sets of SBFD downlink sub-bands, N being an integer greater than or equal to 1.

[0040] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that the frequency domain resource can include a frequency domain location and / or a bandwidth, and thus the frequency domain resource of the SBFD GB can include a frequency domain location and / or a SBFD GB bandwidth, the frequency domain resource of the SBFD uplink sub-band can include a frequency domain location and / or a SBFD uplink sub-band bandwidth, and the frequency domain resource of the SBFD downlink sub-band can include a frequency domain location and / or a SBFD downlink sub-band bandwidth.

[0041] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that when N = 1, the bandwidth of the SBFD GB is not less than a maximum value in the first capability set of the SBFD terminal device.

[0042] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that the first capability set of the SBFD terminal device is predefined or determined according to a predefined rule.

[0043] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that the network device receives fourth signaling containing fourth indication information indicating a bandwidth of the SBFD GB supported by the terminal device.

[0044] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that when N is greater than 1, the network device determines at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: one of the N sets of frequency domain resources of the SBFD GB, one of the N sets of frequency domain resources of the SBFD uplink sub-band, or one of the N sets of frequency domain resources of the SBFD downlink sub-band, for data transmission with the terminal device.

[0045] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that the network device reconfigures at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: the frequency domain resource of the second SBFD GB, the frequency domain resource of the second SBFD uplink sub-band, or the frequency domain resource of the second SBFD downlink sub-band.

[0046] With reference to the fifth aspect, in some implementations of the fifth aspect, the method can further include that the fourth signaling is carried in a physical random access channel (PRACH), a message A (MsgA) physical uplink shared channel (PUSCH), or a message 3 (Msg3) PUSCH.

[0047] The configuration of multiple sets of SBFD GB frequency domain resources, and / or SBFD uplink sub-band frequency domain resources, and / or SBFD downlink sub-band frequency domain resources can achieve the technical effect that the network device can configure the SBFD GB frequency domain resources, and / or the SBFD uplink sub-band frequency domain resources, and / or the SBFD downlink sub-band frequency domain resources even when no GB capability report of the terminal device is received, and can meet the communication requirements of the SBFD terminal device.

[0048] After receiving the bandwidth of the GB reported by the terminal capability, the UE-specific SBFD GB frequency domain resources, and / or the SBFD uplink sub-band frequency domain resources, and / or the SBFD downlink sub-band frequency domain resources can be reconfigured to improve resource utilization and reduce resource waste.

[0049] In a sixth aspect, a communication method is provided. The method can be performed by a terminal device, or can be performed by a component (such as a chip, a chip system, a processor, or a circuit, etc.) for a terminal device. The present application does not limit this.

[0050] The method includes receiving third signaling including a third parameter or a fourth parameter, the third parameter being used to indicate at least one of the following: N sets of SBFD GB frequency domain resources, or N sets of SBFD uplink sub-band frequency domain resources, the fourth parameter being used to indicate at least one of the following: N sets of SBFD uplink sub-band frequency domain resources, or N sets of SBFD downlink sub-band frequency domain resources, N being an integer greater than or equal to 1.

[0051] In combination with the sixth aspect, in some implementations of the sixth aspect, the method can further include that the frequency domain resources can include frequency domain positions and / or bandwidths, and thus the SBFD GB frequency domain resources can include SBFD GB frequency domain positions and / or SBFD GB bandwidths, the SBFD uplink sub-band frequency domain resources can include SBFD uplink sub-band frequency domain positions and / or SBFD uplink sub-band bandwidths, and the SBFD downlink sub-band frequency domain resources can include SBFD downlink sub-band frequency domain positions and / or SBFD downlink sub-band bandwidths.

[0052] In combination with the sixth aspect, in some implementations of the sixth aspect, the method can further include that when N = 1, the bandwidth of the SBFD GB is not less than the maximum value in the first capability set of the SBFD terminal device.

[0053] In combination with the sixth aspect, in some implementations of the sixth aspect, the method can further include that the first capability set of the SBFD terminal device is predefined or determined according to a predefined rule.

[0054] With reference to the sixth aspect, in some implementations of the sixth aspect, the method can further include: when N = 1, if the bandwidth of the SBFD GB is less than the bandwidth of the SBFD GB supported by the terminal device, the terminal device keeps the frequency domain resource of the SBFD uplink sub-band unchanged, and determines at least one of: the frequency domain resource of the third SBFD GB, or the frequency domain resource of the third SBFD downlink sub-band.

[0055] With reference to the sixth aspect, in some implementations of the sixth aspect, the method can further include: the bandwidth of the third SBFD GB is not less than the bandwidth of the SBFD GB supported by the terminal device, and the frequency interval between the third SBFD downlink sub-band and the adjacent SBFD uplink sub-band is not less than the bandwidth of the SBFD GB supported by the terminal device.

[0056] With reference to the sixth aspect, in some implementations of the sixth aspect, the method can further include: the terminal device sends fourth signaling, the fourth signaling contains fourth indication information, and the fourth indication information indicates the bandwidth of the SBFD GB supported by the terminal device.

[0057] With reference to the sixth aspect, in some implementations of the sixth aspect, the method can further include: the fourth signaling is carried in a physical random access channel (PRACH), a message A (MsgA) physical uplink shared channel (PUSCH), or a message 3 (Msg3) PUSCH.

[0058] The seventh aspect provides a communication method, which can be executed by a network device, or can be executed by a component (such as a chip, a chip system, a processor or a circuit, etc.) for the network device, and the present application does not make any limitation in this regard.

[0059] The method comprises: sending sixth signaling, wherein the sixth signaling comprises a sixth parameter, the sixth parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the sixth parameter are common to a cell; and sending seventh signaling, wherein the seventh signaling comprises a seventh parameter, the seventh parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the seventh parameter are UE-specific. When the seventh parameter also indicates the frequency domain resources of the SBFD uplink subbands, at this time, the base station configures the UE with the frequency domain resources of the SBFD uplink subbands that are common to the cell and the frequency domain resources of the SBFD uplink subbands that are UE-specific, at this time, the frequency domain resources of the SBFD uplink subbands that are common to the cell indicated by the sixth parameter and the frequency domain resources of the SBFD uplink subbands that are UE-specific indicated by the seventh parameter are the same; or the seventh parameter only indicates the frequency domain resources of the SBFD downlink subbands and does not indicate the frequency domain resources of the SBFD uplink subbands, at this time, there are no two frequency domain resources of the SBFD uplink subbands. The frequency domain resources of the SBFD downlink subbands indicated by the seventh parameter are UE-specific.

[0060] With reference to the seventh aspect, in some implementations of the seventh aspect, the method can further comprise that the sixth signaling is carried in a system information block (SIB), for example, a system information block 1 (SIB1).

[0061] With reference to the seventh aspect, in some implementations of the seventh aspect, the method can further comprise that the seventh signaling is carried in an RRC.

[0062] An eighth aspect provides a communication method, which can be executed by a terminal device or a component (such as a chip, a chip system, a processor or a circuit, etc.) for a terminal device, and the present application does not make any limitation in this regard.

[0063] The method comprises: receiving sixth signaling, wherein the sixth signaling comprises a sixth parameter, the sixth parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the sixth parameter are common to a cell; receiving seventh signaling, wherein the seventh signaling comprises a seventh parameter, the seventh parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the seventh parameter are UE-specific. When the seventh parameter also indicates the frequency domain resources of the SBFD uplink subbands, at this time, the base station configures the UE with the frequency domain resources of the SBFD uplink subbands common to the cell and the frequency domain resources of the SBFD uplink subbands specific to the UE, at this time, the frequency domain resources of the SBFD uplink subbands common to the cell indicated by the sixth parameter and the frequency domain resources of the SBFD uplink subbands specific to the UE indicated by the seventh parameter are the same; or the seventh parameter only indicates the frequency domain resources of the SBFD downlink subbands, and does not indicate the frequency domain resources of the SBFD uplink subbands, at this time, there are no two frequency domain resources of the SBFD uplink subbands. The frequency domain resources of the SBFD downlink subbands indicated by the seventh parameter are UE-specific.

[0064] With reference to the eighth aspect, in some implementations of the eighth aspect, the method can further comprise that the sixth signaling is carried in a system information block (SIB).

[0065] With reference to the eighth aspect, in some implementations of the eighth aspect, the method can further comprise that the seventh signaling is carried in RRC.

[0066] The ninth aspect provides a communication method, which can be executed by a network device, or can be executed by a component (such as a chip, a chip system, a processor or a circuit, etc.) for the network device, and the present application does not make any limitation in this regard.

[0067] The method comprises: sending eighth signaling, wherein the eighth signaling comprises an eighth parameter, the eighth parameter is used to indicate frequency domain resources of SBFD uplink subbands, and the frequency domain resources of the SBFD uplink subbands indicated by the eighth parameter are common to a cell; and sending ninth signaling, wherein the ninth signaling comprises a ninth parameter, the ninth parameter is used to indicate frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD downlink subbands indicated by the ninth parameter are UE-specific. At this time, the base station configures the UE with the frequency domain resources of the SBFD uplink subbands common to the cell and the frequency domain resources of the SBFD downlink subbands specific to the UE.

[0068] In some implementations of the ninth aspect, the method further includes that the eighth signaling is carried in a system information block (SIB), such as SIB1.

[0069] In some implementations of the ninth aspect, the method further includes that the ninth signaling is carried in RRC.

[0070] The eleventh aspect provides a communication method, which can be executed by a network device, or can be executed by a component (such as a chip, a chip system, a processor or a circuit, etc.) for the network device, and the present application does not make any limitation in this regard.

[0071] The method includes: receiving eighth signaling, the eighth signaling including an eighth parameter, the eighth parameter being used to indicate frequency domain resources of an SBFD uplink subband, the frequency domain resources of the SBFD uplink subband indicated by the eighth parameter being common to a cell; and receiving ninth signaling, the ninth signaling including a ninth parameter, the ninth parameter being used to indicate frequency domain resources of an SBFD downlink subband, wherein the frequency domain resources of the SBFD downlink subband indicated by the ninth parameter being UE-specific. At this time, the base station configures the UE with both the frequency domain resources of the SBFD uplink subband common to the cell and the frequency domain resources of the SBFD downlink subband specific to the UE.

[0072] In some implementations of the tenth aspect, the method further includes that the ninth signaling is carried in a system information block (SIB), such as SIB1.

[0073] In some implementations of the tenth aspect, the method further includes that the ninth signaling is carried in RRC.

[0074] The eleventh aspect provides a communication method, which can be executed by a network device, or can be executed by a component (such as a chip, a chip system, a processor or a circuit, etc.) for the network device, and the present application does not make any limitation in this regard.

[0075] The method comprises: sending tenth signaling, wherein the tenth signaling comprises a tenth parameter, the tenth parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the tenth parameter are common to a cell; and sending eleventh signaling, wherein the eleventh signaling comprises an eleventh parameter, the eleventh parameter is used to indicate frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands, and the frequency domain resources of the SBFD uplink subbands and the frequency domain resources of the SBFD downlink subbands indicated by the eleventh parameter are UE-specific. When the eleventh parameter also indicates the frequency domain resources of the SBFD uplink subbands, at this time, the base station configures the UE with the frequency domain resources of the SBFD uplink subbands that are common to the cell and the frequency domain resources of the SBFD uplink subbands that are UE-specific, at this time, the frequency domain resources of the SBFD downlink subbands indicated by the tenth parameter and the frequency domain resources of the SBFD downlink subbands indicated by the eleventh parameter are the same; or the seventh parameter only indicates the frequency domain resources of the SBFD uplink subbands, and does not indicate the frequency domain resources of the SBFD downlink subbands, at this time, there are no two frequency domain resources of the SBFD downlink subbands. The frequency domain resources of the SBFD uplink subbands indicated by the eleventh parameter are UE-specific.

[0076] With reference to the eleventh aspect, in some implementations of the tenth aspect, the method can further comprise: the tenth signaling is carried in a system information block (SIB), for example, a system information block 1.

[0077] With reference to the eleventh aspect, in some implementations of the tenth aspect, the method can further comprise: the eleventh signaling is carried in RRC.

[0078] The twelfth aspect provides a communication method, which can be executed by a terminal device or a component (such as a chip, a chip system, a processor, or a circuit) for a terminal device, and the present application does not limit this.

[0079] The method comprises: receiving tenth signaling, wherein the tenth signaling comprises a tenth parameter, the tenth parameter is used to indicate frequency domain resources of an SBFD uplink subband and frequency domain resources of an SBFD downlink subband, and the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband indicated by the tenth parameter are common to a cell; receiving eleventh signaling, wherein the eleventh signaling comprises an eleventh parameter, the eleventh parameter is used to indicate frequency domain resources of an SBFD uplink subband and frequency domain resources of an SBFD downlink subband, and the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband indicated by the eleventh parameter are exclusive to a UE. When the eleventh parameter also indicates the frequency domain resources of the SBFD uplink subband, at this time, the base station configures the UE with the frequency domain resources of the SBFD uplink subband common to the cell and the frequency domain resources of the SBFD uplink subband exclusive to the UE, at this time, the frequency domain resources of the SBFD downlink subband indicated by the tenth parameter and the frequency domain resources of the SBFD downlink subband indicated by the eleventh parameter are the same; or the seventh parameter only indicates the frequency domain resources of the SBFD uplink subband, and does not indicate the frequency domain resources of the SBFD downlink subband, at this time, there are no two frequency domain resources of the SBFD downlink subband. The frequency domain resources of the SBFD uplink subband indicated by the eleventh parameter are exclusive to the UE.

[0080] In combination with the twelfth aspect, in some implementations of the eleventh aspect, the method can further comprise: the tenth signaling is carried in a system information block (System Information Block, SIB), for example, a system information block 1.

[0081] In combination with the twelfth aspect, in some implementations of the eleventh aspect, the method can further comprise: the eleventh signaling is carried in RRC.

[0082] The thirteenth aspect provides an apparatus. The apparatus comprises at least one processor coupled to at least one memory for storing computer programs or instructions. The at least one processor is configured to invoke and run the computer programs or instructions from the at least one memory, so that the apparatus performs the method in the first aspect to the eleventh aspect and any possible implementation manner thereof.

[0083] The fourteenth aspect provides a chip or chip system, the chip comprises a processor and a communication interface, the processor reads instructions through the communication interface, and performs the method in any possible implementation manner of the first aspect to the eleventh aspect.

[0084] The fifteenth aspect provides a computer readable storage medium, the computer readable storage medium stores computer instructions, when the computer instructions run on a computer, the method in any possible implementation manner of the first aspect to the eleventh aspect is realized.

[0085] In a sixteenth aspect, a computer program product is provided. The computer program product comprises computer program code which, when run on a computer, causes the method in any possible implementation of the first aspect to the eleventh aspect to be implemented.

[0086] In a seventeenth aspect, a communication system is provided. The communication system comprises the apparatus in the first aspect to the eleventh aspect and any possible implementation thereof. BRIEF DESCRIPTION OF DRAWINGS

[0087] Fig. 1 is a schematic diagram of an architecture of a communication system according to an embodiment of the application;

[0088] Fig. 2 is a schematic diagram of a structure of a communication apparatus according to an embodiment of the application;

[0089] Fig. 3 is a schematic diagram of a possible application framework in a communication system according to an embodiment of the application;

[0090] Fig. 4 is a schematic diagram of another possible application framework in a communication system according to an embodiment of the application;

[0091] Fig. 5 is a schematic diagram of time-frequency resource allocation in a TDD system according to an embodiment of the application;

[0092] Fig. 6 is a schematic diagram of time-frequency resource allocation in a SBFD scheme according to an embodiment of the application;

[0093] Fig. 7 is a schematic diagram of time-frequency resource allocation in another SBFD scheme according to an embodiment of the application;

[0094] Fig. 8 is a schematic diagram of different types of CLI in a SBFD scheme according to an embodiment of the application;

[0095] Fig. 9 is a schematic diagram of time-frequency resource allocation in a SBFD GB scheme according to an embodiment of the application;

[0096] Fig. 10 is a schematic diagram of time-frequency resource allocation in another SBFD GB scheme according to an embodiment of the application;

[0097] Fig. 11 is a flowchart of a frequency domain resource configuration method of uplink and downlink subbands and GBs in a SBFD according to an embodiment of the application;

[0098] Fig. 12 is a flowchart of another frequency domain resource configuration method of uplink and downlink subbands and GBs in a SBFD according to an embodiment of the application;

[0099] Fig. 13 is a flowchart of another frequency domain resource configuration method of uplink and downlink subbands and GBs in a SBFD according to an embodiment of the application;

[0100] FIG. 14 is a flow chart of a method for configuring frequency domain resources of uplink and downlink subbands and GBs of another SBFD according to an embodiment of the present application;

[0101] FIG. 15 is a flow chart of a method for configuring frequency domain resources of uplink and downlink subbands and GBs of another SBFD according to an embodiment of the present application;

[0102] FIG. 16 is a schematic diagram of an apparatus according to an embodiment of the present application. DETAILED DESCRIPTION

[0103] The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings. In the description of the present application, unless otherwise specified, " / " represents an "or" relationship between the associated objects, for example, A / B can represent A or B; in the present application, "and / or" is only a description of the associated relationship between the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent: A alone, A and B together, and B alone, where A and B can be singular or plural. In the description of the present application, unless otherwise specified, "multiple" means two or more than two. "At least one of the following" or the like means any combination of these items, including any combination of single item or multiple items. For example, at least one of a, b, or c can represent: a, b, c, a-b, a-c, b-c, or a-b-c, where a, b, and c can be single or multiple. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, the following points are explained before introducing the solutions of the present application.

[0104] (1) In the present application, "indication" can include direct indication, indirect indication, explicit indication, and implicit indication. When describing that certain indication information is used to indicate A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.

[0105] In this application, the information indicated by the indication information is referred to as to-be-indicated information. In the specific implementation process, there are many ways to indicate the to-be-indicated information, for example, but not limited to, the to-be-indicated information can be directly indicated, such as the to-be-indicated information itself or the index of the to-be-indicated information. The to-be-indicated information can also be indirectly indicated by indicating other information, wherein the other information and the to-be-indicated information have an association relationship. The to-be-indicated information can also be only indicated in part, and the other part of the to-be-indicated information is known or agreed in advance. For example, the indication of a specific information can also be achieved by means of the arrangement order of each information agreed in advance (for example, the protocol stipulates), thereby reducing the indication overhead to a certain extent. In addition, the to-be-indicated information can be sent as a whole, or can be sent separately into multiple sub-information, and the sending period and / or sending opportunity of these sub-information can be the same or different.

[0106] (2) In this application, "sending" and "receiving" represent the direction of signal transmission. For example, "sending information to XX" can be understood as that the destination of the information is XX, which can include direct sending through the air interface, or indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as that the source of the information is YY, which can include direct receiving from YY through the air interface, or indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as "output" of the chip interface, and "receiving" can also be understood as "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between network devices and terminal devices, or can be carried out within a device, for example, between components, modules, chips, software modules or hardware modules within a device through a bus, wire or interface. In addition, "transmission" includes receiving and / or sending in the case of no special description. For example, transmitting a signal can include receiving a signal and / or sending a signal.

[0107] (3) In this application, the information C used for the determination of the information D includes that the information D is determined based on the information C, and includes that the information D is determined based on the information C and other information. In addition, the information C used for the determination of the information D can also be indirectly determined, for example, the information D is determined based on the information E, and the information E is determined based on the information C.

[0108] (4) The terms "comprising" and "having" and any variations thereof are intended to cover not exclusively containing, for example, a process, method, system, product or device containing a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0109] (5) In each of the embodiments of the present application, the terms and / or descriptions among different embodiments are consistent and can be referred to each other if there is no special description and logical conflict. The technical features among different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0110] (6) In the present application, "first", "second" are only convenient for description, used for distinguishing objects, and not used for limiting the scope of the embodiments of the present application. They are not used for describing the order or sequence of features. It should be understood that the objects thus described can be interchanged under appropriate circumstances, so as to be able to describe the schemes other than the embodiments of the present application.

[0111] (7) In the present application, "exemplary" or "for example" and the like are used to mean serving as an example, an instance, or illustration. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design schemes. Rather, "exemplary" or "for example" and the like are used to present related concepts in a specific manner.

[0112] The architecture diagram of the mobile communication system shown in FIG. 1 is an architecture diagram of a communication system 1000 to which the embodiments of the present application are applied. As shown in FIG. 1, the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 can also include an Internet 300. The radio access network 100 can include at least one radio access network device (such as 110a and 110b in FIG. 1), and can also include at least one terminal device (such as 120a-120j in FIG. 1). The terminal device is connected to the radio access network device in a wireless manner, for example, the terminal device can be connected to the radio access network device through an air interface. The radio access network device is connected to the core network in a wireless or wired manner. The core network device and the radio access network device can be independent and different physical devices, can be integrated into the same physical device with the functions of the core network device and the logical functions of the radio access network device, and can also be a physical device integrated with part of the functions of the core network device and part of the functions of the radio access network device. The terminal device and the terminal device, and the radio access network device and the radio access network device can be connected to each other in a wired or wireless manner. FIG. 1 is only a schematic diagram, and the communication system can also include other network devices, such as wireless relay devices and wireless backhaul devices, which are not shown in FIG. 1.

[0113] The radio access network device is an access device through which a terminal device accesses a communication system in a wireless manner. The radio access network device can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a gNB in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, a base station in a future mobile communication system, an access node in a WiFi system, or the like. In another possible scenario, multiple radio access network (RAN) nodes cooperate to assist a terminal to implement wireless access, and different RAN nodes respectively implement part of the functions of a base station. For example, the RAN node can be a central unit (CU), a distributed unit (DU), a CU-control plane (CP), a CU-user plane (UP), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element, such as a baseband unit (BBU). The RU can be included in a radio frequency device or a radio frequency unit, such as a remote radio unit (RRU), an active antenna processing unit (AAU), or a remote radio head (RRH).

[0114] The CU (or CU-CP and CU-UP), DU or RU can also have different names in different systems, but those skilled in the art can understand their meanings. For example, in an open RAN (ORAN) system, the CU can also be referred to as an O-CU (open CU), the DU can also be referred to as an O-DU, the CU-CP can also be referred to as an O-CU-CP, the CU-UP can also be referred to as an O-CU-UP, and the RU can also be referred to as an O-RU. For the convenience of description, the CU, CU-CP, CU-UP, DU and RU are taken as examples for description in this application. Any one of the CU (or CU-CP, CU-UP), DU and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module. The embodiments of this application can be implemented by the DU or the RU. The CU here completes the functions of the radio resource control protocol and the packet data convergence protocol (PDCP) of the base station, and can also complete the function of the service data adaptation protocol (SDAP); the DU completes the functions of the radio link control layer and the medium access control layer of the base station, and can also complete the functions of part of the physical layer or the entire physical layer. For specific descriptions of the above-mentioned protocol layers, please refer to the relevant technical specifications of the 3rd generation partnership project (3GPP).

[0115] The radio access network device can be a macro base station (such as 110a in FIG. 1), a micro base station or an indoor station (such as 110b in FIG. 1), a relay node or a donor node, etc. The embodiments of this application do not limit the specific technology and specific device form adopted by the radio access network device. The embodiments of this application do not limit the specific technology and specific device form adopted by the radio access network device. For the convenience of description, the network device is taken as an abbreviation of the radio access network device, and the base station is taken as an example of the radio access network device.

[0116] The terminal device also has a wireless transceiving function, and can send a signal to a base station or receive a signal from the base station. The terminal device can also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal device, etc. The terminal device can be widely applied to various scenarios, such as environmental IOT, device-to-device (D2D), vehicle to everything (V2X) communication, machine-type communication (MTC), virtual reality, augmented reality, industrial control, automatic driving, remote medical treatment, smart power grid, smart furniture, smart office, smart wear, smart transportation, smart city, etc. The terminal device can be a mobile phone, tablet computer, computer with a wireless transceiving function, wearable device, vehicle, unmanned aerial vehicle, helicopter, airplane, ship, robot, mechanical arm, smart home device, etc. Embodiments of the present application do not limit the specific technology and specific device form of the terminal device.

[0117] The base station and the terminal device can be fixed in position or movable. The base station and the terminal device can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; can also be deployed on water; can also be deployed on an airplane, balloon, and artificial satellite. Embodiments of the present application do not limit the application scenarios of the base station and the terminal device.

[0118] The roles of the base station and the terminal device can be relative, for example, the helicopter or unmanned aerial vehicle 120i in FIG. 1 can be configured as a mobile base station, and for the terminal device 120j that accesses the wireless access network 100 through 120i, the terminal device 120i is a base station; but for the base station 110a, 120i is a terminal device, that is, 110a and 120i communicate through a wireless air interface protocol. Of course, 110a and 120i can also communicate through a base station-to-base station interface protocol, and in this case, 120i is also a base station relative to 110a. Therefore, the base station and the terminal device can be collectively referred to as a communication apparatus, 110a and 110b in FIG. 1 can be referred to as a communication apparatus with a base station function, and 120a-120j in FIG. 1 can be referred to as a communication apparatus with a terminal device function.

[0119] The base station and the terminal device, the base station and the base station, the terminal device and the terminal device can communicate through the licensed spectrum, or through the unlicensed spectrum, or through the licensed spectrum and the unlicensed spectrum simultaneously; can communicate through the spectrum below 6 gigahertz (GHz), or through the spectrum above 6 GHz, or through the spectrum below 6 GHz and the spectrum above 6 GHz simultaneously. The embodiments of the present application do not limit the spectrum resources used by the wireless communication.

[0120] In the embodiments of the present application, the functions of the base station can also be performed by a module (such as a chip) in the base station, or by a control subsystem containing the functions of the base station. The control subsystem containing the functions of the base station herein can be a control center in the above-mentioned application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal device can also be performed by a module (such as a chip or a modem) in the terminal device, or by a device containing the functions of the terminal device.

[0121] Exemplarily, the network device provided by the embodiments of the present application can be, for example, 110a or 110b in FIG. 1, and the terminal device provided by the embodiments of the present application can be, for example, any one of 120a-120j in FIG. 1.

[0122] The related functions of the network device or the terminal device involved in the present application can be implemented by one device, or by multiple devices together, or by one or more functional modules in a device, or can be one or more chips, or a system on chip (SOC) or a chip system. The chip system can be composed of a chip, or can include a chip and other discrete devices, and the embodiments of the present application do not specifically limit this.

[0123] It can be understood that the above functions can be network elements in a hardware device, or software functions running on a special hardware, or a combination of hardware and software, or virtualized functions instantiated on a platform (for example, a cloud platform).

[0124] For example, the related functions of the network device or the terminal device in the embodiments of the present application can be implemented through the communication device 110 in FIG. 2.

[0125] Figure 2 shows a structural diagram of a possible communication apparatus 110. It can be understood that the communication apparatus 110 comprises necessary forms of means, such as modules, units, elements, circuits, or interfaces, etc., which are configured to be appropriately arranged together to perform the present solution. The communication apparatus 110 can be a network device or a terminal device, or a component (e.g., a chip) of these devices, to implement the methods described in the following method embodiments. The communication apparatus 110 comprises one or more processors 111. The processor 111 can be a general processor or a special purpose processor, etc. For example, it can be a baseband processor or a central processing unit. The baseband processor can be configured to process communication protocols and communication data, and the central processing unit can be configured to control the communication apparatus (e.g., a network device, a terminal device, or a chip, etc.), execute software programs, and process data of the software programs.

[0126] Optionally, in one design, the processor 111 can comprise a program 113 (which can also be referred to as code or instructions at times) that can be run on the processor 111, so that the communication apparatus 110 performs the methods described in the following embodiments. In another possible design, the communication apparatus 110 comprises a circuit (not shown in Figure 2).

[0127] Optionally, the communication apparatus 110 can comprise one or more memories 112, which have a program 114 (which can also be referred to as code or instructions at times) stored thereon, and the program 114 can be run on the processor 111, so that the communication apparatus 110 performs the methods described in the following embodiments.

[0128] Optionally, the processor 111 and / or the memory 112 can comprise an artificial intelligence (AI) module 117, 118, which is configured to implement AI-related functions. The AI module can be implemented in a software, hardware, or software-hardware combined manner. For example, the AI module can comprise a RAN intelligence controller (RIC) module. For example, the AI module can be a near-real-time RIC or a non-real-time RIC.

[0129] Optionally, the processor 111 and / or the memory 112 can also store data. The processor and the memory can be separately arranged, or integrated together.

[0130] Optionally, the communication device 110 can further include a transceiver 115 and / or an antenna 116. The processor 111 can also be referred to as a processing unit, which controls the communication device (e.g., a network device or a terminal device). The transceiver 115 can also be referred to as a transceiving unit, a transceiver, a transceiving circuit, or a transceiver, etc., which implements the transceiving function of the communication device through the antenna 116.

[0131] In addition, the constituent structure shown in FIG. 2 does not constitute a limitation on the communication device, and the communication device can include more or fewer components than those shown in FIG. 2, or combine some components, or different component arrangements, in addition to the components shown in FIG. 2.

[0132] In order to support AI technology in a wireless network, AI nodes can also be introduced in the network.

[0133] Optionally, the AI nodes can be deployed in one or more of the following positions in the communication system: a radio access network device, a terminal device, or a core network device, etc., or the AI nodes can also be deployed separately, for example, in a position other than any of the above devices, such as a host or a cloud server of an over the top (OTT) system. The AI nodes can communicate with other devices in the communication system, which can be one or more of the following: a network device, a terminal device, or a network element of a core network, etc.

[0134] It can be understood that the present application does not limit the number of AI nodes. For example, when there are multiple AI nodes, the multiple AI nodes can be divided based on functions, such as different AI nodes being responsible for different functions.

[0135] It can also be understood that the AI nodes can be independent devices, can be integrated into the same device to implement different functions, or can be network elements in a hardware device, or software functions running on a dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform), and the present application does not limit the specific form of the AI nodes.

[0136] The AI nodes can be AI network elements or AI modules.

[0137] FIG. 3 is a schematic diagram of a possible application framework in a communication system. As shown in FIG. 3, network elements in the communication system are connected through interfaces (e.g., NG, Xn, Fl) or air interfaces. One or more AI modules (only one is shown in FIG. 3 for clarity) are deployed in one or more of the network element nodes, such as one or more of the core network devices, access network nodes (RAN nodes), terminals, or operation administration and maintenance (OAM) devices. The access network node can be a single RAN node or can include multiple RAN nodes, e.g., including a CU and a DU. The CU and / or the DU can also be deployed with one or more AI modules. Optionally, the CU can be further split into a CU-CP and a CU-UP. One or more AI modules are deployed in the CU-CP and / or the CU-UP.

[0138] The AI module is configured to implement a corresponding AI function. AI modules deployed in different network elements can be the same or different. An AI module can implement different functions according to different parameter configurations of the model of the AI module. The model of the AI module can be configured based on one or more of the following parameters: a structural parameter (e.g., at least one of a number of neural network layers, a width of a neural network, a connection relationship between layers, a weight of a neuron, an activation function of a neuron, or a bias in the activation function), an input parameter (e.g., a type of the input parameter and / or a dimension of the input parameter), or an output parameter (e.g., a type of the output parameter and / or a dimension of the output parameter). The bias in the activation function can also be referred to as a bias of the neural network.

[0139] An AI module can have one or more models. A model can infer an output including one parameter or multiple parameters. The learning process, the training process, or the inference process of different models can be deployed in different nodes or devices, or can be deployed in the same node or device.

[0140] Fig. 4 is a schematic diagram of another possible application framework in a communication system. As shown in Fig. 4, a RAN intelligent controller (RIC) is included in the communication system. For example, the RIC can be the AI module 117, 118 shown in Fig. 4, which is configured to implement AI-related functions. The RIC includes a near-real time RIC (near-RT RIC) and a non-real time RIC (Non-RT RIC). The non-real time RIC is mainly configured to process non-real time information, such as data that is not sensitive to latency, which can be in the order of seconds. The real time RIC is mainly configured to process near-real time information, such as data that is relatively sensitive to latency, which can be in the order of tens of milliseconds.

[0141] The near-real time RIC is configured to perform model training and inference. For example, the near-real time RIC is configured to train an AI model and perform inference using the AI model. The near-real time RIC can obtain network side and / or terminal side information from a RAN node (e.g., a CU, a CU-CP, a CU-UP, a DU, and / or a RU) and / or a terminal. The information can be used as training data or inference data. Optionally, the near-real time RIC can deliver inference results to the RAN node and / or the terminal. Optionally, the inference results can be exchanged between the CU and the DU, and / or between the DU and the RU. For example, the near-real time RIC delivers the inference results to the DU, which then delivers the inference results to the RU.

[0142] The non-real time RIC is also configured to perform model training and inference. For example, the non-real time RIC is configured to train an AI model and perform inference using the AI model. The non-real time RIC can obtain network side and / or terminal side information from a RAN node (e.g., a CU, a CU-CP, a CU-UP, a DU, and / or a RU) and / or a terminal. The information can be used as training data or inference data, and the inference results can be delivered to the RAN node and / or the terminal. Optionally, the inference results can be exchanged between the CU and the DU, and / or between the DU and the RU. For example, the non-real time RIC delivers the inference results to the DU, which then delivers the inference results to the RU.

[0143] The near-real time RIC and the non-real time RIC can also be separately configured as a network element. Alternatively, the near-real time RIC and the non-real time RIC can also be part of other devices. For example, the near-real time RIC can be configured in a RAN node (e.g., a CU, a DU), and the non-real time RIC can be configured in an OAM, a cloud server, a core network device, or another network device.

[0144] Embodiments of the present application can be applied to a 5G new radio (NR) wireless communication system, and high data rate and low latency are achieved by using a large bandwidth. In a time division duplex system, as shown in FIG. 5, DL usually occupies the main time resource, which causes coverage imbalance between DL and UL. Compared with a frequency division duplex (FDD) system, the uplink coverage of a TDD system is poorer and the delay is larger.

[0145] To solve the problems of uplink coverage and uplink delay in a TDD system, the SBFD scheme is proposed in the R18 standard. In the SBFD scheme, one component carrier (CC) can include multiple subbands, and the transmission directions of different subbands can be different.

[0146] For example, FIG. 6 is a schematic diagram of time-frequency resource allocation in an SBFD scheme. On the three time units in the middle, one carrier can be divided into three subbands, the middle subband is an uplink subband that can be used for uplink transmission, and is identified as UL in the figure. The upper and lower subbands are downlink subbands that can be used for downlink transmission, and are identified as DL in the figure.

[0147] Among them, the upper subband refers to the subband with a higher frequency, the lower subband refers to the subband with a lower frequency, and the middle subband refers to the subband with a frequency between the frequency of the upper subband and the frequency of the lower subband. The first or last time unit can be referred to as a non-SBFD time unit, and any time unit in the middle can be referred to as an SBFD time unit. The time unit may, for example, be a time slot or a symbol.

[0148] For another example, FIG. 7 is a schematic diagram of time-frequency resource allocation in an SBFD scheme. On the three time units in the middle, one carrier can be divided into two subbands, the upper subband is a downlink subband that can be used for downlink transmission, and is identified as DL in the figure. The lower subband is an uplink subband that can be used for uplink transmission, and is identified as UL in the figure.

[0149] It can be considered that in the SBFD scheme, on the SBFD time unit, the network device can implement simultaneous sending and receiving of signals through different frequency domain resources or subbands. At present, in the R19 standard, the network device can adopt a subband full-duplex scheme, and the terminal device can adopt a subband half-duplex scheme. The terminal device adopts a subband half-duplex scheme, which means that the terminal device can only receive or send signals on the SBFD time unit, and cannot simultaneously receive and send signals.

[0150] For the time domain configuration of SBFD, there are two possible configuration manners according to whether SBFD symbols and non-SBFD symbols are contained in one time slot at the same time. In one possible configuration manner, the time domain configuration of SBFD is time slot level, that is, the symbols contained in one time slot are configured as SBFD symbols or non-SBFD symbols. In another possible configuration manner, the time domain configuration of SBFD is symbol level, that is, the symbols contained in one time slot can be configured as SBFD symbols or non-SBFD symbols. Embodiments of the present application do not make any limitation on the time domain configuration manner of SBFD. The SBFD symbol can be a symbol configured with SBFD operation, and the non-SBFD symbol can be a symbol without SBFD operation. For uplink transmission, the non-SBFD symbol can be an uplink symbol or a flexible symbol; for downlink transmission, the non-SBFD symbol can be a downlink symbol or a flexible symbol.

[0151] Compared with the TDD system, in the SBFD scheme, the available uplink transmission resources of the terminal device are increased. Therefore, the SBFD scheme can effectively improve the uplink coverage and reduce the uplink delay.

[0152] In the SBFD scheme, because the signal power in one sub-band will leak into the adjacent other sub-bands, cross link interference (CLI) between UL and DL will be caused. According to the source of the interference, the CLI can be divided into the following two types:

[0153] 1) Type 1, UE-to-UE CLI.

[0154] The UE-to-UE CLI refers to the interference caused by the uplink signal sent by one UE in the cell to the downlink signal received by another UE in the cell or the adjacent cell. For example, in FIG. 8, the interference caused by the uplink signal sent by UE#1 or UE#2 to the downlink signal received by UE#0 from gNB#0 can be referred to as UE-to-UE CLI. Embodiments of the present application mainly measure and report the UE-to-UE CLI.

[0155] 2) Type 2, gNB-to-gNB CLI.

[0156] A gNB-to-gNB CLI refers to the interference caused by the downlink signal transmitted by one base station to the uplink signal received by another base station. For example, in FIG. 8, the interference caused by the downlink signal transmitted by gNB#0 to UE#0 to the uplink signal received by gNB#1 from UE#1 or UE#2 can be referred to as a gNB-to-gNB CLI.

[0157] In the UE-to-UE CLI measurement and reporting mechanism, one UE transmits a sounding reference signal (SRS) to its serving gNB, and another UE, which resides in the same cell or a neighboring cell, measures the SRS and reports the measurement result to the serving cell of the other UE. As shown in FIG. 8, UE#1 can transmit an SRS to gNB#1. UE#0 can measure the SRS transmitted by UE#1 and send the measurement result to gNB#0, or UE#2 can measure the SRS transmitted by UE#1 and send the measurement result to gNB#1. The measurement indicators can include SRS-reference signal receiving power (RSRP) and / or CLI-received signal strength indication (RSSI).

[0158] For a dynamic TDD system, the R16 standard defines a layer (L) 3 level UE-to-UE CLI (hereinafter referred to as “L3 UE-to-UE CLI”) measurement and reporting mechanism. The L3 UE-to-UE CLI measurement and reporting mechanism refers to the UE-to-UE CLI measurement and reporting performed at the radio resource control (RRC) protocol layer level. For example, RRC signaling can trigger UE-to-UE CLI measurement, and RRC signaling can be used for measurement result reporting.

[0159] For the SBFD scheme, the L1 or L2 level UE-to-UE CLI (hereinafter referred to as "L1 / L2 UE-to-UE CLI") measurement and reporting mechanism is introduced in the R19 standard. The measurement and reporting mechanism refers to the UE-to-UE CLI measurement and reporting at the physical layer or data link layer level. For example, the downlink control information (DCI) or MAC control element (CE) can trigger the UE-to-UE CLI measurement, and the measurement results can be reported through the uplink physical shared channel (PUSCH) and / or uplink physical control channel (PUCCH). Compared with the L3 UE-to-UE CLI measurement and reporting mechanism, the L1 / L2 UE-to-UE CLI measurement and reporting mechanism is more flexible, and the measurement and reporting delay is shorter, so that it can better track the UE-to-UE CLI changes, making the measurement results more accurate, and thus facilitating better elimination of UE-to-UE CLI.

[0160] Further, the L1 / L2 UE-to-UE CLI measurement and reporting mechanism is mentioned in the R19 standard to be multiplexed with the existing CSI measurement and reporting mechanism. Among them, the CSI measurement is mainly used for channel measurement and interference measurement between the UE and the gNB.

[0161] FIG. 9 is a schematic diagram of time-frequency resource allocation in an SBFD GB scheme, and FIG. 10 is a schematic diagram of time-frequency resource allocation in another SBFD GB scheme.

[0162] In order to reduce cross-link interference, a guard band can be introduced between adjacent downlink subbands and uplink subbands, as shown in FIGS. 9 and 10. No data transmission is performed in the guard band, and the base station device and the terminal device only perform downlink transmission and uplink transmission on the downlink subband and the uplink subband, respectively. In addition, the base station device and the terminal device can set the filter operating bandwidth according to the downlink subband and the uplink subband. For example, the terminal device sets the reception filter bandwidth according to the downlink subband and sets the transmission filter bandwidth according to the uplink subband. Therefore, the guard band can reduce the cross-link interference between the transmission in the downlink subband and the transmission in the uplink subband.

[0163] Since the capabilities of different terminal devices can be different, the transition band size when implementing the filter can also be different. The transition band of the filter is generally set in the guard band, and different capabilities of the terminal device have different requirements for the size of the guard band. The terminal device with stronger capability can set a smaller guard band, and the terminal device with weaker capability needs to set a larger guard band.

[0164] If the network device configures the same guard band size between the SBFD downlink sub-band and the uplink sub-band for all terminal devices, for the terminal device with weak capability, the resource transmission is affected due to too large CLI, and for the terminal device with strong capability, resource waste exists due to that the guard band cannot be used for data transmission, and the system efficiency is affected.

[0165] The terminal device supporting the SBFD function can also be referred to as an SBFD terminal device.

[0166] The SBFD uplink and downlink sub-band and GB frequency domain resource configuration method provided by the embodiments of the present application will be described in detail below in combination with FIG. 1 to FIG. 10.

[0167] FIG. 11 shows a flowchart of an SBFD uplink and downlink sub-band and GB frequency domain resource configuration method according to an embodiment of the present application, including the following steps:

[0168] In step S1101, the terminal device sends first signaling to the network device. Correspondingly, the network device receives the first signaling from the terminal device.

[0169] The first signaling includes first indication information and / or second indication information.

[0170] Optionally, the first signaling can carry the first indication information. The first indication information can be the capability of the terminal device supporting the SBFD GB. When the first indication information takes a first state value, it indicates the capability of supporting the SBFD GB, and when the first indication information takes a second state value, it indicates the capability of not supporting the SBFD GB. For example, the first state value can be true, or the first state value can be 1. The first state value can be false, or the first state value can be 0. Alternatively, when the first indication information appears, it indicates the capability of supporting the SBFD GB, and when the first indication information does not appear, it indicates the capability of not supporting the SBFD GB.

[0171] Optionally, the first indication information and the second indication information can be carried in the first signaling. The first indication information can be the capability of whether the terminal device supports the SBFD GB. When the first indication information takes a first state value, it indicates that the terminal device supports the SBFD GB. When the first indication information takes a second state value, it indicates that the terminal device does not support the SBFD GB. For example, the first state value can be true, or the first state value can be 1. The first state value can be false, or the first state value can be 0. Alternatively, the presence of the first indication information indicates that the terminal device supports the SBFD GB. The second indication information indicates the bandwidth of the SBFD GB supported by the terminal device, for example, indicating the minimum bandwidth of the SBFD GB supported by the terminal device. The bandwidth of the SBFD GB can be an absolute value, for example, X RB, X MHz or X kHz, and X is greater than 0.

[0172] Optionally, the second indication information can be carried in the first signaling. The second indication information indicates the bandwidth of the SBFD GB supported by the terminal device, for example, indicating the minimum bandwidth of the SBFD GB supported by the terminal device. The bandwidth of the SBFD GB can be an absolute value, for example, X RB, X MHz or X kHz, and X is greater than or equal to 0. When X = 0, it indicates that the SBFD GB is not supported; when X ≠ 0, it indicates that the SBFD GB is supported, and the bandwidth of the SBFD GB supported.

[0173] Optionally, the bandwidth of the SBFD GB can also be a relative value, for example, the bandwidth of the SBFD GB is related to the bandwidth of the downlink sub-band and / or the bandwidth of the uplink sub-band. Optionally, the bandwidth of the SBFD GB, denoted as GB Size, can be determined in the following way:

[0174] GB Size = Z * BW1, or GB Size = Z * BW2, or GB Size = Z * max(BW1, BW2), or GB Size = Z * min(BW1, BW2), or GB Size = Z * (BW1 + BW2), where BW1 is the bandwidth of the downlink sub-band, BW2 is the bandwidth of the uplink sub-band, further, BW1 can be the bandwidth of the downlink sub-band adjacent to the GB, and BW2 can be the bandwidth of the uplink sub-band adjacent to the GB. Z is a coefficient, Z > 0, for example, Z can take values of 0.8, 0.9, 0.1, 0.12, 0.13, etc.

[0175] Optionally, the second indication information can also be the value of Z, or the bit indication corresponding to the value of Z. Taking 2-bit indication as an example, 00, 11, 10, 11 correspond to different values of Z respectively.

[0176] Optionally, the bandwidth of the SBFD GB is related to a subcarrier spacing (SCS) supported by the terminal device, and different SCSs correspond to different SBFD GB bandwidths.

[0177] Optionally, the first signaling can be newly introduced signaling. Alternatively, the existing signaling can be reused, and the first indication information and / or the second indication information are carried on the basis of the existing signaling. The first signaling can be high-layer signaling, such as radio resource control (RRC) signaling.

[0178] Step S1101 is an optional step. The terminal device can send the first signaling to the network device, or can not send the first signaling to the network device.

[0179] Step S1102, the network device sends the second signaling to the terminal device. Correspondingly, the terminal device receives the second signaling from the network device.

[0180] The second signaling is used to indicate the frequency domain resource configuration of the uplink subband and the downlink subband of the SBFD and the GB. The frequency domain resource configuration of the uplink subband and the downlink subband of the SBFD and the GB can be at least one of the following: the frequency domain resource configuration of the uplink subband of the SBFD, the frequency domain resource configuration of the downlink subband of the SBFD, or the frequency domain resource configuration of the GB of the SBFD.

[0181] The frequency domain resource can be further extended to a frequency domain location and / or a bandwidth.

[0182] Optionally, the frequency domain resource configuration of the uplink subband and the downlink subband of the SBFD and the GB can be carried in an explicit manner or in an implicit manner.

[0183] The second signaling can include a first parameter and / or a second parameter. For example, the first parameter is used to indicate at least one of the following: the frequency domain resource of the GB of the SBFD, or the frequency domain resource of the uplink subband of the SBFD. The second parameter is used to indicate at least one of the following: the frequency domain resource of the uplink subband of the SBFD, or the frequency domain resource of the downlink subband of the SBFD.

[0184] Optionally, in an explicit indication manner, the second signaling at least contains a first parameter, and the first parameter is used to indicate at least one of the following: a frequency domain location of the SBFD GB and / or a bandwidth of the SBFD GB, a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD uplink, or a frequency domain location of the SBFD downlink subband and / or a bandwidth of the SBFD downlink subband. For example, the first parameter is used to indicate at least one of the following: a frequency domain location of the SBFD GB and / or a bandwidth of the SBFD GB, or a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD GB.

[0185] The SBFD GB bandwidth configured by the network device for the terminal device is not less than the SBFD GB bandwidth supported by the terminal device.

[0186] Optionally, in an implicit indication manner, the second signaling at least contains a second parameter, and the second parameter is used to indicate at least one of the following: a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD uplink subband, or a frequency domain location of the SBFD downlink subband and / or a bandwidth of the SBFD downlink subband. The bandwidth of the SBFD GB can be a frequency interval between adjacent SBFD downlink subbands and SBFD uplink subbands. The frequency interval between adjacent SBFD downlink subbands and SBFD uplink subbands refers to a frequency interval between an end frequency position of a subband located at a low frequency and a start frequency position of a subband located at a high frequency.

[0187] The frequency interval between adjacent SBFD uplink subbands and SBFD downlink subbands is not less than the SBFD GB bandwidth supported by the terminal device.

[0188] The second signaling can configure frequency domain resource configurations of the uplink and downlink subbands and the GB of the SBFD which are UE-specific (UE-Specific), and can also configure frequency domain resource configurations of the uplink and downlink subbands and the GB of the SBFD which are cell-common.

[0189] In addition to configuring a set of frequency domain resource configurations of the uplink and downlink subbands and the GB of the SBFD which are UE-specific, the network device can also configure a set of frequency domain resource configurations of the uplink and downlink subbands and the GB of the SBFD which are cell-common.

[0190] The frequency domain resources of the uplink and downlink subbands and the GB of the cell-common and the frequency domain resources of the uplink and downlink subbands and the GB of the UE-specific satisfy one or more of the following three relationships:

[0191] 1. The frequency domain resources of the SBFD uplink subband of the cell-common and the frequency domain resources of the SBFD uplink subband of the UE-specific are the same;

[0192] 2. The frequency domain resource of the GB of the cell-common SBFD is the same as the frequency domain resource of the GB of the UE-specific SBFD, or the frequency domain resource of the GB of the cell-common SBFD is a subset of the frequency domain resource of the GB of the UE-specific SBFD.

[0193] 3. The frequency domain resource of the downlink subband of the cell-common SBFD is the same as the frequency domain resource of the downlink subband of the UE-specific SBFD, or the frequency domain resource of the downlink subband of the UE-specific SBFD is a subset of the frequency domain resource of the downlink subband of the cell-common SBFD.

[0194] Correspondingly, the network device and / or the terminal device need to perform filter setting respectively.

[0195] The network device configures the filter working bandwidth according to the bandwidth of the uplink subband, the bandwidth of the downlink subband and the bandwidth of the GB of the cell-common SBFD. For example, the working bandwidth of the transmitting filter is configured according to the bandwidth of the uplink subband of the cell-common SBFD, and the working bandwidth of the receiving filter is configured according to the bandwidth of the downlink subband of the cell-common SBFD.

[0196] The terminal device configures the filter working bandwidth according to the bandwidth of the uplink subband, the bandwidth of the downlink subband and the bandwidth of the GB of the UE-specific SBFD. For example, the working bandwidth of the transmitting filter is configured according to the bandwidth of the uplink subband of the UE-specific SBFD, and the working bandwidth of the receiving filter is configured according to the bandwidth of the downlink subband of the UE-specific SBFD.

[0197] At least one of the following configured in step S1102: the frequency domain resource of the SBFD GB, the frequency domain resource of the SBFD uplink subband, or the frequency domain resource of the SBFD downlink subband, is for the same SCS.

[0198] FIG. 12 shows a flowchart of another method for configuring the frequency domain resources of the uplink and downlink subbands and the GB of the SBFD according to an embodiment of the present application, including the following steps:

[0199] In step S1201, the network device sends third signaling to the terminal device. Correspondingly, the terminal device receives the third signaling from the network device.

[0200] The third signaling is used to indicate the configuration of the frequency domain resources of the uplink and downlink subbands and the GB of N sets of SBFD, where N is an integer greater than or equal to 1. The configuration of the frequency domain resources of the uplink and downlink subbands and the GB of the SBFD can be at least one of the following: the configuration of the frequency domain resource of the SBFD uplink subband, the configuration of the frequency domain resource of the SBFD downlink subband, or the configuration of the frequency domain resource of the SBFD GB.

[0201] The frequency domain resource can be further extended to a frequency domain location and / or a bandwidth.

[0202] Optionally, the N sets of SBFD uplink and downlink subbands and the frequency domain resource configuration of the GB can be carried in an explicit manner or in an implicit manner.

[0203] The third signaling can include a third parameter and / or a fourth parameter. For example, the third parameter is used to indicate at least one of the following: the frequency domain resource of the N sets of SBFD GBs, or the frequency domain resource of the N sets of SBFD uplink subbands. The fourth parameter is used to indicate at least one of the following: the frequency domain resource of the N sets of SBFD uplink subbands, or the frequency domain resource of the N sets of SBFD downlink subbands.

[0204] Optionally, in the explicit indication manner, the third signaling at least contains the third parameter, and the third parameter is used to indicate at least one of the following: the frequency domain location and / or the bandwidth of the N sets of SBFD GBs, the frequency domain location and / or the bandwidth of the N sets of SBFD uplink subbands, or the frequency domain location and / or the bandwidth of the N sets of SBFD downlink subbands. For example, the third parameter is used to indicate at least one of the following: the frequency domain location and / or the bandwidth of the N sets of SBFD GBs, and / or the frequency domain location and / or the bandwidth of the N sets of SBFD uplink subbands.

[0205] Optionally, in the implicit indication manner, the third signaling at least contains the fourth parameter, and the fourth parameter is used to indicate at least one of the following: the frequency domain location and / or the bandwidth of the N sets of SBFD uplink subbands, or the frequency domain location and / or the bandwidth of the N sets of SBFD downlink subbands. The bandwidth of the SBFD GB can be the frequency interval between the adjacent SBFD downlink subband and the SBFD uplink subband. The frequency interval between the adjacent SBFD downlink subband and the SBFD uplink subband refers to the frequency interval between the frequency end position of the subband located at the low frequency and the frequency start position of the subband located at the high frequency.

[0206] When N = 1, the network device configures the SBFD GB bandwidth for the terminal device to be not less than the maximum value in the first capability set of the SBFD terminal device. The first capability set of the SBFD terminal device is predefined or determined according to a predefined rule.

[0207] The first capability set of the SBFD terminal device contains one or more predefined SBFD GB bandwidths, and each SBFD GB bandwidth can be X RB, X MHz or X kHz, and X is greater than or equal to 0.

[0208] The first capability set of the SBFD terminal device includes one or more bandwidths of the SBFD GB determined according to a predefined rule. The predefined rule can be that the bandwidth of the SBFD GB is related to the bandwidth of the downlink sub-band and / or the bandwidth of the uplink sub-band. Specifically, GB Size = Z*BW1, or GB Size = Z*BW2, or GB Size = Z*max(BW1, BW2), or GB Size = Z*min(BW1, BW2), or GB Size = Z*(BW1+BW2), where GB Size is the bandwidth of the SBFD GB, BW1 is the bandwidth of the downlink sub-band, BW2 is the bandwidth of the uplink sub-band, further, BW1 can be the bandwidth of the downlink sub-band adjacent to the GB, and BW2 can be the bandwidth of the uplink sub-band adjacent to the GB. Z is a coefficient, Z>0, for example, Z can take values of 0.8, 0.9, 0.1, 0.12, 0.13, etc.

[0209] Optionally, when N = 1, if the bandwidth of the SBFD GB indicated by the third parameter is smaller than the SBFD GB bandwidth supported by the terminal device, or the frequency interval between the adjacent SBFD downlink sub-band and the SBFD uplink sub-band indicated by the fourth parameter is smaller than the SBFD GB bandwidth supported by the terminal device, the terminal device keeps the SBFD uplink sub-band frequency domain resource unchanged, and re-determines at least one of the following: the frequency domain resource of the third SBFD GB, or the frequency domain resource of the third SBFD downlink sub-band. The bandwidth of the third SBFD GB is not smaller than the SBFD GB bandwidth supported by the terminal device, and the frequency interval between the third downlink sub-band and the adjacent SBFD uplink sub-band is not smaller than the SBFD GB bandwidth supported by the terminal device.

[0210] Optionally, when N = 1, if the bandwidth of the SBFD GB indicated by the third parameter is smaller than the SBFD GB bandwidth supported by the terminal device, or the frequency interval between the adjacent SBFD downlink sub-band and the SBFD uplink sub-band indicated by the fourth parameter is smaller than the SBFD GB bandwidth supported by the terminal device, the network device keeps the bandwidth of the SBFD downlink sub-band unchanged. If the resource scheduling downlink transmission falls outside the bandwidth range of the SBFD downlink sub-band supported by the terminal device, the terminal device only receives the transmission data within the supported SBFD downlink sub-band bandwidth, and considers the transmission data falling outside the supported SBFD downlink sub-band bandwidth as punctured.

[0211] Optionally, the third signaling can be newly introduced signaling. Alternatively, the existing signaling can be reused, that is, the signaling carrying the third parameter or the fourth parameter based on the existing signaling. The third signaling can be a system message, for example, a system information block (SIB).

[0212] The at least one of the following configured in step S1201: the frequency domain resource of the N sets of SBFD GBs, the frequency domain resource of the N sets of SBFD uplink subbands, or the frequency domain resource of the N sets of SBFD uplink subbands, is for the same SCS, N is an integer greater than or equal to 1.

[0213] In step S1202, the terminal device sends fourth signaling to the network device. Correspondingly, the network device receives the fourth signaling from the terminal device.

[0214] The fourth signaling can be carried in a physical random access channel (PRACH), a message A (MsgA) physical uplink shared channel (PUSCH), or a message 3 (Msg3) PUSCH.

[0215] The third indication information and / or the fourth indication information are included in the fourth signaling.

[0216] Optionally, the third indication information can be carried in the fourth signaling. The third indication information can be the capability of whether the terminal device supports the SBFD GB. When the third indication information takes a first state value, it indicates that the capability of supporting the SBFD GB is supported, and when the third indication information takes a second state value, it indicates that the capability of supporting the SBFD GB is not supported. For example, the first state value can be true, or the first state value can be 1. The first state value can be false, or the first state value can be 0. Alternatively, when the third indication information appears, it indicates that the capability of supporting the SBFD GB is supported, and when the third indication information does not appear, it indicates that the capability of supporting the SBFD GB is not supported.

[0217] Optionally, the third indication information and the fourth indication information can be carried in the fourth signaling. The third indication information can be the capability of whether the terminal device supports the SBFD GB. When the third indication information takes a first state value, it indicates that the capability of supporting the SBFD GB is supported, and when the third indication information takes a second state value, it indicates that the capability of supporting the SBFD GB is not supported. For example, the first state value can be true, or the first state value can be 1. The first state value can be false, or the first state value can be 0. Alternatively, when the third indication information appears, it indicates that the capability of supporting the SBFD GB is supported. The fourth indication information indicates the bandwidth of the SBFD GB supported by the terminal device, for example, indicating the minimum bandwidth of the SBFD GB supported by the terminal device. The bandwidth of the SBFD GB can be an absolute value, such as X RB, X MHz, or X kHz, X is greater than 0.

[0218] Optionally, the fourth indication information can be carried in the fourth signaling. The fourth indication information indicates a bandwidth of the supported SBFD GB of the terminal device, for example, indicates a minimum bandwidth of the supported SBFD GB of the terminal device. The bandwidth of the SBFD GB can be an absolute value, for example, X RB, X MHz or X kHz, X is greater than or equal to 0. When X = 0, it means that the SBFD GB is not supported; when X is not equal to 0, it means that the SBFD GB is supported, and the bandwidth of the supported SBFD GB.

[0219] Optionally, the bandwidth of the SBFD GB can also be a relative value, for example, the bandwidth of the SBFD GB is related to the bandwidth of the downlink sub-band and / or the bandwidth of the uplink sub-band. Optionally, the bandwidth of the SBFD GB, denoted as GB Size, can be determined in the following way:

[0220] GB Size = Z * BW1, or GB Size = Z * BW2, or GB Size = Z * max(BW1, BW2), or GB Size = Z * min(BW1, BW2), or GB Size = Z * (BW1 + BW2), wherein BW1 is the bandwidth of the downlink sub-band, BW2 is the bandwidth of the uplink sub-band, further, BW1 can be the bandwidth of the downlink sub-band adjacent to the GB, and BW2 can be the bandwidth of the uplink sub-band adjacent to the GB. Z is a coefficient, Z > 0, for example, Z can take values of 0.8, 0.9, 0.1, 0.12, 0.13, etc.

[0221] Optionally, the fourth indication information can also be the value of Z, or the bit indication corresponding to the value of Z. Taking 2-bit indication as an example, 00, 11, 10, 11 correspond to different values of Z respectively.

[0222] Optionally, the bandwidth of the SBFD GB is related to the subcarrier spacing (SCS) supported by the terminal device, and different SCS corresponds to different bandwidth of the SBFD GB.

[0223] Step S1202 is an optional step. The terminal device can send the fourth signaling to the network device, or can not send the fourth signaling to the network device.

[0224] Optionally, after receiving the fourth signaling of the terminal device and obtaining the bandwidth of the SBFD GB supported by the terminal device according to the fourth indication information, the network device determines at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: one of the N sets of frequency domain resources of the SBFD GB, one of the N sets of frequency domain resources of the SBFD uplink subband, or one of the N sets of frequency domain resources of the SBFD downlink subband, and performs data transmission with the terminal device by using at least one of the following: the determined frequency domain resource of the SBFD GB, the determined frequency domain resource of the SBFD uplink subband, or the determined frequency domain resource of the SBFD downlink subband.

[0225] In step S1203, the network device sends the fifth signaling to the terminal device. Correspondingly, the terminal device receives the fifth signaling from the network device.

[0226] Optionally, after receiving the fourth signaling of the terminal device and obtaining the bandwidth of the SBFD GB supported by the terminal device according to the fourth indication information, the network device reconfigures at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: the frequency domain resource of the second SBFD GB, the frequency domain resource of the second SBFD uplink subband, or the frequency domain resource of the second SBFD downlink subband.

[0227] The bandwidth of the second SBFD GB reconfigured by the network device is not less than the bandwidth of the SBFD GB supported by the terminal device, or the frequency interval of the adjacent second SBFD uplink subband and the second SBFD downlink subband is not less than the bandwidth of the SBFD GB supported by the terminal device.

[0228] The fifth signaling is used to carry at least one of the following reconfigured by the network device: the frequency domain resource of the second SBFD GB, the frequency domain resource of the second SBFD uplink subband, or the frequency domain resource of the second SBFD downlink subband.

[0229] The reconfiguration process can refer to the steps when N=1 in S1201.

[0230] FIG. 13 shows a flowchart of another method for configuring frequency domain resources of uplink and downlink subbands and GBs of SBFD according to an embodiment of the present application, including the following steps:

[0231] In step S1301, the network device sends the sixth signaling to the terminal device. Correspondingly, the terminal device receives the sixth signaling from the network device.

[0232] The sixth signaling can include a sixth parameter, and the sixth parameter is used to indicate configuration of frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands in a cell-specific manner.

[0233] Optionally, the sixth signaling can be carried in a system information block (SIB), for example, a system information block 1.

[0234] In step S1302, the network device sends seventh signaling to the terminal device. Correspondingly, the terminal device receives the seventh signaling from the network device.

[0235] The seventh signaling can include a seventh parameter. Optionally, the seventh parameter is used to indicate configuration of frequency domain resources of SBFD uplink subbands and frequency domain resources of SBFD downlink subbands in a UE-specific manner. Optionally, frequency domain resources of SBFD GD can be implicitly confirmed by frequency domain resources of SBFD uplink and downlink subbands.

[0236] At this time, the network device configures the terminal device with two sets of frequency domain resources of SBFD uplink subbands, i.e., frequency domain resources of SBFD uplink subbands in a cell-specific manner and frequency domain resources of SBFD uplink subbands in a UE-specific manner. The frequency domain resources of SBFD uplink subbands indicated by the sixth parameter and the frequency domain resources of SBFD uplink subbands indicated by the seventh parameter are the same, and one advantage is that uplink subband frequency domain resources of one UE and downlink subband frequency domain resources of another UE can be avoided from overlapping, thereby avoiding uplink and downlink link co-frequency interference. In the case of keeping the configuration of frequency domain resources of SBFD uplink subbands unchanged, frequency domain resources of SBFD downlink subbands can be reconfigured by the seventh signaling, and optionally, frequency domain resources of SBFD GD can be implicitly confirmed by frequency domain resources of SBFD uplink and downlink subbands.

[0237] Optionally, the seventh parameter only indicates frequency domain resources of SBFD downlink subbands in a UE-specific manner, and does not indicate frequency domain resources of SBFD uplink subbands. At this time, there is no two sets of frequency domain resources of SBFD uplink subbands, and frequency domain resources of SBFD downlink subbands can be reconfigured by the seventh signaling, and optionally, frequency domain resources of SBFD GD can be implicitly confirmed by frequency domain resources of SBFD uplink and downlink subbands. The terminal device determines resources of SBFD according to frequency domain resources of SBFD uplink subbands in a cell-specific manner and frequency domain resources of SBFD downlink subbands in a UE-specific manner.

[0238] Optionally, the seventh signaling can be carried in RRC.

[0239] FIG. 14 shows a flowchart of another method for configuring frequency domain resources of uplink and downlink subbands and GB of SBFD according to an embodiment of the present application, including the following steps.

[0240] In step S1401, the network device sends eighth signaling to the terminal device. Correspondingly, the terminal device receives the eighth signaling from the network device.

[0241] The eighth signaling can include an eighth parameter, which is used to indicate frequency domain resources of cell-specific SBFD uplink subbands.

[0242] Optionally, the eighth signaling can be carried in a system information block (SIB), for example, SIB1.

[0243] In step S1402, the network device sends ninth signaling to the terminal device. Correspondingly, the terminal device receives the ninth signaling from the network device.

[0244] The ninth signaling can include a ninth parameter. Optionally, the ninth parameter is used to indicate configuration of frequency domain resources of UE-specific SBFD downlink subbands.

[0245] At this time, the network device configures the terminal device with frequency domain resources of cell-specific SBFD uplink subbands and frequency domain resources of UE-specific SBFD downlink subbands. Optionally, frequency domain resources of SBFD GD can be implicitly confirmed by frequency domain resources of SBFD uplink and downlink subbands. The terminal device determines resources of SBFD according to the frequency domain resources of cell-specific SBFD uplink subbands and the frequency domain resources of UE-specific SBFD downlink subbands.

[0246] Optionally, the ninth signaling can be carried in RRC.

[0247] FIG. 15 shows a flowchart of another method for configuring frequency domain resources of uplink and downlink subbands and GB of SBFD according to an embodiment of the present application, including the following steps.

[0248] In step S1501, the network device sends tenth signaling to the terminal device. Correspondingly, the terminal device receives the tenth signaling from the network device.

[0249] The tenth signaling can include a tenth parameter, which is used to indicate configuration of frequency domain resources of cell-specific SBFD uplink subbands and frequency domain resources of SBFD downlink subbands. Optionally, frequency domain resources of SBFD GD can be implicitly confirmed by frequency domain resources of SBFD uplink and downlink subbands.

[0250] Optionally, the tenth signaling can be carried in a system information block (SIB), for example, SIB1.

[0251] At step S1502, the network device sends the eleventh signaling to the terminal device. Correspondingly, the terminal device receives the eleventh signaling from the network device.

[0252] The eleventh signaling can include the eleventh parameter. Optionally, the eleventh parameter is used to indicate the configuration of the frequency domain resource of the SBFD uplink subband and the frequency domain resource of the SBFD downlink subband specific to the UE. Optionally, the frequency domain resource of the SBFD GD can be implicitly confirmed by the frequency domain resource of the SBFD uplink and downlink subband.

[0253] At this time, the network device configures the terminal device with two sets of frequency domain resources of the SBFD uplink subband, i.e., the frequency domain resource of the SBFD uplink subband common to the cell and the frequency domain resource of the SBFD uplink subband specific to the UE. The frequency domain resource of the SBFD downlink subband indicated by the tenth parameter and the frequency domain resource of the SBFD downlink subband indicated by the eleventh parameter are the same, which has the advantage of avoiding the overlap of the frequency domain resource of the uplink subband of one UE and the frequency domain resource of the downlink subband of another UE, thereby avoiding the same frequency interference between the uplink and the downlink. In the case of keeping the configuration of the frequency domain resource of the SBFD downlink subband unchanged, the frequency domain resource of the SBFD uplink subband can be reconfigured by the eleventh signaling, and optionally, the frequency domain resource of the SBFD GD can be implicitly confirmed by the frequency domain resource of the SBFD uplink and downlink subband.

[0254] Optionally, the eleventh parameter only indicates the frequency domain resource of the SBFD uplink subband specific to the UE, and does not indicate the frequency domain resource of the SBFD downlink subband. At this time, there is no frequency domain resource of the SBFD downlink subband, and the frequency domain resource of the SBFD uplink subband can be reconfigured by the eleventh signaling, and optionally, the frequency domain resource of the SBFD GD can be implicitly confirmed by the frequency domain resource of the SBFD uplink and downlink subband. The terminal device determines the resource of the SBFD according to the frequency domain resource of the SBFD downlink subband common to the cell and the frequency domain resource of the SBFD uplink subband specific to the UE.

[0255] Optionally, the eleventh signaling can be carried in the RRC.

[0256] It can be understood that the method and / or steps implemented by the terminal device in the above embodiments can also be implemented by a component (such as a chip or circuit) available for the terminal device or an apparatus containing the terminal device; and the method and / or steps implemented by the network device can also be implemented by a component (such as a chip or circuit) available for the network device or an apparatus containing the network device.

[0257] It can be understood that, in order to realize the above functions, the terminal device or the network device comprises hardware structures and / or software modules corresponding to the functions. Those skilled in the art can easily understand that, in combination with the embodiments disclosed in the present text, the units and algorithm steps of the examples described in the present text can be realized in the form of hardware or a combination of hardware and computer software. Whether a certain function is realized in the form of hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to realize the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0258] The embodiments of the present application can divide the terminal device or the network device into function modules according to the above-mentioned method embodiments, for example, each function module can be divided according to each function, or two or more functions can be integrated into one processing module. The integrated module can be realized in the form of hardware or in the form of a software function module. It should be noted that the division of the modules in the embodiments of the present application is illustrative, and is only a logical function division. Actual implementation can have another division manner.

[0259] For example, the terminal device in the embodiments of the present application can be realized in the form of the communication apparatus 10 shown in FIG. 16. The communication apparatus 10 can comprise a receiving module 1001. Optionally, the communication apparatus 10 can further comprise a sending module 1002. The communication apparatus 10 is used to realize the functions of the terminal device in the above-mentioned method embodiments shown in FIG. 11 or FIG. 12, or the communication apparatus 10 is used to realize the functions of the network device in the above-mentioned method embodiments shown in FIG. 11 to FIG. 15.

[0260] For example, when the communication apparatus 10 is used to realize the functions of the terminal device in the above-mentioned method embodiment shown in FIG. 11, the communication apparatus 10 comprises the receiving module 1001 and the sending module 1002. The sending module 1002 is used to send the first signaling, and the receiving module 1001 is used to receive the second signaling.

[0261] For example, when the communication apparatus 10 is used to realize the functions of the network device in the above-mentioned method embodiment shown in FIG. 11, the communication apparatus 10 comprises the receiving module 1001 and the sending module 1002. The sending module 1002 is used to send the second signaling, and the receiving module 1001 is used to receive the first signaling.

[0262] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the terminal device in the method embodiment shown in FIG. 12, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The sending module 1002 is configured to send the fourth signaling, and the receiving module 1001 is configured to receive the third signaling and / or the fifth signaling.

[0263] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the network device in the method embodiment shown in FIG. 12, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The sending module 1002 is configured to send the third signaling and / or the fifth signaling, and the receiving module 1001 is configured to receive the fourth signaling.

[0264] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the terminal device in the method embodiment shown in FIG. 13, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The sending module 1002 is configured to send the sixth signaling and the seventh signaling.

[0265] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the network device in the method embodiment shown in FIG. 13, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The receiving module 1001 is configured to receive the sixth signaling and the seventh signaling.

[0266] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the terminal device in the method embodiment shown in FIG. 14, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The sending module 1002 is configured to send the eighth signaling and the ninth signaling.

[0267] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the network device in the method embodiment shown in FIG. 14, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The receiving module 1001 is configured to receive the eighth signaling and the ninth signaling.

[0268] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the terminal device in the method embodiment shown in FIG. 15, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The sending module 1002 is configured to send the tenth signaling and the eleventh signaling.

[0269] Exemplarily, when the communication apparatus 10 is configured to implement the functions of the network device in the method embodiment shown in FIG. 15, the communication apparatus 10 comprises a receiving module 1001 and a sending module 1002. The receiving module 1001 is configured to receive the tenth signaling and the eleventh signaling.

[0270] For more details of the receiving module 1001 and the sending module 1002, please refer to the descriptions in the method embodiments shown in FIGS. 11-15.

[0271] In this embodiment, the communication device 10 is in the form of dividing each functional module in an integrated manner. The "module" here can refer to a specific ASIC, a circuit, a processor and a memory executing one or more software or firmware programs, an integrated logic circuit, and / or other devices that can provide the above functions.

[0272] In a simple embodiment, those skilled in the art can conceive that the communication device 10 can be in the form of the communication device 110 shown in FIG. 2.

[0273] For example, the processor 111 in the communication device 110 shown in FIG. 2 can make the communication device 10 execute the resource configuration method in the above method embodiments by invoking the programs stored in the memory 112. Specifically, part of the functions / implementation processes of the receiving module 1001 and the sending module 1002 in FIG. 10 can be implemented by the transceiver 115.

[0274] Since the communication device 10 and the communication device 1100 provided in this embodiment can execute the above measurement reporting method, the technical effects they can obtain can refer to the above method embodiments, which will not be repeated here.

[0275] It should be noted that one or more of the above modules or units can be implemented in software, hardware, or a combination of both. When any of the above modules or units is implemented in software, the software exists in the form of computer program instructions and is stored in the memory. The processor can be used to execute the program instructions and implement the above method flow. The processor can be built in the SoC (System on Chip) or the ASIC, or be a separate semiconductor chip. The processor further includes a core for executing software instructions to perform operations or processing, and can further include necessary hardware accelerators, such as field programmable gate array (FPGA), programmable logic device (PLD), or logic circuit for implementing special logic operations.

[0276] When the above modules or units are implemented in hardware, the hardware can be any one or any combination of CPUs, microprocessors, digital signal processing (DSP) chips, microcontroller units (MCUs), artificial intelligence processors, ASICs, SoCs, FPGAs, PLDs, special purpose digital circuits, hardware accelerators, or non-integrated discrete devices, which can run necessary software or be independent of software to perform the above method flows.

[0277] Optionally, the embodiment of the present application further provides a chip system, comprising: at least one processor and an interface, the at least one processor is coupled with a memory through the interface, and when the at least one processor executes a computer program or instructions in the memory, the method in any of the above method embodiments is executed. In a possible implementation manner, the communication device further comprises the memory. Optionally, the chip system can be composed of a chip, or can comprise a chip and other discrete devices, and the embodiment of the present application does not make a specific limitation hereon.

[0278] In the above embodiments, all or part of the embodiments can be implemented by software, hardware, firmware or any combination thereof. When implemented by software, all or part of the embodiments can be implemented in the form of a computer program product. The computer program product comprises one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network or other programmable devices. The computer instructions can be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode. The computer readable storage medium can be any available medium that can be accessed by a computer or data storage device including one or more servers, data centers, etc. integrated with the medium. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0279] Although the application has been described in connection with various embodiments, it will be understood that the application is capable of further modifications. These modifications will be apparent to those skilled in the art taking into account the disclosure and the appended claims. In the claims, the term "comprising" does not exclude other elements or steps, and the indefinite articles "a" or "an" do not exclude a plurality. A single processor or other unit can fulfil the functions of several items recited in the claims. The terms "first", "second" and the like do not imply any ordering, but rather are used as namers. The terms "comprise", "comprising", "include", "including" and the like are used herein to mean including at least the recited item, but not to the exclusion of other items.

Claims

1. A method of communication, comprising: Comprising: receiving / sending second signaling, the second signaling including a first parameter or a second parameter, the first parameter is used to indicate at least one of the following: frequency domain resources of a subband full duplex (SBFD) guard band (GB), or frequency domain resources of an SBFD uplink subband; the second parameter is used to indicate at least one of the following: frequency domain resources of an SBFD uplink subband, or frequency domain resources of an SBFD downlink subband.

2. The method of claim 1, wherein the frequency domain resources of the SBFD GB can include a frequency domain location of the SBFD GB and / or a bandwidth of the SBFD GB, the frequency domain resources of the SBFD uplink subband can include a frequency domain location of the SBFD uplink subband and / or a bandwidth of the SBFD uplink subband, the frequency domain resources of the SBFD downlink subband can include a frequency domain location of the SBFD downlink subband and / or a bandwidth of the SBFD downlink subband.

3. The method of claim 2, wherein the bandwidth of the SBFD GB indicated by the first parameter is not less than a bandwidth of an SBFD GB supported by a terminal device.

4. The method of claim 2, wherein a frequency interval of adjacent SBFD uplink subbands and SBFD downlink subbands indicated by the second parameter is not less than a bandwidth of an SBFD GB supported by a terminal device.

5. The method of any one of claims 3-4, wherein the bandwidth of the SBFD GB supported by the terminal device is reported through first signaling.

6. The method of claim 1, wherein the second signaling is radio resource control (RRC) signaling.

7. The method of claim 1, wherein the frequency domain resources of the SBFD GB and / or the frequency domain resources of the SBFD uplink subband indicated by the first parameter are UE-specific or cell-common, or the frequency domain resources of the SBFD uplink subband and / or the frequency domain resources of the SBFD downlink subband indicated by the second parameter are UE-specific or cell-common.

8. A method for capability reporting, the method comprising: Comprising: sending / receiving first signaling, the first signaling including first indication information and / or second indication information, the first indication information indicates whether a terminal device supports an SBFD GB capability, the second indication information indicates a bandwidth of an SBFD GB supported by a terminal device.

9. The method of claim 8, wherein the bandwidth of the SBFD GB is a minimum bandwidth of an SBFD GB supported by a terminal device.

10. The method of any one of claims 8, wherein the bandwidth of the SBFD GB is related to a bandwidth of an SBFD downlink subband and / or a bandwidth of an SBFD uplink subband.

11. The method of claim 8, wherein the first indication information indicates that the network device supports the capability of the SBFD GB when the first indication information has a first state value, and indicates that the network device does not support the capability of the SBFD GB when the first indication information has a second state value.

12. The method of claim 8, wherein the first indication information indicates that the network device supports the capability of the SBFD GB.

13. The method of any one of claims 8-11, wherein the first signaling is RRC signaling. including: sending third signaling, the third signaling including a third parameter or a fourth parameter, the third parameter indicating at least one of the following: frequency domain resources of N sets of SBFD GBs, or frequency domain resources of N sets of SBFD uplink subbands, 14. A method of communication, comprising: the fourth parameter indicating at least one of the following: frequency domain resources of N sets of SBFD uplink subbands, or frequency domain resources of N sets of SBFD downlink subbands, N is an integer greater than or equal to 1.

15. The method of claim 14, wherein the frequency domain resources of the SBFD GBs can include frequency domain locations of the SBFD GBs and / or bandwidths of the SBFD GBs, the frequency domain resources of the SBFD uplink subbands can include frequency domain locations of the SBFD uplink subbands and / or bandwidths of the SBFD uplink subbands, the frequency domain resources of the SBFD downlink subbands can include frequency domain locations of the SBFD downlink subbands and / or bandwidths of the SBFD downlink subbands.

16. The method of any one of claims 15, wherein when N = 1, the bandwidth of the SBFD GBs is not less than a maximum value in a first capability set of the SBFD terminal device.

17. The method of claim 16, wherein the first capability set of the SBFD terminal device is predefined or determined according to a predefined rule. when N is greater than 1, the network device determines at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: one of the N sets of frequency domain resources of the SBFD GBs, one of the N sets of frequency domain resources of the SBFD uplink subbands, or one of the N sets of frequency domain resources of the SBFD downlink subbands. the network device receives fourth signaling including fourth indication information, the fourth indication information indicating the bandwidth of the SBFD GB supported by the terminal device.

20. The method of claim 19, wherein the network device reconfigures at least one of the following according to the bandwidth of the SBFD GB supported by the terminal device: frequency domain resources of a second SBFD GB, frequency domain resources of a second SBFD uplink subband, or frequency domain resources of a second SBFD downlink subband.

21. The method of claim 19, wherein ​ 18. The method according to any one of claims 14-17, characterized by , ​ 19. The method according to any one of claims 14-18, characterized by , ​ ​ ​ ​ ​ The fourth signaling is carried in a physical random access channel (PRACH), a message A (MsgA) physical uplink shared channel (PUSCH), or a message 3 (Msg3) PUSCH.

22. A method of communication, comprising: Comprise: Receiving third signaling, the third signaling comprising a third parameter and / or a fourth parameter, The third parameter is used to indicate at least one of the following: N sets of frequency domain resources of SBFD GBs, or N sets of frequency domain resources of SBFD uplink subbands, The fourth parameter is used to indicate at least one of the following: N sets of frequency domain resources of SBFD uplink subbands, or N sets of frequency domain resources of SBFD downlink subbands, N is an integer greater than or equal to 1.

23. The method of claim 22, wherein The frequency domain resources of the SBFD GBs can include frequency domain positions of the SBFD GBs and / or bandwidths of the SBFD GBs, The frequency domain resources of the SBFD uplink subbands can include frequency domain positions of the SBFD uplink subbands and / or bandwidths of the SBFD uplink subbands, The frequency domain resources of the SBFD downlink subbands can include frequency domain positions of the SBFD downlink subbands and / or bandwidths of the SBFD downlink subbands.

24. The method of any one of claim 23, wherein When N = 1, the bandwidth of the SBFD GB is not less than the maximum value in a first capability set of the SBFD terminal device.

25. The method of claim 24, wherein The first capability set of the SBFD terminal device is predefined or determined according to a predefined rule.

26. The method of any one of claims 23-25, wherein When N = 1, if the bandwidth of the SBFD GB is less than the bandwidth of the SBFD GB supported by the terminal device, the terminal device keeps the frequency domain resources of the SBFD uplink subband unchanged and determines at least one of the following: frequency domain resources of a third SBFD GB, or frequency domain resources of a third SBFD downlink subband.

27. The method of claim 26, wherein The bandwidth of the third SBFD GB is not less than the bandwidth of the SBFD GB supported by the terminal device, The frequency interval between the third SBFD downlink subband and the adjacent SBFD uplink subband is not less than the bandwidth of the SBFD GB supported by the terminal device.

28. The method of any one of claims 22-27, wherein , Sending fourth signaling, the fourth signaling comprising fourth indication information, The fourth indication information indicates the bandwidth of the SBFD GB supported by the terminal device.

29. The method of claim 28, wherein The fourth signaling is carried in a physical random access channel (PRACH), a message A (MsgA) physical uplink shared channel (PUSCH), or a message 3 (Msg3) PUSCH.

30. A method of communication, comprising: Comprise: Receiving / sending a sixth signaling, the sixth signaling comprising a sixth parameter, Receiving / sending a seventh signaling, the seventh signaling comprising a seventh parameter, The sixth parameter is used to indicate the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband, The sixth parameter indicates that the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband are cell-common, The seventh parameter is used to indicate the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband, The seventh parameter indicates that the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband are UE-specific, and the frequency domain resources of the SBFD downlink subband indicated by the sixth parameter and the frequency domain resources of the SBFD uplink subband indicated by the seventh parameter are the same. Or, The seventh parameter is used to indicate the frequency domain resources of the SBFD downlink subband, The seventh parameter indicates that the frequency domain resources of the SBFD downlink subband are UE-specific.

31. The method of claim 30, wherein: The sixth signaling is carried in a system information block (SIB).

32. The method of claim 30, wherein: The seventh signaling is carried in RRC.

33. A method of communication, comprising: Comprise: Receiving / sending an eighth signaling, the eighth signaling comprising an eighth parameter, Receiving / sending a ninth signaling, the ninth signaling comprising a ninth parameter, The eighth parameter is used to indicate the frequency domain resources of the SBFD uplink subband, The eighth parameter indicates that the frequency domain resources of the SBFD uplink subband are cell-common, The ninth parameter is used to indicate the frequency domain resources of the SBFD downlink subband, The ninth parameter indicates that the frequency domain resources of the SBFD downlink subband are UE-specific.

34. The method of claim 33, wherein: The eighth signaling is carried in a SIB.

35. The method of claim 33, wherein: The ninth signaling is carried in RRC.

36. A method of communication, the method comprising: Comprise: Receiving / sending a tenth signaling, the tenth signaling comprising a tenth parameter, Receiving / sending an eleventh signaling, the eleventh signaling comprising an eleventh parameter, The tenth parameter is used to indicate the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband, The tenth parameter indicates that the frequency domain resources of the SBFD uplink subband and the frequency domain resources of the SBFD downlink subband are cell-common, The eleventh parameter is used to indicate the frequency domain resource of the SBFD uplink sub-band and the frequency domain resource of the SBFD downlink sub-band. The frequency domain resource of the SBFD uplink sub-band indicated by the eleventh parameter and the frequency domain resource of the SBFD downlink sub-band are UE-specific, and the frequency domain resource of the SBFD downlink sub-band indicated by the tenth parameter and the frequency domain resource of the SBFD downlink sub-band indicated by the eleventh parameter are the same. Or, The eleventh parameter is used to indicate the frequency domain resource of the SBFD uplink sub-band. The frequency domain resource of the SBFD uplink sub-band indicated by the eleventh parameter is UE-specific.

37. The method of claim 36, wherein: The tenth signaling is carried in a SIB.

38. The method of claim 36, wherein: The eleventh signaling is carried in a RRC.

39. A communications device, characterized by The communication device comprises at least one processor coupled to at least one memory for executing computer instructions stored in the memory to cause the communication device to perform the method of any one of claims 1-38.

40. A communication system, characterized by The apparatus of claim 39.

41. A chip or chip system, characterized by The chip or chip system comprises at least one processing circuitry for running a computer program to cause the chip or chip system to perform the method of any one of claims 1-38.

42. A computer-readable storage medium, comprising: The computer readable storage medium has stored thereon a computer program or instructions which, when executed on a computer, cause the computer to perform the method of any one of claims 1-38.

43. A computer program product, characterised in that, The computer program product, when executed on a computer, causes the computer to perform the method of any one of claims 1-38.

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